:root{--bg:#f7f7fb;--fg:#16161d;--muted:#5b5b6b;--brand:#4f46e5;--band-bg:#16161d;--band-fg:#e8e8f0}@media (prefers-color-scheme:dark){:root{--bg:#101015;--fg:#ececf3;--muted:#a0a0b2;--brand:#8b84ff;--band-bg:#000;--band-fg:#c9c9d6}}*{box-sizing:border-box}html,body{margin:0}body{background:var(--bg);color:var(--fg);flex-direction:column;min-height:100dvh;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;display:flex}main{flex:1;width:100%;max-width:960px;margin:0 auto;padding:64px 16px}h1{margin:0 0 16px;font-size:clamp(2rem,5vw,3.25rem);line-height:1.1}h1 span{color:var(--brand)}p.lead{color:var(--muted);max-width:60ch;font-size:1.15rem}footer.site{border-top:1px solid color-mix(in srgb, var(--fg) 12%, transparent);text-align:center;color:var(--muted);padding:24px 16px;font-size:.9rem}.cs-band{background:var(--band-bg);color:var(--band-fg);text-align:center;padding:12px 16px;font-size:.85rem}.cs-band a{color:inherit;font-weight:600;text-decoration:none}.cs-band a:hover{text-decoration:underline}