diff --git a/wallets/rn_cli_wallet/src/components/DesktopFrameWrapper.tsx b/wallets/rn_cli_wallet/src/components/DesktopFrameWrapper.tsx
new file mode 100644
index 00000000..7467579f
--- /dev/null
+++ b/wallets/rn_cli_wallet/src/components/DesktopFrameWrapper.tsx
@@ -0,0 +1,9 @@
+import { PropsWithChildren } from 'react';
+
+/**
+ * Native passthrough. The desktop frame only exists on web
+ * (see DesktopFrameWrapper.web.tsx); on iOS/Android the app renders full-screen.
+ */
+export function DesktopFrameWrapper({ children }: PropsWithChildren) {
+  return <>{children}</>;
+}
diff --git a/wallets/rn_cli_wallet/src/components/DesktopFrameWrapper.web.tsx b/wallets/rn_cli_wallet/src/components/DesktopFrameWrapper.web.tsx
new file mode 100644
index 00000000..c99bbcff
--- /dev/null
+++ b/wallets/rn_cli_wallet/src/components/DesktopFrameWrapper.web.tsx
@@ -0,0 +1,91 @@
+import { PropsWithChildren, useEffect, useState } from 'react';
+import { useSnapshot } from 'valtio';
+
+import SettingsStore from '@/store/SettingsStore';
+import { DarkTheme, LightTheme } from '@/utils/ThemeUtil';
+import { DesktopFrame } from '@/constants/DesktopFrame';
+
+/**
+ * "Framed-lite" desktop frame for web.
+ *
+ * On a wide desktop viewport (>= BREAKPOINT) the app is centered in a fixed,
+ * phone-width surface with rounded corners and a drop shadow so it doesn't
+ * stretch giant across the screen. Below the breakpoint (mobile web) it renders
+ * full-bleed, unchanged.
+ *
+ * Unlike the pos-app frame this deliberately avoids `transform: scale()` and a
+ * modal portal. On web the <Modal /> renders inline (coverScreen=false) so it
+ * stays inside this frame and is clipped by `overflow: hidden`; <Toast /> still
+ * renders as a fixed full-viewport overlay and is left untouched.
+ */
+const RESIZE_DEBOUNCE_MS = 150;
+
+function useIsDesktopWeb(): boolean {
+  const [isDesktop, setIsDesktop] = useState(
+    () =>
+      typeof window !== 'undefined' &&
+      window.innerWidth >= DesktopFrame.BREAKPOINT,
+  );
+
+  useEffect(() => {
+    if (typeof window === 'undefined') {
+      return;
+    }
+
+    let timeout: ReturnType<typeof setTimeout> | undefined;
+    const onResize = () => {
+      clearTimeout(timeout);
+      timeout = setTimeout(() => {
+        setIsDesktop(window.innerWidth >= DesktopFrame.BREAKPOINT);
+      }, RESIZE_DEBOUNCE_MS);
+    };
+
+    window.addEventListener('resize', onResize);
+    return () => {
+      clearTimeout(timeout);
+      window.removeEventListener('resize', onResize);
+    };
+  }, []);
+
+  return isDesktop;
+}
+
+export function DesktopFrameWrapper({ children }: PropsWithChildren) {
+  const { themeMode } = useSnapshot(SettingsStore.state);
+  const isDesktop = useIsDesktopWeb();
+
+  if (!isDesktop) {
+    return <>{children}</>;
+  }
+
+  const Theme = themeMode === 'dark' ? DarkTheme : LightTheme;
+  const backgroundColor =
+    themeMode === 'dark' ? DesktopFrame.BACKGROUND.dark : DesktopFrame.BACKGROUND.light;
+
+  return (
+    <div
+      style={{
+        position: 'fixed',
+        inset: 0,
+        backgroundColor,
+        display: 'flex',
+        alignItems: 'center',
+        justifyContent: 'center',
+        overflow: 'hidden',
+      }}>
+      <div
+        style={{
+          display: 'flex',
+          flexDirection: 'column',
+          width: DesktopFrame.DEVICE_WIDTH,
+          height: `min(${DesktopFrame.DEVICE_HEIGHT}px, calc(100vh - 32px))`,
+          borderRadius: DesktopFrame.SCREEN_RADIUS,
+          boxShadow: DesktopFrame.SHADOW,
+          overflow: 'hidden',
+          backgroundColor: Theme['bg-primary'],
+        }}>
+        {children}
+      </div>
+    </div>
+  );
+}
diff --git a/wallets/rn_cli_wallet/src/components/Header.tsx b/wallets/rn_cli_wallet/src/components/Header.tsx
index bf660a60..134eba74 100644
--- a/wallets/rn_cli_wallet/src/components/Header.tsx
+++ b/wallets/rn_cli_wallet/src/components/Header.tsx
@@ -53,7 +53,12 @@ export function Header() {
       style={[
         styles.container,
         {
-          paddingTop: Platform.OS === 'ios' ? top : top + Spacing[2],
+          paddingTop:
+            Platform.OS === 'ios'
+              ? top
+              : Platform.OS === 'web'
+                ? Spacing[8]
+                : top + Spacing[2],
           backgroundColor: Theme['bg-primary'],
         },
       ]}
diff --git a/wallets/rn_cli_wallet/src/components/Modal.tsx b/wallets/rn_cli_wallet/src/components/Modal.tsx
index b4b36a3a..01112829 100644
--- a/wallets/rn_cli_wallet/src/components/Modal.tsx
+++ b/wallets/rn_cli_wallet/src/components/Modal.tsx
@@ -7,6 +7,7 @@ import { useSafeAreaInsets } from 'react-native-safe-area-context';
 
 import ModalStore from '@/store/ModalStore';
 import { Spacing } from '@/utils/ThemeUtil';
+import { DesktopFrame } from '@/constants/DesktopFrame';
 import SessionProposalModal from '@/modals/SessionProposalModal';
 import SessionSignModal from '@/modals/SessionSignModal';
 import SessionSendTransactionModal from '@/modals/SessionSendTransactionModal';
@@ -100,7 +101,11 @@ export default function Modal() {
       statusBarTranslucent
       propagateSwipe
       onBackdropPress={onClose}
-      style={styles.modal}
+      style={[styles.modal, Platform.OS === 'web' ? styles.modalWeb : null]}
+      // On web, render inline (not via the full-screen portal) so the sheet +
+      // backdrop stay inside the desktop frame and get clipped to its rounded
+      // bottom corners instead of overflowing to the viewport edge.
+      coverScreen={Platform.OS !== 'web'}
       isVisible={open}
     >
       <GestureHandlerRootView style={gestureRootStyle}>
@@ -114,6 +119,15 @@ const styles = StyleSheet.create({
   modal: {
     margin: Spacing[0],
   },
+  // On web, constrain the sheet to the desktop frame width and center it so it
+  // doesn't stretch full-viewport. Self-adjusts: fills the width on narrow
+  // screens, caps + centers on wide desktop. With coverScreen=false the backdrop
+  // dims only the frame area (its parent), not the full page.
+  modalWeb: {
+    width: '100%',
+    maxWidth: DesktopFrame.DEVICE_WIDTH,
+    alignSelf: 'center',
+  },
   gestureRoot: {
     flex: 1,
     margin: Spacing[0],
diff --git a/wallets/rn_cli_wallet/src/constants/DesktopFrame.ts b/wallets/rn_cli_wallet/src/constants/DesktopFrame.ts
new file mode 100644
index 00000000..f4aa157a
--- /dev/null
+++ b/wallets/rn_cli_wallet/src/constants/DesktopFrame.ts
@@ -0,0 +1,17 @@
+// Shared dimensions for the "framed-lite" desktop-web layout.
+// Used by DesktopFrameWrapper.web.tsx (the frame) and Modal.tsx (to keep sheets
+// constrained to the same width on desktop web).
+export const DesktopFrame = {
+  // Min viewport width at which the desktop frame is shown
+  BREAKPOINT: 1024,
+  // Phone-like surface width the app is constrained to
+  DEVICE_WIDTH: 430,
+  DEVICE_HEIGHT: 932,
+  SCREEN_RADIUS: 40,
+  SHADOW: '0 25px 50px -12px rgba(0, 0, 0, 0.25)',
+  // Neutral page background behind the frame (distinct from the screen bg for contrast)
+  BACKGROUND: {
+    light: '#F0F0F0',
+    dark: '#0A0A0A',
+  },
+} as const;
diff --git a/wallets/rn_cli_wallet/src/navigators/HomeTabNavigator.web.tsx b/wallets/rn_cli_wallet/src/navigators/HomeTabNavigator.web.tsx
index 1c9b3fdc..2225d582 100644
--- a/wallets/rn_cli_wallet/src/navigators/HomeTabNavigator.web.tsx
+++ b/wallets/rn_cli_wallet/src/navigators/HomeTabNavigator.web.tsx
@@ -9,6 +9,7 @@ import Wallets from '@/screens/Wallets';
 import Connections from '@/screens/Connections';
 import Settings from '@/screens/Settings';
 import { useTheme } from '@/hooks/useTheme';
+import { Spacing } from '@/utils/ThemeUtil';
 
 const TabNav = createBottomTabNavigator<HomeTabParamList>();
 
@@ -31,7 +32,15 @@ export function HomeTabNavigator() {
       screenOptions={{
         headerShown: false,
         sceneStyle: { backgroundColor: Theme['bg-primary'] },
-        tabBarStyle: { backgroundColor: Theme['bg-primary'] },
+        tabBarStyle: {
+          backgroundColor: Theme['bg-primary'],
+          // Softer, lighter top divider than the react-navigation default
+          borderTopColor: Theme['border-secondary'],
+          // Extra height + bottom padding so labels aren't clipped in the desktop frame
+          height: 72,
+          paddingBottom: Spacing[4],
+          paddingTop: Spacing[1],
+        },
       }}>
       <TabNav.Screen
         name="Wallets"
diff --git a/wallets/rn_cli_wallet/src/screens/App.tsx b/wallets/rn_cli_wallet/src/screens/App.tsx
index 4bf81bde..478a3ed7 100644
--- a/wallets/rn_cli_wallet/src/screens/App.tsx
+++ b/wallets/rn_cli_wallet/src/screens/App.tsx
@@ -14,6 +14,7 @@ import { RELAYER_EVENTS } from '@walletconnect/core';
 
 import { RootStackNavigator } from '@/navigators/RootStackNavigator';
 import Modal from '@/components/Modal';
+import { DesktopFrameWrapper } from '@/components/DesktopFrameWrapper';
 import useInitializeWalletKit from '@/hooks/useInitializeWalletKit';
 import useWalletKitEventsManager from '@/hooks/useWalletKitEventsManager';
 import { usePairing } from '@/hooks/usePairing';
@@ -205,24 +206,26 @@ const App = () => {
   );
 
   return (
-    <GestureHandlerRootView style={rootStyle}>
-      <SafeAreaProvider>
-        <KeyboardProvider>
-          <NavigationContainer
-            documentTitle={{ formatter: () => 'React N. Wallet' }}>
-            <StatusBar
-              translucent
-              backgroundColor="transparent"
-              barStyle={themeMode === 'dark' ? 'light-content' : 'dark-content'}
-            />
-            <NavigationBar style={themeMode === 'dark' ? 'light' : 'dark'} />
-            <RootStackNavigator />
-            <Modal />
-          </NavigationContainer>
-          <Toast config={toastConfig} position="top" topOffset={0} />
-        </KeyboardProvider>
-      </SafeAreaProvider>
-    </GestureHandlerRootView>
+    <DesktopFrameWrapper>
+      <GestureHandlerRootView style={rootStyle}>
+        <SafeAreaProvider>
+          <KeyboardProvider>
+            <NavigationContainer
+              documentTitle={{ formatter: () => 'React N. Wallet' }}>
+              <StatusBar
+                translucent
+                backgroundColor="transparent"
+                barStyle={themeMode === 'dark' ? 'light-content' : 'dark-content'}
+              />
+              <NavigationBar style={themeMode === 'dark' ? 'light' : 'dark'} />
+              <RootStackNavigator />
+              <Modal />
+            </NavigationContainer>
+            <Toast config={toastConfig} position="top" topOffset={0} />
+          </KeyboardProvider>
+        </SafeAreaProvider>
+      </GestureHandlerRootView>
+    </DesktopFrameWrapper>
   );
 };
 
diff --git a/wallets/rn_cli_wallet/src/screens/Settings/index.tsx b/wallets/rn_cli_wallet/src/screens/Settings/index.tsx
index 60a13a10..8e7f428e 100644
--- a/wallets/rn_cli_wallet/src/screens/Settings/index.tsx
+++ b/wallets/rn_cli_wallet/src/screens/Settings/index.tsx
@@ -35,7 +35,7 @@ export default function Settings() {
           activeThumbColor: Theme.white,
         }
       : {}
-  ) as object;
+  ) as { activeTrackColor?: string; activeThumbColor?: string };
 
   useEffect(() => {
     async function getAsyncData() {
@@ -81,19 +81,30 @@ export default function Settings() {
             <Text variant="md-500" color="text-primary">
               Dark mode
             </Text>
-            <Switch
-              value={themeMode === 'dark'}
-              style={styles.switch}
-              onValueChange={toggleDarkMode}
-              trackColor={Platform.select({
-                android: {
-                  false: Theme['foreground-tertiary'],
-                  true: Theme['bg-accent-primary'],
-                },
-              })}
-              thumbColor={Platform.select({ android: Theme.white })}
-              {...webAccentSwitchProps}
-            />
+            {/* On web the whole card (PressableScale) owns the toggle: a tap on
+                the switch bubbles up to the card, so if the Switch also fired
+                onValueChange it would toggle twice (net no change). Render it
+                display-only with pointerEvents="none" so the tap passes through.
+                On native there's no double-toggle, so keep the Switch fully
+                interactive (and accessible) with its own onValueChange. */}
+            {Platform.OS === 'web' ? (
+              <View pointerEvents="none" style={styles.switch}>
+                <Switch value={themeMode === 'dark'} {...webAccentSwitchProps} />
+              </View>
+            ) : (
+              <Switch
+                value={themeMode === 'dark'}
+                style={styles.switch}
+                onValueChange={toggleDarkMode}
+                trackColor={Platform.select({
+                  android: {
+                    false: Theme['foreground-tertiary'],
+                    true: Theme['bg-accent-primary'],
+                  },
+                })}
+                thumbColor={Platform.select({ android: Theme.white })}
+              />
+            )}
           </View>
         </Button>
         <Card