Polish mobile bottom sheets and profile cards

mobile/ios/Runner.xcodeproj/project.pbxproj

@@ -13,6 +13,7 @@
 		4A71C0012F40100100A17E01 /* InlinePhotoPicker.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4A71C0022F40100100A17E01 /* InlinePhotoPicker.swift */; };
 		4A71C0032F40200100A17E01 /* NativeAttachmentPopover.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4A71C0042F40200100A17E01 /* NativeAttachmentPopover.swift */; };
 		4A71C0052F40300100A17E01 /* NativeAttachmentPopoverCoordinator.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4A71C0062F40300100A17E01 /* NativeAttachmentPopoverCoordinator.swift */; };
+		4A71C0072F40400100A17E01 /* ConcentricSheetSurface.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4A71C0082F40400100A17E01 /* ConcentricSheetSurface.swift */; };
 		331C809D294A63AB00263BE5 /* UIKitEncoded.png in Resources */ = {isa = PBXBuildFile; fileRef = 331C809C294A618700263BE5 /* UIKitEncoded.png */; };
 		331C809F294A63AB00263BE5 /* UIKitEncoded.jpg in Resources */ = {isa = PBXBuildFile; fileRef = 331C809E294A618700263BE5 /* UIKitEncoded.jpg */; };
 		33ADD70AB275E0EC81295559 /* Pods_Runner.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 8906419FB4E98B4B12B7A56F /* Pods_Runner.framework */; };
@@ -57,6 +58,7 @@
 		4A71C0022F40100100A17E01 /* InlinePhotoPicker.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = InlinePhotoPicker.swift; sourceTree = "<group>"; };
 		4A71C0042F40200100A17E01 /* NativeAttachmentPopover.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NativeAttachmentPopover.swift; sourceTree = "<group>"; };
 		4A71C0062F40300100A17E01 /* NativeAttachmentPopoverCoordinator.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NativeAttachmentPopoverCoordinator.swift; sourceTree = "<group>"; };
+		4A71C0082F40400100A17E01 /* ConcentricSheetSurface.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ConcentricSheetSurface.swift; sourceTree = "<group>"; };
 		331C809C294A618700263BE5 /* UIKitEncoded.png */ = {isa = PBXFileReference; lastKnownFileType = image.png; path = UIKitEncoded.png; sourceTree = "<group>"; };
 		331C809E294A618700263BE5 /* UIKitEncoded.jpg */ = {isa = PBXFileReference; lastKnownFileType = image.jpeg; path = UIKitEncoded.jpg; sourceTree = "<group>"; };
 		331C8081294A63A400263BE5 /* RunnerTests.xctest */ = {isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = RunnerTests.xctest; sourceTree = BUILT_PRODUCTS_DIR; };
@@ -179,6 +181,7 @@
 				4A71C0022F40100100A17E01 /* InlinePhotoPicker.swift */,
 				4A71C0042F40200100A17E01 /* NativeAttachmentPopover.swift */,
 				4A71C0062F40300100A17E01 /* NativeAttachmentPopoverCoordinator.swift */,
+				4A71C0082F40400100A17E01 /* ConcentricSheetSurface.swift */,
 				7884E8672EC3CC0400C636F2 /* SceneDelegate.swift */,
 				74858FAD1ED2DC5600515810 /* Runner-Bridging-Header.h */,
 			);
@@ -413,6 +416,7 @@
 				4A71C0012F40100100A17E01 /* InlinePhotoPicker.swift in Sources */,
 				4A71C0032F40200100A17E01 /* NativeAttachmentPopover.swift in Sources */,
 				4A71C0052F40300100A17E01 /* NativeAttachmentPopoverCoordinator.swift in Sources */,
+				4A71C0072F40400100A17E01 /* ConcentricSheetSurface.swift in Sources */,
 				1498D2341E8E89220040F4C2 /* GeneratedPluginRegistrant.m in Sources */,
 				7884E8682EC3CC0700C636F2 /* SceneDelegate.swift in Sources */,
 			);

mobile/ios/Runner/AppDelegate.swift

@@ -8,6 +8,7 @@ import UserNotifications
   private var mediaUploadChannel: FlutterMethodChannel?
   private var qrScannerChannel: FlutterMethodChannel?
   private var inlinePhotoPickerSupportChannel: FlutterMethodChannel?
+  private var concentricSheetSurfaceChannel: FlutterMethodChannel?
   private var nativeAttachmentPopoverCoordinator: NativeAttachmentPopoverCoordinator?
 
   override func application(
@@ -63,6 +64,30 @@ import UserNotifications
       )
     }
 
+    if let concentricSheetRegistrar = engineBridge.pluginRegistry.registrar(
+      forPlugin: "BuzzConcentricSheetSurface"
+    ) {
+      concentricSheetRegistrar.register(
+        ConcentricSheetSurfaceFactory(),
+        withId: "buzz/concentric_sheet_surface"
+      )
+      concentricSheetSurfaceChannel = FlutterMethodChannel(
+        name: "buzz/concentric_sheet_surface",
+        binaryMessenger: messenger
+      )
+      concentricSheetSurfaceChannel?.setMethodCallHandler { call, result in
+        guard call.method == "isSupported" else {
+          result(FlutterMethodNotImplemented)
+          return
+        }
+        if #available(iOS 26.0, *) {
+          result(true)
+        } else {
+          result(false)
+        }
+      }
+    }
+
     let nativeAttachmentRegistrar = engineBridge.pluginRegistry.registrar(
       forPlugin: "BuzzNativeAttachmentPopover"
     )

mobile/ios/Runner/ConcentricSheetSurface.swift

@@ -0,0 +1,54 @@
+import Flutter
+import UIKit
+
+final class ConcentricSheetSurfaceFactory: NSObject, FlutterPlatformViewFactory {
+  func createArgsCodec() -> FlutterMessageCodec & NSObjectProtocol {
+    FlutterStandardMessageCodec.sharedInstance()
+  }
+
+  func create(
+    withFrame frame: CGRect,
+    viewIdentifier viewId: Int64,
+    arguments args: Any?
+  ) -> FlutterPlatformView {
+    ConcentricSheetSurfacePlatformView(frame: frame, arguments: args)
+  }
+}
+
+final class ConcentricSheetSurfacePlatformView: NSObject, FlutterPlatformView {
+  private let surfaceView: UIView
+
+  init(frame: CGRect, arguments args: Any?) {
+    let arguments = args as? [String: Any]
+    let colorValue = (arguments?["color"] as? NSNumber)?.uint32Value ?? 0xFFFFFFFF
+    let minimumRadius = (arguments?["minimumRadius"] as? NSNumber)?.doubleValue ?? 24
+
+    surfaceView = UIView(frame: frame)
+    surfaceView.isOpaque = true
+    surfaceView.backgroundColor = Self.color(from: colorValue)
+    surfaceView.clipsToBounds = true
+    surfaceView.layer.cornerCurve = .continuous
+
+    if #available(iOS 26.0, *) {
+      surfaceView.cornerConfiguration = .uniformCorners(
+        radius: .containerConcentric(minimum: minimumRadius)
+      )
+    } else {
+      surfaceView.layer.cornerRadius = minimumRadius
+    }
+
+    super.init()
+  }
+
+  func view() -> UIView {
+    surfaceView
+  }
+
+  private static func color(from value: UInt32) -> UIColor {
+    let alpha = CGFloat((value >> 24) & 0xFF) / 255
+    let red = CGFloat((value >> 16) & 0xFF) / 255
+    let green = CGFloat((value >> 8) & 0xFF) / 255
+    let blue = CGFloat(value & 0xFF) / 255
+    return UIColor(red: red, green: green, blue: blue, alpha: alpha)
+  }
+}

mobile/lib/features/activity/activity_page.dart

@@ -18,6 +18,7 @@ import '../../shared/widgets/buzz_loading_indicator.dart';
 import '../../shared/widgets/frosted_app_bar.dart';
 import '../../shared/widgets/frosted_scaffold.dart';
 import '../../shared/widgets/message_author_meta.dart';
+import '../../shared/widgets/modal_presentation.dart';
 import '../channels/channel.dart';
 import '../channels/channel_detail_page.dart';
 import '../channels/channels_provider.dart';

mobile/lib/features/activity/activity_page/inbox_row.dart

@@ -340,32 +340,42 @@ class _InboxRow extends HookConsumerWidget {
   }
 
   void _showRowActions(BuildContext context) {
-    showModalBottomSheet<void>(
+    showBuzzModalBottomSheet<void>(
       context: context,
       builder: (sheetContext) => SafeArea(
-        child: Column(
-          mainAxisSize: MainAxisSize.min,
-          children: [
-            ListTile(
-              leading: Icon(
-                isDone ? LucideIcons.mail : LucideIcons.mailOpen,
-                size: 20,
-              ),
-              title: Text(isDone ? 'Mark unread' : 'Mark as read'),
-              onTap: () {
-                Navigator.of(sheetContext).pop();
-                isDone ? onMarkUnread() : onMarkRead();
-              },
-            ),
-            ListTile(
-              leading: const Icon(LucideIcons.externalLink, size: 20),
-              title: const Text('Open conversation'),
-              onTap: () {
-                Navigator.of(sheetContext).pop();
-                onTap();
-              },
+        child: Padding(
+          padding: const EdgeInsets.fromLTRB(
+            Grid.gutter,
+            0,
+            Grid.gutter,
+            Grid.xs,
+          ),
+          child: IconTheme.merge(
+            data: const IconThemeData(size: 18),
+            child: Column(
+              mainAxisSize: MainAxisSize.min,
+              children: [
+                ListTile(
+                  leading: Icon(
+                    isDone ? LucideIcons.mail : LucideIcons.mailOpen,
+                  ),
+                  title: Text(isDone ? 'Mark unread' : 'Mark as read'),
+                  onTap: () {
+                    Navigator.of(sheetContext).pop();
+                    isDone ? onMarkUnread() : onMarkRead();
+                  },
+                ),
+                ListTile(
+                  leading: const Icon(LucideIcons.externalLink),
+                  title: const Text('Open conversation'),
+                  onTap: () {
+                    Navigator.of(sheetContext).pop();
+                    onTap();
+                  },
+                ),
+              ],
             ),
-          ],
+          ),
         ),
       ),
     );