@keyframes shake {
  0% { transform: translateX(0); }
  25% { transform: translateX(-5px); }
  50% { transform: translateX(5px); }
  75% { transform: translateX(-5px); }
  100% { transform: translateX(0); }
}

#custom-whatsapp-button {
  position: fixed;
  bottom: 20px; /* مكان الزر في الأسفل */
  right: 20px;
  background-color: #25D366;
  border-radius: 50%;
  padding: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
  z-index: 9999;
  transition: transform 0.3s;
  animation: shake 2s infinite;
}

#custom-whatsapp-button:hover {
  transform: scale(1.2);
  animation: none;
}