/* ============================================================
   WHATSAPP FAB — Botón flotante
   ============================================================ */

.whatsapp-fab {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 1000;
  width: 56px;
  height: 56px;
  background-color: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
  transition: transform var(--transition-base),
              box-shadow var(--transition-base),
              background-color var(--transition-base);
  text-decoration: none;
}

.whatsapp-fab:hover,
.whatsapp-fab:focus-visible {
  background-color: #1ebe57;
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.5);
}

.whatsapp-fab svg {
  flex-shrink: 0;
}

/* Ajuste en tablet */
@media (max-width: 1024px) {
  .whatsapp-fab {
    width: 52px;
    height: 52px;
    bottom: 1.25rem;
    right: 1.25rem;
  }

  .whatsapp-fab svg {
    width: 26px;
    height: 26px;
  }
}

/* Ajuste en mobile: un poco más pequeño para no tapar contenido */
@media (max-width: 768px) {
  .whatsapp-fab {
    width: 48px;
    height: 48px;
    bottom: 1rem;
    right: 1rem;
  }

  .whatsapp-fab svg {
    width: 24px;
    height: 24px;
  }
}

@media (max-width: 480px) {
  .whatsapp-fab {
    width: 44px;
    height: 44px;
    bottom: 0.75rem;
    right: 0.75rem;
  }

  .whatsapp-fab svg {
    width: 22px;
    height: 22px;
  }
}