:root{color-scheme:light;--paper:#f5f5fa;--card:#ffffff;--ink:#17161f;--muted:#5c596f;--line:#e2e0ee;--accent:#5a3fe0;--button:#6246ea;--button-ink:#fff;--notice:#efebff;--notice-line:#7b61ff}
@media (prefers-color-scheme:dark){:root{color-scheme:dark;--paper:#0f0f16;--card:#181823;--ink:#efeef7;--muted:#aaa7c0;--line:#2c2b3d;--accent:#a596ff;--button:#8d7bff;--button-ink:#0f0f16;--notice:#1e1a33;--notice-line:#8d7bff}}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font:17px/1.7 system-ui,-apple-system,"Segoe UI",sans-serif}
a{color:var(--accent);text-underline-offset:4px;overflow-wrap:anywhere}
header,main,footer{max-width:1100px;margin:auto;padding:24px}
header{border-bottom:1px solid var(--line)}
nav{display:flex;align-items:center;gap:22px;flex-wrap:wrap}nav a{font-weight:650}
a.brand{display:flex;gap:12px;align-items:center;margin-right:auto;text-decoration:none;color:var(--ink);font-weight:800}a.brand img{border-radius:10px}
h1,h2{line-height:1.15;letter-spacing:-.02em}h1{font-size:clamp(36px,6vw,58px);margin:16px 0}h2{font-size:26px;margin:36px 0 14px}
.eyebrow{text-transform:uppercase;letter-spacing:.14em;font-size:12px;font-weight:800;color:var(--accent);margin-top:32px}
.intro{font-size:20px;max-width:650px}
.document{max-width:800px}.document section{margin:32px 0}.document li{margin:8px 0}
.button{display:inline-block;background:var(--button);color:var(--button-ink);padding:13px 23px;border-radius:14px;text-decoration:none;font-weight:750;margin:12px 8px 0 0}
.notice{border-left:4px solid var(--notice-line);padding:14px 20px;background:var(--notice);border-radius:0 12px 12px 0}
.muted,footer{color:var(--muted);font-size:14px}
footer{border-top:1px solid var(--line);margin-top:44px;padding-bottom:40px}footer nav{gap:18px}
details{padding:20px 0;border-bottom:1px solid var(--line)}summary{cursor:pointer;font-weight:750;font-size:19px}
summary:focus-visible,a:focus-visible{outline:3px solid var(--notice-line);outline-offset:4px}
@media(max-width:720px){header,main,footer{padding:16px}nav{gap:14px;font-size:15px}.intro{font-size:18px}h2{font-size:23px}}