:root{--bg-primary: #ffffff;--bg-secondary: #f8fafc;--bg-tertiary: #f1f5f9;--text-primary: #1a202c;--text-secondary: #4a5568;--text-tertiary: #718096;--border-primary: #e2e8f0;--border-secondary: #cbd5e0;--accent-primary: #1a73e8;--accent-secondary: #4fc3f7;--gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);--gradient-secondary: linear-gradient(135deg, #4c51bf 0%, #667eea 100%);--shadow-sm: 0 2px 8px rgba(0, 0, 0, .05);--shadow-md: 0 4px 20px rgba(0, 0, 0, .1)}[data-theme=dark]{--bg-primary: #1a202c;--bg-secondary: #2d3748;--bg-tertiary: #4a5568;--text-primary: #f7fafc;--text-secondary: #e2e8f0;--text-tertiary: #a0aec0;--border-primary: #4a5568;--border-secondary: #2d3748;--accent-primary: #60a5fa;--accent-secondary: #38bdf8;--gradient-primary: linear-gradient(135deg, #4c51bf 0%, #553c9a 100%);--gradient-secondary: linear-gradient(135deg, #1e3a8a 0%, #3730a3 100%);--shadow-sm: 0 2px 8px rgba(0, 0, 0, .3);--shadow-md: 0 4px 20px rgba(0, 0, 0, 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