:root{color:#1c2630;background:#f7f9fb;font-family:system-ui,sans-serif}body{margin:0}.setup,.page{max-width:48rem;margin:10vh auto;padding:0 1.5rem}h1{font-size:clamp(2rem,5vw,3rem)}p{white-space:pre-wrap;line-height:1.6}pre{background:#e9eef4;padding:1rem;overflow-x:auto}