:root{--kbsc-bg:#ffffff;--kbsc-text:#1f2937;--kbsc-border:#e5e7eb;--kbsc-muted-bg:#f9fafb;--kbsc-muted-text:#6b7280;--kbsc-accent:#6366f1;--kbsc-accent-light:rgba(99,102,241,0.1);--kbsc-overlay-bg:rgba(255,255,255,0.8)}:root.dark{--kbsc-bg:#1f2937;--kbsc-text:#f9fafb;--kbsc-border:#374151;--kbsc-muted-bg:#374151;--kbsc-muted-text:#d1d5db;--kbsc-accent:#a78bfa;--kbsc-accent-light:rgba(99,102,241,0.2);--kbsc-overlay-bg:rgba(0,0,0,0.9)}