:root{
  --ink:#080808;--paper:#f5f5f2;--white:#fff;--acid:#fff;
  --orange:#dededb;--violet:#1a1a1a;--blue:#111;--line:#181818;
  --ease:cubic-bezier(.22,1,.36,1);--pad:clamp(18px,3.2vw,54px)
}
*{border-color:var(--line)}
html{scroll-behavior:smooth;scroll-padding-top:86px}
body{background:var(--paper);color:var(--ink);font-family:'Vazirmatn',Tahoma,Arial,sans-serif;overflow-x:hidden}
::selection{background:var(--acid);color:var(--ink)}
.scroll-progress{position:fixed;inset:0 0 auto;z-index:120;height:3px;pointer-events:none}
.scroll-progress span{display:block;width:100%;height:100%;background:var(--acid);transform:scaleX(0);transform-origin:right center}
.site-header{position:fixed;inset:0 0 auto;z-index:100;height:76px;background:transparent;border:0;transition:background .35s,color .35s,transform .35s;backdrop-filter:none}
.site-header.is-scrolled{background:rgba(246,244,239,.9);color:var(--ink);backdrop-filter:blur(18px);border-bottom:1px solid rgba(10,10,10,.18)}
.navin{max-width:none;height:100%;padding:14px var(--pad);gap:18px}
.brand{gap:13px;position:relative;z-index:3}.brand-mark{width:42px;height:42px;gap:4px}.brand-mark span{background:currentColor;border-radius:0}
.brand-copy strong{font-size:21px;font-weight:900;letter-spacing:-1px}.brand-copy small{color:inherit;opacity:.62;font-size:7px;letter-spacing:2px}
.top-nav{gap:7px;margin-right:auto}.top-nav a,.nav-cta{display:inline-flex;align-items:center;min-height:36px;padding:7px 16px;border:1px solid currentColor;border-radius:999px;background:transparent;color:inherit;font-size:12px;transition:background .25s,color .25s,transform .25s}
.top-nav a:hover,.nav-cta:hover{background:var(--ink);color:var(--white);transform:translateY(-2px)}
.nav-cta{margin-right:8px;background:var(--ink);color:var(--white);border-color:var(--ink)}
.nav-menu{display:none;position:relative;z-index:3;width:44px;height:44px;border:1px solid currentColor!important;border-radius:50%!important;background:transparent!important;color:inherit!important;padding:0!important;box-shadow:none!important}
.nav-menu span,.nav-menu:before,.nav-menu:after{content:"";position:absolute;right:11px;left:11px;height:1.5px;background:currentColor;transition:.3s var(--ease)}
.nav-menu span{top:21px}.nav-menu:before{top:15px}.nav-menu:after{top:27px}.nav-menu[aria-expanded=true] span{opacity:0}.nav-menu[aria-expanded=true]:before{top:21px;transform:rotate(45deg)}.nav-menu[aria-expanded=true]:after{top:21px;transform:rotate(-45deg)}
body:has(.home-hero) .site-header:not(.is-scrolled),body:has(.discipline-hero) .site-header:not(.is-scrolled),body:has(.architect-coming) .site-header:not(.is-scrolled){color:var(--white)}
body:has(.home-hero) .site-header:not(.is-scrolled) .nav-cta,body:has(.discipline-hero) .site-header:not(.is-scrolled) .nav-cta{background:var(--acid);border-color:var(--acid);color:var(--ink)}
.container-wide{max-width:1440px;padding-left:var(--pad);padding-right:var(--pad)}
.hero{min-height:100svh;padding:122px 0 48px;background:var(--ink);color:var(--white);border:0;display:flex;align-items:flex-end}
.hero:before{inset:-20%;background:radial-gradient(circle at calc(72% + var(--pointer-x,0px)) calc(38% + var(--pointer-y,0px)),rgba(114,87,255,.78),transparent 22%),radial-gradient(circle at 82% 68%,rgba(255,91,34,.58),transparent 21%),linear-gradient(120deg,transparent 0 56%,rgba(216,255,62,.15) 56% 57%,transparent 57%);background-size:auto;mask-image:none;opacity:.9;transition:transform .15s linear}
.hero:after{content:"ENGITOOLS / MEP / AI";position:absolute;left:var(--pad);top:94px;font-size:10px;letter-spacing:3px;direction:ltr;opacity:.55}
.hero-grid{width:100%;grid-template-columns:minmax(0,1fr);gap:32px}.hero-copy{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1fr) minmax(260px,33%);gap:28px;align-items:end}
.hero-copy .eyebrow{grid-column:1/-1;justify-self:start}.hero h1{grid-column:1/-1;font-size:clamp(58px,8.7vw,132px);line-height:.94;letter-spacing:-.055em;max-width:1280px;margin:8px 0 24px;font-weight:900;text-wrap:balance;min-height:1.9em;display:flex;align-items:flex-end}
.hero h1.kinetic-out{animation:heroOut .55s var(--ease) both}.hero h1.kinetic-in{animation:heroIn .8s var(--ease) both}
@keyframes heroOut{to{opacity:0;transform:translateY(-38px) skewY(-2deg);filter:blur(8px)}}@keyframes heroIn{from{opacity:0;transform:translateY(65px) skewY(3deg);filter:blur(10px)}to{opacity:1;transform:none;filter:none}}
.hero-lead{font-size:clamp(16px,1.4vw,21px);line-height:1.85;color:rgba(255,255,255,.78);margin:0;max-width:680px}.hero-actions{margin:0;justify-content:flex-start;align-self:end}.engineering-meta{grid-column:1/-1;border-top:1px solid rgba(255,255,255,.28);padding-top:17px;justify-content:space-between;color:rgba(255,255,255,.65);font-size:9px}
.eyebrow,.kicker{border:0;background:transparent;padding:0;border-radius:0;color:inherit;font-size:10px;letter-spacing:2.4px}.eyebrow:before,.kicker:before{content:"";display:inline-block;width:26px;height:2px;background:currentColor;margin-left:9px;vertical-align:middle}.status-dot{display:none}
.btn,button{border-radius:999px;padding:13px 22px;min-height:48px;transition:transform .35s var(--ease),background .25s,color .25s;box-shadow:none}.btn:hover,button:hover{transform:translateY(-3px)}
.btn.primary,.home-hero .electrical-btn{background:var(--acid);color:var(--ink);box-shadow:none}.home-hero .electrical-btn{background:var(--orange)}.btn.ghost,.secondary{border-color:currentColor!important;background:transparent!important;color:inherit!important}
.blueprint-card{position:absolute;z-index:1;width:min(42vw,580px);height:min(42vw,580px);left:-5vw;top:50%;transform:translateY(-48%) rotate(-7deg);border:1px solid rgba(255,255,255,.22);border-radius:50%;background:rgba(255,255,255,.025);box-shadow:none;opacity:.62;overflow:visible}
.blueprint-card:before{border-radius:50%;background-image:linear-gradient(rgba(255,255,255,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.08) 1px,transparent 1px);background-size:30px 30px}
.companion-orbit{inset:12%}.orbit-core{width:34%;height:34%;background:var(--acid);color:var(--ink);box-shadow:0 0 0 2vw rgba(216,255,62,.12);font-size:clamp(16px,2vw,28px)}.orb{border:0;border-radius:50%;background:var(--white);color:var(--ink);box-shadow:none}.orb.mech{background:var(--blue);color:white}.orb.elec{background:var(--orange);color:var(--ink)}.orb.arch{background:var(--violet);color:white}
.section{padding:clamp(84px,10vw,150px) 0;border:0}.section-soft{background:#e9e7e1;border:0}
.section-head{align-items:flex-start;margin-bottom:clamp(38px,6vw,78px);gap:40px}.section-head>div{max-width:1000px}.section-head h2{font-size:clamp(42px,6vw,88px);line-height:1.06;letter-spacing:-.045em;font-weight:900;margin:12px 0 0;text-wrap:balance}.section-head p{font-size:16px;line-height:1.8;color:inherit;opacity:.72;max-width:480px;padding-top:18px}
.kicker{display:block;color:var(--ink);font-weight:700}.section-dark .kicker,.real-samples .kicker{color:var(--white)}
body.motion-ready main>section:not(.hero):not(.discipline-hero){opacity:0;transform:translateY(70px);transition:opacity 1s var(--ease),transform 1s var(--ease)}
body.motion-ready main>section.is-revealed{opacity:1!important;transform:none!important}
.companion-grid{grid-template-columns:repeat(12,1fr);gap:14px}.companion-card{border:1px solid var(--ink);border-radius:0;min-height:430px;padding:30px;background:var(--white);box-shadow:none;flex-direction:column;justify-content:space-between;transition:transform .5s var(--ease),background .35s,color .35s}.companion-card:nth-child(1){grid-column:span 5;background:var(--blue);color:var(--white)}.companion-card:nth-child(2){grid-column:span 4;background:var(--orange)}.companion-card:nth-child(3){grid-column:span 3;background:var(--acid)}.companion-card:hover{transform:translateY(-10px) rotate(-1deg);box-shadow:none}.companion-card:nth-child(even):hover{transform:translateY(-10px) rotate(1deg)}.companion-icon{font-size:70px}.companion-card h3{font-size:clamp(24px,2.5vw,40px);line-height:1.2}.companion-card p{color:inherit;opacity:.75}.mechanical-card,.electrical-card,.architect-card{border-top:1px solid var(--ink)}.companion-card b,.electrical-card .service-code,.electrical-card b,.mechanical-card b,.architect-card b{color:inherit}
body:has(.home-hero) main>section:nth-of-type(3){background:var(--acid)}body:has(.home-hero) main>section:nth-of-type(6){background:var(--violet);color:var(--white)}body:has(.home-hero) main>section:nth-of-type(8){background:var(--orange)}
.steps{grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--ink)}.step{min-height:285px;border:0;border-left:1px solid var(--ink);border-radius:0;background:transparent;padding:28px;display:flex;flex-direction:column;justify-content:space-between}.step:last-child{border-left:0}.step>b{align-self:flex-start;color:inherit;border:1px solid currentColor;border-radius:50%;width:40px;height:40px;display:grid;place-items:center;padding:0}.step h3{font-size:clamp(18px,2vw,28px);line-height:1.3}.step p{font-size:14px;color:inherit;opacity:.7}
.seo-copy{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,8vw,130px);font-size:clamp(17px,1.5vw,22px);line-height:2}.seo-copy p:first-child{font-size:clamp(25px,3vw,42px);font-weight:600;line-height:1.55;margin-top:0}
.trust-grid,.deliverable-grid,.limit-grid{gap:0;border:1px solid currentColor}.trust-grid article,.deliverable-grid article,.limit-grid article,.two-col-info article{border:0;border-left:1px solid currentColor;border-radius:0;background:transparent;padding:clamp(24px,3vw,42px);min-height:270px}.trust-grid article:last-child,.deliverable-grid article:last-child,.limit-grid article:last-child{border-left:0}.trust-grid b{color:inherit}.trust-grid h3,.deliverable-grid h3,.limit-grid h3{font-size:clamp(21px,2vw,31px);line-height:1.3}.trust-grid p,.deliverable-grid p,.limit-grid p{opacity:.72}
.comparison-table{border:1px solid var(--ink);border-radius:0;background:transparent}.comparison-row span{padding:20px;border-bottom:1px solid var(--ink)}.comparison-row span+span{border-right:1px solid var(--ink)}.comparison-row.head{background:var(--ink);color:var(--white)}
.two-col-info{gap:0;border:1px solid var(--ink)}.two-col-info article{min-height:320px}.faq-list{gap:0;border-top:1px solid var(--ink)}.faq-list details{border:0;border-bottom:1px solid var(--ink);border-radius:0;background:transparent;padding:22px 0}.faq-list summary{font-size:clamp(18px,2vw,27px);list-style:none;padding-left:50px;position:relative}.faq-list summary:after{content:"+";position:absolute;left:4px;top:50%;transform:translateY(-50%);font-size:32px;font-weight:300;transition:.35s}.faq-list details[open] summary:after{transform:translateY(-50%) rotate(45deg)}.faq-list p{max-width:780px;font-size:16px;color:inherit;opacity:.7}
.blog-grid{grid-template-columns:repeat(3,1fr);gap:0;border:1px solid var(--ink)}.blog-card{border:0;border-left:1px solid var(--ink);border-radius:0;background:transparent;min-height:350px;padding:28px;display:flex;flex-direction:column}.blog-card:last-child{border-left:0}.blog-card:hover{transform:none;background:var(--acid);box-shadow:none}.blog-card h3,.blog-card h2{font-size:clamp(21px,2.4vw,34px);line-height:1.35}.blog-card p{color:inherit;opacity:.7}.blog-card small{margin-top:auto;color:inherit}.blog-tag{align-self:flex-start;border:1px solid var(--ink);border-radius:999px;background:transparent;color:inherit}
.real-samples{background:var(--ink)!important;color:var(--white);overflow:hidden}.real-samples .section-head{padding-inline:var(--pad)}.real-samples.container-wide{max-width:none;padding-left:0;padding-right:0}.real-samples>.container-wide{max-width:none;padding-left:0;padding-right:0}.real-samples>.container-wide>.section-head{max-width:1440px;margin-left:auto;margin-right:auto}
.sample-carousel{max-width:none;margin:0;padding:0 0 78px;touch-action:pan-y;cursor:grab}.sample-carousel.is-dragging{cursor:grabbing}.sample-stage{position:relative;min-height:min(72vw,920px);overflow:hidden;background:#111}.sample-carousel .sample-card{display:block;position:absolute;inset:0;margin:0;border:0;border-radius:0;background:var(--ink);visibility:hidden;pointer-events:none;opacity:1;z-index:0}.sample-carousel .sample-card.is-active{visibility:visible;pointer-events:auto;z-index:2;animation:revealSlide .95s var(--ease) both}.sample-carousel .sample-card.is-leaving{visibility:visible;z-index:1;animation:leaveSlide .95s var(--ease) both}.sample-open{height:calc(100% - 74px);aspect-ratio:auto;background:var(--ink);overflow:hidden}.sample-open img{width:100%;height:100%;object-fit:contain;background:var(--ink);transition:transform 1.2s var(--ease),filter .6s}.sample-card.is-active .sample-open img{transform:scale(1)}.sample-card.is-leaving .sample-open img{transform:scale(1.08);filter:brightness(.45)}
@keyframes revealSlide{from{clip-path:inset(0 0 0 100%);transform:scale(.96)}to{clip-path:inset(0);transform:none}}@keyframes leaveSlide{from{clip-path:inset(0)}to{clip-path:inset(0 100% 0 0)}}
.sample-card figcaption{height:74px;padding:16px var(--pad);border-top:1px solid rgba(255,255,255,.3);background:var(--ink);color:var(--white);border-radius:0}.sample-card figcaption b{font-size:18px}.sample-card figcaption span,.sample-card figcaption small{color:inherit;opacity:.62}.carousel-arrow{top:auto;bottom:12px;width:52px;height:52px;border:1px solid var(--white)!important;border-radius:50%!important;background:transparent!important;color:var(--white)!important;box-shadow:none!important;z-index:5}.carousel-arrow:hover{background:var(--acid)!important;color:var(--ink)!important;border-color:var(--acid)!important}.carousel-prev{right:var(--pad)}.carousel-next{left:var(--pad)}.carousel-counter{bottom:22px;background:transparent;color:var(--white);font-size:14px;letter-spacing:2px}.carousel-progress{position:absolute;right:calc(var(--pad) + 72px);left:calc(var(--pad) + 72px);bottom:37px;height:1px;background:rgba(255,255,255,.22)}.carousel-progress span{display:block;height:100%;background:var(--acid);transform-origin:right;transition:transform .8s var(--ease)}
.sample-lightbox{z-index:3000;background:rgba(0,0,0,.94);backdrop-filter:blur(16px);animation:modalIn .5s var(--ease)}.lightbox-content img{border:0;border-radius:0}.lightbox-close{background:var(--acid)!important;color:var(--ink)!important;border:0!important}
@keyframes modalIn{from{opacity:0;clip-path:circle(0 at 30px 30px)}to{opacity:1;clip-path:circle(150% at 30px 30px)}}
.discipline-hero{min-height:88svh;padding:135px 0 70px;background:var(--ink)!important;color:var(--white);border:0;display:flex;align-items:flex-end;overflow:hidden}.discipline-hero-grid{width:100%;grid-template-columns:minmax(0,1fr) minmax(250px,34%);gap:50px}.discipline-hero h1{font-size:clamp(52px,7vw,108px);line-height:1;letter-spacing:-.05em;margin:20px 0 25px;font-weight:900}.discipline-hero h2{color:inherit}.discipline-hero p{font-size:clamp(16px,1.4vw,21px);color:rgba(255,255,255,.72);max-width:720px}.discipline-visual{min-height:520px;border-radius:0;border:1px solid rgba(255,255,255,.3);box-shadow:none;background:var(--blue);position:relative;overflow:hidden}.electrical .discipline-visual{background:var(--orange)}.discipline-visual:before{content:"";position:absolute;width:65%;aspect-ratio:1;border:1px solid currentColor;border-radius:50%;animation:visualPulse 5s ease-in-out infinite}.discipline-visual .visual-symbol{font-size:clamp(100px,13vw,210px);position:relative;z-index:1}.discipline-visual span{position:relative;z-index:1;color:inherit}.electrical .btn.primary,.electrical button{background:var(--orange);color:var(--ink)}.mechanical .btn.primary,.mechanical button{background:var(--blue)}
@keyframes visualPulse{50%{transform:scale(1.25) rotate(20deg);border-radius:12%}}
.upload-layout{gap:0;border:1px solid var(--ink)}.upload-panel,.quick-spec,.spec-card{border:0;border-radius:0}.upload-panel{padding:clamp(24px,4vw,52px)}.quick-spec{padding:clamp(24px,4vw,52px);background:var(--ink)}.dropzone{border:1px solid var(--ink);border-radius:0;background:transparent;min-height:280px}.dropzone:hover{background:var(--acid);border-color:var(--ink)}.upload-form input[type=text],.upload-form input:not([type=file]),input,textarea{border-radius:0;border-color:var(--ink);background:transparent}.question-preview{gap:0;border:1px solid var(--ink)}.question-chip{border:0;border-left:1px solid var(--ink);border-radius:0;background:transparent;padding:22px}.question-chip:last-child{border-left:0}.question-chip span,.electrical .question-chip span{border-radius:50%;background:var(--ink);color:var(--white)}
.architect-coming{min-height:100svh;background:var(--ink);color:var(--white)}.architect-panel{min-height:100svh}.architect-copy h1{font-size:clamp(54px,8vw,116px);line-height:1;letter-spacing:-.05em}.construction-badge{background:var(--acid);border-radius:999px}.architect-art{border-radius:0;box-shadow:none;filter:saturate(.8) contrast(1.15)}.architect-info{background:var(--orange);color:var(--ink)}
.site-footer{background:var(--ink);color:var(--white);border:0}.footer-inner{max-width:none;padding:clamp(54px,8vw,110px) var(--pad);align-items:flex-end}.footer-inner strong{font-size:clamp(48px,8vw,120px);line-height:.8;letter-spacing:-.06em}.footer-inner p{color:inherit;opacity:.55}.footer-links{flex-wrap:wrap;justify-content:flex-end}.footer-links a{border:1px solid currentColor;border-radius:999px;padding:9px 15px}
.project-modal-card{border-radius:0;border:1px solid var(--ink);box-shadow:none}.project-modal-backdrop{background:rgba(0,0,0,.78)}
@media(max-width:980px){
  .top-nav{display:flex;position:fixed;inset:0;z-index:2;background:var(--acid);color:var(--ink);padding:120px var(--pad) 40px;flex-direction:column;align-items:stretch;transform:translateY(-105%);transition:.7s var(--ease)}.top-nav.is-open{transform:none}.top-nav a{font-size:clamp(24px,6vw,52px);border:0;border-bottom:1px solid var(--ink);border-radius:0;padding:13px 0}.nav-menu{display:block}.nav-cta{margin-right:auto}.hero-copy{grid-template-columns:1fr}.hero-lead,.hero-actions{grid-column:1}.blueprint-card{width:58vw;height:58vw;left:-15vw;top:38%}.companion-card:nth-child(n){grid-column:span 6}.steps{grid-template-columns:repeat(2,1fr)}.step:nth-child(2){border-left:0}.step:nth-child(-n+2){border-bottom:1px solid var(--ink)}.trust-grid{grid-template-columns:repeat(2,1fr)}.discipline-hero-grid{grid-template-columns:1fr}.discipline-visual{min-height:330px}.sample-stage{min-height:72vw}
}
@media(max-width:640px){
  .site-header{height:68px}.brand-copy small{display:none}.nav-cta{display:none}.hero{padding-top:105px}.hero-copy{gap:20px}.hero h1{font-size:clamp(48px,15vw,72px);min-height:2.8em}.hero-actions .btn{width:auto;flex:1}.blueprint-card{width:82vw;height:82vw;opacity:.38;top:34%}.section-head{flex-direction:column}.section-head h2{font-size:clamp(38px,12vw,58px)}.companion-card:nth-child(n){grid-column:1/-1;min-height:330px}.steps{grid-template-columns:1fr}.step,.step:nth-child(n){border:0;border-bottom:1px solid var(--ink);min-height:230px}.seo-copy{grid-template-columns:1fr}.trust-grid,.deliverable-grid,.limit-grid{grid-template-columns:1fr}.trust-grid article,.deliverable-grid article,.limit-grid article{border:0;border-bottom:1px solid currentColor}.two-col-info{grid-template-columns:1fr}.two-col-info article{border:0;border-bottom:1px solid var(--ink)}.blog-grid{grid-template-columns:1fr}.blog-card{border:0;border-bottom:1px solid var(--ink)}.sample-stage{min-height:78vw}.sample-open{height:calc(100% - 112px)}.sample-card figcaption{height:112px;align-items:flex-start}.carousel-progress{display:none}.carousel-prev{right:var(--pad)}.carousel-next{left:var(--pad)}.discipline-hero{padding-top:110px}.discipline-visual{min-height:260px}.discipline-hero h1{font-size:clamp(46px,14vw,68px)}.question-preview{grid-template-columns:1fr}.question-chip{border:0;border-bottom:1px solid var(--ink)}.comparison-row span{padding:13px 9px}.footer-inner{align-items:flex-start}.footer-links{justify-content:flex-start}
}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.001ms!important;animation-iteration-count:1!important;scroll-behavior:auto!important;transition-duration:.001ms!important}body.motion-ready main>section{opacity:1!important;transform:none!important}}


/* MONOCHROME UI 2026 — restrained black, white and neutral gray */
.orb,.companion-icon,.visual-symbol{filter:grayscale(1)}
.service-code,.text-link{color:currentColor}.sample-lightbox p{color:rgba(255,255,255,.72)}.status-dot{background:currentColor}
body{background:var(--paper)}
::selection{background:var(--ink);color:var(--white)}
.scroll-progress span{background:var(--white);mix-blend-mode:difference}
.site-header.is-scrolled{background:rgba(245,245,242,.92);border-bottom-color:rgba(8,8,8,.16)}
body:has(.home-hero) .site-header:not(.is-scrolled) .nav-cta,
body:has(.discipline-hero) .site-header:not(.is-scrolled) .nav-cta{background:var(--white);border-color:var(--white);color:var(--ink)}
.hero:before{background:radial-gradient(circle at calc(72% + var(--pointer-x,0px)) calc(38% + var(--pointer-y,0px)),rgba(255,255,255,.14),transparent 24%),radial-gradient(circle at 82% 68%,rgba(255,255,255,.07),transparent 22%),linear-gradient(120deg,transparent 0 56%,rgba(255,255,255,.12) 56% 56.2%,transparent 56.2%);opacity:1}
.btn.primary,.discipline-hero .btn.primary{background:var(--white);color:var(--ink);border-color:var(--white)}
.home-hero .electrical-btn{background:transparent;color:var(--white);border:1px solid rgba(255,255,255,.7)}
.home-hero .electrical-btn:hover{background:var(--white);color:var(--ink)}
.orbit-core{background:var(--white);color:var(--ink);box-shadow:0 0 0 2vw rgba(255,255,255,.09)}
.orb.mech{background:#202020;color:var(--white)}.orb.elec{background:#d9d9d6;color:var(--ink)}.orb.arch{background:#777;color:var(--white)}
.section-soft{background:#ececea}
.companion-card:nth-child(1){background:#111;color:var(--white)}
.companion-card:nth-child(2){background:#dededb;color:var(--ink)}
.companion-card:nth-child(3){background:var(--white);color:var(--ink)}
body:has(.home-hero) main>section:nth-of-type(3){background:var(--white)}
body:has(.home-hero) main>section:nth-of-type(6){background:#111;color:var(--white)}
body:has(.home-hero) main>section:nth-of-type(8){background:#dededb;color:var(--ink)}
.blog-card:hover{background:#dededb}
.carousel-arrow:hover{background:var(--white)!important;color:var(--ink)!important;border-color:var(--white)!important}
.carousel-progress span,.lightbox-close{background:var(--white)!important;color:var(--ink)!important}
.discipline-visual{background:#161616;color:var(--white)}
.electrical .discipline-visual{background:#e6e6e3;color:var(--ink)}
.electrical .btn.primary,.electrical button,.mechanical .btn.primary,.mechanical button{background:var(--ink);color:var(--white)}
.discipline-hero .btn.primary,.discipline-hero button{background:var(--white);color:var(--ink)}
.dropzone:hover{background:#e5e5e2}
.construction-badge{background:var(--white);color:var(--ink)}
.architect-art{filter:grayscale(1) contrast(1.12)}
.architect-info{background:#dededb;color:var(--ink)}
@media(max-width:980px){.top-nav{background:var(--white);color:var(--ink)}}


/* INTEGRATED HERO VISUAL 2026 */
.home-hero:before{
  inset:0;
  background:
    linear-gradient(90deg,rgba(8,8,8,.08) 0%,rgba(8,8,8,.22) 45%,rgba(8,8,8,.94) 100%),
    linear-gradient(0deg,rgba(8,8,8,.62) 0%,transparent 38%,rgba(8,8,8,.2) 100%),
    url('/static/hero-integrated-mep-v1.jpg');
  background-size:cover;
  background-position:left center;
  opacity:.92;
  filter:none;
  transition:transform .18s linear;
}
.home-hero .blueprint-card{display:none}
.home-hero h1{width:min(100%,1080px);margin-right:0;margin-left:auto;text-shadow:0 2px 30px rgba(0,0,0,.45)}
.home-hero .hero-lead{text-shadow:0 1px 18px rgba(0,0,0,.8)}
@media(max-width:980px){
  .home-hero:before{background-position:38% center;opacity:.8;background-size:auto 100%}
  .home-hero h1{width:100%;text-shadow:0 2px 24px rgba(0,0,0,.8)}
}
@media(max-width:620px){
  .home-hero:before{
    background:
      linear-gradient(0deg,rgba(8,8,8,.86) 0%,rgba(8,8,8,.42) 52%,rgba(8,8,8,.3) 100%),
      linear-gradient(90deg,rgba(8,8,8,.18),rgba(8,8,8,.62)),
      url('/static/hero-integrated-mep-v1.jpg');
    background-size:auto 100%;
    background-position:42% center;
    opacity:.72;
  }
}


/* HOME UX REFINEMENT 2026 */
body:has(.home-hero) .hero h1{font-size:clamp(46px,6.4vw,94px);line-height:1.02;letter-spacing:-.045em;min-height:2.05em;max-width:1000px}
body:has(.home-hero) .section{padding-top:clamp(72px,8vw,118px);padding-bottom:clamp(72px,8vw,118px)}
body:has(.home-hero) .section-head h2{font-size:clamp(34px,4.7vw,68px);line-height:1.1;letter-spacing:-.035em;max-width:980px}
body:has(.home-hero) .section-head p{font-size:15px;max-width:420px}
body:has(.home-hero) .hero-lead{font-size:clamp(15px,1.2vw,19px);max-width:650px}
body:has(.home-hero) .blog-card h3{font-size:clamp(20px,2vw,29px)}
body:has(.home-hero) .faq-list summary{font-size:clamp(17px,1.65vw,23px)}

.service-cta-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.service-cta-grid .service-cta{grid-column:auto;min-height:400px;padding:30px;border:1px solid var(--ink);border-radius:22px;overflow:hidden;display:flex;flex-direction:column;justify-content:space-between;isolation:isolate;transition:transform .45s var(--ease),box-shadow .45s var(--ease)}
.service-cta-grid .service-cta:after{content:"";position:absolute;inset:auto -20% -45% 25%;height:65%;border:1px solid currentColor;border-radius:50%;opacity:.13;z-index:-1;transition:transform .55s var(--ease)}
.service-cta-grid .service-cta:hover{transform:translateY(-8px);box-shadow:0 24px 60px rgba(0,0,0,.12)}
.service-cta-grid .service-cta:hover:after{transform:scale(1.18) translate(-3%,-8%)}
.service-cta .cta-top{display:flex;align-items:flex-start;justify-content:space-between;gap:20px}
.service-cta .service-code{font-size:10px;letter-spacing:2px;border:1px solid currentColor;border-radius:999px;padding:7px 10px;opacity:.72}
.service-cta .companion-icon{font-size:52px;line-height:1}
.service-cta .cta-body{margin-top:auto;padding-top:46px}
.service-cta .cta-body h3{font-size:clamp(28px,2.4vw,38px);margin:0 0 16px}
.service-cta .cta-body p{font-size:14px;line-height:1.85;max-width:360px;margin:0}
.service-cta .cta-link{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-top:30px;padding-top:18px;border-top:1px solid currentColor;font-size:13px;font-weight:800}
.service-cta .cta-arrow{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;background:var(--ink);color:var(--white);font-style:normal;font-size:22px;transition:transform .4s var(--ease)}
.mechanical-card .cta-arrow{background:var(--white);color:var(--ink)}
.service-cta:hover .cta-arrow{transform:rotate(-45deg) scale(1.08)}

.process-section{overflow:hidden}
.process-infographic{position:relative;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;padding-top:6px}
.process-infographic:before{content:"";position:absolute;top:55px;right:8%;left:8%;height:1px;background:var(--ink);opacity:.38}
.process-node{position:relative;display:grid;grid-template-rows:108px auto;min-width:0}
.process-marker{position:relative;z-index:2;width:98px;height:98px;justify-self:center;border:1px solid var(--ink);border-radius:50%;background:var(--paper);display:grid;place-content:center;text-align:center;transition:transform .4s var(--ease),background .3s,color .3s}
.process-node:nth-child(even) .process-marker{background:var(--ink);color:var(--white)}
.process-node:hover .process-marker{transform:scale(1.08) rotate(-4deg)}
.process-marker span{font-size:28px;font-weight:900;line-height:1}.process-marker small{font-size:8px;letter-spacing:1.6px;margin-top:7px}
.process-card{min-height:245px;border:1px solid rgba(8,8,8,.35);background:rgba(255,255,255,.48);padding:26px 24px;display:flex;flex-direction:column;transition:background .35s,transform .35s}
.process-node:hover .process-card{background:var(--white);transform:translateY(-5px)}
.process-card h3{font-size:clamp(20px,1.8vw,27px);margin:0 0 14px}.process-card p{font-size:14px;line-height:1.8;opacity:.72;margin:0}.process-card em{margin-top:auto;padding-top:22px;font-size:9px;letter-spacing:1.7px;font-style:normal;opacity:.5}

.comparison-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.comparison-card{border:1px solid var(--ink);border-radius:20px;padding:26px;background:var(--white);min-height:285px;display:flex;flex-direction:column;transition:transform .4s var(--ease),box-shadow .4s var(--ease)}
.comparison-card:hover{transform:translateY(-6px);box-shadow:0 22px 55px rgba(0,0,0,.1)}
.comparison-card-head{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-bottom:20px;border-bottom:1px solid currentColor}
.comparison-card-head>span{width:38px;height:38px;border:1px solid currentColor;border-radius:50%;display:grid;place-items:center;font-size:11px}.comparison-card-head h3{font-size:clamp(21px,2vw,28px);margin:0}
.comparison-pair{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:auto;padding-top:24px}
.comparison-pair>div{padding:18px;border:1px solid rgba(8,8,8,.18);border-radius:14px;display:flex;flex-direction:column;gap:9px}
.comparison-pair small{font-size:10px;letter-spacing:.8px;opacity:.55}.comparison-pair strong{font-size:14px;line-height:1.65}
.comparison-pair .engi-choice{background:var(--ink);color:var(--white);border-color:var(--ink)}
.comparison-card-dark{background:var(--ink);color:var(--white)}
.comparison-card-dark .comparison-pair>div{border-color:rgba(255,255,255,.24)}.comparison-card-dark .comparison-pair .engi-choice{background:var(--white);color:var(--ink);border-color:var(--white)}

body:has(.home-hero) .trust-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;border:0}
body:has(.home-hero) .trust-grid article{border:1px solid var(--ink);border-radius:18px;min-height:225px;padding:30px;background:var(--white)}
body:has(.home-hero) .trust-grid article:nth-child(4n+1),body:has(.home-hero) .trust-grid article:nth-child(4n+4){background:var(--ink);color:var(--white)}
body:has(.home-hero) .two-col-info{gap:16px;border:0}
body:has(.home-hero) .two-col-info article{border:1px solid var(--ink);border-radius:18px;min-height:290px;background:var(--white)}
body:has(.home-hero) .two-col-info article:last-child{background:var(--ink);color:var(--white)}

@media(max-width:980px){
  .service-cta-grid{grid-template-columns:1fr 1fr}.service-cta-grid .service-cta{grid-column:auto}.service-cta-grid .service-cta:last-child{grid-column:1/-1;min-height:330px}
  .process-infographic{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 14px}.process-infographic:before{display:none}
}
@media(max-width:620px){
  body:has(.home-hero) .hero h1{font-size:clamp(42px,12.8vw,54px);line-height:1.04;min-height:2.6em}
  body:has(.home-hero) .section-head h2{font-size:clamp(32px,10.5vw,44px)}
  body:has(.home-hero) .section{padding-top:66px;padding-bottom:66px}
  .service-cta-grid{grid-template-columns:1fr}.service-cta-grid .service-cta,.service-cta-grid .service-cta:last-child{grid-column:1;min-height:340px;padding:24px;border-radius:18px}
  .service-cta .cta-body{padding-top:34px}.service-cta .cta-body h3{font-size:29px}
  .process-infographic{grid-template-columns:1fr;gap:0;padding:0}.process-infographic:before{display:block;top:40px;bottom:40px;right:39px;left:auto;width:1px;height:auto}
  .process-node{grid-template-columns:78px 1fr;grid-template-rows:auto;gap:14px;padding-bottom:18px}.process-marker{width:78px;height:78px;justify-self:start}.process-marker span{font-size:22px}.process-card{min-height:190px;padding:22px 20px}.process-card h3{font-size:22px}
  .comparison-cards{grid-template-columns:1fr}.comparison-card{min-height:260px;padding:22px;border-radius:16px}.comparison-pair{grid-template-columns:1fr}.comparison-pair>div{padding:15px}
  body:has(.home-hero) .trust-grid{grid-template-columns:1fr}
}


/* HOME MOBILE GUTTERS 2026 */
@media(max-width:620px){
  body:has(.home-hero) .section.container-wide:not(.real-samples){
    padding-left:var(--pad);
    padding-right:var(--pad);
  }
}