/* --- Core Design System & Global Variables --- */
:root {
    --bg-dark: #0a0a0f;
    --bg-card: rgba(20, 20, 30, 0.45);
    --bg-glass: rgba(15, 15, 25, 0.6);
    --border-glass: rgba(255, 255, 255, 0.08);
    --border-glass-focus: rgba(139, 92, 246, 0.3);
    
    --primary: #8b5cf6;
    --primary-glow: rgba(139, 92, 246, 0.4);
    --secondary: #3b82f6;
    --secondary-glow: rgba(59, 130, 246, 0.4);
    
    --text-primary: #f3f4f6;
    --text-muted: #9ca3af;
    --text-dim: #6b7280;
    
    --glow-blur: 60px;
    --glow-opacity: 0.95;
    
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html, body {
    width: 100%;
    height: 100%;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-body);
    overflow: hidden;
}

/* --- Layout Structure --- */
.app-container {
    display: flex;
    width: 100%;
    height: 100%;
    position: relative;
    background-image: 
        radial-gradient(at 0% 0%, rgba(139, 92, 246, 0.07) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(59, 130, 246, 0.05) 0px, transparent 50%);
}

/* --- Sidebar Navigation --- */
.sidebar {
    width: 340px;
    height: 100%;
    background-color: var(--bg-glass);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-right: 1px solid var(--border-glass);
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: var(--transition-bounce);
    position: relative;
    flex-shrink: 0;
}

.sidebar.collapsed {
    transform: translateX(-340px);
    margin-right: -340px;
}

.sidebar-header {
    padding: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-glass);
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    filter: drop-shadow(0 0 8px var(--primary-glow));
}

.logo-area h1 {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, var(--text-primary) 30%, #a78bfa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.collapse-btn {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-glass);
    color: var(--text-muted);
    width: 32px;
    height: 32px;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
}

.collapse-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
    border-color: var(--border-glass-focus);
}

.sidebar.collapsed .collapse-btn svg {
    transform: rotate(180deg);
}

/* Search bar */
.search-container {
    padding: 16px 20px;
}

.search-wrapper {
    position: relative;
    width: 100%;
}

.search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    color: var(--text-dim);
    pointer-events: none;
    transition: var(--transition-smooth);
}

#videoSearch {
    width: 100%;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-glass);
    border-radius: 12px;
    padding: 12px 14px 12px 42px;
    font-family: var(--font-body);
    font-size: 0.9rem;
    color: var(--text-primary);
    outline: none;
    transition: var(--transition-smooth);
}

#videoSearch:focus {
    border-color: var(--primary);
    box-shadow: 0 0 12px var(--primary-glow);
    background: rgba(0, 0, 0, 0.35);
}

#videoSearch:focus + .search-icon {
    color: var(--primary);
}

/* Playlists view */
.playlist-header {
    padding: 8px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.playlist-header h2 {
    font-family: var(--font-heading);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-dim);
    font-weight: 700;
}

.video-list-container {
    flex: 1;
    overflow-y: auto;
    padding: 10px 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

/* Custom Scrollbar for Sidebar */
.video-list-container::-webkit-scrollbar {
    width: 5px;
}

.video-list-container::-webkit-scrollbar-track {
    background: transparent;
}

.video-list-container::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
}

.video-list-container::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.15);
}

/* Playlist Card Items */
.playlist-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-radius: 12px;
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    cursor: pointer;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.playlist-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 3px;
    background: linear-gradient(to bottom, var(--primary), var(--secondary));
    opacity: 0;
    transition: var(--transition-smooth);
}

.playlist-item:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-1px);
}

.playlist-item.active {
    background: rgba(139, 92, 246, 0.08);
    border-color: var(--border-glass-focus);
    box-shadow: inset 0 0 8px rgba(139, 92, 246, 0.05);
}

.playlist-item.active::before {
    opacity: 1;
}

.item-thumb-wrapper {
    width: 64px;
    height: 44px;
    border-radius: 6px;
    background: rgba(0, 0, 0, 0.3);
    overflow: hidden;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.item-thumb-wrapper svg {
    width: 20px;
    height: 20px;
    color: var(--text-dim);
    transition: var(--transition-smooth);
}

.playlist-item:hover .item-thumb-wrapper svg,
.playlist-item.active .item-thumb-wrapper svg {
    color: var(--primary);
    transform: scale(1.1);
}

.item-thumb-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.item-details {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
    justify-content: center;
}

.item-details h4 {
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--text-primary);
    white-space: normal;
    overflow: visible;
    text-overflow: clip;
    transition: var(--transition-smooth);
    line-height: 1.3;
}

.playlist-item.active .item-details h4 {
    color: #fff;
    font-weight: 600;
}

.item-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.72rem;
    color: var(--text-dim);
}

.item-type-badge {
    padding: 2px 6px;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 4px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 0.65rem;
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.playlist-item.active .item-type-badge {
    background: rgba(139, 92, 246, 0.15);
    border-color: rgba(139, 92, 246, 0.2);
    color: #c084fc;
}

.remove-btn {
    opacity: 0;
    background: transparent;
    border: none;
    color: var(--text-dim);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    justify-content: center;
}

.playlist-item:hover .remove-btn {
    opacity: 1;
}

.remove-btn:hover {
    color: #ef4444;
    background: rgba(239, 68, 68, 0.1);
}

/* File Import UI */
.import-area {
    padding: 16px 20px 24px;
    border-top: 1px solid var(--border-glass);
    background: rgba(5, 5, 10, 0.3);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.import-dropzone {
    border: 2px dashed rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 16px;
    text-align: center;
    cursor: pointer;
    position: relative;
    transition: var(--transition-smooth);
    background: rgba(0, 0, 0, 0.15);
}

.import-dropzone:hover, .import-dropzone.dragover {
    border-color: var(--primary);
    background: rgba(139, 92, 246, 0.04);
    box-shadow: 0 0 10px rgba(139, 92, 246, 0.05);
}

.file-input-hidden {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    opacity: 0;
    cursor: pointer;
}

.import-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    pointer-events: none;
}

.import-icon {
    width: 24px;
    height: 24px;
    color: var(--text-muted);
    transition: var(--transition-bounce);
}

.import-dropzone:hover .import-icon {
    color: var(--primary);
    transform: translateY(-3px);
}

.import-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
}

.import-subtitle {
    font-size: 0.72rem;
    color: var(--text-dim);
}

.url-importer {
    width: 100%;
}

.url-import-btn {
    width: 100%;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-glass);
    color: var(--text-muted);
    padding: 10px;
    border-radius: 10px;
    font-family: var(--font-body);
    font-size: 0.82rem;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: var(--transition-smooth);
}

.url-import-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
    border-color: var(--border-glass-focus);
}

/* --- Main Content Area --- */
.main-content {
    flex: 1;
    height: 100%;
    display: flex;
    flex-direction: column;
    padding: 30px;
    overflow-y: auto;
    position: relative;
    align-items: center;
}

/* Floating Sidebar Toggle Button */
.sidebar-toggle-floating {
    position: absolute;
    left: 20px;
    top: 20px;
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-glass);
    color: var(--text-primary);
    width: 44px;
    height: 44px;
    border-radius: 12px;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 90;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
    transition: var(--transition-smooth);
}

.sidebar-toggle-floating:hover {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 0 15px var(--primary-glow);
}

/* --- Theater Stage & Ambient Glow --- */
.theater-stage {
    width: 100%;
    max-width: 1100px;
    position: relative;
    margin-top: 15px;
    margin-bottom: 30px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 20px;
}

.ambient-glow-wrapper {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 1;
    pointer-events: none;
    transform: scale(1.06);
    opacity: var(--glow-opacity);
    transition: opacity 0.5s ease, filter 0.5s ease;
}

.ambient-glow-canvas {
    width: 100%;
    height: 100%;
    border-radius: 24px;
    filter: blur(var(--glow-blur));
    transform: translateZ(0); /* Hardware acceleration */
}

/* --- Custom Media Player --- */
.player-container {
    width: 100%;
    aspect-ratio: 16/9;
    background-color: #000;
    border-radius: 16px;
    border: 1px solid var(--border-glass);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
    overflow: hidden;
    position: relative;
    z-index: 2;
    outline: none;
}

.player-container:focus-within {
    border-color: var(--border-glass-focus);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6), 0 0 25px rgba(139, 92, 246, 0.15);
}

#mainVideo {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
    cursor: pointer;
}

/* Video Overlay Actions (Play/Pause indicator) */
.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
    background: rgba(0, 0, 0, 0.2);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 5;
}

.video-overlay.active {
    opacity: 1;
}

.overlay-action-icon {
    width: 80px;
    height: 80px;
    background: rgba(15, 15, 25, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: scale(0.6);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.video-overlay.active .overlay-action-icon {
    transform: scale(1);
    animation: pulseGlow 1.2s infinite ease-in-out;
}

@keyframes pulseGlow {
    0% { box-shadow: 0 0 0 0 rgba(139, 92, 246, 0.4); }
    70% { box-shadow: 0 0 0 20px rgba(139, 92, 246, 0); }
    100% { box-shadow: 0 0 0 0 rgba(139, 92, 246, 0); }
}

.overlay-action-icon svg {
    width: 32px;
    height: 32px;
}

/* Custom Controls Bar */
.custom-controls {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(to top, rgba(10, 10, 15, 0.95) 0%, rgba(10, 10, 15, 0.7) 60%, transparent 100%);
    padding: 12px 18px 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s ease;
    z-index: 10;
    pointer-events: auto;
}

/* When controls should be visible */
.player-container:hover .custom-controls,
.player-container.controls-active .custom-controls,
.player-container:focus-within .custom-controls {
    opacity: 1;
    transform: translateY(0);
}

/* Timeline/Seekbar styling */
.timeline-container {
    height: 20px;
    display: flex;
    align-items: center;
    cursor: pointer;
    position: relative;
}

.timeline-slider {
    width: 100%;
    height: 5px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 3px;
    position: relative;
    transition: height 0.2s ease;
}

.timeline-container:hover .timeline-slider {
    height: 7px;
}

.buffer-bar {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 3px;
    width: 0;
    pointer-events: none;
    transition: width 0.15s linear;
}

.progress-bar {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    background: linear-gradient(to right, var(--primary), var(--secondary));
    border-radius: 3px;
    width: 0;
    pointer-events: none;
}

.progress-handle {
    position: absolute;
    right: -6px;
    top: 50%;
    transform: translateY(-50%) scale(0);
    width: 13px;
    height: 13px;
    background: #fff;
    border-radius: 50%;
    box-shadow: 0 0 10px var(--primary-glow);
    transition: transform 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    pointer-events: none;
}

.timeline-container:hover .progress-handle {
    transform: translateY(-50%) scale(1);
}

.hover-time {
    position: absolute;
    bottom: 14px;
    background: rgba(15, 15, 25, 0.95);
    border: 1px solid var(--border-glass);
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 0.72rem;
    color: #fff;
    pointer-events: none;
    transform: translateX(-50%) scale(0.8);
    opacity: 0;
    transition: transform 0.15s ease, opacity 0.15s ease;
    z-index: 12;
}

.timeline-container:hover .hover-time {
    transform: translateX(-50%) scale(1);
    opacity: 1;
}

/* Controls Buttons Row */
.controls-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.controls-left, .controls-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.control-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    width: 38px;
    height: 38px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
    position: relative;
}

.control-btn:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.08);
}

.control-btn svg {
    width: 20px;
    height: 20px;
    transition: var(--transition-smooth);
}

.control-btn:active svg {
    transform: scale(0.9);
}

.play-pause-btn {
    color: #fff;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.play-pause-btn:hover {
    background: var(--primary);
    border-color: var(--primary);
    box-shadow: 0 0 12px var(--primary-glow);
}

.skip-btn {
    width: 32px;
    height: 32px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.skip-btn svg {
    width: 14px;
    height: 14px;
}

.skip-val {
    font-size: 0.55rem;
    font-weight: 700;
    margin-top: -1px;
}

/* Volume Slider Styles */
.volume-container {
    display: flex;
    align-items: center;
    gap: 4px;
}

.volume-slider-wrapper {
    width: 0;
    overflow: hidden;
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
}

.volume-container:hover .volume-slider-wrapper,
.volume-container:focus-within .volume-slider-wrapper {
    width: 70px;
}

.volume-slider {
    width: 60px;
    height: 4px;
    -webkit-appearance: none;
    appearance: none;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 2px;
    outline: none;
    cursor: pointer;
}

.volume-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.5);
    transition: transform 0.15s ease;
}

.volume-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

/* Time counter */
.time-display {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-muted);
    padding-left: 4px;
    pointer-events: none;
}

.time-separator {
    color: var(--text-dim);
    margin: 0 4px;
}

#currentTime {
    color: #fff;
}

/* Speed controller dropdown */
.speed-container {
    position: relative;
}

.speed-btn {
    font-size: 0.78rem;
    font-weight: 600;
    font-family: var(--font-body);
    width: auto;
    padding: 0 10px;
    border-radius: 8px;
    border: 1px solid var(--border-glass);
}

.speed-menu {
    position: absolute;
    bottom: 46px;
    right: 0;
    background: rgba(15, 15, 25, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-glass);
    border-radius: 12px;
    width: 110px;
    display: none;
    flex-direction: column;
    padding: 6px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    z-index: 15;
}

.speed-menu.active {
    display: flex;
}

.speed-menu button {
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 8px 12px;
    border-radius: 8px;
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 500;
    text-align: left;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.speed-menu button:hover {
    background: rgba(255, 255, 255, 0.05);
    color: #fff;
}

.speed-menu button.active {
    background: var(--primary);
    color: #fff;
    font-weight: 600;
}

/* --- Preferences Settings Panel Overlay --- */
.quick-settings-overlay {
    position: absolute;
    right: 20px;
    bottom: 74px;
    width: 290px;
    background: rgba(15, 15, 25, 0.96);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-glass);
    border-radius: 16px;
    padding: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    z-index: 15;
    opacity: 0;
    transform: translateY(15px) scale(0.95);
    pointer-events: none;
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.quick-settings-overlay.active {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}

.settings-close {
    position: absolute;
    top: 12px;
    right: 16px;
    background: transparent;
    border: none;
    color: var(--text-dim);
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.settings-close:hover {
    color: #fff;
}

.quick-settings-overlay h3 {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: #fff;
    border-bottom: 1px solid var(--border-glass);
    padding-bottom: 8px;
}

.setting-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 16px;
}

.setting-item:last-child {
    margin-bottom: 0;
}

.setting-item label {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* Custom Toggle Switch */
.toggle-switch {
    position: relative;
    width: 44px;
    height: 22px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-switch .slider {
    position: absolute;
    cursor: pointer;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--border-glass);
    border-radius: 34px;
    transition: .3s;
}

.toggle-switch .slider:before {
    position: absolute;
    content: "";
    height: 14px;
    width: 14px;
    left: 3px;
    bottom: 3px;
    background-color: #fff;
    border-radius: 50%;
    transition: .3s;
}

.toggle-switch input:checked + .slider {
    background-color: var(--primary);
}

.toggle-switch input:checked + .slider:before {
    transform: translateX(22px);
}

/* Slider Ranges for Settings */
.setting-item input[type="range"] {
    -webkit-appearance: none;
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 2px;
    outline: none;
    cursor: pointer;
}

.setting-item input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--primary);
    box-shadow: 0 0 5px var(--primary-glow);
}

/* Hidden Utility class */
.hidden {
    display: none !important;
}

/* --- Metadata Card Under Video --- */
.video-info-card {
    width: 100%;
    max-width: 1100px;
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-glass);
    border-radius: 16px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.info-header {
    display: flex;
    align-items: center;
    gap: 12px;
}

.info-tag {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 10px var(--primary-glow);
}

.info-meta {
    font-size: 0.78rem;
    color: var(--text-dim);
    font-weight: 500;
}

.video-info-card h2 {
    font-family: var(--font-heading);
    font-size: 1.45rem;
    font-weight: 700;
    color: #fff;
    letter-spacing: -0.3px;
}

.video-info-card p {
    font-size: 0.92rem;
    line-height: 1.6;
    color: var(--text-muted);
}

.quick-features {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 8px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 16px;
}

.feature-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-glass);
    border-radius: 20px;
    font-size: 0.78rem;
    color: var(--text-muted);
}

.feature-badge svg {
    color: var(--primary);
}

/* --- Modal Dialogs (Add URL Streams) --- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-container {
    width: 100%;
    max-width: 500px;
    background: rgba(20, 20, 30, 0.95);
    border: 1px solid var(--border-glass);
    border-radius: 20px;
    padding: 24px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.5);
    transform: scale(0.9);
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.modal-header h2 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    color: #fff;
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--text-dim);
    font-size: 1.8rem;
    line-height: 1;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.modal-close:hover {
    color: #fff;
}

.modal-body {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.modal-body p {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.5;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
}

.form-group input, .form-group textarea {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-glass);
    border-radius: 8px;
    padding: 10px 14px;
    color: #fff;
    font-family: var(--font-body);
    font-size: 0.88rem;
    outline: none;
    transition: var(--transition-smooth);
}

.form-group input:focus, .form-group textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 8px var(--primary-glow);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 24px;
    border-top: 1px solid var(--border-glass);
    padding-top: 16px;
}

.modal-btn {
    padding: 10px 20px;
    border-radius: 8px;
    font-family: var(--font-body);
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: none;
}

.modal-btn.primary {
    background: var(--primary);
    color: #fff;
}

.modal-btn.primary:hover {
    box-shadow: 0 0 12px var(--primary-glow);
    background: #7c3aed;
}

.modal-btn.secondary {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-glass);
    color: var(--text-muted);
}

.modal-btn.secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
}

/* --- Responsive Adaptations --- */
@media (max-width: 1024px) {
    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        height: 100%;
        transform: translateX(-340px);
        margin-right: 0;
        box-shadow: 10px 0 30px rgba(0,0,0,0.5);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .sidebar-toggle-floating {
        display: flex;
    }
    
    .main-content {
        padding: 80px 20px 20px;
    }
    
    .theater-stage {
        margin-top: 0;
    }
}

@media (max-width: 600px) {
    .main-content {
        padding: 80px 10px 10px;
    }
    
    .sidebar {
        width: 290px;
    }
    
    .video-info-card {
        padding: 16px;
    }
    
    .video-info-card h2 {
        font-size: 1.2rem;
    }
    
    .controls-left, .controls-right {
        gap: 6px;
    }
    
    .control-btn {
        width: 32px;
        height: 32px;
    }
    
    .time-display {
        font-size: 0.72rem;
    }
    
    .volume-container {
        display: none; /* Hide volume slider on narrow screens */
    }
}