body{font-family:Arial,sans-serif;margin:0;line-height:1.6;color:#222}header{position:sticky;top:0;background:#0b4ea2;color:#fff}nav{display:flex;gap:20px;align-items:center;padding:15px}nav a{color:#fff;text-decoration:none}.hero{background:#0b4ea2;color:#fff;padding:80px 20px;text-align:center}.btn{background:#fff;color:#0b4ea2;padding:12px 20px;text-decoration:none;border-radius:6px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:15px}.card{border:1px solid #ddd;border-radius:8px;padding:20px}section{padding:50px 20px;max-width:1100px;margin:auto}footer{text-align:center;background:#111;color:#fff;padding:20px}