:root{
  --bg:#ffffff;
  --ink:#0b1220;
  --muted:#4b5563;
  --line:#e5e7eb;
  --soft:#f8fafc;
  --blue:#1d4ed8;
  --blue2:#0b3aa9;
  --green:#16a34a;
  --shadow: 0 14px 35px rgba(2,6,23,.10);
  --shadow2: 0 10px 22px rgba(2,6,23,.08);
  --radius:20px;
  --max:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family: system-ui,-apple-system,Segoe UI,Roboto,Inter,Arial,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.6;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:var(--max);margin:0 auto;padding:0 18px}
.topbar{
  background:linear-gradient(90deg, rgba(29,78,216,.10), rgba(29,78,216,.02));
  border-bottom:1px solid var(--line);
  font-size:14px;
  color:var(--muted);
}
.topbar .row{
  display:flex;align-items:center;justify-content:space-between;
  gap:12px;padding:10px 0;flex-wrap:wrap;
}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 10px;border-radius:999px;
  border:1px solid rgba(29,78,216,.18);
  background:#fff;
}
.nav{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.92);
  backdrop-filter: blur(10px);
  border-bottom:1px solid var(--line);
}
.nav .row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 0}
.brand{
  display:flex;align-items:center;gap:10px;
  font-weight:900;letter-spacing:-.3px;
}
.logo{
  width:40px;height:40px;border-radius:14px;
  background:linear-gradient(135deg,var(--blue),var(--blue2));
  box-shadow:var(--shadow2);
}
.links{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.links a{
  padding:10px 10px;border-radius:12px;
  color:var(--muted);font-weight:650;
}
.links a:hover{background:rgba(29,78,216,.07);color:var(--ink)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:12px 16px;border-radius:14px;border:1px solid var(--line);
  background:#fff;font-weight:800;cursor:pointer;
  transition:.15s transform ease,.15s background ease;
}
.btn:hover{transform:translateY(-1px)}
.btn.primary{
  background:linear-gradient(135deg,var(--blue),var(--blue2));
  color:#fff;border-color:transparent;
}
.btn.soft{
  background:rgba(29,78,216,.08);
  border-color:rgba(29,78,216,.20);
}
.btn.green{
  background:linear-gradient(135deg,#16a34a,#0f8a3a);
  color:#fff;border-color:transparent;
}
.hamburger{
  display:none;
  width:44px;height:44px;border-radius:14px;border:1px solid var(--line);
  background:#fff;
  align-items:center;justify-content:center;
}
.hamburger span{
  width:18px;height:2px;background:var(--ink);display:block;position:relative;
}
.hamburger span::before,.hamburger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);
}
.hamburger span::before{top:-6px}
.hamburger span::after{top:6px}
.mobileMenu{
  display:none;
  border-top:1px solid var(--line);
  padding:10px 0 16px;
}
.mobileMenu a{display:block;padding:12px 10px;border-radius:12px;color:var(--muted);font-weight:700}
.mobileMenu a:hover{background:rgba(29,78,216,.07);color:var(--ink)}
.hero{
  padding:58px 0 28px;
  border-bottom:1px solid var(--line);
  background:
    radial-gradient(900px 420px at 20% 0%, rgba(29,78,216,.13), transparent 60%),
    radial-gradient(800px 380px at 90% 10%, rgba(29,78,216,.10), transparent 60%);
}
.grid2{display:grid;grid-template-columns:1.1fr .9fr;gap:22px;align-items:center}
.kicker{color:var(--muted);font-weight:750}
.h1{font-size:44px;line-height:1.06;margin:10px 0 12px;letter-spacing:-.9px}
.lead{font-size:18px;color:var(--muted);margin:0 0 18px}
.trustStrip{
  display:flex;gap:10px;flex-wrap:wrap;margin-top:10px
}
.trustStrip .tag{
  background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:8px 10px;font-size:13px;color:var(--muted);
}
.card{
  background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow);
  overflow:hidden;
}
.card .pad{padding:18px}
.heroVisual{
  height:290px;
  background:
    linear-gradient(135deg, rgba(29,78,216,.22), rgba(29,78,216,.05)),
    url("../img/hero-building.jpg") center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.kpiGrid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:12px}
.kpi{
  border:1px solid var(--line);
  background:var(--soft);
  border-radius:18px;padding:12px;
}
.kpi b{display:block;font-size:16px}
.kpi span{color:var(--muted);font-size:13px}
.section{padding:44px 0}
.h2{font-size:30px;margin:0 0 10px;letter-spacing:-.5px}
.sub{margin:0 0 18px;color:var(--muted)}
.cards3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.serviceImg{height:170px;border-bottom:1px solid var(--line);background:linear-gradient(135deg, rgba(29,78,216,.18), rgba(29,78,216,.05))}
.serviceImg.i1{background-image:url("../img/service-internal.jpg");background-size:cover;background-position:center}
.serviceImg.i2{background-image:url("../img/service-facade.jpg");background-size:cover;background-position:center}
.serviceImg.i3{background-image:url("../img/service-maintenance.jpg");background-size:cover;background-position:center}
.bullets{display:grid;gap:10px;margin-top:12px}
.bullet{
  display:flex;gap:10px;align-items:flex-start;
  padding:12px;border:1px solid var(--line);border-radius:16px;background:var(--soft);
}
.dot{
  width:10px;height:10px;border-radius:999px;margin-top:6px;
  background:linear-gradient(135deg,var(--blue),var(--blue2));
}
.split{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:14px}
.step{
  border:1px solid var(--line);border-radius:18px;background:#fff;
  padding:14px;box-shadow:var(--shadow2);
}
.step b{display:block;margin-bottom:6px}
.band{
  margin-top:18px;
  background:linear-gradient(135deg, rgba(29,78,216,.14), rgba(29,78,216,.04));
  border:1px solid rgba(29,78,216,.20);
  border-radius:22px;
  padding:18px;
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
}
.footer{
  border-top:1px solid var(--line);
  padding:26px 0;color:var(--muted);font-size:14px;
}
.footer .row{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.small{font-size:13px;color:var(--muted)}
hr.sep{border:none;border-top:1px solid var(--line);margin:20px 0}
.form{display:grid;gap:12px}
.input,textarea,select{
  width:100%;
  padding:12px 12px;border-radius:14px;border:1px solid var(--line);
  font:inherit;outline:none;background:#fff;
}
textarea{min-height:120px;resize:vertical}
.notice{
  background:#fff7ed;border:1px solid #fed7aa;color:#9a3412;
  border-radius:16px;padding:12px;
}
.wa-float{
  position:fixed;right:16px;bottom:16px;z-index:90;
  width:56px;height:56px;border-radius:18px;
  background:linear-gradient(135deg,#16a34a,#0f8a3a);
  box-shadow:var(--shadow);
  border:1px solid rgba(255,255,255,.2);
  display:inline-flex;align-items:center;justify-content:center;
}
.wa-float svg{filter:drop-shadow(0 6px 10px rgba(0,0,0,.18))}
@media (max-width: 980px){
  .grid2{grid-template-columns:1fr}
  .cards3{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr 1fr}
  .split{grid-template-columns:1fr}
  .h1{font-size:38px}
  .links{display:none}
  .hamburger{display:inline-flex}
  .mobileMenu.show{display:block}
}