.fab {
  position: fixed;
  right: var(--space-md);
  bottom: var(--space-md);
  z-index: var(--z-fab);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  background-color: var(--color-accent);
  color: var(--color-primary-dark);
  border-radius: var(--radius-pill);
  padding: 1rem;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-fast), background-color var(--transition-fast);
}

.fab::before {
  content: '';
  position: absolute;
  inset: -6px;
  border-radius: inherit;
  border: 2px solid var(--color-accent);
  opacity: 0.6;
  pointer-events: none;
  animation: fab-pulse 2.2s ease-out infinite;
}

@keyframes fab-pulse {
  0% {
    transform: scale(1);
    opacity: 0.6;
  }
  100% {
    transform: scale(1.3);
    opacity: 0;
  }
}

.fab:hover {
  background-color: var(--color-white);
  transform: translateY(-3px);
}

.fab:hover .fab__label {
  max-width: 160px;
  margin-left: var(--space-2xs);
}

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

.fab__label {
  display: inline-block;
  max-width: 0;
  overflow: hidden;
  white-space: nowrap;
  font-weight: 600;
  font-size: var(--fs-sm);
  transition: max-width var(--transition-base), margin-left var(--transition-base);
}

@media (prefers-reduced-motion: reduce) {
  .fab::before {
    animation: none;
    display: none;
  }
}

@media (max-width: 600px) {
  .fab__label {
    display: none;
  }
}