graph TB
    subgraph "📱 Lumo Android App"
        MA["MainActivity
        📋 Single Activity + Compose Navigation"]
        LA["LumoApplication
        🚀 App Initialization"]

        subgraph "🎛️ Manager Layer"
            UIM["UIManager
            🎨 Edge-to-Edge + Insets"]
            WVM["WebViewManager
            🌐 WebView Lifecycle"]
            PM["PermissionManager
            🔐 Runtime Permissions"]
        end

        subgraph "🧠 ViewModels & State"
            MAVM["MainActivityViewModel
            📊 UI State + Events
            🔄 Network Checks"]
            SVM["SubscriptionViewModel
            💰 Payment State (GMS Only)"]
        end

        subgraph "📦 Data Layer"
            BDP["BaseDependencyProvider
            🏗️ Abstract DI"]
            DP_GMS["DependencyProvider (GMS)
            💳 With Billing"]
            DP_NoGMS["DependencyProvider (NoGMS)
            🚫 No Billing"]
            TR["ThemeRepository
            🎨 Theme Persistence"]
            WAR["WebAppRepository
            🌊 Event Flow"]
            SR["SubscriptionRepository
            💎 Subscription Data (GMS)"]
        end

        subgraph "🌐 WebView Integration"
            CWV["createWebView()
            📺 WebView Factory"]
            LWC["LumoWebClient
            🔍 Page Lifecycle + JS Injection"]
            LCC["LumoChromeClient
            📁 File Chooser"]
            WAI["WebAppInterface
            🔗 Base JS Bridge"]
            WAPI["WebAppWithPaymentsInterface
            💳 Payment Bridge (GMS)"]
            JSI["JsInjector
            💉 10+ Injection Functions
            ⌨️ Keyboard + Payments"]
        end

        subgraph "💳 Billing System (GMS Only)"
            BMW["BillingManagerWrapper
            🛡️ Graceful Degradation"]
            BM["BillingManager
            🏪 Google Play Billing
            🔄 Cache + Auto-Refresh"]
        end

        subgraph "🎤 Speech Recognition"
            SRM["SpeechRecognitionManager
            🗣️ Native Speech API
            📊 RMS Tracking"]
            SIS["SpeechInputSheet
            🎙️ Voice UI + Waveform"]
        end

        subgraph "🧭 Navigation"
            NR["NavRoutes
            🗺️ Type-Safe Routes"]
            CS["ChatScreen
            💬 Main WebView Screen"]
            PS["PaymentScreen
            💳 Payment Dialog (GMS)"]
            PLD["PurchaseLinkDialog
            🔗 Web Payment (NoGMS)"]
        end

        subgraph "📱 UI Components"
            LS["LoadingScreen
            ⏳ Lottie Animation"]
            Theme["LumoTheme
            🎨 Material 3 + Sync"]
            PPS["PaymentProcessingScreen
            ⚙️ Payment States (GMS)"]
            SC["SubscriptionComponent
            💎 Subscription Info (GMS)"]
            FCI["FeatureComparisonItem
            📋 Plan Features"]
        end

        subgraph "🛠️ Configuration"
            Config["LumoConfig
            ⚙️ Domain Management
            🌐 Multi-Env Support"]
            Models["Models & Data Classes
            📋 UiText, LumoTheme, etc."]
        end

        subgraph "🏗️ Build Variants"
            V_Env["Environment: production"]
            V_Debug["Debugging: standard | noWebViewDebug"]
            V_Services["Services: gms | noGms"]
        end
    end

    subgraph "🌍 External Services"
        Web["Lumo Web App
        🌐 lumo.proton.me"]
        GP["Google Play Billing
        💳 Payment Processing"]
        Android["Android System
        📱 Speech + Permissions"]
    end

    %% Main initialization
    LA --> BDP
    MA --> UIM
    MA --> WVM
    MA --> PM
    MA --> MAVM
    MA --> SRM
    MA --> NR

    %% DI Provider variants
    BDP --> DP_GMS
    BDP --> DP_NoGMS
    DP_GMS --> BMW
    DP_GMS --> WAPI
    DP_NoGMS --> WAI

    %% Manager connections
    WVM --> CWV

    %% WebView creation chain
    CWV --> LWC
    CWV --> LCC
    CWV --> WAI
    LWC --> JSI

    %% JS Bridge variants
    WAI --> WAPI
    WAPI --> BM

    %% ViewModel data flow
    MAVM --> WAR
    MAVM --> TR
    SVM --> SR

    %% Navigation routes
    NR --> CS
    NR --> PS
    NR --> PLD
    CS --> CWV
    CS --> SIS
    PS --> SVM

    %% Billing chain (GMS)
    BMW --> BM
    BM --> GP

    %% Speech chain
    SIS --> SRM
    SRM --> Android

    %% WebView to Web
    CWV --> Web
    LWC --> Web

    %% UI components
    CS --> LS
    PS --> PPS
    PS --> SC
    PS --> FCI

    %% Theme system
    Theme --> TR
    MAVM --> Theme

    %% Build variant effects
    V_Services -.-> DP_GMS
    V_Services -.-> DP_NoGMS
    V_Debug -.-> CWV

    %% Styling
    classDef manager fill:#e1f5fe
    classDef viewmodel fill:#f3e5f5
    classDef data fill:#e8f5e8
    classDef webview fill:#fff3e0
    classDef billing fill:#fce4ec
    classDef speech fill:#f1f8e9
    classDef navigation fill:#e8eaf6
    classDef ui fill:#e3f2fd
    classDef config fill:#fafafa
    classDef external fill:#ffebee
    classDef variant fill:#e0f2f1
    classDef app fill:#f3e5f5

    class UIM,WVM,PM manager
    class MAVM,SVM viewmodel
    class BDP,DP_GMS,DP_NoGMS,TR,WAR,SR data
    class CWV,LWC,LCC,WAI,WAPI,JSI webview
    class BMW,BM billing
    class SRM,SIS speech
    class NR,CS,PS,PLD navigation
    class LS,Theme,PPS,SC,FCI ui
    class Config,Models config
    class Web,GP,Android external
    class V_Env,V_Debug,V_Services variant
    class MA,LA app