diff --git a/app/src/main/kotlin/io/flamenet/messenger/app/MainActivity.kt b/app/src/main/kotlin/io/flamenet/messenger/app/MainActivity.kt
index 4d76c92..2364bf2 100644
--- a/app/src/main/kotlin/io/flamenet/messenger/app/MainActivity.kt
+++ b/app/src/main/kotlin/io/flamenet/messenger/app/MainActivity.kt
@@ -95,11 +95,38 @@ private fun Root(model: MessengerViewModel = viewModel()) {
                     if (chat != null) {
                         ChatScreen(model, chat, current.error, current.buddies)
                     } else {
-                        when (current.screen) {
-                            MessengerViewModel.Phase.Screen.CONTACTS -> SignedIn(model, current)
-                            MessengerViewModel.Phase.Screen.NOTIFICATIONS ->
-                                NotificationsScreen(model, current)
-                            MessengerViewModel.Phase.Screen.ACCOUNT -> AccountScreen(model, current)
+                        // 🔴 **The content area is weighted, and the tab bar is
+                        // not.** These used to be plain siblings, so the tab bar
+                        // sat immediately under whatever the screen had drawn:
+                        // near the TOP of an empty Alerts tab, and pushed clean
+                        // OFF the bottom by the Account tab, which is taller
+                        // than the screen. Account also could not scroll, so the
+                        // sign-out explanation was unreadable and there was no
+                        // way back to another tab.
+                        //
+                        // ⚠️ Only the screens WITHOUT a lazy list may scroll.
+                        // Contacts owns a LazyColumn, and a lazy list inside a
+                        // vertically scrolling Column is measured with infinite
+                        // height and crashes outright.
+                        Column(
+                            modifier = Modifier
+                                .weight(1f)
+                                .then(
+                                    if (current.screen == MessengerViewModel.Phase.Screen.CONTACTS) {
+                                        Modifier
+                                    } else {
+                                        Modifier.verticalScroll(rememberScrollState())
+                                    }
+                                ),
+                            verticalArrangement = Arrangement.spacedBy(12.dp),
+                        ) {
+                            when (current.screen) {
+                                MessengerViewModel.Phase.Screen.CONTACTS -> SignedIn(model, current)
+                                MessengerViewModel.Phase.Screen.NOTIFICATIONS ->
+                                    NotificationsScreen(model, current)
+                                MessengerViewModel.Phase.Screen.ACCOUNT ->
+                                    AccountScreen(model, current)
+                            }
                         }
                         BottomNav(model, current)
                     }