$checkbox-size-default: 22px;
$radio-size-default: 20px;
$checkbox-size-lg: 26px;
$checkbox-color-default: inherit;
$input-bg-disabled: $bg-faded;
$checkbox-border-color-default: $border-color-default;
$font-family-icon: 'FontAwesome';
$check-icon: "\f00c";

.checkbox {
  position: relative;
  padding-left: $checkbox-size-default;
  display: block;
  margin-top: .5rem;
  margin-bottom: .5rem;

  label {
    position: relative;
    padding-left: 10px;
    margin: 0;
    min-height: $checkbox-size-default;
    vertical-align: middle;
    cursor: pointer;
    &:empty {
      padding-left: 0;
    }
  }

  label::before,
  label::after,
  input[type="checkbox"] {
    height: $checkbox-size-default;
    width: $checkbox-size-default;
    position: absolute;
    left: 0;
    top: 0;
  }
  
  label::before, 
  label::after {
    content: '';
    margin-left: -$checkbox-size-default;
  }

  label::before {
    background: #fff;
    border: 1px solid $checkbox-border-color-default;
    transition: background .15s, border-color .15s;
    border-radius: $border-radius;
  }

  label::after {
    line-height: $checkbox-size-default;
    color: $checkbox-color-default;
    font-family: $font-family-icon;
    text-align: center;
    background-color: transparent;
    font-style: normal;
    color: $gray-light;
    font-size: .875rem;
  }

  input[type="checkbox"] {
    opacity: 0;
    z-index: 1;
    cursor: pointer;

    &:checked + label::after {
      content: $check-icon;
    }
    
    &:indeterminate + label::after {
      display: block;
      content: "";
      width: 10px;
      height: 3px;
      background-color: #555555;
      border-radius: 2px;
      margin-left: -16.5px;
      margin-top: 7px;
    }

    &:disabled {
      cursor: not-allowed;
    }

    &:disabled + label {
      opacity: 0.65;
      cursor: not-allowed;
      &::before{
        background-color: $input-bg-disabled;
      }
    }
  }

  &.checkbox-circle label::before {
    border-radius: 50%;
  }
  
  &.checkbox-square label::before {
    border-radius: 0;
  }

  &.checkbox-lg {
    padding-left: $checkbox-size-lg;
    label {
      padding-left: 12px;
      min-height: $checkbox-size-lg;
    }

    label::before, 
    label::after,
    input[type="checkbox"] {
      width: $checkbox-size-lg;
      height: $checkbox-size-lg;
    }
    
    label::before, 
    label::after {
      margin-left: -$checkbox-size-lg;
    }

    label::after {
      line-height: $checkbox-size-lg;
      font-size: 1rem;
    }
  }

  &.checkbox-inline {
    display: inline-block;
  }
}

.radio {
  position: relative;
  padding-left: $radio-size-default;
  display: block;
  margin-top: .5rem;
  margin-bottom: .5rem;

  label {
    position: relative;
    padding-left: .5rem;
    margin: 0;
    min-height: $radio-size-default;
    vertical-align: middle;
    cursor: pointer;
    &:empty {
      padding-left: 0;
    }
  }


  label::before,
  input[type="radio"] {
    height: $radio-size-default;
    width: $radio-size-default;
    position: absolute;
    left: 0;
    top: 0;
  }
  
  label::before, 
  label::after {
    content: ' ';
    margin-left: -$radio-size-default;
  }

  label::before{
    border: 1px solid #ccc;
    border-radius: 50%;
    background-color: #fff;
    transition: border 0.15s ease-in-out;
  }

  label::after {
    position: absolute;
    width: 12px;
    height: 12px;
    left: 4px;
    top: 4px;
    border-radius: 50%;
    background-color: $gray-light;
    transform: scale(0, 0);
    transition: transform .1s cubic-bezier(.8,-0.33,.2,1.33);
  }

  input[type="radio"] {
    opacity: 0;
    z-index: 1;
    cursor: pointer;

    &:checked + label::after{
      transform: scale(1, 1);
    }

    &:disabled{
      cursor: not-allowed;
    }

    &:disabled + label{
      opacity: 0.65;
      cursor: not-allowed;

      &::before{
        cursor: not-allowed;
      }
    }
  }

  &.radio-inline {
    display: inline-block;
  }
}

@include checkbox-variant('.checkbox-primary', $brand-primary);
@include checkbox-variant('.checkbox-danger', $brand-danger);
@include checkbox-variant('.checkbox-info', $brand-info);
@include checkbox-variant('.checkbox-warning', $brand-warning);
@include checkbox-variant('.checkbox-success', $brand-success);
@include checkbox-variant('.checkbox-inverse', $brand-inverse);
@include checkbox-variant('.checkbox-black', $brand-black);

@include checkbox-variant-indeterminate('.checkbox-primary', $brand-primary);
@include checkbox-variant-indeterminate('.checkbox-danger', $brand-danger);
@include checkbox-variant-indeterminate('.checkbox-info', $brand-info);
@include checkbox-variant-indeterminate('.checkbox-warning', $brand-warning);
@include checkbox-variant-indeterminate('.checkbox-success', $brand-success);
@include checkbox-variant-indeterminate('.checkbox-inverse', $brand-inverse);
@include checkbox-variant-indeterminate('.checkbox-black', $brand-black);

@include radio-variant('.radio-primary', $brand-primary);
@include radio-variant('.radio-danger', $brand-danger);
@include radio-variant('.radio-info', $brand-info);
@include radio-variant('.radio-warning', $brand-warning);
@include radio-variant('.radio-success', $brand-success);
@include radio-variant('.radio-inverse', $brand-inverse);
@include radio-variant('.radio-black', $brand-black);