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diff --git a/config/__pycache__/settings.cpython-311.pyc b/config/__pycache__/settings.cpython-311.pyc
index 5be02db..6af46a9 100644
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diff --git a/config/settings.py b/config/settings.py
index 291d043..7b411d2 100644
--- a/config/settings.py
+++ b/config/settings.py
@@ -180,3 +180,8 @@ if EMAIL_USE_SSL:
 # https://docs.djangoproject.com/en/5.2/ref/settings/#default-auto-field
 
 DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'
+
+LOGIN_URL = 'login'
+LOGIN_REDIRECT_URL = 'index'
+LOGOUT_REDIRECT_URL = 'index'
+
diff --git a/core/__pycache__/urls.cpython-311.pyc b/core/__pycache__/urls.cpython-311.pyc
index fca779b..3288f3f 100644
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diff --git a/core/__pycache__/views.cpython-311.pyc b/core/__pycache__/views.cpython-311.pyc
index e9ce815..2632719 100644
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diff --git a/core/templates/base.html b/core/templates/base.html
index eaa5ae1..2782043 100644
--- a/core/templates/base.html
+++ b/core/templates/base.html
@@ -36,6 +36,15 @@
           <li><a href="#"><i data-feather="users"></i> Clients</a></li>
           <li><a href="#"><i data-feather="settings"></i> Settings</a></li>
         </ul>
+        <ul class="auth-nav">
+          {% if user.is_authenticated %}
+            <li><a href="{% url 'logout' %}"><i data-feather="log-out"></i> Logout</a></li>
+          {% else %}
+            <li><a href="{% url 'login' %}"><i data-feather="log-in"></i> Login</a></li>
+            <li><a href="{% url 'register' %}"><i data-feather="user-plus"></i> Register</a></li>
+          {% endif %}
+        </ul>
+        </ul>
       </nav>
     </div>
     <div class="main-content">
diff --git a/core/templates/base_public.html b/core/templates/base_public.html
new file mode 100644
index 0000000..36ea136
--- /dev/null
+++ b/core/templates/base_public.html
@@ -0,0 +1,45 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+  <meta charset="UTF-8">
+  <title>{% block title %}webFirma{% endblock %}</title>
+  {% if project_description %}
+  <meta name="description" content="{{ project_description }}">
+  <meta property="og:description" content="{{ project_description }}">
+  <meta property="twitter:description" content="{{ project_description }}">
+  {% endif %}
+  {% if project_image_url %}
+  <meta property="og:image" content="{{ project_image_url }}">
+  <meta property="twitter:image" content="{{ project_image_url }}">
+  {% endif %}
+  {% load static %}
+  <link rel="preconnect" href="https://fonts.googleapis.com">
+  <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
+  <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap" rel="stylesheet">
+  <link rel="stylesheet" href="{% static 'css/custom.css' %}?v={{ deployment_timestamp }}">
+  <script src="https://unpkg.com/feather-icons"></script>
+  {% block head %}{% endblock %}
+</head>
+
+<body>
+  <div class="public-layout">
+    <header class="public-header">
+      <div class="logo">
+        <h2>webFirma</h2>
+      </div>
+      <div class="public-actions">
+        <a href="{% url 'login' %}" class="btn">Login</a>
+        <a href="{% url 'register' %}" class="btn btn-primary">Register</a>
+      </div>
+    </header>
+    <main class="public-content">
+      {% block content %}{% endblock %}
+    </main>
+  </div>
+  <script>
+    feather.replace()
+  </script>
+</body>
+
+</html>
diff --git a/core/templates/core/edit_project.html b/core/templates/core/edit_project.html
new file mode 100644
index 0000000..b874bee
--- /dev/null
+++ b/core/templates/core/edit_project.html
@@ -0,0 +1,22 @@
+{% extends 'base.html' %}
+{% load static %}
+
+{% block title %}Edytuj Projekt - webFirma{% endblock %}
+
+{% block content %}
+<div class="main-header">
+  <h1>Edytuj Projekt</h1>
+</div>
+
+<div class="content-grid">
+  <div class="project-card">
+    <div class="card-body">
+      <form method="post">
+        {% csrf_token %}
+        {{ form.as_p }}
+        <button type="submit" class="btn btn-primary">Zapisz zmiany</button>
+      </form>
+    </div>
+  </div>
+</div>
+{% endblock %}
diff --git a/core/templates/core/index.html b/core/templates/core/index.html
index b778504..62d9de6 100644
--- a/core/templates/core/index.html
+++ b/core/templates/core/index.html
@@ -11,7 +11,9 @@
         <i data-feather="search"></i>
         <input type="text" placeholder="Search projects...">
     </div>
+    {% if user.is_authenticated %}
     <a href="{% url 'add_project' %}" class="btn btn-primary"><i data-feather="plus"></i> Dodaj projekt</a>
+    {% endif %}
   </div>
 </div>
 
@@ -37,7 +39,10 @@
                             <img src="https://i.pravatar.cc/32?u=c" alt="Avatar">
                         </div>
                     </div>
-                    <a href="#" class="btn-view">Zobacz projekt</a>
+                    {% if user.is_authenticated %}
+                    <a href="{% url 'edit_project' project.id %}" class="btn-view">Edit</a>
+                    <a href="{% url 'delete_project' project.id %}" class="btn-view">Delete</a>
+                    {% endif %}
                 </div>
             </div>
         {% endfor %}
diff --git a/core/templates/core/landing.html b/core/templates/core/landing.html
new file mode 100644
index 0000000..ba9811d
--- /dev/null
+++ b/core/templates/core/landing.html
@@ -0,0 +1,14 @@
+{% extends 'base_public.html' %}
+{% load static %}
+
+{% block title %}Welcome to webFirma{% endblock %}
+
+{% block content %}
+<div class="landing-page">
+  <div class="hero">
+    <h1>Zarządzaj swoimi projektami</h1>
+    <p>webFirma to proste i intuicyjne narzędzie do zarządzania projektami, fakturami i klientami.</p>
+    <a href="{% url 'register' %}" class="btn btn-primary btn-lg">Zacznij za darmo</a>
+  </div>
+</div>
+{% endblock %}
diff --git a/core/templates/core/login.html b/core/templates/core/login.html
new file mode 100644
index 0000000..4ea024b
--- /dev/null
+++ b/core/templates/core/login.html
@@ -0,0 +1,14 @@
+{% extends 'base_public.html' %}
+
+{% block title %}Login - webFirma{% endblock %}
+
+{% block content %}
+<div class="container">
+    <h2>Login</h2>
+    <form method="post">
+        {% csrf_token %}
+        {{ form.as_p }}
+        <button type="submit" class="btn btn-primary">Login</button>
+    </form>
+</div>
+{% endblock %}
diff --git a/core/templates/core/register.html b/core/templates/core/register.html
new file mode 100644
index 0000000..b5985e5
--- /dev/null
+++ b/core/templates/core/register.html
@@ -0,0 +1,14 @@
+{% extends 'base_public.html' %}
+
+{% block title %}Register - webFirma{% endblock %}
+
+{% block content %}
+<div class="container">
+    <h2>Register</h2>
+    <form method="post">
+        {% csrf_token %}
+        {{ form.as_p }}
+        <button type="submit" class="btn btn-primary">Register</button>
+    </form>
+</div>
+{% endblock %}
diff --git a/core/urls.py b/core/urls.py
index ffbdf8e..4f9b4a5 100644
--- a/core/urls.py
+++ b/core/urls.py
@@ -1,7 +1,13 @@
 from django.urls import path
-from .views import index, add_project
+from .views import index, add_project, register, edit_project, delete_project
+from django.contrib.auth.views import LoginView, LogoutView
 
 urlpatterns = [
     path('', index, name='index'),
     path('add-project/', add_project, name='add_project'),
+    path('register/', register, name='register'),
+    path('login/', LoginView.as_view(template_name='core/login.html'), name='login'),
+    path('logout/', LogoutView.as_view(), name='logout'),
+    path('edit-project/<int:project_id>/', edit_project, name='edit_project'),
+    path('delete-project/<int:project_id>/', delete_project, name='delete_project'),
 ]
\ No newline at end of file
diff --git a/core/views.py b/core/views.py
index 0bb211f..938380d 100644
--- a/core/views.py
+++ b/core/views.py
@@ -1,11 +1,19 @@
-from django.shortcuts import render, redirect
+from django.shortcuts import render, redirect, get_object_or_404
+from django.contrib.auth import login
+from django.contrib.auth.decorators import login_required
+from django.contrib.auth.forms import UserCreationForm
+from django.contrib.auth.views import LoginView, LogoutView
 from .models import Project
 from .forms import ProjectForm
 
 def index(request):
-    projects = Project.objects.all().order_by('-start_date')
-    return render(request, 'core/index.html', {'projects': projects})
+    if request.user.is_authenticated:
+        projects = Project.objects.all().order_by('-start_date')
+        return render(request, 'core/index.html', {'projects': projects})
+    else:
+        return render(request, 'core/landing.html')
 
+@login_required
 def add_project(request):
     if request.method == 'POST':
         form = ProjectForm(request.POST)
@@ -14,4 +22,33 @@ def add_project(request):
             return redirect('index')
     else:
         form = ProjectForm()
-    return render(request, 'core/add_project.html', {'form': form})
\ No newline at end of file
+    return render(request, 'core/add_project.html', {'form': form})
+
+@login_required
+def edit_project(request, project_id):
+    project = get_object_or_404(Project, pk=project_id)
+    if request.method == 'POST':
+        form = ProjectForm(request.POST, instance=project)
+        if form.is_valid():
+            form.save()
+            return redirect('index')
+    else:
+        form = ProjectForm(instance=project)
+    return render(request, 'core/edit_project.html', {'form': form, 'project': project})
+
+@login_required
+def delete_project(request, project_id):
+    project = get_object_or_404(Project, pk=project_id)
+    project.delete()
+    return redirect('index')
+
+def register(request):
+    if request.method == 'POST':
+        form = UserCreationForm(request.POST)
+        if form.is_valid():
+            user = form.save()
+            login(request, user)
+            return redirect('index')
+    else:
+        form = UserCreationForm()
+    return render(request, 'core/register.html', {'form': form})
\ No newline at end of file
diff --git a/static/css/custom.css b/static/css/custom.css
index 0bb9cc6..813ba97 100644
--- a/static/css/custom.css
+++ b/static/css/custom.css
@@ -33,6 +33,16 @@ body {
     flex-direction: column;
 }
 
+.sidebar-nav {
+    flex-grow: 1;
+}
+
+.auth-nav {
+    list-style: none;
+    padding: 0;
+    margin: 0;
+}
+
 .sidebar-header h2 {
     font-weight: 700;
     color: var(--primary-dark);
@@ -251,4 +261,62 @@ body {
 .empty-state p {
     color: var(--dark-grey);
     margin-bottom: 24px;
+}
+
+/* Public Layout */
+.public-layout {
+    display: flex;
+    flex-direction: column;
+    min-height: 100vh;
+}
+
+.public-header {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    padding: 24px 48px;
+    border-bottom: 1px solid var(--medium-grey);
+}
+
+.public-header .logo h2 {
+    font-weight: 700;
+    color: var(--primary-dark);
+    margin: 0;
+    font-size: 24px;
+}
+
+.public-actions .btn {
+    text-decoration: none;
+    font-weight: 600;
+    margin-left: 16px;
+}
+
+.public-content {
+    flex-grow: 1;
+    display: flex;
+    justify-content: center;
+    align-items: center;
+}
+
+/* Landing Page */
+.landing-page .hero {
+    text-align: center;
+}
+
+.landing-page .hero h1 {
+    font-size: 48px;
+    font-weight: 700;
+    color: var(--primary-dark);
+    margin-bottom: 16px;
+}
+
+.landing-page .hero p {
+    font-size: 18px;
+    color: var(--dark-grey);
+    margin-bottom: 32px;
+}
+
+.btn-lg {
+    padding: 14px 28px;
+    font-size: 16px;
 }
\ No newline at end of file
diff --git a/staticfiles/css/custom.css b/staticfiles/css/custom.css
index 0bb9cc6..813ba97 100644
--- a/staticfiles/css/custom.css
+++ b/staticfiles/css/custom.css
@@ -33,6 +33,16 @@ body {
     flex-direction: column;
 }
 
+.sidebar-nav {
+    flex-grow: 1;
+}
+
+.auth-nav {
+    list-style: none;
+    padding: 0;
+    margin: 0;
+}
+
 .sidebar-header h2 {
     font-weight: 700;
     color: var(--primary-dark);
@@ -251,4 +261,62 @@ body {
 .empty-state p {
     color: var(--dark-grey);
     margin-bottom: 24px;
+}
+
+/* Public Layout */
+.public-layout {
+    display: flex;
+    flex-direction: column;
+    min-height: 100vh;
+}
+
+.public-header {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    padding: 24px 48px;
+    border-bottom: 1px solid var(--medium-grey);
+}
+
+.public-header .logo h2 {
+    font-weight: 700;
+    color: var(--primary-dark);
+    margin: 0;
+    font-size: 24px;
+}
+
+.public-actions .btn {
+    text-decoration: none;
+    font-weight: 600;
+    margin-left: 16px;
+}
+
+.public-content {
+    flex-grow: 1;
+    display: flex;
+    justify-content: center;
+    align-items: center;
+}
+
+/* Landing Page */
+.landing-page .hero {
+    text-align: center;
+}
+
+.landing-page .hero h1 {
+    font-size: 48px;
+    font-weight: 700;
+    color: var(--primary-dark);
+    margin-bottom: 16px;
+}
+
+.landing-page .hero p {
+    font-size: 18px;
+    color: var(--dark-grey);
+    margin-bottom: 32px;
+}
+
+.btn-lg {
+    padding: 14px 28px;
+    font-size: 16px;
 }
\ No newline at end of file
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