:root{--color-bg-primary: #ffffff;--color-bg-secondary: #f5f5f5;--color-bg-tertiary: #e8e8e8;--color-bg-hover: #f0f0f0;--color-primary: #d32f2f;--color-primary-hover: #b71c1c;--color-primary-light: #ef5350;--color-accent: #1976d2;--color-accent-hover: #1565c0;--color-success: #388e3c;--color-warning: #f57c00;--color-error: #d32f2f;--color-text-primary: #212121;--color-text-secondary: #757575;--color-text-muted: #9e9e9e;--color-border: #e0e0e0;--color-border-hover: #bdbdbd;--shadow-md: 0 2px 4px 0 rgba(0, 0, 0, .1);--shadow-lg: 0 4px 8px 0 rgba(0, 0, 0, .12);--shadow-xl: 0 8px 16px 0 rgba(0, 0, 0, .15);--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-2xl: 3rem;--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .2);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 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