feat: Implement admin user and pending course management, instructor course listing, and a dedicated admin service.

Backend/src/controllers/AdminCourseApprovalController.ts

@@ -1,11 +1,10 @@
 import { Body, Get, Path, Post, Request, Response, Route, Security, SuccessResponse, Tags } from 'tsoa';
 import { ValidationError } from '../middleware/errorHandler';
 import { AdminCourseApprovalService } from '../services/AdminCourseApproval.service';
-import { ApproveCourseValidator, RejectCourseValidator } from '../validators/AdminCourseApproval.validator';
+import { RejectCourseValidator } from '../validators/AdminCourseApproval.validator';
 import {
     ListPendingCoursesResponse,
     GetCourseDetailForAdminResponse,
-    ApproveCourseBody,
     ApproveCourseResponse,
     RejectCourseBody,
     RejectCourseResponse,
@@ -61,19 +60,12 @@ export class AdminCourseApprovalController {
     @Response('404', 'Course not found')
     public async approveCourse(
         @Request() request: any,
-        @Path() courseId: number,
-        @Body() body?: ApproveCourseBody
+        @Path() courseId: number
     ): Promise<ApproveCourseResponse> {
         const token = request.headers.authorization?.replace('Bearer ', '');
         if (!token) throw new ValidationError('No token provided');
 
-        // Validate body if provided
-        if (body) {
-            const { error } = ApproveCourseValidator.validate(body);
-            if (error) throw new ValidationError(error.details[0].message);
-        }
-
-        return await AdminCourseApprovalService.approveCourse(token, courseId, body?.comment);
+        return await AdminCourseApprovalService.approveCourse(token, courseId, undefined);
     }
 
     /**

Backend/src/controllers/AuditController.ts

@@ -169,8 +169,8 @@ export class AuditController {
             throw new ValidationError('No token provided');
         }
 
-        if (days < 30) {
-            throw new ValidationError('Cannot delete logs newer than 30 days');
+        if (days < 6) {
+            throw new ValidationError('Cannot delete logs newer than 6 days');
         }
 
         const deleted = await auditService.deleteOldLogs(days);

Backend/src/controllers/RecommendedCoursesController.ts

@@ -20,10 +20,14 @@ export class RecommendedCoursesController {
     @SuccessResponse('200', 'Approved courses retrieved successfully')
     @Response('401', 'Unauthorized')
     @Response('403', 'Forbidden - Admin only')
-    public async listApprovedCourses(@Request() request: any): Promise<ListApprovedCoursesResponse> {
+    public async listApprovedCourses(
+        @Request() request: any,
+        @Query() search?: string,
+        @Query() categoryId?: number
+    ): Promise<ListApprovedCoursesResponse> {
         const token = request.headers.authorization?.replace('Bearer ', '');
         if (!token) throw new ValidationError('No token provided');
-        return await RecommendedCoursesService.listApprovedCourses(token);
+        return await RecommendedCoursesService.listApprovedCourses(token, { search, categoryId });
     }
 
     /**

Backend/src/controllers/UserController.ts

@@ -10,7 +10,8 @@ import {
     ChangePasswordResponse,
     updateAvatarResponse,
     SendVerifyEmailResponse,
-    VerifyEmailResponse
+    VerifyEmailResponse,
+    rolesResponse
 } from '../types/user.types';
 import { ChangePassword } from '../types/auth.types';
 import { profileUpdateSchema, changePasswordSchema } from "../validators/user.validator";
@@ -56,6 +57,18 @@ export class UserController {
         return await this.userService.updateProfile(token, body);
     }
 
+    @Get('roles')
+    @Security('jwt')
+    @SuccessResponse('200', 'Roles retrieved successfully')
+    @Response('401', 'Invalid or expired token')
+    public async getRoles(@Request() request: any): Promise<rolesResponse> {
+        const token = request.headers.authorization?.replace('Bearer ', '');
+        if (!token) {
+            throw new ValidationError('No token provided');
+        }
+        return await this.userService.getRoles(token);
+    }
+
     /**
      * Change password
      * @summary Change user password using old password

Backend/src/services/AdminCourseApproval.service.ts

@@ -113,7 +113,7 @@ export class AdminCourseApprovalService {
     /**
      * Get course details for admin review
      */
-    static async getCourseDetail(token: string,courseId: number): Promise<GetCourseDetailForAdminResponse> {
+    static async getCourseDetail(token: string, courseId: number): Promise<GetCourseDetailForAdminResponse> {
         try {
             const course = await prisma.course.findUnique({
                 where: { id: courseId },
@@ -133,7 +133,11 @@ export class AdminCourseApprovalService {
                     },
                     chapters: {
                         orderBy: { sort_order: 'asc' },
-                        include: {
+                        select: {
+                            id: true,
+                            title: true,
+                            sort_order: true,
+                            is_published: true,
                             lessons: {
                                 orderBy: { sort_order: 'asc' },
                                 select: {

Backend/src/services/CoursesStudent.service.ts

@@ -340,6 +340,19 @@ export class CoursesStudentService {
                 throw new ForbiddenError('You are not enrolled in this course');
             }
 
+            // Update last_accessed_at (fire-and-forget — ไม่ block response)
+            if (enrollment.status === 'ENROLLED') {
+                prisma.enrollment.update({
+                    where: {
+                        unique_enrollment: {
+                            user_id: decoded.id,
+                            course_id,
+                        },
+                    },
+                    data: { last_accessed_at: new Date() },
+                }).catch(err => logger.warn(`Failed to update last_accessed_at: ${err}`));
+            }
+
             // Get all lesson progress for this user and course
             const lessonIds = course.chapters.flatMap(ch => ch.lessons.map(l => l.id));
             const lessonProgress = await prisma.lessonProgress.findMany({
@@ -1249,17 +1262,17 @@ export class CoursesStudentService {
         } catch (error) {
             logger.error(`Error completing lesson: ${error}`);
             const decoded = jwt.decode(input.token) as { id: number } | null;
-                await auditService.logSync({
-                    userId: decoded?.id || 0,
-                    action: AuditAction.ERROR,
-                    entityType: 'LessonProgress',
-                    entityId: input.lesson_id,
-                    metadata: {
-                        operation: 'complete_lesson',
-                        lesson_id: input.lesson_id,
-                        error: error instanceof Error ? error.message : String(error)
-                    }
-                });
+            await auditService.logSync({
+                userId: decoded?.id || 0,
+                action: AuditAction.ERROR,
+                entityType: 'LessonProgress',
+                entityId: input.lesson_id,
+                metadata: {
+                    operation: 'complete_lesson',
+                    lesson_id: input.lesson_id,
+                    error: error instanceof Error ? error.message : String(error)
+                }
+            });
             throw error;
         }
     }

Backend/src/services/RecommendedCourses.service.ts

@@ -8,7 +8,8 @@ import {
     ListApprovedCoursesResponse,
     GetCourseByIdResponse,
     ToggleRecommendedResponse,
-    RecommendedCourseData
+    RecommendedCourseData,
+    RecommendedCourseDetailData
 } from '../types/RecommendedCourses.types';
 import { auditService } from './audit.service';
 import { AuditAction } from '@prisma/client';
@@ -18,10 +19,24 @@ export class RecommendedCoursesService {
     /**
      * List all approved courses (for admin to manage recommendations)
      */
-    static async listApprovedCourses(token: string): Promise<ListApprovedCoursesResponse> {
+    static async listApprovedCourses(
+        token: string,
+        filters?: { search?: string; categoryId?: number }
+    ): Promise<ListApprovedCoursesResponse> {
         try {
+            const { search, categoryId } = filters ?? {};
+
             const courses = await prisma.course.findMany({
-                where: { status: 'APPROVED' },
+                where: {
+                    status: 'APPROVED',
+                    ...(categoryId ? { category_id: categoryId } : {}),
+                    ...(search ? {
+                        OR: [
+                            { title: { path: ['th'], string_contains: search } },
+                            { title: { path: ['en'], string_contains: search } }
+                        ]
+                    } : {})
+                },
                 orderBy: [
                     { is_recommended: 'desc' },
                     { updated_at: 'desc' }
@@ -40,9 +55,9 @@ export class RecommendedCoursesService {
                             }
                         }
                     },
-                    chapters: {
-                        include: {
-                            lessons: true
+                    _count: {
+                        select: {
+                            chapters: true
                         }
                     }
                 }
@@ -81,8 +96,7 @@ export class RecommendedCoursesService {
                         is_primary: i.is_primary,
                         user: i.user
                     })),
-                    chapters_count: course.chapters.length,
-                    lessons_count: course.chapters.reduce((sum, ch) => sum + ch.lessons.length, 0)
+                    chapters_count: course._count.chapters,
                 } as RecommendedCourseData;
             }));
 
@@ -158,7 +172,7 @@ export class RecommendedCoursesService {
                 }
             }
 
-            const data: RecommendedCourseData = {
+            const data: RecommendedCourseDetailData = {
                 id: course.id,
                 title: course.title as { th: string; en: string },
                 slug: course.slug,
@@ -181,8 +195,15 @@ export class RecommendedCoursesService {
                     is_primary: i.is_primary,
                     user: i.user
                 })),
-                chapters_count: course.chapters.length,
-                lessons_count: course.chapters.reduce((sum, ch) => sum + ch.lessons.length, 0)
+                chapters: course.chapters.map(ch => ({
+                    id: ch.id,
+                    title: ch.title as { th: string; en: string },
+                    sort_order: ch.sort_order,
+                    lessons: ch.lessons.map(l => ({
+                        id: l.id,
+                        title: l.title as { th: string; en: string }
+                    }))
+                }))
             };
 
             return {

Backend/src/services/courses.service.ts

@@ -103,18 +103,53 @@ export class CoursesService {
             const course = await prisma.course.findFirst({
                 where: {
                     id,
-                    status: 'APPROVED' // Only show approved courses to students
+                    status: 'APPROVED'
                 },
                 include: {
+                    creator: {
+                        select: {
+                            id: true,
+                            username: true,
+                            email: true,
+                            profile: {
+                                select: {
+                                    first_name: true,
+                                    last_name: true,
+                                    avatar_url: true
+                                }
+                            }
+                        }
+                    },
+                    instructors: {
+                        include: {
+                            user: {
+                                select: {
+                                    id: true,
+                                    username: true,
+                                    email: true,
+                                    profile: {
+                                        select: {
+                                            first_name: true,
+                                            last_name: true,
+                                            avatar_url: true
+                                        }
+                                    }
+                                }
+                            }
+                        }
+                    },
+                    category: {
+                        select: { id: true, name: true }
+                    },
                     chapters: {
+                        orderBy: { sort_order: 'asc' },
                         select: {
                             id: true,
                             title: true,
+                            sort_order: true,
                             lessons: {
-                                select: {
-                                    id: true,
-                                    title: true,
-                                }
+                                orderBy: { sort_order: 'asc' },
+                                select: { id: true, title: true }
                             }
                         }
                     }
@@ -138,12 +173,69 @@ export class CoursesService {
                     logger.warn(`Failed to generate presigned URL for thumbnail: ${err}`);
                 }
             }
+
+            // Generate presigned URL for creator avatar
+            let creator_avatar_url: string | null = null;
+            if (course.creator.profile?.avatar_url) {
+                try {
+                    creator_avatar_url = await getPresignedUrl(course.creator.profile.avatar_url, 3600);
+                } catch (err) {
+                    logger.warn(`Failed to generate presigned URL for creator avatar: ${err}`);
+                }
+            }
+
+            // Generate presigned URLs for instructor avatars
+            const instructorsWithAvatar = await Promise.all(course.instructors.map(async (i) => {
+                let avatar_url: string | null = null;
+                if (i.user.profile?.avatar_url) {
+                    try {
+                        avatar_url = await getPresignedUrl(i.user.profile.avatar_url, 3600);
+                    } catch (err) {
+                        logger.warn(`Failed to generate presigned URL for instructor avatar: ${err}`);
+                    }
+                }
+                return {
+                    user_id: i.user_id,
+                    is_primary: i.is_primary,
+                    user: {
+                        ...i.user,
+                        profile: i.user.profile ? {
+                            ...i.user.profile,
+                            avatar_url
+                        } : null
+                    }
+                };
+            }));
+
             return {
                 code: 200,
                 message: 'Course fetched successfully',
                 data: {
                     ...course,
+                    title: course.title as { th: string; en: string },
+                    description: course.description as { th: string; en: string },
                     thumbnail_url: thumbnail_presigned_url,
+                    creator: {
+                        ...course.creator,
+                        profile: course.creator.profile ? {
+                            ...course.creator.profile,
+                            avatar_url: creator_avatar_url
+                        } : null
+                    },
+                    instructors: instructorsWithAvatar,
+                    category: course.category ? {
+                        id: course.category.id,
+                        name: course.category.name as { th: string; en: string }
+                    } : null,
+                    chapters: course.chapters.map(ch => ({
+                        id: ch.id,
+                        title: ch.title as { th: string; en: string },
+                        sort_order: ch.sort_order,
+                        lessons: ch.lessons.map(l => ({
+                            id: l.id,
+                            title: l.title as { th: string; en: string }
+                        }))
+                    }))
                 },
             };
         } catch (error) {

Backend/src/services/user.service.ts

@@ -14,7 +14,8 @@ import {
     updateAvatarRequest,
     updateAvatarResponse,
     SendVerifyEmailResponse,
-    VerifyEmailResponse
+    VerifyEmailResponse,
+    rolesResponse
 } from '../types/user.types';
 import nodemailer from 'nodemailer';
 import { UnauthorizedError, ValidationError, ForbiddenError } from '../middleware/errorHandler';
@@ -212,6 +213,30 @@ export class UserService {
         }
     }
 
+    async getRoles(token: string): Promise<rolesResponse> {
+        try {
+            jwt.verify(token, config.jwt.secret);
+            const roles = await prisma.role.findMany({
+                select: {
+                    id: true,
+                    code: true
+                }
+            });
+            return { roles };
+        } catch (error) {
+            if (error instanceof jwt.TokenExpiredError) {
+                logger.error('JWT token expired:', error);
+                throw new UnauthorizedError('Token expired');
+            }
+            if (error instanceof jwt.JsonWebTokenError) {
+                logger.error('Invalid JWT token:', error);
+                throw new UnauthorizedError('Invalid token');
+            }
+            logger.error('Failed to get roles', { error });
+            throw error;
+        }
+    }
+
     /**
      * Upload avatar picture to MinIO
      */

Backend/src/types/AdminCourseApproval.types.ts

@@ -117,10 +117,6 @@ export interface GetCourseDetailForAdminResponse {
     data: CourseDetailForAdmin;
 }
 
-export interface ApproveCourseBody {
-    comment?: string;
-}
-
 export interface ApproveCourseResponse {
     code: number;
     message: string;

Backend/src/types/RecommendedCourses.types.ts

@@ -1,14 +1,10 @@
 import { MultiLanguageText } from './index';
 
-// ============================================
-// Request Types
-// ============================================
-
-
 // ============================================
 // Response Types
 // ============================================
 
+/** ใช้ใน listApprovedCourses — มีแค่ chapters_count */
 export interface RecommendedCourseData {
     id: number;
     title: MultiLanguageText;
@@ -41,7 +37,19 @@ export interface RecommendedCourseData {
         };
     }>;
     chapters_count: number;
-    lessons_count: number;
+}
+
+/** ใช้ใน getCourseById — มี chapters + lessons พร้อมชื่อ */
+export interface RecommendedCourseDetailData extends Omit<RecommendedCourseData, 'chapters_count'> {
+    chapters: {
+        id: number;
+        title: MultiLanguageText;
+        sort_order: number;
+        lessons: {
+            id: number;
+            title: MultiLanguageText;
+        }[];
+    }[];
 }
 
 export interface ListApprovedCoursesResponse {
@@ -54,7 +62,7 @@ export interface ListApprovedCoursesResponse {
 export interface GetCourseByIdResponse {
     code: number;
     message: string;
-    data: RecommendedCourseData;
+    data: RecommendedCourseDetailData;
 }
 
 export interface ToggleRecommendedResponse {

Backend/src/types/courses.types.ts

@@ -1,4 +1,5 @@
 import { Course } from '@prisma/client';
+import { MultiLanguageText } from './index';
 
 export interface ListCoursesInput {
     category_id?: number;
@@ -18,8 +19,47 @@ export interface listCourseResponse {
     totalPages: number;
 }
 
+export interface CourseDetail extends Omit<Course, 'title' | 'description'> {
+    title: MultiLanguageText;
+    description: MultiLanguageText;
+    creator: {
+        id: number;
+        username: string;
+        email: string;
+        profile: {
+            first_name: string;
+            last_name: string;
+            avatar_url: string | null;
+        } | null;
+    };
+    instructors: {
+        user_id: number;
+        is_primary: boolean;
+        user: {
+            id: number;
+            username: string;
+            email: string;
+            profile: {
+                first_name: string;
+                last_name: string;
+                avatar_url: string | null;
+            } | null;
+        };
+    }[];
+    category: { id: number; name: MultiLanguageText } | null;
+    chapters: {
+        id: number;
+        title: MultiLanguageText;
+        sort_order: number;
+        lessons: {
+            id: number;
+            title: MultiLanguageText;
+        }[];
+    }[];
+}
+
 export interface getCourseResponse {
     code: number;
     message: string;
-    data: Course | null;
+    data: CourseDetail | null;
 }

Backend/src/types/user.types.ts

@@ -59,6 +59,14 @@ export interface ProfileUpdateResponse {
     };
 };
 
+export interface role {
+    id: number;
+    code: string;
+}
+
+export interface rolesResponse {
+   roles: role[];
+}
 
 export interface ChangePasswordRequest {
     old_password: string;

Backend/tests/k6/enroll-load-test.js

@@ -0,0 +1,160 @@
+// Backend/tests/k6/enroll-load-test.js
+//
+// จำลองนักเรียนหลายคน login แล้ว enroll คอร์สพร้อมกัน
+//
+// Flow:
+//   1. Login
+//   2. Enroll คอร์ส
+//   3. ตรวจสอบ enrolled courses
+//
+// Usage:
+//   k6 run -e APP_URL=http://192.168.1.137:4000 -e COURSE_ID=1 tests/k6/enroll-load-test.js
+
+import http from 'k6/http';
+import { check, sleep, group } from 'k6';
+import { Rate, Trend, Counter } from 'k6/metrics';
+import { SharedArray } from 'k6/data';
+
+// ─── Custom Metrics ───────────────────────────────────────────────────────────
+const errorRate    = new Rate('errors');
+const loginTime    = new Trend('login_duration', true);
+const enrollTime   = new Trend('enroll_duration', true);
+const enrolledCount = new Counter('successful_enrollments');
+
+// ─── Load student credentials ─────────────────────────────────────────────────
+const students = new SharedArray('students', function () {
+  return JSON.parse(open('./test-credentials.json')).students;
+});
+
+// ─── Config ───────────────────────────────────────────────────────────────────
+const BASE_URL  = __ENV.APP_URL   || 'http://192.168.1.137:4000';
+const COURSE_ID = __ENV.COURSE_ID || '1';
+
+// ─── Test Options ─────────────────────────────────────────────────────────────
+export const options = {
+  stages: [
+    { duration: '20s', target: 10 },  // Ramp up
+    { duration: '1m',  target: 30 },  // Increase
+    { duration: '30s', target: 50 },  // Peak: 50 คน enroll พร้อมกัน
+    { duration: '30s', target: 0 },   // Ramp down
+  ],
+  thresholds: {
+    'login_duration':  ['p(95)<2000'],  // Login < 2s
+    'enroll_duration': ['p(95)<1000'],  // Enroll < 1s
+    'errors':          ['rate<0.05'],
+    'http_req_failed': ['rate<0.05'],
+  },
+};
+
+// ─── Helper ───────────────────────────────────────────────────────────────────
+function jsonHeaders(token) {
+  const h = { 'Content-Type': 'application/json' };
+  if (token) h['Authorization'] = `Bearer ${token}`;
+  return h;
+}
+
+// ─── Main ─────────────────────────────────────────────────────────────────────
+export default function () {
+  const student = students[__VU % students.length];
+  let token = null;
+
+  // ── Step 1: Login ──────────────────────────────────────────────────────────
+  group('1. Login', () => {
+    const res = http.post(
+      `${BASE_URL}/api/auth/login`,
+      JSON.stringify({ email: student.email, password: student.password }),
+      { headers: jsonHeaders(null) }
+    );
+
+    loginTime.add(res.timings.duration);
+    errorRate.add(res.status !== 200);
+
+    check(res, {
+      'login: status 200': (r) => r.status === 200,
+      'login: has token':  (r) => { try { return !!r.json('data.token'); } catch { return false; } },
+    });
+
+    if (res.status === 200) {
+      try { token = res.json('data.token'); } catch {}
+    }
+  });
+
+  if (!token) {
+    console.warn(`[VU ${__VU}] Login failed for ${student.email} — skipping`);
+    sleep(1);
+    return;
+  }
+
+  sleep(0.5);
+
+  // ── Step 2: Enroll ─────────────────────────────────────────────────────────
+  group('2. Enroll Course', () => {
+    const res = http.post(
+      `${BASE_URL}/api/students/courses/${COURSE_ID}/enroll`,
+      null,
+      { headers: jsonHeaders(token) }
+    );
+
+    enrollTime.add(res.timings.duration);
+
+    // 200 = enrolled, 409 = already enrolled (ถือว่าโอเค)
+    const ok = res.status === 200 || res.status === 409;
+    errorRate.add(!ok);
+
+    if (res.status === 200) enrolledCount.add(1);
+
+    check(res, {
+      'enroll: 200 or 409':    (r) => r.status === 200 || r.status === 409,
+      'enroll: fast response': (r) => r.timings.duration < 1000,
+    });
+  });
+
+  sleep(0.5);
+
+  // ── Step 3: Verify — ดึงรายการคอร์สที่ลงทะเบียน ─────────────────────────
+  group('3. Get Enrolled Courses', () => {
+    const res = http.get(
+      `${BASE_URL}/api/students/courses`,
+      { headers: jsonHeaders(token) }
+    );
+
+    errorRate.add(res.status !== 200);
+
+    check(res, {
+      'enrolled courses: status 200': (r) => r.status === 200,
+    });
+  });
+
+  sleep(1);
+}
+
+// ─── Summary ──────────────────────────────────────────────────────────────────
+export function handleSummary(data) {
+  const m   = data.metrics;
+  const avg = (k) => m[k]?.values?.avg?.toFixed(0) ?? 'N/A';
+  const p95 = (k) => m[k]?.values?.['p(95)']?.toFixed(0) ?? 'N/A';
+  const rate = (k) => ((m[k]?.values?.rate ?? 0) * 100).toFixed(2);
+  const cnt  = (k) => m[k]?.values?.count ?? 0;
+
+  return {
+    stdout: `
+╔══════════════════════════════════════════════════════════╗
+║              Course Enroll — Load Test                   ║
+╠══════════════════════════════════════════════════════════╣
+║  Course ID  : ${String(COURSE_ID).padEnd(43)}║
+╠══════════════════════════════════════════════════════════╣
+║  RESPONSE TIMES (avg / p95)                              ║
+║  Login          : ${avg('login_duration')}ms / ${p95('login_duration')}ms
+║  Enroll         : ${avg('enroll_duration')}ms / ${p95('enroll_duration')}ms
+╠══════════════════════════════════════════════════════════╣
+║  COUNTS                                                  ║
+║  Total Requests     : ${String(cnt('http_reqs')).padEnd(33)}║
+║  New Enrollments    : ${String(cnt('successful_enrollments')).padEnd(33)}║
+╠══════════════════════════════════════════════════════════╣
+║  ERROR RATES                                             ║
+║  HTTP Failed    : ${(rate('http_req_failed') + '%').padEnd(39)}║
+║  Custom Errors  : ${(rate('errors') + '%').padEnd(39)}║
+╚══════════════════════════════════════════════════════════╝
+`,
+  };
+}

Backend/tests/k6/login-load-test.js

@@ -31,7 +31,7 @@ export const options = {
     thresholds: {
         http_req_duration: ['p(95)<2000'],  // 95% of requests < 2s
         errors: ['rate<0.1'],               // Error rate < 10%
-        login_duration: ['p(95)<2000'],     // 95% of logins < 2s
+        login_duration: ['p(95)<2000'],     // 95% pof logins < 2s
     },
 };
 

Backend/tests/k6/video-watching-load-test.js

@@ -0,0 +1,269 @@
+// Backend/tests/k6/video-watching-load-test.js
+//
+// จำลองนักเรียนหลายคนดูวีดีโอพร้อมกัน (Concurrent Video Watching)
+//
+// Flow จริงที่ simulate:
+//   1. Login ด้วย account ของ student แต่ละคน
+//   2. Load หน้าเรียนคอร์ส (getCourseLearning)
+//   3. เปิดบทเรียนวีดีโอ (getLessonContent)
+//   4. Save progress ทุก 5 วินาที (จำลองการ watch)
+//   5. เมื่อดูครบ (≥90%) → mark lesson complete
+//
+// Usage:
+//   k6 run -e APP_URL=http://localhost:4000 -e COURSE_ID=1 -e LESSON_ID=1 tests/k6/video-watching-load-test.js
+//
+// ปรับจำนวน VUs และ duration ได้ด้วย:
+//   k6 run -e APP_URL=http://localhost:4000 -e COURSE_ID=1 -e LESSON_ID=1 --vus 30 --duration 2m tests/k6/video-watching-load-test.js
+
+import http from 'k6/http';
+import { check, sleep, group } from 'k6';
+import { Rate, Trend, Counter } from 'k6/metrics';
+import { SharedArray } from 'k6/data';
+
+// ─── Custom Metrics ───────────────────────────────────────────────────────────
+const errorRate         = new Rate('errors');
+const loginTime         = new Trend('login_duration', true);
+const courseLearningTime = new Trend('course_learning_duration', true);
+const lessonLoadTime    = new Trend('lesson_load_duration', true);
+const progressSaveTime  = new Trend('progress_save_duration', true);
+const completeLessonTime = new Trend('complete_lesson_duration', true);
+const completedCount    = new Counter('completed_lessons');
+const progressSaveCount = new Counter('progress_saves');
+const videoLoadTime     = new Trend('video_load_duration', true);
+
+// ─── Load student credentials ────────────────────────────────────────────────
+// อ่านจาก test-credentials.json (50 accounts)
+const students = new SharedArray('students', function () {
+  return JSON.parse(open('./test-credentials.json')).students;
+});
+
+// ─── Config ───────────────────────────────────────────────────────────────────
+const BASE_URL  = __ENV.APP_URL  || 'http://192.168.1.137:4000';
+const COURSE_ID = __ENV.COURSE_ID || '1';
+const LESSON_ID = __ENV.LESSON_ID || '1';
+
+// วีดีโอความยาว (วินาที) — ปรับตามจริง
+const VIDEO_DURATION_SECONDS = parseInt(__ENV.VIDEO_DURATION || '98'); // default 5 นาที
+
+// save progress interval: ทุก 5 วินาที (เหมือน client จริง)
+// แต่ในการ test เราจะ simulate เร็วขึ้นโดยใช้ sleep น้อยลง
+const PROGRESS_INTERVAL_SECONDS = parseInt(__ENV.PROGRESS_INTERVAL || '15');
+
+// ─── Test Options ─────────────────────────────────────────────────────────────
+export const options = {
+  stages: [
+    { duration: '30s', target: 10 },  // Ramp up: 10 คนเริ่มดูวีดีโอ
+    { duration: '1m',  target: 30 },  // Ramp up: เพิ่มเป็น 30 คน
+    { duration: '2m',  target: 30 },  // Steady: 30 คนดูพร้อมกัน
+    { duration: '30s', target: 50 },  // Peak: เพิ่มเป็น 50 คน
+    { duration: '1m',  target: 50 },  // Steady Peak: 50 คนพร้อมกัน
+    { duration: '30s', target: 0 },   // Ramp down
+  ],
+  thresholds: {
+    // Response times
+    'login_duration':           ['p(95)<2000'],    // Login < 2s
+    'course_learning_duration': ['p(95)<1000'],    // Load course page < 1s
+    'lesson_load_duration':     ['p(95)<1000'],    // Load lesson < 1s
+    'video_load_duration':      ['p(95)<3000'],    // Fetch video from MinIO < 3s
+    'progress_save_duration':   ['p(95)<500'],     // Save progress < 500ms (critical — บ่อย)
+    'complete_lesson_duration': ['p(95)<1000'],    // Complete lesson < 1s
+
+    // Error rate
+    'errors':           ['rate<0.05'],  // Error < 5%
+    'http_req_failed':  ['rate<0.05'],  // HTTP error < 5%
+  },
+};
+
+// ─── Helper ───────────────────────────────────────────────────────────────────
+function jsonHeaders(token) {
+  const h = { 'Content-Type': 'application/json' };
+  if (token) h['Authorization'] = `Bearer ${token}`;
+  return h;
+}
+
+// ─── Per-VU persistent state (จำข้ามรอบ iteration) ──────────────────────────
+// ตัวแปรนี้อยู่ระดับ module → k6 สร้างแยกต่างหากสำหรับแต่ละ VU
+// ค่าจะถูกจำไว้ตลอดอายุของ VU (ข้ามหลายรอบ iteration)
+let vuToken       = null;    // token ที่ login ไว้แล้ว
+let vuSetupDone   = false;   // เคย load course+lesson แล้วหรือยัง
+let vuProgress    = 0;       // ตำแหน่งวีดีโอปัจจุบัน (วินาที)
+let vuCompleted   = false;   // lesson complete แล้วหรือยัง
+
+// ─── Main ─────────────────────────────────────────────────────────────────────
+export default function () {
+  const student = students[__VU % students.length];
+
+  // ── Step 1: Login (ทำครั้งเดียวตอน VU เริ่มต้น หรือถ้า token หาย) ─────────
+  if (!vuToken) {
+    group('1. Login', () => {
+      const res = http.post(
+        `${BASE_URL}/api/auth/login`,
+        JSON.stringify({ email: student.email, password: student.password }),
+        { headers: jsonHeaders(null) }
+      );
+
+      loginTime.add(res.timings.duration);
+      const ok = res.status === 200;
+      errorRate.add(!ok);
+
+      check(res, {
+        'login: status 200': (r) => r.status === 200,
+        'login: has token':  (r) => { try { return !!r.json('data.token'); } catch { return false; } },
+      });
+
+      if (ok) {
+        try { vuToken = res.json('data.token'); } catch {}
+      }
+    });
+
+    if (!vuToken) {
+      console.warn(`[VU ${__VU}] Login failed for ${student.email} — skipping`);
+      sleep(2);
+      return;
+    }
+  }
+
+  // ── Step 2 (removed): Enroll ทำผ่าน enroll-load-test.js แยกต่างหาก ─────────
+
+  // ── Step 3+4: Setup — Load course และ open lesson (ทำครั้งเดียวต่อ VU) ─────
+  if (!vuSetupDone) {
+    group('3. Load Course Learning Page', () => {
+      const res = http.get(
+        `${BASE_URL}/api/students/courses/${COURSE_ID}/learn`,
+        { headers: jsonHeaders(vuToken) }
+      );
+      courseLearningTime.add(res.timings.duration);
+      errorRate.add(res.status !== 200);
+      check(res, { 'course learn: status 200': (r) => r.status === 200 });
+    });
+
+    sleep(1);
+
+    let videoUrl = null;
+    group('4. Open Lesson', () => {
+      const res = http.get(
+        `${BASE_URL}/api/students/courses/${COURSE_ID}/lessons/${LESSON_ID}`,
+        { headers: jsonHeaders(vuToken) }
+      );
+      lessonLoadTime.add(res.timings.duration);
+      errorRate.add(res.status !== 200);
+      check(res, { 'lesson: status 200': (r) => r.status === 200 });
+      if (res.status === 200) {
+        try { videoUrl = res.json('data.video_url'); } catch {}
+      }
+    });
+
+    // ── Step 4.5: Fetch video จาก MinIO ──────────────────────────────────────
+    if (videoUrl) {
+      group('4.5 Fetch Video from MinIO', () => {
+        const res = http.get(videoUrl, {
+          headers: { 'Range': 'bytes=0-1048575' }, // ขอแค่ 1MB แรก
+          timeout: '10s',
+        });
+        videoLoadTime.add(res.timings.duration);
+        const ok = res.status === 200 || res.status === 206;
+        errorRate.add(!ok);
+        check(res, {
+          'minio video: 200 or 206': (r) => r.status === 200 || r.status === 206,
+          'minio video: fast':       (r) => r.timings.duration < 3000,
+        });
+      });
+    } else {
+      console.log(`[VU ${__VU}] No video_url returned — skipping MinIO fetch`);
+    }
+
+    sleep(2); // รอ buffer เริ่มต้น
+    vuSetupDone = true;
+  }
+
+  // ── Step 5: Save Progress ทีละ tick (ต่อจากตำแหน่งเดิม) ────────────────────
+  // แต่ละ iteration ของ VU = ส่ง progress 1 ครั้ง แล้ว sleep ตาม interval จริง
+  if (!vuCompleted) {
+    vuProgress += PROGRESS_INTERVAL_SECONDS;
+
+    group('5. Watch Video (Save Progress)', () => {
+      const res = http.post(
+        `${BASE_URL}/api/students/lessons/${LESSON_ID}/progress`,
+        JSON.stringify({
+          video_progress_seconds: vuProgress,
+          video_duration_seconds: VIDEO_DURATION_SECONDS,
+        }),
+        { headers: jsonHeaders(vuToken) }
+      );
+
+      progressSaveTime.add(res.timings.duration);
+      progressSaveCount.add(1);
+
+      const ok = res.status === 200;
+      errorRate.add(!ok);
+      check(res, {
+        'progress save: status 200': (r) => r.status === 200,
+        'progress save: fast':       (r) => r.timings.duration < 500,
+      });
+
+      console.log(`[VU ${__VU}] progress: ${vuProgress}s / ${VIDEO_DURATION_SECONDS}s (${Math.round(vuProgress / VIDEO_DURATION_SECONDS * 100)}%)`);
+    });
+
+    // ── Step 6: Mark complete เมื่อดูครบ ≥95% ──────────────────────────────
+    if (vuProgress >= VIDEO_DURATION_SECONDS * 0.95) {
+      group('6. Complete Lesson', () => {
+        const res = http.post(
+          `${BASE_URL}/api/students/courses/${COURSE_ID}/lessons/${LESSON_ID}/complete`,
+          null,
+          { headers: jsonHeaders(vuToken) }
+        );
+        completeLessonTime.add(res.timings.duration);
+        errorRate.add(res.status !== 200 && res.status !== 409);
+        if (res.status === 200) completedCount.add(1);
+        check(res, {
+          'complete: status 200 or 409': (r) => r.status === 200 || r.status === 409,
+        });
+      });
+
+      vuCompleted = true;
+      console.log(`[VU ${__VU}] ✓ Lesson completed`);
+    }
+  }
+
+  // sleep ตาม interval จริง — ทุก VU ส่ง progress ทุก PROGRESS_INTERVAL_SECONDS วินาที
+  sleep(PROGRESS_INTERVAL_SECONDS);
+}
+
+// ─── Summary ──────────────────────────────────────────────────────────────────
+export function handleSummary(data) {
+  const m = data.metrics;
+
+  const avg    = (k) => m[k]?.values?.avg?.toFixed(0)  ?? 'N/A';
+  const p95    = (k) => m[k]?.values?.['p(95)']?.toFixed(0) ?? 'N/A';
+  const rate   = (k) => ((m[k]?.values?.rate ?? 0) * 100).toFixed(2);
+  const count  = (k) => m[k]?.values?.count ?? 0;
+
+  return {
+    stdout: `
+╔══════════════════════════════════════════════════════════╗
+║          Concurrent Video Watching — Load Test           ║
+╠══════════════════════════════════════════════════════════╣
+║  Course ID : ${COURSE_ID.padEnd(44)}║
+║  Lesson ID : ${LESSON_ID.padEnd(44)}║
+║  Video     : ${String(VIDEO_DURATION_SECONDS + 's').padEnd(44)}║
+╠══════════════════════════════════════════════════════════╣
+║  RESPONSE TIMES (avg / p95)                              ║
+║  Login               : ${avg('login_duration')}ms / ${p95('login_duration')}ms${' '.repeat(Math.max(0, 20 - avg('login_duration').length - p95('login_duration').length))}║
+║  Course Learning Page: ${avg('course_learning_duration')}ms / ${p95('course_learning_duration')}ms${' '.repeat(Math.max(0, 20 - avg('course_learning_duration').length - p95('course_learning_duration').length))}║
+║  Lesson Load         : ${avg('lesson_load_duration')}ms / ${p95('lesson_load_duration')}ms${' '.repeat(Math.max(0, 20 - avg('lesson_load_duration').length - p95('lesson_load_duration').length))}║
+║  MinIO Video Fetch   : ${avg('video_load_duration')}ms / ${p95('video_load_duration')}ms${' '.repeat(Math.max(0, 20 - avg('video_load_duration').length - p95('video_load_duration').length))}║
+║  Save Progress       : ${avg('progress_save_duration')}ms / ${p95('progress_save_duration')}ms${' '.repeat(Math.max(0, 20 - avg('progress_save_duration').length - p95('progress_save_duration').length))}║
+║  Complete Lesson     : ${avg('complete_lesson_duration')}ms / ${p95('complete_lesson_duration')}ms${' '.repeat(Math.max(0, 20 - avg('complete_lesson_duration').length - p95('complete_lesson_duration').length))}║
+╠══════════════════════════════════════════════════════════╣
+║  COUNTS                                                  ║
+║  Total Requests      : ${String(count('http_reqs')).padEnd(33)}║
+║  Progress Saves      : ${String(count('progress_saves')).padEnd(33)}║
+║  Lessons Completed   : ${String(count('completed_lessons')).padEnd(33)}║
+╠══════════════════════════════════════════════════════════╣
+║  ERROR RATES                                             ║
+║  HTTP Failed         : ${(rate('http_req_failed') + '%').padEnd(33)}║
+║  Custom Errors       : ${(rate('errors') + '%').padEnd(33)}║
+╚══════════════════════════════════════════════════════════╝
+`,
+  };
+}

Frontend-Learner/app.vue

@@ -1,20 +1,27 @@
-<script setup>
-// ดึงฟังก์ชันจัดการ Authentication
-const { fetchUserProfile, isAuthenticated } = useAuth()
+<script setup lang="ts">
+/**
+ * @file app.vue
+ * @description Root application component.
+ * Handles initialization of authentication and theme settings.
+ */
 
-// เมื่อ App เริ่มทำงาน (Mounted)
+// Initialize composables
+const { fetchUserProfile, isAuthenticated } = useAuth()
+const { isDark, set: setTheme } = useThemeMode()
+
+// App initialization logic
 onMounted(() => {
-  // 1. หากผู้ใช้ Login ค้างไว้ (มี Token) ให้ดึงข้อมูล Profile ล่าสุดทันที
+  // 1. Fetch user profile if tokens exist
   if (isAuthenticated.value) {
     fetchUserProfile()
   }
 
-  // 2. ตรวจสอบและคืนค่า Theme (Dark/Light) จาก LocalStorage
+  // 2. Initialize theme from persistent storage or system preference
   const savedTheme = localStorage.getItem('theme')
-  if (savedTheme === 'dark' || (!savedTheme && window.matchMedia('(prefers-color-scheme: dark)').matches)) {
-    document.documentElement.classList.add('dark')
-  } else {
-    document.documentElement.classList.remove('dark')
+  if (savedTheme) {
+    setTheme(savedTheme === 'dark')
+  } else if (window.matchMedia('(prefers-color-scheme: dark)').matches) {
+    setTheme(true)
   }
 })
 </script>

Frontend-Learner/components/classroom/CurriculumSidebar.vue

@@ -21,15 +21,40 @@ const emit = defineEmits<{
 
 const { locale } = useI18n()
 
+// State for expansion items
+const chapterOpenState = ref<Record<string, boolean>>({})
+
 // Helper for localization
 const getLocalizedText = (text: any) => {
   if (!text) return ''
   if (typeof text === 'string') return text
   
-  const currentLocale = locale.value as 'th' | 'en'
+  // Safe locale access
+  const currentLocale = (locale?.value || 'th') as 'th' | 'en'
   return text[currentLocale] || text.th || text.en || ''
 }
 
+// Helper: Check if lesson is completed
+const isLessonCompleted = (lesson: any) => {
+    return lesson.is_completed === true || lesson.progress?.is_completed === true
+}
+
+// Reactive Chapter Completion Status
+// Computes a map of chapterId -> boolean (true if all lessons are completed)
+const chapterCompletionStatus = computed(() => {
+    const status: Record<string, boolean> = {}
+    if (!props.courseData || !props.courseData.chapters) return status
+    
+    props.courseData.chapters.forEach((chapter: any) => {
+        if (chapter.lessons && chapter.lessons.length > 0) {
+            status[chapter.id] = chapter.lessons.every((l: any) => isLessonCompleted(l))
+        } else {
+            status[chapter.id] = false
+        }
+    })
+    return status
+})
+
 // Local Progress Calculation
 const progressPercentage = computed(() => {
   if (!props.courseData || !props.courseData.chapters) return 0
@@ -38,11 +63,34 @@ const progressPercentage = computed(() => {
   props.courseData.chapters.forEach((c: any) => {
     c.lessons.forEach((l: any) => {
       total++
-      if (l.is_completed || l.progress?.is_completed) completed++
+      if (isLessonCompleted(l)) completed++
     })
   })
   return total > 0 ? Math.round((completed / total) * 100) : 0
 })
+
+// Auto-expand chapter containing current lesson
+watch(() => props.currentLessonId, (newId) => {
+    if (newId && props.courseData?.chapters) {
+        props.courseData.chapters.forEach((chapter: any) => {
+            const hasLesson = chapter.lessons.some((l: any) => l.id === newId)
+            if (hasLesson) {
+                chapterOpenState.value[chapter.id] = true
+            }
+        })
+    }
+}, { immediate: true })
+
+// Initialize all chapters as open by default on load
+watch(() => props.courseData, (newData) => {
+    if (newData?.chapters) {
+        newData.chapters.forEach((chapter: any) => {
+            if (chapterOpenState.value[chapter.id] === undefined) {
+                chapterOpenState.value[chapter.id] = true
+            }
+        })
+    }
+}, { immediate: true })
 </script>
 
 <template>
@@ -51,71 +99,111 @@ const progressPercentage = computed(() => {
       @update:model-value="(val) => emit('update:modelValue', val)"
       show-if-above
       bordered
-      side="left"
-      :width="280"
+      side="right"
+      :width="300"
       :breakpoint="1024"
       class="bg-slate-50 dark:bg-slate-900 shadow-xl"
-      content-class="flex flex-col h-full"
     >
-      <div v-if="courseData" class="flex flex-col h-full overflow-hidden">
-        <!-- Course Progress Header -->
-        <div class="p-5 border-b border-gray-200 dark:border-white/10 bg-slate-50/50 dark:bg-slate-900/50">
-          <div class="flex justify-between items-center mb-2">
+      <!-- Main Container: Enforce Column Layout and Full Width -->
+      <div v-if="courseData" class="flex flex-col w-full h-full overflow-hidden text-slate-900 dark:text-white relative">
+        
+        <!-- 1. Header Section (Fixed at Top) -->
+        <div class="flex-none p-5 border-b border-slate-200 dark:border-white/10 bg-white dark:bg-slate-900 z-10 w-full">
+           <h2 class="text-sm font-bold mb-4 line-clamp-2 leading-snug block w-full">{{ getLocalizedText(courseData.course.title) }}</h2>
+           
+           <div class="flex justify-between items-center mb-2 w-full">
             <span class="text-xs font-black uppercase tracking-widest text-slate-500 dark:text-slate-400">{{ $t('course.progress') }}</span>
             <span class="text-sm font-black text-blue-600 dark:text-blue-400">{{ progressPercentage }}%</span>
           </div>
-          <div class="h-2 w-full bg-slate-200 dark:bg-slate-800 rounded-full overflow-hidden shadow-inner">
+          <div class="h-2 w-full bg-slate-100 dark:bg-slate-800 rounded-full overflow-hidden">
             <div 
-              class="h-full bg-blue-600 dark:bg-blue-500 rounded-full transition-all duration-700 ease-out shadow-[0_0_12px_rgba(37,99,235,0.3)]" 
+              class="h-full bg-blue-600 dark:bg-blue-500 rounded-full transition-all duration-700 ease-out" 
               :style="{ width: `${progressPercentage}%` }"
             ></div>
           </div>
         </div>
 
-         <div class="flex-grow scroll">
-            <q-list padding class="py-2">
+        <!-- 2. Curriculum List (Scrollable Area) -->
+         <div class="flex-1 overflow-y-auto bg-slate-50 dark:bg-[#0f1219] w-full p-4 space-y-3">
+             <q-list class="block w-full">
+                <div v-for="(chapter, idx) in courseData.chapters" :key="chapter.id" class="block w-full mb-3">
+                    <!-- Chapter Accordion -->
+                    <q-expansion-item
+                        v-model="chapterOpenState[chapter.id]"
+                        class="bg-white dark:bg-[#1a1e29] rounded-xl overflow-hidden shadow-sm border border-slate-200 dark:border-slate-800 w-full"
+                        header-class="rounded-t-xl w-full"
+                        expand-icon-class="text-slate-400"
+                    >
+                        <template v-slot:header>
+                            <div class="flex items-center w-full py-3 text-slate-900 dark:text-white">
+                                <div class="mr-3 flex-shrink-0">
+                                    <!-- Chapter Indicator (Check or Number) -->
+                                    <div class="w-7 h-7 rounded-full border-2 flex items-center justify-center transition-colors font-bold"
+                                         :class="chapterCompletionStatus[chapter.id]
+                                            ? 'border-green-500 text-green-500 bg-green-50 dark:bg-green-500/10' 
+                                            : 'border-slate-300 dark:border-slate-600 text-slate-500 dark:text-slate-400 bg-slate-100 dark:bg-slate-800'">
+                                        <q-icon v-if="chapterCompletionStatus[chapter.id]" name="check" size="14px" class="font-bold" />
+                                        <span v-else class="text-[10px]">{{ Number(idx) + 1 }}</span>
+                                    </div>
+                                </div>
+                                <!-- Explicitly handle text overflow -->
+                                <div class="flex-1 min-w-0 pr-2 overflow-hidden">
+                                    <div class="font-bold text-sm leading-tight mb-0.5 truncate block w-full">{{ getLocalizedText(chapter.title) }}</div>
+                                    <div class="text-[10px] text-slate-500 dark:text-slate-400 font-normal truncate block w-full">
+                                        {{ chapter.lessons.length }} {{ $t('course.lessonsUnit') }}
+                                    </div>
+                                </div>
+                            </div>
+                        </template>
 
+                        <!-- Lessons List -->
+                        <div class="bg-slate-50 dark:bg-[#0f1219]/50 border-t border-slate-100 dark:border-slate-800 w-full">
+                            <div 
+                                v-for="(lesson, lIdx) in chapter.lessons" 
+                                :key="lesson.id"
+                                class="flex items-center px-4 py-3 cursor-pointer transition-all border-l-4 hover:bg-slate-100 dark:hover:bg-slate-800/50 w-full"
+                                :class="currentLessonId === lesson.id 
+                                    ? 'border-blue-600 bg-blue-50 dark:bg-blue-900/10' 
+                                    : 'border-transparent'"
+                                @click="!lesson.is_locked && emit('select-lesson', lesson.id)"
+                            >
+                                <!-- Lesson Status Icon -->
+                                <div class="mr-3 flex-shrink-0">
+                                    <!-- Completed (Takes Precedence) -->
+                                    <q-icon v-if="isLessonCompleted(lesson)" 
+                                            name="check_circle" 
+                                            class="text-green-500" 
+                                            size="20px" 
+                                    />
+                                    <!-- Active/Playing (If not completed) -->
+                                    <q-icon v-else-if="currentLessonId === lesson.id" 
+                                            name="play_circle_filled" 
+                                            class="text-blue-600 dark:text-blue-400 animate-pulse" 
+                                            size="20px" 
+                                    />
+                                    <!-- Locked -->
+                                    <q-icon v-else-if="lesson.is_locked" 
+                                            name="lock" 
+                                            class="text-slate-400 opacity-70" 
+                                            size="18px" 
+                                    />
+                                    <!-- Not Started -->
+                                    <div v-else class="w-[18px] h-[18px] rounded-full border-2 border-slate-300 dark:border-slate-600"></div>
+                                </div>
 
-            <template v-for="chapter in courseData.chapters" :key="chapter.id">
-              <q-item-label header class="bg-slate-100 dark:bg-slate-800 text-[var(--text-main)] font-bold sticky top-0 z-10 border-b dark:border-white/5 text-sm py-4">
-                 {{ getLocalizedText(chapter.title) }}
-              </q-item-label>
+                                <div class="flex-1 min-w-0 overflow-hidden">
+                                    <div class="text-xs font-bold truncate leading-snug block w-full"
+                                        :class="currentLessonId === lesson.id ? 'text-blue-700 dark:text-blue-300' : 'text-slate-600 dark:text-slate-300'"
+                                    >
+                                        {{ getLocalizedText(lesson.title) }}
+                                    </div>
 
-              <q-item
-                v-for="lesson in chapter.lessons"
-                :key="lesson.id"
-                clickable
-                v-ripple
-                :active="currentLessonId === lesson.id"
-                active-class="bg-blue-50 text-blue-700 dark:bg-blue-900/30 dark:text-blue-300 active-lesson-indicator"
-                class="px-5 py-3 transition-all duration-200 group relative border-b border-gray-100/50 dark:border-white/5"
-                @click="!lesson.is_locked && emit('select-lesson', lesson.id)"
-                :disable="lesson.is_locked"
-              >
-                <q-item-section avatar v-if="lesson.is_locked">
-                  <q-icon name="lock" size="xs" color="grey" />
-                </q-item-section>
-                
-                <q-item-section>
-                  <q-item-label 
-                    class="text-sm font-bold line-clamp-2 transition-colors"
-                    :class="currentLessonId === lesson.id ? 'text-blue-700 dark:text-blue-300' : 'text-slate-700 dark:text-slate-300'"
-                  >
-                    {{ getLocalizedText(lesson.title) }}
-                  </q-item-label>
-                </q-item-section>
-
-                <q-item-section side>
-                   <div class="flex items-center">
-                     <q-icon v-if="lesson.is_completed || lesson.progress?.is_completed" name="check_circle" color="positive" size="18px" />
-                     <q-icon v-else-if="currentLessonId === lesson.id" name="play_arrow" color="primary" size="18px" class="animate-pulse" />
-                     <q-icon v-else-if="lesson.is_locked" name="lock" color="grey-4" size="18px" />
-                     <q-icon v-else name="radio_button_unchecked" color="grey-3" size="18px" />
-                   </div>
-                </q-item-section>
-              </q-item>
-            </template>
-         </q-list>
+                                </div>
+                            </div>
+                        </div>
+                    </q-expansion-item>
+                </div>
+             </q-list>
          </div>
       </div>
       <div v-else-if="isLoading" class="p-6 text-center text-slate-500">
@@ -126,31 +214,18 @@ const progressPercentage = computed(() => {
 </template>
 
 <style scoped>
-.active-lesson-indicator {
-  position: relative;
-}
-.active-lesson-indicator::before {
-  content: '';
-  position: absolute;
-  left: 0;
-  top: 0;
-  bottom: 0;
-  width: 4px;
-  background: #2563eb; /* blue-600 */
-  border-radius: 0 4px 4px 0;
-}
-
-.scroll::-webkit-scrollbar {
+/* Custom scrollbar for better aesthetics */
+::-webkit-scrollbar {
   width: 4px;
 }
-.scroll::-webkit-scrollbar-track {
+::-webkit-scrollbar-track {
   background: transparent;
 }
-.scroll::-webkit-scrollbar-thumb {
-  background: rgba(0, 0, 0, 0.05);
-  border-radius: 10px;
+::-webkit-scrollbar-thumb {
+  background: rgba(0, 0, 0, 0.1);
+  border-radius: 4px;
 }
-.dark .scroll::-webkit-scrollbar-thumb {
-  background: rgba(255, 255, 255, 0.05);
+.dark ::-webkit-scrollbar-thumb {
+  background: rgba(255, 255, 255, 0.1);
 }
 </style>

Frontend-Learner/components/course/CourseCard.vue

@@ -25,6 +25,8 @@ interface CourseCardProps {
   showContinue?: boolean
   showCertificate?: boolean
   showStudyAgain?: boolean
+  hideProgress?: boolean
+  hideActions?: boolean
 }
 
 const props = withDefaults(defineProps<CourseCardProps>(), {
@@ -55,7 +57,7 @@ const displayCategory = computed(() => getLocalizedText(props.category))
 </script>
 
 <template>
-  <div class="group relative flex flex-col bg-white dark:!bg-[#0f172a] rounded-3xl overflow-hidden border border-slate-200 dark:border-slate-800 shadow-sm hover:shadow-xl dark:shadow-none hover:-translate-y-1 transition-all duration-300 h-full">
+  <div class="group relative flex flex-col bg-white dark:!bg-slate-900 rounded-3xl overflow-hidden border border-slate-200 dark:border-white/5 shadow-sm hover:shadow-xl dark:shadow-none hover:-translate-y-1 transition-all duration-300 h-full">
     
     <!-- Thumbnail Section -->
     <div class="relative w-full aspect-video overflow-hidden">
@@ -106,7 +108,7 @@ const displayCategory = computed(() => getLocalizedText(props.category))
 
       <div class="mt-auto pt-4">
         <!-- Progress Bar -->
-        <div v-if="progress !== undefined && !completed" class="mb-4">
+        <div v-if="progress !== undefined && !completed && !hideProgress" class="mb-4">
           <div class="flex justify-between text-[10px] font-bold uppercase mb-1">
             <span class="text-slate-500 dark:text-slate-400">{{ $t('course.progress') }}</span>
             <span class="text-blue-600 dark:text-blue-400">{{ progress }}%</span>
@@ -117,25 +119,27 @@ const displayCategory = computed(() => getLocalizedText(props.category))
         </div>
 
         <!-- Action Buttons -->
-        <!-- View Details (Secondary Action) -->
-        <q-btn
-          v-if="showViewDetails && !completed && !progress"
-          flat
-          rounded
-          class="w-full font-bold !text-blue-600 !bg-blue-50 hover:!bg-blue-100 dark:!bg-blue-900/40 dark:!text-blue-300 dark:hover:!bg-blue-900/60"
-          :label="$t('menu.viewDetails')"
-          :to="`/course/${id}`"
-        />
+        <div v-if="!hideActions" class="flex flex-col gap-3">
+          <!-- View Details (Secondary Action) -->
+          <q-btn
+            v-if="showViewDetails && !completed && !progress"
+            flat
+            rounded
+            class="w-full font-bold !text-blue-600 !bg-blue-50 hover:!bg-blue-100 dark:!bg-blue-500/10 dark:!text-blue-400 dark:hover:!bg-blue-500/20"
+            :label="$t('menu.viewDetails')"
+            :to="`/course/${id}`"
+          />
 
-        <!-- Continue Learning (Primary Action) -->
-        <q-btn
-          v-if="showContinue || (progress && !completed) || (progress === 0 && !completed)"
-          unelevated
-          rounded
-          class="w-full font-bold !bg-blue-600 !text-white hover:!bg-blue-700 shadow-md shadow-blue-500/20 transition-all hover:scale-[1.02]"
-          :label="(!progress || progress === 0) ? $t('course.startLearning') : $t('course.continueLearning')"
-          :to="`/classroom/learning?course_id=${id}`"
-        />
+          <!-- Continue Learning (Primary Action) -->
+          <q-btn
+            v-if="showContinue || (progress && !completed) || (progress === 0 && !completed)"
+            unelevated
+            rounded
+            class="w-full font-bold !bg-blue-600 !text-white hover:!bg-blue-700 shadow-md shadow-blue-500/20 transition-all hover:scale-[1.02]"
+            :label="(!progress || progress === 0) ? $t('course.startLearning') : $t('course.continueLearning')"
+            :to="`/classroom/learning?course_id=${id}`"
+          />
+        </div>
 
         <div v-if="completed" class="space-y-2">
             <!-- Study Again -->

Frontend-Learner/components/discovery/CourseDetailView.vue

@@ -33,6 +33,19 @@ const formatPrice = (price: number) => {
 }
 
 const enrollmentLoading = ref(false);
+const activeTab = ref('curriculum');
+
+const totalLessons = computed(() => {
+    if (!props.course?.chapters) return 0;
+    return props.course.chapters.reduce((acc: number, chapter: any) => acc + (chapter.lessons?.length || 0), 0);
+});
+
+const totalDuration = computed(() => {
+    if (!props.course?.chapters) return 0;
+    return props.course.chapters.reduce((acc: number, chapter: any) => {
+        return acc + (chapter.lessons?.reduce((lAcc: number, lesson: any) => lAcc + (lesson.duration_minutes || 0), 0) || 0);
+    }, 0);
+});
 
 const handleEnroll = () => {
     if(!props.course) return;
@@ -42,7 +55,13 @@ const handleEnroll = () => {
     // In this pattern, we just emit.
     setTimeout(() => enrollmentLoading.value = false, 2000); // Safety timeout
 };
-
+const instructorData = computed(() => {
+    if (props.course?.instructors && props.course.instructors.length > 0) {
+        const primary = props.course.instructors.find((i: any) => i.is_primary);
+        return primary ? primary.user : props.course.instructors[0].user;
+    }
+    return props.course?.creator || null;
+});
 </script>
 
 <template>
@@ -104,45 +123,69 @@ const handleEnroll = () => {
                     </div>
                 </div>
 
-                <!-- Curriculum Preview -->
-                <div class="bg-slate-50 dark:bg-slate-900 rounded-3xl p-6 md:p-8 border border-slate-200 dark:border-white/5">
-                    <div class="flex items-center justify-between mb-8">
+                <!-- Course Detail - Single Page Layout -->
+                <div class="space-y-10">
+                    
+                    <!-- Instructor Info -->
+                    <div class="flex flex-col sm:flex-row gap-6 items-start sm:items-center pb-8 border-b border-slate-200 dark:border-slate-800">
+                        <q-avatar size="64px">
+                            <img :src="instructorData?.profile?.avatar_url || 'https://cdn.quasar.dev/img/boy-avatar.png'" />
+                        </q-avatar>
                         <div>
-                            <h3 class="text-xl font-black text-slate-900 dark:text-white mb-1 flex items-center gap-2">
+                            <div class="text-sm text-slate-500 mb-1 font-bold uppercase tracking-wider">{{ $t('course.instructor') }}</div>
+                            <div class="font-bold text-xl text-slate-800 dark:text-white">
+                                {{ instructorData?.profile?.first_name || 'Unknown' }} {{ instructorData?.profile?.last_name || 'Instructor' }}
+                            </div>
+                            <div class="text-slate-500 text-sm mt-1">{{ instructorData?.email || 'No contact info' }}</div>
+                        </div>
+                    </div>
+
+                    <!-- Curriculum / Lesson Details -->
+                    <div>
+                        <div class="flex items-center justify-between mb-6">
+                            <h3 class="text-xl font-bold text-slate-900 dark:text-white">
                                 {{ $t('course.courseContent') }}
                             </h3>
+                            <div class="text-sm font-bold text-slate-500 dark:text-slate-400 bg-slate-100 dark:bg-white/5 px-4 py-2 rounded-full">
+                                {{ totalLessons }} {{ $t('course.lessons') }} • {{ totalDuration }} {{ $t('quiz.minutes') }}
+                            </div>
                         </div>
-                        <q-icon name="keyboard_command_key" class="text-slate-200 dark:text-slate-800" size="32px" />
-                    </div>
-                    
-                    <div class="space-y-4">
-                        <div v-for="(chapter, idx) in course.chapters" :key="chapter.id" class="group">
-                             <div class="px-6 py-4 bg-white dark:bg-slate-800 rounded-2xl border border-slate-200 dark:border-white/5 font-black text-slate-800 dark:text-white flex justify-between items-center mb-2 shadow-sm">
-                                 <span class="flex items-center gap-3">
-                                     <span class="w-7 h-7 flex items-center justify-center bg-slate-100 dark:bg-white/10 rounded-lg text-xs font-bold font-mono">{{ Number(idx) + 1 }}</span>
-                                     {{ getLocalizedText(chapter.title) }}
-                                 </span>
-                                 <span class="text-[10px] uppercase font-black tracking-widest text-slate-400 opacity-60">{{ chapter.lessons?.length || 0 }} {{ $t('course.lessonsUnit') }}</span>
-                             </div>
-                             <div class="ml-4 pl-4 border-l-2 border-slate-100 dark:border-slate-800 space-y-1 mt-3">
-                                 <div v-for="lesson in chapter.lessons" :key="lesson.id" class="px-5 py-3 flex items-center gap-3 text-sm text-slate-600 dark:text-slate-400 hover:bg-white dark:hover:bg-white/5 rounded-xl transition-all hover:translate-x-1">
-                                     <div class="w-8 h-8 rounded-full flex items-center justify-center" :class="lesson.type === 'VIDEO' ? 'bg-blue-50 text-blue-600 dark:bg-blue-500/10 dark:text-blue-400' : 'bg-orange-50 text-orange-600 dark:bg-orange-500/10 dark:text-orange-400'">
-                                         <q-icon 
-                                            :name="lesson.type === 'VIDEO' ? 'play_arrow' : 'article'" 
-                                            size="16px"
-                                         />
-                                     </div>
-                                     <span class="flex-1 font-bold">{{ getLocalizedText(lesson.title) }}</span>
-                                     <span v-if="lesson.duration_minutes" class="text-slate-400 dark:text-slate-500 text-[10px] font-bold">{{ lesson.duration_minutes }} {{ $t('quiz.minutes') }}</span>
-                                     <q-icon v-if="lesson.is_locked !== false" name="lock" size="14px" class="text-slate-300 dark:text-slate-600" />
+                        
+                        <div class="space-y-4">
+                             <div v-for="(chapter, idx) in course.chapters" :key="chapter.id" class="group">
+                                 <!-- Chapter Header -->
+                                 <div class="px-6 py-4 bg-white dark:bg-slate-800 rounded-2xl border border-slate-200 dark:border-white/5 font-black text-slate-800 dark:text-white flex justify-between items-center mb-2 shadow-sm">
+                                     <span class="flex items-center gap-3">
+                                         <span class="w-7 h-7 flex items-center justify-center bg-slate-100 dark:bg-white/10 rounded-lg text-xs font-bold font-mono">{{ Number(idx) + 1 }}</span>
+                                         {{ getLocalizedText(chapter.title) }}
+                                     </span>
+                                     <span class="text-[10px] uppercase font-black tracking-widest text-slate-400 opacity-60">{{ chapter.lessons?.length || 0 }} {{ $t('course.lessonsUnit') }}</span>
                                  </div>
-                             </div>
-                        </div>
-                        <div v-if="!course.chapters || course.chapters.length === 0" class="flex flex-col items-center justify-center py-12 text-slate-400 dark:text-slate-500 bg-white/50 dark:bg-slate-900/50 rounded-2xl border-2 border-dashed border-slate-200 dark:border-slate-800">
-                             <q-icon name="menu_book" size="40px" class="mb-2 opacity-50" />
-                             <p class="text-sm font-medium">{{ $t('course.noContent') }}</p>
+                                 
+                                 <!-- Lessons List -->
+                                 <div class="ml-4 pl-4 border-l-2 border-slate-100 dark:border-slate-800 space-y-1 mt-3">
+                                     <div v-for="lesson in chapter.lessons" :key="lesson.id" class="px-5 py-3 flex items-center gap-3 text-sm text-slate-600 dark:text-slate-400 hover:bg-white dark:hover:bg-white/5 rounded-xl transition-all hover:translate-x-1">
+                                         <div class="w-8 h-8 rounded-full flex items-center justify-center shrink-0" :class="lesson.type === 'VIDEO' ? 'bg-blue-50 text-blue-600 dark:bg-blue-500/10 dark:text-blue-400' : 'bg-orange-50 text-orange-600 dark:bg-orange-500/10 dark:text-orange-400'">
+                                             <q-icon 
+                                                :name="lesson.type === 'VIDEO' ? 'play_arrow' : 'article'" 
+                                                size="16px"
+                                             />
+                                         </div>
+                                         <span class="flex-1 font-bold truncate">{{ getLocalizedText(lesson.title) }}</span>
+                                         <span v-if="lesson.duration_minutes" class="text-slate-400 dark:text-slate-500 text-[10px] font-bold shrink-0">{{ lesson.duration_minutes }} {{ $t('quiz.minutes') }}</span>
+                                         <q-icon v-if="lesson.is_locked !== false" name="lock" size="14px" class="text-slate-300 dark:text-slate-600 shrink-0" />
+                                     </div>
+                                 </div>
+                            </div>
+                            
+                            <!-- Empty State -->
+                            <div v-if="!course.chapters || course.chapters.length === 0" class="flex flex-col items-center justify-center py-12 text-slate-400 dark:text-slate-500 bg-white/50 dark:bg-slate-900/50 rounded-2xl border-2 border-dashed border-slate-200 dark:border-slate-800">
+                                 <q-icon name="menu_book" size="40px" class="mb-2 opacity-50" />
+                                 <p class="text-sm font-medium">{{ $t('course.noContent') }}</p>
+                            </div>
                         </div>
                     </div>
+
                 </div>
 
             </div>

Frontend-Learner/components/layout/AppHeader.vue

@@ -5,86 +5,164 @@
  * Uses Quasar QToolbar.
  */
 
-defineProps<{
-  /** Controls visibility of the search bar */
-  showSearch?: boolean
-}>()
+import { ref, computed } from "vue";
+
+const props = defineProps<{
+  /** Controls visibility of the sidebar toggle button */
+  showSidebarToggle?: boolean;
+  /** Type of navigation links to display */
+  navType?: "public" | "learner";
+}>();
 
 const emit = defineEmits<{
   /** Emitted when the hamburger menu is clicked */
-  toggleSidebar: []
-}>()
+  toggleSidebar: [];
+  /** Emitted when the mobile menu toggle is clicked */
+  toggleRightDrawer: [];
+}>();
+
+const { t } = useI18n();
+const route = useRoute();
+
+// Automatically determine navType based on route if not explicitly passed
+const navTypeComputed = computed(() => {
+  if (props.navType) return props.navType;
+  // Show learner nav for dashboard, browse, classroom, and course details
+  const learnerRoutes = ["/dashboard", "/browse", "/classroom", "/course"];
+  return learnerRoutes.some((r) => route.path.startsWith(r))
+    ? "learner"
+    : "public";
+});
+
 
-const searchText = ref('')
 </script>
 
 <template>
-  <q-toolbar class="bg-white text-slate-900 h-16 px-4 md:px-8">
-    <!-- Mobile Menu Toggle -->
-    <q-btn
-      flat
-      round
-      dense
-      icon="menu"
-      class="lg:hidden mr-2 text-gray-500"
-      @click="$emit('toggleSidebar')"
-    />
-
-    <!-- Branding -->
-    <div class="flex items-center gap-3 cursor-pointer group" @click="navigateTo('/dashboard')">
-      <div class="w-10 h-10 rounded-xl bg-blue-600 flex items-center justify-center text-white font-black shadow-lg shadow-blue-600/30 group-hover:scale-110 transition-transform">
-        E
-      </div>
-      <div class="flex flex-col">
-        <span class="font-black text-lg leading-none tracking-tight text-slate-900 group-hover:text-blue-600 transition-colors">E-Learning</span>
-        <span class="text-[10px] font-bold uppercase tracking-[0.2em] leading-none mt-1 text-slate-500">Platform</span>
-      </div>
-    </div>
-
-    <!-- Desktop Navigation -->
-    <nav class="hidden lg:flex items-center gap-6 text-sm font-medium text-gray-600">
-      <div class="cursor-pointer hover:text-purple-600 flex items-center gap-1 transition-colors">
-        คอร์สออนไลน์ <q-icon name="keyboard_arrow_down" />
-        <q-menu>
-             <q-list dense style="min-width: 150px">
-                <q-item clickable v-close-popup to="/browse">
-                   <q-item-section>ทั้งหมด</q-item-section>
-                </q-item>
-             </q-list>
-        </q-menu>
-      </div>
-      <div class="cursor-pointer hover:text-purple-600 flex items-center gap-1 transition-colors">
-        หลักสูตร Onsite <q-icon name="keyboard_arrow_down" />
-      </div>
-      <NuxtLink to="/browse/recommended" class="hover:text-purple-600 transition-colors">
-        คอร์สแนะนำ
-      </NuxtLink>
-      <div class="cursor-pointer hover:text-purple-600 transition-colors">บทความ</div>
-      <div class="cursor-pointer hover:text-purple-600 transition-colors">สมาชิกรายปี</div>
-      <div class="cursor-pointer hover:text-purple-600 transition-colors">สำหรับองค์กร</div>
-    </nav>
-    
-    <q-space />
-
-    <!-- Right Actions -->
-    <div class="flex items-center gap-2 sm:gap-4 text-gray-500">
-      <!-- Search Icon -->
-
-
-       <!-- Language -->
-      <LanguageSwitcher />
+  <q-toolbar class="bg-white dark:!bg-[#0f172a] text-slate-900 dark:!text-white h-16 border-none p-0 overflow-visible">
+    <div class="w-full px-4 md:px-12 flex items-center h-full no-wrap relative">
       
-      <!-- User Profile -->
-      <UserMenu />
+      <!-- Mobile Sidebar Toggle (For non-learner routes) -->
+      <q-btn
+        v-if="showSidebarToggle !== false && navTypeComputed !== 'learner' && $q.screen.lt.md"
+        flat
+        round
+        dense
+        icon="menu"
+        class="mr-2 text-gray-500"
+        @click="$emit('toggleSidebar')"
+      />
+
+      <!-- Branding: Logo + Name -->
+      <div
+        class="flex items-center gap-3 cursor-pointer group flex-shrink-0"
+        @click="navigateTo('/dashboard')"
+      >
+        <div class="w-10 h-10 rounded-xl bg-blue-600 flex items-center justify-center text-white font-black shadow-lg shadow-blue-600/30 group-hover:scale-110 transition-transform flex-shrink-0">
+          E
+        </div>
+        <div class="flex flex-col text-left">
+          <span class="font-black text-[15px] md:text-lg leading-none tracking-tight text-slate-900 dark:text-white group-hover:text-blue-600 transition-colors">E-Learning</span>
+          <span class="text-[9px] md:text-[10px] font-bold uppercase tracking-[0.2em] leading-none mt-1 text-slate-500">Platform</span>
+        </div>
+      </div>
+
+      <!-- Desktop Navigation -->
+      <nav class="header-desktop items-center gap-6 lg:gap-8 text-[14px] font-bold ml-12 flex-shrink-0 h-full">
+        <NuxtLink to="/dashboard" class="nav-link" exact-active-class="active">{{ $t("sidebar.overview") }}</NuxtLink>
+        <NuxtLink to="/browse/discovery" class="nav-link" active-class="active">{{ $t("landing.allCourses") }}</NuxtLink>
+        <NuxtLink to="/dashboard/my-courses" class="nav-link" exact-active-class="active">{{ $t("sidebar.myCourses") || 'คอร์สเรียนของฉัน' }}</NuxtLink>
+      </nav>
+
+      <q-space />
+
+      <!-- Right Section: Tools -->
+      <div class="flex items-center gap-2 flex-shrink-0 no-wrap">
+        
+        <!-- Desktop Only Tools -->
+        <div class="header-desktop items-center gap-4 flex-shrink-0">
+          <LanguageSwitcher />
+          <UserMenu />
+        </div>
+
+        <!-- Mobile/Tablet Tools Hidden (Moved to Drawer) -->
+        <!-- Just keep space between logo and hamburger -->
+
+        <!-- Mobile/Tablet Hamburger -->
+        <q-btn
+          flat
+          round
+          dense
+          icon="menu"
+          class="header-mobile text-slate-700 dark:text-white bg-slate-100 dark:bg-slate-800 flex-shrink-0"
+          style="width: 40px; height: 40px; min-width: 40px;"
+          @click="$emit('toggleRightDrawer')"
+        />
+      </div>
     </div>
   </q-toolbar>
 </template>
 
 <style scoped>
-.search-input :deep(.q-field__control) {
-  border-radius: 9999px; /* Full rounded */
+/* High Priority Visibility Logic */
+@media (max-width: 1023px) {
+  .header-desktop {
+    display: none !important;
+  }
+  .header-mobile {
+    display: flex !important;
+  }
 }
-.search-input :deep(.q-field__control:before) {
-  border-color: #e2e8f0; /* slate-200 */
+
+@media (min-width: 1024px) {
+  .header-mobile {
+    display: none !important;
+  }
+  .header-desktop {
+    display: flex !important;
+  }
+}
+
+.nav-link {
+  color: #64748b; /* slate-500 */
+  text-decoration: none;
+  transition: all 0.3s ease;
+  text-transform: uppercase;
+  letter-spacing: 0.05em;
+  white-space: nowrap;
+  position: relative;
+  height: 100%;
+  display: flex;
+  align-items: center;
+  padding: 0 4px;
+}
+
+.nav-link:hover {
+  color: #2563eb; /* blue-600 */
+}
+
+.nav-link.active {
+  color: #2563eb; /* blue-600 */
+}
+
+.nav-link::after {
+  content: '';
+  position: absolute;
+  bottom: 0;
+  left: 50%;
+  width: 0;
+  height: 3px;
+  background-color: #2563eb;
+  border-top-left-radius: 4px;
+  border-top-right-radius: 4px;
+  transition: all 0.3s ease;
+  transform: translateX(-50%);
+}
+
+.nav-link.active::after {
+  width: 100%;
+}
+
+.router-link-active {
+  color: #2563eb !important;
 }
 </style>

Frontend-Learner/components/layout/LandingFooter.vue

@@ -1,7 +1,7 @@
 <script setup lang="ts">
 /**
  * @file LandingFooter.vue
- * @description Footer component for the landing page
+ * @description Footer component for the landing page - Adjusted to Image 2 (E-Learning Platform Branding)
  */
 </script>
 
@@ -23,17 +23,6 @@
           <p class="text-slate-500 text-sm leading-relaxed max-w-xs">
             แพลตฟอร์มการเรียนรู้ออนไลน์ที่มุ่งเน้นการพัฒนาทักษะดิจิทัลสำหรับคนรุ่นใหม่ เรียนรู้ได้ทุกที่ ทุกเวลา กับผู้เชี่ยวชาญตัวจริง
           </p>
-          <div class="flex gap-3">
-            <a href="#" class="w-9 h-9 rounded-full bg-white border border-slate-200 flex items-center justify-center text-slate-400 hover:bg-blue-600 hover:text-white hover:border-blue-600 transition-all">
-              <q-icon name="facebook" size="18px" />
-            </a>
-            <a href="#" class="w-9 h-9 rounded-full bg-white border border-slate-200 flex items-center justify-center text-slate-400 hover:bg-sky-400 hover:text-white hover:border-sky-400 transition-all">
-              <q-icon name="flutter_dash" size="18px" />
-            </a>
-            <a href="#" class="w-9 h-9 rounded-full bg-white border border-slate-200 flex items-center justify-center text-slate-400 hover:bg-pink-600 hover:text-white hover:border-pink-600 transition-all">
-              <q-icon name="camera_alt" size="18px" />
-            </a>
-          </div>
         </div>
 
         <!-- Links -->
@@ -58,40 +47,51 @@
           </ul>
         </div>
 
-        <!-- Contact -->
-        <div>
-          <h4 class="font-bold text-slate-900 mb-6 text-base">ติดต่อเรา</h4>
-          <ul class="space-y-4 text-sm text-slate-500">
-            <li class="flex items-start gap-3">
-              <div class="w-8 h-8 rounded-lg bg-blue-50 flex items-center justify-center shrink-0 text-blue-600 mt-[-2px]">
-                 <q-icon name="location_on" size="18px" />
+        <!-- Contact (Bronco Hourse Data) -->
+        <div class="space-y-6">
+          <h4 class="font-bold text-slate-900 text-base">ติดต่อเรา</h4>
+          <div class="flex flex-col gap-5">
+            <!-- Location -->
+            <div class="flex flex-row items-start gap-4 flex-nowrap">
+              <div class="w-10 h-10 rounded-xl bg-blue-50 flex items-center justify-center shrink-0 text-blue-600 shadow-sm">
+                 <q-icon name="location_on" size="20px" />
               </div>
-              <span class="leading-relaxed">123 อาคารสยามทาวเวอร์ ชั้น 15 เขตปทุมวัน กรุงเทพฯ 10330</span>
-            </li>
-            <li class="flex items-center gap-3">
-              <div class="w-8 h-8 rounded-lg bg-blue-50 flex items-center justify-center shrink-0 text-blue-600">
+              <div class="flex flex-col gap-1 min-w-0">
+                <span class="font-bold text-slate-900 text-sm leading-tight pt-1">Bronco Hourse</span>
+                <p class="text-slate-500 text-[11px] leading-relaxed">
+                  74/2 Wiang Kaew Road, Tambon Si Phum, Amphoe Mueang Chiang Mai, Chang Wat Chiang Mai 50200
+                </p>
+              </div>
+            </div>
+
+            <!-- Phone -->
+            <div class="flex flex-row items-center gap-4 flex-nowrap">
+              <div class="w-10 h-10 rounded-xl bg-blue-50 flex items-center justify-center shrink-0 text-blue-600 shadow-sm">
                  <q-icon name="phone" size="18px" />
               </div>
-              <span>02-123-4567</span>
-            </li>
-            <li class="flex items-center gap-3">
-              <div class="w-8 h-8 rounded-lg bg-blue-50 flex items-center justify-center shrink-0 text-blue-600">
+              <a href="tel:052-076-025" class="text-slate-600 hover:text-blue-600 font-semibold text-sm transition-colors truncate">
+                052-076-025
+              </a>
+            </div>
+
+            <!-- Email -->
+            <div class="flex flex-row items-center gap-4 flex-nowrap">
+              <div class="w-10 h-10 rounded-xl bg-blue-50 flex items-center justify-center shrink-0 text-blue-600 shadow-sm">
                  <q-icon name="email" size="18px" />
               </div>
-              <span>support@elearning.com</span>
-            </li>
-          </ul>
+              <a href="mailto:info@chamomind.com" class="text-slate-600 hover:text-blue-600 font-semibold text-sm transition-colors truncate">
+                info@chamomind.com
+              </a>
+            </div>
+          </div>
         </div>
       </div>
 
-      <div class="pt-8 border-t border-slate-200 flex flex-col md:flex-row justify-between items-center gap-4">
-        <p class="text-sm text-slate-500 text-center md:text-left">
-          © {{ new Date().getFullYear() }} E-Learning Platform. All rights reserved.
+      <!-- Bottom Bar (Centered Copyright) -->
+      <div class="pt-8 border-t border-slate-200 text-center">
+        <p class="text-sm text-slate-400 font-medium tracking-wide">
+          Copyright © CHAMOMIND CO., LTD. 2023
         </p>
-        <div class="flex gap-6 text-sm font-medium text-slate-500">
-          <a href="#" class="hover:text-blue-600 transition-colors">Privacy Policy</a>
-          <a href="#" class="hover:text-blue-600 transition-colors">Terms of Service</a>
-        </div>
       </div>
     </div>
   </footer>

Frontend-Learner/components/profile/PasswordChangeForm.vue

@@ -7,6 +7,7 @@
 const props = defineProps<{
   modelValue: any; // passwordForm (currentPassword, newPassword, confirmPassword)
   loading: boolean;
+  flat?: boolean;
 }>();
 
 const emit = defineEmits<{
@@ -33,11 +34,15 @@ const showConfirmPassword = ref(false);
 </script>
 
 <template>
-    <div class="card-premium p-8 h-fit">
-        <h2 class="text-xl font-bold flex items-center gap-3 text-slate-900 dark:text-white mb-6">
-        <q-icon name="lock" class="text-amber-500 text-2xl" />
-        {{ $t('profile.security') }}
-        </h2>
+    <div :class="[!flat ? 'card-premium p-6 md:p-8' : '']" class="h-fit">
+        <div v-if="!flat" class="flex items-center gap-3 mb-8">
+            <div class="w-10 h-10 rounded-xl bg-blue-50 dark:bg-blue-900/30 flex items-center justify-center">
+                <q-icon name="lock" class="text-blue-600 dark:text-blue-400 text-xl" />
+            </div>
+            <h2 class="text-xl font-black text-slate-900 dark:text-white">
+                {{ $t('profile.security') }}
+            </h2>
+        </div>
         
         <q-form @submit="emit('submit')" class="flex flex-col gap-6">
             <div class="text-sm text-slate-500 dark:text-slate-400 mb-2">
@@ -113,8 +118,8 @@ const showConfirmPassword = ref(false);
             type="submit"
                 unelevated
                 rounded
-                class="w-full py-3 font-bold text-base shadow-lg shadow-amber-500/20"
-                style="background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%); color: white;"
+                class="w-full py-3 font-bold text-base shadow-lg shadow-blue-500/20"
+                style="background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%); color: white;"
                 :label="$t('profile.changePasswordBtn')"
                 :loading="loading"
             />

Frontend-Learner/components/profile/ProfileEditForm.vue

@@ -8,6 +8,7 @@ const props = defineProps<{
     modelValue: any; // userData (firstName, lastName, phone, etc.)
     loading: boolean;
     verifying?: boolean;
+    flat?: boolean;
 }>();
 
 const emit = defineEmits<{
@@ -67,11 +68,15 @@ const onPhoneKeydown = (e: KeyboardEvent) => {
 </script>
 
 <template>
-    <div class="card-premium p-8 h-fit">
-        <h2 class="text-xl font-bold flex items-center gap-3 text-slate-900 dark:text-white mb-6">
-            <q-icon name="person" class="text-blue-500 text-2xl" />
-            {{ $t('profile.editPersonalDesc') }}
-        </h2>
+    <div :class="[!flat ? 'card-premium p-6 md:p-8' : '']" class="h-fit">
+        <div v-if="!flat" class="flex items-center gap-3 mb-8">
+            <div class="w-10 h-10 rounded-xl bg-blue-50 dark:bg-blue-900/30 flex items-center justify-center">
+                <q-icon name="person" class="text-blue-600 dark:text-blue-400 text-xl" />
+            </div>
+            <h2 class="text-xl font-black text-slate-900 dark:text-white">
+                {{ $t('profile.editPersonalDesc') }}
+            </h2>
+        </div>
 
         <div class="flex flex-col gap-6">
         

Frontend-Learner/composables/useAuth.ts

@@ -1,45 +1,4 @@
-
-// Interface สำหรับข้อมูลผู้ใช้งาน (User)
-interface User {
-  id: number
-  username: string
-  email: string
-  email_verified_at?: string | null
-  created_at?: string
-  updated_at?: string
-  role: {
-    code: string // เช่น 'STUDENT', 'INSTRUCTOR', 'ADMIN'
-    name: { th: string; en: string }
-  }
-  profile?: {
-    prefix: { th: string; en: string }
-    first_name: string
-    last_name: string
-    phone: string | null
-    avatar_url: string | null
-  }
-}
-
-
-
-// Interface สำหรับข้อมูลตอบกลับตอน Login
-interface loginResponse {
-  token: string
-  refreshToken: string
-  user: User
-  profile: User['profile']
-}
-
-// Interface สำหรับข้อมูลที่ใช้ลงทะเบียน
-interface RegisterPayload {
-  username: string
-  email: string
-  password: string
-  first_name: string
-  last_name: string
-  prefix: { th: string; en: string }
-  phone: string
-}
+import type { User, LoginResponse, RegisterPayload } from '@/types/auth'
 
 // ==========================================
 // Composable: useAuth

Frontend-Learner/composables/useCourse.ts

@@ -1,125 +1,14 @@
-// Interface สำหรับข้อมูลคอร์สเรียน (Public Course Data)
-export interface Course {
-  id: number
-  title: string | { th: string; en: string } // รองรับ 2 ภาษา
-  slug: string
-  description: string | { th: string; en: string }
-  thumbnail_url: string
-  price: string
-  is_free: boolean
-  original_price?: string
-  have_certificate: boolean
-  status: string // DRAFT, PUBLISHED
-  category_id: number
-  created_at?: string
-  updated_at?: string
-  created_by?: number
-  updated_by?: number
-  approved_at?: string
-  approved_by?: number
-  rejection_reason?: string
-  enrolled?: boolean
-  total_lessons?: number
-  
-
-  rating?: string
-  lessons?: number | string
-  levelType?: 'neutral' | 'warning' | 'success' // ใช้สำหรับการแสดงผล Badge ระดับความยาก (Frontend Logic)
-  
-  // โครงสร้างบทเรียน (Chapters & Lessons)
-  chapters?: {
-    id: number
-    title: string | { th: string; en: string }
-    lessons: {
-      id: number
-      title: string | { th: string; en: string }
-      duration_minutes: number
-      video_url?: string
-    }[]
-  }[]
-}
-
-interface CourseResponse {
-  code: number
-  message: string
-  data: Course[]
-  total: number
-  page?: number
-  limit?: number
-  totalPages?: number
-}
-
-interface SingleCourseResponse {
-  code: number
-  message: string
-  data: Course
-}
-
-// Interface สำหรับคอร์สที่ผู้ใช้ลงทะเบียนเรียนแล้ว (My Course)
-export interface EnrolledCourse {
-    id: number
-    course_id: number
-    course: Course
-    status: 'ENROLLED' | 'IN_PROGRESS' | 'COMPLETED' | 'DROPPED'
-    progress_percentage: number
-    enrolled_at: string
-    started_at?: string
-    completed_at?: string
-    last_accessed_at?: string
-}
-
-interface EnrolledCourseResponse {
-    code: number
-    message: string
-    data: EnrolledCourse[]
-    total: number
-    page: number
-    limit: number
-}
-
-// Interface สำหรับการส่งคำตอบแบบทดสอบ (Quiz Submission)
-export interface QuizAnswerSubmission {
-    question_id: number
-    choice_id: number
-}
-
-export interface QuizSubmitRequest {
-    answers: QuizAnswerSubmission[]
-}
-
-// Interface สำหรับผลลัพธ์การสอบ (Quiz Result)
-export interface QuizResult {
-    answers_review: {
-        score: number
-        is_correct: boolean
-        correct_choice_id: number
-        selected_choice_id: number
-        question_id: number
-    }[]
-    completed_at: string
-    started_at: string
-    attempt_number: number
-    passing_score: number
-    is_passed: boolean
-    correct_answers: number
-    total_questions: number
-    total_score: number
-    score: number
-    quiz_id: number
-    attempt_id: number
-}
-
-// Interface สำหรับ Certificate
-export interface Certificate {
-    certificate_id: number
-    course_id: number
-    course_title: {
-        en: string
-        th: string
-    }
-    issued_at: string
-    download_url: string
-}
+import type { 
+    Course, 
+    CourseResponse, 
+    SingleCourseResponse, 
+    EnrolledCourse, 
+    EnrolledCourseResponse, 
+    QuizAnswerSubmission, 
+    QuizSubmitRequest, 
+    QuizResult, 
+    Certificate 
+} from '@/types/course'
 
 // ==========================================
 // Composable: useCourse
@@ -145,6 +34,7 @@ export const useCourse = () => {
         category_id?: number; 
         page?: number; 
         limit?: number; 
+        search?: string;
         random?: boolean; 
         is_recommended?: boolean; 
         forceRefresh?: boolean 
@@ -167,6 +57,7 @@ export const useCourse = () => {
             if (apiParams.category_id) queryParams.append('category_id', apiParams.category_id.toString())
             if (apiParams.page) queryParams.append('page', apiParams.page.toString())
             if (apiParams.limit) queryParams.append('limit', apiParams.limit.toString())
+            if (apiParams.search) queryParams.append('search', apiParams.search)
             if (apiParams.random !== undefined) queryParams.append('random', apiParams.random.toString())
             if (apiParams.is_recommended !== undefined) queryParams.append('is_recommended', apiParams.is_recommended.toString())
 

Frontend-Learner/constants/landing.ts

@@ -0,0 +1,55 @@
+/**
+ * @file landing.ts
+ * @description Static data for the landing page.
+ */
+
+export const CATEGORY_CARDS = [
+  { 
+    title: 'โปรแกรมมิ่ง', 
+    desc: 'เชี่ยวชาญการเขียนโค้ดและพัฒนาซอฟต์แวร์', 
+    icon: 'code', 
+    slug: 'programming',
+    iconColor: 'text-blue-600',
+    iconBg: 'bg-blue-600/5'
+  },
+  { 
+    title: 'การออกแบบ', 
+    desc: 'ทักษะ UI/UX และการออกแบบระดับมือโปร', 
+    icon: 'palette', 
+    slug: 'design',
+    iconColor: 'text-indigo-600',
+    iconBg: 'bg-indigo-600/5'
+  },
+  { 
+    title: 'ธุรกิจ', 
+    desc: 'ทักษะการจัดการและความเป็นผู้นำสากล', 
+    icon: 'business_center', 
+    slug: 'business',
+    iconColor: 'text-blue-700',
+    iconBg: 'bg-blue-700/5'
+  }
+]
+
+export const WHY_CHOOSE_US = [
+  {
+    title: 'ผู้สอนเชี่ยวชาญ',
+    desc: 'เรียนรู้จากผู้นำในอุตสาหกรรมที่มีประสบการณ์การทำงานหลายปีในบริษัทเทคโนโลยีชั้นนำระดับโลก',
+    icon: 'groups',
+    iconBg: 'bg-blue-600/10',
+    iconColor: 'text-blue-600'
+  },
+  {
+    title: 'การเรียนรู้ที่ยืดหยุ่น',
+    desc: 'เรียนตามจังหวะของคุณเอง ได้ทุกที่ทุกเวลา เข้าถึงเนื้อหาคอร์สที่สมัครเรียนได้ตลอดชีพ',
+    icon: 'schedule',
+    iconBg: 'bg-indigo-600/10',
+    iconColor: 'text-indigo-600'
+  },
+  {
+    title: 'ประกาศนียบัตรเมื่อเรียนจบ',
+    desc: 'รับวุฒิบัตรที่เป็นที่ยอมรับเพื่อเสริมพอร์ตโฟลิโอระดับมืออาชีพของคุณและแชร์ลง LinkedIn ได้โดยตรง',
+    icon: 'verified',
+    iconBg: 'bg-blue-600/10',
+    iconColor: 'text-blue-600'
+  }
+]

Frontend-Learner/i18n/locales/en.json

@@ -5,7 +5,26 @@
   },
   "dashboard": {
     "welcomeTitle": "Welcome back",
-    "welcomeSubtitle": "Today is a great day to learn something new. Let's gain more knowledge!"
+    "welcomeSubtitle": "Today is a great day to learn something new. Let's gain more knowledge!",
+    "heroTitle": "Continually upskill yourself",
+    "heroSubtitle": "to achieve your goals",
+    "heroDesc": "How many minutes have you learned today? Let's build a great learning habit. We have many new recommended courses waiting for you.",
+    "goToMyCourses": "Go to My Courses",
+    "searchNewCourses": "Find New Courses",
+    "continueLearningTitle": "Continue learning with your courses",
+    "myCourses": "My Courses",
+    "studyAgain": "Study Again",
+    "continue": "Continue",
+    "startNewCourse": "Start new courses to fill this section",
+    "knowledgeLibrary": "Knowledge Library",
+    "libraryDesc": "You can choose to learn from courses you own",
+    "chooseLibrary": "Choose to learn from your knowledge library",
+    "viewAll": "View All",
+    "emptyLibraryTitle": "No courses in library yet",
+    "emptyLibraryDesc": "Start learning new things today. Browse interesting courses to develop your skills.",
+    "viewAllCourses": "View All Courses",
+    "recommendedCourses": "Recommended Courses",
+    "noRecommended": "No recommended courses found"
   },
   "menu": {
     "continueLearning": "Continue Learning",
@@ -40,25 +59,35 @@
     "studyAgain": "Study Again",
     "downloadCertificate": "Download Certificate",
     "completed": "Completed",
-    "includes": "Course includes",
-    "fullLifetimeAccess": "Full lifetime access",
-    "accessOnMobile": "Access on mobile and TV",
     "lifetimeAccess": "Lifetime access",
     "unlimitedQuizzes": "Unlimited quizzes",
     "satisfactionGuarantee": "Satisfaction guarantee, 7-day refund",
     "noContent": "No content available yet",
-    "buyNow": "Buy this course",
     "enrollFree": "Enroll for free",
     "loginToEnroll": "Log in to enroll",
     "minutes": "Minutes",
     "noVideoPreview": "Video preview not available",
-    "videoNotSupported": "Your browser does not support the video tag"
+    "videoNotSupported": "Your browser does not support the video tag",
+    "aboutCourse": "About Course",
+    "lessonDetails": "Lesson Details",
+    "courseStats": {
+      "level": "Level",
+      "duration": "Duration",
+      "lessons": "Lessons",
+      "students": "Students"
+      },
+    "certificatePreview": "Certificate Preview",
+    "certificateDesc": "Upon completion and passing criteria",
+    "includes": "This course includes",
+    "fullLifetimeAccess": "Full lifetime access",
+    "accessOnMobile": "Access on mobile and tablet",
+    "buyNow": "Buy Now"
   },
   "sidebar": {
     "overview": "Home",
     "myCourses": "My Courses",
     "browseCourses": "Browse Courses",
-    "onlineCourses": "Online Courses",
+    "onlineCourses": "All Courses",
     "recommendedCourses": "Recommended Courses",
     "announcements": "Announcements",
     "profile": "My Profile"
@@ -76,9 +105,16 @@
     "showAll": "Show All",
     "loadMore": "Load More",
     "backToCatalog": "Back to Catalog",
-    "selectable": "Selected"
+    "selectable": "Selected",
+    "foundTotal": "Found Total",
+    "items": "items",
+    "subtitle": "Choose to learn new skills from our curated quality courses",
+    "searchBtn": "Search"
   },
   "myCourses": {
+    "title": "My Courses",
+    "subtitle": "Track your progress and continue learning from where you left off",
+    "searchPlaceholder": "Search my courses...",
     "filterAll": "All",
     "filterProgress": "In Progress",
     "filterCompleted": "Completed",
@@ -109,6 +145,8 @@
     "email": "Email",
     "phone": "Phone",
     "joinedAt": "Joined",
+    "generalInfo": "General Information",
+    "accountDetails": "Account Details",
     "editPersonalDesc": "Edit Personal Information",
     "yourAvatar": "Your Profile Photo",
     "avatarHint": "PNG, JPG only",
@@ -258,5 +296,16 @@
     "statusNotStarted": "Not Started",
     "alertIncomplete": "Please answer all questions",
     "yourAnswer": "Your Answer"
+  },
+  "footer": {
+    "location": "LOCATION",
+    "connectWithUs": "CONNECT WITH US",
+    "broncoHorse": "Bronco Hourse",
+    "address": "123 อาคารสยามทาวเวอร์ ชั้น 15 เขตปทุมวัน กรุงเทพฯ 10330",
+    "emailLabel": "Email",
+    "emailValue": "info{'@'}chamomind.com",
+    "telLabel": "Tel",
+    "telValue": "02-123-4567",
+    "copyright": "© 2026 E-Learning Platform. All rights reserved."
   }
 }

Frontend-Learner/i18n/locales/th.json

@@ -5,7 +5,26 @@
   },
   "dashboard": {
     "welcomeTitle": "ยินดีต้อนรับกลับ",
-    "welcomeSubtitle": "วันนี้เป็นวันที่ดีสำหรับการเรียนรู้สิ่งใหม่ๆ มาเก็บความรู้เพิ่มกันเถอะ"
+    "welcomeSubtitle": "วันนี้เป็นวันที่ดีสำหรับการเรียนรู้สิ่งใหม่ๆ มาเก็บความรู้เพิ่มกันเถอะ",
+    "heroTitle": "อัปสกิลของคุณต่อเนื่อง",
+    "heroSubtitle": "เพื่อเป้าหมายที่วางไว้",
+    "heroDesc": "วันนี้คุณเรียนไปกี่นาทีแล้ว? มาสร้างนิสัยการเรียนรู้ที่ยอดเยี่ยมกันเถอะ เรามีคอร์สแนะนำใหม่ๆ มากมายรอคุณอยู่",
+    "goToMyCourses": "ไปที่คอร์สเรียนของฉัน",
+    "searchNewCourses": "ค้นหาคอร์สใหม่",
+    "continueLearningTitle": "เรียนต่อกับคอร์สของคุณ",
+    "myCourses": "คอร์สเรียนของฉัน",
+    "studyAgain": "เรียนอีกครั้ง",
+    "continue": "เรียนต่อ",
+    "startNewCourse": "เริ่มเรียนคอร์สใหม่ๆ เพื่อเติมเต็มส่วนนี้",
+    "knowledgeLibrary": "คลังความรู้",
+    "libraryDesc": "คุณสามารถเลือกเรียนคอร์สเรียนที่คุณเป็นเจ้าของ",
+    "chooseLibrary": "เลือกเรียนคอร์สในคลังความรู้ของคุณ",
+    "viewAll": "ดูทั้งหมด",
+    "emptyLibraryTitle": "ยังไม่มีคอร์สเรียนในคลัง",
+    "emptyLibraryDesc": "เริ่มเรียนรู้สิ่งใหม่ๆ วันนี้ เลือกดูคอร์สเรียนที่น่าสนใจเพื่อพัฒนาทักษะของคุณ",
+    "viewAllCourses": "ดูคอร์สเรียนทั้งหมด",
+    "recommendedCourses": "คอร์สแนะนำ",
+    "noRecommended": "ไม่พบข้อมูลคอร์สแนะนำ"
   },
   "menu": {
     "continueLearning": "เรียนต่อจากเดิม",
@@ -40,26 +59,36 @@
     "studyAgain": "ทบทวนบทเรียน",
     "downloadCertificate": "ดาวน์โหลดประกาศนียบัตร",
     "completed": "เรียนจบเรียบร้อย",
-    "includes": "สิ่งที่รวมอยู่ในคอร์ส",
-    "fullLifetimeAccess": "เข้าเรียนได้ตลอดชีพ",
-    "accessOnMobile": "เรียนได้บนมือถือและแท็บเล็ต",
     "lifetimeAccess": "เข้าเรียนได้ตลอดชีพ",
     "unlimitedQuizzes": "ทำแบบทดสอบไม่จำกัด",
     "satisfactionGuarantee": "รับประกันความพึงพอใจ คืนเงินภายใน 7 วัน",
     "noContent": "ยังไม่มีเนื้อหาในขณะนี้",
-    "buyNow": "ซื้อคอร์สเรียนนี้",
     "enrollFree": "ลงทะเบียนเรียนฟรี",
     "loginToEnroll": "เข้าสู่ระบบเพื่อลงทะเบียน",
     "minutes": "นาที",
     "noVideoPreview": "วิดีโอตัวอย่างยังไม่พร้อมใช้งาน",
-    "videoNotSupported": "เบราว์เซอร์ของคุณไม่รองรับการเล่นวิดีโอ"
+    "videoNotSupported": "เบราว์เซอร์ของคุณไม่รองรับการเล่นวิดีโอ",
+    "aboutCourse": "เกี่ยวกับคอร์ส",
+    "lessonDetails": "รายละเอียดบทเรียน",
+    "courseStats": {
+      "level": "ระดับ",
+      "duration": "ระยะเวลา",
+      "lessons": "บทเรียน",
+      "students": "ผู้เรียน"
+    },
+    "certificatePreview": "ตัวอย่างใบประกาศนียบัตร",
+    "certificateDesc": "เมื่อเรียนจบและสอบผ่านตามเกณฑ์ที่กำหนด",
+    "includes": "สิ่งที่รวมอยู่ในคอร์ส",
+    "fullLifetimeAccess": "เข้าเรียนได้ตลอดชีพ",
+    "accessOnMobile": "เรียนได้บนมือถือและแท็บเล็ต",
+    "buyNow": "ซื้อคอร์สนี้"
   },
   "sidebar": {
     "overview": "หน้าหลัก",
     "myCourses": "คอร์สของฉัน",
     "browseCourses": "ค้นหาคอร์ส",
-    "onlineCourses": "คอร์สออนไลน์",
-    "recommendedCourses": "คอร์สเรียนออนไลน์แนะนำ",
+    "onlineCourses": "คอร์สเรียนทั้งหมด",
+    "recommendedCourses": "คอร์สเรียนแนะนำ",
     "announcements": "ข่าวประกาศ",
     "profile": "บัญชีผู้ใช้"
   },
@@ -76,9 +105,16 @@
     "showAll": "แสดงทั้งหมด",
     "loadMore": "โหลดเพิ่มเติม",
     "backToCatalog": "กลับหน้ารายการคอร์ส",
-    "selectable": "รายการที่เลือก"
+    "selectable": "รายการที่เลือก",
+    "foundTotal": "พบทั้งหมด",
+    "items": "รายการ",
+    "subtitle": "เลือกเรียนรู้ทักษะใหม่ๆ จากหลักสูตรคุณภาพที่คัดสรรมาเพื่อคุณ",
+    "searchBtn": "ค้นหา"
   },
   "myCourses": {
+    "title": "คอร์สของฉัน",
+    "subtitle": "ติดตามความคืบหน้าและเรียนรู้ต่อจากจุดที่ค้างไว้",
+    "searchPlaceholder": "ค้นหาชื่อคอร์สของฉัน...",
     "filterAll": "ทั้งหมด",
     "filterProgress": "กำลังเรียน",
     "filterCompleted": "เรียนจบแล้ว",
@@ -109,6 +145,8 @@
     "email": "อีเมล",
     "phone": "เบอร์โทรศัพท์",
     "joinedAt": "สมัครสมาชิกเมื่อ",
+    "generalInfo": "ข้อมูลทั่วไป",
+    "accountDetails": "รายละเอียดบัญชี",
     "editPersonalDesc": "แก้ไขข้อมูลส่วนตัว",
     "yourAvatar": "รูปโปรไฟล์ของคุณ",
     "avatarHint": "เฉพาะไฟล์ png , jpg",
@@ -153,7 +191,7 @@
     "logout": "ออกจากระบบ"
   },
   "landing": {
-    "allCourses": "คอร์สทั้งหมด",
+    "allCourses": "คอร์สเรียนทั้งหมด",
     "discovery": "ค้นพบ",
     "goToDashboard": "เข้าสู่หน้าจัดการเรียน"
   },
@@ -258,5 +296,16 @@
     "statusNotStarted": "ยังไม่ทำ",
     "alertIncomplete": "กรุณาเลือกคำตอบให้ครบทุกข้อ",
     "yourAnswer": "คำตอบของคุณ"
+  },
+  "footer": {
+    "location": "สถานที่ตั้ง",
+    "connectWithUs": "ติดต่อเรา",
+    "broncoHorse": "Bronco Hourse",
+    "address": "123 อาคารสยามทาวเวอร์ ชั้น 15 เขตปทุมวัน กรุงเทพฯ 10330",
+    "emailLabel": "อีเมล",
+    "emailValue": "info{'@'}chamomind.com",
+    "telLabel": "เบอร์โทรศัพท์",
+    "telValue": "02-123-4567",
+    "copyright": "© 2026 E-Learning Platform. All rights reserved."
   }
 }

Frontend-Learner/layouts/dashboard-index.vue

@@ -0,0 +1,167 @@
+<script setup lang="ts">
+/**
+ * @file dashboard-index.vue
+ * @description Layout for the Dashboard Index page, without the sidebar.
+ * Uses Quasar QLayout for responsive structure.
+ */
+
+// Initialize global theme management
+useThemeMode()
+
+const { currentUser, logout } = useAuth()
+const { isDark, set: setTheme } = useThemeMode()
+const rightDrawerOpen = ref(false)
+const toggleRightDrawer = () => {
+  rightDrawerOpen.value = !rightDrawerOpen.value
+}
+</script>
+
+<template>
+  <q-layout view="hHh lpR fFf" class="bg-slate-50 dark:!bg-[#020617] text-slate-900 dark:!text-slate-50">
+    <!-- Header -->
+    <q-header
+      class="bg-white/80 dark:!bg-[#0f172a]/80 backdrop-blur-md text-slate-900 dark:!text-white"
+    >
+      <AppHeader 
+        @toggleRightDrawer="toggleRightDrawer"
+        :showSidebarToggle="false" 
+        navType="learner" 
+      />
+    </q-header>
+
+    <!-- Master Mobile Drawer (The Everything Hub) -->
+    <q-drawer
+      v-model="rightDrawerOpen"
+      side="right"
+      overlay
+      bordered
+      class="bg-white dark:!bg-[#0f172a]"
+      :width="300"
+    >
+      <div class="flex flex-col h-full bg-white dark:bg-[#0f172a]">
+        <!-- 1. Account Section (Premium Look) -->
+        <div class="p-6 bg-slate-50/50 dark:bg-slate-800/30 border-b border-slate-100 dark:border-slate-800">
+          <div class="flex items-center justify-between mb-8">
+             <div class="flex items-center gap-3">
+               <div class="w-8 h-8 rounded-lg bg-blue-600 flex items-center justify-center text-white font-black">E</div>
+               <span class="font-black text-lg text-slate-900 dark:text-white">E-Learning</span>
+            </div>
+            <q-btn flat round dense icon="close" class="text-slate-400" @click="rightDrawerOpen = false" />
+          </div>
+
+          <div class="flex items-center gap-4 py-2">
+            <q-avatar size="64px" class="shadow-lg border-2 border-white dark:border-slate-700">
+              <img :src="currentUser?.photoURL || 'https://cdn.quasar.dev/img/avatar.png'" />
+            </q-avatar>
+            <div class="overflow-hidden">
+              <p class="font-bold text-slate-900 dark:text-white mb-0 truncate text-lg">
+                {{ currentUser?.firstName || 'Guest' }} {{ currentUser?.lastName || '' }}
+              </p>
+              <p class="text-xs text-slate-500 dark:text-slate-400 truncate">{{ currentUser?.email || 'e-learning@platform.com' }}</p>
+            </div>
+          </div>
+        </div>
+
+        <!-- 2. Integrated Content Hub -->
+        <div class="flex-grow overflow-y-auto pt-4">
+          <q-list padding class="text-slate-600 dark:text-slate-300">
+            <!-- Navigation -->
+            <q-item-label header class="text-[11px] font-black tracking-[0.2em] text-slate-400 uppercase px-6 pb-2">เมนูหลัก</q-item-label>
+            
+            <q-item to="/dashboard" clickable v-ripple class="px-6 py-4" active-class="bg-blue-50 text-blue-600 dark:bg-blue-900/20 dark:text-blue-400 font-bold" @click="rightDrawerOpen = false">
+              <q-item-section avatar><q-icon name="dashboard" size="24px" /></q-item-section>
+              <q-item-section><span class="text-[15px] font-bold">{{ $t("sidebar.overview") }}</span></q-item-section>
+            </q-item>
+            
+            <q-item to="/browse/discovery" clickable v-ripple class="px-6 py-4" active-class="bg-blue-50 text-blue-600 dark:bg-blue-900/20 dark:text-blue-400 font-bold" @click="rightDrawerOpen = false">
+              <q-item-section avatar><q-icon name="explore" size="24px" /></q-item-section>
+              <q-item-section><span class="text-[15px] font-bold">{{ $t("landing.allCourses") }}</span></q-item-section>
+            </q-item>
+            
+            <q-item to="/dashboard/my-courses" clickable v-ripple class="px-6 py-4" active-class="bg-blue-50 text-blue-600 dark:bg-blue-900/20 dark:text-blue-400 font-bold" @click="rightDrawerOpen = false">
+              <q-item-section avatar><q-icon name="school" size="24px" /></q-item-section>
+              <q-item-section><span class="text-[15px] font-bold">{{ $t("sidebar.myCourses") || 'คอร์สเรียนของฉัน' }}</span></q-item-section>
+            </q-item>
+
+            <q-separator class="my-4 mx-6 opacity-50" />
+
+            <!-- Tools & Settings -->
+            <q-item-label header class="text-[11px] font-black tracking-[0.2em] text-slate-400 uppercase px-6 pb-2">เครื่องมือและการตั้งค่า</q-item-label>
+            
+            <!-- Language Selection -->
+            <q-item class="px-6 py-2">
+              <q-item-section avatar><q-icon name="language" size="22px" /></q-item-section>
+              <q-item-section>
+                <div class="flex items-center justify-between">
+                  <span class="font-bold text-[14px]">ภาษา</span>
+                  <LanguageSwitcher dense />
+                </div>
+              </q-item-section>
+            </q-item>
+
+            <!-- Dark Mode Toggle -->
+            <q-item class="px-6 py-2">
+              <q-item-section avatar><q-icon :name="isDark ? 'dark_mode' : 'light_mode'" size="22px" /></q-item-section>
+              <q-item-section>
+                <div class="flex items-center justify-between">
+                  <span class="font-bold text-[14px]">โหมดกลางคืน</span>
+                  <q-toggle
+                    :model-value="isDark"
+                    @update:model-value="setTheme"
+                    color="blue"
+                  />
+                </div>
+              </q-item-section>
+            </q-item>
+
+            <q-item clickable v-ripple @click="navigateTo('/dashboard/profile'); rightDrawerOpen = false" class="px-6 py-4">
+              <q-item-section avatar><q-icon name="person_outline" size="24px" /></q-item-section>
+              <q-item-section><span class="font-bold text-[15px]">จัดการโปรไฟล์</span></q-item-section>
+            </q-item>
+          </q-list>
+        </div>
+
+        <!-- 3. Bottom Actions -->
+        <div class="p-6 mt-auto border-t border-slate-100 dark:border-slate-800">
+          <q-btn
+            unelevated
+            class="full-width rounded-xl bg-red-50 text-red-600 dark:bg-red-900/20 dark:text-red-400 font-bold py-3 no-caps transition-all active:scale-95"
+            @click="logout"
+          >
+            <q-icon name="logout" size="20px" class="mr-2" />
+            ออกจากระบบ
+          </q-btn>
+          <div class="text-center mt-6">
+            <span class="text-[10px] font-bold uppercase tracking-[0.2em] text-slate-300 dark:text-slate-600">E-Learning Platform v1.0</span>
+          </div>
+        </div>
+      </div>
+    </q-drawer>
+
+    <!-- Sidebar Removed for this layout -->
+
+    <!-- Main Content -->
+    <q-page-container>
+      <q-page class="relative">
+        <slot />
+      </q-page>
+    </q-page-container>
+
+    <!-- Mobile Bottom Nav - Optional, keeping it consistent with default but maybe not needed if full width?
+         If we remove sidebar, we might still want mobile nav if it's main navigation.
+         Let's keep it for now as it doesn't hurt. -->
+    <q-footer
+      v-if="$q.screen.lt.md"
+      class="!bg-white dark:!bg-[#1e293b] text-primary"
+    >
+       <MobileNav />
+    </q-footer>
+  </q-layout>
+</template>
+
+<style>
+/* Ensure fonts are applied */
+.font-inter {
+  font-family: var(--font-main);
+}
+</style>

Frontend-Learner/layouts/default.vue

@@ -8,23 +8,43 @@
 // Initialize global theme management
 useThemeMode()
 
+const { currentUser, logout } = useAuth()
+const { isDark, set: setTheme } = useThemeMode()
 const leftDrawerOpen = ref(false)
+const rightDrawerOpen = ref(false)
+
 const toggleLeftDrawer = () => {
   leftDrawerOpen.value = !leftDrawerOpen.value
 }
+
+const toggleRightDrawer = () => {
+  rightDrawerOpen.value = !rightDrawerOpen.value
+}
+
+const route = useRoute()
+// Automatically hide sidebar for learner routes
+const shouldHideSidebar = computed(() => {
+  const silentRoutes = ['/dashboard', '/browse', '/classroom', '/course']
+  return silentRoutes.some(r => route.path.startsWith(r))
+})
 </script>
 
 <template>
   <q-layout view="hHh LpR lFf" class="bg-slate-50 dark:!bg-[#020617] text-slate-900 dark:!text-slate-50">
     <!-- Header -->
     <q-header
-      class="bg-white/80 dark:!bg-[#0f172a]/80 backdrop-blur-md text-slate-900 dark:!text-white"
+      class="bg-white/80 dark:!bg-[#0f172a]/80 backdrop-blur-md text-slate-900 dark:!text-white border-none shadow-none"
     >
-      <AppHeader @toggleSidebar="toggleLeftDrawer" />
+      <AppHeader 
+        @toggleSidebar="toggleLeftDrawer" 
+        @toggleRightDrawer="toggleRightDrawer"
+        :showSidebarToggle="!shouldHideSidebar" 
+      />
     </q-header>
 
-    <!-- Sidebar (Drawer) -->
+    <!-- Sidebar (Drawer - Desktop Left) -->
     <q-drawer
+      v-if="!shouldHideSidebar"
       v-model="leftDrawerOpen"
       show-if-above
       :width="280"
@@ -33,6 +53,112 @@ const toggleLeftDrawer = () => {
       <AppSidebar />
     </q-drawer>
 
+    <!-- Master Mobile Drawer (The Everything Hub) -->
+    <q-drawer
+      v-model="rightDrawerOpen"
+      side="right"
+      overlay
+      class="bg-white dark:!bg-[#0f172a]"
+      :width="300"
+    >
+      <div class="flex flex-col h-full bg-white dark:!bg-[#0f172a] text-slate-900 dark:!text-slate-100">
+        <!-- 1. Account Section -->
+        <div class="p-6 bg-slate-50/50 dark:!bg-slate-800/20">
+          <div class="flex items-center justify-between mb-8">
+             <div class="flex items-center gap-3">
+               <div class="w-8 h-8 rounded-lg bg-blue-600 flex items-center justify-center text-white font-black">E</div>
+               <span class="font-black text-lg text-slate-900 dark:text-white">E-Learning</span>
+            </div>
+            <q-btn flat round dense icon="close" class="text-slate-400" @click="rightDrawerOpen = false" />
+          </div>
+
+          <div class="flex items-center gap-4 py-2">
+            <q-avatar size="64px" class="shadow-lg border-2 border-white dark:border-slate-700">
+              <img :src="currentUser?.photoURL || 'https://cdn.quasar.dev/img/avatar.png'" />
+            </q-avatar>
+            <div class="overflow-hidden">
+              <p class="font-bold text-slate-900 dark:!text-white mb-0 truncate text-lg">
+                {{ currentUser?.firstName || 'Guest' }} {{ currentUser?.lastName || '' }}
+              </p>
+              <p class="text-xs text-slate-500 dark:!text-slate-400 truncate">{{ currentUser?.email || 'e-learning@platform.com' }}</p>
+            </div>
+          </div>
+        </div>
+
+        <!-- 2. Integrated Content Hub -->
+        <div class="flex-grow overflow-y-auto pt-4">
+          <q-list padding class="text-slate-600 dark:!text-slate-300">
+            <!-- Navigation -->
+            <q-item-label header class="text-[11px] font-black tracking-[0.2em] text-slate-400 uppercase px-6 pb-2">เมนูหลัก</q-item-label>
+            
+            <q-item to="/dashboard" clickable v-ripple class="px-6 py-4" active-class="bg-blue-50 text-blue-600 dark:!bg-blue-900/30 dark:!text-blue-400 font-bold" @click="rightDrawerOpen = false">
+              <q-item-section avatar><q-icon name="dashboard" size="24px" /></q-item-section>
+              <q-item-section><span class="text-[15px] font-bold">{{ $t("sidebar.overview") }}</span></q-item-section>
+            </q-item>
+            
+            <q-item to="/browse/discovery" clickable v-ripple class="px-6 py-4" active-class="bg-blue-50 text-blue-600 dark:!bg-blue-900/30 dark:!text-blue-400 font-bold" @click="rightDrawerOpen = false">
+              <q-item-section avatar><q-icon name="explore" size="24px" /></q-item-section>
+              <q-item-section><span class="text-[15px] font-bold">{{ $t("landing.allCourses") }}</span></q-item-section>
+            </q-item>
+            
+            <q-item to="/dashboard/my-courses" clickable v-ripple class="px-6 py-4" active-class="bg-blue-50 text-blue-600 dark:!bg-blue-900/30 dark:!text-blue-400 font-bold" @click="rightDrawerOpen = false">
+              <q-item-section avatar><q-icon name="school" size="24px" /></q-item-section>
+              <q-item-section><span class="text-[15px] font-bold">{{ $t("sidebar.myCourses") || 'คอร์สเรียนของฉัน' }}</span></q-item-section>
+            </q-item>
+
+            <!-- Tools & Settings -->
+            <q-item-label header class="text-[11px] font-black tracking-[0.2em] text-slate-400 uppercase px-6 pb-2 mt-4">เครื่องมือและการตั้งค่า</q-item-label>
+            
+            <!-- Language Selection -->
+            <q-item class="px-6 py-2">
+              <q-item-section avatar><q-icon name="language" size="22px" /></q-item-section>
+              <q-item-section>
+                <div class="flex items-center justify-between">
+                  <span class="font-bold text-[14px]">ภาษา</span>
+                  <LanguageSwitcher dense />
+                </div>
+              </q-item-section>
+            </q-item>
+
+            <!-- Dark Mode Toggle -->
+            <q-item class="px-6 py-2">
+              <q-item-section avatar><q-icon :name="isDark ? 'dark_mode' : 'light_mode'" size="22px" /></q-item-section>
+              <q-item-section>
+                <div class="flex items-center justify-between">
+                  <span class="font-bold text-[14px]">โหมดกลางคืน</span>
+                  <q-toggle
+                    :model-value="isDark"
+                    @update:model-value="setTheme"
+                    color="blue"
+                  />
+                </div>
+              </q-item-section>
+            </q-item>
+
+            <q-item clickable v-ripple @click="navigateTo('/dashboard/profile'); rightDrawerOpen = false" class="px-6 py-4">
+              <q-item-section avatar><q-icon name="person_outline" size="24px" /></q-item-section>
+              <q-item-section><span class="font-bold text-[15px] dark:!text-slate-300">จัดการโปรไฟล์</span></q-item-section>
+            </q-item>
+          </q-list>
+        </div>
+
+        <!-- 3. Bottom Actions -->
+        <div class="p-6 mt-auto border-t border-slate-100 dark:!border-white/10">
+          <q-btn
+            unelevated
+            class="full-width rounded-xl bg-red-50 text-red-600 dark:!bg-red-900/20 dark:!text-red-400 font-bold py-3 no-caps transition-all active:scale-95"
+            @click="logout"
+          >
+            <q-icon name="logout" size="20px" class="mr-2" />
+            ออกจากระบบ
+          </q-btn>
+          <div class="text-center mt-6">
+            <span class="text-[10px] font-bold uppercase tracking-[0.2em] text-slate-300 dark:text-slate-600">E-Learning Platform v1.0</span>
+          </div>
+        </div>
+      </div>
+    </q-drawer>
+
     <!-- Main Content -->
     <q-page-container>
       <q-page class="relative">
@@ -40,13 +166,7 @@ const toggleLeftDrawer = () => {
       </q-page>
     </q-page-container>
 
-    <!-- Mobile Bottom Nav -->
-    <q-footer
-      v-if="$q.screen.lt.md"
-      class="!bg-white dark:!bg-[#1e293b] text-primary"
-    >
-       <MobileNav />
-    </q-footer>
+
   </q-layout>
 </template>
 

Frontend-Learner/nuxt.config.ts

@@ -66,6 +66,7 @@ export default defineNuxtConfig({
         { name: "viewport", content: "width=device-width, initial-scale=1" },
       ],
       link: [
+        { rel: 'icon', type: 'image/png', href: '/img/logo.png' },
         {
           rel: "stylesheet",
           // โหลด Font: Inter, Prompt, Sarabun

Frontend-Learner/pages/auth/login.vue

@@ -237,17 +237,24 @@ onMounted(() => {
             <div v-else class="w-5 h-5 border-2 border-white/30 border-t-white rounded-full animate-spin"></div>
           </button>
 
+          <!-- Test Credentials Box -->
+          <div class="mt-4 p-5 bg-blue-50/50 border border-blue-100 rounded-2xl flex flex-col items-center gap-2 animate-fade-in">
+             <div class="text-[11px] font-black uppercase tracking-[0.2em] text-blue-600 mb-1">บัญชีสำหรับทดสอบ (Test Account)</div>
+             <div class="flex flex-col items-center gap-1">
+                <div class="text-base font-black text-slate-900 select-all cursor-copy hover:text-blue-600 transition-colors">
+                   studentedtest@example.com
+                </div>
+                <div class="flex items-center gap-2">
+                   <span class="text-[11px] font-black uppercase tracking-wider text-slate-600">Password:</span>
+                   <span class="text-base font-black select-all cursor-copy hover:text-blue-600 transition-colors text-slate-900">admin123</span>
+                </div>
+             </div>
+          </div>
+
         </form>
 
-        <!-- Divider -->
-        <div class="my-8 flex items-center gap-4">
-           <div class="h-px bg-slate-200 flex-1"></div>
-           <span class="text-slate-400 text-xs font-medium uppercase tracking-wider">หรือ</span>
-           <div class="h-px bg-slate-200 flex-1"></div>
-        </div>
-
         <!-- Register Link -->
-        <div class="text-center">
+        <div class="text-center mt-8">
             <p class="text-slate-600 text-sm">
                ยังไม่มีบัญชีสมาชิก? 
                <NuxtLink to="/auth/register" class="font-bold text-blue-600 hover:text-blue-700 transition-colors ml-1">

Frontend-Learner/pages/browse/discovery.vue

@@ -33,29 +33,31 @@ const currentPage = ref(1);
 const totalPages = ref(1);
 const itemsPerPage = 12;
 
-
 const { t, locale } = useI18n();
 const { currentUser } = useAuth();
 const $q = useQuasar();
 const { fetchCategories } = useCategory();
-const { fetchCourses, fetchCourseById, enrollCourse, getLocalizedText } = useCourse();
+const { fetchCourses, fetchCourseById, enrollCourse, getLocalizedText } =
+  useCourse();
 
 // 2. Computed Properties
-const sortOption = ref(t('discovery.sortRecent'));
-const sortOptions = computed(() => [t('discovery.sortRecent')]);
+const sortOption = ref(t("discovery.sortRecent"));
+const sortOptions = computed(() => [t("discovery.sortRecent")]);
 
 const filteredCourses = computed(() => {
   let result = courses.value;
-  
-  // If more than 1 category is selected, we still do client-side filtering 
+
+  // If more than 1 category is selected, we still do client-side filtering
   // because the API currently only supports one category_id at a time.
   if (selectedCategoryIds.value.length > 1) {
-    result = result.filter(c => selectedCategoryIds.value.includes(c.category_id));
+    result = result.filter((c) =>
+      selectedCategoryIds.value.includes(c.category_id),
+    );
   }
-  
+
   if (searchQuery.value) {
     const query = searchQuery.value.toLowerCase();
-    result = result.filter(c => {
+    result = result.filter((c) => {
       const title = getLocalizedText(c.title).toLowerCase();
       const desc = getLocalizedText(c.description).toLowerCase();
       return title.includes(query) || (desc && desc.includes(query));
@@ -66,7 +68,6 @@ const filteredCourses = computed(() => {
 
 // 3. Helper Functions
 
-
 // 4. API Actions
 const loadCategories = async () => {
   const res = await fetchCategories();
@@ -75,17 +76,21 @@ const loadCategories = async () => {
 
 const loadCourses = async (page = 1) => {
   isLoading.value = true;
-  
+
   // Use server-side filtering if exactly one category is selected
-  const categoryId = selectedCategoryIds.value.length === 1 ? selectedCategoryIds.value[0] : undefined;
-  
+  const categoryId =
+    selectedCategoryIds.value.length === 1
+      ? selectedCategoryIds.value[0]
+      : undefined;
+
   const res = await fetchCourses({
     category_id: categoryId,
+    search: searchQuery.value,
     page: page,
     limit: itemsPerPage,
-    forceRefresh: true
+    forceRefresh: true,
   });
-  
+
   if (res.success) {
     courses.value = res.data || [];
     totalPages.value = res.totalPages || 1;
@@ -108,33 +113,37 @@ const handleEnroll = async (id: number) => {
   isEnrolling.value = true;
   const res = await enrollCourse(id);
   if (res.success) {
-    return navigateTo('/dashboard/my-courses?enrolled=true');
+    return navigateTo("/dashboard/my-courses?enrolled=true");
   } else {
     $q.notify({
-        type: 'negative',
-        message: res.error || t('enrollment.error'),
-        position: 'top',
-        timeout: 3000,
-        actions: [{ icon: 'close', color: 'white' }]
-    })
+      type: "negative",
+      message: res.error || t("enrollment.error"),
+      position: "top",
+      timeout: 3000,
+      actions: [{ icon: "close", color: "white" }],
+    });
   }
   isEnrolling.value = false;
 };
 
 // Watch for category selection changes to reload courses
-watch(selectedCategoryIds, () => {
-  currentPage.value = 1;
-  loadCourses(1);
-}, { deep: true });
+watch(
+  selectedCategoryIds,
+  () => {
+    currentPage.value = 1;
+    loadCourses(1);
+  },
+  { deep: true },
+);
 
 const toggleCategory = (id: number) => {
-  const index = selectedCategoryIds.value.indexOf(id)
+  const index = selectedCategoryIds.value.indexOf(id);
   if (index === -1) {
-    selectedCategoryIds.value.push(id)
+    selectedCategoryIds.value.push(id);
   } else {
-    selectedCategoryIds.value.splice(index, 1)
+    selectedCategoryIds.value.splice(index, 1);
   }
-}
+};
 
 onMounted(() => {
   loadCategories();
@@ -144,122 +153,168 @@ onMounted(() => {
 
 <template>
   <div class="page-container">
-
     <!-- CATALOG VIEW: Browse courses -->
     <div v-if="!showDetail">
-
       <!-- Top Header Area -->
-      <div class="flex flex-col gap-6 mb-10">
-        <div class="flex flex-col md:flex-row md:items-center justify-between gap-6">
-          <!-- Title -->
-          <h1 class="text-3xl font-black text-slate-900 dark:text-white flex items-center gap-3">
-            <span class="w-1.5 h-8 bg-blue-600 rounded-full shadow-sm shadow-blue-500/50"></span>
-            {{ $t('discovery.title') }}
+      <!-- New Enhanced Search Section (Image 1 Style) -->
+      <div class="bg-blue-50/50 dark:bg-blue-900/10 rounded-[2.5rem] p-8 md:p-10 mb-8 border border-blue-100/50 dark:border-blue-500/10 transition-colors duration-300">
+        <div class="flex items-center gap-4 mb-2">
+          <h1 class="text-2xl md:text-3xl font-black text-slate-900 dark:text-white">
+            {{ $t("discovery.title") }}
           </h1>
-
-          <!-- Right Side: Search -->
-          <div class="flex items-center gap-3 w-full md:w-auto">
-            <q-input
-              v-model="searchQuery"
-              dense
-              outlined
-              rounded
-              :placeholder="$t('discovery.searchPlaceholder')"
-              class="w-full md:w-72 search-input shadow-sm"
-              bg-color="transparent"
-            >
-              <template v-slot:prepend>
-                <q-icon name="search" class="text-slate-400" />
-              </template>
-            </q-input>
-          </div>
         </div>
-
-        <!-- Unified Filter Section: Categories -->
-        <div class="flex flex-wrap items-center gap-2">
-           <q-btn
-             flat
-             rounded
-             dense
-             class="px-4 font-bold transition-all text-xs uppercase tracking-widest"
-             :class="selectedCategoryIds.length === 0 ? 'bg-blue-600 text-white shadow-lg shadow-blue-600/30' : 'bg-white dark:bg-slate-800 text-slate-500 dark:text-slate-400 border border-slate-200 dark:border-white/5'"
-             @click="selectedCategoryIds = []"
-             :label="$t('discovery.showAll')"
-           />
-           <q-btn
-             v-for="cat in categories"
-             :key="cat.id"
-             flat
-             rounded
-             dense
-             class="px-4 font-bold transition-all text-xs uppercase tracking-widest"
-             :class="selectedCategoryIds.includes(cat.id) ? 'bg-blue-600 text-white shadow-lg shadow-blue-600/30' : 'bg-white dark:bg-slate-800 text-slate-500 dark:text-slate-400 border border-slate-200 dark:border-white/5'"
-             @click="toggleCategory(cat.id)"
-             :label="getLocalizedText(cat.name)"
-           />
+        <p class="text-slate-500 dark:text-slate-400 font-medium mb-8">
+          {{ $t("discovery.subtitle") }}
+        </p>
+        
+        <div class="flex flex-col md:flex-row gap-4">
+          <!-- Search Input -->
+          <div class="relative flex-1 group">
+            <div class="absolute left-5 top-1/2 -translate-y-1/2 text-slate-400 group-focus-within:text-blue-600 transition-colors">
+              <q-icon name="search" size="24px" />
+            </div>
+            <input 
+              v-model="searchQuery"
+              type="text" 
+              :placeholder="$t('discovery.searchPlaceholder') || 'ค้นหาคอร์สที่น่าสนใจที่นี่...'"
+              class="w-full pl-14 pr-6 py-3.5 bg-white dark:!bg-slate-900/80 border-2 border-transparent dark:border-white/5 rounded-2xl text-slate-900 dark:text-white placeholder-slate-400 focus:outline-none focus:border-blue-500/20 focus:ring-4 focus:ring-blue-500/5 transition-all text-base font-medium shadow-sm"
+              @keyup.enter="loadCourses(1)"
+            />
+          </div>
+          
+          <!-- Search Button -->
+          <q-btn 
+            unelevated
+            color="primary"
+            class="px-8 h-[52px] rounded-2xl font-black shadow-lg shadow-blue-600/20 hover:scale-[1.02] transition-transform"
+            no-caps
+            @click="loadCourses(1)"
+          >
+            <div class="flex items-center gap-2">
+              <q-icon name="search" size="20px" />
+              <span class="text-base">{{ $t("discovery.searchBtn") }}</span>
+            </div>
+          </q-btn>
         </div>
       </div>
 
+      <div class="flex items-center justify-between mb-8 px-2">
+        <div class="text-slate-500 dark:text-slate-400 text-sm font-bold uppercase tracking-wider">
+          {{ $t("discovery.foundTotal") }} <span class="text-blue-600">{{ filteredCourses.length }}</span> {{ $t("discovery.items") }}
+        </div>
+      </div>
+
+      <!-- Unified Filter Section: Categories -->
+        <div
+          class="bg-white dark:!bg-slate-900/50 p-2 rounded-2xl border border-slate-100 dark:border-white/5 inline-flex flex-wrap items-center gap-1.5 shadow-sm mb-12"
+        >
+          <q-btn
+            flat
+            rounded
+            dense
+            class="px-5 py-2 font-bold transition-all text-[11px] uppercase tracking-wider"
+            :class="
+              selectedCategoryIds.length === 0
+                ? 'bg-blue-600 text-white shadow-md shadow-blue-600/20'
+                : 'text-slate-600 dark:text-slate-400 hover:bg-slate-50 dark:!hover:bg-slate-800/50'
+            "
+            @click="selectedCategoryIds = []"
+            :label="$t('discovery.showAll')"
+          />
+          <q-btn
+            v-for="cat in categories"
+            :key="cat.id"
+            flat
+            rounded
+            dense
+            class="px-5 py-2 font-bold transition-all text-[11px] uppercase tracking-wider"
+            :class="
+              selectedCategoryIds.includes(cat.id)
+                ? 'bg-blue-600 text-white shadow-md shadow-blue-600/20'
+                : 'text-slate-600 dark:text-slate-400 hover:bg-slate-50 dark:!hover:bg-slate-800/50'
+            "
+            @click="toggleCategory(cat.id)"
+            :label="getLocalizedText(cat.name)"
+          />
+        </div>
+
       <!-- Main Layout: Grid Only -->
       <div class="w-full">
-          <div v-if="filteredCourses.length > 0" class="flex flex-col gap-12">
-              <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 xl:grid-cols-4 gap-8">
-                  <CourseCard
-                    v-for="course in filteredCourses"
-                    :key="course.id"
-                    v-bind="{ ...course, image: course.thumbnail_url }"
-                    show-view-details
-                    @view-details="selectCourse(course.id)"
-                  />
-              </div>
-
-              <!-- Pagination Controls -->
-              <div v-if="totalPages > 1" class="flex justify-center pb-10">
-                <q-pagination
-                  v-model="currentPage"
-                  :max="totalPages"
-                  :max-pages="6"
-                  boundary-numbers
-                  direction-links
-                  color="primary"
-                  flat
-                  active-design="unelevated"
-                  active-color="primary"
-                  @update:model-value="loadCourses"
-                />
-              </div>
-          </div>
-
-          <!-- Empty State -->
+        <div v-if="filteredCourses.length > 0" class="flex flex-col gap-12">
           <div
-            v-else
-            class="flex flex-col items-center justify-center py-20 bg-white dark:bg-slate-800/50 rounded-3xl border-2 border-dashed border-slate-200 dark:border-slate-700 shadow-sm"
+            class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 xl:grid-cols-4 gap-8"
           >
-            <q-icon name="search_off" size="64px" class="text-slate-300 dark:text-slate-600 mb-4" />
-            <h3 class="text-xl font-bold text-slate-900 dark:text-white mb-2">{{ $t('discovery.emptyTitle') }}</h3>
-            <p class="text-slate-500 dark:text-slate-400 text-center max-w-md">
-              {{ $t('discovery.emptyDesc') }}
-            </p>
-            <button class="mt-6 font-bold text-blue-600 hover:text-blue-700 dark:hover:text-blue-400 transition-colors" @click="searchQuery = ''; selectedCategoryIds = []">
-              {{ $t('discovery.showAll') }}
-            </button>
+            <CourseCard
+              v-for="course in filteredCourses"
+              :key="course.id"
+              v-bind="{ ...course, image: course.thumbnail_url }"
+              show-view-details
+              @view-details="selectCourse(course.id)"
+            />
           </div>
-      </div>
 
+          <!-- Pagination Controls -->
+          <div v-if="totalPages > 1" class="flex justify-center pb-10">
+            <q-pagination
+              v-model="currentPage"
+              :max="totalPages"
+              :max-pages="6"
+              boundary-numbers
+              direction-links
+              color="primary"
+              flat
+              active-design="unelevated"
+              active-color="primary"
+              @update:model-value="loadCourses"
+            />
+          </div>
+        </div>
+
+        <!-- Empty State -->
+        <div
+          v-else
+          class="flex flex-col items-center justify-center py-20 bg-white dark:bg-slate-800/50 rounded-3xl border-2 border-dashed border-slate-200 dark:border-slate-700 shadow-sm"
+        >
+          <q-icon
+            name="search_off"
+            size="64px"
+            class="text-slate-300 dark:text-slate-600 mb-4"
+          />
+          <h3 class="text-xl font-bold text-slate-900 dark:text-white mb-2">
+            {{ $t("discovery.emptyTitle") }}
+          </h3>
+          <p class="text-slate-500 dark:text-slate-400 text-center max-w-md">
+            {{ $t("discovery.emptyDesc") }}
+          </p>
+          <button
+            class="mt-6 font-bold text-blue-600 hover:text-blue-700 dark:hover:text-blue-400 transition-colors"
+            @click="
+              searchQuery = '';
+              selectedCategoryIds = [];
+            "
+          >
+            {{ $t("discovery.showAll") }}
+          </button>
+        </div>
+      </div>
     </div>
 
     <!-- COURSE DETAIL VIEW: Detailed information about a specific course -->
     <div v-else>
-      <button 
-        @click="showDetail = false" 
+      <button
+        @click="showDetail = false"
         class="inline-flex items-center gap-2 text-slate-600 dark:text-white hover:text-blue-600 dark:hover:text-blue-300 mb-6 transition-all font-black text-lg md:text-xl group"
       >
-        <q-icon name="arrow_back" size="24px" class="transition-transform group-hover:-translate-x-1" />
-        {{ $t('discovery.backToCatalog') }}
+        <q-icon
+          name="arrow_back"
+          size="24px"
+          class="transition-transform group-hover:-translate-x-1"
+        />
+        {{ $t("discovery.backToCatalog") }}
       </button>
 
       <div v-if="isLoadingDetail" class="flex justify-center py-20">
-         <q-spinner size="3rem" color="primary" />
+        <q-spinner size="3rem" color="primary" />
       </div>
 
       <CourseDetailView
@@ -298,4 +353,3 @@ onMounted(() => {
   box-shadow: none !important;
 }
 </style>
-

Frontend-Learner/pages/browse/index.vue

@@ -143,7 +143,7 @@ const filteredCourses = computed(() => {
 
         <!-- Main Title -->
         <h1 class="text-4xl md:text-6xl font-black text-slate-900 mb-6 tracking-tight py-2 slide-up leading-[1.2] overflow-visible" style="animation-delay: 0.1s;">
-          คอร์สเรียนออนไลน์<span class="text-gradient-cyan">ทั้งหมด</span>
+          คอร์สเรียน<span class="text-gradient-cyan">ทั้งหมด</span>
         </h1>
         <!-- Subtitle -->
         <p class="text-slate-400 text-xl max-w-2xl mx-auto leading-relaxed slide-up" style="animation-delay: 0.2s;">
@@ -163,30 +163,42 @@ const filteredCourses = computed(() => {
        <!-- Content Frame Container -->
        <div class="glass-premium rounded-[3rem] p-8 md:p-12 shadow-xl shadow-blue-900/5">
         
-          <div class="flex flex-col md:flex-row md:items-center justify-between gap-8 mb-8">
-            <h2 class="text-2xl font-black text-slate-900  flex items-center gap-3">
-              <span class="w-2 h-8 bg-blue-600 rounded-full"/>
-              รายการคอร์สเรียน
-            </h2>
-
-            <!-- Search Bar (Compact) -->
-            <div class="relative max-w-md w-full">
-              <div class="relative group">
-                <input 
-                  v-model="searchQuery" 
-                  type="text" 
-                  class="w-full pl-12 pr-6 py-3 bg-slate-100  border border-slate-200  rounded-xl text-slate-900  placeholder-slate-400  focus:outline-none focus:bg-white focus: focus:ring-2 focus:ring-blue-500/50 transition-all font-medium" 
-                  placeholder="ค้นหาบทเรียน..." 
-                >
-                <div class="absolute left-4 top-1/2 -translate-y-1/2 text-slate-400">
-                  <svg xmlns="http://www.w3.org/2000/svg" class="h-5 w-5" fill="none" viewBox="0 0 24 24" stroke="currentColor">
-                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 21l-6-6m2-5a7 7 0 11-14 0 7 7 0 0114 0z" />
-                  </svg>
+          <!-- New Enhanced Search Section (Image 2 Style) -->
+          <div class="bg-blue-50/50 rounded-[2.5rem] p-8 md:p-10 mb-6 border border-blue-100/50">
+            <h2 class="text-2xl md:text-3xl font-black text-slate-900 mb-2">คอร์สเรียนทั้งหมด</h2>
+            <p class="text-slate-500 font-medium mb-8">พัฒนาทักษะใหม่ๆ กับผู้เชี่ยวชาญจากทั่วโลก</p>
+            
+            <div class="flex flex-col md:flex-row gap-4">
+              <!-- Search Input -->
+              <div class="relative flex-1 group">
+                <div class="absolute left-5 top-1/2 -translate-y-1/2 text-slate-400 group-focus-within:text-blue-600 transition-colors">
+                  <q-icon name="search" size="24px" />
                 </div>
+                <input 
+                  v-model="searchQuery"
+                  type="text" 
+                  placeholder="ค้นหาชื่อคอร์ส..."
+                  class="w-full pl-14 pr-6 py-4 bg-white border-2 border-transparent rounded-2xl text-slate-900 placeholder-slate-400 focus:outline-none focus:border-blue-500/20 focus:ring-4 focus:ring-blue-500/5 transition-all text-lg font-medium shadow-sm"
+                />
               </div>
+              
+              <!-- Search Button -->
+              <q-btn 
+                unelevated
+                color="primary"
+                class="px-4 h-16 rounded-2xl font-black shadow-lg shadow-blue-600/20 hover:scale-[1.02] transition-transform"
+                no-caps
+              >
+                <div class="flex items-center gap-2">
+                  <q-icon name="search" size="20px" />
+                  <span class="text-base">ค้นหา</span>
+                </div>
+              </q-btn>
             </div>
           </div>
 
+
+
           <!-- Category Filter Tabs with Scroll Buttons -->
           <div class="relative mb-8">
             <!-- Left Scroll Button -->

Frontend-Learner/pages/browse/recommended.vue

@@ -113,7 +113,7 @@ const filteredCourses = computed(() => {
         <!-- Tagline Badge -->
         <!-- Main Title -->
         <h1 class="text-4xl md:text-6xl font-black text-slate-900 mb-6 tracking-tight py-2 slide-up leading-[1.2] overflow-visible" style="animation-delay: 0.1s;">
-          คอร์สเรียนออนไลน์<span class="text-gradient-cyan">แนะนำ</span>
+          คอร์สเรียน<span class="text-gradient-cyan">แนะนำ</span>
         </h1>
         <!-- Subtitle -->
         <p class="text-slate-400 text-xl max-w-2xl mx-auto leading-relaxed slide-up" style="animation-delay: 0.2s;">
@@ -130,27 +130,37 @@ const filteredCourses = computed(() => {
        <!-- Content Frame Container -->
        <div class="glass-premium rounded-[3rem] p-8 md:p-12 shadow-xl shadow-blue-900/5">
         
-          <div class="flex flex-col md:flex-row md:items-center justify-between gap-8 mb-8">
-            <h2 class="text-2xl font-black text-slate-900  flex items-center gap-3">
-              <span class="w-2 h-8 bg-blue-600 rounded-full"/>
-              คอร์สที่คุณห้ามพลาด
-            </h2>
-
-            <!-- Search Bar (Compact) -->
-            <div class="relative max-w-md w-full">
-              <div class="relative group">
-                <input 
-                  v-model="searchQuery" 
-                  type="text" 
-                  class="w-full pl-12 pr-6 py-3 bg-slate-100  border border-slate-200  rounded-xl text-slate-900  placeholder-slate-400  focus:outline-none focus:bg-white focus: focus:ring-2 focus:ring-blue-500/50 transition-all font-medium" 
-                  placeholder="ค้นหาคอร์สแนะนำ..." 
-                >
-                <div class="absolute left-4 top-1/2 -translate-y-1/2 text-slate-400">
-                  <svg xmlns="http://www.w3.org/2000/svg" class="h-5 w-5" fill="none" viewBox="0 0 24 24" stroke="currentColor">
-                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 21l-6-6m2-5a7 7 0 11-14 0 7 7 0 0114 0z" />
-                  </svg>
+          <!-- New Enhanced Search Section (Image 2 Style) -->
+          <div class="bg-blue-50/50 rounded-[2.5rem] p-8 md:p-10 mb-6 border border-blue-100/50">
+            <h2 class="text-2xl md:text-3xl font-black text-slate-900 mb-2">คอร์สเรียนแนะนำ</h2>
+            <p class="text-slate-500 font-medium mb-8">คัดสรรเนื้อหาคุณภาพสูงที่คุณไม่ควรพลาด</p>
+            
+            <div class="flex flex-col md:flex-row gap-4">
+              <!-- Search Input -->
+              <div class="relative flex-1 group">
+                <div class="absolute left-5 top-1/2 -translate-y-1/2 text-slate-400 group-focus-within:text-blue-600 transition-colors">
+                  <q-icon name="search" size="24px" />
                 </div>
+                <input 
+                  v-model="searchQuery"
+                  type="text" 
+                  placeholder="ค้นหาชื่อคอร์สแนะนำ..."
+                  class="w-full pl-14 pr-6 py-4 bg-white border-2 border-transparent rounded-2xl text-slate-900 placeholder-slate-400 focus:outline-none focus:border-blue-500/20 focus:ring-4 focus:ring-blue-500/5 transition-all text-lg font-medium shadow-sm"
+                />
               </div>
+              
+              <!-- Search Button -->
+              <q-btn 
+                unelevated
+                color="primary"
+                class="px-4 h-16 rounded-2xl font-black shadow-lg shadow-blue-600/20 hover:scale-[1.02] transition-transform"
+                no-caps
+              >
+                <div class="flex items-center gap-2">
+                  <q-icon name="search" size="20px" />
+                  <span class="text-base">ค้นหา</span>
+                </div>
+              </q-btn>
             </div>
           </div>
 

Frontend-Learner/pages/classroom/learning.vue

@@ -90,6 +90,7 @@ const isPlaying = ref(false)
 const videoProgress = ref(0)
 const currentTime = ref(0)
 const duration = ref(0)
+const activeTab = ref('content')
 
 
 
@@ -604,60 +605,67 @@ onBeforeUnmount(() => {
 </script>
 
 <template>
-  <q-layout view="hHh LpR lFf" class="bg-[var(--bg-body)] text-[var(--text-main)]">
+  <q-layout view="hHh lpR lFf" class="bg-[var(--bg-body)] text-[var(--text-main)]">
     
     <!-- Header -->
-    <q-header bordered class="bg-[var(--bg-surface)] border-b border-gray-200 dark:border-white/5 text-[var(--text-main)] h-14">
-      <q-toolbar>
-        <!-- Exit/Back Button -->
-        <q-btn 
-          flat 
-          rounded
-          no-caps
-          color="primary"
-          class="mr-4 bg-slate-100 dark:bg-slate-800 text-slate-900 dark:text-white font-bold hover:bg-slate-200"
-          @click="handleExit('/dashboard/my-courses')"
-        >
-          <q-icon name="close" size="18px" class="mr-1.5" />
-          <span class="hidden sm:inline">{{ $t('common.close') }}</span>
-          <q-tooltip>{{ $t('classroom.backToDashboard') }}</q-tooltip>
-        </q-btn>
+    <q-header bordered class="bg-[var(--bg-surface)] border-b border-gray-200 dark:border-white/5 text-[var(--text-main)] h-16">
+      <q-toolbar class="h-full px-4">
+        <!-- 1. Left Side: Back & Title -->
+        <div class="flex items-center gap-4 flex-grow overflow-hidden">
+            <!-- Back Button -->
+            <q-btn 
+              flat 
+              round
+              dense
+              color="primary"
+              class="bg-slate-100 dark:bg-slate-800 text-slate-900 dark:text-white hover:bg-slate-200 dark:hover:bg-slate-700 transition-colors"
+              @click="handleExit('/dashboard/my-courses')"
+            >
+              <q-icon name="arrow_back" size="20px" />
+              <q-tooltip>{{ $t('classroom.backToDashboard') }}</q-tooltip>
+            </q-btn>
+            
+            <!-- Course Title -->
+            <div class="flex flex-col">
 
-        <!-- Sidebar Toggle (Clearer for Course Content) -->
-        <q-btn 
-          flat 
-          rounded 
-          no-caps 
-          class="mr-2 text-slate-900 dark:text-white hover:bg-slate-100 dark:hover:bg-slate-800 transition-colors font-bold px-3" 
-          @click="toggleSidebar"
-        >
-           <q-icon name="format_list_bulleted" size="18px" class="mr-1.5" />
-           <span class="hidden md:inline">{{ $t('classroom.curriculum') }}</span>
-        </q-btn>
-        
-        <q-toolbar-title class="text-base font-bold text-left truncate text-slate-900 dark:text-white">
-           {{ courseData ? getLocalizedText(courseData.course.title) : $t('classroom.loadingTitle') }}
-        </q-toolbar-title>
+                <h1 class="text-base md:text-lg font-bold text-slate-900 dark:text-white truncate max-w-[200px] md:max-w-md leading-tight">
+                    {{ courseData ? getLocalizedText(courseData.course.title) : $t('classroom.loadingTitle') }}
+                </h1>
+            </div>
+        </div>
 
-        <div class="flex items-center gap-2 pr-2">
-           <!-- Announcements Button -->
+        <!-- 2. Right Side: Actions -->
+        <div class="flex items-center gap-3">
+           <!-- Sidebar Toggle (Right Side) -->
+           <q-btn 
+              flat 
+              round 
+              dense 
+              class="text-slate-500 dark:text-slate-400 hover:bg-slate-100 dark:hover:bg-slate-800 transition-colors" 
+              @click="toggleSidebar"
+            >
+               <q-icon name="menu_open" size="24px" class="transform rotate-180" />
+               <q-tooltip>{{ $t('classroom.curriculum') }}</q-tooltip>
+            </q-btn>
+
+           <!-- Announcements Button (Refined) -->
            <q-btn
              flat
              round
              dense
-             icon="campaign"
+             class="bg-slate-100 dark:bg-slate-800 text-slate-600 dark:text-slate-300 hover:text-blue-600 dark:hover:text-blue-400 hover:bg-blue-50 dark:hover:bg-slate-700 transition-all relative overflow-visible"
              @click="handleOpenAnnouncements"
-             class="text-slate-600 dark:text-slate-300 hover:text-blue-600 transition-colors"
            >
-             <q-badge v-if="hasUnreadAnnouncements" color="red" floating rounded />
+             <q-icon name="campaign" size="22px" />
+             <!-- Red Dot Notification -->
+             <span v-if="hasUnreadAnnouncements" class="absolute top-2 right-2 w-2.5 h-2.5 bg-rose-500 border-2 border-white dark:border-slate-900 rounded-full"></span>
              <q-tooltip>{{ $t('classroom.announcements') }}</q-tooltip>
            </q-btn>
         </div>
       </q-toolbar>
     </q-header>
 
-    <!-- Sidebar (Curriculum) -->
-    <!-- Sidebar (Curriculum) -->
+    <!-- Sidebar (Curriculum) - Positioned Right via component prop -->
     <CurriculumSidebar
       v-model="sidebarOpen"
       :courseData="courseData"
@@ -672,7 +680,7 @@ onBeforeUnmount(() => {
     <q-page-container class="bg-white dark:bg-slate-900">
       <q-page class="flex flex-col h-full bg-slate-50 dark:bg-[#0B0F1A]">
          <!-- Video Player & Content Area -->
-         <div class="w-full max-w-7xl mx-auto p-4 md:p-6 flex-grow">
+         <div class="w-full h-full p-4 md:p-6 flex-grow overflow-y-auto">
             <!-- 1. LOADING STATE (Comprehensive Skeleton) -->
             <div v-if="isLessonLoading" class="animate-fade-in">
                 <!-- Video Skeleton -->

Frontend-Learner/pages/dashboard/index.vue

@@ -5,231 +5,398 @@
  */
 
 definePageMeta({
-  layout: 'default',
-  middleware: 'auth'
-})
+  layout: "default",
+  middleware: "auth",
+});
 
 useHead({
-  title: 'Dashboard - FutureSkill Clone'
-})
+  title: "Dashboard - FutureSkill Clone",
+});
 
-const { currentUser } = useAuth()
-const { fetchCourses, fetchEnrolledCourses, getLocalizedText } = useCourse()
-const { fetchCategories } = useCategory()
-const { t } = useI18n()
+const { currentUser } = useAuth();
+const { fetchCourses, fetchEnrolledCourses, getLocalizedText } = useCourse();
+const { fetchCategories } = useCategory();
+const { t } = useI18n();
 
 // State
-const enrolledCourses = ref<any[]>([])
-const recommendedCourses = ref<any[]>([])
-const libraryCourses = ref<any[]>([])
-const categories = ref<any[]>([])
+const enrolledCourses = ref<any[]>([]);
+const recommendedCourses = ref<any[]>([]);
+const libraryCourses = ref<any[]>([]);
+const categories = ref<any[]>([]);
 
-const isLoading = ref(true)
+const isLoading = ref(true);
 
 // Initial Data Fetch
 onMounted(async () => {
-  isLoading.value = true
+  isLoading.value = true;
   try {
     const [catRes, enrollRes, courseRes] = await Promise.all([
       fetchCategories(),
-      fetchEnrolledCourses({ limit: 3, status: 'IN_PROGRESS' }), // Fetch recent enrolled
-      fetchCourses({ limit: 3, random: true, forceRefresh: true, is_recommended: true }) // Fetch 3 Recommended Courses
-    ])
+      fetchEnrolledCourses({ limit: 10 }), // Fetch more enrolled courses for library section
+      fetchCourses({
+        limit: 3,
+        random: true,
+        forceRefresh: true,
+        is_recommended: true,
+      }), // Fetch 3 Recommended Courses
+    ]);
 
     if (catRes.success) {
-      categories.value = catRes.data || []
+      categories.value = catRes.data || [];
     }
-    
-    const catMap = new Map()
-    categories.value.forEach((c: any) => catMap.set(c.id, c.name))
 
-    
+    const catMap = new Map();
+    categories.value.forEach((c: any) => catMap.set(c.id, c.name));
+
     // Map Enrolled Courses
     if (enrollRes.success && enrollRes.data) {
-       enrolledCourses.value = enrollRes.data.map((item: any) => ({
-         id: item.course_id,
-         title: item.course.title,
-         thumbnail_url: item.course.thumbnail_url,
-         progress: item.progress_percentage || 0,
-         total_lessons: item.course.total_lessons || 10,
-         completed_lessons: Math.floor((item.progress_percentage / 100) * (item.course.total_lessons || 10))
-       }))
+      // Sort by last_accessed_at descending (Newest first)
+      const sortedEnrollments = [...enrollRes.data].sort((a, b) => {
+        const dateA = new Date(a.last_accessed_at || a.enrolled_at).getTime();
+        const dateB = new Date(b.last_accessed_at || b.enrolled_at).getTime();
+        return dateB - dateA;
+      });
+
+      enrolledCourses.value = sortedEnrollments.map((item: any) => ({
+        id: item.course_id,
+        title: item.course.title,
+        thumbnail_url: item.course.thumbnail_url,
+        progress: item.progress_percentage || 0,
+        total_lessons: item.course.total_lessons || 10,
+        completed_lessons: Math.floor(
+          (item.progress_percentage / 100) * (item.course.total_lessons || 10),
+        ),
+        // For CourseCard compatibility in library section
+        category: catMap.get(item.course.category_id),
+        lessons: item.course.total_lessons || 0,
+        image: item.course.thumbnail_url,
+        enrolled: true,
+      }));
+
+      // Update libraryCourses with only 2 courses
+      libraryCourses.value = enrolledCourses.value.slice(0, 2);
     }
 
-    // Map Recommended/Library Courses
+    // Map Recommended Courses
     if (courseRes.success && courseRes.data) {
-       // Use fetched courses for recommended section
-       recommendedCourses.value = courseRes.data.map((c: any) => ({
-          id: c.id,
-          title: c.title,
-          category: catMap.get(c.category_id),
-          description: c.description,
-          lessons: c.total_lessons || 0,
-          image: c.thumbnail_url || '',
-          rating: c.rating, 
-          price: c.price, 
-          is_free: c.is_free
-       }))
-
-       // Just for demo, use same data for library if needed or fetch separately
-       libraryCourses.value = courseRes.data.slice(0, 2)
+      recommendedCourses.value = courseRes.data.map((c: any) => ({
+        id: c.id,
+        title: c.title,
+        category: catMap.get(c.category_id),
+        description: c.description,
+        lessons: c.total_lessons || 0,
+        image: c.thumbnail_url || "",
+        rating: c.rating,
+        price: c.price,
+        is_free: c.is_free,
+      }));
     }
-
   } catch (err) {
-    console.error('Failed to load dashboard data', err)
+    console.error("Failed to load dashboard data", err);
   } finally {
-    isLoading.value = false
+    isLoading.value = false;
   }
-})
+});
 
 // Helper for "Continue Learning" Hero Card
-const heroCourse = computed(() => enrolledCourses.value[0] || null)
-const sideCourses = computed(() => enrolledCourses.value.slice(1, 3))
-
+const heroCourse = computed(() => enrolledCourses.value[0] || null);
+const sideCourses = computed(() => enrolledCourses.value.slice(1, 3));
 </script>
 
 <template>
-  <div class="bg-[#F8F9FA] min-h-screen font-inter pb-20">
-    
+  <div class="bg-[#F8F9FA] dark:bg-[#020617] min-h-screen font-inter pb-20 transition-colors duration-300">
+    <div class="container mx-auto px-6 md:px-12 space-y-16 mt-10">
+      <!-- 1. Dashboard Hero Banner (Refined) -->
+      <section
+        class="relative overflow-hidden bg-gradient-to-br from-white to-slate-50 dark:from-slate-900 dark:to-slate-950 rounded-[2rem] py-10 md:py-14 px-8 md:px-12 shadow-sm border border-slate-100 dark:border-slate-800 flex flex-col items-center text-center transition-colors duration-300"
+      >
+        <!-- Subtle Decorative Elements -->
+        <div
+          class="absolute top-[-20%] left-[-10%] w-[300px] h-[300px] bg-blue-500/5 dark:bg-blue-500/10 rounded-full blur-3xl -z-10"
+        />
+        <div
+          class="absolute bottom-[-20%] right-[-10%] w-[300px] h-[300px] bg-indigo-500/5 dark:bg-indigo-500/10 rounded-full blur-3xl -z-10"
+        />
 
+        <div class="max-w-2xl space-y-6 relative z-10">
+          <h1
+            class="text-3xl md:text-4xl lg:text-5xl font-bold text-slate-900 dark:text-white leading-[1.5] tracking-tight"
+          >
+            {{ $t("dashboard.heroTitle") }}
+            <span class="inline-block text-blue-600 dark:text-blue-400 mt-1 md:mt-2">{{
+              $t("dashboard.heroSubtitle")
+            }}</span>
+          </h1>
 
-    <div class="max-w-7xl mx-auto px-4 md:px-12 space-y-16 mt-10">
+          <p
+            class="text-slate-500 dark:text-slate-400 font-medium text-base md:text-lg max-w-xl mx-auto leading-relaxed"
+          >
+            {{ $t("dashboard.heroDesc") }}
+          </p>
 
-        <!-- 2. Continue Learning Section -->
-        <section v-if="enrolledCourses.length > 0">
-            <div class="flex justify-between items-end mb-6">
-                 <h2 class="text-xl md:text-2xl font-bold text-[#2D2D2D]">เรียนต่อกับคอร์สของคุณ</h2>
-                 <NuxtLink to="/dashboard/my-courses" class="text-blue-600 hover:text-blue-700 font-medium text-sm flex items-center gap-1">
-                    คอร์สเรียนของฉัน <q-icon name="arrow_forward" size="16px" />
-                 </NuxtLink>
-            </div>
+          <div class="flex flex-wrap justify-center gap-4 pt-4">
+            <q-btn
+              unelevated
+              rounded
+              color="primary"
+              :label="$t('dashboard.goToMyCourses')"
+              class="px-8 h-[48px] font-bold no-caps shadow-lg shadow-blue-500/10 hover:-translate-y-0.5 transition-all text-sm"
+              to="/dashboard/my-courses"
+            />
+            <q-btn
+              outline
+              rounded
+              color="primary"
+              :label="$t('dashboard.searchNewCourses')"
+              class="px-8 h-[48px] font-bold no-caps hover:bg-white dark:hover:bg-slate-800 transition-all border-1 text-sm dark:text-white dark:border-slate-600"
+              style="border-width: 1.5px"
+              to="/browse/discovery"
+            />
+          </div>
+        </div>
+      </section>
 
-            <div class="grid grid-cols-1 lg:grid-cols-2 gap-6">
-                <!-- Hero Card (Left) -->
-                <div v-if="heroCourse" class="relative group cursor-pointer rounded-2xl overflow-hidden bg-white shadow-sm border border-gray-100 hover:shadow-md transition-all h-[320px]">
-                    <img :src="heroCourse.thumbnail_url" class="w-full h-full object-cover brightness-75 group-hover:brightness-90 transition-all duration-500" />
-                    
-                    <div class="absolute inset-0 bg-gradient-to-t from-black/80 via-black/30 to-transparent p-8 flex flex-col justify-end">
-                        <div class="bg-blue-600 text-white text-xs font-bold px-3 py-1 rounded w-fit mb-3">COURSE</div>
-                        <h3 class="text-white text-2xl font-bold mb-4 line-clamp-2 leading-snug">{{ getLocalizedText(heroCourse.title) }}</h3>
-                        
-                        <!-- Progress -->
-                        <div class="w-full">
-                            <div class="flex justify-end text-gray-300 text-xs mb-2">
-                                <span>{{ heroCourse.progress }}%</span>
-                            </div>
-                            <div class="h-1.5 w-full bg-white/20 rounded-full overflow-hidden">
-                                <div class="h-full bg-blue-500 rounded-full" :style="{ width: `${heroCourse.progress}%` }"></div>
-                            </div>
-                            <div class="mt-4 flex justify-end">
-                                <span class="text-white font-bold text-sm hover:underline">{{ heroCourse.progress === 100 ? 'เรียนอีกครั้ง' : 'เรียนต่อ' }}</span>
-                            </div>
-                        </div>
-                    </div>
+      <!-- 2. Continue Learning Section -->
+      <section v-if="enrolledCourses.length > 0">
+        <div class="flex justify-between items-end mb-6">
+          <h2 class="text-xl md:text-2xl font-bold text-[#2D2D2D] dark:text-white transition-colors">
+            {{ $t("dashboard.continueLearningTitle") }}
+          </h2>
+          <NuxtLink
+            to="/dashboard/my-courses"
+            class="text-blue-600 hover:text-blue-700 dark:text-blue-400 dark:hover:text-blue-300 font-medium text-sm flex items-center gap-1 transition-colors"
+          >
+            {{ $t("dashboard.myCourses") }}
+            <q-icon name="arrow_forward" size="16px" />
+          </NuxtLink>
+        </div>
+
+        <div class="grid grid-cols-1 lg:grid-cols-2 gap-6 items-start">
+          <!-- Hero Card (Left) -->
+          <div
+            v-if="heroCourse"
+            class="relative group cursor-pointer rounded-2xl overflow-hidden bg-white dark:bg-[#1e293b] shadow-sm border border-gray-100 dark:border-slate-700 hover:shadow-md transition-all h-[260px] md:h-[320px]"
+            @click="
+              navigateTo(`/classroom/learning?course_id=${heroCourse.id}`)
+            "
+          >
+            <img
+              :src="heroCourse.thumbnail_url"
+              class="w-full h-full object-cover brightness-75 group-hover:brightness-90 transition-all duration-500"
+            />
+
+            <div
+              class="absolute inset-0 bg-gradient-to-t from-black/80 via-black/30 to-transparent p-8 flex flex-col justify-end"
+            >
+              <h3
+                class="text-white text-2xl font-bold mb-4 line-clamp-2 leading-snug shadow-black/50 drop-shadow-sm"
+              >
+                {{ getLocalizedText(heroCourse.title) }}
+              </h3>
+
+              <!-- Progress -->
+              <div class="w-full">
+                <div class="flex justify-end text-gray-300 text-xs mb-2">
+                  <span>{{ heroCourse.progress }}%</span>
                 </div>
-
-                <!-- Side List (Right) -->
-                <div class="flex flex-col gap-4 h-[320px]">
-                    <div v-for="course in sideCourses" :key="course.id" class="flex-1 bg-white rounded-2xl p-4 border border-gray-100 shadow-sm hover:shadow-md transition-all flex gap-4 items-center">
-                        <div class="w-32 h-20 rounded-xl overflow-hidden flex-shrink-0">
-                            <img :src="course.thumbnail_url" class="w-full h-full object-cover" />
-                        </div>
-                        <div class="flex-grow min-w-0 flex flex-col justify-between h-full py-1">
-                             <h4 class="text-gray-800 font-bold text-sm line-clamp-2 mb-2">{{ getLocalizedText(course.title) }}</h4>
-                             
-                             <div class="mt-auto">
-                                <div class="h-1.5 w-full bg-gray-100 rounded-full overflow-hidden mb-2">
-                                    <div class="h-full bg-blue-600 rounded-full" :style="{ width: `${course.progress}%` }"></div>
-                                </div>
-                                <div class="flex justify-end items-center text-xs">
-                                    <span class="text-blue-600 font-bold cursor-pointer hover:underline" @click="navigateTo(`/classroom/learning?course_id=${course.id}`)">{{ course.progress === 100 ? 'เรียนอีกครั้ง' : 'เรียนต่อ' }}</span>
-                                </div>
-                             </div>
-                        </div>
-                    </div>
-                     <!-- Empty State Placeholder if less than 2 side courses -->
-                    <div v-if="sideCourses.length < 2" class="flex-1 bg-gray-50 rounded-2xl border border-dashed border-gray-200 flex items-center justify-center text-gray-400 text-sm">
-                        เริ่มเรียนคอร์สใหม่ๆ เพื่อเติมเต็มส่วนนี้
-                    </div>
-                </div>
-            </div>
-        </section>
-
-        <!-- 3. Knowledge Library -->
-        <section>
-             <div class="mb-6">
-                 <h2 class="text-xl md:text-2xl font-bold text-[#2D2D2D] mb-1">คลังความรู้</h2>
-                 <p class="text-gray-500 text-sm">คุณสามารถเลือกเรียนคอร์สเรียนที่คุณเป็นเจ้าของ</p>
-            </div>
-
-            <!-- Content when courses exist -->
-            <div v-if="libraryCourses.length > 0" class="grid grid-cols-1 md:grid-cols-3 gap-6">
-                <!-- Course Cards -->
-                <CourseCard 
-                  v-for="course in libraryCourses" 
-                  :key="course.id"
-                  v-bind="course"
-                  :image="course.thumbnail_url"
-                  class="h-full md:col-span-1"
-                />
-
-                <!-- CTA Card (Large) -->
-                <div class="bg-white rounded-3xl border border-gray-100 shadow-sm p-8 flex flex-col items-center justify-center text-center h-full min-h-[300px] hover:shadow-md transition-all group">
-                     <p class="text-gray-600 font-medium mb-6 mt-4">เลือกเรียนคอร์สในคลังความรู้ของคุณ</p>
-                     <q-btn
-                        flat
-                        rounded
-                        no-caps
-                        class="text-blue-600 hover:bg-blue-50 px-6 py-2 font-bold group-hover:scale-105 transition-transform"
-                        to="/dashboard/my-courses"
-                     >
-                        ดูทั้งหมด <q-icon name="arrow_forward" size="18px" class="ml-2" />
-                     </q-btn>
-                </div>
-            </div>
-
-            <!-- Empty State when no courses -->
-            <div v-else class="bg-white rounded-3xl border border-dashed border-gray-200 p-12 flex flex-col items-center justify-center text-center min-h-[300px]">
-                <div class="bg-blue-50 p-6 rounded-full mb-6">
-                    <q-icon name="school" size="48px" class="text-blue-200" />
-                </div>
-                <h3 class="text-xl font-bold text-gray-800 mb-2">ยังไม่มีคอร์สเรียนในคลัง</h3>
-                <p class="text-gray-500 mb-8 max-w-md">เริ่มเรียนรู้สิ่งใหม่ๆ วันนี้ เลือกดูคอร์สเรียนที่น่าสนใจเพื่อพัฒนาทักษะของคุณ</p>
-                <q-btn
-                    unelevated
-                    rounded
-                    no-caps
-                    class="bg-blue-600 text-white px-8 py-3 font-bold hover:bg-blue-700 shadow-lg shadow-blue-500/20 transition-all hover:scale-105"
-                    to="/browse/discovery"
+                <div
+                  class="h-1.5 w-full bg-white/20 rounded-full overflow-hidden"
                 >
-                    ดูคอร์สเรียนทั้งหมด
-                </q-btn>
+                  <div
+                    class="h-full rounded-full transition-all duration-500"
+                    :class="
+                      heroCourse.progress === 100
+                        ? 'bg-emerald-500'
+                        : 'bg-blue-500'
+                    "
+                    :style="{ width: `${heroCourse.progress}%` }"
+                  ></div>
+                </div>
+                <div class="mt-4 flex justify-end">
+                  <span
+                    class="font-bold text-sm hover:underline transition-colors"
+                    :class="
+                      heroCourse.progress === 100
+                        ? 'text-emerald-400'
+                        : 'text-white'
+                    "
+                  >
+                    {{
+                      heroCourse.progress === 100
+                        ? $t("dashboard.studyAgain")
+                        : $t("dashboard.continue")
+                    }}
+                  </span>
+                </div>
+              </div>
             </div>
-        </section>
+          </div>
 
-
-
-        <!-- 5. Recommended Courses -->
-        <section class="pb-20">
-             <div class="mb-6">
-                 <h2 class="text-xl md:text-2xl font-bold text-[#2D2D2D] text-left">คอร์สแนะนำ</h2>
-            </div>
-
-            <!-- Recommended Grid (3 columns) -->
-            <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-6 animate-fade-in">
-                <CourseCard 
-                  v-for="course in recommendedCourses" 
-                  :key="course.id" 
-                  v-bind="course"
+          <!-- Side List (Right) -->
+          <div class="flex flex-col gap-4">
+            <div
+              v-for="course in sideCourses"
+              :key="course.id"
+              class="flex-1 bg-white dark:!bg-slate-900/40 rounded-2xl p-4 border border-slate-100 dark:border-white/5 shadow-sm hover:shadow-md transition-all flex gap-4 items-center"
+            >
+              <div class="w-32 h-20 rounded-xl overflow-hidden flex-shrink-0">
+                <img
+                  :src="course.thumbnail_url"
+                  class="w-full h-full object-cover"
                 />
-            </div>
-            
-             <!-- Loading State -->
-            <div v-if="recommendedCourses.length === 0 && !isLoading" class="flex justify-center py-10 opacity-50">
-               <div class="text-gray-400">ไม่พบข้อมูลคอร์สแนะนำ</div>
-            </div>
-        </section>
+              </div>
+              <div
+                class="flex-grow min-w-0 flex flex-col justify-between h-full py-1"
+              >
+                <h4 class="text-gray-800 dark:text-slate-200 font-bold text-sm line-clamp-2 mb-2 transition-colors">
+                  {{ getLocalizedText(course.title) }}
+                </h4>
 
+                <div class="mt-auto">
+                  <div
+                    class="h-1.5 w-full bg-gray-100 dark:bg-slate-700 rounded-full overflow-hidden mb-2"
+                  >
+                    <div
+                      class="h-full rounded-full transition-all duration-500"
+                      :class="
+                        course.progress === 100
+                          ? 'bg-emerald-500'
+                          : 'bg-blue-600'
+                      "
+                      :style="{ width: `${course.progress}%` }"
+                    ></div>
+                  </div>
+                  <div class="flex justify-end items-center text-xs">
+                    <span
+                      class="font-bold cursor-pointer hover:underline transition-colors"
+                      :class="
+                        course.progress === 100
+                          ? 'text-emerald-600 dark:text-emerald-400'
+                          : 'text-blue-600 dark:text-blue-400'
+                      "
+                      @click="
+                        navigateTo(`/classroom/learning?course_id=${course.id}`)
+                      "
+                    >
+                      {{
+                        course.progress === 100
+                          ? $t("dashboard.studyAgain")
+                          : $t("dashboard.continue")
+                      }}
+                    </span>
+                  </div>
+                </div>
+              </div>
+            </div>
+            <!-- Empty State Placeholder if less than 2 side courses -->
+            <div
+              v-if="sideCourses.length < 2"
+              class="flex-1 bg-slate-50 dark:!bg-slate-900/30 rounded-2xl border border-dashed border-slate-200 dark:border-slate-800 flex items-center justify-center text-slate-400 dark:text-slate-600 text-sm transition-colors"
+            >
+              {{ $t("dashboard.startNewCourse") }}
+            </div>
+          </div>
+        </div>
+      </section>
+
+      <!-- 3. Knowledge Library -->
+      <section>
+        <div class="mb-6">
+          <h2 class="text-xl md:text-2xl font-bold text-[#2D2D2D] dark:text-white mb-1 transition-colors">
+            {{ $t("dashboard.knowledgeLibrary") }}
+          </h2>
+          <p class="text-gray-500 dark:text-slate-400 text-sm transition-colors">
+            {{ $t("dashboard.libraryDesc") }}
+          </p>
+        </div>
+
+        <!-- Content when courses exist -->
+        <div
+          v-if="libraryCourses.length > 0"
+          class="grid grid-cols-1 sm:grid-cols-2 md:grid-cols-3 gap-6"
+        >
+          <!-- Course Cards -->
+          <CourseCard
+            v-for="course in libraryCourses"
+            :key="course.id"
+            v-bind="course"
+            :image="course.thumbnail_url"
+            hide-progress
+            hide-actions
+            class="h-full md:col-span-1"
+          />
+
+          <div
+            class="bg-white dark:!bg-slate-900/40 rounded-3xl border border-slate-100 dark:border-white/5 shadow-sm p-8 flex flex-col items-center justify-center text-center h-full min-h-[300px] hover:shadow-md transition-all group"
+          >
+            <p class="text-gray-600 dark:text-slate-300 font-medium mb-6 mt-4 transition-colors">
+              {{ $t("dashboard.chooseLibrary") }}
+            </p>
+            <q-btn
+              flat
+              rounded
+              no-caps
+              class="text-blue-600 hover:bg-blue-50 dark:text-blue-400 dark:hover:bg-blue-900/30 px-6 py-2 font-bold group-hover:scale-105 transition-transform"
+              to="/dashboard/my-courses"
+            >
+              {{ $t("dashboard.viewAll") }}
+              <q-icon name="arrow_forward" size="18px" class="ml-2" />
+            </q-btn>
+          </div>
+        </div>
+
+        <div
+          v-else
+          class="bg-white dark:!bg-slate-900/40 rounded-3xl border border-dashed border-slate-200 dark:border-slate-800 p-12 flex flex-col items-center justify-center text-center min-h-[300px] transition-colors"
+        >
+          <div class="bg-blue-50 dark:bg-blue-900/20 p-6 rounded-full mb-6 transition-colors">
+            <q-icon name="school" size="48px" class="text-blue-200 dark:text-blue-400" />
+          </div>
+          <h3 class="text-xl font-bold text-gray-800 dark:text-white mb-2 transition-colors">
+            {{ $t("dashboard.emptyLibraryTitle") }}
+          </h3>
+          <p class="text-gray-500 dark:text-slate-400 mb-8 max-w-md transition-colors">
+            {{ $t("dashboard.emptyLibraryDesc") }}
+          </p>
+          <q-btn
+            unelevated
+            rounded
+            no-caps
+            class="bg-blue-600 text-white px-8 py-3 font-bold hover:bg-blue-700 shadow-lg shadow-blue-500/20 transition-all hover:scale-105"
+            to="/browse/discovery"
+          >
+            {{ $t("dashboard.viewAllCourses") }}
+          </q-btn>
+        </div>
+      </section>
+
+      <!-- 5. Recommended Courses -->
+      <section class="pb-20">
+        <div class="mb-6">
+          <h2 class="text-xl md:text-2xl font-bold text-[#2D2D2D] dark:text-white text-left transition-colors">
+            {{ $t("dashboard.recommendedCourses") }}
+          </h2>
+        </div>
+
+        <!-- Recommended Grid (3 columns) -->
+        <div
+          class="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-3 gap-6 animate-fade-in"
+        >
+          <CourseCard
+            v-for="course in recommendedCourses"
+            :key="course.id"
+            v-bind="course"
+          />
+        </div>
+
+        <!-- Loading State -->
+        <div
+          v-if="recommendedCourses.length === 0 && !isLoading"
+          class="flex justify-center py-10 opacity-50"
+        >
+          <div class="text-gray-400 dark:text-slate-500">{{ $t("dashboard.noRecommended") }}</div>
+        </div>
+      </section>
     </div>
   </div>
 </template>
@@ -240,11 +407,17 @@ const sideCourses = computed(() => enrolledCourses.value.slice(1, 3))
   animation: fadeIn 0.5s ease-out;
 }
 @keyframes fadeIn {
-  from { opacity: 0; transform: translateY(10px); }
-  to { opacity: 1; transform: translateY(0); }
+  from {
+    opacity: 0;
+    transform: translateY(10px);
+  }
+  to {
+    opacity: 1;
+    transform: translateY(0);
+  }
 }
 
 :deep(.q-btn) {
-    text-transform: none; /* Prevent uppercase in Q-Btns */
+  text-transform: none; /* Prevent uppercase in Q-Btns */
 }
 </style>

Frontend-Learner/pages/dashboard/my-courses.vue

@@ -11,8 +11,10 @@ definePageMeta({
   middleware: 'auth'
 })
 
+const { t, locale } = useI18n()
+
 useHead({
-  title: 'คอร์สของฉัน - e-Learning'
+  title: `${t('sidebar.myCourses')} - e-Learning`
 })
 
 const route = useRoute()
@@ -28,7 +30,6 @@ onMounted(() => {
   }
 })
 
-const { locale } = useI18n()
 
 // Helper to get localized text
 const getLocalizedText = (text: string | { th: string; en: string } | undefined) => {
@@ -151,33 +152,43 @@ const validCourseId = computed(() => {
 
 
     <!-- Page Header & Filters (Unified Layout) -->
-    <div class="flex flex-col gap-6 mb-10">
-       <div class="flex flex-col md:flex-row md:items-center justify-between gap-6">
-          <h1 class="text-3xl font-black text-slate-900 dark:text-white flex items-center gap-3">
-            <span class="w-1.5 h-8 bg-blue-600 rounded-full shadow-sm shadow-blue-500/50"></span>
-            {{ $t('sidebar.myCourses') }}
-          </h1>
-
-          <!-- Search Input -->
-          <div class="flex items-center gap-3 w-full md:w-auto">
-            <q-input
-              v-model="searchQuery"
-              dense
-              outlined
-              rounded
-              :placeholder="$t('discovery.searchPlaceholder')"
-              class="w-full md:w-72 search-input shadow-sm"
-              bg-color="transparent"
-            >
-              <template v-slot:prepend>
-                <q-icon name="search" class="text-slate-400" />
-              </template>
-            </q-input>
+    <!-- New Enhanced Search Section (Image 2 Style) -->
+    <div class="bg-blue-50/50 dark:bg-blue-900/10 rounded-[2.5rem] p-8 md:p-10 mb-6 border border-blue-100/50 dark:border-blue-500/10">
+      <h2 class="text-2xl md:text-3xl font-black text-slate-900 dark:text-white mb-2">{{ $t('myCourses.title') }}</h2>
+      <p class="text-slate-500 dark:text-slate-400 font-medium mb-8">{{ $t('myCourses.subtitle') }}</p>
+      
+      <div class="flex flex-col md:flex-row gap-4">
+        <!-- Search Input -->
+        <div class="relative flex-1 group">
+          <div class="absolute left-5 top-1/2 -translate-y-1/2 text-slate-400 group-focus-within:text-blue-600 transition-colors">
+            <q-icon name="search" size="24px" />
           </div>
-       </div>
+          <input 
+            v-model="searchQuery"
+            type="text" 
+            :placeholder="$t('myCourses.searchPlaceholder')"
+            class="w-full pl-14 pr-6 py-3.5 bg-white dark:!bg-slate-900/80 border-2 border-transparent dark:border-white/5 rounded-2xl text-slate-900 dark:text-white placeholder-slate-400 focus:outline-none focus:border-blue-500/20 focus:ring-4 focus:ring-blue-500/5 transition-all text-base font-medium shadow-sm"
+          />
+        </div>
+        
+        <!-- Search Button -->
+        <q-btn 
+          unelevated
+          color="primary"
+          class="px-8 h-[52px] rounded-2xl font-black shadow-lg shadow-blue-600/20 hover:scale-[1.02] transition-transform"
+          no-caps
+        >
+          <div class="flex items-center gap-2">
+            <q-icon name="search" size="20px" />
+            <span class="text-base">{{ $t("discovery.searchBtn") }}</span>
+          </div>
+        </q-btn>
+      </div>
+    </div>
 
+    <div class="flex flex-col md:flex-row md:items-center justify-between gap-4 mb-12">
        <!-- Filter Tabs (Horizontal Bar) -->
-       <div class="flex flex-wrap items-center gap-2">
+       <div class="bg-white dark:!bg-slate-900/50 p-1.5 rounded-2xl border border-slate-100 dark:border-white/5 inline-flex items-center gap-1 shadow-sm">
          <q-btn
            v-for="filter in ['all', 'progress', 'completed']"
            :key="filter"
@@ -185,8 +196,8 @@ const validCourseId = computed(() => {
            flat
            rounded
            dense
-           class="px-4 font-bold transition-all text-xs uppercase tracking-widest"
-           :class="activeFilter === filter ? 'bg-blue-600 text-white shadow-lg shadow-blue-600/30' : 'bg-white dark:bg-slate-800 text-slate-500 dark:text-slate-400 border border-slate-200 dark:border-white/5'"
+           class="px-5 py-2 font-bold transition-all text-[11px] uppercase tracking-wider"
+           :class="activeFilter === filter ? 'bg-blue-600 text-white shadow-md shadow-blue-600/20' : 'text-slate-600 dark:text-slate-400 hover:bg-slate-50 dark:!hover:bg-slate-800/50'"
            :label="$t(`myCourses.filter${filter.charAt(0).toUpperCase() + filter.slice(1)}`)"
          />
        </div>
@@ -196,7 +207,7 @@ const validCourseId = computed(() => {
     <div v-if="isLoading" class="flex justify-center py-20">
        <q-spinner size="3rem" color="primary" />
     </div>
-    <div v-else class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-8">
+    <div v-else class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-6">
       <template v-for="course in filteredEnrolledCourses" :key="course.id">
         <!-- In Progress Course Card -->
         <CourseCard 
@@ -226,7 +237,7 @@ const validCourseId = computed(() => {
     </div>
 
     <!-- Empty State -->
-    <div v-if="!isLoading && filteredEnrolledCourses.length === 0" class="flex flex-col items-center justify-center py-20 bg-slate-50 dark:bg-slate-800/50 rounded-3xl border-2 border-dashed border-slate-200 dark:border-slate-700 mt-4">
+    <div v-if="!isLoading && enrolledCourses.length === 0" class="flex flex-col items-center justify-center py-20 bg-white dark:!bg-slate-900/40 rounded-3xl border border-dashed border-slate-200 dark:border-white/5 mt-4">
       <q-icon v-if="searchQuery" name="search_off" size="64px" class="text-slate-300 dark:text-slate-600 mb-4" />
       <h3 class="text-xl font-bold text-slate-900 dark:text-white mb-2">
         {{ searchQuery ? $t('discovery.emptyTitle') : $t('myCourses.emptyTitle') }}

Frontend-Learner/pages/dashboard/profile.vue

@@ -15,6 +15,7 @@ const { locale, t } = useI18n()
 
 
 const isEditing = ref(false)
+const activeTab = ref<'general' | 'security'>('general')
 const isProfileSaving = ref(false)
 const isPasswordSaving = ref(false)
 const isSendingVerify = ref(false)
@@ -202,22 +203,25 @@ onMounted(async () => {
 </script>
 
 <template>
-  <div class="page-container">
+  <div class="page-container bg-[#F8F9FA] dark:bg-[#020617] min-h-screen transition-colors duration-300">
     
-    <div class="flex items-center justify-between mb-8 md:mb-10">
+    <div class="flex items-center justify-between mb-8">
       <div class="flex items-center gap-4">
         <q-btn
           v-if="isHydrated && isEditing"
           flat
           round
           icon="arrow_back"
-          color="slate-700"
-          class="dark:text-white"
+          class="text-slate-600 dark:text-white hover:bg-slate-100 dark:hover:bg-slate-800"
           @click="toggleEdit(false)"
         />
-        <h1 class="text-3xl font-black text-slate-900 dark:text-white">
-          {{ (isHydrated && isEditing) ? $t('profile.editProfile') : $t('profile.myProfile') }}
-        </h1>
+        <div class="flex items-start gap-4">
+          <div>
+            <h1 class="text-3xl md:text-4xl font-black text-slate-900 dark:text-white leading-tight">
+              {{ (isHydrated && isEditing) ? $t('profile.editProfile') : $t('profile.myProfile') }}
+            </h1>
+          </div>
+        </div>
       </div>
 
       <div class="min-h-9 flex items-center">
@@ -226,7 +230,7 @@ onMounted(async () => {
           unelevated
           rounded
           color="primary"
-          class="font-bold"
+          class="font-bold shadow-lg shadow-blue-500/20"
           icon="edit"
           :label="$t('profile.editProfile')"
           @click="toggleEdit(true)"
@@ -242,61 +246,124 @@ onMounted(async () => {
        <q-spinner size="3rem" color="primary" />
     </div>
 
-    <div v-else>
-      <div v-if="!isEditing" class="card-premium overflow-hidden fade-in">
-        <div class="bg-gradient-to-r from-blue-600 to-indigo-600 h-32 w-full"/>
-        <div class="px-8 pb-10 -mt-16">
-          <div class="flex flex-col md:flex-row items-end gap-6 mb-10">
-            <div class="relative flex-shrink-0">
+    <div v-else class="max-w-4xl mx-auto pb-20">
+      
+      <!-- VIEW MODE: Premium Card with Banner -->
+      <div v-if="!isEditing" class="bg-white dark:!bg-slate-900/50 border border-slate-200 dark:border-white/5 rounded-3xl shadow-xl dark:shadow-none overflow-hidden fade-in min-h-[500px] flex flex-col transition-colors duration-300">
+        
+        <!-- Identity Header (Banner & Avatar) -->
+        <div class="relative">
+          <div class="h-40 bg-gradient-to-r from-blue-700 via-blue-600 to-indigo-700 relative overflow-hidden">
+             <!-- Abstract Patterns -->
+             <div class="absolute inset-0 opacity-10">
+                <div class="absolute -top-10 -right-10 w-64 h-64 rounded-full bg-white blur-3xl"></div>
+                <div class="absolute -bottom-10 -left-10 w-48 h-48 rounded-full bg-indigo-300 blur-3xl"></div>
+             </div>
+          </div>
+          
+          <div class="px-8 md:px-12 flex flex-col md:flex-row items-center md:items-end gap-8 md:gap-12 -mt-12 pb-8 relative z-10">
+            <div class="relative group flex-shrink-0">
               <UserAvatar 
                 :photo-u-r-l="userData.photoURL" 
                 :first-name="userData.firstName" 
                 :last-name="userData.lastName" 
-                size="128"
-                class="border-4 border-white dark:border-[#1e293b] shadow-2xl bg-slate-800"
+                size="140"
+                class="border-[6px] border-white dark:border-slate-900 shadow-2xl rounded-[2.5rem] bg-white dark:bg-slate-800 transition-colors duration-300"
               />
-
             </div>
-            <div class="pb-2">
-              <h2 class="text-3xl font-black text-slate-900 dark:text-white mb-1">{{ userData.firstName }} {{ userData.lastName }}</h2>
-              <p class="text-slate-500 dark:text-slate-400 font-medium">{{ userData.email }}</p>
-            </div>
-          </div>
-
-          <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-8">
-            <div class="info-group">
-              <span class="label">{{ $t('profile.phone') }}</span>
-              <p class="value">{{ userData.phone || '-' }}</p>
-            </div>
-            <div class="info-group">
-              <span class="label">{{ $t('profile.joinedAt') }}</span>
-              <p class="value">{{ formatDate(userData.createdAt) }}</p>
+            
+            <div class="text-center md:text-left pt-4 md:pt-0 flex-grow min-w-0">
+              <h2 class="text-3xl md:text-4xl font-black text-slate-900 dark:text-white mb-2 leading-tight tracking-tight break-words">
+                {{ userData.firstName }} {{ userData.lastName }}
+              </h2>
+              <div class="flex flex-wrap items-center justify-center md:justify-start gap-4">
+                  <div class="flex items-center gap-2 text-slate-500 dark:text-slate-400 font-bold bg-slate-50 dark:bg-slate-900/50 px-3 py-1.5 rounded-xl border border-slate-100 dark:border-white/5">
+                      <q-icon name="alternate_email" size="xs" class="text-blue-500" />
+                      <span class="text-sm">{{ userData.email }}</span>
+                  </div>
+                  <div class="flex items-center gap-2 text-slate-500 dark:text-slate-400 font-bold bg-slate-50 dark:bg-slate-900/50 px-3 py-1.5 rounded-xl border border-slate-100 dark:border-white/5">
+                      <q-icon name="verified_user" size="xs" :class="userData.emailVerifiedAt ? 'text-green-500' : 'text-amber-500'" />
+                      <span class="text-sm">{{ userData.emailVerifiedAt ? $t('profile.emailVerified') : $t('profile.verifyEmail') }}</span>
+                  </div>
+              </div>
             </div>
           </div>
         </div>
+
+        <!-- View Details Content -->
+        <div class="p-8 md:p-12 flex-grow">
+           <div class="max-w-3xl mx-auto h-full fade-in">
+              <h3 class="text-sm font-black text-slate-700 dark:text-slate-300 uppercase tracking-widest flex items-center gap-2 mb-8">
+                 <span class="w-2 h-2 bg-blue-600 rounded-full"></span> {{ $t('profile.accountDetails') }}
+              </h3>
+              <div class="grid grid-cols-1 md:grid-cols-2 gap-x-12 gap-y-8">
+                 <div class="flex items-center gap-4 group">
+                    <div class="w-12 h-12 rounded-2xl bg-blue-50 dark:bg-blue-900/20 flex items-center justify-center text-blue-600 dark:text-blue-400 group-hover:scale-110 transition-transform">
+                       <q-icon name="smartphone" size="24px" />
+                    </div>
+                    <div>
+                       <div class="text-[10px] font-black text-slate-500 dark:text-slate-400 uppercase tracking-wider mb-0.5">{{ $t('profile.phone') }}</div>
+                       <div class="text-lg font-bold text-slate-900 dark:text-white tracking-tight">{{ userData.phone || '-' }}</div>
+                    </div>
+                 </div>
+                 <div class="flex items-center gap-4 group">
+                    <div class="w-12 h-12 rounded-2xl bg-indigo-50 dark:bg-indigo-900/20 flex items-center justify-center text-indigo-600 dark:text-indigo-400 group-hover:scale-110 transition-transform">
+                       <q-icon name="calendar_today" size="24px" />
+                    </div>
+                    <div>
+                       <div class="text-[10px] font-black text-slate-500 dark:text-slate-400 uppercase tracking-wider mb-0.5">{{ $t('profile.joinedAt') }}</div>
+                       <div class="text-lg font-bold text-slate-900 dark:text-white tracking-tight">{{ formatDate(userData.createdAt) }}</div>
+                    </div>
+                 </div>
+              </div>
+           </div>
+        </div>
       </div>
 
-
-
-      <div v-else class="grid grid-cols-1 lg:grid-cols-2 gap-8 fade-in">
-        
-        <ProfileEditForm
-          v-model="userData"
-          :loading="isProfileSaving"
-          :verifying="isSendingVerify"
-          @submit="handleUpdateProfile"
-          @upload="handleFileUpload"
-          @verify="handleSendVerifyEmail"
-        />
-
-
-        <PasswordChangeForm
-          v-model="passwordForm"
-          :loading="isPasswordSaving"
-          @submit="handleUpdatePassword"
-        />
-
+      <!-- EDIT MODE: Tabs and Forms (Clean Layout) -->
+      <div v-else class="fade-in">
+          <!-- Tab Selector -->
+          <div class="flex justify-center mb-8">
+            <div class="bg-white dark:!bg-slate-900/50 p-1.5 rounded-2xl flex items-center gap-1 border border-slate-200 dark:border-white/5 shadow-sm">
+                <button 
+                  @click="activeTab = 'general'"
+                  class="px-6 md:px-8 py-3 rounded-xl font-black text-xs uppercase tracking-widest transition-all flex items-center gap-2"
+                  :class="activeTab === 'general' ? 'bg-blue-50 dark:bg-blue-900/30 text-blue-600 dark:text-blue-400 shadow-sm scale-100' : 'text-slate-500 dark:text-slate-400 hover:text-slate-700 dark:hover:text-slate-200 scale-95 opacity-70'"
+                >
+                  <q-icon name="person_outline" size="18px" /> {{ $t('profile.generalInfo') }}
+                </button>
+                <button 
+                  @click="activeTab = 'security'"
+                  class="px-6 md:px-8 py-3 rounded-xl font-black text-xs uppercase tracking-widest transition-all flex items-center gap-2"
+                  :class="activeTab === 'security' ? 'bg-blue-50 dark:bg-blue-900/30 text-blue-600 dark:text-blue-400 shadow-sm scale-100' : 'text-slate-500 dark:text-slate-400 hover:text-slate-700 dark:hover:text-slate-200 scale-95 opacity-70'"
+                >
+                  <q-icon name="lock_open" size="18px" /> {{ $t('profile.security') }}
+                </button>
+            </div>
+          </div>
+          
+          <!-- Edit Content -->
+          <div class="max-w-3xl mx-auto">
+              <div v-if="activeTab === 'general'" class="bg-white dark:!bg-slate-900/50 border border-slate-200 dark:border-white/5 rounded-3xl shadow-xl dark:shadow-none p-6 md:p-10">
+                  <ProfileEditForm
+                      v-model="userData"
+                      :loading="isProfileSaving"
+                      :verifying="isSendingVerify"
+                      @submit="handleUpdateProfile"
+                      @upload="handleFileUpload"
+                      @verify="handleSendVerifyEmail"
+                  />
+              </div>
+              <div v-else class="bg-white dark:!bg-slate-900/50 border border-slate-200 dark:border-white/5 rounded-3xl shadow-xl dark:shadow-none p-6 md:p-10">
+                  <PasswordChangeForm
+                      v-model="passwordForm"
+                      :loading="isPasswordSaving"
+                      @submit="handleUpdatePassword"
+                  />
+              </div>
+          </div>
       </div>
+      
     </div>
 
   </div>
@@ -307,57 +374,7 @@ onMounted(async () => {
   color: white;
 }
 
-.card-premium {
-  background-color: white;
-  border-color: #e2e8f0;
-  border-radius: 1.5rem;
-  border-width: 1px;
-  box-shadow: 0 10px 30px -5px rgba(0, 0, 0, 0.05);
-  transition: all 0.3s ease;
-}
-
-.dark .card-premium {
-  background-color: #1e293b;
-  border-color: rgba(255, 255, 255, 0.05);
-  box-shadow: 0 10px 30px -5px rgba(0, 0, 0, 0.3);
-}
-
-.info-group .label {
-  font-size: 0.75rem;
-  font-weight: 900;
-  text-transform: uppercase;
-  letter-spacing: 0.1em;
-  color: #64748b;
-  display: block;
-  margin-bottom: 0.5rem;
-}
-
-.dark .info-group .label {
-  color: #94a3b8;
-}
-
-.info-group .value {
-  font-size: 1.125rem;
-  font-weight: 700;
-  color: #0f172a;
-}
-
-.dark .info-group .value {
-  color: white;
-}
-
-.premium-q-input :deep(.q-field__control) {
-  border-radius: 12px;
-}
-.dark .premium-q-input :deep(.q-field__control) {
-  background: #0f172a;
-}
-.dark .premium-q-input :deep(.q-field__native) {
-  color: white;
-}
-.dark .premium-q-input :deep(.q-field__label) {
-  color: #94a3b8;
-}
+/* Removed card-premium and dark mode overrides as we used utility classes */
 
 .fade-in {
   animation: fadeIn 0.4s ease-out forwards;

Frontend-Learner/pages/index.vue

@@ -13,37 +13,14 @@ useHead({
   title: 'E-Learning System - ระบบการเรียนการสอนออนไลน์'
 })
 
+import { CATEGORY_CARDS, WHY_CHOOSE_US } from '@/constants/landing'
+
 const { fetchCategories } = useCategory()
 const { fetchCourses, getLocalizedText } = useCourse()
 const { user } = useAuth()
 
-const stepOneCards = [
-  { title: 'AI Foundations', desc: 'เข้าใจพื้นฐาน AI ใช้งานจริงได้ทุกสายงาน', bgClass: 'bg-slate-900', textClass: 'text-white', arrowClass: 'text-white/60 border-white/20 group-hover:text-slate-900', categorySlug: 'programming' },
-  { title: 'Data Analyst', desc: 'เรียนจนทำ Dashboard วิเคราะห์ Data ได้เลย', bgClass: 'bg-amber-500', textClass: 'text-slate-900', arrowClass: 'text-slate-900/40 border-slate-900/10 group-hover:text-amber-500', categorySlug: 'business' },
-  { title: 'Front-End Web Developer', desc: 'เขียนเว็บสวย ใช้งานได้จริงตั้งแต่หน้าแรก', bgClass: 'bg-orange-500', textClass: 'text-white', arrowClass: 'text-white/60 border-white/20 group-hover:text-orange-500', categorySlug: 'programming' },
-  { title: 'UX/UI Designer', desc: 'ต่อยอดทำ Portfolio ไม่มีประสบการณ์ก็เรียนได้', bgClass: 'bg-pink-600', textClass: 'text-white', arrowClass: 'text-white/60 border-white/20 group-hover:text-pink-600', categorySlug: 'design' },
-  { title: 'Product Manager', desc: 'เก็บทุกทักษะ ปั้น Product วางแผนแบบมือโปร', bgClass: 'bg-teal-500', textClass: 'text-white', arrowClass: 'text-white/60 border-white/20 group-hover:text-teal-500', categorySlug: 'business' },
-  { title: 'Back-End Developer', desc: 'เข้าใจโครงสร้างระบบและฐานข้อมูลหลังบ้าน', bgClass: 'bg-blue-600', textClass: 'text-white', arrowClass: 'text-white/60 border-white/20 group-hover:text-blue-600', categorySlug: 'programming' },
-  { title: 'Supply Chain & Logistics', desc: 'ใช้ Data วางแผนโลจิสติกส์ได้อย่างมีประสิทธิภาพ', bgClass: 'bg-slate-700', textClass: 'text-white', arrowClass: 'text-white/60 border-white/20 group-hover:text-slate-700', categorySlug: 'business' }
-]
-
-const learningStyles = [
-  { 
-    title: 'คอร์สออนไลน์', icon: 'desktop_windows', type: 'ONLINE',
-    subtitle: 'เรียนได้ทุกที่ ทุกเวลา', desc: 'คัดสรรเนื้อหาคุณภาพจากผู้เชี่ยวชาญ\nพร้อมให้คุณเริ่มต้นเรียนรู้ได้ทันที', 
-    time: 'เข้าถึงได้ตลอดชีพ',
-    features: ['เนื้อหาครบทุกประเด็นสำคัญ', 'โจทย์ตัวอย่างและแบบฝึกหัด', 'เรียนซ้ำได้ไม่จำกัด', 'ใบเซอร์ทิฟิเคตหลังเรียนจบ'],
-    iconBg: 'bg-blue-50', iconColor: 'text-blue-600', titleClass: 'text-blue-700',
-    btnClass: 'bg-indigo-900 text-white hover:bg-indigo-800'
-  }
-]
-
-const promoCategories = [
-  { title: 'Data', desc: 'เรียนรู้และฝึกฝนกระบวนการคิดสร้างมูลค่าให้ธุรกิจด้วยข้อมูล', icon: 'analytics' },
-  { title: 'Design', desc: 'ออกแบบ Digital Product เพื่อให้ผู้ใช้งานได้รับประสบการณ์ที่ดีที่สุด', icon: 'palette' },
-  { title: 'Tech', desc: 'พร้อมเป็นที่ต้องการของตลาดแรงงานด้วยทักษะการเขียนโปรแกรม', icon: 'code' },
-  { title: 'Business', desc: 'พลิกโฉมธุรกิจในยุคดิจิทัลด้วยการเข้าถึงลูกค้าในช่องทางและเวลาที่เหมาะสม', icon: 'trending_up' }
-]
+const categoryCards = CATEGORY_CARDS
+const whyChooseUs = WHY_CHOOSE_US
 
 const categories = ref<any[]>([])
 const topCourses = ref<any[]>([])
@@ -173,128 +150,73 @@ onMounted(() => {
       </div>
     </header>
 
-    <section class="pt-16 pb-12 md:pt-24 md:pb-20 bg-white">
+    <!-- Why Choose Us Section -->
+    <section class="pt-20 pb-12 bg-white relative">
       <div class="container mx-auto px-6 lg:px-12">
         <div class="text-center mb-16 slide-up">
-          <h2 class="text-3xl md:text-5xl font-bold text-slate-900 mb-6 px-4">
-            เพราะ “ก้าวแรก” ของการพัฒนาตัวเอง ท้าทายเสมอ
+          <h2 class="text-3xl md:text-5xl font-black text-slate-900 mb-6">
+            ทำไมต้องเลือกแพลตฟอร์มของเรา?
           </h2>
           <p class="text-slate-500 text-lg md:text-xl font-medium max-w-3xl mx-auto leading-relaxed">
-            เราจึงตั้งใจออกแบบบทเรียนให้ <span class="text-blue-600 font-bold">‘เข้าใจง่าย’</span> และ <span class="text-blue-600 font-bold">‘นำไปใช้ได้จริง’</span> เพื่อให้ทุกก้าวของคุณ มั่นคงและไปถึงเป้าหมายได้สำเร็จ
+            เรามีเครื่องมือและความเชี่ยวชาญที่จะช่วยให้คุณประสบความสำเร็จในการเปลี่ยนสายอาชีพและการสร้างทักษะระดับมืออาชีพ
           </p>
         </div>
 
-        <!-- Grid Container (Bento Layout) -->
-        <div class="relative">
-          <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-4">
-            <div v-for="(card, i) in stepOneCards" :key="i" 
-                 class="group cursor-pointer rounded-3xl p-6 flex flex-col justify-between transition-all hover:-translate-y-1 shadow-lg hover:shadow-2xl overflow-hidden relative"
-                 :class="[
-                   card.bgClass,
-                   i === 0 ? 'lg:row-span-2 min-h-[380px]' : 'min-h-[220px]'
-                 ]"
-                 @click="goBrowse(card.categorySlug)"
+        <div class="grid grid-cols-1 md:grid-cols-3 gap-8">
+          <div v-for="(item, i) in whyChooseUs" :key="i"
+               class="slide-up p-10 rounded-[2.5rem] bg-slate-50/50 border border-slate-100 hover:bg-white hover:shadow-2xl hover:shadow-blue-600/5 transition-all duration-500 group"
+               :style="`animation-delay: ${i * 0.1}s`"
+          >
+            <div class="w-16 h-16 rounded-3xl flex items-center justify-center mb-8 transition-transform group-hover:scale-110 duration-500"
+                 :class="item.iconBg"
             >
-              <!-- Background Accent -->
-              <div class="absolute top-0 right-0 w-32 h-32 bg-white/5 rounded-full -translate-y-1/2 translate-x-1/2" />
-              
-              <div>
-                <span class="text-[10px] font-bold uppercase tracking-[0.15em] opacity-80 mb-3 block" :class="card.textClass === 'text-white' ? 'text-white/80' : 'text-slate-900/60'">ก้าวแรกของ</span>
-                <h3 class="text-2xl font-bold leading-tight tracking-tight mb-2" :class="card.textClass">{{ card.title }}</h3>
-              </div>
-              
-              <div class="space-y-4 relative z-10">
-                <p class="text-sm font-medium leading-relaxed opacity-90" :class="card.textClass">{{ card.desc }}</p>
-                <div class="flex justify-end">
-                  <div class="w-10 h-10 rounded-full border border-white/20 flex items-center justify-center transition-all bg-white/10 group-hover:bg-white/20 group-hover:scale-105 backdrop-blur-sm"
-                       :class="[i === 0 ? 'w-12 h-12' : '']">
-                     <q-icon name="arrow_forward" :size="i === 0 ? '24px' : '20px'" :class="card.textClass" />
-                  </div>
-                </div>
-              </div>
+              <q-icon :name="item.icon" size="32px" :class="item.iconColor" />
             </div>
+            <h3 class="text-2xl font-black text-slate-900 mb-4 group-hover:text-blue-600 transition-colors">
+              {{ item.title }}
+            </h3>
+            <p class="text-slate-500 text-lg leading-relaxed font-medium">
+              {{ item.desc }}
+            </p>
           </div>
         </div>
       </div>
     </section>
 
-    <!-- Section 2: "Value Proposition" - Why Online Learning here? -->
-    <section class="pt-12 pb-12 md:pt-20 md:pb-20 bg-white relative overflow-hidden">
-      <!-- Decorative background blur -->
-      <div class="absolute top-1/2 left-0 -translate-y-1/2 w-96 h-96 bg-blue-100/50 rounded-full blur-[100px] -z-10" />
-      
+    <section class="pt-16 pb-12 md:pt-24 md:pb-20 bg-white">
       <div class="container mx-auto px-6 lg:px-12">
-        <div class="grid grid-cols-1 lg:grid-cols-2 gap-20 items-center">
-          <!-- Left side: Visual representation -->
-          <div class="relative slide-up">
-            <div class="relative z-10 bg-gradient-to-br from-blue-600 to-indigo-700 rounded-[4rem] p-12 md:p-20 shadow-3xl overflow-hidden group">
-              <!-- Animated background shapes -->
-              <div class="absolute top-0 right-0 w-64 h-64 bg-white/10 rounded-full -translate-y-1/2 translate-x-1/2 group-hover:scale-110 transition-transform duration-1000" />
-              <div class="absolute bottom-0 left-0 w-48 h-48 bg-amber-400/20 rounded-full translate-y-1/2 -translate-x-1/2" />
-              
-              <div class="relative z-20 flex flex-col items-center text-center text-white">
-                <div class="w-24 h-24 md:w-32 md:h-32 bg-white/20 backdrop-blur-md rounded-[2.5rem] flex items-center justify-center mb-8 shadow-inner">
-                  <q-icon name="laptop_mac" size="64px" class="text-white" />
-                </div>
-                <h3 class="text-3xl md:text-5xl font-black leading-[1.2] md:leading-[1.15] tracking-tight mb-0 pt-1 overflow-visible">
-                  คอร์สออนไลน์<br class="hidden md:block" />
-                  ที่ออกแบบมาสำหรับคุณ
-                </h3>
-                <p class="mt-5 text-blue-100/90 text-base md:text-lg font-medium leading-relaxed max-w-md">
-                  เรียนรู้ทักษะใหม่จากผู้เชี่ยวชาญตัวจริง พร้อมเนื้อหาที่เข้มข้นและใช้งานได้จริง
-                </p>
-              </div>
-            </div>
-            
-            <!-- Floating Stats pill -->
-            <div class="absolute -bottom-10 -right-6 md:right-10 z-30 bg-white p-6 rounded-3xl shadow-2xl animate-float">
-              <div class="flex items-center gap-4">
-                <div class="w-12 h-12 rounded-2xl bg-amber-50 flex items-center justify-center text-amber-600">
-                  <q-icon name="query_builder" size="28px" />
-                </div>
-                <div>
-                  <div class="text-xs font-bold text-slate-400 uppercase tracking-tighter">Access Status</div>
-                  <div class="text-xl font-black text-slate-900">เข้าถึงได้ตลอดชีพ</div>
-                </div>
-              </div>
-            </div>
-          </div>
+        <div class="mb-12 slide-up">
+          <h2 class="text-3xl md:text-4xl font-black text-slate-900 px-4">
+            เลือกเรียนตามเรื่องที่คุณสนใจ
+          </h2>
+        </div>
 
-          <!-- Right side: Content & Benefits -->
-          <div class="slide-up" style="animation-delay: 0.2s;">
-            <div class="mb-12">
-              <span class="inline-flex items-center px-5 py-2 rounded-full bg-blue-50 text-blue-600 text-xs md:text-sm font-extrabold uppercase tracking-widest mb-5 border border-blue-100">
-                Premium Learning Experience
-              </span>
-              <h2 class="text-4xl md:text-6xl font-bold text-slate-900 leading-[1.2] md:leading-[1.2] tracking-tight mb-0 pt-1 overflow-visible">
-                ก้าวข้ามทุกขีดจำกัด<br />
-                ด้วยการเรียนรู้ที่ <span class="text-blue-600">“อิสระ”</span>
-              </h2>
-              <p class="mt-6 text-slate-500 text-lg md:text-xl font-medium leading-relaxed max-w-2xl">
-                เราคัดสรรและคราฟต์ทุกคอร์สเรียนเพื่อให้มั่นใจว่าคุณจะได้รับประสบการณ์การเรียนรู้ที่ดีที่สุด ไม่ว่าจะอยู่ที่ไหนหรือเวลาใดก็ตาม
+        <!-- Horizontal Cards (New Layout - Image 2) -->
+        <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-6 px-4">
+          <div v-for="(card, i) in categoryCards" :key="i"
+               class="group cursor-pointer bg-white rounded-[2rem] p-6 border border-slate-100/80 shadow-sm hover:shadow-2xl hover:shadow-blue-600/5 hover:-translate-y-1 transition-all duration-500 relative flex items-center gap-5"
+               @click="goBrowse(card.slug)"
+          >
+            <!-- Icon Box -->
+            <div class="flex-shrink-0 w-16 h-16 rounded-[1.5rem] flex items-center justify-center bg-blue-50/50 group-hover:scale-110 transition-transform duration-500"
+            >
+              <q-icon :name="card.icon" size="28px" class="text-blue-600" />
+            </div>
+
+            <!-- Content -->
+            <div class="flex-grow pr-2">
+              <h3 class="text-lg md:text-xl font-black text-slate-900 mb-1 group-hover:text-blue-600 transition-colors leading-tight">
+                {{ card.title }}
+              </h3>
+              <p class="text-slate-500 text-xs md:text-sm font-medium leading-relaxed opacity-70">
+                {{ card.desc }}
               </p>
             </div>
 
-            <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-6 mb-12">
-              <div v-for="(feature, f) in learningStyles[0].features" :key="f" 
-                   class="flex items-center gap-4 p-5 rounded-3xl bg-slate-50 border border-slate-100 group hover:border-blue-200 hover:bg-white hover:shadow-xl transition-all duration-300"
-              >
-                <div class="flex-shrink-0 w-10 h-10 rounded-full bg-white flex items-center justify-center text-green-500 shadow-sm group-hover:bg-green-500 group-hover:text-white transition-colors">
-                  <q-icon name="check" size="20px" />
-                </div>
-                <span class="text-base font-black text-slate-700 leading-snug">{{ feature }}</span>
-              </div>
+            <!-- Arrow -->
+            <div class="flex-shrink-0 text-slate-300 group-hover:text-blue-600 transition-colors transform group-hover:translate-x-1 duration-300">
+              <q-icon name="chevron_right" size="24px" />
             </div>
-
-            <q-btn 
-              unelevated 
-              rounded 
-              color="primary"
-              label="เริ่มต้นบทเรียนแรกของคุณ"
-              class="px-12 h-20 font-black text-xl md:text-2xl transition-all shadow-xl hover:shadow-2xl hover:-translate-y-1"
-              no-caps
-              :to="user ? '/browse' : '/auth/login'"
-            />
           </div>
         </div>
       </div>
@@ -302,6 +224,7 @@ onMounted(() => {
 
 
 
+
     <!-- Section 4: "คอร์สออนไลน์" -->
     <section class="pt-12 pb-24 md:pt-20 md:pb-40 bg-slate-50/50">
       <div class="container mx-auto px-6 lg:px-12">

Frontend-Learner/pages/verify-email.vue

@@ -6,7 +6,7 @@
  */
 
 definePageMeta({
-  layout: 'default'
+  layout: 'auth'
 })
 
 const route = useRoute()
@@ -68,8 +68,8 @@ const navigateToHome = () => {
 
       <!-- Success State -->
       <div v-else-if="isSuccess" class="flex flex-col items-center animate-bounce-in">
-        <div class="w-24 h-24 rounded-full bg-green-100 dark:bg-green-900/30 flex items-center justify-center mb-6">
-           <q-icon name="check_circle" class="text-6xl text-green-500" />
+        <div class="w-24 h-24 rounded-full bg-green-500 flex items-center justify-center mb-10 shadow-lg shadow-green-500/20">
+           <q-icon name="check" class="text-5xl text-white font-black" />
         </div>
         
         <h2 class="text-3xl font-black text-slate-900 dark:text-white mb-2">

Frontend-Learner/types/auth.ts

@@ -0,0 +1,41 @@
+/**
+ * @file auth.ts
+ * @description Type definitions for authentication and user profiles.
+ */
+
+export interface User {
+  id: number
+  username: string
+  email: string
+  email_verified_at?: string | null
+  created_at?: string
+  updated_at?: string
+  role: {
+    code: string // เช่น 'STUDENT', 'INSTRUCTOR', 'ADMIN'
+    name: { th: string; en: string }
+  }
+  profile?: {
+    prefix: { th: string; en: string }
+    first_name: string
+    last_name: string
+    phone: string | null
+    avatar_url: string | null
+  }
+}
+
+export interface LoginResponse {
+  token: string
+  refreshToken: string
+  user: User
+  profile: User['profile']
+}
+
+export interface RegisterPayload {
+  username: string
+  email: string
+  password: string
+  first_name: string
+  last_name: string
+  prefix: { th: string; en: string }
+  phone: string
+}

Frontend-Learner/types/course.ts

@@ -0,0 +1,142 @@
+/**
+ * @file course.ts
+ * @description Type definitions for courses, enrollments, quizzes, and certificates.
+ */
+
+export interface Course {
+  id: number
+  title: string | { th: string; en: string }
+  slug: string
+  description: string | { th: string; en: string }
+  thumbnail_url: string
+  price: string
+  is_free: boolean
+  original_price?: string
+  have_certificate: boolean
+  status: string
+  category_id: number
+  created_at?: string
+  updated_at?: string
+  created_by?: number
+  updated_by?: number
+  approved_at?: string
+  approved_by?: number
+  rejection_reason?: string
+  enrolled?: boolean
+  total_lessons?: number
+  rating?: string
+  lessons?: number | string
+  levelType?: 'neutral' | 'warning' | 'success'
+  chapters?: {
+    id: number
+    title: string | { th: string; en: string }
+    lessons: {
+      id: number
+      title: string | { th: string; en: string }
+      duration_minutes: number
+      video_url?: string
+    }[]
+  }[]
+  creator?: {
+    id: number
+    username: string
+    email: string
+    profile: {
+      first_name: string
+      last_name: string
+      avatar_url: string
+    }
+  }
+  instructors?: {
+    user_id: number
+    is_primary: boolean
+    user: {
+      id: number
+      username: string
+      email: string
+      profile: {
+        first_name: string
+        last_name: string
+        avatar_url: string
+      }
+    }
+  }[]
+}
+
+export interface CourseResponse {
+  code: number
+  message: string
+  data: Course[]
+  total: number
+  page?: number
+  limit?: number
+  totalPages?: number
+}
+
+export interface SingleCourseResponse {
+  code: number
+  message: string
+  data: Course
+}
+
+export interface EnrolledCourse {
+  id: number
+  course_id: number
+  course: Course
+  status: 'ENROLLED' | 'IN_PROGRESS' | 'COMPLETED' | 'DROPPED'
+  progress_percentage: number
+  enrolled_at: string
+  started_at?: string
+  completed_at?: string
+  last_accessed_at?: string
+}
+
+export interface EnrolledCourseResponse {
+  code: number
+  message: string
+  data: EnrolledCourse[]
+  total: number
+  page: number
+  limit: number
+}
+
+export interface QuizAnswerSubmission {
+  question_id: number
+  choice_id: number
+}
+
+export interface QuizSubmitRequest {
+  answers: QuizAnswerSubmission[]
+}
+
+export interface QuizResult {
+  answers_review: {
+    score: number
+    is_correct: boolean
+    correct_choice_id: number
+    selected_choice_id: number
+    question_id: number
+  }[]
+  completed_at: string
+  started_at: string
+  attempt_number: number
+  passing_score: number
+  is_passed: boolean
+  correct_answers: number
+  total_questions: number
+  total_score: number
+  score: number
+  quiz_id: number
+  attempt_id: number
+}
+
+export interface Certificate {
+  certificate_id: number
+  course_id: number
+  course_title: {
+    en: string
+    th: string
+  }
+  issued_at: string
+  download_url: string
+}

Frontend-Learner/types/index.ts

@@ -0,0 +1,2 @@
+export * from './auth'
+export * from './course'

Frontend-Learner/คู่มืออธิบาย/ED.md

@@ -33,3 +33,39 @@
 - แก้ไขไฟล์ `pages/browse/index.vue` (เพิ่ม Query Watcher, ปรับ UI)
 - แก้ไขไฟล์ `pages/browse/recommended.vue` (ปรับ UI ส่วน CTA)
 - แก้ไขไฟล์ `components/layout/LandingHeader.vue` (แก้ Memory Leak)
+
+---
+
+วันที่บันทึกปฏิบัติงาน \*
+19/02/2026
+
+องค์ความรู้ที่ได้รับ \*
+
+- การออกแบบ Dashboard Layout แบบ Modern Grid (SkillLane Style/Reference Style)
+- การใช้ `q-carousel` (Quasar) ทำ Image Slider แบนเนอร์ประชาสัมพันธ์
+- การจัดการแสดงผลข้อมูล Course Card แยกตามสถานะ (Enrolled/Recommended/Free)
+- การปรับแต่ง Menu Navigation (`useNavItems`) เพื่อลดความซ้ำซ้อนใน Sidebar
+
+รายละเอียด \*
+
+- ออกแบบและพัฒนาหน้า Dashboard ใหม่ (`pages/dashboard/index.vue`)
+  1. เพิ่ม Banner Slide ขนาดใหญ่ด้านบน
+  2. แสดงรายการ "คอร์สที่คุณกำลังเรียน" (In Progress Courses) พร้อม Progress Bar
+  3. แสดงรายการ "คอร์สแนะนำ" (Recommended Courses)
+  4. เพิ่มหมวด "คอร์สฟรี" (Free Courses)
+- ปรับแต่ง Sidebar Navigation (`composables/useNavItems.ts`) ลบเมนูที่ไม่จำเป็นออก (Online Courses, Recommended, Announcements) ให้เหลือเฉพาะเมนูหลัก
+
+ปัญหาและอุปสรรค \*
+
+- การแสดงผล Carousel มีปุ่ม Arrows เกะกะสายตาบนแบนเนอร์
+- ต้องการแยกข้อมูลคอร์สฟรีออกจากคอร์สทั่วไป แต่ API ยังไม่มี Filter โดยตรง
+
+รายละเอียด \*
+
+- แก้ไข Property ของ `q-carousel` โดยลบ `arrows` ออก เพื่อให้เหลือเฉพาะ Navigation Dots ด้านล่าง
+- เขียน Logic กรองข้อมูลฝั่ง Client (Client-side filtering) สำหรับคอร์สฟรี โดยตรวจสอบจาก `price === 0` หรือ `is_free: true`
+
+หลักฐานการปฏิบัติงาน (เฉพาะไฟล์ JPG, JPEG, PNG, PDF.)
+
+- แก้ไขไฟล์ `pages/dashboard/index.vue` (New Dashboard UI)
+- แก้ไขไฟล์ `composables/useNavItems.ts` (Clean Sidebar)

Frontend-Learner/คู่มืออธิบาย/web-dev-details.md

@@ -1,187 +1,138 @@
-# 🛠️ Web Development Documentation: e-Learning Platform (Frontend)
+# Frontend-Learner (Web) — Technical Documentation
 
-เอกสารฉบับนี้สรุปรายละเอียดทางเทคนิค โครงสร้างโค้ด และการทำงานของระบบ **Frontend-Learner** (อัปเดตล่าสุด: กุมภาพันธ์ 2026)
+เอกสารฉบับนี้สรุปรายละเอียดทางเทคนิค โครงสร้างโค้ด และกลไกการทำงานของระบบ **Frontend-Learner (ฝั่งผู้เรียน)**  
+ใช้เป็นคู่มือสำหรับการพัฒนา บำรุงรักษา และขยายระบบต่อไป
+
+> อัปเดตล่าสุด: ปลายเดือนกุมภาพันธ์ 2026
 
 ---
 
-## 🏗️ 1. Technical Foundation (รากฐานทางเทคนิค)
+## Table of Contents
 
-รวมข้อมูลเครื่องมือ, ระบบความปลอดภัย และประสิทธิภาพการทำงานไว้ด้วยกัน
+- [1. Technical Foundation](#1-technical-foundation)
+  - [1.1 Tech Stack](#11-tech-stack)
+  - [1.2 Security & Authentication](#12-security--authentication)
+- [2. Project Architecture](#2-project-architecture)
+  - [2.1 Directory Structure](#21-directory-structure)
+  - [2.2 Shared Infrastructure](#22-shared-infrastructure)
+- [3. Logic & Data Layer (Composables)](#3-logic--data-layer-composables)
+- [4. Branding & UI Policy](#4-branding--ui-policy)
+  - [4.1 Theme Strategy](#41-theme-strategy)
+  - [4.2 UI Elements](#42-ui-elements)
+- [5. Core Feature Highlights](#5-core-feature-highlights)
+- [6. Maintenance & Performance Guidelines](#6-maintenance--performance-guidelines)
+
+---
+
+## 1. Technical Foundation
+
+รากฐานทางเทคนิคที่ขับเคลื่อนระบบ เพื่อให้ได้ประสิทธิภาพและความเสถียรสูงสุด
 
 ### 1.1 Tech Stack
 
-- **Core:** [Nuxt 3](https://nuxt.com) (v`^3.11.2`), TypeScript `^5.4.5`
-- **UI Framework:** Quasar Framework `^2.15.2` (via `nuxt-quasar-ui ^3.0.0`)
-- **Styling:** Tailwind CSS `^6.12.0` (Utility) + Vanilla CSS Variables (Theming/Dark Mode)
-- **State Management:** `ref`/`reactive` (Local) + `useState` (Global/Shared State)
-- **Localization:** `@nuxtjs/i18n` (Supports JSON locales in `i18n/locales/`)
-- **Media Control:** `useMediaPrefs` (Command Pattern for global volume/mute state)
+- **Framework:** Nuxt 3 (Vue 3, Vite, SSR/SPA Hybrid)
+- **UI System:** Quasar Framework + Tailwind CSS (Utility-first)
+- **Typography:** Google Fonts (**Prompt** เป็น Font หลักเพื่อความทันสมัยและอ่านง่าย)
+- **Multilingual:** `@nuxtjs/i18n` (รองรับ JSON-based locales ภาษาไทยและอังกฤษ)
+- **Programming:** TypeScript (Strict Type Checking)
 
-### 1.2 Core Systems & Security
+### 1.2 Security & Authentication
 
-- **Authentication:**
-  - ใช้ **JWT** (Access Token 1 วัน, Refresh Token 7 วัน)
-  - เก็บ Token ใน `useCookie` (Secure, SameSite)
-  - Middleware (`middleware/auth.ts`) ป้องกัน Route ตามสถานะ
-  - **Remember Me:** ระบบจดจำอีเมลลงใน `localStorage` (จำแยกจาก session, ไม่ถูกลบเมื่อ Logout)
-- **API Handling:**
-  - ใช้ `runtimeConfig.public.apiBase` เชื่องโยง Backend
-  - Auto-attach Bearer Token ใน `useAuth` และ `useCourse`
-- **Performance:**
-  - **Hybrid Progress Saving:** บันทึกเวลาเรียนลง LocalStorage (ถี่) และ Server (Throttle 15s) เพื่อความแม่นยำสูงสุด
-  - **Caching:** ใช้ `useState` จำข้อมูล Profile และ Categories ลด request
-  - **Code Quality:** ลบ Log, Dead logic และ Redundant comments ทั่วทั้งโปรเจกต์ (Clean Code Phase)
+- **Token Management:** ใช้ JWT (Access & Refresh Tokens) จัดเก็บผ่าน `useCookie`  
+  โดยตั้งค่าความปลอดภัยระดับ **HTTP-only** และ **SameSite**
+- **Middleware:** `auth.ts` ตรวจสอบสิทธิ์การเข้าถึงหน้า Dashboard และ Classroom แบบ Real-time
+- **Persistence:** ระบบ Remember Me (จดจำอีเมล) ใช้ `localStorage` แยกส่วนจาก Session  
+  เพื่อความปลอดภัยและสะดวกสำหรับผู้ใช้
 
 ---
 
-## 📂 2. Frontend Structure (โครงสร้างหน้าเว็บและ UI)
+## 2. Project Architecture
 
-### 2.1 Application Routes (`pages/`)
+โครงสร้างโฟลเดอร์ที่จัดระเบียบตามหลัก Clean Architecture เพื่อความคล่องตัวในการขยายระบบ
 
-| Module      | ไฟล์                       | Path                    | หน้าที่                                       |
-| :---------- | :------------------------- | :---------------------- | :-------------------------------------------- |
-| **Public**  | `index.vue`                | `/`                     | หน้าแรก Landing Page (**Forced Light Mode**)  |
-|             | `browse/discovery.vue`     | `/browse/discovery`     | **ระบบค้นหาและ Filter คอร์ส** (Catalog)       |
-|             | `course/[id].vue`          | `/course/:id`           | **หน้ารายละเอียดคอร์ส** (Course Detail)       |
-| **Auth**    | `auth/login.vue`           | `/auth/login`           | เข้าสู่ระบบ (**Remember Me**, **Light Mode**) |
-|             | `auth/register.vue`        | `/auth/register`        | สมัครสมาชิกผู้เรียน (**Light Mode**)          |
-|             | `auth/forgot-password.vue` | `/auth/forgot-password` | กู้คืนรหัสผ่าน (**Light Mode**)               |
-| **Student** | `dashboard/index.vue`      | `/dashboard`            | แดชบอร์ดภาพรวมผู้เรียน                        |
-|             | `dashboard/my-courses.vue` | `/dashboard/my-courses` | **คอร์สของฉัน** และดาวน์โหลดใบประกาศฯ         |
-|             | `dashboard/profile.vue`    | `/dashboard/profile`    | จัดการโปรไฟล์, รูปภาพ, เปลี่ยนรหัสผ่าน        |
-|             | `classroom/learning.vue`   | `/classroom/learning`   | **ห้องเรียน (Video Player)** & Announcements  |
-|             | `classroom/quiz.vue`       | `/classroom/quiz`       | การสอบวัดผล (**API-Driven Logic**)            |
+### 2.1 Directory Structure
 
-### 2.2 Key Components (`components/`)
+- `pages/` : ระบบ Routing ทั้งหมด (Landing, Auth, Dashboard, Classroom)
+- `components/` : UI Components แยกตามความรับผิดชอบ (Common, Layout, Course, Classroom, Profile)
+- `composables/` : Business Logic ทั้งหมด (Auth, Course, Theme, Quiz, Navigation)
+- `types/` : ศูนย์รวม Interface และ Type definitions ของทั้งระบบ
+- `constants/` : แหล่งเก็บข้อมูล Static (เช่น Category cards, Why choose us) เพื่อลดความซ้อนในไฟล์ Vue
+- `assets/css/` : `main.css` ที่เป็น Single Source of Truth สำหรับสไตล์และ CSS Variables
+- `layouts/` : Master templates (Default, Auth, Dashboard)
+- `middleware/` : ตัวกรองความปลอดภัยก่อนเข้าถึงแต่ละหน้า
 
-- **Common (`components/common/`):**
-  - `GlobalLoader.vue`: Loading indicator ทั่วทั้งแอป
-  - `LanguageSwitcher.vue`: ปุ่มเปลี่ยนภาษา (TH/EN)
-  - `AppHeader.vue`, `MobileNav.vue`: Navigation หลัก (ใช้ร่วมกับ AppSidebar)
-  - `FormInput.vue`: Input field มาตรฐาน
-- **Layout (`components/layout/`):**
-  - `AppSidebar.vue`: Sidebar หลักสำหรับ Dashboard (Collapsible)
-  - `LandingHeader.vue`: Header เฉพาะสำหรับหน้า Landing Page
-- **Course (`components/course/`):**
-  - `CourseCard.vue`: การ์ดแสดงผลคอร์ส รองรับ Progress และ **Glassmorphism** ในโหมดมืด
-- **Discovery (`components/discovery/`):**
-  - `CategorySidebar.vue`: Sidebar ตัวกรองหมวดหมู่แบบย่อ/ขยายได้
-  - `CourseDetailView.vue`: หน้ารายละเอียดคอร์สขนาดใหญ่ (Video Preview + Syllabus)
-- **Classroom (`components/classroom/`):**
-  - `CurriculumSidebar.vue`: Sidebar บทเรียนและสถานะการเรียน
-  - `AnnouncementModal.vue`: Modal แสดงประกาศของคอร์ส
-  - `VideoPlayer.vue`: Video Player พร้อม Custom Controls และ YouTube Support
-- **User / Profile (`components/user/`, `components/profile/`):**
-  - `UserAvatar.vue`: แสดงรูปโปรไฟล์ (รองรับ Fallback)
-  - `ProfileEditForm.vue`: ฟอร์มแก้ไขข้อมูลส่วนตัว
-  - `PasswordChangeForm.vue`: ฟอร์มเปลี่ยนรหัสผ่าน
+### 2.2 Shared Infrastructure
+
+- **Types Architecture:** การสกัด Types จาก Composable ออกมาไว้ที่ `@/types`  
+  ช่วยลดความซ้ำซ้อนและป้องกัน Error จากการเปลี่ยนโครงสร้างข้อมูล API
+- **Constants System:** การใช้ `@/constants` ช่วยให้การแก้ไขคำโฆษณาหรือข้อมูลหน้าแรกทำได้จากจุดเดียว  
+  โดยไม่ต้องแก้โค้ด HTML
 
 ---
 
-## 🧠 3. Logic & Data Layer (Composables)
+## 3. Logic & Data Layer (Composables)
 
-รวบรวม Logic หลักแยกส่วนตามหน้าที่ (Separation of Concerns)
+การแยก Logic ออกจาก UI เพื่อความสะอาดและ Testable
 
-### 3.1 `useAuth.ts` (Authentication & User)
+- `useAuth`  
+  จัดการสถานะ Login, การดึงโปรไฟล์ล่วงหน้า (Pre-fetching), และระบบ Token Refresh
 
-จัดการสถานะผู้ใช้, ล็อกอิน, และความปลอดภัย
+- `useCourse`  
+  หัวใจของระบบ จัดการตั้งแต่ Catalog, การสมัครเรียน (Enroll), ไปจนถึงการส่งผลการเรียน (Progress)
 
-- **Key Functions:** `login`, `register`, `fetchUserProfile`, `uploadAvatar`, `sendVerifyEmail`
-- **Features:** Refresh Token อัตโนมัติ, ตรวจสอบ Role, **Logout Logic ที่ไม่ลบข้อมูลจดจำผู้ใช้**
+- `useThemeMode`  
+  ระบบจัดการธีมกลางที่เชื่อมต่อกับ `localStorage` และ CSS Variables อย่างเป็นระบบ
 
-### 3.2 `useCourse.ts` (Course & Classroom)
+- `useQuizRunner`  
+  จัดการสถานะการสอบ เปลี่ยนข้อสอบ และส่งคะแนนไปยัง Backend โดยตรง
 
-หัวใจหลักของการเรียนการสอน
-
-- **Catalog:** `fetchCourses`, `fetchCourseById`, `enrollCourse`
-- **Classroom:**
-  - `fetchCourseLearningInfo`: โครงสร้างบทเรียน (Chapters/Lessons)
-  - `fetchLessonContent`: เนื้อหาวิดีโอ/Quiz/Attachments
-  - `fetchCourseAnnouncements`: ดึงข้อมูลประกาศของคอร์ส
-  - `saveVideoProgress`: บันทึกเวลาเรียน (Sync Server)
-- **i18n Support:** `getLocalizedText` ตัวช่วยในการเลือกแสดงผลภาษา (TH/EN) ตาม Locale ปัจจุบันที่ผู้ใช้เลือก อัตโนมัติทั่วทั้งแอป
-
-### 3.3 `useQuizRunner.ts` (Quiz System)
-
-จัดการ Logic การทำข้อสอบ (Production-Ready)
-
-- **Logic:** ควบคุมการเปลี่ยนข้อ, การส่งคำตอบ, และการรับผลลัพธ์จาก API
-- **Cleanup:** ลบ Mock delays และ Simulation logic ออกทั้งหมดเพื่อให้ทำงานร่วมกับ API จริงได้ทันที
+- `useNavItems`  
+  Single Source of Truth สำหรับเมนูทั้งหมด (Sidebar, Mobile Drawer, User Menu)
 
 ---
 
-## 🎨 4. Design System & Theming
+## 4. Branding & UI Policy
+
+มาตรฐานการออกแบบที่เน้นความ Premium และ Consistent
 
 ### 4.1 Theme Strategy
 
-- **Framework:** Tailwind CSS + Quasar UI
-- **Light/Dark Mode Policy:**
-  - **Public Pages:** บังคับ **Light Mode** (Landing, Course Detail, Auth) เพื่อภาพลักษณ์แบรนด์ที่สะอาดตา
-  - **Dashboard/Learning:** รองรับ **Dark Mode** เต็มรูปแบบ (Oceanic Theme)
-  - **Aesthetics:** ปรับปรุงความชัดเจนของ Badge, Icon และสถานะต่างๆ ในหน้าสอบ (Quiz) สำหรับโหมดมืดโดยเฉพาะ ให้มี Contrast สูงและดู Premium
-- **Visual Fixes:** แก้ไขปัญหา "Dark Frame" ในหน้า Auth โดยการบังคับสไตล์ระดับ HTML/Body
+- **Public Pages (Landing, Auth, Detail):** บังคับ **Forced Light Mode**  
+  เพื่อภาพลักษณ์แบรนด์ที่สะอาดและน่าเชื่อถือ
+- **Internal Pages (Dashboard, Learning):** รองรับ **Dark Mode (Oceanic Theme)**  
+  ลดการเมื่อยล้าของสายตาขณะเรียนเป็นเวลานาน
+- **Transitions:** ใช้ GlobalLoader และ Smooth transitions ทั่วทั้งแอปเพื่อประสบการณ์ที่ลื่นไหล
+
+### 4.2 UI Elements
+
+- **Image 2 Style Categories:** การ์ดหมวดหมู่แบบแนวนอนที่เป็นระเบียบ (Minimalist)
+- **Glassmorphism:** พื้นผิวโปร่งแสงใน Dashboard และ Classroom ช่วยให้แอปดูมีมิติ
+- **Standardized Icons:** ใช้ Material Icons ผ่าน Quasar ระบบเดียวทั้งหมด
 
 ---
 
-## 📊 5. Dependency Map (ความสัมพันธ์ไฟล์)
+## 5. Core Feature Highlights
 
-| หน้าเว็บ (Page)          | Components หลัก              | Composables หลัก                                       |
-| :----------------------- | :--------------------------- | :----------------------------------------------------- |
-| **Login / Register**     | `FormInput`                  | `useAuth` (Remember Me), `useFormValidation`           |
-| **Discovery (Browse)**   | `CourseCard`                 | `useCourse` (Search/Filter), `useCategory`             |
-| **My Courses**           | `CourseCard` (with Progress) | `useCourse` (Certificates)                             |
-| **Classroom (Learning)** | Video Player, Sidebar        | `useCourse` (Progress, Announcements), `useMediaPrefs` |
-| **Quiz**                 | `QuizHeader`, `QuizContent`  | `useQuizRunner` (Real API Integration)                 |
-| **Profile**              | `UserAvatar`, `FormInput`    | `useAuth` (Upload Avatar, Verify Email)                |
+ฟีเจอร์เด่นที่ถูกพัฒนาขึ้นเพื่อผู้เรียนโดยเฉพาะ
+
+- **SPA Learning Journey:** การสลับบทเรียนในห้องเรียนเป็นแบบ Single Page App (ไม่มีการ Re-load หน้า)  
+  ทำให้การเรียนต่อเนื่อง
+- **Hybrid Progress Tracking:** บันทึกเวลาเรียนลง `localStorage` แบบ Real-time และ Sync ขึ้น Server เป็นระยะ  
+  เพื่อป้องกันข้อมูลหาย
+- **Announcement System:** ระบบแจ้งเตือนในคอร์สพร้อมตัวระบุ "ยังไม่ได้อ่าน" (Unread Badge)  
+  ที่จำสถานะตามผู้ใช้งาน
+- **Interactive Quizzes:** ระบบสอบที่สลับคำถามอัตโนมัติ พร้อมโหมดเฉลย (Answer Review) ที่ชัดเจน
+- **Certificate Automation:** ระบบตรวจสอบสิทธิ์ความสำเร็จและออกใบประกาศนียบัตรได้ทันที
 
 ---
 
-## ✅ 6. Project Status (สถานะล่าสุด)
+## 6. Maintenance & Performance Guidelines
 
-### ✨ Recent Updates (กุมภาพันธ์ 2026)
+แนวทางสำหรับการพัฒนาต่อยอด
 
-1.  **System-Wide Code Cleanup (Phase Final):**
-    - **Refactoring:** ปัดกวาดโค้ดในหน้า `learning`, `quiz`, `discovery`, `dashboard` และ `profile`
-    - **Logging:** ลบ `console.log` มหาศาล และ logic ซ้ำซ้อนที่ตกค้างจากการพัฒนา
-    - **Structure:** จัดกลุ่มสไตล์และฟังก์ชันให้เป็นระเบียบ อ่านง่ายขึ้นตามมาตรฐาน Clean Code
+- **Clean Code:** หลีกเลี่ยงการใช้ `console.log` ในโค้ด Final และลบ Dead Logic ทิ้งทันที
+- **Standard Fonts:** ใช้ชุด Font Prompt ผ่านตัวแปร `--font-main` เสมอ
+- **API Integrity:** ตรวจสอบข้อมูลผ่าน Interface ใน `@/types` ก่อนการใช้งานทุกครั้ง
+- **Mobile First:** ทุก Component ต้องรองรับระบบ Master Drawer บนมือถืออย่างสมบูรณ์
 
-2.  **Authentication & Security Polish:**
-    - **Remember Me:** พัฒนาระบบจดจำอีเมลในหน้า Login ให้เสถียร (ใช้ `localStorage`)
-    - **Smart Logout:** ปรับปรุง `useAuth.logout` ให้ลบข้อมูล Session แต่เก็บข้อมูลที่ผู้ใช้สั่งจำไว้ (อีเมล)
-
-3.  **UI & Aesthetics (Premium Fixes):**
-    - **Theme Enforcement:** บังคับหน้าสาธารณะ (Landing/Auth) ให้เป็น Light Mode 100% พร้อมแก้ปัญหากรอบมืด (Dark Frame) ตกค้าง
-    - **Dark Mode Optimization:** ปรับปรุงสีและ Contrast ในหน้า Dashboard และ Profile ให้สวยงามและอ่านง่ายขึ้นในโหมมืด
-
-4.  **Quiz System Productionization:**
-    - **useQuizRunner:** แปลงร่างจาก Mock system เป็น API-Ready system (ลบ simulation logic ทั้งหมด)
-    - **Quiz UI:** ปรับปรุงการนำทางและสถานะการทำข้อสอบให้ลื่นไหล
-
-5.  **Smooth Navigation & Quiz Experience:**
-    - **SPA Navigation:** เปลี่ยนการสไลด์บทเรียนจาก Hard Reload เป็น SPA Navigation (`router.push`) ทำให้เรียนได้ต่อเนื่อง ไม่ต้องรอโหลดหน้าใหม่
-    - **Smart Lesson Loading:** ปรับปรุง Error ที่หน้าเว็บชอบเด้งกลับไปบทเรียนที่ 1 เสมอ โดยเปลี่ยนให้ความสำคัญกับ `lesson_id` จาก URL ก่อน
-    - **UI Simplification:** ลบทิ้ง "Legend/คำอธิบายสถานะ" ในหน้าสอบเพื่อความสะอาดตา (Minimal UI)
-    - **Sidebar visibility:** ช่วยให้ผู้ใช้เปิด-ปิด Sidebar บน Desktop ได้อย่างอิสระผ่านปุ่ม Hamburger
-
-6.  **Internationalization (i18n) Improvements:**
-    - **Localized Text Logic:** แก้ไขฟังก์ชัน `getLocalizedText` ให้แสดงภาษาตามที่ผู้ใช้สลับจริง (แก้ปัญหาหน้าเว็บเป็นอังกฤษแต่ชื่อวิชาเป็นไทย)
-    - **Hardcoded Removal:** ทยอยลบข้อความภาษาไทยที่พิมพ์ค้างไว้ในโค้ด (เช่น ใน Sidebar หมวดหมู่) และแทนที่ด้วย i18n keys
-    - **Boot Sequence Fix:** แก้ไขปัญหาเว็บค้าง (Error 500) ที่เกิดจากการเรียกใช้ภาษาเร็วเกินไปก่อนที่ระบบจะพร้อม (`initialization error`)
-
-7.  **Classroom & UX Optimization (Mid-February 2026):**
-    - **SPA Navigation for Learning:** เปลี่ยนระบบเลือกบทเรียนจากการ Reload หน้าเป็น SPA Navigation ทำให้เปลี่ยนวิดีโอ/บทเรียนได้ทันทีโดยไม่ต้อง Refresh หน้าจอ
-    - **Announcement Persistence:** เพิ่มระบบเช็กสถานะการอ่านประกาศ (Unread Badge) โดยบันทึกสถานะล่าสุดลง LocalStorage แยกตามผู้ใช้และคอร์ส
-    - **YouTube Resume:** รองรับการเรียนต่อจากจุดเดิมสำหรับวิดีโอ YouTube (Time Seeking via URL parameter)
-
-8.  **Quiz System Enhancements:**
-    - **Answer Review Mode:** เพิ่มโหมดเฉลยข้อสอบหลังทำเสร็จ พร้อมการไฮไลท์สีที่ชัดเจน (เขียว = ถูก, แดง = ตอบผิด)
-    - **Shuffle Logic:** เพิ่มการสลับคำถามและตัวเลือก (Shuffle) เพื่อความโปร่งใสในการสอบ
-    - **Enhanced Feedback:** ปรับปรุง UI ผลลัพธ์การสอบให้มีความ Premium และเข้าใจง่ายขึ้น
-
-9.  **Security & Registration Polish:**
-    - **Phone Validation:** เพิ่มระบบตรวจสอบเบอร์โทรศัพท์ในหน้าสมัครสมาชิก (ต้องเป็นตัวเลขและยาวไม่เกิน 10 หลัก)
-    - **Enrollment Alert Logic:** ปรับปรุง Logic การสมัครเรียนให้ตรวจสอบสถานะ Enrollment เดิมก่อน เพื่อป้องกัน API Error และการเรียก request ซ้ำซ้อน
-
-10. **Profile & Certificates:**
-    - **Verification Badge:** เพิ่มการแสดงผลสถานะการยืนยันอีเมลในหน้าโปรไฟล์ พร้อมปุ่มส่งอีเมลยืนยันหากยังไม่ได้ทำ
-    - **Certificate Flow:** ปรับปรุงระบบดาวน์โหลดใบประกาศนียบัตรให้รองรับทั้งการดึงไฟล์เดิมและสั่ง Generate ใหม่หากยังไม่มี
+---

frontend_management/components/course/LessonPreviewDialog.vue

@@ -18,7 +18,16 @@
         <div v-else-if="lessonDetail" class="p-6 space-y-6">
           <!-- Video Player -->
           <div v-if="lesson.type === 'VIDEO' && lessonDetail.video_url" class="aspect-video bg-black rounded-lg overflow-hidden">
+            <iframe
+              v-if="isYoutubeUrl(lessonDetail.video_url)"
+              :src="getYoutubeEmbedUrl(lessonDetail.video_url)"
+              class="w-full h-full"
+              frameborder="0"
+              allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture"
+              allowfullscreen
+            ></iframe>
             <video
+              v-else
               :src="lessonDetail.video_url"
               controls
               class="w-full h-full object-contain"
@@ -38,7 +47,7 @@
             </h3>
             <div class="grid grid-cols-1 md:grid-cols-2 gap-3">
               <a
-                v-for="file in lessonDetail.attachments"
+                v-for="file in lessonDetail.attachments.filter(f => !['video/mp4', 'video/youtube'].includes(f.mime_type))"
                 :key="file.id"
                 :href="file.file_path"
                 target="_blank"
@@ -74,6 +83,28 @@
                 </div>
               </div>
 
+              <!-- Quiz Settings -->
+              <div class="mt-4 p-4 bg-white rounded-lg border border-blue-100">
+                <div class="font-semibold text-gray-700 mb-3">การตั้งค่าเพิ่มเติม</div>
+                <div class="flex flex-wrap gap-2">
+                   <q-chip :color="lessonDetail.quiz.shuffle_questions ? 'positive' : 'grey-4'" :text-color="lessonDetail.quiz.shuffle_questions ? 'white' : 'grey-8'" size="m" :icon="lessonDetail.quiz.shuffle_questions ? 'check' : 'close'">
+                      สุ่มคำถาม
+                   </q-chip>
+                   <q-chip :color="lessonDetail.quiz.shuffle_choices ? 'positive' : 'grey-4'" :text-color="lessonDetail.quiz.shuffle_choices ? 'white' : 'grey-8'" size="m" :icon="lessonDetail.quiz.shuffle_choices ? 'check' : 'close'">
+                      สุ่มตัวเลือก
+                   </q-chip>
+                    <q-chip :color="lessonDetail.quiz.show_answers_after_completion ? 'positive' : 'grey-4'" :text-color="lessonDetail.quiz.show_answers_after_completion ? 'white' : 'grey-8'" size="m" :icon="lessonDetail.quiz.show_answers_after_completion ? 'check' : 'close'">
+                      เฉลยหลังทำเสร็จ
+                   </q-chip>
+                   <q-chip :color="lessonDetail.quiz.is_skippable ? 'positive' : 'grey-4'" :text-color="lessonDetail.quiz.is_skippable ? 'white' : 'grey-8'" size="m" :icon="lessonDetail.quiz.is_skippable ? 'check' : 'close'">
+                      ข้ามข้อได้
+                   </q-chip>
+                   <q-chip :color="lessonDetail.quiz.allow_multiple_attempts ? 'positive' : 'grey-4'" :text-color="lessonDetail.quiz.allow_multiple_attempts ? 'white' : 'grey-8'" size="m" :icon="lessonDetail.quiz.allow_multiple_attempts ? 'check' : 'close'">
+                      ทำซ้ำได้
+                   </q-chip>
+                </div>
+              </div>
+
               <!-- Questions List -->
               <div v-if="lessonDetail.quiz.questions && lessonDetail.quiz.questions.length > 0" class="mt-6 space-y-6">
                 <!-- ... (questions rendering code unchanged) ... -->
@@ -175,6 +206,23 @@ const formatFileSize = (bytes: number) => {
   return parseFloat((bytes / Math.pow(k, i)).toFixed(2)) + ' ' + sizes[i];
 };
 
+const isYoutubeUrl = (url: string) => {
+  return url.includes('youtube.com') || url.includes('youtu.be');
+};
+
+const getYoutubeEmbedUrl = (url: string) => {
+  let videoId = '';
+  
+  if (url.includes('youtu.be')) {
+    videoId = url.split('/').pop()?.split('?')[0] || '';
+  } else if (url.includes('youtube.com')) {
+    const params = new URLSearchParams(url.split('?')[1]);
+    videoId = params.get('v') || '';
+  }
+
+  return `https://www.youtube.com/embed/${videoId}`;
+};
+
 const fetchLessonDetail = async () => {
   // Always verify lesson and courseId exist
   if (!props.lesson || !props.courseId) return;

frontend_management/layouts/admin.vue

@@ -63,7 +63,7 @@
         </NuxtLink>
 
         <NuxtLink
-          to="/admin/audit-logs"
+          to="/admin/audit-log"
           class="flex items-center gap-3 px-4 py-3 rounded-lg hover:bg-primary-100 transition mb-2"
           active-class="bg-primary-500 text-white hover:bg-primary-600"
         >
@@ -91,11 +91,29 @@
 </template>
 
 <script setup lang="ts">
+import { useQuasar } from 'quasar';
+
+const $q = useQuasar();
 const authStore = useAuthStore();
 const router = useRouter();
 
 const handleLogout = () => {
-  authStore.logout();
-  router.push('/login');
+  $q.dialog({
+    title: 'ยืนยันออกจากระบบ',
+    message: 'คุณต้องการออกจากระบบหรือไม่?',
+    persistent: true,
+    ok: {
+      label: 'ออกจากระบบ',
+      color: 'negative',
+      flat: false
+    },
+    cancel: {
+      label: 'ยกเลิก',
+      flat: true
+    }
+  }).onOk(() => {
+    authStore.logout();
+    router.push('/login');
+  });
 };
 </script>

frontend_management/layouts/instructor.vue

@@ -2,7 +2,7 @@
   <div class="min-h-screen bg-gray-50">
     <!-- Sidebar -->
     <aside class="fixed left-0 top-0 h-screen w-64 bg-white shadow-lg">
-      <div class="p-6">
+      <div class="py-6 px-8">
         <h2 class="text-xl font-bold text-primary-600">E-Learning</h2>
         <p class="text-sm text-gray-500">Instructor Panel</p>
       </div>
@@ -46,11 +46,29 @@
 </template>
 
 <script setup lang="ts">
+import { useQuasar } from 'quasar';
+
+const $q = useQuasar();
 const authStore = useAuthStore();
 const router = useRouter();
 
 const handleLogout = () => {
-  authStore.logout();
-  router.push('/login');
+  $q.dialog({
+    title: 'ยืนยันออกจากระบบ',
+    message: 'คุณต้องการออกจากระบบหรือไม่?',
+    persistent: true,
+    ok: {
+      label: 'ออกจากระบบ',
+      color: 'negative',
+      flat: false
+    },
+    cancel: {
+      label: 'ยกเลิก',
+      flat: true
+    }
+  }).onOk(() => {
+    authStore.logout();
+    router.push('/login');
+  });
 };
 </script>

frontend_management/nuxt.config.ts

@@ -35,10 +35,13 @@ export default defineNuxtConfig({
   devtools: { enabled: true },
   app: {
     head: {
-      title: 'E-Learning System',
+      title: 'E-Learning-Management',
       meta: [
         { charset: 'utf-8' },
         { name: 'viewport', content: 'width=device-width, initial-scale=1' }
+      ],
+      link: [
+        { rel: 'icon', type: 'image/png', href: '/icon.png' }
       ]
     }
   }

frontend_management/pages/admin/audit-log/index.vue

@@ -218,7 +218,7 @@
           <p>เลือกระยะเวลาที่ต้องการเก็บไว้ (ลบข้อมูลที่เก่ากว่ากำหนด):</p>
           <q-select
             v-model="cleanupDays"
-            :options="[30, 60, 90, 180, 365]"
+            :options="[7, 15, 30, 60, 90, 180, 365]"
             label="จำนวนวัน"
             suffix="วัน"
             outlined

frontend_management/pages/admin/courses/[id].vue

@@ -75,7 +75,7 @@
         <div class="space-y-4">
           <!-- Stats -->
           <div class="bg-white rounded-xl shadow-sm p-6">
-            <h3 class="font-semibold text-gray-700 mb-4">สถิติ</h3>
+            <h3 class="font-semibold text-gray-700 mb-4">รายละเอียด</h3>
             <div class="space-y-3">
               <div class="flex justify-between">
                 <span class="text-gray-500">จำนวนบท</span>
@@ -93,6 +93,14 @@
                 <span class="text-gray-500">แบบทดสอบ</span>
                 <span class="font-medium">{{ quizCount }}</span>
               </div>
+              <div class="flex justify-between">
+                <span class="text-gray-500">สร้างเมื่อ</span>
+                <span>{{ formatDate(course.created_at) }}</span>
+              </div>
+              <div class="flex justify-between">
+                <span class="text-gray-500">อัพเดทล่าสุด</span>
+                <span>{{ formatDate(course.updated_at) }}</span>
+              </div>
             </div>
           </div>
 
@@ -116,21 +124,6 @@
               </div>
             </div>
           </div>
-
-          <!-- Timeline -->
-          <div class="bg-white rounded-xl shadow-sm p-6">
-            <h3 class="font-semibold text-gray-700 mb-4">ข้อมูลระบบ</h3>
-            <div class="space-y-3 text-sm">
-              <div class="flex justify-between">
-                <span class="text-gray-500">สร้างเมื่อ</span>
-                <span>{{ formatDate(course.created_at) }}</span>
-              </div>
-              <div class="flex justify-between">
-                <span class="text-gray-500">อัพเดทล่าสุด</span>
-                <span>{{ formatDate(course.updated_at) }}</span>
-              </div>
-            </div>
-          </div>
         </div>
       </div>
 
@@ -212,12 +205,16 @@
             กรุณาระบุเหตุผลในการปฏิเสธคอร์ส "{{ course?.title.th }}"
           </p>
           <q-input
+            ref="rejectInputRef"
             v-model="rejectReason"
             type="textarea"
             outlined
             rows="4"
             label="เหตุผล *"
-            :rules="[val => !!val || 'กรุณาระบุเหตุผล']"
+            :rules="[
+              val => !!val || 'กรุณาระบุเหตุผล',
+              val => (val && val.length >= 10) || 'ระบุเหตุผลอย่างน้อย 10 ตัวอักษร'
+            ]"
             hide-bottom-space
             lazy-rules="ondemand"
           />
@@ -229,7 +226,6 @@
             label="ยืนยันการปฏิเสธ"
             color="negative"
             :loading="actionLoading"
-            :disable="!rejectReason.trim()"
             @click="confirmReject"
           />
         </q-card-actions>
@@ -239,7 +235,7 @@
 </template>
 
 <script setup lang="ts">
-import { useQuasar } from 'quasar';
+import { useQuasar, QInput } from 'quasar';
 import { adminService, type CourseDetailForReview } from '~/services/admin.service';
 
 definePageMeta({
@@ -258,6 +254,7 @@ const error = ref('');
 const actionLoading = ref(false);
 const showRejectModal = ref(false);
 const rejectReason = ref('');
+const rejectInputRef = ref<QInput | null>(null);
 
 // Computed
 const totalLessons = computed(() => 
@@ -415,7 +412,8 @@ const confirmApprove = () => {
 };
 
 const confirmReject = async () => {
-  if (!course.value || !rejectReason.value.trim()) return;
+  rejectInputRef.value?.validate();
+  if (rejectInputRef.value?.hasError || !course.value) return;
   
   actionLoading.value = true;
   try {

frontend_management/pages/admin/courses/pending.vue

@@ -31,33 +31,48 @@
       </div>
     </div>
 
-    <!-- Search -->
+    <!-- Search & View Toggle -->
     <div class="bg-white rounded-xl shadow-sm p-4 mb-6">
-      <q-input
-        v-model="searchQuery"
-        placeholder="ค้นหาชื่อคอร์ส, ผู้สอน..."
-        outlined
-        dense
-        bg-color="grey-1"
-      >
-        <template v-slot:prepend>
-          <q-icon name="search" />
-        </template>
-        <template v-slot:append v-if="searchQuery">
-          <q-icon name="close" class="cursor-pointer" @click="searchQuery = ''" />
-        </template>
-      </q-input>
-    </div>
+      <div class="flex gap-4 items-center">
+        <div class="flex-1">
+          <q-input
+            v-model="searchQuery"
+            placeholder="ค้นหาชื่อคอร์ส, ผู้สอน..."
+            outlined
+            dense
+            bg-color="grey-1"
+          >
+            <template v-slot:prepend>
+              <q-icon name="search" />
+            </template>
+            <template v-slot:append v-if="searchQuery">
+              <q-icon name="close" class="cursor-pointer" @click="searchQuery = ''" />
+            </template>
+          </q-input>
+        </div>
 
-    <div class="flex justify-end mb-6">
-      <q-btn-toggle
+        <q-btn-toggle
           v-model="viewMode"
           toggle-color="primary"
           :options="[
-            { label: 'การ์ด', value: 'card' },
-            { label: 'ตาราง', value: 'table' }
+            { value: 'card', slot: 'card' },
+            { value: 'table', slot: 'table' }
           ]"
-        />
+          dense
+          rounded
+          unelevated
+          class="border"
+        >
+          <template v-slot:card>
+            <q-icon name="view_stream" size="20px" />
+            <q-tooltip>มุมมองการ์ด</q-tooltip>
+          </template>
+          <template v-slot:table>
+            <q-icon name="view_list" size="20px" />
+            <q-tooltip>มุมมองตาราง</q-tooltip>
+          </template>
+        </q-btn-toggle>
+      </div>
     </div>
 
     <!-- Pending Courses List -->
@@ -215,7 +230,7 @@
 </template>
 
 <script setup lang="ts">
-import { useQuasar } from 'quasar';
+import { useQuasar, type QTableColumn } from 'quasar';
 import { adminService, type PendingCourse } from '~/services/admin.service';
 
 definePageMeta({
@@ -232,12 +247,12 @@ const loading = ref(true);
 const searchQuery = ref('');
 const viewMode = ref('table');
 
-const columns = [
+const columns: QTableColumn[] = [
   { name: 'thumbnail', label: 'รูปปก', field: 'thumbnail', align: 'left' },
-  { name: 'title', label: 'ชื่อคอร์ส', field: (row: PendingCourse) => row.title.th, align: 'left', sortable: true },
-  { name: 'instructor', label: 'ผู้สอน', field: (row: PendingCourse) => getPrimaryInstructor(row), align: 'left', sortable: true },
+  { name: 'title', label: 'ชื่อคอร์ส', field: (row: any) => row.title.th, align: 'left', sortable: true },
+  { name: 'instructor', label: 'ผู้สอน', field: (row: any) => getPrimaryInstructor(row), align: 'left', sortable: true },
   { name: 'stats', label: 'จำนวนบท', field: 'stats', align: 'center' },
-  { name: 'submitted_at', label: 'วันที่ส่ง', field: (row: PendingCourse) => row.latest_submission?.created_at, align: 'left', sortable: true },
+  { name: 'submitted_at', label: 'วันที่ส่ง', field: (row: any) => row.latest_submission?.created_at, align: 'left', sortable: true },
   { name: 'actions', label: '', field: 'actions', align: 'center' }
 ];
 

frontend_management/pages/admin/index.vue

@@ -146,7 +146,7 @@
       <div class="card bg-white rounded-lg shadow-sm">
         <div class="p-6 border-b flex justify-between items-center">
           <h2 class="text-lg font-semibold text-gray-900">กิจกรรมล่าสุด</h2>
-           <q-btn flat color="primary" label="ดูทั้งหมด" to="/admin/audit-logs" size="sm" />
+           <q-btn flat color="primary" label="ดูทั้งหมด" to="/admin/audit-log" size="sm" />
         </div>
         <div class="divide-y">
              <div v-if="loading" class="p-8 text-center text-gray-500">

frontend_management/pages/admin/recommended-courses/index.vue

@@ -104,7 +104,7 @@
        <!-- View Details Dialog -->
       <q-dialog v-model="showDialog" maximized transition-show="slide-up" transition-hide="slide-down">
         <q-card>
-          <q-bar class="bg-primary text-white">
+          <q-bar class="bg-primary-500 text-white">
             <q-space />
             <q-btn dense flat icon="close" v-close-popup>
               <q-tooltip class="bg-white text-primary">Close</q-tooltip>
@@ -153,7 +153,7 @@
                    <!-- Category -->
                    <div class="bg-gray-50 p-4 rounded-lg gap-2">
                       <div class="font-bold mb-2">หมวดหมู่ (Category):</div>
-                      <div class="mb-2">{{ selectedCourse.category.name.th }} ({{ selectedCourse.category.name.en }})</div>
+                      <div class="text-gray-700 mb-2">{{ selectedCourse.category.name.th }} ({{ selectedCourse.category.name.en }})</div>
                    </div>
 
                    <!-- Instructors -->
@@ -164,7 +164,7 @@
                              <q-icon name="person" />
                          </q-avatar>
                          <div>
-                            <div class="font-medium">{{ inst.user.username }}</div>
+                            <div class="font-medium text-gray-700">{{ inst.user.username }}</div>
                             <div class="text-xs text-gray-500" v-if="inst.is_primary">(Primary)</div>
                          </div>
                       </div>
@@ -183,6 +183,34 @@
                    </div>
                 </div>
              </div>
+
+             <!-- Course Structure -->
+             <div v-if="selectedCourse.chapters && selectedCourse.chapters.length > 0" class="mt-6">
+               <div class="font-bold text-lg mb-3">โครงสร้างหลักสูตร (Course Structure)</div>
+               <div class="space-y-3">
+                 <q-expansion-item
+                   v-for="(chapter, index) in selectedCourse.chapters"
+                   :key="chapter.id"
+                   :label="`บทที่ ${index + 1}: ${chapter.title.th}`"
+                   :caption="`${chapter.lessons.length} บทเรียน`"
+                   header-class="bg-gray-50 rounded-lg"
+                   expand-icon-class="text-primary"
+                 >
+                   <div class="pl-4 pt-2">
+                     <div
+                       v-for="(lesson, lessonIndex) in chapter.lessons"
+                       :key="lesson.id"
+                       class="flex items-center gap-3 py-2 border-b last:border-b-0"
+                     >
+                       <q-icon name="article" color="primary" size="20px" />
+                       <span class="text-gray-700">{{ lessonIndex + 1 }}. {{ lesson.title.th }}</span>
+                       <span v-if="lesson.title.en" class="text-gray-400 text-xs ml-auto">{{ lesson.title.en }}</span>
+                     </div>
+                   </div>
+                 </q-expansion-item>
+               </div>
+             </div>
+
           </q-card-section>
           
           <!-- Inner Loading -->
@@ -237,7 +265,7 @@ const columns = [
   { name: 'category', label: 'Category', field: (row: RecommendedCourse) => row.category.name.th, sortable: true, align: 'left' as const },
   { name: 'price', label: 'Price', field: 'price', sortable: true, align: 'right' as const },
   { name: 'is_recommended', label: 'Recommended', field: 'is_recommended', sortable: true, align: 'center' as const },
-  //{ name: 'actions', label: 'Actions', field: 'actions', align: 'center' as const },
+  { name: 'actions', label: 'Actions', field: 'actions', align: 'center' as const },
 ];
 
 const fetchCourses = async () => {
@@ -248,7 +276,8 @@ const fetchCourses = async () => {
     console.error('Error fetching courses:', error);
     $q.notify({
       type: 'negative',
-      message: 'ไม่สามารถโหลดข้อมูลคอร์สได้'
+      message: 'ไม่สามารถโหลดข้อมูลคอร์สได้',
+      position: 'top'
     });
   } finally {
     loading.value = false;
@@ -265,7 +294,8 @@ const viewCourse = async (id: number) => {
       console.error('Error fetching course details:', error);
       $q.notify({
          type: 'negative',
-         message: 'ไม่สามารถโหลดข้อมูลรายละเอียดคอร์สได้'
+         message: 'ไม่สามารถโหลดข้อมูลรายละเอียดคอร์สได้',
+         position: 'top'
       });
       showDialog.value = false;
    } finally {
@@ -278,7 +308,8 @@ const handleToggleRecommendation = async (course: RecommendedCourse, isRecommend
     await adminService.toggleCourseRecommendation(course.id, isRecommended);
     $q.notify({
       type: 'positive',
-      message: isRecommended ? 'เพิ่มคอร์สแนะนำสำร็จ' : 'ยกเลิกคอร์สแนะนำสำเร็จ'
+      message: isRecommended ? 'เพิ่มคอร์สแนะนำสำร็จ' : 'ยกเลิกคอร์สแนะนำสำเร็จ',
+      position: 'top'
     });
   } catch (error) {
     console.error('Error toggling recommendation:', error);
@@ -286,7 +317,8 @@ const handleToggleRecommendation = async (course: RecommendedCourse, isRecommend
     course.is_recommended = !isRecommended;
     $q.notify({
       type: 'negative',
-      message: 'เกิดข้อผิดพลาดในการบันทึกข้อมูล'
+      message: 'เกิดข้อผิดพลาดในการบันทึกข้อมูล',
+      position: 'top'
     });
   }
 };

frontend_management/pages/admin/users/index.vue

@@ -216,7 +216,7 @@
 
 <script setup lang="ts">
 import { useQuasar } from 'quasar';
-import { adminService, type AdminUserResponse } from '~/services/admin.service';
+import { adminService, type AdminUserResponse, type RoleResponse } from '~/services/admin.service';
 import { useAuthStore } from '~/stores/auth';
 
 definePageMeta({
@@ -228,6 +228,7 @@ const $q = useQuasar();
 
 // Data
 const users = ref<AdminUserResponse[]>([]);
+const roles = ref<RoleResponse[]>([]);
 const loading = ref(true);
 const searchQuery = ref('');
 const filterRole = ref<string | null>(null);
@@ -286,6 +287,14 @@ const filteredUsers = computed(() => {
 });
 
 // Methods
+const fetchRoles = async () => {
+  try {
+    roles.value = await adminService.getRoles();
+  } catch (error) {
+    console.error('Failed to fetch roles:', error);
+  }
+};
+
 const fetchUsers = async () => {
   loading.value = true;
   try {
@@ -328,24 +337,32 @@ const viewUser = (user: AdminUserResponse) => {
   showViewModal.value = true;
 };
 
-const changeRole = (user: AdminUserResponse) => {
-  const roleIds: Record<string, number> = {
-    INSTRUCTOR: 1,
-    STUDENT: 2,
-    ADMIN: 3
+const getRoleLabel = (code: string): string => {
+  const labels: Record<string, string> = {
+    INSTRUCTOR: 'Instructor',
+    STUDENT: 'Student',
+    ADMIN: 'Admin'
   };
+  return labels[code] || code;
+};
+
+const changeRole = (user: AdminUserResponse) => {
+  // Find current role ID from fetched roles
+  const currentRole = roles.value.find(r => r.code === user.role.code);
   
+  // Build items from API roles
+  const roleItems = roles.value.map(r => ({
+    label: getRoleLabel(r.code),
+    value: r.id
+  }));
+
   $q.dialog({
     title: 'เปลี่ยน Role',
     message: `เลือก Role ใหม่สำหรับ ${user.profile.first_name}`,
     options: {
       type: 'radio',
-      model: roleIds[user.role.code] as any,
-      items: [
-        { label: 'Instructor', value: 1 },
-        { label: 'Student', value: 2 },
-        { label: 'Admin', value: 3 }
-      ]
+      model: (currentRole?.id ?? 0) as any,
+      items: roleItems
     },
     cancel: true,
     persistent: true
@@ -415,6 +432,7 @@ const exportExcel = () => {
 
 // Lifecycle
 onMounted(() => {
+  fetchRoles();
   fetchUsers();
 });
 </script>

frontend_management/pages/instructor/courses/index.vue

@@ -39,8 +39,8 @@
 
     <!-- Filter Bar -->
     <div class="bg-white rounded-xl shadow-sm p-4 mb-6">
-      <div class="grid grid-cols-1 md:grid-cols-3 gap-4">
-        <div class="md:col-span-2">
+      <div class="flex gap-4 items-center">
+        <div class="flex-1">
           <q-input
             v-model="searchQuery"
             placeholder="ค้นหาหลักสูตร..."
@@ -62,15 +62,39 @@
           dense
           emit-value
           map-options
+          style="min-width: 160px"
         />
+
+        <q-btn-toggle
+          v-model="viewMode"
+          toggle-color="primary"
+          :options="[
+            { value: 'card', slot: 'card' },
+            { value: 'table', slot: 'table' }
+          ]"
+          dense
+          rounded
+          unelevated
+          class="border"
+        >
+          <template v-slot:card>
+            <q-icon name="grid_view" size="20px" />
+            <q-tooltip>มุมมองการ์ด</q-tooltip>
+          </template>
+          <template v-slot:table>
+            <q-icon name="view_list" size="20px" />
+            <q-tooltip>มุมมองตาราง</q-tooltip>
+          </template>
+        </q-btn-toggle>
       </div>
     </div>
 
-    <!-- Courses Grid -->
+    <!-- Loading -->
     <div v-if="loading" class="flex justify-center py-10">
       <q-spinner-dots size="50px" color="primary" />
     </div>
 
+    <!-- Empty State -->
     <div v-else-if="filteredCourses.length === 0" class="bg-white rounded-xl shadow-sm p-10 text-center">
       <q-icon name="school" size="60px" color="grey-5" class="mb-4" />
       <p class="text-gray-500 text-lg">ยังไม่มีหลักสูตร</p>
@@ -82,7 +106,8 @@
       />
     </div>
 
-    <div v-else class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-6">
+    <!-- Card View -->
+    <div v-else-if="viewMode === 'card'" class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-6">
       <div
         v-for="course in filteredCourses"
         :key="course.id"
@@ -134,15 +159,6 @@
           >
             <q-tooltip>ดูรายละเอียด</q-tooltip>
           </q-btn>
-          <!-- <q-btn
-            flat
-            dense
-            icon="edit"
-            color="primary"
-            @click="navigateTo(`/instructor/courses/${course.id}/edit`)"
-          >
-            <q-tooltip>แก้ไข</q-tooltip>
-          </q-btn> -->
           <q-space />
           <q-btn flat round dense icon="more_vert">
             <q-menu>
@@ -167,6 +183,94 @@
       </div>
     </div>
 
+    <!-- Table View -->
+    <div v-else class="bg-white rounded-xl shadow-sm overflow-hidden">
+      <q-table
+        :rows="filteredCourses"
+        :columns="tableColumns"
+        row-key="id"
+        flat
+        :pagination="tablePagination"
+        :rows-per-page-options="[10, 20, 50, 0]"
+        @update:pagination="tablePagination = $event"
+      >
+        <!-- Thumbnail + Title -->
+        <template v-slot:body-cell-title="props">
+          <q-td :props="props">
+            <div class="flex items-center gap-3">
+              <div class="w-16 h-10 rounded overflow-hidden flex-shrink-0 bg-gradient-to-br from-primary-400 to-primary-600 flex items-center justify-center">
+                <img
+                  v-if="props.row.thumbnail_url"
+                  :src="props.row.thumbnail_url"
+                  :alt="props.row.title.th"
+                  class="w-full h-full object-cover"
+                  @error="($event.target as HTMLImageElement).style.display = 'none'"
+                />
+                <q-icon v-else name="school" size="20px" color="white" />
+              </div>
+              <div class="min-w-0">
+                <div class="font-medium text-gray-900 truncate">{{ props.row.title.th }}</div>
+                <div class="text-xs text-gray-400 truncate">{{ props.row.title.en }}</div>
+              </div>
+            </div>
+          </q-td>
+        </template>
+
+        <!-- Status Badge -->
+        <template v-slot:body-cell-status="props">
+          <q-td :props="props">
+            <q-badge :color="getStatusColor(props.row.status)">
+              {{ getStatusLabel(props.row.status) }}
+            </q-badge>
+          </q-td>
+        </template>
+
+        <!-- Price -->
+        <template v-slot:body-cell-price="props">
+          <q-td :props="props">
+            <span class="font-medium" :class="props.row.is_free ? 'text-green-600' : 'text-primary-600'">
+              {{ props.row.is_free ? 'ฟรี' : `฿${parseFloat(props.row.price).toLocaleString()}` }}
+            </span>
+          </q-td>
+        </template>
+
+        <!-- Date -->
+        <template v-slot:body-cell-created_at="props">
+          <q-td :props="props">
+            {{ formatDate(props.row.created_at) }}
+          </q-td>
+        </template>
+
+        <!-- Actions -->
+        <template v-slot:body-cell-actions="props">
+          <q-td :props="props">
+            <q-btn flat round dense icon="visibility" color="grey" size="sm" @click="handleViewDetails(props.row)">
+              <q-tooltip>ดูรายละเอียด</q-tooltip>
+            </q-btn>
+            <q-btn flat round dense icon="more_vert" size="sm">
+              <q-menu>
+                <q-list style="min-width: 150px">
+                  <q-item clickable v-close-popup @click="duplicateCourse(props.row)">
+                    <q-item-section avatar>
+                      <q-icon name="content_copy" />
+                    </q-item-section>
+                    <q-item-section>ทำสำเนา</q-item-section>
+                  </q-item>
+                  <q-separator />
+                  <q-item clickable v-close-popup @click="confirmDelete(props.row)">
+                    <q-item-section avatar>
+                      <q-icon name="delete" color="negative" />
+                    </q-item-section>
+                    <q-item-section class="text-negative">ลบ</q-item-section>
+                  </q-item>
+                </q-list>
+              </q-menu>
+            </q-btn>
+          </q-td>
+        </template>
+      </q-table>
+    </div>
+
     <!-- Rejection Details Dialog -->
     <q-dialog v-model="rejectionDialog">
       <q-card style="min-width: 400px">
@@ -196,6 +300,47 @@
         </q-card-actions>
       </q-card>
     </q-dialog>
+
+    <!-- Clone Course Dialog -->
+    <q-dialog v-model="cloneDialog">
+      <q-card style="min-width: 400px">
+        <q-card-section class="row items-center q-pb-none">
+          <div class="text-h6">ทำสำเนาหลักสูตร</div>
+          <q-space />
+          <q-btn icon="close" flat round dense v-close-popup />
+        </q-card-section>
+
+        <q-card-section>
+          <div class="mb-4">
+            กรุณาระบุชื่อสำหรับหลักสูตรใหม่
+          </div>
+          <q-input
+            v-model="cloneCourseTitleTh"
+            label="ชื่อหลักสูตร (ภาษาไทย)"
+            outlined
+            autofocus
+            class="mb-4"
+            :rules="[val => !!val || 'กรุณากรอกชื่อหลักสูตรภาษาไทย']"
+          />
+          <q-input
+            v-model="cloneCourseTitleEn"
+            label="Course Name (English)"
+            outlined
+            :rules="[val => !!val || 'Please enter course name in English']"
+          />
+        </q-card-section>
+
+        <q-card-actions align="right" class="text-primary q-pt-none q-pb-md q-px-md">
+          <q-btn flat label="ยกเลิก" v-close-popup color="grey" />
+          <q-btn 
+            label="ยืนยันการทำสำเนา" 
+            color="primary" 
+            @click="confirmClone"
+            :loading="cloneLoading"
+          />
+        </q-card-actions>
+      </q-card>
+    </q-dialog>
   </div>
 </template>
 
@@ -215,6 +360,17 @@ const courses = ref<CourseResponse[]>([]);
 const loading = ref(true);
 const searchQuery = ref('');
 const filterStatus = ref<string | null>(null);
+const viewMode = ref<'card' | 'table'>('card');
+
+// Table config
+const tablePagination = ref({ page: 1, rowsPerPage: 10 });
+const tableColumns = [
+  { name: 'title', label: 'หลักสูตร', field: 'title', align: 'left' as const, sortable: true },
+  { name: 'status', label: 'สถานะ', field: 'status', align: 'center' as const, sortable: true },
+  { name: 'price', label: 'ราคา', field: 'price', align: 'center' as const, sortable: true },
+  { name: 'created_at', label: 'วันที่สร้าง', field: 'created_at', align: 'center' as const, sortable: true },
+  { name: 'actions', label: 'จัดการ', field: 'actions', align: 'center' as const }
+];
 
 // Status options
 const statusOptions = [
@@ -222,7 +378,8 @@ const statusOptions = [
   { label: 'เผยแพร่แล้ว', value: 'APPROVED' },
   { label: 'รอตรวจสอบ', value: 'PENDING' },
   { label: 'แบบร่าง', value: 'DRAFT' },
-  { label: 'ถูกปฏิเสธ', value: 'REJECTED' }
+  { label: 'ถูกปฏิเสธ', value: 'REJECTED' },
+  //{ label: 'เก็บถาวร', value: 'ARCHIVED' }
 ];
 
 // Stats
@@ -234,7 +391,7 @@ const stats = computed(() => ({
   rejected: courses.value.filter(c => c.status === 'REJECTED').length
 }));
 
-// Filtered courses
+// Filtered courses (search only, status is handled server-side)
 const filteredCourses = computed(() => {
   let result = courses.value;
 
@@ -246,10 +403,6 @@ const filteredCourses = computed(() => {
     );
   }
 
-  if (filterStatus.value) {
-    result = result.filter(course => course.status === filterStatus.value);
-  }
-
   return result;
 });
 
@@ -257,7 +410,7 @@ const filteredCourses = computed(() => {
 const fetchCourses = async () => {
   loading.value = true;
   try {
-    courses.value = await instructorService.getCourses();
+    courses.value = await instructorService.getCourses(filterStatus.value || undefined);
   } catch (error) {
     $q.notify({
       type: 'negative',
@@ -269,12 +422,18 @@ const fetchCourses = async () => {
   }
 };
 
+// Re-fetch when status filter changes
+watch(filterStatus, () => {
+  fetchCourses();
+});
+
 const getStatusColor = (status: string) => {
   const colors: Record<string, string> = {
     APPROVED: 'green',
     PENDING: 'orange',
     DRAFT: 'grey',
-    REJECTED: 'red'
+    REJECTED: 'red',
+    ARCHIVED: 'blue-grey'
   };
   return colors[status] || 'grey';
 };
@@ -284,7 +443,8 @@ const getStatusLabel = (status: string) => {
     APPROVED: 'เผยแพร่แล้ว',
     PENDING: 'รอตรวจสอบ',
     DRAFT: 'แบบร่าง',
-    REJECTED: 'ถูกปฏิเสธ'
+    REJECTED: 'ถูกปฏิเสธ',
+    ARCHIVED: 'เก็บถาวร'
   };
   return labels[status] || status;
 };
@@ -296,15 +456,45 @@ const formatDate = (date: string) => {
     year: '2-digit'
   });
 };
+// Clone Dialog
+const cloneDialog = ref(false);
+const cloneLoading = ref(false);
+const cloneCourseTitleTh = ref('');
+const cloneCourseTitleEn = ref('');
+const courseToClone = ref<CourseResponse | null>(null);
 
 const duplicateCourse = (course: CourseResponse) => {
-  $q.notify({
-    type: 'info',
-    message: `กำลังทำสำเนา "${course.title.th}"...`,
-    position: 'top'
-  });
+  courseToClone.value = course;
+  cloneCourseTitleTh.value = `${course.title.th} (Copy)`;
+  cloneCourseTitleEn.value = `${course.title.en} (Copy)`;
+  cloneDialog.value = true;
 };
 
+const confirmClone = async () => {
+  if (!courseToClone.value || !cloneCourseTitleTh.value || !cloneCourseTitleEn.value) return;
+
+  cloneLoading.value = true;
+  try {
+    const response = await instructorService.cloneCourse(courseToClone.value.id, cloneCourseTitleTh.value, cloneCourseTitleEn.value);
+    $q.notify({
+      type: 'positive',
+      message: response.message || 'ทำสำเนาหลักสูตรสำเร็จ',
+      position: 'top'
+    });
+    cloneDialog.value = false;
+    fetchCourses(); // Refresh list
+  } catch (error: any) {
+    $q.notify({
+      type: 'negative',
+      message: error.data?.message || 'ไม่สามารถทำสำเนาหลักสูตรได้',
+      position: 'top'
+    });
+  } finally {
+    cloneLoading.value = false;
+  }
+};
+
+
 const confirmDelete = (course: CourseResponse) => {
   $q.dialog({
     title: 'ยืนยันการลบ',

frontend_management/services/admin.service.ts

@@ -296,6 +296,15 @@ export interface RecommendedCourse {
     };
     chapters_count: number;
     lessons_count: number;
+    chapters?: {
+        id: number;
+        title: { th: string; en: string };
+        sort_order: number;
+        lessons: {
+            id: number;
+            title: { th: string; en: string };
+        }[];
+    }[];
 }
 
 export interface RecommendedCoursesListResponse {
@@ -311,7 +320,25 @@ const getAuthToken = (): string => {
     return tokenCookie.value || '';
 };
 
+// Role interface
+export interface RoleResponse {
+    id: number;
+    code: string;
+}
+
 export const adminService = {
+    async getRoles(): Promise<RoleResponse[]> {
+        const config = useRuntimeConfig();
+        const token = getAuthToken();
+        const response = await $fetch<{ roles: RoleResponse[] }>('/api/user/roles', {
+            baseURL: config.public.apiBaseUrl as string,
+            headers: {
+                Authorization: `Bearer ${token}`
+            }
+        });
+        return response.roles;
+    },
+
     async getUsers(): Promise<AdminUserResponse[]> {
         const config = useRuntimeConfig();
         const token = getAuthToken();

frontend_management/services/instructor.service.ts

@@ -208,8 +208,12 @@ const authRequest = async <T>(
 };
 
 export const instructorService = {
-    async getCourses(): Promise<CourseResponse[]> {
-        const response = await authRequest<CoursesListResponse>('/api/instructors/courses');
+    async getCourses(status?: string): Promise<CourseResponse[]> {
+        let url = '/api/instructors/courses';
+        if (status) {
+            url += `?status=${status}`;
+        }
+        const response = await authRequest<CoursesListResponse>(url);
         return response.data;
     },
 
@@ -305,6 +309,18 @@ export const instructorService = {
         return await authRequest<ApiResponse<void>>(`/api/instructors/courses/set-draft/${courseId}`, { method: 'POST' });
     },
 
+    async cloneCourse(courseId: number, titleTh: string, titleEn: string): Promise<ApiResponse<CourseResponse>> {
+        return await authRequest<ApiResponse<CourseResponse>>(`/api/instructors/courses/${courseId}/clone`, {
+            method: 'POST',
+            body: {
+                title: {
+                    en: titleEn,
+                    th: titleTh
+                }
+            }
+        });
+    },
+
     async getEnrolledStudents(
         courseId: number,
         page: number = 1,