:root{--ms-blue: #0078D4;--ms-blue-dark: #106EBE;--ms-blue-light: #2B88D8;--ms-green: #107C10;--ms-green-light: #159118;--ms-yellow: #FFB900;--ms-orange: #D83B01;--ms-purple: #5C2D91;--ms-cyan: #00A9E0;--ms-red: #E81123;--bg-primary: #1B1B1B;--bg-secondary: #2D2D2D;--bg-tertiary: #3D3D3D;--bg-elevated: #323232;--text-primary: #FFFFFF;--text-secondary: #B3B3B3;--text-tertiary: #808080;--border-color: #404040;--border-subtle: #333333;--success: #107C10;--warning: #FFB900;--error: #E81123;--info: #0078D4;--shadow-sm: 0 2px 4px rgba(0, 0, 0, .2);--shadow-md: 0 4px 8px rgba(0, 0, 0, .25);--shadow-lg: 0 8px 16px rgba(0, 0, 0, .3);--shadow-glow: 0 0 20px rgba(0, 120, 212, .3);--transition-fast: .15s ease-out;--transition-normal: .25s ease-out;--transition-slow: .4s ease-out;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--font-primary: "Segoe UI", -apple-system, BlinkMacSystemFont, sans-serif;--font-mono: "Cascadia Code", "Fira Code", monospace;--graph-bg: #1E1E1E;--graph-node-text: #B3B3B3;--graph-edge-color: #505050;--graph-edge-text: #808080;--chess-square-dark: rgba(20, 30, 50, .85);--chess-square-light: rgba(30, 50, 80, .65);--about-link-color: #9fd6ff;--about-link-hover-color: #c8e8ff}.light-theme{--bg-primary: #F5F5F5;--bg-secondary: #FFFFFF;--bg-tertiary: #E8E8E8;--bg-elevated: #FFFFFF;--text-primary: #1A1A1A;--text-secondary: #444444;--text-tertiary: #666666;--border-color: #C0C0C0;--border-subtle: #D8D8D8;--shadow-sm: 0 2px 4px rgba(0, 0, 0, .08);--shadow-md: 0 4px 8px rgba(0, 0, 0, .1);--shadow-lg: 0 8px 16px rgba(0, 0, 0, .12);--graph-bg: #FCFCFC;--graph-node-text: #2A2A2A;--graph-edge-color: #888888;--graph-edge-text: #555555;--chess-square-dark: rgba(220, 230, 245, .8);--chess-square-light: rgba(240, 245, 255, .9);--about-link-color: #004578;--about-link-hover-color: 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