/* Modal container - hidden by default */
.demo-test-modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7); /* Semi-transparent background */
  }
  
  /* Modal content box */
  .demo-test-modal-content {
    position: relative;
    background-color: #fff;
    margin: 5% auto;
    padding: 15px;
    border: 1px solid #888;
    width: 90%;
    max-width: 1000px; /* Maximum width for desktop */
    height: 80%; /* Fullscreen for iframe */
    box-shadow: 0 5px 15px rgba(0,0,0,.5);
    border-radius: 8px;
    overflow: hidden;
  }
  
  /* Close button */
  .demo-test-close {
    color: #aaa;
    position: absolute;
    right: 15px;
    top: 10px;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
  }
  
  .demo-test-close:hover,
  .demo-test-close:focus {
    color: #000;
    text-decoration: none;
    cursor: pointer;
  }
  
  /* Responsive iframe */
  .demo-test-modal-content iframe {
    width: 100%;
    height: 100%;
    border: 0;
  }
  
  /* Responsive for smaller screens */
  @media screen and (max-width: 768px) {
    .demo-test-modal-content {
      width: 95%;
      height: 90%;
    }
  }