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+// .modal-open - body class for killing the scroll
+// .modal - container to scroll within
+// .modal-dialog - positioning shell for the actual modal
+// .modal-content - actual modal w/ bg and corners and stuff
+
+
+.modal-open {
+ // Kill the scroll on the body
+ overflow: hidden;
+
+ .modal {
+ overflow-x: hidden;
+ overflow-y: auto;
+ }
+}
+
+// Container that the modal scrolls within
+.modal {
+ position: fixed;
+ top: 0;
+ right: 0;
+ bottom: 0;
+ left: 0;
+ z-index: $zindex-modal;
+ display: none;
+ overflow: hidden;
+ // Prevent Chrome on Windows from adding a focus outline. For details, see
+ // https://github.com/twbs/bootstrap/pull/10951.
+ outline: 0;
+ // We deliberately don't use `-webkit-overflow-scrolling: touch;` due to a
+ // gnarly iOS Safari bug: https://bugs.webkit.org/show_bug.cgi?id=158342
+ // See also https://github.com/twbs/bootstrap/issues/17695
+}
+
+// Shell div to position the modal with bottom padding
+.modal-dialog {
+ position: relative;
+ width: auto;
+ margin: $modal-dialog-margin;
+ // allow clicks to pass through for custom click handling to close modal
+ pointer-events: none;
+
+ // When fading in the modal, animate it to slide down
+ .modal.fade & {
+ @include transition($modal-transition);
+ transform: translate(0, -25%);
+ }
+ .modal.show & {
+ transform: translate(0, 0);
+ }
+}
+
+.modal-dialog-centered {
+ display: flex;
+ align-items: center;
+ min-height: calc(100% - (#{$modal-dialog-margin} * 2));
+
+ // Ensure `modal-dialog-centered` extends the full height of the view (IE10/11)
+ &::before {
+ display: block; // IE10
+ height: calc(100vh - (#{$modal-dialog-margin} * 2));
+ content: "";
+ }
+}
+
+// Actual modal
+.modal-content {
+ position: relative;
+ display: flex;
+ flex-direction: column;
+ width: 100%; // Ensure `.modal-content` extends the full width of the parent `.modal-dialog`
+ // counteract the pointer-events: none; in the .modal-dialog
+ pointer-events: auto;
+ background-color: $modal-content-bg;
+ background-clip: padding-box;
+ border: $modal-content-border-width solid $modal-content-border-color;
+ @include border-radius($modal-content-border-radius);
+ @include box-shadow($modal-content-box-shadow-xs);
+ // Remove focus outline from opened modal
+ outline: 0;
+}
+
+// Modal background
+.modal-backdrop {
+ position: fixed;
+ top: 0;
+ right: 0;
+ bottom: 0;
+ left: 0;
+ z-index: $zindex-modal-backdrop;
+ background-color: $modal-backdrop-bg;
+
+ // Fade for backdrop
+ &.fade { opacity: 0; }
+ &.show { opacity: $modal-backdrop-opacity; }
+}
+
+// Modal header
+// Top section of the modal w/ title and dismiss
+.modal-header {
+ display: flex;
+ align-items: flex-start; // so the close btn always stays on the upper right corner
+ justify-content: space-between; // Put modal header elements (title and dismiss) on opposite ends
+ padding: $modal-header-padding;
+ border-bottom: $modal-header-border-width solid $modal-header-border-color;
+ @include border-top-radius($modal-content-border-radius);
+
+ .close {
+ padding: $modal-header-padding;
+ // auto on the left force icon to the right even when there is no .modal-title
+ margin: (-$modal-header-padding) (-$modal-header-padding) (-$modal-header-padding) auto;
+ }
+}
+
+// Title text within header
+.modal-title {
+ margin-bottom: 0;
+ line-height: $modal-title-line-height;
+}
+
+// Modal body
+// Where all modal content resides (sibling of .modal-header and .modal-footer)
+.modal-body {
+ position: relative;
+ // Enable `flex-grow: 1` so that the body take up as much space as possible
+ // when should there be a fixed height on `.modal-dialog`.
+ flex: 1 1 auto;
+ padding: $modal-inner-padding;
+}
+
+// Footer (for actions)
+.modal-footer {
+ display: flex;
+ align-items: center; // vertically center
+ justify-content: flex-end; // Right align buttons with flex property because text-align doesn't work on flex items
+ padding: $modal-inner-padding;
+ border-top: $modal-footer-border-width solid $modal-footer-border-color;
+
+ // Easily place margin between footer elements
+ > :not(:first-child) { margin-left: .25rem; }
+ > :not(:last-child) { margin-right: .25rem; }
+}
+
+// Measure scrollbar width for padding body during modal show/hide
+.modal-scrollbar-measure {
+ position: absolute;
+ top: -9999px;
+ width: 50px;
+ height: 50px;
+ overflow: scroll;
+}
+
+// Scale up the modal
+@include media-breakpoint-up(sm) {
+ // Automatically set modal's width for larger viewports
+ .modal-dialog {
+ max-width: $modal-md;
+ margin: $modal-dialog-margin-y-sm-up auto;
+ }
+
+ .modal-dialog-centered {
+ min-height: calc(100% - (#{$modal-dialog-margin-y-sm-up} * 2));
+
+ &::before {
+ height: calc(100vh - (#{$modal-dialog-margin-y-sm-up} * 2));
+ }
+
+ }
+
+ .modal-content {
+ @include box-shadow($modal-content-box-shadow-sm-up);
+ }
+
+ .modal-sm { max-width: $modal-sm; }
+
+}
+
+@include media-breakpoint-up(lg) {
+ .modal-lg { max-width: $modal-lg; }
+}