feat(M001): M001: ITS Transport Android App - Context

Completed slices: - S01: Project scaffold + Auth - S02: Today's routes tab - S03: Service history tab - S04: Add new service wizard - S05: FCM push notifications - S06: Polish & integration verification Branch: milestone/M001
2026-03-25 13:45:52 +01:00
parent 8c75108ae8
commit 1c19456516
51 changed files with 5704 additions and 0 deletions
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -0,0 +1,107 @@
+plugins {
+    alias(libs.plugins.android.application)
+    alias(libs.plugins.google.services)
+    alias(libs.plugins.kotlin.android)
+    alias(libs.plugins.kotlin.compose)
+    alias(libs.plugins.hilt)
+    alias(libs.plugins.ksp)
+}
+
+android {
+    namespace = "pl.firmatpp.itstransport"
+    compileSdk = 35
+
+    defaultConfig {
+        applicationId = "pl.firmatpp.itstransport"
+        minSdk = 26
+        targetSdk = 35
+        versionCode = 1
+        versionName = "1.0.0"
+
+        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        debug {
+            isMinifyEnabled = false
+            buildConfigField(
+                "String",
+                "API_BASE_URL",
+                "\"https://itstransport.moghome53.top/api\""
+            )
+        }
+        release {
+            isMinifyEnabled = true
+            proguardFiles(
+                getDefaultProguardFile("proguard-android-optimize.txt"),
+                "proguard-rules.pro"
+            )
+            buildConfigField(
+                "String",
+                "API_BASE_URL",
+                "\"https://api-intranet.firmatpp.pl/api\""
+            )
+        }
+    }
+
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_17
+        targetCompatibility = JavaVersion.VERSION_17
+    }
+
+    kotlinOptions {
+        jvmTarget = "17"
+    }
+
+    buildFeatures {
+        compose = true
+        buildConfig = true
+    }
+}
+
+dependencies {
+    // Compose BOM
+    val composeBom = platform(libs.compose.bom)
+    implementation(composeBom)
+    androidTestImplementation(composeBom)
+
+    // Compose
+    implementation(libs.compose.ui)
+    implementation(libs.compose.ui.graphics)
+    implementation(libs.compose.ui.tooling.preview)
+    implementation(libs.compose.material3)
+    debugImplementation(libs.compose.ui.tooling)
+    debugImplementation(libs.compose.ui.test.manifest)
+    androidTestImplementation(libs.compose.ui.test.junit4)
+
+    // Activity Compose
+    implementation(libs.activity.compose)
+
+    // Navigation Compose
+    implementation(libs.navigation.compose)
+
+    // Hilt
+    implementation(libs.hilt.android)
+    ksp(libs.hilt.compiler)
+    implementation(libs.hilt.navigation.compose)
+
+    // Retrofit + OkHttp
+    implementation(libs.retrofit)
+    implementation(libs.retrofit.converter.gson)
+    implementation(libs.okhttp)
+    implementation(libs.okhttp.logging.interceptor)
+
+    // Security (EncryptedSharedPreferences)
+    implementation(libs.security.crypto)
+
+    // Lifecycle
+    implementation(libs.lifecycle.viewmodel.compose)
+    implementation(libs.lifecycle.runtime.compose)
+
+    // Core KTX
+    implementation(libs.core.ktx)
+
+    // Firebase
+    implementation(platform(libs.firebase.bom))
+    implementation(libs.firebase.messaging)
+}
--- a/app/google-services.json
+++ b/app/google-services.json
@@ -0,0 +1,30 @@
+{
+  "_NOTE": "PLACEHOLDER — Replace with the real google-services.json from Firebase Console (Project Settings > General > Your apps > Download google-services.json).",
+  "project_info": {
+    "project_number": "000000000000",
+    "project_id": "its-transport-placeholder",
+    "storage_bucket": "its-transport-placeholder.appspot.com"
+  },
+  "client": [
+    {
+      "client_info": {
+        "mobilesdk_app_id": "1:000000000000:android:0000000000000000",
+        "android_client_info": {
+          "package_name": "pl.firmatpp.itstransport"
+        }
+      },
+      "oauth_client": [],
+      "api_key": [
+        {
+          "current_key": "AIzaSyXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
+        }
+      ],
+      "services": {
+        "appinvite_service": {
+          "other_platform_oauth_client": []
+        }
+      }
+    }
+  ],
+  "configuration_version": "1"
+}
--- a/app/proguard-rules.pro
+++ b/app/proguard-rules.pro
@@ -0,0 +1,39 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.kts.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# Retrofit
+-keepattributes Signature
+-keepattributes Exceptions
+-keepclassmembers,allowshrinking,allowobfuscation interface * {
+    @retrofit2.http.* <methods>;
+}
+-dontwarn javax.annotation.**
+-dontwarn kotlin.Unit
+-dontwarn retrofit2.KotlinExtensions
+-dontwarn retrofit2.KotlinExtensions$*
+
+# Gson
+-keepattributes *Annotation*
+-keep class com.google.gson.stream.** { *; }
+-keep class * implements com.google.gson.TypeAdapterFactory
+-keep class * implements com.google.gson.JsonSerializer
+-keep class * implements com.google.gson.JsonDeserializer
+
+# OkHttp
+-dontwarn okhttp3.**
+-dontwarn okio.**
+
+# Hilt
+-keep class dagger.hilt.** { *; }
+-keep class javax.inject.** { *; }
+-keep class * extends dagger.hilt.android.internal.managers.ComponentSupplier { *; }
+
+# Firebase
+-keep class com.google.firebase.** { *; }
+-dontwarn com.google.firebase.**
+-keep class com.google.android.gms.** { *; }
+-dontwarn com.google.android.gms.**
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
+
+    <application
+        android:name=".ITSTransportApp"
+        android:allowBackup="true"
+        android:label="@string/app_name"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.Material3.DayNight.NoActionBar">
+
+        <activity
+            android:name=".MainActivity"
+            android:exported="true"
+            android:theme="@style/Theme.Material3.DayNight.NoActionBar">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+
+        <service
+            android:name=".data.fcm.FCMService"
+            android:exported="false">
+            <intent-filter>
+                <action android:name="com.google.firebase.MESSAGING_EVENT" />
+            </intent-filter>
+        </service>
+    </application>
+
+</manifest>
--- a/app/src/main/java/pl/firmatpp/itstransport/ITSTransportApp.kt
+++ b/app/src/main/java/pl/firmatpp/itstransport/ITSTransportApp.kt
@@ -0,0 +1,7 @@
+package pl.firmatpp.itstransport
+
+import android.app.Application
+import dagger.hilt.android.HiltAndroidApp
+
+@HiltAndroidApp
+class ITSTransportApp : Application()
--- a/app/src/main/java/pl/firmatpp/itstransport/MainActivity.kt
+++ b/app/src/main/java/pl/firmatpp/itstransport/MainActivity.kt
@@ -0,0 +1,28 @@
+package pl.firmatpp.itstransport
+
+import android.os.Bundle
+import androidx.activity.ComponentActivity
+import androidx.activity.compose.setContent
+import androidx.activity.enableEdgeToEdge
+import dagger.hilt.android.AndroidEntryPoint
+import pl.firmatpp.itstransport.data.auth.TokenManager
+import pl.firmatpp.itstransport.ui.navigation.AppNavigation
+import pl.firmatpp.itstransport.ui.theme.ITSTransportTheme
+import javax.inject.Inject
+
+@AndroidEntryPoint
+class MainActivity : ComponentActivity() {
+
+    @Inject
+    lateinit var tokenManager: TokenManager
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        enableEdgeToEdge()
+        setContent {
+            ITSTransportTheme {
+                AppNavigation(tokenManager = tokenManager)
+            }
+        }
+    }
+}
--- a/app/src/main/java/pl/firmatpp/itstransport/data/api/AuthApi.kt
+++ b/app/src/main/java/pl/firmatpp/itstransport/data/api/AuthApi.kt
@@ -0,0 +1,23 @@
+package pl.firmatpp.itstransport.data.api
+
+import pl.firmatpp.itstransport.data.model.LoginRequest
+import pl.firmatpp.itstransport.data.model.LoginResponse
+import pl.firmatpp.itstransport.data.model.UserResponse
+import retrofit2.http.Body
+import retrofit2.http.GET
+import retrofit2.http.POST
+
+interface AuthApi {
+
+    @POST("auth/login")
+    suspend fun login(@Body request: LoginRequest): LoginResponse
+
+    @GET("auth/user")
+    suspend fun getUser(): UserResponse
+
+    @POST("auth/logout")
+    suspend fun logout()
+
+    @POST("auth/refresh")
+    suspend fun refresh(): LoginResponse
+}
--- a/app/src/main/java/pl/firmatpp/itstransport/data/api/AuthInterceptor.kt
+++ b/app/src/main/java/pl/firmatpp/itstransport/data/api/AuthInterceptor.kt
@@ -0,0 +1,46 @@
+package pl.firmatpp.itstransport.data.api
+
+import android.util.Log
+import okhttp3.Interceptor
+import okhttp3.Response
+import pl.firmatpp.itstransport.data.auth.TokenManager
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class AuthInterceptor @Inject constructor(
+    private val tokenManager: TokenManager,
+) : Interceptor {
+
+    companion object {
+        private const val TAG = "AuthInterceptor"
+        private const val HEADER_AUTHORIZATION = "Authorization"
+        private const val TOKEN_PREFIX = "Bearer "
+    }
+
+    override fun intercept(chain: Interceptor.Chain): Response {
+        val originalRequest = chain.request()
+
+        // Attach Bearer token if available
+        val token = tokenManager.getToken()
+        val request = if (token != null) {
+            Log.d(TAG, "Attaching Bearer token to request: ${originalRequest.url}")
+            originalRequest.newBuilder()
+                .header(HEADER_AUTHORIZATION, "$TOKEN_PREFIX$token")
+                .build()
+        } else {
+            Log.d(TAG, "No token available, proceeding without auth: ${originalRequest.url}")
+            originalRequest
+        }
+
+        val response = chain.proceed(request)
+
+        // Handle 401 — clear token, do NOT retry to avoid infinite loop
+        if (response.code == 401) {
+            Log.w(TAG, "Received 401 Unauthenticated for ${request.url} — clearing token")
+            tokenManager.clearToken()
+        }
+
+        return response
+    }
+}
--- a/app/src/main/java/pl/firmatpp/itstransport/data/api/DeviceTokenApi.kt
+++ b/app/src/main/java/pl/firmatpp/itstransport/data/api/DeviceTokenApi.kt
@@ -0,0 +1,14 @@
+package pl.firmatpp.itstransport.data.api
+
+import retrofit2.http.Body
+import retrofit2.http.HTTP
+import retrofit2.http.POST
+
+interface DeviceTokenApi {
+
+    @POST("device-tokens")
+    suspend fun registerToken(@Body body: Map<String, String>)
+
+    @HTTP(method = "DELETE", path = "device-tokens", hasBody = true)
+    suspend fun unregisterToken(@Body body: Map<String, String>)
+}
--- a/app/src/main/java/pl/firmatpp/itstransport/data/api/SchedulerApi.kt
+++ b/app/src/main/java/pl/firmatpp/itstransport/data/api/SchedulerApi.kt
@@ -0,0 +1,18 @@
+package pl.firmatpp.itstransport.data.api
+
+import pl.firmatpp.itstransport.data.model.SchedulerDriverResponse
+import pl.firmatpp.itstransport.data.model.SchedulerEventResponse
+import retrofit2.http.GET
+import retrofit2.http.Query
+
+interface SchedulerApi {
+
+    @GET("scheduler/events")
+    suspend fun getEvents(
+        @Query("start") start: String,
+        @Query("end") end: String,
+    ): List<SchedulerEventResponse>
+
+    @GET("scheduler/resources")
+    suspend fun getResources(): List<SchedulerDriverResponse>
+}
--- a/app/src/main/java/pl/firmatpp/itstransport/data/api/ServiceApi.kt
+++ b/app/src/main/java/pl/firmatpp/itstransport/data/api/ServiceApi.kt
@@ -0,0 +1,20 @@
+package pl.firmatpp.itstransport.data.api
+
+import pl.firmatpp.itstransport.data.model.ServiceEventsResponse
+import retrofit2.http.GET
+import retrofit2.http.Query
+
+interface ServiceApi {
+
+    @GET("service-events")
+    suspend fun getEvents(
+        @Query("page") page: Int,
+        @Query("per_page") perPage: Int,
+        @Query("search") search: String? = null,
+        @Query("source") source: String? = null,
+        @Query("date_from") dateFrom: String? = null,
+        @Query("date_to") dateTo: String? = null,
+        @Query("sort_by") sortBy: String? = null,
+        @Query("sort_direction") sortDirection: String? = null,
+    ): ServiceEventsResponse
+}
--- a/app/src/main/java/pl/firmatpp/itstransport/data/api/ServiceWizardApi.kt
+++ b/app/src/main/java/pl/firmatpp/itstransport/data/api/ServiceWizardApi.kt
@@ -0,0 +1,31 @@
+package pl.firmatpp.itstransport.data.api
+
+import pl.firmatpp.itstransport.data.model.CreateServiceEventRequest
+import pl.firmatpp.itstransport.data.model.CreateServiceEventResponse
+import pl.firmatpp.itstransport.data.model.ServiceTypesResponse
+import pl.firmatpp.itstransport.data.model.Trailer
+import pl.firmatpp.itstransport.data.model.Truck
+import retrofit2.http.Body
+import retrofit2.http.GET
+import retrofit2.http.POST
+
+interface ServiceWizardApi {
+
+    /** Returns a bare JSON array — no wrapper. */
+    @GET("trucks/all")
+    suspend fun getTrucks(): List<Truck>
+
+    /** Returns a bare JSON array — no wrapper. */
+    @GET("trailers/all")
+    suspend fun getTrailers(): List<Trailer>
+
+    /** Returns wrapped { data: [...] }. */
+    @GET("maintenance/service-types")
+    suspend fun getServiceTypes(): ServiceTypesResponse
+
+    /** Creates a new service event. Returns 201 with { data: <event> }. */
+    @POST("service-events")
+    suspend fun createServiceEvent(
+        @Body request: CreateServiceEventRequest,
+    ): CreateServiceEventResponse
+}
--- a/app/src/main/java/pl/firmatpp/itstransport/data/auth/AuthRepository.kt
+++ b/app/src/main/java/pl/firmatpp/itstransport/data/auth/AuthRepository.kt
@@ -0,0 +1,140 @@
+package pl.firmatpp.itstransport.data.auth
+
+import android.util.Log
+import com.google.firebase.messaging.FirebaseMessaging
+import com.google.gson.Gson
+import kotlinx.coroutines.tasks.await
+import pl.firmatpp.itstransport.data.api.AuthApi
+import pl.firmatpp.itstransport.data.model.ApiError
+import pl.firmatpp.itstransport.data.model.LoginRequest
+import pl.firmatpp.itstransport.data.model.UserResponse
+import pl.firmatpp.itstransport.data.repository.DeviceTokenRepository
+import retrofit2.HttpException
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class AuthRepository @Inject constructor(
+    private val authApi: AuthApi,
+    private val tokenManager: TokenManager,
+    private val deviceTokenRepository: DeviceTokenRepository,
+) {
+    companion object {
+        private const val TAG = "AuthRepository"
+    }
+
+    suspend fun login(email: String, password: String): Result<UserResponse> {
+        return try {
+            val loginResponse = authApi.login(LoginRequest(email, password))
+            tokenManager.saveToken(loginResponse.accessToken)
+            Log.d(TAG, "Login successful, token saved")
+
+            // Register FCM token with backend after successful login
+            registerFcmToken()
+
+            // Fetch user profile after login
+            val user = authApi.getUser()
+            Result.success(user)
+        } catch (e: HttpException) {
+            val apiError = parseApiError(e)
+            Log.w(TAG, "Login failed with HTTP ${e.code()}: ${apiError?.message ?: e.message()}")
+            Result.failure(ApiException(e.code(), apiError, e))
+        } catch (e: Exception) {
+            Log.w(TAG, "Login failed with exception: ${e.javaClass.simpleName}")
+            Result.failure(e)
+        }
+    }
+
+    suspend fun logout(): Result<Unit> {
+        return try {
+            // Unregister FCM token before logout
+            unregisterFcmToken()
+
+            authApi.logout()
+            tokenManager.clearToken()
+            Log.d(TAG, "Logout successful")
+            Result.success(Unit)
+        } catch (e: Exception) {
+            // Clear token locally even if remote logout fails
+            tokenManager.clearToken()
+            Log.w(TAG, "Logout remote call failed, token cleared locally: ${e.javaClass.simpleName}")
+            Result.success(Unit)
+        }
+    }
+
+    private suspend fun registerFcmToken() {
+        try {
+            val fcmToken = FirebaseMessaging.getInstance().token.await()
+            val result = deviceTokenRepository.registerToken(fcmToken)
+            if (result.isSuccess) {
+                Log.d(TAG, "FCM token registered with backend")
+            } else {
+                Log.w(TAG, "FCM token registration failed: ${result.exceptionOrNull()?.message}")
+            }
+        } catch (e: Exception) {
+            // Non-fatal: push won't work but login should still succeed
+            Log.w(TAG, "Failed to get/register FCM token: ${e.javaClass.simpleName}")
+        }
+    }
+
+    private suspend fun unregisterFcmToken() {
+        try {
+            val fcmToken = FirebaseMessaging.getInstance().token.await()
+            val result = deviceTokenRepository.unregisterToken(fcmToken)
+            if (result.isSuccess) {
+                Log.d(TAG, "FCM token unregistered from backend")
+            } else {
+                Log.w(TAG, "FCM token unregistration failed: ${result.exceptionOrNull()?.message}")
+            }
+        } catch (e: Exception) {
+            // Non-fatal: stale token will be cleaned up by backend on next send
+            Log.w(TAG, "Failed to get/unregister FCM token: ${e.javaClass.simpleName}")
+        }
+    }
+
+    suspend fun getUser(): Result<UserResponse> {
+        return try {
+            val user = authApi.getUser()
+            Result.success(user)
+        } catch (e: HttpException) {
+            val apiError = parseApiError(e)
+            Log.w(TAG, "Get user failed with HTTP ${e.code()}: ${apiError?.message ?: e.message()}")
+            Result.failure(ApiException(e.code(), apiError, e))
+        } catch (e: Exception) {
+            Log.w(TAG, "Get user failed: ${e.javaClass.simpleName}")
+            Result.failure(e)
+        }
+    }
+
+    fun isLoggedIn(): Boolean {
+        return tokenManager.hasToken()
+    }
+
+    fun clearAuth() {
+        tokenManager.clearToken()
+        Log.d(TAG, "Auth cleared")
+    }
+
+    private fun parseApiError(e: HttpException): ApiError? {
+        return try {
+            val errorBody = e.response()?.errorBody()?.string()
+            if (errorBody != null) {
+                Gson().fromJson(errorBody, ApiError::class.java)?.copy(status = e.code())
+            } else {
+                null
+            }
+        } catch (_: Exception) {
+            null
+        }
+    }
+}
+
+/**
+ * Custom exception wrapping HTTP errors with parsed API error details.
+ * Preserves the original HttpException as the cause for full stack trace access.
+ */
+class ApiException(
+    val code: Int,
+    val apiError: ApiError?,
+    cause: Throwable,
+) : Exception(apiError?.message ?: "HTTP $code error", cause)
--- a/app/src/main/java/pl/firmatpp/itstransport/data/auth/TokenManager.kt
+++ b/app/src/main/java/pl/firmatpp/itstransport/data/auth/TokenManager.kt
@@ -0,0 +1,81 @@
+package pl.firmatpp.itstransport.data.auth
+
+import android.content.Context
+import android.content.SharedPreferences
+import android.util.Log
+import androidx.security.crypto.EncryptedSharedPreferences
+import androidx.security.crypto.MasterKey
+import dagger.hilt.android.qualifiers.ApplicationContext
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class TokenManager @Inject constructor(
+    @ApplicationContext private val context: Context,
+) {
+    companion object {
+        private const val TAG = "TokenManager"
+        private const val PREFS_NAME = "its_transport_auth"
+        private const val ENCRYPTED_PREFS_NAME = "its_transport_auth_encrypted"
+        private const val KEY_ACCESS_TOKEN = "access_token"
+    }
+
+    private val _isLoggedIn = MutableStateFlow(false)
+    val isLoggedIn: StateFlow<Boolean> = _isLoggedIn.asStateFlow()
+
+    private val prefs: SharedPreferences by lazy { createPreferences() }
+
+    init {
+        // Deferred check — triggers lazy prefs init
+        _isLoggedIn.value = hasToken()
+        Log.d(TAG, "Initial isLoggedIn: ${_isLoggedIn.value}")
+    }
+
+    private fun createPreferences(): SharedPreferences {
+        return try {
+            val masterKey = MasterKey.Builder(context)
+                .setKeyScheme(MasterKey.KeyScheme.AES256_GCM)
+                .build()
+
+            EncryptedSharedPreferences.create(
+                context,
+                ENCRYPTED_PREFS_NAME,
+                masterKey,
+                EncryptedSharedPreferences.PrefKeyEncryptionScheme.AES256_SIV,
+                EncryptedSharedPreferences.PrefValueEncryptionScheme.AES256_GCM,
+            )
+        } catch (e: Exception) {
+            Log.w(TAG, "Failed to create EncryptedSharedPreferences, falling back to regular prefs", e)
+            context.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE)
+        }
+    }
+
+    @Synchronized
+    fun saveToken(token: String) {
+        prefs.edit().putString(KEY_ACCESS_TOKEN, token).apply()
+        _isLoggedIn.value = true
+        Log.d(TAG, "Token saved (non-null: true)")
+    }
+
+    @Synchronized
+    fun getToken(): String? {
+        val token = prefs.getString(KEY_ACCESS_TOKEN, null)
+        Log.d(TAG, "Token retrieved (non-null: ${token != null})")
+        return token
+    }
+
+    @Synchronized
+    fun clearToken() {
+        prefs.edit().remove(KEY_ACCESS_TOKEN).apply()
+        _isLoggedIn.value = false
+        Log.d(TAG, "Token cleared — isLoggedIn: false")
+    }
+
+    @Synchronized
+    fun hasToken(): Boolean {
+        return getToken() != null
+    }
+}
--- a/app/src/main/java/pl/firmatpp/itstransport/data/fcm/FCMService.kt
+++ b/app/src/main/java/pl/firmatpp/itstransport/data/fcm/FCMService.kt
@@ -0,0 +1,116 @@
+package pl.firmatpp.itstransport.data.fcm
+
+import android.app.NotificationChannel
+import android.app.NotificationManager
+import android.content.Context
+import android.util.Log
+import androidx.core.app.NotificationCompat
+import androidx.core.app.NotificationManagerCompat
+import com.google.firebase.messaging.FirebaseMessagingService
+import com.google.firebase.messaging.RemoteMessage
+import dagger.hilt.EntryPoint
+import dagger.hilt.InstallIn
+import dagger.hilt.android.EntryPointAccessors
+import dagger.hilt.components.SingletonComponent
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.SupervisorJob
+import kotlinx.coroutines.launch
+import pl.firmatpp.itstransport.data.auth.TokenManager
+import pl.firmatpp.itstransport.data.repository.DeviceTokenRepository
+
+class FCMService : FirebaseMessagingService() {
+
+    companion object {
+        private const val TAG = "FCMService"
+        const val CHANNEL_ID = "its_transport_notifications"
+        private const val CHANNEL_NAME = "Powiadomienia ITS Transport"
+        private var notificationId = 0
+    }
+
+    @EntryPoint
+    @InstallIn(SingletonComponent::class)
+    interface FCMServiceEntryPoint {
+        fun tokenManager(): TokenManager
+        fun deviceTokenRepository(): DeviceTokenRepository
+    }
+
+    private val serviceScope = CoroutineScope(SupervisorJob() + Dispatchers.IO)
+
+    private fun getEntryPoint(): FCMServiceEntryPoint {
+        return EntryPointAccessors.fromApplication(
+            applicationContext,
+            FCMServiceEntryPoint::class.java,
+        )
+    }
+
+    override fun onCreate() {
+        super.onCreate()
+        createNotificationChannel()
+    }
+
+    override fun onNewToken(token: String) {
+        super.onNewToken(token)
+        Log.d(TAG, "onNewToken: ${token.take(10)}…")
+
+        val entryPoint = getEntryPoint()
+        if (entryPoint.tokenManager().hasToken()) {
+            serviceScope.launch {
+                val result = entryPoint.deviceTokenRepository().registerToken(token)
+                if (result.isSuccess) {
+                    Log.d(TAG, "Re-registered new FCM token with backend")
+                } else {
+                    Log.w(TAG, "Failed to re-register new FCM token: ${result.exceptionOrNull()?.message}")
+                }
+            }
+        } else {
+            Log.d(TAG, "User not logged in, skipping token registration")
+        }
+    }
+
+    override fun onMessageReceived(message: RemoteMessage) {
+        super.onMessageReceived(message)
+        Log.d(TAG, "onMessageReceived from: ${message.from}, data keys: ${message.data.keys}")
+
+        val title = message.notification?.title
+            ?: message.data["title"]
+            ?: "ITS Transport"
+        val body = message.notification?.body
+            ?: message.data["body"]
+            ?: return // Nothing to display if no body
+
+        showNotification(title, body)
+    }
+
+    private fun showNotification(title: String, body: String) {
+        val notification = NotificationCompat.Builder(this, CHANNEL_ID)
+            .setSmallIcon(android.R.drawable.ic_dialog_info)
+            .setContentTitle(title)
+            .setContentText(body)
+            .setStyle(NotificationCompat.BigTextStyle().bigText(body))
+            .setAutoCancel(true)
+            .setDefaults(NotificationCompat.DEFAULT_SOUND)
+            .setPriority(NotificationCompat.PRIORITY_HIGH)
+            .build()
+
+        try {
+            NotificationManagerCompat.from(this).notify(notificationId++, notification)
+        } catch (e: SecurityException) {
+            // POST_NOTIFICATIONS permission not granted — log and skip
+            Log.w(TAG, "Cannot show notification — POST_NOTIFICATIONS not granted")
+        }
+    }
+
+    private fun createNotificationChannel() {
+        val channel = NotificationChannel(
+            CHANNEL_ID,
+            CHANNEL_NAME,
+            NotificationManager.IMPORTANCE_HIGH,
+        ).apply {
+            description = "Powiadomienia o trasach i serwisach"
+        }
+        val manager = getSystemService(NotificationManager::class.java)
+        manager.createNotificationChannel(channel)
+        Log.d(TAG, "NotificationChannel '$CHANNEL_ID' created")
+    }
+}
--- a/app/src/main/java/pl/firmatpp/itstransport/data/model/AuthModels.kt
+++ b/app/src/main/java/pl/firmatpp/itstransport/data/model/AuthModels.kt
@@ -0,0 +1,29 @@
+package pl.firmatpp.itstransport.data.model
+
+import com.google.gson.annotations.SerializedName
+
+data class LoginRequest(
+    val email: String,
+    val password: String,
+)
+
+data class LoginResponse(
+    @SerializedName("access_token") val accessToken: String,
+    @SerializedName("token_type") val tokenType: String,
+)
+
+data class UserResponse(
+    val id: Long,
+    val name: String,
+    val email: String,
+    @SerializedName("created_at") val createdAt: String,
+    @SerializedName("updated_at") val updatedAt: String,
+    val roles: List<String>,
+    val permissions: List<String>,
+)
+
+data class ApiError(
+    val message: String,
+    val errors: Map<String, List<String>>? = null,
+    val status: Int? = null,
+)
--- a/app/src/main/java/pl/firmatpp/itstransport/data/model/SchedulerModels.kt
+++ b/app/src/main/java/pl/firmatpp/itstransport/data/model/SchedulerModels.kt
@@ -0,0 +1,57 @@
+package pl.firmatpp.itstransport.data.model
+
+import com.google.gson.annotations.SerializedName
+
+/**
+ * Scheduler event from the backend — represents a single transport route/task.
+ * Maps to the FullCalendar event shape returned by /scheduler/events.
+ */
+data class SchedulerEventResponse(
+    val id: Long,
+    val title: String,
+    @SerializedName("resourceId") val resourceId: String,
+    val start: String,
+    val end: String,
+    val color: String? = null,
+    @SerializedName("extendedProps") val extendedProps: EventExtendedProps,
+)
+
+/**
+ * Extended properties nested inside each scheduler event.
+ * Contains the transport-specific fields displayed on route cards.
+ */
+data class EventExtendedProps(
+    @SerializedName("transport_code") val transportCode: String,
+    @SerializedName("contractor_route") val contractorRoute: String,
+    @SerializedName("truck_plate") val truckPlate: String,
+    @SerializedName("trailer_plate") val trailerPlate: String? = null,
+    val weight: Double? = null,
+    val status: String? = null,
+    @SerializedName("is_external_rental") val isExternalRental: Boolean = false,
+    @SerializedName("external_driver_name") val externalDriverName: String? = null,
+)
+
+/**
+ * Driver resource from the backend — maps resourceId to driver name.
+ * Returned by /scheduler/resources.
+ */
+data class SchedulerDriverResponse(
+    val id: String,
+    val title: String,
+)
+
+/**
+ * UI-ready display model for a single route card.
+ * All fields are pre-resolved (e.g. driverName from resource lookup or external rental).
+ */
+data class RouteDisplayItem(
+    val id: Long,
+    val driverName: String,
+    val transportCode: String,
+    val contractorRoute: String,
+    val truckPlate: String,
+    val trailerPlate: String? = null,
+    val weight: Double? = null,
+    val status: String? = null,
+    val color: String? = null,
+)
--- a/app/src/main/java/pl/firmatpp/itstransport/data/model/ServiceModels.kt
+++ b/app/src/main/java/pl/firmatpp/itstransport/data/model/ServiceModels.kt
@@ -0,0 +1,70 @@
+package pl.firmatpp.itstransport.data.model
+
+import com.google.gson.annotations.SerializedName
+
+data class ServiceEventsResponse(
+    val data: List<ServiceEvent>,
+    val meta: PaginationMeta,
+)
+
+data class PaginationMeta(
+    @SerializedName("current_page") val currentPage: Int,
+    val from: Int?,
+    @SerializedName("last_page") val lastPage: Int,
+    @SerializedName("per_page") val perPage: Int,
+    val to: Int?,
+    val total: Int,
+)
+
+data class ServiceEvent(
+    val id: Long,
+    @SerializedName("costable_type") val costableType: String?,
+    val costable: VehicleRef?,
+    @SerializedName("service_provider") val serviceProvider: ProviderRef?,
+    val user: UserRef?,
+    @SerializedName("service_date") val serviceDate: String,
+    val mileage: Int?,
+    @SerializedName("general_notes") val generalNotes: String?,
+    @SerializedName("total_amount") val totalAmount: String?,
+    val currency: String?,
+    val source: String?,
+    val items: List<ServiceItem>,
+    @SerializedName("items_count") val itemsCount: Int,
+)
+
+data class ServiceItem(
+    val id: Long,
+    @SerializedName("cost_type") val costType: CostTypeRef?,
+    val name: String?,
+    val notes: String?,
+    val amount: String?,
+)
+
+data class VehicleRef(
+    val id: Long,
+    val name: String?,
+    @SerializedName("license_plate") val licensePlate: String?,
+)
+
+data class ProviderRef(
+    val id: Long,
+    val name: String?,
+)
+
+data class UserRef(
+    val id: Long,
+    val name: String?,
+)
+
+data class CostTypeRef(
+    val id: Long,
+    val name: String?,
+    val icon: String?,
+)
+
+data class ServiceEventFilters(
+    val search: String = "",
+    val dateFrom: String? = null,
+    val dateTo: String? = null,
+    val source: String? = null,
+)
--- a/app/src/main/java/pl/firmatpp/itstransport/data/model/WizardModels.kt
+++ b/app/src/main/java/pl/firmatpp/itstransport/data/model/WizardModels.kt
@@ -0,0 +1,100 @@
+package pl.firmatpp.itstransport.data.model
+
+import com.google.gson.annotations.SerializedName
+
+// ──────────────────────────────────────────────
+// Vehicle responses — trucks/all and trailers/all
+// Both endpoints return bare JSON arrays [...]
+// ──────────────────────────────────────────────
+
+data class Truck(
+    val id: Long,
+    val name: String?,
+    @SerializedName("license_plate") val licensePlate: String?,
+    val model: String?,
+    val brand: String?,
+    val mileage: Int?,
+    val status: String?,
+)
+
+data class Trailer(
+    val id: Long,
+    val name: String?,
+    @SerializedName("license_plate") val licensePlate: String?,
+    val model: String?,
+    val brand: String?,
+    val status: String?,
+)
+
+// ──────────────────────────────────────────────
+// Service types — maintenance/service-types
+// Returns wrapped { data: [...] }
+// ──────────────────────────────────────────────
+
+data class ServiceTypesResponse(
+    val data: List<ServiceType>,
+)
+
+data class ServiceType(
+    val id: Long,
+    val name: String?,
+    @SerializedName("category") val category: ServiceCategory?,
+    @SerializedName("position_groups") val positionGroups: List<PositionGroup>?,
+)
+
+data class ServiceCategory(
+    val id: Long,
+    val name: String?,
+    val icon: String?,
+    @SerializedName("vehicle_type") val vehicleType: String?, // "all", "truck", "truck_trailer"
+)
+
+data class PositionGroup(
+    val id: Long,
+    val name: String?,
+    @SerializedName("vehicle_type") val vehicleType: String?, // "all", "truck", "truck_trailer"
+    val positions: List<Position>?,
+)
+
+data class Position(
+    val id: Long,
+    val name: String?,
+)
+
+// ──────────────────────────────────────────────
+// Local state for selected services in the wizard
+// ──────────────────────────────────────────────
+
+data class SelectedService(
+    val serviceType: ServiceType,
+    val selectedPositions: List<Position> = emptyList(),
+    val notes: String? = null,
+    val amount: String? = null,
+)
+
+// ──────────────────────────────────────────────
+// Submission — POST service-events
+// Accepts CreateServiceEventRequest, returns 201
+// with { data: <event> }
+// ──────────────────────────────────────────────
+
+data class CreateServiceEventRequest(
+    @SerializedName("costable_type") val costableType: String, // "truck" or "truck_trailer"
+    @SerializedName("costable_id") val costableId: Long,
+    @SerializedName("service_date") val serviceDate: String,
+    val mileage: Int? = null,
+    @SerializedName("general_notes") val generalNotes: String? = null,
+    val items: List<CreateServiceItemRequest>,
+)
+
+data class CreateServiceItemRequest(
+    @SerializedName("service_type_id") val serviceTypeId: Long,
+    val name: String?,
+    val notes: String? = null,
+    val amount: String? = null,
+    @SerializedName("position_ids") val positionIds: List<Long>? = null,
+)
+
+data class CreateServiceEventResponse(
+    val data: ServiceEvent,
+)
--- a/app/src/main/java/pl/firmatpp/itstransport/data/repository/DeviceTokenRepository.kt
+++ b/app/src/main/java/pl/firmatpp/itstransport/data/repository/DeviceTokenRepository.kt
@@ -0,0 +1,43 @@
+package pl.firmatpp.itstransport.data.repository
+
+import android.os.Build
+import android.util.Log
+import pl.firmatpp.itstransport.data.api.DeviceTokenApi
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class DeviceTokenRepository @Inject constructor(
+    private val deviceTokenApi: DeviceTokenApi,
+) {
+    companion object {
+        private const val TAG = "DeviceTokenRepository"
+    }
+
+    suspend fun registerToken(token: String): Result<Unit> {
+        return try {
+            val body = mapOf(
+                "token" to token,
+                "device_name" to "${Build.MANUFACTURER} ${Build.MODEL}",
+            )
+            deviceTokenApi.registerToken(body)
+            Log.d(TAG, "FCM token registered: ${token.take(10)}…")
+            Result.success(Unit)
+        } catch (e: Exception) {
+            Log.w(TAG, "FCM token registration failed: ${e.javaClass.simpleName} — ${e.message}")
+            Result.failure(e)
+        }
+    }
+
+    suspend fun unregisterToken(token: String): Result<Unit> {
+        return try {
+            val body = mapOf("token" to token)
+            deviceTokenApi.unregisterToken(body)
+            Log.d(TAG, "FCM token unregistered: ${token.take(10)}…")
+            Result.success(Unit)
+        } catch (e: Exception) {
+            Log.w(TAG, "FCM token unregistration failed: ${e.javaClass.simpleName} — ${e.message}")
+            Result.failure(e)
+        }
+    }
+}
--- a/app/src/main/java/pl/firmatpp/itstransport/data/repository/SchedulerRepository.kt
+++ b/app/src/main/java/pl/firmatpp/itstransport/data/repository/SchedulerRepository.kt
@@ -0,0 +1,86 @@
+package pl.firmatpp.itstransport.data.repository
+
+import android.util.Log
+import com.google.gson.Gson
+import pl.firmatpp.itstransport.data.api.SchedulerApi
+import pl.firmatpp.itstransport.data.auth.ApiException
+import pl.firmatpp.itstransport.data.model.ApiError
+import pl.firmatpp.itstransport.data.model.RouteDisplayItem
+import retrofit2.HttpException
+import java.time.LocalDate
+import javax.inject.Inject
+import javax.inject.Singleton
+
+/**
+ * Repository that fetches today's scheduler events and driver resources,
+ * joins them by resourceId, and returns a list of display-ready route items.
+ *
+ * External rentals (isExternalRental == true) use extendedProps.externalDriverName
+ * instead of looking up the driver resource.
+ */
+@Singleton
+class SchedulerRepository @Inject constructor(
+    private val schedulerApi: SchedulerApi,
+) {
+    companion object {
+        private const val TAG = "SchedulerRepository"
+    }
+
+    suspend fun getTodayRoutes(): Result<List<RouteDisplayItem>> {
+        val today = LocalDate.now().toString()
+        Log.d(TAG, "Fetching today's routes for date: $today")
+
+        return try {
+            val events = schedulerApi.getEvents(start = today, end = today)
+            Log.d(TAG, "Fetched ${events.size} events")
+
+            val resources = schedulerApi.getResources()
+            Log.d(TAG, "Fetched ${resources.size} driver resources")
+
+            val driverMap = resources.associateBy { it.id }
+
+            val routes = events.map { event ->
+                val driverName = if (event.extendedProps.isExternalRental) {
+                    event.extendedProps.externalDriverName ?: "Wynajem zewnętrzny"
+                } else {
+                    driverMap[event.resourceId]?.title ?: "Nieznany kierowca"
+                }
+
+                RouteDisplayItem(
+                    id = event.id,
+                    driverName = driverName,
+                    transportCode = event.extendedProps.transportCode,
+                    contractorRoute = event.extendedProps.contractorRoute,
+                    truckPlate = event.extendedProps.truckPlate,
+                    trailerPlate = event.extendedProps.trailerPlate,
+                    weight = event.extendedProps.weight,
+                    status = event.extendedProps.status,
+                    color = event.color,
+                )
+            }
+
+            Log.d(TAG, "Mapped ${routes.size} route display items")
+            Result.success(routes)
+        } catch (e: HttpException) {
+            val apiError = parseApiError(e)
+            Log.w(TAG, "API call failed with HTTP ${e.code()}: ${apiError?.message ?: e.message()}")
+            Result.failure(ApiException(e.code(), apiError, e))
+        } catch (e: Exception) {
+            Log.w(TAG, "API call failed: ${e.javaClass.simpleName} — ${e.message}")
+            Result.failure(e)
+        }
+    }
+
+    private fun parseApiError(e: HttpException): ApiError? {
+        return try {
+            val errorBody = e.response()?.errorBody()?.string()
+            if (errorBody != null) {
+                Gson().fromJson(errorBody, ApiError::class.java)?.copy(status = e.code())
+            } else {
+                null
+            }
+        } catch (_: Exception) {
+            null
+        }
+    }
+}
--- a/app/src/main/java/pl/firmatpp/itstransport/data/repository/ServiceRepository.kt
+++ b/app/src/main/java/pl/firmatpp/itstransport/data/repository/ServiceRepository.kt
@@ -0,0 +1,66 @@
+package pl.firmatpp.itstransport.data.repository
+
+import android.util.Log
+import com.google.gson.Gson
+import pl.firmatpp.itstransport.data.api.ServiceApi
+import pl.firmatpp.itstransport.data.auth.ApiException
+import pl.firmatpp.itstransport.data.model.ApiError
+import pl.firmatpp.itstransport.data.model.ServiceEventFilters
+import pl.firmatpp.itstransport.data.model.ServiceEventsResponse
+import retrofit2.HttpException
+import javax.inject.Inject
+import javax.inject.Singleton
+
+/**
+ * Repository that fetches paginated service events with optional filters.
+ * Wraps results in Result<T> and preserves HTTP error details via ApiException.
+ */
+@Singleton
+class ServiceRepository @Inject constructor(
+    private val serviceApi: ServiceApi,
+) {
+    companion object {
+        private const val TAG = "ServiceRepository"
+    }
+
+    suspend fun getEvents(
+        filters: ServiceEventFilters,
+        page: Int = 1,
+        perPage: Int = 20,
+    ): Result<ServiceEventsResponse> {
+        Log.d(TAG, "Fetching service events page=$page, perPage=$perPage, search='${filters.search}', source=${filters.source}, dateFrom=${filters.dateFrom}, dateTo=${filters.dateTo}")
+
+        return try {
+            val response = serviceApi.getEvents(
+                page = page,
+                perPage = perPage,
+                search = filters.search.ifBlank { null },
+                source = filters.source,
+                dateFrom = filters.dateFrom,
+                dateTo = filters.dateTo,
+            )
+            Log.d(TAG, "Fetched ${response.data.size} service events (page ${response.meta.currentPage}/${response.meta.lastPage}, total ${response.meta.total})")
+            Result.success(response)
+        } catch (e: HttpException) {
+            val apiError = parseApiError(e)
+            Log.w(TAG, "API call failed with HTTP ${e.code()}: ${apiError?.message ?: e.message()}")
+            Result.failure(ApiException(e.code(), apiError, e))
+        } catch (e: Exception) {
+            Log.w(TAG, "API call failed: ${e.javaClass.simpleName} — ${e.message}")
+            Result.failure(e)
+        }
+    }
+
+    private fun parseApiError(e: HttpException): ApiError? {
+        return try {
+            val errorBody = e.response()?.errorBody()?.string()
+            if (errorBody != null) {
+                Gson().fromJson(errorBody, ApiError::class.java)?.copy(status = e.code())
+            } else {
+                null
+            }
+        } catch (_: Exception) {
+            null
+        }
+    }
+}
--- a/app/src/main/java/pl/firmatpp/itstransport/data/repository/ServiceWizardRepository.kt
+++ b/app/src/main/java/pl/firmatpp/itstransport/data/repository/ServiceWizardRepository.kt
@@ -0,0 +1,106 @@
+package pl.firmatpp.itstransport.data.repository
+
+import android.util.Log
+import com.google.gson.Gson
+import pl.firmatpp.itstransport.data.api.ServiceWizardApi
+import pl.firmatpp.itstransport.data.auth.ApiException
+import pl.firmatpp.itstransport.data.model.ApiError
+import pl.firmatpp.itstransport.data.model.CreateServiceEventRequest
+import pl.firmatpp.itstransport.data.model.ServiceEvent
+import pl.firmatpp.itstransport.data.model.ServiceType
+import pl.firmatpp.itstransport.data.model.Trailer
+import pl.firmatpp.itstransport.data.model.Truck
+import retrofit2.HttpException
+import javax.inject.Inject
+import javax.inject.Singleton
+
+/**
+ * Repository for the service wizard flow.
+ * Fetches trucks, trailers, service types, and submits new service events.
+ * All methods return Result<T> with ApiException preserving HTTP code + parsed body.
+ */
+@Singleton
+class ServiceWizardRepository @Inject constructor(
+    private val serviceWizardApi: ServiceWizardApi,
+) {
+    companion object {
+        private const val TAG = "ServiceWizardRepo"
+    }
+
+    suspend fun getTrucks(): Result<List<Truck>> {
+        Log.d(TAG, "Fetching all trucks")
+        return try {
+            val trucks = serviceWizardApi.getTrucks()
+            Log.d(TAG, "Fetched ${trucks.size} trucks")
+            Result.success(trucks)
+        } catch (e: HttpException) {
+            val apiError = parseApiError(e)
+            Log.w(TAG, "Fetch trucks failed with HTTP ${e.code()}: ${apiError?.message ?: e.message()}")
+            Result.failure(ApiException(e.code(), apiError, e))
+        } catch (e: Exception) {
+            Log.w(TAG, "Fetch trucks failed: ${e.javaClass.simpleName} — ${e.message}")
+            Result.failure(e)
+        }
+    }
+
+    suspend fun getTrailers(): Result<List<Trailer>> {
+        Log.d(TAG, "Fetching all trailers")
+        return try {
+            val trailers = serviceWizardApi.getTrailers()
+            Log.d(TAG, "Fetched ${trailers.size} trailers")
+            Result.success(trailers)
+        } catch (e: HttpException) {
+            val apiError = parseApiError(e)
+            Log.w(TAG, "Fetch trailers failed with HTTP ${e.code()}: ${apiError?.message ?: e.message()}")
+            Result.failure(ApiException(e.code(), apiError, e))
+        } catch (e: Exception) {
+            Log.w(TAG, "Fetch trailers failed: ${e.javaClass.simpleName} — ${e.message}")
+            Result.failure(e)
+        }
+    }
+
+    suspend fun getServiceTypes(): Result<List<ServiceType>> {
+        Log.d(TAG, "Fetching service types")
+        return try {
+            val response = serviceWizardApi.getServiceTypes()
+            Log.d(TAG, "Fetched ${response.data.size} service types")
+            Result.success(response.data)
+        } catch (e: HttpException) {
+            val apiError = parseApiError(e)
+            Log.w(TAG, "Fetch service types failed with HTTP ${e.code()}: ${apiError?.message ?: e.message()}")
+            Result.failure(ApiException(e.code(), apiError, e))
+        } catch (e: Exception) {
+            Log.w(TAG, "Fetch service types failed: ${e.javaClass.simpleName} — ${e.message}")
+            Result.failure(e)
+        }
+    }
+
+    suspend fun submitServiceEvent(request: CreateServiceEventRequest): Result<ServiceEvent> {
+        Log.d(TAG, "Submitting service event: costableType=${request.costableType}, costableId=${request.costableId}, items=${request.items.size}")
+        return try {
+            val response = serviceWizardApi.createServiceEvent(request)
+            Log.d(TAG, "Service event created: id=${response.data.id}")
+            Result.success(response.data)
+        } catch (e: HttpException) {
+            val apiError = parseApiError(e)
+            Log.w(TAG, "Submit service event failed with HTTP ${e.code()}: ${apiError?.message ?: e.message()}")
+            Result.failure(ApiException(e.code(), apiError, e))
+        } catch (e: Exception) {
+            Log.w(TAG, "Submit service event failed: ${e.javaClass.simpleName} — ${e.message}")
+            Result.failure(e)
+        }
+    }
+
+    private fun parseApiError(e: HttpException): ApiError? {
+        return try {
+            val errorBody = e.response()?.errorBody()?.string()
+            if (errorBody != null) {
+                Gson().fromJson(errorBody, ApiError::class.java)?.copy(status = e.code())
+            } else {
+                null
+            }
+        } catch (_: Exception) {
+            null
+        }
+    }
+}
--- a/app/src/main/java/pl/firmatpp/itstransport/di/NetworkModule.kt
+++ b/app/src/main/java/pl/firmatpp/itstransport/di/NetworkModule.kt
@@ -0,0 +1,93 @@
+package pl.firmatpp.itstransport.di
+
+import dagger.Module
+import dagger.Provides
+import dagger.hilt.InstallIn
+import dagger.hilt.components.SingletonComponent
+import okhttp3.OkHttpClient
+import okhttp3.logging.HttpLoggingInterceptor
+import pl.firmatpp.itstransport.BuildConfig
+import pl.firmatpp.itstransport.data.api.AuthApi
+import pl.firmatpp.itstransport.data.api.AuthInterceptor
+import pl.firmatpp.itstransport.data.api.DeviceTokenApi
+import pl.firmatpp.itstransport.data.api.SchedulerApi
+import pl.firmatpp.itstransport.data.api.ServiceApi
+import pl.firmatpp.itstransport.data.api.ServiceWizardApi
+import retrofit2.Retrofit
+import retrofit2.converter.gson.GsonConverterFactory
+import java.util.concurrent.TimeUnit
+import javax.inject.Singleton
+
+@Module
+@InstallIn(SingletonComponent::class)
+object NetworkModule {
+
+    @Provides
+    @Singleton
+    fun provideLoggingInterceptor(): HttpLoggingInterceptor {
+        return HttpLoggingInterceptor().apply {
+            level = if (BuildConfig.DEBUG) {
+                HttpLoggingInterceptor.Level.BODY
+            } else {
+                HttpLoggingInterceptor.Level.NONE
+            }
+            // Redact Authorization header to prevent token leakage in logs
+            redactHeader("Authorization")
+        }
+    }
+
+    @Provides
+    @Singleton
+    fun provideOkHttpClient(
+        authInterceptor: AuthInterceptor,
+        loggingInterceptor: HttpLoggingInterceptor,
+    ): OkHttpClient {
+        return OkHttpClient.Builder()
+            .addInterceptor(authInterceptor)
+            .addInterceptor(loggingInterceptor)
+            .connectTimeout(30, TimeUnit.SECONDS)
+            .readTimeout(30, TimeUnit.SECONDS)
+            .writeTimeout(30, TimeUnit.SECONDS)
+            .build()
+    }
+
+    @Provides
+    @Singleton
+    fun provideRetrofit(okHttpClient: OkHttpClient): Retrofit {
+        return Retrofit.Builder()
+            .baseUrl(BuildConfig.API_BASE_URL + "/")
+            .client(okHttpClient)
+            .addConverterFactory(GsonConverterFactory.create())
+            .build()
+    }
+
+    @Provides
+    @Singleton
+    fun provideAuthApi(retrofit: Retrofit): AuthApi {
+        return retrofit.create(AuthApi::class.java)
+    }
+
+    @Provides
+    @Singleton
+    fun provideSchedulerApi(retrofit: Retrofit): SchedulerApi {
+        return retrofit.create(SchedulerApi::class.java)
+    }
+
+    @Provides
+    @Singleton
+    fun provideServiceApi(retrofit: Retrofit): ServiceApi {
+        return retrofit.create(ServiceApi::class.java)
+    }
+
+    @Provides
+    @Singleton
+    fun provideServiceWizardApi(retrofit: Retrofit): ServiceWizardApi {
+        return retrofit.create(ServiceWizardApi::class.java)
+    }
+
+    @Provides
+    @Singleton
+    fun provideDeviceTokenApi(retrofit: Retrofit): DeviceTokenApi {
+        return retrofit.create(DeviceTokenApi::class.java)
+    }
+}
--- a/app/src/main/java/pl/firmatpp/itstransport/ui/MainScreen.kt
+++ b/app/src/main/java/pl/firmatpp/itstransport/ui/MainScreen.kt
@@ -0,0 +1,128 @@
+package pl.firmatpp.itstransport.ui
+
+import android.Manifest
+import android.os.Build
+import androidx.activity.compose.rememberLauncherForActivityResult
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.automirrored.filled.ExitToApp
+import androidx.compose.material.icons.filled.Add
+import androidx.compose.material3.CenterAlignedTopAppBar
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.FloatingActionButton
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.NavigationBar
+import androidx.compose.material3.NavigationBarItem
+import androidx.compose.material3.Scaffold
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.saveable.rememberSaveable
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.unit.dp
+import pl.firmatpp.itstransport.ui.home.HomeScreen
+import pl.firmatpp.itstransport.ui.navigation.BottomTab
+import pl.firmatpp.itstransport.ui.service.ServiceHistoryScreen
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun MainScreen(
+    onLogout: () -> Unit,
+    onNavigateToAddService: () -> Unit,
+    shouldRefreshService: Boolean = false,
+    onServiceRefreshed: () -> Unit = {},
+) {
+    var selectedTab by rememberSaveable { mutableStateOf(BottomTab.Trasy.route) }
+
+    // When a service was just added, switch to Serwis tab automatically
+    LaunchedEffect(shouldRefreshService) {
+        if (shouldRefreshService) {
+            selectedTab = BottomTab.Serwis.route
+        }
+    }
+
+    // Request POST_NOTIFICATIONS permission on Android 13+ (API 33)
+    val permissionLauncher = rememberLauncherForActivityResult(
+        contract = ActivityResultContracts.RequestPermission(),
+        onResult = { /* Permission granted or denied — FCMService handles missing permission gracefully */ },
+    )
+    LaunchedEffect(Unit) {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+            permissionLauncher.launch(Manifest.permission.POST_NOTIFICATIONS)
+        }
+    }
+
+    Scaffold(
+        topBar = {
+            CenterAlignedTopAppBar(
+                title = {
+                    Text(
+                        text = "ITS Transport",
+                        style = MaterialTheme.typography.titleLarge,
+                    )
+                },
+                actions = {
+                    IconButton(onClick = onLogout) {
+                        Icon(
+                            imageVector = Icons.AutoMirrored.Filled.ExitToApp,
+                            contentDescription = "Wyloguj",
+                        )
+                    }
+                },
+            )
+        },
+        floatingActionButton = {
+            if (selectedTab == BottomTab.Serwis.route) {
+                FloatingActionButton(onClick = onNavigateToAddService) {
+                    Icon(
+                        imageVector = Icons.Filled.Add,
+                        contentDescription = "Dodaj serwis",
+                    )
+                }
+            }
+        },
+        bottomBar = {
+            NavigationBar {
+                BottomTab.entries.forEach { tab ->
+                    NavigationBarItem(
+                        selected = selectedTab == tab.route,
+                        onClick = { selectedTab = tab.route },
+                        icon = {
+                            Icon(
+                                imageVector = tab.icon,
+                                contentDescription = tab.label,
+                            )
+                        },
+                        label = { Text(tab.label) },
+                    )
+                }
+            }
+        },
+    ) { innerPadding ->
+        when (selectedTab) {
+            BottomTab.Trasy.route -> {
+                HomeScreen(modifier = Modifier.padding(innerPadding))
+            }
+            BottomTab.Serwis.route -> {
+                ServiceHistoryScreen(
+                    modifier = Modifier.padding(innerPadding),
+                    shouldRefresh = shouldRefreshService,
+                    onRefreshConsumed = onServiceRefreshed,
+                )
+            }
+            else -> {
+                ServiceHistoryScreen(
+                    modifier = Modifier.padding(innerPadding),
+                    shouldRefresh = shouldRefreshService,
+                    onRefreshConsumed = onServiceRefreshed,
+                )
+            }
+        }
+    }
+}
--- a/app/src/main/java/pl/firmatpp/itstransport/ui/auth/LoginScreen.kt
+++ b/app/src/main/java/pl/firmatpp/itstransport/ui/auth/LoginScreen.kt
@@ -0,0 +1,216 @@
+package pl.firmatpp.itstransport.ui.auth
+
+import androidx.compose.animation.AnimatedVisibility
+import androidx.compose.animation.fadeIn
+import androidx.compose.animation.fadeOut
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.imePadding
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.text.KeyboardActions
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material3.Button
+import androidx.compose.material3.CircularProgressIndicator
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.OutlinedTextField
+import androidx.compose.material3.Scaffold
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.saveable.rememberSaveable
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.focus.FocusDirection
+import androidx.compose.ui.platform.LocalFocusManager
+import androidx.compose.ui.text.input.ImeAction
+import androidx.compose.ui.text.input.KeyboardType
+import androidx.compose.ui.text.input.PasswordVisualTransformation
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.unit.dp
+import androidx.hilt.navigation.compose.hiltViewModel
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+
+@Composable
+fun LoginScreen(
+    onLoginSuccess: () -> Unit,
+    viewModel: LoginViewModel = hiltViewModel(),
+) {
+    val uiState by viewModel.uiState.collectAsStateWithLifecycle()
+
+    var email by rememberSaveable { mutableStateOf("") }
+    var password by rememberSaveable { mutableStateOf("") }
+    var emailError by rememberSaveable { mutableStateOf<String?>(null) }
+    var passwordError by rememberSaveable { mutableStateOf<String?>(null) }
+
+    val isLoading = uiState is LoginUiState.Loading
+    val focusManager = LocalFocusManager.current
+
+    // Navigate on success
+    LaunchedEffect(uiState) {
+        if (uiState is LoginUiState.Success) {
+            onLoginSuccess()
+        }
+    }
+
+    Scaffold { innerPadding ->
+        Column(
+            modifier = Modifier
+                .fillMaxSize()
+                .padding(innerPadding)
+                .imePadding()
+                .verticalScroll(rememberScrollState())
+                .padding(horizontal = 32.dp),
+            horizontalAlignment = Alignment.CenterHorizontally,
+            verticalArrangement = Arrangement.Center,
+        ) {
+            Spacer(modifier = Modifier.weight(1f))
+
+            // App title
+            Text(
+                text = "ITS Transport",
+                style = MaterialTheme.typography.headlineLarge,
+                color = MaterialTheme.colorScheme.primary,
+            )
+
+            Spacer(modifier = Modifier.height(8.dp))
+
+            // Subtitle
+            Text(
+                text = "System zarządzania flotą",
+                style = MaterialTheme.typography.bodyLarge,
+                color = MaterialTheme.colorScheme.onSurfaceVariant,
+            )
+
+            Spacer(modifier = Modifier.height(48.dp))
+
+            // Email field
+            OutlinedTextField(
+                value = email,
+                onValueChange = {
+                    email = it
+                    emailError = null
+                    viewModel.clearError()
+                },
+                label = { Text("Email") },
+                singleLine = true,
+                isError = emailError != null,
+                supportingText = emailError?.let { error -> { Text(error) } },
+                keyboardOptions = KeyboardOptions(
+                    keyboardType = KeyboardType.Email,
+                    imeAction = ImeAction.Next,
+                ),
+                keyboardActions = KeyboardActions(
+                    onNext = { focusManager.moveFocus(FocusDirection.Down) },
+                ),
+                enabled = !isLoading,
+                modifier = Modifier.fillMaxWidth(),
+            )
+
+            Spacer(modifier = Modifier.height(12.dp))
+
+            // Password field
+            OutlinedTextField(
+                value = password,
+                onValueChange = {
+                    password = it
+                    passwordError = null
+                    viewModel.clearError()
+                },
+                label = { Text("Hasło") },
+                singleLine = true,
+                isError = passwordError != null,
+                supportingText = passwordError?.let { error -> { Text(error) } },
+                visualTransformation = PasswordVisualTransformation(),
+                keyboardOptions = KeyboardOptions(
+                    keyboardType = KeyboardType.Password,
+                    imeAction = ImeAction.Done,
+                ),
+                keyboardActions = KeyboardActions(
+                    onDone = {
+                        focusManager.clearFocus()
+                        submitLogin(email, password, viewModel, { emailError = it }, { passwordError = it })
+                    },
+                ),
+                enabled = !isLoading,
+                modifier = Modifier.fillMaxWidth(),
+            )
+
+            Spacer(modifier = Modifier.height(24.dp))
+
+            // Login button
+            Button(
+                onClick = {
+                    focusManager.clearFocus()
+                    submitLogin(email, password, viewModel, { emailError = it }, { passwordError = it })
+                },
+                enabled = !isLoading,
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .height(50.dp),
+            ) {
+                if (isLoading) {
+                    CircularProgressIndicator(
+                        modifier = Modifier.size(24.dp),
+                        color = MaterialTheme.colorScheme.onPrimary,
+                        strokeWidth = 2.dp,
+                    )
+                } else {
+                    Text("Zaloguj się")
+                }
+            }
+
+            // Error message
+            AnimatedVisibility(
+                visible = uiState is LoginUiState.Error,
+                enter = fadeIn(),
+                exit = fadeOut(),
+            ) {
+                val errorMessage = (uiState as? LoginUiState.Error)?.message ?: ""
+                Text(
+                    text = errorMessage,
+                    color = MaterialTheme.colorScheme.error,
+                    style = MaterialTheme.typography.bodyMedium,
+                    textAlign = TextAlign.Center,
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .padding(top = 16.dp),
+                )
+            }
+
+            Spacer(modifier = Modifier.weight(1f))
+        }
+    }
+}
+
+private fun submitLogin(
+    email: String,
+    password: String,
+    viewModel: LoginViewModel,
+    setEmailError: (String?) -> Unit,
+    setPasswordError: (String?) -> Unit,
+) {
+    var hasError = false
+
+    if (email.isBlank()) {
+        setEmailError("Wprowadź email")
+        hasError = true
+    }
+    if (password.isBlank()) {
+        setPasswordError("Wprowadź hasło")
+        hasError = true
+    }
+
+    if (!hasError) {
+        viewModel.login(email.trim(), password)
+    }
+}
--- a/app/src/main/java/pl/firmatpp/itstransport/ui/auth/LoginViewModel.kt
+++ b/app/src/main/java/pl/firmatpp/itstransport/ui/auth/LoginViewModel.kt
@@ -0,0 +1,100 @@
+package pl.firmatpp.itstransport.ui.auth
+
+import android.util.Log
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.launch
+import pl.firmatpp.itstransport.data.auth.ApiException
+import pl.firmatpp.itstransport.data.auth.AuthRepository
+import pl.firmatpp.itstransport.data.model.UserResponse
+import java.io.IOException
+import java.net.UnknownHostException
+import javax.inject.Inject
+
+sealed class LoginUiState {
+    data object Idle : LoginUiState()
+    data object Loading : LoginUiState()
+    data class Success(val user: UserResponse) : LoginUiState()
+    data class Error(val message: String) : LoginUiState()
+}
+
+@HiltViewModel
+class LoginViewModel @Inject constructor(
+    private val authRepository: AuthRepository,
+) : ViewModel() {
+
+    companion object {
+        private const val TAG = "LoginViewModel"
+    }
+
+    private val _uiState = MutableStateFlow<LoginUiState>(LoginUiState.Idle)
+    val uiState: StateFlow<LoginUiState> = _uiState.asStateFlow()
+
+    fun login(email: String, password: String) {
+        if (_uiState.value is LoginUiState.Loading) return
+
+        // Field validation
+        if (email.isBlank() || password.isBlank()) {
+            Log.d(TAG, "Login attempted with empty fields")
+            _uiState.value = LoginUiState.Error("Wprowadź email i hasło")
+            return
+        }
+
+        _uiState.value = LoginUiState.Loading
+        Log.d(TAG, "Login attempt for email: ${email.take(3)}***")
+
+        viewModelScope.launch {
+            val result = authRepository.login(email, password)
+            result.fold(
+                onSuccess = { user ->
+                    Log.d(TAG, "Login successful for user: ${user.name}")
+                    _uiState.value = LoginUiState.Success(user)
+                },
+                onFailure = { exception ->
+                    val message = mapErrorToPolishMessage(exception)
+                    Log.w(TAG, "Login failed: ${exception.javaClass.simpleName} → \"$message\"")
+                    _uiState.value = LoginUiState.Error(message)
+                },
+            )
+        }
+    }
+
+    fun clearError() {
+        if (_uiState.value is LoginUiState.Error) {
+            _uiState.value = LoginUiState.Idle
+        }
+    }
+
+    private fun mapErrorToPolishMessage(exception: Throwable): String {
+        return when {
+            // Network connectivity issues
+            exception is IOException || exception is UnknownHostException ->
+                "Brak połączenia z serwerem. Sprawdź internet i spróbuj ponownie."
+
+            // HTTP errors wrapped by AuthRepository
+            exception is ApiException -> {
+                when {
+                    // 422 Validation / 401 Unauthorized — invalid credentials
+                    exception.code == 422 || exception.code == 401 ->
+                        "Nieprawidłowy email lub hasło"
+                    // Server errors
+                    exception.code in 500..599 ->
+                        "Błąd serwera. Spróbuj ponownie za chwilę."
+                    else ->
+                        "Wystąpił nieoczekiwany błąd. Spróbuj ponownie."
+                }
+            }
+
+            // Network errors wrapped inside other exception types
+            exception.cause is IOException || exception.cause is UnknownHostException ->
+                "Brak połączenia z serwerem. Sprawdź internet i spróbuj ponownie."
+
+            // Fallback
+            else -> "Wystąpił nieoczekiwany błąd. Spróbuj ponownie."
+        }
+    }
+}
--- a/app/src/main/java/pl/firmatpp/itstransport/ui/home/HomeScreen.kt
+++ b/app/src/main/java/pl/firmatpp/itstransport/ui/home/HomeScreen.kt
@@ -0,0 +1,164 @@
+package pl.firmatpp.itstransport.ui.home
+
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.PaddingValues
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.items
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.DirectionsBus
+import androidx.compose.material.icons.filled.ErrorOutline
+import androidx.compose.material3.Button
+import androidx.compose.material3.CircularProgressIndicator
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.Icon
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.material3.pulltorefresh.PullToRefreshBox
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.unit.dp
+import androidx.hilt.navigation.compose.hiltViewModel
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun HomeScreen(
+    modifier: Modifier = Modifier,
+    viewModel: HomeViewModel = hiltViewModel(),
+) {
+    val uiState by viewModel.uiState.collectAsStateWithLifecycle()
+    val isRefreshing by viewModel.isRefreshing.collectAsStateWithLifecycle()
+
+    PullToRefreshBox(
+        isRefreshing = isRefreshing,
+        onRefresh = { viewModel.refresh() },
+        modifier = modifier.fillMaxSize(),
+    ) {
+        when (val state = uiState) {
+            is HomeUiState.Idle,
+            is HomeUiState.Loading -> {
+                LoadingContent()
+            }
+
+            is HomeUiState.Success -> {
+                RouteList(routes = state.routes)
+            }
+
+            is HomeUiState.Error -> {
+                ErrorContent(
+                    message = state.message,
+                    onRetry = { viewModel.refresh() },
+                )
+            }
+
+            is HomeUiState.Empty -> {
+                EmptyContent()
+            }
+        }
+    }
+}
+
+@Composable
+private fun LoadingContent() {
+    Box(
+        modifier = Modifier.fillMaxSize(),
+        contentAlignment = Alignment.Center,
+    ) {
+        CircularProgressIndicator()
+    }
+}
+
+@Composable
+private fun RouteList(routes: List<pl.firmatpp.itstransport.data.model.RouteDisplayItem>) {
+    LazyColumn(
+        contentPadding = PaddingValues(horizontal = 16.dp, vertical = 12.dp),
+        verticalArrangement = Arrangement.spacedBy(12.dp),
+    ) {
+        items(
+            items = routes,
+            key = { it.id },
+        ) { route ->
+            RouteCard(route = route)
+        }
+    }
+}
+
+@Composable
+private fun ErrorContent(
+    message: String,
+    onRetry: () -> Unit,
+) {
+    Column(
+        modifier = Modifier
+            .fillMaxSize()
+            .padding(32.dp),
+        horizontalAlignment = Alignment.CenterHorizontally,
+        verticalArrangement = Arrangement.Center,
+    ) {
+        Icon(
+            imageVector = Icons.Filled.ErrorOutline,
+            contentDescription = null,
+            modifier = Modifier.size(64.dp),
+            tint = MaterialTheme.colorScheme.error,
+        )
+
+        Spacer(modifier = Modifier.height(16.dp))
+
+        Text(
+            text = "Błąd",
+            style = MaterialTheme.typography.headlineSmall,
+            color = MaterialTheme.colorScheme.error,
+        )
+
+        Spacer(modifier = Modifier.height(8.dp))
+
+        Text(
+            text = message,
+            style = MaterialTheme.typography.bodyMedium,
+            color = MaterialTheme.colorScheme.onSurfaceVariant,
+            textAlign = TextAlign.Center,
+        )
+
+        Spacer(modifier = Modifier.height(24.dp))
+
+        Button(onClick = onRetry) {
+            Text("Spróbuj ponownie")
+        }
+    }
+}
+
+@Composable
+private fun EmptyContent() {
+    Column(
+        modifier = Modifier
+            .fillMaxSize()
+            .padding(32.dp),
+        horizontalAlignment = Alignment.CenterHorizontally,
+        verticalArrangement = Arrangement.Center,
+    ) {
+        Icon(
+            imageVector = Icons.Filled.DirectionsBus,
+            contentDescription = null,
+            modifier = Modifier.size(64.dp),
+            tint = MaterialTheme.colorScheme.onSurfaceVariant,
+        )
+
+        Spacer(modifier = Modifier.height(16.dp))
+
+        Text(
+            text = "Brak tras na dziś",
+            style = MaterialTheme.typography.headlineSmall,
+            color = MaterialTheme.colorScheme.onSurfaceVariant,
+        )
+    }
+}
--- a/app/src/main/java/pl/firmatpp/itstransport/ui/home/HomeViewModel.kt
+++ b/app/src/main/java/pl/firmatpp/itstransport/ui/home/HomeViewModel.kt
@@ -0,0 +1,107 @@
+package pl.firmatpp.itstransport.ui.home
+
+import android.util.Log
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.launch
+import pl.firmatpp.itstransport.data.auth.ApiException
+import pl.firmatpp.itstransport.data.model.RouteDisplayItem
+import pl.firmatpp.itstransport.data.repository.SchedulerRepository
+import java.io.IOException
+import java.net.UnknownHostException
+import javax.inject.Inject
+
+sealed class HomeUiState {
+    data object Idle : HomeUiState()
+    data object Loading : HomeUiState()
+    data class Success(val routes: List<RouteDisplayItem>) : HomeUiState()
+    data class Error(val message: String) : HomeUiState()
+    data object Empty : HomeUiState()
+}
+
+@HiltViewModel
+class HomeViewModel @Inject constructor(
+    private val schedulerRepository: SchedulerRepository,
+) : ViewModel() {
+
+    companion object {
+        private const val TAG = "HomeViewModel"
+    }
+
+    private val _uiState = MutableStateFlow<HomeUiState>(HomeUiState.Idle)
+    val uiState: StateFlow<HomeUiState> = _uiState.asStateFlow()
+
+    private val _isRefreshing = MutableStateFlow(false)
+    val isRefreshing: StateFlow<Boolean> = _isRefreshing.asStateFlow()
+
+    init {
+        loadRoutes()
+    }
+
+    fun refresh() {
+        Log.d(TAG, "Pull-to-refresh triggered")
+        _isRefreshing.value = true
+        loadRoutes()
+    }
+
+    private fun loadRoutes() {
+        if (_uiState.value is HomeUiState.Loading && !_isRefreshing.value) return
+
+        _uiState.value = HomeUiState.Loading
+        Log.d(TAG, "Loading today's routes")
+
+        viewModelScope.launch {
+            val result = schedulerRepository.getTodayRoutes()
+            result.fold(
+                onSuccess = { routes ->
+                    if (routes.isEmpty()) {
+                        Log.d(TAG, "No routes for today")
+                        _uiState.value = HomeUiState.Empty
+                    } else {
+                        Log.d(TAG, "Loaded ${routes.size} routes")
+                        _uiState.value = HomeUiState.Success(routes)
+                    }
+                },
+                onFailure = { exception ->
+                    val message = mapErrorToPolishMessage(exception)
+                    Log.w(TAG, "Load failed: ${exception.javaClass.simpleName} → \"$message\"")
+                    _uiState.value = HomeUiState.Error(message)
+                },
+            )
+            _isRefreshing.value = false
+        }
+    }
+
+    private fun mapErrorToPolishMessage(exception: Throwable): String {
+        return when {
+            // Network connectivity issues
+            exception is IOException || exception is UnknownHostException ->
+                "Brak połączenia z serwerem. Sprawdź internet i spróbuj ponownie."
+
+            // HTTP errors wrapped by SchedulerRepository
+            exception is ApiException -> {
+                when {
+                    exception.code == 401 ->
+                        "Sesja wygasła. Zaloguj się ponownie."
+                    exception.code == 403 ->
+                        "Brak uprawnień do wyświetlenia tras."
+                    exception.code in 500..599 ->
+                        "Błąd serwera. Spróbuj ponownie za chwilę."
+                    else ->
+                        "Wystąpił nieoczekiwany błąd. Spróbuj ponownie."
+                }
+            }
+
+            // Network errors wrapped inside other exception types
+            exception.cause is IOException || exception.cause is UnknownHostException ->
+                "Brak połączenia z serwerem. Sprawdź internet i spróbuj ponownie."
+
+            // Fallback
+            else -> "Wystąpił nieoczekiwany błąd. Spróbuj ponownie."
+        }
+    }
+}
--- a/app/src/main/java/pl/firmatpp/itstransport/ui/home/RouteCard.kt
+++ b/app/src/main/java/pl/firmatpp/itstransport/ui/home/RouteCard.kt
@@ -0,0 +1,172 @@
+package pl.firmatpp.itstransport.ui.home
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.IntrinsicSize
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxHeight
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material3.ElevatedCard
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.dp
+import pl.firmatpp.itstransport.data.model.RouteDisplayItem
+
+@Composable
+fun RouteCard(
+    route: RouteDisplayItem,
+    modifier: Modifier = Modifier,
+) {
+    ElevatedCard(
+        modifier = modifier.fillMaxWidth(),
+    ) {
+        Row(
+            modifier = Modifier
+                .fillMaxWidth()
+                .height(IntrinsicSize.Min),
+        ) {
+            // Color indicator strip
+            Box(
+                modifier = Modifier
+                    .width(6.dp)
+                    .fillMaxHeight()
+                    .clip(RoundedCornerShape(topStart = 12.dp, bottomStart = 12.dp))
+                    .background(parseColor(route.color)),
+            )
+
+            // Card content
+            Column(
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .padding(12.dp),
+            ) {
+                // Top row: transport code + status badge
+                Row(
+                    modifier = Modifier.fillMaxWidth(),
+                    horizontalArrangement = Arrangement.SpaceBetween,
+                    verticalAlignment = Alignment.CenterVertically,
+                ) {
+                    Text(
+                        text = route.transportCode,
+                        style = MaterialTheme.typography.titleMedium,
+                        fontWeight = FontWeight.Bold,
+                        color = MaterialTheme.colorScheme.primary,
+                    )
+                    if (route.status != null) {
+                        StatusBadge(status = route.status)
+                    }
+                }
+
+                Spacer(modifier = Modifier.height(4.dp))
+
+                // Driver name
+                Text(
+                    text = route.driverName,
+                    style = MaterialTheme.typography.bodyLarge,
+                    fontWeight = FontWeight.Medium,
+                )
+
+                Spacer(modifier = Modifier.height(2.dp))
+
+                // Contractor route (description)
+                Text(
+                    text = route.contractorRoute,
+                    style = MaterialTheme.typography.bodyMedium,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                )
+
+                Spacer(modifier = Modifier.height(8.dp))
+
+                // Bottom row: plates and weight
+                Row(
+                    modifier = Modifier.fillMaxWidth(),
+                    horizontalArrangement = Arrangement.spacedBy(12.dp),
+                    verticalAlignment = Alignment.CenterVertically,
+                ) {
+                    LabeledValue(label = "Ciągnik", value = route.truckPlate)
+
+                    if (route.trailerPlate != null) {
+                        LabeledValue(label = "Naczepa", value = route.trailerPlate)
+                    }
+
+                    if (route.weight != null) {
+                        LabeledValue(
+                            label = "Waga",
+                            value = "${formatWeight(route.weight)} t",
+                        )
+                    }
+                }
+            }
+        }
+    }
+}
+
+@Composable
+private fun StatusBadge(status: String) {
+    Text(
+        text = status,
+        style = MaterialTheme.typography.labelSmall,
+        color = MaterialTheme.colorScheme.onTertiaryContainer,
+        modifier = Modifier
+            .background(
+                color = MaterialTheme.colorScheme.tertiaryContainer,
+                shape = RoundedCornerShape(4.dp),
+            )
+            .padding(horizontal = 8.dp, vertical = 2.dp),
+    )
+}
+
+@Composable
+private fun LabeledValue(label: String, value: String) {
+    Column {
+        Text(
+            text = label,
+            style = MaterialTheme.typography.labelSmall,
+            color = MaterialTheme.colorScheme.onSurfaceVariant,
+        )
+        Text(
+            text = value,
+            style = MaterialTheme.typography.bodySmall,
+            fontWeight = FontWeight.Medium,
+        )
+    }
+}
+
+/**
+ * Formats weight for display, dropping decimal when it's a whole number.
+ * 24.0 → "24", 24.5 → "24.5"
+ */
+private fun formatWeight(weight: Double): String {
+    return if (weight == weight.toLong().toDouble()) {
+        weight.toLong().toString()
+    } else {
+        weight.toString()
+    }
+}
+
+/**
+ * Parses a hex color string (e.g. "#3788d8") from the backend into a Compose Color.
+ * Falls back to primary-like blue on invalid input.
+ */
+private fun parseColor(hex: String?): Color {
+    if (hex.isNullOrBlank()) return Color(0xFF3788D8)
+    return try {
+        val sanitized = hex.removePrefix("#")
+        Color(("FF$sanitized").toLong(16))
+    } catch (_: Exception) {
+        Color(0xFF3788D8)
+    }
+}
--- a/app/src/main/java/pl/firmatpp/itstransport/ui/navigation/AppNavigation.kt
+++ b/app/src/main/java/pl/firmatpp/itstransport/ui/navigation/AppNavigation.kt
@@ -0,0 +1,104 @@
+package pl.firmatpp.itstransport.ui.navigation
+
+import android.util.Log
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.snapshotFlow
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import androidx.navigation.compose.NavHost
+import androidx.navigation.compose.composable
+import androidx.navigation.compose.rememberNavController
+import kotlinx.coroutines.flow.filter
+import pl.firmatpp.itstransport.data.auth.TokenManager
+import pl.firmatpp.itstransport.ui.MainScreen
+import pl.firmatpp.itstransport.ui.auth.LoginScreen
+import pl.firmatpp.itstransport.ui.service.wizard.AddServiceScreen
+
+private const val TAG = "AppNavigation"
+private const val KEY_SERVICE_ADDED = "service_added"
+
+@Composable
+fun AppNavigation(tokenManager: TokenManager) {
+    val navController = rememberNavController()
+    val isLoggedIn by tokenManager.isLoggedIn.collectAsStateWithLifecycle()
+    val startDestination = if (tokenManager.hasToken()) {
+        Log.d(TAG, "Token present — starting at main")
+        Screen.Main.route
+    } else {
+        Log.d(TAG, "No token — starting at login")
+        Screen.Login.route
+    }
+
+    // Reactive 401 redirect: when AuthInterceptor clears the token on a 401,
+    // isLoggedIn transitions to false — navigate to login, clearing the back stack.
+    LaunchedEffect(navController) {
+        snapshotFlow { isLoggedIn }
+            .filter { !it }
+            .collect {
+                val currentRoute = navController.currentDestination?.route
+                if (currentRoute != Screen.Login.route) {
+                    Log.d(TAG, "401 session expiry — redirecting to login (from $currentRoute)")
+                    navController.navigate(Screen.Login.route) {
+                        popUpTo(0) { inclusive = true }
+                    }
+                }
+            }
+    }
+
+    NavHost(
+        navController = navController,
+        startDestination = startDestination,
+    ) {
+        composable(Screen.Login.route) {
+            LoginScreen(
+                onLoginSuccess = {
+                    Log.d(TAG, "Login success — navigating to main")
+                    navController.navigate(Screen.Main.route) {
+                        popUpTo(Screen.Login.route) { inclusive = true }
+                    }
+                },
+            )
+        }
+        composable(Screen.Main.route) { mainBackStackEntry ->
+            // Observe the "service_added" result set by AddServiceScreen via savedStateHandle
+            val shouldRefresh by mainBackStackEntry.savedStateHandle
+                .getStateFlow(KEY_SERVICE_ADDED, false)
+                .collectAsStateWithLifecycle()
+
+            MainScreen(
+                onLogout = {
+                    Log.d(TAG, "Logout — clearing token and navigating to login")
+                    tokenManager.clearToken()
+                    navController.navigate(Screen.Login.route) {
+                        popUpTo(0) { inclusive = true }
+                    }
+                },
+                onNavigateToAddService = {
+                    Log.d(TAG, "Navigating to AddService wizard")
+                    navController.navigate(Screen.AddService.route)
+                },
+                shouldRefreshService = shouldRefresh,
+                onServiceRefreshed = {
+                    // Clear the flag so it doesn't re-trigger on recomposition
+                    mainBackStackEntry.savedStateHandle[KEY_SERVICE_ADDED] = false
+                },
+            )
+        }
+        composable(Screen.AddService.route) {
+            AddServiceScreen(
+                onNavigateBack = {
+                    Log.d(TAG, "AddService → navigating back")
+                    navController.popBackStack()
+                },
+                onServiceSubmitted = {
+                    Log.d(TAG, "AddService → service submitted, setting refresh flag and popping back")
+                    navController.previousBackStackEntry
+                        ?.savedStateHandle
+                        ?.set(KEY_SERVICE_ADDED, true)
+                    navController.popBackStack()
+                },
+            )
+        }
+    }
+}
--- a/app/src/main/java/pl/firmatpp/itstransport/ui/navigation/Screen.kt
+++ b/app/src/main/java/pl/firmatpp/itstransport/ui/navigation/Screen.kt
@@ -0,0 +1,38 @@
+package pl.firmatpp.itstransport.ui.navigation
+
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Build
+import androidx.compose.material.icons.filled.DirectionsBus
+import androidx.compose.ui.graphics.vector.ImageVector
+
+/**
+ * Top-level navigation destinations for auth-gated routing.
+ */
+sealed class Screen(val route: String) {
+    data object Login : Screen("login")
+    data object Main : Screen("main")
+    data object AddService : Screen("add_service")
+}
+
+/**
+ * Bottom navigation tab definitions for the main scaffold.
+ */
+enum class BottomTab(
+    val route: String,
+    val label: String,
+    val icon: ImageVector,
+    val placeholderText: String,
+) {
+    Trasy(
+        route = "trasy",
+        label = "Trasy",
+        icon = Icons.Filled.DirectionsBus,
+        placeholderText = "Trasy na dziś",
+    ),
+    Serwis(
+        route = "serwis",
+        label = "Serwis",
+        icon = Icons.Filled.Build,
+        placeholderText = "Historia serwisu",
+    ),
+}
--- a/app/src/main/java/pl/firmatpp/itstransport/ui/service/ServiceEventCard.kt
+++ b/app/src/main/java/pl/firmatpp/itstransport/ui/service/ServiceEventCard.kt
@@ -0,0 +1,165 @@
+package pl.firmatpp.itstransport.ui.service
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material3.ElevatedCard
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.dp
+import pl.firmatpp.itstransport.data.model.ServiceEvent
+import java.text.NumberFormat
+import java.util.Locale
+
+@Composable
+fun ServiceEventCard(
+    event: ServiceEvent,
+    modifier: Modifier = Modifier,
+) {
+    ElevatedCard(
+        modifier = modifier.fillMaxWidth(),
+    ) {
+        Column(
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(12.dp),
+        ) {
+            // Top row: service date + source badge
+            Row(
+                modifier = Modifier.fillMaxWidth(),
+                horizontalArrangement = Arrangement.SpaceBetween,
+                verticalAlignment = Alignment.CenterVertically,
+            ) {
+                Text(
+                    text = event.serviceDate,
+                    style = MaterialTheme.typography.titleMedium,
+                    fontWeight = FontWeight.Bold,
+                    color = MaterialTheme.colorScheme.primary,
+                )
+                if (event.source != null) {
+                    SourceBadge(source = event.source)
+                }
+            }
+
+            Spacer(modifier = Modifier.height(4.dp))
+
+            // Vehicle info
+            val vehicleText = event.costable?.licensePlate
+                ?: event.costable?.name
+                ?: "Brak pojazdu"
+            Text(
+                text = vehicleText,
+                style = MaterialTheme.typography.bodyLarge,
+                fontWeight = FontWeight.Medium,
+            )
+
+            Spacer(modifier = Modifier.height(2.dp))
+
+            // Items summary
+            val itemsSummary = buildItemsSummary(event)
+            Text(
+                text = itemsSummary,
+                style = MaterialTheme.typography.bodyMedium,
+                color = MaterialTheme.colorScheme.onSurfaceVariant,
+            )
+
+            Spacer(modifier = Modifier.height(8.dp))
+
+            // Bottom row: mileage + amount
+            Row(
+                modifier = Modifier.fillMaxWidth(),
+                horizontalArrangement = Arrangement.spacedBy(12.dp),
+                verticalAlignment = Alignment.CenterVertically,
+            ) {
+                if (event.mileage != null) {
+                    LabeledValue(
+                        label = "Przebieg",
+                        value = "${formatMileage(event.mileage)} km",
+                    )
+                }
+                if (event.totalAmount != null) {
+                    val amountText = if (event.currency != null) {
+                        "${event.totalAmount} ${event.currency}"
+                    } else {
+                        event.totalAmount
+                    }
+                    LabeledValue(label = "Kwota", value = amountText)
+                }
+            }
+        }
+    }
+}
+
+@Composable
+private fun SourceBadge(source: String) {
+    val label = when (source) {
+        "internal" -> "Wewnętrzny"
+        "external" -> "Zewnętrzny"
+        else -> source
+    }
+    Text(
+        text = label,
+        style = MaterialTheme.typography.labelSmall,
+        color = MaterialTheme.colorScheme.onTertiaryContainer,
+        modifier = Modifier
+            .background(
+                color = MaterialTheme.colorScheme.tertiaryContainer,
+                shape = RoundedCornerShape(4.dp),
+            )
+            .padding(horizontal = 8.dp, vertical = 2.dp),
+    )
+}
+
+@Composable
+private fun LabeledValue(label: String, value: String) {
+    Column {
+        Text(
+            text = label,
+            style = MaterialTheme.typography.labelSmall,
+            color = MaterialTheme.colorScheme.onSurfaceVariant,
+        )
+        Text(
+            text = value,
+            style = MaterialTheme.typography.bodySmall,
+            fontWeight = FontWeight.Medium,
+        )
+    }
+}
+
+/**
+ * Builds a summary string from service items.
+ * - Non-empty list: join first 3 item names + "..." if more.
+ * - Empty list with itemsCount > 0: "$itemsCount pozycji"
+ * - Otherwise: "Brak pozycji"
+ */
+private fun buildItemsSummary(event: ServiceEvent): String {
+    if (event.items.isNotEmpty()) {
+        val names = event.items.take(3).mapNotNull { it.name }
+        val joined = names.joinToString(", ")
+        return if (event.items.size > 3) "$joined..." else joined.ifEmpty { "${event.itemsCount} pozycji" }
+    }
+    return if (event.itemsCount > 0) {
+        "${event.itemsCount} pozycji"
+    } else {
+        "Brak pozycji"
+    }
+}
+
+/**
+ * Formats mileage with space as thousands separator.
+ * 123456 → "123 456"
+ */
+private fun formatMileage(mileage: Int): String {
+    val formatter = NumberFormat.getIntegerInstance(Locale("pl", "PL"))
+    return formatter.format(mileage).replace('\u00A0', ' ')
+}
--- a/app/src/main/java/pl/firmatpp/itstransport/ui/service/ServiceHistoryScreen.kt
+++ b/app/src/main/java/pl/firmatpp/itstransport/ui/service/ServiceHistoryScreen.kt
@@ -0,0 +1,448 @@
+package pl.firmatpp.itstransport.ui.service
+
+import androidx.compose.animation.AnimatedVisibility
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.PaddingValues
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.items
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Build
+import androidx.compose.material.icons.filled.Close
+import androidx.compose.material.icons.filled.ErrorOutline
+import androidx.compose.material.icons.filled.ExpandLess
+import androidx.compose.material.icons.filled.ExpandMore
+import androidx.compose.material.icons.filled.Search
+import androidx.compose.material3.Button
+import androidx.compose.material3.CircularProgressIndicator
+import androidx.compose.material3.DatePicker
+import androidx.compose.material3.DatePickerDialog
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.FilterChip
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.OutlinedTextField
+import androidx.compose.material3.Text
+import androidx.compose.material3.TextButton
+import androidx.compose.material3.pulltorefresh.PullToRefreshBox
+import androidx.compose.material3.rememberDatePickerState
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.saveable.rememberSaveable
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.unit.dp
+import androidx.hilt.navigation.compose.hiltViewModel
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import java.time.Instant
+import java.time.ZoneId
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun ServiceHistoryScreen(
+    modifier: Modifier = Modifier,
+    shouldRefresh: Boolean = false,
+    onRefreshConsumed: () -> Unit = {},
+    viewModel: ServiceHistoryViewModel = hiltViewModel(),
+) {
+    // External refresh trigger — e.g. after a service was just added via the wizard
+    LaunchedEffect(shouldRefresh) {
+        if (shouldRefresh) {
+            viewModel.refresh()
+            onRefreshConsumed()
+        }
+    }
+
+    val uiState by viewModel.uiState.collectAsStateWithLifecycle()
+    val isRefreshing by viewModel.isRefreshing.collectAsStateWithLifecycle()
+    val searchQuery by viewModel.searchQuery.collectAsStateWithLifecycle()
+    val dateFrom by viewModel.dateFrom.collectAsStateWithLifecycle()
+    val dateTo by viewModel.dateTo.collectAsStateWithLifecycle()
+    val sourceFilter by viewModel.sourceFilter.collectAsStateWithLifecycle()
+
+    PullToRefreshBox(
+        isRefreshing = isRefreshing,
+        onRefresh = { viewModel.refresh() },
+        modifier = modifier.fillMaxSize(),
+    ) {
+        Column(modifier = Modifier.fillMaxSize()) {
+            // ── Search bar ──
+            SearchBar(
+                query = searchQuery,
+                onQueryChange = viewModel::updateSearch,
+            )
+
+            // ── Collapsible filter section ──
+            FilterSection(
+                dateFrom = dateFrom,
+                dateTo = dateTo,
+                sourceFilter = sourceFilter,
+                onDateFromChange = viewModel::updateDateFrom,
+                onDateToChange = viewModel::updateDateTo,
+                onSourceFilterChange = viewModel::updateSourceFilter,
+                onClearFilters = viewModel::clearFilters,
+            )
+
+            // ── Content area ──
+            when (val state = uiState) {
+                is ServiceHistoryViewModel.ServiceHistoryUiState.Idle,
+                is ServiceHistoryViewModel.ServiceHistoryUiState.Loading -> {
+                    LoadingContent()
+                }
+
+                is ServiceHistoryViewModel.ServiceHistoryUiState.Success -> {
+                    ServiceEventList(
+                        events = state.events,
+                        hasMore = state.hasMore,
+                        onLoadMore = viewModel::loadMore,
+                    )
+                }
+
+                is ServiceHistoryViewModel.ServiceHistoryUiState.Error -> {
+                    ErrorContent(
+                        message = state.message,
+                        onRetry = { viewModel.refresh() },
+                    )
+                }
+
+                is ServiceHistoryViewModel.ServiceHistoryUiState.Empty -> {
+                    EmptyContent()
+                }
+            }
+        }
+    }
+}
+
+// ── Search bar ──
+
+@Composable
+private fun SearchBar(
+    query: String,
+    onQueryChange: (String) -> Unit,
+) {
+    OutlinedTextField(
+        value = query,
+        onValueChange = onQueryChange,
+        placeholder = { Text("Szukaj...") },
+        leadingIcon = {
+            Icon(
+                imageVector = Icons.Filled.Search,
+                contentDescription = "Szukaj",
+            )
+        },
+        trailingIcon = {
+            if (query.isNotEmpty()) {
+                IconButton(onClick = { onQueryChange("") }) {
+                    Icon(
+                        imageVector = Icons.Filled.Close,
+                        contentDescription = "Wyczyść",
+                    )
+                }
+            }
+        },
+        singleLine = true,
+        modifier = Modifier
+            .fillMaxWidth()
+            .padding(horizontal = 16.dp, vertical = 8.dp),
+    )
+}
+
+// ── Filter section ──
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+private fun FilterSection(
+    dateFrom: String?,
+    dateTo: String?,
+    sourceFilter: String?,
+    onDateFromChange: (String?) -> Unit,
+    onDateToChange: (String?) -> Unit,
+    onSourceFilterChange: (String?) -> Unit,
+    onClearFilters: () -> Unit,
+) {
+    var expanded by rememberSaveable { mutableStateOf(false) }
+    var showDateFromPicker by remember { mutableStateOf(false) }
+    var showDateToPicker by remember { mutableStateOf(false) }
+
+    Column(modifier = Modifier.padding(horizontal = 16.dp)) {
+        // Toggle row
+        Row(
+            verticalAlignment = Alignment.CenterVertically,
+        ) {
+            TextButton(onClick = { expanded = !expanded }) {
+                Text("Filtry")
+                Icon(
+                    imageVector = if (expanded) Icons.Filled.ExpandLess else Icons.Filled.ExpandMore,
+                    contentDescription = if (expanded) "Zwiń" else "Rozwiń",
+                    modifier = Modifier.padding(start = 4.dp),
+                )
+            }
+        }
+
+        AnimatedVisibility(visible = expanded) {
+            Column {
+                // Date range row
+                Row(
+                    modifier = Modifier.fillMaxWidth(),
+                    horizontalArrangement = Arrangement.spacedBy(8.dp),
+                ) {
+                    OutlinedTextField(
+                        value = dateFrom ?: "",
+                        onValueChange = {},
+                        readOnly = true,
+                        label = { Text("Data od") },
+                        modifier = Modifier
+                            .weight(1f),
+                        enabled = true,
+                    )
+                    OutlinedTextField(
+                        value = dateTo ?: "",
+                        onValueChange = {},
+                        readOnly = true,
+                        label = { Text("Data do") },
+                        modifier = Modifier
+                            .weight(1f),
+                        enabled = true,
+                    )
+                }
+
+                // Click targets for date pickers (TextButtons below the fields)
+                Row(
+                    modifier = Modifier.fillMaxWidth(),
+                    horizontalArrangement = Arrangement.spacedBy(8.dp),
+                ) {
+                    TextButton(
+                        onClick = { showDateFromPicker = true },
+                        modifier = Modifier.weight(1f),
+                    ) {
+                        Text(if (dateFrom != null) "Zmień" else "Wybierz")
+                    }
+                    TextButton(
+                        onClick = { showDateToPicker = true },
+                        modifier = Modifier.weight(1f),
+                    ) {
+                        Text(if (dateTo != null) "Zmień" else "Wybierz")
+                    }
+                }
+
+                Spacer(modifier = Modifier.height(8.dp))
+
+                // Source filter chips
+                Row(
+                    horizontalArrangement = Arrangement.spacedBy(8.dp),
+                ) {
+                    FilterChip(
+                        selected = sourceFilter == null,
+                        onClick = { onSourceFilterChange(null) },
+                        label = { Text("Wszystkie") },
+                    )
+                    FilterChip(
+                        selected = sourceFilter == "internal",
+                        onClick = { onSourceFilterChange("internal") },
+                        label = { Text("Wewnętrzne") },
+                    )
+                    FilterChip(
+                        selected = sourceFilter == "external",
+                        onClick = { onSourceFilterChange("external") },
+                        label = { Text("Zewnętrzne") },
+                    )
+                }
+
+                Spacer(modifier = Modifier.height(8.dp))
+
+                // Clear filters button
+                TextButton(onClick = onClearFilters) {
+                    Text("Wyczyść filtry")
+                }
+            }
+        }
+    }
+
+    // ── Date picker dialogs ──
+    if (showDateFromPicker) {
+        DatePickerDialogWrapper(
+            onDateSelected = { onDateFromChange(it) },
+            onDismiss = { showDateFromPicker = false },
+        )
+    }
+    if (showDateToPicker) {
+        DatePickerDialogWrapper(
+            onDateSelected = { onDateToChange(it) },
+            onDismiss = { showDateToPicker = false },
+        )
+    }
+}
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+private fun DatePickerDialogWrapper(
+    onDateSelected: (String) -> Unit,
+    onDismiss: () -> Unit,
+) {
+    val datePickerState = rememberDatePickerState()
+
+    DatePickerDialog(
+        onDismissRequest = onDismiss,
+        confirmButton = {
+            TextButton(
+                onClick = {
+                    datePickerState.selectedDateMillis?.let { millis ->
+                        val date = Instant.ofEpochMilli(millis)
+                            .atZone(ZoneId.systemDefault())
+                            .toLocalDate()
+                            .toString()
+                        onDateSelected(date)
+                    }
+                    onDismiss()
+                },
+            ) {
+                Text("OK")
+            }
+        },
+        dismissButton = {
+            TextButton(onClick = onDismiss) {
+                Text("Anuluj")
+            }
+        },
+    ) {
+        DatePicker(state = datePickerState)
+    }
+}
+
+// ── Content sections ──
+
+@Composable
+private fun LoadingContent() {
+    Box(
+        modifier = Modifier.fillMaxSize(),
+        contentAlignment = Alignment.Center,
+    ) {
+        CircularProgressIndicator()
+    }
+}
+
+@Composable
+private fun ServiceEventList(
+    events: List<pl.firmatpp.itstransport.data.model.ServiceEvent>,
+    hasMore: Boolean,
+    onLoadMore: () -> Unit,
+) {
+    LazyColumn(
+        contentPadding = PaddingValues(horizontal = 16.dp, vertical = 12.dp),
+        verticalArrangement = Arrangement.spacedBy(12.dp),
+    ) {
+        items(
+            items = events,
+            key = { it.id },
+        ) { event ->
+            ServiceEventCard(event = event)
+        }
+
+        if (hasMore) {
+            item {
+                Box(
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .padding(vertical = 8.dp),
+                    contentAlignment = Alignment.Center,
+                ) {
+                    Button(onClick = onLoadMore) {
+                        Text("Załaduj więcej")
+                    }
+                }
+            }
+        }
+    }
+}
+
+@Composable
+private fun ErrorContent(
+    message: String,
+    onRetry: () -> Unit,
+) {
+    Column(
+        modifier = Modifier
+            .fillMaxSize()
+            .padding(32.dp),
+        horizontalAlignment = Alignment.CenterHorizontally,
+        verticalArrangement = Arrangement.Center,
+    ) {
+        Icon(
+            imageVector = Icons.Filled.ErrorOutline,
+            contentDescription = null,
+            modifier = Modifier.size(64.dp),
+            tint = MaterialTheme.colorScheme.error,
+        )
+
+        Spacer(modifier = Modifier.height(16.dp))
+
+        Text(
+            text = "Błąd",
+            style = MaterialTheme.typography.headlineSmall,
+            color = MaterialTheme.colorScheme.error,
+        )
+
+        Spacer(modifier = Modifier.height(8.dp))
+
+        Text(
+            text = message,
+            style = MaterialTheme.typography.bodyMedium,
+            color = MaterialTheme.colorScheme.onSurfaceVariant,
+            textAlign = TextAlign.Center,
+        )
+
+        Spacer(modifier = Modifier.height(24.dp))
+
+        Button(onClick = onRetry) {
+            Text("Spróbuj ponownie")
+        }
+    }
+}
+
+@Composable
+private fun EmptyContent() {
+    Column(
+        modifier = Modifier
+            .fillMaxSize()
+            .padding(32.dp),
+        horizontalAlignment = Alignment.CenterHorizontally,
+        verticalArrangement = Arrangement.Center,
+    ) {
+        Icon(
+            imageVector = Icons.Filled.Build,
+            contentDescription = null,
+            modifier = Modifier.size(64.dp),
+            tint = MaterialTheme.colorScheme.onSurfaceVariant,
+        )
+
+        Spacer(modifier = Modifier.height(16.dp))
+
+        Text(
+            text = "Brak historii serwisu",
+            style = MaterialTheme.typography.headlineSmall,
+            color = MaterialTheme.colorScheme.onSurfaceVariant,
+        )
+
+        Spacer(modifier = Modifier.height(8.dp))
+
+        Text(
+            text = "Brak wyników",
+            style = MaterialTheme.typography.bodyMedium,
+            color = MaterialTheme.colorScheme.onSurfaceVariant,
+        )
+    }
+}
--- a/app/src/main/java/pl/firmatpp/itstransport/ui/service/ServiceHistoryViewModel.kt
+++ b/app/src/main/java/pl/firmatpp/itstransport/ui/service/ServiceHistoryViewModel.kt
@@ -0,0 +1,225 @@
+package pl.firmatpp.itstransport.ui.service
+
+import android.util.Log
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.launch
+import pl.firmatpp.itstransport.data.auth.ApiException
+import pl.firmatpp.itstransport.data.model.ServiceEvent
+import pl.firmatpp.itstransport.data.model.ServiceEventFilters
+import pl.firmatpp.itstransport.data.repository.ServiceRepository
+import java.io.IOException
+import java.net.UnknownHostException
+import javax.inject.Inject
+
+@HiltViewModel
+class ServiceHistoryViewModel @Inject constructor(
+    private val serviceRepository: ServiceRepository,
+) : ViewModel() {
+
+    companion object {
+        private const val TAG = "ServiceHistoryVM"
+    }
+
+    // ── Sealed UI state (K004 pattern: defined inside ViewModel file) ──
+
+    sealed class ServiceHistoryUiState {
+        data object Idle : ServiceHistoryUiState()
+        data object Loading : ServiceHistoryUiState()
+        data class Success(
+            val events: List<ServiceEvent>,
+            val hasMore: Boolean,
+        ) : ServiceHistoryUiState()
+        data class Error(val message: String) : ServiceHistoryUiState()
+        data object Empty : ServiceHistoryUiState()
+    }
+
+    // ── Observable state ──
+
+    private val _uiState = MutableStateFlow<ServiceHistoryUiState>(ServiceHistoryUiState.Idle)
+    val uiState: StateFlow<ServiceHistoryUiState> = _uiState.asStateFlow()
+
+    /** Separate refreshing flag — never reuse Loading for pull-to-refresh (K007). */
+    private val _isRefreshing = MutableStateFlow(false)
+    val isRefreshing: StateFlow<Boolean> = _isRefreshing.asStateFlow()
+
+    private val _searchQuery = MutableStateFlow("")
+    val searchQuery: StateFlow<String> = _searchQuery.asStateFlow()
+
+    private val _dateFrom = MutableStateFlow<String?>(null)
+    val dateFrom: StateFlow<String?> = _dateFrom.asStateFlow()
+
+    private val _dateTo = MutableStateFlow<String?>(null)
+    val dateTo: StateFlow<String?> = _dateTo.asStateFlow()
+
+    private val _sourceFilter = MutableStateFlow<String?>(null)
+    val sourceFilter: StateFlow<String?> = _sourceFilter.asStateFlow()
+
+    // ── Pagination tracking ──
+
+    private var currentPage: Int = 1
+    private var lastPage: Int = 1
+    private val allEvents: MutableList<ServiceEvent> = mutableListOf()
+
+    // ── Lifecycle ──
+
+    init {
+        loadInitial()
+    }
+
+    // ── Public API ──
+
+    /** Initial load — shows Loading state. */
+    fun loadInitial() {
+        Log.d(TAG, "loadInitial: starting first page fetch")
+        _uiState.value = ServiceHistoryUiState.Loading
+        currentPage = 1
+        lastPage = 1
+        allEvents.clear()
+        fetchEvents(page = 1, isLoadMore = false)
+    }
+
+    /** Append next page to the accumulated list. */
+    fun loadMore() {
+        if (currentPage >= lastPage) {
+            Log.d(TAG, "loadMore: already on last page ($currentPage/$lastPage), ignoring")
+            return
+        }
+        val nextPage = currentPage + 1
+        Log.d(TAG, "loadMore: fetching page $nextPage")
+        fetchEvents(page = nextPage, isLoadMore = true)
+    }
+
+    /** Pull-to-refresh — uses separate isRefreshing flag (K007). */
+    fun refresh() {
+        Log.d(TAG, "Pull-to-refresh triggered")
+        _isRefreshing.value = true
+        currentPage = 1
+        lastPage = 1
+        allEvents.clear()
+        fetchEvents(page = 1, isLoadMore = false)
+    }
+
+    fun updateSearch(query: String) {
+        Log.d(TAG, "Filter change: search='$query'")
+        _searchQuery.value = query
+        resetAndReload()
+    }
+
+    fun updateDateFrom(date: String?) {
+        Log.d(TAG, "Filter change: dateFrom=$date")
+        _dateFrom.value = date
+        resetAndReload()
+    }
+
+    fun updateDateTo(date: String?) {
+        Log.d(TAG, "Filter change: dateTo=$date")
+        _dateTo.value = date
+        resetAndReload()
+    }
+
+    fun updateSourceFilter(source: String?) {
+        Log.d(TAG, "Filter change: source=$source")
+        _sourceFilter.value = source
+        resetAndReload()
+    }
+
+    fun clearFilters() {
+        Log.d(TAG, "Clearing all filters")
+        _searchQuery.value = ""
+        _dateFrom.value = null
+        _dateTo.value = null
+        _sourceFilter.value = null
+        resetAndReload()
+    }
+
+    // ── Private helpers ──
+
+    /** Reset pagination and fetch from page 1 (used by filter changes). */
+    private fun resetAndReload() {
+        _uiState.value = ServiceHistoryUiState.Loading
+        currentPage = 1
+        lastPage = 1
+        allEvents.clear()
+        fetchEvents(page = 1, isLoadMore = false)
+    }
+
+    /**
+     * Fetches a page of service events.
+     * - [isLoadMore] = true → appends to [allEvents].
+     * - [isLoadMore] = false → replaces [allEvents].
+     */
+    private fun fetchEvents(page: Int, isLoadMore: Boolean) {
+        viewModelScope.launch {
+            val filters = ServiceEventFilters(
+                search = _searchQuery.value,
+                dateFrom = _dateFrom.value,
+                dateTo = _dateTo.value,
+                source = _sourceFilter.value,
+            )
+
+            val result = serviceRepository.getEvents(filters, page)
+
+            result.fold(
+                onSuccess = { response ->
+                    currentPage = response.meta.currentPage
+                    lastPage = response.meta.lastPage
+
+                    if (isLoadMore) {
+                        allEvents.addAll(response.data)
+                    } else {
+                        allEvents.clear()
+                        allEvents.addAll(response.data)
+                    }
+
+                    if (allEvents.isEmpty()) {
+                        Log.d(TAG, "Loaded page $currentPage/$lastPage — result list is empty")
+                        _uiState.value = ServiceHistoryUiState.Empty
+                    } else {
+                        val hasMore = currentPage < lastPage
+                        Log.d(TAG, "Loaded page $currentPage/$lastPage, total accumulated=${allEvents.size}, hasMore=$hasMore")
+                        _uiState.value = ServiceHistoryUiState.Success(
+                            events = allEvents.toList(),
+                            hasMore = hasMore,
+                        )
+                    }
+                },
+                onFailure = { exception ->
+                    val message = mapErrorToPolishMessage(exception)
+                    Log.w(TAG, "Fetch failed: ${exception.javaClass.simpleName} → \"$message\"")
+                    _uiState.value = ServiceHistoryUiState.Error(message)
+                },
+            )
+
+            _isRefreshing.value = false
+        }
+    }
+
+    /** Maps exceptions to Polish user-facing messages — mirrors HomeViewModel pattern. */
+    private fun mapErrorToPolishMessage(exception: Throwable): String {
+        return when {
+            exception is IOException || exception is UnknownHostException ->
+                "Brak połączenia z serwerem. Sprawdź internet i spróbuj ponownie."
+
+            exception is ApiException -> when {
+                exception.code == 401 ->
+                    "Sesja wygasła. Zaloguj się ponownie."
+                exception.code == 403 ->
+                    "Brak uprawnień do wyświetlenia historii serwisu."
+                exception.code in 500..599 ->
+                    "Błąd serwera. Spróbuj ponownie za chwilę."
+                else ->
+                    "Wystąpił nieoczekiwany błąd. Spróbuj ponownie."
+            }
+
+            exception.cause is IOException || exception.cause is UnknownHostException ->
+                "Brak połączenia z serwerem. Sprawdź internet i spróbuj ponownie."
+
+            else -> "Wystąpił nieoczekiwany błąd. Spróbuj ponownie."
+        }
+    }
+}
--- a/app/src/main/java/pl/firmatpp/itstransport/ui/service/wizard/AddServiceScreen.kt
+++ b/app/src/main/java/pl/firmatpp/itstransport/ui/service/wizard/AddServiceScreen.kt
@@ -0,0 +1,334 @@
+package pl.firmatpp.itstransport.ui.service.wizard
+
+import android.widget.Toast
+import androidx.activity.compose.BackHandler
+import androidx.compose.animation.AnimatedContent
+import androidx.compose.animation.slideInHorizontally
+import androidx.compose.animation.slideOutHorizontally
+import androidx.compose.animation.togetherWith
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.automirrored.filled.ArrowBack
+import androidx.compose.material.icons.filled.ErrorOutline
+import androidx.compose.material3.Button
+import androidx.compose.material3.CenterAlignedTopAppBar
+import androidx.compose.material3.CircularProgressIndicator
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.LinearProgressIndicator
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Scaffold
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.unit.dp
+import androidx.hilt.navigation.compose.hiltViewModel
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+
+// ──────────────────────────────────────────────
+// AddServiceScreen — Wizard host composable
+//
+// Creates the ViewModel, routes to the 3 steps,
+// shows step progress, handles back press, and
+// manages loading/error/success states.
+// ──────────────────────────────────────────────
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun AddServiceScreen(
+    onNavigateBack: () -> Unit,
+    onServiceSubmitted: () -> Unit = {},
+    viewModel: AddServiceViewModel = hiltViewModel(),
+) {
+    val uiState by viewModel.uiState.collectAsStateWithLifecycle()
+    val currentStep by viewModel.currentStep.collectAsStateWithLifecycle()
+    val context = LocalContext.current
+
+    // Wire the onServiceAdded callback to show toast + navigate back
+    LaunchedEffect(Unit) {
+        viewModel.onServiceAdded = {
+            // Callback fires from ViewModel after successful submit
+        }
+    }
+
+    // Auto-navigate back on submit success — signals refresh via onServiceSubmitted
+    LaunchedEffect(uiState) {
+        if (uiState is AddServiceViewModel.WizardUiState.SubmitSuccess) {
+            Toast.makeText(context, "Serwis zapisany", Toast.LENGTH_SHORT).show()
+            onServiceSubmitted()
+        }
+    }
+
+    // Handle system back press — go to previous step or exit wizard
+    BackHandler {
+        when (currentStep) {
+            AddServiceViewModel.WizardStep.VEHICLE -> onNavigateBack()
+            else -> viewModel.goToPrevious()
+        }
+    }
+
+    Scaffold(
+        topBar = {
+            CenterAlignedTopAppBar(
+                title = { Text("Dodaj serwis") },
+                navigationIcon = {
+                    IconButton(onClick = {
+                        when (currentStep) {
+                            AddServiceViewModel.WizardStep.VEHICLE -> onNavigateBack()
+                            else -> viewModel.goToPrevious()
+                        }
+                    }) {
+                        Icon(
+                            imageVector = Icons.AutoMirrored.Filled.ArrowBack,
+                            contentDescription = "Wstecz",
+                        )
+                    }
+                },
+            )
+        },
+    ) { innerPadding ->
+        Column(
+            modifier = Modifier
+                .fillMaxSize()
+                .padding(innerPadding),
+        ) {
+            // ── Step progress indicator ──
+            StepProgressIndicator(currentStep = currentStep)
+
+            // ── Content area ──
+            when (val state = uiState) {
+                is AddServiceViewModel.WizardUiState.Loading -> {
+                    LoadingContent()
+                }
+
+                is AddServiceViewModel.WizardUiState.Error -> {
+                    ErrorContent(
+                        message = state.message,
+                        onRetry = viewModel::retryLoad,
+                    )
+                }
+
+                is AddServiceViewModel.WizardUiState.Ready,
+                is AddServiceViewModel.WizardUiState.Submitting,
+                is AddServiceViewModel.WizardUiState.SubmitError,
+                is AddServiceViewModel.WizardUiState.SubmitSuccess -> {
+                    WizardStepContent(
+                        viewModel = viewModel,
+                        uiState = state,
+                        currentStep = currentStep,
+                        modifier = Modifier.weight(1f),
+                    )
+                }
+            }
+        }
+    }
+}
+
+// ──────────────────────────────────────────────
+// Step progress indicator
+// ──────────────────────────────────────────────
+
+@Composable
+private fun StepProgressIndicator(
+    currentStep: AddServiceViewModel.WizardStep,
+) {
+    val stepIndex = AddServiceViewModel.WizardStep.entries.indexOf(currentStep)
+    val totalSteps = AddServiceViewModel.WizardStep.entries.size
+    val progress = (stepIndex + 1).toFloat() / totalSteps
+
+    Column(
+        modifier = Modifier.padding(horizontal = 16.dp, vertical = 8.dp),
+    ) {
+        LinearProgressIndicator(
+            progress = { progress },
+            modifier = Modifier
+                .fillMaxWidth()
+                .height(4.dp),
+        )
+        Spacer(modifier = Modifier.height(4.dp))
+        Row(
+            modifier = Modifier.fillMaxWidth(),
+        ) {
+            val labels = listOf("Pojazd", "Usługi", "Podsumowanie")
+            labels.forEachIndexed { index, label ->
+                Text(
+                    text = label,
+                    style = MaterialTheme.typography.labelSmall,
+                    color = if (index <= stepIndex) {
+                        MaterialTheme.colorScheme.primary
+                    } else {
+                        MaterialTheme.colorScheme.onSurfaceVariant
+                    },
+                    modifier = Modifier.weight(1f),
+                    textAlign = when (index) {
+                        0 -> TextAlign.Start
+                        labels.lastIndex -> TextAlign.End
+                        else -> TextAlign.Center
+                    },
+                )
+            }
+        }
+    }
+}
+
+// ──────────────────────────────────────────────
+// Wizard step routing with animated transitions
+// ──────────────────────────────────────────────
+
+@Composable
+private fun WizardStepContent(
+    viewModel: AddServiceViewModel,
+    uiState: AddServiceViewModel.WizardUiState,
+    currentStep: AddServiceViewModel.WizardStep,
+    modifier: Modifier = Modifier,
+) {
+    // Collect all state needed by steps
+    val vehicleTab by viewModel.vehicleTab.collectAsStateWithLifecycle()
+    val searchQuery by viewModel.vehicleSearchQuery.collectAsStateWithLifecycle()
+    val selectedVehicleId by viewModel.selectedVehicleId.collectAsStateWithLifecycle()
+    val selectedServices by viewModel.selectedServices.collectAsStateWithLifecycle()
+    val expandedCategoryId by viewModel.expandedCategoryId.collectAsStateWithLifecycle()
+    val serviceDate by viewModel.serviceDate.collectAsStateWithLifecycle()
+    val mileage by viewModel.mileage.collectAsStateWithLifecycle()
+    val generalNotes by viewModel.generalNotes.collectAsStateWithLifecycle()
+
+    // Reference data is cached on the ViewModel — survives Submitting/SubmitError states
+    val trucks = viewModel.trucks
+    val trailers = viewModel.trailers
+    val serviceTypes = viewModel.serviceTypes
+
+    val isSubmitting = uiState is AddServiceViewModel.WizardUiState.Submitting
+    val submitError = (uiState as? AddServiceViewModel.WizardUiState.SubmitError)?.message
+
+    AnimatedContent(
+        targetState = currentStep,
+        modifier = modifier,
+        transitionSpec = {
+            val forward = targetState.ordinal > initialState.ordinal
+            if (forward) {
+                slideInHorizontally { it } togetherWith slideOutHorizontally { -it }
+            } else {
+                slideInHorizontally { -it } togetherWith slideOutHorizontally { it }
+            }
+        },
+        label = "wizard_step",
+    ) { step ->
+        when (step) {
+            AddServiceViewModel.WizardStep.VEHICLE -> {
+                VehicleSelectStep(
+                    trucks = trucks,
+                    trailers = trailers,
+                    vehicleTab = vehicleTab,
+                    searchQuery = searchQuery,
+                    selectedVehicleId = selectedVehicleId,
+                    onTabChange = viewModel::switchVehicleTab,
+                    onSearchChange = viewModel::updateVehicleSearch,
+                    onVehicleSelect = viewModel::selectVehicle,
+                    onNext = viewModel::goToNext,
+                )
+            }
+
+            AddServiceViewModel.WizardStep.SERVICES -> {
+                ServiceSelectStep(
+                    serviceTypes = viewModel.filteredServiceTypes(),
+                    selectedServices = selectedServices,
+                    expandedCategoryId = expandedCategoryId,
+                    vehicleTab = vehicleTab,
+                    onToggleService = viewModel::toggleService,
+                    onToggleCategory = viewModel::toggleCategory,
+                    onUpdatePositions = viewModel::updatePositions,
+                    onUpdateNotes = viewModel::updateServiceNotes,
+                    onUpdateAmount = viewModel::updateServiceAmount,
+                    onBack = viewModel::goToPrevious,
+                    onNext = viewModel::goToNext,
+                )
+            }
+
+            AddServiceViewModel.WizardStep.SUMMARY -> {
+                SummaryStep(
+                    serviceDate = serviceDate,
+                    mileage = mileage,
+                    generalNotes = generalNotes,
+                    selectedVehicleId = selectedVehicleId,
+                    vehicleTab = vehicleTab,
+                    trucks = trucks,
+                    trailers = trailers,
+                    selectedServices = selectedServices,
+                    isSubmitting = isSubmitting,
+                    submitError = submitError,
+                    onDateChange = viewModel::updateDate,
+                    onMileageChange = viewModel::updateMileage,
+                    onNotesChange = viewModel::updateNotes,
+                    onBack = viewModel::goToPrevious,
+                    onSubmit = viewModel::submitService,
+                    onDismissError = viewModel::dismissSubmitError,
+                )
+            }
+        }
+    }
+}
+
+// ──────────────────────────────────────────────
+// Loading / Error states
+// ──────────────────────────────────────────────
+
+@Composable
+private fun LoadingContent() {
+    Box(
+        modifier = Modifier.fillMaxSize(),
+        contentAlignment = Alignment.Center,
+    ) {
+        CircularProgressIndicator()
+    }
+}
+
+@Composable
+private fun ErrorContent(
+    message: String,
+    onRetry: () -> Unit,
+) {
+    Column(
+        modifier = Modifier
+            .fillMaxSize()
+            .padding(32.dp),
+        horizontalAlignment = Alignment.CenterHorizontally,
+        verticalArrangement = Arrangement.Center,
+    ) {
+        Icon(
+            imageVector = Icons.Filled.ErrorOutline,
+            contentDescription = null,
+            modifier = Modifier.size(64.dp),
+            tint = MaterialTheme.colorScheme.error,
+        )
+
+        Spacer(modifier = Modifier.height(16.dp))
+
+        Text(
+            text = message,
+            style = MaterialTheme.typography.bodyMedium,
+            color = MaterialTheme.colorScheme.onSurfaceVariant,
+            textAlign = TextAlign.Center,
+        )
+
+        Spacer(modifier = Modifier.height(24.dp))
+
+        Button(onClick = onRetry) {
+            Text("Spróbuj ponownie")
+        }
+    }
+}
--- a/app/src/main/java/pl/firmatpp/itstransport/ui/service/wizard/AddServiceViewModel.kt
+++ b/app/src/main/java/pl/firmatpp/itstransport/ui/service/wizard/AddServiceViewModel.kt
@@ -0,0 +1,404 @@
+package pl.firmatpp.itstransport.ui.service.wizard
+
+import android.util.Log
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.async
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.launch
+import pl.firmatpp.itstransport.data.auth.ApiException
+import pl.firmatpp.itstransport.data.model.CreateServiceEventRequest
+import pl.firmatpp.itstransport.data.model.CreateServiceItemRequest
+import pl.firmatpp.itstransport.data.model.Position
+import pl.firmatpp.itstransport.data.model.SelectedService
+import pl.firmatpp.itstransport.data.model.ServiceType
+import pl.firmatpp.itstransport.data.model.Trailer
+import pl.firmatpp.itstransport.data.model.Truck
+import pl.firmatpp.itstransport.data.repository.ServiceWizardRepository
+import java.io.IOException
+import java.net.UnknownHostException
+import java.time.LocalDate
+import java.time.format.DateTimeFormatter
+import javax.inject.Inject
+
+@HiltViewModel
+class AddServiceViewModel @Inject constructor(
+    private val repository: ServiceWizardRepository,
+) : ViewModel() {
+
+    companion object {
+        private const val TAG = "AddServiceVM"
+    }
+
+    // ══════════════════════════════════════════════
+    // Enums
+    // ══════════════════════════════════════════════
+
+    enum class WizardStep { VEHICLE, SERVICES, SUMMARY }
+
+    enum class VehicleTab { TRUCKS, TRAILERS }
+
+    // ══════════════════════════════════════════════
+    // Sealed UI state (K004: defined inside ViewModel file)
+    // ══════════════════════════════════════════════
+
+    sealed class WizardUiState {
+        data object Loading : WizardUiState()
+
+        data class Ready(
+            val trucks: List<Truck>,
+            val trailers: List<Trailer>,
+            val serviceTypes: List<ServiceType>,
+        ) : WizardUiState()
+
+        data object Submitting : WizardUiState()
+        data object SubmitSuccess : WizardUiState()
+        data class SubmitError(val message: String) : WizardUiState()
+
+        data class Error(val message: String) : WizardUiState()
+    }
+
+    // ══════════════════════════════════════════════
+    // Observable state
+    // ══════════════════════════════════════════════
+
+    private val _uiState = MutableStateFlow<WizardUiState>(WizardUiState.Loading)
+    val uiState: StateFlow<WizardUiState> = _uiState.asStateFlow()
+
+    // -- Wizard step navigation --
+    private val _currentStep = MutableStateFlow(WizardStep.VEHICLE)
+    val currentStep: StateFlow<WizardStep> = _currentStep.asStateFlow()
+
+    // -- Vehicle selection --
+    private val _vehicleTab = MutableStateFlow(VehicleTab.TRUCKS)
+    val vehicleTab: StateFlow<VehicleTab> = _vehicleTab.asStateFlow()
+
+    private val _selectedVehicleId = MutableStateFlow<Long?>(null)
+    val selectedVehicleId: StateFlow<Long?> = _selectedVehicleId.asStateFlow()
+
+    private val _vehicleSearchQuery = MutableStateFlow("")
+    val vehicleSearchQuery: StateFlow<String> = _vehicleSearchQuery.asStateFlow()
+
+    // -- Service selection --
+    private val _selectedServices = MutableStateFlow<List<SelectedService>>(emptyList())
+    val selectedServices: StateFlow<List<SelectedService>> = _selectedServices.asStateFlow()
+
+    private val _expandedCategoryId = MutableStateFlow<Long?>(null)
+    val expandedCategoryId: StateFlow<Long?> = _expandedCategoryId.asStateFlow()
+
+    // -- Summary fields --
+    private val _serviceDate = MutableStateFlow(
+        LocalDate.now().format(DateTimeFormatter.ISO_LOCAL_DATE),
+    )
+    val serviceDate: StateFlow<String> = _serviceDate.asStateFlow()
+
+    private val _mileage = MutableStateFlow<Int?>(null)
+    val mileage: StateFlow<Int?> = _mileage.asStateFlow()
+
+    private val _generalNotes = MutableStateFlow<String?>(null)
+    val generalNotes: StateFlow<String?> = _generalNotes.asStateFlow()
+
+    // Callback invoked after successful submission so the caller can trigger a history refresh.
+    var onServiceAdded: (() -> Unit)? = null
+
+    // Cache reference data so it survives across steps without re-fetching
+    private var _trucks: List<Truck> = emptyList()
+    private var _trailers: List<Trailer> = emptyList()
+    private var _serviceTypes: List<ServiceType> = emptyList()
+
+    // Public accessors for reference data — cached across all UI states
+    val trucks: List<Truck> get() = _trucks
+    val trailers: List<Trailer> get() = _trailers
+    val serviceTypes: List<ServiceType> get() = _serviceTypes
+
+    // ══════════════════════════════════════════════
+    // Init — load reference data in parallel
+    // ══════════════════════════════════════════════
+
+    init {
+        loadReferenceData()
+    }
+
+    fun retryLoad() {
+        Log.d(TAG, "retryLoad: reloading reference data")
+        _uiState.value = WizardUiState.Loading
+        loadReferenceData()
+    }
+
+    private fun loadReferenceData() {
+        Log.d(TAG, "Loading reference data (trucks, trailers, service types)")
+        viewModelScope.launch {
+            val trucksDeferred = async { repository.getTrucks() }
+            val trailersDeferred = async { repository.getTrailers() }
+            val serviceTypesDeferred = async { repository.getServiceTypes() }
+
+            val trucksResult = trucksDeferred.await()
+            val trailersResult = trailersDeferred.await()
+            val serviceTypesResult = serviceTypesDeferred.await()
+
+            // If any call failed, surface the first error
+            val firstFailure = listOf(trucksResult, trailersResult, serviceTypesResult)
+                .firstOrNull { it.isFailure }
+
+            if (firstFailure != null) {
+                val error = firstFailure.exceptionOrNull()!!
+                val message = mapErrorToPolishMessage(error)
+                Log.w(TAG, "Reference data load failed: ${error.javaClass.simpleName} → \"$message\"")
+                _uiState.value = WizardUiState.Error(message)
+                return@launch
+            }
+
+            _trucks = trucksResult.getOrThrow()
+            _trailers = trailersResult.getOrThrow()
+            _serviceTypes = serviceTypesResult.getOrThrow()
+
+            Log.d(
+                TAG,
+                "Reference data loaded: trucks=${_trucks.size}, trailers=${_trailers.size}, serviceTypes=${_serviceTypes.size}",
+            )
+            _uiState.value = WizardUiState.Ready(
+                trucks = _trucks,
+                trailers = _trailers,
+                serviceTypes = _serviceTypes,
+            )
+        }
+    }
+
+    // ══════════════════════════════════════════════
+    // Step navigation
+    // ══════════════════════════════════════════════
+
+    fun goToNext() {
+        val next = when (_currentStep.value) {
+            WizardStep.VEHICLE -> WizardStep.SERVICES
+            WizardStep.SERVICES -> WizardStep.SUMMARY
+            WizardStep.SUMMARY -> return // already at last step
+        }
+        Log.d(TAG, "Step: ${_currentStep.value} → $next")
+        _currentStep.value = next
+    }
+
+    fun goToPrevious() {
+        val prev = when (_currentStep.value) {
+            WizardStep.VEHICLE -> return // already at first step
+            WizardStep.SERVICES -> WizardStep.VEHICLE
+            WizardStep.SUMMARY -> WizardStep.SERVICES
+        }
+        Log.d(TAG, "Step: ${_currentStep.value} → $prev")
+        _currentStep.value = prev
+    }
+
+    // ══════════════════════════════════════════════
+    // Vehicle selection
+    // ══════════════════════════════════════════════
+
+    fun switchVehicleTab(tab: VehicleTab) {
+        if (_vehicleTab.value == tab) return
+        Log.d(TAG, "Vehicle tab: ${_vehicleTab.value} → $tab")
+        _vehicleTab.value = tab
+        // Clear selection when switching tabs — a truck ID is not valid for trailers and vice versa
+        _selectedVehicleId.value = null
+        _vehicleSearchQuery.value = ""
+        // Clear selected services since they may be filtered by vehicle type
+        _selectedServices.value = emptyList()
+        _expandedCategoryId.value = null
+    }
+
+    fun selectVehicle(vehicleId: Long) {
+        Log.d(TAG, "Selected vehicle: id=$vehicleId (tab=${_vehicleTab.value})")
+        _selectedVehicleId.value = vehicleId
+    }
+
+    fun updateVehicleSearch(query: String) {
+        _vehicleSearchQuery.value = query
+    }
+
+    /**
+     * Returns service types filtered by current vehicle tab.
+     * A category with vehicleType "all" is always shown.
+     * "truck" categories show on TRUCKS tab; "truck_trailer" on TRAILERS tab.
+     */
+    fun filteredServiceTypes(): List<ServiceType> {
+        val tabFilter = when (_vehicleTab.value) {
+            VehicleTab.TRUCKS -> "truck"
+            VehicleTab.TRAILERS -> "truck_trailer"
+        }
+        return _serviceTypes.filter { st ->
+            val catType = st.category?.vehicleType
+            catType == null || catType == "all" || catType == tabFilter
+        }
+    }
+
+    // ══════════════════════════════════════════════
+    // Service selection
+    // ══════════════════════════════════════════════
+
+    fun toggleService(serviceType: ServiceType) {
+        val current = _selectedServices.value.toMutableList()
+        val existing = current.indexOfFirst { it.serviceType.id == serviceType.id }
+        if (existing >= 0) {
+            current.removeAt(existing)
+            Log.d(TAG, "Removed service: ${serviceType.name} (id=${serviceType.id})")
+        } else {
+            current.add(SelectedService(serviceType = serviceType))
+            Log.d(TAG, "Added service: ${serviceType.name} (id=${serviceType.id})")
+        }
+        _selectedServices.value = current
+    }
+
+    fun removeService(serviceTypeId: Long) {
+        val current = _selectedServices.value.toMutableList()
+        val removed = current.removeAll { it.serviceType.id == serviceTypeId }
+        if (removed) {
+            Log.d(TAG, "Removed service id=$serviceTypeId")
+            _selectedServices.value = current
+        }
+    }
+
+    fun updateServiceNotes(serviceTypeId: Long, notes: String?) {
+        _selectedServices.value = _selectedServices.value.map { s ->
+            if (s.serviceType.id == serviceTypeId) s.copy(notes = notes) else s
+        }
+    }
+
+    fun updateServiceAmount(serviceTypeId: Long, amount: String?) {
+        _selectedServices.value = _selectedServices.value.map { s ->
+            if (s.serviceType.id == serviceTypeId) s.copy(amount = amount) else s
+        }
+    }
+
+    fun updatePositions(serviceTypeId: Long, positions: List<Position>) {
+        _selectedServices.value = _selectedServices.value.map { s ->
+            if (s.serviceType.id == serviceTypeId) s.copy(selectedPositions = positions) else s
+        }
+    }
+
+    fun toggleCategory(categoryId: Long) {
+        _expandedCategoryId.value = if (_expandedCategoryId.value == categoryId) null else categoryId
+    }
+
+    // ══════════════════════════════════════════════
+    // Summary fields
+    // ══════════════════════════════════════════════
+
+    fun updateDate(date: String) {
+        _serviceDate.value = date
+    }
+
+    fun updateMileage(mileage: Int?) {
+        _mileage.value = mileage
+    }
+
+    fun updateNotes(notes: String?) {
+        _generalNotes.value = notes
+    }
+
+    // ══════════════════════════════════════════════
+    // Submission
+    // ══════════════════════════════════════════════
+
+    fun submitService() {
+        val vehicleId = _selectedVehicleId.value
+        if (vehicleId == null) {
+            Log.w(TAG, "submitService called without selected vehicle")
+            _uiState.value = WizardUiState.SubmitError("Wybierz pojazd przed zapisaniem.")
+            return
+        }
+
+        val services = _selectedServices.value
+        if (services.isEmpty()) {
+            Log.w(TAG, "submitService called with no selected services")
+            _uiState.value = WizardUiState.SubmitError("Dodaj przynajmniej jedną usługę.")
+            return
+        }
+
+        val costableType = when (_vehicleTab.value) {
+            VehicleTab.TRUCKS -> "truck"
+            VehicleTab.TRAILERS -> "truck_trailer"
+        }
+
+        val items = services.map { selected ->
+            CreateServiceItemRequest(
+                serviceTypeId = selected.serviceType.id,
+                name = selected.serviceType.name,
+                notes = selected.notes,
+                amount = selected.amount,
+                positionIds = selected.selectedPositions
+                    .map { it.id }
+                    .ifEmpty { null },
+            )
+        }
+
+        val request = CreateServiceEventRequest(
+            costableType = costableType,
+            costableId = vehicleId,
+            serviceDate = _serviceDate.value,
+            mileage = _mileage.value,
+            generalNotes = _generalNotes.value,
+            items = items,
+        )
+
+        Log.d(TAG, "Submitting: costableType=$costableType, vehicleId=$vehicleId, items=${items.size}")
+        _uiState.value = WizardUiState.Submitting
+
+        viewModelScope.launch {
+            val result = repository.submitServiceEvent(request)
+            result.fold(
+                onSuccess = { event ->
+                    Log.d(TAG, "Submit success: event id=${event.id}")
+                    _uiState.value = WizardUiState.SubmitSuccess
+                    onServiceAdded?.invoke()
+                },
+                onFailure = { error ->
+                    val message = mapErrorToPolishMessage(error)
+                    Log.w(TAG, "Submit failed: ${error.javaClass.simpleName} → \"$message\"")
+                    _uiState.value = WizardUiState.SubmitError(message)
+                },
+            )
+        }
+    }
+
+    /**
+     * Restore Ready state after a submit error so the user can correct and retry.
+     */
+    fun dismissSubmitError() {
+        _uiState.value = WizardUiState.Ready(
+            trucks = _trucks,
+            trailers = _trailers,
+            serviceTypes = _serviceTypes,
+        )
+    }
+
+    // ══════════════════════════════════════════════
+    // Error mapping — Polish user-facing messages
+    // (mirrors ServiceHistoryViewModel pattern)
+    // ══════════════════════════════════════════════
+
+    private fun mapErrorToPolishMessage(exception: Throwable): String {
+        return when {
+            exception is IOException || exception is UnknownHostException ->
+                "Brak połączenia z serwerem. Sprawdź internet i spróbuj ponownie."
+
+            exception is ApiException -> when {
+                exception.code == 401 ->
+                    "Sesja wygasła. Zaloguj się ponownie."
+                exception.code == 403 ->
+                    "Brak uprawnień do dodania serwisu."
+                exception.code == 422 ->
+                    exception.apiError?.message ?: "Błąd walidacji danych. Sprawdź formularz."
+                exception.code in 500..599 ->
+                    "Błąd serwera. Spróbuj ponownie za chwilę."
+                else ->
+                    "Wystąpił nieoczekiwany błąd. Spróbuj ponownie."
+            }
+
+            exception.cause is IOException || exception.cause is UnknownHostException ->
+                "Brak połączenia z serwerem. Sprawdź internet i spróbuj ponownie."
+
+            else -> "Wystąpił nieoczekiwany błąd. Spróbuj ponownie."
+        }
+    }
+}
--- a/app/src/main/java/pl/firmatpp/itstransport/ui/service/wizard/ServiceSelectStep.kt
+++ b/app/src/main/java/pl/firmatpp/itstransport/ui/service/wizard/ServiceSelectStep.kt
@@ -0,0 +1,482 @@
+package pl.firmatpp.itstransport.ui.service.wizard
+
+import androidx.compose.animation.AnimatedVisibility
+import androidx.compose.foundation.BorderStroke
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.ExperimentalLayoutApi
+import androidx.compose.foundation.layout.FlowRow
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.items
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.ExpandLess
+import androidx.compose.material.icons.filled.ExpandMore
+import androidx.compose.material3.Button
+import androidx.compose.material3.CardDefaults
+import androidx.compose.material3.ElevatedCard
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.FilterChip
+import androidx.compose.material3.Icon
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.OutlinedButton
+import androidx.compose.material3.OutlinedCard
+import androidx.compose.material3.OutlinedTextField
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.saveable.rememberSaveable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.input.KeyboardType
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.unit.dp
+import pl.firmatpp.itstransport.data.model.Position
+import pl.firmatpp.itstransport.data.model.PositionGroup
+import pl.firmatpp.itstransport.data.model.SelectedService
+import pl.firmatpp.itstransport.data.model.ServiceCategory
+import pl.firmatpp.itstransport.data.model.ServiceType
+
+// ──────────────────────────────────────────────
+// ServiceSelectStep — Step 2 of the Add Service wizard
+//
+// Top-to-bottom:
+// 1. Selected count header
+// 2. Category cards (expand/collapse) with service type tiles
+// 3. Per-service detail (positions, notes, amount)
+// 4. Navigation buttons (Wstecz / Dalej)
+// ──────────────────────────────────────────────
+
+@OptIn(ExperimentalMaterial3Api::class, ExperimentalLayoutApi::class)
+@Composable
+fun ServiceSelectStep(
+    serviceTypes: List<ServiceType>,
+    selectedServices: List<SelectedService>,
+    expandedCategoryId: Long?,
+    vehicleTab: AddServiceViewModel.VehicleTab,
+    onToggleService: (ServiceType) -> Unit,
+    onToggleCategory: (Long) -> Unit,
+    onUpdatePositions: (serviceTypeId: Long, positions: List<Position>) -> Unit,
+    onUpdateNotes: (serviceTypeId: Long, notes: String?) -> Unit,
+    onUpdateAmount: (serviceTypeId: Long, amount: String?) -> Unit,
+    onBack: () -> Unit,
+    onNext: () -> Unit,
+    modifier: Modifier = Modifier,
+) {
+    // Group service types by category for display
+    val categorizedTypes = serviceTypes
+        .groupBy { it.category }
+        .toSortedMap(compareBy { it?.id ?: Long.MAX_VALUE })
+
+    val selectedIds = selectedServices.map { it.serviceType.id }.toSet()
+
+    Column(
+        modifier = modifier
+            .fillMaxSize()
+            .padding(horizontal = 16.dp),
+    ) {
+        Spacer(modifier = Modifier.height(8.dp))
+
+        // ── 1. Selected count header ──
+        Text(
+            text = "Wybrane usługi: ${selectedServices.size}",
+            style = MaterialTheme.typography.titleMedium,
+            fontWeight = FontWeight.Bold,
+        )
+
+        Spacer(modifier = Modifier.height(12.dp))
+
+        // ── 2. Scrollable content (categories + selected service details) ──
+        LazyColumn(
+            modifier = Modifier.weight(1f),
+            verticalArrangement = Arrangement.spacedBy(10.dp),
+        ) {
+            // Category cards
+            items(
+                items = categorizedTypes.entries.toList(),
+                key = { it.key?.id ?: -1L },
+            ) { (category, types) ->
+                CategoryCard(
+                    category = category,
+                    serviceTypes = types,
+                    selectedIds = selectedIds,
+                    isExpanded = category?.id == expandedCategoryId,
+                    vehicleTab = vehicleTab,
+                    onToggleExpand = { category?.id?.let(onToggleCategory) },
+                    onToggleService = onToggleService,
+                )
+            }
+
+            // Per-service detail sections (notes, amount, positions)
+            if (selectedServices.isNotEmpty()) {
+                item {
+                    Spacer(modifier = Modifier.height(8.dp))
+                    Text(
+                        text = "Szczegóły wybranych usług",
+                        style = MaterialTheme.typography.titleSmall,
+                        fontWeight = FontWeight.SemiBold,
+                    )
+                }
+                items(
+                    items = selectedServices,
+                    key = { it.serviceType.id },
+                ) { selected ->
+                    SelectedServiceDetail(
+                        selected = selected,
+                        vehicleTab = vehicleTab,
+                        onUpdatePositions = onUpdatePositions,
+                        onUpdateNotes = onUpdateNotes,
+                        onUpdateAmount = onUpdateAmount,
+                    )
+                }
+            }
+        }
+
+        // ── 3. Navigation buttons ──
+        Spacer(modifier = Modifier.height(12.dp))
+        NavigationButtons(
+            canGoNext = selectedServices.isNotEmpty(),
+            onBack = onBack,
+            onNext = onNext,
+        )
+        Spacer(modifier = Modifier.height(16.dp))
+    }
+}
+
+// ──────────────────────────────────────────────
+// CategoryCard — expandable card for a service category
+// ──────────────────────────────────────────────
+
+@OptIn(ExperimentalMaterial3Api::class, ExperimentalLayoutApi::class)
+@Composable
+private fun CategoryCard(
+    category: ServiceCategory?,
+    serviceTypes: List<ServiceType>,
+    selectedIds: Set<Long>,
+    isExpanded: Boolean,
+    vehicleTab: AddServiceViewModel.VehicleTab,
+    onToggleExpand: () -> Unit,
+    onToggleService: (ServiceType) -> Unit,
+) {
+    val categoryName = category?.name ?: "Inne"
+    val firstLetter = categoryName.first().uppercase()
+
+    ElevatedCard(
+        onClick = onToggleExpand,
+        modifier = Modifier.fillMaxWidth(),
+    ) {
+        Column(modifier = Modifier.padding(12.dp)) {
+            // Header row: badge + name + chevron
+            Row(
+                verticalAlignment = Alignment.CenterVertically,
+                modifier = Modifier.fillMaxWidth(),
+            ) {
+                // First-letter badge
+                Box(
+                    contentAlignment = Alignment.Center,
+                    modifier = Modifier
+                        .size(36.dp),
+                ) {
+                    Text(
+                        text = firstLetter,
+                        style = MaterialTheme.typography.titleMedium,
+                        fontWeight = FontWeight.Bold,
+                        color = MaterialTheme.colorScheme.primary,
+                    )
+                }
+
+                Spacer(modifier = Modifier.width(8.dp))
+
+                Text(
+                    text = categoryName,
+                    style = MaterialTheme.typography.titleSmall,
+                    fontWeight = FontWeight.SemiBold,
+                    modifier = Modifier.weight(1f),
+                    maxLines = 1,
+                    overflow = TextOverflow.Ellipsis,
+                )
+
+                Icon(
+                    imageVector = if (isExpanded) Icons.Filled.ExpandLess else Icons.Filled.ExpandMore,
+                    contentDescription = if (isExpanded) "Zwiń" else "Rozwiń",
+                )
+            }
+
+            // Expanded content: service type tiles
+            AnimatedVisibility(visible = isExpanded) {
+                FlowRow(
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .padding(top = 8.dp),
+                    horizontalArrangement = Arrangement.spacedBy(8.dp),
+                    verticalArrangement = Arrangement.spacedBy(8.dp),
+                ) {
+                    serviceTypes.forEach { serviceType ->
+                        ServiceTypeTile(
+                            serviceType = serviceType,
+                            isSelected = serviceType.id in selectedIds,
+                            onClick = { onToggleService(serviceType) },
+                        )
+                    }
+                }
+            }
+        }
+    }
+}
+
+// ──────────────────────────────────────────────
+// ServiceTypeTile — tappable chip for a single service type
+// ──────────────────────────────────────────────
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+private fun ServiceTypeTile(
+    serviceType: ServiceType,
+    isSelected: Boolean,
+    onClick: () -> Unit,
+) {
+    val borderStroke = if (isSelected) {
+        BorderStroke(2.dp, MaterialTheme.colorScheme.primary)
+    } else {
+        BorderStroke(1.dp, MaterialTheme.colorScheme.outline)
+    }
+
+    val containerColor = if (isSelected) {
+        MaterialTheme.colorScheme.primaryContainer
+    } else {
+        MaterialTheme.colorScheme.surface
+    }
+
+    OutlinedCard(
+        onClick = onClick,
+        border = borderStroke,
+        colors = CardDefaults.outlinedCardColors(containerColor = containerColor),
+    ) {
+        Text(
+            text = serviceType.name ?: "—",
+            style = MaterialTheme.typography.bodyMedium,
+            modifier = Modifier.padding(horizontal = 12.dp, vertical = 8.dp),
+            maxLines = 2,
+            overflow = TextOverflow.Ellipsis,
+            color = if (isSelected) {
+                MaterialTheme.colorScheme.onPrimaryContainer
+            } else {
+                MaterialTheme.colorScheme.onSurface
+            },
+        )
+    }
+}
+
+// ──────────────────────────────────────────────
+// SelectedServiceDetail — per-service notes, amount, positions
+// ──────────────────────────────────────────────
+
+@OptIn(ExperimentalMaterial3Api::class, ExperimentalLayoutApi::class)
+@Composable
+private fun SelectedServiceDetail(
+    selected: SelectedService,
+    vehicleTab: AddServiceViewModel.VehicleTab,
+    onUpdatePositions: (serviceTypeId: Long, positions: List<Position>) -> Unit,
+    onUpdateNotes: (serviceTypeId: Long, notes: String?) -> Unit,
+    onUpdateAmount: (serviceTypeId: Long, amount: String?) -> Unit,
+) {
+    val serviceTypeId = selected.serviceType.id
+    val expanded = rememberSaveable { mutableStateOf(true) }
+
+    OutlinedCard(
+        modifier = Modifier.fillMaxWidth(),
+    ) {
+        Column(modifier = Modifier.padding(12.dp)) {
+            // Header row with expand toggle
+            Row(
+                verticalAlignment = Alignment.CenterVertically,
+                modifier = Modifier.fillMaxWidth(),
+            ) {
+                Text(
+                    text = selected.serviceType.name ?: "—",
+                    style = MaterialTheme.typography.titleSmall,
+                    fontWeight = FontWeight.SemiBold,
+                    modifier = Modifier.weight(1f),
+                    maxLines = 1,
+                    overflow = TextOverflow.Ellipsis,
+                )
+                androidx.compose.material3.IconButton(
+                    onClick = { expanded.value = !expanded.value },
+                ) {
+                    Icon(
+                        imageVector = if (expanded.value) Icons.Filled.ExpandLess else Icons.Filled.ExpandMore,
+                        contentDescription = if (expanded.value) "Zwiń" else "Rozwiń",
+                    )
+                }
+            }
+
+            AnimatedVisibility(visible = expanded.value) {
+                Column {
+                    // Position pickers (if service type has position groups)
+                    val positionGroups = selected.serviceType.positionGroups
+                    if (!positionGroups.isNullOrEmpty()) {
+                        val filteredGroups = filterPositionGroups(positionGroups, vehicleTab)
+                        if (filteredGroups.isNotEmpty()) {
+                            PositionPicker(
+                                positionGroups = filteredGroups,
+                                selectedPositions = selected.selectedPositions,
+                                onPositionsChanged = { positions ->
+                                    onUpdatePositions(serviceTypeId, positions)
+                                },
+                            )
+                            Spacer(modifier = Modifier.height(8.dp))
+                        }
+                    }
+
+                    // Notes field
+                    OutlinedTextField(
+                        value = selected.notes ?: "",
+                        onValueChange = { value ->
+                            onUpdateNotes(serviceTypeId, value.ifBlank { null })
+                        },
+                        placeholder = { Text("Uwagi...") },
+                        singleLine = false,
+                        maxLines = 3,
+                        modifier = Modifier.fillMaxWidth(),
+                    )
+
+                    Spacer(modifier = Modifier.height(8.dp))
+
+                    // Amount field
+                    OutlinedTextField(
+                        value = selected.amount ?: "",
+                        onValueChange = { value ->
+                            onUpdateAmount(serviceTypeId, value.ifBlank { null })
+                        },
+                        placeholder = { Text("Kwota") },
+                        singleLine = true,
+                        keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Decimal),
+                        modifier = Modifier.fillMaxWidth(),
+                    )
+                }
+            }
+        }
+    }
+}
+
+// ──────────────────────────────────────────────
+// PositionPicker — FilterChips grouped by PositionGroup
+// ──────────────────────────────────────────────
+
+@OptIn(ExperimentalMaterial3Api::class, ExperimentalLayoutApi::class)
+@Composable
+private fun PositionPicker(
+    positionGroups: List<PositionGroup>,
+    selectedPositions: List<Position>,
+    onPositionsChanged: (List<Position>) -> Unit,
+) {
+    val selectedIds = selectedPositions.map { it.id }.toSet()
+
+    Column {
+        Text(
+            text = "Pozycje",
+            style = MaterialTheme.typography.labelMedium,
+            color = MaterialTheme.colorScheme.onSurfaceVariant,
+        )
+        Spacer(modifier = Modifier.height(4.dp))
+
+        positionGroups.forEach { group ->
+            if (group.positions.isNullOrEmpty()) return@forEach
+
+            Text(
+                text = group.name ?: "—",
+                style = MaterialTheme.typography.labelSmall,
+                color = MaterialTheme.colorScheme.onSurfaceVariant,
+                modifier = Modifier.padding(top = 4.dp, bottom = 2.dp),
+            )
+
+            FlowRow(
+                horizontalArrangement = Arrangement.spacedBy(6.dp),
+                verticalArrangement = Arrangement.spacedBy(4.dp),
+            ) {
+                group.positions.forEach { position ->
+                    val isSelected = position.id in selectedIds
+                    FilterChip(
+                        selected = isSelected,
+                        onClick = {
+                            val newPositions = if (isSelected) {
+                                selectedPositions.filter { it.id != position.id }
+                            } else {
+                                selectedPositions + position
+                            }
+                            onPositionsChanged(newPositions)
+                        },
+                        label = {
+                            Text(
+                                text = position.name ?: "—",
+                                style = MaterialTheme.typography.bodySmall,
+                            )
+                        },
+                    )
+                }
+            }
+        }
+    }
+}
+
+// ──────────────────────────────────────────────
+// NavigationButtons — Wstecz / Dalej
+// ──────────────────────────────────────────────
+
+@Composable
+private fun NavigationButtons(
+    canGoNext: Boolean,
+    onBack: () -> Unit,
+    onNext: () -> Unit,
+) {
+    Row(
+        modifier = Modifier.fillMaxWidth(),
+        horizontalArrangement = Arrangement.spacedBy(12.dp),
+    ) {
+        OutlinedButton(
+            onClick = onBack,
+            modifier = Modifier
+                .weight(1f)
+                .height(52.dp),
+        ) {
+            Text("Wstecz")
+        }
+        Button(
+            onClick = onNext,
+            enabled = canGoNext,
+            modifier = Modifier
+                .weight(1f)
+                .height(52.dp),
+        ) {
+            Text("Dalej")
+        }
+    }
+}
+
+// ──────────────────────────────────────────────
+// Utility — filter position groups by vehicle type
+// ──────────────────────────────────────────────
+
+private fun filterPositionGroups(
+    groups: List<PositionGroup>,
+    vehicleTab: AddServiceViewModel.VehicleTab,
+): List<PositionGroup> {
+    val tabType = when (vehicleTab) {
+        AddServiceViewModel.VehicleTab.TRUCKS -> "truck"
+        AddServiceViewModel.VehicleTab.TRAILERS -> "truck_trailer"
+    }
+    return groups.filter { group ->
+        val vt = group.vehicleType
+        vt == null || vt == "all" || vt == tabType
+    }
+}
--- a/app/src/main/java/pl/firmatpp/itstransport/ui/service/wizard/SummaryStep.kt
+++ b/app/src/main/java/pl/firmatpp/itstransport/ui/service/wizard/SummaryStep.kt
@@ -0,0 +1,403 @@
+package pl.firmatpp.itstransport.ui.service.wizard
+
+import androidx.compose.animation.AnimatedVisibility
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.items
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.CalendarMonth
+import androidx.compose.material.icons.filled.ErrorOutline
+import androidx.compose.material3.Button
+import androidx.compose.material3.CardDefaults
+import androidx.compose.material3.CircularProgressIndicator
+import androidx.compose.material3.DatePicker
+import androidx.compose.material3.DatePickerDialog
+import androidx.compose.material3.ElevatedCard
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.Icon
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.OutlinedButton
+import androidx.compose.material3.OutlinedCard
+import androidx.compose.material3.OutlinedTextField
+import androidx.compose.material3.Text
+import androidx.compose.material3.TextButton
+import androidx.compose.material3.rememberDatePickerState
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.input.KeyboardType
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.unit.dp
+import pl.firmatpp.itstransport.data.model.SelectedService
+import pl.firmatpp.itstransport.data.model.Trailer
+import pl.firmatpp.itstransport.data.model.Truck
+import java.time.Instant
+import java.time.ZoneId
+
+// ──────────────────────────────────────────────
+// SummaryStep — Step 3 of the Add Service wizard
+//
+// Review screen before submission:
+// 1. Date picker (Data serwisu)
+// 2. Mileage input (Przebieg km, optional)
+// 3. General notes (Uwagi ogólne, optional)
+// 4. Selected vehicle summary card
+// 5. Selected services list
+// 6. Navigation: Wstecz / Zapisz serwis
+// 7. Error display with retry
+// ──────────────────────────────────────────────
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun SummaryStep(
+    serviceDate: String,
+    mileage: Int?,
+    generalNotes: String?,
+    selectedVehicleId: Long?,
+    vehicleTab: AddServiceViewModel.VehicleTab,
+    trucks: List<Truck>,
+    trailers: List<Trailer>,
+    selectedServices: List<SelectedService>,
+    isSubmitting: Boolean,
+    submitError: String?,
+    onDateChange: (String) -> Unit,
+    onMileageChange: (Int?) -> Unit,
+    onNotesChange: (String?) -> Unit,
+    onBack: () -> Unit,
+    onSubmit: () -> Unit,
+    onDismissError: () -> Unit,
+    modifier: Modifier = Modifier,
+) {
+    var showDatePicker by remember { mutableStateOf(false) }
+
+    // Resolve selected vehicle for display
+    val vehiclePlate: String
+    val vehicleModel: String
+    when (vehicleTab) {
+        AddServiceViewModel.VehicleTab.TRUCKS -> {
+            val truck = trucks.find { it.id == selectedVehicleId }
+            vehiclePlate = truck?.licensePlate ?: "—"
+            vehicleModel = listOfNotNull(truck?.brand, truck?.model)
+                .joinToString(" ").ifBlank { truck?.name ?: "—" }
+        }
+        AddServiceViewModel.VehicleTab.TRAILERS -> {
+            val trailer = trailers.find { it.id == selectedVehicleId }
+            vehiclePlate = trailer?.licensePlate ?: "—"
+            vehicleModel = listOfNotNull(trailer?.brand, trailer?.model)
+                .joinToString(" ").ifBlank { trailer?.name ?: "—" }
+        }
+    }
+
+    Column(
+        modifier = modifier
+            .fillMaxSize()
+            .padding(horizontal = 16.dp),
+    ) {
+        LazyColumn(
+            modifier = Modifier.weight(1f),
+            verticalArrangement = Arrangement.spacedBy(12.dp),
+        ) {
+            item {
+                Spacer(modifier = Modifier.height(4.dp))
+
+                Text(
+                    text = "Podsumowanie",
+                    style = MaterialTheme.typography.titleMedium,
+                    fontWeight = FontWeight.Bold,
+                )
+            }
+
+            // ── 1. Date picker ──
+            item {
+                OutlinedTextField(
+                    value = serviceDate,
+                    onValueChange = {},
+                    readOnly = true,
+                    label = { Text("Data serwisu") },
+                    trailingIcon = {
+                        TextButton(onClick = { showDatePicker = true }) {
+                            Icon(
+                                imageVector = Icons.Filled.CalendarMonth,
+                                contentDescription = "Wybierz datę",
+                            )
+                        }
+                    },
+                    modifier = Modifier.fillMaxWidth(),
+                )
+            }
+
+            // ── 2. Mileage ──
+            item {
+                OutlinedTextField(
+                    value = mileage?.toString() ?: "",
+                    onValueChange = { value ->
+                        onMileageChange(value.filter { it.isDigit() }.toIntOrNull())
+                    },
+                    label = { Text("Przebieg (km)") },
+                    singleLine = true,
+                    keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Number),
+                    modifier = Modifier.fillMaxWidth(),
+                )
+            }
+
+            // ── 3. General notes ──
+            item {
+                OutlinedTextField(
+                    value = generalNotes ?: "",
+                    onValueChange = { value ->
+                        onNotesChange(value.ifBlank { null })
+                    },
+                    label = { Text("Uwagi ogólne") },
+                    singleLine = false,
+                    maxLines = 4,
+                    modifier = Modifier.fillMaxWidth(),
+                )
+            }
+
+            // ── 4. Selected vehicle card ──
+            item {
+                Text(
+                    text = "Pojazd",
+                    style = MaterialTheme.typography.titleSmall,
+                    fontWeight = FontWeight.SemiBold,
+                    modifier = Modifier.padding(top = 4.dp),
+                )
+                Spacer(modifier = Modifier.height(4.dp))
+                ElevatedCard(
+                    modifier = Modifier.fillMaxWidth(),
+                    colors = CardDefaults.elevatedCardColors(
+                        containerColor = MaterialTheme.colorScheme.primaryContainer,
+                    ),
+                ) {
+                    Column(modifier = Modifier.padding(12.dp)) {
+                        Text(
+                            text = vehiclePlate,
+                            style = MaterialTheme.typography.titleMedium,
+                            fontWeight = FontWeight.Bold,
+                            color = MaterialTheme.colorScheme.onPrimaryContainer,
+                        )
+                        Text(
+                            text = vehicleModel,
+                            style = MaterialTheme.typography.bodySmall,
+                            color = MaterialTheme.colorScheme.onPrimaryContainer,
+                        )
+                    }
+                }
+            }
+
+            // ── 5. Selected services ──
+            item {
+                Text(
+                    text = "Usługi (${selectedServices.size})",
+                    style = MaterialTheme.typography.titleSmall,
+                    fontWeight = FontWeight.SemiBold,
+                    modifier = Modifier.padding(top = 4.dp),
+                )
+            }
+
+            items(
+                items = selectedServices,
+                key = { it.serviceType.id },
+            ) { selected ->
+                ServiceSummaryCard(selected = selected)
+            }
+        }
+
+        // ── Error display ──
+        AnimatedVisibility(visible = submitError != null) {
+            OutlinedCard(
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .padding(bottom = 8.dp),
+                colors = CardDefaults.outlinedCardColors(
+                    containerColor = MaterialTheme.colorScheme.errorContainer,
+                ),
+            ) {
+                Row(
+                    modifier = Modifier.padding(12.dp),
+                    verticalAlignment = Alignment.CenterVertically,
+                    horizontalArrangement = Arrangement.spacedBy(8.dp),
+                ) {
+                    Icon(
+                        imageVector = Icons.Filled.ErrorOutline,
+                        contentDescription = null,
+                        tint = MaterialTheme.colorScheme.error,
+                        modifier = Modifier.size(20.dp),
+                    )
+                    Text(
+                        text = submitError ?: "",
+                        style = MaterialTheme.typography.bodySmall,
+                        color = MaterialTheme.colorScheme.onErrorContainer,
+                        modifier = Modifier.weight(1f),
+                    )
+                    TextButton(onClick = onDismissError) {
+                        Text("Ponów")
+                    }
+                }
+            }
+        }
+
+        // ── 6. Navigation buttons ──
+        Row(
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(bottom = 16.dp),
+            horizontalArrangement = Arrangement.spacedBy(12.dp),
+        ) {
+            OutlinedButton(
+                onClick = onBack,
+                enabled = !isSubmitting,
+                modifier = Modifier
+                    .weight(1f)
+                    .height(52.dp),
+            ) {
+                Text("Wstecz")
+            }
+            Button(
+                onClick = onSubmit,
+                enabled = !isSubmitting,
+                modifier = Modifier
+                    .weight(1f)
+                    .height(52.dp),
+            ) {
+                if (isSubmitting) {
+                    CircularProgressIndicator(
+                        modifier = Modifier.size(20.dp),
+                        strokeWidth = 2.dp,
+                        color = MaterialTheme.colorScheme.onPrimary,
+                    )
+                } else {
+                    Text("Zapisz serwis")
+                }
+            }
+        }
+    }
+
+    // ── Date picker dialog (K009 pattern) ──
+    if (showDatePicker) {
+        DatePickerDialogWrapper(
+            onDateSelected = { onDateChange(it) },
+            onDismiss = { showDatePicker = false },
+        )
+    }
+}
+
+// ──────────────────────────────────────────────
+// DatePickerDialogWrapper — reuses K009 pattern
+// from ServiceHistoryScreen
+// ──────────────────────────────────────────────
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+private fun DatePickerDialogWrapper(
+    onDateSelected: (String) -> Unit,
+    onDismiss: () -> Unit,
+) {
+    val datePickerState = rememberDatePickerState()
+
+    DatePickerDialog(
+        onDismissRequest = onDismiss,
+        confirmButton = {
+            TextButton(
+                onClick = {
+                    datePickerState.selectedDateMillis?.let { millis ->
+                        val date = Instant.ofEpochMilli(millis)
+                            .atZone(ZoneId.systemDefault())
+                            .toLocalDate()
+                            .toString()
+                        onDateSelected(date)
+                    }
+                    onDismiss()
+                },
+            ) {
+                Text("OK")
+            }
+        },
+        dismissButton = {
+            TextButton(onClick = onDismiss) {
+                Text("Anuluj")
+            }
+        },
+    ) {
+        DatePicker(state = datePickerState)
+    }
+}
+
+// ──────────────────────────────────────────────
+// ServiceSummaryCard — single service in review
+// ──────────────────────────────────────────────
+
+@Composable
+private fun ServiceSummaryCard(selected: SelectedService) {
+    OutlinedCard(
+        modifier = Modifier.fillMaxWidth(),
+    ) {
+        Column(modifier = Modifier.padding(12.dp)) {
+            // Service name + category
+            Text(
+                text = selected.serviceType.name ?: "—",
+                style = MaterialTheme.typography.titleSmall,
+                fontWeight = FontWeight.SemiBold,
+                maxLines = 1,
+                overflow = TextOverflow.Ellipsis,
+            )
+            selected.serviceType.category?.name?.let { catName ->
+                Text(
+                    text = catName,
+                    style = MaterialTheme.typography.labelSmall,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                )
+            }
+
+            // Amount
+            if (!selected.amount.isNullOrBlank()) {
+                Text(
+                    text = "Kwota: ${selected.amount}",
+                    style = MaterialTheme.typography.bodySmall,
+                    modifier = Modifier.padding(top = 4.dp),
+                )
+            }
+
+            // Notes
+            if (!selected.notes.isNullOrBlank()) {
+                Text(
+                    text = "Uwagi: ${selected.notes}",
+                    style = MaterialTheme.typography.bodySmall,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    modifier = Modifier.padding(top = 2.dp),
+                    maxLines = 2,
+                    overflow = TextOverflow.Ellipsis,
+                )
+            }
+
+            // Positions
+            if (selected.selectedPositions.isNotEmpty()) {
+                val positionNames = selected.selectedPositions
+                    .mapNotNull { it.name }
+                    .joinToString(", ")
+                Text(
+                    text = "Pozycje: $positionNames",
+                    style = MaterialTheme.typography.bodySmall,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    modifier = Modifier.padding(top = 2.dp),
+                    maxLines = 2,
+                    overflow = TextOverflow.Ellipsis,
+                )
+            }
+        }
+    }
+}
--- a/app/src/main/java/pl/firmatpp/itstransport/ui/service/wizard/VehicleSelectStep.kt
+++ b/app/src/main/java/pl/firmatpp/itstransport/ui/service/wizard/VehicleSelectStep.kt
@@ -0,0 +1,286 @@
+package pl.firmatpp.itstransport.ui.service.wizard
+
+import androidx.compose.foundation.BorderStroke
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.PaddingValues
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.lazy.grid.GridCells
+import androidx.compose.foundation.lazy.grid.LazyVerticalGrid
+import androidx.compose.foundation.lazy.grid.items
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Close
+import androidx.compose.material.icons.filled.Search
+import androidx.compose.material3.Button
+import androidx.compose.material3.CardDefaults
+import androidx.compose.material3.ElevatedCard
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.FilterChip
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.OutlinedTextField
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.dp
+import pl.firmatpp.itstransport.data.model.Trailer
+import pl.firmatpp.itstransport.data.model.Truck
+
+// ──────────────────────────────────────────────
+// Vehicle representation used by the grid — unifies
+// Truck and Trailer into a single renderable item.
+// ──────────────────────────────────────────────
+
+private data class VehicleItem(
+    val id: Long,
+    val licensePlate: String,
+    val modelName: String,
+    val mileageLabel: String?,
+)
+
+private fun Truck.toItem() = VehicleItem(
+    id = id,
+    licensePlate = licensePlate ?: "—",
+    modelName = listOfNotNull(brand, model).joinToString(" ").ifBlank { name ?: "—" },
+    mileageLabel = mileage?.let { "Przebieg: $it km" },
+)
+
+private fun Trailer.toItem() = VehicleItem(
+    id = id,
+    licensePlate = licensePlate ?: "—",
+    modelName = listOfNotNull(brand, model).joinToString(" ").ifBlank { name ?: "—" },
+    mileageLabel = null, // trailers don't have mileage
+)
+
+// ──────────────────────────────────────────────
+// VehicleSelectStep — Step 1 of the Add Service wizard
+// ──────────────────────────────────────────────
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun VehicleSelectStep(
+    trucks: List<Truck>,
+    trailers: List<Trailer>,
+    vehicleTab: AddServiceViewModel.VehicleTab,
+    searchQuery: String,
+    selectedVehicleId: Long?,
+    onTabChange: (AddServiceViewModel.VehicleTab) -> Unit,
+    onSearchChange: (String) -> Unit,
+    onVehicleSelect: (Long) -> Unit,
+    onNext: () -> Unit,
+    modifier: Modifier = Modifier,
+) {
+    // Build the filtered item list based on the active tab and search query
+    val items: List<VehicleItem> = when (vehicleTab) {
+        AddServiceViewModel.VehicleTab.TRUCKS -> trucks.map { it.toItem() }
+        AddServiceViewModel.VehicleTab.TRAILERS -> trailers.map { it.toItem() }
+    }.let { list ->
+        if (searchQuery.isBlank()) list
+        else {
+            val q = searchQuery.trim().lowercase()
+            list.filter { item ->
+                item.licensePlate.lowercase().contains(q) ||
+                    item.modelName.lowercase().contains(q)
+            }
+        }
+    }
+
+    Column(
+        modifier = modifier
+            .fillMaxSize()
+            .padding(horizontal = 16.dp),
+    ) {
+        Spacer(modifier = Modifier.height(8.dp))
+
+        // ── 1. Tab pills row ──
+        TabPillsRow(
+            vehicleTab = vehicleTab,
+            onTabChange = onTabChange,
+        )
+
+        Spacer(modifier = Modifier.height(12.dp))
+
+        // ── 2. Search bar ──
+        VehicleSearchBar(
+            query = searchQuery,
+            onQueryChange = onSearchChange,
+        )
+
+        Spacer(modifier = Modifier.height(12.dp))
+
+        // ── 3. Vehicle grid ──
+        LazyVerticalGrid(
+            columns = GridCells.Fixed(2),
+            contentPadding = PaddingValues(vertical = 4.dp),
+            verticalArrangement = Arrangement.spacedBy(10.dp),
+            horizontalArrangement = Arrangement.spacedBy(10.dp),
+            modifier = Modifier.weight(1f),
+        ) {
+            items(
+                items = items,
+                key = { it.id },
+            ) { vehicle ->
+                VehicleTile(
+                    vehicle = vehicle,
+                    isSelected = vehicle.id == selectedVehicleId,
+                    onClick = { onVehicleSelect(vehicle.id) },
+                )
+            }
+        }
+
+        // ── 4. "Dalej" button ──
+        Spacer(modifier = Modifier.height(12.dp))
+        Button(
+            onClick = onNext,
+            enabled = selectedVehicleId != null,
+            modifier = Modifier
+                .fillMaxWidth()
+                .height(52.dp), // large touch target (R009)
+        ) {
+            Text("Dalej")
+        }
+        Spacer(modifier = Modifier.height(16.dp))
+    }
+}
+
+// ── Tab pills ──
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+private fun TabPillsRow(
+    vehicleTab: AddServiceViewModel.VehicleTab,
+    onTabChange: (AddServiceViewModel.VehicleTab) -> Unit,
+) {
+    Row(
+        horizontalArrangement = Arrangement.spacedBy(8.dp),
+    ) {
+        FilterChip(
+            selected = vehicleTab == AddServiceViewModel.VehicleTab.TRUCKS,
+            onClick = { onTabChange(AddServiceViewModel.VehicleTab.TRUCKS) },
+            label = { Text("Ciągniki") },
+        )
+        FilterChip(
+            selected = vehicleTab == AddServiceViewModel.VehicleTab.TRAILERS,
+            onClick = { onTabChange(AddServiceViewModel.VehicleTab.TRAILERS) },
+            label = { Text("Naczepy") },
+        )
+    }
+}
+
+// ── Search bar ──
+
+@Composable
+private fun VehicleSearchBar(
+    query: String,
+    onQueryChange: (String) -> Unit,
+) {
+    OutlinedTextField(
+        value = query,
+        onValueChange = onQueryChange,
+        placeholder = { Text("Szukaj pojazd...") },
+        leadingIcon = {
+            Icon(
+                imageVector = Icons.Filled.Search,
+                contentDescription = "Szukaj",
+            )
+        },
+        trailingIcon = {
+            if (query.isNotEmpty()) {
+                IconButton(onClick = { onQueryChange("") }) {
+                    Icon(
+                        imageVector = Icons.Filled.Close,
+                        contentDescription = "Wyczyść",
+                    )
+                }
+            }
+        },
+        singleLine = true,
+        modifier = Modifier.fillMaxWidth(),
+    )
+}
+
+// ── Vehicle tile ──
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+private fun VehicleTile(
+    vehicle: VehicleItem,
+    isSelected: Boolean,
+    onClick: () -> Unit,
+) {
+    val borderStroke = if (isSelected) {
+        BorderStroke(2.dp, MaterialTheme.colorScheme.primary)
+    } else {
+        null
+    }
+
+    val containerColor = if (isSelected) {
+        MaterialTheme.colorScheme.primaryContainer
+    } else {
+        MaterialTheme.colorScheme.surface
+    }
+
+    ElevatedCard(
+        onClick = onClick,
+        modifier = Modifier
+            .fillMaxWidth()
+            .height(110.dp), // large touch target for workshop use (R009)
+        colors = CardDefaults.elevatedCardColors(
+            containerColor = containerColor,
+        ),
+        border = borderStroke,
+    ) {
+        Column(
+            modifier = Modifier
+                .padding(12.dp)
+                .fillMaxSize(),
+            verticalArrangement = Arrangement.SpaceBetween,
+        ) {
+            // License plate — large, bold
+            Text(
+                text = vehicle.licensePlate,
+                style = MaterialTheme.typography.titleMedium,
+                fontWeight = FontWeight.Bold,
+                color = if (isSelected) {
+                    MaterialTheme.colorScheme.onPrimaryContainer
+                } else {
+                    MaterialTheme.colorScheme.onSurface
+                },
+                maxLines = 1,
+            )
+
+            // Model name — smaller
+            Text(
+                text = vehicle.modelName,
+                style = MaterialTheme.typography.bodySmall,
+                color = if (isSelected) {
+                    MaterialTheme.colorScheme.onPrimaryContainer
+                } else {
+                    MaterialTheme.colorScheme.onSurfaceVariant
+                },
+                maxLines = 1,
+            )
+
+            // Mileage — trucks only
+            if (vehicle.mileageLabel != null) {
+                Text(
+                    text = vehicle.mileageLabel,
+                    style = MaterialTheme.typography.labelSmall,
+                    color = if (isSelected) {
+                        MaterialTheme.colorScheme.onPrimaryContainer
+                    } else {
+                        MaterialTheme.colorScheme.onSurfaceVariant
+                    },
+                    maxLines = 1,
+                )
+            }
+        }
+    }
+}
--- a/app/src/main/java/pl/firmatpp/itstransport/ui/theme/Color.kt
+++ b/app/src/main/java/pl/firmatpp/itstransport/ui/theme/Color.kt
@@ -0,0 +1,53 @@
+package pl.firmatpp.itstransport.ui.theme
+
+import androidx.compose.ui.graphics.Color
+
+// ITS Transport brand — teal primary matching web frontend teal-600
+val Teal600 = Color(0xFF0D9488)
+val Teal700 = Color(0xFF0F766E)
+val Teal800 = Color(0xFF115E59)
+val Teal50 = Color(0xFFF0FDFA)
+val Teal100 = Color(0xFFCCFBF1)
+
+// Secondary — slate tones for professional look
+val Slate600 = Color(0xFF475569)
+val Slate700 = Color(0xFF334155)
+val Slate50 = Color(0xFFF8FAFC)
+val Slate100 = Color(0xFFF1F5F9)
+
+// Tertiary — amber accent
+val Amber600 = Color(0xFFD97706)
+val Amber100 = Color(0xFFFEF3C7)
+
+// Error
+val Red600 = Color(0xFFDC2626)
+val Red50 = Color(0xFFFEF2F2)
+
+// Light scheme colors
+val LightPrimary = Teal600
+val LightOnPrimary = Color.White
+val LightPrimaryContainer = Teal100
+val LightOnPrimaryContainer = Teal800
+
+val LightSecondary = Slate600
+val LightOnSecondary = Color.White
+val LightSecondaryContainer = Slate100
+val LightOnSecondaryContainer = Slate700
+
+val LightTertiary = Amber600
+val LightOnTertiary = Color.White
+val LightTertiaryContainer = Amber100
+val LightOnTertiaryContainer = Color(0xFF78350F)
+
+val LightError = Red600
+val LightOnError = Color.White
+val LightErrorContainer = Red50
+val LightOnErrorContainer = Color(0xFF991B1B)
+
+val LightBackground = Color(0xFFFAFAFA)
+val LightOnBackground = Color(0xFF1C1B1F)
+val LightSurface = Color.White
+val LightOnSurface = Color(0xFF1C1B1F)
+val LightSurfaceVariant = Slate50
+val LightOnSurfaceVariant = Slate600
+val LightOutline = Color(0xFFCBD5E1)
--- a/app/src/main/java/pl/firmatpp/itstransport/ui/theme/Theme.kt
+++ b/app/src/main/java/pl/firmatpp/itstransport/ui/theme/Theme.kt
@@ -0,0 +1,54 @@
+package pl.firmatpp.itstransport.ui.theme
+
+import android.os.Build
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.dynamicLightColorScheme
+import androidx.compose.material3.lightColorScheme
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.platform.LocalContext
+
+private val LightColors = lightColorScheme(
+    primary = LightPrimary,
+    onPrimary = LightOnPrimary,
+    primaryContainer = LightPrimaryContainer,
+    onPrimaryContainer = LightOnPrimaryContainer,
+    secondary = LightSecondary,
+    onSecondary = LightOnSecondary,
+    secondaryContainer = LightSecondaryContainer,
+    onSecondaryContainer = LightOnSecondaryContainer,
+    tertiary = LightTertiary,
+    onTertiary = LightOnTertiary,
+    tertiaryContainer = LightTertiaryContainer,
+    onTertiaryContainer = LightOnTertiaryContainer,
+    error = LightError,
+    onError = LightOnError,
+    errorContainer = LightErrorContainer,
+    onErrorContainer = LightOnErrorContainer,
+    background = LightBackground,
+    onBackground = LightOnBackground,
+    surface = LightSurface,
+    onSurface = LightOnSurface,
+    surfaceVariant = LightSurfaceVariant,
+    onSurfaceVariant = LightOnSurfaceVariant,
+    outline = LightOutline,
+)
+
+@Composable
+fun ITSTransportTheme(
+    dynamicColor: Boolean = true,
+    content: @Composable () -> Unit,
+) {
+    val colorScheme = when {
+        dynamicColor && Build.VERSION.SDK_INT >= Build.VERSION_CODES.S -> {
+            dynamicLightColorScheme(LocalContext.current)
+        }
+        else -> LightColors
+    }
+
+    MaterialTheme(
+        colorScheme = colorScheme,
+        typography = Typography,
+        content = content,
+    )
+}
--- a/app/src/main/java/pl/firmatpp/itstransport/ui/theme/Type.kt
+++ b/app/src/main/java/pl/firmatpp/itstransport/ui/theme/Type.kt
@@ -0,0 +1,73 @@
+package pl.firmatpp.itstransport.ui.theme
+
+import androidx.compose.material3.Typography
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.sp
+
+val Typography = Typography(
+    displayLarge = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Normal,
+        fontSize = 57.sp,
+        lineHeight = 64.sp,
+        letterSpacing = (-0.25).sp,
+    ),
+    headlineLarge = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Normal,
+        fontSize = 32.sp,
+        lineHeight = 40.sp,
+        letterSpacing = 0.sp,
+    ),
+    headlineMedium = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Normal,
+        fontSize = 28.sp,
+        lineHeight = 36.sp,
+        letterSpacing = 0.sp,
+    ),
+    titleLarge = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Bold,
+        fontSize = 22.sp,
+        lineHeight = 28.sp,
+        letterSpacing = 0.sp,
+    ),
+    titleMedium = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Medium,
+        fontSize = 16.sp,
+        lineHeight = 24.sp,
+        letterSpacing = 0.15.sp,
+    ),
+    bodyLarge = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Normal,
+        fontSize = 16.sp,
+        lineHeight = 24.sp,
+        letterSpacing = 0.5.sp,
+    ),
+    bodyMedium = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Normal,
+        fontSize = 14.sp,
+        lineHeight = 20.sp,
+        letterSpacing = 0.25.sp,
+    ),
+    labelLarge = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Medium,
+        fontSize = 14.sp,
+        lineHeight = 20.sp,
+        letterSpacing = 0.1.sp,
+    ),
+    labelSmall = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Medium,
+        fontSize = 11.sp,
+        lineHeight = 16.sp,
+        letterSpacing = 0.5.sp,
+    ),
+)
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="app_name">ITS Transport</string>
+</resources>