:root{--bg: #F7F7F5;--surface: #FFFFFF;--text: #1A1A1A;--text-muted: #6B6B6B;--accent: #1A7A6E;--border: #E4E1DA;--highlight: #E9F5F2;--practice-bg: #FDF3DC;--practice-text: #92600A}body{background-color:var(--bg);color:var(--text);font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;margin:0;padding:0}*,*:before,*:after{box-sizing:border-box}