diff --git a/web/templates/base.html b/web/templates/base.html
index 5e4b886..ec2b138 100644
--- a/web/templates/base.html
+++ b/web/templates/base.html
@@ -79,6 +79,24 @@
         </div>
     </div>
 
+    <!-- Price Diff Modal -->
+    <div id="price-diff-modal" class="fixed inset-0 bg-black bg-opacity-50 flex items-center justify-center z-50 hidden p-4">
+        <div class="bg-white rounded-lg shadow-xl w-full max-w-2xl max-h-[90vh] flex flex-col">
+            <div class="p-5 border-b border-gray-200 flex-shrink-0 flex justify-between items-center">
+                <h3 class="text-lg font-semibold text-gray-900">Изменение цен</h3>
+                <button onclick="closePriceDiffModal()" class="text-gray-400 hover:text-gray-600">
+                    <svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M6 18L18 6M6 6l12 12"/>
+                    </svg>
+                </button>
+            </div>
+            <div id="price-diff-modal-body" class="overflow-y-auto flex-1 p-5 space-y-5"></div>
+            <div class="p-4 border-t border-gray-200 flex-shrink-0 flex justify-end">
+                <button onclick="closePriceDiffModal()" class="px-4 py-2 bg-gray-600 text-white rounded hover:bg-gray-700 text-sm">Закрыть</button>
+            </div>
+        </div>
+    </div>
+
     <!-- Sync Info Modal -->
     <div id="sync-modal" class="fixed inset-0 bg-black bg-opacity-50 flex items-center justify-center z-50 hidden p-4">
         <div class="bg-white rounded-lg shadow-xl max-w-lg w-full max-h-[90vh] flex flex-col">
@@ -517,6 +535,121 @@
         //     }
         // }
 
+        // ==================== SHARED PRICE REFRESH UTILITIES ====================
+
+        async function fetchLatestEstimatePricelistId() {
+            try {
+                const resp = await fetch('/api/pricelists?active_only=true&source=estimate&per_page=1');
+                if (!resp.ok) return null;
+                const data = await resp.json();
+                const list = data.pricelists || data.items || data;
+                if (Array.isArray(list) && list.length > 0) return Number(list[0].id);
+            } catch(_) {}
+            return null;
+        }
+
+        function _fmtMoneyDiff(value) {
+            if (!Number.isFinite(Number(value))) return 'N/A';
+            return '$ ' + Math.round(Number(value)).toLocaleString('ru-RU');
+        }
+
+        function _fmtArrow(prev, next) {
+            const diff = next - prev;
+            if (Math.abs(diff) < 0.5) return '';
+            const pct = prev > 0 ? Math.round((diff / prev) * 100) : 0;
+            const sign = diff > 0 ? '+' : '';
+            const color = diff > 0 ? 'text-red-600' : 'text-green-600';
+            return ` <span class="${color} text-xs font-medium">(${sign}${pct}%)</span>`;
+        }
+
+        function _buildDiffRow(lot, qty, prev, next) {
+            const prevLine = prev * qty;
+            const nextLine = next * qty;
+            const delta = next - prev;
+            const arrowColor = delta > 0 ? 'text-red-600' : 'text-green-600';
+            return `<tr class="border-b border-gray-100 last:border-0">
+                <td class="py-1.5 pr-3 text-sm text-gray-700 font-mono">${lot}</td>
+                <td class="py-1.5 px-2 text-sm text-right text-gray-500">${qty}</td>
+                <td class="py-1.5 px-2 text-sm text-right whitespace-nowrap">
+                    <span class="text-gray-400 line-through text-xs">${_fmtMoneyDiff(prev)}</span>
+                    <span class="${arrowColor} font-medium ml-1">${_fmtMoneyDiff(next)}</span>
+                </td>
+                <td class="py-1.5 pl-2 text-sm text-right whitespace-nowrap">
+                    <span class="text-gray-400 line-through text-xs">${_fmtMoneyDiff(prevLine)}</span>
+                    <span class="${arrowColor} font-medium ml-1">${_fmtMoneyDiff(nextLine)}</span>
+                </td>
+            </tr>`;
+        }
+
+        function showPriceDiffModal(results) {
+            const body = document.getElementById('price-diff-modal-body');
+            if (!body) return;
+
+            const sections = results.filter(r => !r.skipped);
+            if (sections.length === 0) {
+                body.innerHTML = '<p class="text-gray-500 text-sm text-center py-4">Обновление цен отключено для всех конфигураций</p>';
+                document.getElementById('price-diff-modal').classList.remove('hidden');
+                return;
+            }
+
+            let html = '';
+            let anyChanges = false;
+
+            for (const r of sections) {
+                if (r.error) {
+                    html += `<div class="text-sm text-red-600 bg-red-50 rounded px-3 py-2">${r.configName ? `<span class="font-medium">${r.configName}:</span> ` : ''}Ошибка обновления цен</div>`;
+                    continue;
+                }
+
+                const diffs = (r.itemDiffs || []).filter(d => Math.abs(d.prevPrice - d.newPrice) > 0.01);
+                const totalDelta = (r.newTotal || 0) - (r.prevTotal || 0);
+
+                if (results.length > 1) {
+                    html += `<div class="text-sm font-semibold text-gray-800 mb-1">${r.configName || '—'}</div>`;
+                }
+
+                if (diffs.length === 0) {
+                    html += `<div class="text-sm text-gray-500 bg-gray-50 rounded px-3 py-2 mb-2">Изменений нет</div>`;
+                } else {
+                    anyChanges = true;
+                    html += `<div class="overflow-x-auto mb-2">
+                        <table class="w-full text-left">
+                            <thead>
+                                <tr class="border-b border-gray-200 text-xs text-gray-500 uppercase">
+                                    <th class="pb-1 pr-3 font-medium">Компонент</th>
+                                    <th class="pb-1 px-2 text-right font-medium">Кол.</th>
+                                    <th class="pb-1 px-2 text-right font-medium">Цена / шт.</th>
+                                    <th class="pb-1 pl-2 text-right font-medium">Сумма</th>
+                                </tr>
+                            </thead>
+                            <tbody>${diffs.map(d => _buildDiffRow(d.lot_name, d.quantity, d.prevPrice, d.newPrice)).join('')}</tbody>
+                        </table>
+                    </div>`;
+                }
+
+                const totalColor = totalDelta > 0 ? 'text-red-600' : totalDelta < 0 ? 'text-green-600' : 'text-gray-600';
+                const totalArrow = _fmtArrow(r.prevTotal || 0, r.newTotal || 0);
+                html += `<div class="flex justify-between items-center text-sm bg-gray-50 rounded px-3 py-2 mb-1">
+                    <span class="text-gray-600 font-medium">Итог конфигурации</span>
+                    <span>
+                        <span class="text-gray-400 line-through text-xs mr-1">${_fmtMoneyDiff(r.prevTotal || 0)}</span>
+                        <span class="${totalColor} font-semibold">${_fmtMoneyDiff(r.newTotal || 0)}</span>${totalArrow}
+                    </span>
+                </div>`;
+            }
+
+            if (!anyChanges && sections.every(r => !r.error)) {
+                html = '<div class="text-sm text-gray-500 text-center py-6">Цены актуальны — изменений нет</div>' + html;
+            }
+
+            body.innerHTML = html;
+            document.getElementById('price-diff-modal').classList.remove('hidden');
+        }
+
+        function closePriceDiffModal() {
+            document.getElementById('price-diff-modal')?.classList.add('hidden');
+        }
+
         // Call functions immediately to ensure they run even before DOMContentLoaded
         // This ensures username and admin link are visible ASAP
         loadDBUser();
diff --git a/web/templates/index.html b/web/templates/index.html
index bb5a647..6f03bbf 100644
--- a/web/templates/index.html
+++ b/web/templates/index.html
@@ -2817,7 +2817,6 @@ async function exportCSVWithCustomPrice() {
 }
 
 async function refreshPrices() {
-    // RBAC disabled - no token check required
     if (!configUUID) return;
     if (disablePriceRefresh) {
         showToast('Обновление цен отключено в настройках', 'error');
@@ -2834,30 +2833,7 @@ async function refreshPrices() {
             refreshBtn.className = 'px-4 py-2 bg-gray-300 text-gray-500 rounded cursor-not-allowed';
         }
 
-        let serverSyncSkipped = false;
-        try {
-            const statusResp = await fetch('/api/sync/status');
-            const statusData = statusResp.ok ? await statusResp.json() : null;
-            if (statusData && statusData.is_online) {
-                const componentSyncResp = await fetch('/api/sync/components', { method: 'POST' });
-                if (!componentSyncResp.ok) throw new Error('component sync failed');
-
-                const pricelistSyncResp = await fetch('/api/sync/pricelists', { method: 'POST' });
-                if (!pricelistSyncResp.ok) throw new Error('pricelist sync failed');
-            } else {
-                serverSyncSkipped = true;
-            }
-        } catch(syncErr) {
-            if (syncErr.message === 'component sync failed' || syncErr.message === 'pricelist sync failed') {
-                throw syncErr;
-            }
-            serverSyncSkipped = true;
-        }
-
-        await Promise.all([
-            loadActivePricelists(true),
-            loadAllComponents()
-        ]);
+        await loadActivePricelists(true);
 
         ['estimate', 'warehouse', 'competitor'].forEach(source => {
             const latest = activePricelistsBySource[source]?.[0];
@@ -2871,22 +2847,44 @@ async function refreshPrices() {
         renderPricelistSettingsSummary();
         persistLocalPriceSettings();
 
+        // Snapshot prices before refresh for diff
+        const beforePricesMap = {};
+        let beforeTotal = 0;
+        for (const item of cart) {
+            const p = getDisplayPrice(item);
+            beforePricesMap[item.lot_name] = { price: p, qty: item.quantity };
+            beforeTotal += p * item.quantity;
+        }
+        beforeTotal *= serverCount;
+
         await saveConfig(false);
         await refreshPriceLevels({ force: true, noCache: true });
         renderTab();
         updateCartUI();
 
+        // Compute diff after refresh
+        const itemDiffs = [];
+        let afterTotal = 0;
+        for (const item of cart) {
+            const newPrice = getDisplayPrice(item);
+            afterTotal += newPrice * item.quantity;
+            const before = beforePricesMap[item.lot_name];
+            if (before && Math.abs(before.price - newPrice) > 0.01) {
+                itemDiffs.push({ lot_name: item.lot_name, quantity: item.quantity, prevPrice: before.price, newPrice });
+            }
+        }
+        afterTotal *= serverCount;
+
         if (configUUID) {
             const configResp = await fetch('/api/configs/' + configUUID);
             if (configResp.ok) {
                 const config = await configResp.json();
-                if (config.price_updated_at) {
-                    updatePriceUpdateDate(config.price_updated_at);
-                }
+                if (config.price_updated_at) updatePriceUpdateDate(config.price_updated_at);
             }
         }
 
-        showToast(serverSyncSkipped ? 'Цены обновлены (без связи с сервером)' : 'Цены обновлены', 'success');
+        showToast('Цены обновлены', 'success');
+        showPriceDiffModal([{ configName: configName || 'Конфигурация', prevTotal: beforeTotal, newTotal: afterTotal, serverCount, itemDiffs }]);
     } catch(e) {
         showToast('Ошибка обновления цен', 'error');
     } finally {
diff --git a/web/templates/project_detail.html b/web/templates/project_detail.html
index 6cdb86c..6898383 100644
--- a/web/templates/project_detail.html
+++ b/web/templates/project_detail.html
@@ -40,7 +40,7 @@
         <button onclick="openCreateModal()" class="py-2 bg-blue-600 text-white rounded-lg hover:bg-blue-700 font-medium">
             + Конфигурация
         </button>
-        <button id="refresh-all-prices-btn" onclick="refreshAllPrices()" class="py-2 bg-blue-600 text-white rounded-lg hover:bg-blue-700 font-medium">
+        <button id="refresh-all-prices-btn" onclick="refreshPrices()" class="py-2 bg-blue-600 text-white rounded-lg hover:bg-blue-700 font-medium">
             Обновить цены
         </button>
         <button onclick="openVendorImportModal()" class="py-2 bg-amber-600 text-white rounded-lg hover:bg-amber-700 font-medium">
@@ -1572,10 +1572,10 @@ async function exportProject() {
     }
 }
 
-async function refreshAllPrices() {
+async function refreshPrices() {
     const configs = (allConfigs || []).filter(c => c.is_active !== false);
     if (!configs.length) {
-        if (typeof showToast === 'function') showToast('Нет активных конфигураций', 'error');
+        showToast('Нет активных конфигураций', 'error');
         return;
     }
 
@@ -1586,87 +1586,76 @@ async function refreshAllPrices() {
         btn.className = 'py-2 bg-gray-300 text-gray-500 rounded-lg cursor-not-allowed font-medium';
     }
 
-    let serverSyncSkipped = false;
     try {
-        const statusResp = await fetch('/api/sync/status');
-        const statusData = statusResp.ok ? await statusResp.json() : null;
-        if (statusData && statusData.is_online) {
-            const componentSyncResp = await fetch('/api/sync/components', { method: 'POST' });
-            if (!componentSyncResp.ok) throw new Error('component sync failed');
-            const pricelistSyncResp = await fetch('/api/sync/pricelists', { method: 'POST' });
-            if (!pricelistSyncResp.ok) throw new Error('pricelist sync failed');
-        } else {
-            serverSyncSkipped = true;
-        }
-    } catch (syncErr) {
-        if (syncErr.message === 'component sync failed' || syncErr.message === 'pricelist sync failed') {
-            if (btn) {
-                btn.disabled = false;
-                btn.textContent = 'Обновить цены';
-                btn.className = 'py-2 bg-blue-600 text-white rounded-lg hover:bg-blue-700 font-medium';
-            }
-            if (typeof showToast === 'function') showToast('Ошибка синхронизации прайс-листов', 'error');
-            return;
-        }
-        serverSyncSkipped = true;
-    }
+        const latestEstimatePricelistId = await fetchLatestEstimatePricelistId();
 
-    // Resolve latest estimate pricelist ID to pass explicitly, so each config
-    // is updated to the newest pricelist rather than the one stored in the config.
-    let latestEstimatePricelistId = null;
-    try {
-        const plResp = await fetch('/api/pricelists?active_only=true&source=estimate&per_page=1');
-        if (plResp.ok) {
-            const plData = await plResp.json();
-            const list = plData.pricelists || plData.items || plData;
-            if (Array.isArray(list) && list.length > 0 && list[0].id) {
-                latestEstimatePricelistId = Number(list[0].id);
+        const diffResults = [];
+        for (const cfg of configs) {
+            if (cfg.disable_price_refresh) {
+                diffResults.push({ configName: cfg.name, skipped: true });
+                continue;
             }
-        }
-    } catch (_) {}
 
-    let failed = 0;
-    let newTotalSum = 0;
-    for (const cfg of configs) {
-        try {
-            const body = latestEstimatePricelistId ? JSON.stringify({ pricelist_id: latestEstimatePricelistId }) : undefined;
-            const resp = await fetch('/api/configs/' + cfg.uuid + '/refresh-prices', {
-                method: 'POST',
-                headers: body ? { 'Content-Type': 'application/json' } : {},
-                body,
-            });
-            if (!resp.ok) { failed++; continue; }
-            const updated = await resp.json();
-            if (updated && updated.total_price != null) {
-                cfg.total_price = updated.total_price;
-                const totalCell = document.querySelector('[data-total-uuid="' + cfg.uuid + '"]');
-                if (totalCell) totalCell.textContent = formatMoneyNoDecimals(updated.total_price);
-                const serverCount = cfg.server_count || 1;
-                const unitPrice = serverCount > 0 ? (updated.total_price / serverCount) : 0;
-                const row = totalCell && totalCell.closest('tr');
-                if (row) {
-                    const cells = row.querySelectorAll('td');
-                    if (cells[4]) cells[4].textContent = formatMoneyNoDecimals(unitPrice);
+            const prevTotal = cfg.total_price || 0;
+            const prevItemsMap = {};
+            if (cfg.items) {
+                for (const item of cfg.items) prevItemsMap[item.lot_name] = item.unit_price;
+            }
+
+            try {
+                const body = latestEstimatePricelistId ? JSON.stringify({ pricelist_id: latestEstimatePricelistId }) : undefined;
+                const resp = await fetch('/api/configs/' + cfg.uuid + '/refresh-prices', {
+                    method: 'POST',
+                    headers: body ? { 'Content-Type': 'application/json' } : {},
+                    body,
+                });
+                if (!resp.ok) {
+                    diffResults.push({ configName: cfg.name, error: true });
+                    continue;
                 }
+                const updated = await resp.json();
+
+                cfg.total_price = updated.total_price ?? cfg.total_price;
+                if (updated.items) cfg.items = updated.items;
+
+                const totalCell = document.querySelector('[data-total-uuid="' + cfg.uuid + '"]');
+                if (totalCell && updated.total_price != null) {
+                    totalCell.textContent = formatMoneyNoDecimals(updated.total_price);
+                    const sc = cfg.server_count || 1;
+                    const row = totalCell.closest('tr');
+                    if (row) {
+                        const cells = row.querySelectorAll('td');
+                        if (cells[4]) cells[4].textContent = formatMoneyNoDecimals(sc > 0 ? updated.total_price / sc : 0);
+                    }
+                }
+
+                const itemDiffs = [];
+                if (updated.items) {
+                    for (const item of updated.items) {
+                        const prevPrice = prevItemsMap[item.lot_name];
+                        if (prevPrice !== undefined && Math.abs(prevPrice - item.unit_price) > 0.01) {
+                            itemDiffs.push({ lot_name: item.lot_name, quantity: item.quantity, prevPrice, newPrice: item.unit_price });
+                        }
+                    }
+                }
+
+                diffResults.push({ configName: cfg.name, prevTotal, newTotal: updated.total_price || 0, serverCount: cfg.server_count || 1, itemDiffs });
+            } catch(_) {
+                diffResults.push({ configName: cfg.name, error: true });
             }
-            newTotalSum += cfg.total_price || 0;
-        } catch { failed++; }
-    }
+        }
 
-    const footerTotal = document.querySelector('[data-footer-total="1"]');
-    if (footerTotal) footerTotal.textContent = formatMoneyNoDecimals(newTotalSum);
-
-    if (btn) {
-        btn.disabled = false;
-        btn.textContent = 'Обновить цены';
-        btn.className = 'py-2 bg-blue-600 text-white rounded-lg hover:bg-blue-700 font-medium';
-    }
-
-    if (failed > 0) {
-        if (typeof showToast === 'function') showToast('Часть конфигураций не обновилась (' + failed + ')', 'error');
-    } else {
-        const msg = serverSyncSkipped ? 'Цены обновлены (без связи с сервером)' : 'Цены обновлены';
-        if (typeof showToast === 'function') showToast(msg, 'success');
+        updateFooterTotal();
+        showToast('Цены обновлены', 'success');
+        showPriceDiffModal(diffResults);
+    } catch(e) {
+        showToast('Ошибка обновления цен', 'error');
+    } finally {
+        if (btn) {
+            btn.disabled = false;
+            btn.textContent = 'Обновить цены';
+            btn.className = 'py-2 bg-blue-600 text-white rounded-lg hover:bg-blue-700 font-medium';
+        }
     }
 }