diff --git a/PLAN.md b/PLAN.md
index debd517..480af39 100644
--- a/PLAN.md
+++ b/PLAN.md
@@ -305,7 +305,7 @@ Clients configure this DSN in their Sentry SDK — no changes needed on the SDK
 
 ### Milestone 2 — Usable product
 - [x] 8. Project CRUD and settings pages
-- [ ] 9. Team/member management (invite users to projects)
+- [x] 9. Team/member management (invite users to projects)
 - [x] 10. Stacktrace viewer with collapsible frames
 - [x] 11. Breadcrumbs, tags, context panels on issue detail
 - [x] 12. Filters, search, bulk actions on issues list
diff --git a/app/Http/Controllers/Controller.php b/app/Http/Controllers/Controller.php
index 8677cd5..bd3e17e 100644
--- a/app/Http/Controllers/Controller.php
+++ b/app/Http/Controllers/Controller.php
@@ -2,7 +2,11 @@
 
 namespace App\Http\Controllers;
 
-abstract class Controller
+use Illuminate\Foundation\Auth\Access\AuthorizesRequests;
+use Illuminate\Foundation\Validation\ValidatesRequests;
+use Illuminate\Routing\Controller as BaseController;
+
+abstract class Controller extends BaseController
 {
-    //
+    use AuthorizesRequests, ValidatesRequests;
 }
diff --git a/app/Http/Controllers/IssueController.php b/app/Http/Controllers/IssueController.php
index fad7a35..2a7787a 100644
--- a/app/Http/Controllers/IssueController.php
+++ b/app/Http/Controllers/IssueController.php
@@ -12,7 +12,7 @@ class IssueController extends Controller
 {
     public function index(Request $request, Project $project): View
     {
-        $this->authorizeProject($request, $project);
+        $this->authorize('view', $project);
 
         $query = $project->issues();
 
@@ -69,7 +69,7 @@ class IssueController extends Controller
 
     public function show(Request $request, Project $project, Issue $issue): View
     {
-        $this->authorizeProject($request, $project);
+        $this->authorize('view', $project);
         abort_unless($issue->project_id === $project->id, 404);
 
         $environment = $request->query('environment');
@@ -107,7 +107,7 @@ class IssueController extends Controller
 
     public function updateStatus(Request $request, Project $project, Issue $issue): RedirectResponse
     {
-        $this->authorizeProject($request, $project);
+        $this->authorize('view', $project);
         abort_unless($issue->project_id === $project->id, 404);
 
         $action = $request->input('action');
@@ -125,7 +125,7 @@ class IssueController extends Controller
 
     public function bulkAction(Request $request, Project $project): RedirectResponse
     {
-        $this->authorizeProject($request, $project);
+        $this->authorize('view', $project);
 
         $validated = $request->validate([
             'action' => 'required|in:resolve,ignore,mute,delete',
@@ -147,12 +147,4 @@ class IssueController extends Controller
 
         return back()->with('status', "{$count} issue(s) {$validated['action']}d.");
     }
-
-    private function authorizeProject(Request $request, Project $project): void
-    {
-        abort_unless(
-            $request->user()->projects()->where('projects.id', $project->id)->exists(),
-            403,
-        );
-    }
 }
diff --git a/app/Http/Controllers/ProjectController.php b/app/Http/Controllers/ProjectController.php
index 4ef12f9..8e3df48 100644
--- a/app/Http/Controllers/ProjectController.php
+++ b/app/Http/Controllers/ProjectController.php
@@ -43,14 +43,14 @@ class ProjectController extends Controller
 
     public function settings(Request $request, Project $project): View
     {
-        $this->authorizeProject($request, $project);
+        $this->authorize('view', $project);
 
         return view('projects.settings', compact('project'));
     }
 
     public function update(Request $request, Project $project): RedirectResponse
     {
-        $this->authorizeProject($request, $project);
+        $this->authorize('update', $project);
 
         $validated = $request->validate([
             'name' => 'required|string|max:255',
@@ -64,7 +64,7 @@ class ProjectController extends Controller
 
     public function regenerateKeys(Request $request, Project $project): RedirectResponse
     {
-        $this->authorizeProject($request, $project);
+        $this->authorize('manageSettings', $project);
 
         $project->regenerateKeys();
 
@@ -73,18 +73,10 @@ class ProjectController extends Controller
 
     public function destroy(Request $request, Project $project): RedirectResponse
     {
-        $this->authorizeProject($request, $project);
+        $this->authorize('delete', $project);
 
         $project->delete();
 
         return redirect()->route('projects.index')->with('status', 'Project deleted.');
     }
-
-    private function authorizeProject(Request $request, Project $project): void
-    {
-        abort_unless(
-            $request->user()->projects()->where('projects.id', $project->id)->exists(),
-            403,
-        );
-    }
 }
diff --git a/app/Http/Controllers/ProjectMemberController.php b/app/Http/Controllers/ProjectMemberController.php
new file mode 100644
index 0000000..28900dc
--- /dev/null
+++ b/app/Http/Controllers/ProjectMemberController.php
@@ -0,0 +1,173 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use App\Mail\ProjectInvitationMail;
+use App\Models\Project;
+use App\Models\ProjectInvitation;
+use App\Models\User;
+use Illuminate\Http\RedirectResponse;
+use Illuminate\Http\Request;
+use Illuminate\Support\Facades\Mail;
+use Illuminate\View\View;
+
+class ProjectMemberController extends Controller
+{
+    /**
+     * Display team members for a project
+     */
+    public function index(Project $project): View
+    {
+        $this->authorize('view', $project);
+
+        $members = $project->users()
+            ->withPivot('role', 'created_at')
+            ->orderBy('project_user.created_at', 'desc')
+            ->get();
+
+        $pendingInvitations = $project->invitations()
+            ->whereNull('accepted_at')
+            ->where('expires_at', '>', now())
+            ->with('inviter')
+            ->orderBy('created_at', 'desc')
+            ->get();
+
+        return view('projects.members.index', [
+            'project' => $project,
+            'members' => $members,
+            'pendingInvitations' => $pendingInvitations,
+        ]);
+    }
+
+    /**
+     * Invite a new member to the project
+     */
+    public function invite(Request $request, Project $project): RedirectResponse
+    {
+        $this->authorize('manageMembers', $project);
+
+        $validated = $request->validate([
+            'email' => 'required|email',
+            'role' => 'required|in:member,admin',
+        ]);
+
+        // Check if user is already a member
+        $existingUser = User::where('email', $validated['email'])->first();
+        if ($existingUser && $project->users()->where('users.id', $existingUser->id)->exists()) {
+            return back()->withErrors(['email' => 'This user is already a member of the project.']);
+        }
+
+        // Check if there's already a pending invitation
+        $existingInvitation = $project->invitations()
+            ->where('email', $validated['email'])
+            ->whereNull('accepted_at')
+            ->where('expires_at', '>', now())
+            ->first();
+
+        if ($existingInvitation) {
+            return back()->withErrors(['email' => 'An invitation has already been sent to this email.']);
+        }
+
+        // Create invitation
+        $invitation = $project->invitations()->create([
+            'email' => $validated['email'],
+            'role' => $validated['role'],
+            'invited_by' => auth()->id(),
+        ]);
+
+        // Send invitation email
+        Mail::to($invitation->email)->send(new ProjectInvitationMail($invitation));
+
+        return back()->with('success', 'Invitation sent successfully.');
+    }
+
+    /**
+     * Accept an invitation
+     */
+    public function acceptInvitation(string $token): RedirectResponse
+    {
+        $invitation = ProjectInvitation::where('token', $token)->firstOrFail();
+
+        if ($invitation->isExpired()) {
+            return redirect()->route('dashboard')->withErrors(['error' => 'This invitation has expired.']);
+        }
+
+        if ($invitation->accepted_at) {
+            return redirect()->route('dashboard')->withErrors(['error' => 'This invitation has already been accepted.']);
+        }
+
+        // Check if the logged-in user's email matches
+        if (auth()->user()->email !== $invitation->email) {
+            return redirect()->route('dashboard')->withErrors(['error' => 'This invitation was sent to a different email address.']);
+        }
+
+        $invitation->accept(auth()->user());
+
+        return redirect()->route('projects.issues.index', $invitation->project)
+            ->with('success', 'You have joined the project successfully.');
+    }
+
+    /**
+     * Update a member's role
+     */
+    public function updateRole(Request $request, Project $project, User $user): RedirectResponse
+    {
+        $this->authorize('manageMembers', $project);
+
+        $validated = $request->validate([
+            'role' => 'required|in:member,admin,owner',
+        ]);
+
+        // Don't allow changing your own role
+        if ($user->id === auth()->id()) {
+            return back()->withErrors(['error' => 'You cannot change your own role.']);
+        }
+
+        // Check if user is a member of the project
+        if (!$project->users()->where('users.id', $user->id)->exists()) {
+            return back()->withErrors(['error' => 'User is not a member of this project.']);
+        }
+
+        $project->users()->updateExistingPivot($user->id, ['role' => $validated['role']]);
+
+        return back()->with('success', 'Member role updated successfully.');
+    }
+
+    /**
+     * Remove a member from the project
+     */
+    public function destroy(Project $project, User $user): RedirectResponse
+    {
+        $this->authorize('manageMembers', $project);
+
+        // Don't allow removing yourself
+        if ($user->id === auth()->id()) {
+            return back()->withErrors(['error' => 'You cannot remove yourself from the project.']);
+        }
+
+        // Check if user is a member
+        if (!$project->users()->where('users.id', $user->id)->exists()) {
+            return back()->withErrors(['error' => 'User is not a member of this project.']);
+        }
+
+        $project->users()->detach($user->id);
+
+        return back()->with('success', 'Member removed from project successfully.');
+    }
+
+    /**
+     * Cancel a pending invitation
+     */
+    public function cancelInvitation(Project $project, ProjectInvitation $invitation): RedirectResponse
+    {
+        $this->authorize('manageMembers', $project);
+
+        if ($invitation->project_id !== $project->id) {
+            abort(404);
+        }
+
+        $invitation->delete();
+
+        return back()->with('success', 'Invitation cancelled successfully.');
+    }
+}
diff --git a/app/Mail/ProjectInvitationMail.php b/app/Mail/ProjectInvitationMail.php
new file mode 100644
index 0000000..12d25fe
--- /dev/null
+++ b/app/Mail/ProjectInvitationMail.php
@@ -0,0 +1,44 @@
+<?php
+
+namespace App\Mail;
+
+use App\Models\ProjectInvitation;
+use Illuminate\Bus\Queueable;
+use Illuminate\Contracts\Queue\ShouldQueue;
+use Illuminate\Mail\Mailable;
+use Illuminate\Mail\Mailables\Content;
+use Illuminate\Mail\Mailables\Envelope;
+use Illuminate\Queue\SerializesModels;
+
+class ProjectInvitationMail extends Mailable implements ShouldQueue
+{
+    use Queueable, SerializesModels;
+
+    /**
+     * Create a new message instance.
+     */
+    public function __construct(
+        public ProjectInvitation $invitation
+    ) {
+    }
+
+    /**
+     * Get the message envelope.
+     */
+    public function envelope(): Envelope
+    {
+        return new Envelope(
+            subject: "You've been invited to join {$this->invitation->project->name}",
+        );
+    }
+
+    /**
+     * Get the message content definition.
+     */
+    public function content(): Content
+    {
+        return new Content(
+            markdown: 'emails.project-invitation',
+        );
+    }
+}
diff --git a/app/Models/Project.php b/app/Models/Project.php
index 856ce38..aa23d09 100644
--- a/app/Models/Project.php
+++ b/app/Models/Project.php
@@ -55,6 +55,11 @@ class Project extends Model
         return $this->hasMany(AlertRule::class);
     }
 
+    public function invitations(): HasMany
+    {
+        return $this->hasMany(ProjectInvitation::class);
+    }
+
     public function regenerateKeys(): void
     {
         $this->update([
@@ -62,4 +67,23 @@ class Project extends Model
             'dsn_secret_key' => Str::uuid()->toString(),
         ]);
     }
+
+    public function userRole(User $user): ?string
+    {
+        return $this->users()
+            ->where('users.id', $user->id)
+            ->first()
+            ?->pivot
+            ?->role;
+    }
+
+    public function hasOwner(User $user): bool
+    {
+        return $this->userRole($user) === 'owner';
+    }
+
+    public function hasAdmin(User $user): bool
+    {
+        return in_array($this->userRole($user), ['owner', 'admin']);
+    }
 }
diff --git a/app/Models/ProjectInvitation.php b/app/Models/ProjectInvitation.php
new file mode 100644
index 0000000..1650811
--- /dev/null
+++ b/app/Models/ProjectInvitation.php
@@ -0,0 +1,67 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Support\Str;
+
+class ProjectInvitation extends Model
+{
+    protected $fillable = [
+        'project_id',
+        'invited_by',
+        'email',
+        'role',
+        'token',
+        'expires_at',
+        'accepted_at',
+    ];
+
+    protected $casts = [
+        'expires_at' => 'datetime',
+        'accepted_at' => 'datetime',
+    ];
+
+    protected static function booted(): void
+    {
+        static::creating(function (ProjectInvitation $invitation) {
+            $invitation->token ??= Str::random(32);
+            $invitation->expires_at ??= now()->addDays(7);
+        });
+    }
+
+    public function project(): BelongsTo
+    {
+        return $this->belongsTo(Project::class);
+    }
+
+    public function inviter(): BelongsTo
+    {
+        return $this->belongsTo(User::class, 'invited_by');
+    }
+
+    public function isExpired(): bool
+    {
+        return $this->expires_at->isPast();
+    }
+
+    public function isPending(): bool
+    {
+        return !$this->accepted_at && !$this->isExpired();
+    }
+
+    public function accept(User $user): void
+    {
+        if ($this->isExpired()) {
+            throw new \RuntimeException('Invitation has expired');
+        }
+
+        if ($this->accepted_at) {
+            throw new \RuntimeException('Invitation has already been accepted');
+        }
+
+        $this->project->users()->attach($user->id, ['role' => $this->role]);
+        $this->update(['accepted_at' => now()]);
+    }
+}
diff --git a/app/Policies/ProjectPolicy.php b/app/Policies/ProjectPolicy.php
new file mode 100644
index 0000000..c86f156
--- /dev/null
+++ b/app/Policies/ProjectPolicy.php
@@ -0,0 +1,80 @@
+<?php
+
+namespace App\Policies;
+
+use App\Models\Project;
+use App\Models\User;
+use Illuminate\Auth\Access\Response;
+
+class ProjectPolicy
+{
+    /**
+     * Determine whether the user can view any models.
+     */
+    public function viewAny(User $user): bool
+    {
+        return true;
+    }
+
+    /**
+     * Determine whether the user can view the model.
+     */
+    public function view(User $user, Project $project): bool
+    {
+        return $project->users()->where('users.id', $user->id)->exists();
+    }
+
+    /**
+     * Determine whether the user can create models.
+     */
+    public function create(User $user): bool
+    {
+        return true;
+    }
+
+    /**
+     * Determine whether the user can update the model.
+     */
+    public function update(User $user, Project $project): bool
+    {
+        return $this->hasRole($user, $project, ['owner', 'admin']);
+    }
+
+    /**
+     * Determine whether the user can delete the model.
+     */
+    public function delete(User $user, Project $project): bool
+    {
+        return $this->hasRole($user, $project, ['owner']);
+    }
+
+    /**
+     * Determine whether the user can manage members.
+     */
+    public function manageMembers(User $user, Project $project): bool
+    {
+        return $this->hasRole($user, $project, ['owner', 'admin']);
+    }
+
+    /**
+     * Determine whether the user can manage settings.
+     */
+    public function manageSettings(User $user, Project $project): bool
+    {
+        return $this->hasRole($user, $project, ['owner', 'admin']);
+    }
+
+    /**
+     * Check if user has one of the specified roles for the project
+     */
+    private function hasRole(User $user, Project $project, array $roles): bool
+    {
+        $userRole = $project->users()
+            ->where('users.id', $user->id)
+            ->first()
+            ?->pivot
+            ?->role;
+
+        return $userRole && in_array($userRole, $roles);
+    }
+}
diff --git a/database/migrations/2026_03_21_134803_create_project_invitations_table.php b/database/migrations/2026_03_21_134803_create_project_invitations_table.php
new file mode 100644
index 0000000..022f6bc
--- /dev/null
+++ b/database/migrations/2026_03_21_134803_create_project_invitations_table.php
@@ -0,0 +1,36 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('project_invitations', function (Blueprint $table) {
+            $table->id();
+            $table->foreignUlid('project_id')->constrained()->cascadeOnDelete();
+            $table->foreignId('invited_by')->constrained('users')->cascadeOnDelete();
+            $table->string('email');
+            $table->string('role')->default('member'); // member, admin, owner
+            $table->string('token')->unique();
+            $table->timestamp('accepted_at')->nullable();
+            $table->timestamp('expires_at');
+            $table->timestamps();
+
+            $table->index(['email', 'project_id']);
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('project_invitations');
+    }
+};
diff --git a/resources/views/emails/project-invitation.blade.php b/resources/views/emails/project-invitation.blade.php
new file mode 100644
index 0000000..f99a688
--- /dev/null
+++ b/resources/views/emails/project-invitation.blade.php
@@ -0,0 +1,16 @@
+<x-mail::message>
+# You've been invited!
+
+{{ $invitation->inviter->name }} has invited you to join the **{{ $invitation->project->name }}** project as a **{{ ucfirst($invitation->role) }}**.
+
+<x-mail::button :url="route('invitations.accept', $invitation->token)">
+Accept Invitation
+</x-mail::button>
+
+This invitation will expire {{ $invitation->expires_at->diffForHumans() }}.
+
+If you didn't expect this invitation, you can safely ignore this email.
+
+Thanks,<br>
+{{ config('app.name') }}
+</x-mail::message>
diff --git a/resources/views/layouts/navigation.blade.php b/resources/views/layouts/navigation.blade.php
index 4303dd8..fb7a3a9 100644
--- a/resources/views/layouts/navigation.blade.php
+++ b/resources/views/layouts/navigation.blade.php
@@ -24,6 +24,9 @@
                         <x-nav-link :href="route('projects.alerts.edit', $currentProject)" :active="request()->routeIs('projects.alerts.*')">
                             Alerts
                         </x-nav-link>
+                        <x-nav-link :href="route('projects.members.index', $currentProject)" :active="request()->routeIs('projects.members.*')">
+                            Team
+                        </x-nav-link>
                         <x-nav-link :href="route('projects.settings', $currentProject)" :active="request()->routeIs('projects.settings')">
                             Settings
                         </x-nav-link>
diff --git a/resources/views/projects/members/index.blade.php b/resources/views/projects/members/index.blade.php
new file mode 100644
index 0000000..005d2ab
--- /dev/null
+++ b/resources/views/projects/members/index.blade.php
@@ -0,0 +1,189 @@
+<x-app-layout>
+    @php($currentProject = $project)
+
+    <x-slot name="header">
+        <h2 class="font-semibold text-xl text-gray-800 leading-tight">{{ $project->name }} &mdash; Team Members</h2>
+    </x-slot>
+
+    <div class="py-8">
+        <div class="max-w-5xl mx-auto sm:px-6 lg:px-8 space-y-6">
+
+            @if(session('success'))
+                <div class="bg-green-50 border border-green-200 text-green-700 px-4 py-3 rounded-md text-sm">
+                    {{ session('success') }}
+                </div>
+            @endif
+
+            @if($errors->any())
+                <div class="bg-red-50 border border-red-200 text-red-700 px-4 py-3 rounded-md text-sm">
+                    <ul class="list-disc list-inside">
+                        @foreach($errors->all() as $error)
+                            <li>{{ $error }}</li>
+                        @endforeach
+                    </ul>
+                </div>
+            @endif
+
+            {{-- Invite Member --}}
+            @can('manageMembers', $project)
+                <div class="bg-white overflow-hidden shadow-sm sm:rounded-lg p-6">
+                    <h3 class="text-lg font-medium text-gray-900 mb-4">Invite Team Member</h3>
+                    <form method="POST" action="{{ route('projects.members.invite', $project) }}" class="flex gap-3">
+                        @csrf
+                        <div class="flex-1">
+                            <x-text-input
+                                id="email"
+                                name="email"
+                                type="email"
+                                class="w-full"
+                                placeholder="email@example.com"
+                                required
+                            />
+                        </div>
+                        <div class="w-40">
+                            <select
+                                id="role"
+                                name="role"
+                                class="w-full border-gray-300 focus:border-indigo-500 focus:ring-indigo-500 rounded-md shadow-sm"
+                                required
+                            >
+                                <option value="member">Member</option>
+                                <option value="admin">Admin</option>
+                            </select>
+                        </div>
+                        <x-primary-button>Send Invite</x-primary-button>
+                    </form>
+                    <p class="text-xs text-gray-500 mt-2">
+                        <strong>Member:</strong> Can view issues and events.
+                        <strong>Admin:</strong> Can also manage team members and project settings.
+                    </p>
+                </div>
+            @endcan
+
+            {{-- Pending Invitations --}}
+            @if($pendingInvitations->isNotEmpty())
+                <div class="bg-white overflow-hidden shadow-sm sm:rounded-lg">
+                    <div class="p-6 border-b border-gray-200">
+                        <h3 class="text-lg font-medium text-gray-900">Pending Invitations</h3>
+                    </div>
+                    <div class="divide-y divide-gray-200">
+                        @foreach($pendingInvitations as $invitation)
+                            <div class="p-4 flex items-center justify-between">
+                                <div class="flex-1">
+                                    <div class="font-medium text-gray-900">{{ $invitation->email }}</div>
+                                    <div class="text-sm text-gray-500">
+                                        Invited by {{ $invitation->inviter->name }}
+                                        · {{ $invitation->created_at->diffForHumans() }}
+                                        · Expires {{ $invitation->expires_at->diffForHumans() }}
+                                    </div>
+                                </div>
+                                <div class="flex items-center gap-3">
+                                    <span class="inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium bg-blue-100 text-blue-800">
+                                        {{ ucfirst($invitation->role) }}
+                                    </span>
+                                    @can('manageMembers', $project)
+                                        <form method="POST" action="{{ route('projects.members.cancel-invitation', [$project, $invitation]) }}" class="inline">
+                                            @csrf
+                                            @method('DELETE')
+                                            <button
+                                                type="submit"
+                                                class="text-sm text-red-600 hover:text-red-800"
+                                                onclick="return confirm('Cancel this invitation?')"
+                                            >
+                                                Cancel
+                                            </button>
+                                        </form>
+                                    @endcan
+                                </div>
+                            </div>
+                        @endforeach
+                    </div>
+                </div>
+            @endif
+
+            {{-- Current Members --}}
+            <div class="bg-white overflow-hidden shadow-sm sm:rounded-lg">
+                <div class="p-6 border-b border-gray-200">
+                    <h3 class="text-lg font-medium text-gray-900">Team Members ({{ $members->count() }})</h3>
+                </div>
+                <div class="divide-y divide-gray-200">
+                    @foreach($members as $member)
+                        <div class="p-4 flex items-center justify-between">
+                            <div class="flex-1">
+                                <div class="font-medium text-gray-900">
+                                    {{ $member->name }}
+                                    @if($member->id === auth()->id())
+                                        <span class="text-sm text-gray-500">(you)</span>
+                                    @endif
+                                </div>
+                                <div class="text-sm text-gray-500">{{ $member->email }}</div>
+                                <div class="text-xs text-gray-400 mt-1">
+                                    Joined {{ $member->pivot->created_at->diffForHumans() }}
+                                </div>
+                            </div>
+                            <div class="flex items-center gap-3">
+                                @can('manageMembers', $project)
+                                    @if($member->id !== auth()->id())
+                                        <form method="POST" action="{{ route('projects.members.update-role', [$project, $member]) }}" class="inline">
+                                            @csrf
+                                            @method('PATCH')
+                                            <select
+                                                name="role"
+                                                class="text-sm border-gray-300 rounded-md"
+                                                onchange="this.form.submit()"
+                                            >
+                                                <option value="member" {{ $member->pivot->role === 'member' ? 'selected' : '' }}>Member</option>
+                                                <option value="admin" {{ $member->pivot->role === 'admin' ? 'selected' : '' }}>Admin</option>
+                                                <option value="owner" {{ $member->pivot->role === 'owner' ? 'selected' : '' }}>Owner</option>
+                                            </select>
+                                        </form>
+                                    @else
+                                        <span class="inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium bg-gray-100 text-gray-800">
+                                            {{ ucfirst($member->pivot->role) }}
+                                        </span>
+                                    @endif
+                                @else
+                                    <span class="inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium bg-gray-100 text-gray-800">
+                                        {{ ucfirst($member->pivot->role) }}
+                                    </span>
+                                @endcan
+
+                                @can('manageMembers', $project)
+                                    @if($member->id !== auth()->id())
+                                        <form method="POST" action="{{ route('projects.members.destroy', [$project, $member]) }}" class="inline">
+                                            @csrf
+                                            @method('DELETE')
+                                            <button
+                                                type="submit"
+                                                class="text-sm text-red-600 hover:text-red-800"
+                                                onclick="return confirm('Remove {{ $member->name }} from this project?')"
+                                            >
+                                                Remove
+                                            </button>
+                                        </form>
+                                    @endif
+                                @endcan
+                            </div>
+                        </div>
+                    @endforeach
+                </div>
+            </div>
+
+            {{-- Role Descriptions --}}
+            <div class="bg-blue-50 border border-blue-200 rounded-lg p-4">
+                <h4 class="font-medium text-blue-900 mb-2">Permission Levels</h4>
+                <dl class="text-sm space-y-1">
+                    <dt class="font-medium text-blue-800">Owner</dt>
+                    <dd class="text-blue-700 ml-4">Full access including project deletion</dd>
+
+                    <dt class="font-medium text-blue-800 mt-2">Admin</dt>
+                    <dd class="text-blue-700 ml-4">Manage team members, project settings, and all issues</dd>
+
+                    <dt class="font-medium text-blue-800 mt-2">Member</dt>
+                    <dd class="text-blue-700 ml-4">View and manage issues and events</dd>
+                </dl>
+            </div>
+
+        </div>
+    </div>
+</x-app-layout>
diff --git a/resources/views/projects/settings.blade.php b/resources/views/projects/settings.blade.php
index 43f117e..c8e8aab 100644
--- a/resources/views/projects/settings.blade.php
+++ b/resources/views/projects/settings.blade.php
@@ -36,9 +36,10 @@
             </div>
 
             {{-- Update Project --}}
-            <div class="bg-white overflow-hidden shadow-sm sm:rounded-lg p-6">
-                <h3 class="text-lg font-medium text-gray-900 mb-4">Project Details</h3>
-                <form method="POST" action="{{ route('projects.update', $project) }}" class="space-y-6">
+            @can('update', $project)
+                <div class="bg-white overflow-hidden shadow-sm sm:rounded-lg p-6">
+                    <h3 class="text-lg font-medium text-gray-900 mb-4">Project Details</h3>
+                    <form method="POST" action="{{ route('projects.update', $project) }}" class="space-y-6">
                     @csrf
                     @method('PATCH')
 
@@ -62,9 +63,11 @@
                     <x-primary-button>Save Changes</x-primary-button>
                 </form>
             </div>
+            @endcan
 
             {{-- Delete Project --}}
-            <div class="bg-white overflow-hidden shadow-sm sm:rounded-lg p-6">
+            @can('delete', $project)
+                <div class="bg-white overflow-hidden shadow-sm sm:rounded-lg p-6">
                 <h3 class="text-lg font-medium text-red-600 mb-2">Danger Zone</h3>
                 <p class="text-sm text-gray-500 mb-4">Deleting a project will permanently remove all its issues and events.</p>
                 <form method="POST" action="{{ route('projects.destroy', $project) }}"
@@ -74,6 +77,7 @@
                     <x-danger-button>Delete Project</x-danger-button>
                 </form>
             </div>
+            @endcan
 
         </div>
     </div>
diff --git a/routes/web.php b/routes/web.php
index b56b259..2ca2549 100644
--- a/routes/web.php
+++ b/routes/web.php
@@ -7,12 +7,17 @@ use App\Http\Controllers\IssueController;
 use App\Http\Controllers\NotificationController;
 use App\Http\Controllers\ProfileController;
 use App\Http\Controllers\ProjectController;
+use App\Http\Controllers\ProjectMemberController;
 use Illuminate\Support\Facades\Route;
 
 Route::get('/', function () {
     return view('welcome');
 });
 
+Route::middleware('auth')->group(function () {
+    Route::get('/invitations/{token}/accept', [ProjectMemberController::class, 'acceptInvitation'])->name('invitations.accept');
+});
+
 Route::middleware(['auth', 'verified'])->group(function () {
     Route::get('/dashboard', DashboardController::class)->name('dashboard');
 
@@ -35,6 +40,12 @@ Route::middleware(['auth', 'verified'])->group(function () {
     Route::patch('/projects/{project}/alerts', [AlertRuleController::class, 'update'])->name('projects.alerts.update');
     Route::patch('/projects/{project}/alerts/preference', [AlertRuleController::class, 'updatePreference'])->name('projects.alerts.preference');
 
+    Route::get('/projects/{project}/members', [ProjectMemberController::class, 'index'])->name('projects.members.index');
+    Route::post('/projects/{project}/members/invite', [ProjectMemberController::class, 'invite'])->name('projects.members.invite');
+    Route::patch('/projects/{project}/members/{user}/role', [ProjectMemberController::class, 'updateRole'])->name('projects.members.update-role');
+    Route::delete('/projects/{project}/members/{user}', [ProjectMemberController::class, 'destroy'])->name('projects.members.destroy');
+    Route::delete('/projects/{project}/invitations/{invitation}', [ProjectMemberController::class, 'cancelInvitation'])->name('projects.members.cancel-invitation');
+
     Route::get('/notifications', [NotificationController::class, 'index'])->name('notifications.index');
     Route::get('/notifications/{id}/read', [NotificationController::class, 'markAsRead'])->name('notifications.read');
     Route::post('/notifications/mark-all-read', [NotificationController::class, 'markAllAsRead'])->name('notifications.mark-all-read');