:root{
  --accent:#0A5FD6;--accent-hover:#084BAA;--accent-tint:#E6EFFC;
  --bg:#F5F5F7;--surface:#fff;--ink:#1D1D1F;--body:#4A4A50;--muted:#5C5C63;
  --hair:#E2E2E7;--line:#D2D2D7;--skel:#E8E8ED;--sel:#CFE0FB;--quote:rgba(0,0,0,.05);
  --keyshadow:#C7C7CC;--danger:#B3261E;--ok:#1B6B3C;--shadow:rgba(20,20,40,.12);
  --font:-apple-system,BlinkMacSystemFont,"SF Pro Text","Helvetica Neue",sans-serif;
}
@media (prefers-color-scheme:dark){:root{
  --accent:#4C9AFF;--accent-hover:#7AB4FF;--accent-tint:#16304F;
  --bg:#1C1C1E;--surface:#2C2C2E;--ink:#F5F5F7;--body:#C7C7CC;--muted:#A1A1A8;
  --hair:#3A3A3C;--line:#48484A;--skel:#3A3A3C;--sel:#1F4377;--quote:rgba(255,255,255,.08);
  --keyshadow:#1C1C1E;--danger:#FF6B62;--ok:#34C759;--shadow:rgba(0,0,0,.4);
}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);-webkit-font-smoothing:antialiased;line-height:1.5}
a{color:var(--accent)}a:hover{color:var(--accent-hover)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
img{display:block}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}

/* nav */
.nav{display:flex;flex-wrap:wrap;align-items:center;gap:16px 32px;padding-top:20px;padding-bottom:20px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-size:17px;font-weight:700}
.brand img{border-radius:8px}
.nav-links{display:flex;flex-wrap:wrap;gap:8px 28px;margin-left:auto;align-items:center}
.nav-links a.l{color:var(--body);text-decoration:none;font-size:15px}
.nav-links a.l:hover,.nav-links a.l[aria-current]{color:var(--accent)}
.nav-links a.l[aria-current]{font-weight:600}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:12px;background:var(--accent);color:#fff;font-size:16px;font-weight:600;text-decoration:none;border:0}
.btn:hover{background:var(--accent-hover);color:#fff}
.btn.sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px}
.btn.ghost{background:var(--surface);color:var(--ink);border:1px solid var(--line)}
.btn.ghost:hover{background:var(--bg);color:var(--ink)}
.btn.light{background:#fff;color:#084BAA}
.btn.light:hover{background:#F0F5FD;color:#084BAA}

/* keycaps */
.kc{display:inline-flex;align-items:center;justify-content:center;min-width:34px;height:34px;padding:0 8px;border-radius:9px;background:var(--surface);border:1px solid var(--line);box-shadow:0 2px 0 var(--keyshadow);font-size:17px;font-weight:600;color:var(--ink)}
.kc.sm{min-width:24px;height:24px;border-radius:6px;font-size:13px;padding:0 5px;box-shadow:0 1.5px 0 var(--keyshadow)}
.keys{display:flex;gap:6px}

/* hero */
.hero{display:flex;flex-wrap:wrap;align-items:center;gap:56px;padding-top:48px;padding-bottom:72px}
.hero-text{flex:1 1 420px;min-width:0;display:flex;flex-direction:column;gap:24px}
.eyebrow{font-size:14px;font-weight:600;color:var(--accent);letter-spacing:.02em}
h1{margin:0;font-size:58px;line-height:1.05;letter-spacing:-.025em;font-weight:700}
h2{margin:0;font-size:40px;line-height:1.1;letter-spacing:-.02em}
.lede{margin:0;font-size:20px;line-height:1.5;color:var(--body);max-width:520px}
.sublede{margin:0;font-size:18px;line-height:1.55;color:var(--body)}
.row{display:flex;flex-wrap:wrap;align-items:center;gap:16px}
.fine{display:flex;flex-wrap:wrap;gap:12px;font-size:14px;color:var(--muted)}
.fine a{color:var(--muted)}
.stage{flex:1 1 480px;min-width:0;display:flex;flex-direction:column;gap:14px}
.doc{background:var(--surface);border:1px solid var(--hair);border-radius:18px;padding:28px 28px 20px;box-shadow:0 20px 50px var(--shadow);display:flex;flex-direction:column;gap:18px}
.lights{display:flex;gap:7px}
.lights i{width:11px;height:11px;border-radius:50%;display:block}
.lights i:nth-child(1){background:#FF5F57}.lights i:nth-child(2){background:#FEBC2E}.lights i:nth-child(3){background:#28C840}
.doc p{margin:0;font-size:17px;line-height:1.65;color:var(--body)}
mark{background:var(--sel);color:var(--ink);border-radius:4px;padding:1px 3px}

/* panel (mirrors the app's floating panel) */
.panel{width:100%;max-width:440px;margin-left:auto;background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:0 18px 40px var(--shadow);overflow:hidden}
.p-head{display:flex;align-items:center;gap:8px;padding:12px 12px 10px 16px;font-size:13px;font-weight:600}
.p-head img{border-radius:6px}
.p-head svg{margin-left:auto;margin-right:9px;color:var(--muted)}
.p-quote{margin:0 16px;padding:10px 12px;border-radius:10px;background:var(--quote)}
.p-quote b{display:block;font-size:11px;font-weight:600;letter-spacing:.04em;color:var(--muted);margin-bottom:4px}
.p-quote span{font-size:13px}
.p-body{padding:18px 20px 14px;display:flex;flex-direction:column;gap:10px;min-height:154px}
.p-body p{margin:0;font-size:13px;line-height:1.55;color:var(--body)}
.p-body p.lead{font-size:15px;line-height:1.45;font-weight:600;color:var(--ink)}
.p-body.loading{padding-top:22px;gap:12px}
.sk{height:16px;border-radius:6px;background:var(--skel);animation:sk 1.6s ease-in-out infinite}
.sk.s{height:12px}
@keyframes sk{0%{opacity:.5}50%{opacity:1}100%{opacity:.5}}
@media (prefers-reduced-motion:reduce){.sk{animation:none}html{scroll-behavior:auto}}
.p-body.error{flex-direction:row;gap:14px;align-items:flex-start;padding-top:22px}
.p-err-ic{width:32px;height:32px;border-radius:50%;background:rgba(179,38,30,.14);color:var(--danger);display:flex;align-items:center;justify-content:center;flex:none}
.p-err-t{font-size:15px;font-weight:600}
.p-err-d{font-size:13px;line-height:1.5;color:var(--muted)}
.p-foot{display:flex;align-items:center;gap:8px;padding:10px 12px 10px 16px;min-height:50px;border-top:1px solid var(--hair);background:rgba(128,128,128,.06);font-size:12px;color:var(--muted)}
.p-foot .end{margin-left:auto}
.dot{width:8px;height:8px;border-radius:50%;background:var(--accent)}
.pb{display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 12px;border-radius:8px;background:var(--surface);border:1px solid var(--line);font-size:13px;font-weight:500;color:var(--ink)}
.pb.pri{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600;padding:0 14px}
.pq{font-size:13px;color:var(--body);padding:0 6px}
.tabs{display:flex;gap:8px;justify-content:center;flex-wrap:wrap}
.tab{font:inherit;font-size:13px;font-weight:500;cursor:pointer;padding:7px 16px;min-height:36px;border-radius:999px;border:1px solid var(--line);background:var(--surface);color:var(--ink)}
.tab[aria-pressed="true"]{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}
[hidden]{display:none!important}

/* sections */
.band{background:var(--surface);border-top:1px solid var(--hair);border-bottom:1px solid var(--hair)}
.section{padding-top:88px;padding-bottom:88px;display:flex;flex-direction:column;gap:48px}
.head{display:flex;flex-direction:column;gap:12px;max-width:680px}
.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.card{background:var(--bg);border-radius:16px;padding:28px;display:flex;flex-direction:column;gap:14px}
.card.w{background:var(--surface);border:1px solid var(--hair);padding:32px;gap:10px}
.card .n{font-size:13px;font-weight:700;color:var(--accent)}
.card h3{margin:0;font-size:22px}
.card.w h3{font-size:20px}
.card p{margin:0;font-size:16px;line-height:1.55;color:var(--body)}
.seg{display:flex;border:1px solid var(--line);border-radius:9px;overflow:hidden;background:var(--surface);font-size:13px;text-align:center;width:fit-content}
.seg span{padding:6px 16px}
.seg .on{background:var(--accent);color:#fff;font-weight:600}
.split{display:flex;flex-wrap:wrap;align-items:center;gap:56px;padding-top:88px;padding-bottom:88px}
.split>div{flex:1 1 420px;min-width:0;display:flex;flex-direction:column;gap:20px}
.plist{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:12px;font-size:16px}
.plist span{color:var(--muted)}
.settings{width:100%;max-width:480px;margin:0 auto;background:var(--bg);border:1px solid var(--line);border-radius:14px;box-shadow:0 20px 50px var(--shadow);overflow:hidden}
.s-bar{display:flex;align-items:center;gap:7px;padding:14px 16px}
.s-bar b{margin:0 auto;padding-right:40px;font-size:13px;font-weight:600;color:var(--body)}
.s-body{padding:4px 24px 24px;display:flex;flex-direction:column;gap:16px}
.s-lab{font-size:12px;font-weight:600;color:var(--muted);padding:0 4px 6px}
.seg.full{width:100%}.seg.full span{flex:1;padding:7px 0}
.seg.full span+span{border-left:1px solid var(--hair)}
.seg.full .soft{background:var(--accent-tint);color:var(--accent);font-weight:600}
.group{background:var(--surface);border:1px solid var(--hair);border-radius:10px}
.grow{display:flex;align-items:center;justify-content:space-between;padding:0 14px;min-height:46px;font-size:14px}
.grow+.grow{border-top:1px solid var(--hair);margin-left:14px;padding-left:0;padding-right:14px}
.grow small{font-size:13px;color:var(--muted)}
.ok{display:flex;align-items:center;gap:7px;color:var(--ok);font-size:13px}
.ok i{width:8px;height:8px;border-radius:50%;background:#34C759;display:block}
.pillars{border-top:2px solid var(--ink);padding-top:16px;display:flex;flex-direction:column;gap:8px}
.pillars h3{margin:0;font-size:18px}.pillars p{margin:0;font-size:15px;color:var(--body)}
.cta{background:var(--accent);border-radius:24px;padding:64px 32px;display:flex;flex-direction:column;align-items:center;gap:20px;text-align:center;margin-bottom:88px}
.cta img{border-radius:16px}.cta h2{color:#fff}.cta p{margin:0;font-size:18px;color:#E3EDFC}
footer{border-top:1px solid var(--hair);padding:28px 24px;display:flex;flex-wrap:wrap;justify-content:center;gap:10px 24px;font-size:14px;color:var(--muted)}
footer a{color:var(--muted)}footer a:hover{color:var(--accent)}

/* versions */
.narrow{max-width:760px;margin:0 auto;padding:48px 24px 88px;display:flex;flex-direction:column;gap:20px}
.narrow>.title{display:flex;flex-direction:column;gap:10px;margin-bottom:12px}
h1.page{font-size:44px;line-height:1.1}
.rel{background:var(--surface);border:1px solid var(--hair);border-radius:16px;padding:24px 28px;display:flex;flex-direction:column;gap:12px}
.rel.latest{border-color:var(--accent);padding:28px;gap:16px}
.rel-h{display:flex;flex-wrap:wrap;align-items:baseline;gap:12px}
.rel-h b{font-size:20px}.rel.latest .rel-h b{font-size:24px}
.rel-h time{margin-left:auto;font-size:14px;color:var(--muted)}
.badge{font-size:12px;font-weight:600;padding:3px 10px;border-radius:999px;background:var(--accent-tint);color:var(--accent)}
.rel h4{margin:0;font-size:12px;font-weight:600;letter-spacing:.04em;color:var(--muted)}
.rel ul{margin:0;padding-left:20px;display:flex;flex-direction:column;gap:8px;font-size:15px;color:var(--body)}
.rel.latest ul{font-size:16px}

/* legal */
.legal{max-width:760px;margin:0 auto;padding:48px 24px 88px}
.legal .title{margin-bottom:32px}
.legal .title p{margin:10px 0 0;font-size:18px;color:var(--body)}
.legal .upd{font-size:14px;color:var(--muted);margin:0 0 8px}
.legal h2{font-size:24px;letter-spacing:-.01em;margin:40px 0 12px}
.legal p,.legal li{font-size:16px;line-height:1.65;color:var(--body)}
.legal p{margin:0 0 14px}
.legal ul{margin:0 0 14px;padding-left:22px}
.legal code{font-size:14px;background:var(--quote);padding:2px 6px;border-radius:5px}
.legal strong{color:var(--ink)}
.callout{background:var(--surface);border:1px solid var(--hair);border-radius:16px;padding:24px 28px;margin-bottom:8px}
.callout h2{margin:0 0 10px;font-size:20px}.callout p:last-child{margin:0}

@media (max-width:760px){
  h1{font-size:40px}h2{font-size:30px}
  .hero{padding-top:24px;padding-bottom:48px;gap:36px}
  .grid3,.grid2{grid-template-columns:minmax(0,1fr)}
  .section,.split{padding-top:56px;padding-bottom:56px}
  .doc{padding:20px}
  h1.page{font-size:34px}
}

/* hero demo animation */
.d-text{min-height:112px}
.d-text.code{font-family:ui-monospace,"SF Mono",Menlo,monospace;font-size:15px;line-height:1.7;white-space:pre-wrap;background:var(--quote);border-radius:10px;padding:14px 16px}
.d-text mark{background:linear-gradient(var(--sel),var(--sel)) 0 0/0% 100% no-repeat;transition:background-size .9s ease-out}
.d-text mark.on{background-size:100% 100%}
.d-text,.panel{transition:opacity .35s ease,transform .35s ease}
.d-text.out{opacity:0}
.panel.off{opacity:0;transform:translateY(8px)}
.tab.ghost{border-style:dashed;color:var(--muted)}
@media (prefers-reduced-motion:reduce){.d-text mark{transition:none}.d-text,.panel{transition:none}}
.tab.ghost[aria-pressed="true"]{background:var(--surface);border-color:var(--line);color:var(--muted);font-weight:500}

/* fixed-size demo so the hero never changes height between examples */
.d-text{height:120px;min-height:0;overflow:hidden}
.d-text.code{height:120px}
.p-quote{height:84px;overflow:hidden}
.p-quote span{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.5}
.p-body{height:156px;min-height:0;overflow:hidden}
@media (max-width:760px){.d-text,.d-text.code{height:170px}.p-body{height:176px}}

/* faq */
.faq-list{max-width:760px;display:flex;flex-direction:column;gap:12px}
.faq{background:var(--bg);border:1px solid var(--hair);border-radius:14px}
.faq summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;min-height:56px;font-size:17px;font-weight:600;color:var(--ink);border-radius:14px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";flex:none;width:8px;height:8px;border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);transform:rotate(45deg) translateY(-2px);transition:transform .2s ease}
.faq[open] summary::after{transform:rotate(-135deg) translateY(-2px)}
.faq[open]{border-color:var(--line)}
.faq-a{padding:0 22px 20px}
.faq-a p{margin:0;font-size:16px;line-height:1.6;color:var(--body)}
@media (prefers-reduced-motion:reduce){.faq summary::after{transition:none}}