body {
    font-family: Arial, sans-serif;
    max-width: 600px;
    margin: 2em auto;
    padding: 1em;
    background-color: #f2f2f2;
    border-radius: 8px;
  }
  
  form {
    display: flex;
    flex-direction: column;
  }
  
  label, input {
    margin: 0.5em 0;
  }
  
  button {
    margin-top: 1em;
    padding: 0.5em;
    background-color: #008080;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
  }
  
  #result {
    margin-top: 2em;
    font-size: 1.2em;
    color: #333;
  }