diff --git a/Android/app/build.gradle.kts b/Android/app/build.gradle.kts
new file mode 100644
index 0000000..a23ba30
--- /dev/null
+++ b/Android/app/build.gradle.kts
@@ -0,0 +1,74 @@
+plugins {
+    id("com.android.application")
+    id("org.jetbrains.kotlin.android")
+}
+
+android {
+    namespace = "com.example.mathseduc"
+    compileSdk = 34
+
+    defaultConfig {
+        applicationId = "com.example.mathseduc"
+        minSdk = 21
+        targetSdk = 34
+        versionCode = 1
+        versionName = "1.0"
+
+        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
+        vectorDrawables {
+            useSupportLibrary = true
+        }
+    }
+
+    buildTypes {
+        release {
+            isMinifyEnabled = false
+            proguardFiles(
+                getDefaultProguardFile("proguard-android-optimize.txt"),
+                "proguard-rules.pro"
+            )
+        }
+    }
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_1_8
+        targetCompatibility = JavaVersion.VERSION_1_8
+    }
+    kotlinOptions {
+        jvmTarget = "1.8"
+    }
+    buildFeatures {
+        compose = true
+    }
+    composeOptions {
+        kotlinCompilerExtensionVersion = "1.5.1"
+    }
+    packaging {
+        resources {
+            excludes += "/META-INF/{AL2.0,LGPL2.1}"
+        }
+    }
+}
+
+dependencies {
+
+    implementation("androidx.core:core-ktx:1.12.0")
+    implementation("androidx.lifecycle:lifecycle-runtime-ktx:2.6.1")
+    implementation("androidx.activity:activity-compose:1.7.0")
+    implementation(platform("androidx.compose:compose-bom:2023.08.00"))
+    implementation("androidx.compose.ui:ui")
+    implementation("androidx.compose.ui:ui-graphics")
+    implementation("androidx.compose.ui:ui-tooling-preview")
+    implementation("androidx.compose.material3:material3")
+    testImplementation("junit:junit:4.13.2")
+    androidTestImplementation("androidx.test.ext:junit:1.1.5")
+    androidTestImplementation("androidx.test.espresso:espresso-core:3.5.1")
+    androidTestImplementation(platform("androidx.compose:compose-bom:2023.08.00"))
+    androidTestImplementation("androidx.compose.ui:ui-test-junit4")
+    debugImplementation("androidx.compose.ui:ui-tooling")
+    debugImplementation("androidx.compose.ui:ui-test-manifest")
+
+
+    implementation("com.squareup.okhttp3:okhttp:4.10.0")
+    implementation("com.google.code.gson:gson:2.10.1")
+    implementation("org.mindrot:jbcrypt:0.4")
+}
\ No newline at end of file
diff --git a/Android/app/src/main/AndroidManifest.xml b/Android/app/src/main/AndroidManifest.xml
index 5936808..576e266 100644
--- a/Android/app/src/main/AndroidManifest.xml
+++ b/Android/app/src/main/AndroidManifest.xml
@@ -2,27 +2,33 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools">
 
-    <uses-permission android:name="android.permission.INTERNET" />
-
     <application
         android:allowBackup="true"
         android:dataExtractionRules="@xml/data_extraction_rules"
         android:fullBackupContent="@xml/backup_rules"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/Theme.MathsEduc"
         tools:targetApi="31">
-        <activity android:name=".MainActivity" android:exported="true">
+        <activity
+            android:name=".MainActivity"
+            android:exported="true"
+            android:label="@string/app_name"
+            android:theme="@style/Theme.MathsEduc">
             <intent-filter>
                 <category android:name="android.intent.category.LAUNCHER"/>
                 <action android:name="android.intent.action.MAIN"/>
             </intent-filter>
         </activity>
+        <!--
         <activity android:name=".MultiActivity" />
         <activity android:name=".ServerDetailsActivity" />
         <activity android:name=".CreateLobbyActivity" />
         <activity android:name=".ConnexionPlayerActivity" />
         <activity android:name=".QuizMultiActivity" />
+        -->
     </application>
+
 </manifest>
\ No newline at end of file
diff --git a/Android/app/src/main/java/com/example/mathseduc/MainActivity.kt b/Android/app/src/main/java/com/example/mathseduc/MainActivity.kt
index 1645d32..b86de44 100644
--- a/Android/app/src/main/java/com/example/mathseduc/MainActivity.kt
+++ b/Android/app/src/main/java/com/example/mathseduc/MainActivity.kt
@@ -1,46 +1,115 @@
 package com.example.mathseduc
 
-import android.content.Intent
 import android.os.Bundle
-import android.widget.Button
-import android.widget.Toast
-import androidx.appcompat.app.AppCompatActivity
-
-class MainActivity : AppCompatActivity() {
-    companion object {
-        var idPlayerConnected: Int = -1
-    }
+import androidx.activity.ComponentActivity
+import androidx.activity.compose.setContent
+import androidx.compose.foundation.Image
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material3.*
+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.res.painterResource
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import com.example.mathseduc.ui.theme.Colors
+import com.example.mathseduc.ui.theme.MathsEducTheme
 
+class MainActivity : ComponentActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
-        setContentView(R.layout.activity_main)
+        setContent {
+            MathsEducTheme {
+                MainActivityContent()
+            }
+        }
+    }
+}
+
+
+@Composable
+fun MainActivityContent() {
+    val modifier = Modifier
+        .fillMaxSize()
+        .padding(16.dp)
+
+    Column(
+        modifier = modifier,
+        verticalArrangement = Arrangement.Center,
+        horizontalAlignment = Alignment.CenterHorizontally
+    ) {
+        Image(
+            painter = painterResource(id = R.drawable.logo),
+            contentDescription = null,
+            modifier = Modifier
+                .size(160.dp, 130.dp)
+                .clip(RoundedCornerShape(8.dp))
+        )
 
-        val btnSolo = findViewById<Button>(R.id.btnSolo)
-        val btnMulti = findViewById<Button>(R.id.btnMulti)
-        val btnConnexion = findViewById<Button>(R.id.btnConnexion)
+        Spacer(modifier = Modifier.height(16.dp))
 
-        btnSolo.setOnClickListener {
-            // Traitement pour le bouton Solo
-            // Vous pouvez ajouter le code correspondant ici
-            val intent = Intent(this, QuizMultiActivity::class.java)
-            startActivity(intent)
+        Button(
+            onClick = { /* Handle solo button click */ },
+            shape = RoundedCornerShape(15),
+            colors = ButtonDefaults.buttonColors(Colors.Green),
+            modifier = Modifier
+                .fillMaxWidth()
+                .height(48.dp)
+
+        ) {
+            Text(
+                text = "Solo",
+                color = Color.White,
+                fontWeight = FontWeight.Bold
+            )
         }
 
-        btnMulti.setOnClickListener {
-            if (MainActivity.idPlayerConnected != -1){
-                val intent = Intent(this, MultiActivity::class.java)
-                startActivity(intent)
-            }
-            else {
-                Toast.makeText(this, "Vous n'êtes pas connecté", Toast.LENGTH_SHORT).show()
-                val intent = Intent(this, ConnexionPlayerActivity::class.java)
-                startActivity(intent)
-            }
+        Spacer(modifier = Modifier.height(16.dp))
+
+        Button(
+            onClick = { /* Handle multi button click */ },
+            shape = RoundedCornerShape(15),
+            colors = ButtonDefaults.buttonColors(Colors.Orange),
+            modifier = Modifier
+                .fillMaxWidth()
+                .height(48.dp)
+        ) {
+            Text(
+                text = "Multiplayer",
+                color = Color.White,
+                fontWeight = FontWeight.Bold
+            )
         }
 
-        btnConnexion.setOnClickListener {
-            val intent = Intent(this, ConnexionPlayerActivity::class.java)
-            startActivity(intent)
+        Spacer(modifier = Modifier.height(16.dp))
+
+        Button(
+            onClick = { /* Handle connexion button click */ },
+            shape = RoundedCornerShape(15),
+            colors = ButtonDefaults.buttonColors(Colors.Grey),
+            modifier = Modifier
+                .fillMaxWidth()
+                .height(48.dp)
+                .padding(horizontal = 16.dp)
+        ) {
+            Text(
+                text = "Connexion",
+                color = Color.White
+            )
         }
     }
+}
+
+@Preview(showBackground = true)
+@Composable
+fun DefaultPreview() {
+    MathsEducTheme {
+        MainActivityContent()
+    }
 }
\ No newline at end of file
diff --git a/Android/app/src/main/java/com/example/mathseduc/ui/theme/Color.kt b/Android/app/src/main/java/com/example/mathseduc/ui/theme/Color.kt
new file mode 100644
index 0000000..403bb3f
--- /dev/null
+++ b/Android/app/src/main/java/com/example/mathseduc/ui/theme/Color.kt
@@ -0,0 +1,29 @@
+package com.example.mathseduc.ui.theme
+
+import androidx.compose.ui.graphics.Color
+
+val Purple80 = Color(0xFFD0BCFF)
+val PurpleGrey80 = Color(0xFFCCC2DC)
+val Pink80 = Color(0xFFEFB8C8)
+
+val Purple40 = Color(0xFF6650a4)
+val PurpleGrey40 = Color(0xFF625b71)
+val Pink40 = Color(0xFF7D5260)
+
+object Colors {
+    val Purple200 = Color(0xFFBB86FC)
+    val Purple500 = Color(0xFF6200EE)
+    val Purple700 = Color(0xFF3700B3)
+    val Teal200 = Color(0xFF03DAC5)
+    val Teal700 = Color(0xFF018786)
+    val Black = Color(0xFF000000)
+    val White = Color(0xFFFFFFFF)
+    val Green = Color(0xFF008000)
+    val Orange = Color(0xFFFFA500)
+    val Grey = Color(0xFF8C92AC)
+    val Blue = Color(0xFF0D6EFD)
+    val Red = Color(0xFFFF0000)
+    val BlackGrey = Color(0xFF5C636A)
+    val Cyan = Color(0xFF00FFFF)
+    val Turquoise = Color(0xFF40E0D0)
+}
\ No newline at end of file
diff --git a/Android/app/src/main/java/com/example/mathseduc/ui/theme/Theme.kt b/Android/app/src/main/java/com/example/mathseduc/ui/theme/Theme.kt
new file mode 100644
index 0000000..36d4fdb
--- /dev/null
+++ b/Android/app/src/main/java/com/example/mathseduc/ui/theme/Theme.kt
@@ -0,0 +1,79 @@
+package com.example.mathseduc.ui.theme
+
+import android.app.Activity
+import android.os.Build
+import androidx.compose.foundation.Image
+import androidx.compose.foundation.background
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Surface
+import androidx.compose.material3.darkColorScheme
+import androidx.compose.material3.dynamicDarkColorScheme
+import androidx.compose.material3.dynamicLightColorScheme
+import androidx.compose.material3.lightColorScheme
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.SideEffect
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.toArgb
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.platform.LocalView
+import androidx.compose.ui.res.painterResource
+import androidx.core.view.WindowCompat
+import com.example.mathseduc.R
+
+private val DarkColorScheme = darkColorScheme(
+    primary = Purple80,
+    secondary = PurpleGrey80,
+    tertiary = Pink80
+)
+
+private val LightColorScheme = lightColorScheme(
+    primary = Purple40,
+    secondary = PurpleGrey40,
+    tertiary = Pink40
+
+    /* Other default colors to override
+    background = Color(0xFFFFFBFE),
+    surface = Color(0xFFFFFBFE),
+    onPrimary = Color.White,
+    onSecondary = Color.White,
+    onTertiary = Color.White,
+    onBackground = Color(0xFF1C1B1F),
+    onSurface = Color(0xFF1C1B1F),
+    */
+)
+
+@Composable
+fun MathsEducTheme(
+    darkTheme: Boolean = isSystemInDarkTheme(),
+    // Dynamic color is available on Android 12+
+    dynamicColor: Boolean = true,
+    content: @Composable () -> Unit
+) {
+    val colorScheme = when {
+        dynamicColor && Build.VERSION.SDK_INT >= Build.VERSION_CODES.S -> {
+            val context = LocalContext.current
+            if (darkTheme) dynamicDarkColorScheme(context) else dynamicLightColorScheme(context)
+        }
+
+        darkTheme -> DarkColorScheme
+        else -> LightColorScheme
+    }
+    val view = LocalView.current
+    if (!view.isInEditMode) {
+        SideEffect {
+            val window = (view.context as Activity).window
+            window.statusBarColor = colorScheme.primary.toArgb()
+            WindowCompat.getInsetsController(window, view).isAppearanceLightStatusBars = darkTheme
+        }
+    }
+
+    MaterialTheme(
+        colorScheme = colorScheme,
+        typography = Typography,
+        content = content
+    )
+}
\ No newline at end of file
diff --git a/Android/app/src/main/java/com/example/mathseduc/ui/theme/Type.kt b/Android/app/src/main/java/com/example/mathseduc/ui/theme/Type.kt
new file mode 100644
index 0000000..a635e68
--- /dev/null
+++ b/Android/app/src/main/java/com/example/mathseduc/ui/theme/Type.kt
@@ -0,0 +1,34 @@
+package com.example.mathseduc.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
+
+// Set of Material typography styles to start with
+val Typography = Typography(
+    bodyLarge = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Normal,
+        fontSize = 16.sp,
+        lineHeight = 24.sp,
+        letterSpacing = 0.5.sp
+    )
+    /* Other default text styles to override
+    titleLarge = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Normal,
+        fontSize = 22.sp,
+        lineHeight = 28.sp,
+        letterSpacing = 0.sp
+    ),
+    labelSmall = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Medium,
+        fontSize = 11.sp,
+        lineHeight = 16.sp,
+        letterSpacing = 0.5.sp
+    )
+    */
+)
\ No newline at end of file
diff --git a/Android/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml b/Android/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
index eca70cf..6f3b755 100644
--- a/Android/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
+++ b/Android/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
@@ -2,4 +2,5 @@
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
     <background android:drawable="@drawable/ic_launcher_background" />
     <foreground android:drawable="@drawable/ic_launcher_foreground" />
+    <monochrome android:drawable="@drawable/ic_launcher_foreground" />
 </adaptive-icon>
\ No newline at end of file
diff --git a/Android/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml b/Android/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
index eca70cf..6f3b755 100644
--- a/Android/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
+++ b/Android/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
@@ -2,4 +2,5 @@
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
     <background android:drawable="@drawable/ic_launcher_background" />
     <foreground android:drawable="@drawable/ic_launcher_foreground" />
+    <monochrome android:drawable="@drawable/ic_launcher_foreground" />
 </adaptive-icon>
\ No newline at end of file
diff --git a/Android/app/src/main/res/values/colors.xml b/Android/app/src/main/res/values/colors.xml
index 390fba9..f8c6127 100644
--- a/Android/app/src/main/res/values/colors.xml
+++ b/Android/app/src/main/res/values/colors.xml
@@ -7,12 +7,4 @@
     <color name="teal_700">#FF018786</color>
     <color name="black">#FF000000</color>
     <color name="white">#FFFFFFFF</color>
-    <color name="green">#008000</color>
-    <color name="orange">#FFA500</color>
-    <color name="grey">#8C92AC</color>
-    <color name="blue">#0d6efd</color>
-    <color name="red">#FF0000</color>
-    <color name="blackgrey">#5c636a</color>
-    <color name="cyan">#00FFFF</color>
-    <color name="turquoise">#40E0D0</color>
 </resources>
\ No newline at end of file
diff --git a/Android/app/src/main/res/values/strings.xml b/Android/app/src/main/res/values/strings.xml
index 5582426..928cfe8 100644
--- a/Android/app/src/main/res/values/strings.xml
+++ b/Android/app/src/main/res/values/strings.xml
@@ -1,34 +1,3 @@
 <resources>
     <string name="app_name">MathsEduc</string>
-    <string name="solo">Solo</string>
-    <string name="multiplayer">Multiplayer</string>
-    <string name="connexion">Connexion</string>
-    <string name="profile">Profile</string>
-    <string name="retour">Retour</string>
-    <string name="addLobby">Ajouter un lobby</string>
-    <string name="lobby">lobby</string>
-    <string name="nbPlayer">nombre de joueurs</string>
-    <string name="listLobbies">Liste des lobbies</string>
-    <string name="difficulty_prompt">Selectionne la difficulty</string>
-    <string name="chapter_prompt">Selectionne un chapter</string>
-    <string name="se_connecter">Se connecter</string>
-    <string name="mot_de_passe">Mot de passe</string>
-    <string name="s_inscrire">S\'inscrire</string>
-    <string name="nom_d_utilisateur">Nom d\'utilisateur</string>
-    <string name="creer_compte">Créer son compte</string>
-    <string name="fermer">Fermer</string>
-    <string name="enregistrer">Enregistrer</string>
-    <string name="fleche">←</string>
-
-    <string-array name="difficulty_array">
-        <item>Facile</item>
-        <item>Moyen</item>
-        <item>Difficile</item>
-    </string-array>
-
-    <string-array name="chapter_array">
-        <item>Chapter 1</item>
-        <item>Chapter 2</item>
-        <item>Chapter 3</item>
-    </string-array>
 </resources>
\ No newline at end of file
diff --git a/Android/app/src/main/res/values/themes.xml b/Android/app/src/main/res/values/themes.xml
index c67e381..640c22a 100644
--- a/Android/app/src/main/res/values/themes.xml
+++ b/Android/app/src/main/res/values/themes.xml
@@ -1,19 +1,7 @@
-<resources xmlns:tools="http://schemas.android.com/tools">
-    <!-- Base application theme. -->
-    <style name="Theme.MathsEduc" parent="Theme.MaterialComponents.DayNight.NoActionBar">
-        <!-- Primary brand color. -->
-        <item name="colorPrimary">@color/purple_500</item>
-        <item name="colorPrimaryVariant">@color/purple_700</item>
-        <item name="colorOnPrimary">@color/white</item>
-        <!-- Secondary brand color. -->
-        <item name="colorSecondary">@color/teal_200</item>
-        <item name="colorSecondaryVariant">@color/teal_700</item>
-        <item name="colorOnSecondary">@color/black</item>
-        <!-- Status bar color. -->
-        <item name="android:statusBarColor">?attr/colorPrimaryVariant</item>
-        <!-- Customize your theme here. -->
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <style name="Theme.MathsEduc" parent="android:Theme.Material.Light.NoActionBar">
         <item name="android:windowBackground">@drawable/background</item>
-        <!--<item name="android:fontFamily">@font/math_educ_font</item> -->
-        <item name="android:homeAsUpIndicator"></item>
     </style>
 </resources>
\ No newline at end of file
diff --git a/Android/build.gradle.kts b/Android/build.gradle.kts
new file mode 100644
index 0000000..4645626
--- /dev/null
+++ b/Android/build.gradle.kts
@@ -0,0 +1,5 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+plugins {
+    id("com.android.application") version "8.2.2" apply false
+    id("org.jetbrains.kotlin.android") version "1.9.0" apply false
+}
\ No newline at end of file
diff --git a/Android/gradle/wrapper/gradle-wrapper.properties b/Android/gradle/wrapper/gradle-wrapper.properties
index 606ad56..a9ef6d3 100644
--- a/Android/gradle/wrapper/gradle-wrapper.properties
+++ b/Android/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Tue Feb 27 10:25:39 CET 2024
+#Wed Mar 06 13:56:05 CET 2024
 distributionBase=GRADLE_USER_HOME
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.5-bin.zip
 distributionPath=wrapper/dists
-zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.2-bin.zip
 zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
diff --git a/Android/settings.gradle.kts b/Android/settings.gradle.kts
index c4f996b..9d699eb 100644
--- a/Android/settings.gradle.kts
+++ b/Android/settings.gradle.kts
@@ -15,3 +15,4 @@ dependencyResolutionManagement {
 
 rootProject.name = "MathsEduc"
 include(":app")
+ 
\ No newline at end of file