/* Basic page style */
    body {
      font-family: Arial, sans-serif;
      margin: 0;
      padding: 0;
      background: #f0f8ff;
     
    }

    /* Overlay background */
    #popupOverlay {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(0, 0, 0, 0.6);
      display: none; /* hidden by default */
      justify-content: center;
      align-items: center;
      z-index: 999;
    }

    /* Popup box */
    #popupBox {
      background: white;
      padding: 20px 30px;
      border-radius: 10px;
      box-shadow: 0 4px 10px rgba(0,0,0,0.3);
      width: 300px;
      text-align: center;
    }

    #popupBox h2 {
      color: #007acc;
      margin-top: 0;
    }

    #popupBox button {
      margin-top: 15px;
      padding: 8px 15px;
      border: none;
      border-radius: 5px;
      background: #007acc;
      color: white;
      cursor: pointer;
    }

    #popupBox button:hover {
      background: #005f99;
    }