body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #f5f5f5;
  }
  .landing-container {
    text-align: center;
    padding: 50px 20px;
  }
  .landing-container .logo img {
    height: 160px;
    /* margin-bottom: 20px; */
  }
  .landing-container h1 {
    font-size: 28px;
    margin-bottom: 30px;
  }
  .btn {
    display: block;
    width: 200px;
    margin: 10px auto;
    padding: 12px 0;
    font-size: 16px;
    color: #fff;
    background-color: #757575;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: 0.3s;
  }
  .btn:hover {
    background-color: #5f5f5f;
  }
  /* Modal */
  .modal {
    display: none;
    position: fixed;
    z-index: 999;
    left:0; top:0;
    width:100%; height:100%;
    background: rgba(0,0,0,0.5);
    justify-content: center;
    align-items: center;
  }
  .modal-content {
    background:white;
    padding: 20px 30px;
    border-radius: 10px;
    text-align:center;
    width: 90%;
    max-width: 350px;
  }
  .modal-content input {
    width: 100%;
    padding: 10px;
    margin-top: 15px;
    font-size: 16px;
  }
  .modal-content button {
    margin-top: 15px;
  }