/* ===================================
   Course Preview Page - Premium Shadcn UI/UX
   =================================== */

/* Base Variables */
:root {
    --preview-primary: #3b82f6;
    --preview-primary-dark: #2563eb;
    --preview-success: #10b981;
    --preview-success-dark: #059669;
    --preview-warning: #f59e0b;
    --preview-danger: #ef4444;
    --preview-gray-50: #f9fafb;
    --preview-gray-100: #f3f4f6;
    --preview-gray-200: #e5e7eb;
    --preview-gray-300: #d1d5db;
    --preview-gray-400: #9ca3af;
    --preview-gray-500: #6b7280;
    --preview-gray-600: #4b5563;
    --preview-gray-700: #374151;
    --preview-gray-800: #1f2937;
    --preview-gray-900: #111827;
}

/* Page Container */
.course-preview-page {
    padding-bottom: 3rem;
}

.course-preview-page .gy-24 > * {
    padding-top: 1.5rem;
}

.course-preview-page .mt-32 {
    margin-top: 2rem;
}

/* ===================================
   Enrollment Header Card
   =================================== */
.enrollment-header-card {
    background: #ffffff;
    border: 1px solid var(--preview-gray-200);
    border-radius: 1rem;
    padding: 1.5rem 2rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.enrollment-header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.header-badges {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.preview-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 600;
    transition: all 0.2s ease;
}

.preview-badge i {
    font-size: 1rem;
}

.preview-badge.level-beginner {
    background: linear-gradient(135deg, #dcfce7 0%, #bbf7d0 100%);
    color: #059669;
    border: 1px solid #86efac;
}

.preview-badge.level-intermediate {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    color: #d97706;
    border: 1px solid #fcd34d;
}

.preview-badge.level-advanced {
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
    color: #dc2626;
    border: 1px solid #fca5a5;
}

.preview-badge.category-badge {
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    color: var(--preview-primary-dark);
    border: 1px solid #93c5fd;
}

.preview-badge.teacher-badge {
    background: linear-gradient(135deg, var(--preview-gray-100) 0%, var(--preview-gray-200) 100%);
    color: var(--preview-gray-700);
    border: 1px solid var(--preview-gray-300);
}

.header-action {
    display: flex;
    align-items: center;
}

.btn-preview-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, var(--preview-primary) 0%, var(--preview-primary-dark) 100%);
    color: #ffffff;
    border: none;
    border-radius: 0.625rem;
    font-size: 0.9375rem;
    font-weight: 600;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.25);
}

.btn-preview-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.35);
    color: #ffffff;
    text-decoration: none;
}

.btn-preview-primary.success {
    background: linear-gradient(135deg, var(--preview-success) 0%, var(--preview-success-dark) 100%);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.25);
}

.btn-preview-primary.success:hover {
    box-shadow: 0 8px 20px rgba(16, 185, 129, 0.35);
}

.btn-preview-primary i {
    font-size: 1.125rem;
}

.enrollment-pricing {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.pricing-info {
    text-align: right;
}

.price-amount {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--preview-success);
    line-height: 1.2;
}

.price-amount .currency {
    font-size: 1rem;
    font-weight: 600;
    margin-left: 0.25rem;
}

.price-label {
    font-size: 0.8125rem;
    color: var(--preview-gray-500);
    margin-top: 0.25rem;
}

/* ===================================
   Stats Grid
   =================================== */
.preview-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 1rem;
}

.preview-stat-item {
    display: flex;
    align-items: center;
    gap: 0.875rem;
    padding: 1.125rem 1.25rem;
    background: #ffffff;
    border: 1px solid var(--preview-gray-200);
    border-radius: 0.75rem;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.preview-stat-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
    border-color: var(--preview-gray-300);
}

.stat-icon-preview {
    width: 3rem;
    height: 3rem;
    border-radius: 0.625rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.stat-icon-preview.videos {
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    color: var(--preview-primary);
}

.stat-icon-preview.duration {
    background: linear-gradient(135deg, #e0e7ff 0%, #c7d2fe 100%);
    color: #6366f1;
}

.stat-icon-preview.students {
    background: linear-gradient(135deg, #dcfce7 0%, #bbf7d0 100%);
    color: var(--preview-success);
}

.stat-icon-preview.rating {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    color: var(--preview-warning);
}

.stat-icon-preview.views {
    background: linear-gradient(135deg, #f3e8ff 0%, #e9d5ff 100%);
    color: #a855f7;
}

.stat-content-preview {
    flex: 1;
}

.stat-value-preview {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--preview-gray-900);
    line-height: 1.2;
}

.stat-label-preview {
    font-size: 0.8125rem;
    color: var(--preview-gray-500);
    margin-top: 0.25rem;
}

/* ===================================
   Video Player Section
   =================================== */
.preview-video-section {
    background: #ffffff;
    border: 1px solid var(--preview-gray-200);
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

.video-player-modern {
    display: flex;
    flex-direction: column;
}

.player-container {
    position: relative;
    width: 100%;
    padding-top: 42%; /* Reduced height - between 21:9 and 16:9 */
    background: var(--preview-gray-900);
    overflow: hidden;
}

.player-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1f2937 0%, #111827 100%);
}

.placeholder-content {
    text-align: center;
    padding: 2rem;
}

.placeholder-icon {
    width: 4rem;
    height: 4rem;
    margin: 0 auto 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(59, 130, 246, 0.2);
    border-radius: 50%;
    color: var(--preview-primary);
}

.placeholder-icon i {
    font-size: 2rem;
}

.placeholder-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 0.5rem;
}

.placeholder-description {
    font-size: 0.875rem;
    color: var(--preview-gray-400);
    margin-bottom: 0;
}

.player-iframe,
.player-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.video-info-modern {
    padding: 1.5rem 2rem;
    background: var(--preview-gray-50);
    border-top: 1px solid var(--preview-gray-200);
}

.video-info-content {
}

.video-info-modern .video-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--preview-gray-900);
    margin-bottom: 0.5rem;
}

.video-info-modern .video-description {
    font-size: 0.875rem;
    color: var(--preview-gray-600);
    margin-bottom: 0;
    line-height: 1.6;
}

/* ===================================
   Content Section & Tabs
   =================================== */
.preview-content-section {
    background: #ffffff;
    border: 1px solid var(--preview-gray-200);
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

.preview-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem 2rem;
    background: linear-gradient(135deg, var(--preview-gray-50) 0%, #ffffff 100%);
    border-bottom: 1px solid var(--preview-gray-200);
}

.section-title-wrapper {
    flex: 1;
}

.section-title-preview {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--preview-gray-900);
    margin-bottom: 0.25rem;
    display: flex;
    align-items: center;
    gap: 0.625rem;
}

.section-title-preview i {
    font-size: 1.5rem;
    color: var(--preview-primary);
}

.section-subtitle-preview {
    font-size: 0.875rem;
    color: var(--preview-gray-500);
    margin-bottom: 0;
}

.section-badge-count {
    min-width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--preview-primary) 0%, var(--preview-primary-dark) 100%);
    color: #ffffff;
    border-radius: 0.625rem;
    font-size: 1.125rem;
    font-weight: 700;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.25);
}

/* Modern Tabs */
.preview-tabs-wrapper {
    padding: 0 2rem;
    background: #ffffff;
    border-bottom: 1px solid var(--preview-gray-200);
}

.preview-tabs {
    display: flex;
    gap: 0.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.preview-tab-item {
    flex-shrink: 0;
}

.preview-tab-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    color: var(--preview-gray-600);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    white-space: nowrap;
}

.preview-tab-link:hover {
    background: var(--preview-gray-50);
    color: var(--preview-gray-900);
}

.preview-tab-link.active {
    color: var(--preview-primary);
    border-bottom-color: var(--preview-primary);
}

.tab-icon-preview {
    width: 2.25rem;
    height: 2.25rem;
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    transition: all 0.25s ease;
}

.preview-tab-link .tab-icon-preview.videos {
    background: var(--preview-gray-100);
    color: var(--preview-gray-600);
}

.preview-tab-link.active .tab-icon-preview.videos {
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    color: var(--preview-primary);
}

.preview-tab-link .tab-icon-preview.about {
    background: var(--preview-gray-100);
    color: var(--preview-gray-600);
}

.preview-tab-link.active .tab-icon-preview.about {
    background: linear-gradient(135deg, #dcfce7 0%, #bbf7d0 100%);
    color: var(--preview-success);
}

.preview-tab-link .tab-icon-preview.instructor {
    background: var(--preview-gray-100);
    color: var(--preview-gray-600);
}

.preview-tab-link.active .tab-icon-preview.instructor {
    background: linear-gradient(135deg, #f3e8ff 0%, #e9d5ff 100%);
    color: #a855f7;
}

.preview-tab-link .tab-icon-preview.reviews {
    background: var(--preview-gray-100);
    color: var(--preview-gray-600);
}

.preview-tab-link.active .tab-icon-preview.reviews {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    color: var(--preview-warning);
}

.tab-text-wrapper {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.tab-label-preview {
    font-size: 0.9375rem;
    line-height: 1.2;
}

.tab-count-preview {
    font-size: 0.75rem;
    color: var(--preview-gray-500);
    font-weight: 400;
}

.preview-tab-link.active .tab-count-preview {
    color: var(--preview-primary);
}

/* Tab Content */
.preview-tab-content {
    padding: 2rem;
}

/* ===================================
   Videos Tab
   =================================== */
.preview-videos-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.preview-video-group {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.video-group-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.group-header-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.group-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--preview-gray-900);
    margin-bottom: 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.group-title i {
    font-size: 1.25rem;
    color: var(--preview-primary);
}

.group-count {
    padding: 0.25rem 0.75rem;
    background: var(--preview-gray-100);
    color: var(--preview-gray-600);
    border-radius: 9999px;
    font-size: 0.8125rem;
    font-weight: 600;
}

/* Videos Grid */
.preview-videos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.25rem;
}

.preview-video-card {
    background: #ffffff;
    border: 1px solid var(--preview-gray-200);
    border-radius: 0.75rem;
    overflow: hidden;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
}

.preview-video-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
    border-color: var(--preview-primary);
}

.preview-video-card.clickable {
    cursor: pointer;
}

.preview-video-card.active {
    border-color: var(--preview-primary);
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.2);
}

.preview-video-card.locked {
    opacity: 0.7;
}

.preview-video-card.locked:hover {
    transform: none;
    box-shadow: none;
    border-color: var(--preview-gray-200);
}

.preview-video-thumbnail {
    position: relative;
    width: 100%;
    padding-top: 56.25%; /* 16:9 */
    background: var(--preview-gray-900);
    overflow: hidden;
}

.preview-video-thumbnail .thumbnail-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.thumbnail-fallback {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1f2937 0%, #111827 100%);
    color: var(--preview-gray-400);
    font-size: 3rem;
}

.thumbnail-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.25s ease;
}

.preview-video-card:hover .thumbnail-overlay {
    opacity: 1;
}

.preview-video-card.locked .thumbnail-overlay.locked {
    opacity: 1;
    background: rgba(0, 0, 0, 0.6);
}

.play-icon-overlay,
.lock-icon-overlay {
    width: 3.5rem;
    height: 3.5rem;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: var(--preview-primary);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
    transform: scale(0.9);
    transition: transform 0.25s ease;
}

.preview-video-card:hover .play-icon-overlay {
    transform: scale(1);
}

.lock-icon-overlay {
    color: var(--preview-gray-500);
}

.preview-video-body {
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    flex: 1;
}

.video-meta-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
}

.video-number-badge {
    padding: 0.25rem 0.625rem;
    background: var(--preview-gray-100);
    color: var(--preview-gray-700);
    border-radius: 0.375rem;
    font-size: 0.75rem;
    font-weight: 600;
}

.video-duration-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.625rem;
    background: var(--preview-gray-100);
    color: var(--preview-gray-600);
    border-radius: 0.375rem;
    font-size: 0.75rem;
    font-weight: 500;
}

.video-duration-badge i {
    font-size: 0.875rem;
}

.video-title-preview {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--preview-gray-900);
    margin-bottom: 0;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

.video-description-preview {
    font-size: 0.8125rem;
    color: var(--preview-gray-600);
    margin-bottom: 0;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

.video-footer-badge {
    margin-top: auto;
}

.preview-video-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.375rem 0.75rem;
    border-radius: 0.375rem;
    font-size: 0.75rem;
    font-weight: 600;
}

.preview-video-badge.free {
    background: linear-gradient(135deg, #dcfce7 0%, #bbf7d0 100%);
    color: var(--preview-success-dark);
    border: 1px solid #86efac;
}

.preview-video-badge.locked {
    background: var(--preview-gray-100);
    color: var(--preview-gray-600);
    border: 1px solid var(--preview-gray-300);
}

.preview-video-badge i {
    font-size: 0.875rem;
}

/* ===================================
   About Tab
   =================================== */
.preview-about-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.about-section-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--preview-gray-900);
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.about-section-title i {
    font-size: 1.375rem;
    color: var(--preview-primary);
}

.about-description {
    font-size: 1rem;
    color: var(--preview-gray-700);
    line-height: 1.7;
    margin-bottom: 0;
}

.about-section {
    padding-top: 1.5rem;
    border-top: 1px solid var(--preview-gray-200);
}

.about-subtitle {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--preview-gray-900);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.about-subtitle i {
    font-size: 1.25rem;
    color: var(--preview-primary);
}

.about-subtitle-small {
    font-size: 1rem;
    font-weight: 600;
    color: var(--preview-gray-900);
    margin-bottom: 1rem;
}

.learning-outcomes {
    padding: 1.5rem;
    background: linear-gradient(135deg, #dcfce7 0%, #d1fae5 100%);
    border: 1px solid #86efac;
    border-radius: 0.75rem;
    font-size: 0.9375rem;
    color: var(--preview-gray-700);
    line-height: 1.7;
}

.details-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
}

.detail-item {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.875rem 1rem;
    background: var(--preview-gray-50);
    border: 1px solid var(--preview-gray-200);
    border-radius: 0.5rem;
}

.detail-item i {
    font-size: 1.25rem;
    color: var(--preview-primary);
    flex-shrink: 0;
}

.detail-label {
    font-size: 0.8125rem;
    color: var(--preview-gray-500);
    margin-right: 0.25rem;
}

.detail-value {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--preview-gray-900);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 0.75rem;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background: #ffffff;
    border: 1px solid var(--preview-gray-200);
    border-radius: 0.5rem;
    font-size: 0.875rem;
    color: var(--preview-gray-700);
    transition: all 0.2s ease;
}

.feature-item:hover {
    border-color: var(--preview-primary);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.1);
}

.feature-item i {
    font-size: 1.25rem;
    color: var(--preview-primary);
    flex-shrink: 0;
}

/* ===================================
   Instructor Tab
   =================================== */
.preview-instructor-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.instructor-section-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--preview-gray-900);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.instructor-section-title i {
    font-size: 1.375rem;
    color: var(--preview-primary);
}

.instructor-profile {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    padding: 1.5rem;
    background: var(--preview-gray-50);
    border: 1px solid var(--preview-gray-200);
    border-radius: 0.75rem;
}

.instructor-avatar {
    flex-shrink: 0;
}

.instructor-avatar .avatar-img {
    width: 5rem;
    height: 5rem;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--preview-primary);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.2);
}

.instructor-avatar .avatar-placeholder {
    width: 5rem;
    height: 5rem;
    border-radius: 50%;
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    border: 3px solid var(--preview-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--preview-primary);
}

.instructor-info {
    flex: 1;
}

.instructor-name {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--preview-gray-900);
    margin-bottom: 0.375rem;
}

.instructor-role {
    font-size: 0.875rem;
    color: var(--preview-gray-500);
    margin-bottom: 0.625rem;
}

.instructor-expertise {
    display: inline-flex;
    padding: 0.375rem 0.875rem;
    background: linear-gradient(135deg, var(--preview-primary) 0%, var(--preview-primary-dark) 100%);
    color: #ffffff;
    border-radius: 9999px;
    font-size: 0.8125rem;
    font-weight: 600;
}

.instructor-bio {
    padding: 1.25rem;
    background: var(--preview-gray-50);
    border: 1px solid var(--preview-gray-200);
    border-radius: 0.75rem;
}

.instructor-bio p {
    font-size: 0.9375rem;
    color: var(--preview-gray-700);
    line-height: 1.7;
    margin-bottom: 0;
}

/* ===================================
   Reviews Tab
   =================================== */
.preview-reviews-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.reviews-section-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--preview-gray-900);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.reviews-section-title i {
    font-size: 1.375rem;
    color: var(--preview-warning);
}

/* ===================================
   CTA Section
   =================================== */
.preview-cta-section {
    position: relative;
}

.cta-card-modern {
    position: relative;
    background: linear-gradient(135deg, #1e40af 0%, #1e3a8a 100%);
    border-radius: 1.5rem;
    padding: 3rem;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(30, 64, 175, 0.3);
}

.cta-pattern-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    opacity: 0.1;
}

.pattern-circle-bg {
    position: absolute;
    border-radius: 50%;
    background: #ffffff;
}

.pattern-circle-bg.circle-1 {
    width: 300px;
    height: 300px;
    top: -100px;
    right: -100px;
}

.pattern-circle-bg.circle-2 {
    width: 200px;
    height: 200px;
    bottom: -50px;
    left: -50px;
}

.pattern-circle-bg.circle-3 {
    width: 150px;
    height: 150px;
    top: 50%;
    left: 30%;
}

.cta-content-wrapper {
    position: relative;
    z-index: 1;
}

.cta-text-content {
    color: #ffffff;
}

.cta-badge-modern {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 9999px;
    font-size: 0.8125rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.cta-badge-modern i {
    font-size: 1rem;
}

.cta-title-modern {
    font-size: 2.25rem;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.cta-description-modern {
    font-size: 1.0625rem;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.cta-benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1rem;
}

.cta-benefit-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.benefit-icon-wrapper {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 0.5rem;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: #ffffff;
    flex-shrink: 0;
}

.benefit-text-wrapper {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.95);
    line-height: 1.4;
}

.benefit-text-wrapper strong {
    display: block;
    font-weight: 700;
}

.cta-action-wrapper {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.cta-price-card {
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 1rem;
    text-align: center;
}

.cta-price-display {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.price-currency {
    font-size: 1.125rem;
    font-weight: 600;
    color: #ffffff;
}

.price-amount {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--preview-gray-900);
    line-height: 1;
}

.cta-price-display.free .price-amount {
    font-size: 2rem;
}

.cta-price-label {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.8);
}

.btn-cta-enroll {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.625rem;
    padding: 1rem 1.5rem;
    background: #ffffff;
    color: var(--preview-primary-dark);
    border: none;
    border-radius: 0.75rem;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.btn-cta-enroll:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.25);
    color: var(--preview-primary-dark);
    text-decoration: none;
}

.btn-cta-enroll i {
    font-size: 1.25rem;
}

.cta-guarantee-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 0.5rem;
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.9);
}

.cta-guarantee-badge i {
    font-size: 1.125rem;
}

/* ===================================
   Responsive Styles
   =================================== */
@media (max-width: 991px) {
    .preview-stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    }

    .preview-videos-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }

    .details-grid {
        grid-template-columns: 1fr;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .cta-card-modern {
        padding: 2rem;
    }

    .cta-title-modern {
        font-size: 1.75rem;
    }

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

    .cta-action-wrapper {
        margin-top: 2rem;
    }
}

@media (max-width: 767px) {
    .enrollment-header-content {
        flex-direction: column;
        align-items: stretch;
    }

    .header-badges {
        justify-content: center;
    }

    .header-action {
        width: 100%;
        justify-content: center;
    }

    .enrollment-pricing {
        flex-direction: column;
        width: 100%;
        gap: 1rem;
    }

    .pricing-info {
        text-align: center;
    }

    .btn-preview-primary {
        width: 100%;
    }

    .preview-stats-grid {
        grid-template-columns: 1fr;
    }

    .preview-section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .preview-tabs-wrapper {
        padding: 0 1rem;
    }

    .preview-tab-content {
        padding: 1.5rem 1rem;
    }

    .preview-videos-grid {
        grid-template-columns: 1fr;
    }

    .instructor-profile {
        flex-direction: column;
        text-align: center;
    }

    .cta-card-modern {
        padding: 1.5rem;
    }

    .cta-title-modern {
        font-size: 1.5rem;
    }

    .cta-description-modern {
        font-size: 0.9375rem;
    }

    .cta-benefits-grid {
        grid-template-columns: 1fr;
    }

    .pattern-circle-bg.circle-1 {
        width: 200px;
        height: 200px;
    }

    .pattern-circle-bg.circle-2 {
        width: 150px;
        height: 150px;
    }

    .pattern-circle-bg.circle-3 {
        width: 100px;
        height: 100px;
    }
}

@media (max-width: 575px) {
    .preview-badge {
        font-size: 0.75rem;
        padding: 0.375rem 0.75rem;
    }

    .stat-value-preview {
        font-size: 1.25rem;
    }

    .section-title-preview {
        font-size: 1.125rem;
    }

    .preview-tab-link {
        padding: 0.875rem 1rem;
    }

    .tab-icon-preview {
        width: 2rem;
        height: 2rem;
        font-size: 1.125rem;
    }

    .tab-label-preview {
        font-size: 0.875rem;
    }

    .group-title {
        font-size: 1rem;
    }
}

/* Animation */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.preview-video-card {
    animation: fadeInUp 0.5s ease-out backwards;
}

.preview-video-card:nth-child(1) { animation-delay: 0.05s; }
.preview-video-card:nth-child(2) { animation-delay: 0.1s; }
.preview-video-card:nth-child(3) { animation-delay: 0.15s; }
.preview-video-card:nth-child(4) { animation-delay: 0.2s; }
.preview-video-card:nth-child(5) { animation-delay: 0.25s; }
.preview-video-card:nth-child(6) { animation-delay: 0.3s; }
/* ===================================
   Course Player Page - Premium Shadcn UI/UX
   =================================== */

/* Page Container */
.course-player-page {
    padding-bottom: 3rem;
}

.course-player-page .gy-24 > * {
    padding-top: 1.5rem;
}

/* ===================================
   Player Stats Bar
   =================================== */
.player-stats-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 1.25rem 1.5rem;
    background: #ffffff;
    border: 1px solid var(--preview-gray-200);
    border-radius: 1rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.player-stat-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-shrink: 0;
}

.player-stat-icon {
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 0.625rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.375rem;
    flex-shrink: 0;
}

.player-stat-icon.videos {
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    color: var(--preview-primary);
}

.player-stat-icon.watched {
    background: linear-gradient(135deg, #dcfce7 0%, #bbf7d0 100%);
    color: var(--preview-success);
}

.player-stat-icon.quizzes {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    color: var(--preview-warning);
}

.player-stat-icon.duration {
    background: linear-gradient(135deg, #e0e7ff 0%, #c7d2fe 100%);
    color: #6366f1;
}

.player-stat-icon.price {
    background: linear-gradient(135deg, #f3e8ff 0%, #e9d5ff 100%);
    color: #a855f7;
}

.player-stat-content {
    display: flex;
    flex-direction: column;
}

.player-stat-value {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--preview-gray-900);
    line-height: 1.2;
}

.player-stat-label {
    font-size: 0.8125rem;
    color: var(--preview-gray-500);
    margin-top: 0.125rem;
}

.player-stat-divider {
    width: 1px;
    height: 2.5rem;
    background: var(--preview-gray-200);
    flex-shrink: 0;
}

/* ===================================
   Video Player Section
   =================================== */
.player-video-section {
    background: #ffffff;
    border: 1px solid var(--preview-gray-200);
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

.player-video-wrapper {
    display: flex;
    flex-direction: column;
}

.player-video-container {
    position: relative;
    width: 100%;
    padding-top: 30%; /* Lower height for compact view */
    background: var(--preview-gray-900);
    overflow: hidden;
}

.player-video-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1f2937 0%, #111827 100%);
}

.placeholder-player-content {
    text-align: center;
    padding: 2rem;
}

.placeholder-player-icon {
    width: 4.5rem;
    height: 4.5rem;
    margin: 0 auto 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(59, 130, 246, 0.2);
    border-radius: 50%;
    color: var(--preview-primary);
}

.placeholder-player-icon i {
    font-size: 2.25rem;
}

.placeholder-player-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 0.625rem;
}

.placeholder-player-text {
    font-size: 0.9375rem;
    color: var(--preview-gray-400);
    margin-bottom: 0;
}

.player-video-info {
    padding: 1.5rem 2rem;
    background: var(--preview-gray-50);
    border-top: 1px solid var(--preview-gray-200);
}

.player-video-info .video-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--preview-gray-900);
    margin-bottom: 0.5rem;
}

.player-video-info .video-description {
    font-size: 0.875rem;
    color: var(--preview-gray-600);
    margin-bottom: 0;
    line-height: 1.6;
}

/* ===================================
   Content Section & Player Tabs
   =================================== */
.player-content-section {
    background: #ffffff;
    border: 1px solid var(--preview-gray-200);
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

.player-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem 2rem;
    background: linear-gradient(135deg, var(--preview-gray-50) 0%, #ffffff 100%);
    border-bottom: 1px solid var(--preview-gray-200);
}

.player-section-title-wrapper {
    flex: 1;
}

.player-section-title {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--preview-gray-900);
    margin-bottom: 0.25rem;
    display: flex;
    align-items: center;
    gap: 0.625rem;
}

.player-section-title i {
    font-size: 1.5rem;
    color: var(--preview-primary);
}

.player-section-subtitle {
    font-size: 0.875rem;
    color: var(--preview-gray-500);
    margin-bottom: 0;
}

.player-section-badge {
    min-width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--preview-primary) 0%, var(--preview-primary-dark) 100%);
    color: #ffffff;
    border-radius: 0.625rem;
    font-size: 1.125rem;
    font-weight: 700;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.25);
}

/* Player Tabs */
.player-tabs-wrapper {
    padding: 0 2rem;
    background: #ffffff;
    border-bottom: 1px solid var(--preview-gray-200);
}

.player-tabs {
    display: flex;
    gap: 0.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.player-tab-item {
    flex-shrink: 0;
}

.player-tab-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    color: var(--preview-gray-600);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    white-space: nowrap;
}

.player-tab-link:hover {
    background: var(--preview-gray-50);
    color: var(--preview-gray-900);
}

.player-tab-link.active {
    color: var(--preview-primary);
    border-bottom-color: var(--preview-primary);
}

.player-tab-icon {
    width: 2.25rem;
    height: 2.25rem;
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    transition: all 0.25s ease;
}

.player-tab-link .player-tab-icon {
    background: var(--preview-gray-100);
    color: var(--preview-gray-600);
}

.player-tab-link.active .player-tab-icon.videos {
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    color: var(--preview-primary);
}

.player-tab-link.active .player-tab-icon.quizzes {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    color: var(--preview-warning);
}

.player-tab-link.active .player-tab-icon.attachments {
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
    color: var(--preview-danger);
}

.player-tab-link.active .player-tab-icon.about {
    background: linear-gradient(135deg, #dcfce7 0%, #bbf7d0 100%);
    color: var(--preview-success);
}

.player-tab-link.active .player-tab-icon.reviews {
    background: linear-gradient(135deg, #f3e8ff 0%, #e9d5ff 100%);
    color: #a855f7;
}

.player-tab-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.player-tab-label {
    font-size: 0.9375rem;
    line-height: 1.2;
}

.player-tab-count {
    font-size: 0.75rem;
    color: var(--preview-gray-500);
    font-weight: 400;
}

.player-tab-link.active .player-tab-count {
    color: var(--preview-primary);
}

/* Tab Content */
.player-tab-content {
    padding: 2rem;
}

/* ===================================
   Player Videos Content
   =================================== */
.player-videos-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.player-video-group {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.player-video-group-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.group-header-content {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.group-header-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--preview-gray-900);
    margin-bottom: 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.group-header-title i {
    font-size: 1.25rem;
    color: var(--preview-primary);
}

.group-header-count {
    padding: 0.25rem 0.75rem;
    background: var(--preview-gray-100);
    color: var(--preview-gray-600);
    border-radius: 9999px;
    font-size: 0.8125rem;
    font-weight: 600;
}

/* Player Videos Grid */
.player-videos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1.25rem;
}

.player-video-card {
    background: #ffffff;
    border: 1px solid var(--preview-gray-200);
    border-radius: 0.75rem;
    overflow: hidden;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    cursor: pointer;
}

.player-video-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
    border-color: var(--preview-primary);
}

.player-video-card.active {
    border-color: var(--preview-primary);
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.2);
}

.player-video-thumbnail {
    position: relative;
    width: 100%;
    padding-top: 56.25%; /* 16:9 */
    background: var(--preview-gray-900);
    overflow: hidden;
}

.player-thumbnail-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.player-thumbnail-fallback {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1f2937 0%, #111827 100%);
    color: var(--preview-gray-400);
    font-size: 3rem;
}

.player-thumbnail-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.25s ease;
}

.player-video-card:hover .player-thumbnail-overlay {
    opacity: 1;
}

.player-play-icon {
    width: 3.5rem;
    height: 3.5rem;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: var(--preview-primary);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
    transform: scale(0.9);
    transition: transform 0.25s ease;
}

.player-video-card:hover .player-play-icon {
    transform: scale(1);
}

.player-video-status-badge {
    position: absolute;
    top: 0.75rem;
    left: 0.75rem;
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    background: rgba(16, 185, 129, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 1.125rem;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4);
}

.player-ai-btn {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    width: 2rem;
    height: 2rem;
    border-radius: 0.5rem;
    background: rgba(139, 92, 246, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 1rem;
    transition: all 0.25s ease;
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.4);
    text-decoration: none;
}

.player-ai-btn:hover {
    transform: scale(1.1);
    background: rgba(139, 92, 246, 1);
    color: #ffffff;
}

.player-video-body {
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    flex: 1;
}

.player-video-meta-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
}

.player-video-number {
    padding: 0.25rem 0.625rem;
    background: var(--preview-gray-100);
    color: var(--preview-gray-700);
    border-radius: 0.375rem;
    font-size: 0.75rem;
    font-weight: 600;
}

.player-video-duration {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.625rem;
    background: var(--preview-gray-100);
    color: var(--preview-gray-600);
    border-radius: 0.375rem;
    font-size: 0.75rem;
    font-weight: 500;
}

.player-video-duration i {
    font-size: 0.875rem;
}

.player-video-title {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--preview-gray-900);
    margin-bottom: 0;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

.player-video-description {
    font-size: 0.8125rem;
    color: var(--preview-gray-600);
    margin-bottom: 0;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

.player-video-badges {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-top: auto;
}

.player-video-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.375rem 0.75rem;
    border-radius: 0.375rem;
    font-size: 0.75rem;
    font-weight: 600;
}

.player-video-badge.free {
    background: linear-gradient(135deg, #dcfce7 0%, #bbf7d0 100%);
    color: var(--preview-success-dark);
    border: 1px solid #86efac;
}

.player-video-badge.watched {
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    color: var(--preview-primary-dark);
    border: 1px solid #93c5fd;
}

.player-video-badge.unwatched {
    background: var(--preview-gray-100);
    color: var(--preview-gray-600);
    border: 1px solid var(--preview-gray-300);
}

.player-video-badge i {
    font-size: 0.875rem;
}

/* ===================================
   Quiz Section
   =================================== */
.player-quiz-section {
    background: #ffffff;
    border: 1px solid var(--preview-gray-200);
    border-radius: 0.75rem;
    overflow: hidden;
}

.player-quiz-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    border-bottom: 1px solid var(--preview-warning);
}

.quiz-header-icon {
    width: 3rem;
    height: 3rem;
    border-radius: 0.75rem;
    background: var(--preview-warning);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 1.5rem;
}

.quiz-header-text h6 {
    font-size: 1rem;
    font-weight: 700;
    color: #92400e;
    margin-bottom: 0.25rem;
}

.quiz-header-text small {
    font-size: 0.8125rem;
    color: #b45309;
}

.player-quiz-list {
    display: flex;
    flex-direction: column;
}

.player-quiz-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--preview-gray-200);
}

.player-quiz-item:last-child {
    border-bottom: none;
}

.player-quiz-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex: 1;
}

.player-quiz-icon {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 0.625rem;
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--preview-warning);
    font-size: 1.25rem;
    flex-shrink: 0;
}

.player-quiz-details {
    flex: 1;
}

.player-quiz-details h6 {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--preview-gray-900);
    margin-bottom: 0.375rem;
}

.player-quiz-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    font-size: 0.8125rem;
    color: var(--preview-gray-500);
}

.player-quiz-meta span {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
}

.player-quiz-meta i {
    font-size: 0.9375rem;
}

.player-quiz-action {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-shrink: 0;
}

.player-quiz-score {
    padding: 0.5rem 1rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 700;
}

.player-quiz-score.passed {
    background: linear-gradient(135deg, #dcfce7 0%, #bbf7d0 100%);
    color: var(--preview-success-dark);
}

.player-quiz-score.failed {
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
    color: var(--preview-danger);
}

.player-quiz-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    background: linear-gradient(135deg, var(--preview-warning) 0%, #ea580c 100%);
    color: #ffffff;
    border: none;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 600;
    transition: all 0.25s ease;
    cursor: pointer;
    text-decoration: none;
}

.player-quiz-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(245, 158, 11, 0.3);
    color: #ffffff;
}

.player-quiz-btn i {
    font-size: 1rem;
}

.player-quiz-limit {
    font-size: 0.8125rem;
    color: var(--preview-gray-500);
}

/* ===================================
   Meeting Section
   =================================== */
.player-meeting-section {
    background: #ffffff;
    border: 1px solid var(--preview-gray-200);
    border-radius: 0.75rem;
    overflow: hidden;
    margin-top: 1.5rem;
}

.player-meeting-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    border-bottom: 1px solid var(--preview-primary);
}

.meeting-header-icon {
    width: 3rem;
    height: 3rem;
    border-radius: 0.75rem;
    background: var(--preview-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 1.5rem;
}

.meeting-header-text h6 {
    font-size: 1rem;
    font-weight: 700;
    color: #1e40af;
    margin-bottom: 0.25rem;
}

.meeting-header-text small {
    font-size: 0.8125rem;
    color: #2563eb;
}

.player-meeting-list {
    display: flex;
    flex-direction: column;
}

.player-meeting-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--preview-gray-200);
}

.player-meeting-item:last-child {
    border-bottom: none;
}

.player-meeting-item.live {
    background: linear-gradient(135deg, #dcfce7 0%, #d1fae5 100%);
}

.player-meeting-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex: 1;
}

.player-meeting-icon {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 0.625rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.player-meeting-icon.live {
    background: var(--preview-success);
    color: #ffffff;
}

.player-meeting-icon.upcoming {
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    color: var(--preview-primary);
}

.player-meeting-icon.past {
    background: var(--preview-gray-100);
    color: var(--preview-gray-600);
}

.player-meeting-details {
    flex: 1;
}

.player-meeting-details h6 {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--preview-gray-900);
    margin-bottom: 0.375rem;
}

.player-meeting-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    font-size: 0.8125rem;
    color: var(--preview-gray-500);
}

.player-meeting-meta span {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
}

.player-meeting-meta i {
    font-size: 0.9375rem;
}

.player-meeting-status {
    padding: 0.25rem 0.625rem;
    border-radius: 9999px;
    font-weight: 600;
}

.player-meeting-status.live {
    background: var(--preview-success);
    color: #ffffff;
}

.player-meeting-status.live i {
    animation: pulse-live 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.player-meeting-status.upcoming {
    background: var(--preview-primary);
    color: #ffffff;
}

.player-meeting-status.past {
    background: var(--preview-gray-600);
    color: #ffffff;
}

.player-meeting-action {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.5rem;
    flex-shrink: 0;
}

.player-meeting-countdown {
    font-size: 0.75rem;
    color: var(--preview-gray-500);
}

.player-meeting-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    border: none;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 600;
    transition: all 0.25s ease;
    cursor: pointer;
    text-decoration: none;
}

.player-meeting-btn.live {
    background: linear-gradient(135deg, var(--preview-success) 0%, var(--preview-success-dark) 100%);
    color: #ffffff;
}

.player-meeting-btn.live:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(16, 185, 129, 0.3);
    color: #ffffff;
}

.player-meeting-btn.upcoming {
    background: transparent;
    border: 1px solid var(--preview-primary);
    color: var(--preview-primary);
}

.player-meeting-btn.upcoming:hover {
    background: var(--preview-primary);
    color: #ffffff;
}

.player-meeting-btn.past {
    background: transparent;
    border: 1px solid var(--preview-gray-300);
    color: var(--preview-gray-600);
}

.player-meeting-btn.past:hover {
    background: var(--preview-gray-100);
    color: var(--preview-gray-700);
}

.player-meeting-btn i {
    font-size: 1rem;
}

.player-meeting-view-all {
    padding: 1.25rem;
    text-align: center;
    border-top: 1px solid var(--preview-gray-200);
}

.player-meeting-view-all-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    background: transparent;
    border: 1px solid var(--preview-gray-300);
    color: var(--preview-gray-600);
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 600;
    transition: all 0.25s ease;
    text-decoration: none;
}

.player-meeting-view-all-btn:hover {
    background: var(--preview-gray-100);
    border-color: var(--preview-gray-400);
    color: var(--preview-gray-700);
}

.player-meeting-view-all-btn i {
    font-size: 1rem;
}

/* ===================================
   Attachment Section
   =================================== */
.player-attachment-section {
    background: #ffffff;
    border: 1px solid var(--preview-gray-200);
    border-radius: 0.75rem;
    overflow: hidden;
}

.player-attachment-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
    border-bottom: 1px solid var(--preview-danger);
}

.attachment-header-icon {
    width: 3rem;
    height: 3rem;
    border-radius: 0.75rem;
    background: var(--preview-danger);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 1.5rem;
}

.attachment-header-text h6 {
    font-size: 1rem;
    font-weight: 700;
    color: #991b1b;
    margin-bottom: 0.25rem;
}

.attachment-header-text small {
    font-size: 0.8125rem;
    color: #dc2626;
}

.player-attachment-list {
    display: flex;
    flex-direction: column;
}

.player-attachment-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--preview-gray-200);
}

.player-attachment-item:last-child {
    border-bottom: none;
}

.player-attachment-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex: 1;
}

.player-attachment-icon {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 0.625rem;
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--preview-danger);
    font-size: 1.25rem;
    flex-shrink: 0;
}

.player-attachment-details {
    flex: 1;
}

.player-attachment-details h6 {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--preview-gray-900);
    margin-bottom: 0.375rem;
}

.player-attachment-meta {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    flex-wrap: wrap;
    font-size: 0.8125rem;
    color: var(--preview-gray-500);
}

.player-attachment-divider {
    margin: 0 0.25rem;
}

.player-attachment-meta i {
    font-size: 0.9375rem;
}

.player-attachment-action {
    flex-shrink: 0;
}

.player-attachment-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    background: linear-gradient(135deg, var(--preview-danger) 0%, #dc2626 100%);
    color: #ffffff;
    border: none;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 600;
    transition: all 0.25s ease;
    cursor: pointer;
    text-decoration: none;
}

.player-attachment-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(239, 68, 68, 0.3);
    color: #ffffff;
}

.player-attachment-btn i {
    font-size: 1rem;
}

/* ===================================
   About Section
   =================================== */
.player-about-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.player-about-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--preview-gray-900);
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.player-about-title i {
    font-size: 1.375rem;
    color: var(--preview-primary);
}

.player-about-description {
    font-size: 1rem;
    color: var(--preview-gray-700);
    line-height: 1.7;
    margin-bottom: 0;
}

.player-about-section {
    padding-top: 1.5rem;
    border-top: 1px solid var(--preview-gray-200);
}

.player-about-subtitle {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--preview-gray-900);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.player-about-subtitle i {
    font-size: 1.25rem;
    color: var(--preview-primary);
}

.player-about-learning {
    padding: 1.5rem;
    background: linear-gradient(135deg, #dcfce7 0%, #d1fae5 100%);
    border: 1px solid #86efac;
    border-radius: 0.75rem;
    font-size: 0.9375rem;
    color: var(--preview-gray-700);
    line-height: 1.7;
}

.player-about-details {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
}

.player-about-detail-item {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.875rem 1rem;
    background: var(--preview-gray-50);
    border: 1px solid var(--preview-gray-200);
    border-radius: 0.5rem;
}

.player-about-detail-item i {
    font-size: 1.25rem;
    color: var(--preview-primary);
    flex-shrink: 0;
}

.player-about-detail-item .detail-label {
    font-size: 0.8125rem;
    color: var(--preview-gray-500);
    margin-right: 0.25rem;
}

.player-about-detail-item .detail-value {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--preview-gray-900);
}

/* ===================================
   Empty State
   =================================== */
.player-empty-state {
    padding: 3rem 2rem;
    text-align: center;
    background: var(--preview-gray-50);
    border: 2px dashed var(--preview-gray-300);
    border-radius: 0.75rem;
}

.player-empty-state i {
    font-size: 4rem;
    color: var(--preview-gray-300);
    margin-bottom: 1rem;
}

.player-empty-state p {
    font-size: 1rem;
    color: var(--preview-gray-500);
    margin-bottom: 0.5rem;
}

.player-empty-state small {
    font-size: 0.875rem;
    color: var(--preview-gray-400);
}

/* ===================================
   Responsive Styles
   =================================== */
@media (max-width: 991px) {
    .player-stats-bar {
        padding: 1rem;
    }

    .player-stat-icon {
        width: 2.5rem;
        height: 2.5rem;
        font-size: 1.25rem;
    }

    .player-stat-value {
        font-size: 1.25rem;
    }

    .player-videos-grid {
        grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    }

    .player-about-details {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 767px) {
    .player-stats-bar {
        flex-wrap: nowrap;
        overflow-x: auto;
        padding: 0.875rem;
    }

    .player-stat-item {
        min-width: 140px;
    }

    .player-section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .player-tabs-wrapper {
        padding: 0 1rem;
    }

    .player-tab-content {
        padding: 1.5rem 1rem;
    }

    .player-videos-grid {
        grid-template-columns: 1fr;
    }

    .player-quiz-item,
    .player-meeting-item,
    .player-attachment-item {
        flex-direction: column;
        align-items: flex-start;
    }

    .player-quiz-action,
    .player-meeting-action,
    .player-attachment-action {
        width: 100%;
    }

    .player-quiz-btn,
    .player-meeting-btn,
    .player-attachment-btn {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 575px) {
    .player-stat-value {
        font-size: 1.125rem;
    }

    .player-section-title {
        font-size: 1.125rem;
    }

    .player-tab-link {
        padding: 0.875rem 1rem;
    }

    .player-tab-icon {
        width: 2rem;
        height: 2rem;
        font-size: 1.125rem;
    }

    .player-tab-label {
        font-size: 0.875rem;
    }

    .group-header-title {
        font-size: 1rem;
    }
}

/* Animation */
.player-video-card {
    animation: fadeInUp 0.5s ease-out backwards;
}

.player-video-card:nth-child(1) { animation-delay: 0.05s; }
.player-video-card:nth-child(2) { animation-delay: 0.1s; }
.player-video-card:nth-child(3) { animation-delay: 0.15s; }
.player-video-card:nth-child(4) { animation-delay: 0.2s; }
.player-video-card:nth-child(5) { animation-delay: 0.25s; }
.player-video-card:nth-child(6) { animation-delay: 0.3s; }

/* ===================================
   Markdown Styling for Descriptions
   =================================== */

/* Video and Course Descriptions with Markdown Support */
.video-description h1, .video-description h2, .video-description h3,
.video-description h4, .video-description h5, .video-description h6,
.about-description h1, .about-description h2, .about-description h3,
.about-description h4, .about-description h5, .about-description h6 {
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    font-weight: 600;
    line-height: 1.3;
    color: #111827;
}

.video-description h1, .about-description h1 { font-size: 1.875rem; }
.video-description h2, .about-description h2 { font-size: 1.5rem; }
.video-description h3, .about-description h3 { font-size: 1.25rem; }

.video-description p, .about-description p {
    margin-bottom: 1rem;
}

.video-description ul, .video-description ol,
.about-description ul, .about-description ol {
    margin: 1rem 0;
    padding-left: 1.5rem;
}

.video-description li, .about-description li {
    margin-bottom: 0.5rem;
}

.video-description code, .about-description code {
    background: #f3f4f6;
    padding: 0.2rem 0.4rem;
    border-radius: 0.25rem;
    font-size: 0.875em;
    font-family: 'Courier New', monospace;
}

.video-description pre, .about-description pre {
    background: #1f2937;
    color: #f9fafb;
    padding: 1rem;
    border-radius: 0.5rem;
    overflow-x: auto;
    margin: 1rem 0;
}

.video-description pre code, .about-description pre code {
    background: transparent;
    padding: 0;
    color: inherit;
}

.video-description blockquote, .about-description blockquote {
    border-left: 4px solid #3b82f6;
    padding-left: 1rem;
    margin: 1rem 0;
    color: #6b7280;
    font-style: italic;
}

.video-description a, .about-description a {
    color: #3b82f6;
    text-decoration: underline;
}

.video-description a:hover, .about-description a:hover {
    color: #2563eb;
}