/* STEADED — Carved Light design system (shared across all landing pages). */
@font-face{font-family:'Fraunces';font-weight:600;font-display:swap;src:url(/assets/fonts/fraunces.woff2) format('woff2')}
@font-face{font-family:'Inter Tight';font-weight:100 900;font-display:swap;src:url(/assets/fonts/intertight.woff2) format('woff2')}
@font-face{font-family:'JetBrains Mono';font-weight:100 800;font-display:swap;src:url(/assets/fonts/jbmono.woff2) format('woff2')}
@font-face{font-family:'Space Grotesk';font-weight:400 700;font-display:swap;src:url(/assets/fonts/spacegrotesk.woff2) format('woff2')}
/* ============ CARVED LIGHT — shared kit (tokens + components) ============ */
:root{
  /* light register — the quarry */
  --page:#F4F2ED; --card:#FFFFFF; --well:#EAE7DF; --line:#E0DDD3;
  --ink:#131512; --muted:#5C6058; --faint:#979B90;
  /* dark register — the observatory */
  --d-page:#101311; --d-panel:#171B18; --d-raised:#1F2420;
  --d-line:rgba(244,242,237,.10); --d-text:#ECEAE3; --d-muted:#9AA096;
  /* accents — strict semantics: teal = proof+interactive ONLY; gold seam = evidence ONLY; never together */
  --teal:#0F7B74; --teal-d:#35B5AB; --seal:#C89133; --ok:#1F9D6B; --bad:#A8402F;
  --disp:'Fraunces',Georgia,serif; --body:'Inter Tight',system-ui,sans-serif;
  --mono:'JetBrains Mono',ui-monospace,monospace; --app:'Space Grotesk',system-ui,sans-serif;
  --eo:cubic-bezier(.23,1,.32,1);
}
*{box-sizing:border-box;margin:0}
html{scroll-behavior:smooth}
body{background:var(--page);color:var(--ink);font-family:var(--body);font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
h1{font-family:var(--disp);font-weight:600;font-size:clamp(40px,5.4vw,64px);line-height:1.05;letter-spacing:-.01em}
h2{font-family:var(--disp);font-weight:600;font-size:clamp(28px,3.4vw,40px);line-height:1.15;letter-spacing:-.008em}
p{max-width:68ch}
a{color:var(--teal);text-underline-offset:3px}
.dark{background:var(--d-page);color:var(--d-text)}
.dark a{color:var(--teal-d)}
/* --- buttons: the ONLY four --- */
.btn{display:inline-flex;align-items:center;justify-content:center;height:44px;padding:0 22px;border-radius:8px;
  font-family:var(--body);font-weight:600;font-size:15px;text-decoration:none;border:0;cursor:pointer;
  background:var(--ink);color:var(--page);transition:transform 200ms var(--eo),filter 200ms var(--eo)}
.btn:active{transform:scale(.97)}
.dark .btn{background:var(--d-text);color:var(--d-page)}
.btn.verify{background:var(--teal);color:#fff}
.btn.ghost{background:transparent;border:1px solid var(--line);color:var(--ink)}
.dark .btn.ghost{border-color:var(--d-line);color:var(--d-text)}
/* --- seam of light: THE signature divider (only permitted gradient) --- */
.seam{height:1px;border:0;background:linear-gradient(90deg,transparent,#E9BE56 30%,#B8860B 70%,transparent);
  transform-origin:center;animation:seamdraw 600ms var(--eo) both}
@keyframes seamdraw{from{transform:scaleX(0)}to{transform:scaleX(1)}}
/* --- survey-datum kicker --- */
.datum{font-family:var(--mono);font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--seal);display:flex;gap:9px;align-items:center}
.datum::before{content:"\25BD";font-size:10px;color:var(--seal)}
.dark .datum{color:#E9BE56}
/* --- mono evidence text --- */
.ev{font-family:var(--mono);font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.dark .ev{color:var(--d-muted)}
/* --- cards: stone sits, it doesn't float --- */
.card{background:var(--card);border:1px solid var(--line);border-radius:12px}
.dark .card{background:var(--d-panel);border-color:var(--d-line);box-shadow:0 24px 60px rgba(0,0,0,.35)}
/* --- specimen plinth (screenshots live ONLY here) --- */
.plinth{background:var(--d-panel);border:1px solid var(--d-line);border-radius:12px;overflow:hidden;box-shadow:0 24px 60px rgba(0,0,0,.28)}
.plinth .pbar{display:flex;justify-content:space-between;padding:9px 14px;font-family:var(--mono);font-size:11px;letter-spacing:.06em;color:var(--d-muted);border-bottom:1px solid var(--d-line)}
.plinth img,.plinth .pbody{width:100%;display:block}
.plinth .pcap{padding:8px 14px;font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;color:var(--d-muted);border-top:2px solid var(--seal)}
/* --- sealed footer (universal) --- */
.sealedfoot{font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--faint)}
.dark .sealedfoot{color:var(--d-muted)}
/* --- ledger pill --- */
.ledgerpill{position:fixed;right:18px;bottom:18px;background:var(--d-panel);color:var(--d-text);border:1px solid var(--d-line);
  border-bottom:2px solid var(--seal);border-radius:99px;padding:9px 16px;font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;z-index:90}
.ledgerpill i{color:var(--teal-d);font-style:normal}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}}

/* ============ CARVED LIGHT — shared page chrome (slice 1: nav / footer / gate / a11y / request dialog / SealedVisit ledger) ============ */

/* ---- accessibility utilities ---- */
.skip{position:absolute;left:-9999px;top:0;z-index:999;background:var(--teal);color:#fff;padding:10px 16px;border-radius:0 0 8px 0;text-decoration:none;font-family:var(--body);font-weight:600}
.skip:focus{left:0}
:focus-visible{outline:2.5px solid var(--teal);outline-offset:2px}

/* ---- reveal-on-scroll (CSS holds the state; assets/js/reveal.js only toggles .in) ---- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity 700ms var(--eo),transform 700ms var(--eo)}
.reveal.in{opacity:1;transform:translateY(0)}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none}}
html.no-js .reveal{opacity:1;transform:none}

/* ---- section furniture: hash rules + inscribed numerals + datum ticks (reused on every CL page) ---- */
.hashrule-wrap{padding:40px 0}
.hashrule{display:flex;align-items:center;gap:14px;color:var(--faint);font-family:var(--mono);font-size:10px;letter-spacing:.06em;margin:0 auto;max-width:1120px;padding:0 24px}
.hashrule::before,.hashrule::after{content:"";flex:1;height:1px;background:var(--line)}
.dark .hashrule{color:var(--d-muted)}
.dark .hashrule::before,.dark .hashrule::after{background:var(--d-line)}
.sec-numeral{position:relative}
.sec-numeral::before{content:attr(data-n);position:absolute;top:-.35em;left:50%;transform:translateX(-50%);
  font-family:var(--disp);font-weight:600;font-size:150px;line-height:1;color:var(--ink);opacity:.04;pointer-events:none;z-index:0;white-space:nowrap}
.dark .sec-numeral::before{color:var(--d-text);opacity:.05}
.sec-numeral>*{position:relative;z-index:1}
@media(max-width:820px){.sec-numeral::before{font-size:96px}}
.datum-tick{position:relative}
.datum-tick::before{content:"";position:absolute;left:-18px;top:.2em;width:9px;height:1px;background:var(--seal)}
@media(max-width:900px){.datum-tick::before{display:none}}

/* ---- stone-grain texture: the quarried dark-register surface (gate + observatory-style bands) ---- */
.stonegrain{position:relative;background-image:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.05'/%3E%3C/svg%3E"),
    repeating-linear-gradient(180deg,rgba(244,242,237,.03) 0px,rgba(244,242,237,.03) 1px,transparent 1px,transparent 8px)}

/* ---- nav (every page) ---- */
.nav{background:var(--well);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:80}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:76px;gap:18px}
.nav-lockup{display:inline-flex;align-items:center;gap:11px;font-family:var(--app);font-weight:600;letter-spacing:.14em;font-size:15px;color:var(--ink);text-decoration:none}
.nav-lockup .keystone{color:var(--ink)}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a,.nav-links button{color:var(--muted);text-decoration:none;font-size:14.5px;font-weight:500;font-family:var(--body);background:none;border:0;padding:0;cursor:pointer;transition:color 200ms var(--eo)}
.nav-links a:hover,.nav-links button:hover{color:var(--ink)}
.nav-cta{display:flex;align-items:center;gap:20px}
@media(max-width:760px){
  .nav .wrap{height:64px;gap:10px}
  .nav-lockup{gap:0}
  .nav-lockup .lockup-word{display:none}
  .nav-links{gap:14px}
  .nav-links .navhide{display:none}
  .nav-cta .btn{height:36px;padding:0 14px;font-size:13px;white-space:nowrap}
}

/* ---- footer (every page) ---- */
.foot{background:var(--well);border-top:1px solid var(--line);padding:64px 0 40px}
.foot-cols{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:32px;margin-bottom:44px}
.foot-col-brand .nav-lockup{margin-bottom:14px}
.foot-col-brand p{color:var(--muted);font-size:13.5px;max-width:32ch}
.foot-col h4{font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--faint);margin-bottom:16px;font-weight:600}
.foot-col-links{display:flex;flex-direction:column;gap:11px}
.foot-col-links a{color:var(--muted);text-decoration:none;font-family:var(--mono);font-size:13px;letter-spacing:.01em;transition:color 200ms var(--eo)}
.foot-col-links a:hover{color:var(--ink)}
@media(max-width:820px){.foot-cols{grid-template-columns:1fr 1fr;row-gap:36px}.foot-col-brand{grid-column:1/-1}}
@media(max-width:560px){.foot-cols{grid-template-columns:1fr}}
.foot-bottom{padding-top:24px;border-top:1px solid var(--line);padding-bottom:12px;display:flex;flex-direction:column;gap:8px}
.foot-bottom .sealedfoot{display:block;max-width:900px}
.foot-patents{font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--faint);opacity:.8}

/* ---- sg-gate: the entrance, full-bleed basalt (every gated page) ---- */
body.sg-gated{overflow:hidden}
#sg-gate{position:fixed;inset:0;z-index:200;display:grid;place-items:center;background:var(--d-page);padding:24px;transition:opacity .3s var(--eo)}
.sgc{position:relative;width:min(440px,100%);text-align:left;color:var(--d-text)}
.sgc .keystone{color:var(--d-text);margin-bottom:22px;display:block}
.sgc h1{font-family:var(--app);font-weight:600;font-size:clamp(26px,4vw,32px);letter-spacing:-.01em;line-height:1.15;margin-bottom:12px}
.sgc .sgs{color:var(--d-muted);font-size:15px;line-height:1.6;margin-bottom:28px;max-width:44ch}
.sgc input[type=email]{width:100%;font:inherit;font-size:15.5px;padding:13px 15px;border-radius:8px;border:1px solid var(--d-line);background:var(--d-panel);color:var(--d-text);outline:none;transition:border-color 200ms var(--eo)}
.sgc input[type=email]:focus{border-color:var(--teal-d)}
.sgagree{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--d-muted);margin:16px 0 22px;line-height:1.5}
.sgagree input{margin-top:3px;accent-color:var(--teal-d)}
.sgagree a{color:var(--teal-d)}
.sgc .btn{width:100%}
.sgerr{min-height:18px;font-size:12.5px;color:var(--bad);margin-top:10px}
.sgfoot{margin-top:24px;text-align:center;font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--d-muted)}

/* ---- accessibility panel — data-tog / data-zoom contract (assets/js/a11y.js), every page ---- */
#a11y-panel{position:fixed;right:16px;top:88px;z-index:220;width:288px;max-width:calc(100vw - 32px);
  background:var(--card);color:var(--ink);border:1px solid var(--line);border-radius:12px;padding:18px;font:14px/1.45 var(--body)}
#a11y-panel[hidden]{display:none}
.a11y-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
#a11y-title{font-family:var(--disp);font-size:17px;font-weight:600;margin:0}
#a11y-close{background:none;border:0;font-size:19px;line-height:1;cursor:pointer;color:var(--muted);padding:2px 6px;border-radius:6px}
#a11y-close:hover{background:var(--well)}
.a11y-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:11px;padding-top:11px;border-top:1px solid var(--line)}
.a11y-row>span{font-weight:500;font-size:14px}
.a11y-seg{display:inline-flex;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.a11y-seg button{background:var(--card);border:0;border-left:1px solid var(--line);padding:7px 12px;cursor:pointer;font:inherit;font-weight:600;color:var(--ink)}
.a11y-seg button:first-child{border-left:0}
.a11y-seg button:hover{background:var(--well)}
.a11y-toggle{display:block;width:100%;text-align:left;background:var(--well);border:1px solid var(--line);border-radius:8px;padding:10px 12px;margin-bottom:8px;cursor:pointer;font:inherit;font-weight:500;color:var(--ink)}
.a11y-toggle:hover{border-color:var(--faint)}
.a11y-toggle[aria-pressed="true"]{background:var(--ink);color:var(--page);border-color:var(--ink)}
.a11y-toggle[aria-pressed="true"]::after{content:"\2713";float:right;color:#E9BE56}
#a11y-reset{display:block;width:100%;background:none;border:0;color:var(--teal);text-decoration:underline;cursor:pointer;font:inherit;padding:6px 0;margin-top:2px;text-align:left}
.a11y-statement{font-size:12px;color:var(--muted);margin:12px 0 0;line-height:1.55;border-top:1px solid var(--line);padding-top:11px}
.a11y-statement a{color:var(--teal)}
@media(max-width:560px){#a11y-panel{right:12px;left:12px;width:auto;top:auto;bottom:88px}}

/* ---- a11y apply layer: html classes toggled by assets/js/a11y.js (design-agnostic contract) ---- */
html.a11y-zoom body{zoom:var(--a11y-zoom,1)}
html.a11y-contrast,html.a11y-contrast body{background:#fff!important;background-image:none!important;color:#111!important}
html.a11y-contrast *{color:#111!important;border-color:#222!important;box-shadow:none!important;text-shadow:none!important}
html.a11y-contrast a{color:#0b46c2!important}
html.a11y-contrast .btn,html.a11y-contrast .sv-obs-verdict.ok,html.a11y-contrast .sv-obs-verdict.bad,html.a11y-contrast #sv-verdict.ok,html.a11y-contrast #sv-verdict.bad{background:#000!important;color:#fff!important;border-color:#000!important}
html.a11y-contrast .dark,html.a11y-contrast .plinth,html.a11y-contrast footer,html.a11y-contrast .card,html.a11y-contrast #sg-gate{background:#fff!important}
html.a11y-nomotion *,html.a11y-nomotion *::before,html.a11y-nomotion *::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
html.a11y-links a{text-decoration:underline!important;outline:1px solid currentColor;outline-offset:2px}
html.a11y-readable p,html.a11y-readable li,html.a11y-readable a,html.a11y-readable span,html.a11y-readable h1,html.a11y-readable h2,html.a11y-readable h3{line-height:1.85!important;letter-spacing:.02em!important;word-spacing:.06em!important}

/* ---- request-demo / register-interest dialog — #rq contract (assets/js/request-dialog.js), every page ---- */
.rqov{position:fixed;inset:0;z-index:210;display:none;align-items:center;justify-content:center;background:rgba(16,19,17,.6);backdrop-filter:blur(2px);padding:20px}
.rqov.open{display:flex}
.rqc{position:relative;width:min(440px,94vw);background:var(--card);border:1px solid var(--line);border-radius:12px;padding:30px 28px;text-align:left}
.rqc h3{font-family:var(--disp);font-weight:600;font-size:23px;margin-bottom:6px;color:var(--ink)}
.rq-s{font-size:14px;color:var(--muted);margin-bottom:18px;line-height:1.5}
.rqc input[type=email],.rqc textarea{width:100%;font:inherit;font-size:15px;padding:11px 13px;border-radius:8px;border:1px solid var(--line);background:var(--well);color:var(--ink);margin-bottom:12px;resize:vertical;outline:none;transition:border-color 200ms var(--eo)}
.rqc input[type=email]:focus,.rqc textarea:focus{border-color:var(--teal)}
.rq-btn{width:100%}
.rq-err{color:var(--bad);font-size:13px;margin-top:9px;min-height:1em}
.rq-done{font-size:15px;color:var(--ink);line-height:1.55}
.rq-done .rq-alt{display:block;margin-top:8px;font-size:13px;color:var(--muted)}
.rq-x{position:absolute;top:14px;right:14px;width:32px;height:32px;border:0;border-radius:8px;background:transparent;color:var(--muted);font-size:15px;cursor:pointer}
.rq-x:hover{background:var(--well)}
html.a11y-contrast .rq-btn{background:#000!important;color:#fff!important;border-color:#000!important}

/* ---- SealedVisit floating ledger — "your visit" chip, persists cross-page (every page) ---- */
#sv-ledger-wrap{position:fixed;right:18px;bottom:18px;width:340px;z-index:190;font-family:var(--mono)}
#sv-ledger-wrap.collapsed #sv-ledger-card{display:none}
#sv-ledger-wrap:not(.collapsed) .ledgerpill{display:none}
#sv-ledger-card{display:flex;flex-direction:column;overflow:hidden;background:var(--card);border:1px solid var(--line);border-radius:12px}
#sv-ledger-head{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:12px 14px;border-bottom:1px solid var(--line);background:var(--well);border-radius:11px 11px 0 0}
#sv-ledger-head .htext{font-size:10px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);line-height:1.5}
#sv-ledger-head .htext b{color:var(--ink);font-family:var(--mono)}
#sv-ledger-collapse{border:0;background:transparent;cursor:pointer;color:var(--faint);font-size:14px;line-height:1;padding:4px 6px}
#sv-ledger-body{height:220px;min-height:220px;max-height:220px;overflow-y:auto;padding:6px 0;background:var(--card)}
#sv-ledger-body .row{padding:5px 14px;font-size:10.5px;line-height:1.5;color:var(--ink);border-bottom:1px solid var(--line);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
#sv-ledger-body .row .tt{color:var(--seal);font-weight:700;margin:0 6px}
#sv-ledger-body .empty{padding:16px 14px;color:var(--faint);font-size:11px;white-space:normal}
#sv-ledger-foot{padding:10px 14px;border-top:1px solid var(--line)}
#sv-ledger-foot .btn{width:100%;height:36px;font-size:12.5px}
#sv-verdict{margin-top:8px;font-size:10.5px;text-align:center;letter-spacing:.06em;text-transform:uppercase;min-height:14px}
#sv-verdict.ok{color:var(--ok)}
#sv-verdict.bad{color:var(--bad)}
.ledgerpill{cursor:pointer;border:none}
@media(max-width:560px){#sv-ledger-wrap{width:calc(100vw - 24px);right:12px;bottom:12px}}