$typo-family-sans: BlinkMacSystemFont, -apple-system, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', 'Helvetica', 'Arial', sans-serif; $typo-family-mono: monospace; $typo-size-000: 16px; $typo-size-100: 3.5rem; $typo-size-200: 2.5rem; $typo-size-300: 2.2rem; $typo-size-400: 1.5rem; $typo-size-500: 1.125rem; $typo-size-600: 0.875rem; $typo-size-700: 0.8125rem; $typo-size-800: 0.75rem; $typo-weight-light: 300; $typo-weight-normal: 400; $typo-weight-medium: 500; $typo-weight-semibold: 600; $typo-weight-bold: 700; $typo-lead-000: 0; $type-lead-050: 1; $typo-lead-100: 1.2; $typo-lead-200: 1.25; $typo-lead-300: 1.28; $typo-lead-500: 1.33; $typo-lead-600: 1.4; $typo-lead-700: 1.5; $typo-lead-800: 1.7;