/* ALPHA Enhanced Video Platform UI - Complete Feature Set
   Version: ALPHA-1.0.0
   Features: Theater Mode, Bookmarks, Search Suggestions, Infinite Scroll,
             Progress Tracking, Skeleton Loading, and more
*/

/* ==============================================
   Design Tokens & Variables
   ============================================== */
:root {
  /* Modern Color Palette */
  --color-bg-primary: #0f0f0f;
  --color-bg-secondary: #1a1a1a;
  --color-bg-tertiary: #272727;
  --color-bg-elevated: #3a3a3a;
  --color-bg-card: #1a1a1a;
  --color-bg-overlay: rgba(0, 0, 0, 0.9);
  
  --color-text-primary: #ffffff;
  --color-text-secondary: #aaaaaa;
  --color-text-tertiary: #717171;
  --color-text-muted: #606060;
  
  --color-brand-primary: #ff0000;
  --color-brand-secondary: #cc0000;
  --color-brand-gradient: linear-gradient(135deg, #ff0000 0%, #cc0000 100%);
  
  --color-accent: #065fd4;
  --color-accent-hover: #0956c4;
  --color-accent-light: rgba(6, 95, 212, 0.1);
  
  --color-success: #0f9d58;
  --color-warning: #f9ab00;
  --color-error: #ea4335;
  --color-border: #303030;
  --color-divider: #373737;
  
  /* Spacing Scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  
  /* Typography */
  --font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.3);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.4);
  --shadow-2xl: 0 25px 50px rgba(0, 0, 0, 0.5);
  
  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Z-index */
  --z-base: 10;
  --z-dropdown: 100;
  --z-modal: 200;
  --z-toast: 300;
}

/* ==============================================
   Global Resets & Base Styles
   ============================================== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.5;
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  padding-top: 56px;
}

/* ==============================================
   Header - Enhanced with Action Buttons
   ============================================== */
.site-header {
  background: var(--color-bg-primary);
  border-bottom: 1px solid var(--color-border);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-dropdown);
  height: 56px;
}

.header-content {
  max-width: none;
  margin: 0;
  padding: 0 var(--space-4);
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo-section {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.logo-icon {
  width: 2rem;
  height: 2rem;
  background: var(--color-brand-gradient);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
}

.site-header h1 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  white-space: nowrap;
}

.header-actions {
  display: flex;
  gap: var(--space-2);
}

.header-btn {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  transition: all var(--transition-base);
  display: grid;
  place-content: center;
  font-size: 1.2rem;
}

.header-btn:hover {
  background: var(--color-bg-tertiary);
  border-color: var(--color-text-secondary);
  transform: scale(1.05);
}

.mobile-menu-btn {
  display: none;
  background: transparent;
  border: none;
  color: var(--color-text-primary);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  transition: background-color var(--transition-base);
  place-content: center;
}

.mobile-menu-btn:hover {
  background: var(--color-bg-tertiary);
}

.mobile-close-btn {
  display: none;
  position: absolute;
  top: var(--space-2);
  right: var(--space-2);
  background: transparent;
  border: none;
  color: var(--color-text-primary);
  cursor: pointer;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  transition: all var(--transition-base);
}

.mobile-close-btn:hover {
  background: var(--color-bg-tertiary);
  color: var(--color-brand-primary);
}

.mobile-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  z-index: var(--z-dropdown);
  opacity: 0;
  transition: opacity var(--transition-slow);
}

.mobile-overlay.active {
  display: block;
  opacity: 1;
}

/* ==============================================
   Layout
   ============================================== */
.main-layout {
  display: flex;
  min-height: calc(100vh - 56px);
}

/* ==============================================
   Sidebar
   ============================================== */
.sidebar {
  width: 240px;
  background: var(--color-bg-primary);
  border-right: 1px solid var(--color-border);
  padding: var(--space-4);
  overflow-y: auto;
  flex-shrink: 0;
  position: sticky;
  top: 56px;
  height: calc(100vh - 56px);
}

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

.sidebar::-webkit-scrollbar-track {
  background: transparent;
}

.sidebar::-webkit-scrollbar-thumb {
  background: var(--color-bg-elevated);
  border-radius: var(--radius-md);
}

.sidebar::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-tertiary);
}

.filter-section {
  margin-bottom: var(--space-6);
}

.filter-title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.filter-title svg {
  color: var(--color-text-secondary);
}

.filter-field {
  margin-bottom: var(--space-3);
}

.filter-field label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2);
}

.select-wrapper {
  position: relative;
}

.filter-select {
  width: 100%;
  padding: var(--space-2) var(--space-8) var(--space-2) var(--space-3);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-size: var(--font-size-sm);
  font-family: inherit;
  appearance: none;
  cursor: pointer;
  transition: all var(--transition-base);
}

.filter-select:hover {
  border-color: var(--color-text-tertiary);
}

.filter-select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 2px var(--color-accent-light);
}

.select-arrow {
  position: absolute;
  right: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  color: var(--color-text-tertiary);
}

.checkbox-group {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
  padding: var(--space-2);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background-color var(--transition-base);
}

.checkbox-group:hover {
  background: var(--color-bg-secondary);
}

.checkbox-input {
  width: 1rem;
  height: 1rem;
  background: transparent;
  border: 2px solid var(--color-text-tertiary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  position: relative;
  appearance: none;
  transition: all var(--transition-base);
  flex-shrink: 0;
}

.checkbox-input:checked {
  background: var(--color-accent);
  border-color: var(--color-accent);
}

.checkbox-input:checked::after {
  content: '';
  position: absolute;
  left: 3px;
  top: 0px;
  width: 4px;
  height: 8px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.checkbox-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
  cursor: pointer;
  user-select: none;
}

.stats {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
  line-height: 1.4;
}

/* ==============================================
   Content Area
   ============================================== */
.content-area {
  flex: 1;
  padding: var(--space-6);
  overflow-x: hidden;
}

/* ==============================================
   Search Form - Enhanced with Clear Button
   ============================================== */
.search-form {
  max-width: 640px;
  margin: 0 auto var(--space-8);
  display: flex;
  gap: var(--space-3);
}

.search-input-wrapper {
  flex: 1;
  position: relative;
  display: flex;
  align-items: center;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  transition: border-color var(--transition-base);
}

.search-input-wrapper:focus-within {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 1px var(--color-accent);
}

.search-icon {
  position: absolute;
  left: var(--space-4);
  color: var(--color-text-tertiary);
  z-index: 1;
}

.search-input {
  width: 100%;
  padding: var(--space-3) var(--space-12) var(--space-3) var(--space-12);
  background: transparent;
  border: none;
  color: var(--color-text-primary);
  font-size: var(--font-size-base);
  font-family: inherit;
  outline: none;
}

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

.clear-search-btn {
  position: absolute;
  right: var(--space-3);
  background: transparent;
  border: none;
  color: var(--color-text-tertiary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: var(--space-1);
  line-height: 1;
  transition: color var(--transition-base);
}

.clear-search-btn:hover {
  color: var(--color-text-primary);
}

/* Search Suggestions Dropdown */
.search-suggestions {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-top: var(--space-2);
  max-height: 300px;
  overflow-y: auto;
  z-index: var(--z-dropdown);
  box-shadow: var(--shadow-lg);
}

.suggestions-header {
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  border-bottom: 1px solid var(--color-border);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.suggestion-item {
  padding: var(--space-3) var(--space-4);
  cursor: pointer;
  transition: background var(--transition-base);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.suggestion-item:hover,
.suggestion-item.selected {
  background: var(--color-bg-elevated);
}

.suggestion-icon {
  color: var(--color-text-tertiary);
}

.suggestion-text {
  color: var(--color-text-primary);
  flex: 1;
}

/* ==============================================
   Buttons
   ============================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border: none;
  border-radius: 18px;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  font-family: inherit;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  line-height: 1;
}

.btn-primary {
  background: var(--color-bg-tertiary);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  padding: var(--space-3) var(--space-5);
}

.btn-primary:hover:not(:disabled) {
  background: var(--color-bg-elevated);
  border-color: var(--color-text-tertiary);
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-spinner {
  animation: spin 1s linear infinite;
}

.btn-secondary {
  background: transparent;
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}

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

.btn-full {
  width: 100%;
}

.btn-retry {
  margin-left: var(--space-4);
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
}

.btn-retry:hover {
  background: var(--color-bg-elevated);
}

/* ==============================================
   Video Cards - Enhanced with Progress & Bookmarks
   ============================================== */
.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-6) var(--space-4);
  margin-bottom: var(--space-8);
}

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

.result-card:hover .result-thumb {
  transform: scale(1.02);
  border-radius: var(--radius-lg);
}

.result-thumbnail {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: var(--space-3);
  transition: transform var(--transition-slow);
}

.result-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.thumb-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: var(--color-text-tertiary);
  background: var(--color-bg-tertiary);
}

.runtime-badge {
  position: absolute;
  bottom: var(--space-2);
  right: var(--space-2);
  background: rgba(0, 0, 0, 0.8);
  color: white;
  padding: 2px var(--space-2);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
}

.license-badge {
  position: absolute;
  top: var(--space-2);
  left: var(--space-2);
  background: var(--color-success);
  color: white;
  padding: 2px var(--space-2);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
}

.progress-indicator {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 4px;
  background: var(--color-brand-primary);
  transition: width var(--transition-base);
}

.result-content {
  padding: 0;
}

.result-header {
  display: flex;
  flex-direction: column;
}

.result-title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.result-creator {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.result-meta {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.result-description {
  display: none;
}

.result-actions {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

.result-actions .btn {
  flex: 1;
  padding: var(--space-2);
  font-size: var(--font-size-xs);
  border-radius: var(--radius-md);
}

.btn-play {
  background: var(--color-brand-primary);
  color: white;
  border: none;
}

.btn-play:hover {
  background: var(--color-brand-secondary);
}

.btn-archive {
  background: transparent;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
}

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

.btn-share,
.btn-bookmark {
  background: transparent;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
  padding: var(--space-2) !important;
  flex: 0 0 auto !important;
  width: 2.5rem;
}

.btn-share:hover,
.btn-bookmark:hover {
  background: var(--color-bg-secondary);
  color: var(--color-text-primary);
}

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

/* Skeleton Loading States */
.result-card.skeleton {
  pointer-events: none;
}

.skeleton-thumbnail,
.skeleton-title,
.skeleton-meta,
.skeleton-button {
  background: linear-gradient(90deg, 
    var(--color-bg-tertiary) 25%, 
    var(--color-bg-elevated) 50%, 
    var(--color-bg-tertiary) 75%
  );
  background-size: 200% 100%;
  animation: skeleton-wave 1.5s infinite;
}

.skeleton-thumbnail {
  width: 100%;
  aspect-ratio: 16/9;
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-3);
}

.skeleton-content {
  padding: 0 var(--space-1);
}

.skeleton-title {
  height: 1.2rem;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-2);
}

.skeleton-meta {
  height: 0.8rem;
  width: 60%;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-3);
}

.skeleton-actions {
  display: flex;
  gap: var(--space-2);
}

.skeleton-button {
  flex: 1;
  height: 2rem;
  border-radius: var(--radius-md);
}

@keyframes skeleton-wave {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ==============================================
   ENHANCED VIDEO PLAYER - Theater Mode Support
   ============================================== */
.player {
  background: var(--color-bg-primary);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  margin-bottom: var(--space-8);
  visibility: hidden;
  max-height: 0;
  transition: max-height 0.5s ease-out, visibility 0s 0.5s;
  scroll-margin-top: 80px;
}

.player.visible {
  visibility: visible;
  max-height: 200vh;
  transition: max-height 0.5s ease-in;
}

/* Theater Mode */
.player.theater-mode {
  max-width: 100%;
  margin-left: calc(-1 * var(--space-6));
  margin-right: calc(-1 * var(--space-6));
  border-radius: 0;
}

.player.theater-mode .video-wrapper {
  padding-bottom: 45%;
}

.player.is-fullscreen {
  border-radius: 0;
  padding: 0;
}

.player.is-fullscreen .player-controls {
  display: none;
}

.player-controls {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4);
  background: var(--color-bg-secondary);
  border-bottom: 1px solid var(--color-border);
}

.play-pause-btn {
  background: var(--color-brand-primary);
  border: none;
  border-radius: 50%;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-base);
  color: white;
  flex-shrink: 0;
}

.play-pause-btn:hover {
  background: var(--color-brand-secondary);
  transform: scale(1.05);
}

.player-info h2 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  margin-bottom: var(--space-1);
}

.player-info p {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.video-wrapper {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  background: #000;
}

.player-loader {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #000;
  z-index: 5;
}

.video-player,
.video-element {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
  background: #000;
}

/* Custom Video Controls */
.video-controls {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0.7) 50%, transparent 100%);
  padding: var(--space-2) var(--space-4);
  transform: translateY(0);
  transition: transform 0.3s ease, opacity 0.3s ease;
  z-index: 10;
  opacity: 1;
}

.video-wrapper:not(:hover) .video-controls:not(.always-visible) {
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
}

.video-wrapper:hover .video-controls,
.video-controls.always-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Progress Bar */
.progress-container {
  width: 100%;
  height: 5px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 5px;
  cursor: pointer;
  position: relative;
  transform: translateY(-8px);
  transition: height var(--transition-base);
}

.video-controls:hover .progress-container {
  height: 7px;
}

.progress-bar {
  height: 100%;
  background: var(--color-brand-primary);
  border-radius: 5px;
  position: relative;
  width: 0;
  pointer-events: none;
}

.progress-bar::after {
  content: '';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translate(50%, -50%);
  width: 14px;
  height: 14px;
  background: white;
  border-radius: 50%;
  box-shadow: 0 2px 4px rgba(0,0,0,0.3);
  opacity: 0;
  transition: opacity 0.2s;
}

.video-controls:hover .progress-bar::after {
  opacity: 1;
}

.progress-buffered {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 5px;
  width: 0;
  pointer-events: none;
}

/* Control Buttons Row */
.controls-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.controls-left {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.controls-right {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-left: auto;
}

.control-btn {
  background: transparent;
  border: none;
  color: white;
  cursor: pointer;
  padding: var(--space-2);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-base);
}

.control-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: scale(1.1);
}

.control-btn:active {
  transform: scale(0.95);
}

.control-btn.play-pause-control {
  width: 40px;
  height: 40px;
}

.control-btn.play-pause-control .icon {
  font-size: 1.2rem;
}

/* Time Display */
.time-display {
  font-size: var(--font-size-sm);
  color: white;
  font-variant-numeric: tabular-nums;
  user-select: none;
}

/* Volume Control */
.volume-control {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.volume-slider {
  width: 0;
  opacity: 0;
  transition: width 0.3s, opacity 0.3s;
}

.volume-control:hover .volume-slider,
.volume-slider:focus {
  width: 80px;
  opacity: 1;
}

.slider {
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 12px;
  height: 12px;
  background: white;
  border-radius: 50%;
  cursor: pointer;
  transition: transform 0.2s;
}

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

.slider::-moz-range-thumb {
  width: 12px;
  height: 12px;
  background: white;
  border-radius: 50%;
  cursor: pointer;
  border: none;
  transition: transform 0.2s;
}

.slider::-moz-range-thumb:hover {
  transform: scale(1.2);
}

/* Speed Control */
.speed-control {
  position: relative;
}

.speed-btn {
  font-size: var(--font-size-sm);
  padding: var(--space-2) var(--space-3);
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  min-width: 50px;
  color: white;
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
}

.speed-btn:hover {
  background: rgba(255, 255, 255, 0.2);
}

.speed-menu {
  position: absolute;
  bottom: 100%;
  right: 0;
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-2);
  margin-bottom: var(--space-2);
  display: none;
  min-width: 80px;
  box-shadow: var(--shadow-lg);
}

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

.speed-option {
  display: block;
  width: 100%;
  padding: var(--space-2);
  background: transparent;
  border: none;
  color: var(--color-text-primary);
  cursor: pointer;
  text-align: left;
  border-radius: var(--radius-sm);
  transition: background var(--transition-base);
}

.speed-option:hover {
  background: var(--color-bg-elevated);
}

.speed-option.active {
  color: var(--color-brand-primary);
  font-weight: var(--font-weight-semibold);
}

/* Skip Animation */
.skip-animation {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.8);
  color: white;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  animation: skipFade 1s ease-out forwards;
  pointer-events: none;
}

.skip-animation.left {
  left: var(--space-4);
}

.skip-animation.right {
  right: var(--space-4);
}

@keyframes skipFade {
  0% { opacity: 0; transform: translateY(-50%) scale(0.8); }
  20% { opacity: 1; transform: translateY(-50%) scale(1.1); }
  80% { opacity: 1; transform: translateY(-50%) scale(1); }
  100% { opacity: 0; transform: translateY(-50%) scale(0.9); }
}

.player-info-container {
  margin-top: var(--space-6);
}

/* ==============================================
   Related Videos Section
   ============================================== */
.related-videos {
  background: var(--color-bg-secondary);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  margin-top: var(--space-6);
  border: 1px solid var(--color-border);
}

.related-videos h3 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-4);
  color: var(--color-text-primary);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-4);
}

.related-video-card {
  cursor: pointer;
  transition: transform var(--transition-base);
}

.related-video-card:hover {
  transform: translateY(-2px);
}

.related-thumbnail {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: var(--space-2);
}

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

.related-info {
  padding: 0 var(--space-1);
}

.related-title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  margin-bottom: var(--space-1);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-creator {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
}

/* ==============================================
   Modals - Bookmarks, Keyboard Shortcuts
   ============================================== */
.bookmarks-modal,
.keyboard-shortcuts-modal {
  position: fixed;
  inset: 0;
  background: var(--color-bg-overlay);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal);
  opacity: 0;
  transition: opacity var(--transition-slow);
}

.bookmarks-modal.visible,
.keyboard-shortcuts-modal.visible {
  opacity: 1;
}

.bookmarks-modal.closing,
.keyboard-shortcuts-modal.closing {
  opacity: 0;
}

.bookmarks-content,
.keyboard-shortcuts-content {
  background: var(--color-bg-secondary);
  border-radius: var(--radius-xl);
  max-width: 600px;
  width: 90%;
  max-height: 80vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-2xl);
  transform: translateY(20px);
  transition: transform var(--transition-slow);
}

.bookmarks-modal.visible .bookmarks-content,
.keyboard-shortcuts-modal.visible .keyboard-shortcuts-content {
  transform: translateY(0);
}

.bookmarks-header {
  padding: var(--space-6);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.bookmarks-header h2,
.keyboard-shortcuts-content h2 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

.close-modal {
  background: transparent;
  border: none;
  color: var(--color-text-secondary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: var(--space-2);
  line-height: 1;
  transition: color var(--transition-base);
}

.close-modal:hover {
  color: var(--color-text-primary);
}

.bookmarks-list {
  padding: var(--space-4);
  overflow-y: auto;
  flex: 1;
}

.no-bookmarks {
  text-align: center;
  color: var(--color-text-tertiary);
  padding: var(--space-8);
}

.bookmark-item {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-3);
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-3);
  transition: background var(--transition-base);
}

.bookmark-item:hover {
  background: var(--color-bg-elevated);
}

.bookmark-thumb {
  width: 80px;
  height: 45px;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

.bookmark-info {
  flex: 1;
}

.bookmark-title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  margin-bottom: var(--space-1);
}

.bookmark-creator {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
}

.bookmark-actions {
  display: flex;
  gap: var(--space-2);
}

.btn-play-bookmark,
.btn-remove-bookmark {
  padding: var(--space-2);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  color: var(--color-text-primary);
}

.btn-play-bookmark:hover,
.btn-remove-bookmark:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: white;
}

/* Keyboard Shortcuts Modal */
.keyboard-shortcuts-content {
  padding: var(--space-6);
}

.shortcuts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-6);
  margin-top: var(--space-4);
}

.shortcut-group h3 {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
}

.shortcut {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-2);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

kbd {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 2px 6px;
  font-family: monospace;
  font-size: var(--font-size-xs);
  color: var(--color-text-primary);
}

/* ==============================================
   Infinite Scroll
   ============================================== */
.scroll-sentinel {
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: var(--space-8) 0;
}

.loading-more {
  color: var(--color-text-tertiary);
  font-size: var(--font-size-sm);
}

.no-more {
  color: var(--color-text-tertiary);
  font-size: var(--font-size-sm);
  padding: var(--space-4);
  text-align: center;
  border-top: 1px solid var(--color-border);
}

.scroll-sentinel.loading .loading-more {
  animation: pulse 1s ease-in-out infinite;
}

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

/* ==============================================
   Pull to Refresh
   ============================================== */
.refresh-indicator {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 0;
  background: var(--color-accent);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  overflow: hidden;
  transition: height 0.3s ease;
  z-index: var(--z-dropdown);
}

/* ==============================================
   Offline Banner
   ============================================== */
.offline-banner {
  position: fixed;
  top: 56px;
  left: 0;
  right: 0;
  background: var(--color-warning);
  color: var(--color-bg-primary);
  padding: var(--space-2) var(--space-4);
  text-align: center;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  z-index: var(--z-dropdown);
  animation: slideDown 0.3s ease-out;
}

.offline-banner.hiding {
  animation: slideUp 0.3s ease-out forwards;
}

@keyframes slideDown {
  from { transform: translateY(-100%); }
  to { transform: translateY(0); }
}

@keyframes slideUp {
  from { transform: translateY(0); }
  to { transform: translateY(-100%); }
}

/* ==============================================
   Enhanced Playlist Styles
   ============================================== */
.playlist-container {
  background: var(--color-bg-secondary);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  overflow: hidden;
  margin-top: var(--space-6);
  box-shadow: var(--shadow-xl);
  position: relative;
}

.playlist-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, 
    var(--color-error) 0%, 
    var(--color-warning) 25%, 
    var(--color-success) 50%, 
    var(--color-accent) 75%, 
    var(--color-brand-primary) 100%
  );
  background-size: 200% 100%;
  animation: gradientShift 4s ease-in-out infinite;
}

@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.playlist-header {
  padding: var(--space-8);
  text-align: center;
  background: linear-gradient(135deg, var(--color-bg-tertiary) 0%, var(--color-bg-secondary) 100%);
  border-bottom: 1px solid var(--color-border);
}

.playlist-header h3 {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-3);
  color: var(--color-text-primary);
}

.playlist-header p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2);
}

.playlist-info {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: rgba(99, 102, 241, 0.1);
  padding: var(--space-2) var(--space-4);
  border-radius: 999px;
  border: 1px solid rgba(99, 102, 241, 0.2);
  font-weight: var(--font-weight-semibold);
  color: var(--color-accent);
  font-size: var(--font-size-sm);
  margin-top: var(--space-4);
}

.playlist-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-6);
  background: var(--color-bg-tertiary);
  border-bottom: 1px solid var(--color-border);
}

.playlist-nav-btn {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
}

.playlist-nav-btn:hover:not(:disabled) {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(6, 95, 212, 0.3);
}

.playlist-nav-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.playlist-current {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  font-size: var(--font-size-base);
  padding: var(--space-2) var(--space-4);
  background: var(--color-bg-tertiary);
  border-radius: 999px;
  min-width: 180px;
  text-align: center;
  border: 1px solid var(--color-border);
}

.episode-list {
  padding: var(--space-6);
  max-height: 60vh;
  overflow-y: auto;
}

.episode-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-4);
}

.episode-item {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4);
  background: var(--color-bg-tertiary);
  border: 2px solid transparent;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
}

.episode-item:hover {
  background: var(--color-bg-elevated);
  transform: translateX(4px);
  border-color: rgba(99, 102, 241, 0.3);
}

.episode-item.active {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.15) 0%, rgba(99, 102, 241, 0.05) 100%);
  border-color: var(--color-accent);
  box-shadow: 0 4px 12px rgba(6, 95, 212, 0.2);
}

.episode-item.unplayable {
  opacity: 0.6;
  background-color: var(--color-bg-tertiary);
  cursor: not-allowed;
  text-decoration: line-through;
}

.episode-thumb {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  flex-shrink: 0;
  box-shadow: var(--shadow-md);
}

.episode-number {
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-lg);
  color: white;
}

.playing-indicator,
.episode-playing {
  position: absolute;
  inset: 0;
  background: rgba(16, 185, 129, 0.9);
  border-radius: inherit;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: var(--font-weight-bold);
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.episode-playing {
  position: static;
  width: auto;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  margin-left: auto;
  background: var(--color-success);
}

.episode-info {
  flex: 1;
  min-width: 0;
}

.episode-info h5 {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-1);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.episode-meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
}

.playlist-description {
  padding: var(--space-6);
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-tertiary);
}

.playlist-description h4 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
}

.playlist-description-content {
  font-size: var(--font-size-base);
  line-height: 1.75;
  color: var(--color-text-secondary);
}

/* ==============================================
   Download Sections
   ============================================== */
.download-section,
.playlist-downloads {
  margin-top: var(--space-6);
  padding: var(--space-6);
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.download-section h4,
.playlist-downloads h4 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.download-group {
  margin-bottom: var(--space-4);
}

.download-group h5 {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.download-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  margin-bottom: var(--space-2);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  text-decoration: none;
  transition: all var(--transition-base);
}

.download-link:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--color-warning);
  transform: translateX(4px);
}

.download-link.download-all {
  background: rgba(245, 158, 11, 0.1);
  border-color: rgba(245, 158, 11, 0.3);
}

.download-link.download-all:hover {
  background: rgba(245, 158, 11, 0.2);
  border-color: var(--color-warning);
}

.download-icon {
  font-size: var(--font-size-xl);
  color: var(--color-warning);
  flex-shrink: 0;
}

.download-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
}

.download-quality {
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-sm);
}

.download-size {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
}

/* ==============================================
   Video Metadata
   ============================================== */
.video-metadata {
  background: var(--color-bg-secondary);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  padding: var(--space-8);
  position: relative;
  overflow: hidden;
}

.video-metadata::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
}

.video-metadata__title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-4);
  color: var(--color-text-primary);
}

.video-metadata__creator {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
  padding: var(--space-2) var(--space-4);
  background: rgba(99, 102, 241, 0.1);
  border-radius: 999px;
  border: 1px solid rgba(99, 102, 241, 0.2);
}

.video-metadata__description {
  font-size: var(--font-size-base);
  line-height: 1.75;
  color: var(--color-text-secondary);
  background: var(--color-bg-tertiary);
  padding: var(--space-6);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--color-accent);
  margin: var(--space-6) 0;
}

/* ==============================================
   Loading & Error States
   ============================================== */
.loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-12);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  gap: var(--space-4);
}

.loading-spinner {
  position: relative;
  width: 3rem;
  height: 3rem;
}

.spinner-ring {
  position: absolute;
  inset: 0;
  border: 3px solid rgba(99, 102, 241, 0.2);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 1s cubic-bezier(0.68, -0.55, 0.265, 1.55) infinite;
}

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

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

.error {
  padding: var(--space-4) var(--space-6);
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: var(--radius-md);
  color: var(--color-error);
  font-size: var(--font-size-sm);
  line-height: 1.75;
}

.error-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.error strong {
  font-weight: var(--font-weight-semibold);
}

/* ==============================================
   No Results & Messages
   ============================================== */
.no-results,
.fallback-message {
  text-align: center;
  padding: var(--space-12);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.no-results h3,
.fallback-message h3 {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-4);
  color: var(--color-text-primary);
}

.no-results p,
.fallback-message p {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2);
}

.no-results .btn,
.fallback-message .btn {
  margin-top: var(--space-4);
}

/* ==============================================
   Pagination
   ============================================== */
.pagination {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  justify-content: center;
  margin-top: var(--space-8);
  align-items: center;
}

.pagination button {
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-secondary);
  color: var(--color-text-primary);
  cursor: pointer;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  transition: all var(--transition-base);
}

.pagination button:hover {
  background: var(--color-bg-tertiary);
  border-color: var(--color-text-secondary);
}

.pagination button.active {
  background: var(--color-accent);
  color: white;
  border-color: transparent;
}

.pagination button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ==============================================
   Toast Messages
   ============================================== */
.toast {
  position: fixed;
  bottom: var(--space-4);
  left: 50%;
  transform: translateX(-50%);
  padding: var(--space-3) var(--space-6);
  background: var(--color-bg-elevated);
  color: var(--color-text-primary);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-2xl);
  z-index: var(--z-toast);
  animation: slideInUp 0.3s ease-out forwards;
}

.toast--success {
  background-color: var(--color-success);
}

.toast--error {
  background-color: var(--color-error);
}

.toast--info {
  background-color: var(--color-accent);
}

@keyframes slideInUp {
  from {
    transform: translate(-50%, 100%);
    opacity: 0;
  }
  to {
    transform: translate(-50%, 0);
    opacity: 1;
  }
}

/* ==============================================
   Accessibility
   ============================================== */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* ==============================================
   Mobile Responsive Design
   ============================================== */
@media (max-width: 1024px) {
  .sidebar {
    width: 200px;
  }
  
  .results-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  }
  
  .episode-grid {
    grid-template-columns: 1fr;
  }
  
  .related-grid {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }
}

@media (max-width: 768px) {
  :root {
    --font-size-base: 0.9375rem;
  }

  body {
    padding-top: 56px;
  }

  .header-content {
    padding: 0 var(--space-2) 0 var(--space-3);
  }

  .site-header h1 {
    font-size: var(--font-size-base);
  }

  .logo-section {
    gap: var(--space-2);
  }
  
  .logo-icon {
    width: 1.75rem;
    height: 1.75rem;
  }
  
  .header-actions {
    gap: var(--space-1);
  }
  
  .header-btn {
    width: 36px;
    height: 36px;
    font-size: 1rem;
  }

  .mobile-menu-btn {
    display: grid;
    order: -1;
  }
  
  .mobile-close-btn {
    display: grid;
    place-content: center;
  }

  .main-layout {
    flex-direction: column;
  }

  .sidebar {
    position: fixed;
    top: 0;
    left: -100%;
    width: 85%;
    max-width: 320px;
    height: 100vh;
    z-index: var(--z-modal);
    transition: left var(--transition-slow);
    border-right: 1px solid var(--color-border);
    border-radius: 0;
    padding: var(--space-8) var(--space-4) var(--space-4);
    top: 0;
    height: 100%;
  }

  .sidebar.open {
    left: 0;
    box-shadow: var(--shadow-xl);
  }

  .content-area {
    padding: var(--space-4);
  }
  
  .search-form {
    order: 1;
    margin: 0 0 var(--space-4);
    max-width: none;
    flex: 1;
    min-width: 0;
  }

  .search-input {
    font-size: 1rem;
    padding-left: var(--space-10);
    padding-right: var(--space-10);
  }
  
  .search-icon {
    left: var(--space-3);
    width: 1rem;
    height: 1rem;
  }
  
  #searchBtn {
    display: none;
  }

  .player {
    border-radius: 0;
    scroll-margin-top: 70px;
    margin: calc(-1 * var(--space-4)) calc(-1 * var(--space-4)) var(--space-6);
  }
  
  .player.theater-mode {
    margin: calc(-1 * var(--space-4));
  }

  .player-controls {
    padding: var(--space-3);
  }

  .play-pause-btn {
    width: 2.5rem;
    height: 2.5rem;
  }

  .results-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  .video-controls {
    padding: var(--space-2) var(--space-3);
  }
  
  .progress-container {
    height: 3px;
    margin-bottom: 0;
    transform: translateY(-5px);
  }
  
  .controls-row {
    flex-wrap: nowrap;
    gap: var(--space-2);
  }
  
  .controls-right {
    gap: var(--space-1);
  }
  
  .control-btn {
    padding: var(--space-2);
    font-size: 1.25rem;
    width: 36px;
    height: 36px;
  }

  .time-display {
    font-size: var(--font-size-xs);
  }
  
  .controls-left .control-btn#skipBackBtn,
  .controls-left .control-btn#skipForwardBtn {
    display: none;
  }

  .playlist-container {
    border-radius: 0;
    margin: calc(-1 * var(--space-4)) calc(-1 * var(--space-4)) var(--space-6);
  }

  .bookmarks-content,
  .keyboard-shortcuts-content {
    width: 95%;
    max-height: 90vh;
    border-radius: var(--radius-lg);
  }
  
  .shortcuts-grid {
    grid-template-columns: 1fr;
  }

  .pagination {
    padding: var(--space-4);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-md);
    margin: var(--space-4) 0;
  }
}

@media (max-width: 480px) {
  .header-content {
    padding: 0 var(--space-2);
  }
  
  .site-header h1 {
    font-size: var(--font-size-sm);
  }
  
  .logo-icon {
    width: 1.5rem;
    height: 1.5rem;
  }
  
  .content-area {
    padding: var(--space-3);
  }
  
  .result-title {
    font-size: var(--font-size-sm);
  }
  
  .episode-thumb {
    width: 40px;
    height: 40px;
  }

  .episode-number {
    font-size: var(--font-size-sm);
  }
  
  .time-display {
    display: none;
  }
  
  .speed-control,
  .volume-control {
    display: none;
  }
}

/* ==============================================
   Reduced Motion
   ============================================== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ==============================================
   High Contrast Mode
   ============================================== */
@media (prefers-contrast: high) {
  :root {
    --color-bg-primary: #000;
    --color-bg-secondary: #111;
    --color-bg-tertiary: #222;
    --color-text-primary: #fff;
    --color-text-secondary: #eee;
  }
}

/* ==============================================
   Custom Scrollbars
   ============================================== */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--color-bg-elevated);
  border-radius: var(--radius-md);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-tertiary);
}

::-webkit-scrollbar-corner {
  background: transparent;
}
/* Header Layout with Search Bar */
.header-content {
  max-width: none;
  margin: 0;
  padding: 0 var(--space-4);
  height: 56px;
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.logo-section {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

/* Header Search Form */
.header-search-form {
  flex: 1;
  max-width: 600px;
  margin: 0 var(--space-4);
}

.header-search-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  transition: border-color var(--transition-base);
  height: 40px;
}

.header-search-input-wrapper:focus-within {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 1px var(--color-accent);
}

.header-search-input {
  width: 100%;
  padding: 0 var(--space-10) 0 var(--space-10);
  background: transparent;
  border: none;
  color: var(--color-text-primary);
  font-size: var(--font-size-sm);
  font-family: inherit;
  outline: none;
  height: 100%;
}

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

.header-actions {
  display: flex;
  gap: var(--space-2);
  flex-shrink: 0;
}

.header-btn {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  transition: all var(--transition-base);
  display: grid;
  place-content: center;
  font-size: 1.2rem;
}

.header-btn:hover {
  background: var(--color-bg-tertiary);
  border-color: var(--color-text-secondary);
  transform: scale(1.05);
}

/* Mobile Responsive for Header */
@media (max-width: 768px) {
  .header-content {
    padding: 0 var(--space-2);
    gap: var(--space-2);
  }

  .site-header h1 {
    display: none; /* Hide title on mobile to save space */
  }

  .header-search-form {
    flex: 1;
    margin: 0 var(--space-2);
    max-width: none;
  }

  .header-search-input {
    font-size: 1rem;
    padding: 0 var(--space-8) 0 var(--space-8);
  }

  .search-icon {
    left: var(--space-3);
    width: 1rem;
    height: 1rem;
  }

  .clear-search-btn {
    right: var(--space-3);
  }

  .header-actions {
    gap: var(--space-1);
  }

  .header-btn {
    width: 36px;
    height: 36px;
    font-size: 1rem;
  }
}

@media (max-width: 480px) {
  .header-content {
    padding: 0 var(--space-1);
  }

  .logo-section {
    gap: var(--space-2);
  }
  
  .logo-icon {
    width: 1.5rem;
    height: 1.5rem;
  }

  .header-search-form {
    margin: 0 var(--space-1);
  }

  .header-btn {
    width: 32px;
    height: 32px;
    font-size: 0.9rem;
  }
}

/* Remove old search form styles since search is now in header */
.search-form {
  display: none; /* This class is no longer used */
}

/* Content area adjustment since search was moved */
.content-area {
  flex: 1;
  padding: var(--space-4) var(--space-6);
  overflow-x: hidden;
}
.result-card {
  background: transparent;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--transition-base);
}

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

.result-card:hover .result-thumb {
  transform: scale(1.05);
  border-radius: var(--radius-lg);
}

.result-card:active {
  transform: translateY(-2px);
}
@media (max-width: 768px) {
  .content-area {
    padding: var(--space-4);
  }
}