/* ===============================================
   VidGen - Cyberpunk Glassmorphism Theme
   =============================================== */

:root {
    /* Cores Neon Cyberpunk */
    --neon-pink: #ff00ff;
    --neon-cyan: #00ffff;
    --neon-blue: #0080ff;
    --neon-purple: #8000ff;
    --neon-green: #00ff80;
    --neon-orange: #ff8000;
    
    /* Cores Base */
    --bg-dark: #0a0a0f;
    --bg-darker: #050508;
    --bg-card: rgba(15, 15, 25, 0.7);
    --bg-glass: rgba(255, 255, 255, 0.05);
    
    /* Texto */
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.4);
    
    /* Gradientes */
    --gradient-neon: linear-gradient(135deg, var(--neon-pink), var(--neon-cyan));
    --gradient-purple: linear-gradient(135deg, var(--neon-purple), var(--neon-pink));
    --gradient-blue: linear-gradient(135deg, var(--neon-blue), var(--neon-cyan));
    
    /* Glass Effect */
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    --glass-blur: blur(20px);
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ===============================================
   Lucide Icons Styling
   =============================================== */

[data-lucide] {
    display: inline-block;
    vertical-align: middle;
}

.logo-icon [data-lucide] {
    width: 28px;
    height: 28px;
}

.nav-icon [data-lucide] {
    width: 20px;
    height: 20px;
}

h3 [data-lucide] {
    margin-right: 0.5rem;
}

.btn [data-lucide] {
    margin-right: 0.35rem;
}

.video-status [data-lucide] {
    margin-right: 0.25rem;
}

/* ===============================================
   Reset & Base
   =============================================== */

*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    overflow-x: hidden;
}

/* Background Animation */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(ellipse at 20% 20%, rgba(128, 0, 255, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(0, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(255, 0, 255, 0.05) 0%, transparent 70%);
    pointer-events: none;
    z-index: -1;
}

/* Grid Lines Background */
body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: -1;
}

a {
    color: var(--neon-cyan);
    text-decoration: none;
    transition: var(--transition-fast);
}

a:hover {
    color: var(--neon-pink);
    text-shadow: 0 0 10px var(--neon-pink);
}

/* ===============================================
   Glass Card Component
   =============================================== */

.glass {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--glass-shadow);
}

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--glass-shadow);
    padding: var(--spacing-lg);
    transition: var(--transition-normal);
}

.glass-card:hover {
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 
        var(--glass-shadow),
        0 0 30px rgba(0, 255, 255, 0.1);
}

/* ===============================================
   Neon Glow Effects
   =============================================== */

.neon-glow {
    box-shadow: 
        0 0 5px var(--neon-cyan),
        0 0 10px var(--neon-cyan),
        0 0 20px var(--neon-cyan),
        0 0 40px var(--neon-cyan);
}

.neon-text {
    text-shadow: 
        0 0 5px currentColor,
        0 0 10px currentColor,
        0 0 20px currentColor;
}

.neon-border {
    border: 1px solid var(--neon-cyan);
    box-shadow: 
        0 0 5px var(--neon-cyan),
        inset 0 0 5px rgba(0, 255, 255, 0.1);
}

/* ===============================================
   Typography
   =============================================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: 2.5rem;
    background: var(--gradient-neon);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

h2 {
    font-size: 2rem;
    color: var(--text-primary);
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

/* ===============================================
   Buttons
   =============================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 0.95rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-normal);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-primary {
    background: var(--gradient-neon);
    color: var(--bg-dark);
    box-shadow: 0 4px 15px rgba(255, 0, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 
        0 6px 20px rgba(255, 0, 255, 0.4),
        0 0 30px rgba(0, 255, 255, 0.3);
}

.btn-secondary {
    background: var(--glass-bg);
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
    backdrop-filter: var(--glass-blur);
}

.btn-secondary:hover {
    border-color: var(--neon-cyan);
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.2);
}

.btn-danger {
    background: linear-gradient(135deg, #ff4444, #ff0066);
    color: white;
}

.btn-danger:hover {
    box-shadow: 0 0 20px rgba(255, 0, 102, 0.4);
}

.btn-success {
    background: linear-gradient(135deg, #00c853, #00e676);
    color: var(--bg-dark);
    box-shadow: 0 4px 15px rgba(0, 200, 83, 0.3);
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 
        0 6px 20px rgba(0, 200, 83, 0.4),
        0 0 30px rgba(0, 230, 118, 0.3);
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: 50%;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* ===============================================
   Forms
   =============================================== */

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.form-control {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1rem;
    transition: var(--transition-normal);
    backdrop-filter: var(--glass-blur);
}

.form-control:focus {
    outline: none;
    border-color: var(--neon-cyan);
    box-shadow: 
        0 0 0 3px rgba(0, 255, 255, 0.1),
        0 0 20px rgba(0, 255, 255, 0.1);
}

.form-control::placeholder {
    color: var(--text-muted);
}

textarea.form-control {
    min-height: 120px;
    resize: vertical;
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2300ffff' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

/* ===============================================
   Layout
   =============================================== */

.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.app-wrapper {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 280px;
    min-height: 100vh;
    background: var(--bg-card);
    border-right: 1px solid var(--glass-border);
    padding: var(--spacing-lg);
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    z-index: 100;
    backdrop-filter: var(--glass-blur);
}

.main-content {
    flex: 1;
    margin-left: 280px;
    padding: var(--spacing-xl);
    min-height: 100vh;
}

/* ===============================================
   Sidebar Styles
   =============================================== */

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xxl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--glass-border);
}

.logo-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-neon);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: 0 0 20px rgba(255, 0, 255, 0.3);
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--gradient-neon);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    list-style: none;
}

.nav-item {
    margin-bottom: var(--spacing-sm);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    transition: var(--transition-normal);
}

.nav-link:hover {
    background: var(--glass-bg);
    color: var(--neon-cyan);
    text-shadow: 0 0 10px var(--neon-cyan);
}

.nav-link.active {
    background: var(--glass-bg);
    color: var(--neon-cyan);
    border-left: 3px solid var(--neon-cyan);
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.1);
}

.nav-icon {
    font-size: 1.2rem;
    width: 24px;
    text-align: center;
}

/* ===============================================
   Header
   =============================================== */

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--glass-border);
}

.page-title {
    font-size: 1.8rem;
    font-weight: 700;
}

.header-actions {
    display: flex;
    gap: var(--spacing-md);
}

/* ===============================================
   Stats Cards
   =============================================== */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-neon);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(0, 255, 255, 0.1);
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-neon);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: var(--spacing-sm);
}

/* ===============================================
   Video Cards Grid
   =============================================== */

.videos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}

.video-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition-normal);
    cursor: pointer;
}

.video-card:hover {
    transform: translateY(-5px);
    border-color: var(--neon-cyan);
    box-shadow: 
        0 10px 40px rgba(0, 0, 0, 0.3),
        0 0 30px rgba(0, 255, 255, 0.1);
}

.video-thumbnail {
    width: 100%;
    height: 180px;
    background: var(--bg-darker);
    position: relative;
    overflow: hidden;
}

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

.video-thumbnail-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--bg-darker), var(--bg-dark));
    font-size: 3rem;
    color: var(--text-muted);
}

.video-duration {
    position: absolute;
    bottom: var(--spacing-sm);
    right: var(--spacing-sm);
    background: rgba(0, 0, 0, 0.8);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 600;
}

.video-info {
    padding: var(--spacing-lg);
}

.video-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.video-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: 0.85rem;
    color: var(--text-muted);
}

.video-status {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 2px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.status-draft {
    background: rgba(255, 128, 0, 0.2);
    color: var(--neon-orange);
}

.status-script_ready {
    background: rgba(0, 255, 255, 0.2);
    color: var(--neon-cyan);
}

.status-images_ready {
    background: rgba(128, 0, 255, 0.2);
    color: var(--neon-purple);
}

.status-video_ready {
    background: rgba(0, 255, 128, 0.2);
    color: var(--neon-green);
}

/* ===============================================
   Modal
   =============================================== */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9) translateY(20px);
    transition: var(--transition-normal);
    box-shadow: 
        0 25px 50px rgba(0, 0, 0, 0.5),
        0 0 100px rgba(0, 255, 255, 0.1);
}

.modal-overlay.active .modal {
    transform: scale(1) translateY(0);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--glass-border);
}

.modal-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin: 0;
}

.modal-close {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition-fast);
}

.modal-close:hover {
    border-color: var(--neon-pink);
    color: var(--neon-pink);
}

.modal-body {
    padding: var(--spacing-lg);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    border-top: 1px solid var(--glass-border);
}

/* ===============================================
   Segments Editor
   =============================================== */

.segments-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.segment-item {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    display: grid;
    grid-template-columns: 60px 1fr 100px auto;
    gap: var(--spacing-md);
    align-items: center;
    transition: var(--transition-fast);
}

.segment-item:hover {
    border-color: var(--neon-cyan);
}

.segment-number {
    width: 40px;
    height: 40px;
    background: var(--gradient-neon);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: var(--bg-dark);
}

.segment-text {
    flex: 1;
}

.segment-text textarea {
    width: 100%;
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-primary);
    font-size: 0.95rem;
    resize: none;
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
}

.segment-text textarea:focus {
    border-color: var(--neon-cyan);
    outline: none;
}

.segment-time {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-family: 'Monaco', 'Consolas', monospace;
}

.segment-image {
    width: 80px;
    height: 45px;
    background: var(--bg-darker);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.segment-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.segment-actions {
    display: flex;
    gap: var(--spacing-xs);
}

/* ===============================================
   Loading & Spinners
   =============================================== */

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--glass-border);
    border-top-color: var(--neon-cyan);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    z-index: 9999;
}

.loading-text {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

/* ===============================================
   Toast Notifications
   =============================================== */

.toast-container {
    position: fixed;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.toast {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md) var(--spacing-lg);
    min-width: 300px;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    animation: slideIn 0.3s ease;
    box-shadow: var(--glass-shadow);
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.toast-success {
    border-left: 3px solid var(--neon-green);
}

.toast-error {
    border-left: 3px solid #ff4444;
}

.toast-info {
    border-left: 3px solid var(--neon-cyan);
}

.toast-warning {
    border-left: 3px solid #ff9800;
    background: rgba(255, 152, 0, 0.15);
}

/* ===============================================
   Empty State
   =============================================== */

.empty-state {
    text-align: center;
    padding: var(--spacing-xxl);
}

.empty-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.3;
}

.empty-title {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-sm);
}

.empty-description {
    color: var(--text-muted);
    margin-bottom: var(--spacing-lg);
}

/* ===============================================
   Progress Bar
   =============================================== */

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--glass-bg);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--gradient-neon);
    border-radius: 4px;
    transition: width 0.3s ease;
    box-shadow: 0 0 10px var(--neon-cyan);
}

/* ===============================================
   Language Badge
   =============================================== */

.language-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* ===============================================
   Login Page
   =============================================== */

.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.login-card {
    width: 100%;
    max-width: 420px;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xxl);
    box-shadow: 
        var(--glass-shadow),
        0 0 100px rgba(255, 0, 255, 0.1);
}

.login-logo {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.login-logo .logo-icon {
    width: 80px;
    height: 80px;
    font-size: 2.5rem;
    margin: 0 auto var(--spacing-md);
}

.login-logo .logo-text {
    font-size: 2rem;
}

.login-form .btn {
    width: 100%;
    padding: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.login-error {
    background: rgba(255, 0, 0, 0.1);
    border: 1px solid rgba(255, 0, 0, 0.3);
    color: #ff6b6b;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

/* ===============================================
   Responsive Design
   =============================================== */

@media (max-width: 1024px) {
    .sidebar {
        width: 80px;
        padding: var(--spacing-md);
    }
    
    .logo-text,
    .nav-text {
        display: none;
    }
    
    .main-content {
        margin-left: 80px;
    }
    
    .nav-link {
        justify-content: center;
        padding: var(--spacing-md);
    }
    
    .logo {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .sidebar {
        display: none;
    }
    
    .main-content {
        margin-left: 0;
        padding: var(--spacing-md);
    }
    
    .videos-grid {
        grid-template-columns: 1fr;
    }
    
    .page-header {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
    
    .segment-item {
        grid-template-columns: 1fr;
    }
}

/* ===============================================
   Scrollbar Styling
   =============================================== */

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-darker);
}

::-webkit-scrollbar-thumb {
    background: var(--glass-border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--neon-cyan);
}

/* ===============================================
   User Menu
   =============================================== */

.user-menu {
    position: absolute;
    bottom: var(--spacing-lg);
    left: var(--spacing-lg);
    right: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--glass-border);
}

.user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.user-avatar {
    width: 40px;
    height: 40px;
    background: var(--gradient-purple);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

.user-name {
    font-weight: 600;
    font-size: 0.9rem;
}

.user-email {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ===============================================
   Animation Classes
   =============================================== */

.fade-in {
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.slide-up {
    animation: slideUp 0.5s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.pulse {
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}