//
// Base styles
//

.input-group {
  position: relative;
  width: 100%;

  @if $enable-flex {
    display: inline-flex;
  } @else {
    display: table;
    border-collapse: separate;
  }

  .form-control {
    border-radius: $input-border-radius;
    position: relative;

    @if $enable-flex {
      flex: 1;
    } @else {
      float: left;
      width: 100%;
    }

    margin-bottom: 0;

    &:focus,
    &:hover {
      z-index: 6;
    }

    &:not(:first-child) {
      margin-left: -1px;
    }
  }

  .select.open:first-child {
    z-index: $zindex-select;
  }
}

.input-group-addon,
.input-group-btn,
.input-group .form-control {
  @if not $enable-flex {
    display: table-cell;
  }

  &:not(:first-child):not(:last-child) {
    border-radius: 0;
  }
}

.input-group-addon,
.input-group-btn {
  @if not $enable-flex {
    width: 1%;
  }
  white-space: nowrap;
  vertical-align: middle; // Match the inputs

  .fa {
    line-height: $line-height-base;
  }
}

// Sizing options
//
// Remix the default form control sizing classes into new ones for easier
// manipulation.

.input-group-lg > .form-control,
.input-group-lg > .input-group-addon,
.input-group-lg > .input-group-btn > .btn {
  @extend .form-control-lg;
}

.input-group-sm > .form-control,
.input-group-sm > .input-group-addon,
.input-group-sm > .input-group-btn > .btn {
  @extend .form-control-sm;
}

//
// Text input groups
//

.input-group-addon {
  padding: $input-padding-y $input-padding-x;
  margin-bottom: 0; // Allow use of <label> elements by overriding our default margin-bottom
  font-size: $font-size-base;
  font-weight: normal;
  line-height: $input-line-height;
  color: $input-group-addon-color;
  text-align: center;
  background-color: $input-group-addon-bg;
  border: 1px solid $input-group-addon-border-color;
  border-radius: $input-border-radius;

  // Sizing
  &.form-control-sm {
    padding: $input-group-addon-padding-sm;
    font-size: $input-group-addon-font-size-sm;
  }

  &.form-control-lg {
    padding: $input-group-addon-padding-lg;
    font-size: $input-group-addon-font-size-lg;
  }

  input[type='radio'],
  input[type='checkbox'] {
    margin-top: 0;
  }
}

//
// Reset rounded corners
//

.input-group .form-control:not(:last-child),
.input-group-addon:not(:last-child),
.input-group-btn:not(:last-child) > .btn,
.input-group-btn:not(:last-child) > .btn-group > .btn,
.input-group-btn:not(:last-child) > .dropdown-toggle,
.input-group-btn:not(:first-child)
  > .btn:not(:last-child):not(.dropdown-toggle),
.input-group-btn:not(:first-child) > .btn-group:not(:last-child) > .btn {
  @include border-right-radius(0);
}

.input-group-addon:not(:last-child) {
  border-right: 0;
}

.input-group .form-control:not(:first-child),
.input-group-addon:not(:first-child),
.input-group-btn:not(:first-child) > .btn,
.input-group-btn:not(:first-child) > .btn-group > .btn,
.input-group-btn:not(:first-child) > .dropdown-toggle,
.input-group-btn:not(:last-child) > .btn:not(:first-child),
.input-group-btn:not(:last-child) > .btn-group:not(:first-child) > .btn {
  @include border-left-radius(0);
}

.form-control + .input-group-addon:not(:first-child) {
  border-left: 0;
}

//
// Button input groups
//

.input-group-btn {
  position: relative;
  font-size: 0;
  white-space: nowrap;

  // Negative margin for spacing, position for bringing hovered/focused/actived
  // element above the siblings.
  > .btn {
    position: relative;

    + .btn {
      margin-left: (-$input-btn-border-width);
    }

    // Bring the "active" button to the front
    &:hover,
    &:focus,
    &:active {
      z-index: 3;
    }
  }

  // Negative margin to only have a single, shared border between the two

  &:not(:first-child) {
    > .btn,
    > .btn-group {
      z-index: 2;
      margin-left: (-$input-btn-border-width);
      // Because specificity
      &:hover,
      &:focus,
      &:active {
        z-index: 3;
      }
    }
  }
}