diff --git a/app/src/main/kotlin/dev/privacyllc/period/navigation/PeriodApp.kt b/app/src/main/kotlin/dev/privacyllc/period/navigation/PeriodApp.kt
index 7b1d9d1..3180598 100644
--- a/app/src/main/kotlin/dev/privacyllc/period/navigation/PeriodApp.kt
+++ b/app/src/main/kotlin/dev/privacyllc/period/navigation/PeriodApp.kt
@@ -17,6 +17,7 @@ import androidx.compose.material3.NavigationBar
 import androidx.compose.material3.NavigationBarItem
 import androidx.compose.material3.Scaffold
 import androidx.compose.material3.Text
+import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
 import androidx.compose.ui.Alignment
@@ -107,7 +108,21 @@ fun PeriodApp() {
                             }
                         },
                         icon = { Icon(destination.icon, contentDescription = null) },
-                        label = { Text(stringResource(destination.labelRes)) },
+                        // maxLines and ellipsis, because at the largest
+                        // accessibility font scale these labels do not fit and
+                        // Compose's default is to wrap them mid-word: the tab
+                        // bar reads "Calenda / r" and "Setting / s". Found by
+                        // setting font_scale to 2.0 on a device, which nothing
+                        // in the build does. Ellipsis degrades to "Calend…",
+                        // which is still a word somebody can recognise, and the
+                        // icon above it carries the meaning anyway.
+                        label = {
+                            Text(
+                                stringResource(destination.labelRes),
+                                maxLines = 1,
+                                overflow = TextOverflow.Ellipsis,
+                            )
+                        },
                     )
                 }
             }
diff --git a/docs/qa/ClaudeQACoverage.md b/docs/qa/ClaudeQACoverage.md
index 2e00bef..f8ab565 100644
--- a/docs/qa/ClaudeQACoverage.md
+++ b/docs/qa/ClaudeQACoverage.md
@@ -153,8 +153,18 @@ existing is not a failure; it not existing while the gaps do is.
   were checked by reading the view hierarchy, which proves they exist and not
   that they make sense in sequence. Pass G is not complete until somebody
   navigates a screen with their eyes shut.
-- **Font scaling untried.** The hero number is 72sp; at the largest accessibility
-  scale it may not fit beside anything.
+- **~~Font scaling untried~~ — done on 2026-08-18, and it found one defect.**
+  Driven at `font_scale` 1.3 and 2.0 on `PeriodMinSdk26`, through onboarding to
+  Today. The hero number survives: at 2.0 the "14" and its labels still fit, and
+  Today scrolls so nothing below is lost. Every onboarding step survives too,
+  including the two carrying three buttons or three option cards under an
+  illustration — their art is deliberately 104 dp where the others take 120–128.
+  **The bottom navigation bar did not.** With no `maxLines`, Compose wrapped the
+  labels mid-word at 2.0: the tab bar read *"Calenda / r"* and *"Setting / s"*.
+  Fixed in `PeriodApp.kt` with `maxLines = 1` and an ellipsis, which degrades to
+  "Calen…" — still recognisable, and the icon above carries the meaning. What is
+  still unreached: font scaling has only been driven in light mode, and only on
+  a phone-sized screen.
 - **~~No device at `minSdk`~~ — partly closed on 2026-08-18 at `0d280d5`.** The
   app has now been built, installed and driven on `PeriodMinSdk26`, an API 26
   emulator: onboarding start to first forecast, the Material 3 date picker,