diff --git a/admin/api/export-stories.php b/admin/api/export-stories.php
index 866e30d..3817083 100644
--- a/admin/api/export-stories.php
+++ b/admin/api/export-stories.php
@@ -37,18 +37,32 @@ try {
         $storyDir = $tempDir . '/' . $storyId;
         mkdir($storyDir);
         mkdir($storyDir . '/images');
+        mkdir($storyDir . '/chapter_covers');
 
-        // Copier l'image de couverture si elle existe
+        // Copier l'image de couverture du roman si elle existe
         if (!empty($story['cover'])) {
             $coverPath = __DIR__ . '/../../' . $story['cover'];
             if (file_exists($coverPath)) {
-                copy($coverPath, $storyDir . '/cover' . pathinfo($coverPath, PATHINFO_EXTENSION));
-                $story['cover'] = 'cover' . pathinfo($coverPath, PATHINFO_EXTENSION);
+                $extension = '.' . pathinfo($coverPath, PATHINFO_EXTENSION);
+                copy($coverPath, $storyDir . '/cover' . $extension);
+                $story['cover'] = 'cover' . $extension;
             }
         }
 
         // Extraire et copier les images des chapitres
         foreach ($story['chapters'] as &$chapter) {
+            // Gestion des images de couverture des chapitres
+            if (!empty($chapter['cover'])) {
+                $chapterCoverPath = __DIR__ . '/../../' . $chapter['cover'];
+                if (file_exists($chapterCoverPath)) {
+                    $extension = '.' . pathinfo($chapterCoverPath, PATHINFO_EXTENSION);
+                    $newCoverName = 'chapter_' . $chapter['id'] . '_cover' . $extension;
+                    copy($chapterCoverPath, $storyDir . '/chapter_covers/' . $newCoverName);
+                    $chapter['cover'] = 'chapter_covers/' . $newCoverName;
+                }
+            }
+
+            // Gestion du contenu et des images intégrées
             if (!empty($chapter['content'])) {
                 $content = $chapter['content'];
                 if (is_string($content) && isJson($content)) {
@@ -62,7 +76,8 @@ try {
                             $imgUrl = $op['insert']['image'];
                             $imgPath = __DIR__ . '/../../' . preg_replace('/^(?:\.\.\/)+/', '', $imgUrl);
                             if (file_exists($imgPath)) {
-                                $newImgName = 'image_' . uniqid() . pathinfo($imgPath, PATHINFO_EXTENSION);
+                                $extension = '.' . pathinfo($imgPath, PATHINFO_EXTENSION);
+                                $newImgName = 'image_' . uniqid() . $extension;
                                 copy($imgPath, $storyDir . '/images/' . $newImgName);
                                 $op['insert']['image'] = 'images/' . $newImgName;
                             }
diff --git a/admin/api/import-stories.php b/admin/api/import-stories.php
index 099b570..24c635b 100644
--- a/admin/api/import-stories.php
+++ b/admin/api/import-stories.php
@@ -66,25 +66,65 @@ try {
                 continue;
             }
 
-            // Créer les dossiers nécessaires
-            $coverDir = __DIR__ . '/../../assets/images/covers/';
-            $chaptersImgDir = __DIR__ . '/../../assets/images/chapters/' . $storyId;
+            // Créer les dossiers nécessaires avec les permissions correctes
+            $baseDir = __DIR__ . '/../../';
+            $coverDir = $baseDir . 'assets/images/covers';
+            $chaptersImgDir = $baseDir . 'assets/images/chapters/' . $storyId;
+            $chaptersCoverDir = $baseDir . 'assets/images/chapters/' . $storyId . '/covers';
             
-            if (!file_exists($coverDir)) mkdir($coverDir, 0755, true);
-            if (!file_exists($chaptersImgDir)) mkdir($chaptersImgDir, 0755, true);
+            foreach ([$coverDir, $chaptersImgDir, $chaptersCoverDir] as $dir) {
+                if (!file_exists($dir)) {
+                    if (!mkdir($dir, 0777, true)) {
+                        throw new Exception("Impossible de créer le dossier: $dir");
+                    }
+                    chmod($dir, 0777);
+                }
+            }
 
-            // Gérer l'image de couverture
+            // Gérer l'image de couverture du roman
             if (!empty($story['cover'])) {
                 $coverFile = $storyDir . '/' . $story['cover'];
                 if (file_exists($coverFile)) {
-                    $newCoverPath = 'assets/images/covers/' . $storyId . '.' . pathinfo($coverFile, PATHINFO_EXTENSION);
-                    copy($coverFile, __DIR__ . '/../../' . $newCoverPath);
-                    $story['cover'] = $newCoverPath;
+                    // Extraire l'extension correctement
+                    $originalName = basename($coverFile);
+                    if (preg_match('/\.([^.]+)$/', $originalName, $matches)) {
+                        $extension = $matches[1];
+                        $newCoverPath = 'assets/images/covers/' . $storyId . '.' . $extension;
+                        $targetPath = $baseDir . $newCoverPath;
+                        
+                        if (!copy($coverFile, $targetPath)) {
+                            throw new Exception("Impossible de copier la couverture du roman");
+                        }
+                        chmod($targetPath, 0777);
+                        $story['cover'] = $newCoverPath;
+                    }
                 }
             }
 
             // Gérer les images des chapitres
             foreach ($story['chapters'] as &$chapter) {
+                // Gérer les images de couverture des chapitres
+                if (!empty($chapter['cover'])) {
+                    $chapterCoverFile = $storyDir . '/' . $chapter['cover'];
+                    if (file_exists($chapterCoverFile)) {
+                        // Extraire l'extension correctement
+                        $originalName = basename($chapterCoverFile);
+                        if (preg_match('/\.([^.]+)$/', $originalName, $matches)) {
+                            $extension = $matches[1];
+                            $newChapterCoverName = $chapter['id'] . '-cover.' . $extension;
+                            $newChapterCoverPath = 'assets/images/chapters/' . $storyId . '/covers/' . $newChapterCoverName;
+                            $targetPath = $baseDir . $newChapterCoverPath;
+                            
+                            if (!copy($chapterCoverFile, $targetPath)) {
+                                throw new Exception("Impossible de copier la couverture du chapitre");
+                            }
+                            chmod($targetPath, 0777);
+                            $chapter['cover'] = $newChapterCoverPath;
+                        }
+                    }
+                }
+
+                // Gérer le contenu et les images intégrées
                 if (!empty($chapter['content'])) {
                     $content = $chapter['content'];
                     if (is_string($content) && isJson($content)) {
@@ -96,9 +136,18 @@ try {
                             if (is_array($op['insert']) && isset($op['insert']['image'])) {
                                 $imgPath = $storyDir . '/' . $op['insert']['image'];
                                 if (file_exists($imgPath)) {
-                                    $newImgName = 'image_' . uniqid() . '.' . pathinfo($imgPath, PATHINFO_EXTENSION);
-                                    copy($imgPath, $chaptersImgDir . '/' . $newImgName);
-                                    $op['insert']['image'] = 'assets/images/chapters/' . $storyId . '/' . $newImgName;
+                                    $originalName = basename($imgPath);
+                                    if (preg_match('/\.([^.]+)$/', $originalName, $matches)) {
+                                        $extension = $matches[1];
+                                        $newImgName = 'image_' . uniqid() . '.' . $extension;
+                                        $targetPath = $chaptersImgDir . '/' . $newImgName;
+                                        
+                                        if (!copy($imgPath, $targetPath)) {
+                                            throw new Exception("Impossible de copier l'image intégrée");
+                                        }
+                                        chmod($targetPath, 0777);
+                                        $op['insert']['image'] = 'assets/images/chapters/' . $storyId . '/' . $newImgName;
+                                    }
                                 }
                             }
                         }
@@ -108,10 +157,14 @@ try {
             }
 
             // Sauvegarder le roman
-            Stories::save($story);
+            if (!Stories::save($story)) {
+                throw new Exception("Erreur lors de la sauvegarde de {$story['title']}");
+            }
             $importedCount++;
 
         } catch (Exception $e) {
+            error_log("Erreur d'import pour {$storyInfo['title']}: " . $e->getMessage());
+            error_log("Trace complète: " . print_r($e->getTraceAsString(), true));
             $errors[] = "Erreur pour {$storyInfo['title']}: " . $e->getMessage();
         }
     }
@@ -140,6 +193,9 @@ try {
     exit;
 
 } catch (Exception $e) {
+    error_log("Erreur générale d'import: " . $e->getMessage());
+    error_log("Trace complète: " . print_r($e->getTraceAsString(), true));
+    
     if (isset($tempDir) && file_exists($tempDir)) {
         deleteDir($tempDir);
     }