diff --git a/app/Filament/Resources/Learning/Assignments/Pages/ListAssignments.php b/app/Filament/Resources/Learning/Assignments/Pages/ListAssignments.php
index bf35372..c287442 100644
--- a/app/Filament/Resources/Learning/Assignments/Pages/ListAssignments.php
+++ b/app/Filament/Resources/Learning/Assignments/Pages/ListAssignments.php
@@ -186,16 +186,25 @@ public function assignments(): Collection
 
         $pinnedIds = $this->pinnedIds;
 
-        $assignments = Assignment::with(['course', 'assignmentSubmissions' => function ($q) use ($studentProfile) {
-            $q->where('student_id', $studentProfile->id)
-                ->orWhereHas('studyGroup', fn ($sq) => $sq->where('leader_id', $studentProfile->id)->orWhereHas('students', fn ($ssq) => $ssq->whereKey($studentProfile->id)));
-        }, 'studyGroups.students'])
+        $isStaff = auth()->user()->hasAnyRole(['Developer', 'Kosma']);
+
+        $assignments = Assignment::with([
+            'course',
+            'assignmentSubmissions' => function ($q) use ($studentProfile) {
+                $q->where('student_id', $studentProfile->id)
+                    ->orWhereHas('studyGroup', fn ($sq) => $sq->where('leader_id', $studentProfile->id)->orWhereHas('students', fn ($ssq) => $ssq->whereKey($studentProfile->id)));
+            },
+            'studyGroups.students',
+            'students',
+        ])
             ->whereHas('course', function ($q) {
                 $q->where('semester', app(GeneralSettings::class)->current_semester);
             })
-            ->where(function ($query) use ($studentProfile) {
-                $query->whereHas('students', fn ($q) => $q->whereKey($studentProfile->id))
-                    ->orWhereHas('studyGroups', fn ($q) => $q->where('leader_id', $studentProfile->id)->orWhereHas('students', fn ($sq) => $sq->whereKey($studentProfile->id)));
+            ->when(! $isStaff, function ($query) use ($studentProfile) {
+                $query->where(function ($q) use ($studentProfile) {
+                    $q->whereHas('students', fn ($sq) => $sq->whereKey($studentProfile->id))
+                        ->orWhereHas('studyGroups', fn ($sq) => $sq->where('leader_id', $studentProfile->id)->orWhereHas('students', fn ($ssq) => $ssq->whereKey($studentProfile->id)));
+                });
             })
             ->when($this->search, function ($query) {
                 $query->where(function ($q) {
@@ -273,11 +282,15 @@ public function assignmentCards()
             $isGroup = $assignment->type === AssignmentType::Group;
 
             $isLeader = false;
+            $isAssigned = false;
             if ($isGroup) {
                 $userGroup = $assignment->studyGroups?->first(function ($g) use ($studentProfile) {
                     return $g->leader_id === $studentProfile->id || $g->students?->contains($studentProfile->id);
                 });
                 $isLeader = $userGroup && $userGroup->leader_id === $studentProfile->id;
+                $isAssigned = $userGroup !== null;
+            } else {
+                $isAssigned = $assignment->students?->contains($studentProfile->id) ?? false;
             }
 
             $isSentToLecturer = $assignment->is_sent_to_lecturer;
@@ -286,13 +299,17 @@ public function assignmentCards()
             $canSubmit = ! $isSentToLecturer;
 
             $canSubmitByRole = ! $isGroup || $isLeader;
-            $canSubmitActual = $canSubmit && $canSubmitByRole;
+            $canSubmitActual = $canSubmit && $canSubmitByRole && $isAssigned;
 
-            $isUrgent = ! $isSubmitted && $canSubmitActual && now()->diffInHours($assignment->due_date) <= 48;
+            $isUrgent = $isAssigned && ! $isSubmitted && $canSubmitActual && now()->diffInHours($assignment->due_date) <= 48;
             $isNew = $assignment->created_at?->diffInDays(now()) <= 3;
             $isPinned = in_array($assignment->id, $pinnedIds);
 
-            if ($isSubmitted) {
+            if (! $isAssigned) {
+                $submissionLabel = 'Tidak Ditugaskan';
+                $submissionColor = 'gray';
+                $submissionIcon = 'heroicon-o-minus-circle';
+            } elseif ($isSubmitted) {
                 $submissionLabel = SystemNotification::getByKey('labels.assignment_status.submitted');
                 $submissionColor = 'success';
                 $submissionIcon = 'heroicon-o-check-circle';
@@ -329,12 +346,13 @@ public function assignmentCards()
                 'is_urgent' => $isUrgent,
                 'is_new' => $isNew,
                 'is_pinned' => $isPinned,
+                'is_assigned' => $isAssigned,
                 'submission_status' => (object) [
                     'label' => $submissionLabel,
                     'color' => $submissionColor,
                     'icon' => $submissionIcon,
                     'classes' => Arr::toCssClasses([
-                        'inline-flex items-center gap-1 rounded-full px-2.5 py-0.5 text-xs font-semibold', // font-semibold for clarity
+                        'inline-flex items-center gap-1 rounded-full px-2.5 py-0.5 text-xs font-semibold',
                         'bg-success-100 text-success-700 dark:bg-success-900/30 dark:text-success-400' => $submissionColor === 'success',
                         'bg-danger-100 text-danger-700 dark:bg-danger-900/30 dark:text-danger-400' => $submissionColor === 'danger',
                         'bg-warning-100 text-warning-700 dark:bg-warning-900/30 dark:text-warning-400' => $submissionColor === 'warning',
@@ -346,7 +364,7 @@ public function assignmentCards()
                     'color' => $deliveryColor,
                     'icon' => $deliveryIcon,
                     'classes' => Arr::toCssClasses([
-                        'inline-flex items-center gap-1 rounded-full px-2.5 py-0.5 text-xs font-bold ring-1 ring-inset', // font-bold and ring for "delivery" status to make it pop
+                        'inline-flex items-center gap-1 rounded-full px-2.5 py-0.5 text-xs font-bold ring-1 ring-inset',
                         'bg-success-50 text-success-700 ring-success-600/20 dark:bg-success-900/10 dark:text-success-400 dark:ring-success-500/20' => $deliveryColor === 'success',
                         'bg-amber-50 text-amber-700 ring-amber-600/20 dark:bg-amber-900/10 dark:text-amber-400 dark:ring-amber-500/20' => $deliveryColor === 'amber',
                     ]),
@@ -355,15 +373,17 @@ public function assignmentCards()
                 // Pre-calculated classes
                 'card_classes' => Arr::toCssClasses([
                     'group flex w-full rounded-xl border transition-all overflow-hidden relative',
-                    'border-primary-300 dark:border-primary-700 bg-primary-50/30 dark:bg-primary-900/10 shadow-sm' => $isPinned,
-                    'border-gray-200 dark:border-gray-700 bg-white dark:bg-gray-800' => ! $isPinned && $canSubmitActual,
-                    'border-gray-100 dark:border-gray-800 bg-gray-50 dark:bg-gray-800/40 opacity-80' => ! $canSubmitActual,
+                    'border-dashed border-gray-300 dark:border-gray-700 bg-gray-50/50 dark:bg-gray-800/10 opacity-75' => ! $isAssigned,
+                    'border-primary-300 dark:border-primary-700 bg-primary-50/30 dark:bg-primary-900/10 shadow-sm' => $isAssigned && $isPinned,
+                    'border-gray-200 dark:border-gray-700 bg-white dark:bg-gray-800' => $isAssigned && ! $isPinned && $canSubmitActual,
+                    'border-gray-100 dark:border-gray-800 bg-gray-50 dark:bg-gray-800/40 opacity-80' => $isAssigned && ! $isPinned && ! $canSubmitActual,
                 ]),
                 'icon_wrapper_classes' => Arr::toCssClasses([
                     'flex h-11 w-11 shrink-0 items-center justify-center rounded-lg',
-                    'bg-success-50 dark:bg-success-900/20 text-success-600 dark:text-success-400' => $isSubmitted,
-                    'bg-danger-50 dark:bg-danger-900/20 text-danger-600 dark:text-danger-400' => ! $isSubmitted && $isOverdue,
-                    'bg-warning-50 dark:bg-warning-900/20 text-warning-600 dark:text-warning-400' => ! $isSubmitted && ! $isOverdue,
+                    'bg-gray-100 dark:bg-gray-800 text-gray-400' => ! $isAssigned,
+                    'bg-success-50 dark:bg-success-900/20 text-success-600 dark:text-success-400' => $isAssigned && $isSubmitted,
+                    'bg-danger-50 dark:bg-danger-900/20 text-danger-600 dark:text-danger-400' => $isAssigned && ! $isSubmitted && $isOverdue,
+                    'bg-warning-50 dark:bg-warning-900/20 text-warning-600 dark:text-warning-400' => $isAssigned && ! $isSubmitted && ! $isOverdue,
                 ]),
                 'indicator_icon_classes' => Arr::toCssClasses([
                     'h-5 w-5 opacity-20',
diff --git a/app/Filament/Resources/Learning/Assignments/Pages/SubmitAssignmentPage.php b/app/Filament/Resources/Learning/Assignments/Pages/SubmitAssignmentPage.php
index c3d5139..e2ad655 100644
--- a/app/Filament/Resources/Learning/Assignments/Pages/SubmitAssignmentPage.php
+++ b/app/Filament/Resources/Learning/Assignments/Pages/SubmitAssignmentPage.php
@@ -101,7 +101,7 @@ public function statusCards(): array
     }
 
     #[Computed]
-    public function student(): Student
+    public function student(): ?Student
     {
         /** @var User|null $user */
         $user = Auth::user();
@@ -152,9 +152,28 @@ public function isOverdue(): bool
         return now()->isAfter($this->record?->due_date);
     }
 
+    #[Computed]
+    public function isAssigned(): bool
+    {
+        $student = $this->student;
+        if (! $student) {
+            return false;
+        }
+
+        if ($this->record?->type === AssignmentType::Individual) {
+            return $this->record?->students()->whereKey($student->id)->exists();
+        }
+
+        return $this->currentGroup !== null;
+    }
+
     #[Computed]
     public function canSubmit(): bool
     {
+        if (! $this->isAssigned) {
+            return false;
+        }
+
         if ($this->record?->type === AssignmentType::Individual) {
             return true;
         }
diff --git a/resources/views/filament/resources/learning/assignments/index.blade.php b/resources/views/filament/resources/learning/assignments/index.blade.php
index df51569..b01e3fd 100644
--- a/resources/views/filament/resources/learning/assignments/index.blade.php
+++ b/resources/views/filament/resources/learning/assignments/index.blade.php
@@ -38,6 +38,12 @@ class="inline-flex items-center gap-1.5 rounded-full bg-primary-100 text-primary
                                         📌 Dipinned
                                     </span>
                                 @endif
+                                @if (isset($card->is_assigned) && ! $card->is_assigned)
+                                    <span
+                                        class="inline-flex items-center gap-1.5 rounded-full bg-gray-100 text-gray-700 dark:bg-gray-800 dark:text-gray-300 px-2.5 py-1 text-xs font-bold whitespace-nowrap border border-gray-200 dark:border-gray-700">
+                                        🚫 Tidak Ditugaskan
+                                    </span>
+                                @endif
                                 @if ($card->is_new)
                                     <span
                                         class="inline-flex items-center gap-1.5 rounded-full bg-violet-100 text-violet-700 dark:bg-violet-900/30 dark:text-violet-400 px-2.5 py-1 text-xs font-bold whitespace-nowrap border border-violet-200/50 dark:border-violet-500/20">
diff --git a/resources/views/filament/resources/learning/assignments/submit-assignment.blade.php b/resources/views/filament/resources/learning/assignments/submit-assignment.blade.php
index 0a5e4af..01f8a41 100644
--- a/resources/views/filament/resources/learning/assignments/submit-assignment.blade.php
+++ b/resources/views/filament/resources/learning/assignments/submit-assignment.blade.php
@@ -105,6 +105,17 @@ class="block border-0"></iframe>
                     </div>
                 @endif
             </x-filament::section>
+        @elseif (!$this->isAssigned)
+            <x-filament::section>
+                <div
+                    class="flex flex-col items-center justify-center py-8 text-center text-gray-500 dark:text-gray-400">
+                    <x-filament::icon icon="heroicon-o-x-circle" class="w-12 h-12 mb-3 text-gray-400" />
+                    <p class="font-semibold text-gray-700 dark:text-gray-300">Anda Tidak Ditugaskan</p>
+                    <p class="text-sm mt-1 max-w-sm">
+                        Anda dapat melihat detail tugas ini karena role Anda (Kosma/Developer), tetapi Anda tidak ditugaskan untuk mengumpulkannya.
+                    </p>
+                </div>
+            </x-filament::section>
         @elseif (!$this->canSubmit)
             <x-filament::section>
                 <div