/* ============================================================
   FERROCK AI — design system
   Concept: "the drawing set and the ledger" — an engineer's
   drawing set bound into a private investment memorandum.
   Grounds: bone drawing-paper (light) / cold iron (dark).
   Accent: oxide — red-lead primer on structural steel.
   Type: Archivo (expanded display) · Instrument Sans (body)
         · IBM Plex Mono (annotations) · Source Serif 4 (letter)
   ============================================================ */
:root{
  --iron-950:#0B0E11;
  --iron-900:#10141A;
  --iron-850:#151A21;
  --iron-800:#1B212A;
  --line-dark:#28303B;
  --line-dark-soft:#1F2630;
  --bone:#ECE9DF;
  --bone-2:#E4E0D3;
  --bone-3:#DBD6C6;
  --line-light:#CBC5B2;
  --graphite:#1F2328;
  --ink-soft:#50544F;
  --oxide:#AE3A1B;
  --oxide-bright:#E2551F;
  --oxide-dim:#7A2B15;
  --steel:#97A2AE;
  --steel-dim:#5C6772;
  --flint:#716C5C;
  --white:#F7F5EE;

  --ff-disp:"Archivo","Helvetica Neue",Arial,sans-serif;
  --ff-body:"Instrument Sans","Helvetica Neue",Arial,sans-serif;
  --ff-mono:"IBM Plex Mono","SFMono-Regular",Menlo,monospace;
  --ff-serif:"Source Serif 4",Georgia,serif;

  --fs-hero:clamp(2.5rem,5.9vw,5.5rem);
  --fs-h2:clamp(1.85rem,3.4vw,3.05rem);
  --fs-h3:clamp(1.2rem,1.8vw,1.55rem);
  --fs-lede:clamp(1.02rem,1.3vw,1.22rem);
  --fs-mono-xs:.72rem;
  --fs-mono-s:.8rem;

  --shell:1360px;
  --gut:clamp(20px,4vw,56px);
  --sp-sec:clamp(76px,9vw,148px);
  --sp-sec-s:clamp(52px,6.5vw,88px);

  --ease:cubic-bezier(.16,1,.3,1);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--ff-body);
  font-size:16.5px;line-height:1.65;
  color:var(--graphite);
  background:var(--iron-950);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button{font:inherit;background:none;border:0;cursor:pointer;color:inherit}
::selection{background:var(--oxide);color:var(--white)}
:focus-visible{outline:2px solid var(--oxide-bright);outline-offset:3px}

/* ---------- type voices ---------- */
.disp{font-family:var(--ff-disp);font-stretch:118%;font-weight:645;letter-spacing:-.018em;line-height:1.02;text-wrap:balance}
.disp--caps{text-transform:uppercase;letter-spacing:.005em;line-height:.98}
.mono{font-family:var(--ff-mono);font-size:var(--fs-mono-xs);font-weight:500;letter-spacing:.14em;text-transform:uppercase}
.mono-s{font-family:var(--ff-mono);font-size:var(--fs-mono-s);font-weight:400;letter-spacing:.02em;text-transform:none}
.num{font-family:var(--ff-disp);font-stretch:114%;font-weight:620;font-variant-numeric:tabular-nums;letter-spacing:-.02em}

/* ---------- shell / sections ---------- */
.shell{max-width:var(--shell);margin:0 auto;padding-inline:var(--gut)}
.sec{padding-block:var(--sp-sec)}
.sec--tight{padding-block:var(--sp-sec-s)}
.sec--bone{background:var(--bone);color:var(--graphite)}
.sec--bone2{background:var(--bone-2);color:var(--graphite)}
.sec--iron{background:var(--iron-900);color:var(--white)}
.sec--iron-deep{background:var(--iron-950);color:var(--white)}
.sec--flush-b{padding-bottom:0}

/* ---------- sheet header device ----------
   every major section opens like a sheet in a drawing set:
   hairline rule, sheet index left, live datum right          */
.sheethead{display:flex;justify-content:space-between;align-items:baseline;gap:16px;border-top:1px solid var(--line-light);padding-top:14px;margin-bottom:clamp(36px,5vw,64px)}
.sec--iron .sheethead,.sec--iron-deep .sheethead{border-top-color:var(--line-dark)}
.sheethead .mono{color:var(--flint)}
.sec--iron .sheethead .mono,.sec--iron-deep .sheethead .mono{color:var(--steel)}
.sheethead .mono b{color:var(--oxide);font-weight:600}
.sec--iron .sheethead .mono b,.sec--iron-deep .sheethead .mono b{color:var(--oxide-bright)}
.sheethead-r{text-align:right}
@media(max-width:640px){.sheethead-r{display:none}}

/* ---------- headings / copy ---------- */
.h-sec{font-size:var(--fs-h2);max-width:19ch}
.h-sub{font-size:var(--fs-h3);font-weight:600;font-family:var(--ff-disp);font-stretch:112%;letter-spacing:-.008em}
.lede{font-size:var(--fs-lede);line-height:1.6;max-width:58ch;color:var(--ink-soft)}
.sec--iron .lede,.sec--iron-deep .lede{color:var(--steel)}
.body-copy{max-width:62ch;color:var(--ink-soft)}
.sec--iron .body-copy,.sec--iron-deep .body-copy{color:var(--steel)}
.eyebrow{font-family:var(--ff-mono);font-size:var(--fs-mono-xs);font-weight:600;letter-spacing:.22em;text-transform:uppercase;color:var(--oxide);display:flex;align-items:center;gap:12px}
.sec--iron .eyebrow,.sec--iron-deep .eyebrow{color:var(--oxide-bright)}
.eyebrow::before{content:"";width:26px;height:1px;background:currentColor}

/* dimension line — annotates a heading with its real measurement */
.dimline{display:flex;align-items:center;gap:10px;margin-top:18px;color:var(--flint)}
.sec--iron .dimline,.sec--iron-deep .dimline{color:var(--steel-dim)}
.dimline .dl-bar{position:relative;flex:0 0 clamp(90px,12vw,170px);height:1px;background:currentColor}
.dimline .dl-bar::before,.dimline .dl-bar::after{content:"";position:absolute;top:-4px;width:1px;height:9px;background:currentColor}
.dimline .dl-bar::before{left:0}
.dimline .dl-bar::after{right:0}
.dimline .mono{letter-spacing:.1em;color:inherit}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:12px;font-family:var(--ff-mono);font-size:var(--fs-mono-xs);font-weight:600;letter-spacing:.18em;text-transform:uppercase;padding:15px 26px;border:1px solid currentColor;border-radius:2px;transition:background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease)}
.btn .ar{transition:transform .25s var(--ease)}
.btn:hover .ar{transform:translateX(4px)}
.btn--solid{background:var(--oxide);border-color:var(--oxide);color:var(--white)}
.btn--solid:hover{background:var(--oxide-bright);border-color:var(--oxide-bright)}
.btn--ink{color:var(--graphite)}
.btn--ink:hover{background:var(--graphite);color:var(--bone)}
.btn--bone{color:var(--white)}
.btn--bone:hover{background:var(--white);color:var(--iron-900)}
.btn-row{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- chips (status encodes state by form) ---------- */
.chip{display:inline-flex;align-items:center;gap:8px;font-family:var(--ff-mono);font-size:.66rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;padding:5px 10px;border-radius:2px;white-space:nowrap}
.chip::before{content:"";width:7px;height:7px;border-radius:1px}
.chip--live{background:var(--oxide);color:var(--white)}
.chip--live::before{background:var(--white)}
.chip--build{border:1px solid var(--oxide);color:var(--oxide)}
.chip--build::before{background:var(--oxide)}
.chip--land{border:1px solid var(--steel-dim);color:var(--steel)}
.chip--land::before{background:var(--steel)}
.chip--plan{border:1px dashed var(--steel-dim);color:var(--steel-dim)}
.chip--plan::before{background:transparent;border:1px solid var(--steel-dim)}
.on-light .chip--land,.on-light .chip--plan{color:var(--flint);border-color:var(--flint)}
.on-light .chip--land::before{background:var(--flint)}
.on-light .chip--plan::before{border-color:var(--flint)}

/* ---------- topbar + nav ---------- */
.topbar{background:var(--iron-950);border-bottom:1px solid var(--line-dark-soft);color:var(--steel-dim)}
.topbar-in{display:flex;justify-content:space-between;gap:16px;padding-block:8px}
.topbar .mono{letter-spacing:.18em;font-size:.62rem}
.topbar a:hover{color:var(--white)}
@media(max-width:860px){.topbar-in .mono:first-child{display:none}.topbar-in{justify-content:flex-end}}

.nav{position:sticky;top:0;z-index:60;background:color-mix(in srgb,var(--iron-950) 88%,transparent);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line-dark-soft)}
.nav-in{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:13px;color:var(--white)}
.brand svg{display:block}
.brand-word{font-family:var(--ff-disp);font-stretch:122%;font-weight:700;font-size:1.14rem;letter-spacing:.06em;text-transform:uppercase}
.brand-word em{font-style:normal;color:var(--oxide-bright);font-weight:500}
.nav-links{display:flex;gap:clamp(16px,2.4vw,34px)}
.nav-links a{font-family:var(--ff-mono);font-size:.68rem;font-weight:500;letter-spacing:.18em;text-transform:uppercase;color:var(--steel);padding:6px 0;border-bottom:1px solid transparent;transition:color .2s,border-color .2s}
.nav-links a:hover{color:var(--white)}
.nav-links a.is-active{color:var(--white);border-bottom-color:var(--oxide-bright)}
.nav-cta{flex-shrink:0}
.nav .btn{padding:11px 18px}
.burger{display:none;flex-direction:column;gap:5px;padding:10px}
.burger span{display:block;width:22px;height:2px;background:var(--white);transition:transform .3s var(--ease),opacity .2s}
@media(max-width:1080px){
  .nav-links,.nav-cta{display:none}
  .burger{display:flex}
}
.mobile-menu{position:fixed;inset:0;z-index:55;background:var(--iron-950);display:none;flex-direction:column;justify-content:center;padding:var(--gut)}
.mobile-menu.is-open{display:flex}
.mobile-menu a{font-family:var(--ff-disp);font-stretch:118%;font-weight:640;font-size:clamp(1.7rem,7vw,2.6rem);text-transform:uppercase;color:var(--white);padding:10px 0;border-bottom:1px solid var(--line-dark-soft);display:flex;justify-content:space-between;align-items:center}
.mobile-menu a .mono{color:var(--steel-dim)}
.mobile-menu .btn{margin-top:28px;justify-content:center}
body.menu-open{overflow:hidden}
body.menu-open .burger span:nth-child(1){transform:translateY(7px) rotate(45deg)}
body.menu-open .burger span:nth-child(2){opacity:0}
body.menu-open .burger span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- hero (annotated photograph) ---------- */
.hero{position:relative;min-height:min(92vh,880px);display:flex;flex-direction:column;justify-content:flex-end;overflow:hidden;background:var(--iron-950);color:var(--white)}
.hero-media{position:absolute;inset:0}
.hero-media img{width:100%;height:100%;object-fit:cover;filter:saturate(.82) contrast(1.06) brightness(.92)}
.hero-scrim{position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,14,17,.62) 0%,rgba(11,14,17,.18) 38%,rgba(11,14,17,.52) 68%,rgba(11,14,17,.94) 100%)}
.hero-scrim::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(11,14,17,.55),transparent 55%)}
.hero-anno{position:absolute;inset:0;pointer-events:none}
.hero-anno text{font-family:var(--ff-mono);font-size:11px;letter-spacing:.14em;fill:var(--white)}
.hero-anno .an-line{stroke:var(--white);stroke-width:1;opacity:.85}
.hero-anno .an-tick{stroke:var(--oxide-bright);stroke-width:1.5}
.hero-anno .an-box{fill:rgba(11,14,17,.55);stroke:rgba(247,245,238,.35);stroke-width:.5}
@media(max-width:900px){.hero-anno{display:none}}
.hero-corner{position:absolute;width:18px;height:18px;pointer-events:none;opacity:.65}
.hero-corner::before,.hero-corner::after{content:"";position:absolute;background:var(--white)}
.hero-corner::before{width:100%;height:1px;top:50%}
.hero-corner::after{height:100%;width:1px;left:50%}
.hero-content{position:relative;z-index:2;padding-top:140px}
.hero-eyebrow{display:flex;align-items:center;gap:14px;color:var(--white);font-family:var(--ff-mono);font-size:var(--fs-mono-xs);font-weight:500;letter-spacing:.24em;text-transform:uppercase}
.hero-eyebrow::before{content:"";width:34px;height:1px;background:var(--oxide-bright)}
.hero h1{font-size:var(--fs-hero);max-width:15ch;margin-top:22px}
.hero-lede{margin-top:24px;max-width:52ch;font-size:var(--fs-lede);color:#C9CDCA;line-height:1.58}
.hero .btn-row{margin-top:36px;margin-bottom:clamp(44px,6vw,72px)}

/* hero stat ledger */
.hero-stats{position:relative;z-index:2;border-top:1px solid rgba(247,245,238,.22);background:linear-gradient(180deg,rgba(11,14,17,.35),rgba(11,14,17,.75))}
.hero-stats-in{display:grid;grid-template-columns:repeat(4,1fr)}
.hstat{padding:22px 26px 26px;border-right:1px solid rgba(247,245,238,.14)}
.hstat:first-child{padding-left:0}
.hstat:last-child{border-right:0}
.hstat .num{font-size:clamp(1.7rem,2.8vw,2.6rem);color:var(--white)}
.hstat .num i{font-style:normal;font-family:var(--ff-mono);font-weight:500;font-size:.5em;letter-spacing:.06em;color:var(--oxide-bright);margin-left:4px}
.hstat .mono{display:block;margin-top:8px;color:var(--steel)}
@media(max-width:900px){
  .hero-stats-in{grid-template-columns:1fr 1fr}
  .hstat{padding:18px 20px}
  .hstat:nth-child(odd){padding-left:0;border-left:0}
  .hstat:nth-child(2n){border-right:0}
  .hstat:nth-child(-n+2){border-bottom:1px solid rgba(247,245,238,.14)}
}

/* ---------- backer marquee ---------- */
.backers{background:var(--iron-950);border-bottom:1px solid var(--line-dark-soft);padding-block:26px;overflow:hidden}
.backers .mono{color:var(--steel-dim);text-align:center;display:block;margin-bottom:20px}
.marquee{display:flex;overflow:hidden;-webkit-mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent)}
.marquee-track{display:flex;align-items:center;gap:clamp(48px,7vw,110px);padding-right:clamp(48px,7vw,110px);flex-shrink:0;animation:marquee 36s linear infinite}
@keyframes marquee{to{transform:translateX(-100%)}}
.bk{font-family:var(--ff-disp);font-stretch:116%;font-weight:600;font-size:1.05rem;letter-spacing:.3em;text-transform:uppercase;color:var(--steel);white-space:nowrap}
.bk small{display:block;font-family:var(--ff-mono);font-weight:400;font-size:.56rem;letter-spacing:.26em;color:var(--steel-dim);margin-top:3px}


/* ---------- pillar cards (platform = a real sequence: land, build, capital, tenants) ---------- */
.pillars{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line-light);border:1px solid var(--line-light)}
.pillar{background:var(--bone);padding:30px 26px 34px;display:flex;flex-direction:column;gap:16px;min-height:320px;position:relative;transition:background .3s var(--ease)}
.pillar:hover{background:var(--bone-2)}
.pillar .mono{color:var(--flint)}
.pillar h3{font-size:1.3rem;font-family:var(--ff-disp);font-stretch:114%;font-weight:620;letter-spacing:-.008em;max-width:12ch}
.pillar p{font-size:.92rem;color:var(--ink-soft);flex:1}
.pillar .p-link{font-family:var(--ff-mono);font-size:var(--fs-mono-xs);font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--oxide);display:inline-flex;gap:10px;align-items:center}
.pillar .p-link .ar{transition:transform .25s var(--ease)}
.pillar:hover .p-link .ar{transform:translateX(4px)}
.pillar .p-datum{font-family:var(--ff-mono);font-size:.68rem;letter-spacing:.08em;color:var(--flint);border-top:1px solid var(--line-light);padding-top:12px}
@media(max-width:1080px){.pillars{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.pillars{grid-template-columns:1fr}.pillar{min-height:0}}

/* ---------- vertical stack diagram (own every layer) ---------- */
.stack{display:flex;flex-direction:column;gap:1px;background:var(--line-dark);border:1px solid var(--line-dark)}
.stack-row{display:grid;grid-template-columns:minmax(150px,220px) 1fr minmax(120px,200px);gap:24px;align-items:center;background:var(--iron-900);padding:26px 28px;transition:background .3s var(--ease)}
.stack-row:hover{background:var(--iron-850)}
.stack-row .mono{color:var(--oxide-bright)}
.stack-row h3{font-family:var(--ff-disp);font-stretch:114%;font-weight:620;font-size:1.25rem;color:var(--white)}
.stack-row p{font-size:.9rem;color:var(--steel);max-width:52ch}
.stack-row .s-datum{font-family:var(--ff-mono);font-size:.7rem;letter-spacing:.08em;color:var(--steel-dim);text-align:right}
@media(max-width:860px){.stack-row{grid-template-columns:1fr;gap:10px}.stack-row .s-datum{text-align:left}}

/* ---------- schedule comparison (the eight-month standard) ---------- */
.sched{display:flex;flex-direction:column;gap:34px}
.sched-row .sched-cap{display:flex;justify-content:space-between;align-items:baseline;gap:14px;margin-bottom:12px}
.sched-row .sched-cap .mono{color:var(--steel)}
.sched-row .sched-cap .num{font-size:1.5rem;color:var(--white)}
.sched-track{position:relative;height:44px;background:var(--iron-850);border:1px solid var(--line-dark)}
.sched-fill{position:absolute;inset:0;width:0%;display:flex;align-items:center;overflow:hidden;transition:width 1.6s var(--ease)}
.sched-fill--ferrock{background:var(--oxide)}
.sched-fill--industry{background:var(--iron-800);border-right:1px solid var(--line-dark)}
.sched-seg{flex-shrink:0;height:100%;display:flex;align-items:center;padding-inline:14px;border-right:1px solid rgba(11,14,17,.35);font-family:var(--ff-mono);font-size:.62rem;letter-spacing:.12em;text-transform:uppercase;color:var(--white);white-space:nowrap}
.sched-fill--industry .sched-seg{color:var(--steel);border-right-color:var(--line-dark)}
.sched-scale{display:flex;justify-content:space-between;margin-top:10px;font-family:var(--ff-mono);font-size:.62rem;letter-spacing:.1em;color:var(--steel-dim)}
@media(max-width:700px){.sched-seg{padding-inline:8px;font-size:.55rem}}

/* ---------- map ---------- */
.map-grid{display:grid;grid-template-columns:1.45fr 1fr;gap:clamp(28px,4vw,64px);align-items:start}
.map-frame{position:relative;border:1px solid var(--line-dark);background:var(--iron-900);padding:clamp(12px,2vw,28px)}
.map-frame canvas{width:100%;height:auto;display:block}
.map-frame .mono{position:absolute;left:14px;bottom:12px;color:var(--steel-dim);letter-spacing:.1em}
.map-frame .map-legend{position:absolute;right:14px;bottom:12px;display:flex;gap:16px}
.map-legend span{display:inline-flex;align-items:center;gap:7px;font-family:var(--ff-mono);font-size:.6rem;letter-spacing:.12em;text-transform:uppercase;color:var(--steel-dim)}
.map-legend i{width:8px;height:8px;border-radius:50%}
.map-legend .lg-live i{background:var(--oxide-bright)}
.map-legend .lg-dev i{border:1px solid var(--steel);background:transparent}
.site-rows{display:flex;flex-direction:column}
.site-row{display:grid;grid-template-columns:64px 1fr auto;gap:14px;align-items:center;padding:15px 4px;border-bottom:1px solid var(--line-dark);transition:background .25s var(--ease),padding .25s var(--ease)}
.site-row:first-child{border-top:1px solid var(--line-dark)}
.site-row:hover{background:var(--iron-850);padding-inline:12px}
.site-row .sr-code{font-family:var(--ff-mono);font-size:.68rem;font-weight:600;letter-spacing:.1em;color:var(--oxide-bright)}
.site-row .sr-name{display:block;font-family:var(--ff-disp);font-stretch:112%;font-weight:600;font-size:1.02rem;color:var(--white)}
.site-row .sr-meta{display:block;font-family:var(--ff-mono);font-size:.66rem;letter-spacing:.06em;color:var(--steel-dim);margin-top:3px}
.site-row .sr-mw{text-align:right}
.site-row .sr-mw .num{font-size:1.1rem;color:var(--white)}
.site-row .sr-mw .mono{color:var(--steel-dim);display:block;margin-top:1px}
@media(max-width:1000px){.map-grid{grid-template-columns:1fr}}

/* ---------- metric callouts (all-caps ledger band) ---------- */
.callouts{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line-dark);border:1px solid var(--line-dark)}
.callout{background:var(--iron-900);padding:30px 26px 32px}
.callout .num{font-size:clamp(2rem,3.4vw,3.1rem);color:var(--white);display:flex;align-items:baseline}
.callout .num i{font-style:normal;font-family:var(--ff-mono);font-weight:500;font-size:.42em;letter-spacing:.04em;color:var(--oxide-bright);margin-left:6px}
.callout .c-label{font-family:var(--ff-mono);font-size:.68rem;font-weight:600;letter-spacing:.2em;text-transform:uppercase;color:var(--steel);margin-top:12px;display:block}
.callout .c-sub{font-size:.84rem;color:var(--steel-dim);margin-top:8px;line-height:1.5}
@media(max-width:1000px){.callouts{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.callouts{grid-template-columns:1fr}}

/* ---------- annotated figure (signature, reused) ---------- */
.figure-anno{position:relative;overflow:hidden;border:1px solid var(--line-dark)}
.on-light .figure-anno{border-color:var(--line-light)}
.figure-anno img{width:100%;height:100%;object-fit:cover;filter:saturate(.8) contrast(1.05)}
.figure-anno .fa-tag{position:absolute;display:flex;flex-direction:column;gap:2px;background:rgba(11,14,17,.72);backdrop-filter:blur(4px);border:1px solid rgba(247,245,238,.25);padding:8px 12px}
.figure-anno .fa-tag .mono{color:var(--white);letter-spacing:.12em;font-size:.62rem}
.figure-anno .fa-tag .mono b{color:var(--oxide-bright)}
.figure-anno .fa-rule{position:absolute;background:rgba(247,245,238,.75)}
.figure-anno .fa-dot{position:absolute;width:7px;height:7px;border-radius:50%;background:var(--oxide-bright);box-shadow:0 0 0 4px rgba(226,85,31,.25)}

/* ---------- split feature (image + content) ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(30px,5vw,84px);align-items:center}
.split--rev>.split-media{order:2}
.split-media{position:relative}
.split-media .figure-anno{aspect-ratio:4/3}
.split-body{display:flex;flex-direction:column;gap:22px;align-items:flex-start}
.split-body .feature-list{display:flex;flex-direction:column;gap:0;width:100%}
.feature-list li{display:grid;grid-template-columns:auto 1fr;gap:14px;padding:14px 0;border-bottom:1px solid var(--line-light);font-size:.95rem;color:var(--ink-soft)}
.sec--iron .feature-list li,.sec--iron-deep .feature-list li{border-bottom-color:var(--line-dark);color:var(--steel)}
.feature-list li:first-child{border-top:1px solid var(--line-light)}
.sec--iron .feature-list li:first-child,.sec--iron-deep .feature-list li:first-child{border-top-color:var(--line-dark)}
.feature-list li b{color:var(--graphite);font-weight:600}
.sec--iron .feature-list li b,.sec--iron-deep .feature-list li b{color:var(--white)}
.feature-list .fl-mark{font-family:var(--ff-mono);font-size:.68rem;font-weight:600;color:var(--oxide);padding-top:3px}
@media(max-width:900px){.split{grid-template-columns:1fr}.split--rev>.split-media{order:0}}

/* ---------- process rail (land → load, a true sequence) ---------- */
.process{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(18px,2.5vw,34px);counter-reset:step}
.step{position:relative;padding-top:22px}
.step::before{content:"";position:absolute;top:0;left:0;right:calc(-1 * clamp(18px,2.5vw,34px));height:1px;background:var(--line-light)}
.sec--iron .step::before,.sec--iron-deep .step::before{background:var(--line-dark)}
.step:last-child::before{right:0}
.step::after{content:"";position:absolute;top:-4px;left:0;width:9px;height:9px;background:var(--oxide);border-radius:1px}
.step .mono{color:var(--flint)}
.sec--iron .step .mono,.sec--iron-deep .step .mono{color:var(--steel-dim)}
.step h3{font-family:var(--ff-disp);font-stretch:114%;font-weight:620;font-size:1.16rem;margin-top:10px}
.step p{font-size:.9rem;color:var(--ink-soft);margin-top:10px}
.sec--iron .step p,.sec--iron-deep .step p{color:var(--steel)}
.step .st-time{display:inline-block;font-family:var(--ff-mono);font-size:.66rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--oxide);margin-top:14px}
.sec--iron .step .st-time,.sec--iron-deep .step .st-time{color:var(--oxide-bright)}
@media(max-width:900px){.process{grid-template-columns:1fr 1fr}.step:nth-child(2n)::before{right:0}}
@media(max-width:560px){.process{grid-template-columns:1fr}.step::before{right:0}}

/* ---------- campus cards ---------- */
.campus-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(18px,2vw,28px)}
.campus{background:var(--iron-900);border:1px solid var(--line-dark);display:flex;flex-direction:column;transition:border-color .3s var(--ease),transform .3s var(--ease)}
.campus:hover{border-color:var(--steel-dim);transform:translateY(-4px)}
.campus-img{position:relative;aspect-ratio:16/10;overflow:hidden}
.campus-img img{width:100%;height:100%;object-fit:cover;filter:saturate(.78) contrast(1.06);transition:transform .8s var(--ease)}
.campus:hover .campus-img img{transform:scale(1.045)}
.campus-img .chip{position:absolute;top:14px;left:14px;background:rgba(11,14,17,.78);backdrop-filter:blur(4px)}
.campus-img .chip.chip--live{background:var(--oxide)}
.campus-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:14px;flex:1}
.campus-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px}
.campus-head .cc-code{font-family:var(--ff-mono);font-size:.66rem;font-weight:600;letter-spacing:.12em;color:var(--oxide-bright)}
.campus-head h3{font-family:var(--ff-disp);font-stretch:116%;font-weight:640;font-size:1.35rem;color:var(--white)}
.campus .cc-loc{font-family:var(--ff-mono);font-size:.68rem;letter-spacing:.06em;color:var(--steel-dim)}
.campus-stats{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line-dark);padding-top:14px;margin-top:auto}
.campus-stats div{border-right:1px solid var(--line-dark);padding-right:12px;margin-right:12px}
.campus-stats div:last-child{border-right:0;padding-right:0;margin-right:0}
.campus-stats .num{font-size:1.16rem;color:var(--white)}
.campus-stats .mono{display:block;font-size:.56rem;color:var(--steel-dim);margin-top:3px}
@media(max-width:1000px){.campus-grid{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.campus-grid{grid-template-columns:1fr}}

/* ---------- articles ---------- */
.art-feature{display:grid;grid-template-columns:1.3fr 1fr;gap:clamp(24px,4vw,60px);align-items:stretch;border:1px solid var(--line-light);background:var(--bone-2)}
.art-feature .af-img{overflow:hidden;min-height:320px}
.art-feature .af-img img{width:100%;height:100%;object-fit:cover;filter:saturate(.8) contrast(1.05)}
.art-feature .af-body{padding:clamp(24px,3vw,44px);display:flex;flex-direction:column;gap:18px;justify-content:center;align-items:flex-start}
.art-feature h3{font-size:clamp(1.4rem,2.2vw,1.9rem);font-family:var(--ff-disp);font-stretch:114%;font-weight:620;letter-spacing:-.01em;max-width:24ch}
@media(max-width:900px){.art-feature{grid-template-columns:1fr}.art-feature .af-img{min-height:220px}}
.art-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(18px,2vw,28px)}
.art-card{display:flex;flex-direction:column;gap:14px;padding:24px 22px 26px;border:1px solid var(--line-light);background:var(--bone);transition:background .3s var(--ease),transform .3s var(--ease)}
.art-card:hover{background:var(--bone-2);transform:translateY(-4px)}
.art-card .ac-meta{display:flex;justify-content:space-between;gap:10px}
.art-card .ac-meta .mono{color:var(--oxide)}
.art-card .ac-meta .ac-date{color:var(--flint)}
.art-card h3{font-family:var(--ff-disp);font-stretch:112%;font-weight:620;font-size:1.18rem;letter-spacing:-.008em;flex:1}
.art-card p{font-size:.9rem;color:var(--ink-soft)}
.art-card .p-link{font-family:var(--ff-mono);font-size:var(--fs-mono-xs);font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--oxide);display:inline-flex;gap:10px}
@media(max-width:900px){.art-grid{grid-template-columns:1fr}}

/* ---------- letter (the one serif moment) ---------- */
.letter{max-width:760px;margin:0 auto;text-align:left}
.letter .letter-body{font-family:var(--ff-serif);font-style:italic;font-size:clamp(1.25rem,2vw,1.7rem);line-height:1.55;color:var(--graphite);letter-spacing:.002em}
.sec--iron .letter .letter-body,.sec--iron-deep .letter .letter-body{color:var(--white)}
.letter .letter-body em{color:var(--oxide);font-style:italic}
.sec--iron .letter .letter-body em{color:var(--oxide-bright)}
.letter .letter-sig{margin-top:30px;display:flex;align-items:center;gap:16px}
.letter .letter-sig .mono{color:var(--flint)}

/* ---------- team ---------- */
.team-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line-light);border:1px solid var(--line-light)}
.person{background:var(--bone);padding:26px 24px 28px;display:flex;flex-direction:column;gap:6px;min-height:170px;transition:background .3s var(--ease)}
.person:hover{background:var(--bone-2)}
.person .p-init{font-family:var(--ff-mono);font-size:.66rem;font-weight:600;letter-spacing:.14em;color:var(--oxide);margin-bottom:10px}
.person h3{font-family:var(--ff-disp);font-stretch:114%;font-weight:640;font-size:1.22rem}
.person .p-role{font-size:.88rem;color:var(--ink-soft)}
.person .p-prior{font-family:var(--ff-mono);font-size:.64rem;letter-spacing:.04em;color:var(--flint);margin-top:auto;padding-top:14px}
@media(max-width:900px){.team-grid{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.team-grid{grid-template-columns:1fr}}

/* ---------- timeline (about) ---------- */
.years{display:flex;flex-direction:column}
.year-row{display:grid;grid-template-columns:minmax(90px,140px) 1fr;gap:clamp(20px,4vw,60px);padding:26px 0;border-bottom:1px solid var(--line-light)}
.year-row:first-child{border-top:1px solid var(--line-light)}
.year-row .num{font-size:clamp(1.5rem,2.6vw,2.2rem);color:var(--oxide)}
.year-row h3{font-family:var(--ff-disp);font-stretch:112%;font-weight:620;font-size:1.18rem}
.year-row p{font-size:.94rem;color:var(--ink-soft);margin-top:8px;max-width:64ch}

/* ---------- doors (three ways in) ---------- */
.doors{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line-dark);border:1px solid var(--line-dark)}
.door{background:var(--iron-900);padding:34px 30px 38px;display:flex;flex-direction:column;gap:16px;min-height:300px;transition:background .3s var(--ease)}
.door:hover{background:var(--iron-850)}
.door .mono{color:var(--oxide-bright)}
.door h3{font-family:var(--ff-disp);font-stretch:116%;font-weight:640;font-size:1.5rem;color:var(--white);max-width:12ch}
.door p{font-size:.92rem;color:var(--steel);flex:1}
.door .p-link{font-family:var(--ff-mono);font-size:var(--fs-mono-xs);font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--white);display:inline-flex;gap:10px;align-items:center}
.door .p-link .ar{color:var(--oxide-bright);transition:transform .25s var(--ease)}
.door:hover .p-link .ar{transform:translateX(4px)}
@media(max-width:900px){.doors{grid-template-columns:1fr}.door{min-height:0}}

/* ---------- spec table ---------- */
.spec-table{width:100%;border-collapse:collapse}
.spec-table th,.spec-table td{text-align:left;padding:15px 18px;border:1px solid var(--line-dark);font-size:.92rem;vertical-align:top}
.spec-table th{font-family:var(--ff-mono);font-size:.66rem;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--steel);background:var(--iron-850)}
.spec-table td{color:var(--steel)}
.spec-table td:first-child{color:var(--white);font-weight:500;white-space:nowrap}
.spec-table td .num{color:var(--white)}
.table-scroll{overflow-x:auto}
.on-light .spec-table th{background:var(--bone-2);color:var(--flint)}
.on-light .spec-table th,.on-light .spec-table td{border-color:var(--line-light)}
.on-light .spec-table td{color:var(--ink-soft)}
.on-light .spec-table td:first-child,.on-light .spec-table td .num{color:var(--graphite)}

/* ---------- contact form ---------- */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-grid .fg-full{grid-column:1/-1}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-family:var(--ff-mono);font-size:.64rem;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--steel)}
.field input,.field select,.field textarea{font-family:var(--ff-body);font-size:.95rem;color:var(--white);background:var(--iron-850);border:1px solid var(--line-dark);border-radius:2px;padding:13px 14px;transition:border-color .2s}
.field textarea{resize:vertical;min-height:120px}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--oxide-bright)}
.field input::placeholder,.field textarea::placeholder{color:var(--steel-dim)}
@media(max-width:640px){.form-grid{grid-template-columns:1fr}}

/* ---------- cta band ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--iron-950);color:var(--white)}
.cta-band .cta-media{position:absolute;inset:0}
.cta-band .cta-media img{width:100%;height:100%;object-fit:cover;filter:saturate(.7) contrast(1.05) brightness(.5)}
.cta-band .cta-media::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(11,14,17,.92),rgba(11,14,17,.55))}
.cta-band .shell{position:relative;z-index:2}
.cta-band h2{font-size:clamp(1.9rem,3.8vw,3.2rem);max-width:18ch}
.cta-band .lede{color:var(--steel)}

/* ---------- footer ---------- */
.footer{background:var(--iron-950);color:var(--steel);border-top:1px solid var(--line-dark-soft)}
.footer-top{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:clamp(24px,4vw,60px);padding-block:clamp(44px,6vw,72px)}
.footer-brand{display:flex;flex-direction:column;gap:20px;align-items:flex-start}
.footer-brand p{font-size:.9rem;color:var(--steel-dim);max-width:34ch}
.footer h4{font-family:var(--ff-mono);font-size:.64rem;font-weight:600;letter-spacing:.22em;text-transform:uppercase;color:var(--steel-dim);margin-bottom:18px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:.92rem;color:var(--steel);transition:color .2s}
.footer-col a:hover{color:var(--white)}
.footer-offices{display:flex;flex-direction:column;gap:16px}
.footer-offices .fo{font-size:.88rem;color:var(--steel)}
.footer-offices .fo .mono{display:block;color:var(--steel-dim);margin-bottom:3px;letter-spacing:.16em}
.footer-certs{display:flex;flex-wrap:wrap;gap:10px;padding-block:22px;border-top:1px solid var(--line-dark-soft)}
.cert{font-family:var(--ff-mono);font-size:.6rem;font-weight:500;letter-spacing:.14em;text-transform:uppercase;color:var(--steel-dim);border:1px solid var(--line-dark);border-radius:2px;padding:6px 10px}
.footer-legal{display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;padding-block:22px;border-top:1px solid var(--line-dark-soft);font-size:.8rem;color:var(--steel-dim)}
.footer-legal .fl-links{display:flex;gap:20px;flex-wrap:wrap}
.footer-legal a:hover{color:var(--white)}
@media(max-width:1000px){.footer-top{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.footer-top{grid-template-columns:1fr}}

/* ---------- page router / layout helpers ---------- */
.page{display:block}
.page.is-live{display:block}
.two-col{display:grid;grid-template-columns:minmax(280px,440px) 1fr;gap:clamp(28px,5vw,90px);align-items:start}
@media(max-width:900px){.two-col{grid-template-columns:1fr}}
.stack-v{display:flex;flex-direction:column;gap:22px;align-items:flex-start}
.mt-lg{margin-top:clamp(44px,6vw,80px)}
.mt-md{margin-top:clamp(28px,4vw,48px)}
.mt-sm{margin-top:18px}

/* page hero (interior pages) */
.p-hero{position:relative;min-height:min(64vh,620px);display:flex;flex-direction:column;justify-content:flex-end;overflow:hidden;background:var(--iron-950);color:var(--white)}
.p-hero .hero-media img{filter:saturate(.78) contrast(1.06) brightness(.8)}
.p-hero .hero-scrim{background:linear-gradient(180deg,rgba(11,14,17,.66) 0%,rgba(11,14,17,.25) 45%,rgba(11,14,17,.9) 100%)}
.p-hero .hero-content{padding-top:120px;padding-bottom:clamp(40px,6vw,68px)}
.p-hero h1{font-size:clamp(2.3rem,5vw,4.4rem);max-width:16ch;margin-top:20px}
.p-hero .lede{margin-top:20px;color:#C9CDCA}

/* ---------- reveals & motion ---------- */
.rv{opacity:0;transform:translateY(22px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.rv.is-in{opacity:1;transform:none}
.rv-d1{transition-delay:.08s}.rv-d2{transition-delay:.16s}.rv-d3{transition-delay:.24s}.rv-d4{transition-delay:.32s}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .rv{opacity:1;transform:none;transition:none}
  .marquee-track{animation:none}
  .sched-fill{transition:none}
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important}
}


/* annotation vocabulary, shared by hero + figures */
.fa-tag{position:absolute;display:flex;flex-direction:column;gap:2px;background:rgba(11,14,17,.72);backdrop-filter:blur(4px);border:1px solid rgba(247,245,238,.25);padding:8px 12px;z-index:3}
.fa-tag .mono{color:var(--white);letter-spacing:.12em;font-size:.62rem}
.fa-tag .mono b{color:var(--oxide-bright)}
.fa-rule{position:absolute;background:rgba(247,245,238,.65);z-index:2}
.fa-dot{position:absolute;width:7px;height:7px;border-radius:50%;background:var(--oxide-bright);box-shadow:0 0 0 4px rgba(226,85,31,.22);z-index:2}
.hero .fa-tag,.hero .fa-rule,.hero .fa-dot{opacity:0}
.hero.anno-in .fa-tag,.hero.anno-in .fa-rule,.hero.anno-in .fa-dot{opacity:1;transition:opacity .8s var(--ease)}
.hero.anno-in .an-1{transition-delay:.9s}
.hero.anno-in .an-2{transition-delay:1.25s}
.hero.anno-in .an-3{transition-delay:1.6s}
@media(max-width:900px){.hero .fa-tag,.hero .fa-rule,.hero .fa-dot{display:none}}
@media(prefers-reduced-motion:reduce){.hero .fa-tag,.hero .fa-rule,.hero .fa-dot{opacity:1}}


/* ============================================================
   MOTION SYSTEM — progressive enhancement, reduced-motion safe
   ============================================================ */
/* cross-document view transitions (production page nav) */
@view-transition{navigation:auto}
::view-transition-old(root){animation:vt-out .3s ease both}
::view-transition-new(root){animation:vt-in .55s cubic-bezier(.16,1,.3,1) both}
@keyframes vt-out{to{opacity:0}}
@keyframes vt-in{from{opacity:0;transform:translateY(12px)}}
@media (prefers-reduced-motion:reduce){::view-transition-old(root),::view-transition-new(root){animation:none}}

/* film grain — iron has texture */
body::after{content:"";position:fixed;inset:0;z-index:220;pointer-events:none;opacity:.05;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='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)'/%3E%3C/svg%3E");background-size:160px 160px}

/* sheet rules draw themselves (the drawing set, drawing) */
.sheethead{border-top:0 !important;position:relative}
.sheethead::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:var(--line-light);transform:scaleX(0);transform-origin:left;transition:transform 1.15s var(--ease) .15s}
.sec--iron .sheethead::before,.sec--iron-deep .sheethead::before{background:var(--line-dark)}
.sheethead.is-in::before{transform:scaleX(1)}
.dimline .dl-bar{transform:scaleX(0);transform-origin:left;transition:transform .9s var(--ease) .55s}
.rv.is-in .dimline .dl-bar,.dimline.is-in .dl-bar{transform:scaleX(1)}

/* hero media: settle on load, drift on scroll where supported */
.hero .hero-media,.p-hero .hero-media{animation:hero-settle 2s var(--ease) both}
@keyframes hero-settle{from{transform:scale(1.045)}to{transform:scale(1)}}
@supports (animation-timeline: view()){
  .hero .hero-media img,.p-hero .hero-media img{animation:hero-drift linear both;animation-timeline:view();animation-range:exit 0% exit 100%}
  @keyframes hero-drift{from{transform:scale(1.12)}to{transform:scale(1.12) translateY(5.5%)}}
}
@media (prefers-reduced-motion:reduce){.hero .hero-media,.p-hero .hero-media,.hero .hero-media img,.p-hero .hero-media img{animation:none}}

/* hero headline: word-mask reveal (JS wraps words; no JS = plain text) */
.hw{display:inline-block;overflow:hidden;vertical-align:top;padding-bottom:.1em;margin-bottom:-.1em}
.hw>span{display:inline-block;transform:translateY(114%);transition:transform .9s var(--ease);transition-delay:calc(var(--wd,0)*55ms)}
.words-in .hw>span{transform:none}
@media (prefers-reduced-motion:reduce){.hw>span{transform:none;transition:none}}

/* hero stat ledger rule draws after annotations land */
.hero-stats{border-top:0;position:relative}
.hero-stats::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:rgba(247,245,238,.22);transform:scaleX(0);transform-origin:left;transition:transform 1.5s var(--ease) .5s}
.hero.anno-in .hero-stats::before{transform:scaleX(1)}
@media (prefers-reduced-motion:reduce){.hero-stats::before{transform:scaleX(1)}}

/* nav: hide on scroll down, return on scroll up; underline draws */
.nav{transition:transform .45s var(--ease)}
.nav.nav--hidden{transform:translateY(-100%)}
body.menu-open .nav{transform:none}
.nav-links a{border-bottom:0;padding-bottom:7px;background-image:linear-gradient(currentColor,currentColor);background-repeat:no-repeat;background-size:0% 1px;background-position:0 100%;transition:color .2s,background-size .35s var(--ease)}
.nav-links a:hover{background-size:100% 1px}
.nav-links a.is-active{background-image:linear-gradient(var(--oxide-bright),var(--oxide-bright));background-size:100% 1px}

/* small life */
.marquee:hover .marquee-track{animation-play-state:paused}
.figure-anno .fa-tag{transition:transform .4s var(--ease),border-color .3s}
.figure-anno:hover .fa-tag{transform:translateY(-3px);border-color:rgba(247,245,238,.5)}