:root{--blue:#0b5fff;--blue2:#0a4fd6;--ink:#1f2329;--mut:#5f6773;--line:#e3e7ee;--bg:#f6f8fc;--card:#fff;--warn:#fff6e0;--warnb:#f0c36a;--err:#c0262d;--r:12px}
@media (prefers-color-scheme:dark){:root{--ink:#e8ecf3;--mut:#9aa4b2;--line:#2a3140;--bg:#0f131a;--card:#171c26;--warn:#2b2412;--warnb:#7a5f1c}}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
a{color:var(--blue)}a:hover{color:var(--blue2)}img{max-width:100%;height:auto}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
.top{background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.bar{display:flex;align-items:center;gap:18px;min-height:60px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:22px;letter-spacing:-.5px;color:var(--ink);text-decoration:none}
.brand b{color:var(--blue)}.brand img{border-radius:4px}
nav.main{display:flex;gap:2px;flex:1;flex-wrap:wrap}
nav.main a,.acct a,button.link{color:var(--ink);text-decoration:none;padding:8px 11px;border-radius:8px;font-size:15px}
nav.main a:hover,.acct a:hover{background:var(--bg)}nav.main a.on{color:var(--blue);font-weight:600}
.acct{display:flex;align-items:center;gap:6px}.acct .user{font-weight:600}
.burger{display:none;background:none;border:1px solid var(--line);color:var(--ink);border-radius:8px;font-size:20px;padding:4px 10px;margin-left:auto;cursor:pointer}
button.link{background:none;border:0;cursor:pointer;font:inherit;color:var(--mut)}button.link.danger{color:var(--err)}
form.inline{display:inline;margin:0}
.btn{display:inline-block;background:var(--blue);color:#fff;border:0;border-radius:10px;padding:11px 20px;font:600 15px system-ui,sans-serif;text-decoration:none;cursor:pointer}
.btn:hover{background:var(--blue2);color:#fff}.btn.small{padding:6px 14px;font-size:14px}
.btn.ghost{background:transparent;color:var(--blue);border:1.5px solid var(--blue)}.btn.ghost:hover{background:var(--blue);color:#fff}
main.wrap{padding:30px 20px 60px}
h1{font-size:clamp(28px,4vw,40px);line-height:1.15;letter-spacing:-.8px;margin:0 0 12px}h2{font-size:22px;margin:28px 0 12px}h3{margin:0 0 8px}
.mut{color:var(--mut);font-size:14px}.lead{font-size:19px;color:var(--mut);max-width:62ch}
.hero{display:grid;grid-template-columns:1.15fr .85fr;gap:32px;align-items:center;padding:20px 0 34px}
.hero-art{text-align:center}.hero-art img{border-radius:24px;background:#fff;box-shadow:0 10px 40px rgba(11,95,255,.12)}
.eyebrow{color:var(--blue);font-weight:700;letter-spacing:.06em;text-transform:uppercase;font-size:13px;margin:0 0 8px}
.cta{display:flex;gap:10px;flex-wrap:wrap;margin:22px 0}
.chips{list-style:none;padding:0;margin:0;display:flex;gap:8px;flex-wrap:wrap}.chips li{background:var(--card);border:1px solid var(--line);border-radius:99px;padding:4px 12px;font-size:13px;color:var(--mut)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:22px;margin:0 0 18px}.card.flush{padding:0;overflow-x:auto}
.card.narrow{max-width:460px;margin:20px auto}.card.narrow.wide{max-width:720px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:18px}.grid3 .card{margin:0}
.cols{display:grid;grid-template-columns:1.4fr 1fr;gap:18px;align-items:start}
.list{list-style:none;margin:0 0 8px;padding:0}.list li{display:flex;flex-direction:column;padding:10px 0;border-bottom:1px solid var(--line)}.list li:last-child{border:0}
.list li span{color:var(--mut);font-size:13px}
.catlist{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(2,1fr);gap:0 24px}
.catlist li{display:flex;justify-content:space-between;gap:12px;padding:12px 0;border-bottom:1px solid var(--line)}
.catlist a{text-decoration:none;color:var(--ink);display:flex;flex-direction:column}.catlist a span{color:var(--mut);font-size:13px}.catlist em{color:var(--mut);font-size:13px;font-style:normal;white-space:nowrap}
.stats{display:flex;gap:24px}.stats b{display:block;font-size:28px;color:var(--blue)}.stats span{color:var(--mut);font-size:13px}
.notice{background:var(--card);border:1px solid var(--line);border-left:4px solid var(--blue);border-radius:10px;padding:14px 18px;margin:18px 0}
.notice.warn{background:var(--warn);border-color:var(--warnb);border-left-color:#e0a100}
table{border-collapse:collapse;width:100%}th,td{text-align:left;padding:12px 16px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-size:13px;color:var(--mut);text-transform:uppercase;letter-spacing:.04em;background:var(--bg)}td.num,th.num{text-align:center;width:80px}
table.forum a.ct{font-weight:600;text-decoration:none;font-size:17px}.lastc{font-size:14px;min-width:150px}
table.spec td:first-child{font-weight:600;width:22%;white-space:nowrap}table.plain td{border:0;padding:6px 14px 6px 0}
.pagehead{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;flex-wrap:wrap;margin-bottom:16px}
.crumbs{font-size:14px;color:var(--mut);margin-bottom:10px}.crumbs a{color:var(--mut)}
.tag{display:inline-block;background:var(--blue);color:#fff;border-radius:6px;font-size:11px;font-weight:700;padding:1px 7px;vertical-align:middle;text-transform:uppercase;letter-spacing:.04em}
.pager{display:flex;gap:6px;margin:14px 0}.pager a{padding:4px 11px;border:1px solid var(--line);border-radius:8px;text-decoration:none;background:var(--card)}.pager a.on{background:var(--blue);color:#fff;border-color:var(--blue)}
.post{display:grid;grid-template-columns:170px 1fr;background:var(--card);border:1px solid var(--line);border-radius:var(--r);margin-bottom:14px;overflow:hidden}
.post aside{background:var(--bg);padding:16px;display:flex;flex-direction:column;gap:4px;border-right:1px solid var(--line);font-size:14px;word-break:break-word}
.post .pn{font-weight:700;text-decoration:none;font-size:16px}.pb{padding:16px 20px;min-width:0}.pm{display:flex;justify-content:space-between;gap:10px;font-size:13px;color:var(--mut);margin-bottom:10px}.pm a{color:var(--mut)}
.txt{overflow-wrap:anywhere}.txt .q{display:inline-block;border-left:3px solid var(--line);padding-left:10px;color:var(--mut)}
pre{background:#0f1520;color:#e6edf7;padding:14px;border-radius:10px;overflow-x:auto;font-size:13.5px;line-height:1.5}code{background:var(--bg);padding:1px 5px;border-radius:5px;font-size:.92em}pre code{background:none;padding:0}
form label{display:block;font-weight:600;font-size:14px;margin:0 0 14px}
input,textarea{display:block;width:100%;margin-top:6px;padding:10px 12px;border:1px solid var(--line);border-radius:9px;background:var(--bg);color:var(--ink);font:16px system-ui,sans-serif}
input:focus,textarea:focus{outline:2px solid var(--blue);outline-offset:1px}textarea{resize:vertical}
.err{color:var(--err);font-weight:600;background:rgba(192,38,45,.08);padding:10px 12px;border-radius:8px}
.hp{position:absolute;left:-9999px;height:0;overflow:hidden}
.search{display:flex;gap:8px}.search input{margin:0;min-width:220px}.search.big{margin-bottom:18px}
.modbar{display:flex;gap:6px;flex-wrap:wrap}
.doc{max-width:820px}.doc h2{margin-top:34px;padding-top:6px}.doc li{margin:5px 0}
.toc{display:flex;flex-direction:column;gap:4px;font-size:15px}.toc strong{margin-bottom:4px}
details.card summary{cursor:pointer;font-weight:600}details.card p{margin:10px 0 0}
.card.done{opacity:.6}
footer{border-top:1px solid var(--line);background:var(--card);padding:26px 0;font-size:14px}.foot{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
.flinks{display:flex;gap:16px;flex-wrap:wrap}.flinks a{color:var(--mut)}
@media(max-width:820px){.hero,.cols,.grid3{grid-template-columns:1fr}.hero-art{order:-1}.hero-art img{width:240px;height:240px}.catlist{grid-template-columns:1fr}
.post{grid-template-columns:1fr}.post aside{border-right:0;border-bottom:1px solid var(--line);flex-direction:row;flex-wrap:wrap;align-items:center;gap:10px}
.burger{display:block}nav.main,.acct{display:none;width:100%}body.menu nav.main,body.menu .acct{display:flex}nav.main{flex-direction:column}.acct{flex-wrap:wrap;padding-bottom:10px}
table.spec td:first-child{white-space:normal}th,td{padding:10px}table.forum .num,table.forum .lastc{display:none}}

.docs{display:grid;grid-template-columns:230px minmax(0,1fr);gap:34px;align-items:start}
.docnav{position:sticky;top:76px;display:flex;flex-direction:column;gap:2px;font-size:15px}
.docnav a{padding:7px 12px;border-radius:8px;color:var(--ink);text-decoration:none}.docnav a:hover{background:var(--card)}
.docnav a.on{background:var(--card);color:var(--blue);font-weight:600;border:1px solid var(--line)}
.docnav a.all{color:var(--mut);font-size:13px;text-transform:uppercase;letter-spacing:.05em}
.doccol{min-width:0;max-width:820px}.doccol .doc{max-width:none}
.doccard{display:block;text-decoration:none;color:var(--ink);margin:0}.doccard:hover{border-color:var(--blue)}.doccard h3{color:var(--blue)}.doccard p{margin:0}
.docgrid{margin-top:8px}.docgrid .doccard{margin:0}
.docnext{margin:30px 0 8px}.docnext a{display:inline-block;padding:10px 16px;border:1px solid var(--line);border-radius:10px;background:var(--card);text-decoration:none;font-weight:600}
.docfoot{margin-top:24px;border-top:1px solid var(--line);padding-top:14px}
@media(max-width:820px){.docs{grid-template-columns:1fr}.docnav{position:static;flex-direction:row;flex-wrap:wrap;gap:6px}.docnav a{border:1px solid var(--line);background:var(--card)}}

.demo{display:grid;grid-template-columns:1fr auto;gap:34px;align-items:center}
.demo video{display:block;width:min(320px,100%);height:auto;border-radius:14px;background:#000;justify-self:center}
.demo h2{margin-top:0}
@media(max-width:820px){.demo{grid-template-columns:1fr}.demo video{justify-self:start}}