diff --git a/apps/main/src/pages/tablo-details.tsx b/apps/main/src/pages/tablo-details.tsx
index 06915e3..68e6a25 100644
--- a/apps/main/src/pages/tablo-details.tsx
+++ b/apps/main/src/pages/tablo-details.tsx
@@ -29,7 +29,7 @@ import { TabloDiscussionSection } from "../components/TabloDiscussionSection";
 import { TabloEventsSection } from "../components/TabloEventsSection";
 import { TabloFilesSection } from "../components/TabloFilesSection";
 import { TabloTasksSection } from "../components/TabloTasksSection";
-import { useAllTasks, useTabloEtapes } from "../hooks/tasks";
+import { useAllTasks, useCreateTask, useTabloEtapes } from "../hooks/tasks";
 import { useTabloFileNames } from "../hooks/tablo_data";
 import { useTablosList } from "../hooks/tablos";
 
@@ -459,7 +459,7 @@ export const TabloDetailsPage = () => {
         )}
 
         {activeSection === "etapes" && (
-          <EtapesSection etapes={etapes} tabloTasks={tabloTasks} />
+          <EtapesSection etapes={etapes} tabloTasks={tabloTasks} tabloId={tabloId ?? ""} />
         )}
       </div>
     </div>
@@ -471,13 +471,18 @@ export const TabloDetailsPage = () => {
 function EtapesSection({
   etapes,
   tabloTasks,
+  tabloId,
 }: {
   etapes: Etape[];
   tabloTasks: KanbanTask[];
+  tabloId: string;
 }) {
   const [expandedEtapes, setExpandedEtapes] = useState<Set<string>>(
     new Set(etapes.map((e) => e.id)),
   );
+  const [addingTaskToEtape, setAddingTaskToEtape] = useState<string | null>(null);
+  const [newTaskTitle, setNewTaskTitle] = useState("");
+  const { mutate: createTask } = useCreateTask();
 
   const toggleEtape = (id: string) => {
     setExpandedEtapes((prev) => {
@@ -488,6 +493,21 @@ function EtapesSection({
     });
   };
 
+  const handleAddTask = (etapeId: string) => {
+    const title = newTaskTitle.trim();
+    if (!title || !tabloId) return;
+    createTask({
+      tablo_id: tabloId,
+      title,
+      status: "todo",
+      parent_task_id: etapeId,
+      is_parent: false,
+      position: tabloTasks.filter((t) => t.parent_task_id === etapeId).length,
+    });
+    setNewTaskTitle("");
+    setAddingTaskToEtape(null);
+  };
+
   const statusConfig: Record<string, { label: string; color: string }> = {
     todo: { label: "À faire", color: "bg-blue-100 text-blue-700 dark:bg-blue-950/30 dark:text-blue-400" },
     in_progress: { label: "En cours", color: "bg-yellow-100 text-yellow-700 dark:bg-yellow-950/30 dark:text-yellow-400" },
@@ -575,40 +595,87 @@ function EtapesSection({
               )}
             </button>
 
-            {/* Child tasks */}
-            {isExpanded && childTasks.length > 0 && (
-              <div className="border-t border-gray-100 dark:border-gray-700 divide-y divide-gray-100 dark:divide-gray-700">
-                {childTasks.map((task) => (
-                  <div
-                    key={task.id}
-                    className="flex items-center gap-3 px-5 py-3 pl-16 hover:bg-gray-50 dark:hover:bg-gray-800 transition-colors"
-                  >
-                    {task.status === "done" ? (
-                      <CircleCheckIcon className="w-4 h-4 text-green-500 shrink-0" />
-                    ) : (
-                      <div className="w-4 h-4 rounded-full border-2 border-gray-300 dark:border-gray-600 shrink-0" />
-                    )}
-                    <span
-                      className={cn(
-                        "text-sm flex-1 truncate",
-                        task.status === "done" ? "line-through text-gray-400" : "text-gray-900 dark:text-gray-100",
-                      )}
-                    >
-                      {task.title}
-                    </span>
-                    {task.status && (
-                      <span className={cn("px-2 py-0.5 rounded-full text-[10px] font-medium shrink-0", (statusConfig[task.status] ?? statusConfig.todo).color)}>
-                        {(statusConfig[task.status] ?? statusConfig.todo).label}
-                      </span>
-                    )}
+            {/* Child tasks + add task */}
+            {isExpanded && (
+              <div className="border-t border-gray-100 dark:border-gray-700">
+                {childTasks.length > 0 && (
+                  <div className="divide-y divide-gray-100 dark:divide-gray-700">
+                    {childTasks.map((task) => (
+                      <div
+                        key={task.id}
+                        className="flex items-center gap-3 px-5 py-3 pl-16 hover:bg-gray-50 dark:hover:bg-gray-800 transition-colors"
+                      >
+                        {task.status === "done" ? (
+                          <CircleCheckIcon className="w-4 h-4 text-green-500 shrink-0" />
+                        ) : (
+                          <div className="w-4 h-4 rounded-full border-2 border-gray-300 dark:border-gray-600 shrink-0" />
+                        )}
+                        <span
+                          className={cn(
+                            "text-sm flex-1 truncate",
+                            task.status === "done" ? "line-through text-gray-400" : "text-gray-900 dark:text-gray-100",
+                          )}
+                        >
+                          {task.title}
+                        </span>
+                        {task.status && (
+                          <span className={cn("px-2 py-0.5 rounded-full text-[10px] font-medium shrink-0", (statusConfig[task.status] ?? statusConfig.todo).color)}>
+                            {(statusConfig[task.status] ?? statusConfig.todo).label}
+                          </span>
+                        )}
+                      </div>
+                    ))}
                   </div>
-                ))}
-              </div>
-            )}
+                )}
 
-            {isExpanded && childTasks.length === 0 && (
-              <div className="border-t border-gray-100 dark:border-gray-700 px-5 py-4 pl-16 text-sm text-muted-foreground">
-                Aucune tâche dans cette étape
+                {childTasks.length === 0 && addingTaskToEtape !== etape.id && (
+                  <div className="px-5 py-4 pl-16 text-sm text-muted-foreground">
+                    Aucune tâche dans cette étape
+                  </div>
+                )}
+
+                {/* Inline add task */}
+                {addingTaskToEtape === etape.id ? (
+                  <div className="flex items-center gap-2 px-5 py-3 pl-16 border-t border-gray-100 dark:border-gray-700">
+                    <div className="w-4 h-4 rounded-full border-2 border-gray-300 dark:border-gray-600 shrink-0" />
+                    <input
+                      autoFocus
+                      type="text"
+                      value={newTaskTitle}
+                      onChange={(e) => setNewTaskTitle(e.target.value)}
+                      onKeyDown={(e) => {
+                        if (e.key === "Enter") handleAddTask(etape.id);
+                        if (e.key === "Escape") { setAddingTaskToEtape(null); setNewTaskTitle(""); }
+                      }}
+                      placeholder="Nom de la tâche..."
+                      className="flex-1 text-sm bg-transparent border-none outline-none text-gray-900 dark:text-gray-100 placeholder-gray-400"
+                    />
+                    <button
+                      type="button"
+                      onClick={() => handleAddTask(etape.id)}
+                      disabled={!newTaskTitle.trim()}
+                      className="text-xs font-medium px-3 py-1 rounded-md bg-[#804EEC] text-white hover:bg-[#6f3fd4] disabled:opacity-40 transition-colors"
+                    >
+                      Ajouter
+                    </button>
+                    <button
+                      type="button"
+                      onClick={() => { setAddingTaskToEtape(null); setNewTaskTitle(""); }}
+                      className="text-xs text-muted-foreground hover:text-foreground px-2 py-1"
+                    >
+                      Annuler
+                    </button>
+                  </div>
+                ) : (
+                  <button
+                    type="button"
+                    onClick={(e) => { e.stopPropagation(); setAddingTaskToEtape(etape.id); setNewTaskTitle(""); }}
+                    className="flex items-center gap-2 px-5 py-2.5 pl-16 text-sm text-muted-foreground hover:text-[#804EEC] hover:bg-gray-50 dark:hover:bg-gray-800 transition-colors w-full text-left border-t border-gray-100 dark:border-gray-700"
+                  >
+                    <PlusIcon className="w-4 h-4" />
+                    Ajouter une tâche
+                  </button>
+                )}
               </div>
             )}
           </div>