.o_website_page_templates_dialog {
    max-height: $modal-lg !important;

    .modal-body {
        display: flex;
        padding: 0;

        .list-group {
            --list-group-active-bg: #{$o-brand-primary};
            --list-group-active-border-color: #{$o-brand-primary};
            --list-group-active-color: #{color-contrast($o-brand-primary)};

            min-width: 200px;
            max-width: 250px;
        }
    }

    .o_website_page_templates_pane.active {
        // Avoid using "display: [none/block]" to trigger the tabs behavior
        // because doing so would recalculate iframes' height.
        z-index: 1;
    }

    .o_page_template {
        $-iframe-width: 1024;
        $-preview-width: 275; // Empirically obtained
        $-preview-width-xl: 220; // Empirically obtained
        $-preview-width-lg: 408; // Empirically obtained
        width: #{$-preview-width}px;
        box-shadow: 0 0 1rem rgba(0, 0, 0, 0.16);

        @include media-breakpoint-down(xl) {
            width: #{$-preview-width-xl}px;
        }
        @include media-breakpoint-down(lg) {
            width: #{$-preview-width-lg}px;
        }

        .o_page_template_preview {
            // Resize iframe:
            height: 300px;
            min-height: 100px;
            padding: 0;
            overflow: hidden;

            iframe {
                width: #{$-iframe-width}px;
                transform: scale($-preview-width / $-iframe-width);
                @include media-breakpoint-down(xl) {
                    transform: scale($-preview-width-xl / $-iframe-width);
                }
                @include media-breakpoint-down(lg) {
                    transform: scale($-preview-width-lg / $-iframe-width);
                }
                transform-origin: 0 0;
            }

            &, iframe {
                opacity: 0;
                transition: height 300ms ease-in, opacity 300ms ease 300ms;
            }
        }

        .placeholder {
            transition: opacity 1s ease;
        }

        .o_button_area {
            opacity: 0;
            outline: $border-width * 2 solid $o-we-handles-accent-color;
            outline-offset: $border-width * -1;
        }

        &:empty {
            opacity: 0; // Hide empty column filler
        }

        &.o_loading {
            cursor: wait;
        }

        &.o_ready {
            .placeholder {
                animation: none;
                opacity: 0;
            }

            .o_page_template_preview, iframe {
                opacity: 1;
            }

            &:hover, &:focus-within {
                box-shadow: 0 .5rem 2rem rgba(0, 0, 0, 0.2);

                .o_button_area {
                    opacity: 1;
                }
            }
        }
    }
}