diff --git a/pages/codev/fiche.vue b/pages/codev/fiche.vue
new file mode 100644
index 0000000..58367dd
--- /dev/null
+++ b/pages/codev/fiche.vue
@@ -0,0 +1,367 @@
+<template>
+  <div class="fiche-page">
+    <div class="fiche-inner">
+
+      <!-- En-tête -->
+      <div class="fiche-header">
+        <h1>Ma fiche</h1>
+        <p class="fiche-lead">3 lignes pour te présenter. Le reste se passe entre nous.</p>
+      </div>
+
+      <!-- Formulaire -->
+      <form class="fiche-form" @submit.prevent="submit" novalidate>
+
+        <!-- Nom -->
+        <div class="field-group">
+          <label for="nom">
+            Prénom <span class="required">*</span>
+          </label>
+          <input
+            id="nom"
+            v-model="form.nom"
+            type="text"
+            placeholder="Ex : Camille"
+            required
+            minlength="2"
+            maxlength="50"
+            :disabled="loading"
+          />
+        </div>
+
+        <!-- Besoin -->
+        <div class="field-group">
+          <div class="label-row">
+            <label for="besoin">
+              Mon besoin actuel <span class="required">*</span>
+            </label>
+            <button type="button" class="tooltip-trigger" @click="toggleTip('besoin')" aria-label="C'est quoi un besoin ?">?</button>
+          </div>
+          <details v-if="activeTip === 'besoin'" class="tooltip-block" open>
+            <summary class="sr-only">Aide</summary>
+            <p>Un besoin, c'est ce qui te manque pour avancer. Ca peut etre concret (un coup de main sur un dossier) ou plus large (clarifier ou tu vas). Pas grave si c'est flou - la rencontre IRL aide a le preciser.</p>
+          </details>
+          <textarea
+            id="besoin"
+            v-model="form.besoin"
+            rows="3"
+            placeholder="Ex : J'ai besoin d'aide pour structurer mon offre de prestation"
+            required
+            minlength="5"
+            maxlength="300"
+            :disabled="loading"
+          />
+          <span class="char-count" :class="{ 'char-warn': form.besoin.length > 260 }">
+            {{ form.besoin.length }}/300
+          </span>
+        </div>
+
+        <!-- Offre -->
+        <div class="field-group">
+          <div class="label-row">
+            <label for="offre">
+              Ce que j'offre a la communaute <span class="required">*</span>
+            </label>
+            <button type="button" class="tooltip-trigger" @click="toggleTip('offre')" aria-label="C'est quoi une offre ?">?</button>
+          </div>
+          <details v-if="activeTip === 'offre'" class="tooltip-block" open>
+            <summary class="sr-only">Aide</summary>
+            <p>Une offre, c'est une competence, une experience ou une qualite que tu peux partager. Ce que les autres viennent chercher chez toi naturellement.</p>
+          </details>
+          <textarea
+            id="offre"
+            v-model="form.offre"
+            rows="3"
+            placeholder="Ex : Je peux partager mon expérience en facilitation de groupe"
+            required
+            minlength="5"
+            maxlength="300"
+            :disabled="loading"
+          />
+          <span class="char-count" :class="{ 'char-warn': form.offre.length > 260 }">
+            {{ form.offre.length }}/300
+          </span>
+        </div>
+
+        <!-- Hashtags -->
+        <div class="field-group">
+          <label for="hashtags">
+            Mots-clés
+            <span class="label-hint">(optionnel, 3 max, séparés par des virgules)</span>
+          </label>
+          <input
+            id="hashtags"
+            v-model="form.hashtagsRaw"
+            type="text"
+            placeholder="Ex : business, écriture, écologie"
+            maxlength="120"
+            :disabled="loading"
+          />
+        </div>
+
+        <!-- Erreur serveur -->
+        <div v-if="error" class="server-error" role="alert">
+          {{ error }}
+        </div>
+
+        <!-- Bouton -->
+        <button type="submit" class="submit-btn" :disabled="loading">
+          {{ loading ? 'Envoi en cours...' : 'Ajouter ma fiche' }}
+        </button>
+
+      </form>
+
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+const form = ref({ nom: '', besoin: '', offre: '', hashtagsRaw: '' })
+const error = ref('')
+const loading = ref(false)
+const activeTip = ref<'besoin' | 'offre' | null>(null)
+
+useHead({ title: 'Ma fiche — Co-développement' })
+
+function toggleTip(field: 'besoin' | 'offre') {
+  activeTip.value = activeTip.value === field ? null : field
+}
+
+async function submit() {
+  error.value = ''
+  loading.value = true
+  try {
+    const hashtags = form.value.hashtagsRaw
+      .split(',')
+      .map((h) => h.trim().toLowerCase().replace(/^#/, ''))
+      .filter(Boolean)
+      .slice(0, 3)
+
+    await $fetch('/api/codev/fiches', {
+      method: 'POST',
+      body: {
+        nom: form.value.nom,
+        besoin: form.value.besoin,
+        offre: form.value.offre,
+        hashtags,
+      },
+    })
+    await navigateTo('/codev/carto')
+  } catch (e: any) {
+    error.value = e?.data?.message || e?.statusMessage || 'Erreur, reessaie'
+  } finally {
+    loading.value = false
+  }
+}
+</script>
+
+<style scoped>
+/* ── Layout ── */
+
+.fiche-page {
+  min-height: 100vh;
+  background: var(--nav-bg, #fafafa);
+  padding: 1.5rem 1rem 4rem;
+}
+
+.fiche-inner {
+  max-width: 480px;
+  margin: 0 auto;
+  display: flex;
+  flex-direction: column;
+  gap: 1.75rem;
+}
+
+/* ── En-tête ── */
+
+.fiche-header h1 {
+  font-size: 1.5rem;
+  font-weight: 700;
+  color: var(--nav-text, #1a1a2e);
+  margin: 0 0 0.375rem;
+}
+
+.fiche-lead {
+  font-size: 0.9rem;
+  color: var(--nav-text-muted, #6b7280);
+  margin: 0;
+  line-height: 1.5;
+}
+
+/* ── Formulaire ── */
+
+.fiche-form {
+  display: flex;
+  flex-direction: column;
+  gap: 1.25rem;
+}
+
+/* ── Champ ── */
+
+.field-group {
+  display: flex;
+  flex-direction: column;
+  gap: 0.375rem;
+}
+
+.field-group label {
+  font-size: 0.875rem;
+  font-weight: 600;
+  color: var(--nav-text, #1a1a2e);
+}
+
+.label-row {
+  display: flex;
+  align-items: center;
+  gap: 0.5rem;
+}
+
+.label-hint {
+  font-weight: 400;
+  font-size: 0.8rem;
+  color: var(--nav-text-muted, #6b7280);
+  margin-left: 0.25rem;
+}
+
+.required {
+  color: #c0392b;
+}
+
+.field-group input[type="text"],
+.field-group input[type="password"],
+.field-group textarea {
+  width: 100%;
+  padding: 0.75rem 0.875rem;
+  border: 1px solid var(--border-color, #d0d4dc);
+  border-radius: 8px;
+  font-size: 1rem;
+  color: var(--nav-text, #1a1a2e);
+  background: var(--nav-surface, #ffffff);
+  font-family: inherit;
+  transition: border-color 0.15s, box-shadow 0.15s;
+  box-sizing: border-box;
+}
+
+.field-group input:focus,
+.field-group textarea:focus {
+  outline: none;
+  border-color: var(--nav-primary-solid, #1B4436);
+  box-shadow: 0 0 0 2px rgba(27, 68, 54, 0.15);
+}
+
+.field-group input:disabled,
+.field-group textarea:disabled {
+  opacity: 0.6;
+  cursor: not-allowed;
+}
+
+.field-group textarea {
+  resize: vertical;
+  min-height: 80px;
+}
+
+.char-count {
+  font-size: 0.75rem;
+  color: var(--nav-text-muted, #6b7280);
+  text-align: right;
+}
+
+.char-warn {
+  color: #e67e22;
+}
+
+/* ── Tooltip ── */
+
+.tooltip-trigger {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  width: 20px;
+  height: 20px;
+  background: var(--nav-surface, #ffffff);
+  border: 1px solid var(--border-color, #d0d4dc);
+  border-radius: 50%;
+  font-size: 0.75rem;
+  font-weight: 700;
+  color: var(--nav-text-muted, #6b7280);
+  cursor: pointer;
+  padding: 0;
+  line-height: 1;
+  flex-shrink: 0;
+  transition: border-color 0.15s, color 0.15s;
+}
+
+.tooltip-trigger:hover {
+  border-color: var(--nav-primary-solid, #1B4436);
+  color: var(--nav-primary-solid, #1B4436);
+}
+
+.tooltip-block {
+  background: var(--nav-surface, #ffffff);
+  border: 1px solid var(--border-color, #d0d4dc);
+  border-radius: 8px;
+  padding: 0.75rem 0.875rem;
+  font-size: 0.85rem;
+  color: var(--nav-text-muted, #6b7280);
+  line-height: 1.5;
+}
+
+.tooltip-block p {
+  margin: 0;
+}
+
+.sr-only {
+  position: absolute;
+  width: 1px;
+  height: 1px;
+  padding: 0;
+  margin: -1px;
+  overflow: hidden;
+  clip: rect(0, 0, 0, 0);
+  border: 0;
+}
+
+/* ── Erreur serveur ── */
+
+.server-error {
+  padding: 0.75rem 0.875rem;
+  background: #fdf0ee;
+  border: 1px solid #e74c3c;
+  border-radius: 8px;
+  font-size: 0.875rem;
+  color: #c0392b;
+}
+
+/* ── Bouton ── */
+
+.submit-btn {
+  width: 100%;
+  padding: 0.875rem 1rem;
+  background: var(--nav-primary-solid, #1B4436);
+  color: #ffffff;
+  border: none;
+  border-radius: 8px;
+  font-size: 1rem;
+  font-weight: 600;
+  cursor: pointer;
+  font-family: inherit;
+  transition: opacity 0.15s;
+  margin-top: 0.25rem;
+}
+
+.submit-btn:hover:not(:disabled) {
+  opacity: 0.88;
+}
+
+.submit-btn:disabled {
+  opacity: 0.45;
+  cursor: not-allowed;
+}
+
+/* ── Responsive ── */
+
+@media (max-width: 480px) {
+  .fiche-page {
+    padding: 1.25rem 1rem 3rem;
+  }
+}
+</style>
diff --git a/pages/codev/index.vue b/pages/codev/index.vue
new file mode 100644
index 0000000..cb8e4b3
--- /dev/null
+++ b/pages/codev/index.vue
@@ -0,0 +1,217 @@
+<template>
+  <div class="lock-page">
+    <div class="lock-inner">
+
+      <div class="lock-header">
+        <h1>Co-développement</h1>
+        <p class="lock-subtitle">Entraide entre pairs</p>
+        <p class="lock-intro">Cet espace est un cercle. Pour entrer, il y a un mot.</p>
+      </div>
+
+      <form class="lock-form" @submit.prevent="submit" novalidate>
+
+        <div class="field-group">
+          <input
+            id="password"
+            v-model="password"
+            type="password"
+            placeholder="Mot de passe"
+            autocomplete="current-password"
+            required
+            :disabled="loading"
+            class="lock-input"
+          />
+        </div>
+
+        <div v-if="error" class="lock-error" role="alert">
+          {{ error }}
+        </div>
+
+        <button type="submit" class="lock-btn" :disabled="loading || !password">
+          {{ loading ? 'Vérification...' : 'Entrer' }}
+        </button>
+
+      </form>
+
+      <div class="lock-footer">
+        <NuxtLink to="/codev/demo" class="demo-link">Voir l'exemple &rarr;</NuxtLink>
+      </div>
+
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+const password = ref('')
+const error = ref('')
+const loading = ref(false)
+
+useHead({ title: 'Co-développement — Entraide entre pairs' })
+
+async function submit() {
+  error.value = ''
+  loading.value = true
+  try {
+    await $fetch('/api/codev/auth', {
+      method: 'POST',
+      body: { password: password.value },
+    })
+    await navigateTo('/codev/fiche')
+  } catch (e: any) {
+    error.value = e?.statusMessage || 'Mauvais mot de passe'
+  } finally {
+    loading.value = false
+  }
+}
+</script>
+
+<style scoped>
+/* ── Layout ── */
+
+.lock-page {
+  min-height: 100vh;
+  background: var(--nav-bg, #fafafa);
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  padding: 1.5rem 1rem;
+}
+
+.lock-inner {
+  width: 100%;
+  max-width: 400px;
+  display: flex;
+  flex-direction: column;
+  gap: 2rem;
+}
+
+/* ── En-tête ── */
+
+.lock-header {
+  text-align: center;
+}
+
+.lock-header h1 {
+  font-size: 1.75rem;
+  font-weight: 700;
+  color: var(--nav-text, #1a1a2e);
+  margin: 0 0 0.375rem;
+}
+
+.lock-subtitle {
+  font-size: 1rem;
+  color: var(--nav-text-muted, #6b7280);
+  margin: 0 0 1rem;
+}
+
+.lock-intro {
+  font-size: 0.9rem;
+  color: var(--nav-text-muted, #6b7280);
+  line-height: 1.5;
+  margin: 0;
+  font-style: italic;
+}
+
+/* ── Formulaire ── */
+
+.lock-form {
+  display: flex;
+  flex-direction: column;
+  gap: 0.875rem;
+}
+
+.field-group {
+  display: flex;
+  flex-direction: column;
+}
+
+.lock-input {
+  width: 100%;
+  padding: 0.875rem 1rem;
+  border: 1px solid var(--border-color, #d0d4dc);
+  border-radius: 8px;
+  font-size: 1rem;
+  color: var(--nav-text, #1a1a2e);
+  background: var(--nav-surface, #ffffff);
+  font-family: inherit;
+  text-align: center;
+  letter-spacing: 0.1em;
+  transition: border-color 0.15s, box-shadow 0.15s;
+  box-sizing: border-box;
+}
+
+.lock-input:focus {
+  outline: none;
+  border-color: var(--nav-primary-solid, #1B4436);
+  box-shadow: 0 0 0 2px rgba(27, 68, 54, 0.15);
+}
+
+.lock-input:disabled {
+  opacity: 0.6;
+  cursor: not-allowed;
+}
+
+/* ── Erreur ── */
+
+.lock-error {
+  padding: 0.625rem 0.875rem;
+  background: #fdf0ee;
+  border: 1px solid #e74c3c;
+  border-radius: 8px;
+  font-size: 0.875rem;
+  color: #c0392b;
+  text-align: center;
+}
+
+/* ── Bouton ── */
+
+.lock-btn {
+  width: 100%;
+  padding: 0.875rem 1rem;
+  background: var(--nav-primary-solid, #1B4436);
+  color: #ffffff;
+  border: none;
+  border-radius: 8px;
+  font-size: 1rem;
+  font-weight: 600;
+  cursor: pointer;
+  font-family: inherit;
+  transition: opacity 0.15s;
+}
+
+.lock-btn:hover:not(:disabled) {
+  opacity: 0.88;
+}
+
+.lock-btn:disabled {
+  opacity: 0.45;
+  cursor: not-allowed;
+}
+
+/* ── Pied de page ── */
+
+.lock-footer {
+  text-align: center;
+}
+
+.demo-link {
+  font-size: 0.875rem;
+  color: var(--nav-text-muted, #6b7280);
+  text-decoration: none;
+  transition: color 0.15s;
+}
+
+.demo-link:hover {
+  color: var(--nav-primary-solid, #1B4436);
+}
+
+/* ── Responsive ── */
+
+@media (max-width: 480px) {
+  .lock-page {
+    padding: 1.25rem 1rem 2.5rem;
+    align-items: flex-start;
+    padding-top: 3rem;
+  }
+}
+</style>
diff --git a/server/middleware/codev-auth.ts b/server/middleware/codev-auth.ts
new file mode 100644
index 0000000..dfab87b
--- /dev/null
+++ b/server/middleware/codev-auth.ts
@@ -0,0 +1,20 @@
+// Middleware server Nuxt — protection des routes /codev/fiche et /codev/carto
+// Laisse passer /codev (lock screen), /codev/demo et toutes les routes /api/*
+
+export default defineEventHandler((event) => {
+  const url = getRequestURL(event)
+  const path = url.pathname
+
+  // Seulement les routes sous /codev/
+  if (!path.startsWith('/codev/')) return
+
+  // Routes publiques : /codev/demo (et sous-routes éventuelles)
+  if (path === '/codev/demo' || path.startsWith('/codev/demo/')) return
+
+  // Vérification cookie
+  const session = getCookie(event, 'codev_session')
+  if (session === 'ok') return
+
+  // Non authentifié -> redirect vers /codev (lock screen)
+  return sendRedirect(event, '/codev', 302)
+})