diff --git a/.idea/inspectionProfiles/Project_Default.xml b/.idea/inspectionProfiles/Project_Default.xml
new file mode 100644
index 0000000..ed76bea
--- /dev/null
+++ b/.idea/inspectionProfiles/Project_Default.xml
@@ -0,0 +1,37 @@
+<component name="InspectionProjectProfileManager">
+  <profile version="1.0">
+    <option name="myName" value="Project Default" />
+    <inspection_tool class="PreviewAnnotationInFunctionWithParameters" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewDimensionRespectsLimit" enabled="true" level="WARNING" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewFontScaleMustBeGreaterThanZero" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewMultipleParameterProviders" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewMustBeTopLevelFunction" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewNeedsComposableAnnotation" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewNotSupportedInUnitTestFiles" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewPickerAnnotation" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+  </profile>
+</component>
\ No newline at end of file
diff --git a/app/src/main/java/dev/lonami/talaria/MainActivity.kt b/app/src/main/java/dev/lonami/talaria/MainActivity.kt
index eb4053d..a12545a 100644
--- a/app/src/main/java/dev/lonami/talaria/MainActivity.kt
+++ b/app/src/main/java/dev/lonami/talaria/MainActivity.kt
@@ -35,12 +35,16 @@ class MainActivity : ComponentActivity() {
     }
 }
 
-fun isPhoneValid(phone: String): Boolean {
-    return phone.trim('+', ' ').isNotEmpty()
+enum class LoginStage {
+    ASK_PHONE,
+    ASK_CODE,
 }
 
+fun isPhoneValid(phone: String): Boolean = phone.trim('+', ' ').isNotEmpty()
+fun isLoginCodeValid(code: String): Boolean = code.trim().count { it.isDigit() } == 5
+
 @Composable
-fun PhoneInput(phone: String, onPhoneChanged: (String) -> Unit) {
+fun PhoneInput(phone: String, onPhoneChanged: (String) -> Unit, onSendCode: () -> Unit) {
     Text(stringResource(R.string.enter_phone))
     TextField(
         phone,
@@ -55,16 +59,46 @@ fun PhoneInput(phone: String, onPhoneChanged: (String) -> Unit) {
         onValueChange = onPhoneChanged
     )
     Spacer(Modifier.height(16.dp))
-    Button(enabled = isPhoneValid(phone), modifier = Modifier.fillMaxWidth(), onClick = {
-
-    }) {
+    Button(
+        enabled = isPhoneValid(phone),
+        modifier = Modifier.fillMaxWidth(),
+        onClick = onSendCode
+    ) {
         Text(stringResource(R.string.send_otp))
     }
 }
 
+@Composable
+fun OtpInput(otp: String, onOtpChanged: (String) -> Unit, onConfirmOtp: () -> Unit) {
+    Text(stringResource(R.string.enter_otp))
+    TextField(
+        otp,
+        label = { Text(stringResource(R.string.otp)) },
+        placeholder = { Text(stringResource(R.string.otp_example)) },
+        singleLine = true,
+        keyboardOptions = KeyboardOptions(
+            keyboardType = KeyboardType.Number,
+            imeAction = ImeAction.Done
+        ),
+        modifier = Modifier.fillMaxWidth(),
+        onValueChange = onOtpChanged
+    )
+    Spacer(Modifier.height(16.dp))
+    Button(
+        enabled = isLoginCodeValid(otp),
+        modifier = Modifier.fillMaxWidth(),
+        onClick = onConfirmOtp
+    ) {
+        Text(stringResource(R.string.do_login))
+    }
+}
+
 @Composable
 fun Login() {
+    var stage by remember { mutableStateOf(LoginStage.ASK_PHONE) }
     var phone by remember { mutableStateOf("") }
+    var otp by remember { mutableStateOf("") }
+
     Column(
         modifier = Modifier
             .fillMaxSize()
@@ -80,7 +114,15 @@ fun Login() {
                 .wrapContentWidth(Alignment.CenterHorizontally)
                 .padding(16.dp)
         )
-        PhoneInput(phone, onPhoneChanged = { phone = it })
+        when (stage) {
+            LoginStage.ASK_PHONE -> PhoneInput(
+                phone,
+                onPhoneChanged = { phone = it },
+                onSendCode = { stage = LoginStage.ASK_CODE })
+            LoginStage.ASK_CODE -> OtpInput(otp, onOtpChanged = { otp = it }, onConfirmOtp = {
+
+            })
+        }
     }
 }
 
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 9035d6b..ad0ff3d 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -5,5 +5,8 @@
     <string name="phone_international">Phone (international format)</string>
     <string name="phone_example">+34 600 000 000</string>
     <string name="send_otp">Send code</string>
+    <string name="enter_otp">Enter the code you received:</string>
+    <string name="otp">Code</string>
+    <string name="otp_example">12345</string>
     <string name="do_login">Login</string>
 </resources>
\ No newline at end of file