/* Preloader */
#grc-explore-preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--dark);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.6s ease, visibility 0.6s ease;
  }
  
  #grc-explore-preloader.hidden {
    opacity: 0;
    visibility: hidden;
  }
  
  .grc-explore-spinner {
    width: 60px;
    height: 60px;
    border: 6px solid rgba(255,255,255,0.2);
    border-top: 6px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
  }
  
  @keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
  }