/* GRGA design-lab kit — shared tokens + instrument components (Brand kit v0.1) */
:root{
  --paper:#EEEDE9; --paper-2:#E4E2DC; --paper-3:#D9D7D0;
  --ink:#0E1A22; --ink-2:#16242C; --ink-3:#22323B;
  --mineral:#C9D2D0; --slate:#4E6E7C; --sage:#7E9382; --moss:#1F2B22; --terra:#AD765B; --oxblood:#5A322D;
  --ember:#F0603A; --ember-ink:#A93C17; --cobalt:#2348F5;
  --f-display:"Inter Tight",system-ui,sans-serif; --f-body:"Inter",system-ui,sans-serif;
  --f-serif:"Instrument Serif",Georgia,serif; --f-mono:"Geist Mono",ui-monospace,monospace;
  --ease-out:cubic-bezier(.16,1,.3,1); --ease-drift:cubic-bezier(.45,.05,.55,.95);
  --grain:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='220' height='220'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0  0 0 0 0 0  0 0 0 0 0  0 0 0 .55 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  /* surface defaults (light / paper) */
  --bg:var(--paper); --fg:var(--ink); --fg-2:#55605F; --line:rgba(14,26,34,.16); --line-2:rgba(14,26,34,.34); --accent-text:var(--ember-ink);
  color-scheme:light;
}
.on-dark{ --bg:var(--ink); --fg:var(--paper); --fg-2:#A7B1B3; --line:rgba(238,237,233,.16); --line-2:rgba(238,237,233,.36); --accent-text:var(--ember); color-scheme:dark; }
*{box-sizing:border-box;margin:0}
html{-webkit-text-size-adjust:100%}
body{background:var(--bg);color:var(--fg);font:400 16px/1.55 var(--f-body);-webkit-font-smoothing:antialiased;overflow-x:hidden}
img,video,canvas{display:block;max-width:100%}
a{color:inherit}
button{font:inherit;color:inherit}
.wrap{max-width:1280px;margin:0 auto;padding:0 32px}
@media (max-width:640px){.wrap{padding:0 16px}}
.mono{font:500 12px/1.4 var(--f-mono);letter-spacing:.06em;text-transform:uppercase}
.mono-n{font:400 13px/1.5 var(--f-mono)}
.fg2{color:var(--fg-2)}
.serif{font-family:var(--f-serif);font-weight:400}
.display{font-family:var(--f-display);font-weight:400;letter-spacing:-.04em;line-height:.98}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
:focus-visible{outline:2px solid var(--ember);outline-offset:3px;border-radius:4px}

/* grain overlay for images / css fields */
.grainy{position:relative;isolation:isolate}
.grainy::after{content:"";position:absolute;inset:0;background:var(--grain);opacity:.2;mix-blend-mode:overlay;pointer-events:none;z-index:2}

/* field canvas */
.field-canvas{position:absolute;inset:0;width:100%;height:100%;z-index:0}

/* pill CTA */
.pill{display:inline-flex;align-items:center;gap:12px;border-radius:999px;padding:7px 7px 7px 20px;min-height:48px;text-decoration:none;font:500 15px var(--f-body);background:var(--fg);color:var(--bg);border:0;cursor:pointer;transition:transform .25s var(--ease-out)}
.pill:hover{transform:translateY(-2px)}
.pill .dot{width:34px;height:34px;border-radius:50%;background:var(--ember);color:var(--ink);display:grid;place-items:center;transition:transform .3s var(--ease-out)}
.pill:hover .dot{transform:rotate(-45deg)}
.ghost{display:inline-flex;align-items:center;gap:8px;min-height:48px;padding:0 18px;border-radius:999px;border:1px solid var(--line-2);text-decoration:none;cursor:pointer;background:transparent}
.ghost:hover{border-color:var(--fg)}

/* instrument bits */
.cross{position:absolute;width:13px;height:13px;pointer-events:none;color:var(--line-2)}
.cross::before,.cross::after{content:"";position:absolute;background:currentColor}
.cross::before{left:6px;top:0;width:1px;height:13px}.cross::after{top:6px;left:0;height:1px;width:13px}
.hairgrid{position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(to right,var(--line) 1px,transparent 1px),linear-gradient(to bottom,var(--line) 1px,transparent 1px)}
.brk{position:relative}
.brk>.c{position:absolute;width:14px;height:14px;border:1px solid var(--line-2);pointer-events:none}
.brk>.c.tl{left:-8px;top:-8px;border-right:0;border-bottom:0}.brk>.c.tr{right:-8px;top:-8px;border-left:0;border-bottom:0}
.brk>.c.bl{left:-8px;bottom:-8px;border-right:0;border-top:0}.brk>.c.br{right:-8px;bottom:-8px;border-left:0;border-top:0}
.glass{background:color-mix(in oklab,var(--ink) 38%,transparent);backdrop-filter:blur(18px) saturate(1.2);-webkit-backdrop-filter:blur(18px) saturate(1.2);border:1px solid rgba(238,237,233,.2);border-radius:14px;color:var(--paper)}
.tag{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border:1px solid var(--line-2);border-radius:999px}
.live-dot{width:7px;height:7px;border-radius:50%;background:var(--ember);box-shadow:0 0 0 0 rgba(240,96,58,.6);animation:pulse 2s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 8px rgba(240,96,58,0)}100%{box-shadow:0 0 0 0 rgba(240,96,58,0)}}

/* ───────── demo shell ───────── */
.demo{--d-fg:var(--fg);--d-fg2:var(--fg-2);--d-line:var(--line);--d-line2:var(--line-2);color:var(--d-fg);display:grid;gap:0;border:1px solid var(--d-line2);border-radius:14px;overflow:hidden;background:color-mix(in oklab,var(--bg) 70%,transparent)}
.demo-head{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:12px 16px;border-bottom:1px solid var(--d-line)}
.demo-head .t{display:flex;align-items:center;gap:8px}
.demo-body{display:grid;grid-template-columns:1fr 260px;min-height:0}
.demo-body.stack{grid-template-columns:1fr}
@media (max-width:820px){.demo-body{grid-template-columns:1fr}}
.demo-stage{position:relative;min-height:300px;border-right:1px solid var(--d-line)}
@media (max-width:820px){.demo-stage{border-right:0;border-bottom:1px solid var(--d-line)}}
.demo-side{padding:16px;display:grid;gap:14px;align-content:start}
.ctl label{display:flex;justify-content:space-between;gap:8px;margin-bottom:4px}
.ctl output{font-family:var(--f-mono);font-size:13px}
.ctl input[type=range]{width:100%;accent-color:var(--ember);min-height:28px;cursor:pointer}
.readout{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--d-line);border:1px solid var(--d-line);border-radius:10px;overflow:hidden}
.readout div{background:var(--bg);padding:10px 12px}
.readout b{display:block;font:400 22px/1.1 var(--f-display);letter-spacing:-.02em;margin-top:2px;font-variant-numeric:tabular-nums}
.btn-run{display:flex;justify-content:space-between;align-items:center;width:100%;min-height:44px;padding:0 14px;border-radius:10px;border:1px solid var(--d-line2);background:transparent;cursor:pointer}
.btn-run:hover{border-color:var(--ember)}
.btn-run[disabled]{opacity:.5;cursor:progress}
.legend{display:flex;flex-wrap:wrap;gap:10px}
.legend span{display:inline-flex;align-items:center;gap:6px}
.legend i{width:10px;height:10px;border-radius:2px;display:inline-block}
.note{font-size:12px;color:var(--d-fg2)}
.seg{display:inline-flex;border:1px solid var(--d-line2);border-radius:999px;padding:3px;gap:2px}
.seg button{border:0;background:transparent;border-radius:999px;padding:6px 14px;min-height:34px;cursor:pointer}
.seg button[aria-pressed=true]{background:var(--d-fg);color:var(--bg)}

/* bridge */
.bridge-stage{position:relative;min-height:240px}
.bridge-stage svg{position:absolute;inset:0;width:100%;height:100%}
.bridge-stage .wire{fill:none;stroke:var(--d-line2);stroke-width:1.2;stroke-dasharray:3 5}
.bridge-stage .wire.hot{stroke:var(--ember);animation:flow 1.2s linear infinite}
@keyframes flow{to{stroke-dashoffset:-16}}
.bnode{position:absolute;transform:translate(-50%,-50%);display:grid;justify-items:center;gap:8px;text-align:center}
.bnode .box{width:64px;height:64px;border-radius:14px;border:1px solid var(--d-line2);display:grid;place-items:center;background:var(--bg);font:500 13px var(--f-mono);transition:border-color .3s,box-shadow .3s}
.bnode.hot .box{border-color:var(--ember);box-shadow:0 0 0 6px rgba(240,96,58,.18)}
.console{font:400 12.5px/1.6 var(--f-mono);padding:12px 16px;border-top:1px solid var(--d-line);height:132px;overflow:auto;color:var(--d-fg2)}
.console .l b{color:var(--d-fg);font-weight:500}
.console .l .k{color:var(--accent-text)}

/* dashboard */
.dash{padding:16px;display:grid;gap:16px}
.bars{display:grid;gap:10px}
.bar-row{display:grid;grid-template-columns:110px 1fr 70px;align-items:center;gap:10px}
.bar-track{position:relative;height:12px;background:color-mix(in oklab,var(--d-fg) 8%,transparent);border-radius:3px}
.bar-fill{position:absolute;inset:0 auto 0 0;border-radius:3px;background:var(--slate);transition:width .6s var(--ease-out),background .3s}
.bar-fill.over{background:var(--ember)}
.bar-target{position:absolute;top:-4px;bottom:-4px;width:1px;background:var(--d-fg)}
.presence{display:flex;align-items:center;gap:6px}
.presence i{width:22px;height:22px;border-radius:50%;border:2px solid var(--bg);margin-left:-8px;display:inline-block}
.presence i:first-child{margin-left:0}

@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

/* ───────── space analytics tool (V4) ───────── */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.sa .demo-body{grid-template-columns:1fr 300px}
@media (max-width:820px){.sa .demo-body{grid-template-columns:1fr}.sa-h2{display:none}}
.sa .demo-body{align-items:start}
.sa-stage{height:min(74vh,660px);background:rgba(10,17,22,.55)}
.sa .demo-side{max-height:min(74vh,660px);overflow:auto;scrollbar-width:thin}
@media (max-width:820px){.sa-stage{height:380px}.sa .demo-side{max-height:none}}
.sa-stage canvas{position:absolute;inset:0;width:100%;height:100%;cursor:crosshair;touch-action:none}
.sa-stage canvas:focus-visible{outline:2px solid var(--ember);outline-offset:-2px}
.sa-hint{position:absolute;right:12px;bottom:10px;color:rgba(238,237,233,.7);pointer-events:none}
.sa-steps{position:absolute;left:12px;top:12px;list-style:none;margin:0;padding:10px 12px;display:grid;gap:4px;min-width:250px;background:rgba(10,17,22,.82);border:1px solid var(--line-2);border-radius:10px;opacity:0;transform:translateY(-4px);transition:opacity .25s,transform .25s var(--ease-out);pointer-events:none}
.sa-steps.on{opacity:1;transform:none}
.sa-steps li{display:flex;justify-content:space-between;gap:16px;animation:saIn .25s var(--ease-out) both}
.sa-steps li.err{color:#F2B48A}
@keyframes saIn{from{opacity:0;transform:translateX(-4px)}}
.sa-layers{flex-wrap:wrap;border-radius:14px}
.sa-layers button{padding:6px 11px}
.sa-desc{font-size:14px;line-height:1.45;min-height:3em}
.sa-rooms{list-style:none;padding:0;margin:6px 0 0;display:grid;gap:5px}
.sa-rooms li{display:grid;grid-template-columns:1fr 70px 28px;gap:8px;align-items:center;font-size:13px}
.sa-rooms li span:first-child{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sa-rooms i{height:4px;border-radius:2px;background:linear-gradient(90deg,#F0603A var(--v),rgba(238,237,233,.14) var(--v))}
.sa-rooms li span:last-child{text-align:right}
.sa-ctl{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.sa-level{min-height:36px;border-radius:999px;border:1px solid var(--d-line2);background:transparent;color:inherit;padding:0 12px}
.sa-level option{color:#0E1A22}
.sa-note{font-size:12px;line-height:1.5}
.sa .btn-run input{display:none}
.sa button[disabled],.sa select[disabled]{opacity:.5;cursor:progress}
.sa-sees{display:flex;flex-wrap:wrap;gap:6px;align-items:center;margin-top:8px;font-size:13px}
.sa-sees .chip{border:1px solid rgba(242,180,138,.45);border-radius:999px;padding:2px 9px}
.sa-sees .chip.here{border-color:var(--d-fg)}
.sa-sees .chip b{font-weight:500;color:#F2B48A}

/* V4 components: logo options, sync scene, work wheel. Loaded after kit.css. */

/* ───────── logo options ───────── */
.lg-stack{display:grid;line-height:1.05}
.lg-sub{font:500 10px var(--f-mono);letter-spacing:.06em;text-transform:uppercase;opacity:.7}
.lg-pick{position:relative}
.lg-btn{min-height:34px;padding:0 12px;border-radius:999px;border:1px solid var(--line-2);background:transparent;color:inherit;cursor:pointer}
.lg-btn b{font-weight:500;color:#F2B48A}
.lg-menu{position:absolute;left:0;top:calc(100% + 8px);width:min(380px,92vw);max-height:76vh;overflow:auto;padding:10px;border-radius:14px;border:1px solid var(--line-2);background:rgba(10,17,22,.94);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);display:grid;gap:4px;z-index:40;box-shadow:0 20px 60px rgba(0,0,0,.45);color:#EEEDE9}
.lg-menu[hidden]{display:none}
.lg-menu p{padding:4px 8px 6px;opacity:.7}
.lg-menu button{display:grid;gap:6px;text-align:left;padding:12px;border-radius:10px;border:1px solid transparent;background:transparent;color:inherit;cursor:pointer}
.lg-menu button:hover{background:rgba(238,237,233,.06)}
.lg-menu button[aria-pressed=true]{border-color:var(--ember)}
.lg-prev{display:flex;align-items:center;gap:14px;font:500 19px var(--f-display);letter-spacing:-.015em}
.lg-prev .lg-sub{font-size:11px}
@media (max-width:560px){.brand .lg-sub{display:none}.lg-btn b,.lg-btn span{display:none}.lg-btn{padding:0 10px}.nav .pill{font-size:0;gap:0;padding:4px}.nav .pill .dot{font-size:14px}}
.lg-d{font-size:13px;color:#A7B1B3;line-height:1.4}

/* ───────── sync scene ───────── */
.sync{height:280vh;position:relative}
.sync-pin{position:sticky;top:0;height:100svh;display:grid;align-items:center;opacity:var(--vis,0);transform:translateY(calc((1 - var(--vis,0)) * 28px)) scale(calc(.97 + var(--vis,0) * .03));will-change:opacity,transform}
.sync.static{height:auto}.sync.static .sync-pin{position:relative;height:auto;padding:120px 0;opacity:1;transform:none}
.sync-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:32px;align-items:center;padding-top:40px}
.sync-copy h2{font-size:clamp(36px,4.2vw,64px)}
.sync-copy>p{color:rgba(238,237,233,.84);font-size:17px;max-width:42ch;margin-top:16px}
.sync-steps{list-style:none;padding:0;margin:24px 0 0;border-top:1px solid var(--line)}
.sync-steps li{display:grid;grid-template-columns:36px 1fr;gap:2px 8px;padding:12px 0;border-bottom:1px solid var(--line);opacity:.42;transition:opacity .4s}
.sync-steps li.on{opacity:1}.sync-steps li.past{opacity:.72}
.sync-steps li>.mono{color:var(--ember);grid-row:span 2;padding-top:3px}
.sync-steps li b{font:500 18px/1.2 var(--f-display);letter-spacing:-.01em}
.sync-steps li>span:last-child{color:#A7B1B3;font-size:15px;grid-column:2}
.sync-stage{position:relative;padding-bottom:84px}
.sync-svg{width:100%;height:auto;max-height:70svh;display:block;overflow:visible;margin:0 auto}
.s-orbit{fill:none;stroke:rgba(238,237,233,.2);stroke-dasharray:2 6}
.s-orbit.faint{stroke:rgba(238,237,233,.08);stroke-dasharray:none}
.s-ticks line{stroke:rgba(238,237,233,.35);stroke-width:1}
.s-cross{stroke:rgba(238,237,233,.6);stroke-width:1}
.s-wire{fill:none;stroke:#F0603A;stroke-width:1.6;stroke-dasharray:1 1;stroke-dashoffset:1}
.s-wire.ghost{stroke:rgba(238,237,233,.16);stroke-width:1;stroke-dasharray:3 5;stroke-dashoffset:0}
.s-peer{fill:none;stroke:#F2B48A;stroke-width:1.4;stroke-dasharray:1 1;stroke-dashoffset:1}
.s-ring{fill:none;stroke:rgba(238,237,233,.14);stroke-width:6}
.s-load{fill:none;stroke:#F0603A;stroke-width:6;stroke-linecap:round;stroke-dasharray:0 100}
.s-core{fill:rgba(10,17,22,.55);stroke:rgba(238,237,233,.45);transition:stroke .4s}
.sync.done .s-core{stroke:#F0603A}
.s-pct{font:300 34px var(--f-display);fill:#EEEDE9;letter-spacing:-.02em}
.s-sub{font:500 10px var(--f-mono);letter-spacing:.12em;fill:rgba(238,237,233,.78)}
.s-sub.dim{fill:rgba(238,237,233,.5)}
.s-node{transition:opacity .3s}
.s-disc{fill:rgba(10,17,22,.72);stroke:rgba(238,237,233,.45);stroke-width:1;transition:stroke .3s}
.s-halo{fill:rgba(240,96,58,0);transition:fill .4s}
.s-node.on .s-disc{stroke:#F0603A}.s-node.on .s-halo{fill:rgba(240,96,58,.13)}
.s-mono{font:500 14px var(--f-mono);fill:#EEEDE9}
.s-label{font:500 10px var(--f-mono);letter-spacing:.08em;fill:rgba(238,237,233,.82)}
.s-packet{fill:#F2B48A}
.sync-log{position:absolute;left:8%;right:8%;bottom:0;display:grid;gap:3px;color:rgba(238,237,233,.66);min-height:5.6em;text-transform:none;letter-spacing:.02em}
.sync-log .who{color:#F0603A;text-transform:uppercase}
.sync-log .new{color:#EEEDE9;animation:saIn .3s var(--ease-out)}
@media (max-width:960px){.sync-grid{grid-template-columns:1fr;gap:4px;padding-top:56px}.sync-stage{order:-1;max-width:400px;margin:0 auto;width:100%;padding-bottom:0}.sync-svg{max-height:40svh}
 .sync-copy>p,.sync-log{display:none}.sync-steps{margin-top:8px}.sync-steps li{padding:7px 0}.sync-steps li>span:last-child{display:none}.sync-steps li.on>span:last-child{display:block}}

/* ───────── work wheel ───────── */
.wh{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:24px;align-items:center}
.wh-area{position:relative;height:min(84vh,760px);overflow:hidden;-webkit-mask-image:linear-gradient(transparent,#000 12%,#000 88%,transparent);mask-image:linear-gradient(transparent,#000 12%,#000 88%,transparent)}
.wh-ring{position:absolute;left:calc(var(--cx) - var(--R));top:calc(var(--cy) - var(--R));width:calc(var(--R) * 2);height:calc(var(--R) * 2);border-radius:50%;border:1px solid rgba(238,237,233,.16);pointer-events:none}
.wh-ring::after{content:"";position:absolute;inset:-30px;border-radius:50%;border:1px dashed rgba(238,237,233,.08)}
.wh-list{list-style:none;margin:0;padding:0;position:absolute;inset:0;outline:none}
.wh-list:focus-visible{outline:2px solid var(--ember);outline-offset:-2px}
.wh-list li{position:absolute;font-size:14px;left:var(--cx);top:var(--cy);transform-origin:0 0;transform:rotate(var(--a)) translate(var(--R),-50%);display:flex;align-items:center;gap:12px;padding:6px 0 6px 18px;white-space:nowrap;cursor:pointer;transition:transform .9s var(--ease-out),opacity .6s;color:rgba(238,237,233,.7);font-size:15px}
.wh-list li::before{content:"";position:absolute;left:-5px;top:50%;width:10px;height:1px;background:rgba(238,237,233,.45)}
.wh-box{display:none}
.wh-list li.on{color:#EEEDE9}
.wh-list li.on::before{background:#F0603A;width:14px}
.wh-list li.on .wh-name{font:300 clamp(22px,2.2vw,32px)/1.1 var(--f-display);letter-spacing:-.02em;white-space:normal;max-width:var(--maxw,420px)}
.wh-list li.on .wh-box{display:grid;place-items:center;width:36px;height:36px;border:1px solid #F0603A;border-radius:6px;color:#F2B48A}
.wh-list li:hover{color:#EEEDE9}
.wh-panel{display:grid;gap:14px;align-content:center}
.wh-panel.in{animation:whIn .7s var(--ease-out)}
@keyframes whIn{from{opacity:0;transform:translateY(10px)}}
.wh-top{display:flex;justify-content:space-between;color:rgba(238,237,233,.72)}
.wh-fig{position:relative;margin:0;aspect-ratio:16/10;border-radius:12px;overflow:hidden;background:#2A1712;border:1px solid rgba(238,237,233,.14)}
.wh-img img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transform:scale(1.05);transition:opacity .8s,transform 1.6s var(--ease-out);filter:url(#duo-warm) contrast(1.06)}
.wh-img img.on{opacity:1;transform:none}
.wh-fig::after{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(110% 90% at 88% 6%,rgba(240,96,58,.22),transparent 58%),linear-gradient(transparent 55%,rgba(18,11,9,.6))}
.wh-ico{position:absolute;left:14px;top:14px;z-index:2;width:64px;height:64px;display:grid;place-items:center;border-radius:10px;border:1px solid rgba(238,237,233,.32);background:rgba(18,11,9,.35);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);color:#EEEDE9}
.wh-fig-c{position:absolute;left:16px;bottom:12px;z-index:2;color:rgba(238,237,233,.85)}
.wh-t{font:400 clamp(28px,3vw,44px)/1.05 var(--f-display);letter-spacing:-.03em}
.wh-ab{color:rgba(238,237,233,.84);max-width:46ch}
.wh-ctl{display:flex;gap:10px;align-items:center}
.wh-btn{width:44px;height:44px;border-radius:50%;border:1px solid var(--line-2);background:transparent;color:inherit;cursor:pointer;font-size:16px}
.wh-btn:hover{border-color:var(--ember)}
@media (max-width:900px){.wh{grid-template-columns:1fr}.wh-area{height:300px}.wh-list li{font-size:13px}.wh-list li.on .wh-name{font-size:20px}}

/* V5: "panel" controls (flat translucent rectangles, mono caps, a square signal), intro, façade, scroll wheel,
   compact tool sidebar. Loaded after kit.css and v4.css. */

/* ───────── panel buttons ───────── */
.btn-o{--pb:rgba(238,237,233,.08);display:inline-flex;align-items:center;gap:12px;min-height:44px;padding:0 18px;background:var(--pb);border:1px solid rgba(238,237,233,.09);border-radius:2px;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);font:500 12.5px/1 var(--f-mono);letter-spacing:.14em;text-transform:uppercase;color:#EEEDE9;text-decoration:none;cursor:pointer;
  transition:background .25s,border-color .25s,color .25s}
.btn-o:hover{--pb:rgba(238,237,233,.15);border-color:rgba(238,237,233,.2)}
.btn-o:active{--pb:rgba(238,237,233,.2)}
.btn-o .sq,.sq{display:inline-block;width:9px;height:9px;background:var(--ember);flex:none}
.btn-o .arr{margin-left:6px;opacity:.7;transition:transform .3s var(--ease-out)}
.btn-o:hover .arr{transform:translateX(3px)}
.btn-o.primary{--pb:rgba(238,237,233,.13)}
.btn-o.sm{min-height:34px;padding:0 12px;font-size:11px;gap:8px}
.btn-o.sm .sq{width:7px;height:7px}
.btn-o[aria-pressed=true]{--pb:rgba(238,237,233,.2);border-color:rgba(238,237,233,.28)}
.btn-o[aria-pressed=false] .sq{background:transparent;outline:1px solid rgba(238,237,233,.5);outline-offset:-1px}
.btn-o[disabled]{opacity:.45;cursor:progress}
.paper .btn-o{--pb:rgba(14,26,34,.06);border-color:rgba(14,26,34,.12);color:var(--ink)}
.on-val{color:#9BE39B}
/* frame ticks (the corner marks around a panel group) */
.frame{position:relative}
.frame::before,.frame::after{content:"";position:absolute;pointer-events:none;width:calc(100% + 72px);height:calc(100% + 72px);left:-36px;top:-36px;
  background:linear-gradient(#EEEDE9,#EEEDE9) 36px 0/1px 26px no-repeat,linear-gradient(#EEEDE9,#EEEDE9) 0 36px/26px 1px no-repeat,
  linear-gradient(#EEEDE9,#EEEDE9) calc(100% - 36px) 0/1px 26px no-repeat,linear-gradient(#EEEDE9,#EEEDE9) 100% 36px/26px 1px no-repeat;opacity:.55}
.frame::after{transform:scaleY(-1)}

/* ───────── nav as one panel ───────── */
.nav5{position:fixed;top:14px;left:0;right:0;z-index:20}
.nav5 .bar{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:56px;padding:6px 6px 6px 18px;background:rgba(238,237,233,.07);border:1px solid rgba(238,237,233,.08);border-radius:2px;
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);transition:background .3s}
.nav5.solid .bar{background:rgba(16,24,30,.72)}
.nav5 .brand{display:flex;align-items:center;gap:10px;text-decoration:none;font:600 16px var(--f-display);letter-spacing:-.02em;color:#EEEDE9;min-height:44px}
.nav5 ul{display:flex;gap:4px;list-style:none;margin:0;padding:0}
.nav5 ul a{display:inline-flex;align-items:center;min-height:44px;padding:0 14px;font:500 12px var(--f-mono);letter-spacing:.14em;text-transform:uppercase;color:rgba(238,237,233,.78);text-decoration:none}
.nav5 ul a:hover{color:#EEEDE9}
@media (max-width:900px){.nav5 ul{display:none}.nav5 .btn-o{padding:0 12px}.nav5 .btn-o .lbl{display:none}}

/* ───────── page seam: dark sections into paper ───────── */
.paper{position:relative}
.paper::before{content:"";position:absolute;left:0;right:0;top:-180px;height:180px;background:linear-gradient(rgba(238,237,233,0),var(--paper));pointer-events:none}
.paper>.sec:first-child{padding-top:140px}

/* ───────── tool sidebar, compact (fits the stage height) ───────── */
.v5 .sa .demo-body{grid-template-columns:1fr 290px}
.v5 .sa .demo-side{max-height:none;overflow:visible;gap:10px;padding:14px}
.v5 .sa-layers{display:grid;grid-template-columns:1fr 1fr;gap:4px;border:0;padding:0;border-radius:0}
.v5 .sa-layers button{display:flex;align-items:center;gap:8px;min-height:32px;padding:0 10px;border-radius:2px;background:rgba(238,237,233,.06);border:1px solid rgba(238,237,233,.08);
  font:500 10.5px var(--f-mono);letter-spacing:.12em;text-transform:uppercase;color:rgba(238,237,233,.8)}
.v5 .sa-layers button::before{content:"";width:7px;height:7px;outline:1px solid rgba(238,237,233,.5);outline-offset:-1px}
.v5 .sa-layers button[aria-pressed=true]{background:rgba(238,237,233,.16);color:#EEEDE9}
.v5 .sa-layers button[aria-pressed=true]::before{background:var(--ember);outline:0}
.v5 .sa-desc{font-size:12.5px;line-height:1.4;min-height:0;margin:0}
.v5 .sa .readout{grid-template-columns:1fr;gap:0;background:none;border:0;border-top:1px solid var(--line);border-radius:0}
.v5 .sa .readout div{display:flex;justify-content:space-between;align-items:baseline;gap:8px;padding:5px 0;background:none !important;border-bottom:1px solid var(--line)}
.v5 .sa .readout .mono{font-size:10.5px}
.v5 .sa .readout b{display:inline;font:400 15px var(--f-display);margin:0;text-align:right}
.v5 .sa-side-h{display:block;margin:2px 0 4px;font-size:10.5px}
.v5 .sa-sees{margin-top:6px;font-size:12px;gap:4px}
.v5 .sa-sees .chip{border-radius:2px;padding:1px 7px}
.v5 .sa-rooms{gap:3px;margin-top:4px}
.v5 .sa-rooms li{font-size:12px;grid-template-columns:1fr 60px 24px}
.v5 .sa-rooms li:nth-child(n+5){display:none}
.v5 .sa-ctl{gap:6px}
.v5 .sa-ctl .seg{border:0;padding:0;gap:4px}
.v5 .sa-ctl .seg button{min-height:30px;padding:0 10px;border-radius:2px;background:rgba(238,237,233,.06);border:1px solid rgba(238,237,233,.08);font:500 10.5px var(--f-mono);letter-spacing:.1em;color:#EEEDE9}
.v5 .sa-ctl .seg button[aria-pressed=true]{background:rgba(238,237,233,.18)}
.v5 .sa .btn-run{min-height:36px;border-radius:2px;background:rgba(238,237,233,.08);border:1px solid rgba(238,237,233,.09);font:500 11px var(--f-mono);letter-spacing:.12em;text-transform:uppercase;padding:0 12px}
.v5 .sa .btn-run span:last-child{opacity:.6}
.v5 .sa-note{display:none}
.v5 .sa{border-radius:4px}
@media (max-width:820px){.v5 .sa .demo-body{grid-template-columns:1fr}}

/* ───────── sync tiles ───────── */
.s-disc.tile{fill:rgba(28,22,24,.78);stroke:rgba(238,237,233,.14);rx:2}
.s-node.on .s-disc.tile{stroke:rgba(240,96,58,.7)}
.s-sq{fill:transparent;stroke:rgba(238,237,233,.55);stroke-width:1}
.s-node.on .s-sq{fill:#F0603A;stroke:none}
.s-label.in{font-size:10.5px;letter-spacing:.12em}
.s-halo{rx:3}

/* ───────── façade ───────── */
.fx{border:1px solid rgba(238,237,233,.1);border-radius:4px;background:rgba(10,16,12,.45);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);overflow:hidden}
.fx-head{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:12px 16px;border-bottom:1px solid rgba(238,237,233,.1)}
.fx-head span:first-child{display:inline-flex;align-items:center;gap:10px}
.fx-body{display:grid;grid-template-columns:1fr 300px}
.fx-stage{position:relative;height:min(70vh,620px);border-right:1px solid rgba(238,237,233,.1);touch-action:none}
.fx-stage canvas{position:absolute;inset:0;width:100%;height:100%;cursor:grab}
.fx-stage canvas:active{cursor:grabbing}
.fx-tag{position:absolute;right:14px;bottom:12px;color:rgba(238,237,233,.6);transition:opacity .4s;pointer-events:none}
.fx-side{padding:16px;display:grid;gap:12px;align-content:start}
.fx-sl{display:grid;grid-template-columns:1fr auto;gap:2px 8px;align-items:center}
.fx-sl .mono{font-size:10.5px;color:rgba(238,237,233,.75)}
.fx-sl output{font:400 14px var(--f-display);font-variant-numeric:tabular-nums}
.fx-sl input{grid-column:1/-1;-webkit-appearance:none;appearance:none;width:100%;height:22px;background:transparent;cursor:pointer;margin:0}
.fx-sl input::-webkit-slider-runnable-track{height:1px;background:linear-gradient(90deg,#F0603A var(--p,50%),rgba(238,237,233,.25) var(--p,50%))}
.fx-sl input::-moz-range-track{height:1px;background:rgba(238,237,233,.25)}
.fx-sl input::-moz-range-progress{height:1px;background:#F0603A}
.fx-sl input::-webkit-slider-thumb{-webkit-appearance:none;width:11px;height:11px;margin-top:-5px;background:#EEEDE9;border:0;border-radius:0}
.fx-sl input::-moz-range-thumb{width:11px;height:11px;background:#EEEDE9;border:0;border-radius:0}
.fx-sl input:focus-visible{outline:2px solid var(--ember);outline-offset:2px}
.fx-read{margin:0;border-top:1px solid rgba(238,237,233,.12)}
.fx-read div{display:flex;justify-content:space-between;align-items:baseline;padding:5px 0;border-bottom:1px solid rgba(238,237,233,.12)}
.fx-read dt{font-size:10.5px;color:rgba(238,237,233,.7)}
.fx-read dd{margin:0;font:400 15px var(--f-display);font-variant-numeric:tabular-nums}
.fx-keys{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}
.fx-keys div{display:grid;gap:3px;font-size:11px;line-height:1.25}
.fx-keys i{width:16px;height:9px;background:var(--c)}
.fx-keys .mono{font-size:9.5px}
.fx-btns{display:flex;gap:6px}
.fx-btns .btn-o{flex:1;justify-content:center;padding:0 10px;font-size:11px}
@media (max-width:860px){.fx-body{grid-template-columns:1fr}.fx-stage{height:400px;border-right:0;border-bottom:1px solid rgba(238,237,233,.1)}}

/* ───────── scroll wheel ───────── */
.whs.whs-on{height:calc(100svh + 13 * 42svh);position:relative}
.whs-on .whs-pin{position:sticky;top:0;height:100svh;display:grid;align-content:center;opacity:var(--vis,0)}
.whs-on .wh-area{height:min(74vh,700px)}
.wh.scroll .wh-list li{transition:opacity .2s}
.wh-panel{transition:opacity .5s,transform .6s var(--ease-out)}
.wh-panel.hide{opacity:0;transform:translateX(28px);pointer-events:none}
.whs .sec-h{margin-bottom:12px;padding-top:70px}

/* ───────── intro ───────── */
html.intro-on,html.intro-on body{overflow:hidden;overscroll-behavior:none}
.intro{position:fixed;inset:0;z-index:100;cursor:pointer;transition:opacity .6s,transform .7s var(--ease-out);
  background:radial-gradient(70% 65% at 100% 100%,rgba(190,84,52,.62),transparent 70%),radial-gradient(75% 70% at 0% 0%,rgba(104,126,132,.5),transparent 70%),linear-gradient(160deg,#25333A,#1A2329 55%,#1E1E1F)}
.intro .intro-glow{position:absolute;inset:0;pointer-events:none;opacity:0;transition:opacity .9s;background:radial-gradient(55% 60% at 42% 50%,rgba(240,96,58,.36),transparent 70%),radial-gradient(70% 70% at 70% 60%,rgba(78,42,38,.75),transparent 75%),rgba(20,14,13,.55)}
.intro[data-phase=logo] .intro-glow{opacity:1}
.intro::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:.2;mix-blend-mode:overlay;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}
.intro.out{opacity:0;transform:translateY(-2%);pointer-events:none}
.intro-cv{position:absolute;inset:0;width:100%;height:100%}
.intro-frame i{position:absolute;width:14px;height:14px}
.intro-frame i::before,.intro-frame i::after{content:"";position:absolute;background:rgba(238,237,233,.6)}
.intro-frame i::before{left:6.5px;top:0;width:1px;height:14px}.intro-frame i::after{top:6.5px;left:0;height:1px;width:14px}
.intro-frame i:nth-child(1){left:40px;top:40px}.intro-frame i:nth-child(2){right:40px;top:40px}.intro-frame i:nth-child(3){left:40px;bottom:40px}.intro-frame i:nth-child(4){right:40px;bottom:40px}
.intro-logo{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;gap:clamp(16px,2.4vw,30px);color:#EEEDE9;pointer-events:none}
.intro-mark{width:clamp(96px,13vw,170px);height:auto;overflow:visible}
.intro-mark .d{transform-box:fill-box;transform-origin:center;opacity:0;translate:-30px 0;scale:.3;filter:blur(5px)}
.intro-logo.on .intro-mark .d{animation:dotIn .8s var(--ease-out) forwards}
@keyframes dotIn{to{opacity:1;translate:0 0;scale:1;filter:blur(0)}}
.intro-mark .d:nth-of-type(2){animation-delay:.07s}.intro-mark .d:nth-of-type(3){animation-delay:.14s}.intro-mark .d:nth-of-type(4){animation-delay:.21s}
.intro-mark .d:nth-of-type(5){animation-delay:.28s}.intro-mark .d:nth-of-type(6){animation-delay:.35s}
.intro-logo.on .intro-mark>.d{animation-delay:.5s}
@keyframes nodeIn{to{opacity:1;transform:none;filter:blur(0)}}
.intro-name{display:grid;font:500 clamp(30px,4.2vw,56px)/1 var(--f-display);letter-spacing:-.035em}
.intro-name span{opacity:0;transform:translateY(10px);filter:blur(4px)}
.intro-name .mono{font-size:clamp(11px,1vw,13px);letter-spacing:.16em;margin-top:12px;color:rgba(238,237,233,.75)}
.intro-logo.on .intro-name span{animation:nodeIn .7s var(--ease-out) forwards}
.intro-logo.on .intro-name span:nth-child(1){animation-delay:.25s}.intro-logo.on .intro-name span:nth-child(2){animation-delay:.35s}.intro-logo.on .intro-name span:nth-child(3){animation-delay:.55s}
.intro-prog{position:absolute;left:0;right:0;bottom:0;height:2px;background:rgba(238,237,233,.1)}
.intro-prog i{position:absolute;inset:0;background:#EEEDE9;transform-origin:0 0;transform:scaleX(0)}
.intro-skip{position:absolute;top:28px;right:72px;z-index:2;min-height:40px;padding:0 14px;background:rgba(238,237,233,.08);border:1px solid rgba(238,237,233,.12);border-radius:2px;color:#EEEDE9;font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;cursor:pointer;opacity:0}
.intro-skip:focus-visible{opacity:1;outline:2px solid var(--ember);outline-offset:2px}
@media (max-width:600px){.intro-logo{flex-direction:column;text-align:center}
  .intro-name{grid-template-columns:auto auto;justify-content:center;column-gap:.24em;font-size:clamp(34px,10vw,44px)}.intro-name .mono{grid-column:1/-1}}
.v5 .wh-btn{border-radius:2px;width:44px;padding:0;justify-content:center;font-family:var(--f-display);letter-spacing:0}
.v5 .sa .demo-side{grid-template-columns:auto 1fr;gap:8px 8px}
.v5 .sa .demo-side>*{grid-column:1/-1}
.v5 .sa .demo-side>.sa-ctl{grid-column:1/2}
.v5 .sa .demo-side>.btn-run{grid-column:2/3}
.v5 .sa-ctl>.mono{display:none}
.v5 .sa .btn-run span:first-child{display:none}
.v5 .sa .btn-run span:nth-of-type(2){opacity:1}
.v5 .sa .btn-run span:nth-of-type(2)::before{content:"Load "}
.v5 .sa-layers button{min-height:30px}
.v5 .sa-desc{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;font-size:12px}
.v5 .sa .readout div{padding:4px 0}
.v5 .sa-sees{flex-wrap:nowrap;overflow:hidden}
.v5 .sa-sees .chip{white-space:nowrap}
.v5 .sa-sees>:nth-child(n+5){display:none}
.v5 .sa-rooms li:nth-child(n+4){display:none}
.fx-btns .btn-o{letter-spacing:.08em;white-space:nowrap}

/* ───────── 02 demos: tabs + WFC ───────── */
.d2-tabs{display:flex;gap:6px;margin:0 0 14px;flex-wrap:wrap}
.wf .fx-stage{height:min(66vh,600px)}
.wf .fx-side{gap:10px}
.wf-keys{display:grid;grid-template-columns:1fr 1fr;gap:5px 10px}
.wf-keys span{display:flex;align-items:center;gap:8px;font-size:10px;color:rgba(238,237,233,.8)}
.wf-keys i{width:8px;height:8px;background:var(--c);opacity:var(--o);flex:none}
.wf .wf-send{width:100%;justify-content:center;font-size:11px;letter-spacing:.08em}
.wf-iters{display:grid;grid-template-columns:repeat(8,minmax(0,1fr));border-top:1px solid rgba(238,237,233,.1)}
.wf-it{display:grid;grid-template-columns:1fr auto;align-items:center;gap:2px 6px;padding:8px 10px 10px;background:transparent;border:0;border-right:1px solid rgba(238,237,233,.1);color:#EEEDE9;cursor:pointer;text-align:left;font:inherit}
.wf-it:last-child{border-right:0}
.wf-it canvas{grid-column:1/-1;width:100%;height:64px}
.wf-it .mono{font-size:10px;display:inline-flex;align-items:center;gap:6px}
.wf-it .sq{width:7px;height:7px}
.wf-it.on{background:rgba(238,237,233,.09);box-shadow:inset 0 -2px 0 #F0603A}
.wf-it:not(.empty):hover{background:rgba(238,237,233,.05)}
.wf-it:focus-visible{outline:2px solid var(--ember);outline-offset:-2px}
.wf-it.empty{place-items:center;grid-template-columns:1fr;cursor:default;min-height:96px}
@media (max-width:860px){.wf-iters{grid-template-columns:repeat(4,minmax(0,1fr))}.wf-it:nth-child(4){border-right:0}}
.whs-pin>.wrap,.sync-pin>.wrap{width:100%;box-sizing:border-box}

/* ───────── hero: one window, the ecosystem diagram ───────── */
.v5 .hero{height:100svh;min-height:640px;grid-template-rows:minmax(0,1fr) auto;padding-top:84px}
.v5 .hero>.wrap{width:100%}
.v5 .hero-main{min-height:0;height:100%;grid-template-columns:minmax(0,.82fr) minmax(0,1.18fr)}
.v5 .hero h1{font-size:clamp(44px,min(6.2vw,10.4vh),108px)}
.v5 .hero .lede{margin-top:clamp(14px,2.6vh,28px)}
.v5 .hero .ctas{margin-top:clamp(18px,3.4vh,36px)}
.v5 .hero-main>div>.mono:first-child{margin-bottom:clamp(14px,2.6vh,28px) !important}
.eco{position:relative;height:100%;min-height:0;margin:0}
.eco canvas{position:absolute;inset:0;width:100%;height:100%}
.eco-log{position:absolute;left:8px;bottom:8px;width:min(330px,40%);display:grid;gap:3px;font-size:10.5px;color:rgba(238,237,233,.45);pointer-events:none;text-align:left}
.eco-log div{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;transition:color .4s}
.eco-log .new{color:rgba(238,237,233,.92)}
.eco-log .who{color:#F0603A}.eco-log .who2{color:#F2B48A}
.v5 .hero-foot{display:flex;flex-wrap:wrap;gap:10px clamp(32px,4.6vw,76px);padding:16px 0 20px}
@media (max-width:960px){.v5 .hero{height:auto;min-height:100svh}.eco{height:min(92vw,520px);margin:0 -8px}}
/* ───────── multilevel tool ───────── */
.sk-floors li{cursor:pointer;border-radius:2px;padding:2px 4px;margin:0 -4px}
.sk-floors li.on{background:rgba(238,237,233,.08)}
.sk-floors li.on span:first-child::before{content:"";display:inline-block;width:6px;height:6px;background:#F0603A;margin-right:7px;vertical-align:middle}
.sync-eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12px;letter-spacing:.14em;color:rgba(238,237,233,.8);margin-bottom:18px}
/* ───────── façade: more controls + drawings sheet ───────── */
.fx .fx-stage{height:min(76vh,690px)}
.fx-side{gap:10px}
.fx-sl input{height:18px}
.fx-dwg-btn{width:100%;justify-content:center;font-size:11px;letter-spacing:.08em}
.fx-dwg{position:absolute;inset:0;z-index:3;background:rgba(10,15,12,.97);display:grid;grid-template-rows:auto minmax(0,1fr) auto;animation:dwgIn .35s var(--ease-out)}
@keyframes dwgIn{from{opacity:0;transform:translateY(8px)}}
.fx-dwg[hidden]{display:none}
.fx-dwg-h{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:8px 8px 8px 14px;border-bottom:1px solid rgba(238,237,233,.12);font-size:11px;letter-spacing:.12em;text-transform:uppercase}
.fx-dwg-b{display:grid;grid-template-columns:minmax(0,1fr) 280px;min-height:0}
.fx-dwg-cv{width:100%;height:100%;display:block;min-height:0}
.fx-sch{border-left:1px solid rgba(238,237,233,.12);padding:12px 14px;overflow:auto;font-size:11.5px;scrollbar-width:thin}
.fx-sch-h{font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:#F2B48A;margin:2px 0 6px}
.fx-sch table{width:100%;border-collapse:collapse;margin-bottom:14px;font-variant-numeric:tabular-nums}
.fx-sch th{font:500 9.5px var(--f-mono);letter-spacing:.1em;text-transform:uppercase;color:rgba(238,237,233,.55);text-align:left;padding:3px 0;border-bottom:1px solid rgba(238,237,233,.16)}
.fx-sch td{padding:4px 0;border-bottom:1px solid rgba(238,237,233,.08);color:rgba(238,237,233,.88)}
.fx-sch th:not(:first-child),.fx-sch td:not(:first-child){text-align:right}
.fx-sch td i{display:inline-block;width:7px;height:7px;background:var(--c);margin-right:6px}
.fx-tot{margin:0}
.fx-tot div{display:flex;justify-content:space-between;align-items:baseline;padding:4px 0;border-bottom:1px solid rgba(238,237,233,.12)}
.fx-tot dt{font-size:10px;color:rgba(238,237,233,.7)}.fx-tot dd{margin:0;font:400 14px var(--f-display)}
.fx-dwg-f{display:flex;justify-content:space-between;gap:12px;padding:7px 14px;border-top:1px solid rgba(238,237,233,.12);font-size:9.5px;letter-spacing:.12em;text-transform:uppercase;color:rgba(238,237,233,.55)}
@media (max-width:860px){.fx-dwg-b{grid-template-columns:1fr;grid-template-rows:minmax(0,1fr) 200px}.fx-sch{border-left:0;border-top:1px solid rgba(238,237,233,.12)}.fx-dwg-f span:nth-child(n+3){display:none}}
/* ───────── project story window ───────── */
html.st-on{overflow:hidden}
.st{position:fixed;inset:0;z-index:110;display:grid;place-items:center;pointer-events:none;opacity:0;transition:opacity .35s}
.st.on{opacity:1;pointer-events:auto}
.st-bg{position:absolute;inset:0;background:rgba(8,12,14,.55);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.st-win{position:relative;width:min(1040px,calc(100vw - 32px));height:min(480px,calc(100svh - 64px));display:grid;grid-template-rows:auto minmax(0,1fr);background:rgba(22,16,14,.88);border:1px solid rgba(238,237,233,.12);border-radius:4px;
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);overflow:hidden;transform:translateY(14px) scale(.985);transition:transform .45s var(--ease-out);color:#EEEDE9}
.st.on .st-win{transform:none}
.st-h{display:flex;align-items:center;gap:16px;padding:8px 8px 8px 16px;border-bottom:1px solid rgba(238,237,233,.1);font-size:11px;letter-spacing:.12em;text-transform:uppercase}
.st-t{display:inline-flex;align-items:center;gap:10px;flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.st-n{color:rgba(238,237,233,.6)}
.st-x{min-height:34px;padding:0 12px;background:rgba(238,237,233,.08);border:1px solid rgba(238,237,233,.1);border-radius:2px;color:inherit;font:inherit;letter-spacing:.12em;text-transform:uppercase;cursor:pointer}
.st-x:hover{background:rgba(238,237,233,.15)}
.st-x:focus-visible,.st-track:focus-visible,.st-next:focus-visible{outline:2px solid var(--ember);outline-offset:-2px}
.st-track{display:flex;gap:28px;padding:20px 24px 24px;overflow-x:auto;overflow-y:hidden;scrollbar-width:none;min-height:0}
.st-track::-webkit-scrollbar{display:none}
.st-s{flex:none;height:100%;min-height:0;display:grid;grid-template-rows:minmax(0,1fr) auto;gap:10px}
.st-img{margin:0;height:100%;min-height:0;min-width:180px;border-radius:3px;overflow:hidden;border:1px solid rgba(238,237,233,.12);background:#2A1712}
.st-img img{height:100%;width:auto;display:block;filter:url(#duo-warm) contrast(1.06)}
.st-cap{max-width:44ch;font-size:12.5px;line-height:1.4;color:rgba(238,237,233,.78);margin:0}
.st-k{display:block;font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:#F2B48A;margin-bottom:4px}
.st-cover{grid-template-rows:100%;grid-template-columns:250px auto;gap:24px}
.st-txt{display:flex;flex-direction:column;justify-content:flex-end;gap:10px}
.st-txt h3{font:400 34px/1.02 var(--f-display);letter-spacing:-.03em;margin:0}
.st-ab{font-size:12.5px;line-height:1.45;color:rgba(238,237,233,.78);margin:0}
.st-tools{display:flex;flex-wrap:wrap;gap:4px;list-style:none;margin:0;padding:0}
.st-tools li{font-size:9.5px;letter-spacing:.1em;text-transform:uppercase;padding:3px 7px;border:1px solid rgba(238,237,233,.16);border-radius:2px;color:rgba(238,237,233,.8)}
.st-note{width:300px;grid-template-rows:none;align-content:end}
.st-big{font:400 21px/1.28 var(--f-display);letter-spacing:-.02em;margin:0}
.st-end{width:250px;grid-template-rows:none;align-content:end;gap:16px}
.st-links{display:flex;flex-wrap:wrap;gap:6px}
.st-next{display:grid;gap:4px;text-align:left;background:none;border:0;border-top:1px solid rgba(238,237,233,.16);padding:12px 0 0;color:inherit;cursor:pointer;font:inherit}
.st-nt{font:400 24px/1.1 var(--f-display);letter-spacing:-.02em}
.st-next:hover .st-nt{color:#F2B48A}
.st-hint{font-size:10px;color:rgba(238,237,233,.5);letter-spacing:.12em;text-transform:uppercase;margin:0}
.st-bar{position:absolute;left:0;right:0;bottom:0;height:2px;background:rgba(238,237,233,.08)}
.st-bar i{position:absolute;inset:0;background:#F0603A;transform-origin:0 0;transform:scaleX(0)}
@media (max-width:640px){.st-cover{grid-template-columns:1fr;grid-template-rows:auto minmax(0,1fr)}.st-txt h3{font-size:26px}}
.fx-stage .fx-dwg-cv{position:static;inset:auto;cursor:default}
.fx-sch th:not(:first-child),.fx-sch td:not(:first-child){padding-left:8px;white-space:nowrap}
.st-s:not(.st-cover):not(.st-note):not(.st-end){grid-template-rows:minmax(0,1fr) 66px}
.st-cap{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
/* ───────── round 3e: each chapter (title + tool) fits one window ───────── */
.v5 .chapter{height:100svh;min-height:620px;padding:84px 0 18px;display:flex;flex-direction:column}
.v5 .chapter>.wrap{flex:1;min-height:0;width:100%;display:flex;flex-direction:column}
.v5 .ch-head{margin-bottom:16px;grid-template-columns:64px minmax(0,1.25fr) minmax(0,1fr);gap:20px;align-items:end}
.v5 .ch-head .ch-num{font-size:clamp(26px,4.4vh,44px)}
.v5 .ch-head h2{font-size:clamp(30px,min(3.4vw,5.8vh),58px)}
.v5 .ch-head p{font-size:15px;line-height:1.45}
.v5 #d-space,.v5 #d-facade,.v5 #d-wfc{flex:1;min-height:0;display:flex;flex-direction:column}
.v5 #d-space>.demo,.v5 .chapter .fx{flex:1;min-height:0;display:flex;flex-direction:column}
.v5 #d-space .demo-body,.v5 .chapter .fx-body{flex:1;min-height:0;grid-template-rows:minmax(0,1fr);align-items:stretch}
.v5 .chapter .sa-stage,.v5 .chapter .fx .fx-stage{height:auto;min-height:0}
.v5 .chapter .sa .demo-side,.v5 .chapter .fx-side{overflow:auto;min-height:0;scrollbar-width:thin}
.v5 .chapter .fx-side{gap:8px;padding:12px 14px}
.v5 .chapter .fx-sl input{height:16px}
.v5 .chapter .fx-read div,.v5 .chapter .fx-tot div{padding:3px 0}
.v5 .chapter .wf-it canvas{height:52px}
@media (max-width:860px){.v5 .chapter{height:auto;min-height:100svh;padding:110px 0 60px}.v5 .chapter .sa-stage,.v5 .chapter .fx .fx-stage{height:420px}}
/* labels: off by default, a small switch in each stage */
.lbl-tg{position:absolute;left:12px;bottom:10px;z-index:2}
.lbl-tg.btn-o{min-height:28px;padding:0 10px;font-size:10px;gap:7px;background:rgba(10,15,18,.5)}
.lbl-tg .sq{width:6px;height:6px}
/* work wheel: fixed heights, soft swaps */
.wh-panel.in{animation:none}
.wh-t{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:clamp(26px,2.5vw,40px)}
.wh-ab{min-height:4.35em;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.wh-top,.wh-t,.wh-ab,.wh-ico,.wh-fig-c{transition:opacity .45s var(--ease-out),transform .55s var(--ease-out)}
.wh-panel.sw .wh-t,.wh-panel.sw .wh-ab,.wh-panel.sw .wh-top,.wh-panel.sw .wh-ico,.wh-panel.sw .wh-fig-c{opacity:0;transform:translateY(4px);transition-duration:.2s}
.wh-img img{transition:opacity 1.1s var(--ease-out),transform 2s var(--ease-out)}
.v5 .chapter{padding-top:92px}
.v5 .chapter .wf .fx-side{gap:6px}
.v5 .chapter .wf-keys{grid-template-columns:repeat(3,1fr);gap:3px 8px}
.v5 .chapter .wf .fx-read div{padding:2px 0}
.v5 .chapter .wf .fx-btns .btn-o,.v5 .chapter .wf .wf-send{min-height:38px}
.wh-ab{height:4.4em;min-height:0;line-height:1.45}.wh-t{line-height:1.1;height:1.15em}
/* ───────── round 3f: quieter, more compact tool sidebars ───────── */
.v5 .chapter .sa .demo-side{gap:7px;padding:12px}
.v5 .chapter .sa-layers{gap:3px}
.v5 .chapter .sa-layers button{min-height:26px;padding:0 8px;font-size:9.5px;letter-spacing:.1em;font-weight:400;color:rgba(238,237,233,.62);background:rgba(238,237,233,.04)}
.v5 .chapter .sa-layers button[aria-pressed=true]{background:rgba(238,237,233,.11);color:rgba(238,237,233,.92)}
.v5 .chapter .sa-layers button::before{width:6px;height:6px}
.v5 .chapter .sa-desc{font-size:11.5px;line-height:1.4;color:rgba(238,237,233,.55)}
.v5 .chapter .sa-side-h,.v5 .chapter .sa .demo-side>div>.mono.fg2{font-size:9px;letter-spacing:.14em;color:rgba(238,237,233,.45);margin:0 0 2px}
.v5 .chapter .sa .readout div{padding:2.5px 0;border-color:rgba(238,237,233,.07)}
.v5 .chapter .sa .readout .mono{font-size:9px;color:rgba(238,237,233,.5)}
.v5 .chapter .sa .readout b{font:400 12.5px var(--f-display);color:rgba(238,237,233,.82)}
.v5 .chapter .sk-floors li{font-size:11.5px;color:rgba(238,237,233,.75);grid-template-columns:1fr 46px 22px;padding:1px 4px}
.v5 .chapter .sk-floors li .mono{font-size:10px}
.v5 .chapter .sk-floors li i{height:2px}
.v5 .chapter .sa-sees{display:block;white-space:normal;overflow:visible;font-size:11px;line-height:1.5;color:rgba(238,237,233,.6);margin-top:4px}
.v5 .chapter .sa-sees>.mono{font-size:9px;letter-spacing:.14em;color:rgba(238,237,233,.45);margin-right:6px}
.v5 .chapter .sa-sees .chip{display:inline;border:0;padding:0;background:none;border-radius:0;margin-right:8px;color:rgba(238,237,233,.75);white-space:nowrap}
.v5 .chapter .sa-sees .chip b{font-weight:400;color:rgba(242,180,138,.85)}
.v5 .chapter .sa-sees .chip.here{color:rgba(238,237,233,.95)}
.v5 .chapter .sa-sees>:nth-child(n+5){display:inline}
.v5 .chapter .sa-ctl .seg button,.v5 .chapter .sa .btn-run{min-height:28px;height:28px;padding:0 9px;font-size:9.5px;letter-spacing:.1em;color:rgba(238,237,233,.75);background:rgba(238,237,233,.05);white-space:nowrap}
.v5 .chapter .sa-ctl .seg button[aria-pressed=true]{background:rgba(238,237,233,.13);color:rgba(238,237,233,.92)}
.v5 .chapter .sa .btn-run{display:flex;align-items:center;justify-content:center}
.v5 .chapter .sa .btn-run span:nth-of-type(2){font-size:0}
.v5 .chapter .sa .btn-run span:nth-of-type(2)::before{content:"Load JSON";font-size:9.5px}
/* façade + WFC sidebars */
.v5 .chapter .fx-sl .mono{font-size:9px;color:rgba(238,237,233,.55)}
.v5 .chapter .fx-sl output{font-size:12.5px;color:rgba(238,237,233,.82)}
.v5 .chapter .fx-read dt{font-size:9px;color:rgba(238,237,233,.5)}
.v5 .chapter .fx-read dd{font-size:12.5px;color:rgba(238,237,233,.82)}
.v5 .chapter .fx-read div{border-color:rgba(238,237,233,.07)}
.v5 .chapter .fx-keys .mono,.v5 .chapter .wf-keys span{font-size:9px;color:rgba(238,237,233,.62)}
.v5 .chapter .fx-keys .fg2{font-size:9.5px}
.v5 .chapter .fx-side .btn-o{min-height:32px;font-size:9.5px;letter-spacing:.1em;color:rgba(238,237,233,.82)}
.v5 .chapter .fx-side .btn-o .sq{width:6px;height:6px}
.v5 .chapter .fx-head,.v5 .chapter .demo-head{font-size:10.5px;color:rgba(238,237,233,.78)}
/* drawings sheet: compact, quiet, no scroll */
.fx-dwg-h{padding:5px 6px 5px 12px;font-size:9.5px;color:rgba(238,237,233,.7)}
.fx-dwg-h .btn-o.sm{min-height:26px;font-size:9.5px;padding:0 9px}
.fx-dwg-b{grid-template-columns:minmax(0,1fr) 240px}
.fx-sch{overflow:hidden;padding:8px 12px;font-size:10.5px}
.fx-sch-h{font-size:9px;margin:0 0 3px;color:rgba(242,180,138,.8)}
.fx-sch table{margin-bottom:8px}
.fx-sch th{font-size:8.5px;padding:2px 0}
.fx-sch td{padding:2px 0;color:rgba(238,237,233,.72)}
.fx-tot{display:grid;grid-template-columns:1fr 1fr;gap:0 12px}
.fx-tot div{padding:2px 0}
.fx-tot dt{font-size:8.5px}.fx-tot dd{font-size:12px;color:rgba(238,237,233,.85)}
.fx-dwg-f{padding:4px 12px;font-size:8.5px;color:rgba(238,237,233,.42)}
.fx-dwg.out{opacity:0;transition:opacity .22s}

/* V5 · one-window "How we work + About", and the phone layout (≤ 760 px): one menu button, one call to action,
   every section fits the screen, tools show one control row at a time. Loaded after v5.css. */

.m-only{display:none!important}
/* integrations steps: soft fades; on narrow screens the active description grows in (no display jump) and the
   scene is anchored to the top, so a longer description never pushes the diagram */
.v5 .sync-steps li{transition:opacity .8s var(--ease-out)}
@media (max-width:960px){
  .v5 .sync-pin{align-items:start}
  .v5 .sync-grid{padding-top:72px}
  .v5 .sync-steps li{grid-template-rows:auto 0fr;transition:opacity .8s var(--ease-out),grid-template-rows .7s var(--ease-out)}
  .v5 .sync-steps li.on{grid-template-rows:auto 1fr}
  .v5 .sync-steps li>span:last-child{display:block!important;min-height:0;overflow:hidden;opacity:0;transition:opacity .5s var(--ease-out)}
  .v5 .sync-steps li.on>span:last-child{opacity:1;transition-delay:.15s}
}
/* never a sideways scroll: anything that pokes past the edge (a hidden panel mid-animation, a decorative ring) is clipped */
html,body{overflow-x:clip;max-width:100%}
/* touch: a vertical swipe over a 3D viewer scrolls the page; sideways drags still orbit / probe (mouse unaffected) */
.v5 .sa-stage canvas,.v5 .fx-stage{touch-action:pan-y}
/* no one-word last lines: balanced headings, "pretty" paragraphs */
.v5 h1,.v5 h2,.v5 h3,.v5 .big{text-wrap:balance}
.v5 p,.v5 li,.v5 .lede,.v5 figcaption{text-wrap:pretty}
/* hero foot: compact, four columns spread with equal gaps */
.v5 .hero-foot{justify-content:space-between;flex-wrap:nowrap;gap:24px;padding:12px 0 16px;font-size:10.5px;line-height:1.55}
.foot-l a{color:inherit;text-decoration:none}.foot-l a:hover{color:var(--fg)}
/* quiet canvas hints */
.v5 .sa-hint,.v5 .fx-tag{font-size:9px;letter-spacing:.12em;color:rgba(238,237,233,.34);bottom:12px;right:14px;transition:opacity .6s}
.v5 .sa-stage:hover .sa-hint{opacity:.55}
.fx-pick{display:none}
.fx-legend{display:none}

/* ───────── How we work + About, one window ───────── */
/* ───────── how we work (short band) · about (a full window, large portrait framed on the face) ───────── */
.paper>.sec.hw-sec{padding:140px 0 80px}
.hw-sec h2{font-size:clamp(32px,3.6vw,52px);margin-bottom:clamp(14px,2.4vh,28px)}
.paper>.sec.about-sec{min-height:100svh;display:flex;align-items:center;padding:100px 0 48px;box-sizing:border-box;border-top:1px solid var(--line)}
.about-sec>.wrap{width:100%;box-sizing:border-box}
.about-sec .about{grid-template-columns:auto 1fr;gap:clamp(32px,5vw,80px);align-items:center}
.about-ph{position:relative;margin:0;width:clamp(280px,30vw,460px);height:min(72svh,600px);border-radius:10px;overflow:hidden;background:var(--paper-3)}
.about-ph img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:50% 26%;transform:none;filter:grayscale(.15);border-radius:0;aspect-ratio:auto}
.about-sec .about p.big{font-size:clamp(26px,2.7vw,40px);line-height:1.15;max-width:26ch}
.about-k{margin-bottom:18px}
.about-s{margin-top:20px;max-width:52ch;font-size:15px}

/* ───────── space-analytics side panel: never scrolls, nothing moves when values change ───────── */
.v5 .chapter .sa .demo-side{display:flex;flex-direction:column;gap:7px;overflow:hidden}
.v5 .chapter .sa .demo-side>*{flex:none;min-width:0}
.v5 .chapter .sa-desc{height:2.9em;line-height:1.45;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;margin:0}
.v5 .chapter .sa .readout div{min-width:0}
.v5 .chapter .sa .readout b{min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.v5 .chapter .sa .readout .mono{flex:none}
.v5 .chapter .sa-sees{height:1.5em;margin-top:4px;white-space:nowrap!important;overflow:hidden;text-overflow:ellipsis}
.v5 .chapter .sa-ctl{margin-top:auto;display:grid;grid-template-columns:1fr;gap:6px}
.v5 .chapter .sa-ctl .seg{display:grid;grid-template-columns:1fr 1fr;gap:6px;width:100%}
.v5 .chapter .sa-ctl .seg button,.v5 .chapter .sa-share{min-height:34px;height:34px;justify-content:center;font-size:10.5px;letter-spacing:.08em}
.v5 .chapter .sa-share{width:100%;padding:0 10px;gap:9px}
.v5 .chapter .sa-share .sq{width:7px;height:7px}
.v5 .chapter .fx-side{overflow:hidden}

/* ───────── contact: a full window, the buttons clear of the headline ───────── */
.v5 .contact{min-height:100svh;box-sizing:border-box}
.contact>.wrap{display:grid;gap:14px;width:100%;box-sizing:border-box}
.contact .ctas-c{margin-top:clamp(20px,4vh,44px)}

/* ───────── large screens: use the width ───────── */
@media (min-width:1760px){.wrap{max-width:1500px}
  .v5 .sa .demo-body{grid-template-columns:1fr 330px}.fx-body{grid-template-columns:1fr 340px}
  .nav5 .bar,.v5 .ch-head p,.v5 .fx-side,.v5 .sa .demo-side,.v5 .fx-head,.v5 .demo-head,.hero-foot,.v5 .hero .lede,.v5 .hero .ctas,.hero-main .mono,.sync-copy,.wh-panel,.hw-sec .wrap,.about-sec .about>div,.contact .ctas-c{zoom:1.1}}
@media (min-width:2300px){.wrap{max-width:1760px}
  .v5 .sa .demo-body{grid-template-columns:1fr 380px}.fx-body{grid-template-columns:1fr 390px}
  .nav5 .bar,.v5 .ch-head p,.v5 .fx-side,.v5 .sa .demo-side,.v5 .fx-head,.v5 .demo-head,.hero-foot,.v5 .hero .lede,.v5 .hero .ctas,.hero-main .mono,.sync-copy,.wh-panel,.hw-sec .wrap,.about-sec .about>div,.contact .ctas-c{zoom:1.25}}

/* ───────── nav: Menu button (≤ 900) ───────── */
.nav-mb{display:none}
@media (max-width:900px){
  .nav5 .bar{position:relative;min-height:52px;padding:4px 10px 4px 14px}
  .nav5 .nav-cta{display:none}
  .nav-mb{display:inline-flex;min-height:40px;gap:10px;background:rgba(238,237,233,.06)}
  .nav-mb-i{display:grid;gap:4px;width:14px}.nav-mb-i i{display:block;height:1px;background:currentColor;transition:transform .3s var(--ease-out)}
  .nav5.open .nav-mb-i i:first-child{transform:translateY(2.5px) rotate(45deg)}.nav5.open .nav-mb-i i:last-child{transform:translateY(-2.5px) rotate(-45deg)}
  .nav5 nav{position:absolute;left:-1px;right:-1px;top:calc(100% + 6px);background:rgba(14,20,25,.97);border:1px solid rgba(238,237,233,.08);border-radius:2px;
    backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);opacity:0;transform:translateY(-6px);pointer-events:none;transition:opacity .25s,transform .35s var(--ease-out)}
  .nav5.open nav{opacity:1;transform:none;pointer-events:auto}
  .nav5 ul{display:grid!important;gap:0;padding:6px 0}
  .nav5 ul a{min-height:46px;padding:0 18px;width:100%;box-sizing:border-box;border-top:1px solid rgba(238,237,233,.06)}
  .nav5 ul li:first-child a{border-top:0}
  .nav5 .m-only{display:list-item!important}
}

/* ───────── short desktop screens (laptops ≤ 820 px tall): denser side panels, a smaller work card ───────── */
@media (min-width:761px) and (max-height:820px) and (min-aspect-ratio:4/5){
  .v5 .chapter .fx-side{grid-template-columns:1fr 1fr;column-gap:14px;row-gap:6px}
  .v5 .chapter .fx-side>*{grid-column:1/-1}
  .v5 .chapter .fx-side>.fx-sl{grid-column:auto}
  .v5 .chapter .fx-read{display:grid;grid-template-columns:1fr 1fr;column-gap:14px}
  .v5 .chapter .fx-keys,.v5 .chapter .wf-keys{display:none}
  .v5 .chapter .sa-desc{display:none}
  .whs .sec-h{padding-top:84px;margin-bottom:4px}
  .whs .sec-h h2{font-size:clamp(34px,4vw,52px)}
  .whs-on .wh-area{height:min(64vh,560px)}
  .wh-fig{aspect-ratio:auto;height:min(36vh,300px)}
  .wh-ab{-webkit-line-clamp:2!important;height:2.9em!important}
  .wh-panel{gap:10px}
}

/* ───────── 13–15" laptops (two columns, ≤ 820 px tall): a slimmer nav, no hero foot strip, every section
   sized to the window with air under the nav ───────── */
@media (min-width:961px) and (max-height:820px){
  .nav5{top:10px}
  .nav5 .bar{min-height:48px;padding:4px 4px 4px 16px}
  .nav5 .brand,.nav5 ul a{min-height:40px}
  .nav5 .nav-cta{min-height:40px}
  /* hero: the credentials strip goes (About carries it); the headline block and the diagram get the height */
  .v5 .hero{grid-template-rows:minmax(0,1fr);padding:66px 0 clamp(12px,2.4vh,24px);min-height:560px}
  .hero>.wrap:last-child{display:none}
  .v5 .hero h1{font-size:clamp(44px,min(6vw,10vh),92px)}
  .v5 .hero .lede{font-size:clamp(16px,2.5vh,19px)}
  /* tool chapters: smaller heading block, three-line intro, more room for the tool */
  .v5 .chapter{padding:80px 0 14px}
  .v5 .ch-head{margin-bottom:12px;grid-template-columns:48px minmax(0,1.15fr) minmax(0,1fr);gap:18px}
  .v5 .ch-head .ch-num{font-size:clamp(24px,4vh,34px)}
  .v5 .ch-head h2{font-size:clamp(28px,min(3vw,5.4vh),44px)}
  .v5 .ch-head p{font-size:13.5px;line-height:1.42;color:rgba(238,237,233,.78);max-width:54ch}
  .v5 .chapter .wf-it.empty{min-height:58px}
  .v5 .chapter .wf-it canvas{height:40px}
  .v5 .chapter .wf-it{padding:5px 8px 6px}
  /* integrations: clear the nav, compact copy, the diagram scaled to the window */
  .v5 .sync-grid{padding-top:58px;align-items:center}
  .v5 .sync-eyebrow{margin-bottom:10px;font-size:11px}
  .v5 .sync-copy h2{font-size:clamp(34px,min(3.6vw,6.6vh),56px)}
  .v5 .sync-copy>p{font-size:15px;line-height:1.5;max-width:46ch;margin-top:12px}
  .v5 .sync-steps{margin-top:16px}
  .v5 .sync-steps li{padding:8px 0}
  .v5 .sync-steps li b{font-size:16px}
  .v5 .sync-steps li>span:last-child{font-size:13.5px;line-height:1.45}
  .v5 .sync-stage{padding-bottom:76px}
  .v5 .sync-svg{max-height:min(58svh,520px)}
  .v5 .sync-log{font-size:11px;min-height:5.2em}
  /* work, how we work, about, contact */
  .whs .sec-h{padding-top:70px}
  .whs-on .wh-area{height:min(66vh,560px)}
  .paper>.sec.hw-sec{padding:110px 0 64px}
  .paper>.sec.about-sec{padding:80px 0 36px}
  .about-ph{height:min(76svh,600px)}
  .about-sec .about p.big{font-size:clamp(24px,min(2.5vw,4.6vh),40px)}
  .v5 .contact{padding-top:80px;padding-bottom:40px}
  .v5 .contact h2{font-size:clamp(48px,min(7vw,13.5vh),128px)}
}

/* phones, and tablets held upright, get the one-column layout */
@media (max-width:760px), (max-width:1100px) and (max-aspect-ratio:4/5){
  .m-only{display:inline!important}
  .d-only{display:none!important}
  .wrap{padding:0 16px}
  .nav5{top:10px}

  /* hero: the diagram, the headline, one line and the one button, as one group centred in the screen */
  .v5 .hero{height:100svh;min-height:580px;padding-top:62px;grid-template-rows:1fr;box-sizing:border-box}
  .v5 .hero>.wrap.hero-main{display:flex;flex-direction:column;align-items:stretch;justify-content:center;gap:0;padding-top:0;padding-bottom:max(18px,env(safe-area-inset-bottom));height:100%;box-sizing:border-box}
  .hero-main>div:first-child{display:contents}
  .hero-main>div:first-child>.mono{display:none}
  .v5 .hero h1{order:1;font-size:clamp(40px,11.5vw,64px);max-width:none;line-height:.98}
  .v5 .hero .lede{order:2;font-size:clamp(15.5px,4.2vw,19px);margin-top:12px;max-width:32ch}
  .v5 .eco{order:0;flex:none;height:min(40svh,90vw,460px);min-height:0;margin:0 -16px 10px}
  .v5 .hero .ctas{order:4;margin-top:24px}
  .v5 .hero .ctas .btn-o.primary{flex:1;justify-content:center;min-height:48px}
  .hero>.wrap:last-child{display:none}

  /* chapters: number + title on one line, the tool takes the rest */
  .v5 .chapter{height:100svh;min-height:600px;padding:82px 0 max(12px,env(safe-area-inset-bottom));box-sizing:border-box}
  .v5 .chapter .ch-head{display:flex;align-items:baseline;gap:10px;margin:0 0 12px}
  .v5 .chapter .ch-head p{display:none}
  .v5 .chapter .ch-num{font:500 11px var(--f-mono);letter-spacing:.1em;color:var(--ember);flex:none}
  .v5 .chapter .ch-head h2{font-size:clamp(23px,6.6vw,28px);line-height:1.05}
  .v5 .chapter>.wrap>div:last-child{flex:1;min-height:0;display:flex;flex-direction:column}

  /* shared tool frame */
  .v5 .chapter .demo-head,.v5 .chapter .fx-head{display:none}
  .v5 .chapter .sa,.v5 .chapter .fx{flex:1;min-height:0;display:flex;flex-direction:column}
  .v5 .chapter .demo-body,.v5 .chapter .fx-body{flex:1;min-height:0;display:flex!important;flex-direction:column}
  .v5 .chapter .sa-stage,.v5 .chapter .fx .fx-stage{flex:1;min-height:0;height:auto!important;border-right:0;border-bottom:1px solid rgba(238,237,233,.1)}
  .v5 .chapter .sa .demo-side,.v5 .chapter .fx-side{flex:none;overflow:visible;max-height:none;padding:10px 12px;gap:8px;display:grid}
  /* the 3D viewers carry no text on phones */
  .v5 .chapter .lbl-tg,.v5 .chapter .sa-hint,.v5 .chapter .fx-tag{display:none!important}

  /* space analytics: layer chips + three numbers */
  .v5 .chapter .sa-desc,.v5 .chapter .sa .demo-side>div:has(.sk-floors),.v5 .chapter .sa .demo-side>div:has(.sa-probe),.v5 .chapter .sa-ctl,.v5 .chapter .sa .btn-run{display:none}
  .v5 .chapter .sa-layers{display:grid!important;grid-template-columns:repeat(4,minmax(0,1fr));gap:4px}
  .v5 .chapter .sa-layers button{min-width:0;min-height:32px;padding:0 2px;justify-content:center;font-size:9px;letter-spacing:.04em;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .v5 .chapter .sa-layers button::before{display:none}
  .v5 .chapter .sa-glob{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
  .v5 .chapter .sa-glob>div{display:flex;flex-direction:column-reverse;gap:2px;min-width:0;padding:0;border:0;background:none}
  .v5 .chapter .sa-glob span{display:block;max-width:100%;font-size:8.5px;letter-spacing:.06em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .v5 .chapter .sa-glob b{font:400 16px/1.1 var(--f-display);white-space:nowrap}
  .v5 .chapter .sa-glob>div:nth-child(n+4){display:none}
  .v5 .chapter .sa-share{min-height:38px;justify-content:center;font-size:10px}

  /* façade + WFC: chips pick the slider, numbers in one row, buttons in one row */
  .fx-pick{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:4px}
  .fx-pick button{min-width:0;min-height:30px;padding:0 2px;font-size:9px;letter-spacing:.04em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;text-transform:uppercase;color:rgba(238,237,233,.6);background:rgba(238,237,233,.04);border:1px solid rgba(238,237,233,.08);border-radius:2px}
  .fx-pick button[aria-selected=true]{color:#EEEDE9;background:rgba(238,237,233,.13);border-color:rgba(238,237,233,.24)}
  .v5 .chapter .fx-sl{display:none}
  .v5 .chapter .fx-sl.on{display:grid}
  .v5 .chapter .fx-sl input{height:28px}
  .v5 .chapter .fx-read{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;margin:0}
  .v5 .chapter .fx-read div{display:grid;gap:2px;border:0;padding:0;min-width:0}
  .v5 .chapter .fx-read div:nth-child(n+4){display:none}
  .v5 .chapter .fx-read dt{font-size:8.5px;letter-spacing:.06em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.v5 .chapter .fx-read dd{font-size:15px;white-space:nowrap;margin:0}
  .v5 .chapter .fx-keys,.v5 .chapter .wf-keys{display:none}
  .v5 .chapter .fx-side{grid-template-columns:1fr 1fr 1fr}
  .v5 .chapter .fx-side>*{grid-column:1/-1}
  .v5 .chapter .fx-btns{display:contents}
  .v5 .chapter .fx-side>.fx-btns .btn-o,.v5 .chapter .fx-side>.btn-o{grid-column:auto;min-width:0;min-height:36px;height:36px;padding:0 4px;font-size:9px;letter-spacing:.04em;justify-content:center;gap:5px;white-space:nowrap;overflow:hidden}
  .v5 .chapter .fx-side .btn-o .sq{width:6px;height:6px}
  .v5 .chapter .fx-side .btn-o .arr{display:none}
  .v5 .chapter .wf-iters{flex:none;display:flex;overflow-x:auto;scrollbar-width:none}
  .v5 .chapter .wf-it{flex:0 0 22%}
  .v5 .chapter .wf-it canvas{height:34px}

  /* drawings sheet fits the stage */
  /* drawings: the assembly on top, then a numbered parts legend and four totals; no tables */
  .fx-dwg-h{padding:4px 4px 4px 10px;font-size:8.5px}.fx-dwg-h>span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}.fx-dwg-h .fx-back{white-space:nowrap;flex:none}
  .fx-dwg-b{grid-template-columns:1fr!important;grid-template-rows:minmax(0,1fr) auto}
  .fx-sch{border-left:0;border-top:1px solid rgba(238,237,233,.12);padding:8px 10px 6px;overflow:hidden}
  .fx-sch table,.fx-sch .fx-sch-h{display:none}
  .fx-legend{display:grid!important;grid-template-columns:1fr 1fr;gap:3px 12px;list-style:none;margin:0 0 6px;padding:0;font-size:9.5px;letter-spacing:.04em;color:rgba(238,237,233,.72)}
  .fx-legend li{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.fx-legend b{font-weight:500;color:rgba(238,237,233,.45);margin-right:6px}.fx-legend .hl,.fx-legend .hl b{color:#F2B48A}
  .fx-tot{grid-template-columns:1fr 1fr;border-top:1px solid rgba(238,237,233,.08);padding-top:4px}
  .fx-tot dt{font-size:8.5px}.fx-tot dd{font-size:12.5px}
  .fx-dwg-f span:nth-child(n+2){display:none}

  /* integrations */
  .sync-copy h2{font-size:30px}

  /* work: wheel band + card */
  .whs .sec-h{padding-top:0;margin-bottom:0}
  .whs .sec-h h2{font-size:28px}
  .whs-on .whs-pin{align-content:center;padding:66px 0 10px;box-sizing:border-box}
  .wh{gap:6px}
  .whs-on .wh-area{height:min(25svh,230px)}
  .wh-list li{font-size:12px}
  .wh-list li.on .wh-name{font-size:19px!important}
  .wh-panel{gap:8px}
  .wh-panel.hide{transform:translateY(10px)}
  .wh-fig{aspect-ratio:auto;height:min(25svh,52vw)}
  .wh-ico{width:42px;height:42px;left:10px;top:10px}.wh-ico svg{width:30px;height:30px}
  .wh-fig-c{display:none}
  .wh-t{font-size:24px!important}
  .wh-ab{font-size:14px;height:2.9em!important;-webkit-line-clamp:2!important}
  .wh-ctl .wh-go{flex:1;justify-content:center;white-space:nowrap}

  /* how we work, then about (its own screen: portrait on top, the text below) */
  .paper>.sec.hw-sec{padding:96px 0 40px}
  .hw-sec h2{font-size:28px;margin-bottom:8px}
  .hw-sec .steps{grid-template-columns:1fr 1fr}
  .hw-sec .steps div{padding:12px 12px 0 0}
  .hw-sec .steps .mono{font-size:9.5px}
  .hw-sec .steps b{font-size:18px;margin:4px 0 2px}
  .hw-sec .steps p{font-size:13px;line-height:1.4}
  .paper>.sec.about-sec{padding:84px 0 28px}
  .about-sec .about{grid-template-columns:1fr;gap:18px}
  .about-ph{width:min(66vw,280px);height:auto;aspect-ratio:4/5}
  .about-sec .about p.big{font-size:20px;line-height:1.25}
  .about-k{margin-bottom:8px}
  .about-s{font-size:13px;margin-top:10px}

  /* contact */
  .v5 .contact{padding:90px 0 60px}
  .contact>.wrap{container-type:inline-size}
  .v5 .contact h2{font-size:calc(100cqi / var(--ct-em,6.62));max-width:none}
  .contact h2 .ln{display:block;white-space:nowrap}
  .contact .ctas-c{flex-direction:column;align-items:stretch}.contact .ctas-c .btn-o{justify-content:center}
  footer .wrap>span:nth-child(2){display:none}
}

/* ───────── client viewer window (desktop) ───────── */
.sh{position:fixed;inset:0;z-index:110;display:grid;place-items:center;pointer-events:none;opacity:0;transition:opacity .35s}
.sh.on{opacity:1;pointer-events:auto}
.sh-bg{position:absolute;inset:0;background:rgba(8,12,14,.6);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.sh-win{position:relative;display:grid;grid-template-columns:auto minmax(0,320px);gap:clamp(24px,4vw,48px);align-items:center;padding:clamp(20px,3vh,32px) clamp(24px,3vw,40px);
  background:rgba(14,19,23,.92);border:1px solid rgba(238,237,233,.12);border-radius:4px;transform:translateY(10px) scale(.985);transition:transform .45s var(--ease-out)}
.sh.on .sh-win{transform:none}
.sh-phone{padding:9px;border-radius:30px;background:#05080A;border:1px solid rgba(238,237,233,.18);box-shadow:0 30px 80px rgba(0,0,0,.45)}
.sh-screen{position:relative;height:min(640px,calc(100svh - 150px));aspect-ratio:390/844;border-radius:22px;overflow:hidden;background:#0B1014}
.sh-screen iframe{position:absolute;left:0;top:0;width:390px;height:844px;border:0;transform-origin:0 0}
.sh-info{display:grid;gap:14px;align-content:center}
.sh-k{display:inline-flex;align-items:center;gap:10px;font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:#F2B48A;margin:0}
.sh-info h3{font:400 30px/1.05 var(--f-display);letter-spacing:-.03em;margin:0}
.sh-p{font-size:13.5px;line-height:1.5;color:rgba(238,237,233,.7);margin:0}
.sh-qrbox{display:flex;align-items:center;gap:16px;margin-top:6px}
.sh-qr{width:112px;height:112px;padding:8px;background:#EEEDE9;border-radius:3px;flex:none}
.sh-qr svg{width:100%;height:100%;display:block}
.sh-qr svg path,.sh-qr svg rect[fill="#000000"]{fill:#0E1A22}
.sh-qrbox p{font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:rgba(238,237,233,.55);margin:0;line-height:1.6}
.sh-link{display:flex;gap:6px}
.sh-link input{flex:1;min-width:0;height:34px;padding:0 10px;background:rgba(238,237,233,.05);border:1px solid rgba(238,237,233,.1);border-radius:2px;color:rgba(238,237,233,.8);font-size:10.5px}
.sh-open{justify-self:start}
.sh-mbar{display:none}
.sh-x{position:absolute;top:10px;right:10px;min-height:26px;height:26px;padding:0 9px;font-size:9.5px;letter-spacing:.12em;color:rgba(238,237,233,.75)}
@media (max-width:900px){.sh-win{grid-template-columns:auto}.sh-info{display:none}}
/* phone: a full-screen sheet, the viewer inside at its real size, no page scroll */
.sh.mob .sh-win{position:fixed;inset:max(8px,env(safe-area-inset-top)) 8px max(8px,env(safe-area-inset-bottom));display:grid;grid-template-columns:1fr;grid-template-rows:auto minmax(0,1fr);gap:0;padding:0;border-radius:4px;overflow:hidden}
.sh.mob .sh-mbar{display:flex;align-items:center;gap:8px;min-height:46px;padding:0 84px 0 12px;border-bottom:1px solid rgba(238,237,233,.1);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:rgba(238,237,233,.75)}
.sh.mob .sh-mbar>span{display:inline-flex;align-items:center;gap:8px;flex:1;min-width:0;white-space:nowrap}.sh.mob .sh-mbar .sq{width:7px;height:7px}
.sh.mob .sh-send{min-height:30px;height:30px;padding:0 10px;font-size:9.5px}
.sh.mob .sh-x{top:8px;right:8px;height:30px;min-height:30px}
.sh.mob .sh-phone{padding:0;border:0;border-radius:0;box-shadow:none;background:none;min-height:0;height:100%}
.sh.mob .sh-screen{height:100%;width:100%;aspect-ratio:auto;border-radius:0}
.sh.mob .sh-screen iframe{width:100%;height:100%}
.sh.mob .sh-info{display:none}

/* ───────── tablets held upright: the one-column layout, roomier ───────── */
@media (min-width:761px) and (max-width:1100px) and (max-aspect-ratio:4/5){
  .wrap{padding:0 40px}
  .nav5{top:16px}
  .v5 .hero>.wrap.hero-main{padding-top:clamp(40px,6svh,80px)}
  .v5 .hero h1{font-size:clamp(64px,9vw,92px)}
  .v5 .hero .lede{font-size:20px}
  .v5 .eco{margin:16px -40px}
  .v5 .hero .ctas .btn-o.primary{flex:none;align-self:flex-start;padding:0 28px}
  .v5 .chapter{padding-top:104px}
  .v5 .chapter .ch-head{margin-bottom:18px}
  .v5 .chapter .ch-num{font-size:12px}
  .v5 .chapter .ch-head h2{font-size:clamp(34px,4.6vw,46px)}
  .v5 .chapter .sa .demo-side,.v5 .chapter .fx-side{padding:14px 16px;gap:10px}
  .fx-pick{grid-template-columns:repeat(auto-fit,minmax(0,1fr));display:flex}.fx-pick button{flex:1;font-size:10px}
  .v5 .chapter .sa-layers button,.v5 .chapter .fx-side>.fx-btns .btn-o,.v5 .chapter .fx-side>.btn-o{font-size:10.5px;min-height:40px;height:40px}
  .v5 .chapter .fx-read dd,.v5 .chapter .sa-glob b{font-size:20px}
  .v5 .chapter .wf-it canvas{height:54px}
  .whs .sec-h{padding-top:110px}.whs .sec-h h2{font-size:44px}
  .whs-on .wh-area{height:min(34svh,380px)}
  .wh-list li{font-size:14px}.wh-list li.on .wh-name{font-size:26px!important}
  .wh-t{font-size:32px!important}
  .paper>.sec.hw-sec{padding:130px 0 60px}
  .hw-sec .steps{grid-template-columns:repeat(4,1fr)}
  .hw-sec h2{font-size:40px}
  .hw-sec .steps b{font-size:22px}.hw-sec .steps p{font-size:14.5px}
  .about-sec .about{grid-template-columns:1fr;gap:28px}
  .about-ph{height:min(44svh,520px);width:100%}
  .about-sec .about p.big{font-size:30px}
  .about-s{font-size:15px}
  .v5 .contact{padding:120px 0 80px}
  .contact .ctas-c{flex-direction:row}
}

/* ───────── phones turned sideways and other short screens: let sections grow instead of squeezing ───────── */
@media (max-height:540px) and (orientation:landscape){
  .nav5{top:6px}
  .v5 .hero,.v5 .chapter{height:auto;min-height:0}
  .v5 .hero{padding-top:80px}.v5 .hero-main{grid-template-columns:1fr 1fr}.v5 .eco{height:84svh;min-height:300px}
  .hero>.wrap:last-child{display:none}
  .hero-main>div:first-child>.mono{display:none}
  .v5 .chapter .ch-head{grid-template-columns:auto 1fr}.v5 .chapter .ch-head p{display:none}
  .v5 .chapter{padding:78px 0 28px}
  .v5 .chapter .sa-stage,.v5 .chapter .fx .fx-stage{height:86svh!important;min-height:300px}
  .v5 .chapter .demo-body,.v5 .chapter .fx-body{grid-template-columns:minmax(0,1fr) 240px!important}
  .paper>.sec.about-sec,.v5 .contact,.whs.whs-on,.whs-on .whs-pin{min-height:0}
  .whs-on .wh-area{height:70svh}
  .paper>.sec.about-sec{padding:80px 0 40px}
}