:root{
  --ink:#0c171d;
  --ink-soft:#4f5e66;
  --muted:#697980;
  --line:#dfe5e8;
  --paper:#ffffff;
  --wash:#f5f7f8;
  --brand:#0b4e45;
  --brand-deep:#073a34;
  --dark:#101a20;
  --dark2:#18262e;
  --shadow:0 12px 32px rgba(14,29,37,.08);
  --shadow-hover:0 20px 42px rgba(14,29,37,.14);
  --radius:10px;
  --shell:min(1180px,calc(100vw - 64px));
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:#fff;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}body.menu-open{overflow:hidden}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}button,input,select,textarea{font:inherit}.shell{width:var(--shell);margin:0 auto}.skip{position:absolute;left:-9999px;top:auto}.skip:focus{left:16px;top:16px;z-index:999;background:#fff;padding:12px 14px;border:1px solid var(--line)}

/* Header */
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.97);border-bottom:1px solid #e4e9eb;backdrop-filter:blur(12px)}.header-inner{height:76px;display:flex;align-items:center;gap:32px}.brand{display:flex;align-items:center;width:220px;flex:none}.brand img{width:185px;height:auto}.main-nav{display:flex;align-items:center;gap:31px;margin-left:auto}.main-nav a{font-size:12px;font-weight:600;color:#202c31;white-space:nowrap}.main-nav a:hover,.main-nav a[aria-current="page"]{color:var(--brand)}.header-tools{display:flex;align-items:center;gap:13px;margin-left:8px}.lang{font-size:12px;display:flex;align-items:center;gap:7px;padding:9px 2px}.quote-btn,.btn{display:inline-flex;align-items:center;justify-content:center;gap:12px;border-radius:7px;border:1px solid transparent;min-height:44px;padding:0 22px;font-size:12px;font-weight:750;transition:transform .2s,box-shadow .2s,background .2s,border-color .2s}.quote-btn,.btn-primary{background:var(--brand);color:#fff}.quote-btn:hover,.btn-primary:hover{background:var(--brand-deep);transform:translateY(-2px);box-shadow:0 10px 22px rgba(7,58,52,.18)}.btn-light{background:#fff;color:var(--ink);border-color:#d6dde0}.btn-light:hover{transform:translateY(-2px);box-shadow:var(--shadow)}.btn-dark{background:#0e191f;color:#fff}.menu-btn{display:none;background:transparent;border:0;width:42px;height:42px;font-size:23px}.mobile-nav{display:none}

/* Hero – matching approved reference */
.home-hero{position:relative;min-height:505px;overflow:hidden;background:linear-gradient(90deg,#111d23 0%,#15242c 50%,#111c22 100%);color:#fff}.home-hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(11,22,28,.99) 0%,rgba(13,26,33,.96) 38%,rgba(13,26,33,.35) 62%,rgba(13,26,33,.05) 100%);z-index:1}.home-hero-visual{position:absolute;right:0;top:0;width:61%;height:100%;object-fit:cover;object-position:center bottom;z-index:0}.hero-content{position:relative;z-index:2;padding:48px 0 34px;max-width:600px}.eyebrow{display:flex;align-items:center;gap:16px;font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:#eef3f3}.eyebrow:before{content:"";width:24px;height:1px;background:#dce6e6}.home-hero h1{font-size:clamp(52px,6vw,76px);line-height:.94;letter-spacing:-.055em;margin:20px 0 23px;text-transform:uppercase;max-width:610px}.home-hero h1 span{display:block;font-weight:350}.home-hero .lead{font-size:18px;line-height:1.55;color:#e0e7e9;max-width:470px;margin:0}.hero-actions{display:flex;gap:14px;margin-top:27px}.hero-trust{display:flex;gap:42px;margin-top:36px}.trust-item{display:flex;align-items:center;gap:11px;color:#fff}.trust-icon{width:33px;height:33px;border:1px solid rgba(255,255,255,.55);border-radius:50%;display:grid;place-items:center;font-size:15px}.trust-item strong{display:block;font-size:10px;letter-spacing:.06em;text-transform:uppercase}.trust-item small{display:block;color:#b8c5ca;font-size:9px;margin-top:2px}

/* Section headers */
.section{padding:36px 0 48px}.section-gray{background:#f7f9fa}.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:30px;margin-bottom:16px}.section-label{font-size:11px;letter-spacing:.13em;text-transform:uppercase;color:#384951;font-weight:650;margin-bottom:5px}.section-head h2{font-size:31px;line-height:1.03;letter-spacing:-.045em;margin:0}.section-link{font-size:12px;font-weight:650;white-space:nowrap}.section-link:hover{color:var(--brand)}

/* White product cards */
.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.product-card{background:#fff;border:1px solid #edf0f1;border-radius:11px;overflow:hidden;box-shadow:var(--shadow);transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;min-height:285px;display:flex;flex-direction:column}.product-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-hover);border-color:#dce4e6}.product-image{height:164px;display:flex;align-items:center;justify-content:center;background:#fff;overflow:hidden}.product-image img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}.product-card:hover .product-image img{transform:scale(1.045)}.product-body{padding:15px 16px 17px;display:grid;grid-template-columns:1fr 40px;gap:10px;align-items:end;flex:1}.product-body h3{font-size:16px;line-height:1.12;margin:0 0 8px;letter-spacing:-.02em}.product-body p{font-size:11px;line-height:1.45;color:#5b686e;margin:0}.circle-arrow{width:38px;height:38px;border:1px solid #d5dddf;border-radius:50%;display:grid;place-items:center;font-size:18px;transition:.25s}.product-card:hover .circle-arrow{background:var(--brand);border-color:var(--brand);color:#fff;transform:translateX(2px)}

/* Architectural cards */
.arch-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.arch-card{background:#fff;border:1px solid #e7ecee;border-radius:9px;box-shadow:0 10px 25px rgba(20,35,43,.07);overflow:hidden;transition:.28s;display:flex;flex-direction:column}.arch-card:hover{transform:translateY(-7px);box-shadow:var(--shadow-hover)}.arch-image{height:165px;overflow:hidden}.arch-image img{width:100%;height:100%;object-fit:cover;transition:transform .45s}.arch-card:hover .arch-image img{transform:scale(1.04)}.arch-body{padding:14px 14px 14px;display:grid;grid-template-columns:1fr 37px;gap:10px;align-items:end}.arch-body h3{font-size:14px;margin:0 0 6px;letter-spacing:-.02em}.arch-body p{font-size:10.5px;color:#627077;line-height:1.4;margin:0}

/* Biser band */
.biser-band{position:relative;background:linear-gradient(120deg,#101e24 0%,#0c2928 43%,#101c23 100%);color:#fff;min-height:168px;overflow:hidden}.biser-band:before{content:"";position:absolute;inset:0;background:linear-gradient(115deg,rgba(0,0,0,.05) 0 43%,rgba(255,255,255,.04) 43% 58%,transparent 58%)}.biser-band-img{position:absolute;right:0;top:0;width:48%;height:100%;object-fit:cover;object-position:center;opacity:.72}.biser-content{position:relative;z-index:2;display:grid;grid-template-columns:1.2fr 1.5fr;align-items:center;min-height:168px}.biser-copy{padding-right:30px}.biser-copy .section-label{color:#d9e4e4}.biser-copy h2{font-size:34px;letter-spacing:-.04em;margin:8px 0 4px}.biser-copy p{color:#dce5e7;font-size:15px;margin:0 0 16px}.biser-facts{display:grid;grid-template-columns:repeat(3,1fr);gap:0}.biser-fact{padding:10px 22px;border-left:1px solid rgba(255,255,255,.17)}.biser-fact strong{display:block;font-size:22px;letter-spacing:-.03em}.biser-fact span{display:block;font-size:8.5px;text-transform:uppercase;color:#cad5d7;letter-spacing:.04em;margin-top:4px;line-height:1.4}

/* Project CTA */
.project-cta{position:relative;min-height:290px;overflow:hidden;background:#fff}.project-img{position:absolute;right:0;top:0;width:61%;height:100%;object-fit:cover}.project-overlay{position:absolute;inset:0;background:linear-gradient(90deg,#fff 0%,#fff 38%,rgba(255,255,255,.84) 47%,rgba(255,255,255,.06) 70%)}.project-content{position:relative;z-index:2;padding:38px 0 36px;max-width:440px}.project-content .section-label{display:flex;align-items:center;gap:12px}.project-content .section-label:before{content:"";width:24px;height:1px;background:#2d3c42}.project-content h2{font-size:48px;line-height:.94;letter-spacing:-.055em;margin:15px 0 14px}.project-content p{font-size:14px;line-height:1.55;color:#39484f;max-width:370px;margin-bottom:22px}.project-actions{display:flex;gap:12px}

/* Inner page */
.page-hero{position:relative;background:#101c22;color:#fff;min-height:335px;overflow:hidden}.page-hero-img{position:absolute;right:0;top:0;width:54%;height:100%;object-fit:cover;opacity:.92}.page-hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#101c22 0%,#101c22 46%,rgba(16,28,34,.7) 63%,rgba(16,28,34,.1) 100%);z-index:1}.page-hero-inner{position:relative;z-index:2;padding:64px 0;max-width:610px}.breadcrumbs{font-size:10px;color:#b7c4c8;margin-bottom:22px}.breadcrumbs a{color:#dbe4e6}.page-hero h1{font-size:53px;line-height:.96;letter-spacing:-.055em;margin:0 0 18px}.page-hero p{font-size:17px;color:#d7e0e2;line-height:1.6;max-width:530px}.page-actions{display:flex;gap:12px;margin-top:24px}.content-section{padding:58px 0}.content-grid{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(280px,.65fr);gap:70px}.prose h2{font-size:35px;letter-spacing:-.04em;line-height:1.05;margin:0 0 18px}.prose h3{font-size:22px;margin:38px 0 12px}.prose p,.prose li{color:#506067;font-size:15px;line-height:1.75}.prose ul{padding-left:18px}.feature-list{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:30px 0}.feature{border:1px solid var(--line);background:#fff;padding:19px;border-radius:8px}.feature strong{font-size:13px}.feature p{font-size:12px;line-height:1.55;margin:7px 0 0}.aside-card{position:sticky;top:98px;border:1px solid #dfe5e7;border-radius:10px;background:#fff;box-shadow:var(--shadow);padding:25px}.aside-card h3{font-size:23px;letter-spacing:-.035em;margin:0 0 11px}.aside-card p{font-size:13px;color:#5f6c72;line-height:1.6}.aside-card .btn{width:100%;margin-top:12px}.related{padding:48px 0;background:#f6f8f9}.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.related-card{background:#fff;border:1px solid var(--line);border-radius:8px;padding:23px;transition:.2s}.related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.related-card h3{font-size:18px;margin:0 0 8px}.related-card p{font-size:12px;line-height:1.55;color:#617077;margin:0 0 15px}.related-card a{font-size:12px;color:var(--brand);font-weight:700}

/* Quote form */
.form-section{background:#f5f7f8;padding:55px 0}.form-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:55px}.form-copy h1,.form-copy h2{font-size:46px;line-height:.98;letter-spacing:-.05em;margin:0 0 18px}.form-copy p{font-size:15px;color:#536269;line-height:1.7}.form-points{display:grid;gap:11px;margin:28px 0}.form-point{display:flex;gap:10px;font-size:13px;color:#384950}.form-point:before{content:"✓";color:var(--brand);font-weight:900}.quote-form{background:#fff;border:1px solid #dee5e7;border-radius:10px;padding:28px;box-shadow:var(--shadow)}.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}.quote-form label{display:flex;flex-direction:column;gap:7px;font-size:10px;text-transform:uppercase;letter-spacing:.08em;font-weight:750;color:#58676e;margin-bottom:14px}.quote-form input,.quote-form select,.quote-form textarea{border:1px solid #d6dfe2;border-radius:6px;background:#fff;padding:12px 13px;font-size:13px;color:#142128;outline:none}.quote-form input:focus,.quote-form select:focus,.quote-form textarea:focus{border-color:#7d9f99;box-shadow:0 0 0 3px rgba(11,78,69,.07)}.upload-box{border:1px dashed #aebdc1;border-radius:8px;padding:21px!important;background:#f9fbfb!important;text-transform:none!important;letter-spacing:0!important;cursor:pointer}.upload-box input{padding:0;border:0}.check{flex-direction:row!important;align-items:flex-start;gap:8px!important;text-transform:none!important;letter-spacing:0!important;font-weight:500!important}.check input{width:auto;margin-top:2px}.status{padding:12px;border-radius:6px;font-size:12px;margin-bottom:15px}.status.ok{background:#e8f5f1;color:#175c4f}.status.err{background:#fff0f0;color:#8d2d2d}

/* Footer */
.footer{background:#0e181e;color:#fff;padding:45px 0 22px}.footer-grid{display:grid;grid-template-columns:1.35fr .8fr .8fr 1fr;gap:48px}.footer-logo{width:190px;height:auto;margin-bottom:16px;filter:brightness(0) invert(1);opacity:.96}.footer p{font-size:11px;line-height:1.7;color:#aebdc1;max-width:330px}.footer h4{font-size:10px;text-transform:uppercase;letter-spacing:.12em;color:#dbe4e6;margin:0 0 14px}.footer a{display:block;color:#b8c4c8;font-size:11px;margin:8px 0}.footer a:hover{color:#fff}.footer-bottom{margin-top:36px;padding-top:16px;border-top:1px solid rgba(255,255,255,.09);display:flex;justify-content:space-between;gap:20px;color:#7f9299;font-size:9.5px}.footer-bottom a{display:inline;margin:0 0 0 14px;font-size:9.5px}

/* Legal */
.legal{padding:60px 0}.legal .shell{max-width:900px}.legal h1{font-size:45px;letter-spacing:-.045em}.legal h2{font-size:23px;margin-top:36px}.legal p,.legal li{font-size:14px;color:#536269;line-height:1.75}

@media(max-width:1050px){:root{--shell:min(1180px,calc(100vw - 40px))}.brand{width:185px}.brand img{width:170px}.main-nav{gap:18px}.header-tools{gap:8px}.quote-btn{padding:0 15px}.product-grid,.arch-grid{grid-template-columns:repeat(2,1fr)}.home-hero-visual{width:68%}.hero-content{max-width:570px}.biser-content{grid-template-columns:1fr 1.15fr}.project-img{width:70%}}
@media(max-width:820px){.main-nav,.header-tools{display:none}.menu-btn{display:block;margin-left:auto}.mobile-nav{position:fixed;left:0;right:0;top:76px;bottom:0;background:#fff;padding:22px 24px;z-index:79;flex-direction:column;gap:0}.mobile-nav.open{display:flex}.mobile-nav a{font-size:18px;padding:15px 0;border-bottom:1px solid var(--line)}.home-hero{min-height:680px}.home-hero-visual{width:100%;height:54%;top:auto;bottom:0;opacity:.7}.home-hero:before{background:linear-gradient(180deg,#101d23 0%,#101d23 50%,rgba(16,29,35,.6) 75%,rgba(16,29,35,.1) 100%)}.hero-content{padding-top:42px;max-width:none}.home-hero h1{font-size:56px}.hero-trust{gap:20px;flex-wrap:wrap}.biser-content{grid-template-columns:1fr;min-height:260px;padding:34px 0}.biser-band-img{width:100%;opacity:.25}.biser-facts{margin-top:20px}.project-img{width:100%;opacity:.46}.project-overlay{background:linear-gradient(90deg,#fff 0%,#fff 58%,rgba(255,255,255,.7) 100%)}.content-grid,.form-layout{grid-template-columns:1fr}.aside-card{position:static}.page-hero-img{width:100%;opacity:.42}.page-hero:before{background:linear-gradient(90deg,#101c22 0%,rgba(16,28,34,.93) 62%,rgba(16,28,34,.45) 100%)}.footer-grid{grid-template-columns:1fr 1fr}.related-grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){:root{--shell:min(100% - 28px,1180px)}.header-inner{height:68px}.brand img{width:157px}.mobile-nav{top:68px}.home-hero{min-height:720px}.home-hero h1{font-size:43px}.home-hero .lead{font-size:15px}.hero-actions,.project-actions,.page-actions{flex-direction:column;align-items:stretch}.hero-trust{display:grid;grid-template-columns:1fr 1fr}.product-grid,.arch-grid,.biser-facts,.related-grid,.feature-list,.field-row{grid-template-columns:1fr}.product-image,.arch-image{height:190px}.section{padding:30px 0 38px}.section-head{align-items:flex-start}.section-head h2{font-size:27px}.section-link{font-size:10px}.biser-fact{border-left:0;border-top:1px solid rgba(255,255,255,.14);padding:14px 0}.project-cta{min-height:430px}.project-img{width:100%;height:48%;top:auto;bottom:0}.project-overlay{background:linear-gradient(180deg,#fff 0%,#fff 52%,rgba(255,255,255,.1) 100%)}.project-content h2{font-size:41px}.page-hero h1{font-size:42px}.footer-grid{grid-template-columns:1fr}.footer-bottom{flex-direction:column}.form-copy h1,.form-copy h2{font-size:38px}}
/* Approved-reference desktop tuning */
@media(min-width:901px){
  .home-hero{min-height:416px}
  .home-hero-visual{width:59%;height:100%;object-position:right center}
  .hero-content{padding:39px 0 28px;max-width:520px}
  .home-hero h1{font-size:57px;line-height:.92;margin:17px 0 18px}
  .home-hero .lead{font-size:16px;max-width:430px}
  .hero-actions{margin-top:22px}
  .hero-trust{margin-top:26px;gap:32px}
  .section{padding:23px 0 31px}
  .section-head{margin-bottom:13px}
  .section-head h2{font-size:28px}
  .product-grid,.arch-grid{grid-template-columns:repeat(4,1fr)}
  .product-card{min-height:236px}
  .product-image{height:143px}
  .product-body{padding:12px 13px 14px;grid-template-columns:1fr 36px}
  .product-body h3{font-size:14px;margin-bottom:6px}
  .product-body p{font-size:10px}
  .arch-image{height:135px}
  .arch-body{padding:11px 12px 12px;grid-template-columns:1fr 34px}
  .arch-body h3{font-size:13px}
  .arch-body p{font-size:9.5px}
  .circle-arrow{width:34px;height:34px}
  .biser-band,.biser-content{min-height:168px}
  .project-cta{min-height:266px}
  .project-content{padding:31px 0}
  .project-content h2{font-size:45px}
}
@media(max-width:900px){
  .product-grid,.arch-grid{grid-template-columns:repeat(2,1fr)}
}

.mobile-nav .mobile-lang{font-weight:800;color:var(--brand);margin-top:10px}


/* Production hardening v2.1 */
.brand img{width:190px;max-height:48px;object-fit:contain}
.footer-logo{width:190px;height:auto;margin-bottom:16px;filter:none!important;opacity:1}
.product-body{align-items:stretch}
.product-body>div{display:flex;flex-direction:column;min-width:0;height:100%}
.product-body h3{min-height:34px}
.product-body p{margin-top:auto;min-height:43px}
.arch-body{align-items:stretch}
.arch-body>div{display:flex;flex-direction:column;height:100%}
.arch-body p{margin-top:auto}

/* Custom RFQ upload */
.upload-box{position:relative;display:grid!important;grid-template-columns:48px 1fr;gap:14px!important;align-items:center;border:1.5px dashed #9fb0b5!important;border-radius:9px!important;padding:18px 20px!important;background:#f8fbfb!important;text-transform:none!important;letter-spacing:0!important;cursor:pointer;transition:.2s}
.upload-box:hover,.upload-box:focus-within{border-color:var(--brand)!important;background:#f2f8f6!important;box-shadow:0 0 0 3px rgba(11,78,69,.06)}
.upload-box input[type=file]{position:absolute!important;width:1px!important;height:1px!important;opacity:0!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;padding:0!important;border:0!important}
.upload-icon{width:46px;height:46px;border-radius:50%;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:21px;font-weight:800}
.upload-copy{display:flex;flex-direction:column;gap:3px;min-width:0}
.upload-copy strong{font-size:12px;color:#24333a;text-transform:none;letter-spacing:0}
.upload-copy small{font-size:10px;line-height:1.4;color:#718087;text-transform:none;letter-spacing:0;font-weight:500}
.file-name{font-size:11px;color:var(--brand);font-weight:700;text-transform:none;letter-spacing:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:3px}
.rfq-contact{margin:26px 0 0;border-top:1px solid #d9e1e4;padding-top:20px;display:grid;gap:12px}
.rfq-contact-item{display:grid;gap:3px}
.rfq-contact-item span{font-size:9px;letter-spacing:.1em;text-transform:uppercase;color:#74848b;font-weight:800}
.rfq-contact-item strong,.rfq-contact-item a{font-size:13px;color:#25343b;font-weight:700}
.form-note{margin-top:18px;padding:14px 16px;background:#fff;border:1px solid #dfe6e8;border-left:3px solid var(--brand);border-radius:6px;font-size:12px;line-height:1.55;color:#4e5f66}

/* Better focus visibility */
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(11,78,69,.22);outline-offset:3px}