:root{--color-primary-500: #667eea;--color-primary-600: #5a67d8;--color-primary-700: #4c51bf;--color-bg-primary: #ffffff;--color-bg-secondary: #f7fafc;--color-text-primary: #1a202c;--color-text-secondary: #4a5568;--color-text-tertiary: #718096;--color-border-light: #e2e8f0;--color-border-default: #cbd5e0;--color-success-600: #38a169;--radius-md: .375rem;--radius-lg: .5rem;--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1);--spacing-1: .25rem;--spacing-2: .5rem;--spacing-3: .75rem;--spacing-4: 1rem;--spacing-6: 1.5rem;--spacing-8: 2rem;--font-size-xs: .75rem;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--font-size-3xl: 1.875rem;--font-weight-medium: 500;--font-weight-semibold: 600;--font-weight-bold: 700;--line-height-snug: 1.375;--transition-fast: .15s ease;--transition-slow: .3s ease;--container-max: 1280px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background-color:var(--color-bg-secondary);color:var(--color-text-primary);line-height:1.5}.container{max-width:var(--container-max);margin:0 auto;padding:0 var(--spacing-4)}