diff --git a/apps/api/src/lead-forms/lead-forms.controller.ts b/apps/api/src/lead-forms/lead-forms.controller.ts
index 3572922..ca27233 100644
--- a/apps/api/src/lead-forms/lead-forms.controller.ts
+++ b/apps/api/src/lead-forms/lead-forms.controller.ts
@@ -106,7 +106,7 @@ export class LeadFormsController {
     const form = await this.leadFormsService.get(user.organizationId, id);
     const row = await this.leadFormsService.getByToken(form.publicToken);
     if (!row?.coverStorageKey) return { ok: false };
-    res.set({ 'Content-Type': 'image/jpeg' });
+    res.set({ 'Content-Type': this.leadFormsService.coverContentType(row.coverStorageKey) });
     return new StreamableFile(this.files.openReadStream(row.coverStorageKey));
   }
 
diff --git a/apps/api/src/lead-forms/lead-forms.service.ts b/apps/api/src/lead-forms/lead-forms.service.ts
index f68c2d1..16dc598 100644
--- a/apps/api/src/lead-forms/lead-forms.service.ts
+++ b/apps/api/src/lead-forms/lead-forms.service.ts
@@ -25,6 +25,13 @@ import {
 } from '../contacts/normalize';
 import { LeadStagesService } from '../leads/lead-stages.service';
 
+const COVER_CONTENT_TYPES: Record<string, string> = {
+  jpg: 'image/jpeg',
+  jpeg: 'image/jpeg',
+  png: 'image/png',
+  webp: 'image/webp',
+};
+
 const DEFAULT_FIELDS: LeadFormFieldInput[] = [
   {
     key: 'fullName',
@@ -222,7 +229,7 @@ export class LeadFormsService {
       submitColor: row.submitColor || '#14b8a6',
       hasCover: Boolean(row.coverStorageKey),
       coverPath: row.coverStorageKey
-        ? `/api/public/forms/${row.publicToken}/cover`
+        ? `/api/public/forms/${row.publicToken}/cover?v=${row.updatedAt.getTime()}`
         : null,
       fields: row.fields.map((f) => ({
         key: f.key,
@@ -806,7 +813,10 @@ export class LeadFormsService {
       .toLowerCase()
       .replace(/[^a-z0-9]/g, '')
       .slice(0, 6);
-    const key = `lead-forms/${id}/cover.${ext || 'jpg'}`;
+    if (!COVER_CONTENT_TYPES[ext]) {
+      throw new BadRequestException('فرمت تصویر کاور باید PNG، JPG یا WEBP باشد');
+    }
+    const key = `lead-forms/${id}/cover.${ext}`;
     await this.files.save(key, file.buffer);
     if (row.coverStorageKey && row.coverStorageKey !== key) {
       await this.files.remove(row.coverStorageKey);
@@ -832,6 +842,11 @@ export class LeadFormsService {
     return row.coverStorageKey;
   }
 
+  coverContentType(key: string) {
+    const ext = key.split('.').pop()?.toLowerCase() ?? '';
+    return COVER_CONTENT_TYPES[ext] ?? 'image/jpeg';
+  }
+
   async getByToken(token: string, onlyActive = false) {
     return this.prisma.leadForm.findFirst({
       where: { publicToken: token, ...(onlyActive ? { isActive: true } : {}) },
diff --git a/apps/api/src/lead-forms/public-lead-forms.controller.ts b/apps/api/src/lead-forms/public-lead-forms.controller.ts
index dd9aa42..157ec0d 100644
--- a/apps/api/src/lead-forms/public-lead-forms.controller.ts
+++ b/apps/api/src/lead-forms/public-lead-forms.controller.ts
@@ -33,7 +33,10 @@ export class PublicLeadFormsController {
   ) {
     const row = await this.leadFormsService.getByToken(token);
     if (!row?.coverStorageKey) throw new NotFoundException('کاور پیدا نشد');
-    res.set({ 'Content-Type': 'image/jpeg', 'Cache-Control': 'public, max-age=3600' });
+    res.set({
+      'Content-Type': this.leadFormsService.coverContentType(row.coverStorageKey),
+      'Cache-Control': 'public, max-age=3600',
+    });
     return new StreamableFile(this.files.openReadStream(row.coverStorageKey));
   }
 
diff --git a/apps/web/src/components/MessageIntervalPicker.vue b/apps/web/src/components/MessageIntervalPicker.vue
index aa3a6e8..a5e9001 100644
--- a/apps/web/src/components/MessageIntervalPicker.vue
+++ b/apps/web/src/components/MessageIntervalPicker.vue
@@ -1,5 +1,6 @@
 <script setup lang="ts">
-import { computed, onMounted, onUnmounted, ref, watch } from 'vue';
+import { computed, onUnmounted, ref, watch } from 'vue';
+import { useEscClose } from '@/lib/modal-stack';
 import type { MessageAutomationDelayUnit } from '@mento/shared';
 import { toFaDigits } from '@/lib/jalali';
 import UiIcon from '@/components/UiIcon.vue';
@@ -92,17 +93,13 @@ function pickImmediate() {
   open.value = false;
 }
 
-function onKey(event: KeyboardEvent) {
-  if (event.key === 'Escape') open.value = false;
-}
+useEscClose(() => open.value, () => { open.value = false; });
 
 watch(open, (isOpen) => {
   document.body.style.overflow = isOpen ? 'hidden' : '';
 });
 
-onMounted(() => window.addEventListener('keydown', onKey));
 onUnmounted(() => {
-  window.removeEventListener('keydown', onKey);
   document.body.style.overflow = '';
 });
 </script>
@@ -116,7 +113,7 @@ onUnmounted(() => {
 
     <Teleport to="body">
       <div v-if="open" class="layer">
-        <button class="dim" type="button" aria-label="بستن" @click="open = false" />
+        <div class="dim" aria-hidden="true" />
         <section class="sheet" role="dialog" aria-modal="true" aria-label="انتخاب فاصله زمانی">
           <header>
             <div>
diff --git a/apps/web/src/components/SavedFiltersBar.vue b/apps/web/src/components/SavedFiltersBar.vue
index 0c1ab85..daa77ca 100644
--- a/apps/web/src/components/SavedFiltersBar.vue
+++ b/apps/web/src/components/SavedFiltersBar.vue
@@ -2,6 +2,7 @@
 import { computed, onMounted, ref, watch } from 'vue';
 import { api } from '@/lib/api';
 import UiIcon from '@/components/UiIcon.vue';
+import { useEscClose } from '@/lib/modal-stack';
 import type { SavedViewDto, SavedViewScope } from '@mento/shared';
 
 const props = defineProps<{
@@ -22,6 +23,7 @@ const error = ref('');
 const saveOpen = ref(false);
 const saveName = ref('');
 const saveShared = ref(false);
+useEscClose(() => saveOpen.value, () => { saveOpen.value = false; });
 
 const activeView = computed(
   () => views.value.find((v) => v.id === activeId.value) ?? null,
@@ -151,9 +153,14 @@ onMounted(() => {
     <p v-if="error" class="err">{{ error }}</p>
 
     <div v-if="saveOpen" class="sheet">
-      <div class="sheet-backdrop" @click="saveOpen = false" />
-      <div class="sheet-panel">
-        <h3>{{ activeId ? 'به‌روزرسانی فیلتر' : 'ذخیره فیلتر' }}</h3>
+      <div class="sheet-backdrop" aria-hidden="true" />
+      <div class="sheet-panel" role="dialog" aria-modal="true">
+        <header class="sheet-head">
+          <h3>{{ activeId ? 'به‌روزرسانی فیلتر' : 'ذخیره فیلتر' }}</h3>
+          <button type="button" class="x-btn" aria-label="بستن (Esc)" title="بستن (Esc)" @click="saveOpen = false">
+            <UiIcon name="x" :size="16" />
+          </button>
+        </header>
         <label>
           نام
           <input v-model="saveName" type="text" maxlength="120" placeholder="مثلاً سرنخ‌های این هفته" />
@@ -253,6 +260,9 @@ input[type='text'] {
   margin: 0;
   font-size: 1rem;
 }
+.sheet-head { display: flex; align-items: center; justify-content: space-between; gap: 0.5rem; }
+.x-btn { width: 32px; height: 32px; border: 1px solid #e2e8f0; border-radius: 8px; background: #fff; color: #64748b; display: grid; place-items: center; cursor: pointer; }
+.x-btn:hover { background: #f8fafc; color: #0f172a; }
 .sheet-panel label {
   display: grid;
   gap: 0.3rem;
diff --git a/apps/web/src/components/activities/ActivityCommentSheet.vue b/apps/web/src/components/activities/ActivityCommentSheet.vue
index 1299d1a..050a4f7 100644
--- a/apps/web/src/components/activities/ActivityCommentSheet.vue
+++ b/apps/web/src/components/activities/ActivityCommentSheet.vue
@@ -149,7 +149,7 @@ onBeforeUnmount(() => {
 <template>
   <Teleport to="body">
     <div class="layer" role="presentation">
-      <button class="backdrop" type="button" aria-label="بستن" @click="close" />
+      <div class="backdrop" aria-hidden="true" />
       <section
         class="sheet"
         role="dialog"
diff --git a/apps/web/src/components/activities/ActivityPostponeSheet.vue b/apps/web/src/components/activities/ActivityPostponeSheet.vue
index bb0d8a0..00821da 100644
--- a/apps/web/src/components/activities/ActivityPostponeSheet.vue
+++ b/apps/web/src/components/activities/ActivityPostponeSheet.vue
@@ -156,7 +156,7 @@ onBeforeUnmount(() => {
 <template>
   <Teleport to="body">
     <div class="layer" role="presentation">
-      <button class="backdrop" type="button" aria-label="بستن" @click="close" />
+      <div class="backdrop" aria-hidden="true" />
       <section class="sheet" role="dialog" aria-modal="true" aria-labelledby="postpone-title">
         <div class="handle" aria-hidden="true" />
 
diff --git a/apps/web/src/components/ui/UiDrawer.vue b/apps/web/src/components/ui/UiDrawer.vue
index 50f4249..7d63935 100644
--- a/apps/web/src/components/ui/UiDrawer.vue
+++ b/apps/web/src/components/ui/UiDrawer.vue
@@ -1,6 +1,6 @@
 <script setup lang="ts">
-import { onUnmounted, watch } from 'vue';
 import UiIcon from '@/components/UiIcon.vue';
+import { useEscClose } from '@/lib/modal-stack';
 
 const props = withDefaults(
   defineProps<{
@@ -13,33 +13,20 @@ const props = withDefaults(
 
 const emit = defineEmits<{ close: [] }>();
 
-function onKey(e: KeyboardEvent) {
-  if (e.key === 'Escape') emit('close');
-}
-
-watch(
-  () => props.open,
-  (open) => {
-    if (open) window.addEventListener('keydown', onKey);
-    else window.removeEventListener('keydown', onKey);
-  },
-  { immediate: true },
-);
-
-onUnmounted(() => window.removeEventListener('keydown', onKey));
+useEscClose(() => props.open, () => emit('close'));
 </script>
 
 <template>
   <Teleport to="body">
     <Transition name="ui-drawer">
       <div v-if="open" class="ui-drawer-layer">
-        <button class="ui-drawer-dim" type="button" aria-label="بستن" @click="emit('close')" />
+        <div class="ui-drawer-dim" aria-hidden="true" />
         <aside class="ui-drawer" role="dialog" aria-modal="true" :aria-label="title" :style="{ '--drawer-w': width }">
           <header class="ui-drawer-head">
             <slot name="header">
               <h2>{{ title }}</h2>
             </slot>
-            <button type="button" class="ui-drawer-close" aria-label="بستن" @click="emit('close')">
+            <button type="button" class="ui-drawer-close" aria-label="بستن (Esc)" title="بستن (Esc)" @click="emit('close')">
               <UiIcon name="x" :size="18" />
             </button>
           </header>
diff --git a/apps/web/src/components/ui/UiModal.vue b/apps/web/src/components/ui/UiModal.vue
index cd9fc9a..e4ccb36 100644
--- a/apps/web/src/components/ui/UiModal.vue
+++ b/apps/web/src/components/ui/UiModal.vue
@@ -5,6 +5,7 @@ let openModalCount = 0;
 <script setup lang="ts">
 import { onUnmounted, watch } from 'vue';
 import UiIcon from '@/components/UiIcon.vue';
+import { useEscClose } from '@/lib/modal-stack';
 
 const props = withDefaults(
   defineProps<{
@@ -12,15 +13,9 @@ const props = withDefaults(
     title: string;
     /** برای مودال روی مودال (مثل انتخاب مخاطب داخل فرم) */
     nest?: boolean;
-    /**
-     * بستن با کلیک روی پس‌زمینه.
-     * پیش‌فرض: فقط موبایل (تمام‌صفحه). در دسکتاپ عمداً بسته نمی‌شود.
-     */
-    closeOnBackdrop?: boolean | 'mobile';
   }>(),
   {
     nest: false,
-    closeOnBackdrop: 'mobile',
   },
 );
 
@@ -28,6 +23,8 @@ const emit = defineEmits<{
   close: [];
 }>();
 
+useEscClose(() => props.open, () => emit('close'));
+
 let locked = false;
 
 function setLock(next: boolean) {
@@ -44,34 +41,20 @@ watch(
 );
 
 onUnmounted(() => setLock(false));
-
-function isMobileViewport() {
-  return typeof window !== 'undefined' && window.matchMedia('(max-width: 900px)').matches;
-}
-
-function onBackdrop(event: MouseEvent) {
-  if (event.target !== event.currentTarget) return;
-  const mode = props.closeOnBackdrop;
-  if (mode === false) return;
-  if (mode === true || (mode === 'mobile' && isMobileViewport())) {
-    emit('close');
-  }
-}
 </script>
 
 <template>
   <Teleport to="body">
-    <div v-if="open" class="backdrop" :class="{ nest }" @click="onBackdrop">
+    <div v-if="open" class="backdrop" :class="{ nest }">
       <section
         class="dialog"
         role="dialog"
         aria-modal="true"
         :aria-label="title"
-        @click.stop
       >
         <header class="head">
           <h2>{{ title }}</h2>
-          <button type="button" class="close" aria-label="بستن" @click="emit('close')">
+          <button type="button" class="close" aria-label="بستن (Esc)" title="بستن (Esc)" @click="emit('close')">
             <UiIcon name="x" :size="18" />
           </button>
         </header>
diff --git a/apps/web/src/lib/form-cover.ts b/apps/web/src/lib/form-cover.ts
new file mode 100644
index 0000000..80f2816
--- /dev/null
+++ b/apps/web/src/lib/form-cover.ts
@@ -0,0 +1,72 @@
+/** اندازهٔ استاندارد کاور فرم (نسبت ۳:۱) */
+export const COVER_WIDTH = 1200;
+export const COVER_HEIGHT = 400;
+const MAX_INPUT_BYTES = 15_000_000;
+/** تصاویر عریض‌تر از این نسبت بنر حساب می‌شوند و برش می‌خورند؛ بقیه لوگو هستند و کامل جا می‌گیرند */
+const BANNER_MIN_RATIO = 2;
+
+function loadImage(file: File): Promise<HTMLImageElement> {
+  return new Promise((resolve, reject) => {
+    const url = URL.createObjectURL(file);
+    const img = new Image();
+    img.onload = () => {
+      URL.revokeObjectURL(url);
+      resolve(img);
+    };
+    img.onerror = () => {
+      URL.revokeObjectURL(url);
+      reject(new Error('تصویر قابل خواندن نیست.'));
+    };
+    img.src = url;
+  });
+}
+
+function toBlob(canvas: HTMLCanvasElement, type: string, quality?: number): Promise<Blob> {
+  return new Promise((resolve, reject) => {
+    canvas.toBlob((b) => (b ? resolve(b) : reject(new Error('پردازش تصویر ناموفق بود.'))), type, quality);
+  });
+}
+
+/**
+ * تصویر را به کاور ۱۲۰۰×۴۰۰ تبدیل می‌کند:
+ * بنرهای عریض از وسط برش می‌خورند (JPEG)،
+ * لوگوها و تصاویر مربعی/عمودی بدون برش وسط کادر با پس‌زمینهٔ شفاف قرار می‌گیرند (PNG) تا رنگ فرم پشتشان دیده شود.
+ */
+export async function prepareFormCover(file: File): Promise<File> {
+  if (!file.type.startsWith('image/')) throw new Error('فقط فایل تصویری (PNG، JPG، WEBP، SVG) مجاز است.');
+  if (file.size > MAX_INPUT_BYTES) throw new Error('حجم تصویر بیش از ۱۵ مگابایت است.');
+
+  const img = await loadImage(file);
+  const w = img.naturalWidth || img.width;
+  const h = img.naturalHeight || img.height;
+  if (!w || !h) throw new Error('ابعاد تصویر نامعتبر است.');
+
+  const canvas = document.createElement('canvas');
+  canvas.width = COVER_WIDTH;
+  canvas.height = COVER_HEIGHT;
+  const ctx = canvas.getContext('2d');
+  if (!ctx) throw new Error('مرورگر از پردازش تصویر پشتیبانی نمی‌کند.');
+  ctx.imageSmoothingEnabled = true;
+  ctx.imageSmoothingQuality = 'high';
+
+  const ratio = w / h;
+  if (ratio >= BANNER_MIN_RATIO) {
+    const target = COVER_WIDTH / COVER_HEIGHT;
+    let sw = w;
+    let sh = h;
+    if (ratio > target) sw = h * target;
+    else sh = w / target;
+    ctx.drawImage(img, (w - sw) / 2, (h - sh) / 2, sw, sh, 0, 0, COVER_WIDTH, COVER_HEIGHT);
+    const blob = await toBlob(canvas, 'image/jpeg', 0.88);
+    return new File([blob], 'cover.jpg', { type: 'image/jpeg' });
+  }
+
+  const boxW = COVER_WIDTH * 0.6;
+  const boxH = COVER_HEIGHT * 0.7;
+  const scale = Math.min(boxW / w, boxH / h, 3);
+  const dw = w * scale;
+  const dh = h * scale;
+  ctx.drawImage(img, (COVER_WIDTH - dw) / 2, (COVER_HEIGHT - dh) / 2, dw, dh);
+  const blob = await toBlob(canvas, 'image/png');
+  return new File([blob], 'cover.png', { type: 'image/png' });
+}
diff --git a/apps/web/src/lib/modal-stack.ts b/apps/web/src/lib/modal-stack.ts
new file mode 100644
index 0000000..87eb1c6
--- /dev/null
+++ b/apps/web/src/lib/modal-stack.ts
@@ -0,0 +1,49 @@
+import { onUnmounted, watch, type WatchSource } from 'vue';
+
+type Entry = { id: number; close: () => void };
+
+const stack: Entry[] = [];
+let seq = 0;
+let listening = false;
+
+function onKeydown(e: KeyboardEvent) {
+  if (e.key !== 'Escape' || !stack.length || e.isComposing) return;
+  e.preventDefault();
+  e.stopPropagation();
+  stack[stack.length - 1]!.close();
+}
+
+function sync() {
+  if (stack.length && !listening) {
+    window.addEventListener('keydown', onKeydown, true);
+    listening = true;
+  } else if (!stack.length && listening) {
+    window.removeEventListener('keydown', onKeydown, true);
+    listening = false;
+  }
+}
+
+/**
+ * مودال/شیت را در پشتهٔ Esc ثبت می‌کند؛ Esc فقط بالاترین مودال باز را می‌بندد.
+ * بستن با کلیک بیرون عمداً پشتیبانی نمی‌شود تا داده‌های فرم از دست نرود.
+ */
+export function useEscClose(open: WatchSource<unknown>, close: () => void) {
+  const id = ++seq;
+  const remove = () => {
+    const i = stack.findIndex((e) => e.id === id);
+    if (i >= 0) stack.splice(i, 1);
+    sync();
+  };
+  watch(
+    open,
+    (isOpen) => {
+      remove();
+      if (isOpen) {
+        stack.push({ id, close });
+        sync();
+      }
+    },
+    { immediate: true },
+  );
+  onUnmounted(remove);
+}
diff --git a/apps/web/src/views/ConversationsView.vue b/apps/web/src/views/ConversationsView.vue
index d63931c..6f2f901 100644
--- a/apps/web/src/views/ConversationsView.vue
+++ b/apps/web/src/views/ConversationsView.vue
@@ -1,5 +1,6 @@
 <script setup lang="ts">
 import { computed, nextTick, onMounted, onUnmounted, ref, watch } from 'vue';
+import { useEscClose } from '@/lib/modal-stack';
 import { matchesSearch } from '@/lib/search';
 import { useRouter } from 'vue-router';
 import axios from 'axios';
@@ -1638,12 +1639,15 @@ function toggleChannelMember(id: string) {
   }
 }
 
-/** در دسکتاپ با کلیک بیرون مودال بسته نشود (انتخاب اعضا قطع نشود) */
-function closeModalOnBackdrop(close: () => void) {
-  if (typeof window !== 'undefined' && window.matchMedia('(max-width: 900px)').matches) {
-    close();
-  }
-}
+useEscClose(() => showNewDm.value, () => { showNewDm.value = false; });
+useEscClose(() => showNewGroup.value, () => { showNewGroup.value = false; });
+useEscClose(() => showNewChannel.value, () => { showNewChannel.value = false; });
+useEscClose(() => activityFromMsg.value, () => closeActivityFromMsg());
+useEscClose(() => showCrmLink.value, () => { showCrmLink.value = false; });
+useEscClose(() => showAiAssist.value, () => { showAiAssist.value = false; });
+useEscClose(() => showMembers.value, () => { showMembers.value = false; });
+useEscClose(() => showForward.value, () => { showForward.value = false; });
+useEscClose(() => lightboxUrl.value, () => { lightboxUrl.value = ''; });
 
 function openNewDm() {
   peerPickerQuery.value = '';
@@ -2507,9 +2511,11 @@ onUnmounted(() => {
       v-if="showNewDm"
       class="modal"
       open
-      @click.self="closeModalOnBackdrop(() => (showNewDm = false))"
     >
       <div class="modal-card wide">
+        <button type="button" class="modal-x" aria-label="???? (Esc)" title="???? (Esc)" @click="(() => (showNewDm = false))()">
+          <UiIcon name="x" :size="18" />
+        </button>
         <h3>گفتگوی جدید</h3>
         <p class="hint">همکار موردنظر را انتخاب کنید</p>
         <label class="peer-search">
@@ -2552,9 +2558,11 @@ onUnmounted(() => {
       v-if="showNewGroup"
       class="modal"
       open
-      @click.self="closeModalOnBackdrop(() => (showNewGroup = false))"
     >
       <div class="modal-card wide member-picker-modal">
+        <button type="button" class="modal-x" aria-label="???? (Esc)" title="???? (Esc)" @click="(() => (showNewGroup = false))()">
+          <UiIcon name="x" :size="18" />
+        </button>
         <h3>گروه جدید</h3>
         <input v-model="groupName" type="text" placeholder="نام گروه" />
         <div class="picker-head">
@@ -2624,9 +2632,11 @@ onUnmounted(() => {
       v-if="showNewChannel"
       class="modal"
       open
-      @click.self="closeModalOnBackdrop(() => (showNewChannel = false))"
     >
       <div class="modal-card wide member-picker-modal">
+        <button type="button" class="modal-x" aria-label="???? (Esc)" title="???? (Esc)" @click="(() => (showNewChannel = false))()">
+          <UiIcon name="x" :size="18" />
+        </button>
         <h3>کانال جدید</h3>
         <p class="hint channel-hint">
           کانال یک‌طرفه است؛ فقط شما و مدیران سازمان می‌توانند پیام بفرستند.
@@ -2699,9 +2709,11 @@ onUnmounted(() => {
       v-if="showActivityFromMsg"
       class="modal"
       open
-      @click.self="closeModalOnBackdrop(closeActivityFromMsg)"
     >
       <div class="modal-card activity-sheet">
+        <button type="button" class="modal-x" aria-label="???? (Esc)" title="???? (Esc)" @click="(closeActivityFromMsg)()">
+          <UiIcon name="x" :size="18" />
+        </button>
         <template v-if="!activityCreatedId">
           <h3>تبدیل به فعالیت</h3>
           <p class="hint">از این پیام یک فعالیت در CRM ساخته می‌شود.</p>
@@ -2750,9 +2762,11 @@ onUnmounted(() => {
       v-if="showCrmLink"
       class="modal"
       open
-      @click.self="closeModalOnBackdrop(() => (showCrmLink = false))"
     >
       <div class="modal-card wide">
+        <button type="button" class="modal-x" aria-label="???? (Esc)" title="???? (Esc)" @click="(() => (showCrmLink = false))()">
+          <UiIcon name="x" :size="18" />
+        </button>
         <h3>لینک CRM</h3>
         <p class="hint">شخص، معامله یا تیکت را انتخاب کنید تا در پیام درج شود.</p>
         <div class="crm-kind-tabs" role="tablist">
@@ -2814,9 +2828,11 @@ onUnmounted(() => {
       v-if="showAiAssist"
       class="modal"
       open
-      @click.self="closeModalOnBackdrop(() => (showAiAssist = false))"
     >
       <div class="modal-card wide ai-assist-sheet">
+        <button type="button" class="modal-x" aria-label="???? (Esc)" title="???? (Esc)" @click="(() => (showAiAssist = false))()">
+          <UiIcon name="x" :size="18" />
+        </button>
         <h3>{{ brand.askLabelFa }}</h3>
         <p class="hint">با توجه به CRM و چند پیام اخیر این گفتگو پاسخ می‌دهد؛ می‌توانید پاسخ را در پیش‌نویس درج کنید.</p>
         <AskMentoPanel
@@ -2835,9 +2851,11 @@ onUnmounted(() => {
       v-if="showMembers"
       class="modal"
       open
-      @click.self="closeModalOnBackdrop(() => (showMembers = false))"
     >
       <div class="modal-card wide members-sheet member-picker-modal">
+        <button type="button" class="modal-x" aria-label="???? (Esc)" title="???? (Esc)" @click="(() => (showMembers = false))()">
+          <UiIcon name="x" :size="18" />
+        </button>
         <h3>اعضای {{ activeRoom ? roomTitle(activeRoom) : 'گفتگو' }}</h3>
         <p v-if="activeRoom?.kind === 'channel'" class="hint channel-hint">
           ادمین‌ها می‌توانند در کانال پیام بفرستند؛ بقیه فقط مشاهده می‌کنند.
@@ -2898,9 +2916,11 @@ onUnmounted(() => {
       v-if="showForward"
       class="modal"
       open
-      @click.self="closeModalOnBackdrop(() => (showForward = false))"
     >
       <div class="modal-card">
+        <button type="button" class="modal-x" aria-label="???? (Esc)" title="???? (Esc)" @click="(() => (showForward = false))()">
+          <UiIcon name="x" :size="18" />
+        </button>
         <h3>ارسال برای دیگری</h3>
         <p class="hint">{{ toFaDigits(selectedCount) }} پیام انتخاب شده</p>
         <div v-if="!forwardTargets.length" class="muted">گفتگوی دیگری برای ارسال نیست.</div>
@@ -2923,7 +2943,7 @@ onUnmounted(() => {
       </div>
     </dialog>
 
-    <dialog v-if="lightboxUrl" class="lightbox" open @click.self="lightboxUrl = ''">
+    <dialog v-if="lightboxUrl" class="lightbox" open>
       <button type="button" class="lightbox-close" aria-label="بستن" @click="lightboxUrl = ''">
         <UiIcon name="x" :size="18" />
       </button>
@@ -4262,7 +4282,25 @@ onUnmounted(() => {
   place-items: center;
   padding: 1rem;
 }
+.modal-x {
+  position: absolute;
+  top: 0.9rem;
+  left: 0.9rem;
+  z-index: 2;
+  width: 34px;
+  height: 34px;
+  border: 1px solid var(--line);
+  border-radius: 10px;
+  background: var(--surface);
+  color: var(--muted);
+  display: grid;
+  place-items: center;
+  cursor: pointer;
+}
+.modal-x:hover { background: var(--surface-subtle); color: var(--ink); }
+.modal-card > h3 { padding-inline-end: 2.6rem; }
 .modal-card {
+  position: relative;
   background: var(--surface);
   border-radius: 18px;
   padding: 1.25rem;
diff --git a/apps/web/src/views/InvoicesView.vue b/apps/web/src/views/InvoicesView.vue
index 228d7d6..bdc0cd9 100644
--- a/apps/web/src/views/InvoicesView.vue
+++ b/apps/web/src/views/InvoicesView.vue
@@ -1,5 +1,6 @@
 <script setup lang="ts">
 import { computed, onMounted, ref, watch } from 'vue';
+import { useEscClose } from '@/lib/modal-stack';
 import { matchesSearch } from '@/lib/search';
 import TableColumnsMenu from '@/components/TableColumnsMenu.vue';
 import { PAGE_SIZE_OPTIONS, usePageSize } from '@/lib/pageSize';
@@ -81,6 +82,7 @@ const pageSize = usePageSize('invoices', 10);
 const selected = ref<Set<string>>(new Set());
 const menuId = ref<string | null>(null);
 const filterSheet = ref(false);
+useEscClose(() => filterSheet.value, () => { filterSheet.value = false; });
 const addOpen = ref(false);
 const invoiceModal = ref<{ kind: 'invoice' | 'credit' | 'quote' } | null>(null);
 
@@ -617,10 +619,10 @@ onMounted(load);
       />
     </UiModal>
 
-    <div v-if="filterSheet" class="sheet-backdrop" @click="filterSheet = false">
-      <div class="sheet" @click.stop>
+    <div v-if="filterSheet" class="sheet-backdrop">
+      <div class="sheet" role="dialog" aria-modal="true" aria-label="فیلترها">
         <header>
-          <button type="button" class="icon-btn" @click="filterSheet = false">
+          <button type="button" class="icon-btn" aria-label="بستن (Esc)" title="بستن (Esc)" @click="filterSheet = false">
             <UiIcon name="x" :size="18" />
           </button>
           <button type="button" class="link" @click="clearFilters">حذف همه</button>
diff --git a/apps/web/src/views/LeadFormBuilderView.vue b/apps/web/src/views/LeadFormBuilderView.vue
index dfa1aec..2c2fdb5 100644
--- a/apps/web/src/views/LeadFormBuilderView.vue
+++ b/apps/web/src/views/LeadFormBuilderView.vue
@@ -19,6 +19,8 @@ import type {
   PipelineDto,
 } from '@mento/shared';
 import { toFaDigits } from '@/lib/jalali';
+import { prepareFormCover } from '@/lib/form-cover';
+import { useEscClose } from '@/lib/modal-stack';
 
 type Tab = 'edit' | 'settings' | 'share' | 'responses';
 type IconName =
@@ -133,9 +135,13 @@ const iframeSnippet = computed(
 const qrUrl = computed(() =>
   `https://api.qrserver.com/v1/create-qr-code/?size=160x160&data=${encodeURIComponent(publicUrl.value)}`,
 );
-const coverSrc = computed(() =>
-  form.value?.hasCover ? `/api/public/forms/${form.value.publicToken}/cover` : '',
-);
+const coverUploading = ref(false);
+const coverVersion = ref(0);
+const coverSrc = computed(() => {
+  if (!form.value?.hasCover) return '';
+  const v = coverVersion.value || Date.parse(form.value.updatedAt) || 0;
+  return `/api/public/forms/${form.value.publicToken}/cover?v=${v}`;
+});
 const editingField = computed(() => fields.value.find((f) => f.key === editFieldKey.value) ?? null);
 /** متن خام گزینه‌ها — جدا از options تا خط خالی هنگام تایپ حذف نشود */
 const optionsDraft = ref('');
@@ -149,11 +155,33 @@ function syncOptions() {
   if (editingField.value) editingField.value.options = parseOptions(optionsDraft.value);
 }
 
+const fieldSnapshot = ref<LeadFormFieldDto | null>(null);
+const fieldIsNew = ref(false);
+
 watch(editFieldKey, () => {
-  optionsDraft.value = editingField.value?.options.join('\n') ?? '';
+  const f = editingField.value;
+  optionsDraft.value = f?.options.join('\n') ?? '';
+  fieldSnapshot.value = f ? { ...f, options: [...f.options] } : null;
   sheetError.value = '';
 });
 
+function cancelFieldSheet() {
+  const snap = fieldSnapshot.value;
+  const key = editFieldKey.value;
+  if (key && fieldIsNew.value) {
+    fields.value = fields.value.filter((f) => f.key !== key);
+  } else if (key && snap) {
+    const i = fields.value.findIndex((f) => f.key === key);
+    if (i >= 0) fields.value[i] = { ...snap, options: [...snap.options] };
+  }
+  fieldIsNew.value = false;
+  editFieldKey.value = null;
+}
+
+useEscClose(() => editFieldKey.value, cancelFieldSheet);
+useEscClose(() => desktopPreviewOpen.value, () => { desktopPreviewOpen.value = false; });
+useEscClose(() => publishOpen.value, () => { publishOpen.value = false; });
+
 function needsOptions(type: string) {
   return type === 'select' || type === 'radio' || type === 'checkbox';
 }
@@ -172,6 +200,7 @@ function closeFieldSheet() {
     f.label = f.label.trim();
     optionsDraft.value = f.options.join('\n');
   }
+  fieldIsNew.value = false;
   editFieldKey.value = null;
 }
 
@@ -183,6 +212,7 @@ const COLOR_PRESETS = [
 ];
 const colorOpen = ref(false);
 const hexDraft = ref('');
+useEscClose(() => colorOpen.value, () => { colorOpen.value = false; });
 
 function toggleColor() {
   colorOpen.value = !colorOpen.value;
@@ -272,7 +302,9 @@ function addField(type: LeadFormFieldType, preset?: Partial<LeadFormFieldInput>)
 }
 
 function addAndEdit(type: LeadFormFieldType) {
-  editFieldKey.value = addField(type);
+  const key = addField(type);
+  fieldIsNew.value = true;
+  editFieldKey.value = key;
 }
 
 function duplicateField(field: LeadFormFieldDto) {
@@ -410,21 +442,33 @@ async function save() {
 }
 
 async function uploadCover(ev: Event) {
-  const file = (ev.target as HTMLInputElement).files?.[0];
+  const input = ev.target as HTMLInputElement;
+  const file = input.files?.[0];
+  input.value = '';
   if (!file) return;
-  const body = new FormData();
-  body.append('file', file);
+  error.value = '';
+  coverUploading.value = true;
   try {
+    const prepared = await prepareFormCover(file);
+    const body = new FormData();
+    body.append('file', prepared);
     const { data } = await api.post<LeadFormDto>(`/lead-forms/${id.value}/cover`, body);
-    applyForm(data);
-  } catch {
-    error.value = 'آپلود کاور ناموفق بود.';
+    form.value = data;
+    coverVersion.value = Date.now();
+  } catch (e) {
+    error.value = e instanceof Error && !axios.isAxiosError(e) ? e.message : 'آپلود کاور ناموفق بود.';
+  } finally {
+    coverUploading.value = false;
   }
 }
 
 async function clearCover() {
-  const { data } = await api.delete<LeadFormDto>(`/lead-forms/${id.value}/cover`);
-  applyForm(data);
+  try {
+    const { data } = await api.delete<LeadFormDto>(`/lead-forms/${id.value}/cover`);
+    form.value = data;
+  } catch {
+    error.value = 'حذف کاور ناموفق بود.';
+  }
 }
 
 async function loadResponses() {
@@ -576,11 +620,23 @@ onMounted(load);
       </aside>
 
       <section class="canvas">
-        <button class="cover-box" type="button" @click="coverInput?.click()">
+        <button
+          class="cover-box"
+          :class="{ has: coverSrc }"
+          type="button"
+          :disabled="coverUploading"
+          :style="coverSrc ? { background: submitColor } : undefined"
+          @click="coverInput?.click()"
+        >
           <img v-if="coverSrc" :src="coverSrc" alt="" />
-          <span v-else>+ افزودن لوگو یا تصویر کاور</span>
+          <span v-else-if="coverUploading">در حال پردازش تصویر…</span>
+          <span v-else class="cover-empty">
+            + افزودن لوگو یا تصویر کاور
+            <small>اندازهٔ استاندارد ۱۲۰۰×۴۰۰ پیکسل (۳:۱) — تصاویر دیگر خودکار تنظیم می‌شوند</small>
+          </span>
+          <span v-if="coverSrc" class="cover-change">{{ coverUploading ? 'در حال آپلود…' : 'تغییر تصویر' }}</span>
         </button>
-        <input ref="coverInput" type="file" accept="image/*" hidden @change="uploadCover" />
+        <input ref="coverInput" type="file" accept="image/png,image/jpeg,image/webp,image/svg+xml" hidden @change="uploadCover" />
         <button v-if="coverSrc" class="link" type="button" @click="clearCover">حذف کاور</button>
 
         <div class="title-card">
@@ -866,11 +922,13 @@ onMounted(load);
       </article>
     </section>
 
-    <div v-if="desktopPreviewOpen" class="overlay desk-overlay" @click.self="desktopPreviewOpen = false">
-      <div class="desk-sheet" role="dialog" aria-label="پیش‌نمایش دسکتاپ">
+    <div v-if="desktopPreviewOpen" class="overlay desk-overlay">
+      <div class="desk-sheet" role="dialog" aria-modal="true" aria-label="پیش‌نمایش دسکتاپ">
         <header>
           <strong>پیش‌نمایش دسکتاپ</strong>
-          <button class="btn ghost" type="button" @click="desktopPreviewOpen = false">بستن</button>
+          <button class="x-btn" type="button" aria-label="بستن (Esc)" title="بستن (Esc)" @click="desktopPreviewOpen = false">
+            <UiIcon name="x" :size="18" />
+          </button>
         </header>
         <div class="desk-form">
           <div class="cover" :style="{ background: submitColor }">
@@ -907,9 +965,14 @@ onMounted(load);
       </div>
     </div>
 
-    <div v-if="editingField" class="overlay" @click.self="closeFieldSheet">
-      <div class="sheet">
-        <h3>ویرایش فیلد</h3>
+    <div v-if="editingField" class="overlay">
+      <div class="sheet" role="dialog" aria-modal="true" aria-label="ویرایش فیلد">
+        <header class="sheet-head">
+          <h3>{{ fieldIsNew ? 'فیلد جدید' : 'ویرایش فیلد' }}</h3>
+          <button class="x-btn" type="button" aria-label="بستن (Esc)" title="بستن (Esc)" @click="cancelFieldSheet">
+            <UiIcon name="x" :size="18" />
+          </button>
+        </header>
         <label>عنوان <input v-model="editingField.label" maxlength="120" /></label>
         <label>متن راهنما <input v-model="editingField.placeholder" /></label>
         <label class="chk"><input v-model="editingField.required" type="checkbox" /> الزامی</label>
@@ -959,15 +1022,20 @@ onMounted(load);
           </small>
         </label>
         <p v-if="sheetError" class="sheet-error">{{ sheetError }}</p>
-        <button class="btn primary" type="button" @click="closeFieldSheet">تمام</button>
+        <div class="sheet-actions">
+          <button class="btn primary" type="button" @click="closeFieldSheet">تأیید</button>
+          <button class="btn ghost" type="button" @click="cancelFieldSheet">انصراف</button>
+        </div>
       </div>
     </div>
 
-    <div v-if="publishOpen" class="overlay" @click.self="publishOpen = false">
-      <div class="sheet publish-sheet" role="dialog" aria-label="انتشار فرم">
+    <div v-if="publishOpen" class="overlay">
+      <div class="sheet publish-sheet" role="dialog" aria-modal="true" aria-label="انتشار فرم">
         <header class="publish-head">
           <strong>انتشار فرم</strong>
-          <button class="btn ghost" type="button" @click="publishOpen = false">بستن</button>
+          <button class="x-btn" type="button" aria-label="بستن (Esc)" title="بستن (Esc)" @click="publishOpen = false">
+            <UiIcon name="x" :size="18" />
+          </button>
         </header>
         <div class="publish-preview">
           <div class="mini-cover" :style="{ background: submitColor }">
@@ -1031,14 +1099,13 @@ onMounted(load);
 }
 .desk-sheet header { display: flex; justify-content: space-between; align-items: center; }
 .desk-form { background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: 0 16px 40px rgba(15,23,42,.08); }
-.desk-form .cover { height: 140px; }
-.desk-form .cover img { width: 100%; height: 140px; object-fit: cover; }
+.desk-form .cover { height: auto; aspect-ratio: 3 / 1; max-height: 260px; }
 .desk-body { padding: 1.2rem 1.4rem 1.4rem; }
 .desk-body h3 { font-size: 1.35rem; }
 .desk-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem 1rem; }
 .desk-fields .wide { grid-column: 1 / -1; }
 .desk-form .send { justify-self: start; min-width: 200px; }
-.cover { height: 86px; display: grid; place-items: center; color: #fff; overflow: hidden; }
+.cover { aspect-ratio: 3 / 1; display: grid; place-items: center; color: #fff; overflow: hidden; }
 .cover img { width: 100%; height: 100%; object-fit: cover; }
 .preview-body { padding: 0.8rem; display: grid; gap: 0.5rem; }
 .preview-body h3 { margin: 0; font-size: 1rem; }
@@ -1047,8 +1114,14 @@ onMounted(load);
 .preview-body input, .preview-body textarea, .preview-body select { border: 1px solid #e2e8f0; border-radius: var(--radius); padding: 0.45rem 0.6rem; font: inherit; background: #f8fafc; }
 .send { border: 0; color: #fff; border-radius: var(--radius); min-height: var(--control-h); height: var(--control-h); font: inherit; font-weight: 700; display: inline-flex; align-items: center; justify-content: center; gap: 0.3rem; box-sizing: border-box; }
 .opts, .stars { color: #64748b; font-size: 0.75rem; display: grid; gap: 0.2rem; }
-.cover-box { width: 100%; min-height: 88px; border: 1.5px dashed #99f6e4; border-radius: var(--radius); background: #f0fdfa; color: #0f766e; font: inherit; font-weight: 700; cursor: pointer; overflow: hidden; }
-.cover-box img { width: 100%; height: 88px; object-fit: cover; display: block; }
+.cover-box { position: relative; width: 100%; aspect-ratio: 3 / 1; max-height: 200px; border: 1.5px dashed #99f6e4; border-radius: var(--radius); background: #f0fdfa; color: #0f766e; font: inherit; font-weight: 700; cursor: pointer; overflow: hidden; display: grid; place-items: center; padding: 0; }
+.cover-box.has { border-style: solid; border-color: transparent; }
+.cover-box:disabled { cursor: progress; opacity: 0.75; }
+.cover-box img { width: 100%; height: 100%; object-fit: cover; display: block; }
+.cover-empty { display: grid; gap: 0.25rem; justify-items: center; padding: 0.5rem; }
+.cover-empty small { font-weight: 500; font-size: 0.74rem; color: #64748b; }
+.cover-change { position: absolute; inset-inline-start: 0.5rem; bottom: 0.5rem; background: rgba(15,23,42,.65); color: #fff; font-size: 0.74rem; padding: 0.2rem 0.55rem; border-radius: 999px; opacity: 0; transition: opacity .15s; }
+.cover-box:hover .cover-change, .cover-box:disabled .cover-change { opacity: 1; }
 .title-card, .field-card, .submit-card, .adv-box { border: 1px solid #eef2f7; border-radius: var(--radius); padding: 0.8rem; display: grid; gap: 0.45rem; }
 .title { font: inherit; font-size: 1.1rem; font-weight: 700; color: #0f172a; border: 1px solid #e2e8f0; border-radius: var(--radius); padding: 0.55rem 0.7rem; background: #fff; width: 100%; box-sizing: border-box; }
 .title:hover { border-color: #99f6e4; }
@@ -1130,7 +1203,13 @@ onMounted(load);
 .row input { flex: 1; min-width: 0; }
 .sub { border-bottom: 1px solid #f1f5f9; padding: 0.5rem 0; }
 .overlay { position: fixed; inset: 0; background: rgba(15,23,42,.35); display: grid; place-items: center; z-index: 40; padding: 1rem; }
-.sheet { width: min(420px,100%); background: #fff; border-radius: var(--radius); padding: 1rem; display: grid; gap: 0.65rem; }
+.sheet { width: min(420px,100%); max-height: calc(100dvh - 2rem); overflow-y: auto; background: #fff; border-radius: var(--radius); padding: 1rem; display: grid; gap: 0.65rem; box-sizing: border-box; }
+.sheet-head { display: flex; align-items: center; justify-content: space-between; gap: 0.5rem; }
+.sheet-head h3 { margin: 0; }
+.sheet-actions { display: flex; gap: 0.5rem; }
+.sheet-actions .btn { flex: 1; }
+.x-btn { width: 36px; height: 36px; flex-shrink: 0; border: 1px solid #e2e8f0; border-radius: var(--radius); background: #fff; color: #64748b; display: grid; place-items: center; cursor: pointer; }
+.x-btn:hover { background: #f8fafc; color: #0f172a; border-color: #cbd5e1; }
 .link { background: none; border: 0; color: #0f766e; font: inherit; font-weight: 700; cursor: pointer; text-align: right; padding: 0; }
 .panel-title {
   margin: 0.2rem 0 0;
@@ -1296,8 +1375,8 @@ onMounted(load);
 .publish-preview p { margin: 0 0 0.35rem; color: #64748b; font-size: 0.82rem; }
 .publish-preview a { color: #0f766e; font-weight: 700; font-size: 0.85rem; }
 .mini-cover {
-  width: 72px;
-  height: 72px;
+  width: 108px;
+  aspect-ratio: 3 / 1;
   border-radius: var(--radius);
   overflow: hidden;
 }
@@ -1321,7 +1400,7 @@ onMounted(load);
   .tabs { display: grid; grid-template-columns: 1fr 1fr; }
   .stats-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
   .publish-preview { grid-template-columns: 56px 1fr; }
-  .mini-cover { width: 56px; height: 56px; }
+  .mini-cover { width: 84px; }
   .settings-grid { grid-template-columns: 1fr; }
   .settings-grid .span-2 { grid-column: auto; }
   .settings-card { padding: 0.85rem; }
diff --git a/apps/web/src/views/LeadFormPublicView.vue b/apps/web/src/views/LeadFormPublicView.vue
index 81c6e72..5333c30 100644
--- a/apps/web/src/views/LeadFormPublicView.vue
+++ b/apps/web/src/views/LeadFormPublicView.vue
@@ -289,7 +289,7 @@ onBeforeUnmount(() => window.removeEventListener('storage', onStorage));
   overflow: hidden;
   box-shadow: 0 0 0 1px #e2e8f0, 0 18px 44px rgba(15, 23, 42, 0.1);
 }
-.cover { height: 120px; display: grid; place-items: center; color: #fff; overflow: hidden; }
+.cover { aspect-ratio: 3 / 1; display: grid; place-items: center; color: #fff; overflow: hidden; }
 .cover img { width: 100%; height: 100%; object-fit: cover; display: block; }
 .body { padding: 1.1rem 1.15rem 1.25rem; display: grid; gap: 0.75rem; }
 header { display: grid; gap: 0.3rem; }
diff --git a/apps/web/src/views/LoyaltyClubView.vue b/apps/web/src/views/LoyaltyClubView.vue
index b8270f7..6a58921 100644
--- a/apps/web/src/views/LoyaltyClubView.vue
+++ b/apps/web/src/views/LoyaltyClubView.vue
@@ -1,5 +1,6 @@
 <script setup lang="ts">
 import { computed, onBeforeUnmount, onMounted, ref, watch } from 'vue';
+import { useEscClose } from '@/lib/modal-stack';
 import TableColumnsMenu from '@/components/TableColumnsMenu.vue';
 import { RouterLink } from 'vue-router';
 import axios from 'axios';
@@ -240,6 +241,8 @@ function closeModal() {
   modal.value = null;
 }
 
+useEscClose(() => modal.value, closeModal);
+
 function openSettings() {
   modal.value = 'settings';
 }
@@ -879,7 +882,7 @@ onBeforeUnmount(() => {
   </section>
 
   <Teleport to="body">
-    <div v-if="modal" class="overlay" @click.self="closeModal">
+    <div v-if="modal" class="overlay">
       <div class="sheet" role="dialog" aria-modal="true">
         <header>
           <h3>
@@ -892,7 +895,7 @@ onBeforeUnmount(() => {
             <template v-else-if="modal === 'reward'">{{ editingRewardId ? 'ویرایش پاداش' : 'پاداش جدید' }}</template>
             <template v-else>ثبت پاداش</template>
           </h3>
-          <button class="icon-btn" type="button" @click="closeModal"><UiIcon name="x" :size="16" /></button>
+          <button class="icon-btn" type="button" aria-label="بستن (Esc)" title="بستن (Esc)" @click="closeModal"><UiIcon name="x" :size="16" /></button>
         </header>
 
         <form v-if="modal === 'settings'" class="form" @submit.prevent="saveSettings">
diff --git a/apps/web/src/views/MessageAutomationsView.vue b/apps/web/src/views/MessageAutomationsView.vue
index ec55cbc..013cc2b 100644
--- a/apps/web/src/views/MessageAutomationsView.vue
+++ b/apps/web/src/views/MessageAutomationsView.vue
@@ -1,5 +1,6 @@
 <script setup lang="ts">
 import { computed, nextTick, onMounted, onUnmounted, ref, watch } from 'vue';
+import { useEscClose } from '@/lib/modal-stack';
 import { matchesSearch } from '@/lib/search';
 import TableColumnsMenu from '@/components/TableColumnsMenu.vue';
 import axios from 'axios';
@@ -290,6 +291,9 @@ function askRemove(row: MessageAutomationRuleDto) {
   pendingDelete.value = row;
 }
 
+useEscClose(() => fieldsSheet.value, () => { fieldsSheet.value = false; });
+useEscClose(() => pendingDelete.value, () => cancelRemove());
+
 function cancelRemove() {
   pendingDelete.value = null;
 }
@@ -1050,7 +1054,7 @@ onUnmounted(() => {
     </form>
 
     <div v-if="fieldsSheet" class="sheet-layer">
-      <button class="dim" type="button" aria-label="بستن" @click="fieldsSheet = false" />
+      <div class="dim" aria-hidden="true" />
       <section class="sheet" role="dialog" aria-modal="true" aria-label="فهرست فیلدها">
         <header>
           <h3>فهرست فیلدهای پویا</h3>
@@ -1158,7 +1162,7 @@ onUnmounted(() => {
     </div>
 
     <div v-if="pendingDelete" class="sheet-layer">
-      <button class="dim" type="button" aria-label="انصراف" @click="cancelRemove" />
+      <div class="dim" aria-hidden="true" />
       <section class="confirm-box" role="dialog" aria-modal="true" aria-labelledby="delete-confirm-title">
         <h3 id="delete-confirm-title">حذف قانون</h3>
         <p>آیا از حذف مطمئن هستید؟</p>
diff --git a/apps/web/src/views/NotesView.vue b/apps/web/src/views/NotesView.vue
index 6c8855f..400bc14 100644
--- a/apps/web/src/views/NotesView.vue
+++ b/apps/web/src/views/NotesView.vue
@@ -1,5 +1,6 @@
 <script setup lang="ts">
 import { computed, nextTick, onBeforeUnmount, onMounted, ref, watch } from 'vue';
+import { useEscClose } from '@/lib/modal-stack';
 import { useRoute } from 'vue-router';
 import axios from 'axios';
 import { api } from '@/lib/api';
@@ -579,6 +580,10 @@ async function openHistory(note: NoteDto) {
   }
 }
 
+useEscClose(() => editorOpen.value, () => closeEditor());
+useEscClose(() => moreSheetOpen.value, () => { moreSheetOpen.value = false; });
+useEscClose(() => historyOpen.value, () => closeHistory());
+
 function closeHistory() {
   historyOpen.value = false;
   historyNoteId.value = null;
@@ -1023,7 +1028,7 @@ onBeforeUnmount(() => {
     <!-- Unified create/edit modal -->
     <Teleport to="body">
       <div v-if="editorOpen" class="panel-root">
-        <div class="panel-backdrop" @click="closeEditor" />
+        <div class="panel-backdrop" aria-hidden="true" />
         <aside
           class="editor-panel"
           :style="{
@@ -1309,7 +1314,7 @@ onBeforeUnmount(() => {
           </nav>
 
           <div v-if="moreSheetOpen" class="sheet-root">
-            <div class="sheet-backdrop" @click="moreSheetOpen = false" />
+            <div class="sheet-backdrop" aria-hidden="true" />
             <div class="sheet">
               <header>
                 <h3>جزئیات بیشتر</h3>
@@ -1385,7 +1390,7 @@ onBeforeUnmount(() => {
 
     <Teleport to="body">
       <div v-if="historyOpen" class="history-root">
-        <div class="history-backdrop" @click="closeHistory" />
+        <div class="history-backdrop" aria-hidden="true" />
         <aside class="history-panel" role="dialog" aria-label="تاریخچه ویرایش">
           <header class="history-head">
             <h2>تاریخچه ویرایش</h2>
diff --git a/apps/web/src/views/TeamSettingsView.vue b/apps/web/src/views/TeamSettingsView.vue
index 148ab12..ae29e99 100644
--- a/apps/web/src/views/TeamSettingsView.vue
+++ b/apps/web/src/views/TeamSettingsView.vue
@@ -1,5 +1,6 @@
 <script setup lang="ts">
 import { computed, onMounted, onUnmounted, ref, watch } from 'vue';
+import { useEscClose } from '@/lib/modal-stack';
 import { matchesSearch } from '@/lib/search';
 import TableColumnsMenu from '@/components/TableColumnsMenu.vue';
 import { useRoute, useRouter } from 'vue-router';
@@ -66,6 +67,7 @@ const selectedRoleId = ref<string | null>(null);
 const showAllMembers = ref(false);
 const menuUserId = ref<string | null>(null);
 const isNarrow = ref(false);
+useEscClose(() => isNarrow.value && selectedRoleId.value, () => { selectedRoleId.value = null; });
 
 const inviteOpen = ref(false);
 const inviteSaving = ref(false);
@@ -851,7 +853,7 @@ onUnmounted(() => {
           </button>
         </footer>
       </aside>
-      <div v-if="isNarrow && selectedRoleId" class="sheet-backdrop" @click="selectedRoleId = null" />
+      <div v-if="isNarrow && selectedRoleId" class="sheet-backdrop" aria-hidden="true" />
 
       <div class="main-col">
         <div class="toolbar">