:root{
  --ink:#16283F;
  --paper:#EFEDE4;
  --paper-raised:#FBFAF6;
  --bronze:#A8763E;
  --bronze-dark:#8A5F2E;
  --seal:#8B2E2E;
  --pine:#33493F;
  --slate:#55606B;
  --line:#D9D4C6;
  --line-dark:#C4BEAC;
  --radius:2px;
  --maxw:1120px;
}
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  background:var(--paper);
  color:var(--ink);
  font-family:'IBM Plex Sans',system-ui,sans-serif;
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,.serif{font-family:'Source Serif 4',Georgia,serif;font-weight:600;color:var(--ink);letter-spacing:-0.01em;}
.mono{font-family:'IBM Plex Mono',monospace;letter-spacing:0.03em;}
a{color:var(--bronze-dark);text-decoration:underline;}
a:hover{color:var(--seal);}
img{display:block;max-width:100%;}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px;}

/* Top bar */
header.topbar{
  position:sticky;top:0;z-index:50;
  background:rgba(239,237,228,0.92);
  backdrop-filter:blur(6px);
  border-bottom:1px solid var(--line);
}
.topbar-inner{
  max-width:var(--maxw);margin:0 auto;padding:16px 28px;
  display:flex;align-items:center;justify-content:space-between;
}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;}
.brand-mark{
  width:30px;height:30px;border:1.5px solid var(--ink);border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-family:'IBM Plex Mono',monospace;font-size:11px;font-weight:600;
}
.brand-name{font-family:'Source Serif 4',serif;font-weight:600;font-size:18px;color:var(--ink);}
.topbar-cta{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--ink);color:var(--paper-raised);
  padding:9px 18px;border-radius:var(--radius);
  font-size:13.5px;font-weight:600;text-decoration:none;
  font-family:'IBM Plex Mono',monospace;letter-spacing:0.02em;
  transition:transform .15s ease,background .15s ease;
}
.topbar-cta:hover{background:var(--bronze-dark);transform:translateY(-1px);color:var(--paper-raised);}

/* Article layout */
.article-hero{padding:60px 0 40px;border-bottom:1px solid var(--line);}
.article-hero .kicker{
  font-family:'IBM Plex Mono',monospace;font-size:12px;letter-spacing:0.08em;
  text-transform:uppercase;color:var(--seal);margin-bottom:14px;display:block;
}
.article-hero h1{font-size:clamp(30px,4vw,44px);line-height:1.12;margin-bottom:16px;max-width:72ch;}
.article-hero .meta{font-family:'IBM Plex Mono',monospace;font-size:13px;color:var(--slate);}

.article-body{max-width:720px;padding:48px 0 80px;}
.article-body h2{font-size:24px;margin:40px 0 16px;padding-top:20px;border-top:1px solid var(--line);}
.article-body h3{font-size:19px;margin:28px 0 12px;color:var(--bronze-dark);}
.article-body p{margin-bottom:16px;font-size:16.5px;line-height:1.72;color:#1f1f1f;}
.article-body ul,.article-body ol{margin:0 0 16px 24px;}
.article-body li{margin-bottom:8px;font-size:16.5px;line-height:1.65;}
.article-body strong{color:var(--ink);}
.article-body blockquote{
  border-left:3px solid var(--bronze);padding:16px 20px;margin:24px 0;
  background:var(--paper-raised);font-style:italic;color:var(--slate);
}

/* CTA box */
.cta-box{
  background:var(--ink);color:var(--paper-raised);
  border-radius:4px;padding:32px 28px;margin:40px 0;text-align:center;
}
.cta-box h3{color:var(--paper-raised);font-size:22px;margin-bottom:10px;}
.cta-box p{color:#B9C2CC;margin-bottom:20px;font-size:15px;}
.cta-box .btn{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--seal);color:#fff;padding:13px 24px;border-radius:var(--radius);
  font-weight:600;font-size:15px;text-decoration:none;
  transition:transform .15s ease,background .15s ease;
}
.cta-box .btn:hover{background:#7a2828;transform:translateY(-2px);color:#fff;}

/* Blog listing */
.blog-hero{padding:60px 0 40px;}
.blog-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:28px;padding-bottom:80px;}
.blog-card{
  background:var(--paper-raised);border:1px solid var(--line);border-radius:4px;
  overflow:hidden;transition:transform .2s ease,box-shadow .2s ease;
  text-decoration:none;display:block;color:inherit;
}
.blog-card:hover{transform:translateY(-3px);box-shadow:0 14px 30px -16px rgba(22,40,63,0.25);}
.blog-card-body{padding:22px 24px 26px;}
.blog-card-body .kicker{
  font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:0.06em;
  text-transform:uppercase;color:var(--seal);margin-bottom:10px;display:block;
}
.blog-card-body h2{font-size:20px;margin-bottom:10px;line-height:1.3;text-decoration:none;}
.blog-card-body p{color:var(--slate);font-size:14.5px;line-height:1.55;text-decoration:none;}

/* Footer */
footer{border-top:1px solid var(--line);padding:36px 0 50px;}
.footer-inner{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;}
.footer-inner a{color:var(--slate);font-size:13px;text-decoration:none;}
.footer-inner a:hover{color:var(--ink);}
.footer-inner span{font-family:'IBM Plex Mono',monospace;font-size:12px;color:var(--slate);}

@media(max-width:680px){
  .blog-grid{grid-template-columns:1fr;}
}