diff --git a/public/assessment.html b/public/assessment.html
index bb93b13..4cf30b6 100644
--- a/public/assessment.html
+++ b/public/assessment.html
@@ -14,7 +14,7 @@
         <!-- Main Content -->
         <main class="main-content">
             <header class="content-header">
-                <h2>Gap Analysis</h2>
+                <h2 data-i18n="assessment.title">Gap Analysis NIS2</h2>
                 <div class="content-header-actions">
                     <button class="btn btn-outline btn-sm" id="btn-ai-analyze" style="display:none;" onclick="aiAnalyze()">
                         <svg viewBox="0 0 20 20" fill="currentColor" width="16" height="16"><path d="M5 2a1 1 0 011 1v1h1a1 1 0 010 2H6v1a1 1 0 01-2 0V6H3a1 1 0 010-2h1V3a1 1 0 011-1zm0 10a1 1 0 011 1v1h1a1 1 0 110 2H6v1a1 1 0 11-2 0v-1H3a1 1 0 110-2h1v-1a1 1 0 011-1zm7-10a1 1 0 01.967.744L14.146 7.2 17.5 8.512a1 1 0 010 1.836l-3.354 1.311-1.18 4.456a1 1 0 01-1.932 0L9.854 11.66 6.5 10.348a1 1 0 010-1.836l3.354-1.311 1.18-4.456A1 1 0 0112 2z"/></svg>
diff --git a/public/assets.html b/public/assets.html
index 433282f..1c5bbd2 100644
--- a/public/assets.html
+++ b/public/assets.html
@@ -261,7 +261,7 @@
 
         <main class="main-content">
             <header class="content-header">
-                <h2>Inventario Asset</h2>
+                <h2 data-i18n="assets.title">Inventario Asset</h2>
                 <div class="content-header-actions">
                     <span class="text-muted" style="font-size:0.8rem; margin-right:8px;">Art. 21.2.i NIS2</span>
                     <button class="btn btn-primary" onclick="showCreateAssetModal()">+ Nuovo Asset</button>
diff --git a/public/dashboard.html b/public/dashboard.html
index 68a8aee..127cbee 100644
--- a/public/dashboard.html
+++ b/public/dashboard.html
@@ -14,7 +14,7 @@
         <!-- Main Content -->
         <main class="main-content">
             <header class="content-header">
-                <h2>Dashboard</h2>
+                <h2 data-i18n="dashboard.title">Dashboard</h2>
                 <div class="content-header-actions">
                     <span class="text-muted" id="header-date"></span>
                 </div>
diff --git a/public/incidents.html b/public/incidents.html
index da9ccef..81beefb 100644
--- a/public/incidents.html
+++ b/public/incidents.html
@@ -262,7 +262,7 @@
 
         <main class="main-content">
             <header class="content-header">
-                <h2>Gestione Incidenti</h2>
+                <h2 data-i18n="incidents.title">Gestione Incidenti</h2>
                 <div class="content-header-actions">
                     <button class="btn btn-primary" onclick="showCreateIncidentModal()">+ Nuovo Incidente</button>
                 </div>
diff --git a/public/js/common.js b/public/js/common.js
index 0797e8c..2b66f72 100644
--- a/public/js/common.js
+++ b/public/js/common.js
@@ -183,33 +183,33 @@ function loadSidebar() {
 
     const navItems = [
         {
-            label: 'Principale',
+            label: 'Principale', i18nKey: 'nav.main',
             items: [
-                { name: 'Dashboard', href: 'dashboard.html', icon: iconGrid() },
-                { name: 'Gap Analysis', href: 'assessment.html', icon: iconClipboardCheck() },
+                { name: 'Dashboard',    href: 'dashboard.html',   icon: iconGrid(),           i18nKey: 'nav.dashboard' },
+                { name: 'Gap Analysis', href: 'assessment.html',  icon: iconClipboardCheck(), i18nKey: 'nav.gap_analysis' },
             ]
         },
         {
-            label: 'Gestione',
+            label: 'Gestione', i18nKey: 'nav.management',
             items: [
-                { name: 'Rischi', href: 'risks.html', icon: iconShieldExclamation() },
-                { name: 'Incidenti', href: 'incidents.html', icon: iconBell() },
-                { name: 'Policy', href: 'policies.html', icon: iconDocumentText() },
-                { name: 'Supply Chain', href: 'supply-chain.html', icon: iconLink() },
+                { name: 'Rischi',       href: 'risks.html',        icon: iconShieldExclamation(), i18nKey: 'nav.risks' },
+                { name: 'Incidenti',    href: 'incidents.html',    icon: iconBell(),              i18nKey: 'nav.incidents' },
+                { name: 'Policy',       href: 'policies.html',     icon: iconDocumentText(),      i18nKey: 'nav.policies' },
+                { name: 'Supply Chain', href: 'supply-chain.html', icon: iconLink(),              i18nKey: 'nav.supply_chain' },
             ]
         },
         {
-            label: 'Operativo',
+            label: 'Operativo', i18nKey: 'nav.operations',
             items: [
-                { name: 'Formazione', href: 'training.html', icon: iconAcademicCap() },
-                { name: 'Asset', href: 'assets.html', icon: iconServer() },
-                { name: 'Audit & Report', href: 'audit.html', icon: iconChartBar() },
+                { name: 'Formazione',    href: 'training.html', icon: iconAcademicCap(), i18nKey: 'nav.training' },
+                { name: 'Asset',         href: 'assets.html',   icon: iconServer(),      i18nKey: 'nav.assets' },
+                { name: 'Audit & Report',href: 'reports.html',    icon: iconChartBar(),    i18nKey: 'nav.audit' },
             ]
         },
         {
-            label: 'Sistema',
+            label: 'Sistema', i18nKey: 'nav.system',
             items: [
-                { name: 'Impostazioni', href: 'settings.html', icon: iconCog() },
+                { name: 'Impostazioni', href: 'settings.html',     icon: iconCog(),             i18nKey: 'nav.settings' },
                 { name: 'Architettura', href: 'architecture.html', icon: iconCubeTransparent() },
             ]
         }
@@ -236,10 +236,12 @@ function loadSidebar() {
     // Nav sections
     navHTML += '<nav class="sidebar-nav">';
     for (const section of navItems) {
-        navHTML += `<div class="sidebar-nav-label">${section.label}</div>`;
+        const sectionI18n = section.i18nKey ? ` data-i18n="${section.i18nKey}"` : '';
+        navHTML += `<div class="sidebar-nav-label"${sectionI18n}>${section.label}</div>`;
         for (const item of section.items) {
             const isActive = currentPage === item.href ? 'active' : '';
-            navHTML += `<a href="${item.href}" class="${isActive}">${item.icon}<span>${item.name}</span></a>`;
+            const spanI18n = item.i18nKey ? ` data-i18n="${item.i18nKey}"` : '';
+            navHTML += `<a href="${item.href}" class="${isActive}">${item.icon}<span${spanI18n}>${item.name}</span></a>`;
         }
     }
     navHTML += '</nav>';
@@ -248,8 +250,8 @@ function loadSidebar() {
     navHTML += `
         <div class="sidebar-footer">
             <div class="sidebar-lang-toggle" id="sidebar-lang-toggle">
-                <button class="lang-btn ${_getSavedLang() === 'it' ? 'active' : ''}" onclick="switchLang('it')" title="Italiano">IT</button>
-                <button class="lang-btn ${_getSavedLang() === 'en' ? 'active' : ''}" onclick="switchLang('en')" title="English">EN</button>
+                <button class="lang-btn ${_getSavedLang() === 'it' ? 'active' : ''}" onclick="switchLang('it')" title="Italiano" aria-label="Italiano">IT</button>
+                <button class="lang-btn ${_getSavedLang() === 'en' ? 'active' : ''}" onclick="switchLang('en')" title="English" aria-label="English">EN</button>
             </div>
             <div class="sidebar-user">
                 <div class="sidebar-user-avatar" id="sidebar-user-avatar">--</div>
diff --git a/public/policies.html b/public/policies.html
index ba8831e..3463d87 100644
--- a/public/policies.html
+++ b/public/policies.html
@@ -242,7 +242,7 @@
 
         <main class="main-content">
             <header class="content-header">
-                <h2>Policy</h2>
+                <h2 data-i18n="policies.title">Gestione Policy</h2>
                 <div class="content-header-actions">
                     <button class="btn btn-outline" onclick="openAIGenerateModal()">
                         <svg viewBox="0 0 20 20" fill="currentColor" width="16" height="16"><path d="M5 2a1 1 0 011 1v1h1a1 1 0 010 2H6v1a1 1 0 01-2 0V6H3a1 1 0 010-2h1V3a1 1 0 011-1zm0 10a1 1 0 011 1v1h1a1 1 0 110 2H6v1a1 1 0 11-2 0v-1H3a1 1 0 110-2h1v-1a1 1 0 011-1zm7-10a1 1 0 01.967.744L14.146 7.2 17.5 8.512a1 1 0 010 1.836l-3.354 1.311-1.18 4.456a1 1 0 01-1.932 0L9.854 11.66 6.5 10.348a1 1 0 010-1.836l3.354-1.311 1.18-4.456A1 1 0 0112 2z"/></svg>
diff --git a/public/reports.html b/public/reports.html
index 491aaa0..0c2213f 100644
--- a/public/reports.html
+++ b/public/reports.html
@@ -346,7 +346,7 @@
 
         <main class="main-content">
             <header class="content-header">
-                <h2>Audit e Report</h2>
+                <h2 data-i18n="audit.title">Audit &amp; Report</h2>
                 <div class="content-header-actions">
                     <button class="btn btn-primary" onclick="generateReport()">Genera Report</button>
                 </div>
diff --git a/public/risks.html b/public/risks.html
index 3188428..c89d382 100644
--- a/public/risks.html
+++ b/public/risks.html
@@ -301,7 +301,7 @@
 
         <main class="main-content">
             <header class="content-header">
-                <h2>Gestione Rischi</h2>
+                <h2 data-i18n="risks.title">Gestione Rischi</h2>
                 <div class="content-header-actions">
                     <div class="view-toggle" id="view-toggle">
                         <button class="active" onclick="switchView('table')">Tabella</button>
diff --git a/public/settings.html b/public/settings.html
index 99bca7d..97ecdf3 100644
--- a/public/settings.html
+++ b/public/settings.html
@@ -199,7 +199,7 @@
 
         <main class="main-content">
             <header class="content-header">
-                <h2>Impostazioni</h2>
+                <h2 data-i18n="settings.title">Impostazioni</h2>
                 <div class="content-header-actions">
                     <span class="text-muted" id="header-org-name"></span>
                 </div>
diff --git a/public/supply-chain.html b/public/supply-chain.html
index 2743c9a..450b95d 100644
--- a/public/supply-chain.html
+++ b/public/supply-chain.html
@@ -368,7 +368,7 @@
 
         <main class="main-content">
             <header class="content-header">
-                <h2>Supply Chain</h2>
+                <h2 data-i18n="supply_chain.title">Sicurezza Supply Chain</h2>
                 <div class="content-header-actions">
                     <button class="btn btn-primary" onclick="openCreateModal()">+ Nuovo Fornitore</button>
                 </div>
diff --git a/public/training.html b/public/training.html
index a8082b5..884b654 100644
--- a/public/training.html
+++ b/public/training.html
@@ -224,7 +224,7 @@
 
         <main class="main-content">
             <header class="content-header">
-                <h2>Formazione</h2>
+                <h2 data-i18n="training.title">Formazione e Awareness</h2>
                 <div class="content-header-actions">
                     <span class="text-muted" style="font-size:0.8rem; margin-right:8px;">Art. 20 NIS2</span>
                     <button class="btn btn-primary" onclick="showCreateCourseModal()">+ Nuovo Corso</button>