:root {
      --text: #111;
      --muted: #666;
      --bg: #fafafa;
      --link: #000;
      --max-width: 42rem;
    }

    html {
      background: var(--bg);
      color: var(--text);
      font-family: Georgia, "Times New Roman", serif;
      line-height: 1.6;
    }

    body {
      margin: 0;
      padding: 3rem 1.25rem;
      display: flex;
      justify-content: center;
    }

    main {
      max-width: var(--max-width);
      width: 100%;
    }

    h1, h2 {
      font-weight: normal;
      margin-top: 2.5rem;
    }

    h1 {
      font-size: 2rem;
      margin-top: 0;
    }

    h2 {
      font-size: 1.25rem;
      color: var(--muted);
    }

    p {
      margin: 1rem 0;
    }

    ul {
      list-style: none;
      padding-left: 0;
      margin: 1rem 0;
    }

    li {
      margin: 0.5rem 0;
    }

    a {
      color: var(--link);
      text-decoration: underline;
      text-underline-offset: 0.15em;
    }

    a:hover {
      text-decoration-thickness: 2px;
    }

    header {
      margin-bottom: 3rem;
    }

    nav a {
      margin-right: 1rem;
      white-space: nowrap;
    }

    footer {
      margin-top: 4rem;
      font-size: 0.9rem;
      color: var(--muted);
    }

    .section-intro {
      color: var(--muted);
      font-size: 0.95rem;
    }