diff --git a/apps/macos/Sources/Clawdis/WebChatSwiftUI.swift b/apps/macos/Sources/Clawdis/WebChatSwiftUI.swift
index 644f0a12c..1f3a3aaa7 100644
--- a/apps/macos/Sources/Clawdis/WebChatSwiftUI.swift
+++ b/apps/macos/Sources/Clawdis/WebChatSwiftUI.swift
@@ -10,8 +10,9 @@ private let webChatSwiftLogger = Logger(subsystem: "com.steipete.clawdis", categ
 
 private enum WebChatSwiftUILayout {
     static let windowSize = NSSize(width: 1120, height: 840)
-    static let panelSize = NSSize(width: 560, height: 720)
+    static let panelSize = NSSize(width: 480, height: 640)
     static let windowMinSize = NSSize(width: 960, height: 720)
+    static let windowInset: CGFloat = 6
     static let anchorPadding: CGFloat = 8
 }
 
@@ -313,26 +314,44 @@ final class WebChatSwiftUIWindowController {
         effectView.material = .sidebar
         effectView.blendingMode = .behindWindow
         effectView.state = .active
-        effectView.translatesAutoresizingMaskIntoConstraints = true
-        effectView.autoresizingMask = [.width, .height]
         effectView.wantsLayer = true
         effectView.layer?.cornerCurve = .continuous
         let cornerRadius: CGFloat = switch presentation {
         case .panel:
             16
         case .window:
-            12
+            14
         }
         effectView.layer?.cornerRadius = cornerRadius
         effectView.layer?.masksToBounds = true
 
+        let rootView: NSView
+        if case .window = presentation {
+            let container = NSView()
+            container.wantsLayer = true
+            container.layer?.backgroundColor = NSColor.clear.cgColor
+            effectView.translatesAutoresizingMaskIntoConstraints = false
+            container.addSubview(effectView)
+            NSLayoutConstraint.activate([
+                effectView.leadingAnchor.constraint(equalTo: container.leadingAnchor, constant: WebChatSwiftUILayout.windowInset),
+                effectView.trailingAnchor.constraint(equalTo: container.trailingAnchor, constant: -WebChatSwiftUILayout.windowInset),
+                effectView.topAnchor.constraint(equalTo: container.topAnchor, constant: WebChatSwiftUILayout.windowInset),
+                effectView.bottomAnchor.constraint(equalTo: container.bottomAnchor, constant: -WebChatSwiftUILayout.windowInset),
+            ])
+            rootView = container
+        } else {
+            effectView.translatesAutoresizingMaskIntoConstraints = true
+            effectView.autoresizingMask = [.width, .height]
+            rootView = effectView
+        }
+
         hosting.view.translatesAutoresizingMaskIntoConstraints = false
         hosting.view.wantsLayer = true
         hosting.view.layer?.backgroundColor = NSColor.clear.cgColor
 
         controller.addChild(hosting)
         effectView.addSubview(hosting.view)
-        controller.view = effectView
+        controller.view = rootView
 
         NSLayoutConstraint.activate([
             hosting.view.leadingAnchor.constraint(equalTo: effectView.leadingAnchor),