:root{
  --bg:#F7F7FF; --surface:#ffffff; --ink:#131112; --muted:#5c5a66; --line:#e3e2ee;
  --med:#D81159; --focus:#131112;
  --serif:ui-serif,"Iowan Old Style","Palatino Linotype",Palatino,Georgia,serif;
  --sans:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){--bg:#131112;--surface:#1d1a1c;--ink:#F7F7FF;--muted:#b8b6c4;--line:#2f2b2e;--med:#FFBC42;--focus:#FFBC42}
}
:root[data-theme="dark"]{--bg:#131112;--surface:#1d1a1c;--ink:#F7F7FF;--muted:#b8b6c4;--line:#2f2b2e;--med:#FFBC42;--focus:#FFBC42}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:var(--sans);background:var(--bg);color:var(--ink);line-height:1.7}
:focus-visible{outline:3px solid var(--focus);outline-offset:3px;border-radius:4px}
.skip{position:fixed;left:16px;top:-60px;background:var(--surface);padding:10px 16px;border-radius:10px;font-weight:600;color:var(--ink)}
.skip:focus{top:16px}
header{border-bottom:1px solid var(--line);background:var(--surface)}
header .in{max-width:780px;margin:0 auto;padding:18px 24px;display:flex;justify-content:space-between;align-items:center;gap:16px}
.logo{font-family:var(--serif);font-weight:700;font-size:1.2rem;color:var(--ink);text-decoration:none;display:flex;align-items:center;gap:10px}
.logo-mark{width:32px;height:32px;border-radius:10px;background:#D81159;display:grid;place-items:center;color:#fff;font-size:.9rem}
a{color:var(--med);text-underline-offset:3px}
main{max-width:780px;margin:0 auto;padding:48px 24px 80px}
@media (max-width:600px){header .in,main{padding-left:16px;padding-right:16px}}
h1{font-family:var(--serif);font-size:clamp(2rem,5vw,2.8rem);line-height:1.15;margin-bottom:8px}
.updated{color:var(--muted);margin-bottom:32px}
h2{font-size:1.25rem;margin:36px 0 10px}
h3{font-size:1.05rem;margin:22px 0 6px}
p,li{color:var(--ink)}
p+p{margin-top:12px}
ul,ol{padding-left:1.4em;margin:10px 0}
li{margin:6px 0}
table{width:100%;border-collapse:collapse;margin:14px 0;font-size:.95rem}
th,td{text-align:left;padding:10px 12px;border:1px solid var(--line);vertical-align:top}
th{background:var(--surface)}
.note{background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--med);padding:16px 18px;border-radius:10px;margin:18px 0}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}
.todo{background:#fff1a6;color:#4a3a00;padding:0 .35em;border-radius:4px;font-weight:600}
footer{border-top:1px solid var(--line);color:var(--muted);font-size:.9rem}
footer .in{max-width:780px;margin:0 auto;padding:24px;display:flex;flex-wrap:wrap;gap:8px 20px}
.logo-img{width:32px;height:32px;border-radius:50%;object-fit:cover;background:#fff}