diff --git a/app/components/CookieConsentBanner.vue b/app/components/CookieConsentBanner.vue
index ec81468..81f1ba6 100644
--- a/app/components/CookieConsentBanner.vue
+++ b/app/components/CookieConsentBanner.vue
@@ -10,80 +10,53 @@
     >
       <section class="cookie-consent-panel">
         <header class="cookie-consent-header">
-          <h2 id="cookie-consent-title">{{ isGerman ? 'Cookies &amp; Analysen' : 'Cookies &amp; analytics' }}</h2>
+          <h2 id="cookie-consent-title">Cookies &amp; Analytics</h2>
           <p id="cookie-consent-description">
-            <template v-if="isGerman">
-              Wir verwenden notwendige Cookies, damit die Website zuverlässig funktioniert. Darüber hinaus würden wir gern optionale
-              Analyse-Cookies von Hotjar einsetzen, um das Nutzungserlebnis zu verbessern. Sie entscheiden, ob Sie diese zulassen – alle
-              Details finden Sie in unserer
-            </template>
-            <template v-else>
-              We use essential cookies to keep the site reliable. We would also like to use optional Hotjar analytics cookies to improve your
-              experience. You decide whether to allow them—see our
-            </template>
-            <a href="/datenschutz" target="_blank" rel="noopener">{{ isGerman ? 'Datenschutzerklärung' : 'privacy policy' }}</a>.
+            We use essential cookies to keep the site reliable. We would also like to enable optional Hotjar analytics cookies to
+            improve the experience. You decide whether to allow them—full details are available in our
+            <a href="/datenschutz" target="_blank" rel="noopener">privacy policy</a>.
           </p>
         </header>
 
         <div class="cookie-consent-options" role="list">
           <article class="cookie-option is-required" role="listitem">
             <div class="cookie-option-text">
-              <h3>{{ isGerman ? 'Notwendige Cookies' : 'Essential cookies' }}</h3>
-              <p>
-                {{
-                  isGerman
-                    ? 'Speichern Ihre Auswahl und sorgen für sichere Anmeldung sowie eine stabile Grundfunktionalität.'
-                    : 'Store your selection and enable secure sign-in plus a stable core experience.'
-                }}
-              </p>
+              <h3>Necessary cookies</h3>
+              <p>Store your preferences and keep sign-in secure while ensuring the core experience remains stable.</p>
             </div>
-            <span class="cookie-option-badge" aria-hidden="true">{{ isGerman ? 'Immer aktiv' : 'Always on' }}</span>
+            <span class="cookie-option-badge" aria-hidden="true">Always active</span>
           </article>
 
           <article class="cookie-option" role="listitem">
             <div class="cookie-option-text">
-              <h3>{{ isGerman ? 'Analyse (Hotjar)' : 'Analytics (Hotjar)' }}</h3>
-              <p>
-                {{
-                  isGerman
-                    ? 'Hilft uns, Nutzungsverhalten anonym auszuwerten und unsere Inhalte gezielt zu verbessern.'
-                    : 'Helps us analyse anonymised usage to improve content and product decisions.'
-                }}
-              </p>
+              <h3>Analytics (Hotjar)</h3>
+              <p>Helps us analyse anonymised usage patterns and improve our content in a focused way.</p>
             </div>
             <button
-                type="button"
-                class="cookie-toggle"
-                role="switch"
-                :aria-checked="analyticsSelection"
-                @click="toggleAnalytics"
+              type="button"
+              class="cookie-toggle"
+              role="switch"
+              :aria-checked="analyticsSelection"
+              @click="toggleAnalytics"
             >
               <span class="cookie-toggle-track" :class="{ 'is-active': analyticsSelection }">
                 <span class="cookie-toggle-thumb" />
               </span>
               <span class="sr-only">
-                {{
-                  isGerman
-                    ? `Analyse-Cookies ${analyticsSelection ? 'deaktivieren' : 'aktivieren'}`
-                    : `${analyticsSelection ? 'Disable' : 'Enable'} analytics cookies`
-                }}
+                {{ analyticsSelection ? 'Disable analytics cookies' : 'Enable analytics cookies' }}
               </span>
             </button>
           </article>
         </div>
 
         <p class="cookie-consent-note">
-          {{
-            isGerman
-              ? 'Optionales Tracking wird erst nach Ihrer Zustimmung geladen. Sie können Ihre Entscheidung jederzeit über „Cookie-Einstellungen“ unten links widerrufen.'
-              : 'Optional tracking only loads after you consent. You can revisit your choice at any time via “Cookie settings” in the lower left.'
-          }}
+          Optional tracking loads only after you agree. You can change your decision any time via "Cookie settings" in the lower left.
         </p>
 
         <div class="cookie-consent-actions">
-          <button type="button" class="cookie-button ghost" @click="handleRejectAll">{{ isGerman ? 'Nur notwendige' : 'Only necessary' }}</button>
-          <button type="button" class="cookie-button secondary" @click="handleSave">{{ isGerman ? 'Auswahl speichern' : 'Save selection' }}</button>
-          <button type="button" class="cookie-button primary" @click="handleAcceptAll">{{ isGerman ? 'Alle akzeptieren' : 'Accept all' }}</button>
+          <button type="button" class="cookie-button ghost" @click="handleRejectAll">Essential only</button>
+          <button type="button" class="cookie-button secondary" @click="handleSave">Save selection</button>
+          <button type="button" class="cookie-button primary" @click="handleAcceptAll">Accept all</button>
         </div>
       </section>
     </div>
@@ -91,22 +64,19 @@
 
   <transition name="cookie-manage">
     <button v-if="showManageButton" type="button" class="cookie-manage-button" @click="openManager">
-      {{ isGerman ? 'Cookie-Einstellungen' : 'Cookie settings' }}
+      Cookie settings
     </button>
   </transition>
 </template>
 
 <script setup lang="ts">
 import { computed, ref, watch } from 'vue';
-import { useState } from '#imports';
 
 const { hasConsent, analyticsEnabled, acceptAll, rejectAll, savePreferences } = useCookieConsent();
 
 const isDialogVisible = ref(!hasConsent.value);
 const isManuallyOpened = ref(false);
 const analyticsSelection = ref(analyticsEnabled.value);
-const locale = useState<'de' | 'en'>('landing-locale', () => 'de');
-const isGerman = computed(() => locale.value === 'de');
 
 watch(
   () => hasConsent.value,
diff --git a/app/pages/learn.vue b/app/pages/learn.vue
index 494c2a9..af12065 100644
--- a/app/pages/learn.vue
+++ b/app/pages/learn.vue
@@ -10,7 +10,7 @@
           </button>
           <span class="brand">OpenSquawk</span>
           <span class="sep">|</span>
-          <span class="mode">Training</span>
+          <span class="mode">Training Hub</span>
         </div>
 
         <div class="hud-right">
@@ -20,20 +20,8 @@
           <!-- Quick ATC: Voice & Level -->
           <div class="chip inline">
             <v-icon size="16" class="text-accent">mdi-radio-handheld</v-icon>
-            <span class="ml-1">Level {{ cfg.radioLevel }}</span>
-            <input type="range" min="1" max="5" step="1" v-model.number="cfg.radioLevel" aria-label="Radio level"/>
-          </div>
-          <div class="chip inline">
-            <v-icon size="16" class="text-accent">mdi-speedometer</v-icon>
-            <span class="ml-1">Speed {{ cfg.audioSpeed.toFixed(1) }}x</span>
-            <input
-                type="range"
-                min="0.7"
-                max="1.3"
-                step="0.1"
-                v-model.number="cfg.audioSpeed"
-                aria-label="ATC audio speed"
-            />
+            <span class="ml-1">L {{ cfg.radioLevel }}</span>
+            <input type="range" min="1" max="5" step="1" v-model.number="cfg.radioLevel"/>
           </div>
 
           <button class="btn ghost" @click="panel='progress'">
@@ -61,12 +49,12 @@
         <div class="panel hero-panel" :style="worldTiltStyle" @mousemove="tilt">
           <div class="hero-left">
             <div class="eyebrow">ALPHA BUILD · TRAINING</div>
-            <h1 class="h1">ATC Training World</h1>
+            <h1 class="h1">ATC Learning Hub</h1>
             <p class="muted">Guided paths · missions · XP · badges. Stored locally.</p>
             <div class="actions">
               <button class="btn primary" @click="panel='hub'">
                 <v-icon>mdi-play</v-icon>
-                Start Training
+                Start training
               </button>
               <button class="btn ghost" @click="panel='progress'">
                 <v-icon>mdi-progress-check</v-icon>
@@ -110,7 +98,7 @@
     <main v-if="panel==='hub'" class="container" role="main">
       <div class="hub-head">
         <h2 class="h2">Mission Hub</h2>
-        <div class="muted">Start with the ICAO alphabet & numbers, then basics, ground, and beyond.</div>
+        <div class="muted">Start with the ICAO alphabet & numbers, then basics, ground, and more.</div>
       </div>
 
       <div class="tiles">
@@ -179,7 +167,7 @@
               <v-icon size="18">mdi-headset</v-icon>
               {{ l.title }}
             </div>
-            <div class="chip" :class="{ ok: bestScore(current.id,l.id)>=80 }">
+              <div class="chip" :class="{ ok: bestScore(current.id,l.id)>=80 }">
               {{ bestScore(current.id, l.id) ? bestScore(current.id, l.id) + '%' : 'new' }}
             </div>
           </div>
@@ -236,7 +224,7 @@
                   {{ targetPhrase }}
                 </div>
                 <div v-if="audioContentHidden" class="audio-note muted small">
-                  Audio Challenge active – listen first.
+                  Audio challenge active – listen first.
                 </div>
               </div>
               <div class="row wrap">
@@ -257,7 +245,7 @@
                     @click="revealAudioContent"
                 >
                   <v-icon size="16">mdi-eye</v-icon>
-                  Show
+                  Reveal text
                 </button>
                 <button class="btn ghost mini" type="button" @click="rollScenario(true)">
                   <v-icon size="16">mdi-dice-5</v-icon>
@@ -284,7 +272,7 @@
         </div>
 
         <div class="col">
-          <div class="label">Your Readback</div>
+          <div class="label">Your readback</div>
           <div class="panel readback-panel">
             <div class="cloze">
               <template v-for="(segment, idx) in activeLesson.readback" :key="segment.type === 'field' ? `f-${segment.key}` : `t-${idx}`">
@@ -306,7 +294,7 @@
                   <v-icon v-if="fieldPass(segment.key)" size="16" class="blank-status ok">mdi-check</v-icon>
                   <v-icon v-else-if="fieldHasAnswer(segment.key)" size="16" class="blank-status warn">mdi-alert</v-icon>
                   <small v-if="result" class="blank-feedback">
-                    Expected: {{ fieldExpectedValue(segment.key) }}
+                    Soll: {{ fieldExpectedValue(segment.key) }}
                   </small>
                 </label>
               </template>
@@ -323,16 +311,7 @@
             </button>
             <button class="btn ghost" type="button" @click="fillSolution">
               <v-icon size="18">mdi-auto-fix</v-icon>
-              Autofill
-            </button>
-            <button
-                v-if="result"
-                class="btn soft"
-                type="button"
-                @click="goToNextLesson"
-            >
-              <v-icon size="18">mdi-arrow-right-bold</v-icon>
-              {{ nextLesson ? 'Next Lesson' : 'Back to Hub' }}
+              Auto-fill
             </button>
           </div>
           <div v-if="result" class="score">
@@ -354,7 +333,7 @@
 
     <!-- PROGRESS -->
     <section v-if="panel==='progress'" class="container" aria-label="Progress">
-      <h2 class="h2">Overall Progress</h2>
+      <h2 class="h2">Overall progress</h2>
       <div class="progress-grid">
         <div v-for="m in modules" :key="m.id" class="panel">
           <div class="row between">
@@ -374,21 +353,21 @@
     <!-- SETTINGS DIALOG -->
     <v-dialog v-model="showSettings" max-width="720">
       <div class="panel dialog">
-        <h3 class="h3">ATC Settings</h3>
+        <h3 class="h3">ATC settings</h3>
 
         <div class="settings">
           <div class="set-row">
             <div class="set-info">
-              <span>Browser-TTS (Web Speech)</span>
-              <small class="muted">Works offline, starts faster, and saves our API calls.</small>
+              <span>Browser TTS (Web Speech)</span>
+              <small class="muted">Runs offline, starts faster, and saves our API calls.</small>
             </div>
             <v-switch v-model="cfg.tts" color="cyan" hide-details inset/>
           </div>
 
           <div class="set-row">
             <div class="set-info">
-              <span>Audio Challenge</span>
-              <small class="muted">Hides target text & details until you reveal them manually.</small>
+              <span>Audio challenge</span>
+              <small class="muted">Hides target text & info until you reveal it manually.</small>
             </div>
             <v-switch v-model="cfg.audioChallenge" color="cyan" hide-details inset/>
           </div>
@@ -398,21 +377,6 @@
             <v-slider v-model="cfg.radioLevel" :min="1" :max="5" :step="1" color="cyan" thumb-label/>
           </div>
 
-          <div class="set-row">
-            <div class="set-info">
-              <span>ATC audio speed</span>
-              <small class="muted">Fine-tune the playback speed for ATC voice lines.</small>
-            </div>
-            <v-slider
-                v-model="cfg.audioSpeed"
-                :min="0.7"
-                :max="1.3"
-                :step="0.1"
-                color="cyan"
-                thumb-label
-            />
-          </div>
-
           <div class="set-row">
             <span>Voice</span>
             <v-text-field v-model="cfg.voice" placeholder="alloy" hide-details density="compact" variant="outlined"/>
@@ -704,7 +668,7 @@ const airportsData: AirportData[] = [
   },
   {
     icao: 'EDDM',
-    name: 'München',
+    name: 'Munich',
     city: 'Munich',
     runways: ['26R', '26L', '08R', '08L'],
     stands: ['211', '214', '302', 'N16', 'H45'],
@@ -1054,8 +1018,8 @@ const modules = ref<ModuleDef[]>([
         desc: 'Spell letters and digits clearly',
         keywords: ['Alphabet', 'Numbers', 'Normalize'],
         hints: [
-          'Spell each letter with the ICAO name (e.g. Delta, Lima, Hotel).',
-          'Digits on the radio: tree, fower, fife, niner.'
+          'Spell each letter with its ICAO name (e.g. Delta, Lima, Hotel).',
+          'Use ATC numbers: tree, fower, fife, niner.'
         ],
         fields: [
           {
@@ -1068,7 +1032,7 @@ const modules = ref<ModuleDef[]>([
           },
           {
             key: 'digits',
-            label: 'Digits',
+            label: 'Numbers',
             expected: scenario => scenario.flightNumberWords,
             placeholder: 'one two three',
             width: 'lg',
@@ -1076,7 +1040,7 @@ const modules = ref<ModuleDef[]>([
           }
         ],
         readback: [
-          { type: 'text', text: 'Callsign: ' },
+          { type: 'text', text: 'Call sign: ' },
           { type: 'field', key: 'letters', width: 'lg' },
           { type: 'text', text: ' · ' },
           { type: 'field', key: 'digits', width: 'md' }
@@ -1084,20 +1048,20 @@ const modules = ref<ModuleDef[]>([
         defaultFrequency: 'DEL',
         phrase: scenario => `${scenario.callsignNato} ${scenario.flightNumberWords}`,
         info: scenario => [
-          `Registration: ${scenario.callsign}`,
-          `Airline call: ${scenario.radioCall}`,
-          `ICAO: ${scenario.callsignNato}`,
+          `Callsign: ${scenario.callsign}`,
+          `Radio call: ${scenario.radioCall}`,
+          `ICAO spelling: ${scenario.callsignNato}`,
           `Flight number spoken: ${scenario.flightNumberWords}`
         ],
         generate: createBaseScenario
       },
       {
         id: 'atis',
-        title: 'Understand ATIS',
-        desc: 'Extract the identifier and core data from the ATIS',
+        title: 'Understand the ATIS',
+        desc: 'Extract the identifier and key data from the ATIS',
         keywords: ['ATIS', 'Weather'],
         hints: [
-          'Remember the ATIS designator as a single letter.',
+          'Remember the ATIS identifier as a single letter.',
           'Order: runway – wind – visibility – temperature – dew point – QNH.'
         ],
         fields: [
@@ -1180,19 +1144,19 @@ const modules = ref<ModuleDef[]>([
         defaultFrequency: 'ATIS',
         phrase: scenario => scenario.atisText,
         info: () => [
-          'Take note of the designator, runway, wind, visibility, temperature, dew point, and QNH.',
-          'Visibility: four digits or 9999 for ≥10 km · QNH as a four-digit number.'
+          'Note the identifier, runway, wind, visibility, temperature, dew point, and QNH.',
+          'Visibility: four digits or 9999 for ≥10 km; QNH as a four-digit value.'
         ],
         generate: createBaseScenario
       },
       {
         id: 'metar',
-        title: 'Decode METAR',
-        desc: 'Extract raw METAR values.',
+        title: 'Decode the METAR',
+        desc: 'Extract the raw METAR values',
         keywords: ['METAR', 'Weather'],
         hints: [
-          'Read METARs in blocks: wind – visibility – clouds – temperature – QNH.',
-          'The temperature block looks like 18/10, negative values start with M.'
+          'Read the METAR in blocks: wind – visibility – clouds – temperature – QNH.',
+          'The temperature block looks like 18/10; negative values start with M.'
         ],
         fields: [
           {
@@ -1256,8 +1220,8 @@ const modules = ref<ModuleDef[]>([
         desc: 'Report readability',
         keywords: ['Ground', 'Comms'],
         hints: [
-          'Reply with "Readability" plus the number.',
-          'Always end the check with your callsign.'
+          'Reply with "Readability" followed by the number.',
+          'Always finish the check with your call sign.'
         ],
         fields: [
           {
@@ -1291,7 +1255,7 @@ const modules = ref<ModuleDef[]>([
         phrase: scenario => `${scenario.airport.name} Ground, ${scenario.radioCall}, radio check on ${scenario.groundFreq}.`,
         info: scenario => [
           `Frequency: ${scenario.groundFreq} (${scenario.frequencyWords.GND})`,
-          `Expected answer: readability ${scenario.readability} (${scenario.readabilityWord})`
+          `Expected response: Readability ${scenario.readability} (${scenario.readabilityWord})`
         ],
         generate: createBaseScenario
       }
@@ -1300,16 +1264,16 @@ const modules = ref<ModuleDef[]>([
   {
     id: 'arc',
     title: 'ARC Decision Tree',
-    subtitle: 'From the clearance call to departure',
+    subtitle: 'From clearance call to departure',
     art: gradientArt(['#f97316', '#fb923c', '#0f172a']),
     lessons: [
       {
         id: 'clearance-contact',
         title: 'Delivery: Initial contact',
-        desc: 'Call clearance delivery',
+        desc: 'Contact clearance delivery',
         keywords: ['Delivery', 'Clearance'],
         hints: [
-          'Order: unit, callsign, ATIS, destination, stand, request.',
+          'Order: unit, call sign, ATIS, destination, stand, request.',
           'Say the ATIS as a single letter.'
         ],
         fields: [
@@ -1334,7 +1298,7 @@ const modules = ref<ModuleDef[]>([
           },
           {
             key: 'cd-stand',
-            label: 'Stand',
+            label: 'Stand/Gate',
             expected: scenario => scenario.stand,
             width: 'sm'
           }
@@ -1354,20 +1318,20 @@ const modules = ref<ModuleDef[]>([
         defaultFrequency: 'DEL',
         phrase: scenario => `${scenario.airport.city} Delivery, ${scenario.radioCall}, information ${scenario.atisCode}, IFR to ${scenario.destination.city}, stand ${scenario.stand}, request clearance.`,
         info: scenario => [
-          `ATIS ${scenario.atisCode}`,
+          `ATIS: ${scenario.atisCode}`,
           `Destination: ${scenario.destination.city} (${scenario.destination.icao})`,
-          `Stand: ${scenario.stand}`
+          `Stand/Gate: ${scenario.stand}`
         ],
         generate: createBaseScenario
       },
       {
         id: 'clearance-readback',
         title: 'Clearance Readback',
-        desc: 'Read back the clearance completely',
+        desc: 'Read back the clearance in full',
         keywords: ['Delivery', 'Readback'],
         hints: [
-          'Remember the sequence: destination – SID – runway – altitude – squawk.',
-          'Spell out the altitude and squawk digits clearly.'
+          'Remember the order: destination – SID – runway – altitude – squawk.',
+          'Speak altitude and squawk digits clearly.'
         ],
         fields: [
           {
@@ -1429,11 +1393,11 @@ const modules = ref<ModuleDef[]>([
       {
         id: 'pushback',
         title: 'Push & Start Readback',
-        desc: 'Confirm the pushback clearance',
+        desc: 'Acknowledge the pushback clearance',
         keywords: ['Ground', 'Pushback'],
         hints: [
-          'Repeat the runway direction and QNH, callsign at the end.',
-          'You may say QNH as a number or as "QNH xxxx".'
+          'Repeat the runway direction and QNH, call sign at the end.',
+          'QNH may be just the number or "QNH xxxx".'
         ],
         fields: [
           {
@@ -1473,7 +1437,7 @@ const modules = ref<ModuleDef[]>([
         defaultFrequency: 'GND',
         phrase: scenario => `${scenario.radioCall}, push and start approved, facing runway ${scenario.runway}. QNH ${scenario.qnh}.`,
         info: scenario => [
-          `Stand: ${scenario.stand}`,
+          `Stand/Gate: ${scenario.stand}`,
           `Ground: ${scenario.groundFreq} (${scenario.frequencyWords.GND})`
         ],
         generate: createBaseScenario
@@ -1481,11 +1445,11 @@ const modules = ref<ModuleDef[]>([
       {
         id: 'taxi',
         title: 'Taxi Readback',
-        desc: 'Read back the taxi clearance with the hold short instruction',
+        desc: 'Read back the taxi clearance with hold short',
         keywords: ['Ground', 'Taxi'],
         hints: [
-          'Repeat the route as given, including the hold short.',
-          'Finish with the callsign again.'
+          'Repeat the route exactly as received, including the hold short.',
+          'Finish with the call sign.'
         ],
         fields: [
           {
@@ -1542,11 +1506,11 @@ const modules = ref<ModuleDef[]>([
       {
         id: 'lineup',
         title: 'Line-up Clearance',
-        desc: 'Confirm line up and wait',
+        desc: 'Acknowledge line up and wait',
         keywords: ['Tower', 'Line Up'],
         hints: [
           'Repeat the runway, then say "line up and wait".',
-          'Place the callsign at the end.'
+          'Place the call sign at the end.'
         ],
         fields: [
           {
@@ -1578,7 +1542,7 @@ const modules = ref<ModuleDef[]>([
         phrase: scenario => `${scenario.radioCall}, line up and wait runway ${scenario.runway}.`,
         info: scenario => [
           `Tower: ${scenario.towerFreq} (${scenario.frequencyWords.TWR})`,
-          `Line up: runway ${scenario.runway}`
+          `Line-up: runway ${scenario.runway}`
         ],
         generate: createBaseScenario
       },
@@ -1588,8 +1552,8 @@ const modules = ref<ModuleDef[]>([
         desc: 'Acknowledge the takeoff clearance',
         keywords: ['Tower', 'Departure'],
         hints: [
-          'Order: runway – cleared for takeoff – callsign.',
-          'Wind call can be omitted if not stated.'
+          'Order: runway – cleared for takeoff – call sign.',
+          'Wind information can be omitted if it was not given.'
         ],
         fields: [
           {
@@ -1631,13 +1595,13 @@ const modules = ref<ModuleDef[]>([
         desc: 'Switch to departure',
         keywords: ['Departure', 'Handoff'],
         hints: [
-          'Repeat the frequency exactly, either as digits or spoken.',
-          'Add the callsign at the end.'
+          'Repeat the frequency exactly, either as digits or spoken form.',
+          'Append the call sign at the end.'
         ],
         fields: [
           {
             key: 'dep-freq',
-            label: 'Frequency',
+            label: 'Frequenz',
             expected: scenario => scenario.departureFreq,
             alternatives: scenario => [
               scenario.departureFreq,
@@ -1675,11 +1639,11 @@ const modules = ref<ModuleDef[]>([
       {
         id: 'departure-checkin',
         title: 'Departure Check-in',
-        desc: 'First call with departure',
+        desc: 'Initial call to departure',
         keywords: ['Departure', 'Check-in'],
         hints: [
-          'Address the unit, then state the callsign.',
-          'Repeat the altitude and SID exactly as given.'
+          'Address the unit first, then state the call sign.',
+          'Repeat the altitude and SID exactly as received.'
         ],
         fields: [
           {
@@ -1730,11 +1694,11 @@ const modules = ref<ModuleDef[]>([
       {
         id: 'climb-instruction',
         title: 'Climb & Direct',
-        desc: 'Read back the climb instruction completely',
+        desc: 'Read back the climb instruction in full',
         keywords: ['Departure', 'Climb'],
         hints: [
-          'Start with "Climb", then the altitude and any direct.',
-          'Repeat the callsign at the end.'
+          'Start with "Climb", then the altitude and any direct clearance.',
+          'Repeat the call sign at the end.'
         ],
         fields: [
           {
@@ -1788,13 +1752,13 @@ const modules = ref<ModuleDef[]>([
         desc: 'Acknowledge the handoff to center',
         keywords: ['Center', 'Handoff'],
         hints: [
-          'Repeat the frequency exactly (with or without the decimal).',
-          'Place the callsign at the end.'
+          'Repeat the frequency exactly (with or without the decimal point).',
+          'Place the call sign at the end.'
         ],
         fields: [
           {
             key: 'ctr-freq',
-            label: 'Frequency',
+            label: 'Frequenz',
             expected: scenario => scenario.centerFreq,
             alternatives: scenario => [
               scenario.centerFreq,
@@ -1970,7 +1934,6 @@ if (isClient) {
     resetAudioReveal()
   })
   watch(() => cfg.value.radioLevel, markConfigDirty)
-  watch(() => cfg.value.audioSpeed, markConfigDirty)
   watch(() => cfg.value.voice, markConfigDirty)
 }
 
@@ -2040,7 +2003,7 @@ function blankStateClass(key: string): string {
 }
 
 function fieldLabel(key: string): string {
-  return fieldMap.value[key]?.label ?? 'Feld'
+  return fieldMap.value[key]?.label ?? 'Field'
 }
 
 function fieldPlaceholder(key: string): string {
@@ -2066,12 +2029,6 @@ function fieldExpectedValue(key: string): string {
 
 const targetPhrase = computed(() => (activeLesson.value && scenario.value ? activeLesson.value.phrase(scenario.value) : ''))
 const lessonInfo = computed(() => (activeLesson.value && scenario.value ? activeLesson.value.info(scenario.value) : []))
-const nextLesson = computed(() => {
-  if (!current.value || !activeLesson.value) return null
-  const lessons = current.value.lessons
-  const index = lessons.findIndex(lesson => lesson.id === activeLesson.value?.id)
-  return index >= 0 && index < lessons.length - 1 ? lessons[index + 1] : null
-})
 
 watch(activeLesson, lesson => {
   if (lesson) {
@@ -2201,18 +2158,6 @@ function selectLesson(lesson: Lesson) {
   activeLesson.value = lesson
 }
 
-function goToNextLesson() {
-  stopAudio()
-  if (nextLesson.value) {
-    activeLesson.value = nextLesson.value
-    return
-  }
-  panel.value = 'hub'
-  activeLesson.value = null
-  current.value = null
-  result.value = null
-}
-
 function bestScore(modId: string, lesId: string) {
   return progress.value[modId]?.[lesId]?.best || 0
 }
@@ -2241,8 +2186,8 @@ function avgScore(modId: string) {
 
 const dailies = ref([
   { id: 'd1', title: '3 readbacks ≥80%', sub: 'Reward: +50 XP', reward: 50 },
-  { id: 'd2', title: 'Start one module', sub: 'Reward: +20 XP', reward: 20 },
-  { id: 'd3', title: 'Play a target phrase', sub: 'Reward: +10 XP', reward: 10 }
+  { id: 'd2', title: 'Start 1 module', sub: 'Reward: +20 XP', reward: 20 },
+  { id: 'd3', title: 'Play the target phrase', sub: 'Reward: +10 XP', reward: 10 }
 ])
 
 function startDaily(daily: { id: string; reward: number; title: string }) {
@@ -2335,8 +2280,7 @@ async function say(text: string) {
   if (!trimmed) return
 
   const rateBase = 0.9 + (cfg.value.radioLevel - 3) * 0.12
-  const rateAdjusted = rateBase * (cfg.value.audioSpeed || 1)
-  const normalizedRate = Math.min(1.6, Math.max(0.6, rateAdjusted))
+  const normalizedRate = Math.min(1.5, Math.max(0.6, rateBase))
 
   const hasBrowserTts = cfg.value.tts && typeof window !== 'undefined' && 'speechSynthesis' in window
 
diff --git a/app/pages/pm.vue b/app/pages/pm.vue
index b4e1f68..7a136cd 100644
--- a/app/pages/pm.vue
+++ b/app/pages/pm.vue
@@ -21,7 +21,7 @@
         <v-card class="bg-white/5 backdrop-blur border border-white/10">
           <v-card-text class="space-y-4">
             <div>
-              <h2 class="text-lg font-semibold">VATSIM integration</h2>
+              <h2 class="text-lg font-semibold">VATSIM Integration</h2>
               <p class="text-sm text-white/70">Enter your CID to load your filtered flight plans.</p>
             </div>
             <v-text-field
@@ -59,8 +59,8 @@
         <v-card class="bg-white/5 backdrop-blur border border-white/10">
           <v-card-text class="space-y-4">
             <div>
-              <h2 class="text-lg font-semibold">Demo mode</h2>
-              <p class="text-sm text-white/70">Start with a sample flight plan to test the workflow.</p>
+              <h2 class="text-lg font-semibold">Demo Mode</h2>
+              <p class="text-sm text-white/70">Start with a sample flight plan for testing.</p>
             </div>
             <v-btn
                 block
@@ -203,7 +203,7 @@
                 @click="backToSetup"
                 prepend-icon="mdi-airplane-off"
             >
-              Choose a different flight
+              Select new flight
             </v-btn>
           </v-card-text>
         </v-card>
@@ -285,7 +285,7 @@
             <div v-if="currentStep.pilot" class="space-y-2 rounded-2xl bg-blue-500/10 border border-blue-500/20 p-3 text-sm">
               <div class="flex items-center gap-2 text-blue-300">
                 <v-icon size="16">mdi-account-pilot</v-icon>
-                <span class="text-xs uppercase font-semibold">Pilot (you)</span>
+                <span class="text-xs uppercase font-semibold">Pilot (You)</span>
               </div>
               <p class="font-mono text-white">{{ normalizeExpectedText(currentStep.pilot) }}</p>
             </div>
@@ -396,7 +396,7 @@
         <v-card class="bg-white/5 border border-white/10">
           <v-card-text class="space-y-3">
             <div class="flex flex-wrap items-center justify-between gap-3">
-              <h3 class="text-lg font-semibold">Frequency directory</h3>
+              <h3 class="text-lg font-semibold">Frequency overview</h3>
               <div class="flex items-center gap-2">
                 <v-progress-circular
                     v-if="airportFrequencyLoading"
@@ -421,7 +421,7 @@
             <v-expansion-panels variant="accordion" class="bg-transparent">
               <v-expansion-panel>
                 <v-expansion-panel-title class="text-sm text-white/70">
-                  Frequencies for {{ flightContext.dep || 'Departure' }}
+                  Frequencies for {{ flightContext.dep || 'departure' }}
                 </v-expansion-panel-title>
                 <v-expansion-panel-text>
                   <div
@@ -527,7 +527,7 @@
                 @click:append-inner="sendPilotText"
             />
             <p class="text-xs text-white/50">
-              For emergencies when PTT fails or for testing.
+              For emergencies when PTT fails or for testing
             </p>
           </v-card-text>
         </v-card>
@@ -564,7 +564,7 @@
                 v-if="simulationRunning && simulationTrace.length === 0"
                 class="text-sm text-white/60"
             >
-              Simulation initializing…
+              Simulation initializing...
             </div>
 
             <div
@@ -609,7 +609,7 @@
                 <span v-if="debugState?.frequencyName" class="ml-1 text-white/40">({{ debugState.frequencyName }})</span>
               </p>
               <p v-if="debugState?.sayPlain" class="text-xs text-white/70">
-                Auto: <span class="font-mono text-white">{{ debugState.sayPlain }}</span>
+                Auto (LLM): <span class="font-mono text-white">{{ debugState.sayPlain }}</span>
               </p>
               <p v-if="debugState?.sayNormalized" class="text-[11px] text-white/40">
                 Radio: {{ debugState.sayNormalized }}
@@ -617,7 +617,7 @@
             </div>
 
             <div>
-              <p class="text-xs uppercase tracking-[0.3em] text-white/40 mb-2">Next decisions</p>
+              <p class="text-xs uppercase tracking-[0.3em] text-white/40 mb-2">Upcoming decisions</p>
               <div v-if="debugNextStates.length" class="space-y-2">
                 <div
                     v-for="state in debugNextStates"
@@ -702,7 +702,7 @@
               </div>
 
               <p v-if="log.length === 0" class="text-xs text-white/50 text-center py-4">
-                No transmissions logged yet.
+                No communications recorded yet.
               </p>
             </div>
           </v-card-text>
@@ -752,7 +752,7 @@
                   <template #prepend>
                     <v-icon size="16">mdi-alert-circle-outline</v-icon>
                   </template>
-                  {{ lastTransmissionFaulty ? 'Review issue' : 'Mark issue' }}
+                  {{ lastTransmissionFaulty ? 'Edit issue' : 'Mark as faulty' }}
                 </v-btn>
                 <v-btn
                     v-if="lastTransmissionFaulty"
@@ -801,12 +801,11 @@
           <v-card class="bg-[#0b101d] border border-white/10 text-white">
             <v-card-title class="flex items-center gap-2 text-base font-semibold">
               <v-icon icon="mdi-alert-circle-outline" color="#f87171" size="20" />
-              Flag transmission as faulty
+              Mark transmission as faulty
             </v-card-title>
             <v-card-text class="space-y-4 text-sm text-white/70">
               <p>
-                Leave an optional short description so the dev team can trace the
-                transmission.
+                Optionally leave a short note so the dev team can follow up on the transmission.
               </p>
               <v-textarea
                   v-model="transmissionIssueNote"
diff --git a/shared/data/learnModules.ts b/shared/data/learnModules.ts
index 42c15f2..1d75745 100644
--- a/shared/data/learnModules.ts
+++ b/shared/data/learnModules.ts
@@ -5,7 +5,7 @@ export type Lesson = { id: string; title: string; desc: string; target: string;
 export type ModuleDef = { id: string; title: string; subtitle: string; art: string; lessons: Lesson[] }
 
 const modules = ref<ModuleDef[]>([
-    // NEW: ICAO Kapitel
+    // New: ICAO chapter
     {
         id: 'icao',
         title: 'ICAO Alphabet',
@@ -15,33 +15,33 @@ const modules = ref<ModuleDef[]>([
             {
                 id: 'alpha',
                 title: 'Alphabet A–M',
-                desc: 'Alpha bis Mike sprechen.',
+                desc: 'Say Alpha through Mike.',
                 target: 'Alpha Bravo Charlie Delta Echo Foxtrot Golf Hotel India Juliett Kilo Lima Mike.',
-                hints: ['konstant sprechen', 'deutlich trennen'],
+                hints: ['Keep a steady pace', 'Separate each word clearly'],
                 keywords: ['Alpha', 'Bravo', 'Charlie', 'Delta', 'Echo', 'Foxtrot', 'Golf', 'Hotel', 'India', 'Juliett', 'Kilo', 'Lima', 'Mike']
             },
             {
                 id: 'alpha2',
                 title: 'Alphabet N–Z',
-                desc: 'November bis Zulu.',
+                desc: 'November through Zulu.',
                 target: 'November Oscar Papa Quebec Romeo Sierra Tango Uniform Victor Whiskey X-ray Yankee Zulu.',
-                hints: ['X-ray mit hyphen', 'Juliett mit zwei t'],
+                hints: ['Spell X-ray with a hyphen', "Juliett has two t's"],
                 keywords: ['November', 'Oscar', 'Papa', 'Quebec', 'Romeo', 'Sierra', 'Tango', 'Uniform', 'Victor', 'Whiskey', 'X-ray', 'Yankee', 'Zulu']
             },
             {
                 id: 'numbers',
-                title: 'Zahlen',
-                desc: 'ICAO-Nummernlesen.',
+                title: 'Numbers',
+                desc: 'Read ICAO numbers.',
                 target: 'Tree Fower Fife Six Seven Eight Niner Zero.',
                 hints: ['Nine → Niner', 'Three → Tree', 'Four → Fower', 'Five → Fife'],
                 keywords: ['Tree', 'Fower', 'Fife', 'Niner']
             },
             {
                 id: 'callsign-icao',
-                title: 'Callsign Buchstabieren',
-                desc: 'Beispiel-Callsign.',
+                title: 'Spell the call sign',
+                desc: 'Sample call sign.',
                 target: 'DLH one two three, Lufthansa one two three.',
-                hints: ['DLH → Lufthansa', 'Nummern ICAO'],
+                hints: ['DLH → Lufthansa', 'Use ICAO numbers'],
                 keywords: ['Lufthansa', 'DLH', 'one', 'two', 'three']
             }
         ]
@@ -49,19 +49,19 @@ const modules = ref<ModuleDef[]>([
     {
         id: 'basics',
         title: 'Basics',
-        subtitle: 'Callsign · Struktur · Zahlen',
+        subtitle: 'Call sign · Structure · Numbers',
         art: 'https://images.unsplash.com/photo-1541392822270-85b2ff6c4577?q=80&w=1600&auto=format&fit=crop',
         lessons: [
             {
                 id: 'checkin',
                 title: 'Check-in',
-                desc: 'Erster Call korrekt.',
+                desc: 'Make the first call correctly.',
                 target: 'Frankfurt Ground, Lufthansa one two three at stand A12, request taxi.',
                 hints: ['Station • Callsign • Position • Intent'],
                 keywords: ['Frankfurt Ground', 'Lufthansa', 'stand', 'request taxi']
             },
             {
-                id: 'readback', title: 'Short Readback', desc: 'Kurz bestätigen.',
+                id: 'readback', title: 'Short Readback', desc: 'Give a short acknowledgement.',
                 target: 'Lufthansa one two three, roger.',
                 hints: ['Callsign + roger/affirm'], keywords: ['roger', 'affirm']
             }
@@ -79,7 +79,7 @@ const modules = ref<ModuleDef[]>([
                 hints: ['Taxi to runway • via • hold short'], keywords: ['taxi to runway', 'via', 'hold short']
             },
             {
-                id: 'handoff', title: 'Handoff', desc: 'Frequenzwechsel.',
+                id: 'handoff', title: 'Handoff', desc: 'Frequency change.',
                 target: 'Contact Tower on one one niner decimal five, Lufthansa one two three.',
                 hints: ['Contact Tower on … • decimal'], keywords: ['Contact Tower', 'decimal']
             }
@@ -92,7 +92,7 @@ const modules = ref<ModuleDef[]>([
         art: 'https://images.unsplash.com/photo-1494412685616-a5d310fbb07d?q=80&w=1600&auto=format&fit=crop',
         lessons: [
             {
-                id: 'lineup', title: 'Line up', desc: 'Aufrollen und warten.',
+                id: 'lineup', title: 'Line up', desc: 'Line up and wait.',
                 target: 'Lufthansa one two three, line up and wait runway two five.',
                 hints: ['line up and wait'], keywords: ['line up and wait']
             }
@@ -105,7 +105,7 @@ const modules = ref<ModuleDef[]>([
         art: 'https://images.unsplash.com/photo-1542089363-07b2d92aacc3?q=80&w=1600&auto=format&fit=crop',
         lessons: [
             {
-                id: 'vacate', title: 'Vacate', desc: 'Verlasse Bahn, melde frei.',
+                id: 'vacate', title: 'Vacate', desc: 'Exit the runway and report clear.',
                 target: 'Lufthansa one two three, vacated runway two five via A six.',
                 hints: ['vacated runway • via taxiway'], keywords: ['vacated', 'runway']
             }
@@ -118,7 +118,7 @@ const modules = ref<ModuleDef[]>([
         art: 'https://images.unsplash.com/photo-1508264769638-658b34d79f6e?q=80&w=1600&auto=format&fit=crop',
         lessons: [
             {
-                id: 'checkin', title: 'IFR Check-in', desc: 'Erster Online-Call.',
+                id: 'checkin', title: 'IFR Check-in', desc: 'First online call.',
                 target: 'Frankfurt Ground, Lufthansa one two three, A320 at stand A12, IFR to Munich, information Bravo, request clearance.',
                 hints: ['IFR/VFR • ATIS Info • Request'], keywords: ['IFR', 'information', 'request clearance']
             }
diff --git a/shared/utils/communicationsEngine.ts b/shared/utils/communicationsEngine.ts
index c1eb26b..2234135 100644
--- a/shared/utils/communicationsEngine.ts
+++ b/shared/utils/communicationsEngine.ts
@@ -1,8 +1,8 @@
-// composables/communicationsEngine.ts
+// communicationsEngine composable
 import { ref, computed, readonly } from 'vue'
 import atcDecisionTree from "../data/atcDecisionTree";
 
-// --- DecisionTree-Types (aus ~/data/atcDecisionTree.json abgeleitet) ---
+// --- DecisionTree types (derived from ~/data/atcDecisionTree.json) ---
 type Role = 'pilot' | 'atc' | 'system'
 type Phase =
     | 'Preflight' | 'Clearance' | 'PushStart' | 'TaxiOut' | 'Departure'
@@ -31,8 +31,8 @@ interface DTState {
     auto?: 'check_readback' | 'monitor' | 'end' | 'pop_stack_or_route_by_intent'
     readback_required?: string[]
     actions?: (DTActionSet | string)[]
-    frequency?: string // Für einfachere Freq-Zugriffe
-    frequencyName?: string // Name der Frequenz (DEL, GND, TWR, etc.)
+    frequency?: string // Shortcut for accessing frequencies
+    frequencyName?: string // Frequency label (DEL, GND, TWR, etc.)
 }
 
 interface DecisionTree {
@@ -47,8 +47,8 @@ interface DecisionTree {
         emergency_active: boolean
         current_unit: string
         stack: string[]
-        off_schema_count: number // Zähler für Off-Schema Antworten
-        radio_checks_done: number // Zähler für Radio Checks
+        off_schema_count: number // Counter for off-schema responses
+        radio_checks_done: number // Counter for radio checks
     }
     policies: {
         timeouts: {
@@ -67,7 +67,7 @@ interface DecisionTree {
     states: Record<string, DTState>
 }
 
-// Flight Phases und Communication Steps für bessere Integration
+// Flight phases and communication steps for better integration
 export const FLIGHT_PHASES = [
     { id: 'clearance', name: 'Clearance Delivery', frequency: '121.900', action: 'Request IFR clearance' },
     { id: 'ground', name: 'Ground Control', frequency: '121.700', action: 'Request pushback and taxi' },
@@ -90,7 +90,7 @@ export const COMMUNICATION_STEPS = [
         atc: '{callsign}, cleared to {dest} via {sid} departure, runway {runway}, climb {initial_altitude_ft} feet, squawk {squawk}.',
         pilotResponse: '{callsign} cleared {dest} via {sid}, runway {runway}, climb {initial_altitude_ft}, squawk {squawk}.'
     }
-    // Weitere Steps können hier definiert werden
+    // Additional steps can be defined here
 ]
 
 type FrequencyVariableKey = 'atis_freq'
@@ -101,7 +101,7 @@ type FrequencyVariableKey = 'atis_freq'
     | 'approach_freq'
     | 'handoff_freq'
 
-// --- ATC Decision Tree laden ---
+// --- Load ATC decision tree ---
 export interface FlightContext {
     callsign: string
     aircraft: string
@@ -140,7 +140,7 @@ export interface EngineLog {
     offSchema?: boolean
 }
 
-// NATO/ICAO Normalizer (gekürzt für bessere Performance)
+// NATO/ICAO normalizer trimmed for better performance
 const NATO_PHONETIC: Record<string, string> = {
     A: 'Alpha', B: 'Bravo', C: 'Charlie', D: 'Delta', E: 'Echo', F: 'Foxtrot',
     G: 'Golf', H: 'Hotel', I: 'India', J: 'Juliett', K: 'Kilo', L: 'Lima',
@@ -212,7 +212,7 @@ export default function useCommunicationsEngine() {
     const currentStateId = ref<string>(tree.value.start_state)
     const communicationLog = ref<EngineLog[]>([])
 
-    // Flight Context für bessere Integration mit pm_alt.vue Stil
+    // Flight context used for pm_alt.vue integration
     const flightContext = ref<FlightContext>({
         callsign: '',
         aircraft: 'A320',
@@ -264,7 +264,7 @@ export default function useCommunicationsEngine() {
         }
     })
 
-    // Current Step für pm_alt.vue Integration
+    // Current step for pm_alt.vue integration
     const currentStep = computed(() => {
         const phase = flightContext.value.phase
         const step = COMMUNICATION_STEPS.find(s => s.phase === phase)
@@ -280,7 +280,7 @@ export default function useCommunicationsEngine() {
     })
 
     function initializeFlight(fpl: any) {
-        // Variablen setzen
+        // Set variables
         variables.value = {
             ...variables.value,
             callsign: fpl.callsign || fpl.callsign,
@@ -313,7 +313,7 @@ export default function useCommunicationsEngine() {
             time_now: new Date().toISOString()
         }
 
-        // Flight Context aktualisieren
+        // Update flight context
         Object.assign(flightContext.value, {
             ...variables.value,
             phase: 'clearance'
@@ -364,11 +364,11 @@ export default function useCommunicationsEngine() {
     }
 
     function applyLLMDecision(decision: any) {
-        // Updates anwenden
+        // Apply updates
         if (decision.updates) Object.assign(variables.value, decision.updates)
         if (decision.flags) Object.assign(flags.value, decision.flags)
 
-        // Off-Schema und Radio Check Tracking
+        // Track off-schema responses and radio checks
         if (decision.off_schema) {
             flags.value.off_schema_count++
             console.log(`[Engine] Off-schema response #${flags.value.off_schema_count}`)
@@ -378,7 +378,7 @@ export default function useCommunicationsEngine() {
             console.log(`[Engine] Radio check #${flags.value.radio_checks_done}`)
         }
 
-        // Controller Response
+        // Controller response
         if (decision.controller_say_tpl) {
             speak('atc', decision.controller_say_tpl, currentStateId.value, {
                 radioCheck: decision.radio_check,
@@ -386,7 +386,7 @@ export default function useCommunicationsEngine() {
             })
         }
 
-        // State Transition (nur wenn nicht Radio Check)
+        // State transition (only when not a radio check)
         if (!decision.radio_check) {
             moveTo(decision.next_state)
         }
@@ -396,7 +396,7 @@ export default function useCommunicationsEngine() {
         // Log pilot input
         speak('pilot', transcript, currentStateId.value)
 
-        // Radio Check Detection (fallback falls LLM es nicht erkennt)
+        // Radio check detection (fallback if the LLM misses it)
         const t = transcript.toLowerCase()
         if (t.includes('radio check') || (t.includes('read') && t.includes('check'))) {
             const callsign = variables.value.callsign || ''
@@ -417,7 +417,7 @@ export default function useCommunicationsEngine() {
             return null
         }
 
-        return null // LLM soll entscheiden
+        return null // Let the LLM decide
     }
 
     function processUserTransmission(transcript: string): string | null {
@@ -437,7 +437,7 @@ export default function useCommunicationsEngine() {
         currentStateId.value = stateId
         const s = currentState.value
 
-        // Actions ausführen
+        // Execute actions
         for (const act of s.actions ?? []) {
             if (typeof act === 'string') continue
             if (act.if && !safeEvalBoolean(act.if)) continue
@@ -457,7 +457,7 @@ export default function useCommunicationsEngine() {
             speak(s.role, s.say_tpl, s.id!)
         }
 
-        // Phase Update für Flight Context
+        // Update flight context phase
         updateFlightPhase(s.phase)
     }
 
@@ -599,7 +599,7 @@ export default function useCommunicationsEngine() {
         communicationLog: readonly(communicationLog),
         clearCommunicationLog: () => { communicationLog.value = [] },
 
-        // pm_alt.vue Integration
+        // pm_alt.vue integration
         flightContext: readonly(flightContext),
         currentStep,