diff --git a/src/components/ActualsDialog.tsx b/src/components/ActualsDialog.tsx
index 6befa61..d0b117e 100644
--- a/src/components/ActualsDialog.tsx
+++ b/src/components/ActualsDialog.tsx
@@ -43,6 +43,7 @@ export function ActualsDialog({
   planName,
   scenarioMetas,
   initial,
+  embedded = false,
   onClose,
   onChanged,
 }: {
@@ -52,6 +53,9 @@ export function ActualsDialog({
   scenarioMetas: { id: string; name: string; isBase: boolean }[];
   // Das bereits geöffnete Szenario, damit der Dialog sofort etwas anzeigen kann.
   initial: LoadedScenario;
+  // Eingebettet in den Hauptbereich (Plan-Ansicht) statt als Pop-up -- ohne Overlay,
+  // ohne Backdrop, ohne Schliessen-Knopf.
+  embedded?: boolean;
   onClose: () => void;
   onChanged: () => void;
 }) {
@@ -252,9 +256,8 @@ export function ActualsDialog({
   const setRow = (rootId: string, patch: { value?: number; mortgage?: number }) =>
     setValues((prev) => ({ ...prev, [rootId]: { ...prev[rootId], ...patch } }));
 
-  return (
-    <div className="ui-fade fixed inset-0 z-40 flex items-start justify-center overflow-y-auto bg-black/40 px-4 py-8" onClick={onClose}>
-      <div onClick={(e) => e.stopPropagation()} className="ui-pop flex w-full max-w-4xl flex-col gap-4 rounded-2xl border border-border bg-surface p-6 shadow-xl">
+  const body = (
+    <>
         <div className="flex items-start justify-between gap-3">
           <div>
             <h2 className="flex items-center gap-2 text-base font-semibold text-fg">
@@ -264,9 +267,11 @@ export function ActualsDialog({
               Plan «{planName}». Was tatsächlich eingetreten ist – der Plan selbst bleibt unverändert.
             </p>
           </div>
-          <button type="button" onClick={onClose} aria-label="Schliessen" className="rounded-md p-1 text-faint hover:bg-surface-2">
-            <X className="h-4 w-4" />
-          </button>
+          {!embedded && (
+            <button type="button" onClick={onClose} aria-label="Schliessen" className="rounded-md p-1 text-faint hover:bg-surface-2">
+              <X className="h-4 w-4" />
+            </button>
+          )}
         </div>
 
         {mode === "list" && (
@@ -435,6 +440,17 @@ export function ActualsDialog({
             </div>
           </>
         )}
+    </>
+  );
+
+  // Eingebettet: schlichter Container im Hauptbereich. Sonst: Pop-up mit Overlay.
+  if (embedded) {
+    return <div className="flex flex-col gap-4">{body}</div>;
+  }
+  return (
+    <div className="ui-fade fixed inset-0 z-40 flex items-start justify-center overflow-y-auto bg-black/40 px-4 py-8" onClick={onClose}>
+      <div onClick={(e) => e.stopPropagation()} className="ui-pop flex w-full max-w-4xl flex-col gap-4 rounded-2xl border border-border bg-surface p-6 shadow-xl">
+        {body}
       </div>
     </div>
   );
diff --git a/src/components/AppShell.tsx b/src/components/AppShell.tsx
index 165964b..266197a 100644
--- a/src/components/AppShell.tsx
+++ b/src/components/AppShell.tsx
@@ -105,7 +105,7 @@ function AppShellInner({ username }: { username: string }) {
   const [showHistory, setShowHistory] = useState(false);
   const [showActuals, setShowActuals] = useState(false);
   // Plan-Ebene: Dashboard / Szenarien-Liste / Analysen. Null = kein Plan-View aktiv.
-  const [planNav, setPlanNav] = useState<{ planId: string; tab: "dashboard" | "scenarios" | "analyses" } | null>(null);
+  const [planNav, setPlanNav] = useState<{ planId: string; tab: "dashboard" | "scenarios" | "actuals" | "analyses" } | null>(null);
   // Welche Szenario-Bäume in der Seitenleiste aufgeklappt sind. Standard: eingeklappt.
   const [expandedTrees, setExpandedTrees] = useState<Record<string, boolean>>({});
   const [savedAnalysisId, setSavedAnalysisId] = useState<string | null>(null);
@@ -182,7 +182,7 @@ function AppShellInner({ username }: { username: string }) {
 
   // Plan-Ebene öffnen (Dashboard / Szenarien / Analysen). Räumt die Szenario- und Wissens-
   // Ansichten weg -- es kann immer nur eine Hauptansicht aktiv sein.
-  function openPlanTab(planId: string, tab: "dashboard" | "scenarios" | "analyses") {
+  function openPlanTab(planId: string, tab: "dashboard" | "scenarios" | "actuals" | "analyses") {
     setPlanNav({ planId, tab });
     setSelectedScenarioId(null);
     setShowSpec(false);
@@ -204,13 +204,13 @@ function AppShellInner({ username }: { username: string }) {
     else setShowLiveSim(true);
   }
 
-  // Effektive Werte von der Plan-Ebene aus öffnen (braucht das Basisszenario geladen).
-  async function openActualsForPlan(planId: string) {
+  // Effektive-Werte-Ansicht (Plan-Ebene, eingebettet). Lädt das Basisszenario, das der
+  // eingebettete Dialog als Ausgangspunkt braucht, und öffnet dann den Tab.
+  async function openActualsTab(planId: string) {
     const plan = plans.find((p) => p.id === planId);
     const baseId = plan?.scenarios.find((s) => s.isBase)?.id ?? plan?.scenarios[0]?.id;
-    if (!baseId) return;
-    if (detail?.meta.id !== baseId) await loadDetail(baseId, true);
-    setShowActuals(true);
+    if (baseId && detail?.meta.id !== baseId) await loadDetail(baseId, true);
+    openPlanTab(planId, "actuals");
   }
 
   async function handleDeletePlan(id: string) {
@@ -347,7 +347,7 @@ function AppShellInner({ username }: { username: string }) {
 
         {plans.map((p) => {
           const navHere = planNav?.planId === p.id;
-          const subItem = (tab: "dashboard" | "scenarios" | "analyses", label: string, Icon: typeof FolderKanban) => (
+          const subItem = (tab: "dashboard" | "scenarios" | "actuals" | "analyses", label: string, Icon: typeof FolderKanban) => (
             <button
               type="button"
               onClick={() => openPlanTab(p.id, tab)}
@@ -418,8 +418,10 @@ function AppShellInner({ username }: { username: string }) {
               )}
               <button
                 type="button"
-                onClick={() => openActualsForPlan(p.id)}
-                className="flex w-full items-center gap-2 rounded-lg py-1.5 pl-8 pr-3 text-left text-xs font-medium text-muted transition-colors hover:bg-surface-2"
+                onClick={() => void openActualsTab(p.id)}
+                className={`flex w-full items-center gap-2 rounded-lg py-1.5 pl-8 pr-3 text-left text-xs font-medium transition-colors ${
+                  navHere && planNav?.tab === "actuals" ? "bg-accent-soft text-accent-soft-fg" : "text-muted hover:bg-surface-2"
+                }`}
               >
                 <CalendarClock className="h-3.5 w-3.5 shrink-0" />
                 Effektive Werte
@@ -540,6 +542,23 @@ function AppShellInner({ username }: { username: string }) {
               }}
             />
           )}
+          {!showSpec && !showSystemParams && planNav?.tab === "actuals" && activePlan && (
+            detail && detail.meta.planId === planNav.planId ? (
+              <ActualsDialog
+                key={planNav.planId}
+                embedded
+                planId={planNav.planId}
+                planName={activePlan.name}
+                scenarioMetas={activePlan.scenarios}
+                initial={{ id: detail.meta.id, name: detail.meta.name, isBase: detail.meta.isBase, plan: detail.plan }}
+                onClose={() => {}}
+                onChanged={refreshCurrent}
+              />
+            ) : (
+              <p className="text-sm text-muted">Wird geladen…</p>
+            )
+          )}
+
           {!showSpec && !showSystemParams && planNav?.tab === "analyses" && (
             <AnalysesView
               planId={planNav.planId}