:root{--bg:#fafaf8;--fg:#1c1f23;--muted:#5d646c;--line:#e3e4e0;--accent:#0b5c8a;--card:#ffffff}
@media (prefers-color-scheme:dark){:root{--bg:#101316;--fg:#e8eaec;--muted:#9aa3ab;--line:#262c31;--accent:#6bb6e3;--card:#161a1e}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
.wrap{max-width:46rem;margin:0 auto;padding:0 20px}
header.top{border-bottom:1px solid var(--line)}
header.top .wrap{display:flex;justify-content:space-between;align-items:center;padding-top:18px;padding-bottom:18px;gap:12px;flex-wrap:wrap}
.brand{font-weight:650;letter-spacing:.01em;color:var(--fg);text-decoration:none}
nav a{color:var(--muted);text-decoration:none;margin-left:18px;font-size:.95rem}
nav a:hover{color:var(--accent)}
main{padding:48px 0 32px}
h1{font-size:clamp(1.9rem,5vw,2.5rem);line-height:1.15;margin:0 0 .4em;letter-spacing:-.01em;text-wrap:balance}
h2{font-size:1.2rem;margin:2.1em 0 .5em;text-wrap:balance}
p.lead{font-size:1.15rem;color:var(--muted);margin:0 0 1.5em}
p,li{max-width:65ch}
a{color:var(--accent)}
code{font:.9em ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;background:var(--card);border:1px solid var(--line);border-radius:5px;padding:.1em .35em;overflow-wrap:anywhere}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:16px 20px;margin:1.2em 0}
.meta{color:var(--muted);font-size:.9rem}
ol,ul{padding-left:1.3em}
footer{border-top:1px solid var(--line);color:var(--muted);font-size:.9rem;padding:22px 0 40px}
footer a{color:var(--muted)}