/* Loader Styles */
.loader {
  position: fixed;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  border: 8px solid #f3f3f3; /* Light grey */
  border-top: 8px solid #3498db; /* Blue */
  border-radius: 50%;
  width: 60px;
  height: 60px;
  animation: spin 1s linear infinite;
  z-index: 10000;
  display: none; /* Hidden by default */
}

@keyframes spin {
  0% { transform: translate(-50%, -50%) rotate(0deg); }
  100% { transform: translate(-50%, -50%) rotate(360deg); }
}