// Cards
$grid-gutter-width-base:     30px;

$card-spacer-x:            1.25rem !default;
$card-spacer-y:            .75rem !default;
$card-border-width:        1px !default;
$card-border-radius:       $border-rad-light;
$card-border-color:        rgba($black,.125) !default;
$card-border-radius-inner: calc(#{$card-border-radius} - #{$card-border-width}) !default;
$card-cap-bg:              $gray-1;
$card-bg:                  $white !default;

$card-link-hover-color:    $white !default;

$card-img-overlay-padding: 1.25rem !default;

$card-deck-margin:          ($grid-gutter-width-base / 2) !default;

$card-columns-count:        3 !default;
$card-columns-gap:          1.25rem !default;
$card-columns-margin:       $card-spacer-y !default;










// Card variants

@mixin card-variant($background, $border) {
  background-color: $background;
  border-color: $border;

  .card-header,
  .card-footer {
    background-color: transparent;
  }
}

@mixin card-outline-variant($color) {
  background-color: transparent;
  border-color: $color;
}

//
// Inverse text within a card for use with dark backgrounds
//

@mixin card-inverse {
  color: rgba(255,255,255,.65);

  .card-header,
  .card-footer {
    background-color: transparent;
    border-color: rgba(255,255,255,.2);
  }
  .card-header,
  .card-footer,
  .card-title,
  .card-blockquote {
    color: #fff;
  }
  .card-link,
  .card-text,
  .card-subtitle,
  .card-blockquote .blockquote-footer {
    color: rgba(255,255,255,.65);
  }
  .card-link {
    @include hover-focus {
      color: $card-link-hover-color;
    }
  }
}











//
// Base styles
//
@mixin aside-flush {
  padding: 0;
  border-radius: 0;
  background: none;
  .card-img-top {
    border-radius: 0;
  }
  .card-block {
    flex: 0;
  }
}

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  background-color: $card-bg;
  border: $card-border-width solid $card-border-color;
  border-radius: $card-border-radius;
  &-aside-flush-left {
    @include aside-flush;
    border-width: 0 1px 0 0;
  }
  &-aside-flush-right {
    @include aside-flush;
    border-width: 0 0 0 1px;
  }
  &-block {
    flex: 1 1 auto;
    padding: $card-spacer-x;
    &-separator {
      padding: $card-spacer-x 0;
      border-top: $card-border-width solid $card-border-color;
      border-bottom: $card-border-width solid $card-border-color;
      @include clearfix;
      &-group {
        display: -webkit-box;
        display: -webkit-flex;
        display: -ms-flexbox;
        display: flex;
        .card-block-separator {
          flex: 1 0 0;
          &:not(:first-child) {
            border-left: $card-border-width solid $card-border-color;
            padding-left: $card-spacer-x;
          }
          &:first-child {
            padding-right: $card-spacer-x;
          }
        }
      }
    }
    &:last-child .card-block-separator {
      padding: $card-spacer-x 0 0;
      border-bottom: 0;
    }
  }
}






.card-title {
  margin-bottom: $card-spacer-y;
}

.card-subtitle {
  margin-top: -($card-spacer-y / 2);
  margin-bottom: 0;
}

.card-text:last-child {
  margin-bottom: 0;
}

.card-link {
  &:hover {
    text-decoration: none;
  }

  + .card-link {
    margin-left: $card-spacer-x;
  }
}

.card {
  > .list-group:first-child {
    .list-group-item:first-child {
      @include border-top-radius($card-border-radius);
    }
  }

  > .list-group:last-child {
    .list-group-item:last-child {
      @include border-bottom-radius($card-border-radius);
    }
  }
}


//
// Optional textual caps
//

.card-header {
  padding: $card-spacer-y $card-spacer-x;
  margin-bottom: 0; // Removes the default margin-bottom of <hN>
  background-color: $card-cap-bg;
  border-bottom: $card-border-width solid $card-border-color;

  &:first-child {
    @include border-radius($card-border-radius-inner $card-border-radius-inner 0 0);
  }
}

.card-footer {
  padding: $card-spacer-y $card-spacer-x;
  background-color: $card-cap-bg;
  border-top: $card-border-width solid $card-border-color;

  &:last-child {
    @include border-radius(0 0 $card-border-radius-inner $card-border-radius-inner);
  }
}


//
// Header navs
//

.card-header-tabs {
  margin-right: -($card-spacer-x / 2);
  margin-bottom: -$card-spacer-y;
  margin-left: -($card-spacer-x / 2);
  border-bottom: 0;
}

.card-header-pills {
  margin-right: -($card-spacer-x / 2);
  margin-left: -($card-spacer-x / 2);
}


//
// Background variations
//

.card-primary {
  @include card-variant($brand-primary, $brand-primary);
}
.card-success {
  @include card-variant($brand-success, $brand-success);
}
.card-info {
  @include card-variant($brand-info, $brand-info);
}
.card-warning {
  @include card-variant($brand-warning, $brand-warning);
}
.card-danger {
  @include card-variant($brand-danger, $brand-danger);
}

// Remove all backgrounds
.card-outline-primary {
  @include card-outline-variant($power-royal);
}
.card-outline-secondary {
  @include card-outline-variant($gray-2);
}
.card-outline-info {
  @include card-outline-variant($power-blue);
}
.card-outline-success {
  @include card-outline-variant($power-royal);
}
.card-outline-warning {
  @include card-outline-variant($power-red);
}
.card-outline-danger {
  @include card-outline-variant($power-gold);
}

//
// Inverse text within a card for use with dark backgrounds
//

.card-inverse {
  @include card-inverse;
}

//
// Blockquote
//

.card-blockquote {
  padding: 0;
  margin-bottom: 0;
  border-left: 0;
}

// Card image
.card-img {
  // margin: -1.325rem;
  @include border-radius($card-border-radius-inner);
}
.card-img-overlay {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  padding: $card-img-overlay-padding;
}



// Card image caps
.card-img-top {
  @include border-top-radius($card-border-radius-inner);
}
.card-img-bottom {
  @include border-bottom-radius($card-border-radius-inner);
}


// Card deck
@include media-breakpoint-up(sm) {
  .card-deck {
    display: flex;
    flex-flow: row wrap;

    .card {
      display: flex;
      flex: 1 0 0;
      flex-direction: column;

      // Selectively apply horizontal margins to cards to avoid doing the
      // negative margin dance like our grid. This differs from the grid
      // due to the use of margins as gutters instead of padding.
      &:not(:first-child) { margin-left: $card-deck-margin; }
      &:not(:last-child) { margin-right: $card-deck-margin; }
    }
  }
}


//
// Card groups
//

@include media-breakpoint-up(sm) {
  .card-group {
    display: flex;
    flex-flow: row wrap;

    .card {
      flex: 1 0 0;

      + .card {
        margin-left: 0;
        border-left: 0;
      }

      // Handle rounded corners
      &:first-child {
        @include border-right-radius(0);

        .card-img-top {
          border-top-right-radius: 0;
        }
        .card-img-bottom {
          border-bottom-right-radius: 0;
        }
      }
      &:last-child {
        @include border-left-radius(0);

        .card-img-top {
          border-top-left-radius: 0;
        }
        .card-img-bottom {
          border-bottom-left-radius: 0;
        }
      }

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

        .card-img-top,
        .card-img-bottom {
          border-radius: 0;
        }
      }
    }
  }
}


//
// Columns
//

@include media-breakpoint-up(sm) {
  .card-columns {
    column-count: $card-columns-count;
    column-gap: $card-columns-gap;

    .card {
      display: inline-block; // Don't let them vertically span multiple columns
      width: 100%; // Don't let their width change
      margin-bottom: $card-columns-margin;
    }
  }
}