// main.cpp - Application orchestration (initialization, loop, UI states)
// High-level only: delegates Tetris logic, scores, background, font rendering.

#include <SDL3/SDL.h>
#include <SDL3/SDL_main.h>
#include <SDL3_image/SDL_image.h>
#include <SDL3_ttf/SDL_ttf.h>
#include <string>
#include <cstdio>
#include <algorithm>
#include <array>
#include <vector>
#include <random>
#include <cmath>
#include <cstdlib>
#include <memory>

#include "audio/Audio.h"
#include "audio/SoundEffect.h"

#include "gameplay/core/Game.h"
#include "persistence/Scores.h"
#include "graphics/effects/Starfield.h"
#include "graphics/effects/Starfield3D.h"
#include "graphics/ui/Font.h"
#include "gameplay/effects/LineEffect.h"
#include "states/State.h"
#include "states/LoadingState.h"
#include "states/MenuState.h"
#include "states/OptionsState.h"
#include "states/LevelSelectorState.h"
#include "states/PlayingState.h"
#include "audio/MenuWrappers.h"
#include "utils/ImagePathResolver.h"
#include "graphics/renderers/GameRenderer.h"
#include "core/Config.h"

// Debug logging removed: no-op in this build (previously LOG_DEBUG)

// Font rendering now handled by FontAtlas

// ---------- Game config ----------
static constexpr int LOGICAL_W = 1200;
static constexpr int LOGICAL_H = 1000;
static constexpr int WELL_W = Game::COLS * Game::TILE;
static constexpr int WELL_H = Game::ROWS * Game::TILE;

// Piece types now declared in Game.h

// Scores now managed by ScoreManager

// 4x4 shapes encoded as 16-bit bitmasks per rotation (row-major 4x4).
// Bit 0 = (x=0,y=0), Bit 1 = (1,0) ... Bit 15 = (3,3)
// Shapes & game logic now in Game.cpp

// (removed inline shapes)

// Piece struct now in Game.h

// Game struct replaced by Game class

static const std::array<SDL_Color, PIECE_COUNT + 1> COLORS = {{
    SDL_Color{20, 20, 26, 255},  // 0 empty
    SDL_Color{0, 255, 255, 255}, // I
    SDL_Color{255, 255, 0, 255}, // O
    SDL_Color{160, 0, 255, 255}, // T
    SDL_Color{0, 255, 0, 255},   // S
    SDL_Color{255, 0, 0, 255},   // Z
    SDL_Color{0, 0, 255, 255},   // J
    SDL_Color{255, 160, 0, 255}, // L
}};

static void drawRect(SDL_Renderer *r, float x, float y, float w, float h, SDL_Color c)
{
    SDL_SetRenderDrawColor(r, c.r, c.g, c.b, c.a);
    SDL_FRect fr{x, y, w, h};
    SDL_RenderFillRect(r, &fr);
}

static SDL_Texture* loadTextureFromImage(SDL_Renderer* renderer, const std::string& path, int* outW = nullptr, int* outH = nullptr) {
    if (!renderer) {
        return nullptr;
    }

    const std::string resolvedPath = AssetPath::resolveImagePath(path);
    SDL_Surface* surface = IMG_Load(resolvedPath.c_str());
    if (!surface) {
        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Failed to load image %s (resolved: %s): %s", path.c_str(), resolvedPath.c_str(), SDL_GetError());
        return nullptr;
    }

    if (outW) { *outW = surface->w; }
    if (outH) { *outH = surface->h; }

    SDL_Texture* texture = SDL_CreateTextureFromSurface(renderer, surface);
    SDL_DestroySurface(surface);

    if (!texture) {
        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Failed to create texture from %s: %s", resolvedPath.c_str(), SDL_GetError());
        return nullptr;
    }

    if (resolvedPath != path) {
        SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION, "Loaded %s via %s", path.c_str(), resolvedPath.c_str());
    }

    return texture;
}

struct LevelBackgroundFader {
    SDL_Texture* currentTex = nullptr;
    SDL_Texture* nextTex = nullptr;
    int currentLevel = -1;
    int queuedLevel = -1;
    float fadeElapsedMs = 0.0f;
    float fadeDurationMs = 3500.0f;
};

static void destroyTexture(SDL_Texture*& tex) {
    if (tex) {
        SDL_DestroyTexture(tex);
        tex = nullptr;
    }
}

static bool queueLevelBackground(LevelBackgroundFader& fader, SDL_Renderer* renderer, int level) {
    if (!renderer) {
        return false;
    }

    level = std::clamp(level, 0, 32);
    if (fader.currentLevel == level || fader.queuedLevel == level) {
        return true;
    }

    char bgPath[256];
    std::snprintf(bgPath, sizeof(bgPath), "assets/images/tetris_main_back_level%d.jpg", level);

    SDL_Texture* newTexture = loadTextureFromImage(renderer, bgPath);
    if (!newTexture) {
        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Failed to queue background for level %d: %s", level, bgPath);
        return false;
    }

    destroyTexture(fader.nextTex);
    fader.nextTex = newTexture;
    fader.queuedLevel = level;
    fader.fadeElapsedMs = 0.0f;

    if (!fader.currentTex) {
        fader.currentTex = fader.nextTex;
        fader.currentLevel = fader.queuedLevel;
        fader.nextTex = nullptr;
        fader.queuedLevel = -1;
    }

    return true;
}

static void updateLevelBackgroundFade(LevelBackgroundFader& fader, float frameMs) {
    if (!fader.currentTex || !fader.nextTex) {
        return;
    }

    fader.fadeElapsedMs += frameMs;
    if (fader.fadeElapsedMs >= fader.fadeDurationMs) {
        destroyTexture(fader.currentTex);
        fader.currentTex = fader.nextTex;
        fader.currentLevel = fader.queuedLevel;
        fader.nextTex = nullptr;
        fader.queuedLevel = -1;
        fader.fadeElapsedMs = 0.0f;
    }
}

static void renderLevelBackgrounds(const LevelBackgroundFader& fader, SDL_Renderer* renderer, int winW, int winH) {
    if (!renderer) {
        return;
    }

    SDL_FRect fullRect{0.f, 0.f, static_cast<float>(winW), static_cast<float>(winH)};

    if (fader.currentTex && fader.nextTex) {
        const float duration = std::max(1.0f, fader.fadeDurationMs);
        const float alpha = std::clamp(fader.fadeElapsedMs / duration, 0.0f, 1.0f);

        SDL_SetTextureAlphaMod(fader.currentTex, Uint8((1.0f - alpha) * 255.0f));
        SDL_RenderTexture(renderer, fader.currentTex, nullptr, &fullRect);
        SDL_SetTextureAlphaMod(fader.currentTex, 255);

        SDL_SetTextureAlphaMod(fader.nextTex, Uint8(alpha * 255.0f));
        SDL_RenderTexture(renderer, fader.nextTex, nullptr, &fullRect);
        SDL_SetTextureAlphaMod(fader.nextTex, 255);
    } else if (fader.currentTex) {
        SDL_RenderTexture(renderer, fader.currentTex, nullptr, &fullRect);
    } else if (fader.nextTex) {
        SDL_RenderTexture(renderer, fader.nextTex, nullptr, &fullRect);
    }
}

static void resetLevelBackgrounds(LevelBackgroundFader& fader) {
    destroyTexture(fader.currentTex);
    destroyTexture(fader.nextTex);
    fader.currentLevel = -1;
    fader.queuedLevel = -1;
    fader.fadeElapsedMs = 0.0f;
}

// Hover state for level popup ( -1 = none, 0..19 = hovered level )
// Now managed by LevelSelectorState

// ...existing code...

// -----------------------------------------------------------------------------
// Enhanced Button Drawing
// -----------------------------------------------------------------------------
static void drawEnhancedButton(SDL_Renderer* renderer, FontAtlas& font, float cx, float cy, float w, float h, 
                               const std::string& label, bool isHovered, bool isSelected = false) {
    SDL_Color bgColor = isHovered ? SDL_Color{120, 150, 240, 255} : SDL_Color{80, 110, 200, 255};
    if (isSelected) bgColor = {160, 190, 255, 255};
    
    float x = cx - w/2;
    float y = cy - h/2;
    
    // Draw button background with border
    drawRect(renderer, x-2, y-2, w+4, h+4, {60, 80, 140, 255}); // Border
    drawRect(renderer, x, y, w, h, bgColor); // Background
    
    // Draw button text centered
    float textScale = 1.5f;
    float textX = x + (w - label.length() * 12 * textScale) / 2;
    float textY = y + (h - 20 * textScale) / 2;
    font.draw(renderer, textX, textY, label, textScale, {255, 255, 255, 255});
}

// External wrapper for enhanced button so other translation units can call it.
void menu_drawEnhancedButton(SDL_Renderer* renderer, FontAtlas& font, float cx, float cy, float w, float h,
                             const std::string& label, bool isHovered, bool isSelected) {
    drawEnhancedButton(renderer, font, cx, cy, w, h, label, isHovered, isSelected);
}

// Popup wrappers
// Forward declarations for popup functions defined later in this file
static void drawSettingsPopup(SDL_Renderer* renderer, FontAtlas& font, bool musicEnabled);

void menu_drawSettingsPopup(SDL_Renderer* renderer, FontAtlas& font, bool musicEnabled) {
    drawSettingsPopup(renderer, font, musicEnabled);
}

// Simple rounded menu button drawer used by MenuState (keeps visual parity with JS)
void menu_drawMenuButton(SDL_Renderer* renderer, FontAtlas& font, float cx, float cy, float w, float h,
                         const std::string& label, SDL_Color bgColor, SDL_Color borderColor) {
    float x = cx - w/2;
    float y = cy - h/2;
    drawRect(renderer, x-6, y-6, w+12, h+12, borderColor);
    drawRect(renderer, x-4, y-4, w+8, h+8, {255,255,255,255});
    drawRect(renderer, x, y, w, h, bgColor);

    float textScale = 1.6f;
    float approxCharW = 12.0f * textScale;
    float textW = label.length() * approxCharW;
    float tx = x + (w - textW) / 2.0f;
    float ty = y + (h - 20.0f * textScale) / 2.0f;
    font.draw(renderer, tx+2, ty+2, label, textScale, {0,0,0,180});
    font.draw(renderer, tx, ty, label, textScale, {255,255,255,255});
}

// -----------------------------------------------------------------------------
// Block Drawing Functions
// -----------------------------------------------------------------------------
static void drawBlockTexture(SDL_Renderer* renderer, SDL_Texture* blocksTex, float x, float y, float size, int blockType) {
    if (!blocksTex || blockType < 0 || blockType >= PIECE_COUNT) {
        // Debug: print why we're falling back
        if (!blocksTex) {
            static bool printed = false;
            if (!printed) {
                (void)0;
                printed = true;
            }
        }
        // Fallback to colored rectangle if texture isn't available
        SDL_Color color = (blockType >= 0 && blockType < PIECE_COUNT) ? COLORS[blockType + 1] : SDL_Color{128, 128, 128, 255};
        drawRect(renderer, x, y, size-1, size-1, color);
        return;
    }
    
    // JavaScript uses: sx = type * spriteSize, sy = 0, with 2px padding
    // Each sprite is 90px wide in the horizontal sprite sheet
    const int SPRITE_SIZE = 90;
    float srcX = blockType * SPRITE_SIZE + 2;  // Add 2px padding like JS
    float srcY = 2;                            // Add 2px padding from top like JS
    float srcW = SPRITE_SIZE - 4;              // Subtract 4px total padding like JS
    float srcH = SPRITE_SIZE - 4;              // Subtract 4px total padding like JS
    
    SDL_FRect srcRect = {srcX, srcY, srcW, srcH};
    SDL_FRect dstRect = {x, y, size, size};
    SDL_RenderTexture(renderer, blocksTex, &srcRect, &dstRect);
}

static void drawPiece(SDL_Renderer* renderer, SDL_Texture* blocksTex, const Game::Piece& piece, float ox, float oy, float tileSize, bool isGhost = false) {
    if (piece.type >= PIECE_COUNT) return;
    
    for (int cy = 0; cy < 4; ++cy) {
        for (int cx = 0; cx < 4; ++cx) {
            if (Game::cellFilled(piece, cx, cy)) {
                float px = ox + (piece.x + cx) * tileSize;
                float py = oy + (piece.y + cy) * tileSize;
                
                if (isGhost) {

                    SDL_SetRenderDrawBlendMode(renderer, SDL_BLENDMODE_BLEND);

                    // Draw ghost piece as barely visible gray outline
                    SDL_SetRenderDrawColor(renderer, 180, 180, 180, 20); // Very faint gray
                    SDL_FRect rect = {px + 2, py + 2, tileSize - 4, tileSize - 4};
                    SDL_RenderFillRect(renderer, &rect);
                    
                    // Draw thin gray border
                    SDL_SetRenderDrawColor(renderer, 180, 180, 180, 30);
                    SDL_FRect border = {px + 1, py + 1, tileSize - 2, tileSize - 2};
                    SDL_RenderRect(renderer, &border);
                } else {
                    drawBlockTexture(renderer, blocksTex, px, py, tileSize, piece.type);
                }
            }
        }
    }
}

static void drawSmallPiece(SDL_Renderer* renderer, SDL_Texture* blocksTex, PieceType pieceType, float x, float y, float tileSize) {
    if (pieceType >= PIECE_COUNT) return;
    
    // Use the first rotation (index 0) for preview
    Game::Piece previewPiece;
    previewPiece.type = pieceType;
    previewPiece.rot = 0;
    previewPiece.x = 0;
    previewPiece.y = 0;
    
    // Center the piece in the preview area
    float offsetX = 0, offsetY = 0;
    if (pieceType == I) { offsetX = tileSize * 0.5f; } // I-piece centering
    else if (pieceType == O) { offsetX = tileSize * 0.5f; } // O-piece centering
    
    // Use semi-transparent alpha for preview blocks
    Uint8 previewAlpha = 180; // Change this value for more/less transparency
    SDL_SetTextureAlphaMod(blocksTex, previewAlpha);
    for (int cy = 0; cy < 4; ++cy) {
        for (int cx = 0; cx < 4; ++cx) {
            if (Game::cellFilled(previewPiece, cx, cy)) {
                float px = x + offsetX + cx * tileSize;
                float py = y + offsetY + cy * tileSize;
                drawBlockTexture(renderer, blocksTex, px, py, tileSize, pieceType);
            }
        }
    }
    SDL_SetTextureAlphaMod(blocksTex, 255); // Reset alpha after drawing
}

// -----------------------------------------------------------------------------
// Popup Drawing Functions
// -----------------------------------------------------------------------------
static void drawSettingsPopup(SDL_Renderer* renderer, FontAtlas& font, bool musicEnabled) {
    float popupW = 350, popupH = 260;
    float popupX = (LOGICAL_W - popupW) / 2;
    float popupY = (LOGICAL_H - popupH) / 2;
    
    // Semi-transparent overlay
    SDL_SetRenderDrawColor(renderer, 0, 0, 0, 128);
    SDL_FRect overlay{0, 0, LOGICAL_W, LOGICAL_H};
    SDL_RenderFillRect(renderer, &overlay);
    
    // Popup background
    drawRect(renderer, popupX-4, popupY-4, popupW+8, popupH+8, {100, 120, 160, 255}); // Border
    drawRect(renderer, popupX, popupY, popupW, popupH, {40, 50, 70, 255}); // Background
    
    // Title
    font.draw(renderer, popupX + 20, popupY + 20, "SETTINGS", 2.0f, {255, 220, 0, 255});
    
    // Music toggle
    font.draw(renderer, popupX + 20, popupY + 70, "MUSIC:", 1.5f, {255, 255, 255, 255});
    const char* musicStatus = musicEnabled ? "ON" : "OFF";
    SDL_Color musicColor = musicEnabled ? SDL_Color{0, 255, 0, 255} : SDL_Color{255, 0, 0, 255};
    font.draw(renderer, popupX + 120, popupY + 70, musicStatus, 1.5f, musicColor);
    
    // Sound effects toggle
    font.draw(renderer, popupX + 20, popupY + 100, "SOUND FX:", 1.5f, {255, 255, 255, 255});
    const char* soundStatus = SoundEffectManager::instance().isEnabled() ? "ON" : "OFF";
    SDL_Color soundColor = SoundEffectManager::instance().isEnabled() ? SDL_Color{0, 255, 0, 255} : SDL_Color{255, 0, 0, 255};
    font.draw(renderer, popupX + 140, popupY + 100, soundStatus, 1.5f, soundColor);
    
    // Instructions
    font.draw(renderer, popupX + 20, popupY + 150, "M = TOGGLE MUSIC", 1.0f, {200, 200, 220, 255});
    font.draw(renderer, popupX + 20, popupY + 170, "S = TOGGLE SOUND FX", 1.0f, {200, 200, 220, 255});
    font.draw(renderer, popupX + 20, popupY + 190, "N = PLAY LETS_GO", 1.0f, {200, 200, 220, 255});
    font.draw(renderer, popupX + 20, popupY + 210, "ESC = CLOSE", 1.0f, {200, 200, 220, 255});
}

// -----------------------------------------------------------------------------
// Starfield effect for background
// -----------------------------------------------------------------------------
// Starfield now managed by Starfield class

// State manager integration (scaffolded in StateManager.h)
#include "core/state/StateManager.h"

// -----------------------------------------------------------------------------
// Intro/Menu state variables
// -----------------------------------------------------------------------------
static double logoAnimCounter = 0.0;
static bool showSettingsPopup = false;
static bool showExitConfirmPopup = false;
static int exitPopupSelectedButton = 1; // 0 = YES, 1 = NO
static bool musicEnabled = true;
static int hoveredButton = -1; // -1 = none, 0 = play, 1 = level, 2 = settings
static bool isNewHighScore = false;
static std::string playerName = "";

// -----------------------------------------------------------------------------
// Tetris Block Fireworks for intro animation (block particles)
// Forward declare block render helper used by particles
static void drawBlockTexture(SDL_Renderer* renderer, SDL_Texture* blocksTex, float x, float y, float size, int blockType);
// -----------------------------------------------------------------------------
struct BlockParticle {
    float x, y, vx, vy, size, alpha, decay;
    int blockType; // 0..6
    BlockParticle(float sx, float sy)
        : x(sx), y(sy) {
        float angle = (rand() % 628) / 100.0f; // 0..2pi
        float speed = 1.5f + (rand() % 350) / 100.0f; // ~1.5..5.0
        vx = std::cos(angle) * speed;
        vy = std::sin(angle) * speed;
        size = 6.0f + (rand() % 50) / 10.0f; // 6..11 px
        alpha = 1.0f;
        decay = 0.012f + (rand() % 200) / 10000.0f; // 0.012..0.032
        blockType = rand() % 7; // choose a tetris color
    }
    bool update() {
        vx *= 0.985f; // friction
        vy = vy * 0.985f + 0.07f; // gravity
        x += vx;
        y += vy;
        alpha -= decay;
        size = std::max(2.0f, size - 0.04f);
        return alpha > 0.02f;
    }
};

struct TetrisFirework {
    std::vector<BlockParticle> particles;
    int mode = 0; // 0=random,1=red,2=green,3=palette
    TetrisFirework(float x, float y) {
        mode = rand() % 4;
        int particleCount = 30 + rand() % 25; // 30-55 particles
        particles.reserve(particleCount);
        for (int i = 0; i < particleCount; ++i) particles.emplace_back(x, y);
    }
    bool update() {
        for (auto it = particles.begin(); it != particles.end();) {
            if (!it->update()) it = particles.erase(it); else ++it;
        }
        return !particles.empty();
    }
    // Drawing is handled by drawFireworks_impl which accepts the texture to use.
};

static std::vector<TetrisFirework> fireworks;
static Uint64 lastFireworkTime = 0;

// -----------------------------------------------------------------------------
// Fireworks Management
// -----------------------------------------------------------------------------
static void updateFireworks(double frameMs) {
    Uint64 now = SDL_GetTicks();
    // Randomly spawn new block fireworks (2% chance per frame), bias to lower-right
    if (fireworks.size() < 5 && (rand() % 100) < 2) {
        float x = LOGICAL_W * 0.55f + float(rand() % int(LOGICAL_W * 0.35f));
        float y = LOGICAL_H * 0.80f + float(rand() % int(LOGICAL_H * 0.15f));
        fireworks.emplace_back(x, y);
        lastFireworkTime = now;
    }
    
    // Update existing fireworks
    for (auto it = fireworks.begin(); it != fireworks.end();) {
        if (!it->update()) {
            it = fireworks.erase(it);
        } else {
            ++it;
        }
    }
}

// Primary implementation that accepts a texture pointer
static void drawFireworks_impl(SDL_Renderer* renderer, SDL_Texture* blocksTexture) {
    for (auto& f : fireworks) {
        // Particle draw uses the texture pointer passed into drawBlockTexture calls from f.draw
        // We'll set a thread-local-ish variable by passing the texture as an argument to draw
        // routines or using the provided texture in the particle's draw path.
        // For simplicity, the particle draw function below will reference a global symbol
        // via an argument — we adapt by providing the texture when calling drawBlockTexture.
        // Implementation: call a small lambda that temporarily binds the texture for drawBlockTexture.
        struct Drawer { SDL_Renderer* r; SDL_Texture* tex; void drawParticle(struct BlockParticle& p) {
                if (tex) {
                    Uint8 prevA = 255;
                    SDL_GetTextureAlphaMod(tex, &prevA);
                    Uint8 setA = Uint8(std::max(0.0f, std::min(1.0f, p.alpha)) * 255.0f);
                    SDL_SetTextureAlphaMod(tex, setA);
                    // Note: color modulation will be applied by callers of drawBlockTexture where needed
                    // but we mimic behavior from previous implementation by leaving color mod as default.
                    drawBlockTexture(r, tex, p.x - p.size * 0.5f, p.y - p.size * 0.5f, p.size, p.blockType);
                    SDL_SetTextureAlphaMod(tex, prevA);
                    SDL_SetTextureColorMod(tex, 255, 255, 255);
                } else {
                    SDL_SetRenderDrawColor(r, 255, 255, 255, Uint8(p.alpha * 255));
                    SDL_FRect rect{p.x - p.size/2, p.y - p.size/2, p.size, p.size};
                    SDL_RenderFillRect(r, &rect);
                }
            }
    } drawer{renderer, blocksTexture};
        for (auto &p : f.particles) {
            drawer.drawParticle(p);
        }
    }
}
// External wrappers for use by other translation units (MenuState)
// Expect callers to pass the blocks texture via StateContext so we avoid globals.
void menu_drawFireworks(SDL_Renderer* renderer, SDL_Texture* blocksTex) { drawFireworks_impl(renderer, blocksTex); }
void menu_updateFireworks(double frameMs) { updateFireworks(frameMs); }
double menu_getLogoAnimCounter() { return logoAnimCounter; }
int menu_getHoveredButton() { return hoveredButton; }

int main(int, char **)
{
    // Initialize random seed for fireworks
    srand(static_cast<unsigned int>(SDL_GetTicks()));
    
    int sdlInitRes = SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO);
    if (sdlInitRes < 0)
    {
        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "SDL_Init failed: %s", SDL_GetError());
        return 1;
    }
    int ttfInitRes = TTF_Init();
    if (ttfInitRes < 0)
    {
        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "TTF_Init failed");
        SDL_Quit();
        return 1;
    }
    SDL_Window *window = SDL_CreateWindow("Tetris (SDL3)", LOGICAL_W, LOGICAL_H, SDL_WINDOW_RESIZABLE);
    if (!window)
    {
        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "SDL_CreateWindow failed: %s", SDL_GetError());
        TTF_Quit();
        SDL_Quit();
        return 1;
    }
    SDL_Renderer *renderer = SDL_CreateRenderer(window, nullptr);
    if (!renderer)
    {
        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "SDL_CreateRenderer failed: %s", SDL_GetError());
        SDL_DestroyWindow(window);
        TTF_Quit();
        SDL_Quit();
        return 1;
    }
    SDL_SetRenderVSync(renderer, 1);

    FontAtlas font;
    font.init("FreeSans.ttf", 24);
    
    // Load PressStart2P font for loading screen and retro UI elements
    FontAtlas pixelFont;
    pixelFont.init("assets/fonts/PressStart2P-Regular.ttf", 16);
    
    ScoreManager scores;
    // Load scores asynchronously to prevent startup hang due to network request
    std::thread([&scores]() {
        scores.load();
    }).detach();
    Starfield starfield;
    starfield.init(200, LOGICAL_W, LOGICAL_H);
    Starfield3D starfield3D;
    starfield3D.init(LOGICAL_W, LOGICAL_H, 200);
    
    // Initialize line clearing effects
    LineEffect lineEffect;
    lineEffect.init(renderer);
    
    // Load logo assets via SDL_image so we can use compressed formats
    SDL_Texture* logoTex = loadTextureFromImage(renderer, "assets/images/logo.bmp");

    // Load small logo (used by Menu to show whole logo)
    int logoSmallW = 0, logoSmallH = 0;
    SDL_Texture* logoSmallTex = loadTextureFromImage(renderer, "assets/images/logo_small.bmp", &logoSmallW, &logoSmallH);
    
    // Load menu background using SDL_image (prefers JPEG)
    SDL_Texture* backgroundTex = loadTextureFromImage(renderer, "assets/images/main_background.bmp");

    // Note: `backgroundTex` is owned by main and passed into `StateContext::backgroundTex` below.
    // States should render using `ctx.backgroundTex` rather than accessing globals.
    
    // Level background caching system
    LevelBackgroundFader levelBackgrounds;

    // Default start level selection: 0 (declare here so it's in scope for all handlers)
    int startLevelSelection = 0;
    
    // Load blocks texture via SDL_image (falls back to procedural blocks if missing)
    SDL_Texture* blocksTex = loadTextureFromImage(renderer, "assets/images/blocks90px_001.bmp");
    // No global exposure of blocksTex; states receive textures via StateContext.
    
    if (!blocksTex) {
        // Create a 630x90 texture (7 blocks * 90px each)
        blocksTex = SDL_CreateTexture(renderer, SDL_PIXELFORMAT_RGBA8888, SDL_TEXTUREACCESS_TARGET, 630, 90);
        
        // Generate blocks by drawing colored rectangles to texture
        SDL_SetRenderTarget(renderer, blocksTex);
        SDL_SetRenderDrawColor(renderer, 0, 0, 0, 0);
        SDL_RenderClear(renderer);
        
        for (int i = 0; i < PIECE_COUNT; ++i) {
            SDL_Color c = COLORS[i + 1];
            SDL_SetRenderDrawColor(renderer, c.r, c.g, c.b, c.a);
            SDL_FRect rect{(float)(i * 90), 0, 90, 90};
            SDL_RenderFillRect(renderer, &rect);
        }
        
        SDL_SetRenderTarget(renderer, nullptr);
    }
        
    Game game(startLevelSelection);
    // Apply global gravity speed multiplier from config
    game.setGravityGlobalMultiplier(Config::Gameplay::GRAVITY_SPEED_MULTIPLIER);
    game.reset(startLevelSelection);
    
    // Initialize sound effects system
    SoundEffectManager::instance().init();
    
    // Load sound effects
    SoundEffectManager::instance().loadSound("clear_line", "assets/music/clear_line.wav");
    
    // Load voice lines for line clears using WAV files (with MP3 fallback)
    std::vector<std::string> doubleSounds = {"nice_combo", "you_fire", "well_played", "keep_that_ryhtm"};
    std::vector<std::string> tripleSounds = {"great_move", "smooth_clear", "impressive", "triple_strike"};
    std::vector<std::string> tetrisSounds = {"amazing", "you_re_unstoppable", "boom_tetris", "wonderful"};
    
    // Helper function to load sound with WAV/MP3 fallback and file existence check
    auto loadSoundWithFallback = [&](const std::string& id, const std::string& baseName) {
        std::string wavPath = "assets/music/" + baseName + ".wav";
        std::string mp3Path = "assets/music/" + baseName + ".mp3";
        
        // Check if WAV file exists first
        SDL_IOStream* wavFile = SDL_IOFromFile(wavPath.c_str(), "rb");
        if (wavFile) {
            SDL_CloseIO(wavFile);
            if (SoundEffectManager::instance().loadSound(id, wavPath)) {
                (void)0;
                return;
            }
        }
        
        // Fallback to MP3 if WAV doesn't exist or fails to load
        SDL_IOStream* mp3File = SDL_IOFromFile(mp3Path.c_str(), "rb");
        if (mp3File) {
            SDL_CloseIO(mp3File);
            if (SoundEffectManager::instance().loadSound(id, mp3Path)) {
                (void)0;
                return;
            }
        }
        
    SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Failed to load sound: %s (tried both WAV and MP3)", id.c_str());
    };
    
    loadSoundWithFallback("nice_combo", "nice_combo");
    loadSoundWithFallback("you_fire", "you_fire");
    loadSoundWithFallback("well_played", "well_played");
    loadSoundWithFallback("keep_that_ryhtm", "keep_that_ryhtm");
    loadSoundWithFallback("great_move", "great_move");
    loadSoundWithFallback("smooth_clear", "smooth_clear");
    loadSoundWithFallback("impressive", "impressive");
    loadSoundWithFallback("triple_strike", "triple_strike");
    loadSoundWithFallback("amazing", "amazing");
    loadSoundWithFallback("you_re_unstoppable", "you_re_unstoppable");
    loadSoundWithFallback("boom_tetris", "boom_tetris");
    loadSoundWithFallback("wonderful", "wonderful");
    loadSoundWithFallback("lets_go", "lets_go"); // For level up
    
    // Set up sound effect callbacks
    game.setSoundCallback([&](int linesCleared) {
        // Play basic line clear sound first
        SoundEffectManager::instance().playSound("clear_line", 1.0f); // Increased volume
        
        // Then play voice line based on number of lines cleared
        if (linesCleared == 2) {
            SoundEffectManager::instance().playRandomSound(doubleSounds, 1.0f); // Increased volume
        } else if (linesCleared == 3) {
            SoundEffectManager::instance().playRandomSound(tripleSounds, 1.0f); // Increased volume
        } else if (linesCleared == 4) {
            SoundEffectManager::instance().playRandomSound(tetrisSounds, 1.0f); // Increased volume
        }
        // Single line clears just play the basic clear sound (no voice in JS version)
    });
    
    game.setLevelUpCallback([&](int newLevel) {
        // Play level up sound
        SoundEffectManager::instance().playSound("lets_go", 1.0f); // Increased volume
    });
    
    AppState state = AppState::Loading;
    double loadingProgress = 0.0;
    Uint64 loadStart = SDL_GetTicks();
    bool running = true, isFullscreen = false;
    bool leftHeld = false, rightHeld = false;
    double moveTimerMs = 0;
    const double DAS = 170.0, ARR = 40.0;
    SDL_Rect logicalVP{0, 0, LOGICAL_W, LOGICAL_H};
    float logicalScale = 1.f;
    Uint64 lastMs = SDL_GetPerformanceCounter();
    bool musicStarted = false;
    bool musicLoaded = false;
    int currentTrackLoading = 0;
    int totalTracks = 0; // Will be set dynamically based on actual files

    enum class MenuFadePhase { None, FadeOut, FadeIn };
    MenuFadePhase menuFadePhase = MenuFadePhase::None;
    double menuFadeClockMs = 0.0;
    float menuFadeAlpha = 0.0f;
    const double MENU_PLAY_FADE_DURATION_MS = 450.0;
    AppState menuFadeTarget = AppState::Menu;
    bool menuPlayCountdownArmed = false;
    bool gameplayCountdownActive = false;
    double gameplayCountdownElapsed = 0.0;
    int gameplayCountdownIndex = 0;
    const double GAMEPLAY_COUNTDOWN_STEP_MS = 400.0;
    const std::array<const char*, 4> GAMEPLAY_COUNTDOWN_LABELS = { "3", "2", "1", "START" };
    
    // Instantiate state manager
    StateManager stateMgr(state);

    // Prepare shared context for states
    StateContext ctx{};
    // Allow states to access the state manager for transitions
    ctx.stateManager = &stateMgr;
    ctx.game = &game;
    ctx.scores = &scores;
    ctx.starfield = &starfield;
    ctx.starfield3D = &starfield3D;
    ctx.font = &font;
    ctx.pixelFont = &pixelFont;
    ctx.lineEffect = &lineEffect;
    ctx.logoTex = logoTex;
    ctx.logoSmallTex = logoSmallTex;
    ctx.logoSmallW = logoSmallW;
    ctx.logoSmallH = logoSmallH;
    ctx.backgroundTex = backgroundTex;
    ctx.blocksTex = blocksTex;
    ctx.musicEnabled = &musicEnabled;
    ctx.startLevelSelection = &startLevelSelection;
    ctx.hoveredButton = &hoveredButton;
    ctx.showSettingsPopup = &showSettingsPopup;
    ctx.showExitConfirmPopup = &showExitConfirmPopup;
    ctx.exitPopupSelectedButton = &exitPopupSelectedButton;
    ctx.gameplayCountdownActive = &gameplayCountdownActive;
    ctx.menuPlayCountdownArmed = &menuPlayCountdownArmed;
    ctx.playerName = &playerName;
    ctx.fullscreenFlag = &isFullscreen;
    ctx.applyFullscreen = [window, &isFullscreen](bool enable) {
        SDL_SetWindowFullscreen(window, enable ? SDL_WINDOW_FULLSCREEN : 0);
        isFullscreen = enable;
    };
    ctx.queryFullscreen = [window]() -> bool {
        return (SDL_GetWindowFlags(window) & SDL_WINDOW_FULLSCREEN) != 0;
    };
    ctx.requestQuit = [&running]() {
        running = false;
    };

    auto startMenuPlayTransition = [&]() {
        if (!ctx.stateManager) {
            return;
        }
        if (state != AppState::Menu) {
            state = AppState::Playing;
            ctx.stateManager->setState(state);
            return;
        }
        if (menuFadePhase != MenuFadePhase::None) {
            return;
        }
        menuFadePhase = MenuFadePhase::FadeOut;
        menuFadeClockMs = 0.0;
        menuFadeAlpha = 0.0f;
        menuFadeTarget = AppState::Playing;
        menuPlayCountdownArmed = true;
        gameplayCountdownActive = false;
        gameplayCountdownIndex = 0;
        gameplayCountdownElapsed = 0.0;
    };
    ctx.startPlayTransition = startMenuPlayTransition;

    // Instantiate state objects
    auto loadingState = std::make_unique<LoadingState>(ctx);
    auto menuState = std::make_unique<MenuState>(ctx);
    auto optionsState = std::make_unique<OptionsState>(ctx);
    auto levelSelectorState = std::make_unique<LevelSelectorState>(ctx);
    auto playingState = std::make_unique<PlayingState>(ctx);

    // Register handlers and lifecycle hooks
    stateMgr.registerHandler(AppState::Loading, [&](const SDL_Event& e){ loadingState->handleEvent(e); });
    stateMgr.registerOnEnter(AppState::Loading, [&](){ loadingState->onEnter(); });
    stateMgr.registerOnExit(AppState::Loading, [&](){ loadingState->onExit(); });

    stateMgr.registerHandler(AppState::Menu, [&](const SDL_Event& e){ menuState->handleEvent(e); });
    stateMgr.registerOnEnter(AppState::Menu, [&](){ menuState->onEnter(); });
    stateMgr.registerOnExit(AppState::Menu, [&](){ menuState->onExit(); });

    stateMgr.registerHandler(AppState::Options, [&](const SDL_Event& e){ optionsState->handleEvent(e); });
    stateMgr.registerOnEnter(AppState::Options, [&](){ optionsState->onEnter(); });
    stateMgr.registerOnExit(AppState::Options, [&](){ optionsState->onExit(); });

    stateMgr.registerHandler(AppState::LevelSelector, [&](const SDL_Event& e){ levelSelectorState->handleEvent(e); });
    stateMgr.registerOnEnter(AppState::LevelSelector, [&](){ levelSelectorState->onEnter(); });
    stateMgr.registerOnExit(AppState::LevelSelector, [&](){ levelSelectorState->onExit(); });

    // Combined Playing state handler: run playingState handler
    stateMgr.registerHandler(AppState::Playing, [&](const SDL_Event& e){
        // First give the PlayingState a chance to handle the event
        playingState->handleEvent(e);
    });
    stateMgr.registerOnEnter(AppState::Playing, [&](){ playingState->onEnter(); });
    stateMgr.registerOnExit(AppState::Playing, [&](){ playingState->onExit(); });

    // Playing, LevelSelect and GameOver currently use inline logic in main; we'll migrate later
    while (running)
    {
        int winW = 0, winH = 0;
        SDL_GetWindowSize(window, &winW, &winH);
        
        // Use the full window for the viewport, scale to fit content
        logicalScale = std::min(winW / (float)LOGICAL_W, winH / (float)LOGICAL_H);
        if (logicalScale <= 0)
            logicalScale = 1.f;
        
        // Fill the entire window with our viewport
        logicalVP.w = winW;
        logicalVP.h = winH;
        logicalVP.x = 0;
        logicalVP.y = 0;
        // --- Events ---
        SDL_Event e;
        while (SDL_PollEvent(&e))
        {
            if (e.type == SDL_EVENT_QUIT || e.type == SDL_EVENT_WINDOW_CLOSE_REQUESTED)
                running = false;
            else {
                // Route event to state manager handlers for per-state logic
                stateMgr.handleEvent(e);
                // Keep the local `state` variable in sync with StateManager in case
                // a state handler requested a transition (handlers may call
                // stateMgr.setState()). Many branches below rely on the local
                // `state` variable, so update it immediately after handling.
                state = stateMgr.getState();

                // Global key toggles (applies regardless of state)
                if (e.type == SDL_EVENT_KEY_DOWN && !e.key.repeat) {
                    if (e.key.scancode == SDL_SCANCODE_M)
                    {
                        Audio::instance().toggleMute();
                        musicEnabled = !musicEnabled;
                    }
                    if (e.key.scancode == SDL_SCANCODE_S)
                    {
                        // Toggle sound effects
                        SoundEffectManager::instance().setEnabled(!SoundEffectManager::instance().isEnabled());
                    }
                    if (e.key.scancode == SDL_SCANCODE_N)
                    {
                        // Test sound effects - play lets_go.wav specifically
                        SoundEffectManager::instance().playSound("lets_go", 1.0f);
                    }
                    if (e.key.key == SDLK_F11 || (e.key.key == SDLK_RETURN && (e.key.mod & SDL_KMOD_ALT)))
                    {
                        isFullscreen = !isFullscreen;
                        SDL_SetWindowFullscreen(window, isFullscreen ? SDL_WINDOW_FULLSCREEN : 0);
                    }
                }
                
                // Text input for high score
                if (state == AppState::GameOver && isNewHighScore && e.type == SDL_EVENT_TEXT_INPUT) {
                    if (playerName.length() < 12) {
                        playerName += e.text.text;
                    }
                }

                if (state == AppState::GameOver && e.type == SDL_EVENT_KEY_DOWN && !e.key.repeat) {
                    if (isNewHighScore) {
                        if (e.key.scancode == SDL_SCANCODE_BACKSPACE && !playerName.empty()) {
                            playerName.pop_back();
                        } else if (e.key.scancode == SDL_SCANCODE_RETURN || e.key.scancode == SDL_SCANCODE_KP_ENTER) {
                            if (playerName.empty()) playerName = "PLAYER";
                            scores.submit(game.score(), game.lines(), game.level(), game.elapsed(), playerName);
                            isNewHighScore = false;
                            SDL_StopTextInput(window);
                        }
                    } else {
                        if (e.key.scancode == SDL_SCANCODE_RETURN || e.key.scancode == SDL_SCANCODE_KP_ENTER || e.key.scancode == SDL_SCANCODE_SPACE) {
                            // Restart
                            game.reset(startLevelSelection);
                            state = AppState::Playing;
                            stateMgr.setState(state);
                        } else if (e.key.scancode == SDL_SCANCODE_ESCAPE) {
                            // Menu
                            state = AppState::Menu;
                            stateMgr.setState(state);
                        }
                    }
                }

                // Mouse handling remains in main loop for UI interactions
                if (e.type == SDL_EVENT_MOUSE_BUTTON_DOWN)
                {
                    float mx = (float)e.button.x, my = (float)e.button.y;
                    if (mx >= logicalVP.x && my >= logicalVP.y && mx <= logicalVP.x + logicalVP.w && my <= logicalVP.y + logicalVP.h)
                    {
                        float lx = (mx - logicalVP.x) / logicalScale, ly = (my - logicalVP.y) / logicalScale;
                        if (state == AppState::Menu)
                        {
                            // Compute content offsets (match MenuState centering)
                            float contentW = LOGICAL_W * logicalScale;
                            float contentH = LOGICAL_H * logicalScale;
                            float contentOffsetX = (winW - contentW) * 0.5f / logicalScale;
                            float contentOffsetY = (winH - contentH) * 0.5f / logicalScale;

                            if (showSettingsPopup) {
                                // Click anywhere closes settings popup
                                showSettingsPopup = false;
                            } else {
                                // Responsive Main menu buttons (match MenuState layout)
                                bool isSmall = ((LOGICAL_W * logicalScale) < 700.0f);
                                float btnW = isSmall ? (LOGICAL_W * 0.4f) : 300.0f;
                                float btnH = isSmall ? 60.0f : 70.0f;
                                float btnCX = LOGICAL_W * 0.5f + contentOffsetX;
                                const float btnYOffset = 40.0f; // must match MenuState offset
                                float btnCY = LOGICAL_H * 0.86f + contentOffsetY + btnYOffset;
                                float spacing = isSmall ? btnW * 1.15f : btnW * 1.05f;
                                std::array<SDL_FRect, 4> buttonRects{};
                                for (int i = 0; i < 4; ++i) {
                                    float center = btnCX + (static_cast<float>(i) - 1.5f) * spacing;
                                    buttonRects[i] = SDL_FRect{center - btnW / 2.0f, btnCY - btnH / 2.0f, btnW, btnH};
                                }

                                auto pointInRect = [&](const SDL_FRect& r) {
                                    return lx >= r.x && lx <= r.x + r.w && ly >= r.y && ly <= r.y + r.h;
                                };

                                if (pointInRect(buttonRects[0])) {
                                    startMenuPlayTransition();
                                } else if (pointInRect(buttonRects[1])) {
                                    state = AppState::LevelSelector;
                                    stateMgr.setState(state);
                                } else if (pointInRect(buttonRects[2])) {
                                    state = AppState::Options;
                                    stateMgr.setState(state);
                                } else if (pointInRect(buttonRects[3])) {
                                    showExitConfirmPopup = true;
                                    exitPopupSelectedButton = 1;
                                }
                                
                                // Settings button (gear icon area - top right)
                                SDL_FRect settingsBtn{LOGICAL_W - 60, 10, 50, 30};
                                if (lx >= settingsBtn.x && lx <= settingsBtn.x + settingsBtn.w && ly >= settingsBtn.y && ly <= settingsBtn.y + settingsBtn.h)
                                {
                                    showSettingsPopup = true;
                                }
                            }
                        }
                        else if (state == AppState::LevelSelect)
                            startLevelSelection = (startLevelSelection + 1) % 20;
                        else if (state == AppState::GameOver) {
                            state = AppState::Menu;
                            stateMgr.setState(state);
                        }
                        else if (state == AppState::Playing && showExitConfirmPopup) {
                            // Convert mouse to logical coordinates and to content-local coords
                            float lx = (mx - logicalVP.x) / logicalScale;
                            float ly = (my - logicalVP.y) / logicalScale;
                            // Compute content offsets (same as in render path)
                            float contentW = LOGICAL_W * logicalScale;
                            float contentH = LOGICAL_H * logicalScale;
                            float contentOffsetX = (winW - contentW) * 0.5f / logicalScale;
                            float contentOffsetY = (winH - contentH) * 0.5f / logicalScale;
                            // Map to content-local logical coords (what drawing code uses)
                            float localX = lx - contentOffsetX;
                            float localY = ly - contentOffsetY;

                            // Popup rect in logical coordinates (content-local)
                            float popupW = 400, popupH = 200;
                            float popupX = (LOGICAL_W - popupW) / 2.0f;
                            float popupY = (LOGICAL_H - popupH) / 2.0f;
                            // Simple Yes/No buttons
                            float btnW = 120.0f, btnH = 40.0f;
                            float yesX = popupX + popupW * 0.25f - btnW / 2.0f;
                            float noX = popupX + popupW * 0.75f - btnW / 2.0f;
                            float btnY = popupY + popupH - btnH - 20.0f;

                            if (localX >= popupX && localX <= popupX + popupW && localY >= popupY && localY <= popupY + popupH) {
                                // Click inside popup - check buttons
                                if (localX >= yesX && localX <= yesX + btnW && localY >= btnY && localY <= btnY + btnH) {
                                    // Yes -> go back to menu
                                    showExitConfirmPopup = false;
                                    game.reset(startLevelSelection);
                                    state = AppState::Menu;
                                    stateMgr.setState(state);
                                } else if (localX >= noX && localX <= noX + btnW && localY >= btnY && localY <= btnY + btnH) {
                                    // No -> close popup and resume
                                    showExitConfirmPopup = false;
                                    game.setPaused(false);
                                }
                            } else {
                                // Click outside popup: cancel
                                showExitConfirmPopup = false;
                                game.setPaused(false);
                            }
                        }
                        else if (state == AppState::Menu && showExitConfirmPopup) {
                            float contentW = LOGICAL_W * logicalScale;
                            float contentH = LOGICAL_H * logicalScale;
                            float contentOffsetX = (winW - contentW) * 0.5f / logicalScale;
                            float contentOffsetY = (winH - contentH) * 0.5f / logicalScale;
                            float popupW = 420.0f;
                            float popupH = 230.0f;
                            float popupX = (LOGICAL_W - popupW) * 0.5f + contentOffsetX;
                            float popupY = (LOGICAL_H - popupH) * 0.5f + contentOffsetY;
                            float btnW = 140.0f;
                            float btnH = 50.0f;
                            float yesX = popupX + popupW * 0.3f - btnW / 2.0f;
                            float noX = popupX + popupW * 0.7f - btnW / 2.0f;
                            float btnY = popupY + popupH - btnH - 30.0f;
                            bool insidePopup = lx >= popupX && lx <= popupX + popupW && ly >= popupY && ly <= popupY + popupH;
                            if (insidePopup) {
                                if (lx >= yesX && lx <= yesX + btnW && ly >= btnY && ly <= btnY + btnH) {
                                    showExitConfirmPopup = false;
                                    running = false;
                                } else if (lx >= noX && lx <= noX + btnW && ly >= btnY && ly <= btnY + btnH) {
                                    showExitConfirmPopup = false;
                                }
                            } else {
                                showExitConfirmPopup = false;
                            }
                        }
                    }
                }
                else if (e.type == SDL_EVENT_MOUSE_MOTION)
                {
                    float mx = (float)e.motion.x, my = (float)e.motion.y;
                    if (mx >= logicalVP.x && my >= logicalVP.y && mx <= logicalVP.x + logicalVP.w && my <= logicalVP.y + logicalVP.h)
                    {
                        float lx = (mx - logicalVP.x) / logicalScale, ly = (my - logicalVP.y) / logicalScale;
                        if (state == AppState::Menu && !showSettingsPopup)
                        {
                            // Compute content offsets and responsive buttons (match MenuState)
                            float contentW = LOGICAL_W * logicalScale;
                            float contentH = LOGICAL_H * logicalScale;
                            float contentOffsetX = (winW - contentW) * 0.5f / logicalScale;
                            float contentOffsetY = (winH - contentH) * 0.5f / logicalScale;
                            bool isSmall = ((LOGICAL_W * logicalScale) < 700.0f);
                            float btnW = isSmall ? (LOGICAL_W * 0.4f) : 300.0f;
                            float btnH = isSmall ? 60.0f : 70.0f;
                            float btnCX = LOGICAL_W * 0.5f + contentOffsetX;
                            const float btnYOffset = 40.0f; // must match MenuState offset
                            float btnCY = LOGICAL_H * 0.86f + contentOffsetY + btnYOffset;
                            float spacing = isSmall ? btnW * 1.15f : btnW * 1.05f;
                            hoveredButton = -1;
                            for (int i = 0; i < 4; ++i) {
                                float center = btnCX + (static_cast<float>(i) - 1.5f) * spacing;
                                SDL_FRect rect{center - btnW / 2.0f, btnCY - btnH / 2.0f, btnW, btnH};
                                if (lx >= rect.x && lx <= rect.x + rect.w && ly >= rect.y && ly <= rect.y + rect.h) {
                                    hoveredButton = i;
                                    break;
                                }
                            }
                        }
                    }
                }
            }
        }

        // --- Timing ---
        Uint64 now = SDL_GetPerformanceCounter();
        double frameMs = double(now - lastMs) * 1000.0 / double(SDL_GetPerformanceFrequency());
        lastMs = now;
        
        // Cap frame time to avoid spiral of death (max 100ms)
        if (frameMs > 100.0) frameMs = 100.0;
        const bool *ks = SDL_GetKeyboardState(nullptr);
        bool left = state == AppState::Playing && ks[SDL_SCANCODE_LEFT];
        bool right = state == AppState::Playing && ks[SDL_SCANCODE_RIGHT];
        bool down = state == AppState::Playing && ks[SDL_SCANCODE_DOWN];

        // Inform game about soft-drop state for scoring parity (1 point per cell when holding Down)
        if (state == AppState::Playing)
            game.setSoftDropping(down && !game.isPaused());
        else
            game.setSoftDropping(false);

        // Handle DAS/ARR
        int moveDir = 0;
        if (left && !right)
            moveDir = -1;
        else if (right && !left)
            moveDir = +1;

        if (moveDir != 0 && !game.isPaused())
        {
            if ((moveDir == -1 && leftHeld == false) || (moveDir == +1 && rightHeld == false))
            {
                game.move(moveDir);
                moveTimerMs = DAS;
            }
            else
            {
                moveTimerMs -= frameMs;
                if (moveTimerMs <= 0)
                {
                    game.move(moveDir);
                    moveTimerMs += ARR;
                }
            }
        }
        else
            moveTimerMs = 0;
        leftHeld = left;
        rightHeld = right;
        if (down && !game.isPaused())
            game.softDropBoost(frameMs);
        if (state == AppState::Playing)
        {
            if (!game.isPaused()) {
                game.tickGravity(frameMs);
                game.updateElapsedTime();
                
                // Update line effect and clear lines when animation completes
                if (lineEffect.isActive()) {
                    if (lineEffect.update(frameMs / 1000.0f)) {
                        // Effect is complete, now actually clear the lines
                        game.clearCompletedLines();
                    }
                }
            }
            if (game.isGameOver())
            {
                // Always allow name entry if score > 0
                if (game.score() > 0) {
                    isNewHighScore = true; // Reuse flag to trigger input mode
                    playerName = "";
                    SDL_StartTextInput(window);
                } else {
                    isNewHighScore = false;
                    scores.submit(game.score(), game.lines(), game.level(), game.elapsed());
                }
                state = AppState::GameOver;
                stateMgr.setState(state);
            }
        }
        else if (state == AppState::Loading)
        {
            // Initialize audio system and start background loading on first frame
            if (!musicLoaded && currentTrackLoading == 0) {
                Audio::instance().init();
                
                // Count actual music files first
                totalTracks = 0;
                for (int i = 1; i <= 100; ++i) { // Check up to 100 files
                    char buf[64];
                    std::snprintf(buf, sizeof(buf), "assets/music/music%03d.mp3", i);
                    
                    // Check if file exists
                    SDL_IOStream* file = SDL_IOFromFile(buf, "rb");
                    if (file) {
                        SDL_CloseIO(file);
                        totalTracks++;
                    } else {
                        break; // No more consecutive files
                    }
                }
                
                // Add all found tracks to the background loading queue
                for (int i = 1; i <= totalTracks; ++i) {
                    char buf[64];
                    std::snprintf(buf, sizeof(buf), "assets/music/music%03d.mp3", i);
                    Audio::instance().addTrackAsync(buf);
                }
                
                // Start background loading thread
                Audio::instance().startBackgroundLoading();
                currentTrackLoading = 1; // Mark as started
            }
            
            // Update progress based on background loading
            if (currentTrackLoading > 0 && !musicLoaded) {
                currentTrackLoading = Audio::instance().getLoadedTrackCount();
                // If loading is complete OR we've loaded all expected tracks (handles potential thread cleanup hang)
                if (Audio::instance().isLoadingComplete() || (totalTracks > 0 && currentTrackLoading >= totalTracks)) {
                    Audio::instance().shuffle(); // Shuffle once all tracks are loaded
                    musicLoaded = true;
                }
            }
            
            // Calculate comprehensive loading progress
            // Phase 1: Initial assets (textures, fonts) - 20%
            double assetProgress = 0.2; // Assets are loaded at startup
            
            // Phase 2: Music loading - 70% 
            double musicProgress = 0.0;
            if (totalTracks > 0) {
                musicProgress = musicLoaded ? 0.7 : std::min(0.7, (double)currentTrackLoading / totalTracks * 0.7);
            }
            
            // Phase 3: Final initialization - 10%
            double timeProgress = std::min(0.1, (now - loadStart) / 500.0); // Faster final phase
            
            loadingProgress = assetProgress + musicProgress + timeProgress;
            
            // Ensure we never exceed 100% and reach exactly 100% when everything is loaded
            loadingProgress = std::min(1.0, loadingProgress);
            
            // Fix floating point precision issues (0.2 + 0.7 + 0.1 can be 0.9999...)
            if (loadingProgress > 0.99) loadingProgress = 1.0;

            if (musicLoaded && timeProgress >= 0.1) {
                loadingProgress = 1.0;
            }
            
            if (loadingProgress >= 1.0 && musicLoaded) {
                state = AppState::Menu;
                stateMgr.setState(state);
            }
        }
        if (state == AppState::Menu || state == AppState::Playing)
        {
            if (!musicStarted && musicLoaded)
            {
                // Load menu track once on first menu entry (in background to avoid blocking)
                static bool menuTrackLoaded = false;
                if (!menuTrackLoaded) {
                    std::thread([]() {
                        Audio::instance().setMenuTrack("assets/music/Every Block You Take.mp3");
                    }).detach();
                    menuTrackLoaded = true;
                }
                
                // Start appropriate music based on state
                if (state == AppState::Menu) {
                    Audio::instance().playMenuMusic();
                } else {
                    Audio::instance().playGameMusic();
                }
                musicStarted = true;
            }
        }
        
        // Handle music transitions between states
        static AppState previousState = AppState::Loading;
        if (state != previousState && musicStarted) {
            if (state == AppState::Menu && previousState == AppState::Playing) {
                // Switched from game to menu
                Audio::instance().playMenuMusic();
            } else if (state == AppState::Playing && previousState == AppState::Menu) {
                // Switched from menu to game
                Audio::instance().playGameMusic();
            }
        }
        previousState = state;
        
        // Update starfields based on current state
        if (state == AppState::Loading) {
            starfield3D.update(float(frameMs / 1000.0f));
            starfield3D.resize(logicalVP.w, logicalVP.h); // Update for window resize
        } else {
            starfield.update(float(frameMs / 1000.0f), logicalVP.x * 2 + logicalVP.w, logicalVP.y * 2 + logicalVP.h);
        }

        // Advance level background fade if a next texture is queued
        updateLevelBackgroundFade(levelBackgrounds, float(frameMs));
        
        // Update intro animations
        if (state == AppState::Menu) {
            logoAnimCounter += frameMs * 0.0008; // Animation speed
            updateFireworks(frameMs);
        }

        // --- Per-state update hooks (allow states to manage logic incrementally)
        switch (stateMgr.getState()) {
            case AppState::Loading:
                loadingState->update(frameMs);
                break;
            case AppState::Menu:
                menuState->update(frameMs);
                break;
            case AppState::Options:
                optionsState->update(frameMs);
                break;
            case AppState::LevelSelector:
                levelSelectorState->update(frameMs);
                break;
            case AppState::Playing:
                playingState->update(frameMs);
                break;
            default:
                break;
        }

        if (menuFadePhase == MenuFadePhase::FadeOut) {
            menuFadeClockMs += frameMs;
            menuFadeAlpha = std::min(1.0f, float(menuFadeClockMs / MENU_PLAY_FADE_DURATION_MS));
            if (menuFadeClockMs >= MENU_PLAY_FADE_DURATION_MS) {
                if (menuFadeTarget == AppState::Playing) {
                    state = menuFadeTarget;
                    stateMgr.setState(state);
                    menuPlayCountdownArmed = true;
                    gameplayCountdownActive = false;
                    gameplayCountdownIndex = 0;
                    gameplayCountdownElapsed = 0.0;
                    game.setPaused(true);
                }
                menuFadePhase = MenuFadePhase::FadeIn;
                menuFadeClockMs = MENU_PLAY_FADE_DURATION_MS;
                menuFadeAlpha = 1.0f;
            }
        } else if (menuFadePhase == MenuFadePhase::FadeIn) {
            menuFadeClockMs -= frameMs;
            menuFadeAlpha = std::max(0.0f, float(menuFadeClockMs / MENU_PLAY_FADE_DURATION_MS));
            if (menuFadeClockMs <= 0.0) {
                menuFadePhase = MenuFadePhase::None;
                menuFadeClockMs = 0.0;
                menuFadeAlpha = 0.0f;
            }
        }

        if (menuFadePhase == MenuFadePhase::None && menuPlayCountdownArmed && !gameplayCountdownActive && state == AppState::Playing) {
            gameplayCountdownActive = true;
            menuPlayCountdownArmed = false;
            gameplayCountdownElapsed = 0.0;
            gameplayCountdownIndex = 0;
            game.setPaused(true);
        }

        if (gameplayCountdownActive && state == AppState::Playing) {
            gameplayCountdownElapsed += frameMs;
            if (gameplayCountdownElapsed >= GAMEPLAY_COUNTDOWN_STEP_MS) {
                gameplayCountdownElapsed -= GAMEPLAY_COUNTDOWN_STEP_MS;
                ++gameplayCountdownIndex;
                if (gameplayCountdownIndex >= static_cast<int>(GAMEPLAY_COUNTDOWN_LABELS.size())) {
                    gameplayCountdownActive = false;
                    gameplayCountdownElapsed = 0.0;
                    gameplayCountdownIndex = 0;
                    game.setPaused(false);
                }
            }
        }

        if (state != AppState::Playing && gameplayCountdownActive) {
            gameplayCountdownActive = false;
            menuPlayCountdownArmed = false;
            gameplayCountdownElapsed = 0.0;
            gameplayCountdownIndex = 0;
            game.setPaused(false);
        }

        // --- Render ---
        SDL_SetRenderViewport(renderer, nullptr);
        SDL_SetRenderDrawColor(renderer, 12, 12, 16, 255);
        SDL_RenderClear(renderer);
        
    // Draw level-based background for gameplay, starfield for other states
    if (state == AppState::Playing) {
        int bgLevel = std::clamp(game.level(), 0, 32);
        queueLevelBackground(levelBackgrounds, renderer, bgLevel);
        renderLevelBackgrounds(levelBackgrounds, renderer, winW, winH);
    } else if (state == AppState::Loading) {
        // Use 3D starfield for loading screen (full screen)
        starfield3D.draw(renderer);
    } else if (state == AppState::Menu || state == AppState::LevelSelector || state == AppState::Options) {
        // Use static background for menu, stretched to window; no starfield on sides
        if (backgroundTex) {
            SDL_FRect fullRect = { 0, 0, (float)winW, (float)winH };
            SDL_RenderTexture(renderer, backgroundTex, nullptr, &fullRect);
        }
    } else {
        // Use regular starfield for other states (not gameplay)
        starfield.draw(renderer);
    }
        SDL_SetRenderViewport(renderer, &logicalVP);
        SDL_SetRenderScale(renderer, logicalScale, logicalScale);

        switch (state)
        {
        case AppState::Loading:
        {
            // Calculate actual content area (centered within the window)
            float contentScale = logicalScale;
            float contentW = LOGICAL_W * contentScale;
            float contentH = LOGICAL_H * contentScale;
            float contentOffsetX = (winW - contentW) * 0.5f / contentScale;
            float contentOffsetY = (winH - contentH) * 0.5f / contentScale;
            
            auto drawRect = [&](float x, float y, float w, float h, SDL_Color c)
            { SDL_SetRenderDrawColor(renderer,c.r,c.g,c.b,c.a); SDL_FRect fr{x + contentOffsetX, y + contentOffsetY, w, h}; SDL_RenderFillRect(renderer,&fr); };
            
            // Calculate dimensions for perfect centering (like JavaScript version)
            const bool isLimitedHeight = LOGICAL_H < 450;
            const float logoHeight = logoTex ? (isLimitedHeight ? LOGICAL_H * 0.25f : LOGICAL_H * 0.4f) : 0;
            const float loadingTextHeight = 20; // Height of "LOADING" text (match JS)
            const float barHeight = 20; // Loading bar height (match JS)
            const float barPaddingVertical = isLimitedHeight ? 15 : 35;
            const float percentTextHeight = 24; // Height of percentage text
            const float spacingBetweenElements = isLimitedHeight ? 5 : 15;
            
            // Total content height
            const float totalContentHeight = logoHeight + 
                                           (logoHeight > 0 ? spacingBetweenElements : 0) +
                                           loadingTextHeight + 
                                           barPaddingVertical + 
                                           barHeight + 
                                           spacingBetweenElements + 
                                           percentTextHeight;
            
            // Start Y position for perfect vertical centering
            float currentY = (LOGICAL_H - totalContentHeight) / 2.0f;
            
            // Draw logo (centered, static like JavaScript version)
            if (logoTex)
            {
                // Use the same original large logo dimensions as JS (we used a half-size BMP previously)
                const int lw = 872, lh = 273;

                // Cap logo width similar to JS UI.MAX_LOGO_WIDTH (600) and available screen space
                const float maxLogoWidth = std::min(LOGICAL_W * 0.9f, 600.0f);
                const float availableHeight = isLimitedHeight ? LOGICAL_H * 0.25f : LOGICAL_H * 0.4f;
                const float availableWidth = maxLogoWidth;

                const float scaleFactorWidth = availableWidth / static_cast<float>(lw);
                const float scaleFactorHeight = availableHeight / static_cast<float>(lh);
                const float scaleFactor = std::min(scaleFactorWidth, scaleFactorHeight);

                const float displayWidth = lw * scaleFactor;
                const float displayHeight = lh * scaleFactor;
                const float logoX = (LOGICAL_W - displayWidth) / 2.0f;
                
                SDL_FRect dst{logoX + contentOffsetX, currentY + contentOffsetY, displayWidth, displayHeight};
                SDL_RenderTexture(renderer, logoTex, nullptr, &dst);
                
                currentY += displayHeight + spacingBetweenElements;
            }
            
            // Draw "LOADING" text (centered, using pixel font)
            const char* loadingText = "LOADING";
            float textWidth = strlen(loadingText) * 12.0f; // Approximate width for pixel font
            float textX = (LOGICAL_W - textWidth) / 2.0f;
            pixelFont.draw(renderer, textX + contentOffsetX, currentY + contentOffsetY, loadingText, 1.0f, {255, 204, 0, 255});
            
            currentY += loadingTextHeight + barPaddingVertical;
            
            // Draw loading bar (like JavaScript version)
            const int barW = 400, barH = 20;
            const int bx = (LOGICAL_W - barW) / 2;
            
            // Bar border (dark gray) - using drawRect which adds content offset
            drawRect(bx - 3, currentY - 3, barW + 6, barH + 6, {68, 68, 80, 255});
            
            // Bar background (darker gray)
            drawRect(bx, currentY, barW, barH, {34, 34, 34, 255});
            
            // Progress bar (gold color)
            drawRect(bx, currentY, int(barW * loadingProgress), barH, {255, 204, 0, 255});
            
            currentY += barH + spacingBetweenElements;
            
            // Draw percentage text (centered, using pixel font)
            int percentage = int(loadingProgress * 100);
            char percentText[16];
            std::snprintf(percentText, sizeof(percentText), "%d%%", percentage);
            
            float percentWidth = strlen(percentText) * 12.0f; // Approximate width for pixel font
            float percentX = (LOGICAL_W - percentWidth) / 2.0f;
            pixelFont.draw(renderer, percentX + contentOffsetX, currentY + contentOffsetY, percentText, 1.5f, {255, 204, 0, 255});
        }
        break;
        case AppState::Menu:
            // Delegate full menu rendering to MenuState object now
            menuState->render(renderer, logicalScale, logicalVP);
            break;
        case AppState::Options:
            optionsState->render(renderer, logicalScale, logicalVP);
            break;
        case AppState::LevelSelector:
            // Delegate level selector rendering to LevelSelectorState
            levelSelectorState->render(renderer, logicalScale, logicalVP);
            break;
        case AppState::LevelSelect:
        {
            const std::string title = "SELECT LEVEL";
            int tW = 0, tH = 0;
            font.measure(title, 2.5f, tW, tH);
            float titleX = (LOGICAL_W - (float)tW) / 2.0f;
            font.draw(renderer, titleX, 80, title, 2.5f, SDL_Color{255, 220, 0, 255});
            
            char buf[64];
            std::snprintf(buf, sizeof(buf), "LEVEL: %d", startLevelSelection);
            font.draw(renderer, LOGICAL_W * 0.5f - 80, 180, buf, 2.0f, SDL_Color{200, 240, 255, 255});
            font.draw(renderer, LOGICAL_W * 0.5f - 180, 260, "ARROWS CHANGE  ENTER=OK  ESC=BACK", 1.2f, SDL_Color{200, 200, 220, 255});
        }
            break;
        case AppState::Playing:
            playingState->render(renderer, logicalScale, logicalVP);
            break;
        case AppState::GameOver:
            // Draw the game state in the background
            GameRenderer::renderPlayingState(
                renderer,
                &game,
                &pixelFont,
                &lineEffect,
                blocksTex,
                (float)LOGICAL_W,
                (float)LOGICAL_H,
                logicalScale,
                (float)winW,
                (float)winH
            );

            // Draw Game Over Overlay
            {
                // 1. Dim the background
                SDL_SetRenderViewport(renderer, nullptr); // Use window coordinates for full screen dim
                SDL_SetRenderDrawColor(renderer, 0, 0, 0, 180); // Dark semi-transparent
                SDL_FRect fullWin{0.f, 0.f, (float)winW, (float)winH};
                SDL_RenderFillRect(renderer, &fullWin);
                
                // Restore logical viewport
                SDL_SetRenderViewport(renderer, &logicalVP);
                SDL_SetRenderScale(renderer, logicalScale, logicalScale);

                // 2. Calculate content offsets (same as in GameRenderer)
                float contentScale = logicalScale;
                float contentW = LOGICAL_W * contentScale;
                float contentH = LOGICAL_H * contentScale;
                float contentOffsetX = (winW - contentW) * 0.5f / contentScale;
                float contentOffsetY = (winH - contentH) * 0.5f / contentScale;

                // 3. Draw Game Over Box
                float boxW = 500.0f;
                float boxH = 350.0f;
                float boxX = (LOGICAL_W - boxW) * 0.5f;
                float boxY = (LOGICAL_H - boxH) * 0.5f;

                // Draw box background
                SDL_SetRenderDrawColor(renderer, 20, 25, 35, 255);
                SDL_FRect boxRect{boxX + contentOffsetX, boxY + contentOffsetY, boxW, boxH};
                SDL_RenderFillRect(renderer, &boxRect);
                
                // Draw box border
                SDL_SetRenderDrawColor(renderer, 100, 120, 200, 255);
                SDL_FRect borderRect{boxX + contentOffsetX - 3, boxY + contentOffsetY - 3, boxW + 6, boxH + 6};
                SDL_RenderFillRect(renderer, &borderRect); // Use FillRect for border background effect
                SDL_SetRenderDrawColor(renderer, 20, 25, 35, 255);
                SDL_RenderFillRect(renderer, &boxRect); // Redraw background on top of border rect

                // 4. Draw Text
                // 4. Draw Text
                // Title
                bool realHighScore = scores.isHighScore(game.score());
                const char* title = realHighScore ? "NEW HIGH SCORE!" : "GAME OVER";
                int tW=0, tH=0; pixelFont.measure(title, 2.0f, tW, tH);
                pixelFont.draw(renderer, boxX + (boxW - tW) * 0.5f + contentOffsetX, boxY + 40 + contentOffsetY, title, 2.0f, realHighScore ? SDL_Color{255, 220, 0, 255} : SDL_Color{255, 60, 60, 255});

                // Score
                char scoreStr[64];
                snprintf(scoreStr, sizeof(scoreStr), "SCORE: %d", game.score());
                int sW=0, sH=0; pixelFont.measure(scoreStr, 1.2f, sW, sH);
                pixelFont.draw(renderer, boxX + (boxW - sW) * 0.5f + contentOffsetX, boxY + 100 + contentOffsetY, scoreStr, 1.2f, {255, 255, 255, 255});

                if (isNewHighScore) {
                    // Name Entry
                    const char* enterName = "ENTER NAME:";
                    int enW=0, enH=0; pixelFont.measure(enterName, 1.0f, enW, enH);
                    pixelFont.draw(renderer, boxX + (boxW - enW) * 0.5f + contentOffsetX, boxY + 160 + contentOffsetY, enterName, 1.0f, {200, 200, 220, 255});

                    // Input box
                    float inputW = 300.0f;
                    float inputH = 40.0f;
                    float inputX = boxX + (boxW - inputW) * 0.5f;
                    float inputY = boxY + 200.0f;
                    
                    SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255);
                    SDL_FRect inputRect{inputX + contentOffsetX, inputY + contentOffsetY, inputW, inputH};
                    SDL_RenderFillRect(renderer, &inputRect);
                    
                    SDL_SetRenderDrawColor(renderer, 255, 220, 0, 255);
                    SDL_RenderRect(renderer, &inputRect);

                    // Player Name (with cursor)
                    std::string display = playerName;
                    if ((SDL_GetTicks() / 500) % 2 == 0) display += "_"; // Blink cursor
                    
                    int nW=0, nH=0; pixelFont.measure(display, 1.2f, nW, nH);
                    pixelFont.draw(renderer, inputX + (inputW - nW) * 0.5f + contentOffsetX, inputY + (inputH - nH) * 0.5f + contentOffsetY, display, 1.2f, {255, 255, 255, 255});

                    // Hint
                    const char* hint = "PRESS ENTER TO SUBMIT";
                    int hW=0, hH=0; pixelFont.measure(hint, 0.8f, hW, hH);
                    pixelFont.draw(renderer, boxX + (boxW - hW) * 0.5f + contentOffsetX, boxY + 280 + contentOffsetY, hint, 0.8f, {150, 150, 150, 255});

                } else {
                    // Lines
                    char linesStr[64];
                    snprintf(linesStr, sizeof(linesStr), "LINES: %d", game.lines());
                    int lW=0, lH=0; pixelFont.measure(linesStr, 1.2f, lW, lH);
                    pixelFont.draw(renderer, boxX + (boxW - lW) * 0.5f + contentOffsetX, boxY + 140 + contentOffsetY, linesStr, 1.2f, {255, 255, 255, 255});
                    
                    // Level
                    char levelStr[64];
                    snprintf(levelStr, sizeof(levelStr), "LEVEL: %d", game.level());
                    int lvW=0, lvH=0; pixelFont.measure(levelStr, 1.2f, lvW, lvH);
                    pixelFont.draw(renderer, boxX + (boxW - lvW) * 0.5f + contentOffsetX, boxY + 180 + contentOffsetY, levelStr, 1.2f, {255, 255, 255, 255});

                    // Instructions
                    const char* instr = "PRESS ENTER TO RESTART";
                    int iW=0, iH=0; pixelFont.measure(instr, 0.9f, iW, iH);
                    pixelFont.draw(renderer, boxX + (boxW - iW) * 0.5f + contentOffsetX, boxY + 260 + contentOffsetY, instr, 0.9f, {255, 220, 0, 255});
                    
                    const char* instr2 = "PRESS ESC FOR MENU";
                    int iW2=0, iH2=0; pixelFont.measure(instr2, 0.9f, iW2, iH2);
                    pixelFont.draw(renderer, boxX + (boxW - iW2) * 0.5f + contentOffsetX, boxY + 290 + contentOffsetY, instr2, 0.9f, {255, 220, 0, 255});
                }
            }
            break;
        }

        if (menuFadeAlpha > 0.0f) {
            SDL_SetRenderViewport(renderer, nullptr);
            SDL_SetRenderScale(renderer, 1.f, 1.f);
            SDL_SetRenderDrawBlendMode(renderer, SDL_BLENDMODE_BLEND);
            Uint8 alpha = Uint8(std::clamp(menuFadeAlpha, 0.0f, 1.0f) * 255.0f);
            SDL_SetRenderDrawColor(renderer, 0, 0, 0, alpha);
            SDL_FRect fadeRect{0.f, 0.f, (float)winW, (float)winH};
            SDL_RenderFillRect(renderer, &fadeRect);
            SDL_SetRenderDrawBlendMode(renderer, SDL_BLENDMODE_NONE);
            SDL_SetRenderViewport(renderer, &logicalVP);
            SDL_SetRenderScale(renderer, logicalScale, logicalScale);
        }

        if (gameplayCountdownActive && state == AppState::Playing) {
            // Switch to window coordinates for perfect centering in any resolution
            SDL_SetRenderViewport(renderer, nullptr);
            SDL_SetRenderScale(renderer, 1.f, 1.f);
            SDL_SetRenderDrawBlendMode(renderer, SDL_BLENDMODE_BLEND);

            int cappedIndex = std::min(gameplayCountdownIndex, static_cast<int>(GAMEPLAY_COUNTDOWN_LABELS.size()) - 1);
            const char* label = GAMEPLAY_COUNTDOWN_LABELS[cappedIndex];
            bool isFinalCue = (cappedIndex == static_cast<int>(GAMEPLAY_COUNTDOWN_LABELS.size()) - 1);
            float textScale = isFinalCue ? 4.5f : 5.0f; // Much bigger fonts for countdown
            int textW = 0, textH = 0;
            pixelFont.measure(label, textScale, textW, textH);
            
            // Center in actual window coordinates (works for any resolution/fullscreen)
            float textX = (winW - static_cast<float>(textW)) * 0.5f;
            float textY = (winH - static_cast<float>(textH)) * 0.5f;
            SDL_Color textColor = isFinalCue ? SDL_Color{255, 230, 90, 255} : SDL_Color{255, 255, 255, 255};
            pixelFont.draw(renderer, textX, textY, label, textScale, textColor);

            SDL_SetRenderDrawBlendMode(renderer, SDL_BLENDMODE_NONE);
        }

        SDL_RenderPresent(renderer);
        SDL_SetRenderScale(renderer, 1.f, 1.f);
    }
    if (logoTex)
        SDL_DestroyTexture(logoTex);
    if (backgroundTex)
        SDL_DestroyTexture(backgroundTex);
    resetLevelBackgrounds(levelBackgrounds);
    if (blocksTex)
        SDL_DestroyTexture(blocksTex);
    if (logoSmallTex)
        SDL_DestroyTexture(logoSmallTex);
    lineEffect.shutdown();
    Audio::instance().shutdown();
    SoundEffectManager::instance().shutdown();
    font.shutdown();
    TTF_Quit();
    SDL_DestroyRenderer(renderer);
    SDL_DestroyWindow(window);
    SDL_Quit();
    return 0;
}