// .modal-open/close  - toggle visibility
// .modal             - container to scroll within
// .modal-dialog      - positioning shell for the actual modal
// .modal-content     - actual modal w/ bg and corners and shit


// toggle visibility
.modal--open {
  display: block !important;
}

.modal--close {
  display: none !important;
}

// Container that the modal scrolls within
.modal {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  display: none;
  z-index: $zindex-modal;
  overflow: hidden;
  // Prevent Chrome on Windows from adding a focus outline. For details, see
  // https://github.com/twbs/bootstrap/pull/10951.
  outline: 0;
  -webkit-overflow-scrolling: touch;

  // When fading in the modal, animate it to slide down
  &.fade .modal__dialog {
    transform: translate(0, -25%);
    transition: transform .3s ease-out;
  }
  &.in .modal__dialog { transform: translate(0, 0); }
}
.modal--open.modal {
  overflow-x: hidden;
  overflow-y: auto;
}

// Shell div to position the modal with bottom padding
.modal__dialog {
  position: relative;
  width: auto;
  margin: $spacer;
}

// Actual modal
.modal__content {
  position: relative;
  background-color: $modal-content-bg;
  background-clip: padding-box;
  border: $border-width solid $modal-content-border-color;
  border-radius: $border-radius-lg;
  @include box-shadow(0 3px 9px rgba(0,0,0,.5));
  // Remove focus outline from opened modal
  outline: 0;
}

// Modal background
.modal-backdrop {
  display: none;
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: $zindex-modal-bg;
  background-color: $modal-backdrop-bg;

  &--open {
    opacity: $modal-backdrop-opacity;
    display: block;
  }
  
  &--close {
    opacity: 0;
    display: none;
  }
}

// Modal header
// Top section of the modal w/ title and dismiss
.modal__header {
  padding: $modal-title-padding;
  border-bottom: $border-width solid $modal-header-border-color;
  @include clearfix;
}
// Close icon
.modal__header .close {
  line-height: $modal-title-line-height;
  width: $spacer * 2;
}

// Title text within header
.modal__heading {
  margin: 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;
  padding: $modal-inner-padding;
}

// Footer (for actions)
.modal__footer {
  background-color: $gray-lightest;
  border-radius: 0 0 $border-radius $border-radius;
  padding: $modal-inner-padding;
  text-align: right; // right align buttons
  border-top: $border-width solid $modal-footer-border-color;
  @include clearfix(); // clear it in case folks use .pull-* classes on buttons

  // Properly space out buttons
  .button + .button {
    margin-bottom: 0; // account for input[type="submit"] which gets the bottom margin like all other inputs
    margin-left: 5px;
  }
  // but override that for button groups
  .button-group .button + .button {
    margin-left: -$border-width;
  }
  // and override it for block buttons as well
  .button--block + .button--block {
    margin-left: 0;
  }
}

// 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: $modal-md;
    width: 100%;
    margin: ($spacer * 2) auto;
  }
  .modal__content {
    @include box-shadow(0 5px 15px rgba(0,0,0,.5));
  }

  // Modal sizes
  .modal--sm { 
    .modal__dialog {
      width: $modal-sm; 
    }
  }
}

@include media-breakpoint-up(md) {
  .modal--lg { 
    .modal__dialog {
      width: $modal-lg; 
    }
  }
}