.auth-shell{--color-canvas:#FBF8F0;--color-surface:#FFFFFF;--color-warm:#1A1612;--color-muted:#6B5E48;--color-border:#E8DFCB;--color-primary:#8F6510;--color-info:#075985;--color-success:#166534;--color-warning:#92400E;--color-danger:#B91C1C;background:var(--color-canvas);min-height:100vh}.auth-shell.dark{--color-canvas:#0D1117;--color-surface:#161B22;--color-warm:#F5E6C8;--color-muted:#9C8B72;--color-border:#2A2000;--color-info:#38BDF8;--color-success:#34D399;--color-warning:#F59E0B;--color-danger:#EF4444}