/* ==========================================================================
   PulseVolt™ — Industrial Resilience Infrastructure
   Design system & site styles
   ========================================================================== */

/* ---------- 1. Tokens ---------- */
:root{
  --ink:#08080A;
  --ink-2:#0D0D10;
  --surface:#131317;
  --surface-2:#191920;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.20);

  --amber:#F5C842;
  --amber-soft:#FFDD74;
  --amber-deep:#C99B18;

  --text:#F4F4F6;
  --text-2:#A9AAB4;
  --text-3:#8A8B95;

  --ok:#4ADE80;
  --warn:#F5C842;
  --bad:#F0603F;

  --font-display:"Archivo","Helvetica Neue",Helvetica,Arial,sans-serif;
  --font-body:"Inter","Helvetica Neue",Helvetica,Arial,sans-serif;

  --maxw:1280px;
  --gut:clamp(20px,5vw,64px);
  --nav-h:76px;

  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;

  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink);
  color:var(--text);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.62;
  font-weight:400;
  letter-spacing:-.005em;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img,svg,video{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:800;letter-spacing:-.032em;line-height:1.03;margin:0}
p{margin:0}
::selection{background:var(--amber);color:#12100A}

/* ---------- 3. Layout ---------- */
.wrap{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gut)}
.section{padding-block:clamp(76px,10vw,148px);position:relative}
.section--tight{padding-block:clamp(56px,7vw,96px)}
.section--dark{background:var(--ink-2)}
.section--panel{background:linear-gradient(180deg,#0B0B0E 0%,#111116 100%)}
.grid{display:grid;gap:clamp(18px,2.4vw,32px)}
.g-2{grid-template-columns:repeat(2,1fr)}
.g-3{grid-template-columns:repeat(3,1fr)}
.g-4{grid-template-columns:repeat(4,1fr)}
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(32px,6vw,88px);align-items:center}
.split--stretch{align-items:stretch}
.split--stretch .figure{min-height:100%}
.split--stretch .figure--tall{aspect-ratio:auto}
@media(max-width:940px){
  .g-3,.g-4{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:44px}
}
@media(max-width:620px){
  .g-2,.g-3,.g-4{grid-template-columns:1fr}
}

/* ---------- 4. Type scale ---------- */
.eyebrow{
  font-family:var(--font-display);
  font-size:12px;font-weight:700;letter-spacing:.22em;text-transform:uppercase;
  color:var(--amber);margin-bottom:20px;display:flex;align-items:center;gap:12px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--amber);opacity:.7;flex:none}
.eyebrow--plain::before{display:none}
.h-hero{font-size:clamp(42px,7.2vw,92px);letter-spacing:-.042em;line-height:.98}
.h-1{font-size:clamp(34px,5vw,62px)}
.h-2{font-size:clamp(27px,3.3vw,42px);letter-spacing:-.028em}
.h-3{font-size:clamp(20px,2vw,25px);letter-spacing:-.02em;font-weight:700}
.lead{font-size:clamp(17px,1.5vw,21px);line-height:1.6;color:var(--text-2);max-width:62ch}
.muted{color:var(--text-2)}
.dim{color:var(--text-3)}
.amber{color:var(--amber)}
.measure{max-width:66ch}
.mt-s{margin-top:14px}.mt-m{margin-top:24px}.mt-l{margin-top:40px}.mt-xl{margin-top:64px}

/* ---------- 5. Buttons ---------- */
.btn{
  --bg:var(--amber);--fg:#141105;
  display:inline-flex;align-items:center;gap:10px;
  padding:15px 28px;border-radius:100px;border:1px solid transparent;
  background:var(--bg);color:var(--fg);
  font-family:var(--font-display);font-weight:700;font-size:14px;
  letter-spacing:.04em;text-transform:uppercase;
  cursor:pointer;transition:transform .35s var(--ease),background .3s,box-shadow .35s;
  box-shadow:0 0 0 0 rgba(245,200,66,.34);
}
.btn:hover{transform:translateY(-2px);box-shadow:0 14px 34px -12px rgba(245,200,66,.55)}
.btn--ghost{--bg:transparent;--fg:var(--text);border-color:var(--line-strong)}
.btn--ghost:hover{background:rgba(255,255,255,.06);box-shadow:none}
.btn--sm{padding:11px 20px;font-size:12.5px}
.btn .arw{transition:transform .35s var(--ease)}
.btn:hover .arw{transform:translateX(4px)}

.link-arrow{
  display:inline-flex;align-items:center;gap:9px;color:var(--amber);
  font-family:var(--font-display);font-weight:700;font-size:13.5px;
  letter-spacing:.09em;text-transform:uppercase;
}
.link-arrow svg{transition:transform .35s var(--ease)}
.link-arrow:hover svg{transform:translateX(5px)}

/* ---------- 6. Navigation ---------- */
.nav{
  position:fixed;inset:0 0 auto 0;height:var(--nav-h);z-index:100;
  display:flex;align-items:center;
  transition:background .4s var(--ease),backdrop-filter .4s,border-color .4s;
  border-bottom:1px solid transparent;
}
.nav.is-stuck{
  background:rgba(8,8,10,.82);
  backdrop-filter:saturate(160%) blur(18px);
  -webkit-backdrop-filter:saturate(160%) blur(18px);
  border-bottom-color:var(--line);
}
.nav__inner{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gut);
  display:flex;align-items:center;gap:clamp(18px,3vw,48px)}
.brand{display:flex;align-items:center;gap:11px;flex:none}
.brand__mark{width:34px;height:34px;flex:none}
.brand__mark svg{width:100%;height:100%;overflow:visible}
.brand__txt{font-family:var(--font-display);font-weight:800;font-size:19px;letter-spacing:-.02em;line-height:1}
.brand__txt em{font-style:normal;color:var(--amber)}
.brand__sub{display:block;font-family:var(--font-display);font-size:8.5px;font-weight:600;
  letter-spacing:.19em;text-transform:uppercase;color:var(--text-3);margin-top:3px}

.nav__links{display:flex;align-items:center;gap:clamp(14px,2vw,30px);margin-left:auto;min-width:0}
.nav__links a{
  font-size:14.5px;color:var(--text-2);position:relative;padding-block:6px;
  transition:color .25s;white-space:nowrap;
}
.nav__links a::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:1px;background:var(--amber);transition:right .35s var(--ease)}
.nav__links a:hover,.nav__links a[aria-current="page"]{color:var(--text)}
.nav__links a[aria-current="page"]::after,.nav__links a:hover::after{right:0}
.nav__actions{display:flex;align-items:center;gap:14px;flex:none}

.langtoggle{display:flex;align-items:center;border:1px solid var(--line);border-radius:100px;padding:3px;background:rgba(255,255,255,.03)}
.langtoggle button{
  background:none;border:0;cursor:pointer;padding:5px 11px;border-radius:100px;
  font-family:var(--font-display);font-size:11.5px;font-weight:700;letter-spacing:.1em;
  color:var(--text-3);transition:color .25s,background .25s;
}
.langtoggle button.is-on{background:var(--amber);color:#141105}

.burger{display:none;background:none;border:0;cursor:pointer;padding:8px;margin-right:-8px}
.burger span{display:block;width:24px;height:2px;background:var(--text);border-radius:2px;transition:transform .35s var(--ease),opacity .25s}
.burger span+span{margin-top:6px}
.nav.is-open .burger span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.nav.is-open .burger span:nth-child(2){opacity:0}
.nav.is-open .burger span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

@media(max-width:620px){
  .brand__sub{display:none}
  .brand__txt{font-size:17px}
  .brand__mark{width:30px;height:30px}
  .langtoggle button{padding:5px 9px;font-size:11px}
  .nav__inner{gap:12px}
  .hero__sub{font-size:16px}
}

@media(max-width:1200px){
  .burger{display:block;order:3}
  .nav__links{
    position:fixed;inset:var(--nav-h) 0 auto 0;
    flex-direction:column;align-items:flex-start;gap:0;
    background:rgba(8,8,10,.97);backdrop-filter:blur(20px);
    padding:14px var(--gut) 30px;border-bottom:1px solid var(--line);
    transform:translateY(-14px);opacity:0;pointer-events:none;transition:.35s var(--ease);
  }
  .nav.is-open .nav__links{transform:none;opacity:1;pointer-events:auto}
  .nav__links a{width:100%;padding-block:15px;border-bottom:1px solid rgba(255,255,255,.06);font-size:17px}
  .nav__actions .btn{display:none}
}

/* ---------- 7. Hero ---------- */
.hero{position:relative;min-height:min(100svh,880px);display:flex;align-items:flex-end;
  padding-top:calc(var(--nav-h) + 40px);padding-bottom:clamp(48px,7vw,92px);overflow:hidden}
.hero--short{min-height:min(76svh,640px)}
.hero__bg{position:absolute;inset:0;z-index:0}
.hero__bg img{width:100%;height:100%;object-fit:cover;transform:scale(1.06);
  animation:heroDrift 22s var(--ease) forwards}
@keyframes heroDrift{to{transform:scale(1)}}
.hero__bg::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(8,8,10,.86) 0%,rgba(8,8,10,.34) 32%,rgba(8,8,10,.80) 74%,var(--ink) 100%),
    radial-gradient(120% 80% at 15% 90%,rgba(8,8,10,.86),transparent 62%);
}
.hero__grain{position:absolute;inset:0;z-index:1;opacity:.32;pointer-events:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='.42'/%3E%3C/svg%3E")}
.hero__inner{position:relative;z-index:2;width:100%}
.hero__kicker{font-family:var(--font-display);font-size:12px;font-weight:700;letter-spacing:.24em;
  text-transform:uppercase;color:var(--amber);margin-bottom:26px}
.hero__title{max-width:17ch}
.hero__title .soft{color:var(--text-2);font-weight:300}
.hero__sub{margin-top:26px;max-width:56ch;font-size:clamp(16.5px,1.5vw,20px);color:#D2D3DA}
.hero__cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:38px}
.hero__scroll{position:absolute;left:var(--gut);bottom:46px;z-index:3;display:flex;align-items:center;gap:12px;
  font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--text-3);font-family:var(--font-display);font-weight:600}
.hero__scroll i{display:block;width:1px;height:34px;background:linear-gradient(var(--amber),transparent);animation:scrollPulse 2.2s infinite}
@keyframes scrollPulse{0%,100%{opacity:.25;transform:scaleY(.6)}50%{opacity:1;transform:scaleY(1)}}
@media(max-width:760px){.hero__scroll{display:none}}

/* pulse line that runs across the hero */
.pulseline{position:absolute;left:0;right:0;bottom:0;z-index:1;height:130px;pointer-events:none;opacity:.7}
.pulseline path{fill:none;stroke:var(--amber);stroke-width:1.6;
  filter:drop-shadow(0 0 9px rgba(245,200,66,.55));
  stroke-dasharray:1400;stroke-dashoffset:1400;animation:draw 3.4s var(--ease) .35s forwards}
@keyframes draw{to{stroke-dashoffset:0}}

/* ---------- 8. Stat strip ---------- */
.stats{border-block:1px solid var(--line);background:linear-gradient(180deg,rgba(255,255,255,.028),transparent)}
.stats__grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:clamp(28px,3.4vw,46px) clamp(16px,2.4vw,34px);border-left:1px solid var(--line)}
.stat:first-child{border-left:0}
.stat__n{font-family:var(--font-display);font-weight:800;font-size:clamp(34px,4.4vw,58px);
  letter-spacing:-.04em;line-height:1;color:var(--amber)}
.stat__n small{font-size:.42em;letter-spacing:0;margin-left:4px;color:var(--text-2);font-weight:700}
.stat__l{margin-top:12px;font-size:13.5px;color:var(--text-2);line-height:1.45;max-width:26ch}
@media(max-width:820px){
  .stats__grid{grid-template-columns:repeat(2,1fr)}
  .stat{border-left:0;border-top:1px solid var(--line)}
  .stat:nth-child(2n){border-left:1px solid var(--line)}
  .stat:nth-child(-n+2){border-top:0}
}

/* ---------- 9. Cards ---------- */
.card{
  background:linear-gradient(160deg,rgba(255,255,255,.045),rgba(255,255,255,.012));
  border:1px solid var(--line);border-radius:var(--r-lg);
  padding:clamp(24px,2.6vw,36px);position:relative;overflow:hidden;
  transition:border-color .4s,transform .5s var(--ease),background .4s;
}
.card::before{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:radial-gradient(90% 60% at 50% -10%,rgba(245,200,66,.16),transparent 70%);
  opacity:0;transition:opacity .5s}
.card:hover{transform:translateY(-4px);border-color:rgba(245,200,66,.42)}
.card:hover::before{opacity:1}
.card__ico{width:44px;height:44px;display:grid;place-items:center;border-radius:12px;
  background:rgba(245,200,66,.12);border:1px solid rgba(245,200,66,.28);color:var(--amber);margin-bottom:20px}
.card__ico svg{width:22px;height:22px}
.card h3{margin-bottom:11px}
.card p{color:var(--text-2);font-size:15.5px;line-height:1.6}
.card--flat{background:var(--surface);border-radius:var(--r-md)}
.card--num{padding-top:clamp(28px,3vw,40px)}
.card__num{font-family:var(--font-display);font-size:13px;font-weight:800;letter-spacing:.14em;
  color:var(--amber);margin-bottom:16px}

/* image cards */
.imgcard{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  min-height:340px;display:flex;align-items:flex-end;isolation:isolate}
.imgcard img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;
  transition:transform 1.1s var(--ease);filter:saturate(.9)}
.imgcard::after{content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(8,8,10,.14) 0%,rgba(8,8,10,.72) 55%,rgba(8,8,10,.94) 100%)}
.imgcard:hover img{transform:scale(1.06)}
.imgcard__body{padding:clamp(22px,2.4vw,30px);width:100%}
.imgcard__body h3{margin-bottom:8px}
.imgcard__body p{font-size:14.5px;color:var(--text-2)}

/* ---------- 10. Feature rows ---------- */
.figure{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line)}
.figure img{width:100%;height:100%;object-fit:cover}
.figure video{display:block;width:100%;height:100%;object-fit:cover;min-height:320px}
.figure--tall{aspect-ratio:4/5}
.figure__cap{position:absolute;left:0;right:0;bottom:0;padding:22px 24px;
  background:linear-gradient(transparent,rgba(8,8,10,.92));font-size:13px;color:var(--text-2)}

.checklist{list-style:none;padding:0;margin:26px 0 0;display:grid;gap:13px}
.checklist li{display:flex;gap:13px;align-items:flex-start;font-size:15.5px;color:var(--text-2)}
.checklist svg{flex:none;margin-top:4px;color:var(--amber)}

.bullets{list-style:none;padding:0;margin:0;display:grid;gap:11px}
.bullets li{position:relative;padding-left:20px;font-size:15px;color:var(--text-2)}
.bullets li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;background:var(--amber);opacity:.8}

/* ---------- 11. Comparison table ---------- */
.tablewrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-lg);background:var(--surface)}
table.cmp{width:100%;border-collapse:collapse;min-width:720px}
table.cmp th,table.cmp td{padding:18px 20px;text-align:left;border-bottom:1px solid var(--line);font-size:15px;vertical-align:middle}
table.cmp thead th{
  font-family:var(--font-display);font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--text-2);background:rgba(255,255,255,.03);font-weight:700;
}
table.cmp thead th.is-hero{color:#141105;background:var(--amber)}
table.cmp tbody th{font-weight:500;color:var(--text);width:36%}
table.cmp td{text-align:center;color:var(--text-2)}
table.cmp td.is-hero{background:rgba(245,200,66,.07);color:var(--text);font-weight:600}
table.cmp tr:last-child th,table.cmp tr:last-child td{border-bottom:0}
.mark{display:inline-grid;place-items:center;width:24px;height:24px;border-radius:50%;font-size:13px;font-weight:700}
.mark--y{background:rgba(74,222,128,.14);color:var(--ok)}
.mark--n{background:rgba(240,96,63,.14);color:var(--bad)}
.mark--p{background:rgba(245,200,66,.16);color:var(--amber)}

/* ---------- 12. Architecture diagram ---------- */
.arch{border:1px solid var(--line);border-radius:var(--r-lg);background:
  radial-gradient(120% 120% at 50% 0%,rgba(245,200,66,.07),transparent 62%),var(--surface);
  padding:clamp(24px,3vw,44px)}
.arch svg{width:100%;height:auto}
.flowdot{fill:var(--amber)}

/* ---------- 13. Timeline / steps ---------- */
.steps{counter-reset:s;display:grid;gap:0;border-top:1px solid var(--line)}
.step{display:grid;grid-template-columns:78px 1fr;gap:clamp(16px,3vw,40px);
  padding:clamp(22px,2.6vw,34px) 0;border-bottom:1px solid var(--line);align-items:start;
  transition:background .4s}
.step:hover{background:rgba(255,255,255,.022)}
.step__n{font-family:var(--font-display);font-weight:800;font-size:15px;color:var(--amber);
  letter-spacing:.08em;padding-top:5px}
.step__b h3{margin-bottom:9px}
.step__b p{color:var(--text-2);font-size:15.5px;max-width:70ch}
.step__tag{display:inline-block;margin-top:12px;font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;
  font-family:var(--font-display);font-weight:700;color:var(--text-3);border:1px solid var(--line);
  border-radius:100px;padding:5px 12px}

.tl{position:relative;padding-left:34px}
.tl::before{content:"";position:absolute;left:7px;top:6px;bottom:6px;width:1px;
  background:linear-gradient(var(--amber),rgba(245,200,66,.08))}
.tl__item{position:relative;padding-bottom:38px}
.tl__item:last-child{padding-bottom:0}
.tl__item::before{content:"";position:absolute;left:-32px;top:7px;width:15px;height:15px;border-radius:50%;
  border:2px solid var(--amber);background:var(--ink)}
.tl__item.is-now::before{background:var(--amber);box-shadow:0 0 0 6px rgba(245,200,66,.16)}
.tl__y{font-family:var(--font-display);font-weight:800;font-size:13px;letter-spacing:.16em;color:var(--amber)}
.tl__t{font-family:var(--font-display);font-weight:700;font-size:19px;margin-top:7px}
.tl__d{color:var(--text-2);font-size:15px;margin-top:6px;max-width:58ch}

/* ---------- 14. Quote / pull ---------- */
.pull{border-left:2px solid var(--amber);padding:6px 0 6px 26px;
  font-family:var(--font-display);font-weight:600;font-size:clamp(20px,2.4vw,30px);
  line-height:1.28;letter-spacing:-.02em;max-width:24ch}
.pull cite{display:block;font-family:var(--font-body);font-style:normal;font-weight:400;
  font-size:14px;color:var(--text-3);margin-top:16px;letter-spacing:0}

.banner{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  padding:clamp(38px,5.5vw,78px) clamp(26px,4vw,64px);
  background:linear-gradient(120deg,#14131A,#0B0B0E 62%);
  border:1px solid var(--line);
}
.banner::after{content:"";position:absolute;right:-8%;top:-40%;width:52%;height:180%;
  background:radial-gradient(closest-side,rgba(245,200,66,.20),transparent);pointer-events:none}
.banner__in{position:relative;z-index:1}

/* ---------- 15. Calculator ---------- */
.calc{display:grid;grid-template-columns:1fr .92fr;gap:clamp(24px,3vw,48px);align-items:start}
@media(max-width:900px){.calc{grid-template-columns:1fr}}
.field{margin-bottom:24px}
.field label{display:flex;justify-content:space-between;align-items:baseline;gap:12px;
  font-size:14px;color:var(--text-2);margin-bottom:11px}
.field output{font-family:var(--font-display);font-weight:800;font-size:19px;color:var(--amber);letter-spacing:-.02em}
input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:3px;border-radius:3px;
  background:linear-gradient(90deg,var(--amber) var(--p,50%),rgba(255,255,255,.14) var(--p,50%));outline:none}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:20px;height:20px;border-radius:50%;
  background:var(--amber);border:3px solid var(--ink);cursor:pointer;box-shadow:0 0 0 1px rgba(245,200,66,.5)}
input[type=range]::-moz-range-thumb{width:16px;height:16px;border-radius:50%;background:var(--amber);
  border:3px solid var(--ink);cursor:pointer}
.result{background:linear-gradient(160deg,rgba(245,200,66,.13),rgba(245,200,66,.02));
  border:1px solid rgba(245,200,66,.32);border-radius:var(--r-lg);padding:clamp(26px,3vw,38px)}
.result__k{font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--text-2);font-family:var(--font-display);font-weight:700}
.result__v{font-family:var(--font-display);font-weight:800;font-size:clamp(38px,5.4vw,64px);
  letter-spacing:-.045em;line-height:1;margin-top:10px;color:var(--amber)}
.result__row{display:flex;justify-content:space-between;gap:16px;padding:13px 0;border-top:1px solid rgba(255,255,255,.09);font-size:14.5px;color:var(--text-2)}
.result__row b{color:var(--text);font-weight:600}
.disclaimer{font-size:12.5px;color:var(--text-3);line-height:1.55;margin-top:18px}

/* ---------- 16. Forms ---------- */
.form{display:grid;gap:20px}
.form .row{display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media(max-width:620px){.form .row{grid-template-columns:1fr}}
.form label{display:block;font-size:13px;letter-spacing:.06em;text-transform:uppercase;
  font-family:var(--font-display);font-weight:600;color:var(--text-3);margin-bottom:9px}
.form input,.form select,.form textarea{
  width:100%;background:rgba(255,255,255,.04);border:1px solid var(--line);
  border-radius:var(--r-sm);padding:14px 16px;font-size:15.5px;transition:border-color .3s,background .3s}
.form input:focus,.form select:focus,.form textarea:focus{outline:none;border-color:var(--amber);background:rgba(255,255,255,.06)}
.form textarea{min-height:130px;resize:vertical}
.form select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23A9AAB4' stroke-width='1.6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 16px center}
.form option{background:#131317}
.formnote{font-size:13px;color:var(--text-3)}

/* ---------- 17. Footer ---------- */
.footer{border-top:1px solid var(--line);background:#070709;padding-block:clamp(52px,6vw,82px) 34px}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:clamp(24px,3vw,44px)}
@media(max-width:900px){.footer__grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.footer__grid{grid-template-columns:1fr}}
.footer h4{font-family:var(--font-display);font-size:12px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--text-3);font-weight:700;margin-bottom:18px}
.footer ul{list-style:none;padding:0;margin:0;display:grid;gap:11px}
.footer a{color:var(--text-2);font-size:14.5px;transition:color .25s}
.footer a:hover{color:var(--amber)}
.footer__bottom{margin-top:clamp(38px,4vw,58px);padding-top:24px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;font-size:13px;color:var(--text-3)}
.tm{font-size:.62em;vertical-align:super;opacity:.75}

/* ---------- 18. Reveal animation ---------- */
.rv{opacity:0;transform:translateY(22px);transition:opacity .55s var(--ease),transform .55s var(--ease)}
.rv.in{opacity:1;transform:none}
.rv-d1{transition-delay:.06s}.rv-d2{transition-delay:.12s}.rv-d3{transition-delay:.18s}.rv-d4{transition-delay:.24s}
@media(prefers-reduced-motion:reduce){
  .rv{opacity:1;transform:none;transition:none}
  .hero__bg img{animation:none;transform:none}
  .pulseline path{animation:none;stroke-dashoffset:0}
  html{scroll-behavior:auto}
}

/* ---------- 19. Utilities ---------- */
.center{text-align:center}
.center .eyebrow{justify-content:center}
.center .lead{margin-inline:auto}
.divider{height:1px;background:var(--line);border:0;margin:0}
.badge{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:100px;
  padding:7px 15px;font-size:12px;letter-spacing:.1em;text-transform:uppercase;
  font-family:var(--font-display);font-weight:600;color:var(--text-2);background:rgba(255,255,255,.03)}
.badge i{width:6px;height:6px;border-radius:50%;background:var(--amber);display:block}
.tagrow{display:flex;flex-wrap:wrap;gap:10px}
.hide{display:none !important}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ==========================================================================
   20. LIGHT THEME (default) — "Day mode"
   Dark styles above remain the night theme. Everything below re-skins the
   site for daylight: warm paper background, white cards, soft shadows.
   Heroes, banners and the architecture panel stay cinematic-dark in both
   themes — photography and diagrams read better that way.
   ========================================================================== */

html[data-theme="light"]{
  --ink:#F6F5F2;
  --ink-2:#FFFFFF;
  --surface:#FFFFFF;
  --surface-2:#F0EFEA;
  --line:rgba(20,20,26,.10);
  --line-strong:rgba(20,20,26,.22);
  --text:#15151A;
  --text-2:#4E4F58;
  --text-3:#5F606A;
  --accent-ink:#7A6207;
}
html:not([data-theme="light"]){ --accent-ink:var(--amber); }

html[data-theme="light"] body{background:var(--ink);color:var(--text)}

/* accent text switches to a readable deep amber on paper */
html[data-theme="light"] .eyebrow,
html[data-theme="light"] .amber,
html[data-theme="light"] .card__num,
html[data-theme="light"] .stat__n,
html[data-theme="light"] .step__n,
html[data-theme="light"] .tl__y,
html[data-theme="light"] .link-arrow{color:var(--accent-ink)}
html[data-theme="light"] .eyebrow::before{background:var(--accent-ink)}

/* sections */
html[data-theme="light"] .section--dark{background:#EFEEE9}
html[data-theme="light"] .section--panel{background:linear-gradient(180deg,#F6F5F2 0%,#ECEBE5 100%)}

/* stat strip */
html[data-theme="light"] .stats{background:#FFFFFF;border-color:var(--line)}

/* cards */
html[data-theme="light"] .card{
  background:#FFFFFF;
  border-color:var(--line);
  box-shadow:0 1px 2px rgba(20,20,26,.05),0 12px 32px -18px rgba(20,20,26,.14);
}
html[data-theme="light"] .card::before{
  background:radial-gradient(90% 60% at 50% -10%,rgba(245,200,66,.22),transparent 70%);
}
html[data-theme="light"] .card:hover{border-color:rgba(154,123,10,.45)}
html[data-theme="light"] .card--flat{background:#FFFFFF}
html[data-theme="light"] .card__ico{background:rgba(245,200,66,.16);border-color:rgba(154,123,10,.3);color:#8A6E08}

/* tables */
html[data-theme="light"] .tablewrap{background:#FFFFFF;border-color:var(--line)}
html[data-theme="light"] table.cmp thead th{background:#F4F3EF;color:var(--text-2)}
html[data-theme="light"] table.cmp thead th.is-hero{background:var(--amber);color:#141105}
html[data-theme="light"] table.cmp td.is-hero{background:rgba(245,200,66,.12);color:var(--text)}

/* steps + timeline */
html[data-theme="light"] .step:hover{background:rgba(20,20,26,.03)}
html[data-theme="light"] .step__tag{border-color:var(--line);color:var(--text-3)}
html[data-theme="light"] .tl::before{background:linear-gradient(#C9A227,rgba(154,123,10,.12))}
html[data-theme="light"] .tl__item::before{border-color:#C9A227;background:var(--ink)}
html[data-theme="light"] .tl__item.is-now::before{background:#C9A227;box-shadow:0 0 0 6px rgba(201,162,39,.18)}

/* pull quote */
html[data-theme="light"] .pull{border-left-color:#C9A227}

/* forms */
html[data-theme="light"] .form input,
html[data-theme="light"] .form select,
html[data-theme="light"] .form textarea{
  background:#FFFFFF;border-color:var(--line-strong)
}
html[data-theme="light"] .form input:focus,
html[data-theme="light"] .form select:focus,
html[data-theme="light"] .form textarea:focus{border-color:#C9A227;background:#FFFFFF}
html[data-theme="light"] .form select{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%234E4F58' stroke-width='1.6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right 16px center}
html[data-theme="light"] .form option{background:#FFFFFF;color:#15151A}

/* calculator */
html[data-theme="light"] input[type=range]{
  background:linear-gradient(90deg,#C9A227 var(--p,50%),rgba(20,20,26,.16) var(--p,50%))}
html[data-theme="light"] input[type=range]::-webkit-slider-thumb{background:#C9A227;border-color:#FFFFFF;box-shadow:0 1px 4px rgba(20,20,26,.3)}
html[data-theme="light"] input[type=range]::-moz-range-thumb{background:#C9A227;border-color:#FFFFFF}
html[data-theme="light"] .result{
  background:linear-gradient(160deg,rgba(245,200,66,.20),rgba(245,200,66,.05));
  border-color:rgba(154,123,10,.35)}
html[data-theme="light"] .result__v{color:#8A6E08}
html[data-theme="light"] .result__row{border-top-color:rgba(20,20,26,.10)}

/* badges */
html[data-theme="light"] .badge{background:#FFFFFF;border-color:var(--line);color:var(--text-2)}
html[data-theme="light"] .badge i{background:#C9A227}

/* marks in tables */
html[data-theme="light"] .mark--y{background:rgba(22,140,70,.12);color:#177A43}
html[data-theme="light"] .mark--n{background:rgba(196,60,28,.12);color:#B43A18}
html[data-theme="light"] .mark--p{background:rgba(154,123,10,.14);color:#8A6E08}

/* figure captions stay on photos (dark) — leave as-is */

/* ---------- nav in light mode ----------
   Over the dark hero (not stuck) the nav keeps light text.
   Once stuck (or on pages without hero) it becomes a light glass bar. */
html[data-theme="light"] .nav.is-stuck{
  background:rgba(250,249,246,.86);
  border-bottom-color:var(--line);
}
html[data-theme="light"] .nav.is-stuck .brand__txt{color:var(--text)}
html[data-theme="light"] .nav.is-stuck .brand__txt em{color:#8A6E08}
html[data-theme="light"] .nav.is-stuck .nav__links a{color:var(--text-2)}
html[data-theme="light"] .nav.is-stuck .nav__links a:hover,
html[data-theme="light"] .nav.is-stuck .nav__links a[aria-current="page"]{color:var(--text)}
html[data-theme="light"] .nav.is-stuck .nav__links a::after{background:#8A6E08}
html[data-theme="light"] .nav.is-stuck .brand__sub{color:var(--text-3)}
html[data-theme="light"] .nav.is-stuck .burger span{background:var(--text)}
html[data-theme="light"] .nav.is-stuck .langtoggle{border-color:var(--line-strong);background:rgba(20,20,26,.04)}
html[data-theme="light"] .nav.is-stuck .langtoggle button{color:var(--text-3)}
html[data-theme="light"] .nav.is-stuck .langtoggle button.is-on{background:var(--amber);color:#141105}
html[data-theme="light"] .nav.is-stuck .themetoggle{border-color:var(--line-strong);color:var(--text-2);background:rgba(20,20,26,.04)}

/* non-stuck nav always floats over a dark hero → light text (both themes) */
.nav:not(.is-stuck) .brand__txt{color:#F4F4F6}
.nav:not(.is-stuck) .brand__sub{color:#9C9DA6}
.nav:not(.is-stuck) .nav__links a{color:#C9CAD2}
.nav:not(.is-stuck) .nav__links a:hover,
.nav:not(.is-stuck) .nav__links a[aria-current="page"]{color:#FFFFFF}
.nav:not(.is-stuck) .burger span{background:#F4F4F6}
.nav:not(.is-stuck) .themetoggle{color:#E8E8EC}

/* mobile menu sheet in light */
@media(max-width:1200px){
  html[data-theme="light"] .nav.is-open .nav__links,
  html[data-theme="light"] .nav__links{
    background:rgba(250,249,246,.97);
    border-bottom-color:var(--line);
  }
  html[data-theme="light"] .nav__links a{color:var(--text) !important;border-bottom-color:rgba(20,20,26,.08)}
}

/* footer stays dark in both themes — intentional contrast block */
html[data-theme="light"] .footer{background:#101014}
html[data-theme="light"] .footer a{color:#A9AAB4}
html[data-theme="light"] .footer a:hover{color:var(--amber)}
html[data-theme="light"] .footer .muted{color:#A9AAB4}
html[data-theme="light"] .footer .brand__txt{color:#F4F4F6}

/* checklist icons */
html[data-theme="light"] .checklist svg{color:#8A6E08}
html[data-theme="light"] .bullets li::before{background:#C9A227}

/* selection */
html[data-theme="light"] ::selection{background:#15151A;color:#F5C842}

/* ---------- theme toggle button ---------- */
.themetoggle{
  display:grid;place-items:center;width:38px;height:38px;flex:none;
  border:1px solid var(--line-strong);border-radius:50%;
  background:rgba(255,255,255,.04);cursor:pointer;color:var(--text-2);
  transition:transform .4s var(--ease),background .3s,color .3s;
}
.themetoggle:hover{transform:rotate(18deg);color:var(--amber)}
.themetoggle svg{width:17px;height:17px}
.themetoggle .ico-sun{display:none}
.themetoggle .ico-moon{display:block}
html[data-theme="light"] .themetoggle .ico-sun{display:none}
html[data-theme="light"] .themetoggle .ico-moon{display:block}
html:not([data-theme="light"]) .themetoggle .ico-sun{display:block}
html:not([data-theme="light"]) .themetoggle .ico-moon{display:none}

/* ---------- hero video ---------- */
.hero__video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero__bg .hero__video + img{display:none}
.hero__bg.novideo .hero__video{display:none}
.hero__bg.novideo img{display:block}

/* ---------- sector marquee ---------- */
.marquee{overflow:hidden;border-bottom:1px solid var(--line);padding-block:18px;background:var(--ink)}
.marquee__track{display:flex;white-space:nowrap;width:max-content;animation:mq 38s linear infinite}
.marquee__track span{
  font-family:var(--font-display);font-size:13px;font-weight:700;
  letter-spacing:.22em;text-transform:uppercase;color:var(--text-3);
}
@keyframes mq{to{transform:translateX(-50%)}}
@media(prefers-reduced-motion:reduce){.marquee__track{animation:none}}

/* ---------- fixed-light zones (photo/dark blocks keep light text in BOTH themes) ---------- */
.hero,.hero .h-hero,.hero__title{color:#F4F4F6}
.hero__title .soft{color:#B7B8C2}
.hero__kicker{color:var(--amber)}
.hero__sub{color:#D2D3DA}
.hero__scroll{color:#9C9DA6}
.imgcard__body,.imgcard__body h3{color:#F4F4F6}
.imgcard__body p{color:#C6C7CF}
.figure__cap{color:#C6C7CF}
.banner,.banner .h-1,.banner .h-2{color:#F4F4F6}
.banner .lead{color:#B9BAC3}
.banner .eyebrow{color:var(--amber)}
.banner .muted{color:#B9BAC3}
html[data-theme="light"] .banner .eyebrow::before{background:var(--amber)}
html[data-theme="light"] .banner .h-3.amber{color:var(--amber)}
.footer,.footer .brand__txt{color:#F4F4F6}
/* arch panel stays dark; its inline SVG colors are fixed */
html[data-theme="light"] .arch{background:
  radial-gradient(120% 120% at 50% 0%,rgba(245,200,66,.08),transparent 62%),#15151B;
  border-color:rgba(20,20,26,.2)}


/* nav breathing room in the mid band */
@media(min-width:1201px) and (max-width:1360px){
  .nav__inner{gap:18px}
  .nav__links{gap:16px}
  .nav__actions{gap:10px}
  .nav__actions .btn--sm{padding:10px 14px;font-size:11.5px}
  .brand__sub{display:none}
}
.nav__actions{flex:none}


/* ==========================================================================
   21. v3 refinements (post-review)
   ========================================================================== */

/* hero stays dark and cuts clean against the light page (no cream fog) */
html[data-theme="light"] .hero__bg::after{
  background:
    linear-gradient(180deg,rgba(8,8,10,.86) 0%,rgba(8,8,10,.38) 32%,rgba(8,8,10,.82) 74%,#0B0B0E 100%),
    radial-gradient(120% 80% at 15% 90%,rgba(8,8,10,.86),transparent 62%);
}
html[data-theme="light"] .hero{background:#0B0B0E}

/* focus visibility + skip link */
:focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:4px}
html[data-theme="light"] :focus-visible{outline-color:#8A6E08}
.skiplink{position:absolute;left:-9999px;top:0;z-index:200;background:var(--amber);color:#141105;
  padding:12px 20px;border-radius:0 0 10px 0;font-family:var(--font-display);font-weight:700;font-size:13px}
.skiplink:focus{left:0}

/* pulseline out of the way on small screens */
@media(max-width:760px){.pulseline{display:none}}

/* utilities replacing inline styles */
.stat__n--sm{font-size:30px}
.pull--bare{border:0;padding-left:0}
.grid--tight{gap:16px}
.tablewrap--round{border-radius:22px}

/* CTA inside the mobile nav sheet */
.nav__links .nav__cta{display:none}
@media(max-width:1200px){
  .nav__links .nav__cta{display:inline-flex;margin-top:16px;border-bottom:none;width:auto;padding:13px 24px}
}

/* nav breathing room up to 1480 to avoid any collision */
@media(min-width:1201px) and (max-width:1480px){
  .nav__inner{gap:16px}
  .nav__links{gap:clamp(12px,1.4vw,22px)}
  .nav__actions{gap:9px}
  .nav__actions .btn--sm{padding:10px 15px;font-size:11.5px;letter-spacing:.03em}
  .brand__sub{display:none}
}

/* resources / downloads row */
.resource{display:flex;align-items:center;gap:14px;border:1px solid var(--line);border-radius:var(--r-md);
  padding:16px 18px;background:rgba(255,255,255,.03);transition:border-color .3s,transform .3s}
.resource:hover{border-color:rgba(245,200,66,.5);transform:translateY(-2px)}
html[data-theme="light"] .resource{background:#FFFFFF}
.resource__ico{width:38px;height:38px;flex:none;display:grid;place-items:center;border-radius:10px;
  background:rgba(245,200,66,.14);color:var(--accent-ink)}
.resource b{font-family:var(--font-display);font-size:14.5px;display:block}
.resource span{font-size:12.5px;color:var(--text-3)}

/* consent row */
.consent{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--text-3)}
.consent input{width:16px;height:16px;margin-top:2px;accent-color:var(--amber)}
.consent a{text-decoration:underline}

/* spec table density */
table.cmp.cmp--spec td,table.cmp.cmp--spec th{padding:13px 16px;font-size:14px}
table.cmp.cmp--spec tbody th{width:44%}
table.cmp.cmp--spec td{text-align:left;color:var(--text-2)}