/**
 * Audio Pages Styles
 * @file mini-app/css/pages/audio.css
 */

/* ==========================================
   FREE AUDIOS LIST PAGE
   ========================================== */

.free-audios-page {
  padding: var(--spacing-md);
}

.free-audios-header {
  margin-bottom: var(--spacing-lg);
  text-align: center;
}

.free-audios-header .page-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.free-audios-header .page-subtitle {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

/* Audio Cards List */
.audios-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.audio-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  cursor: pointer;
}

.audio-card:active {
  transform: scale(0.98);
  box-shadow: var(--shadow-md);
}

.audio-cover {
  width: 100%;
  aspect-ratio: 16/9;
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  margin-bottom: var(--spacing-md);
}

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

.audio-play-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.audio-card:hover .audio-play-overlay {
  opacity: 1;
}

.audio-play-icon {
  width: 60px;
  height: 60px;
  background: var(--primary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: white;
}

.audio-info {
  margin-bottom: var(--spacing-md);
}

.audio-title {
  font-size: var(--font-size-md);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.audio-author {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-sm);
}

.audio-description {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  line-height: 1.4;
  margin-bottom: var(--spacing-sm);
}

.audio-meta {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
  flex-wrap: wrap;
}

.audio-duration {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
}

.audio-free-badge {
  font-size: var(--font-size-xs);
  background: var(--primary-light);
  color: white;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
}

.audio-listen-btn {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--font-size-md);
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s ease;
}

.audio-listen-btn:active {
  background: var(--primary-dark);
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: var(--spacing-xl);
}

.empty-icon {
  font-size: 64px;
  margin-bottom: var(--spacing-md);
}

.empty-state h3 {
  font-size: var(--font-size-lg);
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

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

/* ==========================================
   AUDIO PLAYER PAGE
   ========================================== */

.free-audio-player-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
}

.audio-player {
  width: 100%;
  max-width: 500px;
  margin: 0 auto;
}

/* Player Cover */
.player-cover {
  width: 100%;
  aspect-ratio: 1;
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: var(--spacing-lg);
  box-shadow: var(--shadow-lg);
}

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

/* Player Info */
.player-info {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.player-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.player-author {
  font-size: var(--font-size-md);
  color: var(--text-secondary);
}

/* Progress Bar */
.player-progress {
  margin-bottom: var(--spacing-sm);
  position: relative;
}

.player-progress-track {
  height: 4px;
  background: var(--bg-secondary);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: var(--spacing-xs);
}

.player-progress-bar {
  height: 100%;
  background: var(--primary-color);
  transition: width 0.2s linear;
}

.player-seek-slider {
  width: 100%;
  height: 4px;
  -webkit-appearance: none;
  appearance: none;
  background: transparent;
  outline: none;
  cursor: pointer;
  position: absolute;
  top: 0;
  left: 0;
}

.player-seek-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  background: var(--primary-color);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.player-seek-slider::-moz-range-thumb {
  width: 16px;
  height: 16px;
  background: var(--primary-color);
  border-radius: 50%;
  cursor: pointer;
  border: none;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* Time Display */
.player-time {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--spacing-lg);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

/* Player Controls */
.player-controls {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.player-controls-center {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-lg);
}

.player-control-btn {
  width: 64px;
  height: 64px;
  border: none;
  border-radius: 50%;
  background: var(--bg-card);
  color: var(--text-primary);
  font-size: 24px;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.1s ease;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

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

.player-play-btn {
  width: 80px;
  height: 80px;
  background: var(--primary-color);
  color: white;
  font-size: 32px;
}

.player-play-btn.playing {
  background: var(--primary-dark);
}

.player-seek-label {
  font-size: var(--font-size-xs);
  font-weight: 600;
}

/* Playback Rate Control */
.player-rate-control {
  position: relative;
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

/* Inline rate control (in player controls row) - positioned on left */
.player-rate-control.inline {
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  margin: 0;
  z-index: 5;
}

.player-rate-btn {
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.1s ease;
  min-width: 44px;
  min-height: 44px;
}

/* Tighter padding for inline rate button in controls */
.player-controls .player-rate-btn {
  padding: var(--spacing-2xs) var(--spacing-sm);
  font-size: var(--font-size-sm);
  font-weight: 600;
}

.player-rate-btn:active {
  transform: scale(0.95);
  background: var(--bg-tertiary);
}

/* Compact rate menu for inline control */
.player-rate-control.inline .player-rate-menu {
  position: absolute;
  bottom: calc(100% + 6px);
  left: 0;
  transform: none;
  max-width: calc(100vw - 24px);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  display: flex;
  gap: var(--spacing-2xs);
  padding: var(--spacing-2xs);
  z-index: 10;
}

/* Default rate menu (non-inline) */
.player-rate-menu {
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  margin-bottom: var(--spacing-xs);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  display: flex;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs);
  z-index: 10;
}

.player-rate-menu .rate-option {
  min-width: 40px;
  padding: 4px 8px;
  font-size: var(--font-size-xs);
  font-weight: 600;
}

.rate-option {
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  min-width: 48px;
}

.rate-option:active {
  transform: scale(0.95);
}

.rate-option.active {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

/* Player Footer */
.player-footer {
  text-align: center;
}

.btn-back-to-list {
  padding: var(--spacing-sm) var(--spacing-lg);
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: background 0.2s ease;
}

.btn-back-to-list:active {
  background: var(--bg-tertiary);
}

/* Loading & Error States */
.loading-container,
.error-container {
  text-align: center;
  padding: var(--spacing-xl);
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--bg-secondary);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto var(--spacing-md);
}

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

.error-icon {
  font-size: 48px;
  margin-bottom: var(--spacing-md);
}

.error-container h3 {
  font-size: var(--font-size-lg);
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.error-container p {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
}

.btn-back {
  padding: var(--spacing-sm) var(--spacing-lg);
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  cursor: pointer;
}

/* Responsive adjustments */
@media (max-width: 360px) {
  .player-control-btn {
    width: 56px;
    height: 56px;
    font-size: 20px;
  }

  .player-play-btn {
    width: 72px;
    height: 72px;
    font-size: 28px;
  }

  .player-controls .player-rate-btn {
    padding: 2px 6px;
    font-size: var(--font-size-xs);
  }

  .player-rate-menu .rate-option {
    min-width: 36px;
    padding: 3px 6px;
    font-size: var(--font-size-xs);
  }
}

/* ==========================================
   TRACK LIST (PLAYLIST)
   ========================================== */

.track-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 12px;
  margin-bottom: var(--spacing-lg);
}

.track-item {
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: center;
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.track-item:hover {
  background: var(--bg-tertiary);
}

.track-item:active {
  transform: scale(0.95);
}

.track-item.active {
  border-color: var(--primary-color);
  color: var(--primary-color);
  background: rgba(var(--primary-color-rgb, 59, 130, 246), 0.1);
}

@media (max-width: 360px) {
  .track-list {
    grid-template-columns: repeat(2, 1fr);
  }
}