:root{--bg:#f7f6f2;--card:#ffffff;--ink:#1d1f24;--muted:#5d6370;--line:#e3e1da;--accent:#2f5bd3}
@media (prefers-color-scheme:dark){:root{--bg:#14161a;--card:#1c1f25;--ink:#eceae4;--muted:#a3a8b3;--line:#2c3038;--accent:#8fb0ff}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
main{max-width:760px;margin:0 auto;padding:40px 16px 64px}
h1{font-size:1.9rem;line-height:1.2;margin:0 0 .4rem}
h2{font-size:1.25rem;margin:2.2rem 0 .5rem}
h3{font-size:1.02rem;margin:1.4rem 0 .3rem}
p,li{color:var(--ink)}
.muted{color:var(--muted)}
a{color:var(--accent);overflow-wrap:anywhere}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px 20px;margin:18px 0}
ul{padding-left:1.2rem}
nav{display:flex;gap:16px;flex-wrap:wrap;margin:6px 0 24px}
hr{border:0;border-top:1px solid var(--line);margin:40px 0}
footer{margin-top:48px;font-size:.9rem;color:var(--muted)}
table{border-collapse:collapse;width:100%}
td,th{text-align:left;padding:6px 8px;border-bottom:1px solid var(--line);vertical-align:top}