$column-gap: 0.75rem !default;

.column {
  display: block;
  flex-basis: 0;
  flex-grow: 1;
  flex-shrink: 1;
  padding: $column-gap;

  .columns.is-mobile > &.is-narrow {
    flex: none;
  }

  .columns.is-mobile > &.is-full {
    flex: none;
    width: 100%;
  }

  .columns.is-mobile > &.is-three-quarters {
    flex: none;
    width: 75%;
  }

  .columns.is-mobile > &.is-two-thirds {
    flex: none;
    width: 66.6666%;
  }

  .columns.is-mobile > &.is-half {
    flex: none;
    width: 50%;
  }

  .columns.is-mobile > &.is-one-third {
    flex: none;
    width: 33.3333%;
  }

  .columns.is-mobile > &.is-one-quarter {
    flex: none;
    width: 25%;
  }

  .columns.is-mobile > &.is-one-fifth {
    flex: none;
    width: 20%;
  }

  .columns.is-mobile > &.is-two-fifths {
    flex: none;
    width: 40%;
  }

  .columns.is-mobile > &.is-three-fifths {
    flex: none;
    width: 60%;
  }

  .columns.is-mobile > &.is-four-fifths {
    flex: none;
    width: 80%;
  }

  .columns.is-mobile > &.is-offset-three-quarters {
    margin-left: 75%;
  }

  .columns.is-mobile > &.is-offset-two-thirds {
    margin-left: 66.6666%;
  }

  .columns.is-mobile > &.is-offset-half {
    margin-left: 50%;
  }

  .columns.is-mobile > &.is-offset-one-third {
    margin-left: 33.3333%;
  }

  .columns.is-mobile > &.is-offset-one-quarter {
    margin-left: 25%;
  }

  .columns.is-mobile > &.is-offset-one-fifth {
    margin-left: 20%;
  }

  .columns.is-mobile > &.is-offset-two-fifths {
    margin-left: 40%;
  }

  .columns.is-mobile > &.is-offset-three-fifths {
    margin-left: 60%;
  }

  .columns.is-mobile > &.is-offset-four-fifths {
    margin-left: 80%;
  }

  @for $i from 0 through 12 {
    .columns.is-mobile > &.is-#{$i} {
      flex: none;
      width: percentage($i / 12);
    }

    .columns.is-mobile > &.is-offset-#{$i} {
      margin-left: percentage($i / 12);
    }
  }

  @include mobile {
    &.is-narrow-mobile {
      flex: none;
    }

    &.is-full-mobile {
      flex: none;
      width: 100%;
    }

    &.is-three-quarters-mobile {
      flex: none;
      width: 75%;
    }

    &.is-two-thirds-mobile {
      flex: none;
      width: 66.6666%;
    }

    &.is-half-mobile {
      flex: none;
      width: 50%;
    }

    &.is-one-third-mobile {
      flex: none;
      width: 33.3333%;
    }

    &.is-one-quarter-mobile {
      flex: none;
      width: 25%;
    }

    &.is-one-fifth-mobile {
      flex: none;
      width: 20%;
    }

    &.is-two-fifths-mobile {
      flex: none;
      width: 40%;
    }

    &.is-three-fifths-mobile {
      flex: none;
      width: 60%;
    }

    &.is-four-fifths-mobile {
      flex: none;
      width: 80%;
    }

    &.is-offset-three-quarters-mobile {
      margin-left: 75%;
    }

    &.is-offset-two-thirds-mobile {
      margin-left: 66.6666%;
    }

    &.is-offset-half-mobile {
      margin-left: 50%;
    }

    &.is-offset-one-third-mobile {
      margin-left: 33.3333%;
    }

    &.is-offset-one-quarter-mobile {
      margin-left: 25%;
    }

    &.is-offset-one-fifth-mobile {
      margin-left: 20%;
    }

    &.is-offset-two-fifths-mobile {
      margin-left: 40%;
    }

    &.is-offset-three-fifths-mobile {
      margin-left: 60%;
    }

    &.is-offset-four-fifths-mobile {
      margin-left: 80%;
    }

    @for $i from 0 through 12 {
      &.is-#{$i}-mobile {
        flex: none;
        width: percentage($i / 12);
      }

      &.is-offset-#{$i}-mobile {
        margin-left: percentage($i / 12);
      }
    }
  }


  @include tablet {
    &.is-narrow,
    &.is-narrow-tablet {
      flex: none;
    }

    &.is-full,
    &.is-full-tablet {
      flex: none;
      width: 100%;
    }

    &.is-three-quarters,
    &.is-three-quarters-tablet {
      flex: none;
      width: 75%;
    }

    &.is-two-thirds,
    &.is-two-thirds-tablet {
      flex: none;
      width: 66.6666%;
    }

    &.is-half,
    &.is-half-tablet {
      flex: none;
      width: 50%;
    }

    &.is-one-third,
    &.is-one-third-tablet {
      flex: none;
      width: 33.3333%;
    }

    &.is-one-quarter,
    &.is-one-quarter-tablet {
      flex: none;
      width: 25%;
    }

    &.is-one-fifth,
    &.is-one-fifth-tablet {
      flex: none;
      width: 20%;
    }

    &.is-two-fifths,
    &.is-two-fifths-tablet {
      flex: none;
      width: 40%;
    }

    &.is-three-fifths,
    &.is-three-fifths-tablet {
      flex: none;
      width: 60%;
    }

    &.is-four-fifths,
    &.is-four-fifths-tablet {
      flex: none;
      width: 80%;
    }

    &.is-offset-three-quarters,
    &.is-offset-three-quarters-tablet {
      margin-left: 75%;
    }

    &.is-offset-two-thirds,
    &.is-offset-two-thirds-tablet {
      margin-left: 66.6666%;
    }

    &.is-offset-half,
    &.is-offset-half-tablet {
      margin-left: 50%;
    }

    &.is-offset-one-third,
    &.is-offset-one-third-tablet {
      margin-left: 33.3333%;
    }

    &.is-offset-one-quarter,
    &.is-offset-one-quarter-tablet {
      margin-left: 25%;
    }

    &.is-offset-one-fifth,
    &.is-offset-one-fifth-tablet {
      margin-left: 20%;
    }

    &.is-offset-two-fifths,
    &.is-offset-two-fifths-tablet {
      margin-left: 40%;
    }

    &.is-offset-three-fifths,
    &.is-offset-three-fifths-tablet {
      margin-left: 60%;
    }

    &.is-offset-four-fifths,
    &.is-offset-four-fifths-tablet {
      margin-left: 80%;
    }

    @for $i from 0 through 12 {
      &.is-#{$i},
      &.is-#{$i}-tablet {
        flex: none;
        width: percentage($i / 12);
      }

      &.is-offset-#{$i},
      &.is-offset-#{$i}-tablet {
        margin-left: percentage($i / 12);
      }
    }
  }


  @include touch {
    &.is-narrow-touch {
      flex: none;
    }

    &.is-full-touch {
      flex: none;
      width: 100%;
    }

    &.is-three-quarters-touch {
      flex: none;
      width: 75%;
    }

    &.is-two-thirds-touch {
      flex: none;
      width: 66.6666%;
    }

    &.is-half-touch {
      flex: none;
      width: 50%;
    }

    &.is-one-third-touch {
      flex: none;
      width: 33.3333%;
    }

    &.is-one-quarter-touch {
      flex: none;
      width: 25%;
    }

    &.is-one-fifth-touch {
      flex: none;
      width: 20%;
    }

    &.is-two-fifths-touch {
      flex: none;
      width: 40%;
    }

    &.is-three-fifths-touch {
      flex: none;
      width: 60%;
    }

    &.is-four-fifths-touch {
      flex: none;
      width: 80%;
    }

    &.is-offset-three-quarters-touch {
      margin-left: 75%;
    }

    &.is-offset-two-thirds-touch {
      margin-left: 66.6666%;
    }

    &.is-offset-half-touch {
      margin-left: 50%;
    }

    &.is-offset-one-third-touch {
      margin-left: 33.3333%;
    }

    &.is-offset-one-quarter-touch {
      margin-left: 25%;
    }

    &.is-offset-one-fifth-touch {
      margin-left: 20%;
    }

    &.is-offset-two-fifths-touch {
      margin-left: 40%;
    }

    &.is-offset-three-fifths-touch {
      margin-left: 60%;
    }

    &.is-offset-four-fifths-touch {
      margin-left: 80%;
    }

    @for $i from 0 through 12 {
      &.is-#{$i}-touch {
        flex: none;
        width: percentage($i / 12);
      }

      &.is-offset-#{$i}-touch {
        margin-left: percentage($i / 12);
      }
    }
  }


  @include desktop {
    &.is-narrow-desktop {
      flex: none;
    }

    &.is-full-desktop {
      flex: none;
      width: 100%;
    }

    &.is-three-quarters-desktop {
      flex: none;
      width: 75%;
    }

    &.is-two-thirds-desktop {
      flex: none;
      width: 66.6666%;
    }

    &.is-half-desktop {
      flex: none;
      width: 50%;
    }

    &.is-one-third-desktop {
      flex: none;
      width: 33.3333%;
    }

    &.is-one-quarter-desktop {
      flex: none;
      width: 25%;
    }

    &.is-one-fifth-desktop {
      flex: none;
      width: 20%;
    }

    &.is-two-fifths-desktop {
      flex: none;
      width: 40%;
    }

    &.is-three-fifths-desktop {
      flex: none;
      width: 60%;
    }

    &.is-four-fifths-desktop {
      flex: none;
      width: 80%;
    }

    &.is-offset-three-quarters-desktop {
      margin-left: 75%;
    }

    &.is-offset-two-thirds-desktop {
      margin-left: 66.6666%;
    }

    &.is-offset-half-desktop {
      margin-left: 50%;
    }

    &.is-offset-one-third-desktop {
      margin-left: 33.3333%;
    }

    &.is-offset-one-quarter-desktop {
      margin-left: 25%;
    }

    &.is-offset-one-fifth-desktop {
      margin-left: 20%;
    }

    &.is-offset-two-fifths-desktop {
      margin-left: 40%;
    }

    &.is-offset-three-fifths-desktop {
      margin-left: 60%;
    }

    &.is-offset-four-fifths-desktop {
      margin-left: 80%;
    }

    @for $i from 0 through 12 {
      &.is-#{$i}-desktop {
        flex: none;
        width: percentage($i / 12);
      }

      &.is-offset-#{$i}-desktop {
        margin-left: percentage($i / 12);
      }
    }
  }


  @include widescreen {
    &.is-narrow-widescreen {
      flex: none;
    }

    &.is-full-widescreen {
      flex: none;
      width: 100%;
    }

    &.is-three-quarters-widescreen {
      flex: none;
      width: 75%;
    }

    &.is-two-thirds-widescreen {
      flex: none;
      width: 66.6666%;
    }

    &.is-half-widescreen {
      flex: none;
      width: 50%;
    }

    &.is-one-third-widescreen {
      flex: none;
      width: 33.3333%;
    }

    &.is-one-quarter-widescreen {
      flex: none;
      width: 25%;
    }

    &.is-one-fifth-widescreen {
      flex: none;
      width: 20%;
    }

    &.is-two-fifths-widescreen {
      flex: none;
      width: 40%;
    }

    &.is-three-fifths-widescreen {
      flex: none;
      width: 60%;
    }

    &.is-four-fifths-widescreen {
      flex: none;
      width: 80%;
    }

    &.is-offset-three-quarters-widescreen {
      margin-left: 75%;
    }

    &.is-offset-two-thirds-widescreen {
      margin-left: 66.6666%;
    }

    &.is-offset-half-widescreen {
      margin-left: 50%;
    }

    &.is-offset-one-third-widescreen {
      margin-left: 33.3333%;
    }

    &.is-offset-one-quarter-widescreen {
      margin-left: 25%;
    }

    &.is-offset-one-fifth-widescreen {
      margin-left: 20%;
    }

    &.is-offset-two-fifths-widescreen {
      margin-left: 40%;
    }

    &.is-offset-three-fifths-widescreen {
      margin-left: 60%;
    }

    &.is-offset-four-fifths-widescreen {
      margin-left: 80%;
    }

    @for $i from 0 through 12 {
      &.is-#{$i}-widescreen {
        flex: none;
        width: percentage($i / 12);
      }

      &.is-offset-#{$i}-widescreen {
        margin-left: percentage($i / 12);
      }
    }
  }


  @include fullhd {
    &.is-narrow-fullhd {
      flex: none;
    }

    &.is-full-fullhd {
      flex: none;
      width: 100%;
    }

    &.is-three-quarters-fullhd {
      flex: none;
      width: 75%;
    }

    &.is-two-thirds-fullhd {
      flex: none;
      width: 66.6666%;
    }

    &.is-half-fullhd {
      flex: none;
      width: 50%;
    }

    &.is-one-third-fullhd {
      flex: none;
      width: 33.3333%;
    }

    &.is-one-quarter-fullhd {
      flex: none;
      width: 25%;
    }

    &.is-one-fifth-fullhd {
      flex: none;
      width: 20%;
    }

    &.is-two-fifths-fullhd {
      flex: none;
      width: 40%;
    }

    &.is-three-fifths-fullhd {
      flex: none;
      width: 60%;
    }

    &.is-four-fifths-fullhd {
      flex: none;
      width: 80%;
    }

    &.is-offset-three-quarters-fullhd {
      margin-left: 75%;
    }

    &.is-offset-two-thirds-fullhd {
      margin-left: 66.6666%;
    }

    &.is-offset-half-fullhd {
      margin-left: 50%;
    }

    &.is-offset-one-third-fullhd {
      margin-left: 33.3333%;
    }

    &.is-offset-one-quarter-fullhd {
      margin-left: 25%;
    }

    &.is-offset-one-fifth-fullhd {
      margin-left: 20%;
    }

    &.is-offset-two-fifths-fullhd {
      margin-left: 40%;
    }

    &.is-offset-three-fifths-fullhd {
      margin-left: 60%;
    }

    &.is-offset-four-fifths-fullhd {
      margin-left: 80%;
    }

    @for $i from 0 through 12 {
      &.is-#{$i}-fullhd {
        flex: none;
        width: percentage($i / 12);
      }

      &.is-offset-#{$i}-fullhd {
        margin-left: percentage($i / 12);
      }
    }
  }
}

.columns {
  margin-left: -$column-gap;
  margin-right: -$column-gap;
  margin-top: -$column-gap;

  &:last-child {
    margin-bottom: -$column-gap;
  }

  &:not(:last-child) {
    margin-bottom: calc(1.5rem - #{$column-gap});
  }

  // Modifiers
  &.is-centered {
    justify-content: center;
  }

  &.is-gapless {
    margin-left: 0;
    margin-right: 0;
    margin-top: 0;

    & > .column {
      margin: 0;
      padding: 0 !important;
    }

    &:not(:last-child) {
      margin-bottom: 1.5rem;
    }

    &:last-child {
      margin-bottom: 0;
    }
  }

  &.is-mobile {
    display: flex;
  }

  &.is-multiline {
    flex-wrap: wrap;
  }

  &.is-vcentered {
    align-items: center;
  }

  // Responsiveness
  @include tablet {
    &:not(.is-desktop) {
      display: flex;
    }
  }


  @include desktop {
    // Modifiers
    &.is-desktop {
      display: flex;
    }
  }
}

@if $variable-columns {
  .columns.is-variable {
    --columnGap: 0.75rem;
    margin-left: calc(-1 * var(--columnGap));
    margin-right: calc(-1 * var(--columnGap));

    .column {
      padding-left: var(--columnGap);
      padding-right: var(--columnGap);
    }

    @for $i from 0 through 8 {
      &.is-#{$i} {
        --columnGap: #{$i * 0.25rem};
      }

      @include mobile {
        &.is-#{$i}-mobile {
          --columnGap: #{$i * 0.25rem};
        }
      }


      @include tablet {
        &.is-#{$i}-tablet {
          --columnGap: #{$i * 0.25rem};
        }
      }


      @include tablet-only {
        &.is-#{$i}-tablet-only {
          --columnGap: #{$i * 0.25rem};
        }
      }


      @include touch {
        &.is-#{$i}-touch {
          --columnGap: #{$i * 0.25rem};
        }
      }


      @include desktop {
        &.is-#{$i}-desktop {
          --columnGap: #{$i * 0.25rem};
        }
      }


      @include desktop-only {
        &.is-#{$i}-desktop-only {
          --columnGap: #{$i * 0.25rem};
        }
      }


      @include widescreen {
        &.is-#{$i}-widescreen {
          --columnGap: #{$i * 0.25rem};
        }
      }


      @include widescreen-only {
        &.is-#{$i}-widescreen-only {
          --columnGap: #{$i * 0.25rem};
        }
      }


      @include fullhd {
        &.is-#{$i}-fullhd {
          --columnGap: #{$i * 0.25rem};
        }
      }
    }
  }
}