/* Vaelis Docs — design system. Pure CSS, no external requests. Light + dark themes. */
:root{
  --font:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Inter,Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,"SF Mono","JetBrains Mono",Menlo,Consolas,"Liberation Mono",monospace;
  --topbar:60px;--sidebar:284px;--toc:216px;--radius:12px;--radius-sm:8px;
  --ease:cubic-bezier(.2,.7,.2,1);
}
:root,[data-theme=dark]{
  color-scheme:dark;
  --bg:#0a0c11;--bg-elev:#0f1219;--surface:#131720;--surface-2:#191e29;--surface-3:#212736;
  --border:#232a38;--border-strong:#2f384b;
  --text:#e8ecf4;--text-2:#b4bdcd;--text-3:#7f8aa0;
  --accent:#7cd4ff;--accent-2:#a78bfa;--accent-ink:#04121b;--accent-soft:rgba(124,212,255,.12);--accent-line:rgba(124,212,255,.4);
  --good:#5eead4;--good-soft:rgba(94,234,212,.11);--warn:#fbbf24;--warn-soft:rgba(251,191,36,.10);--bad:#fb7185;--bad-soft:rgba(251,113,133,.10);--info:#7cd4ff;--info-soft:rgba(124,212,255,.09);
  --code-bg:#0d1017;--code-head:#121620;--shadow:0 24px 70px -20px rgba(0,0,0,.65);--glow:radial-gradient(60% 60% at 50% 0%,rgba(124,212,255,.16),transparent 70%);
  --tok-k:#c4a7ff;--tok-s:#8be9b8;--tok-n:#ffb86b;--tok-c:#6b768c;--tok-f:#7cd4ff;--tok-o:#9aa6bd;--tok-b:#ff8fab;--tok-p:#8590a6;
}
[data-theme=light]{
  color-scheme:light;
  --bg:#ffffff;--bg-elev:#f8fafc;--surface:#f4f6fa;--surface-2:#eceff5;--surface-3:#e2e7f0;
  --border:#e3e8f0;--border-strong:#cdd5e2;
  --text:#0f172a;--text-2:#3b475c;--text-3:#68758c;
  --accent:#0369a1;--accent-2:#6d4aff;--accent-ink:#ffffff;--accent-soft:rgba(3,105,161,.08);--accent-line:rgba(3,105,161,.35);
  --good:#0f766e;--good-soft:rgba(15,118,110,.08);--warn:#a16207;--warn-soft:rgba(202,138,4,.10);--bad:#be123c;--bad-soft:rgba(190,18,60,.07);--info:#0369a1;--info-soft:rgba(3,105,161,.07);
  --code-bg:#f6f8fb;--code-head:#eef1f6;--shadow:0 24px 60px -24px rgba(15,23,42,.25);--glow:radial-gradient(60% 60% at 50% 0%,rgba(3,105,161,.10),transparent 70%);
  --tok-k:#7c3aed;--tok-s:#047857;--tok-n:#b45309;--tok-c:#8a94a8;--tok-f:#0369a1;--tok-o:#475569;--tok-b:#be185d;--tok-p:#64748b;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--topbar) + 20px)}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.7 var(--font);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img,svg{max-width:100%}
a{color:var(--accent);text-decoration:none;text-underline-offset:3px}
a:hover{text-decoration:underline}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
::selection{background:var(--accent-soft);color:var(--text)}
.skip{position:absolute;left:12px;top:-60px;z-index:100;background:var(--accent);color:var(--accent-ink);padding:10px 14px;border-radius:8px;font-weight:600}
.skip:focus{top:12px;text-decoration:none}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.icon{width:1em;height:1em;flex:none;stroke:currentColor;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;vertical-align:-.14em}

/* progress bar (client navigation) */
#nav-progress{position:fixed;top:0;left:0;height:2px;width:0;z-index:90;background:linear-gradient(90deg,var(--accent),var(--accent-2));opacity:0;transition:width .3s var(--ease),opacity .2s}

/* ---------- Topbar ---------- */
.topbar{position:sticky;top:0;z-index:50;height:var(--topbar);background:color-mix(in srgb,var(--bg) 82%,transparent);backdrop-filter:saturate(1.6) blur(14px);-webkit-backdrop-filter:saturate(1.6) blur(14px);border-bottom:1px solid var(--border)}
.topbar-inner{max-width:1560px;height:100%;margin:0 auto;padding:0 20px;display:flex;align-items:center;gap:18px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:750;letter-spacing:-.02em;font-size:18px}
.brand:hover{text-decoration:none}
.brand svg{width:30px;height:30px;flex:none}
.brand small{font-weight:600;font-size:12px;color:var(--text-3);padding:2px 8px;border:1px solid var(--border);border-radius:999px;letter-spacing:0}
.topnav{display:flex;gap:2px;margin-left:8px}
.topnav a{color:var(--text-2);font-size:14px;font-weight:550;padding:7px 12px;border-radius:8px}
.topnav a:hover{background:var(--surface);color:var(--text);text-decoration:none}
.topnav a[aria-current=true]{color:var(--text);background:var(--surface-2)}
.top-spacer{flex:1}
.search-btn{display:flex;align-items:center;gap:10px;min-width:260px;padding:8px 10px 8px 12px;border:1px solid var(--border);background:var(--surface);color:var(--text-3);border-radius:10px;font:inherit;font-size:14px;cursor:pointer;transition:border-color .15s,background .15s}
.search-btn:hover{border-color:var(--border-strong);background:var(--surface-2);color:var(--text-2)}
.search-btn span{flex:1;text-align:left}
kbd,.kbd{font:600 11px/1 var(--mono);padding:4px 6px;border-radius:6px;border:1px solid var(--border-strong);background:var(--surface-2);color:var(--text-2);box-shadow:0 1px 0 var(--border-strong)}
.icon-btn{display:grid;place-items:center;width:38px;height:38px;border:1px solid transparent;background:transparent;color:var(--text-2);border-radius:10px;cursor:pointer}
.icon-btn:hover{background:var(--surface);color:var(--text);border-color:var(--border)}
.icon-btn .icon{width:18px;height:18px}
[data-theme=dark] .i-sun{display:block}[data-theme=dark] .i-moon{display:none}
[data-theme=light] .i-sun{display:none}[data-theme=light] .i-moon{display:block}
.ver-pill{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:650;color:var(--text-2);padding:5px 10px;border:1px solid var(--border);border-radius:999px;background:var(--surface)}
.ver-pill i{width:7px;height:7px;border-radius:50%;background:var(--good);box-shadow:0 0 0 3px var(--good-soft)}
.menu-toggle{display:none}

/* ---------- Layout ---------- */
.shell{max-width:1560px;margin:0 auto;display:grid;grid-template-columns:var(--sidebar) minmax(0,1fr)}
.sidebar{position:sticky;top:var(--topbar);height:calc(100vh - var(--topbar));overflow:auto;padding:22px 14px 40px 20px;border-right:1px solid var(--border);scrollbar-width:thin;scrollbar-color:var(--border-strong) transparent}
.side-group{margin:0 0 6px}
.side-group>summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:8px;padding:7px 10px;border-radius:8px;font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--text-3);user-select:none}
.side-group>summary::-webkit-details-marker{display:none}
.side-group>summary:hover{color:var(--text);background:var(--surface)}
.side-group>summary .chev{margin-left:auto;transition:transform .18s var(--ease)}
.side-group[open]>summary .chev{transform:rotate(90deg)}
.side-group>summary .icon{width:15px;height:15px}
.side-links{display:grid;gap:1px;padding:3px 0 10px 12px;margin-left:16px;border-left:1px solid var(--border)}
.side-links a{display:block;padding:6px 10px;border-radius:7px;font-size:14px;color:var(--text-2);line-height:1.4}
.side-links a:hover{background:var(--surface);color:var(--text);text-decoration:none}
.side-links a[aria-current=page]{background:var(--accent-soft);color:var(--accent);font-weight:620;box-shadow:inset 2px 0 0 var(--accent)}
.side-sub{margin:8px 10px 3px;font-size:11px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;color:var(--text-3);opacity:.85}
.main{min-width:0;padding:0 clamp(20px,4vw,56px) 60px}
.doc-grid{display:grid;grid-template-columns:minmax(0,1fr) var(--toc);gap:52px;max-width:1080px;margin:0 auto}
.doc{min-width:0;padding-top:34px;animation:rise .35s var(--ease) both}
@keyframes rise{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:6px;font-size:13px;color:var(--text-3);margin-bottom:18px}
.crumbs a{color:var(--text-3)}.crumbs a:hover{color:var(--text)}
.crumbs .sep{opacity:.5}
.eyebrow{display:inline-flex;align-items:center;gap:7px;font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);margin-bottom:10px}
.doc h1{font-size:clamp(32px,4.4vw,46px);line-height:1.1;letter-spacing:-.035em;margin:0 0 14px;font-weight:780}
.lede{font-size:19px;line-height:1.6;color:var(--text-2);margin:0 0 20px;max-width:64ch}
.page-tools{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 30px;padding-bottom:22px;border-bottom:1px solid var(--border)}
.chip-btn{display:inline-flex;align-items:center;gap:7px;font:inherit;font-size:13px;font-weight:600;color:var(--text-2);padding:6px 11px;border:1px solid var(--border);background:var(--surface);border-radius:999px;cursor:pointer}
.chip-btn:hover{border-color:var(--border-strong);color:var(--text);text-decoration:none;background:var(--surface-2)}
.chip-btn .icon{width:14px;height:14px}
.doc h2{font-size:27px;line-height:1.25;letter-spacing:-.025em;margin:2.4em 0 .6em;font-weight:730;padding-top:1.4em;border-top:1px solid var(--border)}
.doc h2:first-of-type{border-top:0;padding-top:0;margin-top:1.4em}
.doc h3{font-size:19px;line-height:1.35;letter-spacing:-.015em;margin:1.9em 0 .5em;font-weight:680}
.doc h4{font-size:16px;margin:1.6em 0 .4em}
.doc :is(h2,h3,h4){position:relative}
.anchor{position:absolute;left:-1.15em;top:0;padding-right:.3em;color:var(--text-3);opacity:0;font-weight:500;text-decoration:none!important}
.doc :is(h2,h3,h4):hover .anchor,.anchor:focus{opacity:1}
.doc p,.doc li{color:var(--text-2)}
.doc p{margin:0 0 1em}
.doc strong,.doc b{color:var(--text);font-weight:650}
.doc ul,.doc ol{padding-left:1.3em;margin:0 0 1.1em}
.doc li{margin:.3em 0}
.doc li::marker{color:var(--text-3)}
.doc hr{border:0;border-top:1px solid var(--border);margin:2em 0}
.doc :not(pre)>code{font:.86em/1.4 var(--mono);padding:.16em .42em;border-radius:6px;background:var(--surface-2);border:1px solid var(--border);color:var(--text);white-space:normal;overflow-wrap:anywhere}
.doc a:not(.card):not(.api-card):not(.chip-btn):not(.pn) code{color:var(--accent)}
.muted{color:var(--text-3)}
.ui-path{display:inline-block;font-size:.9em;font-weight:600;padding:.05em .55em;border-radius:6px;background:var(--accent-soft);color:var(--accent);border:1px solid var(--accent-line)}
.doc .kbd{display:inline-block;margin:0 1px;vertical-align:baseline}

/* code */
.codeblock{position:relative;margin:1.2em 0 1.5em;border:1px solid var(--border);border-radius:var(--radius);background:var(--code-bg);overflow:hidden}
.codeblock header{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:7px 8px 7px 14px;background:var(--code-head);border-bottom:1px solid var(--border);font:600 12px var(--mono);color:var(--text-3);text-transform:lowercase}
.copy{display:inline-flex;align-items:center;gap:6px;font:600 12px var(--font);padding:5px 9px;border-radius:7px;border:1px solid transparent;background:transparent;color:var(--text-3);cursor:pointer}
.copy:hover{background:var(--surface-2);color:var(--text);border-color:var(--border)}
.copy.done{color:var(--good)}
.copy .icon{width:14px;height:14px}
.codeblock pre{margin:0;padding:16px 18px;overflow:auto;font:13.5px/1.65 var(--mono);color:var(--text);tab-size:2;scrollbar-width:thin}
.codeblock pre code{font:inherit;background:none;border:0;padding:0;color:inherit}
[class^=t-k]{color:var(--tok-k)}[class^=t-s]{color:var(--tok-s)}[class^=t-m]{color:var(--tok-n)}[class^=t-c]{color:var(--tok-c);font-style:italic}
[class^=t-nf],[class^=t-fm]{color:var(--tok-f)}[class^=t-nb],[class^=t-bp]{color:var(--tok-b)}[class^=t-o]{color:var(--tok-o)}[class^=t-p]{color:var(--tok-p)}[class^=t-nc],[class^=t-nx]{color:var(--tok-f)}[class^=t-kc]{color:var(--tok-n)}

/* tables */
.table-wrap{margin:1.2em 0 1.6em;border:1px solid var(--border);border-radius:var(--radius);overflow:auto;background:var(--bg-elev);scrollbar-width:thin}
.table-wrap table{width:100%;border-collapse:collapse;font-size:14.5px;line-height:1.55}
.table-wrap th{position:sticky;top:0;text-align:left;font-size:12px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--text-3);background:var(--surface);padding:10px 14px;border-bottom:1px solid var(--border);white-space:nowrap}
.table-wrap td{padding:11px 14px;border-bottom:1px solid var(--border);vertical-align:top;color:var(--text-2)}
.table-wrap tr:last-child td{border-bottom:0}
.table-wrap tbody tr:hover td{background:color-mix(in srgb,var(--surface) 60%,transparent)}
.table-wrap td:first-child{white-space:nowrap;color:var(--text)}
.table-wrap td code{white-space:nowrap}
.table-wrap td:not(:first-child) code{white-space:normal}
.ty{display:inline-block;font:600 11.5px/1 var(--mono);padding:4px 7px;border-radius:6px;background:var(--surface-2);color:var(--text-2);border:1px solid var(--border)}
.ty.ty-enum{color:var(--tok-k)}.ty.ty-num{color:var(--tok-n)}.ty.ty-bool{color:var(--tok-b)}.ty.ty-str{color:var(--tok-s)}.ty.ty-obj{color:var(--tok-f)}

/* callouts */
.callout{--c:var(--info);--cs:var(--info-soft);display:flex;gap:13px;margin:1.3em 0;padding:14px 16px;border:1px solid color-mix(in srgb,var(--c) 30%,var(--border));background:var(--cs);border-radius:var(--radius)}
.callout>.icon{width:20px;height:20px;margin-top:2px;color:var(--c)}
.callout .cbody{min-width:0;color:var(--text-2)}
.callout .ctitle{display:block;color:var(--text);font-weight:680;margin-bottom:2px}
.callout .cbody>:last-child{margin-bottom:0}
.callout.warn,.callout.warning{--c:var(--warn);--cs:var(--warn-soft)}
.callout.success{--c:var(--good);--cs:var(--good-soft)}
.callout.danger{--c:var(--bad);--cs:var(--bad-soft)}

/* legacy components */
.cards,.api-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px;margin:1.2em 0 1.6em}
.two-col{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:1.2em 0}
.card,.api-card{display:block;padding:18px;border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-elev);color:var(--text-2);transition:border-color .15s,transform .2s var(--ease),background .15s}
.card h3{margin:0 0 6px;font-size:16px}.card h3 a{color:var(--text)}.card p{margin:0;font-size:14.5px}
a.card:hover,a.api-card:hover,.card:hover{border-color:var(--accent-line);background:var(--surface);text-decoration:none}
.api-card strong{display:block;color:var(--text);font-family:var(--mono);font-size:14.5px;margin-bottom:4px}
.api-card span{font-size:14px;color:var(--text-3);display:block}
.api-search-note{padding:12px 14px;border-radius:10px;background:var(--surface);border:1px solid var(--border);font-size:14.5px;color:var(--text-2);margin:1em 0}
.api-bullets{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0}.api-bullets li{margin:0}
.api-bullets code{display:inline-block}
.badge,.tag{display:inline-block;font-size:11.5px;font-weight:700;padding:3px 9px;border-radius:999px;background:var(--good-soft);color:var(--good);letter-spacing:.02em}
.step{display:flex;gap:14px;margin:12px 0;padding:14px 16px;border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-elev)}
.step .num{flex:none;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;font-weight:750;font-size:13px;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:var(--accent-ink)}
.step>div:last-child{min-width:0}
.recipe{margin:1.2em 0;padding:4px 18px 10px;border:1px solid var(--border);border-radius:14px;background:linear-gradient(180deg,var(--bg-elev),transparent)}
.recipe>h3{margin-top:.9em!important}
.flow{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:1.2em 0}
.flow .node{padding:7px 12px;border-radius:9px;border:1px solid var(--border-strong);background:var(--surface);font-size:13.5px;font-weight:600;color:var(--text)}
.flow .arrow{color:var(--text-3)}
.checklist{padding:16px 18px;border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-elev);line-height:2}
.api-example-grid{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.4fr);gap:14px;margin:1em 0 1.4em;align-items:start}
.api-example{min-width:0;padding:4px 16px 8px;border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-elev)}
.api-example h3{margin:.8em 0 .4em!important;font-size:13px!important;letter-spacing:.06em;text-transform:uppercase;color:var(--text-3)}
.api-example .codeblock{margin:.4em 0 .8em}

/* prev/next + footer */
.pager{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:56px 0 24px}
.pn{display:flex;flex-direction:column;gap:3px;padding:16px 18px;border:1px solid var(--border);border-radius:var(--radius);color:var(--text);transition:border-color .15s,background .15s}
.pn:hover{border-color:var(--accent-line);background:var(--surface);text-decoration:none}
.pn small{font-size:12px;font-weight:650;letter-spacing:.06em;text-transform:uppercase;color:var(--text-3)}
.pn b{font-size:16px;color:var(--text)}
.pn.next{text-align:right;grid-column:2}.pn.prev{grid-column:1}
.foot{border-top:1px solid var(--border);padding:26px 0 8px;display:flex;flex-wrap:wrap;gap:12px 28px;justify-content:space-between;color:var(--text-3);font-size:13.5px}
.foot nav{display:flex;flex-wrap:wrap;gap:6px 18px}.foot a{color:var(--text-3)}.foot a:hover{color:var(--text)}

/* toc */
.toc{position:sticky;top:calc(var(--topbar) + 26px);align-self:start;max-height:calc(100vh - var(--topbar) - 50px);overflow:auto;padding-top:34px;font-size:13.5px;scrollbar-width:thin}
.toc h2{font-size:12px!important;letter-spacing:.08em;text-transform:uppercase;color:var(--text-3);margin:0 0 10px!important;padding:0!important;border:0!important}
.toc ol{list-style:none;margin:0;padding:0;border-left:1px solid var(--border)}
.toc li{margin:0}
.toc a{display:block;padding:4px 0 4px 14px;margin-left:-1px;border-left:2px solid transparent;color:var(--text-3);line-height:1.4}
.toc a:hover{color:var(--text);text-decoration:none}
.toc a.on{color:var(--accent);border-left-color:var(--accent);font-weight:600}
.toc .l3 a{padding-left:28px;font-size:13px}

/* ---------- Search palette ---------- */
.palette{position:fixed;inset:0;z-index:80;display:none;align-items:flex-start;justify-content:center;padding:11vh 16px 16px;background:rgba(3,6,12,.62);backdrop-filter:blur(6px)}
.palette.open{display:flex;animation:fade .15s ease both}
@keyframes fade{from{opacity:0}to{opacity:1}}
.pal-box{width:min(680px,100%);max-height:72vh;display:flex;flex-direction:column;background:var(--bg-elev);border:1px solid var(--border-strong);border-radius:16px;box-shadow:var(--shadow);overflow:hidden;animation:pop .2s var(--ease) both}
@keyframes pop{from{opacity:0;transform:translateY(-8px) scale(.985)}to{opacity:1;transform:none}}
.pal-head{display:flex;align-items:center;gap:12px;padding:14px 16px;border-bottom:1px solid var(--border)}
.pal-head .icon{width:20px;height:20px;color:var(--text-3)}
.pal-head input{flex:1;background:transparent;border:0;outline:0;color:var(--text);font:inherit;font-size:17px}
.pal-list{overflow:auto;padding:8px;flex:1}
.pal-group{padding:10px 10px 4px;font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--text-3)}
.pal-item{display:block;padding:10px 12px;border-radius:10px;color:var(--text);cursor:pointer}
.pal-item:hover{text-decoration:none}
.pal-item[aria-selected=true]{background:var(--accent-soft);box-shadow:inset 0 0 0 1px var(--accent-line)}
.pal-item b{display:flex;align-items:center;gap:8px;font-size:15px}
.pal-item b i{font-style:normal;font-size:11px;font-weight:650;color:var(--text-3);border:1px solid var(--border);padding:1px 7px;border-radius:999px}
.pal-item p{margin:2px 0 0;font-size:13.5px;color:var(--text-3);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pal-item mark{background:transparent;color:var(--accent);font-weight:700}
.pal-empty{padding:34px 16px;text-align:center;color:var(--text-3)}
.pal-foot{display:flex;gap:16px;padding:10px 16px;border-top:1px solid var(--border);font-size:12px;color:var(--text-3);background:var(--surface)}
.pal-foot span{display:inline-flex;gap:6px;align-items:center}

/* ---------- Landing ---------- */
.landing .main{padding:0}
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--border)}
.hero::before{content:"";position:absolute;inset:0;background:var(--glow),radial-gradient(40% 50% at 85% 20%,color-mix(in srgb,var(--accent-2) 16%,transparent),transparent 70%);pointer-events:none}
.hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--border) 1px,transparent 1px),linear-gradient(90deg,var(--border) 1px,transparent 1px);background-size:44px 44px;mask-image:radial-gradient(70% 70% at 50% 0%,#000,transparent 75%);-webkit-mask-image:radial-gradient(70% 70% at 50% 0%,#000,transparent 75%);opacity:.45;pointer-events:none}
.hero-in{position:relative;z-index:1;max-width:1240px;margin:0 auto;padding:84px 28px 76px;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:48px;align-items:center}
.hero .pill{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--text-2);padding:6px 12px;border:1px solid var(--border-strong);border-radius:999px;background:color-mix(in srgb,var(--surface) 70%,transparent);margin-bottom:22px}
.hero .pill b{color:var(--accent)}
.hero h1{font-size:clamp(40px,6vw,68px);line-height:1.03;letter-spacing:-.045em;margin:0 0 20px;font-weight:800}
.grad{display:inline-block;padding:0 .08em .08em 0;background:linear-gradient(100deg,var(--accent),var(--accent-2) 60%,#f0abfc);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.sub{font-size:19px;line-height:1.6;color:var(--text-2);max-width:56ch;margin:0 0 30px}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 20px;border-radius:12px;font-weight:650;font-size:15px;border:1px solid var(--border-strong);color:var(--text);background:var(--surface);transition:transform .15s var(--ease),border-color .15s,background .15s}
.btn:hover{text-decoration:none;transform:translateY(-1px);border-color:var(--accent-line);background:var(--surface-2)}
.btn.primary{background:linear-gradient(135deg,var(--accent),color-mix(in srgb,var(--accent) 50%,var(--accent-2)));color:var(--accent-ink);border-color:transparent;box-shadow:0 10px 30px -10px color-mix(in srgb,var(--accent) 70%,transparent)}
.btn.primary:hover{filter:brightness(1.07)}
.hero-code{position:relative}
.hero-code .codeblock{box-shadow:var(--shadow);margin:0}
.hero-code::before{content:"";position:absolute;inset:-1px;border-radius:14px;background:linear-gradient(135deg,var(--accent-line),transparent 40%,color-mix(in srgb,var(--accent-2) 45%,transparent));z-index:-1;filter:blur(18px);opacity:.55}
.stats{max-width:1240px;margin:0 auto;padding:0 28px;display:grid;grid-template-columns:repeat(4,1fr);border-bottom:1px solid var(--border)}
.stat{padding:26px 8px;text-align:left}
.stat b{display:block;font-size:34px;letter-spacing:-.03em;font-weight:780}
.stat span{color:var(--text-3);font-size:14px}
.section{max-width:1240px;margin:0 auto;padding:74px 28px 10px}
.section>h2{font-size:clamp(28px,3.4vw,38px);letter-spacing:-.035em;line-height:1.15;margin:0 0 12px;font-weight:770}
.section>.sub{color:var(--text-2);font-size:17.5px;max-width:64ch;margin:0 0 34px}
.feat{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.feat a{position:relative;display:block;padding:24px;border:1px solid var(--border);border-radius:16px;background:var(--bg-elev);color:var(--text-2);overflow:hidden;transition:transform .2s var(--ease),border-color .15s,background .15s}
.feat a::before{content:"";position:absolute;inset:0;background:radial-gradient(80% 60% at 0% 0%,var(--accent-soft),transparent 70%);opacity:0;transition:opacity .25s}
.feat a:hover{transform:translateY(-3px);border-color:var(--accent-line);text-decoration:none}.feat a:hover::before{opacity:1}
.feat .fi{position:relative;display:grid;place-items:center;width:42px;height:42px;border-radius:12px;background:var(--accent-soft);color:var(--accent);border:1px solid var(--accent-line);margin-bottom:16px}
.feat .fi .icon{width:21px;height:21px}
.feat h3{position:relative;margin:0 0 6px;font-size:18px;color:var(--text);letter-spacing:-.015em}
.feat p{position:relative;margin:0;font-size:15px;line-height:1.6}
.path{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;counter-reset:s}
.path a{position:relative;display:block;padding:26px 24px 22px;border:1px solid var(--border);border-radius:16px;background:var(--bg-elev);color:var(--text-2)}
.path a:hover{border-color:var(--accent-line);text-decoration:none;background:var(--surface)}
.path a::before{counter-increment:s;content:counter(s);display:grid;place-items:center;width:32px;height:32px;border-radius:50%;margin-bottom:14px;font-weight:780;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:var(--accent-ink)}
.path h3{margin:0 0 6px;color:var(--text);font-size:18px}.path p{margin:0;font-size:15px}
.chips{display:flex;flex-wrap:wrap;gap:9px}
.chips a{font:600 13.5px var(--mono);padding:8px 13px;border:1px solid var(--border);border-radius:10px;background:var(--bg-elev);color:var(--text-2)}
.chips a:hover{border-color:var(--accent-line);color:var(--accent);text-decoration:none;background:var(--surface)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.panel{padding:26px;border:1px solid var(--border);border-radius:16px;background:var(--bg-elev)}
.panel h3{margin:0 0 8px;font-size:19px}.panel p{color:var(--text-2);margin:0 0 14px}
.panel ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}.panel li{display:flex;gap:10px;align-items:flex-start;color:var(--text-2);font-size:15px}
.panel li .icon{color:var(--good);margin-top:5px}
.landing-foot{max-width:1240px;margin:0 auto;padding:60px 28px 34px}
.landing-foot .foot{margin-top:0}
.cta{margin:70px auto 0;max-width:1240px;padding:0 28px}
.cta-in{position:relative;overflow:hidden;padding:48px 40px;border-radius:22px;border:1px solid var(--border-strong);background:radial-gradient(70% 120% at 100% 0%,color-mix(in srgb,var(--accent-2) 22%,transparent),transparent 60%),radial-gradient(60% 120% at 0% 100%,var(--accent-soft),transparent 60%),var(--bg-elev);display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between}
.cta-in h2{margin:0 0 6px;font-size:30px;letter-spacing:-.03em;border:0;padding:0}.cta-in p{margin:0;color:var(--text-2)}

/* version list / misc */
.version-list{display:grid;gap:12px;margin:1.2em 0}
.version-item{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:16px 18px;border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-elev)}
.version-item strong{color:var(--text)}
.button{display:inline-block;padding:8px 14px;border-radius:9px;border:1px solid var(--border-strong);background:var(--surface);color:var(--text);font-weight:600;font-size:14px}
.button:hover{text-decoration:none;border-color:var(--accent-line)}
.sitemap-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:22px 28px;margin-top:1.4em}
.sitemap-grid h2{font-size:15px!important;letter-spacing:.06em;text-transform:uppercase;color:var(--text-3);border:0!important;padding:0!important;margin:0 0 8px!important}
.sitemap-grid ul{list-style:none;padding:0;margin:0}.sitemap-grid li{margin:3px 0}
.notfound{text-align:center;padding:90px 0 40px}.notfound h1{font-size:88px;margin:0}

/* ---------- Responsive ---------- */
@media (max-width:1180px){.doc-grid{grid-template-columns:minmax(0,1fr)}.toc{display:none}.hero-in{grid-template-columns:1fr;padding-top:60px}.feat{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:920px){
  .topnav,.ver-pill{display:none}.search-btn{min-width:0}.search-btn span,.search-btn kbd{display:none}.search-btn{padding:9px}
  .menu-toggle{display:grid}
  .shell{grid-template-columns:minmax(0,1fr)}
  .sidebar{position:fixed;z-index:60;top:var(--topbar);left:0;bottom:0;width:min(86vw,320px);height:auto;background:var(--bg);transform:translateX(-102%);transition:transform .25s var(--ease);box-shadow:var(--shadow)}
  body.drawer .sidebar{transform:none}
  body.drawer::after{content:"";position:fixed;inset:var(--topbar) 0 0 0;background:rgba(3,6,12,.55);z-index:55}
  .stats{grid-template-columns:repeat(2,1fr)}.path,.split,.two-col,.api-example-grid{grid-template-columns:1fr}
}
@media (max-width:640px){.feat{grid-template-columns:1fr}.hero-in{padding:44px 20px 50px}.section{padding:52px 20px 4px}.pager{grid-template-columns:1fr}.pn.next{grid-column:1;text-align:left}.brand small{display:none}.doc h2{font-size:23px}.cta-in{padding:32px 24px}}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
@media print{.topbar,.sidebar,.toc,.pager,.page-tools,.palette,.anchor,.copy{display:none!important}.shell,.doc-grid{display:block}body{background:#fff;color:#000}.doc p,.doc li,.table-wrap td{color:#111}.codeblock,.table-wrap{break-inside:avoid}}

.easing-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:12px;margin:.8em 0 1.6em}
.easing-card{border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-elev);padding:10px;text-align:center}
.easing-card svg{width:100%;height:auto;display:block}
.easing-card .g{stroke:var(--border-strong);stroke-width:1;stroke-dasharray:3 3}
.easing-card path{fill:none;stroke:var(--accent);stroke-width:2.5;stroke-linejoin:round;stroke-linecap:round}
.easing-card code{display:block;margin-top:6px;font-size:12.5px}