:root{--bg:#f7f6f3;--ink:#1d1c1a;--muted:#65625c;--accent:#b4381c}@media (prefers-color-scheme:dark){:root{--bg:#14130f;--ink:#f1efe9;--muted:#a8a49b;--accent:#f0764f}}body{background:var(--bg);color:var(--ink);margin:0;font:16px/1.6 system-ui,Segoe UI,sans-serif}main{max-width:42rem;margin:0 auto;padding:32px 16px 64px}h1{font-size:1.8rem;line-height:1.2}h2{margin-top:2rem;font-size:1.15rem}a{color:var(--accent)}.back{margin-bottom:24px;display:inline-block}.note{color:var(--muted);font-size:.9rem}