*{box-sizing:border-box}
:root{
  --ink:#101010;
  --paper:#f4f3ef;
  --white:#ffffff;
  --line:#d8d7d2;
  --muted:#676762;
  --soft:#e8e7e1;
}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--ink);
  background:var(--paper);
  font-family:Inter,Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
.container{width:min(1180px,calc(100% - 48px));margin:0 auto}
.site-header{
  position:sticky;top:0;z-index:50;background:rgba(244,243,239,.92);
  backdrop-filter:blur(14px);border-bottom:1px solid rgba(16,16,16,.12)
}
.nav-wrap{height:82px;display:flex;align-items:center;gap:36px}
.brand{display:inline-flex;align-items:center;gap:12px}
.brand-mark{width:40px;height:40px;display:grid;gap:4px;align-content:center}
.brand-mark span{display:block;height:4px;background:var(--ink);transform:skewX(-28deg)}
.brand-mark span:nth-child(1){width:28px}
.brand-mark span:nth-child(2){width:36px}
.brand-mark span:nth-child(3){width:23px}
.brand-text{display:flex;flex-direction:column;line-height:1}
.brand-text strong{font-family:Manrope,sans-serif;font-size:15px;letter-spacing:.12em}
.brand-text small{font-size:8px;letter-spacing:.22em;margin-top:7px;color:#777}
.desktop-nav{display:flex;align-items:center;gap:30px;margin-left:auto}
.desktop-nav a{font-size:13px;font-weight:600}
.desktop-nav a:hover{opacity:.55}
.btn{
  display:inline-flex;align-items:center;justify-content:center;min-height:46px;
  padding:0 22px;font-size:13px;font-weight:700;border:1px solid var(--ink);
  transition:.2s ease
}
.btn-dark{background:var(--ink);color:var(--white)}
.btn-dark:hover{background:#2b2b2b}
.btn-light{background:var(--white);border-color:var(--white);color:var(--ink)}
.btn-light:hover{background:#dededb}
.menu-btn{display:none;background:none;border:none;font-size:24px}
.mobile-nav{padding:8px 24px 20px;border-top:1px solid var(--line)}
.mobile-nav a{display:block;padding:12px 0;font-weight:600}

.hero{
  min-height:760px;position:relative;overflow:hidden;background:var(--ink);color:var(--white);
  display:flex;align-items:center
}
.hero-grid{
  position:absolute;inset:0;opacity:.18;
  background-image:
  linear-gradient(rgba(255,255,255,.12) 1px,transparent 1px),
  linear-gradient(90deg,rgba(255,255,255,.12) 1px,transparent 1px);
  background-size:72px 72px;
}
.hero-content{position:relative;z-index:2;padding:110px 0}
.eyebrow,.section-label{font-size:11px;font-weight:700;letter-spacing:.18em}
.eyebrow{color:#bdbdb8;margin-bottom:28px}
.hero h1,.section h2{
  font-family:Manrope,sans-serif;margin:0;letter-spacing:-.045em
}
.hero h1{font-size:clamp(58px,8vw,112px);line-height:.91;max-width:950px}
.hero h1 span{color:#aaa9a4}
.hero-copy{font-size:18px;line-height:1.7;color:#cfcfca;max-width:610px;margin:32px 0}
.hero-actions{display:flex;align-items:center;gap:28px}
.text-link{font-size:13px;font-weight:700;color:#e7e7e3}
.text-link span{margin-left:8px}
.hero-stats{display:flex;gap:58px;margin-top:82px}
.hero-stats div{display:flex;flex-direction:column;gap:7px}
.hero-stats strong{font-family:Manrope,sans-serif;font-size:25px}
.hero-stats span{color:#8f8f8b;font-size:11px}
.hero-visual{position:absolute;right:-80px;bottom:-15px;width:46%;height:65%;opacity:.7}
.steel-stack{position:absolute;right:0;height:58px;border:2px solid #777;transform:skewY(-7deg)}
.s1{bottom:20px;width:78%}.s2{bottom:92px;width:65%}.s3{bottom:164px;width:53%}
.steel-stack:before,.steel-stack:after{content:"";position:absolute;inset:12px 0 auto;height:1px;background:#777}
.steel-stack:after{top:34px}
.accent-line{position:absolute;right:10%;bottom:258px;width:58%;height:2px;background:#fff;transform:rotate(-7deg)}

.section{padding:120px 0}
.split{display:grid;grid-template-columns:1fr 1fr;gap:90px}
.section-label{color:#777;margin-bottom:28px}
.section-label.light{color:#777}
.section h2{font-size:clamp(42px,5vw,72px);line-height:1.02}
.intro-copy{font-size:18px;line-height:1.75;color:#4d4d49;padding-top:52px}
.intro-copy p{margin:0 0 22px}

.products{background:#fff}
.section-head{display:flex;justify-content:space-between;gap:40px;align-items:flex-end;margin-bottom:58px}
.section-head p{max-width:330px;color:#777;line-height:1.65;margin:0}
.product-grid{display:grid;grid-template-columns:repeat(2,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}
.product-card{position:relative;min-height:430px;padding:42px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.product-no{position:absolute;right:34px;top:28px;color:#aaa;font:700 11px/1 Inter;letter-spacing:.15em}
.product-icon{height:92px;margin-bottom:42px;position:relative}
.product-card h3{font-family:Manrope,sans-serif;font-size:28px;margin:0 0 18px;letter-spacing:-.025em}
.product-card p{color:#666;line-height:1.7;max-width:470px}
.product-card ul{padding:0;margin:25px 0 0;list-style:none;border-top:1px solid var(--soft)}
.product-card li{font-size:13px;padding:11px 0;border-bottom:1px solid var(--soft)}
.rebar-icon span{position:absolute;left:5px;top:24px;width:150px;height:8px;border:2px solid #111;transform:rotate(-8deg)}
.rebar-icon span:nth-child(2){top:43px;left:20px}
.rebar-icon span:nth-child(3){top:62px;left:35px}
.sections-icon .beam{position:absolute;left:15px;top:12px;width:88px;height:74px;border-left:10px solid #111;border-right:10px solid #111}
.sections-icon .beam:before,.sections-icon .beam:after{content:"";position:absolute;left:-26px;width:122px;height:10px;background:#111}
.sections-icon .beam:before{top:0}.sections-icon .beam:after{bottom:0}
.sections-icon .angle{position:absolute;left:125px;top:22px;width:62px;height:62px;border-left:9px solid #777;border-bottom:9px solid #777}
.gfrp-icon span{position:absolute;left:4px;width:168px;height:7px;border:2px dashed #111;transform:rotate(8deg)}
.gfrp-icon span:nth-child(1){top:15px}.gfrp-icon span:nth-child(2){top:34px;left:15px}.gfrp-icon span:nth-child(3){top:53px;left:26px}.gfrp-icon span:nth-child(4){top:72px;left:37px}
.fastener-icon .bolt{position:absolute;left:25px;top:31px;width:135px;height:14px;background:#111;transform:rotate(-11deg)}
.fastener-icon .bolt:before{content:"";position:absolute;left:-18px;top:-8px;width:28px;height:30px;background:#111;clip-path:polygon(25% 0,75% 0,100% 50%,75% 100%,25% 100%,0 50%)}
.fastener-icon .nut{position:absolute;left:165px;top:20px;width:44px;height:44px;border:9px solid #777;clip-path:polygon(25% 0,75% 0,100% 50%,75% 100%,25% 100%,0 50%)}

.why{background:var(--ink);color:#fff}
.why-grid{display:grid;grid-template-columns:1fr 1fr;gap:100px;align-items:start}
.why h2{font-size:clamp(46px,5.5vw,78px)}
.why-points{border-top:1px solid #3b3b3b}
.why-item{display:grid;grid-template-columns:52px 1fr;gap:24px;padding:30px 0;border-bottom:1px solid #3b3b3b}
.why-item>span{font-size:11px;color:#777}
.why-item h4{font:700 18px/1.3 Manrope,sans-serif;margin:0 0 10px}
.why-item p{margin:0;color:#a8a8a3;line-height:1.65}

.cta{background:#ecebe6}
.cta-box{display:grid;grid-template-columns:1.1fr .9fr;gap:80px;align-items:start}
.cta p{font-size:17px;color:#60605c;line-height:1.7;max-width:560px}
.contact-card{background:#fff;border:1px solid var(--line);padding:10px 30px}
.contact-row{display:flex;justify-content:space-between;gap:30px;padding:22px 0;border-bottom:1px solid var(--soft)}
.contact-row span{font-size:12px;color:#888}
.contact-row strong{font-size:13px;text-align:right}
.contact-note{padding:24px 0;color:#888;font-size:12px;line-height:1.6}

footer{padding:34px 0;background:#0b0b0b;color:#fff}
.footer-wrap{display:flex;align-items:center;justify-content:space-between;gap:40px}
.footer-brand .brand-mark span{background:#fff}
.footer-meta{display:flex;gap:28px;color:#777;font-size:10px;text-transform:uppercase;letter-spacing:.08em}

@media(max-width:900px){
  .desktop-nav,.nav-cta{display:none}.menu-btn{display:block;margin-left:auto}
  .hero{min-height:700px}.hero-visual{opacity:.35;width:70%}
  .hero-stats{gap:26px;flex-wrap:wrap}
  .split,.why-grid,.cta-box{grid-template-columns:1fr;gap:48px}
  .intro-copy{padding-top:0}
  .section-head{align-items:flex-start;flex-direction:column}
  .product-grid{grid-template-columns:1fr}
}
@media(max-width:600px){
  .container{width:min(100% - 28px,1180px)}
  .nav-wrap{height:72px}
  .hero-content{padding:90px 0 70px}
  .hero h1{font-size:54px}
  .hero-copy{font-size:16px}
  .hero-actions{align-items:flex-start;flex-direction:column}
  .hero-stats{margin-top:56px}
  .section{padding:82px 0}
  .section h2{font-size:42px}
  .product-card{padding:30px;min-height:auto}
  .footer-wrap,.footer-meta{align-items:flex-start;flex-direction:column}
  .contact-row{flex-direction:column}.contact-row strong{text-align:left}
}