whatsapp-float {
  position: fixed;
  right: var(--space-5);
  bottom: var(--space-5);
  z-index: var(--z-float);
}

.wa-float {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: var(--color-whatsapp);
  color: #fff;
  box-shadow: var(--shadow-lg);
  animation: wa-pulse 2.6s ease-in-out infinite;
}

.wa-float svg {
  width: 28px;
  height: 28px;
}

.wa-float:hover {
  background: var(--color-whatsapp-dark);
}

@keyframes wa-pulse {
  0%, 100% { box-shadow: var(--shadow-lg), 0 0 0 0 rgba(30, 190, 93, 0.4); }
  50% { box-shadow: var(--shadow-lg), 0 0 0 10px rgba(30, 190, 93, 0); }
}

@media (prefers-reduced-motion: reduce) {
  .wa-float {
    animation: none;
  }
}