diff --git a/package.json b/package.json
index 74c5e26..f803480 100755
--- a/package.json
+++ b/package.json
@@ -27,7 +27,8 @@
     "reactflow": "^11.11.4",
     "vite-plugin-svgr": "^4.3.0",
     "react-scripts": "^5.0.1",
-    "socket.io-client": "^4.8.1"
+    "socket.io-client": "^4.8.1",
+    "antd": "^5.24.7"
   },
   "devDependencies": {
     "@eslint/js": "^9.17.0",
diff --git a/src/App.jsx b/src/App.jsx
index b0345dd..c2372e5 100755
--- a/src/App.jsx
+++ b/src/App.jsx
@@ -1,37 +1,109 @@
-import React, { useState, useMemo } from "react";
-import { ThemeProvider, CssBaseline, Switch, Box } from "@mui/material";
+import React, { useState, useMemo, useEffect } from "react";
+import { ThemeProvider, CssBaseline, Switch, Box, CircularProgress } from "@mui/material";
 import Dashboard from "./Components/Layout/Dashboard";
 import LoginModal from "./Components/UI/LoginModal";
 import { lightTheme, darkTheme } from "./Style/theme";
-import Logo from './assets/images/logo.svg?react';  // Импорт как компонента
+import Logo from './assets/images/logo.svg?react';
+import { checkAuth } from "./Components/UI/auth"; 
+import axios from 'axios';
 
 function App() {
-    const [isAuthenticated, setIsAuthenticated] = useState(false);
-    const [showLoginModal, setShowLoginModal] = useState(true);
+    const [authState, setAuthState] = useState({
+        isAuthenticated: false,
+        isLoading: true,
+        user: null
+    });
+    const [showLoginModal, setShowLoginModal] = useState(false);
     const [isDarkMode, setIsDarkMode] = useState(
         window.matchMedia("(prefers-color-scheme: dark)").matches
     );
 
     const theme = useMemo(() => (isDarkMode ? darkTheme : lightTheme), [isDarkMode]);
 
-    const handleLogin = () => {
-        setIsAuthenticated(true);
+    useEffect(() => {
+        const verifyAuth = async () => {
+            try {
+                const authStatus = await checkAuth();
+
+                setAuthState({
+                    isAuthenticated: authStatus.isAuthenticated,
+                    isLoading: false,
+                    user: authStatus.user || null
+                });
+
+                setShowLoginModal(!authStatus.isAuthenticated);
+            } catch (error) {
+                console.error('Auth verification error:', error);
+                setAuthState({
+                    isAuthenticated: false,
+                    isLoading: false,
+                    user: null
+                });
+                setShowLoginModal(true);
+            }
+        };
+
+        verifyAuth();
+    }, []);
+
+    const handleLogin = (userData) => {
+        setAuthState({
+            isAuthenticated: true,
+            isLoading: false,
+            user: userData
+        });
         setShowLoginModal(false);
     };
 
+    const handleLogout = async () => {
+        try {
+            await axios.get(`${import.meta.env.VITE_BACK_URL}/api/metrics`, {
+                method: 'POST',
+                credentials: 'include'
+            });
+            localStorage.removeItem('access_token');
+            setAuthState({
+                isAuthenticated: false,
+                isLoading: false,
+                user: null
+            });
+            setShowLoginModal(true);
+        } catch (error) {
+            console.error('Logout failed:', error);
+        }
+    };
+
+    if (authState.isLoading) {
+        return (
+            <ThemeProvider theme={theme}>
+                <CssBaseline />
+                <Box sx={{
+                    display: 'flex',
+                    justifyContent: 'center',
+                    alignItems: 'center',
+                    height: '100vh',
+                    flexDirection: 'column',
+                    gap: 2
+                }}>
+                    <CircularProgress />
+                    <p>Проверка авторизации...</p>
+                </Box>
+            </ThemeProvider>
+        );
+    }
+
     return (
         <ThemeProvider theme={theme}>
             <CssBaseline />
-            {!isAuthenticated && showLoginModal ? (
+            {!authState.isAuthenticated && showLoginModal ? (
                 <>
-                    {/* Логотип */}
                     <Box
                         component="div"
                         sx={{
                             position: "fixed",
                             top: 24,
-                            left: "50%",    // Сдвигаем начало логотипа в центр
-                            transform: "translateX(-50%)", // Смещаем назад на половину ширины логотипа
+                            left: "50%",
+                            transform: "translateX(-50%)",
                             zIndex: 1200,
                             '& svg': {
                                 width: 400,
@@ -55,9 +127,15 @@ function App() {
                     bgcolor: "background.default",
                     color: "text.primary"
                 }}>
-                    <Dashboard />
+                    <Dashboard
+                        user={authState.user}
+                        onLogout={handleLogout}
+                    />
                     <Box sx={{ position: "absolute", top: 10, right: 10 }}>
-                        <Switch checked={isDarkMode} onChange={() => setIsDarkMode((prev) => !prev)} />
+                        <Switch
+                            checked={isDarkMode}
+                            onChange={() => setIsDarkMode((prev) => !prev)}
+                        />
                     </Box>
                 </Box>
             )}
diff --git a/src/Charts/Components/LineChartComponent.jsx b/src/Charts/Components/LineChartComponent.jsx
index 3c548ac..c48d46f 100755
--- a/src/Charts/Components/LineChartComponent.jsx
+++ b/src/Charts/Components/LineChartComponent.jsx
@@ -203,7 +203,7 @@ const LineChartComponent = ({
                     {instanceKeys.map((instance, index) => (
                         <Line
                             key={instance}
-                            type="monotone"
+                            type=""
                             dataKey={instance}
                             name={instance}
                             stroke={colors[index % colors.length]}
diff --git a/src/Charts/PrometheusChart.jsx b/src/Charts/PrometheusChart.jsx
index 04c9e20..420fd75 100755
--- a/src/Charts/PrometheusChart.jsx
+++ b/src/Charts/PrometheusChart.jsx
@@ -1,5 +1,5 @@
 import React, { useEffect, useState, useRef, useCallback } from 'react';
-import { io } from 'socket.io-client';
+import { webSocketManager } from './WebSocketManager';
 import LineChartComponent from './Components/LineChartComponent';
 import { TimeRangeSelector } from './Components/TimeRangeSelector';
 import { ConnectionStatusIndicator } from './Components/ConnectionStatusIndicator';
@@ -19,7 +19,6 @@ const PrometheusChart = ({ metricName }) => {
     const [isSelectingRange, setIsSelectingRange] = useState(false);
     const [lastCustomRange, setLastCustomRange] = useState(null);
     const intervalRef = useRef(null);
-    const socketRef = useRef(null);
     const debounceRef = useRef(null);
 
     const formatTime = useCallback((timestamp, rangeSeconds) => {
@@ -70,25 +69,6 @@ const PrometheusChart = ({ metricName }) => {
         return 1800;                     // > 24 часов
     }, []);
 
-    const fetchData = useCallback(() => {
-
-        if (isSelectingRange) return;
-
-        const now = Math.floor(Date.now() / 1000);
-        const start = now - selectedRange.value;
-        const end = now;
-        const step = calculateStep(start, end);
-
-        if (socketRef.current?.connected) {
-            socketRef.current.emit('get-metrics', {
-                metric: metricName,
-                start,
-                end,
-                step,
-                _t: Date.now()
-            });
-        }
-    }, [metricName, selectedRange.value, isSelectingRange]);
 
     const processMetricsData = useCallback((response) => {
         console.log('Processing metrics data:', response);
@@ -137,58 +117,32 @@ const PrometheusChart = ({ metricName }) => {
         });
     }, [metricName, selectedRange.value, formatTime, useCustomRange, startDate, endDate]);
 
-    const setupWebSocket = useCallback(() => {
-        if (socketRef.current) {
-            // Если соединение уже существует, возвращаем его
-            if (socketRef.current.connected) return socketRef.current;
-            // Если соединение в процессе переподключения, тоже возвращаем
-            if (socketRef.current.reconnecting) return socketRef.current;
-        }
-        //VITE_BACK_WS_URL
-        const socket = io(`${import.meta.env.VITE_BACK_WS_URL}/api/metrics-ws`, {
-            transports: ['websocket'],
-            reconnection: true,
-            reconnectionAttempts: Infinity,
-            reconnectionDelay: 1000,
-            reconnectionDelayMax: 5000,
-        });
+    const fetchData = useCallback(() => {
+        if (isSelectingRange) return;
 
-        socketRef.current = socket;
+        const now = Math.floor(Date.now() / 1000);
+        const start = now - selectedRange.value;
+        const end = now;
+        const step = calculateStep(start, end);
 
-        socket.on('connect', () => {
-            console.log('WebSocket connected');
-            setConnectionStatus('connected');
-            fetchData();
-        });
-
-        socket.on('disconnect', (reason) => {
-            console.log('WebSocket disconnected:', reason);
-            setConnectionStatus('disconnected');
-            if (reason === 'io server disconnect') socket.connect();
-        });
-
-        socket.on('connect_error', (error) => {
-            console.error('WebSocket connection error:', error);
-            setConnectionStatus('error');
-            setTimeout(() => socket.connect(), 1000);
-        });
-
-        socket.on('metrics-data', (response) => {
-            console.log('Received raw metrics data:', response);
-            processMetricsData(response);
-        });
-
-        socket.on('metrics-error', (error) => {
-            console.error('Metrics error:', error);
-            setConnectionStatus('error');
-        });
-
-        return socket;
-    }, []);
+        webSocketManager.getMetricsRange(metricName, start, end, step)
+            .then(data => {
+                processMetricsData({ metric: metricName, data });
+            })
+            .catch(error => {
+                console.error('Error fetching metrics:', error);
+            });
+    }, [metricName, selectedRange.value, isSelectingRange, calculateStep, processMetricsData]);
 
     const fetchCustomRangeData = useCallback(async () => {
+        // Добавляем проверку на валидность дат
+        if (!startDate || !endDate || startDate >= endDate) {
+            console.error('Invalid date range');
+            return;
+        }
+
         const start = Math.floor(startDate.getTime() / 1000);
-        const end = Math.floor(endDate.getTime() / 1000);
+        const end = Math.ceil(endDate.getTime() / 1000); // Используем Math.ceil для конечной даты
         const rangeSeconds = end - start;
 
         try {
@@ -202,11 +156,11 @@ const PrometheusChart = ({ metricName }) => {
             });
 
             if (response.data?.length) {
-                // Преобразуем данные перед передачей в processMetricsData
+                // Добавляем нормализацию timestamp
                 const processedData = response.data.map(item => ({
                     ...item,
-                    timestamp: item.timestamp, // оставляем в секундах - processMetricsData конвертирует
-                    value: item.value.toString()
+                    timestamp: item.timestamp > 1e12 ? item.timestamp : item.timestamp * 1000,
+                    value: parseFloat(item.value)
                 }));
 
                 processMetricsData({
@@ -220,8 +174,7 @@ const PrometheusChart = ({ metricName }) => {
     }, [metricName, startDate, endDate, calculateStep, processMetricsData]);
 
 
-    const handleRangeChange = useCallback((event) => {
-        // Очищаем текущий интервал
+    const handleRangeChange = useCallback(async (event) => {
         if (intervalRef.current) {
             clearInterval(intervalRef.current);
             intervalRef.current = null;
@@ -230,9 +183,10 @@ const PrometheusChart = ({ metricName }) => {
         const selectedValue = event.target.value;
         const range = TIME_RANGES.find(r => r.value === parseInt(selectedValue, 10));
 
+        // Полный сброс состояния перед загрузкой новых данных
+        setChartData(null);
         setSelectedRange(range);
         setUseCustomRange(false);
-        setChartData(null);
         setSelectedGraphRange(null);
         setFilteredData(null);
 
@@ -240,20 +194,12 @@ const PrometheusChart = ({ metricName }) => {
         setEndDate(now);
         setStartDate(new Date(now.getTime() - range.value * 1000));
 
-        // Переподключение сокета
-        if (!socketRef.current?.connected) {
-            socketRef.current?.connect();
-        }
-    }, []);
+        // Ждем завершения обновления состояния перед загрузкой
+        await new Promise(resolve => setTimeout(resolve, 0));
+        fetchData();
+    }, [fetchData]);
 
     const handleCustomRangeChange = useCallback(() => {
-        // Отключаем WebSocket соединение
-        if (socketRef.current?.connected) {
-            socketRef.current.disconnect();
-            setConnectionStatus('disconnected');
-        }
-
-        // Очищаем интервал обновления
         if (intervalRef.current) {
             clearInterval(intervalRef.current);
             intervalRef.current = null;
@@ -266,25 +212,7 @@ const PrometheusChart = ({ metricName }) => {
         fetchCustomRangeData();
     }, [fetchCustomRangeData]);
 
-    const handleResetZoom = useCallback(() => {
-        setSelectedGraphRange(null);
-        setFilteredData(null);
-        setIsSelectingRange(false);
 
-        if (useCustomRange) {
-            fetchCustomRangeData();
-        } else {
-            if (!socketRef.current?.connected) {
-                socketRef.current?.connect();
-            }
-            fetchData();
-        }
-
-        if (lastCustomRange) {
-            handleRangeSelect(lastCustomRange);
-            return;
-        }
-    }, [fetchData, fetchCustomRangeData, useCustomRange]);
 
     const interpolateData = useCallback((data, targetPointCount) => {
         if (!data || data.length < 2) return data;
@@ -337,10 +265,6 @@ const PrometheusChart = ({ metricName }) => {
         setIsSelectingRange(true);
         setSelectedGraphRange(range);
 
-        // Отключаем автоматические обновления
-        if (socketRef.current?.connected) {
-            socketRef.current.disconnect();
-        }
         if (intervalRef.current) {
             clearInterval(intervalRef.current);
             intervalRef.current = null;
@@ -366,23 +290,52 @@ const PrometheusChart = ({ metricName }) => {
         setIsSelectingRange(false);
     }, [chartData, interpolateData, formatTime]);
 
-    useEffect(() => {
-        const socket = setupWebSocket();
-        return () => {
-            clearInterval(intervalRef.current);
-            socket.disconnect();
-        };
-    }, [setupWebSocket]);
+    const handleResetZoom = useCallback(() => {
+        setSelectedGraphRange(null);
+        setFilteredData(null);
+        setIsSelectingRange(false);
+
+        if (useCustomRange) {
+            fetchCustomRangeData();
+        } else {
+            fetchData();
+        }
+
+        if (lastCustomRange) {
+            handleRangeSelect(lastCustomRange);
+        }
+    }, [fetchData, fetchCustomRangeData, useCustomRange, lastCustomRange, handleRangeSelect]);
+
+    useEffect(() => {
+        // Обработчик данных с сервера
+        const handleMetricsData = (data) => {
+            processMetricsData({ metric: metricName, data });
+        };
+
+        // Подписываемся на обновления метрики
+        const unsubscribe = webSocketManager.subscribe(metricName, handleMetricsData);
+
+        // Подписываемся на изменения статуса соединения
+        const unsubscribeStatus = webSocketManager.onConnectionStatusChange(setConnectionStatus);
+
+        return () => {
+            // Отписываемся при размонтировании компонента
+            unsubscribe();
+            unsubscribeStatus();
+
+            // Очищаем интервал обновления
+            if (intervalRef.current) {
+                clearInterval(intervalRef.current);
+            }
+        };
+    }, [metricName, processMetricsData]);
 
-    // Обновим useEffect для кастомного диапазона
     useEffect(() => {
         if (useCustomRange && !isSelectingRange) {
-            // Очищаем предыдущий таймер
             if (debounceRef.current) {
                 clearTimeout(debounceRef.current);
             }
 
-            // Устанавливаем новый таймер с задержкой 500 мс
             debounceRef.current = setTimeout(() => {
                 fetchCustomRangeData();
             }, 500);
@@ -406,12 +359,11 @@ const PrometheusChart = ({ metricName }) => {
             }
         };
 
-        // Очищаем предыдущий интервал
         if (intervalRef.current) {
             clearInterval(intervalRef.current);
         }
 
-        // Запускаем сразу и затем по интервалу
+
         fetchDataWrapper();
         intervalRef.current = setInterval(fetchDataWrapper, selectedRange.interval);
 
@@ -490,5 +442,4 @@ const PrometheusChart = ({ metricName }) => {
     );
 };
 
-export default React.memo(PrometheusChart);
-
+export default React.memo(PrometheusChart);
\ No newline at end of file
diff --git a/src/Charts/WebSocketManager.jsx b/src/Charts/WebSocketManager.jsx
new file mode 100644
index 0000000..aa4a46b
--- /dev/null
+++ b/src/Charts/WebSocketManager.jsx
@@ -0,0 +1,115 @@
+// src/services/WebSocketManager.js
+import { io } from 'socket.io-client';
+
+class WebSocketManager {
+  constructor() {
+    this.socket = null;
+    this.subscribers = new Map();
+    this.connectionStatus = 'disconnected';
+    this.connectionCallbacks = new Set();
+  }
+
+  connect() {
+    if (this.socket && (this.socket.connected || this.socket.reconnecting)) {
+      return this.socket;
+    }
+
+    this.socket = io(`${import.meta.env.VITE_BACK_WS_URL}/api/metrics-ws`, {
+      transports: ['websocket'],
+      reconnection: true,
+      reconnectionAttempts: Infinity,
+      reconnectionDelay: 1000,
+      reconnectionDelayMax: 5000,
+    });
+
+    this.socket.on('connect', () => {
+      this.connectionStatus = 'connected';
+      this.notifyConnectionStatus();
+    });
+
+    this.socket.on('disconnect', (reason) => {
+      this.connectionStatus = 'disconnected';
+      this.notifyConnectionStatus();
+      if (reason === 'io server disconnect') this.socket.connect();
+    });
+
+    this.socket.on('connect_error', (error) => {
+      this.connectionStatus = 'error';
+      this.notifyConnectionStatus();
+      setTimeout(() => this.socket.connect(), 1000);
+    });
+
+    this.socket.on('metrics-data', (response) => {
+      const callbacks = this.subscribers.get(response.metric);
+      if (callbacks) {
+        callbacks.forEach(callback => callback(response.data));
+      }
+    });
+
+    return this.socket;
+  }
+
+  subscribe(metricName, callback) {
+    this.connect();
+
+    if (!this.subscribers.has(metricName)) {
+      this.subscribers.set(metricName, new Set());
+      this.socket.emit('subscribe-metric', {
+        metric: metricName,
+        isSubscription: true // Флаг для подписки
+      });
+    }
+
+    this.subscribers.get(metricName).add(callback);
+
+    return () => this.unsubscribe(metricName, callback);
+  }
+
+  unsubscribe(metricName, callback) {
+    const callbacks = this.subscribers.get(metricName);
+    if (callbacks) {
+      callbacks.delete(callback);
+      if (callbacks.size === 0) {
+        this.subscribers.delete(metricName);
+        this.socket.emit('unsubscribe-metric', { metric: metricName });
+      }
+    }
+  }
+
+  getMetricsRange(metricName, start, end, step) {
+    return new Promise((resolve, reject) => {
+      const timer = setTimeout(() => {
+        reject(new Error('Timeout while waiting for metrics data'));
+      }, 10000);
+
+      // Временный обработчик для разового запроса
+      const tempHandler = (data) => {
+        clearTimeout(timer);
+        this.socket.off(`metrics-range-${metricName}`, tempHandler);
+        resolve(data);
+      };
+
+      this.socket.on(`metrics-range-${metricName}`, tempHandler);
+      this.socket.emit('get-metrics', {
+        metric: metricName,
+        start,
+        end,
+        step,
+        isRangeQuery: true // Флаг для разового запроса
+      });
+    });
+  }
+
+  onConnectionStatusChange(callback) {
+    this.connectionCallbacks.add(callback);
+    callback(this.connectionStatus);
+    return () => this.connectionCallbacks.delete(callback);
+  }
+
+  notifyConnectionStatus() {
+    this.connectionCallbacks.forEach(callback => callback(this.connectionStatus));
+  }
+}
+
+
+export const webSocketManager = new WebSocketManager();
\ No newline at end of file
diff --git a/src/Components/Layout/Dashboard.jsx b/src/Components/Layout/Dashboard.jsx
index c979b4c..9b66e58 100755
--- a/src/Components/Layout/Dashboard.jsx
+++ b/src/Components/Layout/Dashboard.jsx
@@ -48,9 +48,9 @@ const MainContent = styled(Box)(({ theme }) => ({
 
 const Content = styled(Box)(({ theme }) => ({
   backgroundColor: theme.palette.custom.modalBackground,
-  padding: theme.spacing(2.5),
+  //padding: theme.spacing(2.5),
   borderRadius: '10px',
-  boxShadow: theme.shadows[2],
+  //boxShadow: theme.shadows[2],
   maxWidth: '100%',
   overflow: 'auto',
   color: theme.palette.custom.modalText,
diff --git a/src/Components/Layout/SidebarMenu.jsx b/src/Components/Layout/SidebarMenu.jsx
index 379d7db..7efd192 100644
--- a/src/Components/Layout/SidebarMenu.jsx
+++ b/src/Components/Layout/SidebarMenu.jsx
@@ -1,4 +1,4 @@
-import React, { useState } from "react";
+import React, { useState, useEffect } from "react";
 import {
     Drawer,
     List,
@@ -15,6 +15,7 @@ import {
 } from "@mui/icons-material";
 import MenuItem from "./SidebarMenuComponents/MenuItem";
 import SidebarFooter from "./SidebarMenuComponents/SidebarFooter";
+import { statusManager1 } from "../TreeChart/dataUtils";
 
 const SidebarResizer = styled('div')(({ theme }) => ({
     width: "5px",
@@ -34,6 +35,17 @@ const SidebarResizer = styled('div')(({ theme }) => ({
 const SidebarMenu = ({ data, onOpenTab, sidebarWidth, startResizing }) => {
     const [collapsed, setCollapsed] = useState(false);
     const [hovered, setHovered] = useState(false);
+    const [menuData, setMenuData] = useState(data);
+
+    // Обновляем статусы при изменении данных
+    useEffect(() => {
+        if (data) {
+            // Создаем глубокую копию данных, чтобы не мутировать исходные
+            const dataCopy = JSON.parse(JSON.stringify(data));
+            statusManager1.updateStatuses(dataCopy);
+            setMenuData(dataCopy);
+        }
+    }, [data]);
 
     const handleToggleCollapse = () => {
         setCollapsed(!collapsed);
@@ -126,11 +138,13 @@ const SidebarMenu = ({ data, onOpenTab, sidebarWidth, startResizing }) => {
                                 Меню
                             </Typography>
                         )}
-                        <MenuItem
-                            item={data}
-                            onSelectItem={handleSelectItem}
-                            collapsed={collapsed}
-                        />
+                        {menuData && (
+                            <MenuItem
+                                item={menuData}
+                                onSelectItem={handleSelectItem}
+                                collapsed={collapsed}
+                            />
+                        )}
                     </List>
 
                     {/* Футер */}
diff --git a/src/Components/Layout/SidebarMenuComponents/MenuItem.jsx b/src/Components/Layout/SidebarMenuComponents/MenuItem.jsx
index 69a105c..6d0eba6 100644
--- a/src/Components/Layout/SidebarMenuComponents/MenuItem.jsx
+++ b/src/Components/Layout/SidebarMenuComponents/MenuItem.jsx
@@ -8,10 +8,14 @@ import {
     styled
 } from "@mui/material";
 import { ExpandLess, ExpandMore, Folder, FolderOpen } from "@mui/icons-material";
+import { getStatusColor } from "../../TreeChart/dataUtils";
+
+
 
 const StyledListItem = styled(ListItem)(({ theme, level }) => ({
     cursor: "pointer",
     paddingLeft: theme.spacing(2 + level * 2),
+    position: 'relative', // Добавляем для позиционирования индикатора
     '&:hover': {
         backgroundColor: theme.palette.action.hover,
     },
@@ -20,6 +24,17 @@ const StyledListItem = styled(ListItem)(({ theme, level }) => ({
     },
 }));
 
+const StatusIndicator = styled('div')(({ theme, status }) => ({
+    position: 'absolute',
+    left: 0,
+    top: 0,
+    bottom: 0,
+    width: '4px',
+    backgroundColor: status ? getStatusColor(status) : 'transparent',
+    borderTopRightRadius: '4px',
+    borderBottomRightRadius: '4px',
+}));
+
 const IconWrapper = styled('div')(({ theme }) => ({
     cursor: "pointer",
     borderRadius: theme.shape.borderRadius,
@@ -33,7 +48,6 @@ const MenuItem = ({ item, onSelectItem, level = 0, collapsed }) => {
     const [isOpen, setIsOpen] = React.useState(false);
     const hasChildren = Array.isArray(item.items) && item.items.length > 0;
 
-
     const handleToggle = (e) => {
         e.stopPropagation();
         setIsOpen(!isOpen);
@@ -52,17 +66,20 @@ const MenuItem = ({ item, onSelectItem, level = 0, collapsed }) => {
                 onClick={hasChildren ? handleToggle : handleOpenTab}
                 level={level}
                 sx={{
-                    pl: collapsed ? 2 : 2 + level * 2, // Адаптируем отступы
+                    pl: collapsed ? 2 : 2 + level * 2,
                     justifyContent: collapsed ? 'center' : 'flex-start',
                 }}
             >
+                {/* Индикатор статуса */}
+                {!collapsed && <StatusIndicator status={item.status} />}
+
                 <ListItemIcon sx={{ minWidth: collapsed ? 'auto' : 56 }}>
                     <IconWrapper onClick={handleOpenTab}>
                         {hasChildren ? (isOpen ? <FolderOpen /> : <Folder />) : <Folder />}
                     </IconWrapper>
                 </ListItemIcon>
 
-                {!collapsed && ( // Показываем текст только в развернутом состоянии
+                {!collapsed && (
                     <>
                         <ListItemText
                             primary={item.title}
@@ -75,7 +92,7 @@ const MenuItem = ({ item, onSelectItem, level = 0, collapsed }) => {
                 )}
             </StyledListItem>
 
-            {hasChildren && !collapsed && ( // Показываем детей только в развернутом состоянии
+            {hasChildren && !collapsed && (
                 <Collapse in={isOpen} timeout="auto" unmountOnExit>
                     <List component="div" disablePadding>
                         {item.items.map((child, index) => (
@@ -94,7 +111,6 @@ const MenuItem = ({ item, onSelectItem, level = 0, collapsed }) => {
     );
 };
 
-// Вспомогательная функция (остается без изменений)
 const getAllChildren = (node) => {
     let children = [];
     if (node.items && node.items.length > 0) {
diff --git a/src/Components/Layout/SidebarMenuComponents/StatusIndicator.jsx b/src/Components/Layout/SidebarMenuComponents/StatusIndicator.jsx
new file mode 100644
index 0000000..7a291db
--- /dev/null
+++ b/src/Components/Layout/SidebarMenuComponents/StatusIndicator.jsx
@@ -0,0 +1,25 @@
+import React from "react";
+import { styled } from "@mui/material";
+
+const StatusIndicator = styled('div')(({ theme, status }) => ({
+    position: 'absolute',
+    left: 0,
+    top: 0,
+    bottom: 0,
+    width: '4px',
+    backgroundColor: getStatusColor(status),
+    borderRadius: '0 2px 2px 0',
+    transition: 'background-color 0.3s ease'
+}));
+
+const getStatusColor = (status) => {
+    switch (status) {
+        case 'red': return '#F44336';
+        case 'orange': return '#FF9800';
+        case 'yellow': return '#cebd21';
+        case 'green': return '#4CAF50';
+        default: return 'transparent';
+    }
+};
+
+export default StatusIndicator;
\ No newline at end of file
diff --git a/src/Components/TreeChart/tabContent.jsx b/src/Components/TreeChart/tabContent.jsx
index 4072401..a7845f8 100755
--- a/src/Components/TreeChart/tabContent.jsx
+++ b/src/Components/TreeChart/tabContent.jsx
@@ -1,4 +1,6 @@
 import React, { lazy, Suspense } from "react";
+import Skeleton from '@mui/material/Skeleton';
+import Box from '@mui/material/Box';
 
 const PrometheusChart = lazy(() => import('../../Charts/PrometheusChart'));
 import LazyChartBatchRenderer from "../hooks/LazyChartBatchRender";
@@ -22,9 +24,32 @@ const getAllChildIds = (node) => {
   return ids;
 };
 
+// Компонент Skeleton для графика
+const ChartSkeleton = () => (
+  <Box sx={{ width: '100%' }}>
+    <Skeleton variant="text" width="60%" height={30} /> {/* Заголовок */}
+    <Skeleton variant="rectangular" width="100%" height={300} sx={{ mt: 2 }} /> {/* График */}
+  </Box>
+);
+
+// Компонент Skeleton для родительского контейнера
+const ContainerSkeleton = () => (
+  <Box sx={{ width: '100%' }}>
+    <Skeleton variant="text" width="40%" height={40} /> {/* Заголовок */}
+    <Skeleton variant="text" width="80%" height={20} sx={{ mt: 1 }} /> {/* Описание */}
+    {/* Место для дочерних элементов */}
+    <Box sx={{ mt: 2 }}>
+      {[...Array(3)].map((_, i) => (
+        <ChartSkeleton key={i} />
+      ))}
+    </Box>
+  </Box>
+);
+
 const tabContent = (data) => {
   const tabContent = {};
 
+  // Функция для рекурсивного обхода и сбора данных
   // Функция для рекурсивного обхода и сбора данных
   const generateContent = (nodes) => {
     nodes.forEach((node) => {
@@ -36,9 +61,11 @@ const tabContent = (data) => {
         const content = (
           <div>
             <h2>{node.title}</h2>
-            <LazyChartBatchRenderer charts={node.items.map((child) => tabContent[child.id].content)} />
+            <Suspense fallback={<ContainerSkeleton />}>
+              <LazyChartBatchRenderer charts={node.items.map((child) => tabContent[child.id].content)} />
+            </Suspense>
             <p>Контент для {node.title}.</p>
-            {childrenContent}
+            {/*childrenContent*/}
           </div>
         );
 
@@ -53,7 +80,7 @@ const tabContent = (data) => {
         const content = (
           <div key={node.id}>
             <h3>{node.title}</h3> {/* Используем title узла */}
-            <Suspense fallback={<div>Загрузка графика...</div>}>
+            <Suspense fallback={<ChartSkeleton />}>
               <PrometheusChart metricName={metricName} />
             </Suspense>
           </div>
diff --git a/src/Components/UI/LoginModal.jsx b/src/Components/UI/LoginModal.jsx
index 3e29de2..d38d7b7 100755
--- a/src/Components/UI/LoginModal.jsx
+++ b/src/Components/UI/LoginModal.jsx
@@ -3,6 +3,7 @@ import Modal from "./Modal";
 import "../../Style/LoginModal.css";
 import Logo from '../../assets/images/logo.svg?react';
 import TextField from '@mui/material/TextField';
+import axios from 'axios';
 
 const LoginModal = ({ onLogin, onClose }) => {
   const [username, setUsername] = useState("");
@@ -16,9 +17,10 @@ const LoginModal = ({ onLogin, onClose }) => {
     e.preventDefault();
 
     try {
-      // Отправляем данные на бэкенд
-      const response = await fetch(`${import.meta.env.VITE_BACK_URL}/api/auth/login`, {
+      const response = await axios.post(
+        `${import.meta.env.VITE_BACK_URL}/api/auth/login`, {
         method: 'POST',
+        credentials: 'include',
         headers: {
           'Content-Type': 'application/json',
         },
@@ -28,8 +30,9 @@ const LoginModal = ({ onLogin, onClose }) => {
       const data = await response.json();
 
       if (data.success) {
-        onLogin(); // Успешная авторизация
-        onClose(); // Закрыть модальное окно
+        localStorage.setItem('access_token', data.access_token);
+        onLogin(data.user); // Передаем данные пользователя
+        onClose();
       } else {
         setError(data.message || "Неверный логин или пароль");
       }
diff --git a/src/Components/UI/auth.jsx b/src/Components/UI/auth.jsx
new file mode 100644
index 0000000..7532538
--- /dev/null
+++ b/src/Components/UI/auth.jsx
@@ -0,0 +1,25 @@
+import axios from 'axios';
+
+export const checkAuth = async () => {
+  try {
+    const response = await axios.get(
+      `${import.meta.env.VITE_BACK_URL}/api/auth/check`,
+      {
+        withCredentials: true, // аналог `credentials: 'include'` в fetch
+        headers: {
+          Authorization: `Bearer ${localStorage.getItem('access_token') || ''}`,
+        },
+      }
+    );
+
+    // У axios нет свойства .ok, проверяем статус 200-299
+    if (response.status >= 200 && response.status < 300) {
+      return response.data; // Данные уже в JSON, не нужно .json()
+    } else {
+      throw new Error('Not authenticated');
+    }
+  } catch (err) {
+    console.error('Auth check failed:', err);
+    return { isAuthenticated: false };
+  }
+};
\ No newline at end of file
diff --git a/src/Style/theme.jsx b/src/Style/theme.jsx
index 40c405d..017bc36 100644
--- a/src/Style/theme.jsx
+++ b/src/Style/theme.jsx
@@ -76,7 +76,7 @@ export const lightTheme = createTheme({
 
         // Фоновые цвета
         background: {
-            default: "#6CACE4", // Основной фон приложения
+            default: "#FFFFFF", // Основной фон приложения
             paper: "#FFFFFF",   // Фон "бумажных" поверхностей (карточек, панелей)
         },