module.exports = function() {
  return {
    colors: {
      transparent: 'transparent',

      black: '#22292f',
      'grey-darkest': '#3d4852',
      'grey-darker': '#606f7b',
      'grey-dark': '#8795a1',
      grey: '#b8c2cc',
      'grey-light': '#dae1e7',
      'grey-lighter': '#f1f5f8',
      'grey-lightest': '#f8fafc',
      white: '#ffffff',

      'red-darkest': '#3b0d0c',
      'red-darker': '#621b18',
      'red-dark': '#cc1f1a',
      red: '#e3342f',
      'red-light': '#ef5753',
      'red-lighter': '#f9acaa',
      'red-lightest': '#fcebea',

      'orange-darkest': '#462a16',
      'orange-darker': '#613b1f',
      'orange-dark': '#de751f',
      orange: '#f6993f',
      'orange-light': '#faad63',
      'orange-lighter': '#fcd9b6',
      'orange-lightest': '#fff5eb',

      'yellow-darkest': '#453411',
      'yellow-darker': '#684f1d',
      'yellow-dark': '#f2d024',
      yellow: '#ffed4a',
      'yellow-light': '#fff382',
      'yellow-lighter': '#fff9c2',
      'yellow-lightest': '#fcfbeb',

      'green-darkest': '#0f2f21',
      'green-darker': '#1a4731',
      'green-dark': '#1f9d55',
      green: '#38c172',
      'green-light': '#51d88a',
      'green-lighter': '#a2f5bf',
      'green-lightest': '#e3fcec',

      'teal-darkest': '#0d3331',
      'teal-darker': '#20504f',
      'teal-dark': '#38a89d',
      teal: '#4dc0b5',
      'teal-light': '#64d5ca',
      'teal-lighter': '#a0f0ed',
      'teal-lightest': '#e8fffe',

      'blue-darkest': '#12283a',
      'blue-darker': '#1c3d5a',
      'blue-dark': '#2779bd',
      blue: '#3490dc',
      'blue-light': '#6cb2eb',
      'blue-lighter': '#bcdefa',
      'blue-lightest': '#eff8ff',

      'indigo-darkest': '#191e38',
      'indigo-darker': '#2f365f',
      'indigo-dark': '#5661b3',
      indigo: '#6574cd',
      'indigo-light': '#7886d7',
      'indigo-lighter': '#b2b7ff',
      'indigo-lightest': '#e6e8ff',

      'purple-darkest': '#21183c',
      'purple-darker': '#382b5f',
      'purple-dark': '#794acf',
      purple: '#9561e2',
      'purple-light': '#a779e9',
      'purple-lighter': '#d6bbfc',
      'purple-lightest': '#f3ebff',

      'pink-darkest': '#451225',
      'pink-darker': '#6f213f',
      'pink-dark': '#eb5286',
      pink: '#f66d9b',
      'pink-light': '#fa7ea8',
      'pink-lighter': '#ffbbca',
      'pink-lightest': '#ffebef',
    },
    spacing: {
      px: '1px',
      '0': '0',
      '1': '0.25rem',
      '2': '0.5rem',
      '3': '0.75rem',
      '4': '1rem',
      '5': '1.25rem',
      '6': '1.5rem',
      '8': '2rem',
      '10': '2.5rem',
      '12': '3rem',
      '16': '4rem',
      '20': '5rem',
      '24': '6rem',
      '32': '8rem',
    },
    screens: {
      sm: '568px',
      md: '768px',
      lg: '1024px',
      xl: '1280px',
    },
    fontFamily: {
      sans: [
        'system-ui',
        'BlinkMacSystemFont',
        '-apple-system',
        'Segoe UI',
        'Roboto',
        'Oxygen',
        'Ubuntu',
        'Cantarell',
        'Fira Sans',
        'Droid Sans',
        'Helvetica Neue',
        'sans-serif',
      ],
      serif: [
        'Constantia',
        'Lucida Bright',
        'Lucidabright',
        'Lucida Serif',
        'Lucida',
        'DejaVu Serif',
        'Bitstream Vera Serif',
        'Liberation Serif',
        'Georgia',
        'serif',
      ],
      mono: ['Menlo', 'Monaco', 'Consolas', 'Liberation Mono', 'Courier New', 'monospace'],
    },
    fontSize: {
      xs: '.75rem', // 12px
      sm: '.875rem', // 14px
      base: '1rem', // 16px
      lg: '1.125rem', // 18px
      xl: '1.25rem', // 20px
      '2xl': '1.5rem', // 24px
      '3xl': '1.875rem', // 30px
      '4xl': '2.25rem', // 36px
      '5xl': '3rem', // 48px
    },
    fontWeight: {
      hairline: 100,
      thin: 200,
      light: 300,
      normal: 400,
      medium: 500,
      semibold: 600,
      bold: 700,
      extrabold: 800,
      black: 900,
    },
    lineHeight: {
      none: 1,
      tight: 1.25,
      snug: 1.375,
      normal: 1.5,
      relaxed: 1.625,
      loose: 2,
    },
    letterSpacing: {
      tighter: '-.05em',
      tight: '-.025em',
      normal: '0',
      wide: '.025em',
      wider: '.05em',
      widest: '.1em',
    },
    textColor: theme => theme.colors,
    backgroundColor: theme => theme.colors,
    backgroundPosition: {
      bottom: 'bottom',
      center: 'center',
      left: 'left',
      'left-bottom': 'left bottom',
      'left-top': 'left top',
      right: 'right',
      'right-bottom': 'right bottom',
      'right-top': 'right top',
      top: 'top',
    },
    backgroundSize: {
      auto: 'auto',
      cover: 'cover',
      contain: 'contain',
    },
    borderWidth: {
      default: '1px',
      '0': '0',
      '2': '2px',
      '4': '4px',
      '8': '8px',
    },
    borderColor: theme => {
      return global.Object.assign({ default: theme.colors['grey-light'] }, theme.colors)
    },
    borderRadius: {
      none: '0',
      sm: '.125rem',
      default: '.25rem',
      lg: '.5rem',
      full: '9999px',
    },
    cursor: {
      auto: 'auto',
      default: 'default',
      pointer: 'pointer',
      wait: 'wait',
      move: 'move',
      'not-allowed': 'not-allowed',
    },
    width: theme => ({
      auto: 'auto',
      ...theme.spacing,
      '48': '12rem',
      '64': '16rem',
      '1/2': '50%',
      '1/3': '33.33333%',
      '2/3': '66.66667%',
      '1/4': '25%',
      '3/4': '75%',
      '1/5': '20%',
      '2/5': '40%',
      '3/5': '60%',
      '4/5': '80%',
      '1/6': '16.66667%',
      '5/6': '83.33333%',
      full: '100%',
      screen: '100vw',
    }),
    height: theme => ({
      auto: 'auto',
      ...theme.spacing,
      '48': '12rem',
      '64': '16rem',
      full: '100%',
      screen: '100vh',
    }),
    minWidth: {
      '0': '0',
      full: '100%',
    },
    minHeight: {
      '0': '0',
      full: '100%',
      screen: '100vh',
    },
    maxWidth: {
      xs: '20rem',
      sm: '30rem',
      md: '40rem',
      lg: '50rem',
      xl: '60rem',
      '2xl': '70rem',
      '3xl': '80rem',
      '4xl': '90rem',
      '5xl': '100rem',
      full: '100%',
    },
    maxHeight: {
      full: '100%',
      screen: '100vh',
    },
    padding: theme => theme.spacing,
    margin: theme => ({ auto: 'auto', ...theme.spacing }),
    negativeMargin: theme => theme.spacing,
    objectPosition: {
      bottom: 'bottom',
      center: 'center',
      left: 'left',
      'left-bottom': 'left bottom',
      'left-top': 'left top',
      right: 'right',
      'right-bottom': 'right bottom',
      'right-top': 'right top',
      top: 'top',
    },
    boxShadow: {
      default: '0 2px 4px 0 rgba(0,0,0,0.10)',
      md: '0 4px 8px 0 rgba(0,0,0,0.12), 0 2px 4px 0 rgba(0,0,0,0.08)',
      lg: '0 15px 30px 0 rgba(0,0,0,0.11), 0 5px 15px 0 rgba(0,0,0,0.08)',
      inner: 'inset 0 2px 4px 0 rgba(0,0,0,0.06)',
      outline: '0 0 0 3px rgba(52,144,220,0.5)',
      none: 'none',
    },
    zIndex: {
      auto: 'auto',
      '0': 0,
      '10': 10,
      '20': 20,
      '30': 30,
      '40': 40,
      '50': 50,
    },
    opacity: {
      '0': '0',
      '25': '.25',
      '50': '.5',
      '75': '.75',
      '100': '1',
    },
    fill: {
      current: 'currentColor',
    },
    stroke: {
      current: 'currentColor',
    },
    flexGrow: {
      '0': 0,
      default: 1,
    },
    flexShrink: {
      '0': 0,
      default: 1,
    },
  }
}