:root{
  --primary:#111184;--primary-dark:#c94d00;--dark:#3D5E96;--dark2:#232323;
  --text:#222;--muted:#666;--light:#f5f4f1;--white:#fff;--border:#e6e3de;
  --radius:18px;--container:1180px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:Inter,Arial,sans-serif;color:var(--text);line-height:1.6;background:#fff}
a{text-decoration:none;color:inherit}
.container{width:min(var(--container),calc(100% - 40px));margin:auto}
.header{position:fixed;top:0;left:0;width:100%;z-index:20;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border-bottom:1px solid #eee}
.nav{height:78px;display:flex;align-items:center;justify-content:space-between}
.logo{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;letter-spacing:-.5px}
.logo b{color:var(--primary)}
.logo-mark{display:grid;place-items:center;width:39px;height:39px;background:var(--primary);color:#fff;border-radius:9px;font-size:13px}
.menu{display:flex;align-items:center;gap:25px;font-size:13px;font-weight:600}
.menu a:not(.btn):hover{color:var(--primary)}
.menu-toggle{display:none;border:0;background:none;font-size:27px}
.btn{display:inline-flex;align-items:center;justify-content:center;background:var(--primary);color:#fff;padding:14px 24px;border-radius:7px;font-weight:700;font-size:13px;border:1px solid var(--primary);transition:.25s;cursor:pointer}
.btn:hover{background:var(--primary-dark);transform:translateY(-2px)}
.btn-small{padding:10px 16px}
.btn-outline{background:transparent;border-color:#fff;color:#fff}
.btn-outline:hover{background:#fff;color:var(--dark)}
.hero{min-height:760px;display:flex;align-items:center;position:relative;overflow:hidden;background:
linear-gradient(90deg,rgba(10,10,10,.9),rgba(10,10,10,.55),rgba(10,10,10,.2)),
url("https://contextotecnologia.com.br/slide.png") center/cover}
.hero-content{padding-top:80px;color:#fff;position:relative;z-index:2;max-width:760px;margin-left:max(20px,calc((100vw - var(--container))/2))}
.eyebrow,.section-tag{display:inline-block;color:var(--primary);font-size:11px;font-weight:800;letter-spacing:2px;margin-bottom:17px}
.eyebrow{color:#fff}
.hero h1{font-size:clamp(45px,6vw,76px);line-height:1.03;letter-spacing:-3px;margin-bottom:25px}
.hero h1 strong{color:var(--primary)}
.hero p{font-size:18px;max-width:650px;color:#e7e7e7;margin-bottom:30px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.hero-stats{display:flex;gap:45px;margin-top:65px;border-top:1px solid rgba(255,255,255,.25);padding-top:25px}
.hero-stats div{display:flex;flex-direction:column}.hero-stats strong{font-size:20px}.hero-stats span{font-size:12px;color:#bbb}
.section{padding:105px 0}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
.intro h2,.section-heading h2,.comparison h2,.contact h2{font-size:clamp(32px,4vw,52px);line-height:1.1;letter-spacing:-1.8px;margin-bottom:22px}
.intro p,.section-heading p,.comparison p{color:var(--muted);margin-bottom:15px;max-width:620px}
.text-link{display:inline-block;margin-top:15px;color:var(--primary);font-weight:800}
.feature-card{min-height:480px;border-radius:var(--radius);overflow:hidden;position:relative;background:linear-gradient(135deg,#d8d5cf,#8f8c86)}
.block-pattern{position:absolute;inset:0;opacity:.55;background:
linear-gradient(90deg,transparent 49%,rgba(0,0,0,.12) 50%,transparent 51%),
linear-gradient(0deg,transparent 49%,rgba(0,0,0,.12) 50%,transparent 51%);
background-size:145px 72px}
.col-md-12 img {
    max-width: 100%;
    height: auto;
}
.card-copy{position:absolute;left:30px;right:30px;bottom:30px;background:rgba(20,20,20,.9);color:#fff;padding:25px;border-radius:12px}
.card-copy span{font-size:10px;color:var(--primary);font-weight:800;letter-spacing:1.5px}.card-copy strong{display:block;font-size:25px;line-height:1.15;margin-top:7px}
.dark{background:var(--dark);color:#fff}.light{color:#ff9a5c}.center{text-align:center}.center p{margin-left:auto;margin-right:auto}
.benefits{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:#444;margin-top:55px}
.benefits article{background:var(--dark);padding:34px;min-height:210px}.number{font-size:11px;color:var(--primary);font-weight:800}.benefits h3{font-size:21px;margin:25px 0 8px}.benefits p{font-size:14px;color:#aaa}
.products{background:var(--light)}.section-heading{margin-bottom:50px}.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.product-card{background:#fff;border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);transition:.25s}.product-card:hover{transform:translateY(-6px);box-shadow:0 18px 40px rgba(0,0,0,.09)}
.product-image{height:260px;background-size:cover;background-position:center}
.concrete{background-image:url("https://images.unsplash.com/photo-1581094794329-c8112a89af12?auto=format&fit=crop&w=900&q=80")}
.structural{background-image:url("https://images.unsplash.com/photo-1504307651254-35680f356dfd?auto=format&fit=crop&w=900&q=80")}
.channel{background-image:url("https://images.unsplash.com/photo-1590725121839-892b458a74fe?auto=format&fit=crop&w=900&q=80")}
.product-body{padding:27px}.product-body>span{color:var(--primary);font-size:11px;font-weight:800}.product-body h3{font-size:23px;margin:8px 0}.product-body p{color:var(--muted);font-size:14px;margin-bottom:20px}.product-body a{font-weight:800;color:var(--primary);font-size:13px}
.applications{background:#fff}.application-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}.application-grid>div{padding:35px 25px;border-right:1px solid var(--border)}.application-grid>div:last-child{border-right:0}.application-grid span{color:var(--primary);font-size:11px;font-weight:800}.application-grid h3{margin:22px 0 5px;font-size:20px}.application-grid p{font-size:13px;color:var(--muted)}
.comparison{background:#eeeae3}.comparison-inner{align-items:stretch}.check-list{list-style:none;margin-top:25px}.check-list li{margin:11px 0;font-weight:600}.check-list li::before{content:"✓";color:var(--primary);font-weight:900;margin-right:10px}.quote-box{background:var(--dark);color:#fff;border-radius:var(--radius);padding:50px;display:flex;flex-direction:column;justify-content:center}.quote-box span{color:var(--primary);font-weight:800;font-size:11px;letter-spacing:2px}.quote-box strong{font-size:34px;line-height:1.15;margin:20px 0 30px}.quote-box .btn{align-self:flex-start}
.faq{background:#fff}.faq-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:80px}.accordion{border-top:1px solid var(--border)}.faq-item{border-bottom:1px solid var(--border)}.faq-item button{width:100%;padding:22px 0;background:none;border:0;display:flex;justify-content:space-between;text-align:left;font:600 15px Inter;cursor:pointer}.faq-item button span{color:var(--primary);font-size:20px}.answer{display:none;padding:0 35px 22px 0;color:var(--muted);font-size:14px}.faq-item.open .answer{display:block}.faq-item.open button span{transform:rotate(45deg)}
.contact{background:var(--dark);color:#fff}.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:90px}.contact h2{max-width:600px}.contact>div>p{color:#aaa;max-width:550px}.contact-info{display:flex;gap:55px;margin-top:35px}.contact-info p{color:#aaa;font-size:13px}.contact-info strong{color:#fff}
.contact-form{background:#fff;color:#222;border-radius:var(--radius);padding:35px}.contact-form label{display:block;font-size:12px;font-weight:700;margin-bottom:16px}.contact-form input,.contact-form textarea{display:block;width:100%;margin-top:7px;border:1px solid #ddd;border-radius:7px;padding:13px;font:14px Inter;outline:none}.contact-form input:focus,.contact-form textarea:focus{border-color:var(--primary)}.contact-form small{display:block;color:#777;margin-top:12px;font-size:10px}
footer{background:#111;color:#aaa;padding-top:50px}.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:40px;padding-bottom:40px}.footer-logo{color:#fff;align-self:start}.footer-grid strong{color:#fff;font-size:14px}.footer-grid p{font-size:12px;margin-top:8px}.footer-bottom{border-top:1px solid #292929;text-align:center;padding:18px;font-size:11px}
@media(max-width:900px){
 .menu-toggle{display:block}.menu{display:none;position:absolute;top:78px;left:0;width:100%;background:#fff;padding:20px;flex-direction:column;align-items:stretch;box-shadow:0 10px 20px rgba(0,0,0,.08)}.menu.active{display:flex}.menu .btn{text-align:center}
 .hero{min-height:700px}.hero-content{margin:auto}.hero-stats{gap:20px}.two-col,.contact-grid,.faq-grid{grid-template-columns:1fr;gap:45px}.benefits{grid-template-columns:repeat(2,1fr)}.product-grid{grid-template-columns:1fr 1fr}.application-grid{grid-template-columns:1fr 1fr}.application-grid>div:nth-child(2){border-right:0}.application-grid>div{border-bottom:1px solid var(--border)}
}
@media(max-width:600px){
 .container{width:min(var(--container),calc(100% - 28px))}.nav{height:68px}.menu{top:68px}.hero{min-height:680px}.hero h1{font-size:46px;letter-spacing:-2px}.hero-stats{display:grid;grid-template-columns:1fr 1fr;margin-top:40px}.section{padding:75px 0}.benefits,.product-grid,.application-grid{grid-template-columns:1fr}.benefits article{min-height:auto}.application-grid>div{border-right:0!important}.contact-info{display:block}.contact-info p{margin-bottom:15px}.footer-grid{grid-template-columns:1fr}.quote-box{padding:35px}.feature-card{min-height:380px}
}