:root{
  --paper:#faf6f0; --ink:#22201d; --muted:#6b635a; --line:#e6ddd0;
  --clay:#c25e3a; --clay-d:#a54a2b; --plum:#5b3a5b; --sage:#e7f0e8; --sage-t:#2f6b43;
  --bad:#f6e2df; --bad-t:#a53324; --card:#fffdfa;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  font-size:18px;line-height:1.65}
.wrap{max-width:820px;margin:0 auto;padding:0 20px}
h1,h2,h3{font-family:Georgia,"Times New Roman",serif;line-height:1.2;color:var(--ink)}
h1{font-size:2rem;margin:.6em 0 .5em}
h2{font-size:1.5rem;margin:1.8em 0 .5em;padding-top:.2em}
h3{font-size:1.2rem;margin:1.4em 0 .3em}
p{margin:.7em 0}
a{color:var(--clay-d);text-decoration:underline;text-underline-offset:2px}
a:hover{color:var(--plum)}
header.site{background:var(--plum);border-bottom:3px solid var(--clay)}
header.site .bar{display:flex;align-items:center;gap:16px;padding-top:12px;padding-bottom:12px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:9px;color:#fff;text-decoration:none;font-family:Georgia,serif;font-size:1.15rem;font-weight:700}
.brand svg{flex:none}
.mainnav{display:flex;gap:16px;flex-wrap:wrap;margin-left:auto}
.mainnav a{color:#efe4ef;text-decoration:none;text-transform:uppercase;letter-spacing:.03em;font-size:.78rem}
.mainnav a:hover{color:#fff;text-decoration:underline}
.menu{display:none;margin-left:auto;background:none;border:0;color:#fff;font-size:1.5rem;cursor:pointer}
.crumbs{font-size:.8rem;color:var(--muted);margin:18px 0 4px}
.crumbs a{color:var(--muted)}
.crumbs .sep{opacity:.5}
.answer{background:var(--card);border:1px solid var(--line);border-left:4px solid var(--clay);
  border-radius:6px;padding:16px 20px;margin:16px 0 8px}
.answer-lead{font-size:1.08rem;margin:0;color:#332f2a}
.answer h1{margin-top:0}
.updated-badge{display:inline-block;background:var(--plum);color:#fff;font-size:.72rem;
  text-transform:uppercase;letter-spacing:.06em;padding:3px 10px;border-radius:20px;margin:20px 0 0}
.tablewrap{overflow-x:auto;margin:18px 0}
table.cmp{border-collapse:collapse;width:100%;font-size:.92rem;background:var(--card)}
table.cmp caption{caption-side:top;text-align:left;font-size:.82rem;color:var(--muted);padding:0 0 8px;font-style:italic}
table.cmp th,table.cmp td{border:1px solid var(--line);padding:9px 12px;text-align:left;vertical-align:top}
table.cmp thead th{background:var(--plum);color:#fff;font-size:.8rem;text-transform:uppercase;letter-spacing:.02em}
table.cmp tbody th{background:#f3ece1;font-weight:700}
table.cmp td.good{background:var(--sage);color:var(--sage-t)}
table.cmp td.bad{background:var(--bad);color:var(--bad-t)}
table.cmp.small{max-width:560px}
.tnote{font-size:.82rem;color:var(--muted);font-style:italic}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px;margin:16px 0}
.card{display:block;background:var(--card);border:1px solid var(--line);border-radius:8px;padding:16px 18px;
  text-decoration:none;color:var(--ink);transition:border-color .15s,transform .15s}
.card:hover{border-color:var(--clay);transform:translateY(-2px)}
.card h3{margin:0 0 6px;color:var(--clay-d);font-size:1.08rem}
.card p{margin:0;font-size:.9rem;color:var(--muted)}
ol.check,ol.ranklist{padding-left:1.3em}
ol.check li,ol.ranklist li{margin:.45em 0}
ul.tools{padding-left:1.2em}
ul.tools li{margin:.4em 0}
.formula{background:#f3ece1;border-radius:6px;padding:12px 16px;font-family:Georgia,serif;font-size:1.05rem}
.callout{background:#fbf3ec;border:1px solid #ecd8c8;border-radius:8px;padding:4px 20px 12px;margin:20px 0}
.callout h3{color:var(--clay-d);margin-top:14px}
.faqblock{margin:28px 0}
.faq{border:1px solid var(--line);border-radius:6px;margin:8px 0;background:var(--card)}
.faq summary{cursor:pointer;padding:12px 16px;font-weight:700;font-family:Georgia,serif;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary:before{content:"+ ";color:var(--clay)}
.faq[open] summary:before{content:"\2212 "}
.faq>div{padding:0 16px 14px}
dl.glossary dt{font-weight:700;font-family:Georgia,serif;margin-top:16px;color:var(--plum)}
dl.glossary dd{margin:.2em 0 0;color:#332f2a}
footer.site{background:#2b262f;color:#cfc7cf;margin-top:48px;padding:26px 0;font-size:.82rem}
footer.site a{color:#e4b9a6}
.updated{color:#a89fa8}
.discl{color:#9a919a}
.foot-links{margin-top:14px}
@media (max-width:640px){
  body{font-size:17px}
  h1{font-size:1.6rem}
  .mainnav{display:none;width:100%;flex-direction:column;gap:8px;margin-top:8px}
  body.nav-open .mainnav{display:flex}
  .menu{display:block}
}