diff --git a/index.html b/index.html
index 791eb81..5a262a6 100644
--- a/index.html
+++ b/index.html
@@ -557,6 +557,7 @@
 
     <!-- Utils (global) -->
     <script src="/js/utils/logger.js"></script>
+    <script src="/js/core/state.js"></script>
     
     <!-- Main app (legacy - mantido para compatibilidade) -->
     <script src="/app.js"></script>
@@ -612,11 +613,9 @@
     <script src="/js/core/backup-manager.js"></script>
     <script src="/js/ui/toast-manager.js"></script>
     
-    <!-- Sistema de Teste de Persistência -->
-    <script src="/js/tests/test-persistencia.js"></script>
-    <script src="/js/tests/test-persistencia-simples.js"></script>
-    <script src="/js/tests/verificador-persistencia.js"></script>
-    <script src="/js/tests/teste-manual-disponibilidade.js"></script>
+    <!-- Test Suite -->
+    <script src="/js/tests/test-backup-log.js"></script>
+    <script src="/js/tests/test-suite.js"></script>
 
     <!-- Menu Mobile (Hamburger no topbar, sidebar dropdown) -->
     <script type="module" src="/js/ui/mobile-menu.js"></script>
diff --git a/public/app.js b/public/app.js
index f2c49f9..5b69aca 100644
--- a/public/app.js
+++ b/public/app.js
@@ -6,17 +6,7 @@
 // Logger disponível globalmente (carregado antes em logger.js)
 // Usar window.Logger.info('mensagem') para logs controlados
 
-// Import state from modules (userPreferences only - appState is still global for legacy)
-import { userPreferences, loadPreferences, savePreferences, adminConfig } from './js/core/state.js';
-
-// Make available globally for legacy code
-window.userPreferences = userPreferences;
-window.loadPreferences = loadPreferences;
-window.savePreferences = savePreferences;
-window.adminConfig = adminConfig;
-
-// In-memory data storage (legacy - still global for compatibility)
-const appState = {
+// State e config disponíveis globalmente via script state.js (carregado antes)
 
 // ========================================
 // CSV MAPPING AND LOADING FUNCTIONS v6.6
diff --git a/public/js/core/state.js b/public/js/core/state.js
index 5abb320..f53ee89 100644
--- a/public/js/core/state.js
+++ b/public/js/core/state.js
@@ -1,135 +1,152 @@
-/**
- * Application State Management
- * Central state for the entire application
- */
-
-// Main application state
-export const appState = {
-    history: [],
-    favorites: [],
-    budgetItems: [],
-    currentSection: 'cev',
-    currentTheme: 'dark',
-    expertMode: false,
-    currentSidebarTab: 0
-};
-
-// User preferences (persisted to localStorage)
-export let userPreferences = {
-    theme: 'dark',
-    colorScheme: 'default',
-    fontSize: 'medium',
-    fontFamily: 'default'
-};
-
-// Load preferences from localStorage
-export function loadPreferences() {
-    try {
-        const saved = localStorage.getItem('acoCalcPreferences');
-        if (saved) {
-            userPreferences = { ...userPreferences, ...JSON.parse(saved) };
-        }
-    } catch (e) {
-        console.warn('Não foi possível carregar preferências:', e);
-    }
-}
-
-// Save preferences to localStorage
-export function savePreferences() {
-    try {
-        localStorage.setItem('acoCalcPreferences', JSON.stringify(userPreferences));
-    } catch (e) {
-        console.warn('Não foi possível salvar preferências:', e);
-    }
-}
-
-// Admin configuration
-export const adminConfig = {
-    appName: 'SteelBase',
-    appSubtitle: 'Plataforma Técnica com Base de Dados de Materiais Brasileiros',
-    footerText: '© 2025 SteelBase v7.5 PROFESSIONAL EDITION - Plataforma Técnica com Base de Dados de Materiais Brasileiros',
-    themeDefault: 'escuro',
-    modeDefault: 'simples',
-    toolsVisibility: {
-        'cev': true,
-        'seletor': true,
-        'equivalencias': false,
-        'comparativo': false,
-        'parafusos': true,
-        'layout': true,
-        'parafuso-vs-solda': false,
-        'preaquecimento': true,
-        'dureza': true,
-        'charpy': true,
-        'certificado': false,
-        'ultrassom': false,
-        'area-pintura': true,
-        'consumo-tinta': true,
-        'galvanizacao': false,
-        'custo-pintura': true,
-        'secagem': false,
-        'inspecao-pintura': false,
-        'orcamento': true,
-        'peso-rigging': false,
-        'referencia': false
-    }
-};
-
-/**
- * Update app state
- * @param {string} key - State key
- * @param {any} value - New value
- */
-export function updateState(key, value) {
-    appState[key] = value;
-}
-
-/**
- * Get state value
- * @param {string} key - State key
- * @returns {any} State value
- */
-export function getState(key) {
-    return appState[key];
-}
-
-/**
- * Update user preferences
- * @param {string} key - Preference key
- * @param {any} value - New value
- */
-export function updatePreference(key, value) {
-    userPreferences[key] = value;
-}
-
-/**
- * Get preference value
- * @param {string} key - Preference key
- * @returns {any} Preference value
- */
-export function getPreference(key) {
-    return userPreferences[key];
-}
-
-/**
- * Check if localStorage is available and has space
- * @returns {object} Storage status
- */
-export function checkStorage() {
-    try {
-        const testKey = '__storage_test__';
-        localStorage.setItem(testKey, testKey);
-        localStorage.removeItem(testKey);
-        
-        let totalSize = 0;
-        for (let key in localStorage) {
-            if (localStorage.hasOwnProperty(key)) {
-                totalSize += localStorage[key].length * 2;
-            }
-        }
-        
-        return { available: true, usedBytes: totalSize };
-    } catch (error) {
-        return { available: false, error: error.message };
-    }
-}
+/**
+ * Application State Management
+ * Central state for the entire application
+ */
+
+// Main application state
+var appState = {
+    history: [],
+    favorites: [],
+    budgetItems: [],
+    currentSection: 'cev',
+    currentTheme: 'dark',
+    expertMode: false,
+    currentSidebarTab: 0
+};
+
+// User preferences (persisted to localStorage)
+var userPreferences = {
+    theme: 'dark',
+    colorScheme: 'default',
+    fontSize: 'medium',
+    fontFamily: 'default'
+};
+
+// Load preferences from localStorage
+function loadPreferences() {
+    try {
+        var saved = localStorage.getItem('acoCalcPreferences');
+        if (saved) {
+            var parsed = JSON.parse(saved);
+            for (var key in parsed) {
+                if (parsed.hasOwnProperty(key)) {
+                    userPreferences[key] = parsed[key];
+                }
+            }
+        }
+    } catch (e) {
+        console.warn('Nao foi possivel carregar preferencias:', e);
+    }
+}
+
+// Save preferences to localStorage
+function savePreferences() {
+    try {
+        localStorage.setItem('acoCalcPreferences', JSON.stringify(userPreferences));
+    } catch (e) {
+        console.warn('Nao foi possivel salvar preferencias:', e);
+    }
+}
+
+// Admin configuration
+var adminConfig = {
+    appName: 'SteelBase',
+    appSubtitle: 'Plataforma Tecnica com Base de Dados de Materiais Brasileiros',
+    footerText: '© 2025 SteelBase v7.5 PROFESSIONAL EDITION - Plataforma Tecnica com Base de Dados de Materiais Brasileiros',
+    themeDefault: 'escuro',
+    modeDefault: 'simples',
+    toolsVisibility: {
+        'cev': true,
+        'seletor': true,
+        'equivalencias': false,
+        'comparativo': false,
+        'parafusos': true,
+        'layout': true,
+        'parafuso-vs-solda': false,
+        'preaquecimento': true,
+        'dureza': true,
+        'charpy': true,
+        'certificado': false,
+        'ultrassom': false,
+        'area-pintura': true,
+        'consumo-tinta': true,
+        'galvanizacao': false,
+        'custo-pintura': true,
+        'secagem': false,
+        'inspecao-pintura': false,
+        'orcamento': true,
+        'peso-rigging': false,
+        'referencia': false
+    }
+};
+
+/**
+ * Update app state
+ * @param {string} key - State key
+ * @param {any} value - New value
+ */
+function updateState(key, value) {
+    appState[key] = value;
+}
+
+/**
+ * Get state value
+ * @param {string} key - State key
+ * @returns {any} State value
+ */
+function getState(key) {
+    return appState[key];
+}
+
+/**
+ * Update user preferences
+ * @param {string} key - Preference key
+ * @param {any} value - New value
+ */
+function updatePreference(key, value) {
+    userPreferences[key] = value;
+}
+
+/**
+ * Get preference value
+ * @param {string} key - Preference key
+ * @returns {any} Preference value
+ */
+function getPreference(key) {
+    return userPreferences[key];
+}
+
+/**
+ * Check if localStorage is available and has space
+ * @returns {object} Storage status
+ */
+function checkStorage() {
+    try {
+        var testKey = '__storage_test__';
+        localStorage.setItem(testKey, testKey);
+        localStorage.removeItem(testKey);
+        
+        var totalSize = 0;
+        for (var key in localStorage) {
+            if (localStorage.hasOwnProperty(key)) {
+                totalSize += localStorage[key].length * 2;
+            }
+        }
+        
+        return { available: true, usedBytes: totalSize };
+    } catch (error) {
+        return { available: false, error: error.message };
+    }
+}
+
+// Make available globally
+window.appState = appState;
+window.userPreferences = userPreferences;
+window.loadPreferences = loadPreferences;
+window.savePreferences = savePreferences;
+window.adminConfig = adminConfig;
+window.updateState = updateState;
+window.getState = getState;
+window.updatePreference = updatePreference;
+window.getPreference = getPreference;
+window.checkStorage = checkStorage;
\ No newline at end of file
diff --git a/public/js/utils/logger.js b/public/js/utils/logger.js
index 4a91f71..f6732a8 100644
--- a/public/js/utils/logger.js
+++ b/public/js/utils/logger.js
@@ -2,15 +2,15 @@
  * Logger com níveis de debug
  * Substitui console.log dispersos pelo código
  */
-const Logger = (function() {
-    const LEVELS = {
+var Logger = (function() {
+    var LEVELS = {
         debug: 0,
         info: 1,
         warn: 2,
         error: 3
     };
     
-    let currentLevel = LEVELS.info;
+    var currentLevel = LEVELS.info;
     
     function setLevel(level) {
         if (LEVELS[level] !== undefined) {
@@ -22,26 +22,26 @@ const Logger = (function() {
         return LEVELS[level] >= currentLevel;
     }
     
-    function formatMessage(level, ...args) {
-        const timestamp = new Date().toISOString().slice(11, 19);
-        return `[${timestamp}] [${level.toUpperCase()}]`;
+    function formatMessage(level) {
+        var timestamp = new Date().toISOString().slice(11, 19);
+        return '[' + timestamp + '] [' + level.toUpperCase() + ']';
     }
     
     return {
-        debug: function(...args) {
-            if (shouldLog('debug')) console.debug(formatMessage('debug', ...args), ...args);
+        debug: function() {
+            if (shouldLog('debug')) console.debug(formatMessage('debug'), arguments);
         },
         
-        info: function(...args) {
-            if (shouldLog('info')) console.info(formatMessage('info', ...args), ...args);
+        info: function() {
+            if (shouldLog('info')) console.info(formatMessage('info'), arguments);
         },
         
-        warn: function(...args) {
-            if (shouldLog('warn')) console.warn(formatMessage('warn', ...args), ...args);
+        warn: function() {
+            if (shouldLog('warn')) console.warn(formatMessage('warn'), arguments);
         },
         
-        error: function(...args) {
-            if (shouldLog('error')) console.error(formatMessage('error', ...args), ...args);
+        error: function() {
+            if (shouldLog('error')) console.error(formatMessage('error'), arguments);
         },
         
         setLevel: setLevel,
@@ -56,5 +56,4 @@ const Logger = (function() {
     };
 })();
 
-window.Logger = Logger;
-export default Logger;
\ No newline at end of file
+window.Logger = Logger;
\ No newline at end of file