<?php
// assets/css/style.css
?>
/* ============================================
   MK PREMIUM OTT - Premium Design System
   Netflix/Prime Video Inspired Dark UI
   ============================================ */

:root {
    /* Primary Colors */
    --bg-primary: #0a0a0f;
    --bg-secondary: #0f0f1a;
    --bg-tertiary: #1a1a2e;
    --bg-card: rgba(26, 26, 46, 0.6);
    --bg-glass: rgba(255, 255, 255, 0.05);
    
    /* Accent Colors */
    --accent-primary: #e50914;
    --accent-secondary: #ff3d47;
    --accent-gradient: linear-gradient(135deg, #e50914 0%, #ff3d47 100%);
    
    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #b3b3b3;
    --text-muted: #808080;
    
    /* Border & Shadow */
    --border-glass: rgba(255, 255, 255, 0.1);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-hover: 0 16px 48px rgba(229, 9, 20, 0.3);
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Poppins', sans-serif;
}

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--accent-primary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-secondary);
}

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: linear-gradient(180deg, rgba(10, 10, 15, 0.95) 0%, rgba(10, 10, 15, 0.8) 100%);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-glass);
    transition: all var(--transition-normal);
}

.header.scrolled {
    background: rgba(10, 10, 15, 0.98);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    font-family: var(--font-display);
    font-size: 28px;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
    letter-spacing: -0.5px;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-xl);
    list-style: none;
}

.nav-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--text-primary);
}

.nav-menu a.active::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--accent-gradient);
    border-radius: 2px;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.search-toggle,
.profile-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    backdrop-filter: blur(10px);
}

.search-toggle:hover,
.profile-btn:hover {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    transform: scale(1.05);
}

.mobile-menu-toggle {
    display: none;
    width: 40px;
    height: 40px;
    background: transparent;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    font-size: 24px;
}

/* Search Overlay */
.search-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(20px);
    z-index: 2000;
    display: none;
    align-items: flex-start;
    justify-content: center;
    padding-top: 100px;
}

.search-overlay.active {
    display: flex;
    animation: fadeIn 0.3s ease;
}

.search-container {
    width: 100%;
    max-width: 600px;
    padding: 0 var(--spacing-lg);
}

.search-input-wrapper {
    position: relative;
    margin-bottom: var(--spacing-xl);
}

.search-input {
    width: 100%;
    padding: var(--spacing-lg) var(--spacing-xl);
    padding-left: 60px;
    background: var(--bg-glass);
    border: 2px solid var(--border-glass);
    border-radius: var(--radius-xl);
    color: var(--text-primary);
    font-size: 18px;
    outline: none;
    transition: all var(--transition-fast);
}

.search-input:focus {
    border-color: var(--accent-primary);
    background: rgba(255, 255, 255, 0.08);
}

.search-icon {
    position: absolute;
    left: 24px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    font-size: 20px;
}

.search-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: 50%;
    color: var(--text-primary);
    cursor: pointer;
    font-size: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-results {
    max-height: 60vh;
    overflow-y: auto;
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    position: relative;
    height: 85vh;
    min-height: 600px;
    margin-bottom: var(--spacing-2xl);
    overflow: hidden;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease;
}

.hero-slide.active {
    opacity: 1;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        rgba(10, 10, 15, 0.9) 0%,
        rgba(10, 10, 15, 0.6) 50%,
        rgba(10, 10, 15, 0.3) 100%
    );
}

.hero-overlay::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 200px;
    background: linear-gradient(180deg, transparent 0%, var(--bg-primary) 100%);
}

.hero-content {
    position: relative;
    z-index: 10;
    height: 100%;
    display: flex;
    align-items: center;
    padding: 0 var(--spacing-lg);
    max-width: 1400px;
    margin: 0 auto;
}

.hero-info {
    max-width: 600px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--accent-gradient);
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(36px, 5vw, 64px);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.hero-description {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-md);
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn-primary {
    background: var(--accent-gradient);
    color: var(--text-primary);
    box-shadow: 0 4px 20px rgba(229, 9, 20, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(229, 9, 20, 0.6);
}

.btn-secondary {
    background: var(--bg-glass);
    color: var(--text-primary);
    border: 1px solid var(--border-glass);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--text-primary);
}

.hero-indicators {
    position: absolute;
    bottom: 60px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: var(--spacing-sm);
    z-index: 20;
}

.hero-indicator {
    width: 40px;
    height: 4px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 2px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.hero-indicator.active {
    background: var(--accent-primary);
    width: 60px;
}

/* ============================================
   CONTENT RAILS
   ============================================ */

.content-section {
    margin-bottom: var(--spacing-2xl);
    padding: 0 var(--spacing-lg);
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
}

.section-title {
    font-family: var(--font-display);
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
}

.section-more {
    color: var(--accent-primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: gap var(--transition-fast);
}

.section-more:hover {
    gap: var(--spacing-sm);
}

.rail-container {
    position: relative;
}

.rail-wrapper {
    display: flex;
    gap: var(--spacing-md);
    overflow-x: auto;
    scroll-behavior: smooth;
    scrollbar-width: none;
    -ms-overflow-style: none;
    padding: var(--spacing-sm) 0;
}

.rail-wrapper::-webkit-scrollbar {
    display: none;
}

.rail-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: 50%;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    z-index: 10;
    opacity: 0;
    transition: all var(--transition-fast);
    backdrop-filter: blur(10px);
}

.rail-container:hover .rail-nav {
    opacity: 1;
}

.rail-nav:hover {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    transform: translateY(-50%) scale(1.1);
}

.rail-nav.prev {
    left: -24px;
}

.rail-nav.next {
    right: -24px;
}

/* ============================================
   VIDEO CARDS
   ============================================ */

.video-card {
    flex: 0 0 280px;
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--bg-card);
    cursor: pointer;
    transition: all var(--transition-normal);
    text-decoration: none;
    color: inherit;
}

.video-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-hover);
    z-index: 5;
}

.video-card-image {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: var(--bg-tertiary);
}

.video-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.video-card:hover .video-card-image img {
    transform: scale(1.1);
}

.video-card-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.8) 100%);
    opacity: 0;
    transition: opacity var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.video-card:hover .video-card-overlay {
    opacity: 1;
}

.play-icon {
    width: 60px;
    height: 60px;
    background: var(--accent-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    transform: scale(0);
    transition: transform var(--transition-normal);
}

.video-card:hover .play-icon {
    transform: scale(1);
}

.video-card-badge {
    position: absolute;
    top: var(--spacing-sm);
    left: var(--spacing-sm);
    padding: 4px 10px;
    background: var(--accent-gradient);
    border-radius: var(--radius-sm);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.video-card-duration {
    position: absolute;
    bottom: var(--spacing-sm);
    right: var(--spacing-sm);
    padding: 4px 8px;
    background: rgba(0, 0, 0, 0.8);
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 600;
}

.video-card-info {
    padding: var(--spacing-md);
}

.video-card-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--text-primary);
}

.video-card-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 13px;
    color: var(--text-muted);
}

.video-card-category {
    color: var(--accent-primary);
    font-weight: 500;
}

/* ============================================
   CATEGORY TAGS
   ============================================ */

.category-tags {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-xl);
}

.category-tag {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-xl);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all var(--transition-fast);
    backdrop-filter: blur(10px);
}

.category-tag:hover,
.category-tag.active {
    background: var(--accent-gradient);
    border-color: var(--accent-primary);
    color: var(--text-primary);
    transform: translateY(-2px);
}

/* ============================================
   PROMOTION SLIDER
   ============================================ */

.promotion-slider {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    margin-bottom: var(--spacing-2xl);
}

.promotion-slide {
    display: none;
    padding: var(--spacing-2xl);
    background: linear-gradient(135deg, rgba(229, 9, 20, 0.1) 0%, rgba(255, 61, 71, 0.05) 100%);
}

.promotion-slide.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

.promotion-content {
    max-width: 600px;
}

.promotion-icon {
    font-size: 48px;
    margin-bottom: var(--spacing-md);
}

.promotion-heading {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.promotion-text {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.promotion-badge {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--accent-gradient);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

/* ============================================
   WATCH PAGE
   ============================================ */

.watch-container {
    padding-top: 80px;
    max-width: 1400px;
    margin: 0 auto;
}

.video-player-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    background: #000;
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-card);
}

.video-player-wrapper iframe {
    width: 100%;
    height: 100%;
    border: none;
}

.video-details {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.video-info {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    backdrop-filter: blur(10px);
}

.video-title {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.video-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.video-meta-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-secondary);
    font-size: 14px;
}

.video-description {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
}

.video-actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.related-videos {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    backdrop-filter: blur(10px);
}

.related-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
}

.related-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.related-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
    text-decoration: none;
    color: inherit;
}

.related-item:hover {
    background: var(--bg-glass);
}

.related-item-image {
    flex: 0 0 120px;
    aspect-ratio: 16 / 9;
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.related-item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.related-item-info {
    flex: 1;
}

.related-item-title {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.related-item-meta {
    font-size: 12px;
    color: var(--text-muted);
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-glass);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-section ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: color var(--transition-fast);
}

.footer-section ul li a:hover {
    color: var(--accent-primary);
}

.footer-bottom {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-lg) var(--spacing-lg) 0;
    border-top: 1px solid var(--border-glass);
    text-align: center;
    color: var(--text-muted);
    font-size: 14px;
}

/* ============================================
   MOBILE NAVIGATION
   ============================================ */

.mobile-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(10, 10, 15, 0.98);
    backdrop-filter: blur(20px);
    border-top: 1px solid var(--border-glass);
    z-index: 1000;
    padding: var(--spacing-sm) 0;
}

.mobile-nav-items {
    display: flex;
    justify-content: space-around;
    align-items: center;
}

.mobile-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: var(--spacing-sm);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 11px;
    transition: color var(--transition-fast);
}

.mobile-nav-item:hover,
.mobile-nav-item.active {
    color: var(--accent-primary);
}

.mobile-nav-item svg {
    width: 24px;
    height: 24px;
}

/* ============================================
   TOAST NOTIFICATIONS
   ============================================ */

.toast-container {
    position: fixed;
    top: 80px;
    right: 20px;
    z-index: 3000;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.toast {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    padding: var(--spacing-md) var(--spacing-lg);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-card);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    min-width: 300px;
    animation: slideInRight 0.3s ease;
}

.toast.success {
    border-left: 4px solid #10b981;
}

.toast.error {
    border-left: 4px solid var(--accent-primary);
}

.toast.info {
    border-left: 4px solid #3b82f6;
}

.toast-message {
    flex: 1;
    font-size: 14px;
    color: var(--text-primary);
}

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.fade-in {
    animation: fadeIn 0.5s ease;
}

.slide-up {
    animation: slideUp 0.5s ease;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 1024px) {
    .video-details {
        grid-template-columns: 1fr;
    }
    
    .video-card {
        flex: 0 0 240px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .mobile-nav {
        display: block;
    }
    
    body {
        padding-bottom: 70px;
    }
    
    .hero {
        height: 70vh;
        min-height: 500px;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .hero-description {
        font-size: 15px;
    }
    
    .video-card {
        flex: 0 0 200px;
    }
    
    .section-title {
        font-size: 22px;
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .content-section {
        padding: 0 var(--spacing-md);
    }
    
    .rail-nav {
        display: none;
    }
}

@media (max-width: 480px) {
    .hero {
        height: 60vh;
        min-height: 400px;
    }
    
    .hero-title {
        font-size: 28px;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .video-card {
        flex: 0 0 160px;
    }
    
    .video-title {
        font-size: 24px;
    }
}

/* ============================================
   LOADING STATES
   ============================================ */

.skeleton {
    background: linear-gradient(
        90deg,
        var(--bg-tertiary) 0%,
        var(--bg-glass) 50%,
        var(--bg-tertiary) 100%
    );
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
    border-radius: var(--radius-sm);
}

@keyframes loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }