#guidev-preloader {
  position: fixed;
  z-index: 999999999;
  background: rgba(255, 255, 255, 0.94);
  top: 0; left: 0; right: 0; bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.3s ease;
}
.guidev-loader {
  border: 4px solid #f3f3f3;
  border-top: 4px solid #92278e;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}