:root{
  --blue:#0b3c5d;
  --blue2:#145da0;
  --ink:#0b0f14;
  --bg:#ffffff;
  --muted:#6b7280;
  --card:#f6f8fb;
  --line:#e5e7eb;
}

*{box-sizing:border-box}
body{
  margin:0;
  font-family: Arial, sans-serif;
  color:var(--ink);
  background:var(--bg);
}

.container{
  width:min(1100px, 92%);
  margin:0 auto;
}

header{
  position:sticky;
  top:0;
  background:rgba(255,255,255,.9);
  backdrop-filter: blur(8px);
  border-bottom:1px solid var(--line);
  z-index:10;
}

.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:14px 0;
  gap:14px;
}

.brand{
  display:flex;
  align-items:center;
  gap:10px;
  text-decoration:none;
  color:var(--ink);
  font-weight:800;
  letter-spacing:.5px;
}

.brand img{height:34px; width:auto}

.menu{
  display:flex;
  gap:18px;
  align-items:center;
  flex-wrap:wrap;
}

.menu a{
  text-decoration:none;
  color:var(--ink);
  font-weight:600;
  opacity:.9;
}
.menu a:hover{opacity:1; color:var(--blue2)}

.btn{
  display:inline-block;
  padding:10px 14px;
  border-radius:10px;
  text-decoration:none;
  font-weight:700;
  border:1px solid var(--line);
  color:var(--ink);
  background:white;
}
.btn.primary{
  background:linear-gradient(135deg,var(--blue),var(--blue2));
  color:white;
  border:none;
}
.btn:hover{transform:translateY(-1px)}
.small{font-size:.95rem; color:var(--muted)}

.hero{
  padding:70px 0 40px;
  background:
    radial-gradient(1200px 400px at 20% 10%, rgba(20,93,160,.15), transparent 60%),
    radial-gradient(900px 300px at 80% 0%, rgba(11,60,93,.12), transparent 60%);
  border-bottom:1px solid var(--line);
}
.hero h1{
  font-size:44px;
  margin:0 0 10px;
  color:var(--ink);
}
.hero h1 span{color:var(--blue)}
.hero p{max-width:760px; margin:0 0 18px; color:var(--muted); font-size:18px; line-height:1.55}

.grid{
  display:grid;
  gap:16px;
  grid-template-columns: repeat(3, 1fr);
  margin:26px 0 0;
}
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:16px;
  padding:16px;
}
.card h3{margin:0 0 6px}
.card p{margin:0; color:var(--muted); line-height:1.5}

.section{padding:38px 0}
.section h2{margin:0 0 10px}
.section p{margin:0; color:var(--muted); line-height:1.6}

.footer{
  border-top:1px solid var(--line);
  padding:18px 0;
  color:var(--muted);
  font-size:.95rem;
}

@media (max-width:900px){
  .grid{grid-template-columns:1fr}
  .hero h1{font-size:34px}
}