:root {
      --bg: var(--iuve-bg);
      --surface: var(--iuve-surface);
      --line: var(--iuve-border);
      --text: var(--iuve-text);
      --muted: var(--iuve-muted);
      --link: var(--iuve-primary);
    }

    * { box-sizing: border-box; }

    body {
      margin: 0;
      color: var(--text);
      font-family: var(--iuve-font-sans);
      background: linear-gradient(180deg, #f8fbff, var(--bg));
      min-height: 100vh;
    }

    .shell {
      max-width: 920px;
      margin: 0 auto;
      padding: 24px;
    }

    .top {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 16px;
      flex-wrap: wrap;
    }

    .brand-link {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      text-decoration: none;
      color: var(--text);
      font-weight: 700;
    }

    .brand-link img {
      width: 32px;
      height: 32px;
      border-radius: 9px;
    }

    .back-link {
      color: var(--link);
      text-decoration: none;
      font-size: 14px;
      font-weight: 600;
    }

    article {
      background: var(--surface);
      border: 1px solid var(--line);
      border-radius: 18px;
      padding: 26px;
      box-shadow: 0 14px 36px rgba(15, 23, 42, 0.08);
    }

    article h1,
    article h2,
    article h3 {
      font-family: "Source Serif 4", Georgia, serif;
      line-height: 1.25;
      margin-top: 0;
    }

    article h1 { font-size: 36px; margin-bottom: 12px; }
    article h2 { font-size: 26px; margin-top: 22px; margin-bottom: 8px; }
    article h3 { font-size: 20px; margin-top: 18px; margin-bottom: 8px; }

    article p,
    article li {
      line-height: 1.75;
      color: #1e293b;
      font-size: 16px;
    }

    article ul,
    article ol {
      padding-left: 20px;
    }

    .footer-links {
      margin-top: 16px;
      display: flex;
      gap: 14px;
      flex-wrap: wrap;
      font-size: 13px;
      color: var(--muted);
    }

    .footer-links a {
      color: var(--link);
      text-decoration: none;
    }

    @media (max-width: 960px) {
      .shell {
        padding: var(--iuve-space-5);
      }

      article {
        padding: 22px;
      }
    }

    @media (max-width: 640px) {
      .shell {
        padding: var(--iuve-space-4);
      }

      .top {
        align-items: flex-start;
      }

      article {
        padding: 16px;
        border-radius: var(--iuve-radius-md);
      }

      article h1 {
        font-size: 30px;
      }

      article h2 {
        font-size: 22px;
      }

      article h3 {
        font-size: 18px;
      }

      article p,
      article li {
        font-size: 15px;
        line-height: 1.65;
      }
    }