/* ============================================================
   HOT WINTER — "Premium Engineering Experience"
   Per internal brand deck: dark #0E1116, orange #FF6B2B accent,
   glassmorphism, orange glow, big geometric type (Inter).
   ============================================================ */
:root{
  --bg:#0E1116; --panel:#1A1D24; --panel-2:#20242d;
  --txt:#FFFFFF; --mut:#9CA3AF; --mut-2:#6B7280;
  --line:rgba(255,255,255,.08); --line-2:rgba(255,255,255,.16);
  --glass:rgba(255,255,255,.045);
  --accent:#FF6B2B; --accent-2:#FF8A57; --accent-deep:#E8531A;
  --glow:0 0 44px rgba(255,107,43,.4);
  --maxw:1240px; --pad:clamp(20px,5vw,56px);
  --font:"Inter",system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:78px}
body{margin:0;font-family:var(--font);background:var(--bg);color:var(--txt);line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3{margin:0;font-weight:700;letter-spacing:-.02em;line-height:1.1}
p{margin:0 0 1.1rem}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding-inline:var(--pad)}
.ico{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.skip-link{position:absolute;left:-999px;top:0;background:var(--accent);color:#fff;padding:10px 16px;z-index:300}
.skip-link:focus{left:0}

/* ---------- labels & titles ---------- */
.section-label{font-size:.78rem;font-weight:600;text-transform:uppercase;letter-spacing:.18em;color:var(--accent);margin:0 0 1.4rem;display:inline-flex;align-items:center;gap:11px}
.section-label::before{content:"";width:30px;height:2px;background:var(--accent)}
.section{padding-top:clamp(48px,5.5vw,84px);padding-bottom:clamp(64px,8vw,120px)}
.section-head{margin-bottom:clamp(40px,6vw,72px);max-width:760px}
.section-title{font-size:clamp(2rem,4.6vw,3.4rem);font-weight:700;letter-spacing:-.03em}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.55em;font-family:var(--font);font-weight:600;font-size:.95rem;padding:.85em 1.7em;border-radius:10px;border:1px solid transparent;cursor:pointer;transition:transform .2s,box-shadow .3s,background .2s,color .2s,border-color .2s}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 0 0 rgba(255,107,43,0)}
.btn-primary:hover{background:var(--accent-2);transform:translateY(-2px) scale(1.02);box-shadow:var(--glow)}
.btn-outline{background:transparent;color:var(--txt);border-color:var(--line-2)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent)}
.btn-lg{font-size:1.05rem;padding:1em 2.1em;border-radius:12px}

/* ---------- header ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:200;background:transparent;border-bottom:1px solid transparent;transition:background .3s,border-color .3s,backdrop-filter .3s}
.site-header.scrolled{background:rgba(14,17,22,.85);backdrop-filter:blur(14px);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;gap:28px;height:76px}
.brand-logo{height:46px;width:auto}
.nav{display:flex;gap:30px;margin-left:auto}
.nav a{font-size:.92rem;font-weight:500;color:rgba(255,255,255,.8);position:relative;padding:4px 0;transition:color .2s}
.nav a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--accent);transition:width .25s}
.nav a:hover{color:#fff}.nav a:hover::after{width:100%}
.header-actions{display:flex;align-items:center;gap:20px;margin-left:auto}
.nav+.header-actions{margin-left:0}
.header-phone{font-weight:600;font-size:.92rem;color:#fff}.header-phone:hover{color:var(--accent)}
.burger{display:none;flex-direction:column;gap:5px;width:44px;height:44px;border:1px solid var(--line-2);border-radius:10px;background:rgba(255,255,255,.04);cursor:pointer;align-items:center;justify-content:center}
.burger span{width:20px;height:2px;background:#fff;transition:.25s}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- hero ---------- */
.hero--photo{position:relative;min-height:100vh;display:flex;align-items:center;overflow:hidden;background:var(--bg)}
.hero-bg{position:absolute;inset:0;background:url("assets/hero.jpg") center/cover no-repeat;background-image:image-set(url("assets/hero.webp") type("image/webp"),url("assets/hero.jpg") type("image/jpeg"))}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(14,17,22,.92),rgba(14,17,22,.62) 50%,rgba(14,17,22,.35)),linear-gradient(180deg,rgba(14,17,22,.7),transparent 28%,rgba(14,17,22,.55))}
.hero-inner{position:relative;z-index:2;max-width:900px}
.hero-title{font-size:clamp(2.4rem,6vw,5rem);font-weight:800;letter-spacing:-.035em;line-height:1.04}
.hero-title em{font-style:normal;color:var(--accent)}
.hero-cta{margin-top:2.4rem;display:flex;flex-wrap:wrap;gap:16px}
.scroll-ind{position:absolute;bottom:34px;left:50%;transform:translateX(-50%);z-index:3;width:26px;height:42px;border:2px solid rgba(255,255,255,.4);border-radius:14px;display:flex;justify-content:center;padding-top:7px}
.scroll-ind span{width:4px;height:8px;border-radius:3px;background:var(--accent);animation:scrolldot 1.6s ease-in-out infinite}
@keyframes scrolldot{0%{opacity:0;transform:translateY(-4px)}40%{opacity:1}80%{opacity:0;transform:translateY(10px)}100%{opacity:0}}

/* ---------- values (glass tiles) ---------- */
.values{padding-top:clamp(56px,7vw,90px)}
.values-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.value-tile{background:var(--glass);border:1px solid var(--line);border-radius:16px;padding:34px 30px;backdrop-filter:blur(10px);transition:border-color .3s,transform .3s,box-shadow .3s}
.value-tile:hover{border-color:var(--line-2);transform:translateY(-4px)}
.value-ico{display:inline-grid;place-items:center;width:52px;height:52px;border-radius:12px;background:rgba(255,107,43,.12);color:var(--accent);margin-bottom:20px}
.value-ico .ico{width:26px;height:26px}
.value-tile h3{font-size:1.2rem;font-weight:600}

/* ---------- about ---------- */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(34px,5vw,72px);align-items:center}
.about-text .lead-para{font-size:1.18rem;color:#d7dbe1;max-width:48ch;line-height:1.62}
.about-text .btn{margin-top:1.6rem}
.about-frame{position:relative;border:1px solid var(--line);border-radius:18px;overflow:hidden;aspect-ratio:4/3;box-shadow:0 40px 80px -50px #000}
.about-frame::after{content:"";position:absolute;right:-1px;top:-1px;width:84px;height:84px;border-top:2px solid var(--accent);border-right:2px solid var(--accent);border-radius:0 18px 0 0}
.about-photo{width:100%;height:100%;object-fit:cover}

/* ---------- equipment (glass cards) ---------- */
.eq-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:20px}
.eq-item{display:flex;flex-direction:column;background:var(--panel);border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:border-color .3s,transform .3s,box-shadow .3s}
.eq-item:hover{border-color:rgba(255,107,43,.5);transform:translateY(-6px);box-shadow:0 30px 60px -34px rgba(255,107,43,.4)}
.eq-media{position:relative;aspect-ratio:16/11;background-size:cover;background-position:center;transition:transform .6s cubic-bezier(.2,.6,.2,1)}
.eq-item:hover .eq-media{transform:scale(1.07)}
.eq-media::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(14,17,22,.6),transparent 55%)}
.eq-media--placeholder{display:grid;place-items:center;background:radial-gradient(130% 100% at 50% 42%,rgba(255,107,43,.20),var(--panel-2) 68%)}
.eq-media--placeholder::after{background:none}
.eq-media--placeholder .eq-ico{filter:drop-shadow(0 0 20px rgba(255,107,43,.55))}
.eq-media--placeholder .eq-ico .ico{width:48px;height:48px}
.eq-ico{position:relative;z-index:1;color:var(--accent)}.eq-ico .ico{width:32px;height:32px}
.eq-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex-grow:1}
.eq-item h3{font-size:1.12rem;font-weight:600;line-height:1.32}
.eq-more{margin-top:auto;padding-top:18px;display:inline-flex;align-items:center;gap:8px;font-size:.78rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--accent)}
.eq-more .ico{width:15px;height:15px;transition:transform .2s}
.eq-item:hover .eq-more .ico{transform:translateX(4px)}

/* ---------- services: zigzag banners ---------- */
.zz{display:flex;flex-direction:column;gap:clamp(48px,7vw,100px)}
.zz-band{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(32px,5vw,76px);align-items:center}
.zz-band:nth-child(even) .zz-media{order:2}
.zz-media{aspect-ratio:4/3;border-radius:18px;background-size:cover;background-position:center;border:1px solid var(--line);overflow:hidden;position:relative;box-shadow:0 40px 80px -50px #000;transition:border-color .3s,box-shadow .3s,transform .3s}
.zz-media::after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(14,17,22,.3),transparent 55%)}
.zz-band:hover .zz-media{border-color:rgba(255,107,43,.5);box-shadow:0 40px 80px -44px rgba(255,107,43,.35);transform:translateY(-4px)}
.zz-num{display:block;font-size:2.2rem;font-weight:800;color:var(--accent);line-height:1;margin-bottom:14px;letter-spacing:-.02em}
.zz-text h3{font-size:clamp(1.6rem,2.8vw,2.4rem);font-weight:700;letter-spacing:-.025em;margin-bottom:14px;line-height:1.1}
.zz-text p{color:var(--mut);font-size:1.05rem;line-height:1.62;max-width:46ch;margin-bottom:26px}

/* ---------- lead / final CTA ---------- */
.lead{position:relative}
.lead .section-title{font-size:clamp(2.2rem,5vw,3.8rem);max-width:16ch}
.lead-para{color:var(--mut);font-size:1.12rem;max-width:52ch}
.lead-form{margin-top:2.8rem;max-width:660px;background:var(--glass);border:1px solid var(--line);border-radius:20px;padding:clamp(26px,4vw,42px);backdrop-filter:blur(12px)}
.form-heading{font-size:1.4rem;font-weight:700;margin-bottom:1.8rem}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.field{margin-bottom:22px}
.field label{display:block;font-size:.76rem;font-weight:600;text-transform:uppercase;letter-spacing:.1em;color:var(--mut);margin-bottom:10px}
.field label span{color:var(--accent)}
.field input,.field textarea{width:100%;font-family:var(--font);font-size:1rem;color:#fff;padding:13px 16px;border:1px solid var(--line-2);border-radius:10px;background:rgba(255,255,255,.03);transition:border-color .2s,box-shadow .2s;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--mut-2)}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,107,43,.15)}
.hp{position:absolute;left:-9999px;opacity:0}
.form-status{margin:16px 0 0;font-size:.94rem;font-weight:600;min-height:1.2em}
.form-status.ok{color:#46d18a}.form-status.err{color:var(--accent)}

/* ---------- contacts ---------- */
.contacts-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,4vw,56px);align-items:start}
.contact-list{margin:0;border-top:1px solid var(--line)}
.contact-list>div{display:grid;grid-template-columns:150px 1fr;gap:20px;padding:24px 0;border-bottom:1px solid var(--line)}
.contact-list dt{font-size:.76rem;font-weight:600;text-transform:uppercase;letter-spacing:.1em;color:var(--mut);margin:0}
.contact-list dd{margin:0;font-size:1.08rem;color:#fff}
.contact-list dd a:hover{color:var(--accent)}
.contact-list dd span{display:block;color:var(--mut);font-size:.9rem;margin-top:4px}
.map-wrap{border:1px solid var(--line);border-radius:16px;overflow:hidden;min-height:360px}
.map-wrap iframe{width:100%;height:100%;min-height:360px;border:0;filter:invert(.92) hue-rotate(180deg) saturate(.65) contrast(.92)}

/* ---------- footer ---------- */
.site-footer{background:#0a0d11;border-top:1px solid var(--line)}
.footer-inner{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:44px;padding-block:clamp(56px,7vw,84px) 40px}
.footer-logo{height:62px;width:auto;margin-bottom:20px}
.footer-brand p{color:var(--mut-2);max-width:40ch;font-size:.94rem}
.footer-nav{display:flex;flex-direction:column;gap:13px}
.footer-nav a{color:var(--mut);font-size:.95rem}.footer-nav a:hover{color:#fff}
.footer-social-title{display:block;font-weight:600;margin-bottom:16px}
.social-row{display:flex;gap:12px}
.social-row a{width:44px;height:44px;border:1px solid var(--line);border-radius:11px;background:var(--glass);display:grid;place-items:center;color:var(--mut);transition:.25s}
.social-row a:hover{color:#fff;border-color:var(--accent);box-shadow:var(--glow)}
.thermo-hair{display:none}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;border-top:1px solid var(--line);padding-block:24px;font-size:.88rem;color:var(--mut-2)}
.footer-bottom a{color:var(--mut);font-weight:600}.footer-bottom a:hover{color:#fff}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- focus ---------- */
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}

/* ---------- responsive ---------- */
@media (max-width:920px){
  .about-grid,.contacts-grid,.zz-band{grid-template-columns:1fr}
  .zz-band:nth-child(even) .zz-media{order:-1}
  .about-frame{order:-1}
  .values-grid{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr 1fr}
  .zz-media{aspect-ratio:16/10}
}
@media (max-width:760px){
  .nav,.header-phone,.header-cta{display:none}
  .burger{display:flex}
  .header-inner{justify-content:space-between}
  .nav.open{display:flex;flex-direction:column;gap:0;position:fixed;top:76px;left:0;right:0;background:rgba(14,17,22,.97);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);padding:8px var(--pad) 20px;z-index:150}
  .nav.open a{padding:15px 0;border-bottom:1px solid var(--line);font-size:1.05rem;color:#fff}
  .nav.open a::after{display:none}
  .field-row{grid-template-columns:1fr;gap:0}
  .contact-list>div{grid-template-columns:1fr;gap:6px}
  .footer-inner{grid-template-columns:1fr}
  .hero-overlay{background:linear-gradient(180deg,rgba(14,17,22,.82),rgba(14,17,22,.66) 45%,rgba(14,17,22,.6))}
  .hero-bg{background-position:62% center}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}

/* stats — big numbers (deck slide 3) */
.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(34px,5vw,60px) 24px;margin-top:8px}
.stat{text-align:center;padding:6px}
.stat-num{display:block;font-size:clamp(3rem,6vw,4.6rem);font-weight:800;letter-spacing:-.04em;line-height:1;color:#fff;font-variant-numeric:tabular-nums}
.stat-num.accent{color:var(--accent)}
.stat-label{display:block;margin-top:16px;font-size:1.18rem;font-weight:600}
.stat-desc{display:block;margin-top:9px;color:var(--mut);font-size:.92rem;line-height:1.5;max-width:32ch;margin-inline:auto}
@media (max-width:820px){.stats-grid{grid-template-columns:1fr 1fr;gap:40px 20px}}
@media (max-width:520px){.stats-grid{grid-template-columns:1fr}}

/* hero — animated house scene */
.hero--house{position:relative;min-height:100vh;display:flex;align-items:center;overflow:hidden;background:radial-gradient(120% 90% at 74% 42%,#161d28 0%,#0E1116 62%)}
.hero-scene{position:absolute;right:0;bottom:0;width:min(50%,680px);height:90%;display:flex;align-items:flex-end;justify-content:flex-end;pointer-events:none}
.hero-scene svg{width:100%;height:100%}
.hero--house .hero-overlay{position:absolute;inset:0;background:linear-gradient(90deg,#0E1116 4%,rgba(14,17,22,.82) 36%,rgba(14,17,22,.18) 56%,transparent 66%)}
.hero--house .hero-inner{position:relative;z-index:2;max-width:var(--maxw)}
.hero--house .hero-title{max-width:600px;font-size:clamp(2rem,4.4vw,3.7rem)}
.hero--house .hero-cta{max-width:600px}
/* hero engineering cutaway */
.hero-scene .struct{opacity:0;animation:hsFade .9s ease forwards}
.hero-scene .grid{animation:hsFade 1.2s ease .1s forwards}
@keyframes hsFade{to{opacity:1}}
.hero-scene .draw{stroke-dasharray:var(--len);stroke-dashoffset:var(--len);animation:hsDraw 1.3s ease forwards;animation-delay:var(--d,.9s)}
@keyframes hsDraw{to{stroke-dashoffset:0}}
.hero-scene .flow{animation:hsFlowOn .6s ease 2.4s forwards}
.hero-scene .flow .fl{animation:hsFlow 1.6s linear 2.4s infinite}
.hero-scene .uf{animation:hsFade 1s ease 2.2s forwards}
.hero-scene .uf-flow{animation:hsFlowOn2 .6s ease 2.6s forwards,hsFlow 2s linear 2.6s infinite}
.hero-scene .water-flow{animation:hsFlowOn2 .6s ease 2.8s forwards,hsFlow 2.4s linear 2.8s infinite}
.hero-scene .air{opacity:0;animation:hsFlowOn3 .6s ease 2.6s forwards,hsFlow 1.4s linear 2.6s infinite}
.hero-scene .pv-flow{animation:hsFlowOn2 .6s ease 2.8s forwards,hsFlow 2.2s linear 2.8s infinite}
.hero-scene .pv-glow{animation:hsPv 4s ease-in-out 2.6s infinite}
.hero-scene .pv-rays{transform-box:view-box;transform-origin:92px 150px;animation:hsSpin 30s linear infinite}
@keyframes hsPv{0%,100%{opacity:.22}50%{opacity:.68}}
@keyframes hsFlowOn{to{opacity:.9}}@keyframes hsFlowOn2{to{opacity:.85}}@keyframes hsFlowOn3{to{opacity:.7}}
@keyframes hsFlow{to{stroke-dashoffset:-30}}
.hero-scene .rad .rg{animation:hsWarm 3.4s ease-in-out 2.6s infinite}
.hero-scene .r2 .rg{animation-delay:3s}.hero-scene .r3 .rg{animation-delay:3.4s}
@keyframes hsWarm{0%,100%{opacity:.22}50%{opacity:.65}}
.hero-scene .hpfan{transform-box:view-box;transform-origin:588px 430px;animation:hsSpin 3.4s linear 2s infinite}
.hero-scene .vfan-b{transform-box:view-box;transform-origin:350px 137px;animation:hsSpin 2.2s linear 2.2s infinite}
@keyframes hsSpin{to{transform:rotate(360deg)}}
.hero-scene .win{animation:hsWin 1s ease forwards}
.hero-scene .w1{animation-delay:1.7s}.hero-scene .w2{animation-delay:2s}.hero-scene .w3{animation-delay:2.3s}
@keyframes hsWin{0%{opacity:0}60%{opacity:.5}75%{opacity:.3}100%{opacity:.92}}
.hero-scene .smoke circle{transform-box:fill-box;transform-origin:center;animation:hsSmoke 5s ease-in-out infinite}
.hero-scene .s1{animation-delay:3s}.hero-scene .s2{animation-delay:4.6s}.hero-scene .s3{animation-delay:6.2s}
@keyframes hsSmoke{0%{opacity:0;transform:translateY(0) scale(.7)}25%{opacity:.32}100%{opacity:0;transform:translateY(-46px) scale(1.5)}}
.hero-scene .tpulse{transform-box:fill-box;transform-origin:center;animation:hsTp 3s ease-out 3s infinite}
@keyframes hsTp{0%{opacity:.55;transform:scale(1)}100%{opacity:0;transform:scale(2.4)}}
@media (max-width:920px){
  .hero-scene{width:min(82%,560px);opacity:.45;right:-8%}
  .hero--house .hero-overlay{background:linear-gradient(180deg,rgba(14,17,22,.55),rgba(14,17,22,.85) 55%,#0E1116)}
}
@media (prefers-reduced-motion:reduce){
  .hero-scene .struct,.hero-scene .grid,.hero-scene .uf{opacity:1;animation:none}
  .hero-scene .draw{animation:none}
  .hero-scene .win{opacity:.92;animation:none}
  .hero-scene .rad .rg{opacity:.5;animation:none}
  .hero-scene .flow,.hero-scene .uf-flow,.hero-scene .water-flow,.hero-scene .air,.hero-scene .pv-flow,.hero-scene .pv-glow,.hero-scene .smoke{display:none}
  .hero-scene .hpfan,.hero-scene .vfan-b,.hero-scene .tpulse,.hero-scene .pv-rays{animation:none}
}

/* interactive systems house (scroll-driven) */
.systems{position:relative;background:#0b0f14;height:600vh}
.systems-sticky{position:sticky;top:0;height:100vh;display:flex;align-items:center;overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.systems-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(28px,5vw,68px);align-items:center;width:100%}
.systems-stage{display:flex;justify-content:center}
.systems-stage svg{width:100%;height:auto;max-height:72vh}
.systems-title{font-size:clamp(1.6rem,2.8vw,2.4rem);font-weight:700;letter-spacing:-.025em;margin:0 0 2rem;max-width:18ch}
.systems-track{display:grid;grid-template-columns:auto 1fr;gap:22px}
.sys-progress{position:relative;width:3px;border-radius:3px;background:var(--line);overflow:hidden}
#sys-progress-bar{position:absolute;left:0;top:0;width:100%;height:0;background:var(--accent);transition:height .15s linear}
.systems-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:14px}
.systems-list li{display:flex;align-items:center;gap:14px;color:var(--mut-2);font-size:1.18rem;font-weight:600;transition:color .35s,transform .35s;opacity:.55}
.systems-list li .sysli-n{font-size:.82rem;font-weight:700;font-variant-numeric:tabular-nums;color:var(--mut-2);transition:color .35s}
.systems-list li.active{color:#fff;opacity:1;transform:translateX(6px)}
.systems-list li.active .sysli-n{color:var(--accent)}
.systems-desc{margin:2rem 0 0;color:var(--mut);font-size:1.05rem;min-height:3em;max-width:42ch}
/* system colors */
.sys{opacity:.14;transition:opacity .6s ease,filter .6s ease}
.sys.active{opacity:1;filter:drop-shadow(0 0 7px currentColor)}
.sys-heat{color:#ff6b2b}.sys-water{color:#3a8ee6}.sys-drain{color:#9aa4b0}
.sys-vent{color:#36c2e0}.sys-ac{color:#5fb0ff}.sys-auto{color:#ffc24d}
.sys-solar{color:#ffb43a}
/* static (reduced motion) */
.systems.static{height:auto}
.systems.static .systems-sticky{position:static;height:auto;padding-block:clamp(64px,9vw,120px)}
.systems.static .sys{opacity:.3}
.systems.static .sys.active{opacity:1;filter:drop-shadow(0 0 7px currentColor)}
.systems.static .systems-list li{cursor:pointer;-webkit-tap-highlight-color:transparent}
.systems.static .systems-list li:active{transform:translateX(4px)}
.systems.static .systems-list li:focus-visible{outline:2px solid var(--accent);outline-offset:6px;border-radius:6px}
@media (max-width:920px){
  .systems{height:auto}
  .systems-sticky{position:static;height:auto;padding-block:clamp(56px,9vw,90px)}
  .systems-inner{grid-template-columns:1fr;gap:22px}
  .systems-stage{position:sticky;top:76px;z-index:2;background:#0b0f14;padding:10px 0;border-bottom:1px solid var(--line);box-shadow:0 16px 24px -18px #000}
  .systems-stage svg{max-height:34vh;max-width:320px}
  .sys{opacity:.6}
}

/* process — serpentine (snake) steps */
.snake{position:relative}
.snake-line{position:absolute;inset:0;width:100%;height:100%;z-index:0;pointer-events:none}
.snake-row{position:relative;z-index:1;display:flex;gap:22px;margin-bottom:22px}
.snake-row:last-child{margin-bottom:0}
.snake-row.rev{flex-direction:row-reverse}
.snake-row>.step{flex:1}
.step{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:26px 24px;transition:border-color .3s,transform .3s,box-shadow .3s}
.step:hover{border-color:rgba(255,107,43,.5);transform:translateY(-4px);box-shadow:0 24px 50px -32px rgba(255,107,43,.35)}
.step-n{display:block;font-size:1.5rem;font-weight:800;letter-spacing:-.02em;color:var(--accent);margin-bottom:12px;line-height:1}
.step h3{font-size:1.18rem;font-weight:600;margin-bottom:10px}
.step p{color:var(--mut);font-size:.95rem;line-height:1.55;margin:0}
@media (max-width:920px){
  .snake-line{display:none}
  .snake-row,.snake-row.rev{flex-direction:column;gap:0;margin:0;padding-left:30px;border-left:2px solid var(--line)}
  .snake-row>.step{margin-bottom:18px;position:relative}
  .snake-row>.step::before{content:"";position:absolute;left:-37px;top:30px;width:12px;height:12px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px var(--bg)}
  .snake-row:last-child .step:last-child{margin-bottom:0}
}

/* equipment as horizontal carousel (space-saving) */
.car-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;max-width:none}
.car-nav-group{display:flex;gap:10px;flex:0 0 auto;padding-bottom:6px}
.car-nav{width:50px;height:50px;border-radius:50%;border:1px solid var(--line-2);background:var(--glass);color:#fff;cursor:pointer;display:grid;place-items:center;transition:border-color .2s,color .2s,background .2s}
.car-nav:hover{border-color:var(--accent);color:var(--accent)}
.car-nav .ico{width:22px;height:22px;stroke-width:2}
.car-wrap{position:relative;margin-inline:calc(-1*var(--pad))}
.car-wrap::before,.car-wrap::after{content:"";position:absolute;top:0;bottom:14px;width:70px;z-index:2;pointer-events:none;transition:opacity .3s}
.car-wrap::before{left:0;background:linear-gradient(90deg,var(--bg),transparent)}
.car-wrap::after{right:0;background:linear-gradient(270deg,var(--bg),transparent)}
.car-wrap.at-start::before{opacity:0}
.car-wrap.at-end::after{opacity:0}
.eq-grid{display:flex;grid-template-columns:none;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;scroll-behavior:smooth;padding:4px var(--pad) 14px;-ms-overflow-style:none;scrollbar-width:none}
.eq-grid::-webkit-scrollbar{display:none}
.eq-item{flex:0 0 300px;scroll-snap-align:start}
.car-dots{display:flex;justify-content:center;gap:9px;margin-top:24px}
.car-dots button{width:8px;height:8px;border-radius:50%;border:0;padding:0;background:var(--line-2);cursor:pointer;transition:width .25s,background .25s,border-radius .25s}
.car-dots button:hover{background:var(--mut)}
.car-dots button.active{background:var(--accent);width:26px;border-radius:5px}
@media (max-width:760px){
  .eq-item{flex:0 0 78vw}
  .car-nav-group{display:none}
}

/* generic carousel track + service cards */
.car-track{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;scroll-behavior:smooth;padding:4px var(--pad) 14px;-ms-overflow-style:none;scrollbar-width:none}
.car-track::-webkit-scrollbar{display:none}
.car-track>*{scroll-snap-align:start}
.eq-item{flex:0 0 300px}
.sv-card{flex:0 0 350px;display:flex;flex-direction:column;background:var(--panel);border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:border-color .3s,transform .3s,box-shadow .3s}
.sv-card:hover{border-color:rgba(255,107,43,.5);transform:translateY(-6px);box-shadow:0 30px 60px -34px rgba(255,107,43,.4)}
.sv-card-media{position:relative;aspect-ratio:16/10;background-size:cover;background-position:center}
.sv-card-media::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(14,17,22,.55),transparent 55%)}
.sv-card-n{position:absolute;left:16px;bottom:12px;z-index:1;font-size:1.5rem;font-weight:800;color:#fff}
.sv-card-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex-grow:1}
.sv-card-body h3{font-size:1.18rem;font-weight:600;margin-bottom:10px;line-height:1.3}
.sv-card-body p{color:var(--mut);font-size:.94rem;line-height:1.55;margin:0}
.sv-card-more{margin-top:auto;padding-top:18px;display:inline-flex;align-items:center;gap:8px;font-size:.78rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--accent)}
.sv-card-more .ico{width:15px;height:15px;transition:transform .2s}
.sv-card:hover .sv-card-more .ico{transform:translateX(4px)}
@media (max-width:760px){.sv-card{flex:0 0 80vw}}

/* lead section with manager photo */
.lead-head{max-width:640px;margin-bottom:clamp(28px,4vw,46px)}
.lead-head .lead-para{margin-top:1rem}
.lead-row{display:grid;grid-template-columns:minmax(0,1fr) minmax(260px,360px);gap:clamp(28px,4vw,56px);align-items:stretch}
.lead-row .lead-form{margin-top:0;max-width:none;width:100%}
.lead-aside{position:relative;display:flex}
.lead-photo{position:relative;flex:1;width:100%;border:1px solid var(--line);border-radius:18px;overflow:hidden;min-height:100%;box-shadow:0 40px 80px -50px #000}
.lead-photo::after{content:"";position:absolute;right:-1px;top:-1px;width:84px;height:84px;border-top:2px solid var(--accent);border-right:2px solid var(--accent);border-radius:0 18px 0 0;pointer-events:none}
.lead-photo img{width:100%;height:100%;object-fit:cover;object-position:center top}
.lead-cap{position:absolute;left:16px;bottom:16px;z-index:2;background:rgba(14,17,22,.62);backdrop-filter:blur(8px);border:1px solid var(--line);border-radius:12px;padding:10px 16px}
.lead-cap strong{display:block;font-size:1.05rem;font-weight:700}
.lead-cap span{font-size:.85rem;color:var(--mut)}
@media (max-width:920px){
  .lead-row{grid-template-columns:1fr}
  .lead-aside{order:-1;max-width:360px;margin:0 auto}
  .lead-photo{aspect-ratio:4/5;min-height:0}
}

/* partners logo marquee (auto-scroll) */
.logo-marquee{position:relative;overflow:hidden;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 7%,#000 93%,transparent);
          mask-image:linear-gradient(90deg,transparent,#000 7%,#000 93%,transparent)}
.logo-track{display:flex;width:max-content;animation:marquee 55s linear infinite;will-change:transform}
.logo-track+.logo-track{margin-top:18px}
.logo-track--rev{animation-duration:66s;animation-direction:reverse}
.logo-marquee:hover .logo-track,.logo-marquee:focus-within .logo-track{animation-play-state:paused}
.logo-cell{flex:0 0 auto;margin-right:18px;width:188px;height:96px;display:flex;align-items:center;justify-content:center;background:#fff;border-radius:14px;padding:18px 24px;box-sizing:border-box;overflow:hidden}
.logo-cell img{max-height:100%;max-width:100%;width:auto;height:auto;object-fit:contain;filter:grayscale(1);opacity:.8;transition:filter .35s,opacity .35s,transform .35s}
.logo-cell:hover img{filter:grayscale(0);opacity:1;transform:scale(1.04)}
@keyframes marquee{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@media(max-width:560px){.logo-cell{width:150px;height:82px;padding:14px 18px;margin-right:14px}}
@media(prefers-reduced-motion:reduce){
  .logo-marquee{-webkit-mask-image:none;mask-image:none}
  .logo-track{animation:none;flex-wrap:wrap;justify-content:center;width:auto;gap:18px}
  .logo-track+.logo-track{margin-top:18px}
  .logo-cell{margin-right:0}
  .logo-track .dup{display:none}
}

/* ---------- equipment detail subpage ---------- */
.subpage .site-header{background:rgba(14,17,22,.9);backdrop-filter:blur(14px);border-bottom-color:var(--line)}
.subpage main{padding-top:76px}
.subpage-hero{padding:clamp(34px,6vw,72px) 0 clamp(10px,2vw,20px)}
.crumbs{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:.9rem;color:var(--mut);margin-bottom:20px}
.crumbs a{color:var(--mut)}
.crumbs a:hover{color:var(--accent)}
.crumbs i{font-style:normal;opacity:.5}
.crumbs .cur{color:var(--txt)}
.subpage-title{font-size:clamp(2.2rem,5.5vw,4rem);font-weight:800;letter-spacing:-.03em;line-height:1.05}
.brand-list{display:grid;gap:clamp(18px,2.6vw,28px);padding-bottom:clamp(40px,6vw,80px)}
.brand-row{display:grid;grid-template-columns:320px 1fr;gap:clamp(24px,4vw,56px);align-items:center;background:var(--panel);border:1px solid var(--line);border-radius:22px;padding:clamp(22px,3vw,38px);transition:border-color .3s,transform .3s}
.brand-row:hover{border-color:rgba(255,107,43,.4);transform:translateY(-3px)}
.brand-row:nth-child(even){grid-template-columns:1fr 320px}
.brand-row:nth-child(even) .brand-figure{order:2}
.brand-plate{background:#fff;border-radius:16px;height:158px;display:flex;align-items:center;justify-content:center;padding:28px;box-sizing:border-box;overflow:hidden}
.brand-plate picture,.logo-cell picture{display:flex;align-items:center;justify-content:center;width:100%;height:100%;max-width:100%;max-height:100%;min-width:0;min-height:0}
.brand-plate img{max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain}
.brand-info h2{font-size:clamp(1.4rem,2.6vw,1.9rem);font-weight:700;margin:0 0 14px}
.brand-info p{color:var(--mut);font-size:1.06rem;line-height:1.68;margin:0;max-width:62ch}
@media(max-width:760px){
  .brand-row,.brand-row:nth-child(even){grid-template-columns:1fr}
  .brand-row:nth-child(even) .brand-figure{order:0}
  .brand-plate{height:120px;padding:22px}
}

/* brand plate fallback: name typeset when no logo available */
.brand-plate--name{background:#fff;color:#0E1116;font-weight:800;letter-spacing:-.01em;
  font-size:clamp(1.3rem,2.4vw,1.9rem);text-transform:none;text-align:center;padding:20px}

/* ---------- smart home page ---------- */
.sh-intro{max-width:760px;color:var(--mut);font-size:1.12rem;line-height:1.7;margin-top:1.1rem}
.sh-h2{font-size:clamp(1.5rem,3vw,2.1rem);font-weight:700;letter-spacing:-.02em;margin:clamp(34px,5vw,56px) 0 4px}
.sh-features{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin:clamp(22px,3vw,34px) 0}
.sh-feature{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:20px 22px;transition:border-color .3s,transform .3s}
.sh-feature:hover{border-color:rgba(255,107,43,.4);transform:translateY(-3px)}
.sh-feature h3{font-size:1.02rem;margin:0 0 6px;font-weight:600}
.sh-feature p{margin:0;color:var(--mut);font-size:.92rem;line-height:1.5}
.sh-solutions{display:grid;grid-template-columns:1fr 1fr;gap:clamp(18px,3vw,28px);margin-top:clamp(18px,2.5vw,26px)}
.sh-sol{background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:clamp(24px,3vw,34px)}
.sh-sol .tag{display:inline-block;font-size:.78rem;letter-spacing:.09em;text-transform:uppercase;color:var(--accent);font-weight:700;margin-bottom:10px}
.sh-sol h3{font-size:1.3rem;margin:0 0 10px}
.sh-sol p{margin:0;color:var(--mut);line-height:1.62}
@media(max-width:760px){.sh-solutions{grid-template-columns:1fr}}

/* ---------- service detail pages ---------- */
.sv-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.sv-badge{display:inline-flex;align-items:center;gap:9px;background:var(--panel);border:1px solid var(--line);border-radius:999px;padding:9px 17px;font-size:.92rem;font-weight:500}
.sv-badge::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px rgba(255,107,43,.6)}
.svc-prose{background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:clamp(24px,3vw,36px);color:var(--mut);line-height:1.72;font-size:1.06rem;max-width:940px}
.svc-prose>p{margin:0 0 14px}
.svc-prose .grp{color:var(--txt);font-weight:600;margin:18px 0 8px}
.svc-prose ul{list-style:none;padding:0;margin:8px 0 4px}
.svc-prose li{position:relative;padding-left:24px;margin-bottom:8px}
.svc-prose li::before{content:"";position:absolute;left:4px;top:9px;width:7px;height:7px;border-radius:50%;background:var(--accent)}
.svc-prose .note{margin-top:16px;color:var(--txt);font-size:.98rem}
.svc-aud{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px;margin-top:8px}
.svc-aud-item{background:var(--panel);border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:14px;padding:18px 20px;color:var(--mut);line-height:1.55;font-size:.98rem}

/* ---------- service page: enhanced blocks ---------- */
.svc-hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:clamp(28px,4vw,56px);align-items:center}
.svc-blueprint{width:100%;height:auto;display:block;border-radius:16px}
.svc-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:16px;margin:clamp(24px,3vw,36px) 0}
.svc-stat{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:24px 24px;position:relative;overflow:hidden}
.svc-stat::after{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--accent)}
.svc-stat b{display:block;font-size:clamp(1.5rem,3vw,2.1rem);font-weight:800;letter-spacing:-.02em;color:var(--txt);line-height:1.1}
.svc-stat .lbl{display:block;font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);font-weight:700;margin:4px 0 8px}
.svc-stat p{margin:0;color:var(--mut);font-size:.92rem;line-height:1.5}
.svc-steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.svc-step{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:24px 22px}
.svc-step .n{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:11px;background:rgba(255,107,43,.12);color:var(--accent);font-weight:800;font-size:1.05rem;margin-bottom:14px}
.svc-step h3{font-size:1.05rem;margin:0 0 6px;font-weight:600}
.svc-step p{margin:0;color:var(--mut);font-size:.94rem;line-height:1.55}
.svc-chips{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:12px}
.svc-chip{display:flex;gap:12px;align-items:flex-start;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:16px 18px;color:var(--txt);font-size:.98rem;line-height:1.45}
.svc-chip svg{flex:0 0 auto;width:20px;height:20px;color:var(--accent);margin-top:1px}
@media(max-width:820px){.svc-hero-grid{grid-template-columns:1fr}.svc-blueprint{max-width:460px;margin-top:6px}}

/* ================= service pages — "engineering worksheet" identity ================= */
:root{--mono:'IBM Plex Mono',ui-monospace,'SFMono-Regular',Menlo,monospace}

/* hero with depth + blueprint sheet */
.svc-hero{position:relative;overflow:hidden}
.svc-hero::before{content:"";position:absolute;inset:0;background:radial-gradient(120% 90% at 82% 30%,rgba(255,107,43,.10),transparent 55%);pointer-events:none}
.svc-hero .container{position:relative;z-index:1}
.eyebrow{font-family:var(--mono);font-size:.72rem;letter-spacing:.24em;text-transform:uppercase;color:var(--accent);display:inline-flex;align-items:center;gap:11px;margin-bottom:16px}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--accent)}

/* drawing sheet */
.dwg-sheet{position:relative;border:1px solid #242b34;border-radius:14px;background:#0f141a;overflow:hidden;box-shadow:0 40px 90px -50px #000}
.dwg-sheet svg{display:block;width:100%;height:auto}
.dwg-corner{position:absolute;width:12px;height:12px;border:1px solid #FF6B2B;opacity:.6}
.dwg-corner.tl{top:8px;left:8px;border-right:0;border-bottom:0}
.dwg-corner.tr{top:8px;right:8px;border-left:0;border-bottom:0}
.dwg-corner.bl{bottom:8px;left:8px;border-right:0;border-top:0}
.dwg-corner.br{bottom:8px;right:8px;border-left:0;border-top:0}
.dwg .ln{stroke-dasharray:820;stroke-dashoffset:820;animation:dwgdraw 1.7s ease .2s forwards}
@keyframes dwgdraw{to{stroke-dashoffset:0}}
@media (prefers-reduced-motion:reduce){.dwg .ln{animation:none;stroke-dashoffset:0}}

/* section head: mono eyebrow + rule */
.svc-head{margin:clamp(46px,7vw,84px) 0 clamp(22px,3vw,30px)}
.svc-head .eyebrow{margin-bottom:12px}
.svc-head h2{font-size:clamp(1.5rem,3vw,2.05rem);font-weight:700;letter-spacing:-.02em;margin:0;padding-bottom:16px;border-bottom:1px solid var(--line)}
.svc-head.tight{margin-top:clamp(30px,4vw,44px)}

/* spec block (title-block style) */
.spec{border-top:1px solid var(--line);max-width:900px}
.spec-row{display:grid;grid-template-columns:minmax(0,190px) 1fr;gap:24px;padding:18px 6px;border-bottom:1px solid var(--line);align-items:baseline}
.spec-row .k{font-family:var(--mono);font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--mut)}
.spec-row .v{color:var(--txt);font-size:1.06rem;line-height:1.55}
.spec-row .v b{color:var(--accent);font-weight:700}
@media(max-width:560px){.spec-row{grid-template-columns:1fr;gap:4px}}

/* scope: one calm panel, hairline rows */
.scope{border:1px solid var(--line);border-radius:18px;background:linear-gradient(180deg,rgba(255,255,255,.02),transparent);overflow:hidden}
.scope-item{display:flex;gap:16px;align-items:flex-start;padding:18px 22px;border-bottom:1px solid var(--line)}
.scope-item:last-child{border-bottom:0}
.scope-item .ix{font-family:var(--mono);font-size:.78rem;color:var(--accent);padding-top:2px;min-width:26px}
.scope-item p{margin:0;color:var(--txt);line-height:1.5}
.scope-item p small{display:block;color:var(--mut);font-size:.86rem;margin-top:2px}

/* process steps: real sequence, connected */
.flow{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:0;border:1px solid var(--line);border-radius:18px;overflow:hidden}
.flow-step{padding:26px 24px;border-right:1px solid var(--line);position:relative}
.flow-step:last-child{border-right:0}
.flow-step .n{font-family:var(--mono);font-size:.82rem;letter-spacing:.1em;color:var(--accent);display:block;margin-bottom:14px}
.flow-step h3{font-size:1.06rem;margin:0 0 7px;font-weight:600}
.flow-step p{margin:0;color:var(--mut);font-size:.95rem;line-height:1.55}
@media(max-width:720px){.flow-step{border-right:0;border-bottom:1px solid var(--line)}.flow-step:last-child{border-bottom:0}}

/* ---- service page: highlight cards / inclusions / audience-with-photo ---- */
.hl-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}
.hl{background:linear-gradient(180deg,rgba(255,255,255,.03),transparent);border:1px solid var(--line);border-radius:18px;padding:28px 26px;transition:border-color .3s,transform .3s,box-shadow .3s}
.hl:hover{border-color:rgba(255,107,43,.45);transform:translateY(-4px);box-shadow:0 30px 60px -44px rgba(255,107,43,.4)}
.hl-ico{width:48px;height:48px;border-radius:14px;background:rgba(255,107,43,.12);display:grid;place-items:center;color:var(--accent);margin-bottom:20px}
.hl-ico svg{width:24px;height:24px}
.hl .lbl{font-family:var(--mono);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);display:block;margin-bottom:10px}
.hl b{display:block;font-size:1.55rem;font-weight:800;letter-spacing:-.02em;line-height:1.1;margin-bottom:8px}
.hl p{margin:0;color:var(--mut);font-size:.94rem;line-height:1.55}

.incl{border:1px solid var(--line);border-radius:20px;overflow:hidden;background:linear-gradient(180deg,rgba(255,255,255,.02),transparent)}
.incl ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr}
.incl li{display:flex;gap:15px;align-items:flex-start;padding:20px 24px;border-bottom:1px solid var(--line)}
.incl li:nth-child(odd){border-right:1px solid var(--line)}
.incl li:last-child:nth-child(odd){grid-column:1 / -1;border-right:0}
.incl li:last-child,.incl li:nth-last-child(2):nth-child(odd){border-bottom:0}
.incl .ck{flex:0 0 auto;width:22px;height:22px;color:var(--accent);margin-top:1px}
.incl p{margin:0;color:var(--txt);line-height:1.45}
.incl p small{display:block;color:var(--mut);font-size:.86rem;margin-top:3px}
@media(max-width:640px){.incl ul{grid-template-columns:1fr}.incl li:nth-child(odd){border-right:0}.incl li:last-child:nth-child(odd){grid-column:auto}}

.aud-band{display:grid;grid-template-columns:.82fr 1.18fr;gap:clamp(24px,4vw,52px);align-items:center;margin-top:clamp(16px,2.5vw,24px)}
.aud-photo{position:relative;border:1px solid var(--line);border-radius:20px;overflow:hidden;aspect-ratio:4/3;box-shadow:0 40px 80px -50px #000}
.aud-photo img{width:100%;height:100%;object-fit:cover;display:block}
.aud-photo::after{content:"";position:absolute;right:-1px;top:-1px;width:76px;height:76px;border-top:2px solid var(--accent);border-right:2px solid var(--accent);border-radius:0 20px 0 0;pointer-events:none}
.aud-list{display:flex;flex-direction:column;gap:14px}
@media(max-width:820px){.aud-band{grid-template-columns:1fr}.aud-photo{max-width:520px}}

/* ---- service page: certified brands + category cards ---- */
.svc-certs{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-top:clamp(16px,2vw,22px)}
.svc-cert{background:#fff;border-radius:12px;height:62px;padding:10px 22px;display:flex;align-items:center;filter:grayscale(1);opacity:.9;transition:filter .35s,opacity .35s}
.svc-cert:hover{filter:grayscale(0);opacity:1}
.svc-cert img{max-height:100%;max-width:132px;object-fit:contain}
.svc-cat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:18px}
.svc-cat{background:linear-gradient(180deg,rgba(255,255,255,.02),transparent);border:1px solid var(--line);border-radius:18px;padding:26px 26px;transition:border-color .3s,transform .3s}
.svc-cat:hover{border-color:rgba(255,107,43,.4);transform:translateY(-3px)}
.svc-cat h3{font-size:1.08rem;margin:0 0 15px;font-weight:600;display:flex;gap:11px;align-items:center;line-height:1.3}
.svc-cat h3 .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);flex:0 0 auto;box-shadow:0 0 10px rgba(255,107,43,.6)}
.svc-cat ul{list-style:none;margin:0;padding:0}
.svc-cat li{position:relative;padding-left:22px;margin-bottom:10px;color:var(--mut);line-height:1.5;font-size:.96rem}
.svc-cat li::before{content:"";position:absolute;left:3px;top:9px;width:6px;height:6px;border-radius:50%;background:rgba(255,107,43,.65)}
.svc-cat li:last-child{margin-bottom:0}

/* ================= mobile optimization (phones) ================= */
@media (max-width:760px){
  /* HERO: stack text + illustration, no empty full-screen */
  .hero--house{min-height:auto;display:flex;flex-direction:column;justify-content:flex-start;padding:96px 0 40px}
  .hero--house .hero-overlay{display:none}
  .hero--house .hero-inner{order:1;max-width:100%}
  .hero--house .hero-title{max-width:100%;font-size:clamp(1.95rem,7.6vw,2.55rem)}
  .hero--house .hero-cta{max-width:100%;margin-top:1.6rem}
  .hero-scene{order:2;position:static;width:100%;max-width:430px;height:auto;margin:24px auto 0;opacity:1;right:auto;bottom:auto;align-items:center;justify-content:center}
  .hero-scene svg{width:100%;height:auto}
  .scroll-ind{display:none}

  /* DETAIL PAGES: tighter blocks & headings */
  .subpage-title{font-size:clamp(1.9rem,7.6vw,2.4rem)}
  .sh-intro{font-size:1rem}
  .svc-hero-grid{gap:22px}
  .aud-photo{aspect-ratio:16/10}
  .hl,.sh-feature,.svc-cat,.svc-sol{padding:20px 18px}
  .svc-prose{padding:20px 18px;font-size:1rem}
  .brand-row,.brand-row:nth-child(even){padding:20px 18px;gap:16px}
  .brand-plate{height:108px}
  .scope-item,.incl li{padding:16px 18px}
  .flow-step{padding:22px 18px}
  .section-head h2,.svc-head h2,.sh-h2{font-size:clamp(1.35rem,6.2vw,1.72rem)}
  .eyebrow{font-size:.68rem;letter-spacing:.18em}
  .hl b{font-size:1.4rem}

  /* GENERAL: tighter rhythm on phones */
  .section{padding-top:clamp(40px,7vw,60px);padding-bottom:clamp(48px,9vw,76px)}
  .subpage-hero{padding-top:clamp(26px,6vw,44px)}
}

/* ================= floating quick-contact buttons ================= */
.quick-contact{position:fixed;right:clamp(14px,3vw,24px);bottom:clamp(16px,3vw,26px);z-index:150;display:flex;flex-direction:column;gap:12px}
.qc-btn{width:54px;height:54px;border-radius:50%;display:grid;place-items:center;color:#fff;box-shadow:0 14px 32px -10px rgba(0,0,0,.6);transition:transform .22s ease;position:relative}
.qc-btn:hover{transform:scale(1.09)}
.qc-btn svg{width:26px;height:26px}
.qc-viber{background:#7360f2}
.qc-tel{background:var(--accent)}
.qc-tel::before{content:"";position:absolute;inset:0;border-radius:50%;box-shadow:0 0 0 0 rgba(255,107,43,.55);animation:qcPulse 2.4s ease-out infinite}
@keyframes qcPulse{0%{box-shadow:0 0 0 0 rgba(255,107,43,.5)}70%{box-shadow:0 0 0 16px rgba(255,107,43,0)}100%{box-shadow:0 0 0 0 rgba(255,107,43,0)}}
@media(max-width:560px){.qc-btn{width:50px;height:50px}.qc-btn svg{width:24px;height:24px}}
@media (prefers-reduced-motion:reduce){.qc-tel::before{animation:none}}