body{font-family:Arial,sans-serif;margin:0;background:#f8fbff;color:#123}header{display:flex;justify-content:space-between;padding:20px 40px}.hero{padding:80px;text-align:center;background:linear-gradient(#eaf4ff,#fff)}.btn{background:#2563eb;color:#fff;padding:12px 20px;text-decoration:none;border-radius:8px}