:root{--bg:#f7f9fb;--surface:#fff;--border:#dde3ea;--text:#1f2933;--muted:#56606b;--accent:#0b6fa4;--code-bg:#eef2f6}@media (prefers-color-scheme:dark){:root{--bg:#12171c;--surface:#1a2028;--border:#2b333d;--text:#e6eaee;--muted:#a3adb8;--accent:#7dd3fc;--code-bg:#232b35}}*,:before,:after{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0;padding:2rem 1.25rem 4rem;font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.6}.page{max-width:46rem;margin:0 auto}.page__header{margin-bottom:2.5rem}.page__title{letter-spacing:-.02em;margin:0 0 .25rem;font-size:clamp(2rem,6vw,2.75rem)}.page__lead{color:var(--muted);margin:0;font-size:1.125rem}.card{background:var(--surface);border:1px solid var(--border);border-radius:12px;margin-bottom:1.25rem;padding:1.25rem 1.5rem}.card h2{color:var(--accent);margin-top:0;font-size:1.125rem}.card p:last-child{margin-bottom:0}code{background:var(--code-bg);border-radius:4px;padding:.1em .35em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.9em}.page__footer{color:var(--muted);margin-top:2.5rem;font-size:.875rem}