:root{--color-primary: #4F46E5;--color-primary-hover: #4338CA;--color-primary-bg: #EEF2FF;--color-primary-border: #C7D2FE;--bg-page: #F8FAFC;--bg-card: #FFFFFF;--bg-sidebar: #FFFFFF;--bg-input: #FFFFFF;--bg-hover: #F1F5F9;--bg-selected: #EEF2FF;--bg-chat-assistant: #EEF0F4;--text-primary: #0F172A;--text-secondary: #475569;--text-tertiary: #94A3B8;--text-inverse: #FFFFFF;--border-color: #E2E8F0;--border-light: #F1F5F9;--color-success: #10B981;--color-success-bg: #ECFDF5;--color-warning: #F59E0B;--color-warning-bg: #FFFBEB;--color-error: #EF4444;--color-error-bg: #FEF2F2;--color-info: #3B82F6;--color-info-bg: #EFF6FF;--code-bg: #1e1e1e;--code-color: #d4d4d4;--space-xs: 4px;--space-sm: 8px;--space-md: 16px;--space-lg: 24px;--space-xl: 32px;--space-2xl: 48px;--space-3xl: 64px;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--radius-full: 9999px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .07), 0 2px 4px -2px rgba(0, 0, 0, .05);--shadow-lg: 0 10px 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