diff --git a/studio-v2/app/impressum/page.tsx b/studio-v2/app/impressum/page.tsx
index 2f1e856..cca40ee 100644
--- a/studio-v2/app/impressum/page.tsx
+++ b/studio-v2/app/impressum/page.tsx
@@ -1,109 +1,126 @@
 'use client'
 
-import Link from 'next/link'
-import { useLanguage } from '@/lib/LanguageContext'
+import React from 'react'
 import { useTheme } from '@/lib/ThemeContext'
-import { Footer } from '@/components/Footer'
+import { Sidebar } from '@/components/Sidebar'
 
 export default function ImpressumPage() {
-  const { t } = useLanguage()
   const { isDark } = useTheme()
 
+  const gc = isDark
+    ? 'bg-white/10 backdrop-blur-xl border border-white/10'
+    : 'bg-white/80 backdrop-blur-xl border border-black/5'
+  const h2c = isDark ? 'text-white' : 'text-slate-900'
+  const tc = isDark ? 'text-white/70' : 'text-slate-600'
+  const sc = isDark ? 'text-white/90' : 'text-slate-800'
+
   return (
-    <div className={`min-h-screen flex flex-col ${
-      isDark
-        ? 'bg-gradient-to-br from-indigo-900 via-purple-900 to-pink-800'
-        : 'bg-gradient-to-br from-slate-100 via-blue-50 to-indigo-100'
-    }`}>
-      <div className="flex-1 p-8">
-        <div className="max-w-4xl mx-auto">
-          {/* Back Link */}
-          <Link
-            href="/"
-            className={`inline-flex items-center gap-2 mb-8 transition-colors ${
-              isDark ? 'text-white/60 hover:text-white' : 'text-slate-600 hover:text-slate-900'
-            }`}
-          >
-            <svg className="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-              <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M15 19l-7-7 7-7" />
-            </svg>
-            {t('back_to_selection')}
-          </Link>
+    <div className={`min-h-screen flex ${isDark ? 'bg-gradient-to-br from-indigo-900 via-purple-900 to-pink-800' : 'bg-gradient-to-br from-slate-100 via-blue-50 to-cyan-100'}`}>
+      <div className="relative z-10 p-4 flex-shrink-0"><Sidebar /></div>
+      <div className="flex-1 overflow-y-auto scrollbar-hide" style={{ scrollbarWidth: 'none' }}>
+        <div className="max-w-3xl mx-auto px-6 py-8 space-y-6">
 
-          {/* Content Card */}
-          <div className={`backdrop-blur-xl border rounded-3xl p-8 ${
-            isDark
-              ? 'bg-white/10 border-white/20'
-              : 'bg-white/70 border-black/10 shadow-lg'
-          }`}>
-            <h1 className={`text-3xl font-bold mb-8 ${isDark ? 'text-white' : 'text-slate-900'}`}>
-              {t('imprint')}
-            </h1>
+          <h1 className={`text-2xl font-bold ${h2c}`}>Impressum</h1>
 
-            <div className={`space-y-6 ${isDark ? 'text-white/80' : 'text-slate-700'}`}>
-              <section>
-                <h2 className={`text-xl font-semibold mb-3 ${isDark ? 'text-white' : 'text-slate-900'}`}>
-                  Angaben gemäß § 5 TMG
-                </h2>
-                <p>
-                  BreakPilot GmbH<br />
-                  Musterstraße 123<br />
-                  12345 Musterstadt<br />
-                  Deutschland
+          <section className={`${gc} rounded-2xl p-6`}>
+            <h2 className={`text-lg font-semibold mb-3 ${h2c}`}>Angaben gemaess § 5 TMG</h2>
+            <div className={`space-y-1 ${tc}`}>
+              <p>[Firmenname GmbH]</p>
+              <p>[Strasse und Hausnummer]</p>
+              <p>[PLZ Ort]</p>
+              <p className="mt-3"><strong>Vertreten durch:</strong> [Geschaeftsfuehrer]</p>
+              <p><strong>Registergericht:</strong> [Amtsgericht], HRB [Nummer]</p>
+              <p><strong>USt-IdNr.:</strong> DE [Nummer]</p>
+            </div>
+          </section>
+
+          <section className={`${gc} rounded-2xl p-6`}>
+            <h2 className={`text-lg font-semibold mb-3 ${h2c}`}>Kontakt</h2>
+            <div className={`space-y-1 ${tc}`}>
+              <p>E-Mail: [E-Mail-Adresse]</p>
+              <p>Telefon: [Telefonnummer]</p>
+            </div>
+          </section>
+
+          <section className={`${gc} rounded-2xl p-6`}>
+            <h2 className={`text-lg font-semibold mb-3 ${h2c}`}>Quellen, Lizenzen und Namensnennung</h2>
+            <div className={`space-y-4 ${tc}`}>
+
+              <div>
+                <h3 className={`font-medium mb-1 ${sc}`}>Woerterbuch- und Uebersetzungsdaten</h3>
+                <p className="text-sm">
+                  Basierend auf Daten aus{' '}
+                  <a href="https://en.wiktionary.org" className="text-blue-400 hover:underline" target="_blank" rel="noopener noreferrer">Wiktionary</a>,
+                  extrahiert ueber{' '}
+                  <a href="https://kaikki.org" className="text-blue-400 hover:underline" target="_blank" rel="noopener noreferrer">Kaikki.org</a>.
                 </p>
-              </section>
-
-              <section>
-                <h2 className={`text-xl font-semibold mb-3 ${isDark ? 'text-white' : 'text-slate-900'}`}>
-                  Kontakt
-                </h2>
-                <p>
-                  Telefon: +49 (0) 123 456789<br />
-                  E-Mail: info@breakpilot.de
+                <p className="text-xs mt-1 opacity-70">
+                  Referenz: Tatu Ylonen: &quot;Wiktextract: Wiktionary as Machine-Readable Structured Data&quot;, LREC 2022, pp. 1317-1325.
                 </p>
-              </section>
-
-              <section>
-                <h2 className={`text-xl font-semibold mb-3 ${isDark ? 'text-white' : 'text-slate-900'}`}>
-                  Vertretungsberechtigte Geschäftsführer
-                </h2>
-                <p>Max Mustermann</p>
-              </section>
-
-              <section>
-                <h2 className={`text-xl font-semibold mb-3 ${isDark ? 'text-white' : 'text-slate-900'}`}>
-                  Registereintrag
-                </h2>
-                <p>
-                  Eintragung im Handelsregister<br />
-                  Registergericht: Amtsgericht Musterstadt<br />
-                  Registernummer: HRB 12345
-                </p>
-              </section>
-
-              <section>
-                <h2 className={`text-xl font-semibold mb-3 ${isDark ? 'text-white' : 'text-slate-900'}`}>
-                  Umsatzsteuer-ID
-                </h2>
-                <p>
-                  Umsatzsteuer-Identifikationsnummer gemäß § 27 a Umsatzsteuergesetz:<br />
-                  DE 123456789
-                </p>
-              </section>
-
-              <div className={`mt-8 p-4 rounded-2xl ${
-                isDark ? 'bg-yellow-500/20 border border-yellow-500/30' : 'bg-yellow-50 border border-yellow-200'
-              }`}>
-                <p className={`text-sm ${isDark ? 'text-yellow-200' : 'text-yellow-800'}`}>
-                  Hinweis: Dies ist ein Platzhalter. Bitte ersetzen Sie diese Angaben durch Ihre tatsächlichen Unternehmensdaten.
+                <p className="text-xs mt-1 opacity-70">
+                  Lizenz: CC BY-SA 3.0 und GFDL. Aenderungen: Strukturierte Extraktion, Filterung und Aufbereitung fuer Lernzwecke.
                 </p>
               </div>
+
+              <div>
+                <h3 className={`font-medium mb-1 ${sc}`}>IPA-Lautschrift</h3>
+                <p className="text-sm">
+                  <a href="https://github.com/open-dict-data/ipa-dict" className="text-blue-400 hover:underline" target="_blank" rel="noopener noreferrer">ipa-dict</a> — Phonemische Transkriptionen fuer 31 Sprachen.
+                </p>
+                <p className="text-xs mt-1 opacity-70">Lizenz: MIT License.</p>
+              </div>
+
+              <div>
+                <h3 className={`font-medium mb-1 ${sc}`}>Vokabel-Bilder</h3>
+                <p className="text-sm">
+                  <a href="https://commons.wikimedia.org" className="text-blue-400 hover:underline" target="_blank" rel="noopener noreferrer">Wikimedia Commons</a> — Freie Medien.
+                </p>
+                <p className="text-xs mt-1 opacity-70">Lizenz: CC BY-SA. Einzelbildnachweise auf Anfrage.</p>
+              </div>
+
+              <div>
+                <h3 className={`font-medium mb-1 ${sc}`}>Sprachsynthese (Text-to-Speech)</h3>
+                <p className="text-sm">
+                  <a href="https://github.com/rhasspy/piper" className="text-blue-400 hover:underline" target="_blank" rel="noopener noreferrer">Piper TTS</a> (Rhasspy Project) — Deutsch: Thorsten, Englisch: Lessac.
+                </p>
+                <p className="text-xs mt-1 opacity-70">Lizenz: MIT License.</p>
+                <p className="text-sm mt-1">Weitere Sprachen (TR, AR, UK, RU, PL, FR, ES): Microsoft Edge TTS.</p>
+              </div>
+
+              <div>
+                <h3 className={`font-medium mb-1 ${sc}`}>Rechtschreibpruefung</h3>
+                <p className="text-sm">
+                  <a href="https://github.com/barrust/pyspellchecker" className="text-blue-400 hover:underline" target="_blank" rel="noopener noreferrer">pyspellchecker</a> — Verfuegbar fuer: EN, DE, FR, ES, PT, IT, NL, RU, AR.
+                </p>
+                <p className="text-xs mt-1 opacity-70">Lizenz: MIT License.</p>
+              </div>
+
             </div>
-          </div>
+          </section>
+
+          <section className={`${gc} rounded-2xl p-6`}>
+            <h2 className={`text-lg font-semibold mb-3 ${h2c}`}>Haftungsausschluss</h2>
+            <div className={`space-y-2 text-sm ${tc}`}>
+              <p><strong>Haftung fuer Inhalte:</strong> [Standardtext einfuegen]</p>
+              <p><strong>Haftung fuer Links:</strong> [Standardtext einfuegen]</p>
+              <p><strong>Urheberrecht:</strong> [Standardtext einfuegen]</p>
+            </div>
+          </section>
+
+          <section className={`${gc} rounded-2xl p-6`}>
+            <h2 className={`text-lg font-semibold mb-3 ${h2c}`}>Streitschlichtung</h2>
+            <p className={`text-sm ${tc}`}>[Hinweis zur OS-Plattform und Verbraucherstreitbeilegung]</p>
+          </section>
+
+          <section className={`${gc} rounded-2xl p-6`}>
+            <h2 className={`text-lg font-semibold mb-3 ${h2c}`}>Datenschutzbeauftragter</h2>
+            <div className={`space-y-1 ${tc}`}>
+              <p>[Name, Adresse, E-Mail]</p>
+            </div>
+          </section>
+
         </div>
       </div>
-
-      <Footer />
     </div>
   )
 }
diff --git a/studio-v2/components/learn/LanguageSwitcher.tsx b/studio-v2/components/learn/LanguageSwitcher.tsx
index 2101952..4a3f6db 100644
--- a/studio-v2/components/learn/LanguageSwitcher.tsx
+++ b/studio-v2/components/learn/LanguageSwitcher.tsx
@@ -10,13 +10,35 @@ interface LanguageSwitcherProps {
 }
 
 const LANGS = [
-  { code: 'de', label: 'DE' },
-  { code: 'en', label: 'EN' },
-  { code: 'tr', label: 'TR' },
-  { code: 'ar', label: 'AR' },
-  { code: 'uk', label: 'UK' },
-  { code: 'ru', label: 'RU' },
-  { code: 'pl', label: 'PL' },
+  // Main languages
+  { code: 'de', label: 'DE', name: 'Deutsch' },
+  { code: 'en', label: 'EN', name: 'English' },
+  // Migration languages
+  { code: 'tr', label: 'TR', name: 'Turkce' },
+  { code: 'ar', label: 'AR', name: 'العربية' },
+  { code: 'uk', label: 'UK', name: 'Українська' },
+  { code: 'ru', label: 'RU', name: 'Русский' },
+  { code: 'pl', label: 'PL', name: 'Polski' },
+  // European languages
+  { code: 'fr', label: 'FR', name: 'Francais' },
+  { code: 'es', label: 'ES', name: 'Espanol' },
+  { code: 'it', label: 'IT', name: 'Italiano' },
+  { code: 'pt', label: 'PT', name: 'Portugues' },
+  { code: 'nl', label: 'NL', name: 'Nederlands' },
+  { code: 'ro', label: 'RO', name: 'Romana' },
+  { code: 'el', label: 'EL', name: 'Ελληνικά' },
+  { code: 'bg', label: 'BG', name: 'Български' },
+  { code: 'hr', label: 'HR', name: 'Hrvatski' },
+  { code: 'cs', label: 'CS', name: 'Cestina' },
+  { code: 'hu', label: 'HU', name: 'Magyar' },
+  { code: 'sv', label: 'SV', name: 'Svenska' },
+  { code: 'da', label: 'DA', name: 'Dansk' },
+  { code: 'fi', label: 'FI', name: 'Suomi' },
+  { code: 'sk', label: 'SK', name: 'Slovencina' },
+  { code: 'sl', label: 'SL', name: 'Slovenscina' },
+  { code: 'lt', label: 'LT', name: 'Lietuviu' },
+  { code: 'lv', label: 'LV', name: 'Latviesu' },
+  { code: 'et', label: 'ET', name: 'Eesti' },
 ]
 
 /**
@@ -33,7 +55,7 @@ export function LanguageSwitcher({ currentLang, onLangChange, isDark, compact =
           isDark ? 'bg-white/10 text-white/70' : 'bg-slate-100 text-slate-600'
         }`}
       >
-        {LANGS.map(l => <option key={l.code} value={l.code}>{l.label}</option>)}
+        {LANGS.map(l => <option key={l.code} value={l.code}>{l.label} — {l.name}</option>)}
       </select>
     )
   }