diff --git a/client/project.godot b/client/project.godot
index 9c87665..fc1bef0 100644
--- a/client/project.godot
+++ b/client/project.godot
@@ -13,3 +13,10 @@ config_version=5
 config/name="coc-rpg"
 config/description="AI-driven single-player party RPG. Code owns state. AI owns text."
 config/features=PackedStringArray("4.7")
+
+[display]
+
+window/size/viewport_width=1920
+window/size/viewport_height=1080
+window/stretch/mode="canvas_items"
+window/stretch/aspect="keep"
diff --git a/client/scripts/theme/theme_showcase.gd b/client/scripts/theme/theme_showcase.gd
index 20a0d82..48fe2fb 100644
--- a/client/scripts/theme/theme_showcase.gd
+++ b/client/scripts/theme/theme_showcase.gd
@@ -8,7 +8,12 @@ const SERIF_ITALIC := "res://assets/theme/fonts/EBGaramond-Italic-VariableFont_w
 
 func _ready() -> void:
 	theme = load(GAME_THEME)
-	set_anchors_preset(Control.PRESET_FULL_RECT)
+	# A root Control run directly (F6) is not reliably sized to the viewport by
+	# full-rect anchors — it collapses to (0,0), clipping the ScrollContainer and
+	# hiding everything. Size to the viewport explicitly (no full-rect anchors here:
+	# they conflict with setting `size` directly) and track resizes.
+	_fit_to_viewport()
+	get_viewport().size_changed.connect(_fit_to_viewport)
 	var scroll := ScrollContainer.new()
 	scroll.set_anchors_preset(Control.PRESET_FULL_RECT)
 	add_child(scroll)
@@ -27,6 +32,10 @@ func _ready() -> void:
 	col.add_child(_surfaces())
 
 
+func _fit_to_viewport() -> void:
+	size = get_viewport_rect().size
+
+
 func _heading(text: String) -> Label:
 	var l := Label.new()
 	l.text = text