/* ilang.guide — stage (dark) for the home, paper (light) for host pages. Brand tokens from ilang.ai. */
:root{
  --stage:#0d0e0f; --stage-2:#121314; --raise:#1a1b1d; --raise-2:#222326;
  --ink:#ececec; --ink-2:#c6c8cc; --ink-3:#9a9da3;
  --gold:#e0b96a; --gold-2:#f0d287; --gold-deep:#a6772e;
  --rule:rgba(236,236,236,.16); --rule-soft:rgba(236,236,236,.08);
  --paper:#e9eaec; --paper-2:#dfe1e4; --paper-3:#d3d5d9;
  --paper-ink:#121314; --paper-ink-2:#393c40; --paper-ink-3:#5f6368;
  --paper-rule:rgba(18,19,20,.14); --paper-rule-soft:rgba(18,19,20,.07);
  --seal:#7a5a1c; --seal-wash:rgba(154,111,34,.12);
  --f-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,"Segoe UI",system-ui,sans-serif;
  --f-mono:ui-monospace,"Cascadia Mono","SF Mono",Menlo,Consolas,monospace;
  --ease:cubic-bezier(.16,1,.3,1);
  --gutter:clamp(20px,5vw,72px);
  --max:1180px;
  --nav-h:60px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
html.reduce{scroll-behavior:auto}
body{margin:0;background:var(--stage);color:var(--ink);font-family:var(--f-sans);font-size:17px;line-height:1.7;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
body.paper{background:var(--paper);color:var(--paper-ink)}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;padding:0}
::selection{background:rgba(224,185,106,.35)}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* page progress: a hairline of gold that fills as the story is read */
.progress{position:fixed;left:0;top:0;z-index:60;height:2px;width:100%;transform-origin:left;transform:scaleX(var(--sp,0));background:linear-gradient(90deg,var(--gold-deep),var(--gold-2));pointer-events:none}
html.reduce .progress{display:none}

/* nav */
.nav{position:fixed;inset:0 0 auto 0;z-index:50;height:var(--nav-h);display:flex;align-items:center;justify-content:space-between;padding:0 var(--gutter);
  background:linear-gradient(to bottom,rgba(13,14,15,.86),rgba(13,14,15,0));transition:background .5s var(--ease)}
.nav.scrolled{background:rgba(13,14,15,.72);backdrop-filter:saturate(1.4) blur(14px);-webkit-backdrop-filter:saturate(1.4) blur(14px);border-bottom:1px solid var(--rule-soft)}
.nav .brand{display:flex;align-items:center;gap:10px;font-weight:600;letter-spacing:.02em;font-size:15px}
.nav .brand img{width:26px;height:26px}
.nav .brand span b{font-weight:700}
.nav .brand span i{font-style:normal;color:var(--ink-3);font-weight:400;margin-left:8px}
.nav .links{display:flex;gap:6px;align-items:center}
.nav .links a{font-size:14px;color:var(--ink-2);padding:8px 12px;border-radius:999px;transition:color .3s,background .3s}
.nav .links a:hover{color:var(--ink);background:var(--rule-soft)}
.nav .links a.cta{color:var(--stage);background:var(--gold);font-weight:600}
.nav .links a.cta:hover{background:var(--gold-2)}
body.paper .nav{background:linear-gradient(to bottom,rgba(233,234,236,.9),rgba(233,234,236,0))}
body.paper .nav.scrolled{background:rgba(233,234,236,.78);border-bottom:1px solid var(--paper-rule-soft)}
body.paper .nav .brand span i{color:var(--paper-ink-3)}
body.paper .nav .links a{color:var(--paper-ink-2)}
body.paper .nav .links a:hover{color:var(--paper-ink);background:var(--paper-rule-soft)}
body.paper .nav .links a.cta{color:var(--paper);background:var(--paper-ink)}
body.paper .nav .links a.cta:hover{background:#000}
.nav .links a{white-space:nowrap}
@media (max-width:640px){.nav{height:56px;--nav-h:56px}.nav .brand{font-size:14px;gap:8px}.nav .brand img{width:22px;height:22px}.nav .brand span i,.nav .links a.hide-m{display:none}.nav .links{gap:2px}.nav .links a{padding:7px 9px;font-size:13px}}

/* scroll-driven acts: height = scroll length, .stage sticks for the ride */
.act{position:relative;height:var(--h,300vh)}
.stage{position:sticky;top:0;height:100vh;height:100svh;display:grid;place-items:center;overflow:hidden;padding:var(--nav-h) var(--gutter) 0}
.stage .inner{width:min(100%,var(--max));margin:0 auto}
[data-in],[data-out]{opacity:var(--v,1);transform:translate3d(0,calc((1 - var(--v,1))*var(--rise,28px)),0);will-change:opacity,transform}
html.reduce .act{height:auto}
html.reduce .stage{position:relative;height:auto;min-height:0;padding:96px var(--gutter)}
html.reduce [data-in],html.reduce [data-out]{opacity:1;transform:none}
html.reduce .act-run .copy{grid-template-areas:none;gap:32px}
html.reduce .act-run .copy > *{grid-area:auto}
html.reduce .act-moment .inner{grid-template-areas:none;gap:48px}
html.reduce .act-moment .inner > *{grid-area:auto}

/* type */
.eyebrow{font-size:13px;letter-spacing:.12em;color:var(--gold);font-weight:600}
.h-display{font-size:clamp(52px,11vw,160px);line-height:.98;letter-spacing:-.03em;font-weight:700;margin:0;text-wrap:balance}
.h-display.l2{font-size:clamp(34px,7.6vw,112px);letter-spacing:-.025em;line-height:1.04}
.h-big{font-size:clamp(36px,7vw,104px);line-height:1.02;letter-spacing:-.025em;font-weight:700;margin:0;text-wrap:balance}
.nowrap{white-space:nowrap}
.act-say .h-big{font-size:clamp(28px,5.4vw,76px)}
.h-sec{font-size:clamp(30px,4.6vw,60px);line-height:1.08;letter-spacing:-.02em;font-weight:700;margin:0}
.h-sub{font-size:clamp(17px,2vw,24px);line-height:1.55;color:var(--ink-2);margin:0;font-weight:400}
.gold{color:var(--gold)}
.mono{font-family:var(--f-mono)}
.muted{color:var(--ink-3)}

/* hero */
.act-hero{--h:190vh}
.act-hero .glow{position:absolute;left:50%;top:58%;width:min(120vw,1100px);aspect-ratio:1;transform:translate(-50%,-50%);pointer-events:none;
  background:radial-gradient(closest-side,rgba(224,185,106,.22),rgba(224,185,106,.06) 40%,transparent 70%);opacity:calc(.5 + var(--p,0)*.6);filter:blur(10px)}
.act-hero .inner{position:relative;text-align:center}
.act-hero .eyebrow{margin-bottom:clamp(20px,3vw,36px)}
.act-hero .h-display{display:block}
.act-hero .h-display + .h-display{margin-top:.06em}
.act-hero .h-sub{max-width:34em;margin:clamp(22px,3vw,40px) auto 0}
.cue{position:absolute;left:50%;bottom:28px;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:8px;color:var(--ink-3);font-size:12px;letter-spacing:.14em}
.cue i{width:1px;height:38px;background:linear-gradient(var(--gold),transparent);animation:cue 1.8s var(--ease) infinite}
@keyframes cue{0%{transform:scaleY(0);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}51%{transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}
html.reduce .cue{display:none}

/* act: the sentence */
.act-say{--h:340vh}
.act-say .inner{display:grid;gap:clamp(22px,3vw,40px);justify-items:center;text-align:center}
.composer{width:min(100%,820px);text-align:left;background:var(--raise);border:1px solid var(--rule);border-radius:22px;padding:clamp(18px,2.6vw,28px) clamp(18px,2.8vw,30px) clamp(14px,2vw,20px);box-shadow:0 30px 80px rgba(0,0,0,.45),0 0 0 1px rgba(224,185,106,calc(var(--p,0)*.25));position:relative}
.composer .label{font-size:12px;letter-spacing:.12em;color:var(--ink-3);margin-bottom:14px;display:flex;justify-content:space-between;gap:12px}
.composer .text{font-size:clamp(15px,1.7vw,20px);line-height:1.75;color:var(--ink);min-height:calc(1.75em*5);word-break:break-all}
.composer .text::after{content:"";display:inline-block;width:2px;height:1.1em;vertical-align:-.15em;margin-left:2px;background:var(--gold);animation:blink 1s steps(2) infinite}
.composer .text.done::after{animation:none;opacity:0}
html.reduce .composer .text::after{display:none}
@keyframes blink{to{opacity:0}}
.composer .bar{display:flex;align-items:center;justify-content:space-between;margin-top:18px;padding-top:14px;border-top:1px solid var(--rule-soft)}
.composer .chip{font-size:12px;color:var(--ink-3);border:1px solid var(--rule);border-radius:999px;padding:4px 10px}
.composer .send{--rise:0;width:40px;height:40px;border-radius:50%;background:var(--raise-2);color:var(--ink-3);display:grid;place-items:center;box-shadow:0 0 0 0 rgba(224,185,106,0);transition:box-shadow .6s,background .5s,color .5s}
.composer .send.on{background:var(--gold);color:var(--stage);box-shadow:0 0 0 10px rgba(224,185,106,.14),0 0 40px rgba(224,185,106,.45)}
.composer .send svg{width:18px;height:18px}

/* act: bootstrap replay */
.act-run{--h:460vh}
.act-run .inner{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(24px,4vw,64px);align-items:center}
.act-run .copy{display:grid;grid-template-areas:"a";align-content:center}
.act-run .copy > *{grid-area:a}
.act-run .copy .h-big{max-width:9em}
.act-run .copy small{display:block;margin-top:18px;color:var(--ink-3);font-size:14px;line-height:1.6;max-width:28em}
.term{background:var(--stage-2);border:1px solid var(--rule);border-radius:18px;overflow:hidden;box-shadow:0 30px 80px rgba(0,0,0,.5);display:flex;flex-direction:column;max-height:calc(100svh - var(--nav-h) - 56px)}
.term pre{overflow:auto;flex:1;min-height:0;scrollbar-width:thin;scrollbar-color:var(--raise-2) transparent}
html.reduce .term{max-height:none}
.term .top{display:flex;gap:7px;align-items:center;padding:12px 14px;border-bottom:1px solid var(--rule-soft);font-size:12px;color:var(--ink-3)}
.term .top i{width:10px;height:10px;border-radius:50%;background:var(--raise-2)}
.term .top span{margin-left:8px;font-family:var(--f-mono)}
.term pre{margin:0;padding:16px 18px 20px;font-family:var(--f-mono);font-size:clamp(11.5px,1.05vw,14px);line-height:1.6;color:var(--ink-2);white-space:pre-wrap;word-break:break-all}
.term .ln{display:block;opacity:0;transform:translate3d(0,6px,0);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.term .ln.on{opacity:1;transform:none}
.term .ln.hd{color:var(--ink)}
.term .ln.gold{color:var(--gold)}
.term .ln.dim{color:var(--ink-3);font-style:italic}
.term .ln.gap{height:.9em}
.term .ln.mark{color:var(--gold-2);border-top:1px dashed var(--rule);margin-top:.6em;padding-top:.6em}
html.reduce .term .ln{opacity:1;transform:none}
@media (max-width:860px){.act-run .inner{grid-template-columns:1fr;gap:16px;align-content:center}.act-run .copy .h-big{font-size:clamp(26px,7vw,40px);max-width:none}.act-run .copy small{margin-top:8px;font-size:13px}.act-run .copy{min-height:120px}.term{max-height:min(58svh,calc(100svh - var(--nav-h) - 190px))}.term pre{padding:12px 12px 14px;font-size:11px}}

/* act: the moment */
.act-moment{--h:330vh}
.act-moment .inner{display:grid;grid-template-areas:"a";text-align:center}
.act-moment .inner > *{grid-area:a;align-self:center}
.act-moment .final .h-sub{margin-top:clamp(18px,2.5vw,32px);color:var(--ink-3)}

/* static sections */
.sec{padding:clamp(88px,12vw,160px) var(--gutter)}
.sec .inner{width:min(100%,var(--max));margin:0 auto}
.sec .head{max-width:30em;margin-bottom:clamp(36px,5vw,64px)}
.sec .head .eyebrow{margin-bottom:16px}
.sec .head .h-sub{margin-top:18px}
.reveal{opacity:0;transform:translate3d(0,22px,0);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.reveal.in{opacity:1;transform:none}
html.reduce .reveal{opacity:1;transform:none}
.grid{display:grid;gap:14px;grid-template-columns:repeat(4,1fr)}
@media (max-width:1000px){.grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.grid{grid-template-columns:1fr}}
.card{background:var(--raise);border:1px solid var(--rule-soft);border-radius:20px;padding:clamp(22px,2.6vw,32px);transition:border-color .4s,transform .6s var(--ease)}
.card:hover{border-color:var(--rule)}
.card h3{margin:0 0 10px;font-size:clamp(19px,1.6vw,22px);letter-spacing:-.01em}
.card p{margin:0;color:var(--ink-2);font-size:15px;line-height:1.7}
.card .k{font-family:var(--f-mono);font-size:12px;color:var(--gold);letter-spacing:.08em;margin-bottom:14px}
.note{margin-top:28px;color:var(--ink-3);font-size:14px;max-width:46em}

/* host wall */
.hosts{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.host{position:relative;display:flex;flex-direction:column;gap:12px;background:var(--raise);border:1px solid var(--rule-soft);border-radius:20px;padding:20px 24px 22px;min-height:176px;transition:border-color .4s,transform .6s var(--ease),background .4s}
.host.live{border-color:rgba(224,185,106,.45);background:linear-gradient(160deg,rgba(224,185,106,.12),rgba(224,185,106,.02) 60%,var(--raise))}
.host.live:hover{transform:translateY(-4px);border-color:var(--gold)}
.host .name{font-size:22px;font-weight:700;letter-spacing:-.01em;margin:0}
.host .meta{color:var(--ink-3);font-size:13px;line-height:1.6;padding-right:28px}
.host .chip{align-self:flex-start;font-size:11px;letter-spacing:.1em;padding:5px 9px;border-radius:999px;border:1px solid var(--rule)}
.host.live .chip{color:var(--stage);background:var(--gold);border-color:var(--gold);font-weight:700}
.host.soon{color:var(--ink-3)}
.host.soon .name{color:var(--ink-2)}
.host .arrow{position:absolute;right:20px;bottom:18px;color:var(--gold);font-size:20px;transition:transform .5s var(--ease)}
.host.live:hover .arrow{transform:translateX(4px)}

/* two readers */
.two{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.reader{background:var(--raise);border:1px solid var(--rule-soft);border-radius:22px;padding:clamp(24px,3vw,36px)}
.reader .who{display:flex;align-items:baseline;gap:12px;margin-bottom:16px}
.reader .who b{font-size:clamp(26px,3vw,40px);letter-spacing:-.02em}
.reader .who span{color:var(--ink-3);font-size:14px}
.reader p{margin:0 0 14px;color:var(--ink-2);font-size:15px}
.quote{position:relative;background:var(--stage-2);border:1px solid var(--rule);border-radius:16px;padding:18px 20px;font-size:clamp(16px,1.5vw,19px);line-height:1.7;margin:16px 0}
.quote .q{display:block;padding-right:72px;overflow-wrap:anywhere}
.copybtn{position:absolute;right:10px;top:10px;font-size:12px;letter-spacing:.08em;color:var(--stage);background:var(--gold);border-radius:999px;padding:6px 11px;font-weight:700;transition:background .3s,transform .3s}
.copybtn:hover{background:var(--gold-2)}
.copybtn.ok{background:#8fd19e}
.reader .files{display:grid;gap:8px;margin-top:8px}
.reader .files a{display:flex;justify-content:space-between;gap:12px;font-family:var(--f-mono);font-size:13px;color:var(--ink-2);padding:10px 12px;border:1px solid var(--rule-soft);border-radius:12px;transition:border-color .3s,color .3s}
.reader .files a:hover{border-color:var(--gold);color:var(--ink)}
.reader .files a span{color:var(--ink-3);font-family:var(--f-sans)}

/* buttons */
.btns{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 20px;border-radius:999px;font-weight:600;font-size:15px;border:1px solid var(--rule);color:var(--ink);transition:background .3s,border-color .3s,transform .4s var(--ease)}
.btn:hover{border-color:var(--ink-2);transform:translateY(-1px)}
.btn.primary{background:var(--gold);color:var(--stage);border-color:var(--gold)}
.btn.primary:hover{background:var(--gold-2);border-color:var(--gold-2)}

/* footer */
.foot{padding:56px var(--gutter) 40px;border-top:1px solid var(--rule-soft);color:var(--ink-3);font-size:13px}
.foot .inner{width:min(100%,var(--max));margin:0 auto;display:grid;gap:18px}
.foot .row{display:flex;flex-wrap:wrap;gap:8px 22px;align-items:center}
.foot a{color:var(--ink-2)}
.foot a:hover{color:var(--ink)}
.foot .legend{max-width:60em;line-height:1.7}

/* ---------- paper (host page) ---------- */
body.paper .eyebrow{color:var(--seal)}
body.paper .h-sub{color:var(--paper-ink-2)}
body.paper .muted{color:var(--paper-ink-3)}
.doc{padding:calc(var(--nav-h) + clamp(48px,8vw,96px)) var(--gutter) clamp(80px,10vw,140px)}
.doc .inner{width:min(100%,var(--max));margin:0 auto;display:grid;grid-template-columns:minmax(0,1fr);gap:clamp(32px,5vw,72px)}
@media (min-width:980px){.doc .inner{grid-template-columns:220px minmax(0,1fr)}}
.toc{position:sticky;top:calc(var(--nav-h) + 24px);align-self:start;font-size:13.5px;display:none}
@media (min-width:980px){.toc{display:block}}
.toc .t{font-size:11px;letter-spacing:.14em;color:var(--paper-ink-3);margin-bottom:12px;text-transform:uppercase}
.toc a{display:block;color:var(--paper-ink-3);padding:5px 0 5px 12px;border-left:1px solid var(--paper-rule);transition:color .3s,border-color .3s}
.toc a:hover,.toc a.cur{color:var(--paper-ink);border-color:var(--paper-ink)}
.doc-head{margin-bottom:clamp(28px,4vw,48px)}
.doc-head .h-big{font-size:clamp(38px,6.4vw,84px)}
.doc-head .h-sub{margin-top:20px;max-width:34em}
.metas{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.metas span{font-size:12.5px;letter-spacing:.04em;padding:6px 11px;border-radius:999px;border:1px solid var(--paper-rule);color:var(--paper-ink-2);background:rgba(255,255,255,.35)}
.metas span.ok{background:var(--paper-ink);color:var(--paper);border-color:var(--paper-ink);font-weight:600}
.doc section{padding:clamp(28px,4vw,44px) 0;border-top:1px solid var(--paper-rule-soft);scroll-margin-top:calc(var(--nav-h) + 12px)}
.act,.sec{scroll-margin-top:var(--nav-h)}
.doc section:first-of-type{border-top:0;padding-top:0}
.doc h2{font-size:clamp(24px,3vw,36px);letter-spacing:-.02em;line-height:1.15;margin:0 0 16px;display:flex;gap:14px;align-items:baseline}
.doc h2 small{font-family:var(--f-mono);font-size:13px;color:var(--seal);letter-spacing:.1em;font-weight:600}
.doc h3{font-size:18px;margin:26px 0 8px}
.doc p,.doc li{color:var(--paper-ink-2);font-size:16.5px;line-height:1.8;max-width:46em}
.doc p{margin:0 0 12px}
.doc ul,.doc ol{padding-left:1.2em;margin:0 0 12px}
.doc li{margin:4px 0}
.doc strong{color:var(--paper-ink)}
.doc a.ext{color:var(--seal);text-decoration:underline;text-underline-offset:3px;text-decoration-color:rgba(122,90,28,.4)}
.doc a.ext:hover{text-decoration-color:var(--seal)}
.doc code{font-family:var(--f-mono);font-size:.92em;background:var(--paper-2);padding:2px 6px;border-radius:6px}
.doc .quote{background:#fff;border:1px solid var(--paper-rule);color:var(--paper-ink);box-shadow:0 10px 30px rgba(18,19,20,.06)}
.doc .quote .q{font-size:clamp(16px,1.5vw,18.5px)}
.doc .copybtn{background:var(--paper-ink);color:var(--paper)}
.doc .copybtn:hover{background:#000}
.doc table{border-collapse:collapse;width:100%;max-width:46em;font-size:15.5px;margin:8px 0 14px}
.doc th,.doc td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--paper-rule-soft);vertical-align:top;color:var(--paper-ink-2)}
.doc th{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--paper-ink-3);font-weight:600}
.doc td b{color:var(--paper-ink)}
.callout{background:var(--seal-wash);border-left:3px solid var(--seal);border-radius:0 14px 14px 0;padding:14px 18px;margin:16px 0;max-width:46em}
.callout p{margin:0}
.doc .kv{display:grid;grid-template-columns:auto 1fr;gap:6px 18px;font-size:15px;max-width:46em}
.doc .kv dt{color:var(--paper-ink-3)}
.doc .kv dd{margin:0;color:var(--paper-ink-2);font-family:var(--f-mono);font-size:13.5px;word-break:break-all}
.doc .files{display:grid;gap:8px;max-width:46em;margin-top:10px}
.doc .files a{display:flex;justify-content:space-between;gap:12px;font-family:var(--f-mono);font-size:13.5px;color:var(--paper-ink);padding:11px 14px;border:1px solid var(--paper-rule);border-radius:12px;background:#fff;transition:border-color .3s}
.doc .files a:hover{border-color:var(--paper-ink)}
.doc .files a span{color:var(--paper-ink-3);font-family:var(--f-sans)}
body.paper .foot{border-top-color:var(--paper-rule-soft);color:var(--paper-ink-3)}
body.paper .foot a{color:var(--paper-ink-2)}
body.paper .foot a:hover{color:var(--paper-ink)}
body.paper ::selection{background:rgba(122,90,28,.25)}

@media (max-width:640px){
  body{font-size:16px}
  .act-say .h-big .nowrap{display:block}
  .act-hero .eyebrow{font-size:12px;letter-spacing:.08em}
  .stage{padding-left:18px;padding-right:18px}
  .composer{border-radius:18px}
  .composer .text{min-height:calc(1.75em*7)}
  .quote .q{padding-right:0;padding-bottom:40px}
  .copybtn{top:auto;bottom:10px;right:10px}
}