body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;line-height:1.6;margin:0;color:#111;background:#fafafa}
.wrap{max-width:860px;margin:0 auto;padding:24px}
header.wrap{background:#111;color:#fff}
h1,h2{margin:0 0 12px}
.btn{display:inline-block;background:#4f46e5;color:#fff;padding:10px 16px;border-radius:10px;text-decoration:none}
ul{padding-left:20px}
footer{font-size:14px;color:#555}