diff --git a/lib/frontend/screens/chats/chat_info_screen.dart b/lib/frontend/screens/chats/chat_info_screen.dart
index a4fff33..23d7f42 100644
--- a/lib/frontend/screens/chats/chat_info_screen.dart
+++ b/lib/frontend/screens/chats/chat_info_screen.dart
@@ -63,6 +63,7 @@ class ChatInfoScreen extends StatefulWidget {
 
 class _ChatInfoScreenState extends State<ChatInfoScreen> {
   final _tabScrollController = ScrollController();
+  final _bodyScrollController = ScrollController();
 
   int _myId = 0;
   bool _isLoading = true;
@@ -93,6 +94,7 @@ class _ChatInfoScreenState extends State<ChatInfoScreen> {
   @override
   void dispose() {
     _tabScrollController.dispose();
+    _bodyScrollController.dispose();
     super.dispose();
   }
 
@@ -251,6 +253,7 @@ class _ChatInfoScreenState extends State<ChatInfoScreen> {
 
   Widget _buildScrollBody(ColorScheme cs) {
     return CustomScrollView(
+      controller: _bodyScrollController,
       slivers: [
         SliverAppBar(
           backgroundColor: Colors.transparent,
@@ -762,6 +765,7 @@ class _ChatInfoScreenState extends State<ChatInfoScreen> {
       emptyLabel: emptyLabel,
       emptyIcon: emptyIcon,
       onGoToMessage: _goToMessage,
+      scrollController: _bodyScrollController,
     );
   }
 
diff --git a/lib/frontend/screens/chats/chat_screen.dart b/lib/frontend/screens/chats/chat_screen.dart
index 03ade95..79ae7e5 100644
--- a/lib/frontend/screens/chats/chat_screen.dart
+++ b/lib/frontend/screens/chats/chat_screen.dart
@@ -313,8 +313,7 @@ class _ChatScreenState extends State<ChatScreen>
     final total = counters.values.fold<int>(0, (a, b) => a + b);
     return {
       'counters': [
-        for (final key in order)
-          {'reaction': key, 'count': counters[key]},
+        for (final key in order) {'reaction': key, 'count': counters[key]},
       ],
       'yourReaction': ?your,
       'totalCount': total,
@@ -2292,7 +2291,10 @@ class _ChatScreenState extends State<ChatScreen>
                                             navigator.popUntil(
                                               (r) => r == chatRoute,
                                             );
-                                            _requestGoToMessage(messageId, time);
+                                            _requestGoToMessage(
+                                              messageId,
+                                              time,
+                                            );
                                           },
                                   ),
                                 ),
@@ -3371,6 +3373,24 @@ class _ChatScreenState extends State<ChatScreen>
     _finishTargetNavigation();
   }
 
+  ({int min, int max})? _laidOutMessageRange(List<Object> items) {
+    int? lo;
+    int? hi;
+    for (var i = 0; i < items.length; i++) {
+      final it = items[i];
+      if (it is! _MessageItem) continue;
+      final ro = _keyForMessage(
+        it.message.id,
+      ).currentContext?.findRenderObject();
+      if (ro is RenderBox && ro.attached) {
+        lo ??= i;
+        hi = i;
+      }
+    }
+    if (lo == null) return null;
+    return (min: lo, max: hi!);
+  }
+
   Future<void> _scrollToMessagePrecise(
     String id, {
     double alignment = 0.32,
@@ -3381,28 +3401,28 @@ class _ChatScreenState extends State<ChatScreen>
     _suppressHistoryAutoload = true;
     try {
       var stable = 0;
-      for (var iter = 0; iter < 48; iter++) {
+      for (var iter = 0; iter < 120; iter++) {
         if (!mounted || !_scrollController.hasClients) return;
         final listObj = _listKey.currentContext?.findRenderObject();
         final boxObj = _keyForMessage(id).currentContext?.findRenderObject();
+        final p = _scrollController.position;
 
-        if (boxObj is RenderBox && boxObj.attached && listObj is RenderBox) {
+        if (listObj is RenderBox && boxObj is RenderBox && boxObj.attached) {
           final viewportH = listObj.size.height;
           final actualTop = boxObj
               .localToGlobal(Offset.zero, ancestor: listObj)
               .dy;
           final desiredTop = alignment * viewportH;
           final delta = desiredTop - actualTop;
-          final p = _scrollController.position;
           final target = (p.pixels + delta).clamp(
             p.minScrollExtent,
             p.maxScrollExtent,
           );
 
-          if (delta.abs() <= 4.0 || (target - p.pixels).abs() <= 1.0) {
+          if (delta.abs() <= 2.0 || (target - p.pixels).abs() <= 1.0) {
             stable++;
-            if (stable >= 3) return;
-            await Future.delayed(const Duration(milliseconds: 130));
+            if (stable >= 4) return;
+            await Future.delayed(const Duration(milliseconds: 60));
             continue;
           }
           stable = 0;
@@ -3417,19 +3437,20 @@ class _ChatScreenState extends State<ChatScreen>
           (it) => it is _MessageItem && it.message.id == id,
         );
         if (pos == -1) return;
-        var below = 0.0;
-        for (var i = pos + 1; i < items.length; i++) {
-          below += _estimatedItemExtent(items[i]);
-        }
-        final p = _scrollController.position;
-        final maxExtent = p.maxScrollExtent;
-        final viewportH = listObj is RenderBox ? listObj.size.height : 500.0;
-        var targetOffset = below.clamp(0.0, maxExtent).toDouble();
-        if ((targetOffset - p.pixels).abs() < 4.0) {
-          targetOffset = (p.pixels + viewportH * 0.8).clamp(0.0, maxExtent);
-          if ((targetOffset - p.pixels).abs() < 4.0) return;
-        }
-        _scrollController.jumpTo(targetOffset);
+
+        final viewportH = listObj is RenderBox ? listObj.size.height : 600.0;
+        var stepMag = viewportH * 0.8;
+        if (stepMag > 700) stepMag = 700;
+
+        final range = _laidOutMessageRange(items);
+        final step = (range != null && pos > range.max) ? -stepMag : stepMag;
+
+        final target = (p.pixels + step).clamp(
+          p.minScrollExtent,
+          p.maxScrollExtent,
+        );
+        if ((target - p.pixels).abs() < 1.0) return;
+        _scrollController.jumpTo(target);
         await WidgetsBinding.instance.endOfFrame;
       }
     } finally {
@@ -3437,48 +3458,6 @@ class _ChatScreenState extends State<ChatScreen>
     }
   }
 
-  double _estimatedItemExtent(Object item) {
-    if (item is! _MessageItem) return 44.0;
-    final msg = item.message;
-    var base = 0.0;
-    final atts = msg.attachments;
-    if (atts != null && atts.isNotEmpty) {
-      for (final a in atts) {
-        switch (a.type) {
-          case AttachmentType.photo:
-          case AttachmentType.video:
-            int? w;
-            int? h;
-            if (a is PhotoAttachment) {
-              w = a.width;
-              h = a.height;
-            } else if (a is VideoAttachment) {
-              w = a.width;
-              h = a.height;
-            }
-            base += (w != null && h != null && w > 0)
-                ? (236.0 * h / w).clamp(120.0, 360.0)
-                : 260.0;
-            base += 12;
-          case AttachmentType.sticker:
-            base += 160;
-          case AttachmentType.audio:
-            base += 72;
-          case AttachmentType.file:
-            base += 80;
-          case AttachmentType.share:
-            base += 96;
-          default:
-            base += 60;
-        }
-      }
-    }
-    final textLen = msg.text?.length ?? 0;
-    if (textLen > 0) base += 24.0 + (textLen ~/ 34) * 20.0;
-    if (base <= 0) base = _avgMessageHeight;
-    return base.clamp(44.0, 1200.0).toDouble();
-  }
-
   Future<void> _openSearchResult(MessageSearchResult result) async {
     _closeSearch();
     await WidgetsBinding.instance.endOfFrame;
@@ -5597,9 +5576,16 @@ class _SelectableMessageRowState extends State<_SelectableMessageRow> {
 
   final GlobalKey _boundaryKey = GlobalKey();
   Offset? _lastTapDown;
+  Timer? _openTimer;
 
   bool _isPinnedNow() => widget.isPinned();
 
+  @override
+  void dispose() {
+    _openTimer?.cancel();
+    super.dispose();
+  }
+
   void _openMenu() {
     final ctx = _boundaryKey.currentContext;
     if (ctx == null) return;
@@ -5684,7 +5670,10 @@ class _SelectableMessageRowState extends State<_SelectableMessageRow> {
     if (widget.isSelectionActive()) {
       widget.onToggleSelection();
     } else {
-      _openMenu();
+      _openTimer?.cancel();
+      _openTimer = Timer(const Duration(milliseconds: 200), () {
+        if (mounted && !widget.isSelectionActive()) _openMenu();
+      });
     }
   }
 
diff --git a/lib/frontend/widgets/chat_info/shared_content_tabs.dart b/lib/frontend/widgets/chat_info/shared_content_tabs.dart
index aee381d..1b8e11d 100644
--- a/lib/frontend/widgets/chat_info/shared_content_tabs.dart
+++ b/lib/frontend/widgets/chat_info/shared_content_tabs.dart
@@ -87,7 +87,11 @@ Widget _emptyState(ColorScheme cs, String label, IconData icon) {
     child: Column(
       mainAxisSize: MainAxisSize.min,
       children: [
-        Icon(icon, color: cs.onSurfaceVariant.withValues(alpha: 0.35), size: 48),
+        Icon(
+          icon,
+          color: cs.onSurfaceVariant.withValues(alpha: 0.35),
+          size: 48,
+        ),
         const SizedBox(height: 12),
         Text(label, style: TextStyle(color: cs.onSurfaceVariant, fontSize: 15)),
       ],
@@ -220,7 +224,10 @@ void _notifySave(BuildContext context, MediaSaveResult result) {
       result.toGallery ? 'Сохранено в галерею' : 'Файл сохранён',
     );
   } else {
-    showCustomNotification(context, 'Не удалось сохранить: ${result.error ?? ''}');
+    showCustomNotification(
+      context,
+      'Не удалось сохранить: ${result.error ?? ''}',
+    );
   }
 }
 
@@ -452,6 +459,7 @@ class SharedMediaTab extends StatefulWidget {
   final String emptyLabel;
   final IconData emptyIcon;
   final void Function(String messageId, int time) onGoToMessage;
+  final ScrollController? scrollController;
 
   const SharedMediaTab({
     super.key,
@@ -462,6 +470,7 @@ class SharedMediaTab extends StatefulWidget {
     required this.emptyLabel,
     required this.emptyIcon,
     required this.onGoToMessage,
+    this.scrollController,
   });
 
   @override
@@ -474,15 +483,33 @@ class _SharedMediaTabState extends State<SharedMediaTab> {
   bool _loading = true;
   bool _loadingMore = false;
   bool _canLoadMore = false;
+  int _total = 0;
   final List<SharedMediaItem> _items = [];
   final Set<String> _seen = {};
 
   @override
   void initState() {
     super.initState();
+    widget.scrollController?.addListener(_onScroll);
     _load(widget.anchorMessageId, initial: true);
   }
 
+  @override
+  void dispose() {
+    widget.scrollController?.removeListener(_onScroll);
+    super.dispose();
+  }
+
+  void _onScroll() {
+    if (!_hasMore || _loadingMore || _loading) return;
+    final controller = widget.scrollController;
+    if (controller == null || !controller.hasClients) return;
+    final position = controller.position;
+    if (position.pixels >= position.maxScrollExtent - 800) {
+      _loadMore();
+    }
+  }
+
   Future<void> _load(String anchor, {required bool initial}) async {
     final page = await sharedContentModule.fetchMedia(
       chatId: widget.chatId,
@@ -493,7 +520,6 @@ class _SharedMediaTabState extends State<SharedMediaTab> {
     );
     if (!mounted) return;
 
-    final pageMessageIds = page.items.map((e) => e.messageId).toSet();
     var added = 0;
     for (final item in page.items) {
       if (_seen.add(item.dedupKey)) {
@@ -502,16 +528,29 @@ class _SharedMediaTabState extends State<SharedMediaTab> {
       }
     }
     _items.sort((a, b) => b.time.compareTo(a.time));
+    _total = page.total > _total ? page.total : _total;
 
     setState(() {
-      _canLoadMore = added > 0 && pageMessageIds.length >= _pageSize;
+      _canLoadMore = added > 0 && _items.length < _total;
       _loading = false;
       _loadingMore = false;
     });
+
+    WidgetsBinding.instance.addPostFrameCallback((_) => _maybeAutoLoad());
+  }
+
+  void _maybeAutoLoad() {
+    if (!mounted || !_hasMore || _loadingMore) return;
+    final controller = widget.scrollController;
+    if (controller == null || !controller.hasClients) return;
+    final position = controller.position;
+    if (position.maxScrollExtent - position.pixels <= 800) {
+      _loadMore();
+    }
   }
 
   Future<void> _loadMore() async {
-    if (_loadingMore || _items.isEmpty) return;
+    if (_loadingMore || _loading || _items.isEmpty) return;
     setState(() => _loadingMore = true);
     await _load(_items.last.messageId, initial: false);
   }
@@ -589,7 +628,10 @@ class _SharedMediaTabState extends State<SharedMediaTab> {
       );
     }
 
-    return Column(crossAxisAlignment: CrossAxisAlignment.stretch, children: children);
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.stretch,
+      children: children,
+    );
   }
 
   Widget _mediaGrid(ColorScheme cs, List<SharedMediaItem> items) {
@@ -633,7 +675,9 @@ class _MediaTile extends StatelessWidget {
     final att = item.attachment;
     final video = att is VideoAttachment ? att : null;
     final duration = video?.duration ?? 0;
-    final thumb = att.baseUrl?.isNotEmpty == true ? att.baseUrl : att.previewData;
+    final thumb = att.baseUrl?.isNotEmpty == true
+        ? att.baseUrl
+        : att.previewData;
 
     return GestureDetector(
       onTap: () => _open(context),
@@ -771,7 +815,9 @@ class _FileRow extends StatelessWidget {
                   ),
                   const SizedBox(height: 2),
                   Text(
-                    ext.isEmpty ? formatBytes(size) : '$ext • ${formatBytes(size)}',
+                    ext.isEmpty
+                        ? formatBytes(size)
+                        : '$ext • ${formatBytes(size)}',
                     style: TextStyle(color: cs.onSurfaceVariant, fontSize: 13),
                   ),
                 ],
@@ -1094,7 +1140,10 @@ class _ProfileVoiceTileState extends State<_ProfileVoiceTile> {
             child: Container(
               width: 46,
               height: 46,
-              decoration: BoxDecoration(color: cs.primary, shape: BoxShape.circle),
+              decoration: BoxDecoration(
+                color: cs.primary,
+                shape: BoxShape.circle,
+              ),
               child: _loadingAudio
                   ? const Padding(
                       padding: EdgeInsets.all(13),
diff --git a/lib/frontend/widgets/message_actions_overlay.dart b/lib/frontend/widgets/message_actions_overlay.dart
index 801a8e4..8cee0f3 100644
--- a/lib/frontend/widgets/message_actions_overlay.dart
+++ b/lib/frontend/widgets/message_actions_overlay.dart
@@ -728,8 +728,7 @@ class _MessageActionsLayerState extends State<_MessageActionsLayer>
   }
 
   Rect _reactionAnchorRect() {
-    if (_effectiveStyle == MessageActionsStyle.list &&
-        _menuRect != Rect.zero) {
+    if (_effectiveStyle == MessageActionsStyle.list && _menuRect != Rect.zero) {
       return _menuRect;
     }
     if (_buttonHitRects.isNotEmpty) {
@@ -749,7 +748,8 @@ class _MessageActionsLayerState extends State<_MessageActionsLayer>
     final keyboardInset = MediaQuery.viewInsetsOf(context).bottom;
 
     final safeTop = padding.top + 8;
-    final safeBottom = size.height - math.max(padding.bottom, keyboardInset) - 8;
+    final safeBottom =
+        size.height - math.max(padding.bottom, keyboardInset) - 8;
 
     final quick = widget.quickReactions;
     const chevronCell = 38.0;
@@ -762,8 +762,10 @@ class _MessageActionsLayerState extends State<_MessageActionsLayer>
     final maxPillWidth = size.width - 16;
     double cell = maxCell;
     if (pillWidth > maxPillWidth) {
-      cell = ((maxPillWidth - pillPad * 2 - chevronCell) / quick.length)
-          .clamp(28.0, maxCell);
+      cell = ((maxPillWidth - pillPad * 2 - chevronCell) / quick.length).clamp(
+        28.0,
+        maxCell,
+      );
       pillWidth = pillPad * 2 + quick.length * cell + chevronCell;
     }
 
@@ -777,7 +779,10 @@ class _MessageActionsLayerState extends State<_MessageActionsLayer>
     double pillTop = pillAbove
         ? anchor.top - gap - pillHeight
         : anchor.bottom + gap;
-    pillTop = pillTop.clamp(safeTop, math.max(safeTop, safeBottom - pillHeight));
+    pillTop = pillTop.clamp(
+      safeTop,
+      math.max(safeTop, safeBottom - pillHeight),
+    );
     final collapsed = Rect.fromLTWH(pillLeft, pillTop, pillWidth, pillHeight);
 
     final panelWidth = math.min(size.width - 24, 300.0);
@@ -796,13 +801,16 @@ class _MessageActionsLayerState extends State<_MessageActionsLayer>
       panelTop = math.max(safeTop, panelBottom - desiredHeight);
       panelHeight = panelBottom - panelTop;
     }
-    final expanded = Rect.fromLTWH(panelLeft, panelTop, panelWidth, panelHeight);
+    final expanded = Rect.fromLTWH(
+      panelLeft,
+      panelTop,
+      panelWidth,
+      panelHeight,
+    );
 
     final morph = Rect.lerp(collapsed, expanded, e)!;
     final radius = ui.lerpDouble(pillHeight / 2, 20.0, e)!;
-    final entryAlign = pillAbove
-        ? Alignment.bottomLeft
-        : Alignment.topLeft;
+    final entryAlign = pillAbove ? Alignment.bottomLeft : Alignment.topLeft;
 
     return IgnorePointer(
       ignoring: t < 0.5,
@@ -810,8 +818,7 @@ class _MessageActionsLayerState extends State<_MessageActionsLayer>
         opacity: t,
         child: Stack(
           children: [
-            if (e < 0.999)
-              _buildCloudTail(collapsed, pillAbove, cs, t, e),
+            if (e < 0.999) _buildCloudTail(collapsed, pillAbove, cs, t, e),
             Positioned.fromRect(
               rect: morph,
               child: Transform.scale(
@@ -979,10 +986,7 @@ class _MessageActionsLayerState extends State<_MessageActionsLayer>
       child: Opacity(
         opacity: fade,
         child: Stack(
-          children: [
-            _tailCircle(big, 8.0, cs),
-            _tailCircle(small, 5.0, cs),
-          ],
+          children: [_tailCircle(big, 8.0, cs), _tailCircle(small, 5.0, cs)],
         ),
       ),
     );
@@ -1429,42 +1433,45 @@ class _ReactionEmojiPickerState extends State<_ReactionEmojiPicker> {
   @override
   Widget build(BuildContext context) {
     final cs = Theme.of(context).colorScheme;
-    return Column(
-      children: [
-        _buildSearchField(cs),
-        Expanded(
-          child: !_loaded
-              ? const Center(
-                  child: SizedBox(
-                    width: 26,
-                    height: 26,
-                    child: CircularProgressIndicator(strokeWidth: 2.4),
+    return Material(
+      type: MaterialType.transparency,
+      child: Column(
+        children: [
+          _buildSearchField(cs),
+          Expanded(
+            child: !_loaded
+                ? const Center(
+                    child: SizedBox(
+                      width: 26,
+                      height: 26,
+                      child: CircularProgressIndicator(strokeWidth: 2.4),
+                    ),
+                  )
+                : _results.isEmpty
+                ? const SizedBox.shrink()
+                : GridView.builder(
+                    padding: const EdgeInsets.fromLTRB(8, 2, 8, 10),
+                    keyboardDismissBehavior:
+                        ScrollViewKeyboardDismissBehavior.onDrag,
+                    addAutomaticKeepAlives: false,
+                    gridDelegate:
+                        const SliverGridDelegateWithMaxCrossAxisExtent(
+                          maxCrossAxisExtent: 40,
+                          mainAxisSpacing: 2,
+                          crossAxisSpacing: 2,
+                        ),
+                    itemCount: _results.length,
+                    itemBuilder: (context, i) {
+                      final emoji = _results[i];
+                      return _EmojiCell(
+                        emoji: emoji,
+                        onTap: () => widget.onPick(emoji),
+                      );
+                    },
                   ),
-                )
-              : _results.isEmpty
-              ? const SizedBox.shrink()
-              : GridView.builder(
-                  padding: const EdgeInsets.fromLTRB(8, 2, 8, 10),
-                  keyboardDismissBehavior:
-                      ScrollViewKeyboardDismissBehavior.onDrag,
-                  addAutomaticKeepAlives: false,
-                  gridDelegate:
-                      const SliverGridDelegateWithMaxCrossAxisExtent(
-                        maxCrossAxisExtent: 40,
-                        mainAxisSpacing: 2,
-                        crossAxisSpacing: 2,
-                      ),
-                  itemCount: _results.length,
-                  itemBuilder: (context, i) {
-                    final emoji = _results[i];
-                    return _EmojiCell(
-                      emoji: emoji,
-                      onTap: () => widget.onPick(emoji),
-                    );
-                  },
-                ),
-        ),
-      ],
+          ),
+        ],
+      ),
     );
   }
 
@@ -1533,9 +1540,7 @@ class _EmojiCell extends StatelessWidget {
     return GestureDetector(
       behavior: HitTestBehavior.opaque,
       onTap: onTap,
-      child: Center(
-        child: Text(emoji, style: const TextStyle(fontSize: 22)),
-      ),
+      child: Center(child: Text(emoji, style: const TextStyle(fontSize: 22))),
     );
   }
 }