function ensurePcTypeSelectionModalOnBody() {
            var modals = document.querySelectorAll('#pcTypeSelectionModal');
            if (modals.length > 1) {
                for (var di = 1; di < modals.length; di++) {
                    modals[di].parentNode.removeChild(modals[di]);
                }
            }
            var modalEl = document.getElementById('pcTypeSelectionModal');
            if (modalEl && modalEl.parentElement !== document.body) {
                document.body.appendChild(modalEl);
            }
        }

        window.ensurePcTypeSelectionModalOnBody = ensurePcTypeSelectionModalOnBody;

        function bindPcTypeSelectionFocusTrap($modal) {
            $modal.off('keydown.pmsPcTypeFocusTrap');
            $modal.on('keydown.pmsPcTypeFocusTrap', function(event) {
                if (event.key !== 'Tab') {
                    return;
                }
                var $focusable = $modal.find(
                    'button:not([disabled]), [href], input:not([disabled]):not([type="hidden"]), select:not([disabled]), textarea:not([disabled]), [tabindex]:not([tabindex="-1"])'
                ).filter(':visible');
                if (!$focusable.length) {
                    return;
                }
                var first = $focusable.first()[0];
                var last = $focusable.last()[0];
                if (event.shiftKey && document.activeElement === first) {
                    event.preventDefault();
                    last.focus();
                } else if (!event.shiftKey && document.activeElement === last) {
                    event.preventDefault();
                    first.focus();
                }
            });
        }

        function isPcTypeSelectionStackedContext() {
            return $('#projectDetailsModal').hasClass('show');
        }

        window.pmsOpenPcTypeSelectionModal = function(options) {
            options = options || {};
            ensurePcTypeSelectionModalOnBody();
            var $modal = $('#pcTypeSelectionModal');
            var stacked = options.stacked === true || (options.stacked !== false && isPcTypeSelectionStackedContext());

            if (stacked) {
                document.body.classList.add('pc-type-selection-stacked-open');
            } else {
                document.body.classList.remove('pc-type-selection-stacked-open');
            }

            if ($modal.hasClass('show')) {
                return;
            }

            $modal.modal({
                backdrop: true,
                keyboard: true,
                focus: true,
                show: true
            });
        };

        function setPcTypeSelectionLoadingState(message) {
            window.__pmsPcRevFlags = null;
            $('input[name="pc_type_choice"]').prop('checked', false);
            $('#pcTypeSelectionProceed').prop('disabled', true);
            $('#pcTypeSelectionHelp').text('');
            // Hide create cards until eligibility returns — avoids flash of PC-II…PC-V on UR/revised schemes.
            $('#pcTypeSelectionModal .pc-type-card-item').hide();
            setPcTypeCardEnabled($('#pcTypeOptionConcept'), false);
            setPcTypeCardEnabled($('#pcTypeOption1'), false);
            setPcTypeCardEnabled($('#pcTypeOption2'), false);
            setPcTypeCardEnabled($('#pcTypeOption3'), false);
            setPcTypeCardEnabled($('#pcTypeOption4'), false);
            setPcTypeCardEnabled($('#pcTypeOption5'), false);
        }

        /**
         * Prepare project context and open Select PC (scheme details → Generate PC).
         *
         * @param {string|number|null} projectId
         */
        window.pmsPrepareAndOpenPcTypeSelectionModal = function(projectId) {
            ensurePcTypeSelectionModalOnBody();

            $('input[name="pc_type_choice"]').prop('checked', false);
            $('#pcTypeSelectionProceed').prop('disabled', true);

            if (projectId != null && String(projectId) !== '') {
                $('#pcTypeSelectionProjectId').val(String(projectId));
                // Scheme-scoped: do not enable all cards before eligibility API applies.
                setPcTypeSelectionLoadingState();
            } else {
                $('#pcTypeSelectionProjectId').val('');
                $('#pcTypeSelectionHelp').text('');
                resetPcTypeSelectionModalLabels();
            }

            window.pmsOpenPcTypeSelectionModal({ stacked: isPcTypeSelectionStackedContext() });
        };

        $('#pcTypeSelectionModal').on('show.bs.modal', function() {
            document.body.classList.add('pc-type-selection-modal-active');
            if (isPcTypeSelectionStackedContext()) {
                document.body.classList.add('pc-type-selection-stacked-open');
            }
        });

        function syncPcTypeModalBackdropStack() {
            var $backdrops = $('body > .modal-backdrop');
            var modalCount = $('.modal.show').length;

            $backdrops.each(function(index) {
                var $backdrop = $(this);
                $backdrop.css('z-index', '');
                if (document.body.classList.contains('pc-type-selection-stacked-open')) {
                    $backdrop.css('z-index', index === 0 ? 1045 : 1080);
                } else if (index === $backdrops.length - 1) {
                    $backdrop.css('z-index', 1045);
                }
            });

            if (modalCount > 0 && $backdrops.length > modalCount) {
                $backdrops.slice(modalCount).remove();
            }
        }

        function cleanupPcTypeModalUiState() {
            document.body.classList.remove('pc-type-selection-modal-active');
            document.body.classList.remove('pc-type-selection-stacked-open');
            $('#pcTypeSelectionModal').css('z-index', '').off('keydown.pmsPcTypeFocusTrap');

            var openModals = $('.modal.show').length;
            var backdrops = $('body > .modal-backdrop').length;

            if (openModals === 0 && backdrops > 0) {
                $('body > .modal-backdrop').remove();
                $('body').removeClass('modal-open').css({ overflow: '', 'padding-right': '' });
            } else if (openModals > 0 && backdrops > openModals) {
                $('body > .modal-backdrop').slice(openModals).remove();
            }

            if ($('#projectDetailsModal').hasClass('show')) {
                $('body').addClass('modal-open');
            }
        }

        $('#pcTypeSelectionModal').on('shown.bs.modal', function() {
            var $modal = $('#pcTypeSelectionModal');

            if (isPcTypeSelectionStackedContext()) {
                document.body.classList.add('pc-type-selection-stacked-open');
            }

            syncPcTypeModalBackdropStack();
            bindPcTypeSelectionFocusTrap($modal);

            var $firstChoice = $modal.find('.pc-type-card-input:not(:disabled)').first();
            if ($firstChoice.length) {
                $firstChoice.focus();
            } else {
                $modal.find('.close').trigger('focus');
            }
        });

        $('#pcTypeSelectionModal').on('hidden.bs.modal.pmsPcTypeUi', function() {
            cleanupPcTypeModalUiState();
        });

        var PMS_CAN_CREATE_CONCEPT_NOTE =