:root{color-scheme:dark light;--bg:#0b1220;--surface:#131d31;--line:#243452;--text:#f1f5f9;--muted:#94a3b8;--accent:#38bdf8;--accent2:#34d399}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;font-size:16px;line-height:1.72}
a{color:var(--accent);text-underline-offset:4px}a:hover{color:#fff}
.site-header{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:20px;max-width:980px;margin:auto;padding:24px 28px;border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:14px;text-decoration:none;color:var(--text);font-weight:700;font-size:15px}
.brand-mark{display:grid;place-items:center;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#06101d;width:42px;height:42px;border-radius:11px;font-size:15px;font-weight:800;letter-spacing:-.02em}
.brand-sub{display:block;color:var(--muted);font-size:11px;font-weight:500;margin-top:2px}
.nav{display:flex;gap:18px;flex-wrap:wrap}
.nav a{text-decoration:none;font-size:14px;font-weight:600;color:#cbd5e1}
.nav a:hover{color:var(--accent)}
.page{max-width:920px;margin:auto;padding:0 28px}
.intro{padding:48px 0 28px;border-bottom:1px solid var(--line);margin-bottom:32px}
.eyebrow{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.09em;text-transform:uppercase;font-size:11px;color:var(--accent2);font-weight:700;margin:0 0 12px}
h1{font-size:clamp(30px,5vw,46px);line-height:1.15;letter-spacing:-.03em;margin:0 0 14px}
.lead{font-size:18px;color:#cbd5e1;max-width:720px;margin:0 0 12px}
.meta{font-size:13px;color:var(--muted);margin:0}
section{padding-bottom:26px;margin-bottom:26px;border-bottom:1px solid var(--line)}
section:last-of-type{border-bottom:0}
h2{font-size:21px;margin:0 0 12px;letter-spacing:-.015em}
p,li{color:#cbd5e1;font-size:15px}
ul{padding-left:20px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:16px;margin:24px 0}
.card{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:20px}
.card h3{margin:0 0 8px;font-size:16px;color:var(--text)}
.card p{margin:0;font-size:14px;color:var(--muted)}
code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.9em;background:var(--surface);padding:2px 6px;border-radius:5px}
footer{border-top:1px solid var(--line);padding:26px 0 44px;margin-top:32px;color:var(--muted);font-size:13px}
footer .row{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;margin-top:10px}