.login-form {
    max-width: 400px;
    margin: 0 auto;
    padding: 20px;
    background-color: #f9f9f9;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
  }

  .login-form h2 {
    text-align: center;
    color: #333;
  }

  .form-group {
    margin-bottom: 15px;
  }

  .form-group label {
    display: block;
    margin-bottom: 5px;
    color: #666;
  }

  .form-group input {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    box-sizing: border-box;
  }

  .btn-submit {
    width: 100%;
    padding: 10px;
    background-color: #1a237e;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
  }

  .btn-submit:hover {
    background-color: #1a237e;
  }