:root {
    --primary-color: #4361ee;
    --secondary-color: #4cc9f0;
    --accent-color: #f72585;
    --dark-color: #1e293b;
    --light-color: #f8fafc;
    --gray-color: #e2e8f0;
    --text-color: #1e293b;
    --text-light: #64748b;
    --success-color: #4ade80;
    --warning-color: #fbbf24;
    --danger-color: #f43f5e;
}

html {
  position: relative;
  min-height: 100%;
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
    margin-bottom: 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    color: var(--text-color);
    background-color: var(--light-color);
    line-height: 1.6;
}

.footer {
    background-color: var(--dark-color);
    color: white;
    padding: 2rem 0;
}

.footer h5 {
    color: white;
    font-weight: 600;
    margin-bottom: 1rem;
}

.footer .list-unstyled li {
    margin-bottom: 0.5rem;
}

/* Navigation */
.navbar {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    padding: 0.75rem 1rem;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    color: white !important;
    display: flex;
    align-items: center;
}

.navbar-brand i {
    margin-right: 0.5rem;
    font-size: 1.25rem;
}

.navbar-dark .navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.85);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    transition: all 0.2s ease;
}

.navbar-dark .navbar-nav .nav-link:hover {
    color: white;
    background-color: rgba(255, 255, 255, 0.1);
}

.navbar-dark .navbar-nav .nav-link i {
    margin-right: 0.25rem;
}

.dropdown-menu {
    border-radius: 0.5rem;
    border: 1px solid var(--gray-color);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    padding: 0.5rem 0;
}

.dropdown-item {
    padding: 0.5rem 1.25rem;
    transition: all 0.2s ease;
}

.dropdown-item:hover {
    background-color: rgba(67, 97, 238, 0.1);
}

.dropdown-item i {
    margin-right: 0.5rem;
    color: var(--primary-color);
}

/* Cards */
.card {
    border: 1px solid var(--gray-color);
    border-radius: 0.5rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: transform 0.2s, box-shadow 0.2s;
    margin-bottom: 1.5rem;
    overflow: hidden;
    height: 100%;
}

.card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.card-header {
    background-color: rgba(67, 97, 238, 0.05);
    border-bottom: 1px solid var(--gray-color);
    font-weight: 600;
    padding: 1rem 1.25rem;
}

.card-body {
    padding: 1.25rem;
}

.card-footer {
    background-color: rgba(67, 97, 238, 0.05);
    border-top: 1px solid var(--gray-color);
    padding: 0.75rem 1.25rem;
}

.card-img-top {
    height: 180px;
    object-fit: cover;
    border-top-left-radius: 8px;
    border-top-right-radius: 8px;
}

/* Buttons */
.btn {
    border-radius: 0.5rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: all 0.2s ease;
}

.btn i {
    margin-right: 0.25rem;
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-primary:hover {
    background-color: #3a56d4;
    border-color: #3a56d4;
}

.btn-outline-primary {
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-outline-primary:hover {
    background-color: var(--primary-color);
    color: white;
}

.btn-secondary {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
}

.btn-secondary:hover {
    background-color: #3db9e0;
    border-color: #3db9e0;
}

.btn-accent {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
    color: white;
}

.btn-accent:hover {
    background-color: #e61a75;
    border-color: #e61a75;
    color: white;
}

.btn-sm {
    padding: 0.25rem 0.75rem;
    font-size: 0.875rem;
}

/* Video List */
.video-list-item {
    display: flex;
    border-radius: 0.5rem;
    border: 1px solid var(--gray-color);
    background-color: white;
    margin-bottom: 1rem;
    overflow: hidden;
    transition: all 0.2s ease;
}

.video-list-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.video-thumbnail {
    position: relative;
    overflow: hidden;
}

.video-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.video-list-item:hover .video-thumbnail img {
    transform: scale(1.05);
}

.video-duration {
    position: absolute;
    bottom: 8px;
    right: 8px;
    background-color: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.8rem;
}

.video-details {
    padding: 1rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.list-view-thumbnail {
    width: 100%;
    height: 120px;
    object-fit: cover;
    border-radius: 0.5rem;
}

.video-title {
    font-weight: 600;
    margin-bottom: 0.5rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.video-channel {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.video-stats {
    display: flex;
    color: var(--text-light);
    font-size: 0.85rem;
}

.video-stats div {
    margin-right: 1rem;
}

/* Home page */
.hero-section {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 3rem 0;
    margin-bottom: 2rem;
    border-radius: 0.5rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.hero-section h1 {
    font-weight: 700;
    margin-bottom: 1rem;
}

.hero-section p {
    opacity: 0.9;
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

.feature-card {
    text-align: center;
    padding: 1.5rem;
}

.feature-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-weight: 600;
    margin-bottom: 1rem;
}

.hero-section h1 {
    font-weight: 700;
    margin-bottom: 1rem;
}

.hero-section p {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 2rem;
}

.feature-card {
    text-align: center;
    padding: 2rem;
}

.feature-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-weight: 600;
    margin-bottom: 1rem;
}

/* List view specific styles */
.list-view-thumbnail {
    width: 100%;
    height: 120px;
    object-fit: cover;
    border-radius: 8px;
}

.list-group-item {
    border: none;
    border-radius: 8px !important;
    margin-bottom: 0.5rem;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    transition: transform 0.2s, box-shadow 0.2s;
}

.list-group-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

/* Pagination */
.pagination {
    margin-top: 2rem;
}

.pagination .page-link {
    color: var(--primary-color);
    border-color: var(--gray-color);
    padding: 0.5rem 0.75rem;
    border-radius: 0.25rem;
    margin: 0 0.15rem;
}

.pagination .page-item.active .page-link {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.pagination .page-link:hover {
    background-color: rgba(67, 97, 238, 0.1);
}

/* Breadcrumb */
.breadcrumb {
    background-color: transparent;
    padding: 0.75rem 0;
}

.breadcrumb-item a {
    color: var(--primary-color);
    text-decoration: none;
}

.breadcrumb-item.active {
    color: var(--text-light);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
}

/* Utilities */
.text-truncate-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-clamp: 2;
}

.shadow-sm {
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05) !important;
}

.shadow-md {
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.08) !important;
}

.shadow-lg {
    box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1) !important;
}

.bg-gradient-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
}

.rounded {
    border-radius: 0.5rem !important;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .video-list-item {
        flex-direction: column;
    }
    
    .video-thumbnail img {
        width: 100%;
        height: auto;
    }
    
    .hero-section {
        padding: 2rem 0;
    }
}