.loader {
  border: 4px solid #f3f3f3;
  border-top: 4px solid #4f46e5; /* Color del spinner */
  border-radius: 50%;
  width: 32px;
  height: 32px;
  animation: spin 1s linear infinite;
  margin: 0 auto;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}