// Forms
.form-group {
  &:not(:last-child) {
    margin-bottom: @layout-gutter;
  }
}

// Form element: Label
.form-label {
  display: block;
  padding: .6rem 0;

  &.label-sm {
    padding: .2rem 0;
  }

  &.label-lg {
    padding: 1rem 0;
  }
}

// Form element: Input
.form-input {
  appearance: none;
  background: @bg-color-light;
  background-image: none;
  border: @border-width solid @border-color-dark;
  border-radius: @border-radius;
  color: @body-font-color;
  .control-transition();
  display: block;
  font-size: @font-size;
  height: 3.2rem;
  line-height: 2rem;
  max-width: 100%;
  outline: 0;
  padding: .5rem .8rem;
  position: relative;
  width: 100%;
  &:focus {
    border-color: @primary-color;
  }

  // Input sizes
  &.input-sm {
    font-size: @font-size-sm;
    height: 2.4rem;
    padding: .1rem .8rem;
  }

  &.input-lg {
    font-size: @font-size-lg;
    height: 4rem;
    padding: .9rem .8rem;
  }

  &.input-inline {
    display: inline-block;
    vertical-align: middle;
    width: auto;
  }

  // Textarea
  textarea& {
    height: auto;
  }

  // Input types
  &[type=file] {
    height: auto;
  }
}

// Form element: Input hint
.form-input-hint {
  color: @gray-color;
  margin-top: .4rem;

  .has-success &,
  .is-success + & {
    color: @control-color-success;
  }

  .has-danger &,
  .is-danger + & {
    color: @control-color-danger;
  }
}

// Form element: Select
.form-select {
  appearance: none;
  border: @border-width solid @border-color-dark;
  border-radius: @border-radius;
  color: inherit;
  font-size: @font-size;
  line-height: 2rem;
  min-width: @control-min-width;
  padding: .5rem .8rem;
  vertical-align: middle;

  &[multiple] {
    option {
      padding: .2rem .4rem;
    }
  }
  &:not([multiple]) {
    background: @bg-color-light url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 4 5'%3E%3Cpath fill='%23666' d='M2 0L0 2h4zm0 5L0 3h4z'/%3E%3C/svg%3E") no-repeat right .75rem center / .8rem 1rem;
    height: 3.2rem;
    padding-right: 2.4rem;
  }
  &:focus {
    border-color: @primary-color;
  }
  &::-ms-expand {
    display: none;
  }

  // Select sizes
  &.select-sm {
    font-size: @font-size-sm;
    height: 2.4rem;
    padding: .1rem 2rem .1rem .6rem;
  }

  &.select-lg {
    font-size: @font-size-lg;
    height: 4rem;
    padding: .9rem 2.4rem .9rem .8rem;
  }
}

// Form validation states
.form-input,
.form-select {
  .has-success &,
  &.is-success {
    border-color: @control-color-success;
    &:focus {
      .control-shadow(@control-color-success);
    }
  }

  .has-danger &,
  &.is-danger {
    border-color: @control-color-danger;
    &:focus {
      .control-shadow(@control-color-danger);
    }
  }
}

// Form element: Checkbox and Radio
.form-checkbox,
.form-radio,
.form-switch {
  display: inline-block;
  line-height: 2rem;
  position: relative;

  input {
    clip: rect(0, 0, 0, 0);
    height: .1rem;
    margin: -.1rem;
    overflow: hidden;
    position: absolute;
    width: .1rem;
    &:focus + .form-icon {
      border-color: @primary-color;
      .control-shadow();
    }
    &:checked + .form-icon {
      background: @primary-color;
      border-color: @primary-color;
    }
  }

  .form-icon {
    border: @border-width solid @border-color-dark;
    .control-transition();
    cursor: pointer;
    display: inline-block;
    position: absolute;
  }
}

.form-checkbox,
.form-radio {
  padding: .2rem 2rem;

  .form-icon {
    height: 1.4rem;
    left: 0;
    top: .5rem;
    width: 1.4rem;
  }

  input {
    &:active + .form-icon {
      background: @bg-color-dark;
    }
  }
}
.form-checkbox {
  .form-icon {
    border-radius: @border-radius;
  }

  input {
    &:checked + .form-icon {
      &::before {
        background-clip: padding-box;
        border: .2rem solid @gray-color-lighter;
        border-left-width: 0;
        border-top-width: 0;
        content: "";
        height: 1rem;
        left: 50%;
        margin-left: -.3rem;
        margin-top: -.6rem;
        position: absolute;
        top: 50%;
        transform: rotate(45deg);
        width: .6rem;
      }
    }
    &:indeterminate + .form-icon {
      background: @primary-color;
      border-color: @primary-color;
      &::before {
        background: @bg-color-light;
        content: "";
        height: .2rem;
        left: 50%;
        margin-left: -.5rem;
        margin-top: -.1rem;
        position: absolute;
        top: 50%;
        width: 1rem;
      }
    }
  }
}
.form-radio {
  .form-icon {
    border-radius: .7rem;
  }

  input:checked + .form-icon {
    &::before {
      background: @bg-color-light;
      border-radius: @border-radius;
      content: "";
      height: .4rem;
      left: 50%;
      margin-left: -.2rem;
      margin-top: -.2rem;
      position: absolute;
      top: 50%;
      width: .4rem;
    }
  }
}

// Form element: Switch
.form-switch {
  padding: .2rem 2rem .2rem 3.6rem;

  .form-icon {
    background: @gray-color-light;
    background-clip: padding-box;
    border-radius: .9rem;
    height: 1.8rem;
    left: 0;
    top: .3rem;
    width: 3rem;
    &::before {
      background: @bg-color-light;
      border-radius: .8rem;
      content: "";
      display: block;
      height: 1.6rem;
      left: 0;
      position: absolute;
      top: 0;
      .control-transition();
      width: 1.6rem;
    }
  }

  input {
    &:checked + .form-icon {
      &::before {
        left: 1.2rem;
      }
    }
    &:active + .form-icon {
      &::before {
        background: @bg-color-dark;
      }
    }
  }
}

// Form element: Input groups
.input-group {
  display: flex;

  .input-group-addon {
    background: @bg-color;
    border: @border-width solid @border-color-dark;
    border-radius: @border-radius;
    line-height: 2rem;
    padding: .5rem .8rem;

    &.addon-sm {
      font-size: @font-size-sm;
      padding: .1rem .8rem;
    }
    &.addon-lg {
      font-size: @font-size-lg;
      padding: .9rem .8rem;
    }
  }
  .input-group-addon,
  .input-group-btn {
    flex: 1 0 auto;
  }

  .form-input,
  .input-group-addon,
  .input-group-btn {
    &:first-child:not(:last-child) {
      border-bottom-right-radius: 0;
      border-top-right-radius: 0;
    }
    &:not(:first-child):not(:last-child) {
      border-radius: 0;
      margin-left: -.1rem;
    }
    &:last-child:not(:first-child) {
      border-bottom-left-radius: 0;
      border-top-left-radius: 0;
      margin-left: -.1rem;
    }
    &:focus {
      z-index: @z-index-z0;
    }
  }

  &.input-inline {
    display: inline-flex;
  }
}

// Form disabled
.form-input,
.form-select {
  &:disabled,
  &.disabled {
    background-color: @bg-color-dark;
    cursor: not-allowed;
    opacity: .5;
  }
}

input {
  &:disabled,
  &.disabled {
    & + .form-icon {
      background: @bg-color-dark;
      border-color: @gray-color-light;
      cursor: not-allowed;
      opacity: .5;
    }
  }
}

.form-switch {
  input {
    &:disabled,
    &.disabled {
      & + .form-icon::before {
        background: @bg-color-light;
      }
    }
  }
}

// Form Horizontal
.form-horizontal {
  padding: @layout-gutter;

  .form-group {
    display: flex;
  }

  .form-checkbox,
  .form-radio,
  .form-switch {
    margin: .4rem 0;
  }
}