body {
    margin: 0;
    background-color: #f0f0f0;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
  }
  
  .overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
  }
  
  .loading {
    text-align: center;
    color: white;
  }
  
  .spinner {
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top: 4px solid white;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 2s linear infinite;
  }
  
  @keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
  }
  
  .content {
    z-index: 1;
  }
  
  .hide {
    display: none;
  }