/*
 * loading.css - Estilo para overlay de loading global
 */
#global-loading-overlay {
  display: none;
  position: fixed;
  z-index: 9999;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(255,255,255,0.7);
  align-items: center;
  justify-content: center;
}
#global-loading-overlay.active {
  display: flex;
}
#global-loading-spinner {
  border: 8px solid #f3f3f3;
  border-top: 8px solid #3498db;
  border-radius: 50%;
  width: 60px;
  height: 60px;
  animation: spin 1s linear infinite;
}
@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}