diff --git a/src/ui/TranslationUI.cpp b/src/ui/TranslationUI.cpp
index 05f5c7f..ada5da1 100644
--- a/src/ui/TranslationUI.cpp
+++ b/src/ui/TranslationUI.cpp
@@ -1,250 +1,250 @@
-#include <glad/glad.h>  // MUST be FIRST! Provides OpenGL functions
-#define GLFW_INCLUDE_NONE  // Tell GLFW not to include OpenGL headers (GLAD does it)
-#include "TranslationUI.h"
-#include <imgui.h>
-#include <imgui_impl_glfw.h>
-#include <imgui_impl_opengl3.h>
-#include <iostream>
-#include <thread>
-
-namespace secondvoice {
-
-TranslationUI::TranslationUI(int width, int height)
-    : width_(width)
-    , height_(height) {
-}
-
-TranslationUI::~TranslationUI() {
-    if (window_) {
-        ImGui_ImplOpenGL3_Shutdown();
-        ImGui_ImplGlfw_Shutdown();
-        ImGui::DestroyContext();
-        glfwDestroyWindow(window_);
-        glfwTerminate();
-    }
-}
-
-bool TranslationUI::initialize() {
-    // Initialize GLFW
-    std::cout << "[UI] Initializing GLFW..." << std::endl;
-    glfwSetErrorCallback([](int error, const char* description) {
-        std::cerr << "[GLFW Error " << error << "] " << description << std::endl;
-    });
-
-    if (!glfwInit()) {
-        std::cerr << "[UI] Failed to initialize GLFW" << std::endl;
-        return false;
-    }
-    std::cout << "[UI] GLFW initialized successfully" << std::endl;
-
-    // FORCE high-performance GPU (NVIDIA/AMD dedicated)
-    std::cout << "[UI] Requesting high-performance GPU..." << std::endl;
-
-    // OpenGL 3.3 - core profile
-    glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
-    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
-    glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
-
-    // Create window
-    std::cout << "[UI] Creating GLFW window (" << width_ << "x" << height_ << ")..." << std::endl;
-    window_ = glfwCreateWindow(width_, height_, "SecondVoice - Live Translation", nullptr, nullptr);
-    if (!window_) {
-        std::cerr << "[UI] Failed to create GLFW window" << std::endl;
-        glfwTerminate();
-        return false;
-    }
-    std::cout << "[UI] GLFW window created successfully" << std::endl;
-
-    glfwMakeContextCurrent(window_);
-    glfwSwapInterval(1);  // Enable vsync
-
-    // Initialize GLAD - MUST happen after glfwMakeContextCurrent!
-    std::cout << "[UI] Initializing GLAD OpenGL loader..." << std::endl;
-    if (!gladLoadGLLoader((GLADloadproc)glfwGetProcAddress)) {
-        std::cerr << "[UI] Failed to initialize GLAD!" << std::endl;
-        glfwDestroyWindow(window_);
-        glfwTerminate();
-        return false;
-    }
-    std::cout << "[UI] GLAD initialized successfully" << std::endl;
-
-    // Query OpenGL context to see which GPU we got
-    const GLubyte* vendor = glGetString(GL_VENDOR);
-    const GLubyte* renderer = glGetString(GL_RENDERER);
-    const GLubyte* version = glGetString(GL_VERSION);
-
-    std::cout << "[UI] ========================================" << std::endl;
-    std::cout << "[UI] OpenGL Context Info:" << std::endl;
-    std::cout << "[UI]   Vendor:   " << (vendor ? (const char*)vendor : "Unknown") << std::endl;
-    std::cout << "[UI]   Renderer: " << (renderer ? (const char*)renderer : "Unknown") << std::endl;
-    std::cout << "[UI]   Version:  " << (version ? (const char*)version : "Unknown") << std::endl;
-    std::cout << "[UI] ========================================" << std::endl;
-
-    // Initialize ImGui
-    IMGUI_CHECKVERSION();
-    ImGui::CreateContext();
-    ImGuiIO& io = ImGui::GetIO();
-    io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;
-
-    ImGui::StyleColorsDark();
-
-    ImGui_ImplGlfw_InitForOpenGL(window_, true);
-
-    // TEST: Compile a simple shader to see REAL error messages
-    std::cout << "[UI] Testing shader compilation..." << std::endl;
-    const char* vertexShaderSource = R"(
-#version 130
-in vec2 Position;
-in vec2 UV;
-in vec4 Color;
-varying vec2 Frag_UV;
-varying vec4 Frag_Color;
-void main() {
-    Frag_UV = UV;
-    Frag_Color = Color;
-    gl_Position = vec4(Position, 0, 1);
-}
-)";
-
-    GLuint testShader = glCreateShader(GL_VERTEX_SHADER);
-    glShaderSource(testShader, 1, &vertexShaderSource, NULL);
-    glCompileShader(testShader);
-
-    GLint success;
-    glGetShaderiv(testShader, GL_COMPILE_STATUS, &success);
-    if (!success) {
-        char infoLog[1024];
-        glGetShaderInfoLog(testShader, 1024, NULL, infoLog);
-        std::cerr << "[UI] ==================== SHADER COMPILATION ERROR ====================" << std::endl;
-        std::cerr << infoLog << std::endl;
-        std::cerr << "[UI] ====================================================================" << std::endl;
-    } else {
-        std::cout << "[UI] Test shader compiled successfully!" << std::endl;
-    }
-    glDeleteShader(testShader);
-
-    // DEBUG: Check if GLAD loaded glCreateShader
-    std::cout << "[UI] DEBUG: glCreateShader function pointer = " << (void*)glCreateShader << std::endl;
-    if (glCreateShader == nullptr) {
-        std::cerr << "[UI] ERROR: glCreateShader is NULL!" << std::endl;
-        return false;
-    }
-
-    // Let ImGui auto-detect the GLSL version
-    ImGui_ImplOpenGL3_Init(nullptr);
-
-    // CRITICAL: Release the OpenGL context from this thread
-    // The UI rendering will happen in a separate thread which will call makeContextCurrent()
-    std::cout << "[UI] Releasing OpenGL context from initialization thread" << std::endl;
-    glfwMakeContextCurrent(nullptr);
-
-    return true;
-}
-
-void TranslationUI::makeContextCurrent() {
-    if (window_) {
-        std::cout << "[UI] Making OpenGL context current in thread: " << std::this_thread::get_id() << std::endl;
-        glfwMakeContextCurrent(window_);
-    }
-}
-
-void TranslationUI::render() {
-    glfwPollEvents();
-
-    // Start ImGui frame
-    ImGui_ImplOpenGL3_NewFrame();
-    ImGui_ImplGlfw_NewFrame();
-    ImGui::NewFrame();
-
-    // Main window (full viewport)
-    ImGui::SetNextWindowPos(ImVec2(0, 0));
-    ImGui::SetNextWindowSize(ImGui::GetIO().DisplaySize);
-    ImGui::Begin("SecondVoice", nullptr,
-        ImGuiWindowFlags_NoTitleBar |
-        ImGuiWindowFlags_NoResize |
-        ImGuiWindowFlags_NoMove |
-        ImGuiWindowFlags_NoCollapse);
-
-    renderTranslations();
-    renderControls();
-    renderStatus();
-
-    ImGui::End();
-
-    // Rendering
-    ImGui::Render();
-    int display_w, display_h;
-    glfwGetFramebufferSize(window_, &display_w, &display_h);
-    glViewport(0, 0, display_w, display_h);
-    glClearColor(0.1f, 0.1f, 0.1f, 1.0f);
-    glClear(GL_COLOR_BUFFER_BIT);
-    ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
-
-    glfwSwapBuffers(window_);
-}
-
-bool TranslationUI::shouldClose() const {
-    return glfwWindowShouldClose(window_);
-}
-
-void TranslationUI::addTranslation(const std::string& chinese, const std::string& french) {
-    messages_.push_back({chinese, french});
-}
-
-void TranslationUI::renderTranslations() {
-    ImGui::Text("SecondVoice - Live Translation");
-    ImGui::Separator();
-
-    ImGui::BeginChild("Translations", ImVec2(0, -120), true);
-
-    for (const auto& msg : messages_) {
-        ImGui::PushStyleColor(ImGuiCol_Text, ImVec4(0.5f, 0.8f, 1.0f, 1.0f));
-        ImGui::TextWrapped("中文: %s", msg.chinese.c_str());
-        ImGui::PopStyleColor();
-
-        ImGui::PushStyleColor(ImGuiCol_Text, ImVec4(0.5f, 1.0f, 0.5f, 1.0f));
-        ImGui::TextWrapped("FR: %s", msg.french.c_str());
-        ImGui::PopStyleColor();
-
-        ImGui::Spacing();
-        ImGui::Separator();
-        ImGui::Spacing();
-    }
-
-    if (auto_scroll_ && ImGui::GetScrollY() >= ImGui::GetScrollMaxY()) {
-        ImGui::SetScrollHereY(1.0f);
-    }
-
-    ImGui::EndChild();
-}
-
-void TranslationUI::renderControls() {
-    ImGui::Spacing();
-
-    // Center the stop button
-    float button_width = 200.0f;
-    float window_width = ImGui::GetWindowWidth();
-    ImGui::SetCursorPosX((window_width - button_width) * 0.5f);
-
-    if (ImGui::Button("STOP RECORDING", ImVec2(button_width, 40))) {
-        stop_requested_ = true;
-    }
-
-    ImGui::Spacing();
-}
-
-void TranslationUI::renderStatus() {
-    ImGui::Separator();
-
-    // Format duration as MM:SS
-    int minutes = recording_duration_ / 60;
-    int seconds = recording_duration_ % 60;
-    ImGui::Text("Recording... Duration: %02d:%02d", minutes, seconds);
-
-    if (!processing_status_.empty()) {
-        ImGui::SameLine();
-        ImGui::Text(" | Status: %s", processing_status_.c_str());
-    }
-}
-
-} // namespace secondvoice
+#include <glad/glad.h>  // MUST be FIRST! Provides OpenGL functions
+#define GLFW_INCLUDE_NONE  // Tell GLFW not to include OpenGL headers (GLAD does it)
+#include "TranslationUI.h"
+#include <imgui.h>
+#include <imgui_impl_glfw.h>
+#include <imgui_impl_opengl3.h>
+#include <iostream>
+#include <thread>
+
+namespace secondvoice {
+
+TranslationUI::TranslationUI(int width, int height)
+    : width_(width)
+    , height_(height) {
+}
+
+TranslationUI::~TranslationUI() {
+    if (window_) {
+        ImGui_ImplOpenGL3_Shutdown();
+        ImGui_ImplGlfw_Shutdown();
+        ImGui::DestroyContext();
+        glfwDestroyWindow(window_);
+        glfwTerminate();
+    }
+}
+
+bool TranslationUI::initialize() {
+    // Initialize GLFW
+    std::cout << "[UI] Initializing GLFW..." << std::endl;
+    glfwSetErrorCallback([](int error, const char* description) {
+        std::cerr << "[GLFW Error " << error << "] " << description << std::endl;
+    });
+
+    if (!glfwInit()) {
+        std::cerr << "[UI] Failed to initialize GLFW" << std::endl;
+        return false;
+    }
+    std::cout << "[UI] GLFW initialized successfully" << std::endl;
+
+    // FORCE high-performance GPU (NVIDIA/AMD dedicated)
+    std::cout << "[UI] Requesting high-performance GPU..." << std::endl;
+
+    // OpenGL 3.3 - core profile
+    glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
+    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
+    glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
+
+    // Create window
+    std::cout << "[UI] Creating GLFW window (" << width_ << "x" << height_ << ")..." << std::endl;
+    window_ = glfwCreateWindow(width_, height_, "SecondVoice - Live Translation", nullptr, nullptr);
+    if (!window_) {
+        std::cerr << "[UI] Failed to create GLFW window" << std::endl;
+        glfwTerminate();
+        return false;
+    }
+    std::cout << "[UI] GLFW window created successfully" << std::endl;
+
+    glfwMakeContextCurrent(window_);
+    glfwSwapInterval(1);  // Enable vsync
+
+    // Initialize GLAD - MUST happen after glfwMakeContextCurrent!
+    std::cout << "[UI] Initializing GLAD OpenGL loader..." << std::endl;
+    if (!gladLoadGLLoader((GLADloadproc)glfwGetProcAddress)) {
+        std::cerr << "[UI] Failed to initialize GLAD!" << std::endl;
+        glfwDestroyWindow(window_);
+        glfwTerminate();
+        return false;
+    }
+    std::cout << "[UI] GLAD initialized successfully" << std::endl;
+
+    // Query OpenGL context to see which GPU we got
+    const GLubyte* vendor = glGetString(GL_VENDOR);
+    const GLubyte* renderer = glGetString(GL_RENDERER);
+    const GLubyte* version = glGetString(GL_VERSION);
+
+    std::cout << "[UI] ========================================" << std::endl;
+    std::cout << "[UI] OpenGL Context Info:" << std::endl;
+    std::cout << "[UI]   Vendor:   " << (vendor ? (const char*)vendor : "Unknown") << std::endl;
+    std::cout << "[UI]   Renderer: " << (renderer ? (const char*)renderer : "Unknown") << std::endl;
+    std::cout << "[UI]   Version:  " << (version ? (const char*)version : "Unknown") << std::endl;
+    std::cout << "[UI] ========================================" << std::endl;
+
+    // Initialize ImGui
+    IMGUI_CHECKVERSION();
+    ImGui::CreateContext();
+    ImGuiIO& io = ImGui::GetIO();
+    io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;
+
+    ImGui::StyleColorsDark();
+
+    ImGui_ImplGlfw_InitForOpenGL(window_, true);
+
+    // TEST: Compile a simple shader to see REAL error messages
+    std::cout << "[UI] Testing shader compilation..." << std::endl;
+    const char* vertexShaderSource = R"(
+#version 130
+in vec2 Position;
+in vec2 UV;
+in vec4 Color;
+varying vec2 Frag_UV;
+varying vec4 Frag_Color;
+void main() {
+    Frag_UV = UV;
+    Frag_Color = Color;
+    gl_Position = vec4(Position, 0, 1);
+}
+)";
+
+    GLuint testShader = glCreateShader(GL_VERTEX_SHADER);
+    glShaderSource(testShader, 1, &vertexShaderSource, NULL);
+    glCompileShader(testShader);
+
+    GLint success;
+    glGetShaderiv(testShader, GL_COMPILE_STATUS, &success);
+    if (!success) {
+        char infoLog[1024];
+        glGetShaderInfoLog(testShader, 1024, NULL, infoLog);
+        std::cerr << "[UI] ==================== SHADER COMPILATION ERROR ====================" << std::endl;
+        std::cerr << infoLog << std::endl;
+        std::cerr << "[UI] ====================================================================" << std::endl;
+    } else {
+        std::cout << "[UI] Test shader compiled successfully!" << std::endl;
+    }
+    glDeleteShader(testShader);
+
+    // DEBUG: Check if GLAD loaded glCreateShader
+    std::cout << "[UI] DEBUG: glCreateShader function pointer = " << (void*)glCreateShader << std::endl;
+    if (glCreateShader == nullptr) {
+        std::cerr << "[UI] ERROR: glCreateShader is NULL!" << std::endl;
+        return false;
+    }
+
+    // Let ImGui auto-detect the GLSL version
+    ImGui_ImplOpenGL3_Init(nullptr);
+
+    // CRITICAL: Release the OpenGL context from this thread
+    // The UI rendering will happen in a separate thread which will call makeContextCurrent()
+    std::cout << "[UI] Releasing OpenGL context from initialization thread" << std::endl;
+    glfwMakeContextCurrent(nullptr);
+
+    return true;
+}
+
+void TranslationUI::makeContextCurrent() {
+    if (window_) {
+        std::cout << "[UI] Making OpenGL context current in thread: " << std::this_thread::get_id() << std::endl;
+        glfwMakeContextCurrent(window_);
+    }
+}
+
+void TranslationUI::render() {
+    glfwPollEvents();
+
+    // Start ImGui frame
+    ImGui_ImplOpenGL3_NewFrame();
+    ImGui_ImplGlfw_NewFrame();
+    ImGui::NewFrame();
+
+    // Main window (full viewport)
+    ImGui::SetNextWindowPos(ImVec2(0, 0));
+    ImGui::SetNextWindowSize(ImGui::GetIO().DisplaySize);
+    ImGui::Begin("SecondVoice", nullptr,
+        ImGuiWindowFlags_NoTitleBar |
+        ImGuiWindowFlags_NoResize |
+        ImGuiWindowFlags_NoMove |
+        ImGuiWindowFlags_NoCollapse);
+
+    renderTranslations();
+    renderControls();
+    renderStatus();
+
+    ImGui::End();
+
+    // Rendering
+    ImGui::Render();
+    int display_w, display_h;
+    glfwGetFramebufferSize(window_, &display_w, &display_h);
+    glViewport(0, 0, display_w, display_h);
+    glClearColor(0.1f, 0.1f, 0.1f, 1.0f);
+    glClear(GL_COLOR_BUFFER_BIT);
+    ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
+
+    glfwSwapBuffers(window_);
+}
+
+bool TranslationUI::shouldClose() const {
+    return glfwWindowShouldClose(window_);
+}
+
+void TranslationUI::addTranslation(const std::string& chinese, const std::string& french) {
+    messages_.push_back({chinese, french});
+}
+
+void TranslationUI::renderTranslations() {
+    ImGui::Text("SecondVoice - Live Translation");
+    ImGui::Separator();
+
+    ImGui::BeginChild("Translations", ImVec2(0, -120), true);
+
+    for (const auto& msg : messages_) {
+        ImGui::PushStyleColor(ImGuiCol_Text, ImVec4(0.5f, 0.8f, 1.0f, 1.0f));
+        ImGui::TextWrapped("中文: %s", msg.chinese.c_str());
+        ImGui::PopStyleColor();
+
+        ImGui::PushStyleColor(ImGuiCol_Text, ImVec4(0.5f, 1.0f, 0.5f, 1.0f));
+        ImGui::TextWrapped("FR: %s", msg.french.c_str());
+        ImGui::PopStyleColor();
+
+        ImGui::Spacing();
+        ImGui::Separator();
+        ImGui::Spacing();
+    }
+
+    if (auto_scroll_ && ImGui::GetScrollY() >= ImGui::GetScrollMaxY()) {
+        ImGui::SetScrollHereY(1.0f);
+    }
+
+    ImGui::EndChild();
+}
+
+void TranslationUI::renderControls() {
+    ImGui::Spacing();
+
+    // Center the stop button
+    float button_width = 200.0f;
+    float window_width = ImGui::GetWindowWidth();
+    ImGui::SetCursorPosX((window_width - button_width) * 0.5f);
+
+    if (ImGui::Button("STOP RECORDING", ImVec2(button_width, 40))) {
+        stop_requested_ = true;
+    }
+
+    ImGui::Spacing();
+}
+
+void TranslationUI::renderStatus() {
+    ImGui::Separator();
+
+    // Format duration as MM:SS
+    int minutes = recording_duration_ / 60;
+    int seconds = recording_duration_ % 60;
+    ImGui::Text("Recording... Duration: %02d:%02d", minutes, seconds);
+
+    if (!processing_status_.empty()) {
+        ImGui::SameLine();
+        ImGui::Text(" | Status: %s", processing_status_.c_str());
+    }
+}
+
+} // namespace secondvoice