/* FAB — Floating Action Button (mobile-only) */

.fab {
  display: none;
  position: fixed;
  right: 20px;
  bottom: calc(var(--bottom-nav-h) + var(--safe-area-bottom) + 16px);
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--grad-accent);
  border: none;
  color: #000;
  font-size: 24px;
  z-index: 250;
  box-shadow: 0 0 0 1px var(--neon-cyan-dim), 0 4px 16px rgba(0, 255, 255, 0.25);
  align-items: center;
  justify-content: center;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: transform 0.15s var(--ease-out), box-shadow 0.15s var(--ease-out);
}

@media (max-width: 768px) {
  .fab {
    display: flex;
  }
}

.fab:active {
  transform: scale(0.92);
}

.fab__icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

/* Variant: positioned above a music mini-player */
.fab--above-player {
  bottom: calc(var(--bottom-nav-h) + var(--safe-area-bottom) + 16px + 56px);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .fab {
    transition: none;
  }
}