/* Popup background */
    .modal {
      position: fixed;
      inset: 0;                     /* top:0; right:0; bottom:0; left:0 */
      backdrop-filter: blur(4px);
      background: rgba(0, 255, 255, 0.3); /* semi-transparent */
      display: flex;
      justify-content: center;
      align-items: center;
      z-index: 999;                 /* above page content */
    }

    /* Popup box */
    .modal-content {
      background: #e8d9ae;
      margin: 10% auto;
      padding: 20px;
      width: 90%;
      max-width: 500px;
      border-radius: 8px;
    }

    /* Close button */
    .close {
      float: right;
      font-size: 28px;
      cursor: pointer;
    }

    .button-row {
    display: flex;
    justify-content: center;
    gap: 15px;        /* space between buttons */
    margin-top: 10px;
    }


    #cancelBtn {
      width: 20vw;
      background-color: #c0c0c0;
      color: #000000;
      padding: 14px 25px;
      text-align: center;
      font-size: 3vh;
      text-decoration: none;
      /* display: inline-block; */
      border-radius: 8px;
      border-color: #000000;
      border-width: 2px;
      border-style: solid;
    }

    #cancelBtn:hover {
      background: #bbb;
    }

    #sendBtn {
      width: 20vw;
      background-color: #33adff;
      color: #000000;
      padding: 14px 25px;
      text-align: center;
      font-size: 3vh;
      text-decoration: none;
      /* display: inline-block; */
      border-radius: 8px;
      border-color: #000000;
      border-width: 2px;
      border-style: solid;
    }

    input[name="email"] {
      width: 300px;   /* fixed width */
    }

    input[name="name"] {
      width: 300px;   /* fixed width */
    }

    textarea[name="message"] {
      width: 300px;   /* fixed width */
    }