body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    color: #333;
  }
  
  header {
    background-color: #8b0000;
    color: #fff;
    padding: 20px;
    text-align: center;
  }
  
  main {
    padding: 20px;
  }
  
  form {
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-width: 300px;
    margin: 0 auto;
  }
  
  input, button {
    padding: 10px;
    font-size: 16px;
  }
  
  button {
    background-color: #8b0000;
    color: #fff;
    border: none;
    cursor: pointer;
  }
  
  button:hover {
    background-color: #a30000;
  }