diff --git a/CMakeLists.txt b/CMakeLists.txt
index f16e457..c545de7 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -7,11 +7,23 @@ set(CMAKE_CXX_STANDARD_REQUIRED ON)
 # Find SDL2
 find_package(SDL2 REQUIRED)
 
+# Collect all source files
+set(SOURCES
+    src/main.cpp
+    src/core/Application.cpp
+    src/window/Window.cpp
+    src/renderer/Renderer.cpp
+    src/events/EventManager.cpp
+)
+
 # Add executable
-add_executable(${PROJECT_NAME} src/main.cpp)
+add_executable(${PROJECT_NAME} ${SOURCES})
 
 # Link SDL2
 target_link_libraries(${PROJECT_NAME} SDL2::SDL2)
 
 # Include directories for SDL2
 target_include_directories(${PROJECT_NAME} PRIVATE ${SDL2_INCLUDE_DIRS})
+
+# Set include directories for our source files
+target_include_directories(${PROJECT_NAME} PRIVATE src)
diff --git a/src/core/Application.cpp b/src/core/Application.cpp
new file mode 100644
index 0000000..87f5b7c
--- /dev/null
+++ b/src/core/Application.cpp
@@ -0,0 +1,121 @@
+#include "Application.h"
+#include "Config.h"
+#include "../utils/Utils.h"
+#include <iostream>
+
+Application::Application(const std::string& title, int width, int height)
+    : initialized_(false) {
+    
+    if (!initialize()) {
+        Utils::logError("Failed to initialize application");
+        return;
+    }
+    
+    // Create window
+    window_ = std::make_unique<Window>(title, width, height);
+    if (!window_ || !window_->isValid()) {
+        Utils::logError("Failed to create window");
+        return;
+    }
+    
+    // Create renderer
+    renderer_ = std::make_unique<Renderer>(window_->getHandle());
+    if (!renderer_ || !renderer_->isValid()) {
+        Utils::logError("Failed to create renderer");
+        return;
+    }
+    
+    // Create event manager
+    eventManager_ = std::make_unique<EventManager>();
+    
+    // Register event callbacks
+    eventManager_->registerCallback(EventType::Quit, 
+        [this](const EventData& event) { onQuit(event); });
+    eventManager_->registerCallback(EventType::KeyDown,
+        [this](const EventData& event) { onKeyDown(event); });
+    eventManager_->registerCallback(EventType::KeyUp,
+        [this](const EventData& event) { onKeyUp(event); });
+    
+    initialized_ = true;
+}
+
+Application::~Application() {
+    cleanup();
+}
+
+bool Application::initialize() {
+    if (SDL_Init(SDL_INIT_VIDEO) < 0) {
+        std::cerr << "SDL2 initialization failed: " << SDL_GetError() << std::endl;
+        return false;
+    }
+    return true;
+}
+
+void Application::cleanup() {
+    eventManager_.reset();
+    renderer_.reset();
+    window_.reset();
+    SDL_Quit();
+}
+
+int Application::run() {
+    if (!initialized_) {
+        Utils::logError("Application not properly initialized");
+        return 1;
+    }
+    
+    Utils::log("Starting application...");
+    
+    // Main application loop
+    while (isRunning()) {
+        // Handle events
+        eventManager_->pollEvents();
+        
+        // Update game logic
+        update();
+        
+        // Render frame
+        render();
+    }
+    
+    Utils::log("Application finished");
+    return 0;
+}
+
+void Application::update() {
+    // Update game logic here
+    // This is where you would update game objects, physics, etc.
+}
+
+void Application::render() {
+    if (!renderer_) return;
+    
+    // Clear screen with black background
+    renderer_->setDrawColor(0, 0, 0, 255);
+    renderer_->clear();
+    
+    // Render game objects here
+    // This is where you would draw sprites, shapes, etc.
+    
+    // Present the frame
+    renderer_->present();
+}
+
+void Application::onQuit(const EventData& event) {
+    stop();
+}
+
+void Application::onKeyDown(const EventData& event) {
+    const SDL_KeyboardEvent& keyEvent = event.sdlEvent.key;
+    
+    switch (keyEvent.keysym.sym) {
+        case SDLK_ESCAPE:
+            stop();
+            break;
+        // Add more key handling here
+    }
+}
+
+void Application::onKeyUp(const EventData& event) {
+    // Handle key up events here
+}
diff --git a/src/core/Application.h b/src/core/Application.h
new file mode 100644
index 0000000..a6a6762
--- /dev/null
+++ b/src/core/Application.h
@@ -0,0 +1,48 @@
+#pragma once
+
+#include "Common.h"
+#include "../window/Window.h"
+#include "../renderer/Renderer.h"
+#include "../events/EventManager.h"
+
+class Application {
+public:
+    Application(const std::string& title, int width, int height);
+    ~Application();
+    
+    // Disable copying
+    Application(const Application&) = delete;
+    Application& operator=(const Application&) = delete;
+    
+    // Main application loop
+    int run();
+    
+    // Getters
+    Window* getWindow() const { return window_.get(); }
+    Renderer* getRenderer() const { return renderer_.get(); }
+    EventManager* getEventManager() const { return eventManager_.get(); }
+    
+    // Application state
+    bool isRunning() const { return eventManager_ && eventManager_->isRunning(); }
+    void stop() { if (eventManager_) eventManager_->stop(); }
+    
+private:
+    // Core components
+    WindowPtr window_;
+    RendererPtr renderer_;
+    EventManagerPtr eventManager_;
+    
+    // Application state
+    bool initialized_;
+    
+    // Private methods
+    bool initialize();
+    void cleanup();
+    void update();
+    void render();
+    
+    // Event callbacks
+    void onQuit(const EventData& event);
+    void onKeyDown(const EventData& event);
+    void onKeyUp(const EventData& event);
+};
diff --git a/src/core/Common.h b/src/core/Common.h
new file mode 100644
index 0000000..c55abfe
--- /dev/null
+++ b/src/core/Common.h
@@ -0,0 +1,17 @@
+#pragma once
+
+#include <SDL2/SDL.h>
+#include <memory>
+#include <string>
+
+// Forward declarations
+class Window;
+class Renderer;
+class EventManager;
+class Application;
+
+// Type aliases
+using WindowPtr = std::unique_ptr<Window>;
+using RendererPtr = std::unique_ptr<Renderer>;
+using EventManagerPtr = std::unique_ptr<EventManager>;
+using ApplicationPtr = std::unique_ptr<Application>;
diff --git a/src/core/Config.h b/src/core/Config.h
new file mode 100644
index 0000000..286ae0f
--- /dev/null
+++ b/src/core/Config.h
@@ -0,0 +1,24 @@
+#pragma once
+
+#include <string>
+
+namespace Config {
+    // Window settings
+    constexpr int DEFAULT_WINDOW_WIDTH = 800;
+    constexpr int DEFAULT_WINDOW_HEIGHT = 600;
+    constexpr const char* DEFAULT_WINDOW_TITLE = "Observations on the Sublime Dynamics of Eroding Matter";
+    
+    // Rendering settings
+    constexpr bool VSYNC_ENABLED = true;
+    constexpr int TARGET_FPS = 60;
+    constexpr float TARGET_FRAME_TIME = 1.0f / TARGET_FPS;
+    
+    // Application settings
+    constexpr bool DEBUG_MODE = true;
+    constexpr bool LOGGING_ENABLED = true;
+    
+    // File paths
+    constexpr const char* ASSETS_PATH = "assets/";
+    constexpr const char* CONFIG_PATH = "config/";
+    constexpr const char* LOG_PATH = "logs/";
+}
diff --git a/src/events/EventManager.cpp b/src/events/EventManager.cpp
new file mode 100644
index 0000000..3c5ddfc
--- /dev/null
+++ b/src/events/EventManager.cpp
@@ -0,0 +1,93 @@
+#include "EventManager.h"
+#include <iostream>
+
+EventManager::EventManager() : running_(true) {
+}
+
+bool EventManager::pollEvents() {
+    SDL_Event event;
+    while (SDL_PollEvent(&event)) {
+        processEvent(event);
+    }
+    return running_;
+}
+
+void EventManager::registerCallback(EventType type, EventCallback callback) {
+    callbacks_[type] = callback;
+}
+
+void EventManager::unregisterCallback(EventType type) {
+    callbacks_.erase(type);
+}
+
+void EventManager::processEvent(const SDL_Event& event) {
+    switch (event.type) {
+        case SDL_QUIT:
+            handleQuitEvent();
+            break;
+        case SDL_KEYDOWN:
+        case SDL_KEYUP:
+            handleKeyEvent(event);
+            break;
+        case SDL_MOUSEMOTION:
+        case SDL_MOUSEBUTTONDOWN:
+        case SDL_MOUSEBUTTONUP:
+            handleMouseEvent(event);
+            break;
+        case SDL_WINDOWEVENT:
+            handleWindowEvent(event);
+            break;
+    }
+}
+
+void EventManager::handleQuitEvent() {
+    running_ = false;
+    
+    // Call registered callback if any
+    auto it = callbacks_.find(EventType::Quit);
+    if (it != callbacks_.end()) {
+        EventData data{EventType::Quit, {}};
+        it->second(data);
+    }
+}
+
+void EventManager::handleKeyEvent(const SDL_Event& event) {
+    EventType type = (event.type == SDL_KEYDOWN) ? EventType::KeyDown : EventType::KeyUp;
+    
+    auto it = callbacks_.find(type);
+    if (it != callbacks_.end()) {
+        EventData data{type, event};
+        it->second(data);
+    }
+}
+
+void EventManager::handleMouseEvent(const SDL_Event& event) {
+    EventType type;
+    switch (event.type) {
+        case SDL_MOUSEMOTION:
+            type = EventType::MouseMove;
+            break;
+        case SDL_MOUSEBUTTONDOWN:
+            type = EventType::MouseButtonDown;
+            break;
+        case SDL_MOUSEBUTTONUP:
+            type = EventType::MouseButtonUp;
+            break;
+        default:
+            return;
+    }
+    
+    auto it = callbacks_.find(type);
+    if (it != callbacks_.end()) {
+        EventData data{type, event};
+        it->second(data);
+    }
+}
+
+void EventManager::handleWindowEvent(const SDL_Event& event) {
+    auto it = callbacks_.find(EventType::WindowEvent);
+    if (it != callbacks_.end()) {
+        EventData data{EventType::WindowEvent, event};
+        it->second(data);
+    }
+}
diff --git a/src/events/EventManager.h b/src/events/EventManager.h
new file mode 100644
index 0000000..f1c9b76
--- /dev/null
+++ b/src/events/EventManager.h
@@ -0,0 +1,48 @@
+#pragma once
+
+#include "../core/Common.h"
+#include <functional>
+#include <unordered_map>
+
+enum class EventType {
+    Quit,
+    KeyDown,
+    KeyUp,
+    MouseMove,
+    MouseButtonDown,
+    MouseButtonUp,
+    WindowEvent
+};
+
+struct EventData {
+    EventType type;
+    SDL_Event sdlEvent;
+};
+
+class EventManager {
+public:
+    EventManager();
+    ~EventManager() = default;
+    
+    // Event handling
+    bool pollEvents();
+    bool isRunning() const { return running_; }
+    void stop() { running_ = false; }
+    
+    // Event callbacks
+    using EventCallback = std::function<void(const EventData&)>;
+    void registerCallback(EventType type, EventCallback callback);
+    void unregisterCallback(EventType type);
+    
+    // Event processing
+    void processEvent(const SDL_Event& event);
+    
+private:
+    bool running_;
+    std::unordered_map<EventType, EventCallback> callbacks_;
+    
+    void handleQuitEvent();
+    void handleKeyEvent(const SDL_Event& event);
+    void handleMouseEvent(const SDL_Event& event);
+    void handleWindowEvent(const SDL_Event& event);
+};
diff --git a/src/main.cpp b/src/main.cpp
index 231a050..d0f7df3 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,61 +1,16 @@
-#include <SDL2/SDL.h>
+#include "core/Application.h"
+#include "core/Config.h"
 #include <iostream>
 
 int main(int argc, char* argv[]) {
-    // Initialize SDL2
-    if (SDL_Init(SDL_INIT_VIDEO) < 0) {
-        std::cerr << "SDL2 initialization failed: " << SDL_GetError() << std::endl;
+    try {
+        Application app(Config::DEFAULT_WINDOW_TITLE, Config::DEFAULT_WINDOW_WIDTH, Config::DEFAULT_WINDOW_HEIGHT);
+        return app.run();
+    } catch (const std::exception& e) {
+        std::cerr << "Fatal error: " << e.what() << std::endl;
+        return 1;
+    } catch (...) {
+        std::cerr << "Unknown fatal error occurred" << std::endl;
         return 1;
     }
-
-    // Create window
-    SDL_Window* window = SDL_CreateWindow(
-        "Observations on the Sublime Dynamics of Eroding Matter",
-        SDL_WINDOWPOS_UNDEFINED,
-        SDL_WINDOWPOS_UNDEFINED,
-        800, 600,
-        SDL_WINDOW_SHOWN
-    );
-
-    if (!window) {
-        std::cerr << "Window creation failed: " << SDL_GetError() << std::endl;
-        SDL_Quit();
-        return 1;
-    }
-
-    // Create renderer
-    SDL_Renderer* renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED);
-    if (!renderer) {
-        std::cerr << "Renderer creation failed: " << SDL_GetError() << std::endl;
-        SDL_DestroyWindow(window);
-        SDL_Quit();
-        return 1;
-    }
-
-    // Main event loop
-    bool running = true;
-    SDL_Event event;
-    
-    while (running) {
-        // Handle events
-        while (SDL_PollEvent(&event)) {
-            if (event.type == SDL_QUIT) {
-                running = false;
-            }
-        }
-
-        // Clear screen with black background
-        SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255);
-        SDL_RenderClear(renderer);
-
-        // Present the renderer
-        SDL_RenderPresent(renderer);
-    }
-
-    // Cleanup
-    SDL_DestroyRenderer(renderer);
-    SDL_DestroyWindow(window);
-    SDL_Quit();
-
-    return 0;
 }
diff --git a/src/renderer/Renderer.cpp b/src/renderer/Renderer.cpp
new file mode 100644
index 0000000..ffbde71
--- /dev/null
+++ b/src/renderer/Renderer.cpp
@@ -0,0 +1,73 @@
+#include "Renderer.h"
+#include <iostream>
+
+Renderer::Renderer(SDL_Window* window)
+    : renderer_(nullptr) {
+    
+    if (window) {
+        renderer_ = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED);
+        if (!renderer_) {
+            std::cerr << "Renderer creation failed: " << SDL_GetError() << std::endl;
+        }
+    }
+}
+
+Renderer::~Renderer() {
+    if (renderer_) {
+        SDL_DestroyRenderer(renderer_);
+        renderer_ = nullptr;
+    }
+}
+
+Renderer::Renderer(Renderer&& other) noexcept
+    : renderer_(other.renderer_) {
+    other.renderer_ = nullptr;
+}
+
+Renderer& Renderer::operator=(Renderer&& other) noexcept {
+    if (this != &other) {
+        if (renderer_) {
+            SDL_DestroyRenderer(renderer_);
+        }
+        
+        renderer_ = other.renderer_;
+        other.renderer_ = nullptr;
+    }
+    return *this;
+}
+
+void Renderer::clear() {
+    if (renderer_) {
+        SDL_RenderClear(renderer_);
+    }
+}
+
+void Renderer::setDrawColor(Uint8 r, Uint8 g, Uint8 b, Uint8 a) {
+    if (renderer_) {
+        SDL_SetRenderDrawColor(renderer_, r, g, b, a);
+    }
+}
+
+void Renderer::present() {
+    if (renderer_) {
+        SDL_RenderPresent(renderer_);
+    }
+}
+
+void Renderer::drawLine(int x1, int y1, int x2, int y2) {
+    if (renderer_) {
+        SDL_RenderDrawLine(renderer_, x1, y1, x2, y2);
+    }
+}
+
+void Renderer::drawRect(const SDL_Rect& rect) {
+    if (renderer_) {
+        SDL_RenderDrawRect(renderer_, &rect);
+    }
+}
+
+void Renderer::fillRect(const SDL_Rect& rect) {
+    if (renderer_) {
+        SDL_RenderFillRect(renderer_, &rect);
+    }
+}
diff --git a/src/renderer/Renderer.h b/src/renderer/Renderer.h
new file mode 100644
index 0000000..acf4490
--- /dev/null
+++ b/src/renderer/Renderer.h
@@ -0,0 +1,35 @@
+#pragma once
+
+#include "../core/Common.h"
+#include <SDL2/SDL.h>
+
+class Renderer {
+public:
+    explicit Renderer(SDL_Window* window);
+    ~Renderer();
+    
+    // Disable copying
+    Renderer(const Renderer&) = delete;
+    Renderer& operator=(const Renderer&) = delete;
+    
+    // Allow moving
+    Renderer(Renderer&& other) noexcept;
+    Renderer& operator=(Renderer&& other) noexcept;
+    
+    // Getters
+    SDL_Renderer* getHandle() const { return renderer_; }
+    bool isValid() const { return renderer_ != nullptr; }
+    
+    // Rendering operations
+    void clear();
+    void setDrawColor(Uint8 r, Uint8 g, Uint8 b, Uint8 a = 255);
+    void present();
+    
+    // Drawing primitives
+    void drawLine(int x1, int y1, int x2, int y2);
+    void drawRect(const SDL_Rect& rect);
+    void fillRect(const SDL_Rect& rect);
+    
+private:
+    SDL_Renderer* renderer_;
+};
diff --git a/src/utils/Utils.h b/src/utils/Utils.h
new file mode 100644
index 0000000..8f4fa59
--- /dev/null
+++ b/src/utils/Utils.h
@@ -0,0 +1,38 @@
+#pragma once
+
+#include <string>
+#include <iostream>
+
+namespace Utils {
+    // Logging utilities
+    inline void log(const std::string& message) {
+        std::cout << "[INFO] " << message << std::endl;
+    }
+    
+    inline void logError(const std::string& message) {
+        std::cerr << "[ERROR] " << message << std::endl;
+    }
+    
+    inline void logWarning(const std::string& message) {
+        std::cout << "[WARNING] " << message << std::endl;
+    }
+    
+    // String utilities
+    inline std::string formatString(const std::string& format, ...) {
+        // Simple string formatting - can be expanded later
+        return format;
+    }
+    
+    // Math utilities
+    template<typename T>
+    inline T clamp(T value, T min, T max) {
+        if (value < min) return min;
+        if (value > max) return max;
+        return value;
+    }
+    
+    template<typename T>
+    inline T lerp(T a, T b, float t) {
+        return a + (b - a) * t;
+    }
+}
diff --git a/src/window/Window.cpp b/src/window/Window.cpp
new file mode 100644
index 0000000..23126e1
--- /dev/null
+++ b/src/window/Window.cpp
@@ -0,0 +1,70 @@
+#include "Window.h"
+#include <iostream>
+
+Window::Window(const std::string& title, int width, int height)
+    : window_(nullptr), width_(width), height_(height), title_(title) {
+    
+    window_ = SDL_CreateWindow(
+        title.c_str(),
+        SDL_WINDOWPOS_UNDEFINED,
+        SDL_WINDOWPOS_UNDEFINED,
+        width,
+        height,
+        SDL_WINDOW_SHOWN
+    );
+    
+    if (!window_) {
+        std::cerr << "Window creation failed: " << SDL_GetError() << std::endl;
+    }
+}
+
+Window::~Window() {
+    if (window_) {
+        SDL_DestroyWindow(window_);
+        window_ = nullptr;
+    }
+}
+
+Window::Window(Window&& other) noexcept
+    : window_(other.window_), width_(other.width_), height_(other.height_), title_(std::move(other.title_)) {
+    other.window_ = nullptr;
+    other.width_ = 0;
+    other.height_ = 0;
+}
+
+Window& Window::operator=(Window&& other) noexcept {
+    if (this != &other) {
+        if (window_) {
+            SDL_DestroyWindow(window_);
+        }
+        
+        window_ = other.window_;
+        width_ = other.width_;
+        height_ = other.height_;
+        title_ = std::move(other.title_);
+        
+        other.window_ = nullptr;
+        other.width_ = 0;
+        other.height_ = 0;
+    }
+    return *this;
+}
+
+void Window::show() {
+    if (window_) {
+        SDL_ShowWindow(window_);
+    }
+}
+
+void Window::hide() {
+    if (window_) {
+        SDL_HideWindow(window_);
+    }
+}
+
+void Window::setTitle(const std::string& title) {
+    title_ = title;
+    if (window_) {
+        SDL_SetWindowTitle(window_, title.c_str());
+    }
+}
diff --git a/src/window/Window.h b/src/window/Window.h
new file mode 100644
index 0000000..fbefa97
--- /dev/null
+++ b/src/window/Window.h
@@ -0,0 +1,35 @@
+#pragma once
+
+#include "../core/Common.h"
+#include <string>
+
+class Window {
+public:
+    Window(const std::string& title, int width, int height);
+    ~Window();
+    
+    // Disable copying
+    Window(const Window&) = delete;
+    Window& operator=(const Window&) = delete;
+    
+    // Allow moving
+    Window(Window&& other) noexcept;
+    Window& operator=(Window&& other) noexcept;
+    
+    // Getters
+    SDL_Window* getHandle() const { return window_; }
+    int getWidth() const { return width_; }
+    int getHeight() const { return height_; }
+    bool isValid() const { return window_ != nullptr; }
+    
+    // Window operations
+    void show();
+    void hide();
+    void setTitle(const std::string& title);
+    
+private:
+    SDL_Window* window_;
+    int width_;
+    int height_;
+    std::string title_;
+};