body{font-family:Arial;margin:0;color:#111}.container{max-width:1100px;margin:auto;padding:20px}.hero{text-align:center;padding:80px;background:#f4ffff}.btn{background:#00baba;color:#fff;padding:12px 20px;border-radius:8px;text-decoration:none}.card{border:1px solid #ddd;padding:20px;margin:10px;border-radius:10px}