:root{--paper:#F7F4EE;--card:#FFFDF8;--ink:#1A1B18;--muted:#6A6D63;--copper:#A65A2E;
--copper-deep:#7C3F1D;--olive:#5C6157;--hair:#E6E1D6}
*{margin:0;padding:0;box-sizing:border-box}
body{background:var(--paper);color:var(--ink);font:17px/1.7 "Inter",system-ui,sans-serif}
a{color:var(--copper-deep)}
.wrap{max-width:1040px;margin:0 auto;padding:0 22px}
header.top{border-bottom:1px solid var(--hair);background:var(--card);position:sticky;top:0;z-index:200}
#read-progress{position:fixed;top:0;left:0;height:3px;width:0;background:var(--copper);z-index:300}
.topbar{display:flex;align-items:center;justify-content:space-between;padding:18px 0;gap:16px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink)}
.brand svg{flex:0 0 auto}
.brand .n{font-family:Georgia,serif;font-weight:700;font-size:21px;line-height:1.1}
.brand .t{display:block;font-family:Inter,sans-serif;font-weight:600;font-size:10px;
letter-spacing:.34em;text-transform:uppercase;color:var(--copper)}
nav.main{display:flex;gap:22px;flex-wrap:wrap}
nav.main a{text-decoration:none;color:var(--muted);font-size:14px;font-weight:600;letter-spacing:.02em}
nav.main a:hover,nav.main a.on{color:var(--copper-deep)}
.hero{padding:64px 0 56px;text-align:center;background:var(--card);border-bottom:1px solid var(--hair)}
.kicker{letter-spacing:.2em;text-transform:uppercase;font-size:12px;color:var(--copper);font-weight:700}
.hero h1{font-family:Georgia,serif;font-size:clamp(30px,5vw,44px);line-height:1.18;max-width:840px;margin:12px auto 14px}
.hero h1 span{display:block}
h1,h2,h3,h4{text-wrap:balance}
.hero p{color:var(--muted);max-width:540px;margin:0 auto 24px;font-size:18px}
.btn{display:inline-block;background:var(--copper);color:#fff;border-radius:999px;
padding:12px 28px;font-weight:600;font-size:15px;text-decoration:none;border:0;cursor:pointer}
.btn:hover{background:var(--copper-deep)}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;padding:44px 0}
@media(max-width:820px){.grid{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--hair);border-radius:14px;overflow:hidden;
display:flex;flex-direction:column;text-decoration:none;color:var(--ink)}
.card img,.card svg.heroimg{width:100%;height:auto;display:block}
.card .pad{padding:20px 22px 24px}
.card .cat{color:var(--copper);letter-spacing:.18em;text-transform:uppercase;font-size:11px;font-weight:700}
.card h3{font-family:Georgia,serif;font-size:21px;line-height:1.3;margin:8px 0 8px}
.card p{color:var(--muted);font-size:15px}
.sectionhead{font-family:Georgia,serif;font-size:26px;margin:36px 0 4px}
article.post{max-width:680px;margin:0 auto;padding:46px 0 30px}
article.post .cat{color:var(--copper);letter-spacing:.2em;text-transform:uppercase;font-size:12px;font-weight:700}
article.post h1{font-family:Georgia,serif;font-size:clamp(28px,4.6vw,40px);line-height:1.2;margin:10px 0 12px}
article.post .meta{color:var(--muted);font-size:14px;margin-bottom:26px}
article.post .heroimg{border-radius:14px;border:1px solid var(--hair);margin-bottom:30px;width:100%;height:auto;display:block}
article.post h2{font-family:Georgia,serif;font-size:26px;margin:38px 0 12px;line-height:1.25}
article.post h3{font-family:Georgia,serif;font-size:20px;margin:28px 0 10px}
article.post p{margin-bottom:16px}
article.post ul,article.post ol{margin:0 0 16px 22px}
article.post li{margin-bottom:8px}
article.post blockquote{border-left:3px solid var(--copper);padding:4px 0 4px 18px;color:var(--olive);
font-family:Georgia,serif;font-size:19px;margin:22px 0}
.newsletter{background:var(--ink);color:#F3EEE5;border-radius:16px;padding:38px 30px;text-align:center;margin:40px 0}
.newsletter h2{font-family:Georgia,serif;font-size:26px;margin-bottom:8px}
.newsletter p{color:#B9BBB0;max-width:440px;margin:0 auto 18px;font-size:15px}
.newsletter form{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.newsletter input{border-radius:999px;border:1px solid #3A3B36;background:#24251F;color:#F3EEE5;
padding:12px 20px;font-size:15px;min-width:250px}
.newsletter .ok{color:#C9A227;font-weight:600;display:none}
footer{border-top:1px solid var(--hair);margin-top:30px;background:var(--card)}
.foot{display:flex;justify-content:space-between;gap:20px;padding:30px 0;flex-wrap:wrap;
color:var(--muted);font-size:13px}
.foot a{color:var(--muted);text-decoration:none;margin-right:14px}
.foot a:hover{color:var(--copper-deep)}
.pagehead{padding:46px 0 8px}
.pagehead h1{font-family:Georgia,serif;font-size:34px}
.prose{max-width:680px;padding:18px 0 50px;color:var(--ink)}
.prose p{margin-bottom:14px;color:var(--muted)}
.prose h2{font-family:Georgia,serif;font-size:23px;margin:28px 0 10px;color:var(--ink)}
.prose ul{margin:0 0 14px 22px;color:var(--muted)}
.faq{border-top:1px solid var(--hair);margin-top:34px;padding-top:8px}
.faq h2{font-family:Georgia,serif;font-size:26px;margin:20px 0 6px}
.faq h3{font-family:Georgia,serif;font-size:19px;margin:20px 0 6px}
.faq p{color:var(--muted)}
.srcs{border-top:1px solid var(--hair);margin-top:34px;padding-top:16px;font-size:14px;color:var(--muted)}
.srcs h2{font-family:Georgia,serif;font-size:20px;margin-bottom:10px;color:var(--ink)}
.srcs ol{margin-left:20px}
.srcs a{word-break:break-all}

/* article layout with TOC sidebar */
.article-layout{display:grid;grid-template-columns:250px minmax(0,1fr);gap:44px;max-width:1000px;margin:0 auto;padding:46px 0 30px}
.article-sidebar{min-width:0}
.toc{position:sticky;top:86px;background:var(--card);border:1px solid var(--hair);border-radius:12px;padding:18px 18px 14px}
.toc-title{font-size:11px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--copper);margin-bottom:10px}
.toc ul{list-style:none;margin:0}
.toc li{margin:0 0 8px}
.toc a{color:var(--muted);text-decoration:none;font-size:13.5px;line-height:1.4;display:block}
.toc a:hover{color:var(--copper-deep)}
@media(max-width:900px){.article-layout{grid-template-columns:1fr;gap:0;padding:34px 0 20px}
.toc{position:static;margin-bottom:26px}}

/* in-article figures, tables, stats */
article.post table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;background:var(--card);border:1px solid var(--hair);border-radius:12px;overflow:hidden}
article.post th{background:var(--ink);color:#F3EEE5;text-align:left;padding:11px 14px;font-weight:600;font-size:13.5px;letter-spacing:.03em}
article.post td{padding:11px 14px;border-top:1px solid var(--hair);color:var(--muted);vertical-align:top}
article.post td:first-child{color:var(--ink);font-weight:600}
article.post tr:nth-child(even) td{background:#FBF9F3}
.tablewrap{overflow-x:auto;margin:22px 0}
.tablewrap table{margin:0}
figure.fig{margin:28px 0;background:var(--card);border:1px solid var(--hair);border-radius:14px;overflow:hidden}
figure.fig svg,figure.fig img{width:100%;height:auto;display:block}
figure.fig figcaption{padding:12px 18px;font-size:13.5px;color:var(--muted);border-top:1px solid var(--hair)}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:26px 0}
@media(max-width:640px){.stats{grid-template-columns:1fr}}
.stat{background:var(--card);border:1px solid var(--hair);border-radius:12px;padding:18px 16px 14px;text-align:center}
.stat b{display:block;font-family:Georgia,serif;font-size:30px;color:var(--copper-deep);line-height:1.1;margin-bottom:6px}
.stat span{font-size:13px;color:var(--muted);line-height:1.4;display:block}