//
// Base styles
//

.card {
	position: relative;
	display: flex;
	flex-direction: column;
	min-width: 0;
	word-wrap: break-word;
	background-color: $card-bg;
	background-clip: border-box;
	border: $card-border-width solid $card-border-color;
	@include border-radius($card-border-radius);

	> hr {
		margin-right: 0;
		margin-left: 0;
	}

	> .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);
		}
	}
}

.card-body {
	// Enable `flex-grow: 1` for decks and groups so that card blocks take up
	// as much space as possible, ensuring footers are aligned to the bottom.
	flex: 1 1 auto;
	padding: $card-spacer-x;
}

.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 {
	@include hover {
		text-decoration: none;
	}

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

//
// 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-inner-border-radius $card-inner-border-radius 0 0);
	}

	+ .list-group {
		.list-group-item:first-child {
			border-top: 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-inner-border-radius $card-inner-border-radius);
	}
}

//
// 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);
}

// Card image
.card-img-overlay {
	position: absolute;
	top: 0;
	right: 0;
	bottom: 0;
	left: 0;
	padding: $card-img-overlay-padding;
}

.card-img {
	width: 100%; // Required because we use flexbox and this inherently applies align-self: stretch
	@include border-radius($card-inner-border-radius);
}

// Card image caps
.card-img-top {
	width: 100%; // Required because we use flexbox and this inherently applies align-self: stretch
	@include border-top-radius($card-inner-border-radius);
}

.card-img-bottom {
	width: 100%; // Required because we use flexbox and this inherently applies align-self: stretch
	@include border-bottom-radius($card-inner-border-radius);
}

// Card deck

.card-deck {
	display: flex;
	flex-direction: column;

	.card {
		margin-bottom: $card-deck-margin;
	}

	@include media-breakpoint-up(sm) {
		flex-flow: row wrap;
		margin-right: -$card-deck-margin;
		margin-left: -$card-deck-margin;

		.card {
			display: flex;
			// Flexbugs #4: https://github.com/philipwalton/flexbugs#4-flex-shorthand-declarations-with-unitless-flex-basis-values-are-ignored
			flex: 1 0 0%;
			flex-direction: column;
			margin-right: $card-deck-margin;
			margin-bottom: 0; // Override the default
			margin-left: $card-deck-margin;
		}
	}
}

//
// Card groups
//

.card-group {
	display: flex;
	flex-direction: column;

	.card {
		margin-bottom: $card-group-margin;
	}

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

		.card {
			// Flexbugs #4: https://github.com/philipwalton/flexbugs#4-flex-shorthand-declarations-with-unitless-flex-basis-values-are-ignored
			flex: 1 0 0%;
			margin-bottom: 0;

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

			// Handle rounded corners
			@if $enable-rounded {
				&: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;
					}
				}

				&:only-child {
					@include border-radius($card-border-radius);

					.card-img-top {
						@include border-top-radius($card-border-radius);
					}
					.card-img-bottom {
						@include border-bottom-radius($card-border-radius);
					}
				}

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

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

//
// Columns
//

.card-columns {
	.card {
		margin-bottom: $card-columns-margin;
	}

	@include media-breakpoint-up(sm) {
		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
		}
	}
}