.background-player {
  position: fixed;
  z-index: 60;
  left: 18px;
  bottom: 18px;
  display: grid;
  grid-template-columns: auto minmax(180px, 1fr) auto;
  align-items: center;
  gap: 13px;
  width: min(470px, calc(100% - 36px));
  padding: 14px 15px;
  border: 1px solid rgba(101,231,255,.42);
  border-radius: 13px;
  color: #eef8ff;
  background: linear-gradient(125deg,rgba(7,18,31,.96),rgba(17,38,57,.96));
  box-shadow: 0 18px 55px rgba(0,0,0,.48), 0 0 28px rgba(101,231,255,.13);
  backdrop-filter: blur(16px);
}
.background-player__pulse { width: 13px; height: 34px; border-radius: 4px; background: repeating-linear-gradient(180deg,#65e7ff 0 3px,transparent 3px 6px); box-shadow: 9px 7px 0 -2px rgba(101,231,255,.7),18px -3px 0 -3px rgba(101,231,255,.52); animation: background-meter 1.1s ease-in-out infinite alternate; }
.background-player.is-paused .background-player__pulse { opacity: .38; animation-play-state: paused; }
.background-player__copy { min-width: 0; padding-left: 15px; }
.background-player__copy span { display: block; color: #e2bd79; font-size: .62rem; font-weight: 850; letter-spacing: .14em; text-transform: uppercase; }
.background-player__copy strong { display: block; overflow: hidden; margin-top: 2px; font-size: .94rem; text-overflow: ellipsis; white-space: nowrap; }
.background-player__copy small { display: block; overflow: hidden; margin-top: 2px; color: #9fb4c5; font-size: .72rem; text-overflow: ellipsis; white-space: nowrap; }
.background-player button { min-height: 42px; padding: 0 14px; border: 1px solid #65e7ff; border-radius: 7px; color: #03101a; background: #65e7ff; font: inherit; font-size: .78rem; font-weight: 850; cursor: pointer; }
.background-player button:hover { background: #9bf0ff; }
.background-player button:focus-visible { outline: 3px solid #fff; outline-offset: 3px; }
.background-player audio { display: none; }
.track-seeker {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  width: 100%;
  margin-top: 9px;
  padding: 7px 10px;
  border: 1px solid rgba(101,231,255,.22);
  border-radius: 8px;
  background: rgba(3,13,22,.55);
}
.track-seeker__bar {
  --seek-progress: 0%;
  position: relative;
  width: 100%;
  min-width: 0;
  height: 28px;
  margin: 0;
  padding: 0;
  overflow: hidden;
  border: 0;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(101,231,255,.24), rgba(255,255,255,.11));
  cursor: pointer;
}
.track-seeker__bar::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: var(--seek-progress);
  background: linear-gradient(90deg, #2aa7d4, #65e7ff);
}
.track-seeker__bar::after {
  content: "";
  position: absolute;
  top: 50%;
  left: var(--seek-progress);
  width: 12px;
  height: 12px;
  border: 2px solid #04101a;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 0 0 2px #65e7ff;
  transform: translate(-50%, -50%);
}
.track-seeker__bar:disabled { cursor: wait; opacity: .48; }
.track-seeker__bar.is-loading { cursor: wait; opacity: .68; }
.track-seeker__bar:focus-visible { outline: 3px solid #65e7ff; outline-offset: 3px; }
.track-seeker__time {
  min-width: 82px;
  color: #b9cbd8;
  font-size: .72rem;
  font-variant-numeric: tabular-nums;
  text-align: right;
  white-space: nowrap;
}
@keyframes background-meter { to { transform: scaleY(.64); filter: brightness(1.35); } }
@media (max-width: 620px) { .background-player { right: 10px; bottom: 10px; left: 10px; width: auto; grid-template-columns: auto minmax(0,1fr) auto; } .background-player__copy { padding-left: 9px; } .background-player button { padding: 0 10px; font-size: .72rem; } .track-seeker { grid-template-columns: 1fr; gap: 2px; } .track-seeker__time { text-align: left; } }
@media (prefers-reduced-motion: reduce) { .background-player__pulse { animation: none; } }