.whatsapp-button {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background-color: #25D366;
  color: white;
  border-radius: 50%;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  box-shadow: 0 2px 10px rgba(0,0,0,0.3);
  z-index: 9999;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.whatsapp-button:hover {
  transform: scale(1.1);
  box-shadow: 0 4px 15px rgba(0,0,0,0.4);
}