:root{
  --green:#0F3B2E;
  --green2:#1F5C47;
  --dark:#16231D;
  --light:#F5F7F5;
  --white:#fff;
  --muted:#5C6A61;
  --border:#DDE5E0;
  --gold:#C7A96B;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Arial, sans-serif;color:var(--dark);background:var(--light);line-height:1.6}
a{text-decoration:none;color:inherit}
.container{width:min(1160px,92%);margin:0 auto}
.topbar{background:var(--green);color:#fff;font-size:14px;padding:8px 0}
.topbar .container{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
header{background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:50}
.nav{min-height:86px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:12px}
.brand img{height:64px;max-width:300px;object-fit:contain;display:block}
.logo-fallback{display:flex;align-items:center;gap:12px;font-weight:900;color:var(--green);letter-spacing:1px}
.logo-icon{width:46px;height:46px;border:3px solid var(--green);display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr}
.logo-icon span{border:1.5px solid var(--green)}
.nav-links{display:flex;gap:22px;align-items:center;font-weight:700;font-size:14px}
.nav-links a{color:var(--dark)}
.nav-links a:hover{color:var(--green)}
.nav-cta{background:var(--green);color:#fff;padding:12px 16px;border-radius:999px;font-weight:800;white-space:nowrap}
.hero{min-height:620px;display:flex;align-items:center;color:#fff;background:linear-gradient(90deg,rgba(15,59,46,.94),rgba(15,59,46,.62),rgba(15,59,46,.15)),url('https://images.unsplash.com/photo-1600566753190-17f0baa2a6c3?auto=format&fit=crop&w=1800&q=80') center/cover no-repeat}
.hero.small{min-height:430px}
.hero-content{max-width:760px;padding:80px 0}
.badge{display:inline-block;background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.25);padding:8px 14px;border-radius:999px;font-size:13px;font-weight:800;margin-bottom:18px}
h1{font-size:clamp(38px,6vw,70px);line-height:1.02;margin:0 0 18px;letter-spacing:-2px}
.hero p{font-size:18px;max-width:670px;margin:0 0 28px;color:rgba(255,255,255,.9)}
.buttons{display:flex;flex-wrap:wrap;gap:12px}
.btn{display:inline-flex;justify-content:center;align-items:center;padding:14px 20px;border-radius:12px;font-weight:900;background:var(--green);color:#fff;border:2px solid var(--green)}
.btn.secondary{background:#fff;color:var(--green);border-color:#fff}
.btn.outline{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
.section{padding:72px 0}
.section.white{background:#fff}
.section-title{text-align:center;max-width:800px;margin:0 auto 34px}
.section-title h2{font-size:clamp(28px,4vw,44px);margin:0 0 10px;color:var(--green);letter-spacing:-1px}
.section-title p{margin:0;color:var(--muted);font-size:16px}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.cards.two{grid-template-columns:repeat(2,1fr)}
.card{background:#fff;border:1px solid var(--border);border-radius:24px;padding:28px;box-shadow:0 14px 34px rgba(0,0,0,.045)}
.white .card{background:var(--light)}
.card h3{margin:0 0 10px;color:var(--green);font-size:22px}
.card p{margin:0;color:var(--muted)}
.product-card{padding:0;overflow:hidden}
.product-img{height:220px;background-size:cover;background-position:center}
.product-body{padding:26px}
.img-ferestre{background-image:url('https://images.unsplash.com/photo-1600585154340-be6161a56a0c?auto=format&fit=crop&w=900&q=80')}
.img-usi{background-image:url('https://images.unsplash.com/photo-1600607687939-ce8a6c25118c?auto=format&fit=crop&w=900&q=80')}
.img-aluminiu{background-image:url('https://images.unsplash.com/photo-1600566753376-12c8ab7fb75b?auto=format&fit=crop&w=900&q=80')}
.gallery{display:grid;grid-template-columns:1.25fr .75fr;gap:18px;margin-top:28px}
.gallery-main,.gallery-small{border-radius:26px;overflow:hidden;background-size:cover;background-position:center}
.gallery-main{min-height:360px;background-image:linear-gradient(180deg,rgba(0,0,0,.05),rgba(0,0,0,.35)),url('https://images.unsplash.com/photo-1600585154340-be6161a56a0c?auto=format&fit=crop&w=1300&q=80')}
.gallery-side{display:grid;gap:18px}
.gallery-small{min-height:171px}
.gallery-small.one{background-image:url('https://images.unsplash.com/photo-1600566753376-12c8ab7fb75b?auto=format&fit=crop&w=900&q=80')}
.gallery-small.two{background-image:url('https://images.unsplash.com/photo-1600607687939-ce8a6c25118c?auto=format&fit=crop&w=900&q=80')}
.offer{background:var(--green);color:#fff;border-radius:32px;padding:46px;display:grid;grid-template-columns:1.2fr .8fr;gap:28px;align-items:center}
.offer-label{display:inline-block;background:var(--gold);padding:7px 14px;border-radius:999px;font-weight:900;margin-bottom:14px;font-size:13px}
.offer h2{margin:0 0 12px;font-size:clamp(30px,4vw,44px);line-height:1.1}
.offer p{margin:0;color:rgba(255,255,255,.85);font-size:17px}
.offer-box{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);border-radius:22px;padding:24px;text-align:center}
.offer-box strong{display:block;font-size:34px;margin-bottom:6px}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.step{background:#fff;border:1px solid var(--border);border-radius:22px;padding:24px}
.step-number{width:42px;height:42px;border-radius:50%;background:var(--green);color:#fff;display:grid;place-items:center;font-weight:900;margin-bottom:14px}
.step h3{margin:0 0 8px;color:var(--green);font-size:18px}
.step p{margin:0;color:var(--muted);font-size:14px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center}
.split-img{min-height:420px;border-radius:28px;background-size:cover;background-position:center;background-image:url('https://images.unsplash.com/photo-1600566753376-12c8ab7fb75b?auto=format&fit=crop&w=1000&q=80')}
.list{display:grid;gap:12px;margin-top:18px}
.list div{background:#fff;border:1px solid var(--border);padding:16px;border-radius:16px;font-weight:700}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.contact-card{background:var(--light);border:1px solid var(--border);border-radius:28px;padding:32px}
.contact-card h2{margin:0 0 18px;color:var(--green);font-size:34px}
.contact-item{padding:14px 0;border-bottom:1px solid var(--border)}
.contact-item:last-child{border-bottom:none}
.contact-item strong{display:block;margin-bottom:4px}
.contact-item a,.contact-item span{color:var(--green);font-weight:900;font-size:18px}
.form-card{background:var(--green);color:#fff;border-radius:28px;padding:32px}
.form-card h2{margin:0 0 10px;font-size:30px}
.form-card p{color:rgba(255,255,255,.82);margin:0 0 22px}
.form-grid{display:grid;gap:12px}
input,textarea,select{width:100%;padding:14px;border-radius:12px;border:0;font:inherit}
textarea{min-height:120px;resize:vertical}
button{cursor:pointer;padding:14px;border-radius:12px;border:0;background:#fff;color:var(--green);font-weight:900;font-size:15px}
footer{background:var(--dark);color:rgba(255,255,255,.72);padding:28px 0;text-align:center;font-size:14px}
.floating-whatsapp{position:fixed;right:18px;bottom:18px;background:#25D366;color:#fff;padding:14px 18px;border-radius:999px;font-weight:900;box-shadow:0 14px 35px rgba(0,0,0,.22);z-index:60}
@media(max-width:930px){
  .nav-links,.nav-cta{display:none}.nav{min-height:76px}.brand img{height:54px;max-width:230px}
  .hero{min-height:auto}.hero-content{padding:70px 0}
  .cards,.cards.two,.steps,.offer,.contact-grid,.gallery,.split{grid-template-columns:1fr}
  .offer{padding:30px}.gallery-main,.split-img{min-height:300px}
}