.track-indicators {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}
.track-indicator {
  display: inline-grid;
  place-items: center;
  flex: none;
  width: 30px;
  height: 30px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.32);
  border-top-color: rgba(255, 255, 255, 0.55);
  border-radius: 8px;
  background: linear-gradient(155deg, rgba(255, 255, 255, 0.25), rgba(255, 255, 255, 0.03) 55%, rgba(0, 0, 0, 0.08)), var(--indicator-tint, rgba(108, 111, 198, 0.3));
  color: #fff;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2), inset 0 -1px 0 rgba(0, 0, 0, 0.1), 0 2px 6px rgba(0, 0, 0, 0.15);
  backdrop-filter: blur(12px) saturate(160%);
  -webkit-backdrop-filter: blur(12px) saturate(160%);
  font: 700 12px/1 system-ui, sans-serif;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.45);
  text-transform: none;
  letter-spacing: 0;
  transition: border-color 0.2s ease, filter 0.2s ease;
}
button.track-indicator { cursor: pointer; }
button.track-indicator:hover { filter: brightness(1.15); border-color: rgba(255, 255, 255, 0.7); }
button.track-indicator:focus-visible { outline: 2px solid #fff; outline-offset: 2px; }
.track-indicator-tooltip {
  position: fixed;
  z-index: 10000;
  width: max-content;
  max-width: min(320px, calc(100vw - 16px));
  padding: 10px 12px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  color: #fff;
  background: rgba(23, 24, 38, 0.88);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  font: 400 14px/1.4 system-ui, sans-serif;
  text-transform: none;
  overflow-wrap: anywhere;
}
.track-indicator-tooltip[hidden] { display: none; }