weseek__growi/apps/app/src/styles/_modal.scss

@mixin expand-modal-fullscreen($hasModalHeader: true, $hasModalFooter: true, $margin: 1rem, $css-modules: false) {
  // full-screen modal
  width: auto;
  max-width: unset !important;
  height: calc(100vh - $margin * 2);
  margin: $margin !important;

  // Use :global() for CSS Modules to keep Bootstrap class names unhashed
  @if $css-modules {
    :global(.modal-content) {
      height: calc(100vh - $margin * 2);
    }
  } @else {
    .modal-content {
      height: calc(100vh - $margin * 2);
    }
  }

  // expand .modal-body (with calculating height)
  $modal-header: 54px;
  $modal-footer: 46px;
  $margin-body: 0;

  @if $hasModalHeader {
    $margin-body: $margin-body + $modal-header;
  }

  @if $hasModalFooter {
    $margin-body: $margin-body + $modal-footer;
  }

  @if $css-modules {
    :global(.modal-body) {
      height: calc(100% - #{$margin-body});
      padding: $margin;
    }
  } @else {
    .modal-body {
      height: calc(100% - #{$margin-body});
      padding: $margin;
    }
  }
}

// expanded window layout
.modal-dialog.grw-modal-expanded {
  @include expand-modal-fullscreen(true, true);
}

// expanded window layout without modal-header & modal-footer
.modal-dialog.grw-body-only-modal-expanded {
  @include expand-modal-fullscreen(false, false);
}