:root{
  --ink:#0f172a; --muted:#475569; --line:#e2e8f0; --bg:#ffffff;
  --card:#f8fafc; --brand:#2563eb; --brand-ink:#ffffff;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6}
.wrap{max-width:1100px;margin:0 auto;padding:24px}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
h1{font-size:clamp(1.6rem,3vw,2.2rem);line-height:1.2;margin:.2em 0 .5em}
h2{margin:1.2em 0 .3em}
p{margin:.4em 0 1em}
.note{color:var(--muted)}
.badge{font-size:.8rem;background:#ecf3ff;border:1px solid #cfe2ff;color:#1e3a8a;padding:4px 10px;border-radius:999px;display:inline-block}
.grid{display:grid;gap:16px}
.grid.cols-3{grid-template-columns:repeat(3,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px}
.card h3{margin:.2em 0 .4em}
.pills{display:flex;gap:8px;flex-wrap:wrap}
.pill{display:inline-flex;padding:8px 12px;border:1px solid var(--line);border-radius:999px;background:#fff;font-weight:600}
.list-clean{list-style:none;margin:0;padding:0}
.list-clean li{padding:10px 12px;border-bottom:1px solid var(--line)}
.kicker{font-size:.85rem;letter-spacing:.3px;color:#0b5d1e;background:#ecfdf5;border:1px solid #bbf7d0;padding:4px 10px;border-radius:999px;display:inline-block}
header.nav{border-bottom:1px solid var(--line);background:linear-gradient(180deg,#fff 0%,#f8fbff 100%)}
.topbar{display:flex;gap:16px;align-items:center;justify-content:space-between}
.logo{font-weight:800}
nav ul{display:flex;gap:12px;list-style:none;margin:0;padding:0;flex-wrap:wrap}
nav a{padding:8px 10px;border-radius:10px}
section{padding:20px 0}
footer{border-top:1px solid var(--line);padding:20px 0;margin-top:20px;background:#fff}
small,.tiny{color:var(--muted)}
@media (max-width:900px){.grid.cols-3{grid-template-columns:1fr}}