#modal-confirmacion {
  display: none;
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.6);
  z-index: 9999;
  justify-content: center;
  align-items: center;
  animation: fadeIn 0.3s ease-in-out;
}

#modal-confirmacion .contenido {
  background: #fff;
  padding: 30px;
  border-radius: 12px;
  max-width: 400px;
  width: 90%;
  text-align: center;
  font-family: Arial;
  opacity: 0;
  transform: scale(0.9);
  animation: zoomIn 0.3s ease-out forwards;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes zoomIn {
  to {
    opacity: 1;
    transform: scale(1);
  }
}