.fixed-contact-buttons {
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.contact-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  text-decoration: none;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
  transition: all 0.3s ease;
  color: white;
}

.contact-btn i {
  font-size: 24px;
}

.contact-btn:hover {
  transform: translateY(-3px) scale(1.1);
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.4);
  color: white;
  text-decoration: none;
}

/* Màu sắc cho từng nút */
.phone-btn {
  background-color: #25D366;
}

.facebook-btn {
  background-color: #1877F2;
}

/* Hiệu ứng nổi bật cho nút điện thoại */
@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(37, 211, 102, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
  }
}

.phone-btn {
  animation: pulse 2s infinite;
}

/* Responsive cho màn hình nhỏ */
@media (max-width: 768px) {
  .fixed-contact-buttons {
    bottom: 20px;
    right: 20px;
    gap: 10px;
  }
  
  .contact-btn {
    width: 50px;
    height: 50px;
  }
  
  .contact-btn i {
    font-size: 20px;
  }
}

.zalo-btn {
  background-color: #0068FF;
}

.zalo-icon {
  font-weight: bold;
  font-size: 24px;
  font-family: Arial, sans-serif;
}