:root{--primary-purple:#7B61FF;--primary-purple-dark:#6B4FE5;--primary-purple-light:#9B81FF;--focus-color:var(--primary-purple);--focus-shadow:0 0 0 3px rgba(123,97,255,0.3)}:root,:root[data-theme=light]{--background:#F5F5F7;--surface:#FFFFFF;--text-primary:#1C1C1E;--text-secondary:#8E8E93;--border-color:#E5E5EA;--success:#34C759;--warning:#FF9500;--danger:#FF3B30;--info:#5AC8FA;--canvas-background:#FFFFFF;--empty-canvas-overlay:rgba(255,255,255,0.8);--shadow-sm:0 2px 8px rgba(0,0,0,0.08);--shadow-md:0 4px 16px rgba(0,0,0,0.12);--shadow-lg:0 8px 32px rgba(0,0,0,0.16);--bottom-panel-shadow:0 -4px 20px rgba(0,0,0,0.1);--toolbar-shadow:0 -2px 8px rgba(0,0,0,0.08)}.dark-theme,:root[data-theme=dark]{--background:#1C1C1E;--surface:#2C2C2E;--text-primary:#FFFFFF;--text-secondary:#8E8E93;--border-color:#38383A;--success:#32D74B;--warning:#FF9F0A;--danger:#FF453A;--info:#64D2FF;--canvas-background:#3A3A3C;--empty-canvas-overlay:rgba(44,44,46,0.8);--shadow-sm:0 2px 8px 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