:root{--color-bg:#fff;--color-fg:#171717}html,body{background:var(--color-bg);color:var(--color-fg);margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}main{max-width:60rem;margin:0 auto;padding:2rem}a{color:#2563eb}