/* Botón flotante WhatsApp - sin fondo */
.whatsapp-fab {
  position: fixed;
  right: 25px;
  bottom: 25px;
  z-index: 9999;
  transition: transform 0.2s ease, opacity 0.3s ease;
  opacity: 0.9;
}

.whatsapp-fab:hover {
  transform: scale(1.1);
  opacity: 1;
}

.whatsapp-fab img {
  width: 55px;
  height: 55px;
  filter: drop-shadow(0 0 6px rgba(0, 0, 0, 0.5));
}