:root{--ui-font:ui-sans-serif,system-ui,sans-serif;--ui-color-bg:#0f172a;--ui-color-fg:#f8fafc;--ui-color-muted:#94a3b8;--ui-color-primary:#2563eb;--ui-color-primary-fg:#fff;--ui-color-secondary:#e2e8f0;--ui-color-secondary-fg:#0f172a;--ui-color-danger:#b91c1c;--ui-color-danger-bg:#fef2f2;--ui-radius:0.375rem}.ui-btn{font-family:var(--ui-font);font-size:.875rem;line-height:1.25rem;border-radius:var(--ui-radius);border:1px solid transparent;padding:.5rem .875rem;cursor:pointer}.ui-btn--primary{background:var(--ui-color-primary);color:var(--ui-color-primary-fg)}.ui-btn--secondary{background:var(--ui-color-secondary);color:var(--ui-color-secondary-fg)}.ui-btn:disabled{opacity:.6;cursor:not-allowed}