body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;margin:0;color:#111;background:#fff;text-align:center}
header{padding:20px;border-bottom:1px solid #eee;position:sticky;top:0;background:#fff}
nav a{margin:6px;text-decoration:none;color:#111;padding:10px 14px;border:1px solid #ddd;border-radius:10px}
main{padding:50px;max-width:1000px;margin:auto}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin-top:30px}
.card{border:1px solid #eee;padding:20px;border-radius:14px;text-align:left}
.cta{display:inline-block;margin:12px;padding:14px 18px;border:1px solid #000;text-decoration:none}
input{display:block;margin:10px auto;padding:12px;width:260px;border-radius:8px;border:1px solid #ddd}
button{padding:12px 16px;border-radius:8px;background:#111;color:#fff;border:none}
.logo{max-width:200px;margin:20px auto}