:root {
  --primary:#0b3c5d;
  --secondary:#1d6fa5;
  --accent:#f59e0b;
  --dark:#020617;
  --light:#f9fafb;
}

body {
  margin:0;
  font-family: Arial, Helvetica, sans-serif;
  color:#1f2937;
  line-height:1.6;
}

header {
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:white;
  padding:60px 20px;
  text-align:center;
}

header img {
  max-width:180px;
  margin-bottom:20px;
}

nav {
  background:var(--dark);
  padding:12px;
  text-align:center;
}

nav a {
  color:#e5e7eb;
  margin:0 14px;
  text-decoration:none;
  font-weight:500;
}

nav a:hover { color:var(--accent); }

section {
  padding:50px 20px;
  max-width:1200px;
  margin:auto;
}

h2 { color:var(--primary); }

.grid {
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  gap:24px;
  margin-top:30px;
}

.card {
  background:var(--light);
  padding:24px;
  border-radius:10px;
  box-shadow:0 6px 16px rgba(0,0,0,.06);
}

.cta {
  background:var(--accent);
  color:#111827;
  padding:14px 32px;
  border-radius:8px;
  text-decoration:none;
  font-weight:bold;
  display:inline-block;
}

footer {
  background:var(--dark);
  color:#9ca3af;
  padding:30px 20px;
  text-align:center;
}