/* CSS Styles for Aura Player - Apple Liquid Glass UI */

:root {
  --bg-gradient-start: #090d16;
  --bg-gradient-end: #121829;
  --accent-color: #6366f1;
  --accent-color-hover: #4f46e5;
  --accent-glow: rgba(99, 102, 241, 0.4);

  --text-main: #ffffff;
  --text-muted: rgba(255, 255, 255, 0.65);
  --text-dim: rgba(255, 255, 255, 0.45);

  /* Glass Material Variables */
  --glass-bg: rgba(20, 20, 28, 0.25);
  --glass-tint: rgba(255, 255, 255, 0.14);
  --glass-bg-hover: rgba(255, 255, 255, 0.22);
  --glass-bg-active: rgba(255, 255, 255, 0.3);
  --glass-border: rgba(255, 255, 255, 0.18);
  --glass-border-light: rgba(255, 255, 255, 0.28);
  --glass-blur: blur(20px) saturate(120%);
  --glass-shadow: 0 12px 32px 0 rgba(0, 0, 0, 0.45), inset 0 1px 0 0 rgba(255, 255, 255, 0.25);
  --glass-shadow-soft: 0 8px 24px rgba(0, 0, 0, 0.3), inset 0 1px 0 0 rgba(255, 255, 255, 0.2);

  --pill-radius: 20px;
  --btn-radius: 50%;

  --transition-fast: 150ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 200ms cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: linear-gradient(135deg, var(--bg-gradient-start), var(--bg-gradient-end));
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
  overflow-x: hidden;
}

.page-container {
  width: 100%;
  max-width: 1000px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.header {
  text-align: center;
}

.title {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #ffffff 0%, #cbd5e1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 4px;
}

.subtitle {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 400;
}

/* Player Outer Wrapper */
.player-wrapper {
  width: 100%;
  display: flex;
  justify-content: center;
}

/* Container Queries enabled on player container */
.video-container {
  container-type: inline-size;
  container-name: player;
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background-color: #000;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.65), 0 0 0 1px rgba(255, 255, 255, 0.1);
  outline: none;
  user-select: none;
  -webkit-user-select: none;
}

.video-container video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

/* Bottom gradient scrim for controls readability */
.video-container::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 100px;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.35), transparent);
  pointer-events: none;
  opacity: 1;
  transition: opacity var(--transition-smooth);
  z-index: 5;
}

.video-container.controls-hidden::after {
  opacity: 0;
}

/* Hide cursor when controls hidden while playing */
.video-container.controls-hidden.is-playing {
  cursor: none;
}

/* Top-Center Action Feedback Toast (Glass Style) */
.action-feedback-overlay {
  position: absolute;
  top: 16px;
  left: 50%;
  transform: translateX(-50%) translateY(-10px) scale(0.95);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow-soft);
  color: var(--text-main);
  padding: 8px 18px;
  border-radius: 30px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
  z-index: 20;
}

.action-feedback-overlay.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0) scale(1);
}

/* Touch Seek Ripples */
.seek-ripple {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 35%;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  opacity: 0;
  transition: opacity 200ms ease;
  z-index: 15;
}

.seek-ripple-left { left: 0; background: radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.15), transparent 70%); }
.seek-ripple-right { right: 0; background: radial-gradient(circle at 80% 50%, rgba(255, 255, 255, 0.15), transparent 70%); }

.seek-ripple.active {
  opacity: 1;
}

.ripple-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  color: #fff;
  font-size: 0.85rem;
  font-weight: 600;
  background: rgba(0, 0, 0, 0.4);
  padding: 12px 18px;
  border-radius: 50px;
  backdrop-filter: blur(8px);
}

/* Center Overlay (Play/Pause, Spinner, Error, Replay) */
.center-overlay {
  position: absolute;
  inset: 0 0 var(--controls-h, 70px) 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  z-index: 10;
}

.central-play-btn {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--glass-tint);
  border: 1px solid var(--glass-border);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  box-shadow: var(--glass-shadow);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: scale(0.9);
  transition: transform var(--transition-fast), opacity var(--transition-fast), background var(--transition-fast);
}

/* BUG 4: Show central button whenever controls are visible */
.video-container:not(.controls-hidden) .central-play-btn {
  opacity: 1;
  pointer-events: auto;
  transform: scale(1);
}

@media (hover: hover) {
  .central-play-btn:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-light);
    transform: scale(1.08) !important;
  }
}

.central-play-btn:active {
  transform: scale(0.94) !important;
}

.central-play-btn .icon {
  width: 28px;
  height: 28px;
}

/* Loading Spinner */
.loading-spinner {
  display: flex;
  align-items: center;
  justify-content: center;
}

.spinner-ring {
  width: 48px;
  height: 48px;
  border: 4px solid rgba(255, 255, 255, 0.2);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* Error State */
.error-state {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(220, 38, 38, 0.3);
  border: 1px solid rgba(239, 68, 68, 0.4);
  backdrop-filter: var(--glass-blur);
  color: #fff;
  padding: 10px 18px;
  border-radius: 12px;
  font-size: 0.85rem;
  font-weight: 500;
}

.error-state .icon {
  width: 20px;
  height: 20px;
}

/* Liquid Glass Capsule / Pill Controls Bar */
.controls-bar {
  position: absolute;
  bottom: 12px;
  left: 12px;
  right: 12px;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  border-radius: var(--pill-radius);
  padding: 10px 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  opacity: 1;
  transform: translateY(0);
  transition: opacity var(--transition-smooth), transform var(--transition-smooth);
  z-index: 25;
}

/* Rapid and Responsive Controls Hiding */
.video-container.controls-hidden .controls-bar {
  opacity: 0 !important;
  transform: translateY(8px) !important;
  pointer-events: none !important;
}

/* Timeline / Progress Bar */
.timeline-container {
  position: relative;
  width: 100%;
  height: 16px;
  display: flex;
  align-items: center;
  cursor: pointer;
  touch-action: none;
  outline: none;
}

.timeline-track {
  position: relative;
  width: 100%;
  height: 4px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 10px;
  overflow: visible;
  transition: height var(--transition-fast);
}

.timeline-container:hover .timeline-track,
.timeline-container:focus-visible .timeline-track,
.timeline-container.dragging .timeline-track {
  height: 6px;
}

.buffered-bar {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  background: rgba(255, 255, 255, 0.35);
  border-radius: 10px;
  width: 0%;
}

.progress-bar {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  background: rgba(255, 255, 255, 0.95);
  border-radius: 10px;
  width: 0%;
}

.progress-thumb {
  position: absolute;
  right: -6px;
  top: 50%;
  transform: translateY(-50%) scale(0);
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #ffffff;
  box-shadow: 0 0 8px rgba(0, 0, 0, 0.5), 0 0 10px var(--accent-glow);
  transition: transform var(--transition-fast);
}

.timeline-container:hover .progress-thumb,
.timeline-container:focus-visible .progress-thumb,
.timeline-container.dragging .progress-thumb {
  transform: translateY(-50%) scale(1);
}

/* Clamped Timeline Tooltip */
.timeline-tooltip {
  position: absolute;
  bottom: 22px;
  transform: translateX(-50%);
  background: rgba(10, 15, 26, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: #fff;
  padding: 3px 8px;
  border-radius: 6px;
  font-size: 0.72rem;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-fast);
  border: 1px solid var(--glass-border);
  white-space: nowrap;
  z-index: 30;
}

.timeline-container:hover .timeline-tooltip,
.timeline-container.dragging .timeline-tooltip {
  opacity: 1;
}

/* Controls Row */
.controls-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.controls-group {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Control Buttons (Soft Glass Circles) */
.control-btn {
  background: transparent;
  border: none;
  color: var(--text-main);
  width: 36px;
  height: 36px;
  min-width: 36px;
  border-radius: var(--btn-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  outline: none;
  transition: background var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

@media (hover: hover) {
  .control-btn:hover {
    background: var(--glass-bg-hover);
    color: #fff;
  }
}

.control-btn:active {
  transform: scale(0.94);
  background: var(--glass-bg-active);
}

.control-btn:focus-visible,
.timeline-container:focus-visible {
  outline: 2px solid var(--accent-color);
  outline-offset: 2px;
}

.control-btn .icon {
  width: 20px;
  height: 20px;
}

.hidden {
  display: none !important;
}

/* Volume Control Container - Reserved Width Popover/Overlay without layout shifts */
.volume-container {
  display: flex;
  align-items: center;
  position: relative;
}

.volume-slider-wrapper {
  width: 0px;
  overflow: hidden;
  transition: width var(--transition-smooth), opacity var(--transition-smooth);
  opacity: 0;
  display: flex;
  align-items: center;
  padding-left: 0;
}

.volume-container:hover .volume-slider-wrapper,
.volume-container:focus-within .volume-slider-wrapper {
  width: 70px;
  opacity: 1;
  padding-left: 4px;
}

.volume-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 60px;
  height: 4px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.25);
  outline: none;
  cursor: pointer;
}

.volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: #ffffff;
  cursor: pointer;
  box-shadow: 0 0 4px rgba(0, 0, 0, 0.4);
}

.volume-slider::-moz-range-thumb {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: #ffffff;
  cursor: pointer;
  border: none;
}

/* Time Display */
.time-display {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
  margin-left: 2px;
  white-space: nowrap;
}

.time-display #current-time {
  color: var(--text-main);
}

.time-separator {
  margin: 0 2px;
  opacity: 0.5;
}

/* Speed Selector Menu (Sibling element opening upward relative to player container) */
.speed-btn {
  font-size: 0.8rem;
  font-weight: 600;
  width: 38px;
}

.speed-btn[aria-expanded="true"] {
  background: var(--glass-bg-hover);
}

.speed-menu {
  position: absolute;
  bottom: calc(var(--controls-h, 70px) + 8px);
  right: 12px;
  max-height: calc(100% - var(--controls-h, 70px) - 16px);
  overflow-y: auto;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  border-radius: 14px;
  padding: 6px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  z-index: 35;
  min-width: 110px;
}

.speed-option {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 0.78rem;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background var(--transition-fast), color var(--transition-fast);
}

@media (hover: hover) {
  .speed-option:hover {
    background: var(--glass-bg-hover);
    color: #fff;
  }
}

.speed-option.active {
  color: #ffffff;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.22);
}

.speed-option.active::after {
  content: '•';
  margin-left: 6px;
  font-size: 1rem;
}

/* Keyboard Hints Footer */
.footer {
  display: flex;
  justify-content: center;
}

.keyboard-hints {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px;
}

.hint-badge {
  font-size: 0.72rem;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.06);
  padding: 4px 8px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

kbd {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  padding: 1px 4px;
  border-radius: 4px;
  font-family: inherit;
  font-size: 0.68rem;
  font-weight: 600;
}

/* Container Queries for Overlap/Collision Prevention */
@container player (max-width: 520px) {
  .volume-slider-wrapper {
    display: none !important;
  }
  .controls-bar {
    padding: 6px 10px;
    bottom: 8px;
    left: 8px;
    right: 8px;
    gap: 4px;
  }
  .timeline-container {
    height: 12px;
  }
  .control-btn {
    width: 34px;
    height: 34px;
    min-width: 34px;
  }
  .central-play-btn {
    width: 48px;
    height: 48px;
  }
  .central-play-btn .icon {
    width: 22px;
    height: 22px;
  }
  .speed-menu {
    flex-direction: row;
    min-width: auto;
    right: 8px;
    left: 8px;
    justify-content: space-between;
    padding: 4px;
  }
  .speed-option {
    padding: 4px 8px;
    font-size: 0.75rem;
  }
  .speed-option.active::after {
    display: none;
  }
}

@container player (max-width: 420px) {
  #pip-btn {
    display: none !important;
  }
  .time-display {
    font-size: 0.72rem;
  }
}

@container player (max-width: 340px) {
  .speed-btn {
    font-size: 0.72rem;
    width: 32px;
  }
  .time-separator, #duration-time {
    display: none;
  }
  .central-play-btn {
    width: 40px;
    height: 40px;
  }
  .central-play-btn .icon {
    width: 18px;
    height: 18px;
  }
}

/* Fullscreen Mode Fixes */
.video-container:fullscreen,
.video-container:-webkit-full-screen {
  border-radius: 0 !important;
  aspect-ratio: auto !important;
  width: 100vw !important;
  height: 100vh !important;
  box-shadow: none !important;
}

.video-container:fullscreen .controls-bar,
.video-container:-webkit-full-screen .controls-bar {
  bottom: calc(16px + env(safe-area-inset-bottom, 0px));
  left: calc(16px + env(safe-area-inset-left, 0px));
  right: calc(16px + env(safe-area-inset-right, 0px));
}

/* Accessibility & Preferences Fallbacks */
@supports not (backdrop-filter: blur(1px)) {
  .controls-bar, .speed-menu, .central-play-btn, .action-feedback-overlay {
    background: rgba(15, 20, 30, 0.95);
  }
}

@media (prefers-reduced-transparency: reduce) {
  .controls-bar, .speed-menu, .central-play-btn, .action-feedback-overlay {
    background: rgba(15, 20, 30, 0.98);
    backdrop-filter: none;
  }
}

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