/* ═══════════════════════════════════════════════════════════════
   VØRTEX — Video Streaming Platform
   App-Style Interface (YouTube/Netflix inspired)
   ═══════════════════════════════════════════════════════════════ */

/* CSS Variables */
:root {
    /* Colors - Dark Theme */
    --bg-primary: #0f0f0f;
    --bg-secondary: #181818;
    --bg-tertiary: #212121;
    --bg-elevated: #272727;
    --bg-hover: #3f3f3f;
    
    /* Accent Colors */
    --accent-primary: #ff4444;
    --accent-secondary: #00d4ff;
    --accent-gradient: linear-gradient(135deg, #ff4444 0%, #ff6b6b 100%);
    
    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #aaaaaa;
    --text-muted: #717171;
    
    /* Sidebar */
    --sidebar-width: 240px;
    --sidebar-collapsed: 72px;
    
    /* Topbar */
    --topbar-height: 56px;
    
    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    /* Transitions */
    --transition-fast: 100ms ease;
    --transition-normal: 200ms ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
    overflow-x: hidden;
}

/* ═══════════════════════════════════════════════════════════════
   Sidebar
   ═══════════════════════════════════════════════════════════════ */

.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--bg-secondary);
    border-right: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: width var(--transition-normal), transform var(--transition-normal);
}

.sidebar.collapsed {
    width: var(--sidebar-collapsed);
}

.sidebar.collapsed .logo-text,
.sidebar.collapsed .sidebar-label,
.sidebar.collapsed .nav-section-title,
.sidebar.collapsed .live-indicator {
    display: none;
}

.sidebar.collapsed .sidebar-btn {
    justify-content: center;
    padding: var(--space-md);
}

.sidebar.collapsed .sidebar-icon {
    margin-right: 0;
}

.sidebar-header {
    padding: var(--space-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    text-decoration: none;
    color: var(--text-primary);
}

.logo-icon {
    font-size: 1.5rem;
    color: var(--accent-primary);
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sidebar-nav {
    flex: 1;
    padding: var(--space-sm);
    overflow-y: auto;
}

.nav-section {
    margin-bottom: var(--space-sm);
}

.nav-section-title {
    padding: var(--space-sm) var(--space-md);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
}

.nav-divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.1);
    margin: var(--space-sm) var(--space-md);
}

.sidebar-btn {
    display: flex;
    align-items: center;
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: left;
}

.sidebar-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.sidebar-btn.active {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.sidebar-icon {
    font-size: 1.25rem;
    margin-right: var(--space-md);
    flex-shrink: 0;
}

.sidebar-label {
    flex: 1;
    white-space: nowrap;
}

.live-indicator {
    width: 8px;
    height: 8px;
    background: var(--accent-primary);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

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

.sidebar-footer {
    padding: var(--space-md);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.sidebar-stats {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.stat-live {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* ═══════════════════════════════════════════════════════════════
   Main Wrapper
   ═══════════════════════════════════════════════════════════════ */

.main-wrapper {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    transition: margin-left var(--transition-normal);
}

body.sidebar-collapsed .main-wrapper {
    margin-left: var(--sidebar-collapsed);
}

/* ═══════════════════════════════════════════════════════════════
   Top Bar
   ═══════════════════════════════════════════════════════════════ */

.topbar {
    position: sticky;
    top: 0;
    height: var(--topbar-height);
    background: var(--bg-primary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    padding: 0 var(--space-lg);
    gap: var(--space-lg);
    z-index: 50;
}

.menu-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-primary);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.menu-toggle:hover {
    background: var(--bg-hover);
}

.search-container {
    flex: 1;
    max-width: 600px;
}

.search-box {
    display: flex;
    align-items: center;
    background: var(--bg-secondary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 40px;
    padding: 0 var(--space-md);
    transition: all var(--transition-fast);
}

.search-box:focus-within {
    border-color: var(--accent-secondary);
    background: var(--bg-tertiary);
}

.search-icon {
    color: var(--text-muted);
    flex-shrink: 0;
}

.search-input {
    flex: 1;
    padding: var(--space-sm) var(--space-md);
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
}

.search-input::placeholder {
    color: var(--text-muted);
}

.search-input:focus {
    outline: none;
}

.search-clear {
    display: none;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: var(--bg-hover);
    border: none;
    border-radius: 50%;
    color: var(--text-secondary);
    cursor: pointer;
}

.search-clear.visible {
    display: flex;
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.live-now-badge {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: rgba(255, 68, 68, 0.15);
    border: 1px solid rgba(255, 68, 68, 0.3);
    border-radius: 20px;
    color: var(--accent-primary);
    font-size: 0.85rem;
    font-weight: 500;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background: var(--accent-primary);
    border-radius: 50%;
    animation: pulse 1.5s infinite;
}

/* ═══════════════════════════════════════════════════════════════
   Main Content
   ═══════════════════════════════════════════════════════════════ */

.main-content {
    padding: var(--space-lg);
}

/* Featured Banner */
.featured-banner {
    position: relative;
    height: 280px;
    border-radius: var(--radius-xl);
    overflow: hidden;
    margin-bottom: var(--space-xl);
    cursor: pointer;
}

.featured-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    filter: brightness(0.4);
    transition: transform 0.5s ease, filter 0.3s ease;
}

.featured-banner:hover .featured-bg {
    transform: scale(1.05);
    filter: brightness(0.5);
}

.featured-content {
    position: relative;
    z-index: 1;
    height: 100%;
    display: flex;
    align-items: flex-end;
    padding: var(--space-xl);
    background: linear-gradient(to top, rgba(0,0,0,0.9) 0%, transparent 100%);
}

.featured-info {
    max-width: 600px;
}

.featured-badge {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    background: var(--accent-primary);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
    animation: pulse 2s infinite;
}

.featured-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
    line-height: 1.2;
}

.featured-description {
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
    font-size: 1rem;
}

.featured-play-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    background: var(--text-primary);
    border: none;
    border-radius: var(--radius-md);
    color: var(--bg-primary);
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.featured-play-btn:hover {
    background: var(--text-secondary);
    transform: scale(1.05);
}

/* Content Area */
.content-area {
    /* No extra styles needed */
}

.content-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-lg);
    flex-wrap: wrap;
    gap: var(--space-md);
}

.content-title {
    font-size: 1.5rem;
    font-weight: 600;
}

.content-filters {
    display: flex;
    gap: var(--space-sm);
}

.filter-btn {
    padding: var(--space-sm) var(--space-md);
    background: var(--bg-secondary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.filter-btn.active {
    background: var(--text-primary);
    color: var(--bg-primary);
    border-color: transparent;
}

/* ═══════════════════════════════════════════════════════════════
   Video Grid
   ═══════════════════════════════════════════════════════════════ */

.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--space-lg);
}

.video-card {
    background: transparent;
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    transition: transform var(--transition-normal);
}

.video-card:hover {
    transform: translateY(-4px);
}

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

.video-card:hover .video-play {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.video-thumbnail {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    border-radius: var(--radius-lg);
    background: var(--bg-secondary);
}

.video-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.video-play {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.8);
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.8);
    border-radius: 50%;
    opacity: 0;
    transition: all var(--transition-normal);
}

.video-play svg {
    width: 24px;
    height: 24px;
    fill: white;
    margin-left: 3px;
}

.video-duration {
    position: absolute;
    bottom: var(--space-sm);
    right: var(--space-sm);
    padding: 2px var(--space-sm);
    background: rgba(0, 0, 0, 0.85);
    border-radius: var(--radius-sm);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    font-weight: 500;
    color: white;
}

.video-duration.live-badge {
    background: var(--accent-primary);
    animation: none;
}

.video-category-badge {
    position: absolute;
    top: var(--space-sm);
    left: var(--space-sm);
    padding: 2px var(--space-sm);
    background: rgba(0, 0, 0, 0.75);
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    color: var(--text-secondary);
}

.video-info {
    padding: var(--space-md) var(--space-xs);
}

.video-title {
    font-size: 0.95rem;
    font-weight: 500;
    line-height: 1.4;
    margin-bottom: var(--space-xs);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.video-description {
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.video-card.is-live .video-thumbnail::after {
    content: '';
    position: absolute;
    inset: 0;
    border: 2px solid var(--accent-primary);
    border-radius: var(--radius-lg);
    pointer-events: none;
}

/* ═══════════════════════════════════════════════════════════════
   Modal / Player
   ═══════════════════════════════════════════════════════════════ */

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

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

.modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
}

.modal-content {
    position: relative;
    width: 90%;
    max-width: 1100px;
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transform: translateY(20px) scale(0.95);
    transition: transform var(--transition-normal);
}

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

.modal-close {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.5);
    border: none;
    border-radius: 50%;
    color: var(--text-primary);
    cursor: pointer;
    z-index: 10;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.2);
}

.player-container {
    background: #000;
}

.player-wrapper {
    position: relative;
    width: 100%;
    padding-top: 56.25%;
}

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

.player-info {
    padding: var(--space-lg);
}

.player-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.player-description {
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
    line-height: 1.6;
}

.player-meta {
    display: flex;
    gap: var(--space-md);
}

.player-category {
    padding: var(--space-xs) var(--space-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.player-duration {
    padding: var(--space-xs) var(--space-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-family: 'JetBrains Mono', monospace;
    color: var(--text-secondary);
}

/* ═══════════════════════════════════════════════════════════════
   No Results
   ═══════════════════════════════════════════════════════════════ */

.no-results {
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--space-xl) * 2;
    color: var(--text-secondary);
}

.no-results-icon {
    font-size: 4rem;
    margin-bottom: var(--space-lg);
    opacity: 0.5;
}

.no-results-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

/* ═══════════════════════════════════════════════════════════════
   Responsive Design
   ═══════════════════════════════════════════════════════════════ */

@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-wrapper {
        margin-left: 0;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .featured-banner {
        height: 220px;
    }
    
    .featured-title {
        font-size: 1.5rem;
    }
}

@media (max-width: 768px) {
    .topbar {
        padding: 0 var(--space-md);
    }
    
    .live-now-badge {
        display: none;
    }
    
    .main-content {
        padding: var(--space-md);
    }
    
    .featured-banner {
        height: 180px;
    }
    
    .featured-content {
        padding: var(--space-md);
    }
    
    .featured-title {
        font-size: 1.25rem;
    }
    
    .featured-description {
        display: none;
    }
    
    .video-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: var(--space-md);
    }
    
    .content-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    .video-grid {
        grid-template-columns: 1fr;
    }
    
    .search-container {
        display: none;
    }
    
    .featured-banner {
        height: 150px;
        border-radius: var(--radius-md);
    }
    
    .featured-play-btn {
        padding: var(--space-sm) var(--space-md);
        font-size: 0.9rem;
    }
}

/* ═══════════════════════════════════════════════════════════════
   Scrollbar
   ═══════════════════════════════════════════════════════════════ */

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

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

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

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

/* ═══════════════════════════════════════════════════════════════
   Animations
   ═══════════════════════════════════════════════════════════════ */

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.video-card {
    animation: fadeIn 0.3s ease forwards;
    opacity: 0;
}

.video-card:nth-child(1) { animation-delay: 0.05s; }
.video-card:nth-child(2) { animation-delay: 0.1s; }
.video-card:nth-child(3) { animation-delay: 0.15s; }
.video-card:nth-child(4) { animation-delay: 0.2s; }
.video-card:nth-child(5) { animation-delay: 0.25s; }
.video-card:nth-child(6) { animation-delay: 0.3s; }
.video-card:nth-child(7) { animation-delay: 0.35s; }
.video-card:nth-child(8) { animation-delay: 0.4s; }
.video-card:nth-child(9) { animation-delay: 0.45s; }
.video-card:nth-child(10) { animation-delay: 0.5s; }
.video-card:nth-child(11) { animation-delay: 0.55s; }
.video-card:nth-child(12) { animation-delay: 0.6s; }

/* Mobile Overlay */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 99;
}

@media (max-width: 1024px) {
    .sidebar.open ~ .sidebar-overlay {
        display: block;
    }
}