:root{--bg:#fff;--fg:#1c1b1f;--muted:#5f5c66;--accent:#7a4b2a;--line:#e4e0e8;--warn:#fff4d6}
@media (prefers-color-scheme:dark){:root{--bg:#141316;--fg:#ece9f0;--muted:#a9a5b3;--accent:#d9a273;--line:#2e2b34;--warn:#3a321a}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
main{max-width:720px;margin:0 auto;padding:32px 16px 64px}
h1{font-size:1.7rem;line-height:1.25;margin:0 0 .25em}
h2{font-size:1.2rem;margin:2em 0 .4em}
p,li{overflow-wrap:anywhere}
a{color:var(--accent)}
.meta{color:var(--muted);font-size:.9rem}
nav{border-bottom:1px solid var(--line);padding:12px 16px;font-size:.95rem}
nav a{margin-right:16px;display:inline-block}
.todo{background:var(--warn);padding:0 .25em;border-radius:3px}