.whatsapp-button {
  position: fixed;
  bottom: 20px;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  box-shadow: 0 4px 10px rgba(0,0,0,0.2);
  cursor: pointer;
  animation: pulse 2s infinite;
  transition: transform 0.3s ease;
}

.whatsapp-button:hover {
  transform: scale(1.1);
}

.whatsapp-button img {
  width: 70%;
  height: 70%;
  display: block;
  filter: brightness(0) invert(1); /* deixa branco */
}



@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

.whatsapp-right {
  right: 20px;
}
.whatsapp-left {
  left: 20px;
}