diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 6a3735d..7c3681e 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools" >
+    xmlns:tools="http://schemas.android.com/tools">
 
     <uses-permission android:name="android.permission.NFC" />
     <uses-permission android:name="android.permission.USE_BIOMETRIC" />
@@ -19,6 +19,16 @@
         android:supportsRtl="true"
         android:theme="@style/Theme.SmartTap"
         tools:targetApi="31">
+        <activity
+            android:name=".Authentication"
+            android:exported="true"
+            android:theme="@style/Theme.SmartTap">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+
         <service
             android:name=".HCE"
             android:exported="true"
@@ -26,18 +36,17 @@
             <intent-filter>
                 <action android:name="android.nfc.cardemulation.action.HOST_APDU_SERVICE" />
             </intent-filter>
+
             <meta-data
                 android:name="android.nfc.cardemulation.host_apdu_service"
                 android:resource="@xml/apduservice" />
         </service>
+
         <activity
             android:name=".Main"
             android:exported="true"
             android:theme="@style/Theme.SmartTap">
-            <intent-filter>
-                <action android:name="android.intent.action.MAIN" />
-                <category android:name="android.intent.category.LAUNCHER" />
-            </intent-filter>
         </activity>
     </application>
+
 </manifest>
\ No newline at end of file
diff --git a/app/src/main/java/dev/riverside/credit/Authentication.kt b/app/src/main/java/dev/riverside/credit/Authentication.kt
new file mode 100644
index 0000000..df5b2d7
--- /dev/null
+++ b/app/src/main/java/dev/riverside/credit/Authentication.kt
@@ -0,0 +1,25 @@
+package dev.riverside.credit
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import com.google.android.material.snackbar.Snackbar
+import androidx.appcompat.app.AppCompatActivity
+import androidx.navigation.findNavController
+import androidx.navigation.ui.AppBarConfiguration
+import androidx.navigation.ui.navigateUp
+import androidx.navigation.ui.setupActionBarWithNavController
+import android.view.Menu
+import android.view.MenuItem
+import android.view.View
+import android.view.ViewGroup
+import androidx.biometric.BiometricPrompt
+import androidx.compose.material3.NavigationBar
+import androidx.core.content.ContextCompat
+import androidx.fragment.app.Fragment
+import dev.riverside.credit.databinding.ActivityMainBinding
+import dev.riverside.credit.databinding.AuthBiometricBinding
+import java.util.concurrent.Executor
+
+class Authentication : AppCompatActivity() {
+
+}
diff --git a/app/src/main/java/dev/riverside/credit/Biometrics.kt b/app/src/main/java/dev/riverside/credit/Biometrics.kt
index 8f19974..19b1b53 100644
--- a/app/src/main/java/dev/riverside/credit/Biometrics.kt
+++ b/app/src/main/java/dev/riverside/credit/Biometrics.kt
@@ -42,7 +42,7 @@ class Biometrics : Fragment() {
             override fun onAuthenticationSucceeded(result: BiometricPrompt.AuthenticationResult) {
                 super.onAuthenticationSucceeded(result)
                 val navController = view?.findNavController()
-                navController?.navigate(R.id.action_FirstFragment_to_SecondFragment)
+                navController?.navigate(R.id.action_biometrics_to_homepage)
             }
 
             override fun onAuthenticationFailed() {
diff --git a/app/src/main/java/dev/riverside/credit/ui/theme/Color.kt b/app/src/main/java/dev/riverside/credit/ui/theme/Color.kt
new file mode 100644
index 0000000..bf4207d
--- /dev/null
+++ b/app/src/main/java/dev/riverside/credit/ui/theme/Color.kt
@@ -0,0 +1,11 @@
+package dev.riverside.credit.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)
\ No newline at end of file
diff --git a/app/src/main/java/dev/riverside/credit/ui/theme/Theme.kt b/app/src/main/java/dev/riverside/credit/ui/theme/Theme.kt
new file mode 100644
index 0000000..7bf7d89
--- /dev/null
+++ b/app/src/main/java/dev/riverside/credit/ui/theme/Theme.kt
@@ -0,0 +1,58 @@
+package dev.riverside.credit.ui.theme
+
+import android.app.Activity
+import android.os.Build
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.material3.MaterialTheme
+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.ui.platform.LocalContext
+
+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 SmartTapTheme(
+    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
+    }
+
+    MaterialTheme(
+        colorScheme = colorScheme,
+        typography = Typography,
+        content = content
+    )
+}
\ No newline at end of file
diff --git a/app/src/main/java/dev/riverside/credit/ui/theme/Type.kt b/app/src/main/java/dev/riverside/credit/ui/theme/Type.kt
new file mode 100644
index 0000000..0cb6174
--- /dev/null
+++ b/app/src/main/java/dev/riverside/credit/ui/theme/Type.kt
@@ -0,0 +1,34 @@
+package dev.riverside.credit.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/app/src/main/res/navigation/nav_graph.xml b/app/src/main/res/navigation/nav_graph.xml
index 2133f47..243678b 100644
--- a/app/src/main/res/navigation/nav_graph.xml
+++ b/app/src/main/res/navigation/nav_graph.xml
@@ -3,21 +3,31 @@
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:id="@+id/nav_graph"
-    app:startDestination="@id/FirstFragment">
-
+    app:startDestination="@id/authentication">
     <fragment
-        android:id="@+id/FirstFragment"
+        android:id="@+id/authentication"
+        android:name="dev.riverside.credit.Authentication"
+        android:label="Authentication" >
+        <action
+            android:id="@+id/action_authentication_to_biometrics"
+            app:destination="@id/biometrics" />
+    </fragment>
+    <fragment
+        android:id="@+id/biometrics"
         android:name="dev.riverside.credit.Biometrics"
-        android:label="@string/first_fragment_label"
-        tools:layout="@layout/auth_biometric">
-
+        android:label="auth_biometric"
+        tools:layout="@layout/auth_biometric" >
         <action
-            android:id="@+id/action_FirstFragment_to_SecondFragment"
-            app:destination="@id/SecondFragment" />
+            android:id="@+id/action_biometrics_to_homepage"
+            app:destination="@id/homepage" />
     </fragment>
     <fragment
-        android:id="@+id/SecondFragment"
+        android:id="@+id/homepage"
         android:name="dev.riverside.credit.Homepage"
-        android:label="@string/second_fragment_label"
-        tools:layout="@layout/smart_tap"/>
+        android:label="smart_tap"
+        tools:layout="@layout/smart_tap" />
+    <fragment
+        android:id="@+id/biometricAuthorisation"
+        android:name="dev.riverside.credit.Authentication.BiometricAuthorisation"
+        android:label="BiometricAuthorisation" />
 </navigation>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index d31c575..789d0a9 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -45,4 +45,5 @@
     </string>
     <string name="service_name">Smart Tap</string>
     <string name="aid_group_description">Lorem Ipsum</string>
+    <string name="title_activity_authentication">Authentication</string>
 </resources>
\ No newline at end of file