body { font-family: system-ui, Arial, sans-serif; margin: 0; }
.wrap { max-width: 900px; margin: 40px auto; padding: 0 16px; }
pre { background: #111; color: #0f0; padding: 12px; border-radius: 8px; overflow: auto; }
.nav { display: flex; gap: 12px; margin-top: 16px; flex-wrap: wrap; }
a { text-decoration: none; }