:root{--bg: #f7f7f8;--text: #111}html,body,#root{height:100%}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial;background:var(--bg);color:var(--text)}.app{padding:24px;max-width:880px;margin:0 auto}