:root{
  --primary:#0B1F3B;
  --accent:#D72638;
  --bg:#F5F7FA;
  --text:#0F172A;
  --muted:#64748B;
  --card:#FFFFFF;
  --border:#E5E7EB;
  --radius:16px;
}

*{box-sizing:border-box}
body{
  margin:0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color:var(--text);
  background:var(--bg);
}

.container{width:min(1100px, 92%); margin:0 auto;}
.topbar{background:var(--primary); position:sticky; top:0; z-index:50; box-shadow:0 6px 18px rgba(0,0,0,.10);}
.topbar__inner{display:flex; align-items:center; justify-content:space-between; padding:14px 0;}
.brand__logo{height:44px; width:auto; display:block;}

.nav{display:flex; gap:16px; align-items:center;}
.nav a{color:#fff; text-decoration:none; font-weight:600; opacity:.92}
.nav a:hover{opacity:1}

.btn{
  display:inline-flex; align-items:center; justify-content:center;
  padding:10px 14px; border-radius:999px;
  background:#fff; color:var(--primary); text-decoration:none; font-weight:800;
  border:1px solid rgba(255,255,255,.35);
}
.btn-accent{background:var(--accent); color:#fff; border-color:transparent;}

.main{padding:28px 0 50px}

.card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  box-shadow:0 10px 30px rgba(2, 6, 23, .06);
}

.hero{
  background: linear-gradient(135deg, rgba(11,31,59,1), rgba(11,31,59,.78));
  color:#fff;
  border-radius:24px;
  padding:34px;
  overflow:hidden;
}
.hero h1{margin:0 0 10px; font-size: clamp(26px, 3.2vw, 44px); letter-spacing:-.02em;}
.hero p{margin:0 0 18px; color:rgba(255,255,255,.86); font-size:18px; line-height:1.5;}
.hero__cta{display:flex; gap:12px; flex-wrap:wrap; margin-top:16px;}

.grid{display:grid; gap:16px;}
.grid-3{grid-template-columns:repeat(3, 1fr);}
@media (max-width: 900px){ .grid-3{grid-template-columns:1fr;} .nav{display:none;} }

.section{margin-top:18px;}
.section h2{margin:0 0 10px; font-size:22px;}
.muted{color:var(--muted);}

.footer{
  background:#0A1630;
  color:#fff;
  padding:26px 0;
}
.footer__inner{display:flex; align-items:flex-start; justify-content:space-between; gap:18px; flex-wrap:wrap;}
.footer__links{display:flex; gap:12px; flex-wrap:wrap;}
.footer__links a{color:#fff; opacity:.85; text-decoration:none}
.footer__links a:hover{opacity:1}

.form{display:grid; gap:12px;}
.input, textarea{
  width:100%; padding:12px 14px; border-radius:12px;
  border:1px solid var(--border); outline:none;
  background:#fff; font-size:15px;
}
textarea{min-height:120px; resize:vertical;}