diff --git a/docs/superpowers/specs/2026-09-01-work-app-design.md b/docs/superpowers/specs/2026-09-01-work-app-design.md
index 7601e83..f486400 100644
--- a/docs/superpowers/specs/2026-09-01-work-app-design.md
+++ b/docs/superpowers/specs/2026-09-01-work-app-design.md
@@ -281,7 +281,14 @@ load — falls back to its initial in a tile of the same size, so the row never
## The window
The window keeps its ordinary macOS title bar, with the traffic lights where every other
-window puts them. It follows the app's own Light or Dark choice through `set_theme`;
+window puts them. Its content runs the full height *underneath* that bar, so each column
+carries its own strip standing in for it — the nav's and the app's — rather than one
+across the top. Two things follow from that, and both were bugs first:
+
+- Those strips are **drag regions**. They cover the title bar, and a webview that covers
+ the title bar swallows the gesture that moves the window.
+- They live **inside** each column rather than above both, so the rule between the nav and
+ the app runs the whole height of the window instead of starting below the bar. It follows the app's own Light or Dark choice through `set_theme`;
"System" hands it back to the OS, which is what System means.
An earlier version drew its own frame instead — a hidden title bar, a margin to grab, and
diff --git a/src/App.tsx b/src/App.tsx
index 7b1f473..5492661 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -195,13 +195,13 @@ export default function App() {
if (!config) return null;
return (
- /* The inset is the nav's own colour, so the title bar above it and the
- sidebar below read as one surface. */
-
-
+ /* The window's content runs the full height, underneath the title bar. Each
+ column carries its own strip for that rather than one across the top, so
+ the rule between the nav and the app runs the whole height of the window
+ instead of starting below the bar. The strips are drag regions: they
+ cover the title bar, and without saying so they would swallow the gesture
+ that moves the window. */
+