.music-toggle {
  position: fixed;
  right: clamp(1rem, 2.5vw, 2rem);
  bottom: clamp(1rem, 2.5vw, 2rem);
  z-index: 20;
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  min-height: 2.75rem;
  padding: 0.55rem 0.9rem 0.55rem 0.6rem;
  border: 1px solid rgba(188, 255, 0, 0.42);
  border-radius: 999px;
  background: rgba(6, 16, 15, 0.86);
  color: #e9eee4;
  font: 500 0.65rem/1 "DM Mono", monospace;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  box-shadow: 0 0 0 1px rgba(6, 16, 15, 0.35), 0 10px 35px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(12px);
  transition: border-color 180ms ease, color 180ms ease, transform 180ms ease;
}

.music-toggle:hover {
  border-color: #bcff00;
  color: #bcff00;
  transform: translateY(-2px);
}

.music-toggle:focus-visible {
  outline: 2px solid #bcff00;
  outline-offset: 3px;
}

.music-toggle__icon {
  display: grid;
  place-items: center;
  width: 1.65rem;
  height: 1.65rem;
  border-radius: 50%;
  background: #bcff00;
  color: #06100f;
  font-size: 1rem;
}

.music-toggle[aria-pressed="true"] .music-toggle__icon {
  animation: music-pulse 1.8s ease-in-out infinite;
}

@keyframes music-pulse {
  50% { box-shadow: 0 0 0 6px rgba(188, 255, 0, 0.12); }
}

@media (max-width: 520px) {
  .music-toggle__label { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  .music-toggle { padding: 0.55rem; }
}

@media (prefers-reduced-motion: reduce) {
  .music-toggle,
  .music-toggle__icon { animation: none !important; transition: none; }
}