:root{color-scheme:light dark;--background:#f5f7f8;--surface:#fff;--text:#152a37;--muted:#506473;--line:#dbe3e8;--accent:#0b618c;--live:#d92648;--soft:#eaf2f6;font-family:system-ui,-apple-system,"Segoe UI",sans-serif;font-synthesis:none}
*{box-sizing:border-box}body{margin:0;background:var(--background);color:var(--text);line-height:1.65}a{color:var(--accent);text-underline-offset:4px}a:focus-visible{outline:3px solid var(--accent);outline-offset:5px;border-radius:3px}.shell{width:min(1040px,calc(100% - 40px));margin-inline:auto}.topbar{display:flex;align-items:center;justify-content:space-between;gap:24px;padding-block:24px;border-bottom:1px solid var(--line)}.brand{text-decoration:none;color:var(--text);font-size:23px;font-weight:800;letter-spacing:-.8px;white-space:nowrap}.brand span{color:var(--live)}.brand small{font-size:13px;font-weight:600;letter-spacing:0;color:var(--muted);margin-left:8px}nav{display:flex;gap:22px;font-size:14px}nav a{text-decoration:none;color:var(--muted)}nav a:hover,nav a[aria-current]{color:var(--accent)}.hero{padding:72px 0 56px;max-width:800px}.eyebrow{text-transform:uppercase;font-size:12px;letter-spacing:1.8px;font-weight:700;color:var(--accent);margin:0 0 14px}h1{font-size:clamp(34px,5.5vw,58px);letter-spacing:-1.8px;line-height:1.12;margin:0 0 24px}.lead{font-size:18px;max-width:760px;color:var(--muted);margin:0 0 28px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:10px 20px;background:var(--accent);color:var(--surface);text-decoration:none;font-weight:650;font-size:14px;border-radius:10px}.button:hover{filter:brightness(1.1)}.button:active{filter:brightness(.92)}.features{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.features article{padding:26px;background:var(--surface);border:1px solid var(--line);border-radius:16px}.step{display:block;color:var(--accent);font-size:13px;font-weight:700;margin-bottom:18px}h2{font-size:19px;line-height:1.35;letter-spacing:-.3px;margin:0 0 12px}p{margin:0 0 16px}.features p{color:var(--muted);font-size:15px;margin:0}.notice{margin:32px 0 48px;padding:28px;border-radius:16px;background:var(--soft)}.notice p{max-width:900px;color:var(--muted)}.notice p:last-child{margin:0}code{overflow-wrap:anywhere;font-size:.88em}.document{max-width:800px;padding-block:52px}.document h1{font-size:clamp(32px,4vw,44px)}.document section{margin-top:32px}.document section p{color:var(--muted)}footer{display:flex;justify-content:space-between;gap:24px;padding-block:24px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}footer p{margin:0}footer a{color:inherit}
@media(prefers-color-scheme:dark){:root{--background:#10171e;--surface:#18232d;--text:#e9f1f6;--muted:#b2c1ce;--line:#2b3c4b;--accent:#8ac9ef;--live:#ff536b;--soft:#172a38}.button{color:#10212e}}
@media(max-width:700px){.topbar{align-items:flex-start;flex-direction:column;gap:12px;padding-block:18px}nav{gap:20px}.hero{padding:44px 0 32px}.features{grid-template-columns:1fr}.features article{padding:22px}.step{margin-bottom:10px}.notice{padding:22px}.document{padding-block:34px}footer{flex-direction:column;gap:8px}}