diff --git a/frontend/index.html b/frontend/index.html
index 10e89e6..03c9c69 100644
--- a/frontend/index.html
+++ b/frontend/index.html
@@ -1906,11 +1906,11 @@
                                 <h1 class="text-3xl font-bold mb-2" style="color: var(--text-primary);" x-text="appName"></h1>
                                 <p class="text-lg" style="color: var(--text-secondary);" x-text="t('app.tagline')"></p>
                                 <!-- Demo Mode Warning Banner -->
-                                <div x-data="{ showDemoBanner: false }" x-init="fetch('/api/config').then(r => r.json()).then(d => showDemoBanner = d.demoMode || false)" x-show="showDemoBanner" class="mt-4 flex items-center px-4 py-2.5 text-sm rounded-lg" style="background: linear-gradient(135deg, #ff6b6b 0%, #ff8e53 100%); color: white; font-weight: 500;">
+                                <div x-show="demoMode" class="mt-4 flex items-center px-4 py-2.5 text-sm rounded-lg" style="background: linear-gradient(135deg, #ff6b6b 0%, #ff8e53 100%); color: white; font-weight: 500;">
                                     <svg class="w-5 h-5 mr-2 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                                         <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-3L13.732 4c-.77-1.333-2.694-1.333-3.464 0L3.34 16c-.77 1.333.192 3 1.732 3z"></path>
                                     </svg>
-                                    <span><strong>DEMO MODE:</strong> Contents reset daily. Changes may be overwritten by other users.</span>
+                                    <span><strong x-text="t('demo.title') + ':'"></strong> <span x-text="t('demo.warning')"></span></span>
                                 </div>
                             </div>
                             
@@ -2148,11 +2148,11 @@
                         </div>
                         
                         <!-- Demo Mode Warning Banner -->
-                        <div x-data="{ showDemoBanner: false }" x-init="fetch('/api/config').then(r => r.json()).then(d => showDemoBanner = d.demoMode || false)" x-show="showDemoBanner" class="flex items-center px-3 py-1.5 text-xs rounded-lg" style="background: linear-gradient(135deg, #ff6b6b 0%, #ff8e53 100%); color: white; font-weight: 500;">
+                        <div x-show="demoMode" class="flex items-center px-3 py-1.5 text-xs rounded-lg" style="background: linear-gradient(135deg, #ff6b6b 0%, #ff8e53 100%); color: white; font-weight: 500;">
                             <svg class="w-4 h-4 mr-2 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                                 <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-3L13.732 4c-.77-1.333-2.694-1.333-3.464 0L3.34 16c-.77 1.333.192 3 1.732 3z"></path>
                             </svg>
-                            <span><strong>DEMO MODE:</strong> Contents reset daily. Changes may be overwritten by other users.</span>
+                            <span><strong x-text="t('demo.title') + ':'"></strong> <span x-text="t('demo.warning')"></span></span>
                         </div>
                         
                         <div class="flex items-center space-x-2" x-show="currentNote">
diff --git a/locales/de-DE.json b/locales/de-DE.json
index 746b4c9..20a9eaa 100644
--- a/locales/de-DE.json
+++ b/locales/de-DE.json
@@ -251,6 +251,11 @@
 
   "support": {
     "enjoying_demo": "Unterstütze dieses Projekt"
+  },
+
+  "demo": {
+    "title": "DEMO-MODUS",
+    "warning": "Inhalte werden täglich zurückgesetzt. Änderungen können von anderen Benutzern überschrieben werden."
   }
 }
 
diff --git a/locales/en-GB.json b/locales/en-GB.json
index b5bc797..1b4bea5 100644
--- a/locales/en-GB.json
+++ b/locales/en-GB.json
@@ -251,6 +251,11 @@
 
   "support": {
     "enjoying_demo": "Support this project"
+  },
+
+  "demo": {
+    "title": "DEMO MODE",
+    "warning": "Contents reset daily. Changes may be overwritten by other users."
   }
 }
 
diff --git a/locales/en-US.json b/locales/en-US.json
index 9c35a5c..67637f8 100644
--- a/locales/en-US.json
+++ b/locales/en-US.json
@@ -251,6 +251,11 @@
 
   "support": {
     "enjoying_demo": "Support this project"
+  },
+
+  "demo": {
+    "title": "DEMO MODE",
+    "warning": "Contents reset daily. Changes may be overwritten by other users."
   }
 }
 
diff --git a/locales/es-ES.json b/locales/es-ES.json
index bb29a64..703a94c 100644
--- a/locales/es-ES.json
+++ b/locales/es-ES.json
@@ -251,6 +251,11 @@
 
   "support": {
     "enjoying_demo": "Apoya este proyecto"
+  },
+
+  "demo": {
+    "title": "MODO DEMO",
+    "warning": "El contenido se reinicia diariamente. Los cambios pueden ser sobrescritos por otros usuarios."
   }
 }
 
diff --git a/locales/fr-FR.json b/locales/fr-FR.json
index 26c35e9..63c1842 100644
--- a/locales/fr-FR.json
+++ b/locales/fr-FR.json
@@ -251,6 +251,11 @@
 
   "support": {
     "enjoying_demo": "Soutenez ce projet"
+  },
+
+  "demo": {
+    "title": "MODE DÉMO",
+    "warning": "Le contenu est réinitialisé quotidiennement. Les modifications peuvent être écrasées par d'autres utilisateurs."
   }
 }
 
diff --git a/locales/it-IT.json b/locales/it-IT.json
index 12c64e6..fce134b 100644
--- a/locales/it-IT.json
+++ b/locales/it-IT.json
@@ -251,5 +251,10 @@
 
   "support": {
     "enjoying_demo": "Supporta questo progetto"
+  },
+
+  "demo": {
+    "title": "MODALITÀ DEMO",
+    "warning": "I contenuti vengono ripristinati ogni giorno. Le modifiche potrebbero essere sovrascritte da altri utenti."
   }
 }
diff --git a/locales/ja-JP.json b/locales/ja-JP.json
index 35ccc95..962e75d 100644
--- a/locales/ja-JP.json
+++ b/locales/ja-JP.json
@@ -251,5 +251,10 @@
 
   "support": {
     "enjoying_demo": "このプロジェクトを支援"
+  },
+
+  "demo": {
+    "title": "デモモード",
+    "warning": "コンテンツは毎日リセットされます。変更は他のユーザーによって上書きされる場合があります。"
   }
 }
diff --git a/locales/ru-RU.json b/locales/ru-RU.json
index 8acf332..533be46 100644
--- a/locales/ru-RU.json
+++ b/locales/ru-RU.json
@@ -251,5 +251,10 @@
 
   "support": {
     "enjoying_demo": "Поддержать проект"
+  },
+
+  "demo": {
+    "title": "ДЕМО-РЕЖИМ",
+    "warning": "Содержимое сбрасывается ежедневно. Изменения могут быть перезаписаны другими пользователями."
   }
 }
diff --git a/locales/sl-SI.json b/locales/sl-SI.json
index 2e115f8..2e5f017 100644
--- a/locales/sl-SI.json
+++ b/locales/sl-SI.json
@@ -251,5 +251,10 @@
 
   "support": {
     "enjoying_demo": "Podprite ta projekt"
+  },
+
+  "demo": {
+    "title": "DEMO NAČIN",
+    "warning": "Vsebina se dnevno ponastavi. Spremembe lahko prepišejo drugi uporabniki."
   }
 }
\ No newline at end of file
diff --git a/locales/zh-CN.json b/locales/zh-CN.json
index d298624..f5ea2bc 100644
--- a/locales/zh-CN.json
+++ b/locales/zh-CN.json
@@ -251,6 +251,11 @@
 
   "support": {
     "enjoying_demo": "支持此项目"
+  },
+
+  "demo": {
+    "title": "演示模式",
+    "warning": "内容每日重置。您的更改可能被其他用户覆盖。"
   }
 }