:root{--color-bg:#000;--color-fg:#fff}*,:before,:after{box-sizing:border-box}html,body{height:100%;margin:0;padding:0}body{background-color:var(--color-bg);color:var(--color-fg);-webkit-font-smoothing:antialiased;font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif}