:root{--bg:#f8fafc;--surface:#fff;--border:#d4e4f0;--text:#10283a;--muted:#57697a;--accent:#1a5f8a}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Inter,sans-serif}
header,footer{padding:1rem 1.25rem;border-bottom:1px solid var(--border)}
footer{border-bottom:0;border-top:1px solid var(--border);margin-top:3rem;display:flex;flex-wrap:wrap;gap:.5rem 1.5rem;font-size:.875rem;justify-content:center}
header a.brand{font-weight:700;color:var(--text);text-decoration:none}
main{max-width:46rem;margin:0 auto;padding:2rem 1.25rem}
h1{font-size:1.875rem;letter-spacing:-.02em;margin:0 0 .5rem}
h2{font-size:1.25rem;margin:2rem 0 .5rem}
p,li{color:var(--muted)}
strong{color:var(--text)}
a{color:var(--accent)}
.updated{font-size:.875rem}
.table-wrap{overflow-x:auto}
table{border-collapse:collapse;width:100%;font-size:.9rem;background:var(--surface)}
th,td{border:1px solid var(--border);padding:.5rem .65rem;text-align:left;vertical-align:top;color:var(--muted)}
th{color:var(--text);background:#eef5fb}
@media (prefers-color-scheme:dark){:root{--bg:#0f1b26;--surface:#15232f;--border:#2a3d4d;--text:#e6eef5;--muted:#a9b8c5;--accent:#7cc4f0}th{background:#1b2d3b}}