diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index 0f4c973..18e07e9 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -1,6 +1,7 @@
 plugins {
-    alias(libs.plugins.android.application)
-    alias(libs.plugins.kotlin.android)
+    id("com.android.application") version "8.6.1" // AGP version
+    id("org.jetbrains.kotlin.android") version "1.9.0" // Kotlin plugin for Android
+    id("org.jetbrains.kotlin.plugin.serialization") version "1.9.0" // Kotlin serialization plugin
 }
 
 android {
@@ -51,19 +52,33 @@ android {
 
 dependencies {
 
-    implementation(libs.androidx.core.ktx)
-    implementation(libs.androidx.lifecycle.runtime.ktx)
-    implementation(libs.androidx.activity.compose)
-    implementation(platform(libs.androidx.compose.bom))
-    implementation(libs.androidx.ui)
-    implementation(libs.androidx.ui.graphics)
-    implementation(libs.androidx.ui.tooling.preview)
-    implementation(libs.androidx.material3)
-    testImplementation(libs.junit)
-    androidTestImplementation(libs.androidx.junit)
-    androidTestImplementation(libs.androidx.espresso.core)
-    androidTestImplementation(platform(libs.androidx.compose.bom))
-    androidTestImplementation(libs.androidx.ui.test.junit4)
-    debugImplementation(libs.androidx.ui.tooling)
-    debugImplementation(libs.androidx.ui.test.manifest)
+
+    // Supabase dependencies
+    implementation(platform("io.github.jan-tennert.supabase:bom:3.0.0"))
+    implementation("io.github.jan-tennert.supabase:postgrest-kt")
+    implementation("io.ktor:ktor-client-android:3.0.0-rc-1")
+
+    // AndroidX dependencies
+    implementation("androidx.core:core-ktx:1.13.1")
+    implementation("androidx.lifecycle:lifecycle-runtime-ktx:2.8.6")
+    implementation("androidx.activity:activity-compose:1.9.2")
+
+    // Compose dependencies
+    implementation(platform("androidx.compose:compose-bom:2024.09.03"))
+    implementation("androidx.compose.ui:ui")
+    implementation("androidx.compose.ui:ui-graphics")
+    implementation("androidx.compose.ui:ui-tooling-preview")
+    implementation("androidx.compose.material3:material3:1.3.0")
+
+    // Testing dependencies
+    testImplementation("junit:junit:4.13.2")
+    androidTestImplementation("androidx.test.ext:junit:1.2.1")
+    androidTestImplementation("androidx.test.espresso:espresso-core:3.6.1")
+    androidTestImplementation(platform("androidx.compose:compose-bom:2024.09.03"))
+    androidTestImplementation("androidx.compose.ui:ui-test-junit4")
+
+    // Debug dependencies
+    debugImplementation("androidx.compose.ui:ui-tooling")
+    debugImplementation("androidx.compose.ui:ui-test-manifest")
+
 }
\ No newline at end of file
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index c1eede0..fb516a9 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <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"
diff --git a/app/src/main/java/com/uniandes/ecobites/MainActivity.kt b/app/src/main/java/com/uniandes/ecobites/MainActivity.kt
index ae8359a..1916d8d 100644
--- a/app/src/main/java/com/uniandes/ecobites/MainActivity.kt
+++ b/app/src/main/java/com/uniandes/ecobites/MainActivity.kt
@@ -21,14 +21,26 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.text.input.PasswordVisualTransformation
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
-import com.example.ecobites.LoginScreen
 import com.uniandes.ecobites.ui.screens.CartScreen
 import com.uniandes.ecobites.ui.screens.home.HomeScreen
 import com.uniandes.ecobites.ui.screens.ProfileScreen
 import com.uniandes.ecobites.ui.theme.AppTheme
 import com.uniandes.ecobites.ui.components.NavBar
 import com.uniandes.ecobites.ui.SplashScreen
+import com.uniandes.ecobites.ui.screens.LoginScreen
+import io.github.jan.supabase.createSupabaseClient
 import kotlinx.coroutines.delay
+import io.github.jan.supabase.auth.Auth
+import io.github.jan.supabase.postgrest.Postgrest
+
+val supabase = createSupabaseClient(
+    supabaseUrl = "https://nlhcaanwwchxdzdiyizf.supabase.co",
+    supabaseKey = "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJzdXBhYmFzZSIsInJlZiI6Im5saGNhYW53d2NoeGR6ZGl5aXpmIiwicm9sZSI6ImFub24iLCJpYXQiOjE3Mjc5MDc0OTQsImV4cCI6MjA0MzQ4MzQ5NH0.LrcRGkVH1qjPE09xDngX7wrtrUmfIYbTGrgbPKarTeM"
+) {
+    install(Auth)
+    install(Postgrest)
+    //install other modules
+}
 
 class MainActivity : ComponentActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
@@ -44,26 +56,27 @@ class MainActivity : ComponentActivity() {
 @Composable
 fun MyApp() {
     var showSplashScreen by remember { mutableStateOf(true) }
-    var isLoggedIn by remember { mutableStateOf(false) }
+    var isLoggedIn by remember { mutableStateOf(false) } // Track login state
 
-    // Mostrar pantalla de splash durante 3 segundos antes de navegar al contenido principal
+    // Show splash screen for 3 seconds before navigating to the main content
     LaunchedEffect(Unit) {
-        delay(3000) // 3 segundos
-        showSplashScreen = false // Ocultar pantalla de splash después del retardo
+        delay(3000) // 3 seconds delay
+        showSplashScreen = false // Hide splash screen after the delay
     }
 
     if (showSplashScreen) {
-        SplashScreen() // Mostrar pantalla de splash
+        SplashScreen() // Show splash screen
     } else if (!isLoggedIn) {
-        LoginScreen(onSignInClicked = { isLoggedIn = true })
+        LoginScreen(onLoginSuccess = { isLoggedIn = true }) // Pass a callback to update isLoggedIn
     } else {
-        MainContent()
+        MainContent() // Show main content if logged in
     }
 }
 
+
 @Composable
 fun MainContent() {
-    var selectedTab by remember { mutableStateOf(0) }
+    var selectedTab by remember { mutableIntStateOf(0) }
 
     Scaffold(
         bottomBar = {
@@ -80,54 +93,3 @@ fun MainContent() {
     }
 }
 
-@Composable
-fun LoginScreen(onSignInClicked: () -> Unit) {
-    Column(
-    modifier = Modifier
-        .fillMaxSize()
-        .padding(16.dp),
-    verticalArrangement = Arrangement.Center,
-    horizontalAlignment = Alignment.CenterHorizontally
-) {
-    Text(text = "Log in", fontSize = 24.sp)
-    Spacer(modifier = Modifier.height(24.dp))
-
-    Text(text = "eco", fontSize = 48.sp, color = androidx.compose.ui.graphics.Color(0xFF4A6A2B))
-    Text(text = "bites", fontSize = 48.sp, color = androidx.compose.ui.graphics.Color(0xFF4A6A2B))
-
-    Spacer(modifier = Modifier.height(24.dp))
-
-    OutlinedTextField(
-        value = "",
-        onValueChange = {},
-        label = { Text("Username") },
-        modifier = Modifier.fillMaxWidth()
-    )
-
-    OutlinedTextField(
-        value = "",
-        onValueChange = {},
-        label = { Text("Password") },
-        modifier = Modifier.fillMaxWidth(),
-        visualTransformation = PasswordVisualTransformation()
-    )
-
-    Spacer(modifier = Modifier.height(16.dp))
-
-    Button(
-        onClick = {onSignInClicked() },
-        modifier = Modifier.fillMaxWidth()
-    ) {
-        Text("Sign in")
-    }
-
-    Spacer(modifier = Modifier.height(10.dp))
-
-    Button(
-        onClick = { /* Implement sign-up logic */ },
-        modifier = Modifier.fillMaxWidth()
-    ) {
-        Text("Sign Up")
-    }
-}
-}
diff --git a/app/src/main/java/com/uniandes/ecobites/ui/screens/LoginScreen.kt b/app/src/main/java/com/uniandes/ecobites/ui/screens/LoginScreen.kt
index 4e88c97..72673af 100644
--- a/app/src/main/java/com/uniandes/ecobites/ui/screens/LoginScreen.kt
+++ b/app/src/main/java/com/uniandes/ecobites/ui/screens/LoginScreen.kt
@@ -1,29 +1,41 @@
-package com.example.ecobites
+package com.uniandes.ecobites.ui.screens
 
 import android.os.Bundle
+import android.widget.Toast
 import androidx.activity.ComponentActivity
 import androidx.activity.compose.setContent
 import androidx.compose.foundation.layout.*
 import androidx.compose.material3.*
-import androidx.compose.runtime.Composable
+import androidx.compose.runtime.*
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.text.input.PasswordVisualTransformation
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import androidx.compose.ui.tooling.preview.Preview
+import io.github.jan.supabase.createSupabaseClient
+import kotlinx.coroutines.launch
+import io.github.jan.supabase.auth.Auth
+import io.github.jan.supabase.auth.auth
+import io.github.jan.supabase.auth.providers.builtin.Email
 
-class LoginScreen : ComponentActivity() {
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-        setContent {
-            LoginScreenContent()
-        }
-    }
+// Initialize Supabase
+val supabase = createSupabaseClient(
+    supabaseUrl = "https://nlhcaanwwchxdzdiyizf.supabase.co",  // Replace with your actual Supabase URL
+    supabaseKey = "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJzdXBhYmFzZSIsInJlZiI6Im5saGNhYW53d2NoeGR6ZGl5aXpmIiwicm9sZSI6ImFub24iLCJpYXQiOjE3Mjc5MDc0OTQsImV4cCI6MjA0MzQ4MzQ5NH0.LrcRGkVH1qjPE09xDngX7wrtrUmfIYbTGrgbPKarTeM"                  // Replace with your actual Supabase anon key
+){
+    install(Auth)
 }
+val auth = supabase.auth
 
 @Composable
-fun LoginScreenContent() {
+fun LoginScreen(onLoginSuccess: () -> Unit) {
+    val context = LocalContext.current
+    var email by remember { mutableStateOf("") }
+    var password by remember { mutableStateOf("") }
+    val coroutineScope = rememberCoroutineScope() // For launching coroutines
+
     Column(
         modifier = Modifier
             .fillMaxSize()
@@ -31,24 +43,28 @@ fun LoginScreenContent() {
         verticalArrangement = Arrangement.Center,
         horizontalAlignment = Alignment.CenterHorizontally
     ) {
+        // Title
         Text(text = "Log in", fontSize = 24.sp)
         Spacer(modifier = Modifier.height(24.dp))
 
+        // App name
         Text(text = "eco", fontSize = 48.sp, color = androidx.compose.ui.graphics.Color(0xFF4A6A2B))
         Text(text = "bites", fontSize = 48.sp, color = androidx.compose.ui.graphics.Color(0xFF4A6A2B))
 
         Spacer(modifier = Modifier.height(24.dp))
 
+        // Email Input Field
         OutlinedTextField(
-            value = "",
-            onValueChange = {},
-            label = { Text("Username") },
+            value = email,
+            onValueChange = { email = it },
+            label = { Text("Email") },
             modifier = Modifier.fillMaxWidth()
         )
 
+        // Password Input Field
         OutlinedTextField(
-            value = "",
-            onValueChange = {},
+            value = password,
+            onValueChange = { password = it },
             label = { Text("Password") },
             modifier = Modifier.fillMaxWidth(),
             visualTransformation = PasswordVisualTransformation()
@@ -56,8 +72,22 @@ fun LoginScreenContent() {
 
         Spacer(modifier = Modifier.height(16.dp))
 
+        // Sign-In Button
         Button(
-            onClick = { /* Implement sign-in logic */ },
+            onClick = {
+                coroutineScope.launch {
+                    try {
+                        auth.signInWith(Email) {
+                            this.email = email
+                            this.password = password
+                        }
+                        Toast.makeText(context, "Signed in successfully!", Toast.LENGTH_LONG).show()
+                        onLoginSuccess() // Call the callback to update the login state
+                    } catch (e: Exception) {
+                        Toast.makeText(context, "Sign in failed: ${e.message}", Toast.LENGTH_LONG).show()
+                    }
+                }
+            },
             modifier = Modifier.fillMaxWidth()
         ) {
             Text("Sign in")
@@ -65,8 +95,12 @@ fun LoginScreenContent() {
 
         Spacer(modifier = Modifier.height(10.dp))
 
+        // Sign-Up Button
         Button(
-            onClick = { /* Implement sign-up logic */ },
+            onClick = {
+                // Handle sign-up logic (optional)
+                Toast.makeText(context, "Sign Up clicked", Toast.LENGTH_SHORT).show()
+            },
             modifier = Modifier.fillMaxWidth()
         ) {
             Text("Sign Up")
@@ -74,10 +108,3 @@ fun LoginScreenContent() {
     }
 }
 
-@Preview(showBackground = true)
-@Composable
-fun PreviewLoginScreen() {
-    LoginScreenContent()
-}
-
-
diff --git a/build.gradle.kts b/build.gradle.kts
index 922f551..8de1877 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -1,5 +1,5 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 plugins {
-    alias(libs.plugins.android.application) apply false
-    alias(libs.plugins.kotlin.android) apply false
+    id("com.android.application") version "8.6.1" apply false // AGP version
+    id("org.jetbrains.kotlin.android") version "1.9.0" apply false // Kotlin version
 }
\ No newline at end of file
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
deleted file mode 100644
index e75a874..0000000
--- a/gradle/libs.versions.toml
+++ /dev/null
@@ -1,34 +0,0 @@
-[versions]
-agp = "8.6.0"
-kotlin = "1.9.0"
-coreKtx = "1.13.1"
-junit = "4.13.2"
-junitVersion = "1.2.1"
-espressoCore = "3.6.1"
-lifecycleRuntimeKtx = "2.8.5"
-activityCompose = "1.9.2"
-composeBom = "2024.04.01"
-composeVersion = "1.3.0"
-runtimeAndroid = "1.7.2"
-
-[libraries]
-androidx-core-ktx = { group = "androidx.core", name = "core-ktx", version.ref = "coreKtx" }
-junit = { group = "junit", name = "junit", version.ref = "junit" }
-androidx-junit = { group = "androidx.test.ext", name = "junit", version.ref = "junitVersion" }
-androidx-espresso-core = { group = "androidx.test.espresso", name = "espresso-core", version.ref = "espressoCore" }
-androidx-lifecycle-runtime-ktx = { group = "androidx.lifecycle", name = "lifecycle-runtime-ktx", version.ref = "lifecycleRuntimeKtx" }
-androidx-activity-compose = { group = "androidx.activity", name = "activity-compose", version.ref = "activityCompose" }
-androidx-compose-bom = { group = "androidx.compose", name = "compose-bom", version.ref = "composeBom" }
-androidx-ui = { group = "androidx.compose.ui", name = "ui" }
-androidx-ui-graphics = { group = "androidx.compose.ui", name = "ui-graphics" }
-androidx-ui-tooling = { group = "androidx.compose.ui", name = "ui-tooling" }
-androidx-ui-tooling-preview = { group = "androidx.compose.ui", name = "ui-tooling-preview" }
-androidx-ui-test-manifest = { group = "androidx.compose.ui", name = "ui-test-manifest" }
-androidx-ui-test-junit4 = { group = "androidx.compose.ui", name = "ui-test-junit4" }
-androidx-material3 = { group = "androidx.compose.material3", name = "material3", version.ref="composeVersion" }
-androidx-runtime-android = { group = "androidx.compose.runtime", name = "runtime-android", version.ref = "runtimeAndroid" }
-
-[plugins]
-android-application = { id = "com.android.application", version.ref = "agp" }
-kotlin-android = { id = "org.jetbrains.kotlin.android", version.ref = "kotlin" }
-