body{font-family:Arial;margin:0;background:#f4f7fb}header,.hero,section,footer{padding:40px;text-align:center}header{background:#0a66c2;color:#fff}.cards{display:flex;gap:20px;justify-content:center;flex-wrap:wrap}.cards div{background:#fff;padding:20px;border-radius:8px;box-shadow:0 2px 8px #ccc}footer{background:#222;color:#fff}