:root{
  --bg:#F2F6F4; --surface:#FFFFFF; --ink:#10222B; --muted:#51656B;
  --line:#CBD8D5; --teal:#0F766E; --teal-ink:#FFFFFF; --amber:#C77D0A;
  --head:"Bricolage Grotesque","Segoe UI",system-ui,sans-serif;
  --body:"Instrument Sans","Segoe UI",system-ui,sans-serif;
}
@media (prefers-color-scheme:dark){
  :root{--bg:#0E1A1F; --surface:#15262D; --ink:#E6EFEC; --muted:#9DB1B3;
        --line:#26414A; --teal:#2DD4BF; --teal-ink:#06201D; --amber:#F2B544;}
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:400 1.0625rem/1.6 var(--body);
  padding:env(safe-area-inset-top,0) 0 env(safe-area-inset-bottom,0)}
a{color:inherit}
:focus-visible{outline:3px solid var(--amber);outline-offset:3px}
.wrap{max-width:1080px;margin:0 auto;padding:0 1.25rem}
header.top{border-bottom:1px solid var(--line)}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding-top:1rem;padding-bottom:1rem;flex-wrap:wrap}
.logo{font:700 1.35rem var(--head);text-decoration:none;letter-spacing:-.01em}
.logo span{color:var(--teal)}
nav{display:flex;gap:1.4rem;flex-wrap:wrap}
nav a{text-decoration:none;color:var(--muted);font-weight:500}
nav a:hover{color:var(--ink)}
.hero{padding:4rem 0 3rem}
.hero h1{font:700 clamp(2.3rem,6vw,4.2rem)/1.05 var(--head);letter-spacing:-.03em;margin:0 0 1rem;max-width:15ch}
.hero p.lead{font-size:1.2rem;color:var(--muted);max-width:52ch;margin:0 0 1.75rem}
.btns{display:flex;gap:.75rem;flex-wrap:wrap}
.btn{display:inline-block;padding:.75rem 1.3rem;border-radius:8px;font-weight:600;text-decoration:none;border:2px solid var(--teal)}
.btn.primary{background:var(--teal);color:var(--teal-ink)}
.btn.ghost{color:var(--ink);border-color:var(--line)}
.btn:hover{filter:brightness(1.08)}
.trace{margin-top:2.5rem;background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:1rem 1.25rem}
.trace-head{display:flex;justify-content:space-between;color:var(--muted);font-size:.9rem;margin-bottom:.5rem;gap:1rem;flex-wrap:wrap}
.trace-head b{color:var(--ink);font-variant-numeric:tabular-nums}
.trace svg{width:100%;height:120px;display:block}
.trace .grid{stroke:var(--line);stroke-width:1}
.trace .line{fill:none;stroke:var(--teal);stroke-width:2.5;stroke-linejoin:round;stroke-linecap:round}
section{padding:3.5rem 0;border-top:1px solid var(--line)}
section h2{font:700 clamp(1.7rem,3.5vw,2.3rem)/1.15 var(--head);letter-spacing:-.02em;margin:0 0 .5rem}
section .sub{color:var(--muted);margin:0 0 2rem;max-width:60ch}
.grid3{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1.25rem}
.card{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:1.4rem;display:flex;flex-direction:column;gap:.6rem}
.card h3{font:700 1.25rem var(--head);margin:0}
.card p{margin:0;color:var(--muted)}
.tags{display:flex;gap:.4rem;flex-wrap:wrap}
.tag{font-size:.85rem;padding:.15rem .6rem;border:1px solid var(--line);border-radius:99px;color:var(--muted)}
.card .btn{margin-top:auto;text-align:center;padding:.55rem 1rem}
.soon{color:var(--amber);font-weight:600;font-size:.9rem}
.post time{color:var(--muted);font-size:.9rem}
.post h3 a{text-decoration:none}
.post h3 a:hover{text-decoration:underline}
.about{display:grid;gap:1rem;max-width:62ch}
footer{border-top:1px solid var(--line);padding:2rem 0;color:var(--muted);font-size:.95rem}
footer .wrap{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap}
footer a{margin-left:1rem}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
.page{padding:3rem 0 4rem}
.page h1{font:700 clamp(2rem,5vw,3rem)/1.1 var(--head);letter-spacing:-.02em;margin:0 0 .75rem}
.crumb{color:var(--muted);margin:0 0 1rem;font-size:.95rem}
.crumb a{color:var(--muted)}
.meta{color:var(--muted);margin:0 0 1.5rem}
.prose{max-width:66ch}
.prose h2{font:700 1.4rem var(--head);margin:2rem 0 .5rem}
.prose p,.prose li{margin:.6rem 0}
.tablewrap{overflow-x:auto;margin:1rem 0}
table.dl{width:100%;border-collapse:collapse;min-width:480px}
.dl th,.dl td{text-align:left;padding:.7rem .6rem;border-bottom:1px solid var(--line);vertical-align:top}
.code{font-family:ui-monospace,Consolas,monospace;font-size:.82rem;word-break:break-all;color:var(--muted)}
.btn.off{opacity:.5;pointer-events:none}
.list{display:grid;gap:1.25rem;margin-top:1.5rem}