.whatsapp-float {
  position: fixed;
  bottom: 25px;
  right: 25px;
  background-color: #25D366;
  color: #fff;
  border-radius: 50px;
  padding: 12px 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  box-shadow: 0 4px 12px rgba(0,0,0,0.25);
  z-index: 999;
  transition: transform 0.2s ease-in-out, background-color 0.2s;
}

.whatsapp-float i {
  font-size: 22px;
  line-height: 1;
}
.whatsapp-float:hover {
  transform: scale(1.07);
  background-color: #1ebe5b;
}

/* Efeito de PULSO */
.whatsapp-float::after {
  content: "";
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  border-radius: 50px;
  animation: pulsar 1.8s ease-out infinite;
  border: 2px solid rgba(37, 211, 102, 0.5);
}

@keyframes pulsar {
  0% { transform: scale(1); opacity: 0.7; }
  100% { transform: scale(1.6); opacity: 0; }
}

/* Opcional: ocultar o texto no mobile e deixar circular */
@media (max-width: 480px) {
  .whatsapp-float {
    padding: 14px;
    border-radius: 50%;
  }
  .whatsapp-float span {
    display: none;
  }
  .whatsapp-float::after {
    border-radius: 50%;
  }
}