.bmc-button {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: #FFDD00;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  animation: pulse 2s infinite;
}

.bmc-button:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
  animation: none;
}

.bmc-button img {
  width: 30px;
  height: 30px;
}

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

@media (max-width: 768px) {
  .bmc-button {
    width: 45px;
    height: 45px;
    bottom: 15px;
    right: 15px;
  }

  .bmc-button img {
    width: 26px;
    height: 26px;
  }
}

@media (max-width: 480px) {
  .bmc-button {
    width: 40px;
    height: 40px;
    bottom: 10px;
    right: 10px;
  }

  .bmc-button img {
    width: 22px;
    height: 22px;
  }
}