diff --git a/client/project.godot b/client/project.godot
index fc1bef0..3b737ae 100644
--- a/client/project.godot
+++ b/client/project.godot
@@ -16,7 +16,12 @@ config/features=PackedStringArray("4.7")
 
 [display]
 
+; Design/logical canvas stays 1920x1080 (charter §16, mockups authored here).
 window/size/viewport_width=1920
 window/size/viewport_height=1080
+; Open a smaller 1600x900 window that scales the 1920x1080 canvas down, so it
+; doesn't fill the whole screen. canvas_items + keep aspect does the scaling.
+window/size/window_width_override=1600
+window/size/window_height_override=900
 window/stretch/mode="canvas_items"
 window/stretch/aspect="keep"