.popup {
    display: none;
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    z-index: 999999999999;
    overflow: auto;
  }

  .card_header{
   position: relative;
   display: flex;
 flex-direction: column;
   align-content: center;
   justify-content: center;
   align-items: center;
  }

  .popup-content {
    background-color: #fefefe;
    margin: 15% auto;
    padding: 40px;
    border: 1px solid #888;
    width: 30%;
    border-radius: 10px;
    box-shadow: 0 4px 8px 0 rgba(0,0,0,0.2);
  }

  .close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
  }

  .close:hover,
  .close:focus {
    color: black;
    text-decoration: none;
    cursor: pointer;
  }

  input[type="text"],
  input[type="password"] {
    width: 100%;
    padding: 12px 20px;
    margin: 8px 0;
    display: inline-block;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
  }

  .login-btn {
    background-color: #3e298f;
    color: white;
    padding: 14px 20px;
    margin: 8px 0;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    width: 100%;
  }

  .login-btn:hover {
    background-color: #f65a1e;
  }

  .error {
    color: red;
    margin-top: 10px;
  }