/* Lightbox overlay */
  .lightbox {
    display: none; /* Hidden by default */
    position: fixed;
    top: -180px; left: 0;
    width: 100%; height: 100%;
    background: rgba(0,0,0,0.01);
    justify-content: center;
    align-items: center;
  }

  /* Lightbox content */
  .lightbox-content {
    position: relative;
    width: 80%;
    max-width: 500px;
    background: rgba(0,0,0,0.1);
    border-radius: 8px;
    overflow: hidden;
  }

  /* Iframe styling */
  .lightbox-content iframe {
    display: block;
    width: 100%;
    height: 50px;
    border: none;
  }

  /* Close button */
  .close-btn {
    position: absolute;
    top: 15px;
    right: 10px;
    font-size: 28px;
    color: white;
    cursor: pointer;
    background: rgba(0,0,0,0.8);
    border-radius: 50%;
  }