.audio-section {
  padding-top: 1rem;
  padding-bottom: 6rem;
}

.audio-player {
  max-width: 900px;
  margin: 0 auto;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 18px;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.015));
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
}

.player-main { padding: clamp(1.5rem, 4vw, 3rem); }
.now-playing-label {
  margin: 0 0 0.65rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  opacity: 0.65;
}

.track-title {
  margin: 0 0 2rem;
  font-family: "Montserrat", sans-serif;
  font-size: clamp(1.9rem, 5vw, 3.5rem);
  line-height: 1.12;
  font-weight: 300;
  letter-spacing: -0.035em;
}

.player-controls {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 1.5rem;
}

.control-button {
  display: inline-grid;
  place-items: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 50%;
  background: transparent;
  color: inherit;
  cursor: pointer;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease;
}

.control-button:hover,
.control-button:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(255, 255, 255, 0.6);
  background: rgba(255, 255, 255, 0.08);
}

.play-button {
  width: 58px;
  height: 58px;
  border-color: rgba(255, 255, 255, 0.75);
  background: rgba(255, 255, 255, 0.96);
  color: #111;
  font-size: 1.05rem;
}

.play-button:hover,
.play-button:focus-visible { background: #fff; }

.progress-area {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr) 48px;
  align-items: center;
  gap: 0.8rem;
}

.time {
  font-size: 0.76rem;
  font-variant-numeric: tabular-nums;
  opacity: 0.62;
}
.time:last-child { text-align: right; }

.progress,
.volume {
  --fill: 0%;
  width: 100%;
  height: 4px;
  appearance: none;
  -webkit-appearance: none;
  border: 0;
  border-radius: 999px;
  background: linear-gradient(to right, #fff 0%, #fff var(--fill), rgba(255, 255, 255, 0.22) var(--fill), rgba(255, 255, 255, 0.22) 100%);
  cursor: pointer;
}

.progress::-webkit-slider-thumb,
.volume::-webkit-slider-thumb {
  width: 14px;
  height: 14px;
  appearance: none;
  -webkit-appearance: none;
  border: 0;
  border-radius: 50%;
  background: #fff;
}

.progress::-moz-range-thumb,
.volume::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border: 0;
  border-radius: 50%;
  background: #fff;
}

.volume-row {
  display: grid;
  grid-template-columns: auto minmax(90px, 180px);
  align-items: center;
  gap: 0.8rem;
  margin-top: 1.25rem;
}

.volume-label {
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.62;
}

.playlist {
  margin: 0;
  padding: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  list-style: none;
}

.playlist-item + .playlist-item { border-top: 1px solid rgba(255, 255, 255, 0.08); }
.playlist-button {
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr) auto;
  align-items: center;
  gap: 1rem;
  width: 100%;
  padding: 1.15rem clamp(1.25rem, 4vw, 2.5rem);
  border: 0;
  background: transparent;
  color: inherit;
  text-align: left;
  cursor: pointer;
  transition: background 180ms ease;
}

.playlist-button:hover,
.playlist-button:focus-visible { background: rgba(255, 255, 255, 0.055); }
.playlist-button.is-active { background: rgba(255, 255, 255, 0.09); }
.track-number { font-size: 0.75rem; font-variant-numeric: tabular-nums; opacity: 0.55; }
.playlist-title { font-size: clamp(0.95rem, 2vw, 1.15rem); font-weight: 500; }
.playing-indicator { font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; opacity: 0; }
.playlist-button.is-active .playing-indicator { opacity: 0.7; }

@media (max-width: 600px) {
  .player-main { padding: 1.5rem; }
  .track-title { font-size: clamp(1.8rem, 8vw, 2.6rem); }
  .progress-area { grid-template-columns: 42px minmax(0, 1fr) 42px; gap: 0.5rem; }
  .playlist-button { grid-template-columns: 1.6rem minmax(0, 1fr); }
  .playing-indicator { display: none; }
}