.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
  }
  
  .modal-content {
    background-color: #fff;
    margin: 5% auto;
    padding: 0;
    border-radius: 8px;
    width: 90%;
    max-width: 400px;
    position: relative;
  }
  
  .close {
    position: absolute;
    right: 12px;
    top: 8px;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
  }
  
  iframe {
    width: 100%;
    height: 640px;
    border: none;
  }
  
  button {
    padding: 12px 24px;
    font-size: 16px;
    cursor: pointer;
  }
  
  body {
    opacity: 1;
    transition: opacity 2.5s ease;
  }
  
  body.fade-out {
    opacity: 0;
  }

  body.fade-in {
    opacity: 1;
  }