diff --git a/apps/events/api/schemas.py b/apps/events/api/schemas.py
index bf6ee63..3cd15b5 100644
--- a/apps/events/api/schemas.py
+++ b/apps/events/api/schemas.py
@@ -138,6 +138,7 @@ class EventListSchema(Schema):
 class EventCreateSchema(Schema):
     """Payload for creating events via the API."""
     title: str
+    slug: Optional[str] = None
     description: str
     event_type: str
     address: Optional[str] = None
@@ -150,11 +151,13 @@ class EventCreateSchema(Schema):
     capacity: Optional[int] = None
     price: Optional[float] = None
     status: str = "draft"
+    registration_success_markdown: Optional[str] = None
     gallery_image_ids: Optional[List[int]] = []
 
 class EventUpdateSchema(Schema):
     """Payload for updating events via the API."""
     title: Optional[str] = None
+    slug: Optional[str] = None
     description: Optional[str] = None
     event_type: Optional[str] = None
     address: Optional[str] = None
@@ -167,6 +170,7 @@ class EventUpdateSchema(Schema):
     capacity: Optional[int] = None
     price: Optional[float] = None
     status: Optional[str] = None
+    registration_success_markdown: Optional[str] = None
     gallery_image_ids: Optional[List[int]] = None
 
 class RegistrationSchema(ModelSchema):
@@ -199,12 +203,56 @@ class AdminUserSchema(Schema):
     first_name: str
     last_name: str
     email: str
+    mobile: Optional[str] = None
+    profile_picture: Optional[str] = None
+    profile_picture_thumbnail_url: Optional[str] = None
+    profile_picture_preview_url: Optional[str] = None
+    university: Optional[str] = None
+    major: Optional[str] = None
+    student_id: Optional[str] = None
+    year_of_study: Optional[int] = None
+
+    @staticmethod
+    def resolve_profile_picture(obj, context):
+        image = getattr(obj, "profile_picture", None)
+        if not getattr(image, "name", None):
+            return None
+        request = context["request"]
+        return request.build_absolute_uri(image.url) if hasattr(image, "url") else None
+
+    @staticmethod
+    def resolve_profile_picture_thumbnail_url(obj, context):
+        image = getattr(obj, "profile_picture", None)
+        if not getattr(image, "name", None):
+            return None
+        request = context["request"]
+        url = derivative_url(image, THUMBNAIL_VARIANT)
+        return request.build_absolute_uri(url) if url else None
+
+    @staticmethod
+    def resolve_profile_picture_preview_url(obj, context):
+        image = getattr(obj, "profile_picture", None)
+        if not getattr(image, "name", None):
+            return None
+        request = context["request"]
+        url = derivative_url(image, PREVIEW_VARIANT)
+        return request.build_absolute_uri(url) if url else None
+
+    @staticmethod
+    def resolve_university(obj):
+        return obj.get_university_display()
+
+    @staticmethod
+    def resolve_major(obj):
+        return obj.get_major_display()
 
 
 class PaymentAdminSchema(Schema):
     id: int
     authority: Optional[str]
     ref_id: Optional[str]
+    card_pan: Optional[str]
+    card_hash: Optional[str]
     status: int
     status_label: str
     base_amount: int
@@ -241,7 +289,7 @@ class EventAdminDetailSchema(EventSchema):
 
     @staticmethod
     def resolve_registrations(obj):
-        return obj.registrations.select_related("user").prefetch_related(
+        return obj.registrations.select_related("user", "user__university", "user__major").prefetch_related(
             "payments__discount_code"
         ).order_by("-registered_at")
 
diff --git a/apps/events/api/views.py b/apps/events/api/views.py
index 4985441..67f343f 100644
--- a/apps/events/api/views.py
+++ b/apps/events/api/views.py
@@ -1,18 +1,20 @@
 from django.conf import settings
+from django.core.files.base import ContentFile
 from django.shortcuts import get_object_or_404
 from django.db.models import Q, Case, When, IntegerField
 from django.utils.text import slugify
 from django.utils import timezone
 
-from ninja import Router, Query
+from ninja import File, Router, Query, UploadedFile
 from ninja.errors import HttpError
 from typing import List, Optional
-from uuid import UUID
+from uuid import UUID, uuid4
 
 from apps.events.api.schemas import (
     EventAdminDetailSchema,
     EventBriefSchema,
     EventCreateSchema,
+    EventGallerySchema,
     EventListSchema,
     EventSchema,
     EventUpdateSchema,
@@ -26,6 +28,8 @@ from apps.events.api.schemas import (
 )
 from core.authentication import jwt_auth
 from apps.events.models import Event, Registration
+from apps.gallery.models import Gallery
+from apps.gallery.tasks import process_uploaded_image
 from apps.notifications.services import notify_user
 from apps.payments.models import DiscountCode
 from apps.users.tasks import send_critical_sms
@@ -34,6 +38,28 @@ from core.api.schemas import ErrorSchema, MessageSchema
 events_router = Router()
 
 
+def _is_staff_user(user) -> bool:
+    return bool(user and (user.is_staff or user.is_superuser))
+
+
+def _staff_forbidden():
+    return 403, {"error": "اجازه دسترسی ندارید."}
+
+
+def _save_uploaded_image(instance, field_name: str, file: UploadedFile, folder: str):
+    if not file.content_type or not file.content_type.startswith("image/"):
+        return False, {"error": "فایل باید تصویر باشد."}
+    if file.size > 10 * 1024 * 1024:
+        return False, {"error": "حجم فایل باید کمتر از ۱۰ مگابایت باشد."}
+    extension = file.name.rsplit(".", 1)[-1] if "." in file.name else "jpg"
+    getattr(instance, field_name).save(
+        f"{folder}/{uuid4().hex}.{extension}",
+        ContentFile(file.read()),
+        save=True,
+    )
+    return True, instance
+
+
 def _frontend_event_url(event: Event) -> str:
     root = getattr(settings, "FRONTEND_ROOT", "/") or "/"
     if not root.endswith("/"):
@@ -130,20 +156,32 @@ def get_event_by_slug(request, slug: str):
     )
     return event
 
-@events_router.post("/", response=EventSchema)
+@events_router.post("/", response={201: EventSchema, 403: ErrorSchema, 400: ErrorSchema}, auth=jwt_auth)
 def create_event(request, payload: EventCreateSchema):
     """Create a new event"""
-    gallery_image_ids = payload.dict().pop('gallery_image_ids', [])
-    event = Event.objects.create(**payload.dict(exclude={'gallery_image_ids'}))
+    if not _is_staff_user(request.auth):
+        return _staff_forbidden()
+    data = payload.dict(exclude={'gallery_image_ids'})
+    gallery_image_ids = payload.gallery_image_ids or []
+    if data.get("slug"):
+        data["slug"] = slugify(data["slug"])
+    event = Event(**data)
+    try:
+        event.full_clean()
+        event.save()
+    except Exception as exc:
+        return 400, {"error": str(exc)}
 
     if gallery_image_ids:
         event.gallery_images.set(gallery_image_ids)
 
-    return event
+    return 201, event
 
-@events_router.put("/{int:event_id}", response=EventSchema)
+@events_router.put("/{int:event_id}", response={200: EventSchema, 403: ErrorSchema, 400: ErrorSchema}, auth=jwt_auth)
 def update_event(request, event_id: int, payload: EventUpdateSchema):
     """Update an existing event"""
+    if not _is_staff_user(request.auth):
+        return _staff_forbidden()
     event = get_object_or_404(Event, id=event_id, is_deleted=False)
     previous_state = {
         "status": event.status,
@@ -158,12 +196,18 @@ def update_event(request, event_id: int, payload: EventUpdateSchema):
     gallery_image_ids = update_data.pop('gallery_image_ids', None)
 
     for attr, value in update_data.items():
+        if attr == "slug" and value:
+            value = slugify(value)
         setattr(event, attr, value)
 
-    if 'title' in update_data:
+    if 'title' in update_data and not update_data.get("slug"):
         event.slug = slugify(event.title)
 
-    event.save()
+    try:
+        event.full_clean()
+        event.save()
+    except Exception as exc:
+        return 400, {"error": str(exc)}
 
     if gallery_image_ids is not None:
         event.gallery_images.set(gallery_image_ids)
@@ -196,14 +240,94 @@ def update_event(request, event_id: int, payload: EventUpdateSchema):
             sms_kind="event_reschedule",
         )
 
-    return event
+    return 200, event
 
-@events_router.delete("/{int:event_id}", response=MessageSchema)
+@events_router.delete("/{int:event_id}", response={200: MessageSchema, 403: ErrorSchema}, auth=jwt_auth)
 def delete_event(request, event_id: int):
     """Soft delete an event"""
+    if not _is_staff_user(request.auth):
+        return _staff_forbidden()
     event = get_object_or_404(Event, id=event_id, is_deleted=False)
     event.delete()
-    return {"message": "Event deleted successfully"}
+    return 200, {"message": "Event deleted successfully"}
+
+
+@events_router.post("/{int:event_id}/featured-image", response={200: EventSchema, 403: ErrorSchema, 400: ErrorSchema}, auth=jwt_auth)
+def upload_event_featured_image(request, event_id: int, file: UploadedFile = File(...)):
+    """Upload or replace the poster/featured image for an event."""
+    if not _is_staff_user(request.auth):
+        return _staff_forbidden()
+    event = get_object_or_404(Event, id=event_id, is_deleted=False)
+    ok, result = _save_uploaded_image(event, "featured_image", file, "events/featured")
+    if not ok:
+        return 400, result
+    return 200, event
+
+
+@events_router.delete("/{int:event_id}/featured-image", response={200: EventSchema, 403: ErrorSchema}, auth=jwt_auth)
+def delete_event_featured_image(request, event_id: int):
+    """Remove the poster/featured image for an event."""
+    if not _is_staff_user(request.auth):
+        return _staff_forbidden()
+    event = get_object_or_404(Event, id=event_id, is_deleted=False)
+    if event.featured_image:
+        event.featured_image.delete(save=False)
+        event.featured_image = None
+        event.save(update_fields=["featured_image", "updated_at"])
+    return 200, event
+
+
+@events_router.get("/{int:event_id}/gallery", response={200: List[EventGallerySchema], 403: ErrorSchema}, auth=jwt_auth)
+def list_event_gallery(request, event_id: int):
+    if not _is_staff_user(request.auth):
+        return _staff_forbidden()
+    event = get_object_or_404(Event, id=event_id, is_deleted=False)
+    return 200, event.gallery_images.filter(is_deleted=False).select_related("uploaded_by")
+
+
+@events_router.post("/{int:event_id}/gallery", response={201: EventGallerySchema, 403: ErrorSchema, 400: ErrorSchema}, auth=jwt_auth)
+def upload_event_gallery_image(
+    request,
+    event_id: int,
+    file: UploadedFile = File(...),
+    title: str | None = None,
+    alt_text: str | None = None,
+):
+    if not _is_staff_user(request.auth):
+        return _staff_forbidden()
+    event = get_object_or_404(Event, id=event_id, is_deleted=False)
+    if not file.content_type or not file.content_type.startswith("image/"):
+        return 400, {"error": "فایل باید تصویر باشد."}
+    if file.size > 10 * 1024 * 1024:
+        return 400, {"error": "حجم فایل باید کمتر از ۱۰ مگابایت باشد."}
+    try:
+        gallery_item = Gallery.objects.create(
+            title=title or file.name,
+            description="",
+            uploaded_by=request.auth,
+            alt_text=alt_text or title or file.name,
+            is_public=True,
+        )
+        gallery_item._defer_image_processing = True
+        extension = file.name.rsplit(".", 1)[-1] if "." in file.name else "jpg"
+        gallery_item.image.save(f"gallery/{uuid4().hex}.{extension}", ContentFile(file.read()))
+        event.gallery_images.add(gallery_item)
+        process_uploaded_image.delay(gallery_item.id)
+    except Exception as exc:
+        return 400, {"error": str(exc)}
+    return 201, gallery_item
+
+
+@events_router.delete("/{int:event_id}/gallery/{int:image_id}", response={200: MessageSchema, 403: ErrorSchema}, auth=jwt_auth)
+def delete_event_gallery_image(request, event_id: int, image_id: int):
+    if not _is_staff_user(request.auth):
+        return _staff_forbidden()
+    event = get_object_or_404(Event, id=event_id, is_deleted=False)
+    image = get_object_or_404(Gallery, id=image_id, is_deleted=False)
+    event.gallery_images.remove(image)
+    if not image.event_galleries.exclude(id=event.id).exists():
+        image.delete()
+    return 200, {"message": "Gallery image removed"}
 
 # Registration endpoints
 @events_router.get("/{int:event_id}/registrations", response=List[RegistrationSchema])
@@ -235,7 +359,7 @@ def list_event_registrations_admin(
     event = get_object_or_404(Event, id=event_id, is_deleted=False)
     qs = (
         event.registrations.filter(is_deleted=False)
-        .select_related("user")
+        .select_related("user", "user__university", "user__major")
         .prefetch_related("payments__discount_code")
         .order_by("-registered_at")
     )
@@ -259,6 +383,7 @@ def list_event_registrations_admin(
     if search:
         qs = qs.filter(
             Q(user__username__icontains=search)
+            | Q(user__mobile__icontains=search)
             | Q(user__email__icontains=search)
             | Q(user__first_name__icontains=search)
             | Q(user__last_name__icontains=search)
diff --git a/apps/events/tests/integration/test_events.py b/apps/events/tests/integration/test_events.py
index 6a33ed3..f4007a2 100644
--- a/apps/events/tests/integration/test_events.py
+++ b/apps/events/tests/integration/test_events.py
@@ -37,6 +37,7 @@ class EventsAPIIntegrationTests(TestCase):
         cls.user = User.objects.create_user(
             username="event_user",
             email="event.user@example.com",
+            mobile="09198000001",
             password=cls.password,
         )
         cls.user.is_email_verified = True
@@ -45,6 +46,7 @@ class EventsAPIIntegrationTests(TestCase):
         cls.staff = User.objects.create_user(
             username="event_staff",
             email="event.staff@example.com",
+            mobile="09198000002",
             password=cls.password,
             is_staff=True,
         )
@@ -151,19 +153,21 @@ class EventsAPIIntegrationTests(TestCase):
             "/api/events/",
             data=json.dumps(payload),
             content_type="application/json",
+            **self._auth_headers(self.staff_token),
         )
-        self.assertEqual(created.status_code, 200)
+        self.assertEqual(created.status_code, 201)
         event_id = created.json()["id"]
 
         updated = self.client.put(
             f"/api/events/{event_id}",
             data=json.dumps({"title": "Updated Event"}),
             content_type="application/json",
+            **self._auth_headers(self.staff_token),
         )
         self.assertEqual(updated.status_code, 200)
         self.assertEqual(updated.json()["title"], "Updated Event")
 
-        deleted = self.client.delete(f"/api/events/{event_id}")
+        deleted = self.client.delete(f"/api/events/{event_id}", **self._auth_headers(self.staff_token))
         self.assertEqual(deleted.status_code, 200)
 
     def test_admin_detail_and_registration_list_requires_staff(self):
@@ -230,9 +234,10 @@ class EventsAPIIntegrationTests(TestCase):
             "/api/events/",
             data=json.dumps(payload),
             content_type="application/json",
+            **self._auth_headers(self.staff_token),
         )
         body = response.json()
-        self.assertEqual(response.status_code, 200)
+        self.assertEqual(response.status_code, 201)
         self.assertTrue(body["gallery_images"])
 
         updated = self.client.put(
@@ -244,6 +249,7 @@ class EventsAPIIntegrationTests(TestCase):
                 }
             ),
             content_type="application/json",
+            **self._auth_headers(self.staff_token),
         )
         self.assertEqual(updated.status_code, 200)
         self.assertEqual(updated.json()["slug"], "gallery-event-updated")
@@ -370,7 +376,8 @@ class EventsAPIIntegrationTests(TestCase):
         self.assertEqual(response.status_code, 400)
 
     def _create_event_user(self, username, email):
-        user = User.objects.create_user(username=username, email=email, password=self.password)
+        suffix = str(abs(hash(username)) % 1_000_000).zfill(6)
+        user = User.objects.create_user(username=username, email=email, mobile=f"09190{suffix}", password=self.password)
         user.is_email_verified = True
         user.save(update_fields=["is_email_verified"])
         user.major = self.user.major
@@ -468,6 +475,7 @@ class EventSchemasIntegrationTests(TestCase):
         self.user = User.objects.create_user(
             username="schema_user",
             email="schema.user@example.com",
+            mobile="09198000003",
             password=self.password,
         )
         self.user.is_email_verified = True