/* ZAMTEK WELLHEAD design system — shared across all pages. Source: homepage v2. */

/* ==========================================================
   ZAMTEK — "WELLHEAD" system · Fable v2
   Evolution of v1: same six inks, same three voices, same
   panel/paper rhythm and drain-trace signature — now carrying
   the mesh + AI-agents thesis, with motion layered on top of
   fully semantic content (progressive enhancement only).
   Palette
     --wellhead  #141414  petroleum green-black (dark ground)
     --gypsum    #F3F2F0  desert paper (light ground / dark-mode text)
     --beacon    #F00018  annunciator red (decoration only: borders, dots, svg strokes)
     --flare     #F00018  alarm / drain events only (decoration only)
     --beacon-text-d  #FF4D5E  text-safe red on dark ground (5.7:1 vs --wellhead)
     --beacon-text-p  #C80014  text-safe red on paper/white (5.4:1 vs --gypsum)
     --caspian   #5D5C5B  deep sea-green (paper-mode headings, tags)
     --ink       #141414  text on paper
   ========================================================== */
:root{
  --wellhead:#141414; --gypsum:#F3F2F0; --beacon:#F00018; --flare:#F00018;
  --caspian:#5D5C5B; --ink:#141414;
  --beacon-text-d:#FF4D5E; --beacon-text-p:#C80014;
  --line-d:rgba(243,242,240,.18); --line-d-strong:rgba(243,242,240,.34);
  --mut-d:rgba(243,242,240,.62);
  --line-p:rgba(20,20,20,.28); --line-p-strong:#141414;
  --mut-p:rgba(20,20,20,.66);
  --disp:'Barlow Condensed',Impact,sans-serif;
  --body:'IBM Plex Sans',system-ui,sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,monospace;
  --wrap:1240px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--wellhead);color:var(--gypsum);font-family:var(--body);
  font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:clip}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 28px}
.mono{font-family:var(--mono)}
::selection{background:var(--beacon);color:var(--ink)}
:focus-visible{outline:2px solid var(--beacon);outline-offset:3px;border-radius:0}
.skip{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0 0 0 0);white-space:nowrap;border:0}
.skip:focus{position:fixed;left:12px;top:12px;width:auto;height:auto;margin:0;clip:auto;
  overflow:visible;background:var(--beacon);color:var(--ink);padding:10px 16px;
  font-family:var(--mono);font-size:13px;z-index:999}

/* ---------- Motion: scroll reveal (JS adds .js to <html>; no-JS = fully visible) ---------- */
.js .rv{opacity:0;transform:translateY(16px);transition:opacity .6s cubic-bezier(.3,.6,.2,1),transform .6s cubic-bezier(.3,.6,.2,1)}
.js .rv.in{opacity:1;transform:none}
.js .rv.d1{transition-delay:.08s}.js .rv.d2{transition-delay:.16s}.js .rv.d3{transition-delay:.24s}
@media (prefers-reduced-motion:reduce){
  .js .rv{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* ---------- Buttons: flat, square, printed ---------- */
.btn{display:inline-flex;align-items:center;gap:10px;font-family:var(--mono);
  font-weight:600;font-size:13px;letter-spacing:.06em;text-transform:uppercase;
  padding:14px 22px;border:1.5px solid transparent;transition:background .15s,color .15s,border-color .15s;cursor:pointer}
.btn-beacon{background:var(--beacon-text-p);color:var(--gypsum);border-color:var(--beacon-text-p)}
.btn-beacon:hover{background:var(--gypsum);border-color:var(--gypsum);color:var(--ink)}
.btn-line{border-color:var(--line-d-strong);color:var(--gypsum)}
.btn-line:hover{border-color:var(--beacon);color:var(--beacon-text-d)}
.btn-ink{background:var(--ink);color:var(--gypsum);border-color:var(--ink)}
.btn-ink:hover{background:var(--caspian);border-color:var(--caspian)}
.btn-pline{border-color:var(--line-p-strong);color:var(--ink)}
.btn-pline:hover{border-color:var(--flare);color:var(--beacon-text-p)}

/* ---------- Nav ---------- */
header.nav{position:sticky;top:0;z-index:60;background:rgba(15,21,18,.92);
  backdrop-filter:blur(8px);border-bottom:1.5px solid var(--line-d-strong)}
.nav-inner{display:flex;align-items:stretch;height:62px}
.brand{display:flex;align-items:center;gap:12px;padding-right:26px;border-right:1.5px solid var(--line-d);
  font-family:var(--disp);font-weight:700;font-size:26px;letter-spacing:.08em}
.brand .fzc{font-family:var(--mono);font-weight:400;font-size:10.5px;letter-spacing:.18em;
  color:var(--mut-d);line-height:1.35;text-transform:uppercase}
.brand .dot{width:9px;height:9px;background:var(--beacon)}
.nav-links{display:flex;align-items:center;gap:0;margin-left:6px;flex:1}
.nav-links a{font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--mut-d);padding:8px 12px;border-bottom:2px solid transparent;transition:color .15s,border-color .15s}
.nav-links a:hover{color:var(--gypsum);border-bottom-color:var(--beacon)}
.nav-cta{display:flex;align-items:center;margin-left:auto}
/* markup-only mobile menu (no polling scripts, ever again) */
.mnav{display:none;position:relative;margin-left:auto;align-self:center}
.mnav summary{list-style:none;cursor:pointer;font-family:var(--mono);font-size:12px;
  letter-spacing:.14em;text-transform:uppercase;padding:12px 14px;border:1.5px solid var(--line-d-strong)}
.mnav summary::-webkit-details-marker{display:none}
.mnav[open] summary{background:var(--beacon);color:var(--ink);border-color:var(--beacon)}
.mnav .mm{position:absolute;right:0;top:calc(100% + 10px);min-width:230px;background:var(--wellhead);
  border:1.5px solid var(--line-d-strong);display:flex;flex-direction:column;z-index:70}
.mnav .mm a{font-family:var(--mono);font-size:13px;letter-spacing:.1em;text-transform:uppercase;
  padding:13px 18px;border-bottom:1px solid var(--line-d)}
.mnav .mm a:last-child{border-bottom:none}
.mnav .mm a:hover{color:var(--beacon-text-d)}
@media(max-width:1020px){.nav-links{display:none}.nav-cta{display:none}.mnav{display:block}}

/* ---------- Title block (engineering drawing header) ---------- */
.tblock{display:grid;grid-template-columns:auto 1fr auto;border:1.5px solid var(--line-d-strong);margin-bottom:44px}
.tblock>*{padding:14px 20px}
.tblock .tb-no{font-family:var(--mono);font-size:12px;letter-spacing:.14em;color:var(--beacon-text-d);
  border-right:1.5px solid var(--line-d-strong);display:flex;align-items:center}
.tblock h2{font-family:var(--disp);font-weight:600;font-size:clamp(26px,3.4vw,40px);
  letter-spacing:.03em;text-transform:uppercase;line-height:1}
.tblock .tb-meta{font-family:var(--mono);font-size:11px;letter-spacing:.12em;color:var(--mut-d);
  text-transform:uppercase;border-left:1.5px solid var(--line-d-strong);display:flex;align-items:center;text-align:right}
@media(max-width:680px){.tblock{grid-template-columns:1fr}.tblock .tb-meta{display:none}
  .tblock .tb-no{border-right:none;border-bottom:1.5px solid var(--line-d-strong);padding:10px 16px}
  .paper .tblock .tb-no{border-bottom-color:var(--line-p-strong)}
  .tblock h2{font-size:24px;line-height:1.12}.tblock>*{padding:12px 16px}}
.paper .tblock{border-color:var(--line-p-strong)}
.paper .tblock .tb-no{border-right-color:var(--line-p-strong);color:var(--beacon-text-p)}
.paper .tblock .tb-meta{border-left-color:var(--line-p-strong);color:var(--mut-p)}

/* ---------- Sections / grounds ---------- */
section{padding:88px 0}
.paper{background:var(--gypsum);color:var(--ink)}
.paper ::selection{background:var(--caspian);color:var(--gypsum)}
.sec-lead{max-width:64ch;color:var(--mut-d);margin-bottom:46px;font-size:17px}
.sec-lead strong{color:var(--gypsum)}
.paper .sec-lead{color:var(--mut-p)}
.paper .sec-lead strong{color:var(--ink)}

/* ---------- Hero ---------- */
.hero{padding:64px 0 0;position:relative}
.hero .eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--mut-d);display:flex;flex-wrap:wrap;gap:10px 26px;margin-bottom:30px}
.hero .eyebrow b{color:var(--beacon-text-d);font-weight:500}
h1{font-family:var(--disp);font-weight:700;text-transform:uppercase;
  font-size:clamp(50px,8.6vw,120px);line-height:.92;letter-spacing:.005em;max-width:1080px}
h1 .amber{color:var(--beacon-text-d)}
.hero .lead{max-width:62ch;margin-top:28px;font-size:clamp(16px,1.6vw,19px);color:var(--mut-d)}
.hero .lead strong{color:var(--gypsum);font-weight:600}
.hero .lead .lic{display:block;margin-top:14px;font-size:14px}

/* second hero — the ecosystem statement, a sibling of h1 */
#ecosystem{padding-top:clamp(56px,7vw,104px);padding-bottom:clamp(44px,5vw,72px)}
.eco-hero{font-family:var(--disp);text-transform:uppercase;font-weight:700;
  font-size:clamp(33px,5.2vw,72px);line-height:.97;letter-spacing:.005em;
  text-align:center;max-width:1120px;margin:0 auto;color:var(--ink);text-wrap:balance}
.eco-hero .eco-red{color:var(--beacon-text-p)}
.eco-hero .eco-kick{display:block;margin:clamp(20px,2.6vw,32px) auto 0;max-width:640px;
  font-family:var(--body);text-transform:none;font-weight:400;letter-spacing:0;
  font-size:clamp(15px,1.5vw,19px);line-height:1.5;color:var(--mut-p)}
.eco-hero .eco-kick strong{color:var(--ink);font-weight:600}
[dir=rtl] .eco-hero{letter-spacing:0}

/* two doors — the business split, made structural */
.doors{display:grid;grid-template-columns:1fr 1fr;border:1.5px solid var(--line-d-strong);margin-top:46px}
.door{padding:26px 28px 24px;position:relative;transition:background .15s}
.door+.door{border-left:1.5px solid var(--line-d-strong)}
.door .k{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--beacon-text-d)}
.door h3{font-family:var(--disp);font-weight:600;font-size:clamp(24px,2.6vw,34px);
  text-transform:uppercase;letter-spacing:.02em;margin:10px 0 8px;line-height:1}
.door p{font-size:16px;color:var(--mut-d);max-width:40ch}
.door .go{font-family:var(--mono);font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--gypsum);margin-top:16px;display:inline-block}
.door:hover{background:rgba(255,176,0,.07)}
.door:hover .go{color:var(--beacon-text-d)}
@media(max-width:760px){.doors{grid-template-columns:1fr}.door+.door{border-left:none;border-top:1.5px solid var(--line-d-strong)}}

/* ---------- Signature: the drain trace ---------- */
.trace{margin-top:64px;border-top:1.5px solid var(--line-d-strong);border-bottom:1.5px solid var(--line-d-strong);
  background:rgba(243,242,240,.025)}
.trace-head{display:flex;flex-wrap:wrap;gap:8px 28px;justify-content:space-between;
  font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--mut-d);padding:12px 28px;border-bottom:1px solid var(--line-d)}
.trace-head .live{color:var(--beacon-text-d)}
.trace-head .live::before{content:"";display:inline-block;width:8px;height:8px;background:var(--beacon);
  margin-right:8px;animation:blink 2.4s steps(2,start) infinite}
@keyframes blink{50%{opacity:.25}}
.trace svg{width:100%;height:auto}
.trace .t-grid{stroke:rgba(243,242,240,.10);stroke-width:1}
.trace .t-axis{font-family:'IBM Plex Mono',monospace;font-size:13px;fill:rgba(243,242,240,.5);letter-spacing:.06em}
.trace .t-lab{font-family:'IBM Plex Mono',monospace;font-size:13px;letter-spacing:.04em}
.trace .t-line{fill:none;stroke:var(--gypsum);stroke-width:2;
  stroke-dasharray:1;stroke-dashoffset:1;animation:draw 2.8s .3s cubic-bezier(.5,0,.2,1) forwards}
.trace .t-drain{fill:none;stroke:var(--flare);stroke-width:3;
  stroke-dasharray:1;stroke-dashoffset:1;animation:draw .5s 1.5s linear forwards}
.trace .t-refuel{fill:none;stroke:var(--beacon);stroke-width:3;
  stroke-dasharray:1;stroke-dashoffset:1;animation:draw .5s 2.3s linear forwards}
@keyframes draw{to{stroke-dashoffset:0}}
.trace .t-flag{opacity:0;animation:appear .4s 2.1s forwards}
.trace .t-flag2{opacity:0;animation:appear .4s 2.9s forwards}
@keyframes appear{to{opacity:1}}
@media (prefers-reduced-motion:reduce){
  .trace .t-line,.trace .t-drain,.trace .t-refuel{animation:none;stroke-dashoffset:0}
  .trace .t-flag,.trace .t-flag2{animation:none;opacity:1}
  .trace-head .live::before{animation:none}
}

/* ---------- SEC 02 · Method: the loop, now flowing ---------- */
.loop{display:grid;grid-template-columns:1fr 44px 1fr 44px 1fr;align-items:stretch}
.node{border:1.5px solid var(--line-d-strong);padding:24px 24px 20px;background:var(--wellhead);position:relative}
.node .id{font-family:var(--mono);font-size:11px;letter-spacing:.16em;color:var(--beacon-text-d)}
.node h3{font-family:var(--disp);font-weight:600;font-size:32px;letter-spacing:.05em;
  text-transform:uppercase;margin:8px 0 4px;line-height:1}
.node .role{font-family:var(--mono);font-size:11.5px;letter-spacing:.06em;color:var(--mut-d);
  text-transform:uppercase;display:block;margin-bottom:12px;padding-bottom:12px;border-bottom:1px solid var(--line-d)}
.node p{font-size:16px;color:var(--mut-d)}
.node.act{border-color:var(--beacon)}
.node.act .id{color:var(--beacon-text-d)}
.pipe{position:relative}
/* the signal flows: animated dash stream along each pipe */
.pipe::before{content:"";position:absolute;top:50%;left:0;right:0;height:2px;margin-top:-1px;
  background:repeating-linear-gradient(90deg,var(--beacon) 0 7px,rgba(243,242,240,.16) 7px 16px)}
.js .pipe::before{animation:flowx 1.1s linear infinite}
@keyframes flowx{to{background-position:16px 0}}
.pipe::after{content:"";position:absolute;top:50%;right:-1px;width:9px;height:9px;
  border-top:1.5px solid var(--beacon);border-right:1.5px solid var(--beacon);
  transform:translateY(-50%) rotate(45deg)}
.loop-return{height:64px;margin:0 calc(16.6% - 22px);border:1.5px dashed var(--line-d);border-top:none;position:relative}
.loop-return::after{content:"";position:absolute;left:-5px;top:-7px;width:9px;height:9px;
  border-left:1.5px solid var(--line-d);border-top:1.5px solid var(--line-d);transform:rotate(45deg)}
.loop-return .cap{position:absolute;left:50%;bottom:-9px;transform:translateX(-50%);
  background:var(--wellhead);padding:0 16px;font-family:var(--mono);font-size:11px;
  letter-spacing:.2em;color:var(--beacon-text-d);text-transform:uppercase;white-space:nowrap}
.loop-foot{margin-top:64px;font-family:var(--mono);font-size:12.5px;letter-spacing:.06em;
  color:var(--mut-d);text-transform:uppercase;max-width:72ch}
.loop-foot b{color:var(--beacon-text-d);font-weight:500}
@media(max-width:860px){
  .loop{grid-template-columns:1fr}
  .pipe{height:40px}
  .pipe::before{left:50%;right:auto;top:0;bottom:0;width:2px;height:auto;margin:0 0 0 -1px;
    background:repeating-linear-gradient(180deg,var(--beacon) 0 7px,rgba(243,242,240,.16) 7px 16px)}
  .js .pipe::before{animation:flowy 1.1s linear infinite}
  .pipe::after{right:auto;left:50%;top:auto;bottom:-1px;transform:translateX(-50%) rotate(135deg)}
  .loop-return{margin:0;height:auto;min-height:52px;border:none;border-left:1.5px dashed var(--line-d)}
  .loop-return::after{display:none}
  .loop-return .cap{position:static;display:block;transform:none;white-space:normal;
    padding:16px 0 0 16px;max-width:100%}
}
@keyframes flowy{to{background-position:0 16px}}
@media (prefers-reduced-motion:reduce){.js .pipe::before{animation:none}}

/* ---------- SEC 03 · Proof (paper · field log) ---------- */
.statrow{display:grid;grid-template-columns:repeat(4,1fr);border:1.5px solid var(--line-p-strong);margin-bottom:46px}
.stat{padding:22px 24px 18px}
.stat+.stat{border-left:1.5px solid var(--line-p-strong)}
.stat .n{font-family:var(--disp);font-weight:700;font-size:clamp(38px,4.6vw,60px);line-height:1;color:var(--caspian)}
.stat .n .u{font-size:.55em;letter-spacing:.02em}
.stat .l{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--mut-p);margin-top:8px;display:block}
@media(max-width:860px){.statrow{grid-template-columns:1fr 1fr}
  .stat:nth-child(3){border-left:none}.stat:nth-child(n+3){border-top:1.5px solid var(--line-p-strong)}}
.cases{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1.5px solid var(--line-p-strong)}
.case{padding:26px 28px 24px;border-bottom:1.5px solid var(--line-p-strong)}
.case:nth-child(odd){border-right:1.5px solid var(--line-p-strong)}
.case:nth-last-child(-n+2){border-bottom:none}
.case-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px;margin-bottom:8px}
.case h3{font-family:var(--disp);font-weight:700;font-size:30px;letter-spacing:.03em;text-transform:uppercase;line-height:1;color:var(--caspian)}
.case .tag{font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--gypsum);background:var(--caspian);padding:4px 9px;white-space:nowrap}
.case .tag.hot{background:var(--flare)}
.case .sub{font-family:var(--mono);font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--mut-p);display:block;margin-bottom:12px}
.case p{font-size:16px;color:var(--mut-p)}
.case p b{color:var(--ink)}
@media(max-width:860px){.cases{grid-template-columns:1fr}
  .case:nth-child(odd){border-right:none}
  .case:nth-last-child(2){border-bottom:1.5px solid var(--line-p-strong)}}
.deals{margin-top:46px;border:1.5px solid var(--line-p-strong)}
.deals-head{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--gypsum);background:var(--ink);padding:10px 18px}
.deal{display:grid;grid-template-columns:minmax(150px,220px) 1fr auto;gap:8px 20px;
  padding:12px 18px;border-top:1px solid var(--line-p);font-family:var(--mono);font-size:13.5px;letter-spacing:.02em}
.deal:first-of-type{border-top:none}
.deal .who{color:var(--ink);font-weight:600;text-transform:uppercase;letter-spacing:.08em}
.deal .what{color:var(--mut-p)}
.deal .flag{color:var(--caspian);font-weight:600;text-transform:uppercase;letter-spacing:.1em;text-align:right}
.deal .flag.live{color:var(--beacon-text-p)}
.deal.quiet .who,.deal.quiet .what,.deal.quiet .flag{color:var(--mut-p);font-weight:400}
@media(max-width:760px){.deal{grid-template-columns:1fr}.deal .flag{text-align:left}}

/* ---------- SEC 04 · The stack (dark) ---------- */
.stack{border:1.5px solid var(--line-d-strong);position:relative}
.srow{display:grid;grid-template-columns:132px 190px 1fr;border-top:1.5px solid var(--line-d)}
.srow:first-child{border-top:none}
.srow .alt{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--beacon-text-d);padding:20px;border-right:1.5px solid var(--line-d);display:flex;align-items:flex-start}
.srow .lname{font-family:var(--disp);font-weight:600;font-size:30px;letter-spacing:.04em;text-transform:uppercase;
  line-height:1;padding:16px 20px;border-right:1.5px solid var(--line-d)}
.srow .ldesc{padding:18px 22px}
.srow .ldesc p{font-size:16px;color:var(--mut-d);margin-bottom:10px;max-width:70ch}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{font-family:var(--mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--mut-d);border:1px solid var(--line-d-strong);padding:4px 9px;white-space:nowrap}
.chip.hot{color:var(--ink);background:var(--beacon);border-color:var(--beacon)}
@media(max-width:860px){.srow{grid-template-columns:1fr}
  .srow .alt{border-right:none;padding:16px 18px 0}
  .srow .lname{border-right:none;padding:6px 18px 4px}
  .srow .ldesc{padding:6px 18px 18px}}
/* Velavu spine + AI crown */
.pane{border:1.5px solid var(--beacon);margin-top:34px;display:grid;grid-template-columns:1fr 1fr}
.pane>div{padding:26px 28px 24px}
.pane>div+div{border-left:1.5px solid var(--line-d-strong)}
.pane .k{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--beacon-text-d)}
.pane h3{font-family:var(--disp);font-weight:600;font-size:clamp(24px,2.6vw,34px);text-transform:uppercase;
  letter-spacing:.02em;margin:10px 0 8px;line-height:1}
.pane p{font-size:16px;color:var(--mut-d);max-width:52ch}
.pane p b{color:var(--gypsum)}
.pane ul{list-style:none;margin-top:12px}
.pane li{font-family:var(--mono);font-size:13.5px;letter-spacing:.04em;color:var(--mut-d);
  padding:7px 0 7px 18px;border-top:1px solid var(--line-d);position:relative}
.pane li::before{content:"▸";position:absolute;left:0;color:var(--beacon-text-d)}
@media(max-width:860px){.pane{grid-template-columns:1fr}
  .pane>div+div{border-left:none;border-top:1.5px solid var(--line-d-strong)}}

/* ---------- SEC 05 · Store (paper · datasheet grid) ---------- */
.dgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1.5px solid var(--line-p-strong)}
.dcard{padding:26px 26px 22px;display:flex;flex-direction:column;border-bottom:1.5px solid var(--line-p-strong)}
.dcard:not(:nth-child(3n+1)){border-left:1.5px solid var(--line-p-strong)}
.dcard:nth-last-child(-n+3){border-bottom:none}
.dcard-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px;
  padding-bottom:14px;margin-bottom:14px;border-bottom:1.5px solid var(--line-p-strong)}
.dcard .model{font-family:var(--disp);font-weight:700;font-size:34px;letter-spacing:.03em;
  line-height:1;color:var(--caspian);text-transform:uppercase}
.dcard .tag{font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--gypsum);background:var(--caspian);padding:4px 9px;white-space:nowrap}
.dcard .tag.hot{background:var(--flare)}
.dcard h3{font-size:16.5px;font-weight:600;margin-bottom:6px}
.dcard>p{font-size:16px;color:var(--mut-p);margin-bottom:18px}
.specs{width:100%;border-collapse:collapse;font-family:var(--mono);font-size:13.5px;margin-top:auto}
.specs td{padding:8px 0;border-top:1px solid var(--line-p);vertical-align:top}
.specs td:first-child{color:var(--mut-p);letter-spacing:.1em;text-transform:uppercase;padding-right:14px;white-space:nowrap}
.specs td:last-child{text-align:right;color:var(--ink);font-weight:500}
.stamp{align-self:flex-start;margin-top:18px;font-family:var(--mono);font-size:12px;letter-spacing:.16em;
  color:var(--beacon-text-p);border:1.5px solid var(--flare);padding:5px 10px;text-transform:uppercase;transform:rotate(-1.5deg)}
@media(max-width:1000px){.dgrid{grid-template-columns:1fr 1fr}
  .dcard:not(:nth-child(3n+1)){border-left:none}
  .dcard:nth-child(even){border-left:1.5px solid var(--line-p-strong)}
  .dcard:nth-last-child(-n+3){border-bottom:1.5px solid var(--line-p-strong)}
  .dcard:nth-last-child(-n+2){border-bottom:none}}
@media(max-width:640px){.dgrid{grid-template-columns:1fr}
  .dcard:nth-child(even){border-left:none}
  .dcard{border-bottom:1.5px solid var(--line-p-strong)}
  .dcard:last-child{border-bottom:none}}
.paper-cta{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-top:40px}
.paper-note{font-family:var(--mono);font-size:11.5px;color:var(--mut-p);letter-spacing:.04em;max-width:66ch}

/* ---------- SEC 06 · Sector bundles (dark) ---------- */
.bundles{display:grid;grid-template-columns:repeat(3,1fr);border:1.5px solid var(--line-d-strong)}
.bundle{padding:26px 26px 24px;display:flex;flex-direction:column}
.bundle+.bundle{border-left:1.5px solid var(--line-d-strong)}
.bundle .k{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--beacon-text-d)}
.bundle h3{font-family:var(--disp);font-weight:600;font-size:clamp(26px,2.6vw,34px);text-transform:uppercase;
  letter-spacing:.02em;margin:10px 0 6px;line-height:1}
.bundle .out{font-size:14.5px;color:var(--mut-d);margin-bottom:16px}
.bundle .out b{color:var(--gypsum)}
.bundle ul{list-style:none;margin-top:auto}
.bundle li{font-family:var(--mono);font-size:13.5px;letter-spacing:.05em;text-transform:uppercase;
  color:var(--mut-d);padding:8px 0 8px 18px;border-top:1px solid var(--line-d);position:relative}
.bundle li::before{content:"+";position:absolute;left:0;color:var(--beacon-text-d)}
.bundle .go{font-family:var(--mono);font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--gypsum);margin-top:18px;display:inline-block}
.bundle .go:hover{color:var(--beacon-text-d)}
@media(max-width:960px){.bundles{grid-template-columns:1fr}
  .bundle+.bundle{border-left:none;border-top:1.5px solid var(--line-d-strong)}}
.quiet-line{margin-top:26px;font-family:var(--mono);font-size:11.5px;letter-spacing:.1em;
  text-transform:uppercase;color:var(--mut-d)}
.quiet-line a{border-bottom:1px solid var(--line-d-strong)}
.quiet-line a:hover{color:var(--beacon-text-d);border-bottom-color:var(--beacon)}

/* corridor coverage strip */
.corridor{margin-top:64px;border:1.5px solid var(--line-d-strong)}
.corridor-head{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--mut-d);padding:10px 18px;border-bottom:1px solid var(--line-d)}
.corridor-head b{color:var(--beacon-text-d);font-weight:500}
.route{display:flex;align-items:center;gap:0;padding:26px 18px;overflow-x:auto}
.stop{font-family:var(--mono);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--gypsum);white-space:nowrap;position:relative;padding-top:16px}
.stop::before{content:"";position:absolute;top:0;left:50%;margin-left:-4px;width:8px;height:8px;
  background:var(--beacon)}
.stop.hq::before{background:var(--flare)}
.stop small{display:block;color:var(--mut-d);font-size:10px;letter-spacing:.14em}
.leg{flex:1;min-width:40px;height:2px;margin:0 10px;position:relative;top:-9px;
  background:repeating-linear-gradient(90deg,var(--beacon) 0 6px,rgba(243,242,240,.14) 6px 14px)}
.js .leg{animation:flowx 1.4s linear infinite}
@media (prefers-reduced-motion:reduce){.js .leg{animation:none}}

/* ---------- SEC 07 · FAQ (paper) ---------- */
.faq{border:1.5px solid var(--line-p-strong)}
.faq details{border-top:1.5px solid var(--line-p-strong)}
.faq details:first-child{border-top:none}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:20px;
  align-items:baseline;padding:18px 22px;font-family:var(--disp);font-weight:600;font-size:22px;
  letter-spacing:.02em;text-transform:uppercase;line-height:1.1}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:var(--mono);font-size:18px;color:var(--beacon-text-p);flex:none}
.faq details[open] summary::after{content:"−"}
.faq details[open] summary{color:var(--caspian)}
.faq .a{padding:0 22px 20px;max-width:78ch;font-size:16px;color:var(--mut-p)}
.faq .a b{color:var(--ink)}

/* ---------- SEC 08 · Contact (dark) ---------- */
.contact h2.big{font-family:var(--disp);font-weight:700;font-size:clamp(44px,7vw,96px);
  text-transform:uppercase;line-height:.92;letter-spacing:.005em;max-width:14ch}
.contact h2.big .amber{color:var(--beacon-text-d)}
.contact .cta-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px}
.contact .meta{margin-top:44px;display:grid;grid-template-columns:1fr 1fr;gap:24px 40px;
  border-top:1.5px solid var(--line-d);padding-top:28px}
.contact .meta h4{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--beacon-text-d);margin-bottom:8px;font-weight:500}
.contact .meta p{font-size:14px;color:var(--mut-d);max-width:56ch}
.contact .meta a{border-bottom:1px solid var(--line-d-strong)}
.contact .meta a:hover{color:var(--beacon-text-d);border-bottom-color:var(--beacon)}
@media(max-width:760px){.contact .meta{grid-template-columns:1fr}}

/* ---------- Footer ---------- */
footer{border-top:1.5px solid var(--line-d-strong);padding:34px 0 40px}
.foot{display:flex;flex-wrap:wrap;gap:14px 40px;justify-content:space-between;
  font-family:var(--mono);font-size:12px;letter-spacing:.08em;color:var(--mut-d);text-transform:uppercase}
.foot a:hover{color:var(--beacon-text-d)}
.foot .loopmark{color:var(--beacon-text-d)}
.lic-line{margin-top:20px;font-family:var(--mono);font-size:10.5px;letter-spacing:.06em;
  color:var(--mut-d);max-width:100%;line-height:1.8;text-transform:uppercase}

/* light-section fixes: dark .door component + chips readable on .paper */
.paper .cap{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--mut-p)}
.paper .chips{display:flex;flex-wrap:wrap;gap:8px}
.paper .chip{font-family:var(--mono);font-size:12px;letter-spacing:.04em;padding:6px 12px;border:1px solid var(--line-p-strong);border-radius:2px;color:var(--ink)}
.paper .door .go{color:var(--beacon-text-p)}
.paper .door .k{color:var(--beacon-text-p)}
.paper .door p{color:var(--mut-p)}
.paper .door+.door{border-color:var(--line-p-strong)}
.paper .doors{border-color:var(--line-p-strong)}

/* hero animated cycle flow (sensor -> invoice, loops) */
.hero-flow{margin:40px auto 2px;max-width:1040px}
.hero-flow svg{width:100%;height:auto;display:block;overflow:visible}
.hero-flow .zk-flab{font-family:var(--mono);font-size:13px;letter-spacing:.16em;fill:var(--gypsum)}
.hero-flow .zk-fcap{font-family:var(--mono);font-size:11px;letter-spacing:.06em;fill:var(--mut-d)}
.hero-flow-cap{font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--mut-d);margin-top:10px;text-transform:uppercase}
#sense-live{padding:56px 0;background:var(--wellhead)}

/* ============ 2026-07-27 compact homepage redesign ============ */
/* tighten section rhythm */
.paper{padding-top:clamp(46px,5.2vw,74px);padding-bottom:clamp(46px,5.2vw,74px)}
/* hero strapline (replaces the 2nd giant header) */
.hero-strap{text-align:center;max-width:900px;margin:34px auto 0;font-family:var(--body);
  font-size:clamp(16px,1.7vw,21px);line-height:1.5;color:var(--mut-d);letter-spacing:-.01em}
.hero-strap strong{color:var(--beacon-text-d);font-weight:600}
/* compact 4-step method row */
.cyc{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:34px}
.cyc-step{position:relative;border:1px solid var(--line-d);border-radius:3px;padding:20px 18px 22px;
  background:rgba(20,20,20,.015);transition:transform .18s,border-color .18s,box-shadow .18s;overflow:hidden}
.cyc-step::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--flare);
  transform:scaleX(0);transform-origin:left;transition:transform .28s}
.cyc-step:hover{transform:translateY(-4px);border-color:var(--flare);box-shadow:0 14px 30px rgba(0,0,0,.10)}
.cyc-step:hover::before{transform:scaleX(1)}
.cyc-k{display:block;font-family:var(--mono);font-size:12px;letter-spacing:.16em;color:var(--beacon-text-p);
  margin-bottom:10px}
.cyc-step p{font-family:var(--body);font-size:16px;line-height:1.5;color:var(--mut-p);margin:0}
.cyc-step .go{margin-top:10px;font-size:12px}
.cyc-note{text-align:center;margin-top:20px;margin-inline:auto;font-family:var(--body);font-size:16px;color:var(--mut-p);max-width:66ch}
.cyc-note strong{color:var(--ink)}
@media(max-width:820px){.cyc{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.cyc{grid-template-columns:1fr}}
/* compact price table (the estimator) */
.ptable{margin-top:26px;border:1px solid var(--line-d);border-radius:4px;overflow:hidden}
.prow{display:grid;grid-template-columns:minmax(150px,1fr) 2.2fr minmax(140px,auto);gap:16px;
  align-items:center;padding:15px 20px;border-top:1px solid var(--line-d);transition:background .15s}
.prow:first-child{border-top:0}
.prow:hover{background:rgba(240,0,24,.04)}
.prow .pname{font-family:var(--disp);text-transform:uppercase;font-weight:600;font-size:18px;
  letter-spacing:.01em;color:var(--ink)}
.prow .pwhat{font-family:var(--body);font-size:15px;line-height:1.45;color:var(--mut-p)}
.prow .pfrom{font-family:var(--mono);font-size:13px;font-weight:600;color:var(--beacon-text-p);white-space:nowrap;text-align:right}
.prow .pfrom span{display:block;color:var(--mut-p);font-weight:400;font-size:11px}
@media(max-width:720px){.prow{grid-template-columns:1fr auto;gap:6px 14px}.prow .pwhat{grid-column:1/-1;order:3}.prow .pfrom{text-align:right}}
/* compact proof grid */
.pgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:26px}
.pitem{border:1px solid var(--line-d);border-radius:3px;padding:18px;transition:transform .18s,border-color .18s}
.pitem:hover{transform:translateY(-3px);border-color:var(--mut-p)}
.pitem .tag{display:inline-block;font-family:var(--mono);font-size:12px;letter-spacing:.1em;
  color:var(--beacon-text-p);margin-bottom:8px}
.pitem p{font-family:var(--body);font-size:15px;line-height:1.45;color:var(--mut-p);margin:0}
@media(max-width:820px){.pgrid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.pgrid{grid-template-columns:1fr}}
/* slim demote band (store) */
.band{text-align:center;font-family:var(--body);font-size:16px;color:var(--mut-p);margin:0 auto;max-width:66ch}
.band strong{color:var(--ink)}
/* subtle hover lift on remaining card types */
.dcard,.door,.case{transition:transform .18s,border-color .18s,box-shadow .18s}
.dcard:hover,.case:hover{transform:translateY(-3px);box-shadow:0 12px 26px rgba(0,0,0,.08)}

/* ============ 2026-07-27 category-tile homepage (v3) ============ */
.catgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:38px}
@media(max-width:900px){.catgrid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.catgrid{grid-template-columns:1fr}}
.cat{display:flex;flex-direction:column;border:1px solid var(--line-p);border-radius:4px;
  padding:26px 24px 22px;background:#fff;transition:transform .18s,border-color .18s,box-shadow .18s;min-height:230px}
.cat:hover{transform:translateY(-5px);border-color:var(--flare);box-shadow:0 16px 34px rgba(0,0,0,.10)}
.cat-k{font-family:var(--mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--beacon-text-p);margin-bottom:14px}
.cat h3{font-family:var(--disp);text-transform:uppercase;font-weight:700;font-size:26px;line-height:1;
  letter-spacing:.01em;color:var(--ink);margin-bottom:12px}
.cat p{font-family:var(--body);font-size:16px;line-height:1.5;color:var(--mut-p);margin:0 0 18px}
.cat .cat-foot{margin-top:auto;display:flex;align-items:baseline;justify-content:space-between;gap:10px;
  padding-top:16px;border-top:1px solid var(--line-p)}
.cat .cat-price{font-family:var(--mono);font-size:13px;font-weight:600;color:var(--ink)}
.cat .cat-price span{color:var(--mut-p);font-weight:400}
.cat .cat-go{font-family:var(--mono);font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--beacon-text-p)}
.cat:hover .cat-go{text-decoration:underline}

/* ============ 2026-08-23 product-grid + how-to-buy ============ */
.cat-btns{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.cat-btns .btn{padding:12px 16px;font-size:11.5px}
.hero .cta-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:34px}
.step{border:1.5px solid var(--line-p-strong);border-radius:4px;padding:24px;background:#fff}
.step-no{font-family:var(--mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--beacon-text-p);display:block;margin-bottom:10px}
.step h3{font-family:var(--disp);text-transform:uppercase;font-weight:700;font-size:22px;line-height:1;color:var(--ink);margin-bottom:10px}
.step p{font-family:var(--body);font-size:16px;line-height:1.5;color:var(--mut-p);margin:0}
@media(max-width:760px){.steps{grid-template-columns:1fr}}
@media(max-width:420px){.cat-btns .btn{width:100%;justify-content:center}}
