body {
      font-family: 'Open Sans', sans-serif;
      margin: 0;
      padding: 0;
      background-color: #ffffff;
      color: #3a3a3a;
      line-height: 1.7;
      min-height: 100vh;
      display: flex;
      flex-direction: column;
    }
    header {
      background-color: #f9f7f2;
      padding: 2rem 1rem;
      text-align: center;
    }
    header h1 {
      font-size: 2rem;
      margin: 0;
      color: #3a3a3a;
    }
    main {
      max-width: 800px;
      margin: 2rem auto;
      padding: 0 1rem;
      flex: 1;
    }
    h2 {
      color: #444;
      margin-top: 2rem;
      font-size: 1.4rem;
    }
    a {
      color: #8da392;
      text-decoration: underline;
    }
    footer {
      background-color: #f9f7f2;
      text-align: center;
      padding: 2rem 1rem;
      margin-top: 4rem;
      font-size: 0.9rem;
      border-top: 1px solid #ddd;
    }