diff --git a/frontend/plugins/optimizeCssModules.ts b/frontend/plugins/optimizeCssModules.ts
index 2aa2a88..23d4278 100644
--- a/frontend/plugins/optimizeCssModules.ts
+++ b/frontend/plugins/optimizeCssModules.ts
@@ -68,4 +68,4 @@ export function optimizeCssModules(options?: OptimizeCssModuleOptions): Plugin {
             }
         })
     };
-};
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/frontend/src/core/components/Dialog.tsx b/frontend/src/core/components/Dialog.tsx
deleted file mode 100644
index b2247c9..0000000
--- a/frontend/src/core/components/Dialog.tsx
+++ /dev/null
@@ -1,45 +0,0 @@
-import type { Dialog as MduiDialog } from "mdui/components/dialog";
-import { useEffect, type Ref } from "react"
-import { createPortal } from "react-dom";
-import { id } from "@/utils/utils";
-import useCombinedRefs from "@/core/hooks/useCombinedRefs";
-
-export interface BaseDialogProps {
-    onOpenChange: (value: boolean) => void;
-    ref?: Ref<MduiDialog & HTMLElement>
-}
-
-export type FullDialogProps = React.ComponentPropsWithoutRef<"mdui-dialog"> & BaseDialogProps;
-
-export function MaterialDialog(props: FullDialogProps) {
-    const [setDialogRef, dialogRef] = useCombinedRefs(props.ref);
-
-    useEffect(() => {
-        const dialog = dialogRef.current;
-        if (!dialog) return;
-
-        const observer = new MutationObserver((mutations) => {
-            mutations.forEach((mutation) => {
-                if (mutation.type === "attributes" && mutation.attributeName === "open") {
-                    const isOpen = dialog.hasAttribute("open");
-                    if (isOpen !== props.open) {
-                        props.onOpenChange(isOpen);
-                    }
-                }
-            });
-        });
-
-        // Start observing the dialog element for attribute changes
-        observer.observe(dialog, {
-            attributes: true,
-            attributeFilter: ["open"]
-        });
-
-        // Cleanup observer
-        return () => {
-            observer.disconnect();
-        };
-    }, [dialogRef.current, props.open, props.onOpenChange]);
-
-    return createPortal(<mdui-dialog {...props} ref={setDialogRef} />, id("root"));
-}
\ No newline at end of file
diff --git a/frontend/src/css/_animations.scss b/frontend/src/css/_animations.scss
deleted file mode 100644
index e0a245f..0000000
--- a/frontend/src/css/_animations.scss
+++ /dev/null
@@ -1,119 +0,0 @@
-@keyframes fadeIn {
-    from {
-        opacity: 0;
-        transform: translateY(10px);
-    }
-
-    to {
-        opacity: 1;
-        transform: translateY(0);
-    }
-}
-
-.fade-in {
-    animation: fadeIn 0.3s ease forwards;
-}
-
-@keyframes fadeOutUp {
-    from {
-        opacity: 1;
-        transform: translateY(0);
-    }
-
-    to {
-        opacity: 0;
-        transform: translateY(-10px);
-    }
-}
-
-@keyframes fadeInDown {
-    from {
-        opacity: 0;
-        transform: translateY(-10px);
-    }
-
-    to {
-        opacity: 1;
-        transform: translateY(0);
-    }
-}
-
-@keyframes fadeInLeft {
-    from {
-        opacity: 0;
-        transform: translateX(10px);
-    }
-
-    to {
-        opacity: 1;
-        transform: translateX(0);
-    }
-}
-
-@keyframes fadeInUp {
-    from {
-        opacity: 0;
-        transform: translateY(10px);
-    }
-
-    to {
-        opacity: 1;
-        transform: translateY(0);
-    }
-}
-
-@keyframes fadeInUpLeft {
-    from {
-        opacity: 0;
-        transform: translate(10px, 10px);
-    }
-
-    to {
-        opacity: 1;
-        transform: translate(0, 0);
-    }
-}
-
-@keyframes fadeOutRight {
-    from {
-        opacity: 1;
-        transform: translateX(0);
-    }
-
-    to {
-        opacity: 0;
-        transform: translateX(10px);
-    }
-}
-
-@keyframes fadeOutDown {
-    from {
-        opacity: 1;
-        transform: translateY(0);
-    }
-
-    to {
-        opacity: 0;
-        transform: translateY(10px);
-    }
-}
-
-@keyframes fadeOutDownRight {
-    from {
-        opacity: 1;
-        transform: translate(0, 0);
-    }
-
-    to {
-        opacity: 0;
-        transform: translate(10px, 10px);
-    }
-}
-
-.chat-switch-out {
-    animation: fadeOutUp 0.2s ease forwards;
-}
-
-.chat-switch-in {
-    animation: fadeInDown 0.2s ease forwards;
-}
\ No newline at end of file
diff --git a/frontend/src/css/_components.scss b/frontend/src/css/_components.scss
index 0f08732..d7a4604 100644
--- a/frontend/src/css/_components.scss
+++ b/frontend/src/css/_components.scss
@@ -169,12 +169,6 @@ button, input {
     justify-content: center;
 }
 
-.search-result-headline {
-    display: flex;
-    align-items: center;
-    gap: 6px;
-}
-
 .dm-list-headline {
     display: flex;
     align-items: center;
diff --git a/frontend/src/css/style.scss b/frontend/src/css/style.scss
index 2aabfc6..9b1eb31 100644
--- a/frontend/src/css/style.scss
+++ b/frontend/src/css/style.scss
@@ -1,4 +1,3 @@
-@use "animations";
 @use "components";
 @use "colors" as *;
 @use "material" as *;
@@ -32,16 +31,6 @@ body, #root {
     flex-direction: column;
 }
 
-mdui-dialog {
-    > *:first-child {
-        margin-block-start: 0;
-    }
-
-    > *:last-child {
-        margin-block-end: 0;
-    }
-}
-
 mdui-icon {
     user-select: none;
 }
\ No newline at end of file
diff --git a/frontend/src/pages/chat/css/_animations.scss b/frontend/src/pages/chat/css/_animations.scss
deleted file mode 100644
index 23ff0a3..0000000
--- a/frontend/src/pages/chat/css/_animations.scss
+++ /dev/null
@@ -1,184 +0,0 @@
-@use "../../../css/colors" as *;
-@use "../../../css/material" as *;
-@use "sass:color";
-
-// Animation for reactions appearing/disappearing
-@keyframes messageReactionsFadeIn {
-    from {
-        opacity: 0;
-        transform: translateY(-10px);
-    }
-
-    to {
-        opacity: 1;
-        transform: translateY(0);
-    }
-}
-
-@keyframes reactionFadeIn {
-    from {
-        opacity: 0;
-        transform: scale(0.8);
-    }
-
-    to {
-        opacity: 1;
-        transform: scale(1);
-    }
-}
-
-@keyframes reactionFadeOut {
-    from {
-        opacity: 1;
-        transform: scale(1);
-    }
-
-    to {
-        opacity: 0;
-        transform: scale(0.8);
-    }
-}
-
-// Context menu wrapper animations
-@keyframes contextMenuEnter {
-    to {
-        opacity: 1;
-        transform: scale(1);
-    }
-}
-
-@keyframes contextMenuEnterLeft {
-    to {
-        opacity: 1;
-        transform: translateX(0) scale(1);
-    }
-}
-
-@keyframes contextMenuEnterUp {
-    to {
-        opacity: 1;
-        transform: translateY(0) scale(1);
-    }
-}
-
-@keyframes contextMenuEnterUpLeft {
-    to {
-        opacity: 1;
-        transform: translateX(0) translateY(0) scale(1);
-    }
-}
-
-@keyframes contextMenuClose {
-    to {
-        opacity: 0;
-        transform: scale(0.8);
-    }
-}
-
-@keyframes contextMenuCloseLeft {
-    to {
-        opacity: 0;
-        transform: translateX(-20px) scale(0.8);
-    }
-}
-
-@keyframes contextMenuCloseUp {
-    to {
-        opacity: 0;
-        transform: translateY(20px) scale(0.8);
-    }
-}
-
-@keyframes contextMenuCloseUpLeft {
-    to {
-        opacity: 0;
-        transform: translateX(-20px) translateY(20px) scale(0.8);
-    }
-}
-
-@keyframes emojiMenuEnter {
-    from {
-        opacity: 0;
-    }
-
-    to {
-        opacity: 1;
-    }
-}
-
-@keyframes emojiMenuEnterDown {
-    from {
-        opacity: 0;
-        transform: scaleY(0);
-        transform-origin: top;
-    }
-
-    to {
-        opacity: 1;
-        transform: scaleY(1);
-    }
-}
-
-@keyframes emojiMenuEnterUp {
-    from {
-        opacity: 0;
-        transform: scaleY(0);
-        transform-origin: bottom;
-    }
-
-    to {
-        opacity: 1;
-        transform: scaleY(1);
-    }
-}
-
-// Reaction bar animations
-@keyframes reactionBarEnter {
-    to {
-        opacity: 1;
-        transform: translateY(0) scale(1);
-    }
-}
-
-@keyframes reactionBarEnterLeft {
-    to {
-        opacity: 1;
-        transform: translateX(0) translateY(0) scale(1);
-    }
-}
-
-@keyframes reactionBarEnterUp {
-    to {
-        opacity: 1;
-        transform: translateY(0) scale(1);
-    }
-}
-
-@keyframes reactionBarEnterRight {
-    to {
-        opacity: 1;
-        transform: translateX(0) scale(1);
-    }
-}
-
-@keyframes reactionBarClose {
-    to {
-        opacity: 0;
-        transform: translateY(-20px) scale(0.9);
-    }
-}
-
-@keyframes reactionBarCloseLeft {
-    to {
-        opacity: 0;
-        transform: translateX(-20px) translateY(-20px) scale(0.9);
-    }
-}
-
-@keyframes reactionBarCloseUp {
-    to {
-        opacity: 0;
-        transform: translateY(20px) scale(0.9);
-    }
-}
-
diff --git a/frontend/src/pages/chat/css/callWindow.module.scss b/frontend/src/pages/chat/css/callWindow.module.scss
index 27ec968..473058f 100644
--- a/frontend/src/pages/chat/css/callWindow.module.scss
+++ b/frontend/src/pages/chat/css/callWindow.module.scss
@@ -73,6 +73,13 @@
         &.dragging {
             cursor: grabbing;
             box-shadow: 0 20px 60px rgba(0, 0, 0, 0.7);
+            transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1),
+                        height 0.4s cubic-bezier(0.4, 0, 0.2, 1),
+                        background-color 0.4s cubic-bezier(0.4, 0, 0.2, 1),
+                        backdrop-filter 0.4s cubic-bezier(0.4, 0, 0.2, 1),
+                        border 0.4s cubic-bezier(0.4, 0, 0.2, 1),
+                        border-radius 0.4s cubic-bezier(0.4, 0, 0.2, 1),
+                        box-shadow 0.4s cubic-bezier(0.4, 0, 0.2, 1);
         }
 
         .callHeader {
diff --git a/frontend/src/pages/chat/ui/right/ChatInputWrapper.tsx b/frontend/src/pages/chat/ui/right/ChatInputWrapper.tsx
index c7e62aa..a41c7b5 100644
--- a/frontend/src/pages/chat/ui/right/ChatInputWrapper.tsx
+++ b/frontend/src/pages/chat/ui/right/ChatInputWrapper.tsx
@@ -1,13 +1,13 @@
 import { useState, useEffect, useRef } from "react";
 import { motion, AnimatePresence } from "motion/react";
-import { MaterialDialog } from "@/core/components/Dialog";
 import { RichTextArea } from "@/core/components/RichTextArea";
 import type { Message } from "@/core/types";
 import Quote from "@/core/components/Quote";
 import { useImmer } from "use-immer";
 import { EmojiMenu } from "./EmojiMenu";
-import { MaterialButton, MaterialIcon, MaterialIconButton } from "@/utils/material";
+import { MaterialIcon, MaterialIconButton } from "@/utils/material";
 import styles from "@/pages/chat/css/ChatInput.module.scss";
+import { alert } from "mdui/functions/alert";
 
 interface ChatInputWrapperProps {
     onSendMessage: (message: string, files: File[]) => void;
@@ -47,7 +47,6 @@ export function ChatInputWrapper(
     const [message, setMessage] = useState("");
     const [selectedFiles, setSelectedFiles] = useImmer<File[]>([]);
     const [attachmentsVisible, setAttachmentsVisible] = useState(false);
-    const [errorOpen, setErrorOpen] = useState(false);
     const [emojiMenuOpen, setEmojiMenuOpen] = useState(false);
     const [emojiMenuPosition, setEmojiMenuPosition] = useState({ x: 0, y: 0 });
     const chatInputWrapperRef = useRef<HTMLDivElement>(null);
@@ -116,9 +115,13 @@ export function ChatInputWrapper(
             const totalSize = selectedFiles.reduce((acc, f) => acc + f.size, 0);
             const limit = 4 * 1024 * 1024 * 1024; // 4GB
             if (totalSize > limit) {
-                setErrorOpen(true);
+                alert({
+                    headline: "Ошибка",
+                    description: "Общий размер вложений превышает 4 ГБ."
+                });
                 return;
             }
+
             if (editingMessage && onSaveEdit) {
                 onSaveEdit(message);
                 setMessage("");
@@ -249,11 +252,6 @@ export function ChatInputWrapper(
                     </div>
                 </div>
             </form>
-            <MaterialDialog open={errorOpen} onOpenChange={setErrorOpen} close-on-overlay-click close-on-esc>
-                <div slot="headline">Ошибка</div>
-                <div>Общий размер вложений превышает 4 ГБ.</div>
-                <MaterialButton slot="action" onClick={() => setErrorOpen(false)}>Закрыть</MaterialButton>
-            </MaterialDialog>
 
             <EmojiMenu
                 isOpen={emojiMenuOpen}
diff --git a/frontend/src/pages/chat/ui/right/calls/CallWindow.tsx b/frontend/src/pages/chat/ui/right/calls/CallWindow.tsx
index 3420dc2..001bf3c 100644
--- a/frontend/src/pages/chat/ui/right/calls/CallWindow.tsx
+++ b/frontend/src/pages/chat/ui/right/calls/CallWindow.tsx
@@ -132,13 +132,13 @@ export function CallWindow() {
                             style={isMinimized ? {
                                 left: pipPosition.x,
                                 top: pipPosition.y
-                            } : undefined}
+                            } : {}}
                             initial={false}
                             exit={isMinimized ?
                                 { opacity: 0, scale: 0.7 } :
                                 { opacity: 0, y: -100 }
                             }
-                            transition={{ 
+                            transition={isDragging ? { duration: 0 } : { 
                                 opacity: { duration: 0.4 },
                                 scale: { duration: 0.4 },
                                 y: { duration: 0.4 }