body{font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;max-width:46rem;margin:2rem auto;padding:0 16px;line-height:1.55;color:#18191b;background:#fff}@media (prefers-color-scheme:dark){body{background:#0b0b0c;color:#e3e4e7}a{color:#d3d6da}}h1{font-size:1.7rem}h2{font-size:1.2rem;margin-top:1.6rem}