body { font-family: system-ui, sans-serif; margin: 0; min-height: 100vh; display: grid; place-items: center; background: #f6f7f9; color: #1d2330; }
main { text-align: center; padding: 16px; }
code { background: #e8ebf0; padding: 2px 6px; border-radius: 4px; }