:root { --ink:#1a1a1a; --muted:#666; --rule:#e2e2e2; --link:#2b5f9e; --max:44rem; }
* { box-sizing:border-box; }
body { margin:0; color:var(--ink); background:#fff;
  font:400 18px/1.7 -apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif; }
a { color:var(--link); }
.site-header { display:flex; align-items:center; justify-content:space-between;
  flex-wrap:wrap; gap:1rem; padding:1.25rem 2rem; border-bottom:1px solid var(--rule); }
.brand { display:flex; align-items:center; gap:.85rem; font-size:1.25rem; font-weight:600;
  color:var(--ink); text-decoration:none; }
.site-header nav { display:flex; gap:1.75rem; font-size:1.05rem; }
main { max-width:var(--max); margin:0 auto; padding:3rem 1.5rem 4rem; }
h1 { font-size:2.1rem; line-height:1.25; margin:0 0 .5rem; }
h2 { font-size:1.45rem; margin:2.75rem 0 .75rem; }
h3 { font-size:1.15rem; margin:2rem 0 .5rem; }
.post-meta { color:var(--muted); font-size:.95rem; margin:0 0 2.5rem; }
.post p { margin:0 0 1.4rem; }
.post figure { margin:2.5rem 0; }
.post figure img { width:100%; height:auto; border-radius:6px; display:block; }
.post figcaption { color:var(--muted); font-size:.9rem; line-height:1.5; margin-top:.75rem; }
blockquote { margin:2rem 0; padding-left:1.25rem; border-left:3px solid var(--rule);
  color:#333; font-style:italic; }
pre { background:#f6f6f6; padding:1rem 1.25rem; border-radius:6px; overflow-x:auto;
  font-size:.9rem; line-height:1.6; }
code { font-family:ui-monospace,SFMono-Regular,Menlo,monospace; font-size:.92em; }
.references { font-size:.92rem; line-height:1.65; color:#333; }
.references li { margin-bottom:.6rem; }
.post-card { padding:2rem 0; border-bottom:1px solid var(--rule); }
.post-card h2 { margin:0 0 .35rem; }
.post-card h2 a { text-decoration:none; }
.lede { color:var(--muted); margin-bottom:2rem; }
.back { margin-top:3.5rem; padding-top:1.5rem; border-top:1px solid var(--rule); }
.site-footer { border-top:1px solid var(--rule); padding:1.5rem 2rem; color:var(--muted);
  font-size:.9rem; }
@media (max-width:600px){ main{padding:2rem 1.25rem 3rem;} h1{font-size:1.7rem;} }