:root{color-scheme:dark;--bg:#0c141d;--surface:#13202e;--line:#263b52;--text:#f1f5f9;--muted:#94a3b8;--accent:#38bdf8;--gold:#facc15}
*{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",sans-serif;font-size:16px;line-height:1.75}
a{color:var(--accent);text-underline-offset:4px}a:hover{color:#fff}
.site-header{display:flex;justify-content:space-between;align-items:center;gap:24px;max-width:1080px;margin:auto;padding:26px 32px;border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:14px;text-decoration:none;color:var(--text);font-weight:700;letter-spacing:.08em;font-size:13px}
.brand-mark{display:grid;place-items:center;background:var(--accent);color:var(--bg);width:44px;height:44px;border-radius:10px;font-size:16px;font-weight:800}
.brand-sub{display:block;color:var(--muted);font-size:9px;margin-top:4px;letter-spacing:.11em;font-weight:500}
.page{max-width:980px;margin:auto;padding:0 32px}
.intro{padding:52px 0 28px}
.eyebrow{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.1em;font-size:11px;color:var(--gold);font-weight:600;margin:0 0 14px}
h1{font-size:clamp(36px,5.5vw,58px);line-height:1.12;letter-spacing:-.04em;margin:0 0 18px}
.lead{font-size:18px;color:#cbd5e1;max-width:720px;margin:0 0 16px}
.effective{font-size:12px;color:var(--muted)}
.reference-links{display:flex;flex-wrap:wrap;gap:18px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:14px 0;margin:20px 0 36px}
.reference-links a{text-decoration:none;font-size:14px;font-weight:600}
main section{padding-bottom:28px;margin-bottom:28px;border-bottom:1px solid var(--line)}
main section:last-child{border-bottom:0}
main h2{font-size:23px;margin:0 0 14px;letter-spacing:-.02em}
main p,main li{font-size:15px;color:#cbd5e1;line-height:1.8}
code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.92em;background:var(--surface);padding:2px 6px;border-radius:4px;overflow-wrap:anywhere}
#download-source{background:var(--gold);color:#0c141d;border:0;border-radius:8px;padding:14px 20px;font:inherit;font-weight:700;cursor:pointer;margin:8px 0 14px}
#download-source:disabled{opacity:.6;cursor:wait}
.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}
.card p{margin:0;font-size:13px;color:var(--muted)}
footer{border-top:1px solid var(--line);padding:26px 0 40px;margin-top:32px;color:var(--muted);font-size:12px}
footer div{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;margin-top:12px}