:root{
          --bg:#FBFBFC; --surface:#FFFFFF; --sunk:#F5F6F8;
          --ink:#101418; --muted:#5E6772; --faint:#6E747D;
          --line:#EAECEF; --line-2:#DFE2E7;
          --accent:#2E5BFF; --accent-ink:#1C3ED6; --accent-wash:#EFF2FF;
          --live:#0FA152; --live-ink:#0A7A3D; --live-wash:#E8F6EE;
          --warn:#935309; --warn-wash:#FBF1DF;
          --r:14px; --r-lg:20px;
          --sans:"Manrope",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
          --mono:"JetBrains Mono",ui-monospace,"SF Mono",Menlo,monospace;
        }

        * {
            box-sizing: border-box;
        }

        body {
            margin: 0;
            font-family: var(--sans);
            color: var(--ink);
            background: var(--bg);
            line-height: 1.6;
        }

        .container {
            max-width: 980px;
            margin: 0 auto;
            padding: 28px 18px 56px;
        }

        .hero, .card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--r);
            padding: 20px;
        }

        .card {
            margin-top: 14px;
        }

        h1 {
            margin: 0 0 10px;
            font-size: clamp(1.6rem, 4vw, 2.25rem);
            line-height: 1.2;
        }

        h2 {
            margin: 0 0 10px;
            font-size: 1.2rem;
        }

        p {
            margin: 0;
            color: var(--muted);
        }

        ul {
            margin: 0;
            padding-left: 20px;
            color: var(--muted);
            display: grid;
            gap: 6px;
        }

        .links {
            margin: 0;
            padding-left: 18px;
            display: grid;
            gap: 6px;
        }

        a {
            color: var(--accent);
        }

        a:focus-visible,
        button:focus-visible,
        .btn:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .nav-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 10px;
        }

        .nav-button {
            display: block;
            border: 1px solid var(--line-2);
            border-radius: var(--r);
            padding: 12px;
            text-decoration: none;
            color: var(--ink);
            background: var(--accent-wash);
            transition: transform 0.2s ease, border-color 0.2s ease;
        }

        .nav-button:hover {
            transform: translateY(-1px);
            border-color: var(--accent);
        }

        .nav-button strong {
            display: block;
            margin-bottom: 4px;
            font-size: 0.98rem;
        }

        .nav-button small {
            color: var(--muted);
        }