:root{--primary: #2563EB;--primary-dark: #1D4ED8;--primary-light: #3B82F6;--secondary: #64748B;--secondary-dark: #475569;--background: #F8FAFC;--surface: #FFFFFF;--text-primary: #1E293B;--text-secondary: #64748B;--border: #E2E8F0;--success: #10B981;--warning: #F59E0B;--danger: #EF4444;--info: #06B6D4;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow: 0 1px 3px 0 rgba(0, 0, 0, .1), 0 1px 2px -1px rgba(0, 0, 0, .1);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -2px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -4px rgba(0, 0, 0, .1);--radius-sm: 4px;--radius: 8px;--radius-lg: 12px;--transition: all .2s ease}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica 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