:root{color-scheme:light dark;--fg:#111;--bg:#fafafa;--accent:#0070f3;--muted:#666}@media (prefers-color-scheme:dark){:root{--fg:#f5f5f5;--bg:#0a0a0a;--muted:#999}}*{box-sizing:border-box}body,html{margin:0;padding:0;color:var(--fg);background:var(--bg);font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;line-height:1.5}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}main{max-width:720px;margin:0 auto;padding:3rem 1.5rem}code{background:hsla(0,0%,50%,.15);padding:.1rem .35rem;border-radius:4px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.9em}.muted{color:var(--muted);font-size:.9rem}