diff --git a/client/src/launcher/ui/preview_profiles.rs b/client/src/launcher/ui/preview_profiles.rs
index 0b03536..e0ed0ad 100644
--- a/client/src/launcher/ui/preview_profiles.rs
+++ b/client/src/launcher/ui/preview_profiles.rs
@@ -2,12 +2,12 @@ fn largest_monitor_size() -> (u32, u32) {
     let (width, height) = enumerate_monitors()
         .into_iter()
         .max_by_key(|monitor| {
-            effective_monitor_width(monitor) as u64 * effective_monitor_height(monitor) as u64
+            monitor.geometry.width().max(1) as u64 * monitor.geometry.height().max(1) as u64
         })
         .map(|monitor| {
             (
-                effective_monitor_width(&monitor),
-                effective_monitor_height(&monitor),
+                monitor.geometry.width().max(1) as u32,
+                monitor.geometry.height().max(1) as u32,
             )
         })
         .unwrap_or((1920, 1080));
@@ -54,18 +54,6 @@ fn probe_kscreen_display_size() -> Option<(u32, u32)> {
     best
 }
 
-#[cfg(not(coverage))]
-fn effective_monitor_width(monitor: &crate::output::display::MonitorInfo) -> u32 {
-    let scale = monitor.scale_factor.max(1) as u32;
-    (monitor.geometry.width().max(1) as u32).saturating_mul(scale)
-}
-
-#[cfg(not(coverage))]
-fn effective_monitor_height(monitor: &crate::output::display::MonitorInfo) -> u32 {
-    let scale = monitor.scale_factor.max(1) as u32;
-    (monitor.geometry.height().max(1) as u32).saturating_mul(scale)
-}
-
 #[cfg(not(coverage))]
 fn normalize_breakout_limit(width: u32, height: u32) -> (u32, u32) {
     const STANDARD_SIZES: &[(u32, u32)] = &[
@@ -87,9 +75,9 @@ fn normalize_breakout_limit(width: u32, height: u32) -> (u32, u32) {
 
 #[cfg(not(coverage))]
 fn launcher_default_size(width: u32, height: u32) -> (i32, i32) {
-    let max_width = width.saturating_sub(48).max(640) as i32;
-    let max_height = height.saturating_sub(72).max(520) as i32;
-    (1380.min(max_width), 860.min(max_height))
+    let max_width = width.saturating_sub(72).max(640) as i32;
+    let max_height = height.saturating_sub(120).max(520) as i32;
+    (1280.min(max_width), 780.min(max_height))
 }
 
 #[cfg(not(coverage))]
diff --git a/client/src/launcher/ui_components/build_shell.rs b/client/src/launcher/ui_components/build_shell.rs
index fcdf6e6..46575e4 100644
--- a/client/src/launcher/ui_components/build_shell.rs
+++ b/client/src/launcher/ui_components/build_shell.rs
@@ -6,7 +6,6 @@
         .default_height(LAUNCHER_DEFAULT_HEIGHT)
         .resizable(false)
         .build();
-    window.set_size_request(LAUNCHER_DEFAULT_WIDTH, LAUNCHER_DEFAULT_HEIGHT);
     install_css(&window);
     install_window_icon(&window);
 
diff --git a/client/src/launcher/ui_components/types.rs b/client/src/launcher/ui_components/types.rs
index 4b3f240..6199d94 100644
--- a/client/src/launcher/ui_components/types.rs
+++ b/client/src/launcher/ui_components/types.rs
@@ -181,8 +181,8 @@ pub struct LauncherView {
 
 pub const LESAVKA_ICON_NAME: &str = "dev.lesavka.launcher";
 const LESAVKA_ICON_SEARCH_PATH: &str = concat!(env!("CARGO_MANIFEST_DIR"), "/assets/icons");
-const LAUNCHER_DEFAULT_WIDTH: i32 = 1360;
-const LAUNCHER_DEFAULT_HEIGHT: i32 = 900;
+const LAUNCHER_DEFAULT_WIDTH: i32 = 1280;
+const LAUNCHER_DEFAULT_HEIGHT: i32 = 780;
 const OPERATIONS_RAIL_WIDTH: i32 = 304;
 const CAMERA_PREVIEW_VIEWPORT_HEIGHT: i32 = 146;
 const CAMERA_PREVIEW_VIEWPORT_WIDTH: i32 = 280;
diff --git a/testing/tests/client_launcher_layout_contract.rs b/testing/tests/client_launcher_layout_contract.rs
index cc75d6a..bf3c97c 100644
--- a/testing/tests/client_launcher_layout_contract.rs
+++ b/testing/tests/client_launcher_layout_contract.rs
@@ -9,6 +9,7 @@
 const UI_LAYOUT_SRC: &str = concat!(
     include_str!("../../client/src/launcher/ui_components/types.rs"),
     include_str!("../../client/src/launcher/ui_components/build_shell.rs"),
+    include_str!("../../client/src/launcher/ui/preview_profiles.rs"),
     include_str!("../../client/src/launcher/ui_components/display_pane.rs"),
     include_str!("../../client/src/launcher/ui_components/build_device_controls.rs"),
     include_str!("../../client/src/launcher/ui_components/build_operations_rail.rs"),
@@ -39,16 +40,27 @@ fn source_index(needle: &str) -> usize {
 
 #[test]
 fn launcher_default_size_stays_inside_1080p() {
-    assert_eq!(const_i32("LAUNCHER_DEFAULT_WIDTH"), 1360);
-    assert_eq!(const_i32("LAUNCHER_DEFAULT_HEIGHT"), 900);
+    assert_eq!(const_i32("LAUNCHER_DEFAULT_WIDTH"), 1280);
+    assert_eq!(const_i32("LAUNCHER_DEFAULT_HEIGHT"), 780);
     assert!(const_i32("LAUNCHER_DEFAULT_WIDTH") <= 1920);
     assert!(
         const_i32("LAUNCHER_DEFAULT_HEIGHT") <= 900,
         "leave room for desktop panels and window chrome on a 1080p monitor"
     );
     assert!(
-        UI_LAYOUT_SRC
-            .contains("window.set_size_request(LAUNCHER_DEFAULT_WIDTH, LAUNCHER_DEFAULT_HEIGHT);")
+        !UI_LAYOUT_SRC
+            .contains("window.set_size_request(LAUNCHER_DEFAULT_WIDTH, LAUNCHER_DEFAULT_HEIGHT);"),
+        "the top-level window should not pin a larger minimum than the startup budget"
+    );
+    assert!(
+        UI_LAYOUT_SRC.contains("let max_width = width.saturating_sub(72).max(640) as i32;")
+    );
+    assert!(
+        UI_LAYOUT_SRC.contains("let max_height = height.saturating_sub(120).max(520) as i32;")
+    );
+    assert!(
+        UI_LAYOUT_SRC.contains("(1280.min(max_width), 780.min(max_height))"),
+        "the activation path must use the same compact startup budget as the shell"
     );
 }