:root{--bg-primary: #121212;--bg-secondary: #1e1e1e;--bg-tertiary: #2a2a2a;--bg-card: #252525;--bg-hover: #333333;--text-primary: #e0e0e0;--text-secondary: #a0a0a0;--text-tertiary: #808080;--border-color: #404040;--border-light: #303030;--accent-primary: #4a9eff;--accent-secondary: #40e0d0;--accent-success: #4caf50;--accent-warning: #ff9800;--accent-error: #f44336;--shadow-sm: 0 2px 4px rgba(0, 0, 0, .3);--shadow-md: 0 4px 8px rgba(0, 0, 0, .4);--shadow-lg: 0 8px 16px rgba(0, 0, 0, .5)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:var(--bg-primary);color:var(--text-primary);line-height:1.6}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier 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