/* ============================================
   App-Style Layout (Student, Instructor, Admin)
   ============================================
   
   This CSS file provides consistent layout styles across:
   - Student pages (using student layout)
   - Instructor pages (using instructor layout)
   - Admin pages (using admin layout)
   
   All three layouts share:
   - Sidebar width: 240px (--sidebar-width)
   - Header height: 64px (--header-height)
   - Content padding: 32px (--content-padding = --spacing-xl)
   - Card spacing: 24px (--card-gap = --spacing-lg)
   
   ============================================ */

/* Layout Variables - Consistent across student, instructor, and admin */
:root {
    --sidebar-width: 240px;
    --header-height: 64px;
    /* Content padding - consistent across all app-style layouts */
    --content-padding: var(--spacing-xl);
    /* Card spacing - consistent gap between cards */
    --card-gap: var(--spacing-lg);
}

/* Student App Container */
.student-app {
    display: flex;
    height: 100vh;
    overflow: hidden;
    background-color: var(--color-gray-50);
}

/* Sidebar */
.student-sidebar {
    width: var(--sidebar-width);
    flex-shrink: 0;
    background-color: white;
    border-right: 1px solid var(--color-gray-200);
    overflow-y: auto;
    overflow-x: hidden;
}

.student-sidebar::-webkit-scrollbar {
    width: 6px;
}

.student-sidebar::-webkit-scrollbar-track {
    background: transparent;
}

.student-sidebar::-webkit-scrollbar-thumb {
    background: var(--color-gray-300);
    border-radius: var(--radius-full);
}

.student-sidebar::-webkit-scrollbar-thumb:hover {
    background: var(--color-gray-400);
}

/* Sidebar Container */
.student-sidebar-container {
    padding: var(--spacing-lg);
    height: 100%;
    display: flex;
    flex-direction: column;
}

/* Sidebar Brand/Logo */
.student-sidebar-brand {
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--color-gray-200);
    margin-bottom: var(--spacing-xl);
}

.student-sidebar-logo {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-gray-900);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    transition: color var(--transition-fast);
}

.student-sidebar-logo:hover {
    color: var(--color-primary);
}

.student-sidebar-logo i {
    font-size: var(--font-size-2xl);
    color: var(--color-primary);
}

/* Sidebar Groups Container */
.student-sidebar-groups {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2xl);
    overflow-y: auto;
}

/* Sidebar Group */
.student-sidebar-group {
    flex-shrink: 0;
}

.student-sidebar-group-bottom {
    margin-top: auto;
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-gray-200);
}

/* Sidebar Group Label */
.student-sidebar-group-label {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-md);
    padding: 0 var(--spacing-md);
}

/* Sidebar Group Items */
.student-sidebar-group-items {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

/* Navigation Items */
.nav-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--color-gray-700);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-fast);
    margin: 0 var(--spacing-xs);
    position: relative;
}

.nav-item:hover {
    background-color: var(--color-gray-100);
    color: var(--color-gray-900);
}

.nav-item-active {
    background-color: var(--color-primary-bg);
    color: var(--color-primary);
    font-weight: var(--font-weight-semibold);
}

.nav-item-active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 60%;
    background-color: var(--color-primary);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.nav-item-active:hover {
    background-color: var(--color-primary-bg);
    color: var(--color-primary);
}

.nav-item i {
    font-size: var(--font-size-lg);
    width: 20px;
    text-align: center;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-item span {
    flex: 1;
    line-height: 1.4;
}

/* Main Area */
.student-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-width: 0;
}

/* Header */
.student-header {
    height: var(--header-height);
    flex-shrink: 0;
    background-color: white;
    border-bottom: 1px solid var(--color-gray-200);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

/* Header Content Container */
.student-header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    padding: 0 var(--spacing-xl);
}

/* Header Title */
.student-header-title {
    flex-shrink: 0;
}

.student-header-title h1 {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-900);
    margin: 0;
    line-height: 1.2;
}

/* Header Actions Container */
.student-header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-shrink: 0;
}

/* Header Search */
.student-header-search {
    display: flex;
    align-items: center;
}

.student-header-search input {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    width: 200px;
    transition: border-color var(--transition-fast);
}

.student-header-search input:focus {
    outline: none;
    border-color: var(--color-primary);
}

/* Header Icon Button (Notifications) */
.student-header-icon-btn {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    color: var(--color-gray-700);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: background-color var(--transition-fast);
}

.student-header-icon-btn:hover {
    background-color: var(--color-gray-100);
    color: var(--color-gray-900);
}

.student-header-icon-btn i {
    font-size: var(--font-size-xl);
}

/* Header Badge (Unread Count) */
.student-header-badge {
    display: none;
    position: absolute;
    top: 4px;
    right: 4px;
    background: var(--color-error);
    color: white;
    border-radius: var(--radius-full);
    min-width: 18px;
    height: 18px;
    padding: 0 4px;
    font-size: var(--font-size-xs);
    align-items: center;
    justify-content: center;
    font-weight: var(--font-weight-bold);
    border: 2px solid white;
}

/* Header Profile */
.student-header-profile {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.student-header-profile:hover {
    background-color: var(--color-gray-100);
}

/* Header Avatar */
.student-header-avatar {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    object-fit: cover;
    flex-shrink: 0;
}

.student-header-avatar-placeholder {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
}

/* Header Name */
.student-header-name {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-700);
    white-space: nowrap;
}

/* Content Area - Consistent padding across all app-style layouts */
.student-content {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    background-color: var(--color-gray-50);
    padding: var(--content-padding);
}

/* Hide duplicate page titles - header shows title */
.student-content > .container > h1:first-child,
.student-content > h1:first-child {
    display: none;
}

.student-content::-webkit-scrollbar {
    width: 8px;
}

.student-content::-webkit-scrollbar-track {
    background: transparent;
}

.student-content::-webkit-scrollbar-thumb {
    background: var(--color-gray-300);
    border-radius: var(--radius-full);
}

.student-content::-webkit-scrollbar-thumb:hover {
    background: var(--color-gray-400);
}

/* Ensure content containers have proper spacing */
.student-content .container {
    max-width: 100%;
    padding: 0;
}

.student-content > .container {
    padding: 0;
}

/* Remove padding from containers inside student-content to prevent double padding */
.student-content .container-social,
.student-content .container {
    padding-left: 0;
    padding-right: 0;
}

/* Container-social utility - same as container but for social/feed layouts */
.container-social {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0;
}

/* Inside student-content, container-social should not add padding */
.student-content .container-social {
    padding: 0;
}

/* Dark mode support */
[data-theme="dark"] .student-app {
    background-color: var(--bg-primary);
}

[data-theme="dark"] .student-sidebar {
    background-color: var(--bg-secondary);
    border-right-color: var(--border-color);
}

[data-theme="dark"] .student-sidebar-brand {
    border-bottom-color: var(--border-color);
}

[data-theme="dark"] .student-sidebar-logo {
    color: var(--text-primary);
}

[data-theme="dark"] .student-sidebar-group-label {
    color: var(--text-secondary);
}

[data-theme="dark"] .student-sidebar-group-bottom {
    border-top-color: var(--border-color);
}

[data-theme="dark"] .student-header {
    background-color: var(--bg-secondary);
    border-bottom-color: var(--border-color);
}

[data-theme="dark"] .student-header-title h1 {
    color: var(--text-primary);
}

[data-theme="dark"] .student-header-search input {
    background-color: var(--bg-tertiary);
    border-color: var(--border-color);
    color: var(--text-primary);
}

[data-theme="dark"] .student-header-search input:focus {
    border-color: var(--color-primary-light);
}

[data-theme="dark"] .student-header-icon-btn {
    color: var(--text-secondary);
}

[data-theme="dark"] .student-header-icon-btn:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

[data-theme="dark"] .student-header-profile:hover {
    background-color: var(--bg-tertiary);
}

[data-theme="dark"] .student-header-name {
    color: var(--text-secondary);
}

/* ============================================
   Student Dashboard Styles
   ============================================ */

/* Dashboard Container - Deprecated, use .page-container instead */
.dashboard-container {
    max-width: 100%;
    padding: 0;
}

/* Dashboard Hero Section */
.dashboard-hero {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-2xl);
    padding: var(--spacing-xl) 0;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    min-width: 0;
}

.dashboard-hero-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    flex: 1;
    min-width: 0;
}

.dashboard-hero-avatar {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-full);
    object-fit: cover;
    box-shadow: var(--shadow-md);
    flex-shrink: 0;
}

.dashboard-hero-avatar-placeholder {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
}

.dashboard-hero-text {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    min-width: 0;
    flex: 1;
}

.dashboard-hero-title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-gray-900);
    margin: 0;
    line-height: 1.2;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.dashboard-hero-subtitle {
    color: var(--color-gray-600);
    font-size: var(--font-size-sm);
    margin: 0;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

/* Dashboard Actions Grid */
.dashboard-actions-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
    min-width: 0;
}

.dashboard-action-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    text-decoration: none;
    transition: all var(--transition-fast);
    border-radius: var(--radius-lg);
    background: white;
    box-shadow: var(--shadow-sm);
    min-width: 0;
    height: 100%;
}

.dashboard-action-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: var(--color-primary);
}

.dashboard-action-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    flex-shrink: 0;
}

.dashboard-action-icon-primary {
    background: var(--color-primary-bg);
    color: var(--color-primary);
}

.dashboard-action-icon-success {
    background: var(--color-success-bg);
    color: var(--color-success);
}

.dashboard-action-icon-warning {
    background: var(--color-warning-bg);
    color: var(--color-warning);
}

.dashboard-action-icon-info {
    background: var(--color-info-bg);
    color: var(--color-info);
}

.dashboard-action-label {
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-900);
    font-size: var(--font-size-sm);
    word-wrap: break-word;
    overflow-wrap: break-word;
    text-align: center;
}

.dashboard-action-card:hover .dashboard-action-label {
    color: var(--color-primary);
}

/* Dashboard Content Grid */
.dashboard-content-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    min-width: 0;
}

.dashboard-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.dashboard-card-tools {
    grid-column: span 2;
}

.dashboard-card-announcements {
    grid-column: span 2;
}

.dashboard-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
}

.dashboard-card-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-900);
    margin: 0;
}

.dashboard-card-title i {
    color: var(--color-gray-500);
    font-size: var(--font-size-lg);
}

.dashboard-card-link {
    font-size: var(--font-size-sm);
    color: var(--color-primary);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    transition: color var(--transition-fast);
}

.dashboard-card-link:hover {
    color: var(--color-primary-dark);
}

/* Dashboard Tools Grid */
.dashboard-tools-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-sm);
}

.dashboard-tool-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--color-gray-700);
    text-decoration: none;
    border-radius: var(--radius-md);
    background: var(--color-gray-50);
    transition: all var(--transition-fast);
    white-space: nowrap;
    justify-content: center;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
}

.dashboard-tool-link:hover {
    background: var(--color-gray-100);
    color: var(--color-gray-900);
}

.dashboard-tool-link i {
    font-size: var(--font-size-base);
}

.dashboard-tool-badge {
    display: none;
    margin-left: 4px;
}

/* Dashboard Announcements */
.dashboard-announcements-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.dashboard-announcement-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--color-gray-100);
    cursor: pointer;
    transition: padding-left var(--transition-fast);
}

.dashboard-announcement-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.dashboard-announcement-item:hover {
    padding-left: var(--spacing-xs);
}

.dashboard-announcement-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-sm);
}

.dashboard-announcement-title {
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-sm);
    color: var(--color-gray-900);
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.dashboard-announcement-badge {
    transform: scale(0.8);
    flex-shrink: 0;
}

.dashboard-announcement-date {
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
}

.dashboard-empty-state {
    text-align: center;
    color: var(--color-gray-500);
    padding: var(--spacing-xl) 0;
    font-size: var(--font-size-sm);
}

/* Dark Mode Support */
[data-theme="dark"] .dashboard-hero-title {
    color: var(--text-primary);
}

[data-theme="dark"] .dashboard-hero-subtitle {
    color: var(--text-secondary);
}

[data-theme="dark"] .dashboard-action-card {
    background: var(--bg-secondary);
}

[data-theme="dark"] .dashboard-action-label {
    color: var(--text-primary);
}

[data-theme="dark"] .dashboard-card {
    background: var(--bg-secondary);
}

[data-theme="dark"] .dashboard-card-title {
    color: var(--text-primary);
}

[data-theme="dark"] .dashboard-tool-link {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

[data-theme="dark"] .dashboard-tool-link:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

[data-theme="dark"] .dashboard-announcement-item {
    border-bottom-color: var(--border-color);
}

[data-theme="dark"] .dashboard-announcement-title {
    color: var(--text-primary);
}

[data-theme="dark"] .dashboard-empty-state {
    color: var(--text-secondary);
}

/* Responsive Dashboard Styles */
@media (max-width: 1024px) {
    .dashboard-actions-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .dashboard-content-grid {
        grid-template-columns: 1fr;
    }

    .dashboard-card-tools {
        grid-column: span 1;
    }

    .dashboard-tools-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .dashboard-hero {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-lg);
    }

    .dashboard-hero-content {
        width: 100%;
    }

    .dashboard-actions-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }

    .dashboard-tools-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .dashboard-actions-grid {
        grid-template-columns: 1fr;
    }

    .dashboard-tools-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 375px) {
    .page-header {
        margin-bottom: var(--spacing-lg);
    }
    
    .page-header-title {
        font-size: var(--font-size-2xl);
    }
    
    .page-header-subtitle {
        font-size: var(--font-size-sm);
    }
    
    .dashboard-hero {
        flex-direction: column;
        align-items: flex-start;
        padding: var(--spacing-md) 0;
    }
    
    .dashboard-hero-content {
        width: 100%;
    }
    
    .dashboard-hero-title {
        font-size: var(--font-size-xl);
    }
    
    .dashboard-hero-subtitle {
        font-size: var(--font-size-xs);
    }
    
    .dashboard-hero-avatar,
    .dashboard-hero-avatar-placeholder {
        width: 64px;
        height: 64px;
        font-size: var(--font-size-2xl);
    }
    
    .dashboard-actions-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .dashboard-action-card {
        padding: var(--spacing-md);
    }
    
    .dashboard-action-icon {
        width: 48px;
        height: 48px;
        font-size: var(--font-size-lg);
    }
    
    .dashboard-action-label {
        font-size: var(--font-size-xs);
    }
    
    .dashboard-content-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .dashboard-card {
        padding: var(--spacing-md);
    }
    
    .dashboard-card-title {
        font-size: var(--font-size-sm);
    }
    
    .dashboard-tools-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xs);
    }
    
    .dashboard-tool-link {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: var(--font-size-xs);
        white-space: normal;
        word-wrap: break-word;
    }
    
    .dashboard-announcement-title {
        font-size: var(--font-size-xs);
    }
    
    .dashboard-announcement-date {
        font-size: var(--font-size-2xs);
    }
    
    .streak-card {
        padding: var(--spacing-md);
        flex-direction: column;
        text-align: center;
        width: 100%;
    }
    
    .streak-icon {
        font-size: 2rem;
    }
    
    .badge-grid {
        grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
        gap: var(--spacing-sm);
    }
    
    .badge-icon-lg {
        width: 48px;
        height: 48px;
        font-size: 1.5rem;
    }
}

/* ============================================
   Student Page Styles (Enrollments, Assignments, Certificates, Learning Path)
   ============================================ */

/* Page Container - Consistent wrapper for all app-style pages */
.page-container {
    max-width: 100%;
    padding: 0;
    width: 100%;
}

/* Page Header Pattern - Consistent header for all student pages */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.page-header-title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-gray-900);
    margin: 0;
    margin-bottom: var(--spacing-xs);
    line-height: var(--line-height-tight);
}

.page-header-subtitle {
    font-size: var(--font-size-base);
    color: var(--color-gray-600);
    margin: 0;
    line-height: var(--line-height-relaxed);
}

.page-header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

/* Ensure consistent card spacing across all layouts */
.page-container .card,
.student-content .card,
.page-container .card {
    margin-bottom: var(--spacing-lg);
}

.page-container .card:last-child {
    margin-bottom: 0;
}

/* Page Grid */
.page-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

/* Page List */
.page-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

/* Page Card */
.page-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.page-card:hover {
    box-shadow: var(--shadow-md);
}

.page-card-horizontal {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-lg);
}

.page-card-content {
    flex: 1;
    min-width: 0;
}

.page-card-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-gray-900);
    margin: 0 0 var(--spacing-sm) 0;
    line-height: 1.3;
}

.page-card-description {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    margin: 0 0 var(--spacing-md) 0;
    line-height: 1.5;
}

.page-card-meta {
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
    margin-bottom: var(--spacing-md);
}

.page-card-meta-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    margin-bottom: var(--spacing-sm);
}

.page-card-meta-list span {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.page-card-progress {
    margin-bottom: var(--spacing-md);
}

.page-card-progress-header {
    display: flex;
    justify-content: space-between;
    font-size: var(--font-size-xs);
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-xs);
}

.page-card-grade {
    margin-top: var(--spacing-sm);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
}

/* Certificate Card */
.page-card-certificate {
    text-align: center;
}

.page-card-certificate-icon {
    width: 64px;
    height: 64px;
    background: var(--color-warning-bg);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
    font-size: var(--font-size-3xl);
    color: var(--color-warning);
}

/* Empty State */
.page-empty-state {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-3xl);
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.page-empty-icon {
    width: 96px;
    height: 96px;
    background: var(--color-gray-50);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-xl);
    font-size: var(--font-size-4xl);
    color: var(--color-gray-300);
}

.page-empty-title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-gray-900);
    margin: 0 0 var(--spacing-sm) 0;
}

.page-empty-description {
    color: var(--color-gray-500);
    max-width: 400px;
    margin: 0 auto var(--spacing-xl);
    font-size: var(--font-size-base);
    line-height: 1.5;
}

/* Learning Path Styles */
.page-card-learning-path {
    margin-bottom: var(--spacing-xl);
}

.learning-path-header {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 2px solid var(--color-gray-200);
}

.learning-path-thumbnail {
    width: 120px;
    height: 120px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    flex-shrink: 0;
}

.learning-path-thumbnail-placeholder {
    background: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
}

.learning-path-content {
    flex: 1;
    min-width: 0;
}

.learning-path-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-900);
    margin: 0 0 var(--spacing-sm) 0;
}

.learning-path-title a {
    color: var(--color-gray-900);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.learning-path-title a:hover {
    color: var(--color-primary);
}

.learning-path-description {
    color: var(--color-gray-600);
    margin: 0 0 var(--spacing-md) 0;
    line-height: 1.5;
}

.learning-path-progress {
    margin-bottom: var(--spacing-sm);
}

.learning-path-progress-header {
    display: flex;
    justify-content: space-between;
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-xs);
}

.learning-path-progress-header span:last-child {
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-900);
}

.learning-path-stats {
    display: flex;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

.learning-path-section {
    margin-bottom: var(--spacing-xl);
}

.learning-path-section:last-child {
    margin-bottom: 0;
}

.learning-path-section-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-900);
    margin: 0 0 var(--spacing-md) 0;
}

.learning-path-items {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.learning-path-item {
    display: flex;
    align-items: center;
    padding: var(--spacing-md);
    background: var(--color-gray-50);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--color-primary);
    gap: var(--spacing-md);
}

.learning-path-item-completed {
    background: var(--color-success-bg);
    border-left-color: var(--color-success);
}

.learning-path-item-number {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-700);
    min-width: 24px;
    text-align: center;
}

.learning-path-item-content {
    flex: 1;
    min-width: 0;
}

.learning-path-item-title {
    color: var(--color-gray-900);
    text-decoration: none;
    font-weight: var(--font-weight-semibold);
    display: block;
    margin-bottom: var(--spacing-xs);
    transition: color var(--transition-fast);
}

.learning-path-item-title:hover {
    color: var(--color-primary);
}

.learning-path-item-meta {
    color: var(--color-gray-600);
    font-size: var(--font-size-xs);
}

.learning-path-item-status {
    color: var(--color-success);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
}

.learning-path-quizzes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.learning-path-quiz {
    padding: var(--spacing-md);
    background: var(--color-gray-50);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--color-primary);
}

.learning-path-quiz-passed {
    background: var(--color-success-bg);
    border-left-color: var(--color-success);
}

.learning-path-quiz-title {
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-sm);
}

.learning-path-quiz-score {
    color: var(--color-gray-600);
    font-size: var(--font-size-xs);
    margin-bottom: var(--spacing-xs);
}

.learning-path-quiz-status {
    color: var(--color-success);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
}

/* Dark Mode Support */
[data-theme="dark"] .page-card {
    background: var(--bg-secondary);
}

[data-theme="dark"] .page-card-title {
    color: var(--text-primary);
}

[data-theme="dark"] .page-card-description {
    color: var(--text-secondary);
}

[data-theme="dark"] .page-card-meta,
[data-theme="dark"] .page-card-meta-list {
    color: var(--text-secondary);
}

[data-theme="dark"] .page-empty-state {
    background: var(--bg-secondary);
}

[data-theme="dark"] .page-empty-title {
    color: var(--text-primary);
}

[data-theme="dark"] .page-empty-description {
    color: var(--text-secondary);
}

[data-theme="dark"] .page-empty-icon {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

[data-theme="dark"] .learning-path-header {
    border-bottom-color: var(--border-color);
}

[data-theme="dark"] .learning-path-title,
[data-theme="dark"] .learning-path-title a {
    color: var(--text-primary);
}

[data-theme="dark"] .learning-path-description {
    color: var(--text-secondary);
}

[data-theme="dark"] .learning-path-section-title {
    color: var(--text-primary);
}

[data-theme="dark"] .learning-path-item {
    background: var(--bg-tertiary);
    border-left-color: var(--color-primary-light);
}

[data-theme="dark"] .learning-path-item-completed {
    background: rgba(16, 185, 129, 0.1);
}

[data-theme="dark"] .learning-path-item-title {
    color: var(--text-primary);
}

[data-theme="dark"] .learning-path-item-meta {
    color: var(--text-secondary);
}

[data-theme="dark"] .learning-path-quiz {
    background: var(--bg-tertiary);
    border-left-color: var(--color-primary-light);
}

[data-theme="dark"] .learning-path-quiz-passed {
    background: rgba(16, 185, 129, 0.1);
}

[data-theme="dark"] .learning-path-quiz-title {
    color: var(--text-primary);
}

[data-theme="dark"] .learning-path-quiz-score {
    color: var(--text-secondary);
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .page-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .page-card-horizontal {
        flex-direction: column;
        align-items: flex-start;
    }

    .learning-path-header {
        flex-direction: column;
    }

    .learning-path-thumbnail {
        width: 100%;
        height: 200px;
    }

    .learning-path-quizzes-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .page-grid {
        grid-template-columns: 1fr;
    }

    .learning-path-stats {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
}

[data-theme="dark"] .student-content {
    background-color: var(--bg-primary);
}

[data-theme="dark"] .nav-item {
    color: var(--text-secondary);
}

[data-theme="dark"] .nav-item:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

[data-theme="dark"] .nav-item-active {
    background-color: rgba(99, 102, 241, 0.2);
    color: var(--color-primary-light);
}

[data-theme="dark"] .nav-item-active:hover {
    background-color: rgba(99, 102, 241, 0.25);
    color: var(--color-primary-light);
}