/*--------------------------------------------------------------
# Music Player (Backsound)
--------------------------------------------------------------
Panel mini pemutar musik latar: tombol floating (FAB) + panel kontrol.
Panel dibuka/ditutup lewat #music-fab dan otomatis tertutup saat klik
di luar area. Tombol #music-fab menampilkan equalizer yang beranimasi
hanya ketika musik sedang diputar.
--------------------------------------------------------------*/
.music-player {
  position: fixed;
  right: 15px;
  bottom: 70px; /* di atas tombol scroll-top */
  z-index: 99998;
  font-family: inherit;
}

/* Tombol floating utama */
.music-fab {
  position: relative;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 50px;
  background-color: var(--accent-color);
  color: var(--contrast-color);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  padding: 0;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18);
  transition: transform 0.3s ease, background-color 0.3s ease;
}

.music-fab i {
  font-size: 20px;
  line-height: 0;
  position: relative;
  z-index: 1;
}

.music-fab:hover {
  transform: translateY(-3px);
  background-color: color-mix(in srgb, var(--accent-color), transparent 15%);
}

.music-fab__equalizer {
  position: absolute;
  left: 50%;
  bottom: 50%;
  width: 24px;
  height: 20px;
  display: none;
  align-items: flex-end;
  justify-content: center;
  gap: 3px;
  padding: 0;
  transform: translate(-50%, 50%);
  pointer-events: none;
}

.music-fab__equalizer i {
  display: block;
  width: 4px;
  height: 8px;
  border-radius: 4px;
  background-color: var(--contrast-color);
  animation: music-eq 0.9s ease-in-out infinite;
}

.music-fab__equalizer i:nth-child(2) { animation-delay: 0.15s; }
.music-fab__equalizer i:nth-child(3) { animation-delay: 0.3s; }

/* Saat musik diputar: ikon nada diganti equalizer, bukan ditumpuk */
.music-player.is-playing .music-fab > i {
  display: none;
}
.music-player.is-playing .music-fab__equalizer {
  display: flex;
}

.music-player.is-playing .music-fab::after {
  content: '';
  position: absolute;
  inset: 7px;
  border: 1px solid color-mix(in srgb, var(--contrast-color), transparent 65%);
  border-radius: 50%;
  pointer-events: none;
}

@keyframes music-eq {
  0%, 100% { height: 7px; opacity: .72; }
  50%      { height: 19px; opacity: 1; }
}

/* Panel kontrol */
.music-panel {
  position: absolute;
  right: 0;
  bottom: 56px;
  width: 250px;
  padding: 12px;
  border-radius: 14px;
  background-color: #ffffff;
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.22);
  border: 1px solid rgba(15, 23, 42, 0.06);
  transform-origin: bottom right;
  animation: music-pop 0.22s ease;
}

.music-panel[hidden] {
  display: none;
}

@keyframes music-pop {
  from { opacity: 0; transform: scale(0.9) translateY(6px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.music-panel__header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
}

.music-panel__now {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.music-panel__title {
  font-size: 0.82rem;
  font-weight: 600;
  color: #0f172a;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.music-panel__artist {
  font-size: 0.72rem;
  color: #64748b;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.music-panel__toggle {
  flex: 0 0 auto;
  width: 32px;
  height: 32px;
  border: 0;
  border-radius: 50%;
  background-color: var(--accent-color);
  color: var(--contrast-color);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: opacity 0.2s ease;
}

.music-panel__toggle:hover {
  opacity: 0.85;
}

.music-panel__toggle i {
  font-size: 18px;
  line-height: 0;
}

/* Equalizer kecil di header panel */
.music-equalizer {
  display: flex;
  align-items: flex-end;
  gap: 2px;
  height: 18px;
}

.music-equalizer i {
  display: block;
  width: 3px;
  height: 4px;
  border-radius: 2px;
  background-color: var(--accent-color);
  opacity: 0.35;
}

.music-player.is-playing .music-equalizer i {
  opacity: 1;
  animation: music-eq 0.9s ease-in-out infinite;
}

.music-player.is-playing .music-equalizer i:nth-child(2) { animation-delay: 0.15s; }
.music-player.is-playing .music-equalizer i:nth-child(3) { animation-delay: 0.3s; }
.music-player.is-playing .music-equalizer i:nth-child(4) { animation-delay: 0.45s; }

.music-panel__controls {
  display: flex;
  align-items: center;
  gap: 4px;
  padding-top: 10px;
}

.music-btn {
  width: 30px;
  height: 30px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: #334155;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.music-btn:hover {
  background-color: rgba(15, 23, 42, 0.06);
  color: var(--accent-color);
}

.music-btn i {
  font-size: 16px;
  line-height: 0;
}

.music-btn.is-muted {
  color: #ef4444;
}

.music-volume {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 4px;
  min-width: 0;
}

.music-volume__range {
  flex: 1;
  min-width: 0;
  height: 4px;
  cursor: pointer;
  accent-color: var(--accent-color);
}

/* Dialog undangan musik: tidak menghalangi halaman dan tetap ringan di mobile. */
.music-invite[hidden] { display: none; }
.music-invite {
  position: fixed;
  inset: 0;
  z-index: 100000;
  display: grid;
  place-items: center;
  padding: 20px;
}
.music-invite__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, .38);
  backdrop-filter: blur(3px);
}
.music-invite__card {
  position: relative;
  width: min(440px, 100%);
  overflow: hidden;
  border-radius: 20px;
  background: #fff;
  box-shadow: 0 24px 70px rgba(15, 23, 42, .28);
  animation: music-invite-pop .28s ease-out;
}
.music-invite__body { padding: 26px; text-align: center; }
.music-invite__bubble { display: grid; place-items: center; margin: 4px auto 14px; width: 58px; height: 58px; border-radius: 50%; background: color-mix(in srgb, var(--accent-color), white 84%); color: var(--accent-color); font-size: 27px; }
.music-invite__eyebrow { margin: 0 0 8px; color: var(--accent-color); font-size: .78rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; }
.music-invite__title { margin: 0 0 10px; font-size: 1.35rem; }
.music-invite__desc { margin: 0; color: #64748b; line-height: 1.6; }
.music-invite__hint { display: block; margin-top: 4px; font-size: .82rem; }
.music-invite__actions { display: flex; gap: 10px; justify-content: center; margin-top: 22px; }
.music-invite__btn { border: 0; border-radius: 10px; padding: 10px 14px; font-weight: 600; cursor: pointer; }
.music-invite__btn--yes { background: var(--accent-color); color: var(--contrast-color); }
.music-invite__btn--no { background: #eef2f7; color: #334155; }
.music-invite__foot { margin: 16px 0 0; color: #94a3b8; font-size: .75rem; }
@keyframes music-invite-pop { from { opacity: 0; transform: translateY(10px) scale(.97); } to { opacity: 1; transform: translateY(0) scale(1); } }

/* Penyesuaian kecil di layar sempit */
@media (max-width: 575.98px) {
  .music-player {
    right: 12px;
    bottom: 64px;
  }

  .music-panel {
    width: 220px;
  }
  .music-invite__body { padding: 22px 18px; }
  .music-invite__actions { flex-direction: column; }
}

/* Hormati preferensi pengguna yang mengurangi animasi */
@media (prefers-reduced-motion: reduce) {
  .music-player.is-playing .music-equalizer i,
  .music-player.is-playing .music-fab__equalizer i {
    animation: none;
  }

  .music-panel {
    animation: none;
  }
}