/* Accent Tap audio player — waveform, transport, track list.
   Themed with the site tokens; override --atp-accent per page
   (e.g. gold on the Pitched Percussion page). */

.atp-container {
  --atp-accent: var(--violet, #8b5cf6);
  --atp-accent-hover: color-mix(in srgb, var(--atp-accent) 80%, #ffffff);
  --atp-wave-dim: var(--text-dim, #9a9aad);

  background: var(--bg-card, #171721);
  border: 1px solid var(--border, #262633);
  border-radius: var(--radius, 14px);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* ---------- transport row ---------- */

.atp-player {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 1.1rem 1.3rem;
  border-bottom: 1px solid var(--border, #262633);
  background: var(--bg-raised, #14141c);
}

.atp-btn-play {
  width: 48px;
  height: 48px;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--atp-accent);
  color: var(--bg, #0b0b10);
  flex-shrink: 0;
  transition: background 0.2s, transform 0.15s;
}

.atp-btn-play:hover {
  background: var(--atp-accent-hover);
  transform: scale(1.05);
}

.atp-btn-restart {
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--text-dim, #9a9aad);
  flex-shrink: 0;
  transition: color 0.2s, background 0.2s;
}

.atp-btn-restart:hover {
  color: var(--text, #f2f2f7);
  background: var(--bg-card, #171721);
}

.atp-waveform {
  flex: 1;
  height: 60px;
  position: relative;
  cursor: pointer;
  min-width: 0;
}

.atp-waveform-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.atp-time {
  font-size: 0.78rem;
  color: var(--text-dim, #9a9aad);
  font-variant-numeric: tabular-nums;
  flex-shrink: 0;
}

/* ---------- volume ---------- */

.atp-volume {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.atp-volume-btn {
  background: none;
  border: none;
  padding: 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
  color: var(--text-dim, #9a9aad);
  transition: color 0.15s;
}

.atp-volume-btn:hover {
  color: var(--atp-accent);
}

.atp-volume-slider {
  width: 80px;
  height: 24px;
  cursor: pointer;
  position: relative;
  display: flex;
  align-items: center;
  user-select: none;
  -webkit-user-select: none;
}

.atp-volume-track {
  width: 100%;
  height: 4px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 2px;
  position: relative;
}

.atp-volume-fill {
  height: 100%;
  background: var(--atp-accent);
  border-radius: 2px;
  width: 100%;
  pointer-events: none;
}

.atp-volume-handle {
  position: absolute;
  top: 50%;
  left: 100%;
  width: 12px;
  height: 12px;
  background: var(--atp-accent);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  opacity: 0;
  transition: opacity 0.15s;
  pointer-events: none;
}

.atp-volume-slider:hover .atp-volume-handle,
.atp-volume-slider.dragging .atp-volume-handle {
  opacity: 1;
}

.atp-volume-slider.dragging {
  cursor: grabbing;
}

/* ---------- track list ---------- */

.atp-track-list {
  max-height: 320px;
  overflow-y: auto;
}

.atp-track {
  display: flex;
  align-items: center;
  padding: 0.7rem 1.3rem;
  cursor: pointer;
  transition: background 0.15s;
  border-bottom: 1px solid var(--border, #262633);
}

.atp-track:last-child {
  border-bottom: none;
}

.atp-track:hover {
  background: var(--bg-raised, #14141c);
}

.atp-track.playing {
  background: var(--bg-raised, #14141c);
  border-left: 3px solid var(--atp-accent);
  padding-left: calc(1.3rem - 3px);
}

.atp-track.playing .atp-track-title {
  color: var(--atp-accent);
  font-weight: 700;
}

.atp-track-title {
  flex: 1;
  font-size: 0.9rem;
  color: var(--text, #f2f2f7);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.atp-track-subtitle {
  color: var(--text-dim, #9a9aad);
  margin-left: 0.6rem;
  font-weight: 400;
  font-size: 0.8rem;
}

.atp-track-duration {
  font-size: 0.8rem;
  color: var(--text-dim, #9a9aad);
  margin-left: 1rem;
  flex-shrink: 0;
  font-variant-numeric: tabular-nums;
}

.atp-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2.5rem;
  color: var(--text-dim, #9a9aad);
}

/* ---------- mobile ---------- */

@media (max-width: 640px) {
  .atp-player {
    flex-wrap: wrap;
    gap: 0.7rem;
    padding: 0.9rem 1rem;
  }

  .atp-waveform {
    order: 5;
    flex-basis: 100%;
    height: 48px;
  }

  .atp-time {
    margin-left: auto;
  }

  .atp-volume-slider {
    width: 64px;
  }

  .atp-track {
    padding: 0.65rem 1rem;
  }

  .atp-track.playing {
    padding-left: calc(1rem - 3px);
  }
}