/* ==========================================================================
   Video Player Styles
   MPV-inspired, optimized for quality and performance
   ========================================================================== */

/* CSS Custom Properties */
:root {
  /* Backgrounds - Modern Dark Theme */
  --player-bg: #0a0e27;
  --controls-bg: rgba(15, 23, 42, 0.8);
  --controls-bg-blur: rgba(15, 23, 42, 0.4);
  --controls-hover-bg: rgba(30, 41, 59, 0.95);
  --backdrop-blur: 20px;
  
  /* Accent Colors - Modern Gradient Palette */
  --primary-accent: #3b82f6;
  --primary-accent-dark: #1e40af;
  --primary-accent-light: #60a5fa;
  --secondary-accent: #8b5cf6;
  --success-accent: #10b981;
  
  /* Text Colors */
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.8);
  --text-muted: rgba(255, 255, 255, 0.5);
  --text-dim: rgba(255, 255, 255, 0.3);
  
  /* Progress & UI Elements */
  --progress-bg: rgba(255, 255, 255, 0.15);
  --progress-played: linear-gradient(90deg, #3b82f6, #8b5cf6);
  --progress-buffered: rgba(255, 255, 255, 0.2);
  --progress-handle: #3b82f6;
  --progress-handle-shadow: 0 0 20px rgba(59, 130, 246, 0.6);
  
  /* Volume & Sliders */
  --volume-track: rgba(255, 255, 255, 0.15);
  --volume-fill: #3b82f6;
  
  /* Dropdowns & Menus */
  --dropdown-bg: rgba(15, 23, 42, 0.95);
  --dropdown-border: rgba(59, 130, 246, 0.2);
  --dropdown-item-hover: rgba(59, 130, 246, 0.15);
  --dropdown-item-active: rgba(59, 130, 246, 0.3);
  
  /* Settings & Modals */
  --settings-bg: rgba(10, 14, 39, 0.95);
  --modal-overlay: rgba(0, 0, 0, 0.5);
  
  /* Toggles & Switches */
  --toggle-active: #3b82f6;
  --toggle-inactive: rgba(255, 255, 255, 0.15);
  
  /* Borders & Dividers */
  --border-color: rgba(59, 130, 246, 0.1);
  --border-radius: 12px;
  --border-radius-sm: 8px;
  --border-radius-lg: 16px;
  
  /* Animations & Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 350ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.6);
}

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  background: linear-gradient(135deg, #0a0e27 0%, #1a1f3a 100%);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px;
  overflow: hidden;
}

/* ==========================================================================
   Load Screen
   ========================================================================== */

.load-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 500px;
  min-height: 350px;
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.9) 0%, rgba(26, 31, 58, 0.9) 100%);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-xl);
  backdrop-filter: blur(10px);
  animation: slideUp 0.6s ease-out;
}

.load-screen.hidden {
  display: none;
}

.load-content {
  text-align: center;
  padding: 40px;
}

.load-spinner {
  width: 50px;
  height: 50px;
  border: 4px solid rgba(59, 130, 246, 0.2);
  border-top-color: var(--primary-accent);
  border-radius: 50%;
  margin-bottom: 24px;
  animation: spin 0.8s linear infinite;
}

.load-content h1 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
  letter-spacing: -0.5px;
}

.load-content p {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 28px;
  line-height: 1.6;
}

/* ==========================================================================
   Player Container
   ========================================================================== */

.player-container {
  position: relative;
  width: 100%;
  max-width: 960px;
  aspect-ratio: 16 / 9;
  background: var(--player-bg);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  user-select: none;
  -webkit-user-select: none;
  border: 1px solid var(--border-color);
  animation: slideUp 0.6s ease-out;
}

.player-container.hidden {
  display: none;
}

.player-container.fullscreen {
  max-width: none;
  width: 100vw;
  height: 100vh;
  aspect-ratio: initial;
  border-radius: 0;
  border: none;
}

/* ==========================================================================
   Video Element - Hardware Accelerated
   ========================================================================== */

video {
  display: block;
  width: 100%;
  height: 100%;
  background: #000;
  cursor: pointer;
  object-fit: contain;
  
  /* GPU acceleration */
  will-change: transform;
  transform: translateZ(0);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  -webkit-perspective: 1000px;
  perspective: 1000px;
  
  /* Quality settings */
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;
  -webkit-font-smoothing: antialiased;
  
  /* Containment for better performance */
  contain: layout style paint;
}

.player-container.fullscreen video {
  object-fit: contain;
  object-position: center center;
}

/* ==========================================================================
   Loading Spinner
   ========================================================================== */

.loading-spinner {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 3;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--transition-fast);
}

.loading-spinner.visible {
  opacity: 1;
  visibility: visible;
}

.spinner {
  width: 44px;
  height: 44px;
  border: 3px solid rgba(255, 255, 255, 0.15);
  border-top-color: var(--accent-color);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

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

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

/* ==========================================================================
   Loading Spinner
   ========================================================================== */

.loading-spinner {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 3;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.loading-spinner.visible {
  opacity: 1;
  pointer-events: auto;
}

.spinner {
  width: 48px;
  height: 48px;
  border: 3px solid rgba(59, 130, 246, 0.15);
  border-top-color: var(--primary-accent);
  border-right-color: var(--primary-accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  filter: drop-shadow(0 0 12px rgba(59, 130, 246, 0.3));
}

/* ==========================================================================
   Stats Overlay
   ========================================================================== */

.stats-overlay {
  position: absolute;
  top: 16px;
  right: 16px;
  background: rgba(10, 14, 39, 0.9);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: var(--border-radius);
  padding: 16px;
  z-index: 15;
  min-width: 200px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  animation: slideUp 0.3s ease-out;
}

.stats-overlay.hidden {
  display: none;
}

.stats-content {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.stat-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.stat-label {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.stat-value {
  font-size: 12px;
  font-weight: 600;
  color: var(--primary-accent);
  font-variant-numeric: tabular-nums;
}

/* ==========================================================================
   Error Overlay
   ========================================================================== */

.error-overlay {
  position: absolute;
  inset: 0;
  background: rgba(10, 14, 39, 0.95);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 4;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.error-overlay.visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.error-content {
  text-align: center;
  color: var(--text-secondary);
  animation: slideUp 0.4s ease-out;
}

.error-content svg {
  margin-bottom: 16px;
  color: #ef4444;
  filter: drop-shadow(0 0 12px rgba(239, 68, 68, 0.3));
}

.error-content p {
  font-size: 15px;
  max-width: 320px;
  line-height: 1.6;
}

/* ==========================================================================
   Controls Container
   ========================================================================== */

.controls-container {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0.2) 50%, rgba(0, 0, 0, 0.4) 100%);
  padding: 32px 16px 16px 16px;
  z-index: 5;
  opacity: 1;
  visibility: visible;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  contain: layout style paint;
}

.player-container.controls-hidden .controls-container {
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.player-container.paused .controls-container {
  opacity: 1 !important;
  visibility: visible !important;
}

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

.progress-container {
  position: relative;
  width: 100%;
  height: 20px;
  cursor: pointer;
  padding: 8px 0;
  margin-bottom: 12px;
}

.progress-bar {
  position: relative;
  width: 100%;
  height: 3px;
  background: var(--progress-bg);
  border-radius: 2px;
  overflow: hidden;
  transition: height var(--transition-fast);
  backdrop-filter: blur(4px);
}

.progress-container:hover .progress-bar {
  height: 6px;
}

.progress-buffered {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  background: var(--progress-buffered);
  border-radius: 2px;
  width: 0%;
  will-change: width;
  transition: width 0.2s linear;
}

.progress-played {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  background: var(--progress-played);
  border-radius: 2px;
  width: 0%;
  will-change: width;
  transition: width 0.2s linear;
  box-shadow: 0 0 12px rgba(59, 130, 246, 0.5);
}

.progress-handle {
  position: absolute;
  right: -8px;
  top: 50%;
  transform: translateY(-50%) scale(0);
  width: 15px;
  height: 15px;
  background: var(--progress-handle);
  border-radius: 50%;
  box-shadow: var(--progress-handle-shadow), 0 0 8px rgba(0, 0, 0, 0.4);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  cursor: grab;
}

.progress-handle:active {
  cursor: grabbing;
}

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

.progress-tooltip {
  position: absolute;
  bottom: 28px;
  left: 0;
  transform: translateX(-50%);
  background: var(--controls-hover-bg);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 6px 10px;
  border-radius: var(--border-radius-sm);
  font-size: 12px;
  font-weight: 500;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-fast);
  white-space: nowrap;
  backdrop-filter: blur(10px);
}

.progress-container:hover .progress-tooltip {
  opacity: 1;
}

/* ==========================================================================
   Controls - Single Row Layout
   ========================================================================== */

.controls {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-wrap: nowrap;
}

.spacer {
  flex: 1;
}

.control-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  min-width: 40px;
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: var(--border-radius-sm);
  color: var(--text-primary);
  cursor: pointer;
  transition: background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
  position: relative;
  flex-shrink: 0;
  backdrop-filter: blur(4px);
}

.control-btn:hover {
  background: rgba(59, 130, 246, 0.2);
  border-color: rgba(59, 130, 246, 0.4);
  box-shadow: 0 0 16px rgba(59, 130, 246, 0.2);
  transform: translateY(-2px);
}

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

.control-btn.active {
  background: rgba(16, 185, 129, 0.3);
  border-color: rgba(16, 185, 129, 0.6);
  box-shadow: 0 0 20px rgba(16, 185, 129, 0.4);
}

.control-btn svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.control-btn:hover svg {
  transform: scale(1.1);
}

.control-btn .hidden {
  display: none;
}

/* ==========================================================================
   Volume Control
   ========================================================================== */

.volume-container {
  display: flex;
  align-items: center;
  gap: 0;
  flex-shrink: 0;
}

.volume-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 0;
  height: 3px;
  background: var(--volume-track);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
  margin: 0 4px;
  transition: width var(--transition-normal);
  overflow: hidden;
}

.volume-container:hover .volume-slider {
  width: 70px;
}

.volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 11px;
  height: 11px;
  background: var(--volume-fill);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: none;
}

.volume-slider::-moz-range-thumb {
  width: 11px;
  height: 11px;
  background: var(--volume-fill);
  border: none;
  border-radius: 50%;
  cursor: pointer;
}

/* ==========================================================================
   Time Display
   ========================================================================== */

.time-display {
  display: flex;
  align-items: center;
  gap: 3px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-primary);
  font-variant-numeric: tabular-nums;
  padding: 0 6px;
  white-space: nowrap;
  flex-shrink: 0;
}

.time-separator {
  color: var(--text-muted);
}

/* ==========================================================================
   Quality Badge
   ========================================================================== */

.quality-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px 10px;
  background: rgba(16, 185, 129, 0.2);
  border: 1px solid rgba(16, 185, 129, 0.4);
  border-radius: var(--border-radius-sm);
  color: var(--success-accent);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.3px;
  white-space: nowrap;
  flex-shrink: 0;
  cursor: help;
  transition: background var(--transition-fast), border-color var(--transition-fast);
}

.quality-badge:hover {
  background: rgba(16, 185, 129, 0.3);
  border-color: rgba(16, 185, 129, 0.6);
}

/* ==========================================================================
   Dropdown Menus (Speed)
   ========================================================================== */

.dropdown-container {
  position: relative;
  flex-shrink: 0;
}

.dropdown-btn {
  gap: 3px;
  width: auto;
  padding: 0 8px;
  font-size: 12px;
  font-weight: 600;
}

.dropdown-btn svg {
  width: 16px;
  height: 16px;
}

.speed-value {
  min-width: 16px;
  text-align: center;
}

.dropdown-arrow {
  font-size: 10px;
  color: var(--text-muted);
  margin-left: 1px;
}

.dropdown-menu {
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px) scale(0.95);
  background: rgba(20, 20, 25, 0.98);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius);
  padding: 8px 0;
  min-width: 140px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6);
  z-index: 100;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal), transform var(--transition-normal);
}

.dropdown-menu.visible {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0) scale(1);
}

.dropdown-item {
  display: block;
  width: 100%;
  padding: 10px 16px;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast), padding-left var(--transition-fast);
  white-space: nowrap;
}

.dropdown-item:hover {
  background: var(--dropdown-item-hover);
  color: var(--text-primary);
  padding-left: 20px;
}

.dropdown-item.active {
  color: var(--primary-accent);
  font-weight: 700;
  background: rgba(59, 130, 246, 0.15);
}

/* Custom Speed Input */
.custom-speed-container {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: 4px;
}

.custom-speed-input {
  width: 60px;
  padding: 4px 8px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 4px;
  color: var(--text-primary);
  font-size: 12px;
  font-family: inherit;
  outline: none;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.custom-speed-input:focus {
  border-color: var(--toggle-active);
  background: rgba(255, 255, 255, 0.15);
}

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

.custom-speed-btn {
  padding: 4px 10px;
  background: var(--toggle-active);
  border: none;
  border-radius: 4px;
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.custom-speed-btn:hover {
  background: #3a8eef;
}

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

/* ==========================================================================
   Buffer Slider
   ========================================================================== */

.slider-container {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
  max-width: 200px;
}

.buffer-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.buffer-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  background: var(--primary-accent);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 0 8px rgba(59, 130, 246, 0.4);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.buffer-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
  box-shadow: 0 0 12px rgba(59, 130, 246, 0.6);
}

.buffer-slider::-moz-range-thumb {
  width: 14px;
  height: 14px;
  background: var(--primary-accent);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 0 8px rgba(59, 130, 246, 0.4);
}

.slider-value {
  font-size: 12px;
  font-weight: 600;
  color: var(--primary-accent);
  min-width: 30px;
  text-align: right;
}

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

.settings-modal {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 30;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
  backdrop-filter: blur(var(--backdrop-blur));
  -webkit-backdrop-filter: blur(var(--backdrop-blur));
}

.settings-modal.visible {
  opacity: 1;
  visibility: visible;
}

.settings-content {
  background: var(--settings-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  width: 90%;
  max-width: 480px;
  max-height: 80vh;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  display: flex;
  flex-direction: column;
  animation: slideUp 0.4s ease-out;
}

.settings-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  border-bottom: 1px solid var(--border-color);
}

.settings-header h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.3px;
}

.settings-close {
  width: 36px;
  height: 36px;
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: var(--border-radius-sm);
  color: var(--text-secondary);
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

.settings-close:hover {
  background: rgba(59, 130, 246, 0.2);
  border-color: rgba(59, 130, 246, 0.4);
  color: var(--text-primary);
}

.settings-body {
  padding: 20px 24px;
  overflow-y: auto;
  flex: 1;
}

.settings-group {
  margin-bottom: 24px;
}

.settings-group:last-child {
  margin-bottom: 0;
}

.settings-group h3 {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
}

.setting-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.setting-row label {
  font-size: 14px;
  color: var(--text-primary);
}

.toggle-group {
  display: flex;
  gap: 4px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 6px;
  padding: 3px;
}

.toggle-btn {
  padding: 6px 12px;
  background: transparent;
  border: none;
  border-radius: 4px;
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.toggle-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
}

.toggle-btn.active {
  background: var(--toggle-active);
  color: #fff;
}

/* Shortcuts List */
.shortcuts-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.shortcut-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.shortcut-row:last-child {
  border-bottom: none;
}

.shortcut-row span {
  font-size: 13px;
  color: var(--text-secondary);
}

.shortcut-row kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 28px;
  height: 24px;
  padding: 0 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  font-family: inherit;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-primary);
}

/* ==========================================================================
   Keyboard Shortcuts Overlay
   ========================================================================== */

.shortcuts-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 20;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
  backdrop-filter: blur(var(--backdrop-blur));
  -webkit-backdrop-filter: blur(var(--backdrop-blur));
}

.shortcuts-overlay.visible {
  opacity: 1;
  visibility: visible;
}

.shortcuts-content {
  max-width: 500px;
  width: 90%;
  padding: 32px;
  background: var(--settings-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-xl);
  animation: slideUp 0.4s ease-out;
}

.shortcuts-content h2 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 24px;
  text-align: center;
  color: var(--text-primary);
  letter-spacing: -0.3px;
}

.shortcuts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 24px;
  margin-bottom: 24px;
}

.shortcut-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--text-secondary);
}

.shortcut-item kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 32px;
  height: 28px;
  padding: 0 6px;
  background: rgba(59, 130, 246, 0.15);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: var(--border-radius-sm);
  font-family: 'Menlo', 'Monaco', 'Courier New', monospace;
  font-size: 11px;
  font-weight: 600;
  color: var(--primary-accent);
  white-space: nowrap;
  flex-shrink: 0;
}

.shortcuts-close {
  display: block;
  margin: 20px auto 0;
  padding: 8px 20px;
  background: rgba(255, 255, 255, 0.12);
  border: none;
  border-radius: var(--border-radius);
  color: var(--text-primary);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition-fast);
}

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

/* ==========================================================================
   File Loader
   ========================================================================== */

.file-label {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 14px 32px;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.2) 0%, rgba(139, 92, 246, 0.15) 100%);
  border: 1.5px solid rgba(59, 130, 246, 0.4);
  border-radius: var(--border-radius);
  color: var(--text-primary);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition-normal), border-color var(--transition-normal), transform var(--transition-normal), box-shadow var(--transition-normal);
  backdrop-filter: blur(4px);
  box-shadow: 0 0 20px rgba(59, 130, 246, 0.1);
}

.file-label:hover {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.3) 0%, rgba(139, 92, 246, 0.25) 100%);
  border-color: rgba(59, 130, 246, 0.6);
  transform: translateY(-2px);
  box-shadow: 0 4px 24px rgba(59, 130, 246, 0.25);
}

.file-label:active {
  transform: translateY(0);
}

.file-label svg {
  width: 20px;
  height: 20px;
  transition: transform var(--transition-fast);
}

.file-label:hover svg {
  transform: scale(1.1);
}

.file-input {
  display: none;
}

/* ==========================================================================
   Hidden Utility
   ========================================================================== */

.hidden {
  display: none !important;
}

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

@media (max-width: 600px) {
  .controls {
    gap: 1px;
  }

  .control-btn {
    width: 32px;
    height: 32px;
    min-width: 32px;
  }

  .control-btn svg {
    width: 18px;
    height: 18px;
  }

  .time-display {
    font-size: 11px;
    padding: 0 4px;
  }

  .volume-container:hover .volume-slider {
    width: 50px;
  }

  .shortcuts-grid {
    grid-template-columns: 1fr;
  }

  .dropdown-btn {
    padding: 0 6px;
  }

  .settings-content {
    width: 95%;
    max-height: 90vh;
  }
}

/* ==========================================================================
   Accessibility
   ========================================================================== */

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

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ==========================================================================
   Drag and Drop Zone
   ========================================================================== */

.drop-zone {
  border: 3px dashed var(--primary-accent);
  border-radius: 12px;
  padding: 40px 20px;
  margin: 20px 0;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
  color: var(--primary-accent);
  background: rgba(59, 130, 246, 0.05);
}

.drop-zone:hover {
  background: rgba(59, 130, 246, 0.1);
  border-color: var(--primary-accent-light);
  transform: scale(1.02);
}

.drop-zone.drag-over {
  background: rgba(59, 130, 246, 0.2);
  border-color: var(--primary-accent-light);
  box-shadow: 0 0 20px rgba(59, 130, 246, 0.3);
  transform: scale(1.03);
}

.drop-zone svg {
  opacity: 0.8;
  transition: transform 0.2s ease;
}

.drop-zone:hover svg {
  transform: translateY(-4px);
}

.drop-zone.drag-over svg {
  opacity: 1;
  transform: scale(1.1) translateY(-4px);
}

/* ==========================================================================
   Warning Overlay
   ========================================================================== */

.warning-overlay {
  position: absolute;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(245, 158, 11, 0.9);
  border: 1px solid rgba(245, 158, 11, 0.6);
  border-radius: var(--border-radius);
  padding: 12px 20px;
  z-index: 25;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  animation: slideDown 0.3s ease-out;
}

.warning-overlay.visible {
  opacity: 1;
  visibility: visible;
}

.warning-content {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
}

.warning-content svg {
  flex-shrink: 0;
  color: #fff;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

/* ==========================================================================
   Picture-in-Picture Button
   ========================================================================== */

.pip-btn svg {
  width: 18px;
  height: 18px;
}

/* ==========================================================================
   Audio Track Selector
   ========================================================================== */

.audio-track-container {
  position: relative;
  flex-shrink: 0;
}

.audio-track-menu {
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px) scale(0.95);
  background: rgba(20, 20, 25, 0.98);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius);
  padding: 8px 0;
  min-width: 180px;
  max-height: 200px;
  overflow-y: auto;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6);
  z-index: 100;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal), transform var(--transition-normal);
}

.audio-track-menu.visible {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0) scale(1);
}

.audio-track-item {
  display: block;
  width: 100%;
  padding: 8px 16px;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast);
  white-space: nowrap;
}

.audio-track-item:hover {
  background: var(--dropdown-item-hover);
  color: var(--text-primary);
}

.audio-track-item.active {
  color: var(--primary-accent);
  font-weight: 600;
}

.audio-track-item .track-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.audio-track-item .track-name {
  font-size: 12px;
}

.audio-track-item .track-codec {
  font-size: 10px;
  color: var(--text-muted);
}

/* ==========================================================================
   Audio Delay Control
   ========================================================================== */

.audio-delay-control {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 8px;
}

.audio-delay-input {
  width: 60px;
  padding: 4px 6px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 4px;
  color: var(--text-primary);
  font-size: 11px;
  font-family: inherit;
  outline: none;
  text-align: center;
}

.audio-delay-input:focus {
  border-color: var(--toggle-active);
}

.audio-delay-label {
  font-size: 10px;
  color: var(--text-muted);
  white-space: nowrap;
}

/* ==========================================================================
   Equalizer Panel
   ========================================================================== */

.equalizer-panel {
  position: absolute;
  bottom: 100%;
  right: 0;
  transform: translateY(8px);
  background: rgba(10, 14, 39, 0.98);
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: var(--border-radius);
  padding: 16px;
  min-width: 240px;
  box-shadow: var(--shadow-xl);
  z-index: 100;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal), transform var(--transition-normal);
}

.equalizer-panel.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.equalizer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.equalizer-header h3 {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

.equalizer-close {
  width: 24px;
  height: 24px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.equalizer-presets {
  display: flex;
  gap: 6px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.eq-preset-btn {
  padding: 4px 10px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 4px;
  color: var(--text-secondary);
  font-size: 10px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.eq-preset-btn:hover {
  background: rgba(59, 130, 246, 0.15);
  border-color: rgba(59, 130, 246, 0.3);
}

.eq-preset-btn.active {
  background: rgba(59, 130, 246, 0.2);
  border-color: rgba(59, 130, 246, 0.5);
  color: var(--primary-accent);
}

.equalizer-sliders {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.eq-band {
  display: flex;
  align-items: center;
  gap: 10px;
}

.eq-band label {
  font-size: 10px;
  color: var(--text-muted);
  width: 40px;
  text-align: right;
}

.eq-slider {
  -webkit-appearance: none;
  appearance: none;
  flex: 1;
  height: 3px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 2px;
  outline: none;
}

.eq-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 12px;
  height: 12px;
  background: var(--primary-accent);
  border-radius: 50%;
  cursor: pointer;
}

.eq-slider::-moz-range-thumb {
  width: 12px;
  height: 12px;
  background: var(--primary-accent);
  border: none;
  border-radius: 50%;
  cursor: pointer;
}

.eq-value {
  font-size: 10px;
  color: var(--primary-accent);
  width: 30px;
  text-align: left;
}