.audio-player {
  width: 100%;
  display: grid;
  gap: 14px;
}

.audio-player-card {
  align-content: start;
  gap: 16px;
  background:
    radial-gradient(circle at 14% 0%, color-mix(in srgb, var(--accent-audiobook) 14%, transparent), transparent 34%),
    linear-gradient(180deg, color-mix(in srgb, var(--card) 96%, #fff), var(--card));
}

.audio-now-playing {
  display: flex;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
}

.audio-now-playing h3 {
  margin: 4px 0;
  font-size: clamp(22px, 3vw, 34px);
}

.audio-now-playing p {
  margin: 0;
}

.audio-play-hero {
  width: 92px;
  aspect-ratio: 1;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--accent-audiobook) 34%, var(--border));
  background:
    radial-gradient(circle at 35% 25%, rgba(255,255,255,0.34), transparent 42%),
    color-mix(in srgb, var(--accent-audiobook) 82%, var(--accent-primary));
  color: #fff;
  font-weight: 800;
  box-shadow: 0 18px 44px color-mix(in srgb, var(--accent-audiobook) 26%, transparent);
  cursor: pointer;
  transition: transform 150ms ease, box-shadow 150ms ease;
}

.audio-play-hero:hover,
.audio-play-hero:focus-visible {
  transform: translateY(-1px) scale(1.02);
  box-shadow: 0 22px 54px color-mix(in srgb, var(--accent-audiobook) 34%, transparent);
}

.audio-play-hero:active {
  transform: scale(0.975);
}

.audio-play-hero.is-playing {
  animation: audioPulse 1.8s ease-in-out infinite;
}

.audio-is-playing .audio-progress-bar span {
  box-shadow: 0 0 18px color-mix(in srgb, var(--accent-audiobook) 36%, transparent);
}

.audio-progress-shell {
  padding: 4px 0;
}

.audio-progress-bar {
  height: 8px;
  overflow: hidden;
  border-radius: 999px;
  background: color-mix(in srgb, var(--muted) 15%, var(--card));
}

.audio-progress-bar span {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent-audiobook), color-mix(in srgb, var(--accent-gold) 72%, var(--accent-audiobook)));
  transition: width 220ms linear;
}

@keyframes audioPulse {
  0%, 100% {
    box-shadow: 0 18px 44px color-mix(in srgb, var(--accent-audiobook) 24%, transparent);
  }
  50% {
    box-shadow: 0 18px 54px color-mix(in srgb, var(--accent-audiobook) 42%, transparent);
  }
}

.audio-tools-panel .card {
  min-width: 0;
}

.audio-player,
audio.audio-player {
  accent-color: var(--accent-audiobook);
}

.control-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

.control-row label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--muted);
  padding: 7px 9px;
  border: 1px solid color-mix(in srgb, var(--accent-audiobook) 16%, var(--border));
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--card) 72%, transparent);
}

select {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--card) 88%, #fff);
  padding: 8px 10px;
  font-size: 13px;
  color: var(--ink);
  min-height: 38px;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.metric {
  padding: 14px;
  border-radius: var(--radius);
  border: 1px solid color-mix(in srgb, var(--accent-audiobook) 16%, var(--border));
  background: linear-gradient(180deg, color-mix(in srgb, var(--card) 92%, #fff), var(--card));
  box-shadow: var(--shadow-soft);
}

.metric h4 {
  margin: 0 0 6px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: color-mix(in srgb, var(--accent-audiobook) 70%, var(--muted));
}

.metric p {
  margin: 0;
  color: var(--ink);
}

.audio-clarify-modal {
  width: min(440px, calc(100vw - 24px));
  border-color: color-mix(in srgb, var(--accent-audiobook) 20%, var(--border));
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--card) 96%, #fff), color-mix(in srgb, var(--panel) 94%, #fff));
  box-shadow: 0 24px 62px color-mix(in srgb, var(--accent-audiobook) 18%, rgba(17, 24, 39, 0.22));
  backdrop-filter: blur(10px);
  transition: opacity 180ms ease, transform 180ms cubic-bezier(.2,.7,.2,1);
}

audio.audio-player {
  min-height: 44px;
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--card) 84%, #fff);
  box-shadow: var(--shadow-soft);
  opacity: 0.88;
}

@media (min-width: 1280px) {
  .audio-immersive .route-audiobook .surface-layout {
    grid-template-columns: minmax(420px, 0.85fr) minmax(420px, 1.15fr);
  }

  .audio-immersive .route-audiobook .audio-player-card {
    min-height: min(460px, calc(100dvh - 190px));
    align-content: center;
  }

  .audio-immersive .route-audiobook .surface-side {
    opacity: 0.42;
    transition: opacity 160ms ease;
  }

  .audio-immersive .route-audiobook .surface-side:hover,
  .audio-immersive .route-audiobook .surface-side:focus-within {
    opacity: 1;
  }

  audio.audio-player {
    min-height: 54px;
  }

  .audio-player-card {
    gap: 18px;
  }
}

.reader-memory-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}

@media (min-width: 921px) {
  .audio-clarify-modal {
    left: auto;
    right: 12px;
    top: 12px;
    bottom: 12px;
    width: min(420px, calc(100vw - 24px));
    max-height: none;
    transform: translateX(16px);
  }

  .audio-clarify-modal.open {
    transform: translateX(0);
  }
}

@media (max-width: 640px) {
  audio.audio-player {
    min-height: 52px;
  }

  .audio-now-playing {
    display: grid;
  }

  .audio-play-hero {
    width: 100%;
    aspect-ratio: auto;
    min-height: 54px;
  }

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

  .control-row {
    display: grid;
    grid-template-columns: 1fr;
    align-items: stretch;
  }

  .audio-player-card .control-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .control-row .chip,
  .control-row .btn,
  .control-row label {
    width: 100%;
    justify-content: space-between;
    min-height: 48px;
  }

  .audio-player-card .control-row label,
  .audio-player-card .control-row .chip,
  .audio-player-card .control-row .btn {
    min-height: 44px;
  }

  .control-row select {
    min-width: 128px;
  }

  .audio-clarify-modal {
    left: 0;
    right: 0;
    bottom: 0;
    top: auto;
    width: auto;
    max-height: min(82dvh, 760px);
    border-radius: 14px 14px 0 0;
    padding-bottom: calc(18px + env(safe-area-inset-bottom));
    transform: translateY(18px);
  }

  .audio-clarify-modal.open {
    transform: translateY(0);
  }

  .audio-clarify-modal .actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }

  .audio-clarify-modal .actions .btn,
  .audio-clarify-modal .actions .chip {
    width: 100%;
  }
}

@media (max-width: 460px) {
  .audio-clarify-modal .actions {
    grid-template-columns: 1fr;
  }
}