@mixin input-size($padding-vertical, $padding-horizontal) {
  padding: $padding-vertical $padding-horizontal;
}

@mixin form-control-placeholder($color) {

  .form-control::-moz-placeholder {
    color: $color;
  }

  .form-control:-moz-placeholder {
    color: $color;
  }

  .form-control::-webkit-input-placeholder {
    color: $color;
  }

  .form-control:-ms-input-placeholder {
    color: $color;
  }
}

@mixin light-form() {
  border: 0;
  border-radius: 0;
  background-color: transparent;
  padding: 0;
}

@mixin input-lg-padding($padding-vertical, $padding-horizontal) {

  .form-group.form-group-no-border.input-lg,
  .input-group.form-group-no-border.input-lg {

    .input-group-prepend,
    .input-group-append {
      padding: $padding-vertical - 1 0 $padding-vertical -1 $padding-horizontal;
    }

    .form-control {
      padding: $padding-vertical - 1 $padding-horizontal - 1;

      & + .input-group-prepend,
      & + .input-group-append {
        padding: $padding-vertical - 1 $padding-horizontal $padding-vertical - 1 0;
      }
    }
  }

  .form-group.input-lg,
  .input-group.input-lg {

    .form-control {
      padding: $padding-vertical - 1 $padding-horizontal - 1;

      & + .input-group-prepend,
      & + .input-group-append {
        padding: $padding-vertical - 1 $padding-horizontal - 1 $padding-vertical - 1 0;
      }
    }

    .input-group-prepend,
    .input-group-append {
      padding: $padding-vertical - 1 0 $padding-vertical $padding-horizontal - 1;

      & + .form-control {
        padding: $padding-vertical $padding-horizontal - 1 $padding-vertical $padding-horizontal - 3;
      }
    }
  }
}

@mixin input-base-padding($padding-vertical, $padding-horizontal) {

  .form-group.form-group-no-border,
  .input-group.form-group-no-border {

    .form-control {
      padding: $padding-vertical $padding-horizontal;

      & + .input-group-prepend,
      & + .input-group-append {
        padding: $padding-vertical $padding-horizontal $padding-vertical 0;
      }
    }

    .input-group-prepend,
    .input-group-append {
      padding: $padding-vertical 0 $padding-vertical $padding-horizontal;
    }
  }

  .input-group-btn {
    font-size: inherit;
  }

  .form-group,
  .input-group {

    .form-control {
      padding: calc(#{$padding-base-vertical} - 1px) $padding-base-horizontal calc($padding-base-vertical - 1px) $padding-base-horizontal;
    }
  }

  .input-group {

    .form-control {

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