:root{
  --black:#030405;
  --carbon:#080b0f;
  --panel:#11161d;
  --panel2:#151b24;
  --gold:#d2a75d;
  --gold2:#b8893f;
  --white:#f8f4eb;
  --muted:#aeb4bd;
  --line:rgba(255,255,255,.12);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family: Arial, Helvetica, sans-serif;
  background:var(--black);
  color:var(--white);
  line-height:1.65;
}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
.container{width:min(1180px,88%);margin:auto}
.nav{
  position:sticky;top:0;z-index:100;
  background:rgba(3,4,5,.78);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  width:min(1180px,88%);margin:auto;
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 0;
}
.logo{font-weight:900;letter-spacing:1px}
.logo span{color:var(--gold)}
.menu{display:flex;gap:22px;font-size:12px;text-transform:uppercase;letter-spacing:1px;color:#ddd}
.menu a{transition:.3s}
.menu a:hover,.menu a.active{color:var(--gold)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 22px;border-radius:50px;
  background:var(--gold);color:#111;font-weight:900;
  border:1px solid var(--gold);transition:.3s;
}
.btn:hover{transform:translateY(-2px);box-shadow:0 18px 45px rgba(210,167,93,.22)}
.btn-ghost{background:transparent;color:var(--white);border-color:rgba(255,255,255,.28)}
.hero{
  min-height:88vh;
  display:grid;align-items:center;
  background:linear-gradient(90deg,rgba(0,0,0,.84),rgba(0,0,0,.35)),url('https://images.unsplash.com/photo-1600607688969-a5bfcd646154?auto=format&fit=crop&w=1900&q=80') center/cover;
}
.hero h1{font-size:clamp(46px,7vw,96px);line-height:.92;letter-spacing:-3px;margin:18px 0}
.hero p{font-size:19px;color:#d2d6dc;max-width:720px}
.kicker{color:var(--gold);font-size:12px;text-transform:uppercase;letter-spacing:4px;font-weight:900}
.hero-actions{margin-top:30px;display:flex;gap:14px;flex-wrap:wrap}
.page-hero{
  padding:95px 0 80px;
  background:radial-gradient(circle at top right,rgba(210,167,93,.17),transparent 35%),linear-gradient(180deg,#0b0f14,#030405);
  border-bottom:1px solid var(--line);
}
.page-hero h1{font-size:clamp(42px,6vw,78px);line-height:1;margin:14px 0}
.page-hero p{color:var(--muted);max-width:760px;font-size:18px}
.section{padding:90px 0}
.section-title{text-align:center;margin-bottom:46px}
.section-title h2{font-size:clamp(34px,5vw,62px);line-height:1.05;margin-top:10px}
.section-title p{color:var(--muted);max-width:740px;margin:16px auto 0}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.card{
  background:linear-gradient(145deg,var(--panel),#080b0f);
  border:1px solid var(--line);
  border-radius:26px;
  padding:28px;
  transition:.35s;
}
.card:hover{transform:translateY(-7px);border-color:rgba(210,167,93,.55)}
.card h3{font-size:24px;margin:12px 0}
.card p,.card li{color:var(--muted)}
.card ul{padding-left:18px;margin-top:12px}
.icon{font-size:38px}
.feature-img{
  border-radius:30px;overflow:hidden;border:1px solid var(--line);
  min-height:390px;background:center/cover;
}
.split{display:grid;grid-template-columns:1fr 1fr;gap:46px;align-items:center}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:25px}
.stat{padding:22px;border:1px solid var(--line);border-radius:20px;background:rgba(255,255,255,.035)}
.stat b{color:var(--gold);font-size:34px}
.service-detail{
  display:grid;grid-template-columns:.85fr 1.15fr;gap:34px;
  padding:34px;border:1px solid var(--line);border-radius:32px;
  background:linear-gradient(135deg,#11161d,#06080b);
  margin-bottom:28px;
}
.service-detail img{height:330px;width:100%;object-fit:cover;border-radius:24px}
.service-detail h2{font-size:36px;line-height:1.1;margin-bottom:14px}
.badges{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0}
.badge{border:1px solid rgba(210,167,93,.35);color:var(--gold);padding:8px 12px;border-radius:50px;font-size:12px;font-weight:800}
.project-card{
  border:1px solid var(--line);border-radius:30px;overflow:hidden;background:var(--panel);
}
.project-cover{height:290px;width:100%;object-fit:cover}
.project-body{padding:26px}
.project-body h3{font-size:26px}
.project-body p{color:var(--muted);margin:10px 0 18px}
.gallery-strip{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin-top:15px}
.gallery-strip img{height:78px;width:100%;object-fit:cover;border-radius:10px;cursor:pointer;opacity:.8;transition:.2s}
.gallery-strip img:hover{opacity:1;transform:scale(1.03)}
.calculator-wrap{
  display:grid;grid-template-columns:.9fr 1.1fr;gap:34px;align-items:start;
}
.calc-panel{
  background:linear-gradient(145deg,#141a23,#05070a);
  border:1px solid rgba(210,167,93,.28);
  border-radius:32px;padding:32px;
  box-shadow:0 30px 90px rgba(0,0,0,.35);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
label{display:block;color:#d2d2d2;font-weight:700;font-size:13px;margin-bottom:7px}
select,input,textarea{
  width:100%;padding:14px 15px;border-radius:14px;
  background:#070a0e;color:white;border:1px solid rgba(255,255,255,.14);
  outline:none;
}
.field{margin-bottom:16px}
.result-box{
  background:rgba(210,167,93,.12);
  border:1px solid rgba(210,167,93,.32);
  border-radius:24px;padding:24px;margin-top:20px;
}
.result-box small{color:#d8c099;font-weight:800;text-transform:uppercase;letter-spacing:2px}
.result-box h2{font-size:38px;color:var(--gold);line-height:1;margin:10px 0}
.breakdown{display:grid;gap:10px;margin-top:18px}
.breakdown div{display:flex;justify-content:space-between;border-bottom:1px solid rgba(255,255,255,.08);padding-bottom:8px;color:var(--muted)}
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.time{background:#05070a;padding:34px;min-height:210px}
.time span{font-size:42px;color:var(--gold);font-weight:900}
.contact-card{
  background:linear-gradient(145deg,var(--panel),#06080b);
  border:1px solid var(--line);border-radius:30px;padding:34px;
}
footer{border-top:1px solid var(--line);background:#010101;padding:45px 0;color:var(--muted)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px}
.whatsapp{
  position:fixed;right:22px;bottom:22px;width:60px;height:60px;border-radius:50%;
  background:#25d366;color:#fff;display:grid;place-items:center;font-size:28px;z-index:200;
}
.modal{position:fixed;inset:0;background:rgba(0,0,0,.88);z-index:500;display:none;align-items:center;justify-content:center;padding:30px}
.modal.open{display:flex}
.modal img{max-height:82vh;border-radius:20px;border:1px solid var(--line)}
.close-modal{position:absolute;top:24px;right:30px;background:var(--gold);color:#111;border:0;border-radius:50%;width:44px;height:44px;font-size:24px;cursor:pointer}
@media(max-width:900px){
  .menu{display:none}
  .hero h1{letter-spacing:-1px}
  .grid-3,.grid-4,.split,.service-detail,.calculator-wrap,.timeline,.footer-grid,.form-grid{grid-template-columns:1fr}
  .service-detail img{height:260px}
  .stats{grid-template-columns:1fr}
}