body{margin:0;font-family:Poppins,sans-serif;background:#f4f7fb;color:#233}
header{position:fixed;top:0;width:100%;display:flex;justify-content:space-between;align-items:center;padding:15px 40px;background:rgba(255,255,255,.95);box-shadow:0 2px 10px rgba(0,0,0,.08)}
.brand{display:flex;align-items:center;gap:12px}.brand img{height:55px}.brand h2{margin:0;color:#0B3D91}.brand span{font-size:12px;letter-spacing:2px}
nav a{text-decoration:none;margin-left:22px;color:#0B3D91;font-weight:600}
.hero{height:100vh;background:linear-gradient(rgba(11,61,145,.82),rgba(11,61,145,.82)),url('https://images.unsplash.com/photo-1518770660439-4636190af475?auto=format&fit=crop&w=1600&q=80') center/cover;display:flex;align-items:center;justify-content:center}
.overlay{text-align:center;color:#fff;max-width:800px;padding:20px}.overlay h1{font-size:56px}
.btn{display:inline-block;background:#FFC107;color:#111;padding:14px 30px;border-radius:30px;text-decoration:none;font-weight:700}
section{padding:80px 10%}.alt{background:#eef5ff}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px}
.card{background:#fff;padding:28px;border-radius:12px;box-shadow:0 10px 25px rgba(0,0,0,.08);font-weight:600;text-align:center}
footer{background:#0B3D91;color:#fff;text-align:center;padding:30px}