bulma/sass/form/tools.scss

$label-color: $text-strong !default;
$label-weight: $weight-bold !default;

$help-size: $size-small !default;

$label-colors: $form-colors !default;

.#{$class-prefix}label {
  color: $label-color;
  display: block;
  font-size: $size-normal;
  font-weight: $label-weight;

  &:not(:last-child) {
    margin-bottom: 0.5em;
  }

  // Sizes
  &.is-small {
    font-size: $size-small;
  }

  &.is-medium {
    font-size: $size-medium;
  }

  &.is-large {
    font-size: $size-large;
  }
}

.#{$class-prefix}help {
  display: block;
  font-size: $help-size;
  margin-top: 0.25rem;

  @each $name, $pair in $label-colors {
    $color: nth($pair, 1);

    &.is-#{$name} {
      color: $color;
    }
  }
}

// Containers

.#{$class-prefix}field {
  &:not(:last-child) {
    margin-bottom: 0.75rem;
  }

  // Modifiers
  &.has-addons {
    display: flex;
    justify-content: flex-start;

    .#{$class-prefix}control {
      &:not(:last-child) {
        @include ltr-property("margin", -1px);
      }

      &:not(:first-child):not(:last-child) {
        .#{$class-prefix}button,
        .#{$class-prefix}input,
        .#{$class-prefix}select select {
          border-radius: 0;
        }
      }

      &:first-child:not(:only-child) {
        .#{$class-prefix}button,
        .#{$class-prefix}input,
        .#{$class-prefix}select select {
          @include ltr {
            border-bottom-right-radius: 0;
            border-top-right-radius: 0;
          }

          @include rtl {
            border-bottom-left-radius: 0;
            border-top-left-radius: 0;
          }
        }
      }

      &:last-child:not(:only-child) {
        .#{$class-prefix}button,
        .#{$class-prefix}input,
        .#{$class-prefix}select select {
          @include ltr {
            border-bottom-left-radius: 0;
            border-top-left-radius: 0;
          }

          @include rtl {
            border-bottom-right-radius: 0;
            border-top-right-radius: 0;
          }
        }
      }

      .#{$class-prefix}button,
      .#{$class-prefix}input,
      .#{$class-prefix}select select {
        &:not([disabled]) {
          &:hover,
          &.is-hovered {
            z-index: 2;
          }

          &:focus,
          &.is-focused,
          &:active,
          &.is-active {
            z-index: 3;

            &:hover {
              z-index: 4;
            }
          }
        }
      }

      &.is-expanded {
        flex-grow: 1;
        flex-shrink: 1;
      }
    }

    &.has-addons-centered {
      justify-content: center;
    }

    &.has-addons-right {
      justify-content: flex-end;
    }

    &.has-addons-fullwidth {
      .#{$class-prefix}control {
        flex-grow: 1;
        flex-shrink: 0;
      }
    }
  }

  &.is-grouped {
    display: flex;
    justify-content: flex-start;

    & > .#{$class-prefix}control {
      flex-shrink: 0;

      &:not(:last-child) {
        margin-bottom: 0;

        @include ltr-property("margin", 0.75rem);
      }

      &.is-expanded {
        flex-grow: 1;
        flex-shrink: 1;
      }
    }

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

    &.is-grouped-right {
      justify-content: flex-end;
    }

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

      & > .#{$class-prefix}control {
        &:last-child,
        &:not(:last-child) {
          margin-bottom: 0.75rem;
        }
      }

      &:last-child {
        margin-bottom: -0.75rem;
      }

      &:not(:last-child) {
        margin-bottom: 0;
      }
    }
  }

  &.is-horizontal {
    @include tablet {
      display: flex;
    }
  }
}

.#{$class-prefix}field-label {
  .#{$class-prefix}label {
    font-size: inherit;
  }

  @include mobile {
    margin-bottom: 0.5rem;
  }

  @include tablet {
    flex-basis: 0;
    flex-grow: 1;
    flex-shrink: 0;

    @include ltr-property("margin", 1.5rem);

    text-align: right;

    &.is-small {
      font-size: $size-small;
      padding-top: 0.375em;
    }

    &.is-normal {
      padding-top: 0.375em;
    }

    &.is-medium {
      font-size: $size-medium;
      padding-top: 0.375em;
    }

    &.is-large {
      font-size: $size-large;
      padding-top: 0.375em;
    }
  }
}

.#{$class-prefix}field-body {
  .#{$class-prefix}field .#{$class-prefix}field {
    margin-bottom: 0;
  }

  @include tablet {
    display: flex;
    flex-basis: 0;
    flex-grow: 5;
    flex-shrink: 1;

    .#{$class-prefix}field {
      margin-bottom: 0;
    }

    & > .#{$class-prefix}field {
      flex-shrink: 1;

      &:not(.is-narrow) {
        flex-grow: 1;
      }

      &:not(:last-child) {
        @include ltr-property("margin", 0.75rem);
      }
    }
  }
}

.#{$class-prefix}control {
  box-sizing: border-box;
  clear: both;
  font-size: $size-normal;
  position: relative;
  text-align: inherit;

  // Modifiers
  &.has-icons-left,
  &.has-icons-right {
    .#{$class-prefix}input,
    .#{$class-prefix}select {
      &:focus {
        & ~ .#{$class-prefix}icon {
          color: $input-icon-active-color;
        }
      }

      &.is-small ~ .#{$class-prefix}icon {
        font-size: $size-small;
      }

      &.is-medium ~ .#{$class-prefix}icon {
        font-size: $size-medium;
      }

      &.is-large ~ .#{$class-prefix}icon {
        font-size: $size-large;
      }
    }

    .#{$class-prefix}icon {
      color: $input-icon-color;
      height: $input-height;
      pointer-events: none;
      position: absolute;
      top: 0;
      width: $input-height;
      z-index: 4;
    }
  }

  &.has-icons-left {
    .#{$class-prefix}input,
    .#{$class-prefix}select select {
      padding-left: $input-height;
    }

    .#{$class-prefix}icon.is-left {
      left: 0;
    }
  }

  &.has-icons-right {
    .#{$class-prefix}input,
    .#{$class-prefix}select select {
      padding-right: $input-height;
    }

    .#{$class-prefix}icon.is-right {
      right: 0;
    }
  }

  &.is-loading {
    &::after {
      @extend %loader;

      position: absolute !important;

      @include ltr-position(0.625em);

      top: 0.625em;
      z-index: 4;
    }

    &.is-small:after {
      font-size: $size-small;
    }

    &.is-medium:after {
      font-size: $size-medium;
    }

    &.is-large:after {
      font-size: $size-large;
    }
  }
}