diff --git a/public/userarea/modal_partsTable.php b/public/userarea/modal_partsTable.php
index 143623a..75d945c 100644
--- a/public/userarea/modal_partsTable.php
+++ b/public/userarea/modal_partsTable.php
@@ -29,6 +29,9 @@
                         <div style="display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; min-width: 0;">
                             <h6 style="margin: 0; white-space: nowrap;">Elenco Parti</h6>
                             <div style="display: flex; align-items: center; min-width: 0; gap: 8px;">
+                                <button type="button" id="savePartsBtn" class="btn btn-success btn-sm">
+                                    <i class="fas fa-save"></i> Salva
+                                </button>
                                 <button type="button"
                                     class="btn btn-dark btn-sm open-analysis-modal-btn"
                                     id="openAnalysisModalBtn"
diff --git a/public/userarea/partsTable.js b/public/userarea/partsTable.js
index 777273e..c91a67e 100644
--- a/public/userarea/partsTable.js
+++ b/public/userarea/partsTable.js
@@ -245,7 +245,7 @@ $(document).ready(function () {
         $row.data("extra-value-id", valId);
 
         $(this).closest("td").find(".part-extra-value-id").val(valId);
-        saveRow($row);
+        markUnsaved();
     });
 
     $(document).on("click", ".extra-propagate-btn", function (e) {
@@ -316,9 +316,9 @@ $(document).ready(function () {
                     $row.data("extra-value-text", propagateValueText);
                 }
             }
-
-            saveRow($row);
         });
+
+        markUnsaved();
     });
 
     function applyExtraFieldColumn() {
@@ -530,6 +530,7 @@ $(document).ready(function () {
         const finishLoading = function () {
             unsavedChanges = false;
             isLoadingPartsRecord = false;
+            updateSaveBtnState();
 
             if (callback) callback();
         };
@@ -809,7 +810,11 @@ $(document).ready(function () {
         }
     }
 
-    $("#partsModal").on("hide.bs.modal", function (e) {
+    $(document).on("hide.bs.modal", "#partsModal", function (e) {
+        console.log(
+            "[partsModal] hide.bs.modal — unsavedChanges =",
+            unsavedChanges,
+        );
         if (
             unsavedChanges &&
             !confirm("Hai modifiche non salvate. Vuoi davvero uscire?")
@@ -987,15 +992,9 @@ $(document).ready(function () {
             .get();
         const maxPartNumber = partNumbers.length ? Math.max(...partNumbers) : 0;
 
-        // Crea la riga Mix
+        // Crea la riga Mix (verrà salvata col pulsante Salva)
         addNewRow(maxPartNumber + 1, true);
-        const $mixRow = $("#partsTableBody tr:last");
-
-        // Consenti SOLO ora la creazione (INSERT) della riga Mix
-        $mixRow.data("allowCreateMix", true);
-
-        // esegue SUBITO l'INSERT così ottieni part-id
-        saveRow($mixRow);
+        markUnsaved();
     });
 
     function extractPartId(response) {
@@ -1183,7 +1182,7 @@ $(document).ready(function () {
             })
             .last();
 
-        // Se non esiste una riga Mix, ne creo una e la INSERISCO SUBITO (come fa il bottone in header)
+        // Se non esiste una riga Mix, ne creo una nuova (salvata col pulsante Salva)
         if ($mixRow.length === 0) {
             const maxPartNumber = Math.max(
                 ...$("#partsTableBody tr")
@@ -1198,12 +1197,8 @@ $(document).ready(function () {
             addNewRow(maxPartNumber + 1, true);
             $mixRow = $("#partsTableBody tr:last");
             $mixRow.find(".part-description").val(`Mix ${partDescription}`);
-
-            // Consenti la creazione (INSERT) della riga Mix e salvala subito
-            $mixRow.data("allowCreateMix", true);
-
-            saveRow($mixRow); // -> INSERT
-            return; // la descrizione include già l'elemento appena aggiunto
+            markUnsaved();
+            return;
         }
 
         // Aggiorna la descrizione del Mix esistente
@@ -1214,22 +1209,7 @@ $(document).ready(function () {
             newDesc = currentMix + " + " + partDescription;
 
         $mixRow.find(".part-description").val(newDesc);
-
-        // Se il Mix è già in salvataggio (INSERT o UPDATE in corso), accodiamo un solo UPDATE
-        if ($mixRow.data("saving") === true) {
-            // evita più code accumulate
-            if (!$mixRow.data("pendingUpdate")) {
-                $mixRow.data("pendingUpdate", true);
-                $mixRow.one("row:saved", function () {
-                    $mixRow.removeData("pendingUpdate");
-                    // ora che saving è false, salviamo l'ultima descrizione impostata
-                    saveRow($mixRow);
-                });
-            }
-        } else {
-            // libero: salva subito
-            saveRow($mixRow);
-        }
+        markUnsaved();
     });
 
     function addNewRow(nextPartNumber, isMix = false) {
@@ -1291,186 +1271,21 @@ $(document).ready(function () {
     $(document).on("click", ".save-note-btn", function () {
         const $noteModal = $("#noteModal");
         const $row = $noteModal.data("row");
-        const partId = $noteModal.data("part-id");
         const note = $noteModal.find(".part-note").val().trim();
-        const iddatadb = $("#partsModal").data("iddatadb");
-        const idquotations = $("#partsModal").data("idquotations");
-        const endpoint = idquotations
-            ? "save_parts_quotation.php"
-            : "save_parts.php";
-        const data = idquotations
-            ? { idquotations: idquotations }
-            : { iddatadb: iddatadb };
 
-        // Raccogli tutti i dati della riga per evitare sovrascritture
-        const partNumber = $row.find(".part-number").val();
-        const partDescription = $row.find(".part-description").val().trim();
-        const mix = getRowMix($row);
-        const idmatrice = $row.find(".part-matrice").val() || null;
-        const dateexpiry = $row.find(".part-dateexpiry").val() || null;
-
-        if (partId && partId !== "new") {
-            const $saveStatus = $row.find(".save-status");
-            const $saveLoading = $row.find(".save-loading");
-            $saveLoading.show();
-            $saveStatus.hide();
-
-            $.ajax({
-                url: endpoint,
-                method: "POST",
-                data: JSON.stringify({
-                    ...data,
-                    parts: [
-                        {
-                            id: partId,
-                            part_number: partNumber,
-                            part_description: partDescription,
-                            mix: mix,
-                            idmatrice: idmatrice,
-                            note: note || null,
-                            dateexpiry: dateexpiry,
-                        },
-                    ],
-                }),
-                contentType: "application/json",
-                success: function (response) {
-                    $saveLoading.hide();
-                    if (response.success) {
-                        $row.data("note", note);
-                        $row.find(".note-btn").toggleClass("has-note", !!note);
-                        $saveStatus.show();
-                        setTimeout(() => $saveStatus.hide(), 2000);
-                        bootstrap.Modal.getInstance(
-                            document.getElementById("noteModal"),
-                        ).hide();
-                    } else {
-                        const errorMsg = $(
-                            '<div class="alert alert-danger temp-alert" role="alert">Errore nel salvataggio della nota: ' +
-                                response.message +
-                                "</div>",
-                        );
-                        $("#partsModal .modal-body").prepend(errorMsg);
-                        setTimeout(function () {
-                            errorMsg.fadeOut(500, function () {
-                                $(this).remove();
-                            });
-                        }, 5000);
-                    }
-                },
-                error: function (xhr, status, error) {
-                    $saveLoading.hide();
-                    const errorMsg = $(
-                        '<div class="alert alert-danger temp-alert" role="alert">Errore nel salvataggio della nota: ' +
-                            error +
-                            " (" +
-                            xhr.status +
-                            ")</div>",
-                    );
-                    $("#partsModal .modal-body").prepend(errorMsg);
-                    setTimeout(function () {
-                        errorMsg.fadeOut(500, function () {
-                            $(this).remove();
-                        });
-                    }, 5000);
-                },
-            });
-        } else {
-            $row.data("note", note);
-            $row.find(".note-btn").toggleClass("has-note", !!note);
-            bootstrap.Modal.getInstance(
-                document.getElementById("noteModal"),
-            ).hide();
-            markUnsaved();
-        }
+        $row.data("note", note);
+        $row.find(".note-btn").toggleClass("has-note", !!note);
+        bootstrap.Modal.getInstance(
+            document.getElementById("noteModal"),
+        ).hide();
+        markUnsaved();
     });
 
     // ===================
     // DATEEXPIRY HANDLING
     // ===================
     $(document).on("change", ".part-dateexpiry", function () {
-        const $input = $(this);
-        const $row = $input.closest("tr");
-        const partId = getPartId($row);
-        const dateexpiry = $input.val();
-        const iddatadb = $("#partsModal").data("iddatadb");
-        const idquotations = $("#partsModal").data("idquotations");
-        const endpoint = idquotations
-            ? "save_parts_quotation.php"
-            : "save_parts.php";
-        const data = idquotations
-            ? { idquotations: idquotations }
-            : { iddatadb: iddatadb };
-
-        // Raccogli tutti i dati della riga per evitare sovrascritture
-        const partNumber = $row.find(".part-number").val();
-        const partDescription = $row.find(".part-description").val().trim();
-        const mix = getRowMix($row);
-        const idmatrice = $row.find(".part-matrice").val() || null;
-        const note = $row.data("note") || null;
-
-        if (partId && partId !== "new") {
-            const $saveStatus = $row.find(".save-status");
-            const $saveLoading = $row.find(".save-loading");
-            $saveLoading.show();
-            $saveStatus.hide();
-
-            $.ajax({
-                url: endpoint,
-                method: "POST",
-                data: JSON.stringify({
-                    ...data,
-                    parts: [
-                        {
-                            id: partId,
-                            part_number: partNumber,
-                            part_description: partDescription,
-                            mix: mix,
-                            idmatrice: idmatrice,
-                            note: note,
-                            dateexpiry: dateexpiry || null,
-                        },
-                    ],
-                }),
-                contentType: "application/json",
-                success: function (response) {
-                    $saveLoading.hide();
-                    if (response.success) {
-                        $saveStatus.show();
-                        setTimeout(() => $saveStatus.hide(), 2000);
-                    } else {
-                        const errorMsg = $(
-                            '<div class="alert alert-danger temp-alert" role="alert">Errore nel salvataggio della data: ' +
-                                response.message +
-                                "</div>",
-                        );
-                        $("#partsModal .modal-body").prepend(errorMsg);
-                        setTimeout(function () {
-                            errorMsg.fadeOut(500, function () {
-                                $(this).remove();
-                            });
-                        }, 5000);
-                    }
-                },
-                error: function (xhr, status, error) {
-                    $saveLoading.hide();
-                    const errorMsg = $(
-                        '<div class="alert alert-danger temp-alert" role="alert">Errore nel salvataggio della data: ' +
-                            error +
-                            " (" +
-                            xhr.status +
-                            ")</div>",
-                    );
-                    $("#partsModal .modal-body").prepend(errorMsg);
-                    setTimeout(function () {
-                        errorMsg.fadeOut(500, function () {
-                            $(this).remove();
-                        });
-                    }, 5000);
-                },
-            });
-        } else {
-            markUnsaved();
-        }
+        markUnsaved();
     });
 
     // ===================
@@ -1688,7 +1503,7 @@ $(document).ready(function () {
         "blur",
         ".part-description, .part-number, .part-extra-field",
         function () {
-            saveRow($(this).closest("tr"));
+            markUnsaved();
         },
     );
 
@@ -2033,11 +1848,17 @@ $(document).ready(function () {
                 const item = (data.results || [])[0];
                 if (item) {
                     const option = new Option(item.text, item.id, true, true);
-                    if (!fromFilter) $select.append(option).trigger("change");
+                    if (!fromFilter)
+                        $select
+                            .append(option)
+                            .trigger("change", [{ skipHandler: true }]);
                     else $select.append(option);
                     partMatrice[partNumber] = item.id;
                 } else {
-                    if (!fromFilter) $select.val(null).trigger("change");
+                    if (!fromFilter)
+                        $select
+                            .val(null)
+                            .trigger("change", [{ skipHandler: true }]);
                     partMatrice[partNumber] = null;
                 }
             });
@@ -2050,71 +1871,10 @@ $(document).ready(function () {
 
             const idmatrice = $(this).val();
             const $row = $(this).closest("tr");
-            const partId = $row.data("part-id");
             const partNumber = $row.find(".part-number").val();
-            const $saveStatus = $row.find(".save-status");
-            const $saveLoading = $row.find(".save-loading");
 
             partMatrice[partNumber] = idmatrice || null;
-
-            if (partId && partId !== "new") {
-                $saveLoading.show();
-                $saveStatus.hide();
-                const iddatadb = $("#partsModal").data("iddatadb");
-                const idquotations = $("#partsModal").data("idquotations");
-                const endpoint = idquotations
-                    ? "save_matrice_quotation.php"
-                    : "save_matrice.php";
-                const data = idquotations
-                    ? { idquotations: idquotations }
-                    : { iddatadb: iddatadb };
-
-                $.ajax({
-                    url: endpoint,
-                    method: "POST",
-                    data: JSON.stringify({
-                        ...data,
-                        parts: [{ id: partId, idmatrice: idmatrice || null }],
-                    }),
-                    contentType: "application/json",
-                    success: function (response) {
-                        if (response.success) {
-                            $saveLoading.hide();
-                            $saveStatus.show();
-                            setTimeout(() => $saveStatus.hide(), 2000);
-                        } else {
-                            const errorMsg = $(
-                                '<div class="alert alert-danger temp-alert" role="alert">Errore nel salvataggio della matrice: ' +
-                                    response.message +
-                                    "</div>",
-                            );
-                            $("#partsModal .modal-body").prepend(errorMsg);
-                            setTimeout(function () {
-                                errorMsg.fadeOut(500, function () {
-                                    $(this).remove();
-                                });
-                            }, 5000);
-                            $saveLoading.hide();
-                        }
-                    },
-                    error: function (xhr, status, error) {
-                        const errorMsg = $(
-                            '<div class="alert alert-danger temp-alert" role="alert">Errore nel salvataggio della matrice: ' +
-                                error +
-                                " (" +
-                                xhr.status +
-                                ")</div>",
-                        );
-                        $("#partsModal .modal-body").prepend(errorMsg);
-                        setTimeout(function () {
-                            errorMsg.fadeOut(500, function () {
-                                $(this).remove();
-                            });
-                        }, 5000);
-                        $saveLoading.hide();
-                    },
-                });
-            }
+            markUnsaved();
         });
 
         // Messaggio se macro selezionata ma nessun risultato sarà gestito dal placeholder Select2
@@ -2178,7 +1938,153 @@ $(document).ready(function () {
             }, 5000);
         }
     });
+    function saveAllParts(done = null) {
+        const $rows = $("#partsTableBody tr");
+        const iddatadb = $("#partsModal").data("iddatadb");
+        const idquotations = $("#partsModal").data("idquotations");
+        const endpoint = idquotations
+            ? "save_parts_quotation.php"
+            : "save_parts.php";
+        const ctx = idquotations ? { idquotations } : { iddatadb };
 
+        if (!iddatadb && !idquotations) {
+            if (done) done(false);
+            return;
+        }
+
+        // Stesso criterio del PHP: una riga nuova viene salvata solo se ha
+        // descrizione, nota o data. Filtriamo qui per tenere l'allineamento
+        // per indice tra righe inviate e results[] restituiti.
+        const rowHasContent = ($row) => {
+            const hasId = !!getPartId($row);
+            const desc = $row.find(".part-description").val().trim();
+            const note = $row.data("note") || "";
+            const date = $row.find(".part-dateexpiry").val() || "";
+            return hasId || desc || note || date;
+        };
+
+        const $rowsToSave = $rows.filter(function () {
+            return rowHasContent($(this));
+        });
+
+        const partsToSave = $rowsToSave
+            .map(function () {
+                const $row = $(this);
+                return {
+                    id: getPartId($row), // null se "new"/""
+                    part_number: $row.find(".part-number").val(),
+                    part_description: $row
+                        .find(".part-description")
+                        .val()
+                        .trim(),
+                    mix: getRowMix($row),
+                    idmatrice: $row.find(".part-matrice").val() || null,
+                    dateexpiry: $row.find(".part-dateexpiry").val() || null,
+                    note: $row.data("note") || null,
+
+                    extra_field_id:
+                        $row.find(".part-extra-field-id").val() || null,
+                    extra_value_id:
+                        $row.find(".part-extra-value-id").val() || null,
+                    extra_value_text: $row.find(".part-extra-field").length
+                        ? ($row.find(".part-extra-field").val() || "").trim()
+                        : null,
+                };
+            })
+            .get();
+
+        if (partsToSave.length === 0) {
+            unsavedChanges = false;
+            if (done) done(true);
+            return;
+        }
+
+        const $btn = $("#savePartsBtn");
+        const originalHtml = $btn.length ? $btn.html() : "";
+        if ($btn.length) {
+            $btn.prop("disabled", true).html(
+                '<i class="fas fa-spinner fa-spin"></i> Salvataggio...',
+            );
+        }
+
+        $rowsToSave.find(".save-loading").show();
+        $rowsToSave.find(".save-status").hide();
+
+        $.ajax({
+            url: endpoint,
+            method: "POST",
+            data: JSON.stringify({ ...ctx, parts: partsToSave }),
+            contentType: "application/json",
+            success: function (response) {
+                if ($btn.length)
+                    $btn.prop("disabled", false).html(originalHtml);
+                $rowsToSave.find(".save-loading").hide();
+
+                if (response.success) {
+                    // results[] è nell'ordine delle righe inviate
+                    const results = response.results || [];
+                    $rowsToSave.each(function (i) {
+                        const r = results[i];
+                        const newId = r ? r.part_id || r.id : null;
+                        if (newId) setPartId($(this), newId);
+                    });
+
+                    $rowsToSave.find(".save-status").show();
+                    setTimeout(
+                        () => $rowsToSave.find(".save-status").hide(),
+                        2000,
+                    );
+
+                    unsavedChanges = false;
+                    updateSaveBtnState();
+
+                    if (!$("#quotationeBtn").hasClass("d-none"))
+                        $("#quotationeBtn").addClass("d-none");
+
+                    if (done) done(true);
+                } else {
+                    const errorMsg = $(
+                        '<div class="alert alert-danger temp-alert" role="alert">Errore nel salvataggio: ' +
+                            (response.message || "Errore sconosciuto") +
+                            "</div>",
+                    );
+                    $("#partsModal .modal-body").prepend(errorMsg);
+                    setTimeout(() => {
+                        errorMsg.fadeOut(500, function () {
+                            $(this).remove();
+                        });
+                    }, 5000);
+                    if (done) done(false);
+                }
+            },
+            error: function (xhr, status, error) {
+                if ($btn.length)
+                    $btn.prop("disabled", false).html(originalHtml);
+                $rowsToSave.find(".save-loading").hide();
+                const errorMsg = $(
+                    '<div class="alert alert-danger temp-alert" role="alert">Errore nel salvataggio: ' +
+                        error +
+                        " (" +
+                        xhr.status +
+                        ")</div>",
+                );
+                $("#partsModal .modal-body").prepend(errorMsg);
+                setTimeout(() => {
+                    errorMsg.fadeOut(500, function () {
+                        $(this).remove();
+                    });
+                }, 5000);
+                if (done) done(false);
+            },
+        });
+    }
+
+    $(document).on("click", "#savePartsBtn", function (e) {
+        e.preventDefault();
+        saveAllParts();
+    });
+
+    window.saveAllParts = saveAllParts;
     function renumberParts() {
         console.log(
             "Inizio rinumera parts, numero righe:",
@@ -2318,16 +2224,37 @@ $(document).ready(function () {
     function markUnsaved() {
         if (isLoadingPartsRecord) return;
 
-        if (!unsavedChanges) {
-            unsavedChanges = true;
-        }
+        unsavedChanges = true;
+        updateSaveBtnState();
     }
 
+    // Aggiorna aspetto del tasto Salva in base a unsavedChanges
+    function updateSaveBtnState() {
+        const $btn = $("#savePartsBtn");
+        if (!$btn.length) return;
+
+        if (unsavedChanges) {
+            $btn.removeClass("btn-success").addClass("btn-danger");
+        } else {
+            $btn.removeClass("btn-danger").addClass("btn-success");
+        }
+    }
+    // Catch-all: modifiche manuali negli input della tabella parti segnano "non salvato".
+    // I <select> (matrici Select2) sono esclusi: le loro modifiche reali sono già
+    // gestite in initializeSelect2, mentre l'inizializzazione async genererebbe falsi positivi.
     $(document).on(
-        "input change",
-        "#partsTableBody input, #partsTableBody select",
-        markUnsaved,
+        "input keyup",
+        "#partsTableBody input:not(.part-matrice), #partsTableBody textarea",
+        function () {
+            markUnsaved();
+        },
     );
+
+    $(window).on("beforeunload", function () {
+        if (unsavedChanges && $("#partsModal").hasClass("show")) {
+            return "Hai modifiche non salvate.";
+        }
+    });
     $(document).on(
         "click",
         ".add-row-global, .add-mix-global, .add-mix-row, .remove-row, .propagate-matrice-btn, .propagate-all-btn, .note-btn",
@@ -2612,102 +2539,8 @@ $(document).ready(function () {
 
 $(document).on("change", ".propagate-date-input", function () {
     const dateexpiry = $(this).val();
-    const iddatadb = $("#partsModal").data("iddatadb");
-    const idquotations = $("#partsModal").data("idquotations");
-    const endpoint = idquotations
-        ? "save_parts_quotation.php"
-        : "save_parts.php";
-    const data = idquotations
-        ? { idquotations: idquotations }
-        : { iddatadb: iddatadb };
-
-    const partsToSave = [];
-    $("#partsTableBody tr").each(function () {
-        const $row = $(this);
-        const partId = $row.data("part-id");
-        const partNumber = $row.find(".part-number").val();
-        const partDescription = $row.find(".part-description").val().trim();
-        const mix = $row.attr("data-is-mix") === "Y" ? "Y" : "N";
-        const idmatrice = $row.find(".part-matrice").val() || null;
-        const note = $row.data("note") || null;
-
-        partsToSave.push({
-            id: partId && partId !== "new" ? partId : null,
-            part_number: partNumber,
-            part_description: partDescription,
-            mix: mix,
-            idmatrice: idmatrice,
-            note: note,
-            dateexpiry: dateexpiry || null,
-        });
-
-        if (partId && partId !== "new") {
-            $row.find(".save-loading").show();
-            $row.find(".save-status").hide();
-        }
-    });
-
-    if (partsToSave.length > 0) {
-        $.ajax({
-            url: endpoint,
-            method: "POST",
-            data: JSON.stringify({
-                ...data,
-                parts: partsToSave,
-            }),
-            contentType: "application/json",
-            success: function (response) {
-                $("#partsTableBody tr").each(function () {
-                    const $row = $(this);
-                    const partId = $row.data("part-id");
-                    if (partId && partId !== "new") {
-                        $row.find(".save-loading").hide();
-                        $row.find(".save-status").show();
-                        setTimeout(
-                            () => $row.find(".save-status").hide(),
-                            2000,
-                        );
-                    }
-                    $row.find(".part-dateexpiry").val(dateexpiry);
-                });
-                if (!response.success) {
-                    const errorMsg = $(
-                        '<div class="alert alert-danger temp-alert" role="alert">Errore nel salvataggio della data comune: ' +
-                            response.message +
-                            "</div>",
-                    );
-                    $("#partsModal .modal-body").prepend(errorMsg);
-                    setTimeout(function () {
-                        errorMsg.fadeOut(500, function () {
-                            $(this).remove();
-                        });
-                    }, 5000);
-                }
-            },
-            error: function (xhr, status, error) {
-                $("#partsTableBody tr").each(function () {
-                    const $row = $(this);
-                    $row.find(".save-loading").hide();
-                });
-                const errorMsg = $(
-                    '<div class="alert alert-danger temp-alert" role="alert">Errore nel salvataggio della data comune: ' +
-                        error +
-                        " (" +
-                        xhr.status +
-                        ")</div>",
-                );
-                $("#partsModal .modal-body").prepend(errorMsg);
-                setTimeout(function () {
-                    errorMsg.fadeOut(500, function () {
-                        $(this).remove();
-                    });
-                }, 5000);
-            },
-        });
-    } else {
-        $("#partsTableBody tr").find(".part-dateexpiry").val(dateexpiry);
-        markUnsaved();
-    }
+    $("#partsTableBody tr").find(".part-dateexpiry").val(dateexpiry);
+    markUnsaved();
 });
 
 $(document).on("click", ".propagate-note-btn", function () {
@@ -2723,113 +2556,16 @@ $(document).on("click", ".propagate-note-btn", function () {
 $(document).on("click", ".save-common-note-btn", function () {
     const $commonNoteModal = $("#commonNoteModal");
     const note = $commonNoteModal.find(".part-note").val().trim();
-    const iddatadb = $("#partsModal").data("iddatadb");
-    const idquotations = $("#partsModal").data("idquotations");
-    const endpoint = idquotations
-        ? "save_parts_quotation.php"
-        : "save_parts.php";
-    const data = idquotations
-        ? { idquotations: idquotations }
-        : { iddatadb: iddatadb };
 
-    const partsToSave = [];
     $("#partsTableBody tr").each(function () {
         const $row = $(this);
-        const partId = $row.data("part-id");
-        const partNumber = $row.find(".part-number").val();
-        const partDescription = $row.find(".part-description").val().trim();
-        const mix = $row.attr("data-is-mix") === "Y" ? "Y" : "N";
-        const idmatrice = $row.find(".part-matrice").val() || null;
-        const dateexpiry = $row.find(".part-dateexpiry").val() || null;
-
-        partsToSave.push({
-            id: partId && partId !== "new" ? partId : null,
-            part_number: partNumber,
-            part_description: partDescription,
-            mix: mix,
-            idmatrice: idmatrice,
-            note: note || null,
-            dateexpiry: dateexpiry,
-        });
-
-        if (partId && partId !== "new") {
-            $row.find(".save-loading").show();
-            $row.find(".save-status").hide();
-        }
+        $row.data("note", note);
+        $row.find(".note-btn").toggleClass("has-note", !!note);
     });
-
-    if (partsToSave.length > 0) {
-        $.ajax({
-            url: endpoint,
-            method: "POST",
-            data: JSON.stringify({
-                ...data,
-                parts: partsToSave,
-            }),
-            contentType: "application/json",
-            success: function (response) {
-                $("#partsTableBody tr").each(function () {
-                    const $row = $(this);
-                    const partId = $row.data("part-id");
-                    if (partId && partId !== "new") {
-                        $row.find(".save-loading").hide();
-                        $row.find(".save-status").show();
-                        setTimeout(
-                            () => $row.find(".save-status").hide(),
-                            2000,
-                        );
-                    }
-                    $row.data("note", note);
-                    $row.find(".note-btn").toggleClass("has-note", !!note);
-                });
-                bootstrap.Modal.getInstance(
-                    document.getElementById("commonNoteModal"),
-                ).hide();
-                if (!response.success) {
-                    const errorMsg = $(
-                        '<div class="alert alert-danger temp-alert" role="alert">Errore nel salvataggio della nota comune: ' +
-                            response.message +
-                            "</div>",
-                    );
-                    $("#partsModal .modal-body").prepend(errorMsg);
-                    setTimeout(function () {
-                        errorMsg.fadeOut(500, function () {
-                            $(this).remove();
-                        });
-                    }, 5000);
-                }
-            },
-            error: function (xhr, status, error) {
-                $("#partsTableBody tr").each(function () {
-                    const $row = $(this);
-                    $row.find(".save-loading").hide();
-                });
-                const errorMsg = $(
-                    '<div class="alert alert-danger temp-alert" role="alert">Errore nel salvataggio della nota comune: ' +
-                        error +
-                        " (" +
-                        xhr.status +
-                        ")</div>",
-                );
-                $("#partsModal .modal-body").prepend(errorMsg);
-                setTimeout(function () {
-                    errorMsg.fadeOut(500, function () {
-                        $(this).remove();
-                    });
-                }, 5000);
-            },
-        });
-    } else {
-        $("#partsTableBody tr").each(function () {
-            const $row = $(this);
-            $row.data("note", note);
-            $row.find(".note-btn").toggleClass("has-note", !!note);
-        });
-        bootstrap.Modal.getInstance(
-            document.getElementById("commonNoteModal"),
-        ).hide();
-        markUnsaved();
-    }
+    bootstrap.Modal.getInstance(
+        document.getElementById("commonNoteModal"),
+    ).hide();
+    markUnsaved();
 });
 
 $(document).on("click", "#showHideImageBtn", function () {
@@ -2991,3 +2727,98 @@ $(document).on("click", "#showHideImageBtn", function () {
     window.initPartsResizableColumns = init;
     window.applyPartsColumnWidths = syncColgroupToHeaders;
 })();
+// ===================
+// NAVIGAZIONE TABELLA PARTI CON FRECCE TASTIERA
+// ===================
+(function () {
+    // Selettore dei campi navigabili in ogni riga, in ordine di colonna.
+    // I select Matrice (Select2) sono esclusi di proposito.
+    const NAV_SELECTOR =
+        ".part-number, .part-description, .part-dateexpiry, .part-extra-field";
+
+    // Ritorna la lista ordinata dei campi navigabili della riga
+    function navFields($row) {
+        return $row.find(NAV_SELECTOR).filter(":visible");
+    }
+
+    // Il cursore è all'inizio del testo dell'input?
+    function atStart(el) {
+        if (el.type === "date" || el.type === "number") return true;
+        return el.selectionStart === 0 && el.selectionEnd === 0;
+    }
+
+    // Il cursore è alla fine del testo dell'input?
+    function atEnd(el) {
+        if (el.type === "date" || el.type === "number") return true;
+        const len = (el.value || "").length;
+        return el.selectionStart === len && el.selectionEnd === len;
+    }
+
+    function focusField($field) {
+        if (!$field || !$field.length) return;
+        const el = $field.get(0);
+        el.focus();
+        // Seleziona il testo per comodità (non sui date input)
+        if (el.type !== "date" && typeof el.select === "function") {
+            try {
+                el.select();
+            } catch (e) {}
+        }
+    }
+
+    $(document).on("keydown", "#partsTableBody " + NAV_SELECTOR, function (e) {
+        // Ignora se un dropdown Select2 è aperto
+        if ($(".select2-container--open").length) return;
+
+        const key = e.key;
+        if (
+            key !== "ArrowUp" &&
+            key !== "ArrowDown" &&
+            key !== "ArrowLeft" &&
+            key !== "ArrowRight"
+        ) {
+            return;
+        }
+
+        const el = this;
+        const $cur = $(el);
+        const $row = $cur.closest("tr");
+        const fields = navFields($row);
+        const colIndex = fields.index(el);
+        if (colIndex === -1) return;
+
+        // --- SU / GIÙ: stessa colonna, riga adiacente ---
+        if (key === "ArrowUp" || key === "ArrowDown") {
+            const $targetRow =
+                key === "ArrowUp" ? $row.prev("tr") : $row.next("tr");
+            if (!$targetRow.length) return;
+
+            e.preventDefault();
+            const targetFields = navFields($targetRow);
+            // Stessa colonna se esiste, altrimenti l'ultima disponibile
+            const $target = targetFields.eq(colIndex).length
+                ? targetFields.eq(colIndex)
+                : targetFields.last();
+            focusField($target);
+            return;
+        }
+
+        // --- SINISTRA: campo precedente, solo se cursore a inizio testo ---
+        if (key === "ArrowLeft") {
+            if (!atStart(el)) return; // lascia muovere il cursore nel testo
+            if (colIndex <= 0) return;
+            e.preventDefault();
+            focusField(fields.eq(colIndex - 1));
+            return;
+        }
+
+        // --- DESTRA: campo successivo, solo se cursore a fine testo ---
+        if (key === "ArrowRight") {
+            if (!atEnd(el)) return;
+            if (colIndex >= fields.length - 1) return;
+            e.preventDefault();
+            focusField(fields.eq(colIndex + 1));
+            return;
+        }
+    });
+})();