diff --git a/assests/img/error403.jpg b/assests/img/error403.jpg
new file mode 100644
index 0000000..ddb9376
Binary files /dev/null and b/assests/img/error403.jpg differ
diff --git a/assests/img/error404.webp b/assests/img/error404.webp
new file mode 100644
index 0000000..1fb29eb
Binary files /dev/null and b/assests/img/error404.webp differ
diff --git a/controllers/admin_controller.php b/controllers/admin_controller.php
index 5fd9e56..b98252b 100644
--- a/controllers/admin_controller.php
+++ b/controllers/admin_controller.php
@@ -25,7 +25,6 @@
 				header("Location:index.php?ctrl=error&action=error_403");
 				exit;
 			}
-            var_dump($_SESSION);
 
             //gestion de l'user
             $objCategoryModel = new CategoryModel;
@@ -44,6 +43,7 @@
                 $editCat->setId($_POST['id_to_edit']);
                 $editCat->setName($_POST['new_name']);
                 $objCategoryModel->editCategory($editCat);
+                $_SESSION['success'] = "La catégorie a bien été modifiée";
                 header('Location: index.php?ctrl=admin&action=admin');
                 exit;
             }
diff --git a/controllers/error_controller.php b/controllers/error_controller.php
new file mode 100644
index 0000000..4ebead6
--- /dev/null
+++ b/controllers/error_controller.php
@@ -0,0 +1,24 @@
+<?php
+	require("mother_controller.php");
+
+	/** 
+	* Le contrôleur des erreurs
+	* @author Laura (largement inspiré de Christel)
+	*/
+	class ErrorCtrl extends MotherCtrl{
+		
+		/**
+		* Page erreur 404
+		*/
+		public function error_404(){
+			$this->_display("error_404");
+		}
+		
+		/**
+		* Page erreur 403
+		*/
+		public function error_403(){
+			$this->_display("error_403");
+		}
+		
+	}
\ No newline at end of file
diff --git a/index.php b/index.php
index 320007f..4013681 100644
--- a/index.php
+++ b/index.php
@@ -12,7 +12,7 @@
 
     $boolError   = false;
     $strFileName = "./controllers/".$strCtrl."_controller.php";
-   
+
     if(file_exists($strFileName)){
         require($strFileName);
         $strClassName = ucfirst($strCtrl)."Ctrl";
@@ -31,6 +31,6 @@
     }
 
     if($boolError){
-        echo "error 404 - la page elle existe pas ";
+        header("Location:index.php?ctrl=error&action=error_404");
     }
 
diff --git a/views/_partial/preview.tpl b/views/_partial/preview.tpl
index 82de7b3..128d866 100644
--- a/views/_partial/preview.tpl
+++ b/views/_partial/preview.tpl
@@ -3,21 +3,24 @@
         
         {* IMAGE (partie supérieure - plus grande) *}
         <div class="ratio ratio-4x3">
-            <img src="{$smarty.env.IMG_PROJECT_PATH}{$objProject->getThumbnail()}"
+            <a href="index.php?ctrl=project&action=display&id={$objProject->getId()}"></a>
+            <img src=".{$objProject->getThumbnail()}"
                  class="w-100 h-100 object-fit-cover"
                  alt=""
                  loading="lazy">
+                 </a>
         </div>
         
         {* CONTENU (photo profil + infos) *}
         <div class="card-body p-3 bg-light">
             <div class="d-flex align-items-start gap-3">
                 {* PHOTO DE PROFIL (cercle à gauche - plus grand) *}
+                <a href="index.php?ctrl=user&action=user&id={$objProject->getUser_id()}">
                 <img src="{$smarty.env.IMG_USER_PATH}{$objProject->getUser_image() ?? "images.jpg"}"
      				class="rounded-circle flex-shrink-0 border border-2 border-white"
      				style="width: 64px; height: 64px; object-fit: cover; margin-top: 8px;"
      				alt="Photo de profil">
-                
+                </a>
                 {* INFOS À DROITE *}
                 <div class="flex-grow-1">
                     <h3 class="h6 fw-bold mb-2 mt-1">{$objProject->getTitle()}</h3>
diff --git a/views/admin.tpl b/views/admin.tpl
index 640702a..12fc5f0 100644
--- a/views/admin.tpl
+++ b/views/admin.tpl
@@ -13,9 +13,6 @@
                 <h2>Gestion de l'utilsateur</h2>
                 <p>Changer le statut ou supprimer un utilisateur</p>
                     <div class="row">
-                        <div class="col-2">
-                            <img src="./assests/img/Logo-Wordmark.svg" alt="" width="100"> 
-                        </div>
                         <form method="POST">
                             <div class="col-6">
                                 <select class="form-select" aria-label="Default select example" name="user_id">
@@ -24,6 +21,7 @@
                                         <option value="{$user->getId()}">{$user->getName()} {$user->getFirstname()}</option>
                                     {/foreach}
                                 </select>
+                                <br>
                                 <select class="form-select" aria-label="Default select example" name="new_status">
                                     <option value="0" selected>Modifier le statut de  l'Utilisateur...</option>
                                     {foreach from=$arrAuthorisationToDisplay item=arrDetAuthorisation}
@@ -31,6 +29,7 @@
                                     {/foreach}
                                 </select>
                             </div>
+                            <br>
                             <div class="col-2">
                                 <button type="submit" name="action" value="update_status" class="btn bg-success text-light"> Valider</button>
                                 <button type="submit" name="action" value="delete_user" class="btn bg-danger text-light" onclick="return confirm('Attention ! Êtes-vous sûr de vouloir supprimer cet utilisateur ? Cette action est irréversible.');">Supprimer l'utilisateur</button>
@@ -63,7 +62,6 @@
                             <div>
                         </div>
                         <br>
-                        <br>
                         <div class="row">
                                 <!-- creation cat-->
                             <div class="col-6">
diff --git a/views/error_403.tpl b/views/error_403.tpl
new file mode 100644
index 0000000..071b883
--- /dev/null
+++ b/views/error_403.tpl
@@ -0,0 +1,9 @@
+{extends file="views/layout.tpl"}
+
+{block name="content"}
+    <div class="text-center">
+        <h1 class="display-1">Erreur 403</h1>
+        <h2 class="display-3">Vous n'êtes pas autorisé à accéder à cette page !</h2>
+        <img class="img-fluid" src="assests/img/error403.jpg">
+    </div>
+{/block}
\ No newline at end of file
diff --git a/views/error_404.tpl b/views/error_404.tpl
new file mode 100644
index 0000000..bdc92c7
--- /dev/null
+++ b/views/error_404.tpl
@@ -0,0 +1,9 @@
+{extends file="views/layout.tpl"}
+
+{block name="content"}
+    <div class="text-center">
+        <h1 class="display-1">Erreur 404</h1>
+        <h2 class="display-3">Cette page n'existe pas !</h2>
+        <img class="img-fluid" src="assests/img/error404.webp">
+    </div>
+{/block}
\ No newline at end of file