:root{color-scheme:light;--bg:#f7f8fa;--surface:#fff;--ink:#192229;--muted:#606c76;--accent:#137554;--accent-hover:#0d5b41;--soft:#edf5f1;--line:#e5e9ed;--line-strong:#c7cfd5;--danger:#a52d3b;--danger-soft:#fff4f4;--focus:#13835f;--radius:12px;--mono:"Cascadia Code","SFMono-Regular",Consolas,monospace}