diff --git a/electron/hudOverlayRecordingBounds.test.ts b/electron/hudOverlayRecordingBounds.test.ts
new file mode 100644
index 000000000..216c22d76
--- /dev/null
+++ b/electron/hudOverlayRecordingBounds.test.ts
@@ -0,0 +1,98 @@
+import { beforeEach, describe, expect, it, vi } from "vitest";
+
+// A recording-sized work area keeps the expected bounds easy to read: the
+// compact fallback window is 860x160 anchored to the bottom centre, while the
+// passthrough overlay covers the whole work area.
+const WORK_AREA = { x: 0, y: 0, width: 1920, height: 1080 };
+
+const setBounds = vi.fn();
+
+const electronScreen = {
+	getPrimaryDisplay: () => ({ workArea: WORK_AREA }),
+	getDisplayMatching: () => ({ workArea: WORK_AREA }),
+	getCursorScreenPoint: () => ({ x: 0, y: 0 }),
+	on: vi.fn(),
+	off: vi.fn(),
+	removeListener: vi.fn(),
+};
+
+// windows.ts reaches the screen module through createRequire("electron"), which
+// bypasses vi.mock("electron"), so the CJS require has to be mocked as well.
+vi.mock("node:module", async (importOriginal) => {
+	const actual = await importOriginal<typeof import("node:module")>();
+	return {
+		...actual,
+		default: actual,
+		createRequire: () => (id: string) => {
+			if (id === "electron") {
+				return { screen: electronScreen };
+			}
+			return actual.createRequire(import.meta.url)(id);
+		},
+	};
+});
+
+vi.mock("electron", () => {
+	class FakeBrowserWindow {
+		webContents = { send: vi.fn(), on: vi.fn(), setWindowOpenHandler: vi.fn() };
+		isDestroyed = () => false;
+		isVisible = () => true;
+		getBounds = () => WORK_AREA;
+		setBounds = setBounds;
+		setIgnoreMouseEvents = vi.fn();
+		setContentProtection = vi.fn();
+		setAlwaysOnTop = vi.fn();
+		showInactive = vi.fn();
+		show = vi.fn();
+		moveTop = vi.fn();
+		once = vi.fn();
+		on = vi.fn();
+		loadURL = vi.fn();
+		loadFile = vi.fn();
+	}
+
+	return {
+		app: {
+			getPath: () => "/tmp/recordly-test",
+			isPackaged: false,
+			isReady: () => true,
+			whenReady: vi.fn(),
+			on: vi.fn(),
+		},
+		BrowserWindow: FakeBrowserWindow,
+		ipcMain: { on: vi.fn(), handle: vi.fn() },
+		screen: electronScreen,
+	};
+});
+
+describe("HUD overlay bounds while recording", () => {
+	beforeEach(() => {
+		vi.resetModules();
+		setBounds.mockClear();
+	});
+
+	// Regression guard for the overlay swallowing clicks during a recording.
+	// getHudOverlayBounds() used to pass
+	// `isHudOverlayMousePassthroughSupported() && !hudOverlayRecordingActive`,
+	// so starting a recording dropped the HUD to the opaque 860x160 fallback
+	// window. Every click inside that region hit the overlay instead of the app
+	// being recorded, and the HUD's own Stop button became unreachable once the
+	// renderer asked for passthrough.
+	// Linux has no mouse passthrough, so the compact fallback window is the
+	// expected behaviour there and this guard does not apply.
+	it.skipIf(process.platform === "linux")(
+		"keeps the full work area on passthrough platforms once recording starts",
+		async () => {
+			const windows = await import("./windows");
+
+			windows.createHudOverlayWindow();
+			setBounds.mockClear();
+
+			windows.setHudOverlayRecordingActive(true);
+
+			expect(setBounds).toHaveBeenCalled();
+			const appliedBounds = setBounds.mock.calls.at(-1)?.[0];
+			expect(appliedBounds).toEqual(WORK_AREA);
+		},
+	);
+});