/* ============ TOKENS ============ */
:root{
  --bg:        #0A0A0B;
  --bg-alt:    #101012;
  --ink:       #ECE8E1;
  --ink-muted: #8A8781;
  --accent:    #F2610C;
  --cold:      #5A6470;
  --hairline:  #232326;
  --display:   "Space Grotesk", "Archivo", Inter, system-ui, sans-serif;
  --mono:      "JetBrains Mono", "IBM Plex Mono", ui-monospace, monospace;
  --ls-label:  0.15em;
  --gutter:    clamp(20px, 4vw, 48px);
  --maxw:      1240px;
}

/* ============ BASE ============ */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:auto}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:var(--display);
  font-weight:400;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
::selection{background:var(--accent);color:var(--bg)}
a{color:inherit;text-decoration:none}
a.ext{border-bottom:1px solid var(--hairline);transition:border-color .18s ease,color .18s ease}
a.ext:hover{border-bottom-color:var(--accent);color:var(--accent)}
a:focus-visible,button:focus-visible{outline:1px solid var(--accent);outline-offset:4px}
img,canvas,svg{display:block}

.mono{font-family:var(--mono)}
.label{
  font-family:var(--mono);
  font-size:11px;
  font-weight:500;
  letter-spacing:var(--ls-label);
  text-transform:uppercase;
  color:var(--ink-muted);
}
.wrap{max-width:var(--maxw);margin:0 auto;padding-left:var(--gutter);padding-right:var(--gutter)}

/* ============ HEADER ============ */
.site-head{
  position:fixed;inset:0 0 auto 0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  padding:20px var(--gutter);
  mix-blend-mode:normal;
}
.site-head .wordmark{
  font-family:var(--mono);font-size:13px;font-weight:500;
  letter-spacing:0.28em;color:var(--ink);
}
.site-head .wordmark{display:inline-flex;align-items:center;gap:11px;text-decoration:none}
.site-head .wordmark .wm-mark{height:22px;width:22px;display:block;flex:none}
.site-head .wordmark .wm-type{font-family:var(--mono);font-size:13px;font-weight:500;letter-spacing:0.26em;text-transform:uppercase;color:var(--ink);line-height:1}
.site-head .head-link{
  font-family:var(--mono);font-size:11px;letter-spacing:var(--ls-label);
  text-transform:uppercase;color:var(--ink-muted);
  border-bottom:1px solid transparent;padding-bottom:2px;
  transition:color .25s ease,border-color .25s ease;
}
.site-head .head-link:hover{color:var(--accent);border-color:var(--accent)}

/* ============ HERO ============ */
.hero{position:relative;height:320vh}
.hero-sticky{
  position:sticky;top:0;height:100vh;height:100svh;
  overflow:hidden;background:var(--bg);
}
#scene{position:absolute;inset:0;width:100%;height:100%}
.vignette{
  position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(ellipse 90% 75% at 50% 48%, transparent 55%, rgba(5,5,6,0.55) 100%);
}
.scanline{ /* single faint horizontal sensor sweep line, near-static */
  position:absolute;left:0;right:0;top:34%;height:1px;
  background:rgba(236,232,225,0.03);pointer-events:none;
}

/* HUD */
.hud{
  position:absolute;inset:0;pointer-events:none;
  font-family:var(--mono);font-size:12px;font-weight:400;
  letter-spacing:0.08em;color:var(--ink-muted);
}
.hud .corner{position:absolute}
.hud .tl{top:max(64px, 8vh);left:var(--gutter)}
.hud .tr{top:max(64px, 8vh);right:var(--gutter);text-align:right}
.hud .bl{bottom:6vh;left:var(--gutter)}
.hud .br{bottom:6vh;right:var(--gutter);text-align:right}
.hud .row{display:block;margin-bottom:6px;white-space:nowrap}
.hud .state-searching{color:var(--cold)}
.hud .state-acquiring{color:var(--cold)}
.hud .state-tracking{color:var(--accent)}
.hud .state-lock{color:var(--accent)}
.hud .denied{color:var(--accent)}
.hud .cold{color:var(--cold)}
.hud .lock-confirm{
  color:var(--accent);opacity:0;transition:opacity .12s linear;
}
.hud .lock-confirm.on{opacity:1}
.hud .cand{
  color:var(--accent);opacity:0;transition:opacity .2s linear;
}
.hud .cand.on{opacity:1}
.lockbar{
  width:180px;height:1px;background:var(--hairline);
  margin-top:10px;position:relative;
}
.lockbar-fill{
  position:absolute;left:0;top:0;bottom:0;width:0%;
  background:var(--cold);transition:background .3s ease;
}
.lockbar-fill.hot{background:var(--accent)}
.hud .demo-note{font-size:10px;opacity:.55;letter-spacing:0.12em}

/* Hero copy: lower third */
.hero-copy{
  position:absolute;left:0;right:0;bottom:14vh;z-index:5;
  padding:0 var(--gutter);
  transition:opacity .3s linear;
}
.hero-copy h1{
  font-family:var(--display);
  font-weight:600;
  font-size:clamp(2.4rem, 6.2vw, 5.4rem);
  line-height:1.02;
  letter-spacing:-0.02em;
  max-width:14ch;
  text-wrap:balance;
}
.hero-copy .sub{
  margin-top:20px;
  font-family:var(--mono);font-size:12px;letter-spacing:var(--ls-label);
  text-transform:uppercase;color:var(--ink-muted);
}
.hero-fade{
  position:absolute;inset:0;background:var(--bg);
  opacity:0;pointer-events:none;
}

/* Scroll hint */
.scroll-hint{
  position:absolute;left:50%;bottom:5vh;transform:translateX(-50%);
  font-family:var(--mono);font-size:10px;letter-spacing:0.3em;
  color:var(--ink-muted);text-transform:uppercase;
  transition:opacity .4s ease;
}

/* ============ SECTIONS ============ */
section.block{padding:clamp(96px,14vh,180px) 0;border-top:1px solid var(--hairline)}
.thesis{background:var(--bg)}
.thesis .statement{
  font-family:var(--display);font-weight:600;
  font-size:clamp(1.9rem, 4.4vw, 3.8rem);
  line-height:1.12;letter-spacing:-0.015em;
  max-width:22ch;
}
.thesis .statement em{font-style:normal;color:var(--ink-muted)}
.thesis .follow{
  margin-top:40px;max-width:52ch;color:var(--ink-muted);
  font-size:clamp(1rem,1.4vw,1.125rem);line-height:1.7;
}
.section-tag{margin-bottom:56px}

/* Capability */
.capability{background:var(--bg-alt)}
.cap-head{
  font-family:var(--display);font-weight:600;
  font-size:clamp(1.8rem,3.6vw,3rem);letter-spacing:-0.015em;line-height:1.1;
  max-width:20ch;margin-bottom:72px;
}
.cap-grid{
  display:grid;grid-template-columns:repeat(3,1fr);
  border-top:1px solid var(--hairline);
}
.cap-cell{
  padding:36px 32px 44px 0;
  border-bottom:1px solid var(--hairline);
}
.cap-cell + .cap-cell{border-left:1px solid var(--hairline);padding-left:32px}
.cap-cell .label{display:block;margin-bottom:18px;color:var(--ink)}
.cap-cell p{color:var(--ink-muted);font-size:0.975rem;line-height:1.65;max-width:34ch}
.cap-loop{
  margin-top:56px;font-family:var(--mono);font-size:11px;
  letter-spacing:var(--ls-label);text-transform:uppercase;color:var(--ink-muted);
}
.cap-loop .arrow{color:var(--cold);padding:0 .6em}
.cap-loop .human{color:var(--ink)}

/* Proof */
.proof{background:var(--bg)}
.proof-grid{
  display:grid;grid-template-columns:1fr 1fr 1fr;
  border-top:1px solid var(--hairline);border-bottom:1px solid var(--hairline);
}
.proof-cell{padding:48px 36px 48px 0}
.proof-cell + .proof-cell{border-left:1px solid var(--hairline);padding-left:36px}
.big-stat{
  font-family:var(--mono);font-weight:500;
  font-size:clamp(3rem,6vw,5rem);line-height:1;
  color:var(--accent);letter-spacing:-0.03em;
}
.stat-label{margin-top:20px;line-height:1.9}
.proof-qual{
  font-family:var(--display);font-weight:500;
  font-size:clamp(1.15rem,1.8vw,1.45rem);line-height:1.4;
  max-width:24ch;
}
.mid-stat{
  font-family:var(--mono);font-weight:500;
  font-size:clamp(1.5rem,2.8vw,2.3rem);line-height:1.4;
  color:var(--accent);letter-spacing:-0.01em;
}
.proof-foot{
  margin-top:28px;font-family:var(--mono);font-size:10px;
  letter-spacing:0.12em;text-transform:uppercase;color:var(--ink-muted);opacity:.7;
  line-height:2;
}

/* Link budget */
.lb-wrap{margin-top:64px;border-top:1px solid var(--hairline);padding-top:44px}
.lb-row{display:grid;grid-template-columns:200px 1fr;gap:24px;align-items:center;padding:18px 0}
.lb-row + .lb-row{border-top:1px solid var(--hairline)}
.lb-name{font-family:var(--mono);font-size:11px;letter-spacing:var(--ls-label);text-transform:uppercase;color:var(--ink-muted)}
.lb-name b{display:block;color:var(--ink);font-weight:500;letter-spacing:0.08em;font-size:13px;margin-bottom:5px}
.lb-track{position:relative;height:26px;background:rgba(255,255,255,0.015);border:1px solid var(--hairline)}
.lb-bar{position:absolute;left:0;top:0;bottom:0}
.lb-bar.video{background:var(--cold);width:100%}
.lb-bar.json{background:var(--accent);opacity:.45;width:0.502%;min-width:2px}
.lb-bar.compact{background:var(--accent);width:0.028%;min-width:2px;box-shadow:0 0 10px rgba(242,97,12,.8)}
.lb-tag{position:absolute;top:50%;transform:translateY(-50%);left:14px;font-family:var(--mono);font-size:11px;letter-spacing:0.1em;color:var(--bg);mix-blend-mode:normal}
.lb-tag.out{left:auto;right:auto;color:var(--ink-muted)}
.lb-ratio{margin-top:44px;display:flex;align-items:baseline;gap:20px;flex-wrap:wrap}
.lb-ratio .n{font-family:var(--mono);font-weight:500;font-size:clamp(2.4rem,5vw,4rem);color:var(--accent);letter-spacing:-0.03em;line-height:1}
.lb-ratio .t{font-family:var(--mono);font-size:11px;letter-spacing:var(--ls-label);text-transform:uppercase;color:var(--ink-muted);max-width:38ch;line-height:2}

/* Position / comparison */
.position{background:var(--bg-alt)}
.pos-head{font-family:var(--display);font-weight:600;font-size:clamp(1.8rem,3.6vw,3rem);letter-spacing:-0.015em;line-height:1.1;max-width:22ch;margin-bottom:20px}
.pos-sub{max-width:56ch;color:var(--ink-muted);line-height:1.75;margin-bottom:64px;font-size:clamp(1rem,1.35vw,1.1rem)}
.pos-table{border-top:1px solid var(--hairline)}
.pos-r{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,64px);padding:28px 0;border-bottom:1px solid var(--hairline)}
.pos-r .a{color:var(--ink-muted);font-size:1rem;line-height:1.7}
.pos-r .b{color:var(--ink);font-size:1rem;line-height:1.7}
.pos-r .a .k,.pos-r .b .k{display:block;font-family:var(--mono);font-size:10px;letter-spacing:var(--ls-label);text-transform:uppercase;margin-bottom:10px}
.pos-r .a .k{color:var(--cold)}
.pos-r .b .k{color:var(--accent)}
.pos-foot{margin-top:40px;max-width:60ch;color:var(--ink-muted);font-size:0.975rem;line-height:1.75}
.pos-foot strong{color:var(--ink);font-weight:500}

/* Placeholders: unfilled values stay visible in the cold color. Never invented. */
.ph{
  font-family:var(--mono);font-size:0.85em;
  color:var(--cold);letter-spacing:0.08em;
}

/* Architecture */
.architecture{background:var(--bg)}
.arch-svg{width:100%;max-width:1000px;height:auto;margin-top:8px}
.arch-svg text{font-family:var(--mono);letter-spacing:1.5px}
.arch-svg-m{display:none;max-width:360px}
.arch-caption{
  margin-top:36px;font-family:var(--mono);font-size:11px;
  letter-spacing:var(--ls-label);text-transform:uppercase;color:var(--ink-muted);
}

/* The product: autonomous card */
.product-sec{background:var(--bg);padding:clamp(120px,18vh,220px) 0;border-top:1px solid var(--hairline)}
.product-card{
  position:relative;max-width:980px;margin:72px auto 0;
  background:var(--bg-alt);border:1px solid var(--hairline);
}
/* reveal: hidden state only applies once JS arms it (no-JS users see the card) */
.product-card.anim-ready{opacity:0;transform:translateY(12px)}
.product-card.anim-ready.in{
  opacity:1;transform:translateY(0);
  transition:opacity .6s ease,transform .6s ease;
}
/* signature: accent corner brackets, the hero reticle motif, product "acquired" */
.cb{position:absolute;width:18px;height:18px;pointer-events:none}
.cb-tl{top:-1px;left:-1px;border-top:1px solid var(--accent);border-left:1px solid var(--accent)}
.cb-tr{top:-1px;right:-1px;border-top:1px solid var(--accent);border-right:1px solid var(--accent)}
.cb-bl{bottom:-1px;left:-1px;border-bottom:1px solid var(--accent);border-left:1px solid var(--accent)}
.cb-br{bottom:-1px;right:-1px;border-bottom:1px solid var(--accent);border-right:1px solid var(--accent)}
.anim-ready .cb{width:0;height:0}
.anim-ready.in .cb{
  width:18px;height:18px;
  transition:width .4s ease .18s,height .4s ease .18s;
}
.module-plate{
  position:absolute;top:0;left:28px;transform:translateY(-50%);
  background:var(--bg);padding:0 12px;
  font-family:var(--mono);font-size:10px;font-weight:500;
  letter-spacing:var(--ls-label);text-transform:uppercase;color:var(--ink-muted);
}
.pc-grid{display:grid;grid-template-columns:42fr 58fr}
.pc-left{padding:20px}
.pc-inset{
  background:var(--bg);height:100%;min-height:380px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:28px;text-align:center;padding:24px;
}
.pc-reticle{opacity:.75}
.pc-right{border-left:1px solid var(--hairline);padding:48px 48px 40px}
.pc-wordmark{
  font-family:var(--display);font-weight:600;
  font-size:clamp(2.2rem,4vw,3.4rem);letter-spacing:-0.02em;line-height:1;
}
.pc-line{margin-top:14px;color:var(--ink-muted);font-size:0.975rem;line-height:1.6}
.pc-trl{margin-top:14px;font-size:10px}
.pg-head{
  font-family:var(--mono);font-size:11px;font-weight:500;
  letter-spacing:var(--ls-label);text-transform:uppercase;
  margin-top:40px;padding-bottom:14px;border-bottom:1px solid var(--hairline);
}
.pg-head.measured{color:var(--ink)}
.pg-head.target{color:var(--cold)}
.pg-row{
  display:grid;grid-template-columns:185px 1fr;gap:20px;
  padding:12px 0;border-bottom:1px solid var(--hairline);
  align-items:baseline;
}
.pg-row .label{font-size:10px}
.pg-row .pg-val{font-family:var(--mono);font-size:12.5px;color:var(--ink);line-height:1.7}
.pg-row .pg-val.ph{color:var(--cold)}
.pc-foot{
  margin-top:24px;font-family:var(--mono);font-size:10px;
  letter-spacing:0.12em;text-transform:uppercase;color:var(--ink-muted);opacity:.7;
  line-height:2;
}

/* Integrators */
.integrators{background:var(--bg-alt)}
.about{background:var(--bg)}
.about-head{font-family:var(--display);font-weight:600;font-size:clamp(1.8rem,3.6vw,3rem);letter-spacing:-0.015em;line-height:1.1;max-width:20ch;margin-bottom:48px}
.about-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:clamp(40px,6vw,96px);align-items:start}
.about-body p{color:var(--ink-muted);font-size:clamp(1rem,1.35vw,1.1rem);line-height:1.75;max-width:56ch}
.about-body p + p{margin-top:22px}
.about-body strong{color:var(--ink);font-weight:500}
.about-facts{border-top:1px solid var(--hairline)}
.about-facts .f{display:grid;grid-template-columns:auto 1fr;gap:20px;padding:16px 0;border-bottom:1px solid var(--hairline);align-items:baseline}
.about-facts .f .v{font-family:var(--mono);font-size:0.9rem;color:var(--ink);text-align:right}
.int-head{
  font-family:var(--display);font-weight:600;
  font-size:clamp(1.8rem,3.6vw,3rem);letter-spacing:-0.015em;line-height:1.1;
  max-width:18ch;
}
.int-sub{margin-top:28px;max-width:50ch;color:var(--ink-muted);line-height:1.7;margin-bottom:72px}
.spec{border-top:1px solid var(--hairline)}
.spec-row{
  display:grid;grid-template-columns:220px 1fr;gap:32px;
  padding:26px 0;border-bottom:1px solid var(--hairline);
  align-items:baseline;
}
.spec-row .val{color:var(--ink);font-size:1.05rem}
.spec-row .val span{color:var(--ink-muted)}
.spec-row .val span.now{color:var(--accent);font-weight:500}

/* CTA */
.cta{background:var(--bg);text-align:left}
.cta-inner{display:flex;flex-direction:column;align-items:flex-start;gap:48px}
.cta h2{
  font-family:var(--display);font-weight:600;
  font-size:clamp(2rem,4.4vw,3.6rem);letter-spacing:-0.02em;line-height:1.08;
  max-width:18ch;
}
.btn{
  display:inline-block;
  font-family:var(--mono);font-size:12px;font-weight:500;
  letter-spacing:var(--ls-label);text-transform:uppercase;
  color:var(--accent);
  border:1px solid var(--accent);
  padding:18px 40px;
  background:transparent;cursor:pointer;
  transition:background .25s ease,color .25s ease;
}
.btn:hover{background:var(--accent);color:var(--bg)}
.cta .aside{font-family:var(--mono);font-size:11px;letter-spacing:0.12em;color:var(--ink-muted)}

/* Footer */
footer{
  border-top:1px solid var(--hairline);
  padding:40px 0 48px;
  font-family:var(--mono);font-size:10px;letter-spacing:0.14em;
  text-transform:uppercase;color:var(--ink-muted);
}
footer .wrap{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}

/* ============ RESPONSIVE ============ */
@media (max-width:860px){
  .cap-grid,.proof-grid{grid-template-columns:1fr}
  .cap-cell + .cap-cell,.proof-cell + .proof-cell{border-left:0;padding-left:0}
  .cap-cell,.proof-cell{padding-right:0}
  .spec-row{grid-template-columns:1fr;gap:10px;padding:22px 0}
  .hud{font-size:10.5px}
  .lockbar{width:120px}
  .hero{height:260vh}
  .hud .br .demo-note{display:none}
  .hud .bl-demo{display:block !important}
  .pc-grid{grid-template-columns:1fr}
  .pc-inset{min-height:240px}
  .pc-right{border-left:0;border-top:1px solid var(--hairline);padding:36px 24px 32px}
  .pg-row{grid-template-columns:1fr;gap:4px}
  .about-grid{grid-template-columns:1fr;gap:44px}
  .about-facts .f{grid-template-columns:1fr;gap:4px}
  .about-facts .f .v{text-align:left}
  .product-card{margin-top:56px}
  .lb-row{grid-template-columns:1fr;gap:12px;padding:20px 0}
  .lb-tag{display:none}
  .lb-name b{font-size:15px}
  .pos-r{grid-template-columns:1fr;gap:20px}
}
@media (max-width:700px){
  .arch-svg{display:none}
  .arch-svg-m{display:block}
}


/* ============ RETICLE CURSOR ============ */
/* Only on precise pointers. Native cursor is restored for touch and for
   reduced-motion users, so nobody loses the pointer they rely on. */
@media (hover:hover) and (pointer:fine){
  body.reticle-on,
  body.reticle-on a,
  body.reticle-on button,
  body.reticle-on .btn{cursor:none}
}
.reticle{
  position:fixed;top:0;left:0;width:28px;height:28px;
  margin:-14px 0 0 -14px;
  pointer-events:none;z-index:9999;
  opacity:0;
  transform:translate3d(-100px,-100px,0);
  transition:opacity .18s linear;
  will-change:transform;
}
.reticle.visible{opacity:1}
.reticle .rk{
  position:absolute;width:8px;height:8px;
  border:1px solid var(--cold);
  transition:border-color .18s ease;
}
.reticle .rk.tl{top:0;left:0;border-right:0;border-bottom:0}
.reticle .rk.tr{top:0;right:0;border-left:0;border-bottom:0}
.reticle .rk.bl{bottom:0;left:0;border-right:0;border-top:0}
.reticle .rk.br{bottom:0;right:0;border-left:0;border-top:0}
.reticle .rdot{
  position:absolute;left:50%;top:50%;width:2px;height:2px;
  margin:-1px 0 0 -1px;background:var(--cold);
  transition:background .18s ease,width .18s ease,height .18s ease,margin .18s ease;
}
.reticle .rbox{
  position:absolute;inset:0;
  transform:scale(1);
  transition:transform .22s cubic-bezier(.2,.85,.25,1);
}
/* lock state over anything clickable */
.reticle.lock .rbox{transform:scale(.62)}
.reticle.lock .rk{border-color:var(--accent)}
.reticle.lock .rdot{background:var(--accent);width:3px;height:3px;margin:-1.5px 0 0 -1.5px}

@media (prefers-reduced-motion: reduce){
  .reticle{display:none}
}

/* ============ REDUCED MOTION ============ */
@media (prefers-reduced-motion: reduce){
  .hero{height:100vh;height:100svh}
  .scroll-hint{display:none}
  .product-card.anim-ready{opacity:1;transform:none;transition:none}
  .product-card.anim-ready .cb{width:18px;height:18px;transition:none}
}
/* ============ MULTI-PAGE: NAV, CRUMB, INTERIOR HEADS ============ */
.site-head .nav{display:flex;align-items:center;gap:clamp(14px,2.4vw,30px)}
.site-head .nav a{
  font-family:var(--mono);font-size:11px;font-weight:500;
  letter-spacing:var(--ls-label);text-transform:uppercase;color:var(--ink-muted);
  padding:4px 0;border-bottom:1px solid transparent;transition:color .18s ease,border-color .18s ease;
}
.site-head .nav a:hover,.site-head .nav a[aria-current="page"]{color:var(--ink);border-bottom-color:var(--accent)}

.page-top{padding-top:clamp(96px,13vh,150px)}
.crumb{font-family:var(--mono);font-size:11px;letter-spacing:var(--ls-label);
  text-transform:uppercase;color:var(--ink-muted);margin-bottom:26px}
.crumb a{border-bottom:1px solid var(--hairline)}
.crumb a:hover{color:var(--accent);border-bottom-color:var(--accent)}
.crumb .sep{opacity:.4;padding:0 8px}

.page-h{
  font-size:clamp(30px,5.2vw,60px);font-weight:600;line-height:1.05;
  letter-spacing:-0.02em;max-width:17ch;margin:6px 0 20px;
}
.page-lede{font-size:clamp(15px,1.55vw,19px);line-height:1.62;color:var(--ink-muted);max-width:64ch}
.page-lede strong{color:var(--ink);font-weight:500}
.page-rule{height:1px;background:var(--hairline);margin:clamp(38px,6vh,64px) 0}

/* ============ PRODUCT INDEX ============ */
.line-grid{display:grid;gap:20px;margin-top:38px}
.line-card{
  display:block;border:1px solid var(--hairline);background:var(--bg-alt);
  padding:clamp(24px,3.4vw,42px);position:relative;
  transition:border-color .2s ease,background .2s ease;
}
.line-card:hover{border-color:var(--accent);background:#121214}
.line-card .lc-top{display:flex;flex-wrap:wrap;align-items:baseline;gap:14px;margin-bottom:14px}
.line-card .lc-name{font-size:clamp(24px,3.4vw,38px);font-weight:600;letter-spacing:-0.01em}
.line-card .lc-state{
  font-family:var(--mono);font-size:10px;letter-spacing:var(--ls-label);text-transform:uppercase;
  color:var(--accent);border:1px solid var(--accent);padding:3px 8px;
}
.line-card .lc-state.cold{color:var(--ink-muted);border-color:var(--hairline)}
.line-card .lc-line{font-size:clamp(14px,1.45vw,17px);line-height:1.6;color:var(--ink-muted);max-width:62ch}
.line-card .lc-line strong{color:var(--ink);font-weight:500}
.line-card .lc-figs{display:flex;flex-wrap:wrap;gap:26px 40px;margin-top:24px;padding-top:22px;border-top:1px solid var(--hairline)}
.line-card .lc-fig b{display:block;font-family:var(--mono);font-size:clamp(17px,2vw,22px);font-weight:500;color:var(--ink)}
.line-card .lc-fig span{display:block;font-family:var(--mono);font-size:10px;letter-spacing:var(--ls-label);
  text-transform:uppercase;color:var(--ink-muted);margin-top:5px}
.line-card .lc-go{margin-top:26px;font-family:var(--mono);font-size:11px;letter-spacing:var(--ls-label);
  text-transform:uppercase;color:var(--accent)}
.line-note{margin-top:30px;font-size:14px;line-height:1.65;color:var(--ink-muted);max-width:62ch}

/* ============ INLINE CTA STRIP ============ */
.strip{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px;
  border:1px solid var(--hairline);padding:clamp(20px,2.8vw,32px);background:var(--bg-alt);
}
.strip p{font-size:clamp(14px,1.4vw,16.5px);line-height:1.6;color:var(--ink-muted);max-width:60ch}
.strip p strong{color:var(--ink);font-weight:500}
.strip .btn{flex:0 0 auto}

/* ============ FAQ ============ */
.faq-list{margin-top:34px;border-top:1px solid var(--hairline)}
.faq-item{border-bottom:1px solid var(--hairline);padding:clamp(22px,3vw,30px) 0}
.faq-item h3{
  font-size:clamp(16px,1.75vw,20px);font-weight:600;line-height:1.35;
  letter-spacing:-0.01em;margin-bottom:12px;max-width:52ch;
}
.faq-item p{font-size:clamp(14px,1.4vw,16.5px);line-height:1.68;color:var(--ink-muted);max-width:70ch}
.faq-item p+p{margin-top:11px}
.faq-item strong{color:var(--ink);font-weight:500}
.faq-item a{border-bottom:1px solid var(--hairline)}
.faq-item a:hover{color:var(--accent);border-bottom-color:var(--accent)}

/* ============ GEOMETRY CALCULATOR ============ */
.calc{border:1px solid var(--hairline);background:var(--bg-alt);padding:clamp(22px,3.2vw,40px);margin-top:34px}
.calc .mode{display:flex;gap:0;margin-bottom:30px;border:1px solid var(--hairline);width:fit-content;max-width:100%;flex-wrap:wrap}
.calc .mode button{
  appearance:none;background:none;border:0;cursor:pointer;color:var(--ink-muted);
  font-family:var(--mono);font-size:11px;letter-spacing:var(--ls-label);text-transform:uppercase;
  padding:11px 18px;transition:color .18s ease,background .18s ease;
}
.calc .mode button[aria-pressed="true"]{color:var(--bg);background:var(--ink)}
.calc .fields{display:grid;gap:20px 28px;grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}
.calc .fields[hidden]{display:none}
.calc .f label{
  display:block;font-family:var(--mono);font-size:10.5px;letter-spacing:var(--ls-label);
  text-transform:uppercase;color:var(--ink-muted);margin-bottom:8px;
}
.calc .f input,.calc .f select{
  width:100%;background:var(--bg);color:var(--ink);border:1px solid var(--hairline);
  font-family:var(--mono);font-size:15px;padding:11px 13px;border-radius:0;
}
.calc .f input:focus,.calc .f select:focus{outline:none;border-color:var(--accent)}
.calc .f .hint{display:block;margin-top:7px;font-size:11.5px;line-height:1.45;color:var(--cold)}

.calc-out{margin-top:34px;padding-top:30px;border-top:1px solid var(--hairline)}
.calc-out .headline{display:flex;flex-wrap:wrap;align-items:baseline;gap:16px}
.calc-out .r{font-family:var(--mono);font-size:clamp(40px,8vw,76px);font-weight:500;line-height:1;color:var(--accent);letter-spacing:-0.02em}
.calc-out .r small{font-size:0.32em;letter-spacing:0;color:var(--ink)}
.calc-out .rlabel{font-family:var(--mono);font-size:11px;letter-spacing:var(--ls-label);
  text-transform:uppercase;color:var(--ink-muted);max-width:30ch;line-height:1.5}
.calc-sec{display:flex;flex-wrap:wrap;gap:26px 48px;margin-top:30px}
.calc-sec .s b{display:block;font-family:var(--mono);font-size:clamp(18px,2.2vw,25px);font-weight:500;color:var(--ink)}
.calc-sec .s span{display:block;font-family:var(--mono);font-size:10px;letter-spacing:var(--ls-label);
  text-transform:uppercase;color:var(--ink-muted);margin-top:6px;max-width:26ch;line-height:1.5}

table.px{width:100%;border-collapse:collapse;margin-top:30px;font-family:var(--mono);font-size:13px}
table.px caption{
  caption-side:top;text-align:left;font-family:var(--mono);font-size:10.5px;
  letter-spacing:var(--ls-label);text-transform:uppercase;color:var(--ink-muted);padding-bottom:12px;
}
table.px th,table.px td{text-align:left;padding:9px 14px 9px 0;border-bottom:1px solid var(--hairline)}
table.px th{font-weight:500;color:var(--ink-muted);font-size:10.5px;letter-spacing:var(--ls-label);text-transform:uppercase}
table.px td.below{color:var(--cold)}
table.px td.above{color:var(--ink)}

.calc-warn{
  margin-top:30px;border-left:1px solid var(--accent);padding:2px 0 2px 20px;
  font-size:14px;line-height:1.66;color:var(--ink-muted);max-width:74ch;
}
.calc-warn strong{color:var(--ink);font-weight:500}
.calc-math{margin-top:30px;font-family:var(--mono);font-size:13px;line-height:2;color:var(--ink-muted);
  border:1px solid var(--hairline);padding:20px 22px;overflow-x:auto;white-space:pre}
.calc-err{margin-top:22px;font-family:var(--mono);font-size:12.5px;color:var(--accent)}

/* ============ API BLOCK ============ */
.api-block{margin-top:30px;border:1px solid var(--hairline);padding:clamp(20px,2.6vw,30px)}
.api-block pre{font-family:var(--mono);font-size:12.5px;line-height:1.85;color:var(--ink-muted);
  overflow-x:auto;white-space:pre;margin-top:14px}
.api-block p{font-size:14px;line-height:1.65;color:var(--ink-muted);max-width:70ch}

@media (max-width:700px){
  .site-head .nav{gap:14px}
  .strip{flex-direction:column;align-items:flex-start}
  table.px{font-size:12px}
}

/* ---- cued lead ---- */
.cued-lead{border:1px solid var(--rule,rgba(255,255,255,.14));border-radius:10px;padding:1.5rem 1.6rem 1.4rem;margin:0 0 2rem}
.cued-tag{letter-spacing:.14em;text-transform:uppercase;margin:0 0 .5rem;opacity:.75}
.cued-head{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.1;margin:0 0 .6rem}
.cued-sub{max-width:56ch;margin:0 0 1.3rem;opacity:.85}
.cued-stats{display:flex;flex-wrap:wrap;gap:1.6rem 2.6rem;margin-bottom:1.1rem}
.cued-stats>div{flex:1 1 155px}
.cued-stats b{display:block;font-size:clamp(28px,3.4vw,40px);font-weight:700;line-height:1;letter-spacing:-.01em;margin-bottom:.4rem}
.cued-stats span{display:block;font-size:12px;line-height:1.5;letter-spacing:.04em;text-transform:uppercase;opacity:.62}
.cued-note{font-size:13.5px;line-height:1.6;max-width:64ch;opacity:.62;margin:0}
.pc-sub2{max-width:58ch;margin:.5rem 0 1.4rem;opacity:.8;font-size:15px;line-height:1.6}
/* ---- accordion (specs + faq) ---- */
.spec-acc{border-top:1px solid var(--rule,rgba(255,255,255,.14))}
.spec-acc:last-of-type{border-bottom:1px solid var(--rule,rgba(255,255,255,.14))}
.spec-acc>summary{list-style:none;cursor:pointer;padding:1.05rem 0;display:flex;align-items:center;justify-content:space-between;gap:1rem;font-size:12px;letter-spacing:.13em;text-transform:uppercase;opacity:.8}
.spec-acc>summary::-webkit-details-marker{display:none}
.spec-acc>summary::after{content:"";width:8px;height:8px;flex:none;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg) translateY(-2px);transition:transform .18s ease}
.spec-acc[open]>summary::after{transform:rotate(-135deg) translateY(-2px)}
.spec-acc>summary:hover{opacity:1}
.spec-acc-body{padding-bottom:1.3rem}
.faq-acc>summary{text-transform:none;letter-spacing:0;font-size:16px;font-weight:600;opacity:.92;padding:1.15rem 0;align-items:flex-start}
.faq-acc>summary>span{max-width:60ch}
.faq-acc>summary::after{margin-top:.35rem}
.faq-acc .spec-acc-body p{margin:0 0 .9rem;max-width:66ch;opacity:.82}
.faq-acc .spec-acc-body p:last-child{margin-bottom:0}
/* ---- cueing chain ---- */
.chain-wrap{margin-top:1.6rem;padding-top:1.4rem;border-top:1px solid var(--rule,rgba(255,255,255,.14))}
.chain-h{font-size:12px;letter-spacing:.13em;text-transform:uppercase;opacity:.7;margin:0 0 1rem}
.lb-bar.chain-a{background:currentColor;opacity:.28}
.lb-bar.chain-b{background:currentColor;opacity:.20}
.lb-bar.chain-us{background:#C2660A;opacity:1;min-width:5px}
@media (prefers-reduced-motion:reduce){.spec-acc>summary::after{transition:none}}