body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f9f9f9;
    color: #333;
    margin: 0;
    padding: 2em;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
  }
 
  h1, h2 {
    color: #005b96;
  }
 
  form {
    display: flex;
    gap: 0.5em;
    margin-bottom: 1.5em;
  }
 
  input[type="text"] {
    flex-grow: 1;
    padding: 0.5em;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 1em;
  }
 
  button {
    padding: 0.5em 1em;
    background-color: #005b96;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1em;
  }
 
  button:hover {
    background-color: #003f6b;
  }
 
  #comments {
    background: #fff;
    border: 1px solid #ccc;
    padding: 1em;
    border-radius: 6px;
  }
 
  .comment {
    margin: 0.5em 0;
    padding: 0.5em;
    background: #f0f0f0;
    border-left: 4px solid #005b96;
    border-radius: 4px;
  }