/* ============================================================
   Component · Audio Player (Listening test, Speaking playback)
   ============================================================ */

.audio-player {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: var(--gio-space-4);
  padding: var(--gio-space-4) var(--gio-space-5);
  background: var(--gio-color-surface);
  border: 1px solid var(--gio-color-border);
  border-radius: var(--gio-radius-lg);
}
.audio-player__play {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--gio-color-action);
  color: var(--gio-color-text-on-action);
  border: 0;
  display: grid; place-items: center;
  cursor: pointer;
  flex-shrink: 0;
  font-size: 14px;
}
.audio-player__play:hover { background: var(--gio-color-action-hover); }
.audio-player__play:focus-visible { outline: none; box-shadow: var(--gio-focus-ring); }
.audio-player__time {
  font-family: var(--gio-font-mono);
  font-size: var(--gio-text-xs);
  color: var(--gio-color-text-muted);
  flex-shrink: 0;
}
.audio-player__track {
  flex: 1;
  height: 4px;
  background: var(--gio-color-bg-subtle);
  border-radius: var(--gio-radius-pill);
  position: relative;
  cursor: pointer;
}
.audio-player__track-fill {
  height: 100%;
  background: var(--gio-color-action);
  border-radius: inherit;
  width: 0%;
  transition: width 0.1s linear;
}
.audio-player__track-thumb {
  position: absolute;
  top: 50%;
  left: 0%;
  transform: translate(-50%, -50%);
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--gio-color-action);
  box-shadow: 0 0 0 4px var(--gio-color-surface), 0 1px 3px rgba(0,0,0,0.2);
}
.audio-player__meta {
  font-size: var(--gio-text-xs);
  color: var(--gio-color-text-muted);
  display: flex;
  flex-direction: column;
  gap: 2px;
}