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+# TestAndroidApp
+
+A minimal Android application built with **Kotlin** and **Jetpack Compose**, serving as a starter template for Android development within the ComplyCube ecosystem.
+
+---
+
+## Table of Contents
+
+- [Overview](#overview)
+- [Tech Stack](#tech-stack)
+- [Architecture](#architecture)
+- [Project Structure](#project-structure)
+- [Screens and UI Flow](#screens-and-ui-flow)
+- [Theme System](#theme-system)
+- [Getting Started](#getting-started)
+- [Building and Running](#building-and-running)
+- [Testing](#testing)
+
+---
+
+## Overview
+
+| Property        | Value                          |
+|-----------------|-------------------------------|
+| Package name    | `com.complycube.testandroidapp` |
+| Min SDK         | 24 (Android 7.0 Nougat)        |
+| Target SDK      | 36 (Android 15)                |
+| Compile SDK     | 36                             |
+| Language        | Kotlin                         |
+| UI toolkit      | Jetpack Compose + Material 3   |
+| Version         | 1.0                            |
+
+---
+
+## Tech Stack
+
+| Layer            | Library / Tool                              | Version       |
+|------------------|---------------------------------------------|---------------|
+| Language         | Kotlin                                      | 2.0.21        |
+| Build            | Android Gradle Plugin                       | 9.0.1         |
+| UI               | Jetpack Compose BOM                         | 2024.09.00    |
+| Material Design  | androidx.compose.material3                  | (BOM-managed) |
+| Lifecycle        | androidx.lifecycle.runtime.ktx              | 2.10.0        |
+| Activity         | androidx.activity.compose                   | 1.13.0        |
+| Core             | androidx.core.ktx                           | 1.18.0        |
+| Unit testing     | JUnit 4                                     | 4.13.2        |
+| UI testing       | Espresso + Compose UI Test                  | (BOM-managed) |
+
+Dependencies are managed via a **Gradle version catalog** (`gradle/libs.versions.toml`).
+
+---
+
+## Architecture
+
+This project is a single-screen template and intentionally keeps the architecture flat. There are no ViewModels, repositories, or data layers — the app is a starting point to layer those concerns onto.
+
+```
+┌─────────────────────────────────────────────┐
+│                  MainActivity               │
+│  (ComponentActivity, edge-to-edge enabled)  │
+│                                             │
+│  ┌─────────────────────────────────────┐    │
+│  │         TestAndroidAppTheme         │    │
+│  │  (Material 3 theme wrapper)         │    │
+│  │                                     │    │
+│  │  ┌───────────────────────────────┐  │    │
+│  │  │          Scaffold             │  │    │
+│  │  │                               │  │    │
+│  │  │  ┌─────────────────────────┐  │  │    │
+│  │  │  │       Greeting()        │  │  │    │
+│  │  │  │  Text("Hello Android!") │  │  │    │
+│  │  │  └─────────────────────────┘  │  │    │
+│  │  └───────────────────────────────┘  │    │
+│  └─────────────────────────────────────┘    │
+└─────────────────────────────────────────────┘
+```
+
+---
+
+## Project Structure
+
+```
+TestAndroidApp/
+├── app/
+│   ├── src/
+│   │   ├── main/
+│   │   │   ├── java/com/complycube/testandroidapp/
+│   │   │   │   ├── MainActivity.kt          # Entry point, hosts Greeting composable
+│   │   │   │   └── ui/
+│   │   │   │       └── theme/
+│   │   │   │           ├── Color.kt         # Material 3 color tokens
+│   │   │   │           ├── Theme.kt         # App theme (light/dark + dynamic color)
+│   │   │   │           └── Type.kt          # Typography scale
+│   │   │   ├── res/
+│   │   │   │   ├── values/
+│   │   │   │   │   ├── strings.xml          # String resources
+│   │   │   │   │   ├── colors.xml
+│   │   │   │   │   └── themes.xml           # Base XML theme (no action bar)
+│   │   │   │   ├── drawable/                # Vector assets
+│   │   │   │   ├── mipmap-*/               # Launcher icons (all densities)
+│   │   │   │   └── xml/                    # Backup and data extraction rules
+│   │   │   └── AndroidManifest.xml
+│   │   ├── test/
+│   │   │   └── ExampleUnitTest.kt           # JUnit 4 unit test example
+│   │   └── androidTest/
+│   │       └── ExampleInstrumentedTest.kt   # Espresso instrumented test example
+│   ├── build.gradle.kts
+│   └── proguard-rules.pro
+├── gradle/
+│   └── libs.versions.toml                   # Centralized dependency versions
+├── build.gradle.kts                         # Root build file
+├── settings.gradle.kts
+└── gradle.properties
+```
+
+---
+
+## Screens and UI Flow
+
+The app currently has **one screen**:
+
+```
+App Launch
+    │
+    ▼
+┌──────────────────────────┐
+│       MainActivity        │
+│                          │
+│   ┌──────────────────┐   │
+│   │  "Hello Android!" │   │
+│   └──────────────────┘   │
+└──────────────────────────┘
+```
+
+### Composables
+
+| Composable              | Description                                           |
+|-------------------------|-------------------------------------------------------|
+| `Greeting(name, modifier)` | Displays a greeting text string                    |
+| `GreetingPreview()`     | `@Preview` composable for IDE design-time rendering   |
+| `TestAndroidAppTheme{}` | Wraps children in the app's Material 3 theme          |
+
+---
+
+## Theme System
+
+The theme supports **light mode**, **dark mode**, and **dynamic color** (Material You, Android 12+).
+
+```
+TestAndroidAppTheme
+        │
+        ├── Android 12+ and dynamic color enabled?
+        │       ├── YES → dynamicDarkColorScheme / dynamicLightColorScheme
+        │       └── NO  ─┐
+        │                 ▼
+        │         ┌────────────────┐
+        │         │  darkTheme?    │
+        │         ├── YES → DarkColorScheme
+        │         └── NO  → LightColorScheme
+        │
+        └── MaterialTheme(colorScheme, typography)
+```
+
+### Color Tokens
+
+| Token          | Light value   | Dark value    |
+|----------------|---------------|---------------|
+| `primary`      | Purple40      | Purple80      |
+| `secondary`    | PurpleGrey40  | PurpleGrey80  |
+| `tertiary`     | Pink40        | Pink80        |
+
+### Typography
+
+`bodyLarge` is customized:
+
+| Property    | Value           |
+|-------------|-----------------|
+| Font family | Default (system) |
+| Font weight | Normal           |
+| Font size   | 16sp             |
+| Line height | 24sp             |
+| Letter spacing | 0.5sp          |
+
+---
+
+## Getting Started
+
+### Prerequisites
+
+- **Android Studio** Ladybug (2024.2) or later
+- **JDK 17** or later
+- **Android SDK** with API level 36 platform installed
+- An Android emulator or physical device running Android 7.0 (API 24) or higher
+
+### Clone the repository
+
+```bash
+git clone <repository-url>
+cd TestAndroidApp
+```
+
+---
+
+## Building and Running
+
+### Via Android Studio
+
+1. Open the project in Android Studio.
+2. Wait for Gradle sync to complete.
+3. Select a run target (emulator or connected device).
+4. Click **Run** (Shift+F10).
+
+### Via command line
+
+```bash
+# Debug build
+./gradlew assembleDebug
+
+# Install on connected device/emulator
+./gradlew installDebug
+
+# Release build (requires signing config)
+./gradlew assembleRelease
+```
+
+---
+
+## Testing
+
+### Unit tests
+
+```bash
+./gradlew test
+```
+
+Runs JUnit 4 tests located in `app/src/test/`.
+
+### Instrumented tests
+
+```bash
+./gradlew connectedAndroidTest
+```
+
+Runs Espresso and Compose UI tests located in `app/src/androidTest/`. Requires a connected device or running emulator.
+
+### All checks
+
+```bash
+./gradlew check
+```