:root{
  --bg:#0c1518;
  --bg-2:#111e22;
  --surface:#f4f5f3;
  --surface-2:#e8ecea;
  --surface-dark:#142429;
  --text:#152126;
  --text-invert:#f4f6f5;
  --muted:#657277;
  --muted-invert:#aebbc0;
  --line:#cbd2d0;
  --line-dark:#2b3d42;
  --accent:#a66f36;
  --accent-2:#c68d49;
  --accent-soft:#efe5d9;
  --success:#316b52;
  --error:#9b3d39;
  --container:1220px;
  --shadow:0 18px 50px rgba(9,19,22,.12);
  --font: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);background:var(--surface);color:var(--text);line-height:1.55;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit}
button{cursor:pointer}
::selection{background:var(--accent);color:#fff}
.container{width:min(var(--container),calc(100% - 40px));margin-inline:auto}
.skip-link{position:fixed;left:16px;top:-100px;background:#fff;color:#000;padding:10px 14px;z-index:9999}
.skip-link:focus{top:16px}
.eyebrow{font-family:var(--mono);font-size:.76rem;letter-spacing:.11em;text-transform:uppercase;color:var(--accent);font-weight:700}
.section{padding:92px 0}
.section--dark{background:var(--bg);color:var(--text-invert)}
.section--alt{background:var(--surface-2)}
.section-head{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,.5fr);gap:40px;align-items:end;margin-bottom:42px}
.section-head h2{margin:7px 0 0;font-size:clamp(2rem,4vw,3.35rem);line-height:1.05;letter-spacing:-.035em;max-width:800px}
.section-head p{margin:0;color:var(--muted);font-size:1.03rem}
.section--dark .section-head p{color:var(--muted-invert)}
.h2{font-size:clamp(2rem,4vw,3.3rem);line-height:1.05;letter-spacing:-.035em;margin:0 0 24px}
.lead{font-size:clamp(1.08rem,1.5vw,1.25rem);color:var(--muted);max-width:760px}
.kicker{font:700 .78rem/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;border:1px solid transparent;border-radius:2px;font-weight:700;transition:.2s ease;background:transparent}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid rgba(198,141,73,.45);outline-offset:3px}
.btn--primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn--primary:hover{background:var(--accent-2);border-color:var(--accent-2);transform:translateY(-1px)}
.btn--outline{border-color:#6f7e82;color:inherit}
.btn--outline:hover{border-color:var(--accent);color:var(--accent)}
.btn--ghost{border-color:rgba(255,255,255,.38);color:#fff}
.btn--ghost:hover{border-color:#fff}
.btn--wide{width:100%}
.btn--header{background:var(--accent);color:#fff;min-height:42px;padding-inline:18px}
.icon{width:24px;height:24px;flex:none}
.text-link{display:inline-flex;align-items:center;gap:8px;font-weight:700;color:var(--accent)}
.text-link svg{transition:.2s transform}
.text-link:hover svg{transform:translateX(3px)}
.rule{height:1px;background:var(--line);margin:28px 0}

.topbar{background:#071013;color:#afbdc1;font-size:.82rem;border-bottom:1px solid #24353a}
.topbar__inner{min-height:37px;display:flex;justify-content:space-between;align-items:center;gap:24px}
.topbar__text{margin:0}
.topbar__contacts{display:flex;gap:24px}
.topbar__contacts a:hover{color:#fff}
.nav-shell{position:sticky;top:0;z-index:50;background:rgba(12,21,24,.96);backdrop-filter:blur(14px);color:#fff;border-bottom:1px solid rgba(255,255,255,.1)}
.nav-shell__inner{height:78px;display:flex;align-items:center;gap:26px}
.brand{display:flex;align-items:center;gap:12px;min-width:238px}
.brand img{width:46px;height:46px}
.brand__text{display:flex;flex-direction:column;line-height:1.05}
.brand__text strong{font-size:1rem;letter-spacing:.06em}
.brand__text small{font:600 .59rem/1.25 var(--mono);letter-spacing:.07em;text-transform:uppercase;color:#9ba9ad;margin-top:5px}
.main-nav{display:flex;align-items:center;gap:21px;margin-left:auto}
.main-nav a{font-size:.88rem;font-weight:650;color:#c8d0d2;white-space:nowrap}
.main-nav a:hover{color:#fff}
.menu-toggle{display:none;margin-left:auto;border:1px solid #435359;background:none;color:#fff;width:46px;height:46px;align-items:center;justify-content:center}
.mobile-menu{position:fixed;inset:0;z-index:100;pointer-events:none;opacity:0;background:rgba(2,8,10,.74);transition:.2s}
.mobile-menu.is-open{pointer-events:auto;opacity:1}
.mobile-menu__panel{margin-left:auto;width:min(420px,92vw);height:100%;background:#101d21;color:#fff;padding:22px;transform:translateX(100%);transition:.25s ease;overflow:auto}
.mobile-menu.is-open .mobile-menu__panel{transform:none}
.mobile-menu__head{display:flex;justify-content:space-between;align-items:center;padding-bottom:18px;border-bottom:1px solid #31444a;text-transform:uppercase;letter-spacing:.08em;font:700 .78rem var(--mono)}
.mobile-menu__close{border:0;background:none;color:#fff;padding:8px}
.mobile-menu nav{display:grid;margin:16px 0 24px}
.mobile-menu nav a{padding:14px 4px;border-bottom:1px solid #2a3b40;font-weight:650}
.mobile-menu__contacts{display:grid;gap:5px;margin-top:20px;color:#aebbc0}

.hero{position:relative;isolation:isolate;background:#0b171b;color:#fff;min-height:690px;display:flex;align-items:stretch;overflow:hidden}
.hero__media{position:absolute;inset:0;z-index:-2}
.hero__media picture,.hero__media img{width:100%;height:100%}
.hero__media img{object-fit:cover;object-position:center}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;background:
 linear-gradient(90deg,rgba(5,13,16,.96) 0%,rgba(5,13,16,.86) 38%,rgba(5,13,16,.40) 67%,rgba(5,13,16,.23) 100%),
 linear-gradient(0deg,rgba(5,13,16,.72),transparent 38%)}
.hero__grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(310px,.58fr);gap:80px;align-items:center;padding:74px 0 82px}
.hero h1{font-size:clamp(2.75rem,5.2vw,5rem);line-height:.97;letter-spacing:-.05em;margin:14px 0 24px;max-width:850px}
.hero__lead{font-size:clamp(1.08rem,1.55vw,1.35rem);color:#cdd6d8;max-width:720px;margin:0 0 30px}
.hero__actions{display:flex;gap:12px;flex-wrap:wrap}
.hero__subline{display:flex;gap:24px;flex-wrap:wrap;margin-top:32px;padding-top:24px;border-top:1px solid rgba(255,255,255,.2);color:#d3dcde}
.hero__subline span{display:flex;gap:9px;align-items:center;font-size:.92rem}
.hero__brief{background:rgba(10,24,29,.86);border:1px solid rgba(255,255,255,.18);box-shadow:0 20px 80px rgba(0,0,0,.24);padding:30px}
.hero__brief .kicker{color:#d3a66a}
.hero__brief h2{font-size:1.45rem;line-height:1.15;margin:10px 0 22px}
.hero__brief ul{list-style:none;padding:0;margin:0;display:grid;gap:0}
.hero__brief li{padding:14px 0;border-top:1px solid rgba(255,255,255,.13);display:grid;grid-template-columns:28px 1fr;gap:10px}
.hero__brief li strong{font-size:.94rem}
.hero__brief li span{display:block;color:#9fb0b5;font-size:.82rem;margin-top:2px}
.hero__brief .num{font-family:var(--mono);color:var(--accent-2);font-size:.72rem;padding-top:2px}

.trust-strip{background:#fff;border-bottom:1px solid var(--line)}
.trust-strip__grid{display:grid;grid-template-columns:repeat(4,1fr)}
.trust-item{padding:25px 25px 25px 0;display:flex;gap:14px;align-items:flex-start;border-right:1px solid var(--line)}
.trust-item:not(:first-child){padding-left:25px}
.trust-item:last-child{border-right:0}
.trust-item svg{color:var(--accent);width:27px;height:27px}
.trust-item strong{display:block;font-size:.95rem}
.trust-item span{display:block;color:var(--muted);font-size:.84rem;margin-top:3px}

.intro-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:70px;align-items:start}
.intro-sticky{position:sticky;top:110px}
.intro-sticky p{color:var(--muted);font-size:1.05rem}
.intro-points{display:grid;border-top:1px solid var(--line)}
.intro-point{display:grid;grid-template-columns:56px 1fr;padding:26px 0;border-bottom:1px solid var(--line)}
.intro-point__n{font:700 .78rem var(--mono);color:var(--accent)}
.intro-point h3{font-size:1.35rem;margin:0 0 7px}
.intro-point p{margin:0;color:var(--muted)}

.solution-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:16px}
.solution-card{position:relative;background:#fff;border:1px solid var(--line);padding:26px;min-height:260px;display:flex;flex-direction:column;overflow:hidden;transition:.22s}
.solution-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#abb7b4}
.solution-card--wide{grid-column:span 7}
.solution-card--narrow{grid-column:span 5}
.solution-card--third{grid-column:span 4}
.solution-card__num{font:700 .72rem var(--mono);color:var(--accent);letter-spacing:.08em}
.solution-card h3{font-size:clamp(1.35rem,2vw,2rem);line-height:1.08;margin:36px 0 12px;max-width:480px}
.solution-card p{margin:0;color:var(--muted);max-width:520px}
.solution-card .text-link{margin-top:auto;padding-top:28px}
.solution-card--dark{background:var(--surface-dark);color:#fff;border-color:#31454b}
.solution-card--dark p{color:#aebbc0}
.solution-card::after{content:"";position:absolute;width:150px;height:150px;border:1px solid rgba(166,111,54,.28);right:-60px;top:-70px;transform:rotate(45deg)}

.object-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.object-card{background:#fff;border:1px solid var(--line);overflow:hidden;transition:.2s}
.object-card:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.object-card picture{aspect-ratio:1.6/1;display:block;overflow:hidden;background:#d7dddb}
.object-card img{width:100%;height:100%;object-fit:cover;transition:.35s transform}
.object-card:hover img{transform:scale(1.035)}
.object-card__body{padding:20px}
.object-card h3{font-size:1.18rem;margin:0 0 8px}
.object-card p{color:var(--muted);font-size:.9rem;margin:0 0 18px}
.works-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.work-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);overflow:hidden;transition:.2s}
.work-card:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.work-card picture{aspect-ratio:1.4/1;display:block;overflow:hidden;background:#d7dddb}
.work-card img{width:100%;height:100%;object-fit:cover;transition:.35s transform}
.work-card:hover img{transform:scale(1.035)}
.work-card__body{display:flex;flex-direction:column;gap:10px;padding:20px;height:100%}
.work-card__tag{display:inline-flex;align-items:center;width:max-content;padding:6px 10px;background:var(--accent-soft);color:var(--accent);font:700 .72rem/1 var(--mono);letter-spacing:.08em;text-transform:uppercase}
.work-card h3{margin:0;font-size:1.08rem;line-height:1.15}
.work-card p{margin:0 0 6px;color:var(--muted);font-size:.92rem;line-height:1.55}
.work-card .text-link{margin-top:auto}

.engineering{background:#0d191d;color:#fff}
.engineering-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
.engineering-visual{border:1px solid #34474d;background:#132328;padding:26px;min-height:520px;display:flex;align-items:center}
.engineering-visual svg{width:100%;height:auto}
.engineering-copy p{color:#aebbc0}
.spec-list{display:grid;margin-top:28px;border-top:1px solid #304249}
.spec-row{display:grid;grid-template-columns:38px 1fr;padding:17px 0;border-bottom:1px solid #304249;gap:12px}
.spec-row b{font:700 .75rem var(--mono);color:var(--accent-2)}
.spec-row strong{display:block;margin-bottom:2px}
.spec-row span{color:#9dafb4;font-size:.9rem}

.process-grid{display:grid;grid-template-columns:repeat(7,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.process-step{padding:26px 18px;border-right:1px solid var(--line);min-height:220px}
.process-step:last-child{border-right:0}
.process-step__n{font:700 .72rem var(--mono);color:var(--accent);letter-spacing:.08em}
.process-step h3{font-size:1rem;line-height:1.25;margin:26px 0 8px}
.process-step p{font-size:.83rem;color:var(--muted);margin:0}

.split-media{display:grid;grid-template-columns:1.02fr .98fr;gap:0;background:#fff;border:1px solid var(--line)}
.split-media__image{min-height:520px}
.split-media__image img{width:100%;height:100%;object-fit:cover}
.split-media__copy{padding:54px}
.split-media__copy ul{margin:28px 0;padding:0;list-style:none;border-top:1px solid var(--line)}
.split-media__copy li{padding:15px 0;border-bottom:1px solid var(--line);display:flex;gap:12px}
.split-media__copy li svg{color:var(--accent);margin-top:2px;flex:none}

.product-specs{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.product-panel{border:1px solid var(--line);padding:30px;background:#fff}
.product-panel--dark{background:var(--surface-dark);color:#fff;border-color:#33474d}
.product-panel h3{font-size:1.65rem;margin:6px 0 12px}
.product-panel p{color:var(--muted)}
.product-panel--dark p{color:#aebbc0}
.spec-table{width:100%;border-collapse:collapse;margin-top:22px}
.spec-table td{border-top:1px solid var(--line);padding:13px 0;font-size:.9rem;vertical-align:top}
.product-panel--dark .spec-table td{border-color:#32454b}
.spec-table td:first-child{color:var(--muted);width:42%}
.product-panel--dark .spec-table td:first-child{color:#9fafb4}

.cost-grid{display:grid;grid-template-columns:.75fr 1.25fr;gap:50px}
.cost-factors{display:grid;border-top:1px solid var(--line)}
.cost-factor{padding:18px 0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:36px 1fr;gap:12px}
.cost-factor b{font-family:var(--mono);color:var(--accent);font-size:.75rem}
.calculator{background:var(--bg-2);color:#fff;padding:34px;border:1px solid #2f4248}
.calculator h3{font-size:1.55rem;margin:0 0 8px}
.calculator p{color:#aebbc0;margin:0 0 24px}
.calc-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.calculator label span{display:block;font-size:.78rem;color:#b9c4c7;margin-bottom:7px}
.calculator input,.calculator select{width:100%;height:48px;border:1px solid #42545a;background:#0e1b1f;color:#fff;padding:0 12px;border-radius:0}
.calc-result{margin:20px 0 0;padding:18px;background:#18292e;border-left:3px solid var(--accent)}
.calc-result strong{display:block;font-size:1.45rem}
.calc-result span{color:#aebbc0;font-size:.85rem}

.procurement{background:#dfe5e3;border-top:1px solid #c3cdca;border-bottom:1px solid #c3cdca}
.procurement-grid{display:grid;grid-template-columns:.75fr 1.25fr;gap:70px}
.procurement-list{display:grid;grid-template-columns:1fr 1fr;gap:0 36px}
.procurement-item{padding:18px 0;border-top:1px solid #b9c5c1}
.procurement-item strong{display:block;margin-bottom:4px}
.procurement-item span{font-size:.9rem;color:#5f6e73}

.faq{display:grid;grid-template-columns:.55fr 1.45fr;gap:70px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{width:100%;display:flex;justify-content:space-between;align-items:center;text-align:left;background:none;border:0;padding:20px 0;font-weight:750;font-size:1rem;color:var(--text)}
.faq-q span:last-child{font-size:1.45rem;font-weight:400;color:var(--accent);transition:.2s}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease}
.faq-a p{margin:0;padding:0 40px 20px 0;color:var(--muted)}
.faq-item.is-open .faq-q span:last-child{transform:rotate(45deg)}
.faq-item.is-open .faq-a{max-height:400px}

.seo-copy{max-width:980px}
.seo-copy h2{font-size:2rem;margin:0 0 20px}
.seo-copy h3{font-size:1.3rem;margin:30px 0 10px}
.seo-copy p{color:#58666b}
.seo-links{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px}
.seo-links a{border:1px solid var(--line);background:#fff;padding:10px 12px;font-size:.88rem}
.seo-links a:hover{border-color:var(--accent);color:var(--accent)}

.contact-panel{background:var(--bg);color:#fff}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.contact-grid h2{font-size:clamp(2rem,4vw,3.5rem);margin:8px 0 20px;line-height:1.05}
.contact-grid p{color:#aebbc0;max-width:620px}
.contact-details{display:grid;margin-top:28px;border-top:1px solid #2d4147}
.contact-details a,.contact-details div{padding:17px 0;border-bottom:1px solid #2d4147;display:flex;justify-content:space-between;gap:20px}
.contact-details span{color:#8fa0a5;font-size:.8rem;text-transform:uppercase;letter-spacing:.08em}
.contact-brief{background:#14262b;padding:34px;border:1px solid #33484e}
.contact-brief h3{margin:0 0 15px;font-size:1.4rem}
.contact-brief ul{list-style:none;margin:0 0 24px;padding:0}
.contact-brief li{padding:11px 0;border-bottom:1px solid #304349;color:#c0cacc}

.site-footer{background:#071013;color:#c0cbce;padding:68px 0 20px}
.footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr .75fr 1fr;gap:36px}
.brand--footer{color:#fff;margin-bottom:18px}
.footer-brand p{font-size:.9rem;color:#8fa1a6;max-width:320px}
.footer-col h2,.footer-contact h2{font-size:.75rem;font-family:var(--mono);text-transform:uppercase;letter-spacing:.09em;color:#7f9297;margin:0 0 16px}
.footer-col{display:grid;align-content:start;gap:10px}
.footer-col a,.footer-contact a{font-size:.88rem}
.footer-col a:hover,.footer-contact a:hover{color:#fff}
.footer-contact{display:grid;align-content:start;gap:10px}
.footer-phone{color:#fff;font-size:1.2rem!important;font-weight:700}
.footer-contact p{font-size:.82rem;color:#809399}
.footer-legal{display:flex;flex-wrap:wrap;gap:20px;padding-top:24px;margin-top:46px;border-top:1px solid #213238;color:#6f8389;font-size:.78rem}
.footer-legal a:hover{color:#b7c5c8}

.modal{position:fixed;inset:0;z-index:200;display:flex;align-items:center;justify-content:center;padding:20px;opacity:0;visibility:hidden;transition:.2s}
.modal.is-open{opacity:1;visibility:visible}
.modal__overlay{position:absolute;inset:0;background:rgba(2,8,10,.82);backdrop-filter:blur(4px)}
.modal__dialog{position:relative;width:min(650px,100%);max-height:calc(100dvh - 40px);overflow:auto;background:#f5f6f4;padding:38px;box-shadow:0 30px 80px rgba(0,0,0,.35)}
.modal__close{position:absolute;right:14px;top:14px;width:42px;height:42px;display:flex;align-items:center;justify-content:center;border:1px solid var(--line);background:#fff}
.modal__eyebrow{font:700 .75rem var(--mono);text-transform:uppercase;letter-spacing:.1em;color:var(--accent)}
.modal h2{font-size:2rem;line-height:1.1;margin:8px 45px 10px 0}
.modal__lead{color:var(--muted);margin:0 0 24px}
.request-form{display:grid;gap:15px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.request-form label>span{display:block;font-size:.78rem;font-weight:650;margin-bottom:6px}
.request-form input,.request-form textarea{width:100%;border:1px solid #aeb9b6;background:#fff;padding:13px;border-radius:0;color:#182327}
.request-form textarea{resize:vertical}
.consent{display:flex;gap:10px;align-items:flex-start}
.consent input{width:auto;margin-top:3px}
.consent>span{font-size:.76rem!important;color:var(--muted)}
.consent a{text-decoration:underline}
.form-status{min-height:20px;font-size:.88rem}
.form-status.is-success{color:var(--success);background:#e6f0eb;padding:12px}
.form-status.is-error{color:var(--error);background:#f5e8e7;padding:12px}
.to-top{position:fixed;right:18px;bottom:18px;width:48px;height:48px;display:flex;align-items:center;justify-content:center;background:#142429;color:#fff;border:1px solid #40545a;z-index:45;opacity:0;pointer-events:none;transform:rotate(-90deg);transition:.2s}
.to-top.is-visible{opacity:1;pointer-events:auto}

.breadcrumbs{background:var(--bg);border-top:1px solid rgba(255,255,255,.06);border-bottom:1px solid rgba(255,255,255,.08)}
.breadcrumbs__inner{display:flex;gap:8px;padding:12px 0;color:#97a6aa;font-size:.78rem}
.breadcrumbs a{color:#c5d0d3}
.breadcrumbs a:hover{color:var(--accent-2)}
.internal-hero{background:#0d191d;color:#fff;padding:76px 0 66px;border-bottom:1px solid #2c4147}
.internal-hero__grid{display:grid;grid-template-columns:1fr .5fr;gap:70px;align-items:end}
.internal-hero h1{font-size:clamp(2.5rem,5vw,4.8rem);line-height:.98;letter-spacing:-.045em;margin:14px 0 20px}
.internal-hero p{color:#b1bec2;font-size:1.1rem;max-width:780px}
.internal-hero__aside{border-left:1px solid #3a4d53;padding-left:28px}
.internal-hero__aside span{display:block;color:#7e9096;font:700 .72rem var(--mono);text-transform:uppercase;letter-spacing:.09em}
.internal-hero__aside strong{display:block;margin-top:8px;font-size:1.2rem}
.internal-content{display:grid;grid-template-columns:.68fr 1.32fr;gap:70px}
.internal-side{position:sticky;top:110px;align-self:start}
.internal-side nav{display:grid;border-top:1px solid var(--line)}
.internal-side nav a{padding:11px 0;border-bottom:1px solid var(--line);font-size:.88rem}
.internal-main h2{font-size:2rem;line-height:1.1;margin:0 0 18px}
.internal-main h3{font-size:1.3rem;margin:32px 0 10px}
.internal-main p,.internal-main li{color:#58666b}
.internal-main ul{padding-left:18px}
.internal-callout{margin:34px 0;padding:28px;background:#e3e8e6;border-left:4px solid var(--accent)}
.legal-copy{max-width:900px}
.legal-copy h2{margin-top:34px}
.legal-copy p,.legal-copy li{color:#55646a}
.site-map-list{columns:2;column-gap:40px}
.site-map-list a{display:block;padding:8px 0;border-bottom:1px solid var(--line);break-inside:avoid}

@media(max-width:1120px){
  .main-nav{display:none}
  .btn--header{margin-left:auto}
  .menu-toggle{display:flex}
  .hero__grid{gap:45px;grid-template-columns:1.15fr .65fr}
  .process-grid{grid-template-columns:repeat(4,1fr)}
  .process-step:nth-child(4){border-right:0}
  .process-step:nth-child(n+5){border-top:1px solid var(--line)}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
  .footer-contact{grid-column:2/4}
}
@media(max-width:900px){
  .section{padding:72px 0}
  .section-head{grid-template-columns:1fr;gap:16px}
  .hero{min-height:auto}
  .hero__grid{grid-template-columns:1fr;padding:60px 0}
  .hero__brief{max-width:640px}
  .trust-strip__grid{grid-template-columns:1fr 1fr}
  .trust-item:nth-child(2){border-right:0}
  .trust-item:nth-child(n+3){border-top:1px solid var(--line)}
  .intro-grid,.engineering-grid,.cost-grid,.procurement-grid,.faq,.contact-grid,.internal-content{grid-template-columns:1fr}
  .intro-sticky,.internal-side{position:static}
  .solution-card--wide,.solution-card--narrow,.solution-card--third{grid-column:span 6}
  .object-grid{grid-template-columns:1fr 1fr}
  .works-grid{grid-template-columns:1fr 1fr}
  .split-media{grid-template-columns:1fr}
  .split-media__image{min-height:380px}
  .product-specs{grid-template-columns:1fr}
  .process-grid{grid-template-columns:repeat(2,1fr)}
  .process-step:nth-child(n){border-top:0;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
  .process-step:nth-child(even){border-right:0}
  .procurement-list{grid-template-columns:1fr}
  .internal-hero__grid{grid-template-columns:1fr}
  .internal-hero__aside{border-left:0;border-top:1px solid #3a4d53;padding:20px 0 0}
}
@media(max-width:680px){
  .container{width:min(100% - 28px,var(--container))}
  .topbar{display:none}
  .nav-shell__inner{height:68px}
  .brand{min-width:0}
  .brand img{width:40px;height:40px}
  .brand__text strong{font-size:.92rem}
  .brand__text small{font-size:.52rem}
  .btn--header{display:none}
  .hero__grid{padding:48px 0}
  .hero h1{font-size:clamp(2.35rem,12vw,3.4rem)}
  .hero__actions{display:grid}
  .hero__actions .btn{width:100%}
  .hero__subline{display:grid;gap:10px}
  .hero__brief{padding:22px}
  .trust-strip__grid{grid-template-columns:1fr}
  .trust-item,.trust-item:not(:first-child){padding:18px 0;border-right:0;border-top:1px solid var(--line)}
  .trust-item:first-child{border-top:0}
  .section{padding:60px 0}
  .solution-grid{display:grid;grid-template-columns:1fr}
  .solution-card--wide,.solution-card--narrow,.solution-card--third{grid-column:auto}
  .object-grid{grid-template-columns:1fr}
  .works-grid{grid-template-columns:1fr}
  .engineering-visual{padding:14px;min-height:420px;overflow:hidden}
  .split-media__copy{padding:28px}
  .split-media__image{min-height:290px}
  .process-grid{grid-template-columns:1fr}
  .process-step:nth-child(n){border-right:0}
  .calc-grid,.form-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1/-1}
  .footer-contact{grid-column:1/-1}
  .footer-legal{display:grid;gap:8px}
  .modal{padding:10px}
  .modal__dialog{padding:28px 18px 22px;max-height:calc(100dvh - 20px)}
  .modal h2{font-size:1.55rem}
  .site-map-list{columns:1}
}
@media(max-width:390px){
  .brand__text small{display:none}
  .brand__text strong{font-size:.88rem}
  .footer-grid{grid-template-columns:1fr}
  .footer-brand,.footer-contact{grid-column:auto}
  .hero__brief li{grid-template-columns:24px 1fr}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{scroll-behavior:auto!important;transition:none!important;animation:none!important}
}

.topbar__max{display:inline-flex;align-items:center;gap:7px}
.topbar__max span,.mobile-menu__max span{display:inline-flex;align-items:center;justify-content:center;min-width:34px;height:20px;padding:0 6px;border:1px solid rgba(198,141,73,.65);color:var(--accent-2);font:700 .65rem var(--mono);letter-spacing:.05em}
.mobile-menu__max{display:flex;align-items:center;gap:8px}


/* Window protection film page */
.window-film-page .film-demo{padding:34px;justify-content:center}
.window-film-page .film-demo__frame{width:min(100%,560px);aspect-ratio:1.25/1;border:18px solid #273b41;background:#0b1417;padding:13px;box-shadow:inset 0 0 0 1px #51656b}
.window-film-page .film-demo__glass{position:relative;width:100%;height:100%;overflow:hidden;background:linear-gradient(140deg,rgba(199,220,226,.26),rgba(72,100,110,.18)),linear-gradient(35deg,#7d9ca6 0%,#dbe8eb 46%,#78949e 100%);border:1px solid rgba(255,255,255,.32)}
.window-film-page .film-demo__glass::after{content:"";position:absolute;inset:0;background:linear-gradient(115deg,transparent 30%,rgba(255,255,255,.28) 48%,transparent 62%);pointer-events:none}
.window-film-page .film-demo__layer{position:absolute;left:22px;bottom:22px;padding:9px 12px;background:rgba(12,21,24,.86);border-left:3px solid var(--accent-2);font:700 .72rem var(--mono);letter-spacing:.08em;text-transform:uppercase;color:#fff}
.window-film-page .film-demo__crack{position:absolute;left:56%;top:46%;height:2px;background:rgba(255,255,255,.82);transform-origin:left center;box-shadow:0 0 1px rgba(0,0,0,.4)}
.window-film-page .film-demo__crack::before,.window-film-page .film-demo__crack::after{content:"";position:absolute;right:18%;width:56%;height:1px;background:rgba(255,255,255,.66);transform-origin:right center}
.window-film-page .film-demo__crack::before{transform:rotate(32deg)}
.window-film-page .film-demo__crack::after{transform:rotate(-38deg)}
.window-film-page .film-demo__crack--1{width:43%;transform:rotate(8deg)}
.window-film-page .film-demo__crack--2{width:36%;transform:rotate(132deg)}
.window-film-page .film-demo__crack--3{width:30%;transform:rotate(238deg)}
.window-film-page .film-process-grid{grid-template-columns:repeat(7,1fr)}
.window-film-page .solution-card button.text-link{border:0;background:none;padding:28px 0 0;text-align:left;font:inherit;cursor:pointer;width:max-content}
.window-film-page .solution-card button.text-link svg{margin-left:4px}
@media(max-width:1120px){.window-film-page .film-process-grid{grid-template-columns:repeat(4,1fr)}}
@media(max-width:900px){.window-film-page .film-process-grid{grid-template-columns:repeat(2,1fr)}.window-film-page .film-demo{min-height:430px}}
@media(max-width:680px){.window-film-page .film-process-grid{grid-template-columns:1fr}.window-film-page .film-demo{min-height:340px;padding:18px}.window-film-page .film-demo__frame{border-width:12px}}