:root { color-scheme: light dark; }
body{max-width:900px;margin:24px auto;padding:0 16px;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;line-height:1.55}
pre,code{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace}
a{color:inherit}
@media (prefers-color-scheme: dark){
  body{background:#0b0f14;color:#e6edf3}
  a{color:#9ecbff}
  pre{background:#111827;padding:12px;border-radius:10px;overflow:auto}
}
@media (prefers-color-scheme: light){
  body{background:#fff;color:#111}
  a{color:#0b5fff}
  pre{background:#f6f8fa;padding:12px;border-radius:10px;overflow:auto}
}
h1,h2,h3{line-height:1.2}