:root {
      color-scheme: light;
      --ink: #1d1d1f;
      --muted: #626267;
      --line: #d2d2d7;
      --link: #0066cc;
    }

    * {
      box-sizing: border-box;
    }

    body {
      margin: 0;
      background: #fff;
      color: var(--ink);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      font-size: 1rem;
      line-height: 1.65;
      letter-spacing: 0;
      overflow-wrap: anywhere;
    }

    main {
      max-width: 808px;
      margin: 0 auto;
      padding: 64px 24px 80px;
    }

    header {
      border-bottom: 1px solid var(--line);
      padding-bottom: 24px;
      margin-bottom: 24px;
    }

    h1, h2 {
      color: var(--ink);
      line-height: 1.3;
      margin: 0;
      font-weight: 600;
    }

    h1 {
      font-size: 2.25rem;
    }

    h2 {
      font-size: 1.25rem;
      margin-top: 36px;
    }

    p {
      margin: 12px 0 0;
    }

    ul {
      padding-left: 24px;
      margin: 12px 0 0;
    }

    li + li {
      margin-top: 8px;
    }

    a {
      color: var(--link);
      text-underline-offset: 3px;
    }

    a:focus-visible {
      outline: 2px solid var(--link);
      outline-offset: 4px;
    }

    .updated {
      color: var(--muted);
      font-size: 0.875rem;
      margin-top: 12px;
    }

    .contact {
      margin-top: 12px;
    }

    @media (max-width: 600px) {
      main {
        padding: 32px 20px 48px;
      }

      h1 {
        font-size: 2rem;
      }
    }

    @media print {
      main {
        max-width: none;
        padding: 0;
      }

      h1, h2 {
        break-after: avoid;
      }

      p, li {
        orphans: 3;
        widows: 3;
      }

      a {
        color: inherit;
      }
    }