diff --git a/resources/views/marketplace/offers.php b/resources/views/marketplace/offers.php
index 90f7d25..2eca7e6 100644
--- a/resources/views/marketplace/offers.php
+++ b/resources/views/marketplace/offers.php
@@ -1,5 +1,6 @@
 <?php $integrationData = is_array($integration ?? null) ? $integration : []; ?>
 <?php $rows = is_array($offers ?? null) ? $offers : []; ?>
+<?php $integrationId = (int) ($integrationData['id'] ?? 0); ?>
 
 <section class="card">
   <h1><?= $e($t('marketplace.offers_title', ['name' => (string) ($integrationData['name'] ?? '')])) ?></h1>
@@ -29,6 +30,7 @@
             <th>SKU</th>
             <th>EAN</th>
             <th><?= $e($t('marketplace.fields.updated_at')) ?></th>
+            <th>Kategorie</th>
           </tr>
         </thead>
         <tbody>
@@ -48,6 +50,14 @@
               <td><?= $e((string) ($row['product_sku'] ?? '')) ?></td>
               <td><?= $e((string) ($row['product_ean'] ?? '')) ?></td>
               <td><?= $e((string) ($row['updated_at'] ?? '')) ?></td>
+              <td>
+                <button
+                  type="button"
+                  class="btn btn--secondary js-assign-categories"
+                  data-integration-id="<?= $e((string) $integrationId) ?>"
+                  data-product-id="<?= $e((string) ($row['external_product_id'] ?? '')) ?>"
+                >Przypisz kategorie</button>
+              </td>
             </tr>
           <?php endforeach; ?>
         </tbody>
@@ -56,3 +66,212 @@
   <?php endif; ?>
 </section>
 
+<!-- Modal: przypisywanie kategorii shopPRO -->
+<div id="cat-modal-backdrop" class="jq-alert-modal-backdrop" style="display:none" aria-hidden="true">
+  <div class="jq-alert-modal" role="dialog" aria-modal="true" aria-labelledby="cat-modal-title" style="max-width:520px;width:100%">
+    <div class="jq-alert-modal__header">
+      <h3 id="cat-modal-title">Przypisz kategorie</h3>
+    </div>
+    <div class="jq-alert-modal__body" style="max-height:420px;overflow-y:auto">
+      <div id="cat-modal-loading">Ładowanie kategorii...</div>
+      <div id="cat-modal-error" class="alert alert--danger" style="display:none"></div>
+      <div id="cat-modal-tree" style="display:none"></div>
+    </div>
+    <div class="jq-alert-modal__footer">
+      <button type="button" class="btn btn--secondary" id="cat-modal-cancel">Anuluj</button>
+      <button type="button" class="btn btn--primary" id="cat-modal-save" style="display:none">Zapisz</button>
+    </div>
+  </div>
+</div>
+
+<script>
+(function () {
+  'use strict';
+
+  var CSRF = <?= json_encode($csrfToken ?? '') ?>;
+  var backdrop = document.getElementById('cat-modal-backdrop');
+  var treeEl   = document.getElementById('cat-modal-tree');
+  var loadingEl = document.getElementById('cat-modal-loading');
+  var errorEl  = document.getElementById('cat-modal-error');
+  var saveBtn  = document.getElementById('cat-modal-save');
+  var cancelBtn = document.getElementById('cat-modal-cancel');
+
+  var state = { integrationId: 0, productId: 0, cachedCategories: null, cachedIntegrationId: 0 };
+
+  // Open modal on button click
+  document.addEventListener('click', function (e) {
+    var btn = e.target.closest('.js-assign-categories');
+    if (!btn) return;
+    state.integrationId = parseInt(btn.dataset.integrationId, 10) || 0;
+    state.productId     = parseInt(btn.dataset.productId, 10) || 0;
+    if (state.integrationId <= 0 || state.productId <= 0) return;
+    openModal();
+    loadData();
+  });
+
+  function openModal() {
+    backdrop.style.display = '';
+    backdrop.setAttribute('aria-hidden', 'false');
+    backdrop.classList.add('is-visible');
+    loadingEl.style.display = '';
+    treeEl.style.display = 'none';
+    errorEl.style.display = 'none';
+    saveBtn.style.display = 'none';
+    treeEl.innerHTML = '';
+  }
+
+  function closeModal() {
+    backdrop.classList.remove('is-visible');
+    backdrop.style.display = 'none';
+    backdrop.setAttribute('aria-hidden', 'true');
+  }
+
+  cancelBtn.addEventListener('click', closeModal);
+  backdrop.addEventListener('click', function (e) { if (e.target === backdrop) closeModal(); });
+  document.addEventListener('keydown', function (e) {
+    if (e.key === 'Escape' && backdrop.style.display !== 'none') closeModal();
+  });
+
+  // Load categories + current product categories in parallel
+  function loadData() {
+    var iid = state.integrationId;
+    var pid = state.productId;
+
+    var categoriesPromise;
+    if (state.cachedIntegrationId === iid && state.cachedCategories !== null) {
+      categoriesPromise = Promise.resolve(state.cachedCategories);
+    } else {
+      categoriesPromise = fetch('/marketplace/' + iid + '/categories', {
+        headers: { 'Accept': 'application/json' }
+      })
+      .then(function (r) { return r.json(); })
+      .then(function (d) {
+        if (!d.ok) throw new Error(d.message || 'Błąd pobierania kategorii');
+        state.cachedCategories = d.categories;
+        state.cachedIntegrationId = iid;
+        return d.categories;
+      });
+    }
+
+    var currentPromise = fetch('/marketplace/' + iid + '/product/' + pid + '/categories', {
+      headers: { 'Accept': 'application/json' }
+    })
+    .then(function (r) { return r.json(); })
+    .then(function (d) {
+      if (!d.ok) throw new Error(d.message || 'Błąd pobierania kategorii produktu');
+      return d.current_category_ids || [];
+    });
+
+    Promise.all([categoriesPromise, currentPromise])
+      .then(function (res) { renderTree(res[0], res[1]); })
+      .catch(function (err) { showError(err.message || 'Nieznany błąd'); });
+  }
+
+  // Build tree from flat list
+  function buildTree(flat) {
+    var map = {}, roots = [];
+    flat.forEach(function (c) { map[c.id] = { id: c.id, parent_id: c.parent_id, title: c.title, children: [] }; });
+    flat.forEach(function (c) {
+      if (c.parent_id && map[c.parent_id]) {
+        map[c.parent_id].children.push(map[c.id]);
+      } else {
+        roots.push(map[c.id]);
+      }
+    });
+    return roots;
+  }
+
+  function renderNode(node, checked) {
+    var li = document.createElement('li');
+    li.style.cssText = 'list-style:none;padding:0';
+
+    var row = document.createElement('div');
+    row.style.cssText = 'display:flex;align-items:center;gap:6px;padding:3px 0';
+
+    if (node.children.length > 0) {
+      var toggle = document.createElement('button');
+      toggle.type = 'button';
+      toggle.textContent = '▶';
+      toggle.style.cssText = 'background:none;border:none;cursor:pointer;font-size:10px;padding:0 2px;color:#666';
+      toggle.addEventListener('click', function () {
+        var sub = li.querySelector('ul');
+        if (sub) { sub.hidden = !sub.hidden; toggle.textContent = sub.hidden ? '▶' : '▼'; }
+      });
+      row.appendChild(toggle);
+    } else {
+      var sp = document.createElement('span');
+      sp.style.display = 'inline-block'; sp.style.width = '16px';
+      row.appendChild(sp);
+    }
+
+    var label = document.createElement('label');
+    label.style.cssText = 'display:flex;align-items:center;gap:5px;cursor:pointer';
+    var cb = document.createElement('input');
+    cb.type = 'checkbox'; cb.value = String(node.id);
+    cb.checked = checked.indexOf(node.id) !== -1;
+    label.appendChild(cb);
+    label.appendChild(document.createTextNode(node.title));
+    row.appendChild(label);
+    li.appendChild(row);
+
+    if (node.children.length > 0) {
+      var ul = document.createElement('ul');
+      ul.style.cssText = 'padding-left:20px;margin:0';
+      node.children.forEach(function (ch) { ul.appendChild(renderNode(ch, checked)); });
+      li.appendChild(ul);
+    }
+    return li;
+  }
+
+  function renderTree(flat, checked) {
+    var roots = buildTree(flat);
+    var ul = document.createElement('ul');
+    ul.style.cssText = 'padding:0;margin:0';
+    if (roots.length === 0) {
+      treeEl.textContent = 'Brak dostępnych kategorii.';
+    } else {
+      roots.forEach(function (r) { ul.appendChild(renderNode(r, checked)); });
+      treeEl.appendChild(ul);
+    }
+    loadingEl.style.display = 'none';
+    treeEl.style.display = '';
+    saveBtn.style.display = '';
+  }
+
+  function showError(msg) {
+    loadingEl.style.display = 'none';
+    errorEl.textContent = msg;
+    errorEl.style.display = '';
+  }
+
+  // Save
+  saveBtn.addEventListener('click', function () {
+    var cbs = treeEl.querySelectorAll('input[type=checkbox]:checked');
+    var ids = [];
+    cbs.forEach(function (cb) { var id = parseInt(cb.value, 10); if (id > 0) ids.push(id); });
+
+    saveBtn.disabled = true;
+    saveBtn.textContent = 'Zapisuję...';
+
+    fetch('/marketplace/' + state.integrationId + '/product/' + state.productId + '/categories', {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json', 'Accept': 'application/json' },
+      body: JSON.stringify({ _token: CSRF, category_ids: ids })
+    })
+    .then(function (r) { return r.json(); })
+    .then(function (d) {
+      saveBtn.disabled = false; saveBtn.textContent = 'Zapisz';
+      if (d.ok) {
+        closeModal();
+        if (window.OrderProAlerts) window.OrderProAlerts.show({ type: 'success', message: 'Kategorie zapisane.', timeout: 3000 });
+      } else {
+        if (window.OrderProAlerts) window.OrderProAlerts.show({ type: 'danger', message: d.message || 'Błąd zapisu.', timeout: 5000 });
+      }
+    })
+    .catch(function (err) {
+      saveBtn.disabled = false; saveBtn.textContent = 'Zapisz';
+      if (window.OrderProAlerts) window.OrderProAlerts.show({ type: 'danger', message: 'Błąd sieci: ' + err.message, timeout: 5000 });
+    });
+  });
+})();
+</script>