:root{font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}*{box-sizing:border-box}body{margin:0;line-height:1.5}.container{max-width:960px;margin:0 auto;padding:16px}.topnav{display:flex;align-items:center;justify-content:space-between;padding:12px 0}.topnav nav a{margin-left:16px;text-decoration:none}.brand{font-weight:700;text-decoration:none}.hero{padding:64px 0}.hero h1{font-size:clamp(32px,6vw,56px);margin:0 0 8px}.cta{display:inline-block;padding:10px 16px;border:1px solid #ccc;border-radius:8px;text-decoration:none}h2{margin-top:48px}.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;padding:0;list-style:none}.card{border:1px solid #eee;border-radius:12px;padding:16px}.footer{margin-top:48px;padding:24px 0;border-top:1px solid #eee;text-align:center}.topnav{display:flex;gap:20px;padding:10px;background:#f5f5f5}.topnav a{text-decoration:none;color:#333}.topnav a:hover{color:#0070f3}.page{padding:20px}