:root{--color-brand:#1f6feb;--color-brand-hover:#1a5fcc;--color-fg-primary:#0e1116;--color-fg-secondary:#57606a;--color-fg-muted:#8c959f;--color-fg-on-brand:#ffffff;--color-bg-canvas:#ffffff;--color-bg-subtle:#f6f8fa;--color-bg-elevated:#ffffff;--color-border-default:#d0d7de;--color-border-muted:#eaeef2;--color-success:#1a7f37;--color-warning:#9a6700;--color-danger:#cf222e;--color-info:#0969da;--color-confidence-high:#1a7f37;--color-confidence-low:#9a6700;--color-confidence-unrecognized:#cf222e;--font-sans:-apple-system,BlinkMacSystemFont,"Inter","Segoe UI",sans-serif;--font-mono:ui-monospace,SFMono-Regular,"SF Mono",Consolas,monospace;--space-1:0.25rem;--space-2:0.5rem;--space-3:0.75rem;--space-4:1rem;--space-6:1.5rem;--space-8:2rem;--space-12:3rem;--radius-sm:0.25rem;--radius-md:0.5rem;--radius-lg:0.75rem;--shadow-sm:0 1px 2px rgba(0,0,0,0.05);--shadow-md:0 4px 8px rgba(0,0,0,0.08);--z-modal:100;--z-toast:200}@media (prefers-color-scheme:dark){:root{--color-fg-primary:#f0f6fc;--color-fg-secondary:#8b949e;--color-fg-muted:#6e7681;--color-bg-canvas:#0d1117;--color-bg-subtle:#161b22;--color-bg-elevated:#161b22;--color-border-default:#30363d;--color-border-muted:#21262d}}