diff --git a/src/renderer.ts b/src/renderer.ts
index 3693e7c..58a584c 100644
--- a/src/renderer.ts
+++ b/src/renderer.ts
@@ -689,14 +689,28 @@ function showAppToast(message: string, type: 'info' | 'warn' = 'info'): void {
         toast = document.createElement('div');
         toast.id = 'appToast';
         toast.className = 'app-toast';
+        // Live region — screen readers announce the toast text whenever
+        // it changes. Warn toasts go through aria-live="assertive" so the
+        // reader interrupts whatever it was speaking; info toasts use
+        // "polite" so they wait for a natural break in current speech.
+        toast.setAttribute('role', 'status');
+        toast.setAttribute('aria-live', 'polite');
+        toast.setAttribute('aria-atomic', 'true');
         document.body.appendChild(toast);
     }
 
-    toast.textContent = message;
     toast.classList.remove('warn', 'show');
     if (type === 'warn') {
         toast.classList.add('warn');
+        toast.setAttribute('role', 'alert');
+        toast.setAttribute('aria-live', 'assertive');
+    } else {
+        toast.setAttribute('role', 'status');
+        toast.setAttribute('aria-live', 'polite');
     }
+    // Setting textContent AFTER the aria-live attribute is in place
+    // ensures the change is captured as a live-region update by AT.
+    toast.textContent = message;
 
     requestAnimationFrame(() => {
         toast?.classList.add('show');