diff --git a/lib/core/api_client.dart b/lib/core/api_client.dart
new file mode 100644
index 0000000..859abfd
--- /dev/null
+++ b/lib/core/api_client.dart
@@ -0,0 +1,87 @@
+import 'dart:convert';
+
+import 'package:http/http.dart' as http;
+
+import 'api_config.dart';
+
+/// Thrown for any non-2xx response. `errors` is populated for Laravel's
+/// standard 422 validation shape (`{"message": ..., "errors": {field: [...]}}`).
+class ApiException implements Exception {
+  ApiException(this.statusCode, this.message, {this.errors});
+
+  final int statusCode;
+  final String message;
+  final Map<String, List<String>>? errors;
+
+  bool get isUnauthorized => statusCode == 401;
+
+  @override
+  String toString() => message;
+}
+
+/// Thin wrapper over `package:http` for the `/api/v1` backend: builds the
+/// URL, attaches the bearer token (set by AuthService after login), decodes
+/// JSON, and turns non-2xx responses into [ApiException].
+class ApiClient {
+  String? _token;
+
+  void setToken(String? token) => _token = token;
+
+  Uri _uri(String path) => Uri.parse('${ApiConfig.apiV1Url}$path');
+
+  Map<String, String> get _headers => {
+        'Accept': 'application/json',
+        'Content-Type': 'application/json',
+        if (_token != null) 'Authorization': 'Bearer $_token',
+      };
+
+  Future<dynamic> get(String path) async {
+    return _handle(await http.get(_uri(path), headers: _headers));
+  }
+
+  Future<dynamic> post(String path, [Map<String, dynamic>? body]) async {
+    return _handle(await http.post(
+      _uri(path),
+      headers: _headers,
+      body: body == null ? null : jsonEncode(body),
+    ));
+  }
+
+  Future<dynamic> put(String path, [Map<String, dynamic>? body]) async {
+    return _handle(await http.put(
+      _uri(path),
+      headers: _headers,
+      body: body == null ? null : jsonEncode(body),
+    ));
+  }
+
+  Future<dynamic> delete(String path) async {
+    return _handle(await http.delete(_uri(path), headers: _headers));
+  }
+
+  dynamic _handle(http.Response response) {
+    final ok = response.statusCode >= 200 && response.statusCode < 300;
+
+    if (response.body.isEmpty) {
+      if (ok) return null;
+      throw ApiException(response.statusCode, 'Ошибка запроса (${response.statusCode})');
+    }
+
+    final decoded = jsonDecode(utf8.decode(response.bodyBytes));
+
+    if (ok) return decoded;
+
+    final message = decoded is Map && decoded['message'] is String
+        ? decoded['message'] as String
+        : 'Ошибка запроса (${response.statusCode})';
+
+    Map<String, List<String>>? errors;
+    if (decoded is Map && decoded['errors'] is Map) {
+      errors = (decoded['errors'] as Map).map(
+        (key, value) => MapEntry(key as String, List<String>.from(value as List)),
+      );
+    }
+
+    throw ApiException(response.statusCode, message, errors: errors);
+  }
+}
diff --git a/lib/core/api_config.dart b/lib/core/api_config.dart
new file mode 100644
index 0000000..6890897
--- /dev/null
+++ b/lib/core/api_config.dart
@@ -0,0 +1,21 @@
+import 'dart:io' show Platform;
+
+/// Backend base URL, without a trailing slash and without `/api/v1`.
+///
+/// Override at build/run time, e.g.:
+///   flutter run --dart-define=API_BASE_URL=http://192.168.1.10:8000
+///
+/// Without an override we guess a sane per-platform default for local dev:
+/// the Android emulator can't reach the host via `localhost` (it has its own
+/// loopback), so it needs the special `10.0.2.2` alias instead.
+class ApiConfig {
+  static const _override = String.fromEnvironment('API_BASE_URL');
+
+  static String get baseUrl {
+    if (_override.isNotEmpty) return _override;
+    if (!Platform.isAndroid) return 'http://localhost:8000';
+    return 'http://10.0.2.2:8000';
+  }
+
+  static String get apiV1Url => '$baseUrl/api/v1';
+}
diff --git a/lib/core/api_service.dart b/lib/core/api_service.dart
new file mode 100644
index 0000000..2664ce3
--- /dev/null
+++ b/lib/core/api_service.dart
@@ -0,0 +1,129 @@
+import '../models/automation_rule.dart';
+import '../models/device.dart';
+import '../models/device_type.dart';
+import '../models/zone.dart';
+import 'api_client.dart';
+
+/// Typed wrappers for every `/api/v1` endpoint besides auth (see
+/// [AuthService] for login/logout/me). One method per backend action —
+/// no generic "request" escape hatch, so call sites stay self-documenting.
+class ApiService {
+  ApiService(this._client);
+
+  final ApiClient _client;
+
+  // --- Zones ---
+
+  Future<List<Zone>> zones() async {
+    final json = await _client.get('/zones');
+    return _list(json).map(Zone.fromJson).toList();
+  }
+
+  Future<Zone> createZone({required String name, String? description}) async {
+    final json = await _client.post('/zones', {
+      'name': name,
+      if (description != null && description.isNotEmpty) 'description': description,
+    });
+    return Zone.fromJson(json['data'] as Map<String, dynamic>);
+  }
+
+  Future<Zone> updateZone(int id, {required String name, String? description}) async {
+    final json = await _client.put('/zones/$id', {
+      'name': name,
+      if (description != null && description.isNotEmpty) 'description': description,
+    });
+    return Zone.fromJson(json['data'] as Map<String, dynamic>);
+  }
+
+  Future<void> deleteZone(int id) => _client.delete('/zones/$id');
+
+  // --- Device types ---
+
+  Future<List<DeviceType>> deviceTypes() async {
+    final json = await _client.get('/device-types');
+    return _list(json).map(DeviceType.fromJson).toList();
+  }
+
+  // --- Devices ---
+
+  Future<List<Device>> devices() async {
+    final json = await _client.get('/devices');
+    return _list(json).map(Device.fromJson).toList();
+  }
+
+  Future<DeviceDetail> device(int id) async {
+    final json = await _client.get('/devices/$id');
+    return DeviceDetail.fromJson(json as Map<String, dynamic>);
+  }
+
+  Future<Device> createDevice({
+    required int zoneId,
+    required int deviceTypeId,
+    required String name,
+    required String externalId,
+    String protocol = 'mqtt',
+  }) async {
+    final json = await _client.post('/devices', {
+      'zone_id': zoneId,
+      'device_type_id': deviceTypeId,
+      'name': name,
+      'external_id': externalId,
+      'protocol': protocol,
+    });
+    return Device.fromJson(json['data'] as Map<String, dynamic>);
+  }
+
+  Future<Device> updateDevice(
+    int id, {
+    required int zoneId,
+    required int deviceTypeId,
+    required String name,
+    required String externalId,
+    String protocol = 'mqtt',
+  }) async {
+    final json = await _client.put('/devices/$id', {
+      'zone_id': zoneId,
+      'device_type_id': deviceTypeId,
+      'name': name,
+      'external_id': externalId,
+      'protocol': protocol,
+    });
+    return Device.fromJson(json['data'] as Map<String, dynamic>);
+  }
+
+  Future<void> deleteDevice(int id) => _client.delete('/devices/$id');
+
+  Future<String> turnOn(int deviceId) => _commandMessage(_client.post('/devices/$deviceId/turn-on'));
+
+  Future<String> turnOff(int deviceId) => _commandMessage(_client.post('/devices/$deviceId/turn-off'));
+
+  Future<String> setLevel(int deviceId, double level) =>
+      _commandMessage(_client.post('/devices/$deviceId/set-level', {'level': level}));
+
+  Future<String> _commandMessage(Future<dynamic> request) async {
+    final json = await request;
+    return (json as Map<String, dynamic>)['message'] as String? ?? 'Готово.';
+  }
+
+  // --- Automation rules ---
+
+  Future<List<AutomationRule>> automationRules() async {
+    final json = await _client.get('/automation-rules');
+    return _list(json).map(AutomationRule.fromJson).toList();
+  }
+
+  Future<AutomationRule> createAutomationRule(Map<String, dynamic> payload) async {
+    final json = await _client.post('/automation-rules', payload);
+    return AutomationRule.fromJson(json['data'] as Map<String, dynamic>);
+  }
+
+  Future<AutomationRule> updateAutomationRule(int id, Map<String, dynamic> payload) async {
+    final json = await _client.put('/automation-rules/$id', payload);
+    return AutomationRule.fromJson(json['data'] as Map<String, dynamic>);
+  }
+
+  Future<void> deleteAutomationRule(int id) => _client.delete('/automation-rules/$id');
+
+  List<Map<String, dynamic>> _list(dynamic json) =>
+      List<Map<String, dynamic>>.from((json as Map<String, dynamic>)['data'] as List);
+}
diff --git a/lib/core/auth_service.dart b/lib/core/auth_service.dart
new file mode 100644
index 0000000..2b757cf
--- /dev/null
+++ b/lib/core/auth_service.dart
@@ -0,0 +1,83 @@
+import 'dart:io' show Platform;
+
+import 'package:flutter/foundation.dart';
+import 'package:flutter_secure_storage/flutter_secure_storage.dart';
+
+import '../models/user.dart';
+import 'api_client.dart';
+
+/// Session state + token persistence. The token is a Sanctum personal
+/// access token, named per-device on the backend (see `/login`'s
+/// `device_name`) so a user could later revoke one device without others.
+class AuthService extends ChangeNotifier {
+  AuthService(this._apiClient);
+
+  final ApiClient _apiClient;
+  final _storage = const FlutterSecureStorage();
+  static const _tokenKey = 'auth_token';
+
+  User? _user;
+  bool _isLoading = true; // true until restoreSession() resolves once at startup
+
+  User? get user => _user;
+  bool get isLoading => _isLoading;
+  bool get isAuthenticated => _user != null;
+
+  /// Call once at app startup: restores a saved token and validates it
+  /// against `/me` — a saved token can be stale if it was revoked
+  /// server-side (e.g. logged out from another device's session list).
+  Future<void> restoreSession() async {
+    final token = await _storage.read(key: _tokenKey);
+    if (token == null) {
+      _isLoading = false;
+      notifyListeners();
+      return;
+    }
+
+    _apiClient.setToken(token);
+    try {
+      final json = await _apiClient.get('/me');
+      _user = User.fromJson(json['data'] as Map<String, dynamic>);
+    } on ApiException {
+      await _storage.delete(key: _tokenKey);
+      _apiClient.setToken(null);
+    }
+
+    _isLoading = false;
+    notifyListeners();
+  }
+
+  Future<void> login(String email, String password) async {
+    final json = await _apiClient.post('/login', {
+      'email': email,
+      'password': password,
+      'device_name': _deviceName(),
+    });
+
+    final token = json['token'] as String;
+    await _storage.write(key: _tokenKey, value: token);
+    _apiClient.setToken(token);
+    _user = User.fromJson(json['user'] as Map<String, dynamic>);
+    notifyListeners();
+  }
+
+  Future<void> logout() async {
+    try {
+      await _apiClient.post('/logout');
+    } on ApiException {
+      // Token may already be invalid server-side (expired/revoked) —
+      // still clear local state so the user isn't stuck logged in.
+    }
+    await _storage.delete(key: _tokenKey);
+    _apiClient.setToken(null);
+    _user = null;
+    notifyListeners();
+  }
+
+  String _deviceName() {
+    if (kIsWeb) return 'web';
+    if (Platform.isIOS) return 'iOS device';
+    if (Platform.isAndroid) return 'Android device';
+    return Platform.operatingSystem;
+  }
+}
diff --git a/lib/main.dart b/lib/main.dart
index 244a702..4fc2b89 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -1,122 +1,53 @@
 import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+
+import 'core/api_client.dart';
+import 'core/api_service.dart';
+import 'core/auth_service.dart';
+import 'screens/home_screen.dart';
+import 'screens/login_screen.dart';
 
 void main() {
-  runApp(const MyApp());
+  runApp(const App());
 }
 
-class MyApp extends StatelessWidget {
-  const MyApp({super.key});
-
-  // This widget is the root of your application.
-  @override
-  Widget build(BuildContext context) {
-    return MaterialApp(
-      title: 'Flutter Demo',
-      theme: ThemeData(
-        // This is the theme of your application.
-        //
-        // TRY THIS: Try running your application with "flutter run". You'll see
-        // the application has a purple toolbar. Then, without quitting the app,
-        // try changing the seedColor in the colorScheme below to Colors.green
-        // and then invoke "hot reload" (save your changes or press the "hot
-        // reload" button in a Flutter-supported IDE, or press "r" if you used
-        // the command line to start the app).
-        //
-        // Notice that the counter didn't reset back to zero; the application
-        // state is not lost during the reload. To reset the state, use hot
-        // restart instead.
-        //
-        // This works for code too, not just values: Most code changes can be
-        // tested with just a hot reload.
-        colorScheme: .fromSeed(seedColor: Colors.deepPurple),
-      ),
-      home: const MyHomePage(title: 'Flutter Demo Home Page'),
-    );
-  }
-}
-
-class MyHomePage extends StatefulWidget {
-  const MyHomePage({super.key, required this.title});
-
-  // This widget is the home page of your application. It is stateful, meaning
-  // that it has a State object (defined below) that contains fields that affect
-  // how it looks.
-
-  // This class is the configuration for the state. It holds the values (in this
-  // case the title) provided by the parent (in this case the App widget) and
-  // used by the build method of the State. Fields in a Widget subclass are
-  // always marked "final".
-
-  final String title;
-
-  @override
-  State<MyHomePage> createState() => _MyHomePageState();
-}
-
-class _MyHomePageState extends State<MyHomePage> {
-  int _counter = 0;
-
-  void _incrementCounter() {
-    setState(() {
-      // This call to setState tells the Flutter framework that something has
-      // changed in this State, which causes it to rerun the build method below
-      // so that the display can reflect the updated values. If we changed
-      // _counter without calling setState(), then the build method would not be
-      // called again, and so nothing would appear to happen.
-      _counter++;
-    });
-  }
+class App extends StatelessWidget {
+  const App({super.key});
 
   @override
   Widget build(BuildContext context) {
-    // This method is rerun every time setState is called, for instance as done
-    // by the _incrementCounter method above.
-    //
-    // The Flutter framework has been optimized to make rerunning build methods
-    // fast, so that you can just rebuild anything that needs updating rather
-    // than having to individually change instances of widgets.
-    return Scaffold(
-      appBar: AppBar(
-        // TRY THIS: Try changing the color here to a specific color (to
-        // Colors.amber, perhaps?) and trigger a hot reload to see the AppBar
-        // change color while the other colors stay the same.
-        backgroundColor: Theme.of(context).colorScheme.inversePrimary,
-        // Here we take the value from the MyHomePage object that was created by
-        // the App.build method, and use it to set our appbar title.
-        title: Text(widget.title),
-      ),
-      body: Center(
-        // Center is a layout widget. It takes a single child and positions it
-        // in the middle of the parent.
-        child: Column(
-          // Column is also a layout widget. It takes a list of children and
-          // arranges them vertically. By default, it sizes itself to fit its
-          // children horizontally, and tries to be as tall as its parent.
-          //
-          // Column has various properties to control how it sizes itself and
-          // how it positions its children. Here we use mainAxisAlignment to
-          // center the children vertically; the main axis here is the vertical
-          // axis because Columns are vertical (the cross axis would be
-          // horizontal).
-          //
-          // TRY THIS: Invoke "debug painting" (choose the "Toggle Debug Paint"
-          // action in the IDE, or press "p" in the console), to see the
-          // wireframe for each widget.
-          mainAxisAlignment: .center,
-          children: [
-            const Text('You have pushed the button this many times:'),
-            Text(
-              '$_counter',
-              style: Theme.of(context).textTheme.headlineMedium,
-            ),
-          ],
+    final apiClient = ApiClient();
+
+    return MultiProvider(
+      providers: [
+        Provider<ApiClient>.value(value: apiClient),
+        Provider<ApiService>(create: (_) => ApiService(apiClient)),
+        ChangeNotifierProvider<AuthService>(
+          create: (_) => AuthService(apiClient)..restoreSession(),
         ),
-      ),
-      floatingActionButton: FloatingActionButton(
-        onPressed: _incrementCounter,
-        tooltip: 'Increment',
-        child: const Icon(Icons.add),
+      ],
+      child: MaterialApp(
+        title: 'Домашняя автоматизация',
+        theme: ThemeData(colorScheme: ColorScheme.fromSeed(seedColor: Colors.teal)),
+        home: const AuthGate(),
       ),
     );
   }
 }
+
+/// Swaps between login and the app shell based on session state, so nothing
+/// else in the tree needs to know how auth is restored or persisted.
+class AuthGate extends StatelessWidget {
+  const AuthGate({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    final auth = context.watch<AuthService>();
+
+    if (auth.isLoading) {
+      return const Scaffold(body: Center(child: CircularProgressIndicator()));
+    }
+
+    return auth.isAuthenticated ? const HomeScreen() : const LoginScreen();
+  }
+}
diff --git a/lib/models/automation_rule.dart b/lib/models/automation_rule.dart
new file mode 100644
index 0000000..0787df0
--- /dev/null
+++ b/lib/models/automation_rule.dart
@@ -0,0 +1,47 @@
+import 'device.dart';
+import 'zone.dart';
+
+class AutomationRule {
+  AutomationRule({
+    required this.id,
+    required this.conditionSensorType,
+    required this.conditionOperator,
+    required this.conditionValue,
+    required this.actionType,
+    required this.actionParams,
+    required this.isActive,
+    this.zone,
+    this.targetDevice,
+    this.conditionSourceDevice,
+  });
+
+  final int id;
+  final Zone? zone;
+  final Device? targetDevice;
+  final Device? conditionSourceDevice;
+  final String conditionSensorType;
+  final String conditionOperator; // ">", "<", ">=", "<=", "=="
+  final double conditionValue;
+  final String actionType; // "turn_on", "turn_off", "set_level", ...
+  final Map<String, dynamic> actionParams;
+  final bool isActive;
+
+  /// `action_params.level` for `set_level` rules, if present.
+  num? get level => actionParams['level'] as num?;
+
+  factory AutomationRule.fromJson(Map<String, dynamic> json) => AutomationRule(
+        id: json['id'] as int,
+        zone: json['zone'] is Map ? Zone.fromJson(json['zone'] as Map<String, dynamic>) : null,
+        targetDevice:
+            json['target_device'] is Map ? Device.fromJson(json['target_device'] as Map<String, dynamic>) : null,
+        conditionSourceDevice: json['condition_source_device'] is Map
+            ? Device.fromJson(json['condition_source_device'] as Map<String, dynamic>)
+            : null,
+        conditionSensorType: json['condition_sensor_type'] as String,
+        conditionOperator: json['condition_operator'] as String,
+        conditionValue: (json['condition_value'] as num).toDouble(),
+        actionType: json['action_type'] as String,
+        actionParams: Map<String, dynamic>.from(json['action_params'] as Map? ?? const {}),
+        isActive: json['is_active'] as bool? ?? false,
+      );
+}
diff --git a/lib/models/device.dart b/lib/models/device.dart
new file mode 100644
index 0000000..709b865
--- /dev/null
+++ b/lib/models/device.dart
@@ -0,0 +1,80 @@
+import 'device_type.dart';
+import 'zone.dart';
+
+class Device {
+  Device({
+    required this.id,
+    required this.name,
+    required this.externalId,
+    required this.protocol,
+    required this.status,
+    this.zone,
+    this.deviceType,
+  });
+
+  final int id;
+  final String name;
+  final String externalId;
+  final String protocol;
+  final String status; // "online" | "offline" | "unknown"
+  final Zone? zone;
+  final DeviceType? deviceType;
+
+  factory Device.fromJson(Map<String, dynamic> json) => Device(
+        id: json['id'] as int,
+        name: json['name'] as String,
+        externalId: json['external_id'] as String,
+        protocol: json['protocol'] as String,
+        status: json['status'] as String? ?? 'unknown',
+        zone: json['zone'] is Map ? Zone.fromJson(json['zone'] as Map<String, dynamic>) : null,
+        deviceType: json['device_type'] is Map
+            ? DeviceType.fromJson(json['device_type'] as Map<String, dynamic>)
+            : null,
+      );
+}
+
+/// The extra data returned only by `GET /devices/{id}`: Device Shadow
+/// snapshot (Redis) plus recent telemetry readings (ClickHouse, sensors only).
+class DeviceDetail {
+  DeviceDetail({
+    required this.device,
+    required this.lastSeen,
+    required this.desiredState,
+    required this.reportedState,
+    required this.telemetry,
+  });
+
+  final Device device;
+  final DateTime? lastSeen;
+  final Map<String, dynamic> desiredState;
+  final Map<String, dynamic> reportedState;
+  final List<TelemetryReading> telemetry;
+
+  factory DeviceDetail.fromJson(Map<String, dynamic> json) {
+    final shadow = json['shadow'] as Map<String, dynamic>;
+
+    return DeviceDetail(
+      device: Device.fromJson(json['data'] as Map<String, dynamic>),
+      lastSeen: shadow['last_seen'] != null ? DateTime.tryParse(shadow['last_seen'] as String) : null,
+      desiredState: Map<String, dynamic>.from(shadow['desired_state'] as Map? ?? const {}),
+      reportedState: Map<String, dynamic>.from(shadow['reported_state'] as Map? ?? const {}),
+      telemetry: (json['telemetry'] as List? ?? const [])
+          .map((e) => TelemetryReading.fromJson(e as Map<String, dynamic>))
+          .toList(),
+    );
+  }
+}
+
+class TelemetryReading {
+  TelemetryReading({required this.sensorType, required this.value, required this.recordedAt});
+
+  final String sensorType;
+  final double value;
+  final String recordedAt;
+
+  factory TelemetryReading.fromJson(Map<String, dynamic> json) => TelemetryReading(
+        sensorType: json['sensor_type'] as String,
+        value: (json['value'] as num).toDouble(),
+        recordedAt: json['recorded_at'] as String,
+      );
+}
diff --git a/lib/models/device_type.dart b/lib/models/device_type.dart
new file mode 100644
index 0000000..13caee1
--- /dev/null
+++ b/lib/models/device_type.dart
@@ -0,0 +1,25 @@
+class DeviceType {
+  DeviceType({
+    required this.id,
+    required this.code,
+    required this.category,
+    required this.capabilities,
+  });
+
+  final int id;
+  final String code;
+  final String category; // "actuator" | "sensor"
+  final List<String> capabilities;
+
+  bool get isSensor => category == 'sensor';
+  bool get isActuator => category == 'actuator';
+
+  bool supports(String capability) => capabilities.contains(capability);
+
+  factory DeviceType.fromJson(Map<String, dynamic> json) => DeviceType(
+        id: json['id'] as int,
+        code: json['code'] as String,
+        category: json['category'] as String,
+        capabilities: List<String>.from(json['capabilities'] as List? ?? const []),
+      );
+}
diff --git a/lib/models/user.dart b/lib/models/user.dart
new file mode 100644
index 0000000..61b2f49
--- /dev/null
+++ b/lib/models/user.dart
@@ -0,0 +1,17 @@
+class User {
+  User({required this.id, required this.name, required this.email, required this.role});
+
+  final int id;
+  final String name;
+  final String email;
+  final String role; // "owner" | "viewer"
+
+  bool get isOwner => role == 'owner';
+
+  factory User.fromJson(Map<String, dynamic> json) => User(
+        id: json['id'] as int,
+        name: json['name'] as String,
+        email: json['email'] as String,
+        role: json['role'] as String,
+      );
+}
diff --git a/lib/models/zone.dart b/lib/models/zone.dart
new file mode 100644
index 0000000..5c24b35
--- /dev/null
+++ b/lib/models/zone.dart
@@ -0,0 +1,15 @@
+class Zone {
+  Zone({required this.id, required this.name, this.description, this.devicesCount});
+
+  final int id;
+  final String name;
+  final String? description;
+  final int? devicesCount;
+
+  factory Zone.fromJson(Map<String, dynamic> json) => Zone(
+        id: json['id'] as int,
+        name: json['name'] as String,
+        description: json['description'] as String?,
+        devicesCount: json['devices_count'] as int?,
+      );
+}
diff --git a/lib/screens/automation_rules_tab.dart b/lib/screens/automation_rules_tab.dart
new file mode 100644
index 0000000..5ffbf9f
--- /dev/null
+++ b/lib/screens/automation_rules_tab.dart
@@ -0,0 +1,90 @@
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+
+import '../core/api_service.dart';
+import '../models/automation_rule.dart';
+
+class AutomationRulesTab extends StatefulWidget {
+  const AutomationRulesTab({super.key});
+
+  @override
+  State<AutomationRulesTab> createState() => _AutomationRulesTabState();
+}
+
+class _AutomationRulesTabState extends State<AutomationRulesTab> {
+  late Future<List<AutomationRule>> _future;
+
+  @override
+  void initState() {
+    super.initState();
+    _future = _load();
+  }
+
+  Future<List<AutomationRule>> _load() => context.read<ApiService>().automationRules();
+
+  Future<void> _refresh() async {
+    final future = _load();
+    setState(() => _future = future);
+    await future;
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return RefreshIndicator(
+      onRefresh: _refresh,
+      child: FutureBuilder<List<AutomationRule>>(
+        future: _future,
+        builder: (context, snapshot) {
+          if (snapshot.connectionState != ConnectionState.done) {
+            return const Center(child: CircularProgressIndicator());
+          }
+          if (snapshot.hasError) {
+            return ListView(
+              physics: const AlwaysScrollableScrollPhysics(),
+              children: [
+                Padding(
+                  padding: const EdgeInsets.all(24),
+                  child: Text('${snapshot.error}', textAlign: TextAlign.center),
+                ),
+              ],
+            );
+          }
+
+          final rules = snapshot.data!;
+          if (rules.isEmpty) {
+            return ListView(
+              physics: const AlwaysScrollableScrollPhysics(),
+              children: const [
+                Padding(
+                  padding: EdgeInsets.all(24),
+                  child: Text('Правил пока нет.', textAlign: TextAlign.center),
+                ),
+              ],
+            );
+          }
+
+          return ListView.separated(
+            physics: const AlwaysScrollableScrollPhysics(),
+            itemCount: rules.length,
+            separatorBuilder: (context, index) => const Divider(height: 1),
+            itemBuilder: (context, index) {
+              final rule = rules[index];
+              final condition =
+                  '${rule.conditionSourceDevice?.name ?? '?'}: ${rule.conditionSensorType} ${rule.conditionOperator} ${rule.conditionValue}';
+              final action = rule.level != null
+                  ? '${rule.actionType} (${rule.level}) → ${rule.targetDevice?.name ?? '?'}'
+                  : '${rule.actionType} → ${rule.targetDevice?.name ?? '?'}';
+
+              return ListTile(
+                leading: Icon(rule.isActive ? Icons.bolt : Icons.bolt_outlined),
+                title: Text('ЕСЛИ $condition'),
+                subtitle: Text('ТО $action'),
+                isThreeLine: true,
+              );
+            },
+          );
+        },
+      ),
+    );
+  }
+}
diff --git a/lib/screens/device_detail_screen.dart b/lib/screens/device_detail_screen.dart
new file mode 100644
index 0000000..ed42aab
--- /dev/null
+++ b/lib/screens/device_detail_screen.dart
@@ -0,0 +1,211 @@
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+
+import '../core/api_client.dart';
+import '../core/api_service.dart';
+import '../models/device.dart';
+import '../widgets/status_badge.dart';
+
+class DeviceDetailScreen extends StatefulWidget {
+  const DeviceDetailScreen({super.key, required this.deviceId});
+
+  final int deviceId;
+
+  @override
+  State<DeviceDetailScreen> createState() => _DeviceDetailScreenState();
+}
+
+class _DeviceDetailScreenState extends State<DeviceDetailScreen> {
+  late Future<DeviceDetail> _future;
+  bool _isSendingCommand = false;
+
+  @override
+  void initState() {
+    super.initState();
+    _future = _load();
+  }
+
+  Future<DeviceDetail> _load() => context.read<ApiService>().device(widget.deviceId);
+
+  Future<void> _refresh() async {
+    final future = _load();
+    setState(() => _future = future);
+    await future;
+  }
+
+  Future<void> _runCommand(Future<String> Function() command) async {
+    setState(() => _isSendingCommand = true);
+    try {
+      final message = await command();
+      if (!mounted) return;
+      ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text(message)));
+      await _refresh();
+    } on ApiException catch (e) {
+      if (!mounted) return;
+      ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text(e.message)));
+    } finally {
+      if (mounted) setState(() => _isSendingCommand = false);
+    }
+  }
+
+  Future<void> _promptSetLevel(int deviceId) async {
+    final apiService = context.read<ApiService>();
+    double level = 50;
+
+    final confirmed = await showDialog<bool>(
+      context: context,
+      builder: (context) => StatefulBuilder(
+        builder: (context, setDialogState) => AlertDialog(
+          title: const Text('Установить уровень'),
+          content: Column(
+            mainAxisSize: MainAxisSize.min,
+            children: [
+              Text('${level.round()}'),
+              Slider(
+                value: level,
+                min: 0,
+                max: 100,
+                divisions: 100,
+                onChanged: (value) => setDialogState(() => level = value),
+              ),
+            ],
+          ),
+          actions: [
+            TextButton(onPressed: () => Navigator.pop(context, false), child: const Text('Отмена')),
+            FilledButton(onPressed: () => Navigator.pop(context, true), child: const Text('Отправить')),
+          ],
+        ),
+      ),
+    );
+
+    if (confirmed == true) {
+      await _runCommand(() => apiService.setLevel(deviceId, level));
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final apiService = context.read<ApiService>();
+
+    return Scaffold(
+      appBar: AppBar(title: const Text('Устройство')),
+      body: RefreshIndicator(
+        onRefresh: _refresh,
+        child: FutureBuilder<DeviceDetail>(
+          future: _future,
+          builder: (context, snapshot) {
+            if (snapshot.connectionState != ConnectionState.done) {
+              return const Center(child: CircularProgressIndicator());
+            }
+            if (snapshot.hasError) {
+              return ListView(
+                physics: const AlwaysScrollableScrollPhysics(),
+                children: [
+                  Padding(
+                    padding: const EdgeInsets.all(24),
+                    child: Text('${snapshot.error}', textAlign: TextAlign.center),
+                  ),
+                ],
+              );
+            }
+
+            final detail = snapshot.data!;
+            final device = detail.device;
+            final capabilities = device.deviceType?.capabilities ?? const [];
+
+            return ListView(
+              physics: const AlwaysScrollableScrollPhysics(),
+              padding: const EdgeInsets.all(16),
+              children: [
+                Row(
+                  mainAxisAlignment: MainAxisAlignment.spaceBetween,
+                  children: [
+                    Expanded(
+                      child: Text(device.name, style: Theme.of(context).textTheme.headlineSmall),
+                    ),
+                    StatusBadge(status: device.status),
+                  ],
+                ),
+                const SizedBox(height: 4),
+                Text('${device.zone?.name ?? '—'} · ${device.deviceType?.code ?? device.protocol}'),
+                if (detail.lastSeen != null)
+                  Padding(
+                    padding: const EdgeInsets.only(top: 4),
+                    child: Text('Последний сигнал: ${detail.lastSeen}'),
+                  ),
+                const SizedBox(height: 24),
+                if (capabilities.contains('turn_on') || capabilities.contains('turn_off'))
+                  Row(
+                    children: [
+                      if (capabilities.contains('turn_on'))
+                        Expanded(
+                          child: FilledButton(
+                            onPressed: _isSendingCommand ? null : () => _runCommand(() => apiService.turnOn(device.id)),
+                            child: const Text('Включить'),
+                          ),
+                        ),
+                      if (capabilities.contains('turn_on') && capabilities.contains('turn_off'))
+                        const SizedBox(width: 12),
+                      if (capabilities.contains('turn_off'))
+                        Expanded(
+                          child: OutlinedButton(
+                            onPressed:
+                                _isSendingCommand ? null : () => _runCommand(() => apiService.turnOff(device.id)),
+                            child: const Text('Выключить'),
+                          ),
+                        ),
+                    ],
+                  ),
+                if (capabilities.contains('set_level')) ...[
+                  const SizedBox(height: 12),
+                  OutlinedButton(
+                    onPressed: _isSendingCommand ? null : () => _promptSetLevel(device.id),
+                    child: const Text('Установить уровень'),
+                  ),
+                ],
+                if (detail.reportedState.isNotEmpty) ...[
+                  const SizedBox(height: 24),
+                  Text('Сообщённое состояние', style: Theme.of(context).textTheme.titleMedium),
+                  const SizedBox(height: 8),
+                  _KeyValueTable(data: detail.reportedState),
+                ],
+                if (detail.telemetry.isNotEmpty) ...[
+                  const SizedBox(height: 24),
+                  Text('История показаний', style: Theme.of(context).textTheme.titleMedium),
+                  const SizedBox(height: 8),
+                  ...detail.telemetry.map(
+                    (reading) => ListTile(
+                      contentPadding: EdgeInsets.zero,
+                      title: Text('${reading.sensorType}: ${reading.value}'),
+                      subtitle: Text(reading.recordedAt),
+                      dense: true,
+                    ),
+                  ),
+                ],
+              ],
+            );
+          },
+        ),
+      ),
+    );
+  }
+}
+
+class _KeyValueTable extends StatelessWidget {
+  const _KeyValueTable({required this.data});
+
+  final Map<String, dynamic> data;
+
+  @override
+  Widget build(BuildContext context) {
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: data.entries
+          .map((entry) => Padding(
+                padding: const EdgeInsets.symmetric(vertical: 2),
+                child: Text('${entry.key}: ${entry.value}'),
+              ))
+          .toList(),
+    );
+  }
+}
diff --git a/lib/screens/devices_tab.dart b/lib/screens/devices_tab.dart
new file mode 100644
index 0000000..545ecb6
--- /dev/null
+++ b/lib/screens/devices_tab.dart
@@ -0,0 +1,98 @@
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+
+import '../core/api_service.dart';
+import '../models/device.dart';
+import '../widgets/status_badge.dart';
+import 'device_detail_screen.dart';
+
+class DevicesTab extends StatefulWidget {
+  const DevicesTab({super.key});
+
+  @override
+  State<DevicesTab> createState() => _DevicesTabState();
+}
+
+class _DevicesTabState extends State<DevicesTab> {
+  late Future<List<Device>> _future;
+
+  @override
+  void initState() {
+    super.initState();
+    _future = _load();
+  }
+
+  Future<List<Device>> _load() => context.read<ApiService>().devices();
+
+  Future<void> _refresh() async {
+    final future = _load();
+    setState(() => _future = future);
+    await future;
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return RefreshIndicator(
+      onRefresh: _refresh,
+      child: FutureBuilder<List<Device>>(
+        future: _future,
+        builder: (context, snapshot) {
+          if (snapshot.connectionState != ConnectionState.done) {
+            return const Center(child: CircularProgressIndicator());
+          }
+          if (snapshot.hasError) {
+            return _ErrorList(message: '${snapshot.error}', onRetry: _refresh);
+          }
+
+          final devices = snapshot.data!;
+          if (devices.isEmpty) {
+            return _ErrorList(message: 'Устройств пока нет.', onRetry: _refresh);
+          }
+
+          return ListView.separated(
+            physics: const AlwaysScrollableScrollPhysics(),
+            itemCount: devices.length,
+            separatorBuilder: (context, index) => const Divider(height: 1),
+            itemBuilder: (context, index) {
+              final device = devices[index];
+              return ListTile(
+                title: Text(device.name),
+                subtitle: Text('${device.zone?.name ?? '—'} · ${device.deviceType?.code ?? device.protocol}'),
+                trailing: StatusBadge(status: device.status),
+                onTap: () => Navigator.of(context).push(
+                  MaterialPageRoute(builder: (_) => DeviceDetailScreen(deviceId: device.id)),
+                ),
+              );
+            },
+          );
+        },
+      ),
+    );
+  }
+}
+
+class _ErrorList extends StatelessWidget {
+  const _ErrorList({required this.message, required this.onRetry});
+
+  final String message;
+  final Future<void> Function() onRetry;
+
+  @override
+  Widget build(BuildContext context) {
+    return ListView(
+      physics: const AlwaysScrollableScrollPhysics(),
+      children: [
+        Padding(
+          padding: const EdgeInsets.symmetric(vertical: 64, horizontal: 24),
+          child: Column(
+            children: [
+              Text(message, textAlign: TextAlign.center),
+              const SizedBox(height: 12),
+              TextButton(onPressed: onRetry, child: const Text('Повторить')),
+            ],
+          ),
+        ),
+      ],
+    );
+  }
+}
diff --git a/lib/screens/home_screen.dart b/lib/screens/home_screen.dart
new file mode 100644
index 0000000..c2d1b67
--- /dev/null
+++ b/lib/screens/home_screen.dart
@@ -0,0 +1,47 @@
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+
+import '../core/auth_service.dart';
+import 'automation_rules_tab.dart';
+import 'devices_tab.dart';
+import 'zones_tab.dart';
+
+class HomeScreen extends StatefulWidget {
+  const HomeScreen({super.key});
+
+  @override
+  State<HomeScreen> createState() => _HomeScreenState();
+}
+
+class _HomeScreenState extends State<HomeScreen> {
+  int _index = 0;
+
+  static const _titles = ['Устройства', 'Зоны', 'Правила'];
+  static const _tabs = [DevicesTab(), ZonesTab(), AutomationRulesTab()];
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: Text(_titles[_index]),
+        actions: [
+          IconButton(
+            icon: const Icon(Icons.logout),
+            tooltip: 'Выйти',
+            onPressed: () => context.read<AuthService>().logout(),
+          ),
+        ],
+      ),
+      body: IndexedStack(index: _index, children: _tabs),
+      bottomNavigationBar: NavigationBar(
+        selectedIndex: _index,
+        onDestinationSelected: (index) => setState(() => _index = index),
+        destinations: const [
+          NavigationDestination(icon: Icon(Icons.devices_other), label: 'Устройства'),
+          NavigationDestination(icon: Icon(Icons.room), label: 'Зоны'),
+          NavigationDestination(icon: Icon(Icons.rule), label: 'Правила'),
+        ],
+      ),
+    );
+  }
+}
diff --git a/lib/screens/login_screen.dart b/lib/screens/login_screen.dart
new file mode 100644
index 0000000..caac29c
--- /dev/null
+++ b/lib/screens/login_screen.dart
@@ -0,0 +1,108 @@
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+
+import '../core/api_client.dart';
+import '../core/auth_service.dart';
+
+class LoginScreen extends StatefulWidget {
+  const LoginScreen({super.key});
+
+  @override
+  State<LoginScreen> createState() => _LoginScreenState();
+}
+
+class _LoginScreenState extends State<LoginScreen> {
+  final _formKey = GlobalKey<FormState>();
+  final _emailController = TextEditingController();
+  final _passwordController = TextEditingController();
+
+  bool _isSubmitting = false;
+  String? _errorMessage;
+
+  @override
+  void dispose() {
+    _emailController.dispose();
+    _passwordController.dispose();
+    super.dispose();
+  }
+
+  Future<void> _submit() async {
+    if (!_formKey.currentState!.validate()) return;
+
+    setState(() {
+      _isSubmitting = true;
+      _errorMessage = null;
+    });
+
+    try {
+      await context.read<AuthService>().login(_emailController.text.trim(), _passwordController.text);
+    } on ApiException catch (e) {
+      setState(() => _errorMessage = e.message);
+    } finally {
+      if (mounted) setState(() => _isSubmitting = false);
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      body: SafeArea(
+        child: Center(
+          child: SingleChildScrollView(
+            padding: const EdgeInsets.all(24),
+            child: Form(
+              key: _formKey,
+              child: Column(
+                mainAxisSize: MainAxisSize.min,
+                crossAxisAlignment: CrossAxisAlignment.stretch,
+                children: [
+                  Text(
+                    'Домашняя автоматизация',
+                    style: Theme.of(context).textTheme.headlineSmall,
+                    textAlign: TextAlign.center,
+                  ),
+                  const SizedBox(height: 32),
+                  TextFormField(
+                    controller: _emailController,
+                    keyboardType: TextInputType.emailAddress,
+                    autofillHints: const [AutofillHints.email],
+                    decoration: const InputDecoration(labelText: 'Email'),
+                    validator: (value) => (value == null || value.isEmpty) ? 'Введите email' : null,
+                  ),
+                  const SizedBox(height: 16),
+                  TextFormField(
+                    controller: _passwordController,
+                    obscureText: true,
+                    autofillHints: const [AutofillHints.password],
+                    decoration: const InputDecoration(labelText: 'Пароль'),
+                    validator: (value) => (value == null || value.isEmpty) ? 'Введите пароль' : null,
+                    onFieldSubmitted: (_) => _submit(),
+                  ),
+                  if (_errorMessage != null) ...[
+                    const SizedBox(height: 16),
+                    Text(
+                      _errorMessage!,
+                      style: TextStyle(color: Theme.of(context).colorScheme.error),
+                      textAlign: TextAlign.center,
+                    ),
+                  ],
+                  const SizedBox(height: 24),
+                  FilledButton(
+                    onPressed: _isSubmitting ? null : _submit,
+                    child: _isSubmitting
+                        ? const SizedBox(
+                            height: 20,
+                            width: 20,
+                            child: CircularProgressIndicator(strokeWidth: 2),
+                          )
+                        : const Text('Войти'),
+                  ),
+                ],
+              ),
+            ),
+          ),
+        ),
+      ),
+    );
+  }
+}
diff --git a/lib/screens/zones_tab.dart b/lib/screens/zones_tab.dart
new file mode 100644
index 0000000..75f803b
--- /dev/null
+++ b/lib/screens/zones_tab.dart
@@ -0,0 +1,71 @@
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+
+import '../core/api_service.dart';
+import '../models/zone.dart';
+
+class ZonesTab extends StatefulWidget {
+  const ZonesTab({super.key});
+
+  @override
+  State<ZonesTab> createState() => _ZonesTabState();
+}
+
+class _ZonesTabState extends State<ZonesTab> {
+  late Future<List<Zone>> _future;
+
+  @override
+  void initState() {
+    super.initState();
+    _future = _load();
+  }
+
+  Future<List<Zone>> _load() => context.read<ApiService>().zones();
+
+  Future<void> _refresh() async {
+    final future = _load();
+    setState(() => _future = future);
+    await future;
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return RefreshIndicator(
+      onRefresh: _refresh,
+      child: FutureBuilder<List<Zone>>(
+        future: _future,
+        builder: (context, snapshot) {
+          if (snapshot.connectionState != ConnectionState.done) {
+            return const Center(child: CircularProgressIndicator());
+          }
+          if (snapshot.hasError) {
+            return ListView(
+              physics: const AlwaysScrollableScrollPhysics(),
+              children: [
+                Padding(
+                  padding: const EdgeInsets.all(24),
+                  child: Text('${snapshot.error}', textAlign: TextAlign.center),
+                ),
+              ],
+            );
+          }
+
+          final zones = snapshot.data!;
+          return ListView.separated(
+            physics: const AlwaysScrollableScrollPhysics(),
+            itemCount: zones.length,
+            separatorBuilder: (context, index) => const Divider(height: 1),
+            itemBuilder: (context, index) {
+              final zone = zones[index];
+              return ListTile(
+                title: Text(zone.name),
+                subtitle: zone.description != null ? Text(zone.description!) : null,
+                trailing: Text('${zone.devicesCount ?? 0} устр.'),
+              );
+            },
+          );
+        },
+      ),
+    );
+  }
+}
diff --git a/lib/widgets/status_badge.dart b/lib/widgets/status_badge.dart
new file mode 100644
index 0000000..9cc7797
--- /dev/null
+++ b/lib/widgets/status_badge.dart
@@ -0,0 +1,31 @@
+import 'package:flutter/material.dart';
+
+/// Small colored dot + label for a device's live status ("online" /
+/// "offline" / "unknown"), used anywhere a device is listed.
+class StatusBadge extends StatelessWidget {
+  const StatusBadge({super.key, required this.status});
+
+  final String status;
+
+  @override
+  Widget build(BuildContext context) {
+    final (color, label) = switch (status) {
+      'online' => (Colors.green, 'онлайн'),
+      'offline' => (Colors.red, 'офлайн'),
+      _ => (Colors.grey, 'неизвестно'),
+    };
+
+    return Row(
+      mainAxisSize: MainAxisSize.min,
+      children: [
+        Container(
+          width: 8,
+          height: 8,
+          decoration: BoxDecoration(color: color, shape: BoxShape.circle),
+        ),
+        const SizedBox(width: 6),
+        Text(label, style: TextStyle(color: color, fontSize: 12)),
+      ],
+    );
+  }
+}
diff --git a/linux/flutter/generated_plugin_registrant.cc b/linux/flutter/generated_plugin_registrant.cc
index e71a16d..d0e7f79 100644
--- a/linux/flutter/generated_plugin_registrant.cc
+++ b/linux/flutter/generated_plugin_registrant.cc
@@ -6,6 +6,10 @@
 
 #include "generated_plugin_registrant.h"
 
+#include <flutter_secure_storage_linux/flutter_secure_storage_linux_plugin.h>
 
 void fl_register_plugins(FlPluginRegistry* registry) {
+  g_autoptr(FlPluginRegistrar) flutter_secure_storage_linux_registrar =
+      fl_plugin_registry_get_registrar_for_plugin(registry, "FlutterSecureStorageLinuxPlugin");
+  flutter_secure_storage_linux_plugin_register_with_registrar(flutter_secure_storage_linux_registrar);
 }
diff --git a/linux/flutter/generated_plugins.cmake b/linux/flutter/generated_plugins.cmake
index 2e1de87..ce58916 100644
--- a/linux/flutter/generated_plugins.cmake
+++ b/linux/flutter/generated_plugins.cmake
@@ -3,9 +3,11 @@
 #
 
 list(APPEND FLUTTER_PLUGIN_LIST
+  flutter_secure_storage_linux
 )
 
 list(APPEND FLUTTER_FFI_PLUGIN_LIST
+  jni
 )
 
 set(PLUGIN_BUNDLED_LIBRARIES)
diff --git a/macos/Flutter/GeneratedPluginRegistrant.swift b/macos/Flutter/GeneratedPluginRegistrant.swift
index cccf817..67d652c 100644
--- a/macos/Flutter/GeneratedPluginRegistrant.swift
+++ b/macos/Flutter/GeneratedPluginRegistrant.swift
@@ -5,6 +5,8 @@
 import FlutterMacOS
 import Foundation
 
+import flutter_secure_storage_darwin
 
 func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
+  FlutterSecureStorageDarwinPlugin.register(with: registry.registrar(forPlugin: "FlutterSecureStorageDarwinPlugin"))
 }
diff --git a/pubspec.lock b/pubspec.lock
index 582d01a..f21ca4a 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -1,6 +1,14 @@
 # Generated by pub
 # See https://dart.dev/tools/pub/glossary#lockfile
 packages:
+  args:
+    dependency: transitive
+    description:
+      name: args
+      sha256: d0481093c50b1da8910eb0bb301626d4d8eb7284aa739614d2b394ee09e3ea04
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.7.0"
   async:
     dependency: transitive
     description:
@@ -33,6 +41,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.1.2"
+  code_assets:
+    dependency: transitive
+    description:
+      name: code_assets
+      sha256: bf394f466ba9205f1812a0433b392d6af280f155f56651eda7c18cc32ed493b8
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.2.1"
   collection:
     dependency: transitive
     description:
@@ -41,6 +57,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.19.1"
+  crypto:
+    dependency: transitive
+    description:
+      name: crypto
+      sha256: c8ea0233063ba03258fbcf2ca4d6dadfefe14f02fab57702265467a19f27fadf
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.7"
   cupertino_icons:
     dependency: "direct main"
     description:
@@ -57,6 +81,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.3.3"
+  ffi:
+    dependency: transitive
+    description:
+      name: ffi
+      sha256: "6d7fd89431262d8f3125e81b50d3847a091d846eafcd4fdb88dd06f36d705a45"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.0"
+  ffi_leak_tracker:
+    dependency: transitive
+    description:
+      name: ffi_leak_tracker
+      sha256: "4093d4ef9ca06ffe2786e73bfb25e22aa92112b9bb4ec941f11e3e6b61489a97"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.1.2"
   flutter:
     dependency: "direct main"
     description: flutter
@@ -70,11 +110,112 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "6.0.0"
+  flutter_secure_storage:
+    dependency: "direct main"
+    description:
+      name: flutter_secure_storage
+      sha256: "15e8c8fe269fdf7d469b23008ab3df521c8b826ed345820532364c31bdebace6"
+      url: "https://pub.dev"
+    source: hosted
+    version: "11.0.0"
+  flutter_secure_storage_darwin:
+    dependency: transitive
+    description:
+      name: flutter_secure_storage_darwin
+      sha256: ac6d76a752de0cd738334eb4b21743fc4943f449f5b6e308f18838b048c02ac0
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.4.0"
+  flutter_secure_storage_linux:
+    dependency: transitive
+    description:
+      name: flutter_secure_storage_linux
+      sha256: "76fa9c841b3b1619fc5b5bc36efc7d158fa2356f223b6caeb1d0c80a54168546"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.2"
+  flutter_secure_storage_platform_interface:
+    dependency: transitive
+    description:
+      name: flutter_secure_storage_platform_interface
+      sha256: "788060052712555182aba55ecb5f8b6e5cb9cfe8f776c83249a61fe3ce877db4"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.3"
+  flutter_secure_storage_web:
+    dependency: transitive
+    description:
+      name: flutter_secure_storage_web
+      sha256: "073a62b3aeb866ab4ce795f960413948e51e5a42a9b0c8333b6daf5bb3208a1c"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.1"
+  flutter_secure_storage_windows:
+    dependency: transitive
+    description:
+      name: flutter_secure_storage_windows
+      sha256: "471951813a97006d899db4948acc654a4f28c440083ea08178935ce20b173ec1"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.2.2"
   flutter_test:
     dependency: "direct dev"
     description: flutter
     source: sdk
     version: "0.0.0"
+  flutter_web_plugins:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  hooks:
+    dependency: transitive
+    description:
+      name: hooks
+      sha256: "9a62a50b50b769a737bc0a8ff381f333529df3ab746b2f6b02e83760231455ba"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.2"
+  http:
+    dependency: "direct main"
+    description:
+      name: http
+      sha256: "87721a4a50b19c7f1d49001e51409bddc46303966ce89a65af4f4e6004896412"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.6.0"
+  http_parser:
+    dependency: transitive
+    description:
+      name: http_parser
+      sha256: "178d74305e7866013777bab2c3d8726205dc5a4dd935297175b19a23a2e66571"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.1.2"
+  jni:
+    dependency: transitive
+    description:
+      name: jni
+      sha256: f038e58b4dc2c9037f50e233175086337e0b305e356d28211bf55f21c504cbd3
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.3"
+  jni_flutter:
+    dependency: transitive
+    description:
+      name: jni_flutter
+      sha256: "7b717011ea40d04fd47c2731d3d1d36eb99eba3435c2753d62489e8c3c9991d5"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.2"
+  jni_util:
+    dependency: transitive
+    description:
+      name: jni_util
+      sha256: "1ba86da04a5f2bf18fde2edb235587e70c5b0fc5bd4ba955f46b00942c3fc35f"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.0"
   leak_tracker:
     dependency: transitive
     description:
@@ -107,6 +248,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "6.1.0"
+  logging:
+    dependency: transitive
+    description:
+      name: logging
+      sha256: c8245ada5f1717ed44271ed1c26b8ce85ca3228fd2ffdb75468ab01979309d61
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.3.0"
   matcher:
     dependency: transitive
     description:
@@ -131,6 +280,30 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.18.0"
+  nested:
+    dependency: transitive
+    description:
+      name: nested
+      sha256: "03bac4c528c64c95c722ec99280375a6f2fc708eec17c7b3f07253b626cd2a20"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.0"
+  objective_c:
+    dependency: transitive
+    description:
+      name: objective_c
+      sha256: b7fb95a6d9a4f009edd63dc5ac69f07420b23a16161c6dd8660290b59c602e8e
+      url: "https://pub.dev"
+    source: hosted
+    version: "9.5.0"
+  package_config:
+    dependency: transitive
+    description:
+      name: package_config
+      sha256: ffcf4cf3d6c0b74ac43708d9f56625506e8a68aa935abe9d267a7330f320eb5d
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.0"
   path:
     dependency: transitive
     description:
@@ -139,6 +312,94 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.9.1"
+  path_provider:
+    dependency: transitive
+    description:
+      name: path_provider
+      sha256: a7f4874f987173da295a61c181b8ee71dab59b332a486b391babf26a1b884825
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.6"
+  path_provider_android:
+    dependency: transitive
+    description:
+      name: path_provider_android
+      sha256: "69cbd515a62b94d32a7944f086b2f82b4ac40a1d45bebfc00813a430ab2dabcd"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.3.1"
+  path_provider_foundation:
+    dependency: transitive
+    description:
+      name: path_provider_foundation
+      sha256: "2a376b7d6392d80cd3705782d2caa734ca4727776db0b6ec36ef3f1855197699"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.6.0"
+  path_provider_linux:
+    dependency: transitive
+    description:
+      name: path_provider_linux
+      sha256: "58c2005f147315b11e9b4a7bc889cd5203e250cba8e3f012dae259b4972b5c16"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.2"
+  path_provider_platform_interface:
+    dependency: transitive
+    description:
+      name: path_provider_platform_interface
+      sha256: "484838772624c3a4b94f1e44a3e19897fee738f2d5c4ce448443b0417f7c9dda"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.3"
+  path_provider_windows:
+    dependency: transitive
+    description:
+      name: path_provider_windows
+      sha256: bd6f00dbd873bfb70d0761682da2b3a2c2fccc2b9e84c495821639601d81afe7
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.3.0"
+  platform:
+    dependency: transitive
+    description:
+      name: platform
+      sha256: "5d6b1b0036a5f331ebc77c850ebc8506cbc1e9416c27e59b439f917a902a4984"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.1.6"
+  plugin_platform_interface:
+    dependency: transitive
+    description:
+      name: plugin_platform_interface
+      sha256: "4820fbfdb9478b1ebae27888254d445073732dae3d6ea81f0b7e06d5dedc3f02"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.8"
+  provider:
+    dependency: "direct main"
+    description:
+      name: provider
+      sha256: "4e82183fa20e5ca25703ead7e05de9e4cceed1fbd1eadc1ac3cb6f565a09f272"
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.1.5+1"
+  pub_semver:
+    dependency: transitive
+    description:
+      name: pub_semver
+      sha256: "5bfcf68ca79ef689f8990d1160781b4bad40a3bd5e5218ad4076ddb7f4081585"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.0"
+  record_use:
+    dependency: transitive
+    description:
+      name: record_use
+      sha256: "2551bd8eecfe95d14ae75f6021ad0248be5c27f138c2ec12fcb52b500b3ba1ed"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.6.0"
   sky_engine:
     dependency: transitive
     description: flutter
@@ -192,6 +453,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.7.11"
+  typed_data:
+    dependency: transitive
+    description:
+      name: typed_data
+      sha256: f9049c039ebfeb4cf7a7104a675823cd72dba8297f264b6637062516699fa006
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.4.0"
   vector_math:
     dependency: transitive
     description:
@@ -208,6 +477,38 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "15.2.0"
+  web:
+    dependency: transitive
+    description:
+      name: web
+      sha256: "868d88a33d8a87b18ffc05f9f030ba328ffefba92d6c127917a2ba740f9cfe4a"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.1"
+  win32:
+    dependency: transitive
+    description:
+      name: win32
+      sha256: a0b93865d5644f11cf6a8c3f6db909f1ec168958b5805f6cc684adea957cd63d
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.4.0"
+  xdg_directories:
+    dependency: transitive
+    description:
+      name: xdg_directories
+      sha256: "7a3f37b05d989967cdddcbb571f1ea834867ae2faa29725fd085180e0883aa15"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.0"
+  yaml:
+    dependency: transitive
+    description:
+      name: yaml
+      sha256: b9da305ac7c39faa3f030eccd175340f968459dae4af175130b3fc47e40d76ce
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.1.3"
 sdks:
   dart: ">=3.12.2 <4.0.0"
-  flutter: ">=3.18.0-18.0.pre.54"
+  flutter: ">=3.38.4"
diff --git a/pubspec.yaml b/pubspec.yaml
index b129c3d..34ca3a9 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -34,6 +34,9 @@ dependencies:
   # The following adds the Cupertino Icons font to your application.
   # Use with the CupertinoIcons class for iOS style icons.
   cupertino_icons: ^1.0.8
+  http: ^1.6.0
+  provider: ^6.1.5+1
+  flutter_secure_storage: ^11.0.0
 
 dev_dependencies:
   flutter_test:
diff --git a/test/widget_test.dart b/test/widget_test.dart
index b909fa2..7f026eb 100644
--- a/test/widget_test.dart
+++ b/test/widget_test.dart
@@ -1,30 +1,24 @@
-// This is a basic Flutter widget test.
-//
-// To perform an interaction with a widget in your test, use the WidgetTester
-// utility in the flutter_test package. For example, you can send tap and scroll
-// gestures. You can also use WidgetTester to find child widgets in the widget
-// tree, read text, and verify that the values of widget properties are correct.
-
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
 
-import 'package:home_automation_mobile/main.dart';
+import 'package:home_automation_mobile/screens/login_screen.dart';
 
 void main() {
-  testWidgets('Counter increments smoke test', (WidgetTester tester) async {
-    // Build our app and trigger a frame.
-    await tester.pumpWidget(const MyApp());
+  testWidgets('Login screen shows email/password fields and a submit button', (WidgetTester tester) async {
+    await tester.pumpWidget(const MaterialApp(home: LoginScreen()));
 
-    // Verify that our counter starts at 0.
-    expect(find.text('0'), findsOneWidget);
-    expect(find.text('1'), findsNothing);
+    expect(find.text('Email'), findsOneWidget);
+    expect(find.text('Пароль'), findsOneWidget);
+    expect(find.text('Войти'), findsOneWidget);
+  });
 
-    // Tap the '+' icon and trigger a frame.
-    await tester.tap(find.byIcon(Icons.add));
+  testWidgets('Login screen validates empty fields before submitting', (WidgetTester tester) async {
+    await tester.pumpWidget(const MaterialApp(home: LoginScreen()));
+
+    await tester.tap(find.text('Войти'));
     await tester.pump();
 
-    // Verify that our counter has incremented.
-    expect(find.text('0'), findsNothing);
-    expect(find.text('1'), findsOneWidget);
+    expect(find.text('Введите email'), findsOneWidget);
+    expect(find.text('Введите пароль'), findsOneWidget);
   });
 }
diff --git a/windows/flutter/generated_plugin_registrant.cc b/windows/flutter/generated_plugin_registrant.cc
index 8b6d468..0c50753 100644
--- a/windows/flutter/generated_plugin_registrant.cc
+++ b/windows/flutter/generated_plugin_registrant.cc
@@ -6,6 +6,9 @@
 
 #include "generated_plugin_registrant.h"
 
+#include <flutter_secure_storage_windows/flutter_secure_storage_windows_plugin.h>
 
 void RegisterPlugins(flutter::PluginRegistry* registry) {
+  FlutterSecureStorageWindowsPluginRegisterWithRegistrar(
+      registry->GetRegistrarForPlugin("FlutterSecureStorageWindowsPlugin"));
 }
diff --git a/windows/flutter/generated_plugins.cmake b/windows/flutter/generated_plugins.cmake
index b93c4c3..d0b33f8 100644
--- a/windows/flutter/generated_plugins.cmake
+++ b/windows/flutter/generated_plugins.cmake
@@ -3,9 +3,11 @@
 #
 
 list(APPEND FLUTTER_PLUGIN_LIST
+  flutter_secure_storage_windows
 )
 
 list(APPEND FLUTTER_FFI_PLUGIN_LIST
+  jni
 )
 
 set(PLUGIN_BUNDLED_LIBRARIES)