/* ============================================================
   player.css — bottom-right single-track music player
   ============================================================ */

.player {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 90;
  display: flex;
  align-items: center;
  font-family: var(--font-body);
}

/* ── Toggle button ──────────────────────────────────────── */
.player__toggle {
  position: relative;
  z-index: 2;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  color: var(--text-muted);
  background: rgba(16, 18, 21, 0.9);
  backdrop-filter: blur(12px) saturate(150%);
  -webkit-backdrop-filter: blur(12px) saturate(150%);
  border: 1px solid var(--line-strong);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.45);
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease),
              transform 0.25s var(--ease);
}
.player__toggle:hover {
  color: var(--text);
  border-color: #3b424d;
  transform: translateY(-2px);
}

.player__toggle[aria-expanded="true"] {
  color: var(--accent);
  border-color: rgba(77, 141, 255, 0.4);
}

/* subtle pulse while playing */
.player.is-playing .player__toggle::after {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: 50%;
  border: 1px solid rgba(77, 141, 255, 0.35);
  animation: playerPulse 2.8s var(--ease) infinite;
  pointer-events: none;
}

@keyframes playerPulse {
  0%   { transform: scale(1);    opacity: 0.7; }
  70%  { transform: scale(1.28); opacity: 0; }
  100% { transform: scale(1.28); opacity: 0; }
}

/* ── Panel ──────────────────────────────────────────────── */
.player__panel {
  display: flex;
  align-items: center;
  gap: 16px;
  height: 46px;
  margin-right: -58px;
  padding: 0 62px 0 18px;
  background: rgba(16, 18, 21, 0.94);
  backdrop-filter: blur(14px) saturate(160%);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  border: 1px solid var(--line-strong);
  border-radius: 100px;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5);

  opacity: 0;
  visibility: hidden;
  transform: translateX(24px) scale(0.96);
  transform-origin: right center;
  transition: opacity 0.34s var(--ease),
              transform 0.4s var(--ease),
              visibility 0.34s var(--ease);
}

.player.is-open .player__panel {
  opacity: 1;
  visibility: visible;
  transform: translateX(0) scale(1);
}

/* ── Meta ───────────────────────────────────────────────── */
.player__meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
  max-width: 190px;
  overflow: hidden;
}

.player__title {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text);
  line-height: 1.3;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.player__sub {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--accent);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ── Controls ───────────────────────────────────────────── */
.player__controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

.player__btn--skip {
  width: 28px;
  height: 28px;
  background: transparent;
  border-color: transparent;
  color: var(--text-muted);
}
.player__btn--skip:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  border-color: transparent;
}

.player__btn {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--line);
  transition: background 0.22s var(--ease), color 0.22s var(--ease),
              border-color 0.22s var(--ease), transform 0.22s var(--ease);
}
.player__btn:hover {
  background: rgba(255, 255, 255, 0.09);
  border-color: var(--line-strong);
}
.player__btn:active { transform: scale(0.94); }

#playBtn {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
#playBtn:hover {
  background: #5f9bff;
  border-color: #5f9bff;
}

/* play / pause icon swap */
.player__icon-pause { display: none; }
.player.is-playing .player__icon-play  { display: none; }
.player.is-playing .player__icon-pause { display: block; }

/* mute icon swap */
.player__icon-muted { display: none; }
.player.is-muted .player__icon-vol   { display: none; }
.player.is-muted .player__icon-muted { display: block; }
.player.is-muted .player__wave { opacity: 0; }

.player__wave {
  transition: opacity 0.22s var(--ease);
}

.player__btn--sm {
  width: 26px;
  height: 26px;
  background: transparent;
  border-color: transparent;
  color: var(--text-muted);
}
.player__btn--sm:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
}

/* ── Volume slider ──────────────────────────────────────── */
.player__volume {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-left: 4px;
}

.player__slider {
  -webkit-appearance: none;
  appearance: none;
  width: 74px;
  height: 3px;
  border-radius: 100px;
  background: var(--line-strong);
  cursor: pointer;
  outline: none;
}

.player__slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--text);
  border: none;
  transition: transform 0.2s var(--ease), background 0.2s var(--ease);
}
.player__slider:hover::-webkit-slider-thumb { transform: scale(1.18); }
.player__slider:active::-webkit-slider-thumb {
  background: var(--accent);
  transform: scale(1.18);
}

.player__slider::-moz-range-thumb {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--text);
  border: none;
  cursor: pointer;
}
.player__slider::-moz-range-track {
  height: 3px;
  border-radius: 100px;
  background: var(--line-strong);
}

/* ── Responsive ─────────────────────────────────────────── */
@media (max-width: 640px) {
  .player {
    right: 16px;
    bottom: 16px;
  }

  .player__panel {
    position: fixed;
    left: 16px;
    right: 16px;
    bottom: 74px;
    height: auto;
    margin-right: 0;
    padding: 14px 18px;
    border-radius: var(--r-lg);
    justify-content: space-between;
    transform: translateY(12px) scale(0.98);
    transform-origin: bottom right;
  }

  .player.is-open .player__panel { transform: translateY(0) scale(1); }

  .player__meta { max-width: 130px; }
  .player__slider { width: 60px; }
}

@media (prefers-reduced-motion: reduce) {
  .player.is-playing .player__toggle::after { animation: none; }
}