:root{
  --navy:#0f2d44;
  --navy-2:#17415f;
  --blue:#2196d6;
  --text:#243442;
  --muted:#627584;
  --line:#d8e2e8;
  --soft:#f4f8fb;
  --white:#ffffff;
  --max:1180px;
  --shadow:0 18px 40px rgba(11,30,46,.10);
  --radius:20px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--text);background:var(--white);line-height:1.6}
img{max-width:100%;display:block}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
.container{width:min(var(--max),calc(100% - 32px));margin:auto}

/* Header */
.site-header{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.98);border-bottom:1px solid rgba(15,45,68,.08);backdrop-filter:blur(8px)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:14px 0}
.brand img{height:58px;width:auto}
.main-nav{display:flex;gap:22px;align-items:center}
.main-nav a{font-weight:700;color:var(--navy)}
.main-nav a:hover{text-decoration:none;color:var(--blue)}
.nav-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:12px;padding:10px 14px;font-weight:700}

/* Hero */
.hero{
  background:
    linear-gradient(100deg, rgba(15,45,68,.86) 0%, rgba(15,45,68,.74) 45%, rgba(15,45,68,.38) 100%),
    url('assets/gdsurv-ute.jpg') center/cover no-repeat;
  color:#fff;
}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:34px;align-items:center;padding:96px 0}
.kicker{display:inline-block;padding:8px 12px;border:1px solid rgba(255,255,255,.22);border-radius:999px;font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;margin-bottom:16px;color:#dcefff}
.hero h1{font-size:clamp(40px,5vw,64px);line-height:1.02;margin:0 0 16px}
.hero p{font-size:19px;max-width:720px;margin:0 0 20px;color:#e8f4ff}
.tagline{font-weight:700;margin:0 0 26px}
.hero-card{background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.16);border-radius:24px;padding:26px;box-shadow:var(--shadow)}
.hero-points{list-style:none;padding:0;margin:0}
.hero-points li{padding:12px 0;border-bottom:1px solid rgba(255,255,255,.16);font-weight:700}
.hero-points li:last-child{border-bottom:none}
.hero-actions,.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-block;padding:14px 22px;border-radius:12px;background:var(--blue);color:#fff;font-weight:700;border:1px solid transparent}
.btn:hover{text-decoration:none;filter:brightness(1.03)}
.btn-secondary{background:transparent;border-color:rgba(255,255,255,.34);color:#fff}
.btn-dark{background:var(--navy)}

/* Sections */
.section{padding:78px 0}
.section.alt{background:var(--soft)}
.section-title{font-size:clamp(30px,3vw,44px);line-height:1.08;margin:0 0 12px;color:var(--navy)}
.section-lead{font-size:18px;color:var(--muted);max-width:820px;margin:0 0 28px}
.band{background:var(--navy);color:#fff}
.band-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;padding:26px 0}
.band strong{display:block;margin-bottom:6px}
.grid-2,.grid-3{display:grid;gap:24px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:24px;box-shadow:var(--shadow)}
.card h3{margin-top:0;color:var(--navy)}
.service-card{display:flex;flex-direction:column;gap:12px}
.service-card .link,.project-card .link{margin-top:auto;font-weight:700}
.project-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:14px;margin-bottom:16px}
.visual{background:linear-gradient(180deg,#edf5fa,#fff);border:1px solid var(--line);border-radius:24px;padding:18px}
.visual img{width:100%;border-radius:16px;aspect-ratio:16/10;object-fit:cover}
.split{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start}
.list-check{padding-left:20px}
.list-check li{margin-bottom:10px}

.page-hero{background:linear-gradient(135deg,#f7fbfe,#e8f2f8);border-bottom:1px solid var(--line)}
.page-hero .container{padding:64px 0}
.page-hero h1{font-size:clamp(34px,4.2vw,56px);line-height:1.05;margin:0 0 14px;color:var(--navy)}
.breadcrumb{font-size:14px;color:var(--muted);margin-bottom:14px}

.cta{background:linear-gradient(135deg,var(--navy),var(--navy-2));color:#fff;border-radius:24px;padding:36px;display:flex;justify-content:space-between;gap:24px;align-items:center}
.cta h2{margin:0 0 10px;color:#fff}
.cta p{margin:0;color:#dcefff}

.contact-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:24px;box-shadow:var(--shadow)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
label{display:block;font-weight:700;margin-bottom:8px;color:var(--navy)}
input,textarea,select{width:100%;padding:14px;border:1px solid #cad6de;border-radius:12px;font:inherit}
textarea{min-height:160px;resize:vertical}
.full{grid-column:1/-1}

/* Footer */
.footer{background:#0b1f2e;color:#fff;padding:40px 0;text-align:center}
.footer p{margin:0 0 10px}
.footer p:last-child{margin-bottom:0}

/* Mobile */
@media (max-width:1000px){
  .hero-grid,.grid-3,.grid-2,.split,.band-grid,.form-grid{grid-template-columns:1fr}
  .main-nav{display:none;position:absolute;top:88px;left:16px;right:16px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:12px;box-shadow:var(--shadow)}
  .main-nav.open{display:flex;flex-direction:column;align-items:flex-start}
  .nav-toggle{display:block}
  .cta{flex-direction:column;align-items:flex-start}
}
@media (max-width:700px){
  .brand img{height:50px}
  .hero-grid{padding:72px 0}
  .hero h1{font-size:36px}
  .hero p{font-size:17px}
  .section{padding:62px 0}
}