:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}body{margin:0;color:#0f172a;max-width:900px;margin-inline:auto;padding:2rem;font-family:system-ui,sans-serif;line-height:1.5}h1,h2,h3{line-height:1.2}a{color:#06f}input,button{font:inherit}