:root{
  --bg:#f3f5f7; --surface:#ffffff; --ink:#14202b; --muted:#53626f; --line:#d5dce2; --accent:#1f6f78;
  --serif:Charter,"Iowan Old Style","Palatino Linotype",Georgia,serif;
  --sans:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root{--bg:#0f171e;--surface:#16212a;--ink:#e6edf2;--muted:#9aabb8;--line:#27363f;--accent:#6cc4cc;color-scheme:dark}
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.6 var(--sans)}
a{color:var(--accent)}
a:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.wrap{max-width:44rem;margin:0 auto;padding:0 1.25rem}
header.top{border-bottom:1px solid var(--line)}
header.top .wrap{display:flex;justify-content:space-between;align-items:baseline;padding-top:1.1rem;padding-bottom:1.1rem;gap:1rem;flex-wrap:wrap}
.brand{font:700 1.25rem var(--serif);color:var(--ink);text-decoration:none}
nav a{margin-left:1.25rem;color:var(--muted);text-decoration:none}
nav a:hover{color:var(--ink)}
.hero{padding:4.5rem 0 3rem}
h1{font:700 clamp(2rem,6vw,3.1rem)/1.15 var(--serif);margin:0 0 1.1rem;letter-spacing:-.01em}
.lead{font-size:1.15rem;color:var(--muted);max-width:36rem;margin:0 0 2rem}
.log{background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--accent);border-radius:4px;margin:0;padding:.4rem 1.1rem;list-style:none}
.log li{display:flex;gap:1rem;padding:.7rem 0;border-bottom:1px solid var(--line)}
.log li:last-child{border-bottom:0}
.log time{flex:0 0 4.2rem;color:var(--muted);font-variant-numeric:tabular-nums}
section{padding:2.5rem 0;border-top:1px solid var(--line)}
h2{font:700 1.6rem/1.25 var(--serif);margin:0 0 1rem}
section p{max-width:38rem;margin:.5rem 0}
dl{margin:0}
dt{font-weight:650;margin-top:1.1rem}
dd{margin:.15rem 0 0;color:var(--muted);max-width:38rem}
ol{padding-left:1.3rem;max-width:38rem}
ol li{margin:.6rem 0}
details{border-bottom:1px solid var(--line);padding:.8rem 0;max-width:38rem}
summary{cursor:pointer;font-weight:600}
details p{color:var(--muted)}
footer{border-top:1px solid var(--line);padding:1.8rem 0 3rem;color:var(--muted);font-size:.95rem}
.notfound{padding:5rem 0 6rem}
.notfound .code{font:700 4rem/1 var(--serif);color:var(--accent);margin:0 0 .5rem}