diff --git a/app/assets/css/learn-theme.css b/app/assets/css/learn-theme.css
new file mode 100644
index 0000000..2c910aa
--- /dev/null
+++ b/app/assets/css/learn-theme.css
@@ -0,0 +1,39 @@
+/* Shared Learn surface styling */
+.learn-theme .btn {
+  display: inline-flex;
+  align-items: center;
+  gap: 8px;
+  padding: 10px 14px;
+  border: 1px solid var(--border);
+  background: color-mix(in srgb, var(--text) 6%, transparent);
+  color: var(--text);
+  font-weight: 600;
+  text-decoration: none;
+}
+
+.learn-theme .btn:hover {
+  background: color-mix(in srgb, var(--text) 10%, transparent);
+}
+
+.learn-theme .btn.primary {
+  background: linear-gradient(
+    180deg,
+    color-mix(in srgb, var(--accent) 90%, transparent),
+    color-mix(in srgb, var(--accent) 70%, transparent)
+  );
+  color: #061318;
+  border-color: color-mix(in srgb, var(--accent) 60%, transparent);
+}
+
+.learn-theme .btn.soft {
+  background: color-mix(in srgb, var(--text) 8%, transparent);
+}
+
+.learn-theme .btn.ghost {
+  background: transparent;
+}
+
+.learn-theme .btn.mini {
+  padding: 6px 10px;
+  font-size: 12px;
+}
diff --git a/app/pages/learn-introduction.vue b/app/pages/learn-introduction.vue
new file mode 100644
index 0000000..5c494c2
--- /dev/null
+++ b/app/pages/learn-introduction.vue
@@ -0,0 +1,949 @@
+<template>
+  <div class="learn-theme min-h-screen bg-[#070d1a] text-white">
+    <header class="border-b border-white/5 bg-[#070d1a]/80 backdrop-blur">
+      <div
+        class="mx-auto flex w-full max-w-screen-xl flex-wrap items-center justify-between gap-4 px-4 py-6 sm:px-6 md:px-8"
+      >
+        <div class="flex items-center gap-3">
+          <div class="flex h-12 w-12 items-center justify-center rounded-2xl border border-cyan-400/40 bg-cyan-500/10">
+            <v-icon icon="mdi-radar" size="26" class="text-cyan-300" />
+          </div>
+          <div>
+            <p class="text-lg font-semibold tracking-tight">Learn orientation</p>
+            <p class="text-sm text-white/60">Guided preflight briefing</p>
+          </div>
+        </div>
+        <NuxtLink to="/learn" class="btn primary">
+          Enter Learn hub
+          <v-icon icon="mdi-launch" size="18" class="text-[#061318]" />
+        </NuxtLink>
+      </div>
+    </header>
+
+    <main>
+      <section class="relative border-b border-white/5">
+        <div class="pointer-events-none absolute inset-0 bg-gradient-to-br from-cyan-500/15 via-transparent to-indigo-500/25"></div>
+        <div class="relative z-10 mx-auto w-full max-w-screen-xl px-4 py-16 sm:px-6 md:px-8">
+          <div class="grid gap-12 lg:grid-cols-[minmax(0,1.2fr)_minmax(0,0.8fr)] lg:items-center">
+            <div class="space-y-6">
+              <span
+                class="inline-flex items-center gap-2 rounded-full border border-cyan-300/40 bg-cyan-400/10 px-4 py-1 text-xs font-semibold uppercase tracking-[0.3em] text-cyan-200/80"
+              >Orientation</span>
+              <h1 class="text-3xl font-semibold leading-tight sm:text-4xl md:text-5xl">
+                Get comfortable with Learn before you call live AI ATC
+              </h1>
+              <p class="max-w-2xl text-base text-white/80 sm:text-lg">
+                This is your training playground. Live AI controllers for the simulator are still in closed testing, so we
+                start with Learn to build phraseology, timing and confidence. I will guide you through the flow before you
+                dive into the hub.
+              </p>
+              <div class="rounded-2xl border border-amber-400/40 bg-amber-400/10 p-5 text-amber-100 shadow-lg shadow-amber-500/10" role="status">
+                <div class="flex items-start gap-3">
+                  <div class="mt-0.5 flex h-9 w-9 items-center justify-center rounded-xl border border-amber-200/50 bg-amber-300/20">
+                    <v-icon icon="mdi-alert-decagram-outline" size="22" class="text-amber-200" />
+                  </div>
+                  <div class="space-y-1">
+                    <p class="text-sm font-semibold uppercase tracking-wide text-amber-100/90">Heads-up</p>
+                    <p class="text-sm text-amber-50/90">
+                      Learn mirrors the calls you will make later, but today it runs as a standalone trainer. Treat it like a
+                      warm-up before the live network opens.
+                    </p>
+                  </div>
+                </div>
+              </div>
+              <ul class="grid gap-3 text-sm text-white/70 sm:grid-cols-2 sm:text-base">
+                <li class="flex items-start gap-3">
+                  <v-icon icon="mdi-compass-outline" size="20" class="mt-1 text-cyan-300" />
+                  <span>Follow a short, interactive tour so nothing drops on you all at once.</span>
+                </li>
+                <li class="flex items-start gap-3">
+                  <v-icon icon="mdi-headset" size="20" class="mt-1 text-cyan-300" />
+                  <span>Choose text only or let the instructor speak over a radio-style voice.</span>
+                </li>
+              </ul>
+            </div>
+            <div class="flex flex-col gap-6">
+              <div class="overflow-hidden rounded-3xl border border-white/10 bg-black/40 shadow-xl shadow-cyan-500/10">
+                <img
+                  src="/img/learn/modules/img14.jpeg"
+                  alt="Pilots reviewing the Learn mission board"
+                  class="h-56 w-full object-cover"
+                  loading="lazy"
+                />
+              </div>
+              <div class="rounded-3xl border border-white/10 bg-[#0b1328]/90 p-6 shadow-xl shadow-cyan-500/10">
+                <div class="flex items-center gap-4">
+                  <img
+                    src="/img/logo.jpeg"
+                    alt="Avery, the Learn instructor"
+                    class="h-14 w-14 rounded-2xl border border-cyan-400/40 object-cover"
+                  />
+                  <div>
+                    <p class="text-base font-semibold">Avery</p>
+                    <p class="text-sm text-white/60">Your Learn instructor</p>
+                  </div>
+                </div>
+                <p class="mt-4 text-sm text-white/70">
+                  Hey! I will keep the pace relaxed and fun. Pick how you want to follow along and we will walk through each
+                  stop together.
+                </p>
+                <div class="mt-6 space-y-4">
+                  <div>
+                    <p class="text-xs uppercase tracking-[0.3em] text-cyan-200/70">Delivery</p>
+                    <div class="mt-3 flex flex-wrap gap-2">
+                      <button
+                        type="button"
+                        class="btn soft voice-toggle"
+                        :class="{ active: voiceMode === 'text' }"
+                        @click="setVoiceMode('text')"
+                        :aria-pressed="voiceMode === 'text'"
+                      >
+                        <v-icon icon="mdi-text" size="18" class="text-cyan-200" />
+                        Text only
+                      </button>
+                      <button
+                        type="button"
+                        class="btn soft voice-toggle"
+                        :class="{ active: voiceMode === 'radio' }"
+                        @click="setVoiceMode('radio')"
+                        :aria-pressed="voiceMode === 'radio'"
+                      >
+                        <v-icon icon="mdi-radio-handheld" size="18" class="text-cyan-200" />
+                        Radio voice
+                      </button>
+                    </div>
+                  </div>
+                  <div
+                    v-if="voiceMode === 'radio'"
+                    class="space-y-4 rounded-2xl border border-cyan-400/30 bg-cyan-400/5 p-4"
+                  >
+                    <div>
+                      <label
+                        for="radio-level"
+                        class="flex items-center justify-between text-xs uppercase tracking-[0.2em] text-cyan-100/80"
+                      >
+                        Radio clarity
+                        <span class="text-[11px] text-cyan-100/60">Level {{ radioLevel }}</span>
+                      </label>
+                      <input
+                        id="radio-level"
+                        v-model.number="radioLevel"
+                        type="range"
+                        min="1"
+                        max="5"
+                        step="1"
+                        class="mt-2 h-1 w-full rounded-full accent-cyan-300"
+                      />
+                      <p class="mt-2 text-xs text-cyan-100/70">Lower numbers add static. Higher numbers sound crisp.</p>
+                    </div>
+                    <div class="flex flex-wrap items-center gap-3">
+                      <button
+                        type="button"
+                        class="btn primary"
+                        @click="handleRadioCheck"
+                        :disabled="speechLoading"
+                      >
+                        <v-icon
+                          :icon="speechLoading ? 'mdi-loading' : 'mdi-radio-check'"
+                          size="18"
+                          class="text-[#061318]"
+                          :class="{ 'animate-spin': speechLoading }"
+                        />
+                        {{ speechLoading ? 'Checking…' : hasCompletedRadioCheck ? 'Radio check again' : 'Run radio check' }}
+                      </button>
+                      <p v-if="!hasCompletedRadioCheck" class="text-xs text-cyan-100/70">
+                        Play a quick sample to confirm the instructor audio works.
+                      </p>
+                      <p v-else class="flex items-center gap-1 text-xs text-emerald-200/80">
+                        <v-icon icon="mdi-check-circle" size="16" class="text-emerald-300" />
+                        Loud and clear! Audio is ready.
+                      </p>
+                    </div>
+                  </div>
+                </div>
+                <div class="mt-6 flex flex-wrap items-center gap-3">
+                  <button
+                    type="button"
+                    class="btn primary"
+                    @click="startTour"
+                    :disabled="startDisabled"
+                  >
+                    <v-icon icon="mdi-gesture-tap-button" size="18" class="text-[#061318]" />
+                    Start guided tour
+                  </button>
+                  <NuxtLink to="/learn" class="btn ghost">
+                    Skip to Learn
+                    <v-icon icon="mdi-arrow-right" size="16" />
+                  </NuxtLink>
+                </div>
+                <p v-if="startDisabled && voiceMode === 'radio'" class="mt-2 text-xs text-amber-200/80">
+                  Run the radio check once so I know you can hear me before we roll.
+                </p>
+                <p v-if="speechError" class="mt-2 text-xs text-rose-200/80">
+                  {{ speechError }}
+                </p>
+              </div>
+            </div>
+          </div>
+        </div>
+      </section>
+
+      <section id="orientation" class="border-b border-white/5 bg-[#080f1f]/80 py-16 sm:py-20">
+        <div class="mx-auto flex w-full max-w-screen-xl flex-col gap-10 px-4 sm:px-6 md:px-8 lg:flex-row">
+          <aside class="shrink-0 rounded-3xl border border-white/10 bg-white/5 p-6 shadow-lg shadow-black/20 lg:w-80">
+            <p class="text-xs uppercase tracking-[0.3em] text-cyan-200/70">Itinerary</p>
+            <div class="mt-4">
+              <div class="flex items-center gap-3 text-xs text-white/70">
+                <div class="flex-1 overflow-hidden rounded-full bg-white/10">
+                  <div
+                    class="progress-fill"
+                    :style="{ width: `${stageProgress}%` }"
+                  ></div>
+                </div>
+                <span class="font-semibold text-white/80">{{ stageProgress }}%</span>
+              </div>
+              <p class="mt-2 text-[13px] text-white/60">
+                We will stop at {{ stages.length }} stations. Follow them in order for the smoothest ride.
+              </p>
+            </div>
+            <ol class="mt-6 space-y-2">
+              <li v-for="(stop, index) in stages" :key="stop.id">
+                <button
+                  type="button"
+                  class="group flex w-full items-center gap-3 rounded-2xl border border-white/5 px-4 py-3 text-left transition hover:border-cyan-300/50 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-cyan-200 focus-visible:ring-offset-2 focus-visible:ring-offset-[#080f1f]"
+                  :class="{
+                    'border-cyan-300/60 bg-cyan-400/10 text-white': tourStarted && index === stageIndex,
+                    'cursor-not-allowed opacity-50': index > unlockedStageIndex
+                  }"
+                  @click="goToStage(index)"
+                  :disabled="index > unlockedStageIndex"
+                >
+                  <div
+                    class="flex h-8 w-8 items-center justify-center rounded-full border border-cyan-300/50 bg-cyan-500/10 text-sm font-semibold text-cyan-200"
+                  >
+                    {{ index + 1 }}
+                  </div>
+                  <div class="flex-1">
+                    <p class="text-sm font-semibold text-white">{{ stop.title }}</p>
+                    <p v-if="tourStarted && index === stageIndex" class="text-xs text-white/60">{{ stop.summary }}</p>
+                  </div>
+                  <v-icon v-if="index < stageIndex" icon="mdi-check" size="18" class="text-emerald-300" />
+                </button>
+              </li>
+            </ol>
+            <button
+              v-if="tourStarted"
+              type="button"
+              class="btn ghost mini mt-6"
+              @click="restartTour"
+            >
+              <v-icon icon="mdi-refresh" size="18" class="text-cyan-200" />
+              Restart tour
+            </button>
+          </aside>
+
+          <div class="flex-1">
+            <div
+              v-if="!tourStarted"
+              class="flex h-full flex-col justify-center rounded-3xl border border-dashed border-white/10 bg-[#0a1326]/60 p-8 text-center shadow-inner shadow-black/20"
+            >
+              <p class="text-lg font-semibold">Ready when you are</p>
+              <p class="mt-3 text-sm text-white/70">
+                Start the guided tour above. I will only show one stop at a time so it never feels overwhelming.
+              </p>
+              <div class="mt-6 flex flex-wrap justify-center gap-3">
+                <button
+                  type="button"
+                  class="btn primary"
+                  @click="startTour"
+                  :disabled="startDisabled"
+                >
+                  <v-icon icon="mdi-gesture-tap-button" size="18" class="text-[#061318]" />
+                  Start guided tour
+                </button>
+              </div>
+              <p v-if="startDisabled && voiceMode === 'radio'" class="mt-4 text-xs text-amber-200/80">
+                Run the radio check above to enable the instructor voice.
+              </p>
+              <p v-if="speechError" class="mt-2 text-xs text-rose-200/80">
+                {{ speechError }}
+              </p>
+            </div>
+
+            <Transition name="fade-slide" mode="out-in">
+              <article
+                v-if="tourStarted"
+                :key="activeStage.id"
+                class="relative overflow-hidden rounded-3xl border border-white/10 bg-gradient-to-b from-white/5 via-white/[0.03] to-white/[0.02] shadow-xl shadow-black/30"
+              >
+                <div class="relative h-48 w-full overflow-hidden border-b border-white/5 sm:h-56">
+                  <img :src="activeStage.image" :alt="activeStage.imageAlt" class="h-full w-full object-cover" loading="lazy" />
+                  <div class="absolute inset-0 bg-gradient-to-t from-[#080f1f] via-transparent to-transparent"></div>
+                  <div class="absolute bottom-4 left-4 rounded-full bg-[#080f1f]/80 px-3 py-1 text-xs font-semibold uppercase tracking-[0.3em] text-white/80">
+                    Stop {{ stageIndex + 1 }} of {{ stages.length }}
+                  </div>
+                </div>
+                <div class="space-y-6 px-6 py-8 sm:px-8">
+                  <div class="flex flex-wrap items-start justify-between gap-4">
+                    <div>
+                      <h2 class="text-2xl font-semibold">{{ activeStage.title }}</h2>
+                      <p class="mt-2 max-w-2xl text-sm text-white/70">
+                        {{ activeStage.summary }}
+                      </p>
+                    </div>
+                    <div class="rounded-2xl border border-cyan-300/40 bg-cyan-400/10 px-4 py-2 text-sm font-semibold text-cyan-100/90">
+                      {{ progressLabel }}
+                    </div>
+                  </div>
+
+                  <ul class="space-y-3 text-sm text-white/75">
+                    <li v-for="(point, pointIndex) in activeStage.points" :key="pointIndex" class="flex items-start gap-3">
+                      <v-icon icon="mdi-check-circle-outline" size="18" class="mt-0.5 text-cyan-300" />
+                      <span>{{ point }}</span>
+                    </li>
+                  </ul>
+
+                  <div v-if="activeStage.tip" class="rounded-2xl border border-emerald-300/30 bg-emerald-400/10 p-4 text-sm text-emerald-100/90">
+                    <div class="flex items-start gap-3">
+                      <v-icon icon="mdi-lightbulb-on-outline" size="20" class="mt-0.5 text-emerald-200" />
+                      <div>
+                        <p class="font-semibold text-emerald-50">Instructor tip</p>
+                        <p class="mt-1 text-emerald-100/80">{{ activeStage.tip }}</p>
+                      </div>
+                    </div>
+                  </div>
+
+                  <div class="rounded-2xl border border-white/10 bg-[#0c162c]/80 p-4 sm:p-5">
+                    <div class="flex items-start gap-4">
+                      <img
+                        src="/img/logo.jpeg"
+                        alt="Avery instructor avatar"
+                        class="h-12 w-12 rounded-2xl border border-cyan-400/40 object-cover"
+                      />
+                      <div class="flex-1 space-y-3">
+                        <div class="flex flex-wrap items-center gap-2">
+                          <p class="text-sm font-semibold text-white">Avery on comms</p>
+                          <span
+                            v-if="voiceMode === 'radio' && speechPlaying"
+                            class="inline-flex items-center gap-1 rounded-full bg-emerald-400/15 px-2 py-1 text-[11px] font-semibold uppercase tracking-wide text-emerald-200"
+                          >
+                            <v-icon icon="mdi-volume-high" size="14" class="text-emerald-200" />
+                            Speaking
+                          </span>
+                        </div>
+                        <p class="text-sm text-white/70">
+                          {{ activeStage.voiceLine }}
+                        </p>
+                        <div v-if="voiceMode === 'radio'" class="flex flex-wrap items-center gap-3">
+                          <button
+                            type="button"
+                            class="btn soft mini voice-replay"
+                            @click="replayStageVoice"
+                            :disabled="speechLoading"
+                          >
+                            <v-icon
+                              :icon="speechLoading ? 'mdi-loading' : 'mdi-replay'"
+                              size="18"
+                              class="text-cyan-200"
+                              :class="{ 'animate-spin': speechLoading }"
+                            />
+                            Replay radio voice
+                          </button>
+                          <p v-if="speechError" class="text-xs text-rose-200/80">{{ speechError }}</p>
+                        </div>
+                      </div>
+                    </div>
+                  </div>
+
+                  <div class="border-t border-white/10 pt-6">
+                    <div class="flex flex-wrap items-center gap-3">
+                      <button
+                        v-if="canGoPrevious"
+                        type="button"
+                        class="btn ghost"
+                        @click="goToPrevious"
+                      >
+                        <v-icon icon="mdi-arrow-left" size="18" class="text-cyan-200" />
+                        Previous stop
+                      </button>
+                      <div class="ml-auto flex flex-wrap items-center gap-3">
+                        <button
+                          v-if="voiceMode === 'radio'"
+                          type="button"
+                          class="btn ghost mini play-again"
+                          @click="maybeSpeakForStage"
+                          :disabled="speechLoading"
+                        >
+                          <v-icon icon="mdi-play-circle" size="16" class="text-cyan-200" />
+                          Play again
+                        </button>
+                        <button
+                          v-if="canGoNext"
+                          type="button"
+                          class="btn primary"
+                          @click="goToNext"
+                        >
+                          Next stop
+                          <v-icon icon="mdi-arrow-right" size="18" class="text-[#061318]" />
+                        </button>
+                        <NuxtLink v-else to="/learn" class="btn primary">
+                          Enter Learn hub
+                          <v-icon icon="mdi-launch" size="18" class="text-[#061318]" />
+                        </NuxtLink>
+                      </div>
+                    </div>
+                  </div>
+                </div>
+              </article>
+            </Transition>
+          </div>
+        </div>
+      </section>
+    </main>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { computed, nextTick, onBeforeUnmount, ref, watch } from 'vue'
+import { useHead } from '#imports'
+import { useApi } from '~/composables/useApi'
+import type { PizzicatoLite } from '~~/shared/utils/pizzicatoLite'
+import { loadPizzicatoLite } from '~~/shared/utils/pizzicatoLite'
+import { clampReadability, createNoiseGenerators, getReadabilityProfile } from '~~/shared/utils/radioEffects'
+
+type VoiceMode = 'text' | 'radio'
+
+interface StageStop {
+  id: string
+  title: string
+  summary: string
+  points: string[]
+  tip?: string
+  image: string
+  imageAlt: string
+  voiceLine: string
+}
+
+useHead({ title: 'Learn orientation • OpenSquawk' })
+
+const stages: StageStop[] = [
+  {
+    id: 'hub',
+    title: 'Mission hub',
+    summary: 'Browse modules, see XP progress and decide what to train next.',
+    points: [
+      'Each tile shows remaining lessons, best scores and unlock status.',
+      'Use “Continue” to jump back into the last lesson you touched.'
+    ],
+    tip: 'Hover or tap a tile for a quick brief before opening it.',
+    image: '/img/learn/modules/img7.jpeg',
+    imageAlt: 'Learn mission hub interface with highlighted modules',
+    voiceLine:
+      'First stop is the mission hub. This is our briefing room before any AI frequency opens. Pick the module you want and you are two clicks from a lesson.'
+  },
+  {
+    id: 'planning',
+    title: 'Plan your mission',
+    summary: 'Some lessons need a quick flight setup so the scenario makes sense.',
+    points: [
+      'Roll a random plan for an instant route or import SimBrief if you have one ready.',
+      'Confirm the callsign, runway notes and weather before starting the lesson.'
+    ],
+    tip: 'Full Flight missions always start here, while most drills jump straight into the console.',
+    image: '/img/learn/modules/img9.jpeg',
+    imageAlt: 'Pilots preparing a flight plan on a tablet',
+    voiceLine:
+      'When a mission asks for a plan, choose Random, Manual or SimBrief. Try the random generator at least once—it is the fastest way to get airborne.'
+  },
+  {
+    id: 'console',
+    title: 'Lesson console',
+    summary: 'Play the ATC clip, give your readback and grade it when ready.',
+    points: [
+      'Press Play to hear ATC, type or speak your response and tap Check to score it.',
+      'Reveal hints or slow the audio whenever you need extra help.'
+    ],
+    tip: 'The console saves your best answer so you can see improvement at a glance.',
+    image: '/img/learn/modules/img8.jpeg',
+    imageAlt: 'Lesson console showing ATC playback controls',
+    voiceLine:
+      'Inside the console you control the pace. Listen to the call, craft your readback and check it only when it sounds right to you.'
+  },
+  {
+    id: 'settings',
+    title: 'Practice boosters',
+    summary: 'Tune the challenge level whenever you want a new workout.',
+    points: [
+      'Adjust audio speed and radio clarity to simulate a quiet or busy frequency.',
+      'Enable Audio Challenge to hide on-screen text once you feel confident.'
+    ],
+    tip: 'Drop the radio level for extra static when you want to stress-test your ears.',
+    image: '/img/learn/modules/img10.jpeg',
+    imageAlt: 'Audio settings and challenge toggles inside Learn',
+    voiceLine:
+      'Your settings live here. Slide the radio level for more or less static and flip on Audio Challenge when you want the full listen-and-respond workout.'
+  },
+  {
+    id: 'wrap',
+    title: 'Wrap-up & next steps',
+    summary: 'Review the scorecard and pick your next move back in the hub.',
+    points: [
+      'Every lesson ends with accuracy notes, timing feedback and retry suggestions.',
+      'Use the summary to decide whether to repeat, advance or swap to another module.'
+    ],
+    tip: 'Bookmark /learn so a quick refresher is always a tab away.',
+    image: '/img/learn/modules/img11.jpeg',
+    imageAlt: 'Pilot reviewing a scorecard summary',
+    voiceLine:
+      'That is the full loop. Check the scorecard for anything to repeat, then head back to the hub and pick your next practice hop.'
+  }
+]
+
+const api = useApi()
+
+const voiceMode = ref<VoiceMode>('text')
+const radioLevel = ref(3)
+const hasCompletedRadioCheck = ref(false)
+const tourStarted = ref(false)
+const stageIndex = ref(0)
+const unlockedStageIndex = ref(0)
+
+const speechLoading = ref(false)
+const speechPlaying = ref(false)
+const speechError = ref<string | null>(null)
+const audioElement = ref<HTMLAudioElement | null>(null)
+let speechRequestId = 0
+
+const isClient = typeof window !== 'undefined'
+let speechContext: AudioContext | null = null
+let pizzicatoLiteInstance: PizzicatoLite | null = null
+type RadioSoundInstance = Awaited<ReturnType<PizzicatoLite['createSoundFromBase64']>>
+let activeRadioSound: RadioSoundInstance | null = null
+let activeRadioCleanup: Array<() => void> = []
+
+const activeStage = computed(() => stages[stageIndex.value])
+const canGoPrevious = computed(() => stageIndex.value > 0)
+const canGoNext = computed(() => stageIndex.value < stages.length - 1)
+const stageProgress = computed(() => {
+  if (!tourStarted.value) return 0
+  const raw = ((stageIndex.value + 1) / stages.length) * 100
+  return Math.min(100, Math.max(0, Math.round(raw)))
+})
+const progressLabel = computed(() => {
+  if (!tourStarted.value) return 'Not started yet'
+  return `Leg ${stageIndex.value + 1} · ${stageProgress.value}% ready`
+})
+const startDisabled = computed(() => voiceMode.value === 'radio' && !hasCompletedRadioCheck.value)
+
+async function ensureSpeechAudioContext(): Promise<AudioContext | null> {
+  if (!isClient) return null
+
+  const audioWindow = window as typeof window & { webkitAudioContext?: typeof AudioContext }
+  const AudioContextCtor = audioWindow.AudioContext || audioWindow.webkitAudioContext
+  if (!AudioContextCtor) return null
+
+  if (!speechContext || speechContext.state === 'closed') {
+    speechContext = new AudioContextCtor()
+  }
+
+  if (speechContext.state === 'suspended') {
+    try {
+      await speechContext.resume()
+    } catch (error) {
+      console.warn('Failed to resume speech audio context', error)
+    }
+  }
+
+  return speechContext
+}
+
+async function ensurePizzicato(ctx: AudioContext | null): Promise<PizzicatoLite | null> {
+  if (!ctx) return null
+  if (!pizzicatoLiteInstance) {
+    pizzicatoLiteInstance = await loadPizzicatoLite()
+  }
+  return pizzicatoLiteInstance
+}
+
+function releaseRadio(cleanups: Array<() => void>, sound: RadioSoundInstance | null) {
+  if (activeRadioSound === sound) {
+    activeRadioSound = null
+  }
+  if (activeRadioCleanup === cleanups) {
+    activeRadioCleanup = []
+  }
+  if (cleanups.length) {
+    cleanups.forEach(stop => {
+      try {
+        stop()
+      } catch {
+        // ignore cleanup failures
+      }
+    })
+    cleanups.length = 0
+  }
+  sound?.clearEffects()
+}
+
+async function playWithRadioEffect(base64: string, readability: number, requestId: number): Promise<boolean> {
+  let sound: RadioSoundInstance | null = null
+  const cleanups: Array<() => void> = []
+
+  try {
+    const ctx = await ensureSpeechAudioContext()
+    if (!ctx || speechRequestId !== requestId) return false
+
+    const pizzicato = await ensurePizzicato(ctx)
+    if (!pizzicato || speechRequestId !== requestId) return false
+
+    sound = await pizzicato.createSoundFromBase64(ctx, base64)
+    if (!sound || speechRequestId !== requestId) return false
+
+    const profile = getReadabilityProfile(readability)
+    const { Effects } = pizzicato
+
+    const highpass = new Effects.HighPassFilter(ctx, {
+      frequency: profile.eq.highpass,
+      q: profile.eq.highpassQ
+    })
+    const lowpass = new Effects.LowPassFilter(ctx, {
+      frequency: profile.eq.lowpass,
+      q: profile.eq.lowpassQ
+    })
+
+    sound.addEffect(highpass)
+    sound.addEffect(lowpass)
+
+    if (profile.eq.bandpass) {
+      sound.addEffect(
+        new Effects.BandPassFilter(ctx, {
+          frequency: profile.eq.bandpass.frequency,
+          q: profile.eq.bandpass.q
+        })
+      )
+    }
+
+    if (profile.presence) {
+      sound.addEffect(new Effects.PeakingFilter(ctx, profile.presence))
+    }
+
+    profile.distortions.forEach(amount => {
+      sound?.addEffect(new Effects.Distortion(ctx, { amount }))
+    })
+
+    sound.addEffect(new Effects.Compressor(ctx, profile.compressor))
+
+    if (profile.tremolos) {
+      profile.tremolos.forEach(tremolo => {
+        sound?.addEffect(new Effects.Tremolo(ctx, tremolo))
+      })
+    }
+
+    sound.setVolume(profile.gain)
+
+    const playbackDuration = Math.max(0.1, sound.duration)
+    cleanups.push(...createNoiseGenerators(ctx, playbackDuration, profile, readability))
+
+    if (speechRequestId !== requestId) {
+      releaseRadio(cleanups, sound)
+      return false
+    }
+
+    activeRadioSound = sound
+    activeRadioCleanup = cleanups
+
+    if (speechRequestId !== requestId) {
+      releaseRadio(cleanups, sound)
+      return false
+    }
+
+    const playbackPromise = sound.play()
+    if (speechRequestId === requestId) {
+      speechPlaying.value = true
+    }
+
+    playbackPromise.finally(() => {
+      const shouldUpdateState = speechRequestId === requestId
+      releaseRadio(cleanups, sound)
+      if (shouldUpdateState) {
+        speechPlaying.value = false
+      }
+    })
+
+    return true
+  } catch (error) {
+    releaseRadio(cleanups, sound)
+    console.error('Failed to apply radio effect', error)
+    return false
+  }
+}
+
+function stopAudio(advanceRequestId = true) {
+  speechPlaying.value = false
+
+  if (activeRadioSound || activeRadioCleanup.length) {
+    const sound = activeRadioSound
+    if (sound) {
+      try {
+        sound.stop()
+      } catch (error) {
+        console.warn('Failed to stop radio voice', error)
+      }
+    }
+    releaseRadio(activeRadioCleanup, sound ?? null)
+  }
+
+  if (audioElement.value) {
+    try {
+      audioElement.value.pause()
+      audioElement.value.currentTime = 0
+    } catch (error) {
+      console.warn('Failed to stop audio', error)
+    }
+    audioElement.value = null
+  }
+
+  if (advanceRequestId) {
+    speechRequestId += 1
+  }
+}
+
+async function speak(text: string, stageId?: string): Promise<boolean> {
+  const trimmed = text?.trim()
+  if (!trimmed) return false
+
+  stopAudio(false)
+
+  const requestId = ++speechRequestId
+
+  speechError.value = null
+  speechLoading.value = true
+  speechPlaying.value = false
+
+  try {
+    const payload: Record<string, unknown> = {
+      text: trimmed,
+      level: radioLevel.value,
+      speed: 1,
+      moduleId: 'learn-intro',
+      lessonId: stageId || null,
+      tag: 'learn-orientation'
+    }
+
+    const response: any = await api.post('/api/atc/say', payload)
+    if (requestId !== speechRequestId) {
+      return false
+    }
+
+    const base64 = response?.audio?.base64
+    if (!base64 || typeof base64 !== 'string') {
+      throw new Error('The radio voice is unavailable right now.')
+    }
+
+    const mime = response?.audio?.mime || 'audio/wav'
+    const readability = clampReadability(radioLevel.value)
+
+    const playedWithEffects = await playWithRadioEffect(base64, readability, requestId)
+    if (requestId !== speechRequestId) {
+      return false
+    }
+
+    if (playedWithEffects) {
+      return true
+    }
+
+    const audio = new Audio(`data:${mime};base64,${base64}`)
+
+    audio.onended = () => {
+      if (speechRequestId === requestId) {
+        speechPlaying.value = false
+        if (audioElement.value === audio) {
+          audioElement.value = null
+        }
+      }
+    }
+
+    audio.onerror = () => {
+      if (speechRequestId === requestId) {
+        speechPlaying.value = false
+        speechError.value = 'Playback failed. Check your audio output and try again.'
+        if (audioElement.value === audio) {
+          audioElement.value = null
+        }
+      }
+    }
+
+    audioElement.value = audio
+
+    try {
+      await audio.play()
+      if (speechRequestId === requestId) {
+        speechPlaying.value = true
+      }
+      return true
+    } catch (error) {
+      if (speechRequestId === requestId) {
+        speechError.value = 'Audio was blocked by the browser. Click anywhere on the page and try again.'
+        speechPlaying.value = false
+        if (audioElement.value === audio) {
+          audioElement.value = null
+        }
+      }
+      return false
+    }
+  } catch (error: any) {
+    if (speechRequestId === requestId) {
+      const message = typeof error?.message === 'string' ? error.message : 'The radio voice is unavailable right now.'
+      speechError.value = message
+    }
+    return false
+  } finally {
+    if (speechRequestId === requestId) {
+      speechLoading.value = false
+    }
+  }
+}
+
+async function handleRadioCheck() {
+  if (speechLoading.value) return
+  const success = await speak('Learner, this is Avery. If you can hear me loud and clear, give me a thumbs up and we will taxi to the first stop.', 'radio-check')
+  if (success) {
+    hasCompletedRadioCheck.value = true
+  }
+}
+
+async function maybeSpeakForStage() {
+  if (!tourStarted.value || voiceMode.value !== 'radio' || !hasCompletedRadioCheck.value) return
+  const stage = activeStage.value
+  if (!stage?.voiceLine) return
+  await nextTick()
+  await speak(stage.voiceLine, stage.id)
+}
+
+function replayStageVoice() {
+  maybeSpeakForStage()
+}
+
+async function startTour() {
+  if (startDisabled.value) return
+  stageIndex.value = 0
+  unlockedStageIndex.value = 0
+  if (!tourStarted.value) {
+    tourStarted.value = true
+    await nextTick()
+    if (typeof window !== 'undefined') {
+      document.getElementById('orientation')?.scrollIntoView({ behavior: 'smooth', block: 'start' })
+    }
+  }
+  await maybeSpeakForStage()
+}
+
+function goToStage(index: number) {
+  if (!tourStarted.value) return
+  if (index < 0 || index >= stages.length) return
+  if (index > unlockedStageIndex.value) return
+  if (stageIndex.value === index) {
+    maybeSpeakForStage()
+    return
+  }
+  stageIndex.value = index
+  maybeSpeakForStage()
+}
+
+function goToNext() {
+  if (!canGoNext.value) return
+  stageIndex.value = Math.min(stages.length - 1, stageIndex.value + 1)
+  unlockedStageIndex.value = Math.max(unlockedStageIndex.value, stageIndex.value)
+  maybeSpeakForStage()
+}
+
+function goToPrevious() {
+  if (!canGoPrevious.value) return
+  stageIndex.value = Math.max(0, stageIndex.value - 1)
+  maybeSpeakForStage()
+}
+
+function restartTour() {
+  stageIndex.value = 0
+  unlockedStageIndex.value = 0
+  if (!tourStarted.value) {
+    tourStarted.value = true
+  }
+  maybeSpeakForStage()
+}
+
+function setVoiceMode(mode: VoiceMode) {
+  if (voiceMode.value === mode) return
+  voiceMode.value = mode
+  stopAudio()
+  if (mode === 'radio') {
+    hasCompletedRadioCheck.value = false
+  } else {
+    speechError.value = null
+  }
+}
+
+watch(
+  () => [tourStarted.value, stageIndex.value, voiceMode.value, hasCompletedRadioCheck.value],
+  () => {
+    maybeSpeakForStage()
+  }
+)
+
+onBeforeUnmount(() => {
+  stopAudio()
+})
+</script>
+
+<style scoped>
+.voice-toggle {
+  transition: border-color 0.25s ease, background 0.25s ease, color 0.25s ease, box-shadow 0.25s ease;
+}
+
+.voice-toggle .v-icon {
+  color: color-mix(in srgb, var(--accent) 70%, white 30%);
+}
+
+.voice-toggle.active {
+  background: color-mix(in srgb, var(--accent) 14%, transparent);
+  border-color: color-mix(in srgb, var(--accent) 40%, transparent);
+  color: var(--text);
+  box-shadow: 0 12px 28px color-mix(in srgb, var(--accent) 26%, transparent);
+}
+
+.voice-toggle.active .v-icon {
+  color: color-mix(in srgb, var(--accent) 85%, white 15%);
+}
+
+.voice-replay {
+  color: var(--t2);
+}
+
+.voice-replay:disabled {
+  opacity: 0.6;
+}
+
+.play-again {
+  letter-spacing: 0.2em;
+  text-transform: uppercase;
+}
+
+.progress-fill {
+  height: 0.5rem;
+  border-radius: 9999px;
+  background: linear-gradient(90deg, rgba(34, 211, 238, 0.85), rgba(14, 165, 233, 0.92));
+  box-shadow: 0 0 18px rgba(14, 165, 233, 0.35);
+  transition: width 0.45s ease;
+}
+
+.fade-slide-enter-active,
+.fade-slide-leave-active {
+  transition: opacity 0.4s ease, transform 0.4s ease;
+}
+
+.fade-slide-enter-from,
+.fade-slide-leave-to {
+  opacity: 0;
+  transform: translateY(16px);
+}
+</style>
diff --git a/app/pages/learn.vue b/app/pages/learn.vue
index b009d48..85c8c6c 100644
--- a/app/pages/learn.vue
+++ b/app/pages/learn.vue
@@ -1,5 +1,5 @@
 <template>
-  <div class="scene">
+  <div class="scene learn-theme">
     <!-- APP BAR -->
     <header class="hud" role="banner">
       <nav class="hud-inner" aria-label="Global">
@@ -4268,42 +4268,6 @@ onMounted(() => {
 }
 
 
-/* Buttons */
-.btn {
-  display: inline-flex;
-  align-items: center;
-  gap: 8px;
-  padding: 10px 14px;
-  border: 1px solid var(--border);
-  background: color-mix(in srgb, var(--text) 6%, transparent);
-  color: var(--text);
-  font-weight: 600;
-  text-decoration: none
-}
-
-.btn:hover {
-  background: color-mix(in srgb, var(--text) 10%, transparent)
-}
-
-.btn.primary {
-  background: linear-gradient(180deg, color-mix(in srgb, var(--accent) 90%, transparent), color-mix(in srgb, var(--accent) 70%, transparent));
-  color: #061318;
-  border-color: color-mix(in srgb, var(--accent) 60%, transparent)
-}
-
-.btn.soft {
-  background: color-mix(in srgb, var(--text) 8%, transparent)
-}
-
-.btn.ghost {
-  background: transparent
-}
-
-.btn.mini {
-  padding: 6px 10px;
-  font-size: 12px
-}
-
 /* HUB tiles */
 .hub-head {
   margin: 6px 0 10px
diff --git a/nuxt.config.ts b/nuxt.config.ts
index 7ab64bd..6ce7b7e 100644
--- a/nuxt.config.ts
+++ b/nuxt.config.ts
@@ -62,6 +62,8 @@ export default defineNuxtConfig({
         }
     },
     css: [
-        '~/assets/css/global.css', '~/assets/css/opensquawk-glass.css'
+        '~/assets/css/global.css',
+        '~/assets/css/opensquawk-glass.css',
+        '~/assets/css/learn-theme.css'
     ],
-})
\ No newline at end of file
+})