diff --git a/src/config/defaultKhanegiUiConfig.ts b/src/config/defaultKhanegiUiConfig.ts
index b9c621d..0633e09 100644
--- a/src/config/defaultKhanegiUiConfig.ts
+++ b/src/config/defaultKhanegiUiConfig.ts
@@ -116,4 +116,30 @@ export function createDefaultKhanegiUiConfig() {
   }
 }
 
-export type UiConfig = ReturnType<typeof createDefaultKhanegiUiConfig>
+export type UiConfigBase = ReturnType<typeof createDefaultKhanegiUiConfig>
+
+export type UiConfig = UiConfigBase & {
+  /** Immutable factory look — set once; never overwrite on normal save */
+  defaultSnapshot?: {
+    app: UiConfigBase['app']
+    pages: Record<string, unknown>
+  }
+}
+
+export function cloneKhanegiAppSnapshot(config: {
+  app: UiConfigBase['app']
+  pages?: Record<string, unknown>
+}) {
+  return {
+    app: JSON.parse(JSON.stringify(config.app)) as UiConfigBase['app'],
+    pages: JSON.parse(JSON.stringify(config.pages || {})) as Record<string, unknown>,
+  }
+}
+
+/** Strip SuperAdmin-only meta before sending to product apps via /get_user */
+export function stripKhanegiSaMeta<T extends Record<string, unknown> | null | undefined>(ui: T): T {
+  if (!ui || typeof ui !== 'object') return ui
+  const { defaultSnapshot: _snap, _backfill, ...rest } = ui as Record<string, unknown>
+  return rest as T
+}
+
diff --git a/src/pages/UiConfigPage.vue b/src/pages/UiConfigPage.vue
index 9246275..6aa052c 100644
--- a/src/pages/UiConfigPage.vue
+++ b/src/pages/UiConfigPage.vue
@@ -1,10 +1,13 @@
 <script setup lang="ts">
 import { computed, onMounted, reactive, ref, watch } from 'vue'
 import { useRoute, useRouter } from 'vue-router'
-import { message } from 'ant-design-vue'
+import { message, Modal } from 'ant-design-vue'
 import { ArrowRightOutlined } from '@ant-design/icons-vue'
 import api from '@/api/http'
-import { createDefaultKhanegiUiConfig } from '@/config/defaultKhanegiUiConfig'
+import {
+  cloneKhanegiAppSnapshot,
+  createDefaultKhanegiUiConfig,
+} from '@/config/defaultKhanegiUiConfig'
 import {
   applyKhanegiPreset,
   khanegiThemePresets,
@@ -19,6 +22,7 @@ const route = useRoute()
 const router = useRouter()
 const loading = ref(true)
 const saving = ref(false)
+const resetting = ref(false)
 const tenantName = ref('')
 const product = ref<'hamkar' | 'khanegi'>('khanegi')
 const activeTab = ref('theme')
@@ -27,8 +31,13 @@ const jsonError = ref('')
 const selectedPreset = ref<KhanegiPresetId>('navy-gold')
 const previewMode = ref<'dark' | 'light'>('dark')
 
-const config = reactive(createDefaultKhanegiUiConfig())
+const config = reactive(createDefaultKhanegiUiConfig()) as ReturnType<
+  typeof createDefaultKhanegiUiConfig
+> & {
+  defaultSnapshot?: ReturnType<typeof cloneKhanegiAppSnapshot>
+}
 
+const hasDefaultSnapshot = computed(() => Boolean(config.defaultSnapshot))
 const isCustom = computed(() => selectedPreset.value === 'custom')
 
 const activePreviewColors = computed(() => {
@@ -91,7 +100,13 @@ function syncAdvancedJson() {
 function applyAdvancedJson() {
   try {
     const parsed = JSON.parse(advancedJson.value)
+    const keepSnapshot = config.defaultSnapshot
+      ? JSON.parse(JSON.stringify(config.defaultSnapshot))
+      : undefined
     Object.assign(config, createDefaultKhanegiUiConfig(), parsed)
+    if (keepSnapshot && !config.defaultSnapshot) {
+      config.defaultSnapshot = keepSnapshot
+    }
     ensureSchemes()
     selectedPreset.value = resolvePresetId(config)
     jsonError.value = ''
@@ -128,6 +143,7 @@ async function load() {
       router.replace({ name: 'version-edit', params: { id: String(route.params.id) } })
       return
     }
+    const hadSnapshot = Boolean(data.appUiConfig?.defaultSnapshot)
     if (data.appUiConfig && typeof data.appUiConfig === 'object') {
       Object.assign(config, createDefaultKhanegiUiConfig(), data.appUiConfig)
       if (!config.app?.theme?.colors) {
@@ -135,9 +151,17 @@ async function load() {
       }
     }
     ensureSchemes()
+    if (!config.defaultSnapshot) {
+      config.defaultSnapshot = cloneKhanegiAppSnapshot(config)
+    }
     selectedPreset.value = resolvePresetId(config)
     previewMode.value = config.app.theme.mode === 'light' ? 'light' : 'dark'
     syncAdvancedJson()
+
+    // Persist newly inferred factory snapshot once
+    if (!hadSnapshot && config.defaultSnapshot) {
+      await persistConfig()
+    }
   } catch (e: any) {
     message.error(e?.response?.data?.message || 'خطا در بارگذاری')
   } finally {
@@ -145,24 +169,41 @@ async function load() {
   }
 }
 
+function buildSavePayload() {
+  ensureSchemes()
+  config.app.theme.presetId = selectedPreset.value
+  syncActiveColorsFromMode(config)
+  if (selectedPreset.value === 'custom') {
+    markCustomAndSyncSchemes(config)
+  }
+  const payload = JSON.parse(JSON.stringify(config)) as typeof config
+  // Never drop or rewrite an existing factory snapshot on normal save
+  if (config.defaultSnapshot) {
+    payload.defaultSnapshot = JSON.parse(JSON.stringify(config.defaultSnapshot))
+  }
+  return payload
+}
+
+async function persistConfig() {
+  const payload = buildSavePayload()
+  const colors = payload.app.theme.colors
+  await api.patch(`/tenants/${route.params.id}`, {
+    appUiConfig: payload,
+    primaryColor: colors.primary,
+    secondaryColor: colors.secondary,
+    backgroundColor: colors.background,
+  })
+  Object.assign(config, createDefaultKhanegiUiConfig(), payload)
+  ensureSchemes()
+  selectedPreset.value = resolvePresetId(config)
+  syncAdvancedJson()
+}
+
 async function save() {
   saving.value = true
   try {
-    ensureSchemes()
-    config.app.theme.presetId = selectedPreset.value
-    syncActiveColorsFromMode(config)
-    if (selectedPreset.value === 'custom') {
-      markCustomAndSyncSchemes(config)
-    }
-    const colors = config.app.theme.colors
-    await api.patch(`/tenants/${route.params.id}`, {
-      appUiConfig: JSON.parse(JSON.stringify(config)),
-      primaryColor: colors.primary,
-      secondaryColor: colors.secondary,
-      backgroundColor: colors.background,
-    })
+    await persistConfig()
     message.success('ظاهر اپ ذخیره شد')
-    syncAdvancedJson()
   } catch (e: any) {
     const msg = e?.response?.data?.message
     message.error(Array.isArray(msg) ? msg.join('، ') : msg || 'ذخیره ناموفق')
@@ -171,6 +212,39 @@ async function save() {
   }
 }
 
+function resetToDefault() {
+  if (!config.defaultSnapshot) {
+    message.warning('ظاهر پیش‌فرض برای این نسخه ثبت نشده است')
+    return
+  }
+  Modal.confirm({
+    title: 'بازگشت به ظاهر اولیه؟',
+    content: 'تم، منو و هدر به ظاهر کارخانهٔ همین نسخه برمی‌گردد و ذخیره می‌شود.',
+    okText: 'بازگشت به پیش‌فرض',
+    cancelText: 'انصراف',
+    okButtonProps: { danger: true },
+    async onOk() {
+      resetting.value = true
+      try {
+        const snap = config.defaultSnapshot!
+        config.app = JSON.parse(JSON.stringify(snap.app))
+        config.pages = JSON.parse(JSON.stringify(snap.pages || {}))
+        ensureSchemes()
+        selectedPreset.value = resolvePresetId(config)
+        previewMode.value = config.app.theme.mode === 'light' ? 'light' : 'dark'
+        await persistConfig()
+        message.success('ظاهر اولیه بازیابی شد')
+      } catch (e: any) {
+        const msg = e?.response?.data?.message
+        message.error(Array.isArray(msg) ? msg.join('، ') : msg || 'بازیابی ناموفق')
+        throw e
+      } finally {
+        resetting.value = false
+      }
+    },
+  })
+}
+
 watch(
   () => config.app.theme.mode,
   () => {
@@ -407,6 +481,15 @@ onMounted(load)
     </a-tabs>
 
     <div class="sticky-actions">
+      <a-button
+        size="large"
+        block
+        :loading="resetting"
+        :disabled="!hasDefaultSnapshot"
+        @click="resetToDefault"
+      >
+        بازگشت به ظاهر اولیه
+      </a-button>
       <a-button type="primary" size="large" block :loading="saving" @click="save">ذخیره ظاهر</a-button>
     </div>
   </div>
@@ -608,4 +691,10 @@ onMounted(load)
   font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace !important;
   font-size: 12px;
 }
+
+.sticky-actions {
+  display: grid;
+  gap: 8px;
+  margin-top: 16px;
+}
 </style>