.viewer-shell{--vw-canvas:radial-gradient(ellipse at center,#f4f5f7 0%,#e6e8ec 100%);--vw-chrome:rgba(255,255,255,0.65);--vw-chrome-strong:rgba(255,255,255,0.92);--vw-panel:#ffffff;--vw-border:rgba(15,23,42,0.10);--vw-hover:rgba(15,23,42,0.06);--vw-text:#10182B;--vw-text-soft:rgba(16,24,43,0.75);--vw-text-mute:rgba(16,24,43,0.50);--vw-scrim:rgba(0,0,0,0.6);--vw-warn:#b45309;--vw-error:#dc2626;--vw-ok:#15803d}.viewer-shell.dark{--vw-canvas:radial-gradient(ellipse at center,#1f2937 0%,#111827 100%);--vw-chrome:rgba(0,0,0,0.30);--vw-chrome-strong:rgba(0,0,0,0.85);--vw-panel:#1f2937;--vw-border:rgba(255,255,255,0.10);--vw-hover:rgba(255,255,255,0.10);--vw-text:#ffffff;--vw-text-soft:rgba(255,255,255,0.80);--vw-text-mute:rgba(255,255,255,0.55);--vw-scrim:rgba(0,0,0,0.6);--vw-warn:#facc15;--vw-error:#f87171;--vw-ok:#22c55e}