/* OHM case study. Colour tokens are OHM's Figma Theme collection, same names as its web code syntax.
   Graphite (default) / Paper via [data-theme] on <html>. Funnel Display · Funnel Sans · Azeret Mono. */
@font-face{font-family:"Funnel Display";font-weight:500 600;font-display:swap;src:url("assets/fonts/FunnelDisplay-normal-500-600.woff2") format("woff2")}
@font-face{font-family:"Funnel Sans";font-weight:400 600;font-display:swap;src:url("assets/fonts/FunnelSans-normal-400-600.woff2") format("woff2")}
@font-face{font-family:"Azeret Mono";font-weight:400 500;font-display:swap;src:url("assets/fonts/AzeretMono-normal-400-500.woff2") format("woff2")}
:root{
  --color-bg-page:#0B0C0E;--color-bg-surface:#131518;--color-bg-raised:#1A1D21;--color-bg-sunken:#23272C;--color-bg-inverse:#F4F5F6;--color-bg-accent-soft:#2A2400;
  --color-text-primary:#F4F5F6;--color-text-secondary:#B6BBC3;--color-text-muted:#8F96A0;--color-text-inverse:#0B0C0E;
  --color-text-accent:#F5D20B;--color-text-data:#7FE3F2;--color-text-success:#4ADE80;--color-text-on-accent:#0B0C0E;
  --color-border-subtle:#23272C;--color-border-default:#33383F;--color-border-strong:#B6BBC3;--color-border-focus:#F5D20B;
  --color-action-primary:#F5D20B;--color-action-primary-hover:#FFE45C;--color-action-secondary:#F4F5F6;
  --color-accent-signal:#F5D20B;--color-grid-line:#1A1D21;
  --display:"Funnel Display","Funnel Sans",system-ui,sans-serif;--sans:"Funnel Sans",system-ui,-apple-system,"Segoe UI",sans-serif;--mono:"Azeret Mono",ui-monospace,Consolas,monospace;
  --radius-s:6px;--radius-m:12px;--pad:clamp(16px,5vw,64px);--ease:cubic-bezier(.16,1,.3,1);
  --glow:0 0 0 1px rgba(245,210,11,.35),0 18px 50px -20px rgba(245,210,11,.35);
  --shadow:0 30px 70px -40px rgba(0,0,0,.8);
  color-scheme:dark;
}
:root[data-theme="paper"]{
  --color-bg-page:#F4F5F6;--color-bg-surface:#FFFFFF;--color-bg-raised:#FFFFFF;--color-bg-sunken:#E9EBEE;--color-bg-inverse:#0B0C0E;--color-bg-accent-soft:#FFF6C2;
  --color-text-primary:#0B0C0E;--color-text-secondary:#33383F;--color-text-muted:#4C525A;--color-text-inverse:#F4F5F6;
  --color-text-accent:#7A6400;--color-text-data:#0B6E7D;--color-text-success:#1F7A43;--color-text-on-accent:#0B0C0E;
  --color-border-subtle:#D6D9DE;--color-border-default:#B6BBC3;--color-border-strong:#0B0C0E;--color-border-focus:#7A6400;
  --color-action-secondary:#0B0C0E;--color-grid-line:#E9EBEE;
  --shadow:0 30px 60px -36px rgba(11,12,14,.35);
  color-scheme:light;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{background:var(--color-bg-page);color:var(--color-text-primary);font:400 16.5px/1.6 var(--sans);overflow-x:hidden;transition:background-color .4s,color .4s}
a{color:inherit}
img{display:block;max-width:100%;height:auto}
code{font:400 .8em var(--mono);color:var(--color-text-data)}
.mono{font-family:var(--mono)}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
[hidden]{display:none!important}
.skip{position:absolute;left:-999px;top:10px;background:var(--color-action-primary);color:var(--color-text-on-accent);padding:10px 14px;border-radius:var(--radius-s);z-index:99}
.skip:focus{left:10px}
:focus-visible{outline:2px solid var(--color-border-focus);outline-offset:3px;border-radius:4px}
section[id]{scroll-margin-top:66px}
.grid-bg{background-image:linear-gradient(var(--color-grid-line) 1px,transparent 1px),linear-gradient(90deg,var(--color-grid-line) 1px,transparent 1px);background-size:48px 48px;background-position:-1px -1px}

/* corner brackets (the brand's "callout" marks) */
.corners{position:relative}
.corners::before,.corners::after{content:"";position:absolute;width:16px;height:16px;border:1.5px solid var(--color-accent-signal);pointer-events:none;z-index:4}
.corners::before{left:-9px;top:-9px;border-right:0;border-bottom:0}
.corners::after{right:-9px;bottom:-9px;border-left:0;border-top:0}

/* announcement + header */
.announce{display:flex;justify-content:center;gap:28px;background:#0B0C0E;color:#B6BBC3;font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;padding:7px 16px;border-bottom:1px solid #23272C}
.announce span::before{content:"";display:inline-block;width:5px;height:5px;border-radius:50%;background:#F5D20B;margin-right:8px;vertical-align:middle}
.top{position:sticky;top:0;z-index:40;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px;padding:11px var(--pad);background:color-mix(in srgb,var(--color-bg-page) 88%,transparent);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--color-border-subtle)}
.back{justify-self:start;text-decoration:none;font:500 14px var(--sans);color:var(--color-text-secondary);display:inline-flex;gap:8px;align-items:center}
.back span{transition:transform .3s var(--ease)}.back:hover span{transform:translateX(-4px)}
.logo{display:inline-flex;align-items:center;gap:6px;text-decoration:none;font:600 21px/1 var(--display);letter-spacing:-.01em}
.logo svg{width:20px;height:20px}
.top-r{justify-self:end;display:flex;align-items:center;gap:20px}
.toc{display:flex;gap:18px}
.toc a{text-decoration:none;font-size:13.5px;color:var(--color-text-secondary)}
.toc a:hover{color:var(--color-text-primary)}
.seg{display:flex;padding:3px;border-radius:var(--radius-s);border:1px solid var(--color-border-default);background:var(--color-bg-surface)}
.seg button{width:34px;height:28px;border:0;border-radius:4px;background:transparent;color:var(--color-text-muted);cursor:pointer;display:grid;place-items:center}
.seg svg{width:16px;height:16px}
.seg button[aria-pressed="true"]{background:var(--color-bg-sunken);color:var(--color-text-primary)}

/* hero */
.hero{padding:clamp(56px,9vw,120px) var(--pad) clamp(40px,6vw,64px);border-bottom:1px solid var(--color-border-subtle)}
.hero-in{max-width:1440px;margin:0 auto}
.label{display:inline-flex;align-items:center;gap:10px;font:500 11px/1.4 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--color-text-secondary)}
.badge{background:var(--color-action-primary);color:var(--color-text-on-accent);padding:3px 7px;border-radius:3px;font-weight:500}
h1{font:600 clamp(4rem,11vw,9.6rem)/.92 var(--display);letter-spacing:-.045em;margin:24px 0 28px}
h1 span{color:var(--color-text-accent)}
.lede{font-size:clamp(1.08rem,1.7vw,1.32rem);line-height:1.55;color:var(--color-text-secondary);max-width:56ch}
.meta{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:var(--color-border-subtle);border:1px solid var(--color-border-subtle);border-radius:var(--radius-m);overflow:hidden;margin-top:clamp(36px,5vw,56px)}
.meta div{background:var(--color-bg-surface);padding:16px 18px}
.meta dt{font:500 10.5px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--color-text-muted);margin-bottom:6px}
.meta dd{font-size:14.5px;line-height:1.45}
.stats{list-style:none;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:var(--color-border-subtle);border:1px solid var(--color-border-subtle);border-radius:var(--radius-m);overflow:hidden;margin-top:12px}
.stats li{padding:18px;background:var(--color-bg-page)}
.stats b{display:block;font:400 clamp(2rem,3.6vw,3rem)/1 var(--mono);letter-spacing:-.04em;margin-bottom:6px}
.stats span{font-size:13.5px;color:var(--color-text-muted)}

/* film */
.film{padding:clamp(48px,7vw,90px) var(--pad) clamp(60px,9vw,120px);max-width:1520px;margin:0 auto}
.frame{border-radius:var(--radius-m);background:#0B0C0E;box-shadow:var(--shadow)}
.frame video{display:block;width:100%;height:auto;aspect-ratio:16/9;background:#0B0C0E;border-radius:var(--radius-m)}
.cap{margin-top:16px;font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--color-text-muted);text-align:center}

/* sections */
.sec{padding:clamp(70px,10vw,130px) var(--pad);border-top:1px solid var(--color-border-subtle)}
.sec>*{max-width:1440px;margin-left:auto;margin-right:auto}
.raised{background:var(--color-bg-surface)}
.num{font:500 11px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--color-text-accent)}
.split{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:clamp(28px,5vw,80px);align-items:start;margin-top:20px;margin-bottom:clamp(36px,5vw,64px)}
h2{font:600 clamp(2.3rem,5vw,4.2rem)/1.02 var(--display);letter-spacing:-.04em}
.hl{color:var(--color-text-accent)}
.prose{color:var(--color-text-secondary);font-size:clamp(1rem,1.2vw,1.08rem)}
.prose p+p{margin-top:14px}
.note{margin-top:16px;font-size:13.5px;color:var(--color-text-muted)}

.brief{list-style:none;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.brief li{background:var(--color-bg-surface);border:1px solid var(--color-border-subtle);border-radius:var(--radius-m);padding:22px}
.brief b{display:block;font:500 11px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--color-text-accent);margin-bottom:10px}
.brief span{color:var(--color-text-secondary);font-size:15px}

/* decisions */
.dec{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:clamp(28px,5vw,80px);align-items:center;padding:clamp(30px,4vw,52px) 0;border-top:1px solid var(--color-border-subtle)}
.dec.flip{grid-template-columns:minmax(0,1fr) minmax(0,1.25fr)}
.dec.flip .shot{order:2}
.shot{border-radius:var(--radius-m);border:1px solid var(--color-border-default);background:#0B0C0E;box-shadow:var(--shadow)}
.shot img{border-radius:var(--radius-m)}
.dec h3{font:600 clamp(1.9rem,3.2vw,2.8rem)/1.05 var(--display);letter-spacing:-.035em;margin:12px 0 14px}
.dec-text>p:not(.label){color:var(--color-text-secondary);max-width:48ch}
.specs{list-style:none;margin-top:22px;border-top:1px solid var(--color-border-default);max-width:440px}
.specs li{display:flex;justify-content:space-between;gap:16px;padding:10px 0;border-bottom:1px solid var(--color-border-subtle);font-size:13px}
.specs span{color:var(--color-text-muted)}
.specs b{font-weight:500}
.specs .acc{color:var(--color-text-accent)}

/* compare */
.compare{aspect-ratio:1200/750;--pos:50%;user-select:none;touch-action:pan-y;border-radius:var(--radius-m);border:1px solid var(--color-border-default);background:#0B0C0E}
.compare img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;border-radius:var(--radius-m)}
.compare .before{clip-path:inset(0 calc(100% - var(--pos)) 0 0)}
.compare input{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:ew-resize;margin:0;z-index:3}
.compare .handle{position:absolute;top:0;bottom:0;left:var(--pos);width:2px;margin-left:-1px;background:#F5D20B;z-index:2;pointer-events:none}
.compare .handle i{position:absolute;top:50%;left:50%;width:40px;height:40px;margin:-20px 0 0 -20px;border-radius:var(--radius-s);background:#F5D20B;box-shadow:0 8px 20px rgba(0,0,0,.35)}
.compare .handle i::before{content:"‹ ›";position:absolute;inset:0;display:grid;place-items:center;font:600 16px var(--sans);color:#0B0C0E}
.compare input:focus-visible~.handle i{outline:2px solid #F4F5F6;outline-offset:3px}
.compare .tag{position:absolute;top:12px;z-index:2;font:500 10.5px var(--mono);letter-spacing:.08em;text-transform:uppercase;padding:5px 9px;border-radius:3px;pointer-events:none}
.compare .tb{left:12px;background:#0B0C0E;color:#F4F5F6;box-shadow:inset 0 0 0 1px #33383F}
.compare .ta{right:12px;background:#F4F5F6;color:#0B0C0E}

/* process board */
.board{border-radius:var(--radius-m);border:1px solid var(--color-border-default);background:var(--color-bg-surface);box-shadow:var(--shadow)}
.board-bar{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:11px 14px;border-bottom:1px solid var(--color-border-default);font-size:11px;color:var(--color-text-muted)}
.board-btns{display:flex;gap:8px}
.board-btns button,.board-btns a{font:500 13px var(--sans);padding:7px 13px;border-radius:var(--radius-s);border:1px solid var(--color-border-default);background:var(--color-bg-page);color:var(--color-text-primary);text-decoration:none;cursor:pointer;white-space:nowrap}
.board-btns button:hover,.board-btns a:hover{border-color:var(--color-border-strong)}
.board-view{max-height:min(78vh,860px);overflow:hidden;background:#fff;position:relative;border-radius:0 0 var(--radius-m) var(--radius-m)}
.board-view img{width:100%}
.board-view.zoom{overflow:auto;cursor:grab;overscroll-behavior:contain}
.board-view.zoom img{width:2800px;max-width:none}
.board-view.zoom.drag{cursor:grabbing}
.board-view:not(.zoom)::after{content:"";position:absolute;left:0;right:0;bottom:0;height:120px;background:linear-gradient(transparent,rgba(255,255,255,.95));pointer-events:none}
.insights{list-style:none;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:clamp(28px,4vw,44px)}
.insights li{padding:20px 20px 28px;font-size:15px;line-height:1.45;color:#0B0C0E;border-radius:4px;box-shadow:0 10px 22px -14px rgba(0,0,0,.5)}
.insights .s1{background:#A8D8FF}.insights .s2{background:#FFE299}.insights .s3{background:#B7EDC4}
.insights .s4{background:#FFB3DE}.insights .s5{background:#D9C8FF}.insights .s6{background:#B9E3FF}
.insights li:nth-child(odd){transform:rotate(-.6deg)}.insights li:nth-child(even){transform:rotate(.5deg)}

/* system */
.chain{list-style:none;display:grid;grid-template-columns:repeat(4,minmax(0,1fr)) minmax(0,1.3fr);gap:10px;margin-bottom:14px}
.chain li{position:relative;padding:16px 18px;border-radius:var(--radius-m);background:var(--color-bg-page);border:1px solid var(--color-border-default)}
.chain li:not(.end)::after{content:"→";position:absolute;right:-12px;top:50%;transform:translateY(-50%);width:14px;text-align:center;color:var(--color-text-muted);z-index:1}
.chain b{display:block;font:600 1.2rem/1.2 var(--display);letter-spacing:-.02em}
.chain span{font:400 11px var(--mono);color:var(--color-text-muted)}
.chain .end{background:var(--color-action-primary);color:var(--color-text-on-accent);border-color:transparent}
.chain .end span{color:var(--color-text-on-accent);opacity:.75}
.two{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-bottom:14px;align-items:start}
.tokens,.card{background:var(--color-bg-page);border:1px solid var(--color-border-default);border-radius:var(--radius-m);padding:8px 20px}
.card{padding:22px}
.tok-head,.tok{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr) minmax(0,1fr);gap:12px;align-items:center;padding:10px 0}
.tok-head{font:500 10.5px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--color-text-muted)}
.tok{border-top:1px solid var(--color-border-subtle);font:400 12px var(--mono);color:var(--color-text-secondary)}
.tok span{display:flex;align-items:center;gap:10px}
.tok i{width:28px;height:28px;border-radius:var(--radius-s);box-shadow:inset 0 0 0 1px rgba(128,128,128,.45);flex:none}
.card-t{font:500 11px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--color-text-accent);margin-bottom:14px}
.card-f{margin-top:14px;font-size:14px;color:var(--color-text-muted)}
.ctable{width:100%;border-collapse:collapse;font-size:14px}
.ctable th{text-align:left;font:500 10.5px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--color-text-muted);padding:0 0 8px}
.ctable td{padding:9px 0;border-top:1px solid var(--color-border-subtle)}
.ctable td+td,.ctable th+th{text-align:right;width:84px;font-family:var(--mono);font-size:12.5px}
.tscale{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:8px 16px;align-items:baseline}
.tscale>span{font-size:10.5px;color:var(--color-text-muted);white-space:nowrap}
.t-xl{font:600 clamp(2.6rem,5vw,4rem)/1 var(--display);letter-spacing:-.045em}
.t-l{font:600 clamp(1.5rem,2.6vw,2.1rem)/1.1 var(--display);letter-spacing:-.035em}
.t-h{font:600 1.1rem/1.4 var(--sans)}
.t-b{font:400 1rem/1.55 var(--sans);color:var(--color-text-secondary)}
.t-d{font-size:clamp(2rem,3.6vw,2.8rem);line-height:1;letter-spacing:-.04em}
.comps{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.comps figure{background:#131518;border:1px solid #23272C;border-radius:var(--radius-m);padding:clamp(14px,2.2vw,26px);display:grid;gap:14px;align-content:space-between}
.comps .w2{grid-column:span 2}
.comps img{margin:0 auto;max-height:440px;width:auto}
figcaption{font:500 10.5px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:#8F96A0}

/* screens */
.browser{border-radius:var(--radius-m);border:1px solid var(--color-border-default);background:var(--color-bg-surface);box-shadow:var(--shadow)}
.b-bar{display:flex;align-items:center;gap:16px;padding:9px 12px;border-bottom:1px solid var(--color-border-default)}
.dots{display:flex;gap:6px;flex:none}.dots i{width:10px;height:10px;border-radius:50%;background:var(--color-border-default)}
.b-tabs{display:flex;gap:4px;overflow-x:auto;scrollbar-width:none}
.b-tabs::-webkit-scrollbar{display:none}
.b-tabs button{font:500 13px var(--sans);padding:6px 12px;border-radius:var(--radius-s);border:0;background:transparent;color:var(--color-text-secondary);cursor:pointer;white-space:nowrap}
.b-tabs button:hover{background:var(--color-bg-sunken)}
.b-tabs button[aria-selected="true"]{background:var(--color-action-primary);color:var(--color-text-on-accent)}
.b-view{height:min(74vh,760px);overflow-y:auto;overscroll-behavior:contain;background:#0B0C0E;scrollbar-width:thin;border-radius:0 0 var(--radius-m) var(--radius-m)}
.b-view img{width:100%}
.m-head{margin-top:clamp(70px,9vw,120px)}
.phones{display:grid;grid-auto-flow:column;grid-auto-columns:clamp(220px,22vw,290px);gap:clamp(16px,2vw,28px);overflow-x:auto;scroll-snap-type:x mandatory;scroll-padding-inline:var(--pad);padding:6px var(--pad) 26px;max-width:none!important;margin-left:calc(-1 * var(--pad))!important;margin-right:calc(-1 * var(--pad))!important;scrollbar-width:thin}
.phones figure{scroll-snap-align:start}
.ph{aspect-ratio:390/844;border-radius:34px;border:7px solid #23272C;overflow-y:auto;overscroll-behavior:contain;background:#0B0C0E;box-shadow:var(--shadow);scrollbar-width:none;margin-bottom:12px}
.ph::-webkit-scrollbar{display:none}
.phones figcaption{color:var(--color-text-muted)}
.gal-nav{display:flex;gap:8px;justify-content:flex-end}
.gal-nav button{width:46px;height:46px;border-radius:var(--radius-s);border:1px solid var(--color-border-default);background:var(--color-bg-surface);font:500 18px var(--sans);color:var(--color-text-primary);cursor:pointer}
.gal-nav button:hover{border-color:var(--color-border-strong)}

/* shopify */
.table-wrap{overflow-x:auto;border:1px solid var(--color-border-default);border-radius:var(--radius-m);background:var(--color-bg-page);margin-bottom:14px}
.map{width:100%;min-width:820px;border-collapse:collapse;font-size:14px}
.map th{text-align:left;font:500 10.5px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--color-text-muted);padding:14px 18px;border-bottom:1px solid var(--color-border-default)}
.map td{padding:13px 18px;border-top:1px solid var(--color-border-subtle);vertical-align:top;color:var(--color-text-secondary)}
.map td:first-child{color:var(--color-text-primary);font-weight:500;white-space:nowrap}
.map tr:first-child td{border-top:0}
.kv div{padding:10px 0;border-top:1px solid var(--color-border-subtle)}
.kv div:first-child{border-top:0;padding-top:0}
.kv dt{font-size:14px;font-weight:500}
.kv dd{font-size:14px;color:var(--color-text-secondary)}
.limits{background:var(--color-bg-accent-soft);border:1px solid color-mix(in srgb,var(--color-accent-signal) 40%,transparent);border-radius:var(--radius-m);padding:22px}
.limits ul{list-style:none;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 28px}
.limits li{font-size:14.5px;color:var(--color-text-secondary);padding-left:18px;position:relative}
.limits li::before{content:"";position:absolute;left:0;top:.6em;width:7px;height:7px;border-radius:2px;background:var(--color-accent-signal)}

/* prototype stage: always Graphite */
.stage{--color-text-inverse:#0B0C0E;background:#0B0C0E;color:#F4F5F6;border-top:0}
.stage .prose{color:#B6BBC3}
.stage .num{color:#F5D20B}
.btn{display:inline-flex;align-items:center;gap:10px;text-decoration:none;font:600 15px var(--sans);border-radius:var(--radius-s);padding:14px 22px;background:var(--color-action-primary);color:var(--color-text-on-accent);border:0;cursor:pointer;transition:background-color .2s,box-shadow .3s}
.btn:hover{background:var(--color-action-primary-hover);box-shadow:var(--glow)}
.btn.alt{background:#F4F5F6;color:#0B0C0E}
.btn.alt:hover{background:#fff;box-shadow:none}
.btn.ghost{background:transparent;color:#F4F5F6;box-shadow:inset 0 0 0 1px #33383F}
.btn.ghost:hover{box-shadow:inset 0 0 0 1px #B6BBC3}
.btn.ghost-ink{background:transparent;color:var(--color-text-primary);box-shadow:inset 0 0 0 1px var(--color-border-default)}
.btn.ghost-ink:hover{box-shadow:inset 0 0 0 1px var(--color-border-strong)}
.links{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.links.center{justify-content:center;margin-top:0}
.proto{border-radius:var(--radius-m);aspect-ratio:16/9;background:#0B0C0E;border:1px solid #23272C}
.proto-poster{width:100%;height:100%;object-fit:cover;opacity:.3;filter:blur(6px);border-radius:var(--radius-m)}
.proto-cta{position:absolute;inset:0;display:grid;place-content:center;justify-items:center;gap:12px;text-align:center;padding:16px}
.proto-btns{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.proto-cta p{font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:#8F96A0}
.proto.live{aspect-ratio:auto;height:min(86vh,900px)}
.proto iframe{width:100%;height:100%;border:0;display:block;border-radius:var(--radius-m)}

/* learned + next + footer */
.learn{list-style:none;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:20px;counter-reset:l}
.learn li{background:var(--color-bg-surface);border:1px solid var(--color-border-subtle);border-radius:var(--radius-m);padding:24px;counter-increment:l}
.learn li::before{content:"[ 0" counter(l) " ]";display:block;font:500 11px var(--mono);color:var(--color-text-accent);margin-bottom:14px}
.learn b{display:block;font:600 1.4rem/1.15 var(--display);letter-spacing:-.03em;margin-bottom:10px}
.learn span{color:var(--color-text-secondary);font-size:15px}
.next{padding:clamp(60px,8vw,110px) var(--pad);text-align:center;border-top:1px solid var(--color-border-subtle)}
.next p{font:600 clamp(2.2rem,4.6vw,3.6rem)/1.05 var(--display);letter-spacing:-.04em;margin-bottom:26px}
.foot{padding:28px var(--pad) 40px;border-top:1px solid var(--color-border-subtle);color:var(--color-text-muted);font-size:14px;text-align:center}
.foot b{color:var(--color-text-primary)}

/* reveal */
.js .rv{opacity:0;transform:translateY(24px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.js .rv.in{opacity:1;transform:none}

/* responsive */
@media (max-width:1100px){.toc{display:none}}
@media (max-width:980px){
  .meta,.stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .split,.two{grid-template-columns:minmax(0,1fr)}
  .brief,.learn,.insights{grid-template-columns:minmax(0,1fr)}
  .dec,.dec.flip{grid-template-columns:minmax(0,1fr)}
  .dec.flip .shot{order:0}
  .chain{grid-template-columns:repeat(2,minmax(0,1fr))}
  .chain li::after{display:none}
  .chain .end{grid-column:span 2}
  .limits ul{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:640px){
  .announce{gap:14px;font-size:9.5px}
  .announce span:last-child{display:none}
  .top{grid-template-columns:1fr auto auto}
  .back{font-size:0;gap:0}.back span{font-size:18px}
  .meta{grid-template-columns:minmax(0,1fr)}
  .tok-head,.tok{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .tok-head span:first-child,.tok code{grid-column:span 2}
  .comps{grid-template-columns:minmax(0,1fr)}
  .comps .w2{grid-column:auto}
  .b-view{height:62vh}
  .board-view{max-height:60vh}
  .proto.live{height:80vh}
  .corners::before{left:-5px;top:-5px}.corners::after{right:-5px;bottom:-5px}
}