/* Dark mode tokens (approved values) */
:root[data-theme="dark"]{--bg:#0a1226;--bg-alt:#0f1b38;--surface:#13234a;--text:#f2f6ff;--muted:#a9b6d3;--border:#24365f;--accent:#5b8dff;--accent-hover:#8aaeff;--shadow:0 8px 24px rgba(0,0,0,.4)}