diff --git a/config/packages/security.yaml b/config/packages/security.yaml
index dbb930a..8186fa5 100644
--- a/config/packages/security.yaml
+++ b/config/packages/security.yaml
@@ -30,6 +30,10 @@ security:
                 check_path: users_login
             logout:
                 path: users_logout
+            json_login:
+                check_path: api_users_login
+                username_path: email
+                password_path: password
 
     # Easy way to control access for large sections of your site
     # Note: Only the *first* access control that matches will be used
diff --git a/public/scripts/chart_loader.js b/public/scripts/chart_loader.js
index 0f748c2..be20f88 100644
--- a/public/scripts/chart_loader.js
+++ b/public/scripts/chart_loader.js
@@ -166,10 +166,14 @@ class ChartLoader {
             let tooltipPos = obj[0].getTooltipPos()
 
             // Adjust tooltip position to fit within the chart div
-            if (tooltipPos.right.x + this.tooltip.clientWidth <= this.parent.clientWidth - 2)
+            if (tooltipPos.right.x + this.tooltip.clientWidth <= this.parent.clientWidth - 2) {
+                this.tooltip.className = "tooltip leftArrow"
                 this.tooltip.style.left = tooltipPos.right.x + 5 + "px"
-            else
+            }
+            else {
+                this.tooltip.className = "tooltip rightArrow"
                 this.tooltip.style.left = tooltipPos.left.x - this.tooltip.clientWidth + "px"
+            }
 
             // Check if the tooltip extends beyond the bottom edge of the chart div
             if (tooltipPos.right.y + this.tooltip.clientHeight <= parent.clientHeight - 2)
diff --git a/public/scripts/charts/primitives.js b/public/scripts/charts/primitives.js
index 21430ac..aa35ad2 100644
--- a/public/scripts/charts/primitives.js
+++ b/public/scripts/charts/primitives.js
@@ -214,9 +214,14 @@ class PieSlice extends Circle {
      * @returns {Object} An object containing x and y coordinates for the tooltip position.
      */
     getTooltipPos() {
+        let angle = (this.sAngle + this.eAngle) / 2
+        let pos = {
+            x: this.x + Math.cos(angle) * this.r,
+            y: this.y + Math.sin(angle) * this.r
+        }
         return {
-            right: this.getCenter(),
-            left: this.getCenter()
+            right: pos,
+            left: pos
         }
     }
 }
diff --git a/public/styles/chart_style.css b/public/styles/chart_style.css
index 44291f8..a1bd24b 100644
--- a/public/styles/chart_style.css
+++ b/public/styles/chart_style.css
@@ -48,8 +48,8 @@ body {
 /* Styles for legend items */
 #chartLegend div {
     display: inline;
-    margin: 0 10px 0 10px; /* Spacing between legend items */
-    width: 50px;
+    margin: 0 1rem 0 1rem; /* Spacing between legend items */
+    width: 5rem;
 }
 
 /* Styles for the tooltip */
@@ -59,8 +59,9 @@ body {
     background-color: white;
     border: 1px solid grey;
     text-align: center;
-    padding: 5px;
-    border-radius: 3px;
+    padding: 0.5rem;
+    border-radius: 0.1rem;
+    /*box-shadow: 0.2rem 0.2rem 0.2rem lightgrey;*/
     z-index: 1; /* Ensure tooltip appears above other elements */
 }
 
@@ -76,7 +77,7 @@ body {
 }
 
 /* Styles for tooltip arrow */
-#tooltip::after {
+.leftArrow::after {
     content: ""; /* Create a pseudo-element */
     position: absolute; /* Position relative to its containing block */
     top: 50%; /* Position vertically centered */
@@ -85,4 +86,15 @@ body {
     border-width: 0.5rem; /* Size of the arrow */
     border-style: solid; /* Solid border */
     border-color: transparent white transparent transparent; /* Arrow color */
+}
+
+.rightArrow::before {
+    content: ""; /* Create a pseudo-element */
+    position: absolute; /* Position relative to its containing block */
+    top: 50%; /* Position vertically centered */
+    left: 100%; /* Position to the left of the tooltip */
+    margin-top: -0.5rem; /* Adjust vertical position */
+    border-width: 0.5rem; /* Size of the arrow */
+    border-style: solid; /* Solid border */
+    border-color: transparent transparent transparent white; /* Arrow color */
 }
\ No newline at end of file
diff --git a/public/styles/edit_chart.css b/public/styles/edit_chart.css
index c562c75..a2157d3 100755
--- a/public/styles/edit_chart.css
+++ b/public/styles/edit_chart.css
@@ -25,6 +25,7 @@ main form {
     text-align: center;
     overflow: scroll;
     flex-basis: 25%;
+    margin-right: 0.5rem;
 }
 
 #settings_div h1{
@@ -172,28 +173,26 @@ div[id^="chart_metadata_group"] {
 }
 
 /* Media query for smaller screens */
-@media (max-width: 950px) {
+@media (max-width: 760px) {
     #mainDiv {
-        display: block
+        flex-direction: column-reverse;
     }
 
     #chartDiv {
-        width: 100%;
+        width: auto;
+        flex-basis: 60%;
     }
 
     #settings_div {
-        width: 100%;
-        display: block
+        margin-top: 1rem;
+        width: auto;
+        flex-basis: 40%;
     }
 
     #tableDiv {
         width: 100%
     }
 
-    #shareDiv {
-        width: 100%
-    }
-
     #secondaryDiv {
         display: block
     }
diff --git a/public/styles/web_style.css b/public/styles/web_style.css
index 3164043..d9b64c5 100755
--- a/public/styles/web_style.css
+++ b/public/styles/web_style.css
@@ -17,16 +17,21 @@ body {
     padding: 0;
 }
 
-button, #createChart {
+button,
+#createChart {
     background-color: var(--main-dark);
     border: none;
     color: white;
-    padding: 10px 15px;
+    padding: 1rem 1.5rem;
     text-align: center;
     text-decoration: none;
     display: inline-block;
-    font-size: 16px;
-    margin: 5px;
+    margin: 0.3rem;
+    font-size: 1rem;
+}
+
+#createChart {
+    font-size: 1.5rem;
 }
 
 button:hover {
@@ -52,7 +57,8 @@ header nav {
     justify-content: flex-end;
 }
 
-header #homepageLink:hover, header #chartsLink:hover {
+header #homepageLink:hover,
+header #chartsLink:hover {
     background-color: var(--main-highlight);
 }
 
@@ -123,7 +129,8 @@ h2 {
     flex-direction: column;
 }
 
-.loginDiv #user div, .loginDiv form > div {
+.loginDiv #user div,
+.loginDiv form>div {
     width: auto;
     display: flex;
     flex-direction: column;
@@ -133,10 +140,27 @@ h2 {
     color: red;
 }
 
-.loginDiv #logoutBtn {
+.loginDiv #logoutBtn,
+#deleteBtn {
     color: red;
 }
 
+#accountButtonsDiv {
+    height: 6rem;
+    display: flex;
+    flex-direction: column;
+    justify-content: flex-end;
+}
+
+#logoutBtn {
+    margin-bottom: 2rem;
+}
+
+#logoutBtn:hover,
+#deleteBtn:hover {
+    color: darkred;
+}
+
 #myCharts {
     height: 100%;
     width: 100%;
@@ -162,7 +186,7 @@ h2 {
     flex-direction: column;
 }
 
-#myChartList span{
+#myChartList span {
     width: 80%;
     margin: 10px 10%;
     /*border: 1px solid var(--main-dark);*/
@@ -170,7 +194,7 @@ h2 {
     display: flex;
 }
 
-#myChartList span a{
+#myChartList span a {
     text-decoration: none;
     display: inline-block;
     height: 100%;
@@ -187,7 +211,7 @@ h2 {
     background-color: var(--main-highlight);
 }
 
-#myChartList #removeChart{
+#myChartList #removeChart {
     color: red;
     display: inline-block;
     text-align: middle;
@@ -195,8 +219,8 @@ h2 {
     transition: 300ms;
 }
 
-#myChartList #removeChart:hover{
+#myChartList #removeChart:hover {
     background-color: var(--main-highlight);
     color: red;
     transition: 300ms;
-}
+}
\ No newline at end of file
diff --git a/src/Api/Controller/ChartRestController.php b/src/Api/Controller/ChartRestController.php
index f9e6f9a..2d7ed8f 100644
--- a/src/Api/Controller/ChartRestController.php
+++ b/src/Api/Controller/ChartRestController.php
@@ -11,30 +11,27 @@ use FOS\RestBundle\Controller\Annotations as Rest;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
 
-#[Rest\Route(path: '/api/charts', name: 'api_charts')]
+#[Rest\Route(path: '/api/charts', name: 'api_charts_')]
 class ChartRestController extends AbstractRestController
 {
 
-    #[Rest\Get('/', name: '_list')]
+    #[Rest\Get('/', name: 'list')]
     public function list(DocumentManager $dm, Request $request) : Response
     {
-        $charts = \array_map(fn(Chart $entity) => ChartOutput::fromEntity($entity)->id,  $dm->getRepository(Chart::class)->findAll());
+        $charts = \array_map(fn(Chart $entity) => ChartOutput::fromEntity($entity)->id, iterator_to_array($this->getUser()->getCharts()));
         return $this->respond($charts, Response::HTTP_OK);
     }
 
-    #[Rest\Get('/{id}', name: '_detail')]//, requirements: ['id' => '\d+'])]
+    #[Rest\Get('/{id}', name: 'detail')]
     public function detail(DocumentManager $dm, Chart $chart): Response
     {
-        //$chart = $this->findOrFail($dm, $id);
-
         $chartDto = ChartOutput::fromEntity($chart);
         return $this->respond( $chartDto, Response::HTTP_OK);
     }
 
-    #[Rest\Put('/insert', name: '_insert')]
+    #[Rest\Post('/insert', name: 'insert')]
     public function insert(DocumentManager $dm, Request $request): Response
     {
-        //$chart = $newChart->toEntity();
         $data = json_decode($request->getContent());
         $chart = new Chart();
         $chart->setName($data->name);
@@ -46,15 +43,25 @@ class ChartRestController extends AbstractRestController
         return $this->respond( $chart->getName(), Response::HTTP_OK);
     }
 
-    /*private function findOrFail(DocumentManager $dm, int $id): Chart
+    #[Rest\Post('/{id}/update', name: 'update')]
+    public function update(DocumentManager $dm, Request $request, Chart $chart): Response
     {
-        //$chart = $dm->getRepository(Chart::class)->findOneBy(['code' => $id]);
-        $chart = $dm->getRepository(Chart::class)->findOneBy(['_id' => $id]);
+        $data = json_decode($request->getContent());
+        $chart->setName($data->name);
+        $chart->setMetadata($data->metadata);
+        $chart->setTable($data->table);
+
+        $dm->persist($chart);
+        $dm->flush();
+        return $this->respond( $chart->getName(), Response::HTTP_OK);
+    }
 
-        if ($chart === null) {
-            throw $this->createNotFoundException("Chart was not found");
-        }
+    #[Rest\Delete('/{id}/remove', name:'remove')]
+    public function remove(DocumentManager $dm, Request $request, Chart $chart): Response
+    {
+        $dm->remove($chart);
+        $dm->flush();
 
-        return $chart ;
-    }*/
+        return $this->respond( $chart->getName(), Response::HTTP_OK);
+    }
 }
\ No newline at end of file
diff --git a/src/Api/Controller/UserRestController.php b/src/Api/Controller/UserRestController.php
new file mode 100644
index 0000000..aed7a26
--- /dev/null
+++ b/src/Api/Controller/UserRestController.php
@@ -0,0 +1,23 @@
+<?php
+
+namespace App\Api\Controller;
+
+use App\Document\User;
+use Doctrine\ODM\MongoDB\DocumentManager;
+use App\Api\Controller\AbstractRestController;
+use FOS\RestBundle\Controller\Annotations as Rest;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\Security\Http\Attribute\CurrentUser;
+
+#[Rest\Route(path: '/api/users', name: 'api_users_')]
+class UserRestController extends AbstractRestController
+{
+    #[Rest\Post('/login', name: 'login')]
+    public function login(DocumentManager $dm, #[CurrentUser] ?User $user): Response
+    {
+        return $this->json([
+            'user' => $user ? $user->getId() : null,
+        ]);
+    }
+}
\ No newline at end of file
diff --git a/src/Controller/ChartController.php b/src/Controller/ChartController.php
index cab716d..93bb751 100644
--- a/src/Controller/ChartController.php
+++ b/src/Controller/ChartController.php
@@ -4,6 +4,7 @@ namespace App\Controller;
 
 use App\Document\Chart;
 use App\Form\Type\ChartType;
+use App\Form\Type\DeleteType;
 use Doctrine\ODM\MongoDB\DocumentManager;
 use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
 use Symfony\Component\HttpFoundation\Response;
@@ -63,11 +64,22 @@ class ChartController extends AbstractController
     }
 
     #[Route('/{id}/remove', name: 'remove')]
-    public function removeAction(DocumentManager $dm, Chart $chart) : Response
+    public function removeAction(DocumentManager $dm, Request $request, Chart $chart) : Response
     {
-        $dm->remove($chart);
-        //$this->getUser()->removeChart($chart);
-        $dm->flush();
-        return $this->redirectToRoute('charts_list');
+        $form = $this->createForm(DeleteType::class, $chart);
+        $form->handleRequest($request);
+
+        if ($form->isSubmitted() && $form->isValid()) {
+            $dm->remove($chart);
+            //$this->getUser()->removeChart($chart);
+            $dm->flush();
+
+            return $this->redirectToRoute('charts_list');
+        }
+
+        return $this->render('chart/remove.html.twig', [
+            'form' =>$form->createView(),
+            'entity' => $chart
+        ]);
     }
 }
diff --git a/src/Controller/IndexController.php b/src/Controller/IndexController.php
index b229695..5206202 100644
--- a/src/Controller/IndexController.php
+++ b/src/Controller/IndexController.php
@@ -14,4 +14,9 @@ class IndexController extends AbstractController
         return $this->render('index.html.twig');
     }
 
+    #[Route('/docs', name: 'docs')]
+    public function docsAction(): Response
+    {
+        return $this->render('docs.html.twig');
+    }
 }
\ No newline at end of file
diff --git a/src/Controller/UserController.php b/src/Controller/UserController.php
index 341d03c..fb1a94f 100644
--- a/src/Controller/UserController.php
+++ b/src/Controller/UserController.php
@@ -5,6 +5,7 @@ namespace App\Controller;
 use App\Document\User;
 use App\Form\Type\UserType;
 use App\Form\Type\LoginType;
+use App\Form\Type\DeleteType;
 use Doctrine\ODM\MongoDB\DocumentManager;
 use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
 use Symfony\Component\Security\Core\Authentication\Token\UsernamePasswordToken;
@@ -30,6 +31,9 @@ class UserController extends AbstractController
         if ($form->isSubmitted() && $form->isValid()) {
             $user = $form->getData();
 
+            if ($dm->getRepository(User::class)->findOneBy(['email'=> $user->getEmail()]))
+                throw $this->createAccessDeniedException('Email již někdo používá');
+
             $hashedPassword = $passwordHasher->hashPassword($user, $user->getPassword());
             $user->setPassword($hashedPassword);
 
@@ -83,4 +87,24 @@ class UserController extends AbstractController
             'form' => $form->createView()
         ]);
     }
+
+    #[Route('/{id}/remove', name: 'remove')]
+    public function removeAction(DocumentManager $dm, Request $request, User $user) : Response
+    {
+        $form = $this->createForm(DeleteType::class, $user);
+        $form->handleRequest($request);
+
+        if ($form->isSubmitted() && $form->isValid()) {
+            $user->getCharts()->clear();
+            $dm->remove($user);
+            $dm->flush();
+
+            return $this->redirectToRoute('userss_list');
+        }
+
+        return $this->render('user/remove.html.twig', [
+            'form' =>$form->createView(),
+            'entity' => $user
+        ]);
+    }
 }
diff --git a/src/Form/Type/DeleteType.php b/src/Form/Type/DeleteType.php
new file mode 100644
index 0000000..e2b6be8
--- /dev/null
+++ b/src/Form/Type/DeleteType.php
@@ -0,0 +1,29 @@
+<?php
+namespace App\Form\Type;
+
+use Symfony\Component\Form\Extension\Core\Type\SubmitType;
+use Symfony\Component\Form\AbstractType;
+use Symfony\Component\Form\FormBuilderInterface;
+use Symfony\Component\OptionsResolver\OptionsResolver;
+use Symfony\Component\Validator\Constraints as Assert;
+
+class DeleteType extends AbstractType
+{
+    public function buildForm(FormBuilderInterface $builder, array $options)
+    {
+        $resolver = new OptionsResolver();
+        $this->configureOptions($resolver);
+
+        $builder
+            ->add('button', SubmitType::class, [
+                'label'=> 'Smazat',
+            ]);
+    }
+
+    public function configureOptions(OptionsResolver $resolver)
+    {
+        /*$resolver
+            ->setRequired('entity')
+            ->setAllowedTypes('entity', 'string');*/
+    }
+}
\ No newline at end of file
diff --git a/templates/bundles/TwigBundle/Exception/error.html.twig b/templates/bundles/TwigBundle/Exception/error.html.twig
index f73efff..be5ee53 100644
--- a/templates/bundles/TwigBundle/Exception/error.html.twig
+++ b/templates/bundles/TwigBundle/Exception/error.html.twig
@@ -117,6 +117,7 @@
 		<div id="logo">
 			<a href="/">EasyCharts</a>
 		</div>
+		<nav></nav>
 		<div id="user">
             <a href="/users/login">Přihlásit</a>
 		</div>
diff --git a/templates/chart/remove.html.twig b/templates/chart/remove.html.twig
new file mode 100644
index 0000000..e5e4ef0
--- /dev/null
+++ b/templates/chart/remove.html.twig
@@ -0,0 +1,16 @@
+{% extends 'base.html.twig' %}
+
+{% block title %}
+	Smazat graf
+{% endblock %}
+
+{% block body %}
+	{{ parent() }}
+	<main>
+		<div id="myCharts">
+			<h1>Smazání grafu</h1>
+			<p>Opravdu chcete smazat graf: {{ entity.name }} ?</p>
+            {{ form(form) }}
+		</div>
+	</main>
+{% endblock %}
diff --git a/templates/docs.html.twig b/templates/docs.html.twig
new file mode 100644
index 0000000..0e3d6a8
--- /dev/null
+++ b/templates/docs.html.twig
@@ -0,0 +1,16 @@
+{% extends 'base.html.twig' %}
+
+{% block title %}
+    Dokumentace
+{% endblock %}
+
+{% block body %}
+	{{ parent() }}
+    <h1>Interaktivní grafy</h1>
+    <section>
+        <p>
+            Lorem ipsum dolor sit amet consectetur adipisicing elit. Accusamus odio neque est voluptatum
+            repellat animi dicta aliquam ipsa culpa commodi.
+        </p>
+    </section>
+{% endblock %}
diff --git a/templates/header.html.twig b/templates/header.html.twig
index 0e38e7a..680dc83 100644
--- a/templates/header.html.twig
+++ b/templates/header.html.twig
@@ -3,7 +3,10 @@
 		<a href={{ path('homepage') }} id="homepageLink">Index</a>
 	</div>
 	<nav>
-		<a href={{ path('charts_list') }} id="chartsLink">Charts</a>
+		<a href={{ path('docs') }}>Dokumentace</a>
+		{% if app.user %}
+			<a href={{ path('charts_list') }} id="chartsLink">Moje grafy</a>
+		{% endif %}
 	</nav>
 	<div id="user">
 		{% if app.user %}
diff --git a/templates/index.html.twig b/templates/index.html.twig
index 7a36d6a..bf7bd36 100644
--- a/templates/index.html.twig
+++ b/templates/index.html.twig
@@ -1,7 +1,7 @@
 {% extends 'base.html.twig' %}
 
 {% block title %}
-    Home
+    Domovská stránka
 {% endblock %}
 
 {% block body %}
diff --git a/templates/user/edit.html.twig b/templates/user/edit.html.twig
index 81d3845..03fa052 100644
--- a/templates/user/edit.html.twig
+++ b/templates/user/edit.html.twig
@@ -14,7 +14,10 @@
 
 			<button type="submit">Změnit heslo</button>
 			{{ form_end(form, {'render_rest': false}) }}
-            <a id="logoutBtn" href="{{ path('users_logout') }}">Odhlásit se</a>
+			<div id="accountButtonsDiv">
+				<a id="logoutBtn" href="{{ path('users_logout') }}">Odhlásit se</a>
+				<a id="deleteBtn" href="{{ path('users_remove', {'id': app.user.id}) }}">Smazat uživatelský účet</a>
+			</div>
 		</div>
 	</main>
 {% endblock %}
diff --git a/templates/user/remove.html.twig b/templates/user/remove.html.twig
new file mode 100644
index 0000000..45213be
--- /dev/null
+++ b/templates/user/remove.html.twig
@@ -0,0 +1,16 @@
+{% extends 'base.html.twig' %}
+
+{% block title %}
+	Smazat uživatele
+{% endblock %}
+
+{% block body %}
+	{{ parent() }}
+	<main>
+		<div id="myCharts">
+			<h1>Smazání uživatelského účtu</h1>
+			<p>Opravdu chcete smazat účet: {{ entity.email }} ?</p>
+            {{ form(form) }}
+		</div>
+	</main>
+{% endblock %}