$gap-sizes: 0 0.5 1 1.5 2 2.5 3 4 5 6 7 8 9 !default;
$col-gap-multiplier: 0.5rem !default;        // i.e. 7.5px
$col-gap-multiplier-lg: false !default;
$col-gap-multiplier-md: false !default;
$col-gap-multiplier-sm: false !default;
$col-gap-multiplier-xs: false !default;

/* ---- Columns ---------------------- */

  .cols {
    margin-right: $col-gap-multiplier * 1.5 * -1;
    margin-left: $col-gap-multiplier * 1.5* -1;
    display: flex;
    flex-wrap: wrap;
  }
  .col-none,    // flex none
  .col-initial, // flex initial/0
  .col,         // flex 1
  .col-1,       // 12 columns
  .col-1-5,     // 8 columns
  .col-2,       // 6 columns
  .col-2-5,     // 2.08 columns
  .col-3,
  .col-4,
  .col-5,
  .col-6,
  .col-7,
  .col-8,
  .col-9,
  .col-10,
  .col-11,
  .col-12 {
    flex: none;
    position: relative;
    min-height: 1px;
    padding-left: $col-gap-multiplier * 1.5;
    padding-right: $col-gap-multiplier * 1.5;
    box-sizing: border-box;
  }
  @mixin sizes($pre, $post) {
    #{$pre}12#{$post}  { width: 100%; }
    #{$pre}11#{$post}  { width: 91.6666667%; }
    #{$pre}10#{$post}  { width: 83.33333333%; }
    #{$pre}9#{$post}   { width: 75%; }
    #{$pre}8#{$post}   { width: 66.66666667%; }
    #{$pre}7#{$post}   { width: 58.33333333%; }
    #{$pre}6#{$post}   { width: 50%; }
    #{$pre}5#{$post}   { width: 41.66666667%; }
    #{$pre}4#{$post}   { width: 33.33333333%; }
    #{$pre}3#{$post}   { width: 25%; }
    #{$pre}2-5#{$post} { width: 20%; }
    #{$pre}2#{$post}   { width: 16.66666667%; }
    #{$pre}1-5#{$post} { width: 12.5%; } // 8 columns
    #{$pre}1#{$post}   { width: 8.333333333%; }
  }
  @mixin cols-responsive-lg($class) {
    #{$class} {
      .col-1,
      .col-1-5,
      .col-2 {
        width: 33.33333333%;
      }
    }
  }
  @mixin cols-responsive-md($class) {
    #{$class} {
      .col-5,
      .col-6,
      .col-7,
      .col-8,
      .col-9,
      .col-10,
      .col-11,
      .col-12 {
        width: 100%;
      }
      .col-1,
      .col-1-5,
      .col-2,
      .col-2-5,
      .col-3,
      .col-4 {
        width: 50%;
      }
    }
  }
  @mixin cols-responsive-sm($class) {
    #{$class} {
      .col-3,
      .col-4 {
        width: 100%;
      }
    }
  }
  @mixin cols-responsive-xs($class) {
    #{$class} {
      .col-1,
      .col-1-5,
      .col-2,
      .col-2-5 {
        width: 100%;
      }
    }
  }

  @include sizes('.col-', '');
  @include sizes('.print\\:col-', '');
  .col { flex: 1; }
  .col-initial { flex: 0; }

  @media screen and (max-width: $breakpoint-lg) {
    @include cols-responsive-lg('.cols-responsive');
    @include sizes('.lg\\:cols-', ' > [class*="col"]');
    @include sizes('.lg\\:print\\:cols-', ' > [class*="col"]');
    @include sizes('.cols > [class*="lg\\:col-', '"]');
    @include sizes('.cols > [class*="lg\\:print\\:col-', '"]');
  }
  @media screen and (max-width: $breakpoint-md) {
    @include cols-responsive-md('.cols-responsive');
    @include sizes('.md\\:cols-', ' > [class*="col"]');
    @include sizes('.md\\:print\\:cols-', ' > [class*="col"]');
    @include sizes('.cols > [class*="md\\:col-', '"]');
    @include sizes('.cols > [class*="md\\:print\\:col-', '"]');
  }
  @media screen and (max-width: $breakpoint-sm) {
    @include cols-responsive-sm('.cols-responsive');
    @include sizes('.sm\\:cols-', ' > [class*="col"]');
    @include sizes('.sm\\:print\\:cols-', ' > [class*="col"]');
    @include sizes('.cols > [class*="sm\\:col-', '"]');
    @include sizes('.cols > [class*="sm\\:print\\:col-', '"]');
  }
  @media screen and (max-width: $breakpoint-xs) {
    @include cols-responsive-xs('.cols-responsive');
    @include sizes('.xs\\:cols-', ' > [class*="col"]');
    @include sizes('.xs\\:print\\:cols-', ' > [class*="col"]');
    @include sizes('.cols > [class*="xs\\:col-', '"]');
    @include sizes('.cols > [class*="xs\\:print\\:col-', '"]');
  }

  /* cols-gap */

  @mixin cols-gap($prefix, $multipler) {
    @each $i in $gap-sizes {
      $ii: $i;
      @if $i == 0.5 { $ii: '0-5'; }
      @if $i == 1.5 { $ii: '1-5'; }
      @if $i == 2.5 { $ii: '2-5'; }
      .#{$prefix}gap-#{$ii},
      .#{$prefix}cols-gap-#{$ii} {
        margin-right: -#{$col-gap-multiplier * $i * $multipler};
        margin-left: -#{$col-gap-multiplier * $i * $multipler};
      }
      .#{$prefix}gap-#{$ii} > .col,
      .#{$prefix}gap-#{$ii} > [class*="col-"],
      .#{$prefix}cols-gap-#{$ii} > .col,
      .#{$prefix}cols-gap-#{$ii} > [class*="col-"] {
        padding-right: #{$col-gap-multiplier * $i * $multipler};
        padding-left: #{$col-gap-multiplier * $i * $multipler};
      }
    }
  }

  @include cols-gap('', 1.0);
  @media screen and (max-width: $breakpoint-lg) {
    @if ($col-gap-multiplier-lg != false) { @include cols-gap('', $col-gap-multiplier-lg); }
    @include cols-gap('lg\\:', 1.0);
  }
  @media screen and (max-width: $breakpoint-md) {
    @if ($col-gap-multiplier-md != false) { @include cols-gap('', $col-gap-multiplier-md); }
    @include cols-gap('md\\:', 1.0);
  }
  @media screen and (max-width: $breakpoint-sm) {
    @if ($col-gap-multiplier-sm != false) { @include cols-gap('', $col-gap-multiplier-sm); }
    @include cols-gap('sm\\:', 1.0);
  }
  @media screen and (max-width: $breakpoint-xs) {
    @if ($col-gap-multiplier-xs != false) { @include cols-gap('', $col-gap-multiplier-xs); }
    @include cols-gap('xs\\:', 1.0);
  }

/* ---- Text columns ----------------- */

  .text3 {
    column-count: 3;
    column-gap: 50px;
    padding: 0 1px;
  }
  .text3 p {
    margin: 0px;
    display: inline;
  }
  @media (max-width: 880px) {
    .text3 {
      column-count: 2;
    }
  }
  @media (max-width: 680px) {
    .text3 {
      column-count: 1;
    }
  }

/* ---- Narrow typo --------------- */

  .typo-narrow p,
  .typo-narrow ul {
    width: 70%;
  }
  @media (max-width: 1000px) {
    .typo-narrow p,
    .typo-narrow ul {
      width: 88%;
    }
  }
  @media (max-width: 550px) {
    .typo-narrow p,
    .typo-narrow ul {
      width: 100%;
    }
  }