.btn-guardar {
  background: none;
  border: none;
  font-size: 1.8rem;
  cursor: pointer;
  color: #666;
  transition: color 0.3s ease, transform 0.2s ease;
}
.btn-guardar:hover {
  color: #ff9800;
  transform: scale(1.2);
}
.btn-guardar.active {
  color: #e53935;
}