:root{color-scheme:dark;--bg:#080a12;--surface:#141827;--text:#f5f7ff;--muted:#a7aec5;--cyan:#65e7ef;--purple:#b4a1ff;--line:#ffffff18;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.75;background:var(--bg);color:var(--text)}
*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 95% 0,#33295870,transparent 45rem),radial-gradient(ellipse at 0 45%,#124d5540,transparent 40rem)}a{color:var(--cyan);text-underline-offset:4px;overflow-wrap:anywhere}a:hover{color:white}a:focus-visible{outline:3px solid var(--cyan);outline-offset:5px}.skip{position:absolute;top:-100px;padding:12px;background:var(--surface)}.skip:focus{top:8px;z-index:5}header,main,footer{width:min(1120px,calc(100% - 48px));margin:auto}header{padding:24px 0;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;font-weight:750;letter-spacing:.06em;text-decoration:none;color:var(--text)}.brand img{border-radius:12px}.brand small{display:block;font-weight:400;font-size:.75rem;color:var(--muted);letter-spacing:0}nav{display:flex;flex-wrap:wrap;gap:20px}nav a{color:var(--muted);font-size:.875rem;text-decoration:none}nav a[aria-current]{color:var(--cyan)}main{padding:48px 0 64px}.eyebrow{font-size:.75rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--cyan)}h1{font-size:clamp(2.6rem,6vw,4.8rem);line-height:1.08;letter-spacing:-.055em;margin:16px 0 24px}h2{font-size:1.5rem;line-height:1.3;letter-spacing:-.025em;margin:0 0 14px}p,li{color:var(--muted)}p{margin:12px 0}strong{color:var(--text)}.hero{padding:clamp(24px,5vw,52px);border:1px solid var(--line);border-radius:28px;background:linear-gradient(135deg,#1a2036aa,#121522);position:relative;overflow:hidden}.hero.home{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(220px,.75fr);gap:48px;align-items:center}.hero .lead{font-size:1.12rem;max-width:650px}.pills{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}.pill{padding:5px 12px;border:1px solid #65e7ef30;border-radius:30px;font-size:.75rem;color:var(--cyan);background:#65e7ef0c}.board{aspect-ratio:1;display:grid;grid-template-columns:repeat(3,1fr);gap:8px;padding:12px;border:1px solid #65e7ef55;border-radius:28px;background:#080a1280;transform:rotate(-7deg);box-shadow:0 0 80px #65e7ef10}.cell{display:grid;place-items:center;aspect-ratio:1;border:1px solid #65e7ef20;background:#65e7ef08;border-radius:16px;font-size:clamp(2rem,5vw,4rem);font-weight:350;color:var(--cyan);text-shadow:0 0 18px #65e7ef70}.cell.o{color:#ff9bbd;text-shadow:0 0 18px #ff9bbd60}.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}.actions a{padding:10px 18px;border:1px solid #65e7ef50;border-radius:12px;text-decoration:none;font-size:.875rem}.actions a:first-child{background:var(--cyan);color:#080a12;font-weight:700}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin:24px 0}.card{border:1px solid var(--line);border-radius:22px;padding:26px;background:#141827a0}.card .number{font-size:.75rem;color:var(--purple);letter-spacing:.12em}.card h2{margin-top:16px}.card p{font-size:.9375rem}.document-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:32px;margin-top:32px}.toc{position:sticky;top:24px;align-self:start;padding:22px;border:1px solid var(--line);border-radius:20px;background:#14182780}.toc h2{font-size:1rem}.toc ol{padding-left:18px;font-size:.8125rem}.toc li{margin:10px 0}.toc a{color:var(--muted)}article{border:1px solid var(--line);border-radius:24px;background:#11152390}section{padding:30px}section+section{border-top:1px solid var(--line)}section[id]{scroll-margin-top:24px}section .number{display:block;color:var(--purple);font-size:.75rem;letter-spacing:.12em;margin-bottom:12px}section ul{padding-left:20px}section li{margin:8px 0}.notice{padding:18px 20px;background:#65e7ef0a;border:1px solid #65e7ef33;border-radius:16px;margin-top:18px}.full{margin-top:24px}footer{border-top:1px solid var(--line);padding:24px 0 40px;font-size:.8125rem;color:var(--muted)}footer .links{display:flex;flex-wrap:wrap;gap:20px}footer p{margin-top:18px}@media(max-width:800px){.hero.home{grid-template-columns:minmax(0,1fr);gap:30px}.board{width:min(280px,100%);margin:auto}.grid{grid-template-columns:minmax(0,1fr)}.document-layout{grid-template-columns:minmax(0,1fr)}.toc{position:static}.toc ol{display:flex;gap:12px 24px;flex-wrap:wrap}.toc li{margin:0}}@media(max-width:500px){header,main,footer{width:calc(100% - 28px)}header{padding:18px 0;gap:16px}nav{gap:16px}main{padding-top:24px}.hero{border-radius:22px;padding:24px}section{padding:24px 20px}.hero.home h1{font-size:3rem}.board{width:220px}.cell{font-size:2.75rem}h2{font-size:1.3rem}}