[#MUI-37] Création d'un composant accordéon (#54 )

| Numéro du ticket | Titre du ticket | |------------------|-----------------| | | | ## Description de la PR ## Modification du .env ## Check list - [ ] Pas de régression - [ ] TU/TI/TF rédigée - [ ] TU/TI/TF OK - [ ] CHANGELOG modifié Reviewed-on: #54 Co-authored-by: tristan <tristan@yuno.malio.fr> Co-committed-by: tristan <tristan@yuno.malio.fr>
[#MUI-36] Création d'un composant modal (#53 )
2026-05-27 07:12:10 +00:00 · 2026-05-26 07:36:13 +00:00 · 2026-05-22 09:59:06 +02:00 · 2026-05-22 07:56:07 +00:00 · 2026-05-22 09:03:49 +02:00 · 2026-05-21 15:17:58 +00:00
19 changed files with 3947 additions and 0 deletions
@@ -0,0 +1,63 @@
+<template>
+  <div class="grid grid-cols-1 items-start gap-6 md:grid-cols-2">
+    <div class="rounded-lg border p-4">
+      <h2 class="mb-4 text-xl font-bold">Multiple (filtres) — défaut</h2>
+      <MalioAccordion v-model="multiple">
+        <MalioAccordionItem title="Prix" value="prix">
+          <p>Slider de prix ici…</p>
+        </MalioAccordionItem>
+        <MalioAccordionItem title="Catégorie" value="cat">
+          <p>Liste de checkboxes ici…</p>
+        </MalioAccordionItem>
+        <MalioAccordionItem title="Marque" value="marque">
+          <p>Recherche + liste ici…</p>
+        </MalioAccordionItem>
+      </MalioAccordion>
+      <p class="mt-2 text-sm text-gray-500">Ouverts : {{ multiple }}</p>
+    </div>
+
+    <div class="rounded-lg border p-4">
+      <h2 class="mb-4 text-xl font-bold">Single (FAQ)</h2>
+      <MalioAccordion v-model="single" mode="single">
+        <MalioAccordionItem title="Question 1" value="q1">
+          <p>Réponse 1</p>
+        </MalioAccordionItem>
+        <MalioAccordionItem title="Question 2" value="q2">
+          <p>Réponse 2</p>
+        </MalioAccordionItem>
+      </MalioAccordion>
+      <p class="mt-2 text-sm text-gray-500">Ouvert : {{ single }}</p>
+    </div>
+
+    <div class="rounded-lg border p-4">
+      <h2 class="mb-4 text-xl font-bold">Non contrôlé + defaultOpen</h2>
+      <MalioAccordion>
+        <MalioAccordionItem title="Section A" value="a" :default-open="true">
+          <p>Ouverte au montage</p>
+        </MalioAccordionItem>
+        <MalioAccordionItem title="Section B" value="b">
+          <p>Fermée au montage</p>
+        </MalioAccordionItem>
+      </MalioAccordion>
+    </div>
+
+    <div class="rounded-lg border p-4">
+      <h2 class="mb-4 text-xl font-bold">Section désactivée</h2>
+      <MalioAccordion>
+        <MalioAccordionItem title="Active" value="ok">
+          <p>Contenu accessible</p>
+        </MalioAccordionItem>
+        <MalioAccordionItem title="Désactivée" value="ko" :disabled="true">
+          <p>Inaccessible</p>
+        </MalioAccordionItem>
+      </MalioAccordion>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import {ref} from 'vue'
+
+const multiple = ref<string[]>(['prix'])
+const single = ref('q1')
+</script>
@@ -0,0 +1,88 @@
+<template>
+  <div class="flex justify-center">
+    <div class="w-[1348px]">
+      <div class="flex items-center justify-between mt-[46px]">
+        <div class="flex items-center gap-3">
+          <MalioButtonIcon
+            icon="mdi:arrow-left-bold"
+            icon-size="24"
+            aria-label="Précédent"
+            variant="ghost"
+          />
+          <h1 class="text-[32px] text-m-primary font-bold">Filtres</h1>
+        </div>
+        <MalioButton
+          label="Filtres"
+          variant="tertiary"
+          icon-name="mdi:tune"
+          icon-position="left"
+          button-class="w-[184px] px-2 py-2 justify-start text-black gap-4"
+          @click="drawerOpen = true"
+        />
+      </div>
+    </div>
+
+    <MalioDrawer
+      v-model="drawerOpen"
+      side="right"
+      drawer-class="max-w-[450px]"
+      body-class="p-0"
+      footer-class="sticky bottom-0 flex justify-between gap-4 bg-white px-5 py-7"
+    >
+      <template #header>
+        <h2 class="text-[24px] font-bold uppercase">Filtres</h2>
+      </template>
+
+      <MalioAccordion>
+        <MalioAccordionItem title="Type de camion" value="camion">
+          <div class="flex flex-col gap-6">
+            <MalioCheckbox v-model="semiBenne" label="Semi Benne" />
+            <MalioCheckbox v-model="benne" label="Benne" />
+          </div>
+        </MalioAccordionItem>
+
+        <MalioAccordionItem title="Date à Date" value="date">
+          <div class="grid grid-cols-[auto_1fr] items-center gap-x-3 gap-y-4">
+            <span>Du</span>
+            <MalioDate v-model="dateDebut"/>
+            <span>Au</span>
+            <MalioDate v-model="dateFin"/>
+          </div>
+        </MalioAccordionItem>
+      </MalioAccordion>
+
+      <template #footer>
+        <MalioButton
+          label="Réinitialiser"
+          variant="tertiary"
+          button-class="w-[150px]"
+          @click="resetFiltres"
+        />
+        <MalioButton
+          label="Voir les résultats"
+          variant="primary"
+          button-class="w-[170px]"
+        />
+      </template>
+    </MalioDrawer>
+  </div>
+</template>
+
+<script setup lang="ts">
+import {ref} from 'vue'
+
+const drawerOpen = ref(false)
+
+const semiBenne = ref(false)
+const benne = ref(false)
+
+const dateDebut = ref<string | null>(null)
+const dateFin = ref<string | null>(null)
+
+function resetFiltres() {
+  semiBenne.value = false
+  benne.value = false
+  dateDebut.value = null
+  dateFin.value = null
+}
+</script>
@@ -0,0 +1,74 @@
+<script setup lang="ts">
+import { ref } from 'vue'
+import MalioButton from "../../../../app/components/malio/button/Button.vue";
+
+const modalBase = ref(false)
+const modalForm = ref(false)
+const modalLong = ref(false)
+const modalNoDismiss = ref(false)
+</script>
+
+<template>
+  <div class="grid grid-cols-1 items-start gap-6 md:grid-cols-2">
+    <div class="rounded-lg border p-6">
+      <h2 class="mb-6 text-xl font-bold">Modal simple</h2>
+      <MalioButton label="Ouvrir" @click="modalBase = true" />
+      <MalioModal v-model="modalBase" headerClass="py-7 px-[25px]" footerClass="flex justify-center pt-8">
+        <template #header>
+          <h2 class="text-[24px] font-bold text-black">Marquer comme vu ?</h2>
+        </template>
+        <template #footer>
+          <MalioButton label="Valider"/>
+        </template>
+      </MalioModal>
+    </div>
+
+    <div class="rounded-lg border p-6">
+      <h2 class="mb-6 text-xl font-bold">Avec footer d'actions</h2>
+      <MalioButton label="Ouvrir le formulaire" variant="tertiary" @click="modalForm = true" />
+      <MalioModal v-model="modalForm" modal-class="max-w-lg">
+        <template #header>
+          <h2 class="text-[24px] font-bold text-black">Nouveau contact</h2>
+        </template>
+        <div class="flex flex-col gap-4 py-2">
+          <MalioInputText label="Nom" />
+          <MalioInputText label="Prénom" />
+          <MalioInputText label="Email" />
+        </div>
+        <template #footer>
+          <MalioButton label="Annuler" variant="secondary" button-class="flex-1" @click="modalForm = false" />
+          <MalioButton label="Enregistrer" button-class="flex-1" @click="modalForm = false" />
+        </template>
+      </MalioModal>
+    </div>
+
+    <div class="rounded-lg border p-6">
+      <h2 class="mb-6 text-xl font-bold">Contenu long (body scrollable)</h2>
+      <MalioButton label="Ouvrir" variant="tertiary" @click="modalLong = true" />
+      <MalioModal v-model="modalLong">
+        <template #header>
+          <h2 class="text-[24px] font-bold text-black">Conditions</h2>
+        </template>
+        <div class="flex flex-col gap-4">
+          <p v-for="n in 20" :key="n" class="text-m-text">
+            Paragraphe {{ n }} — contenu long pour forcer le scroll interne ; le header et le footer restent fixes.
+          </p>
+        </div>
+        <template #footer>
+          <MalioButton label="Accepter" button-class="w-full" @click="modalLong = false" />
+        </template>
+      </MalioModal>
+    </div>
+
+    <div class="rounded-lg border p-6">
+      <h2 class="mb-6 text-xl font-bold">Non dismissable (croix uniquement)</h2>
+      <MalioButton label="Ouvrir" variant="danger" @click="modalNoDismiss = true" />
+      <MalioModal v-model="modalNoDismiss" :dismissable="false" :close-on-escape="false">
+        <template #header>
+          <h2 class="text-[24px] font-bold text-black">Action requise</h2>
+        </template>
+        <p class="text-m-text">Ni le backdrop ni Échap ne ferment cette modal. Utilisez la croix.</p>
+      </MalioModal>
+    </div>
+  </div>
+</template>
@@ -52,7 +52,9 @@ export const navSections: SidebarSection[] = [
    items: [
      {label: 'Sidebar', to: '/composant/sidebar/sidebar'},
      {label: 'Drawer', to: '/composant/drawer/drawer'},
+      {label: 'Modal', to: '/composant/modal/modal'},
      {label: 'Onglets', to: '/composant/tab/tabList'},
+      {label: 'Accordéon', to: '/composant/accordion/accordion'},
    ],
  },
  {
@@ -69,6 +71,7 @@ export const navSections: SidebarSection[] = [
      {label: 'Heure', to: '/composant/time/time'},
      {label: 'Sélecteur de site', to: '/composant/site/siteSelector'},
      {label: 'Formulaire client', to: '/composant/form/client'},
+      {label: 'Filtres', to: '/composant/filtre/filtres'},
    ],
  },
 ]
@@ -33,6 +33,8 @@ Liste des évolutions de la librairie Malio layer UI
 * [#MUI-34] Revoir le système de playground
 * [#MUI-33] Développer le composant Datepicker
 * [#MUI-33] Création du composant DateTime (date + heure, sélecteur d'heure natif intérimaire)
+* [#MUI-36] Création d'un composant modal (dialogue centré, focus-trap, scroll-lock, footer fixe)
+* [#MUI-37] Création d'un composant accordéon

 ### Changed
 * [#MUI-35] Refonte du composant drawer : slots `#header`/`#footer`, prop `side` (droite/gauche), `dismissable`, `closeOnEscape`, classes d'override, focus-trap, scroll-lock et fermeture au clavier. **Breaking** : la prop `title` est remplacée par le slot `#header`.
@@ -694,6 +694,54 @@ const tabs = computed(() => [

 ---

+## MalioAccordion
+
+Accordéon compositionnel : `<MalioAccordion>` enveloppe des `<MalioAccordionItem>`. Plusieurs panneaux ouverts (`multiple`, défaut) ou un seul (`single`). Pensé pour les filtres en drawer et les FAQ.
+
+### MalioAccordion
+
+| Prop | Type | Défaut | Description |
+|------|------|--------|-------------|
+| `mode` | `'single' \| 'multiple'` | `'multiple'` | Un seul ou plusieurs panneaux ouverts |
+| `modelValue` | `string \| string[]` | `undefined` | Clés ouvertes (v-model). `string[]` en `multiple`, `string` en `single` |
+| `id` | `string` | auto | Préfixe des IDs d'accessibilité |
+| `groupClass` | `string` | `''` | Classes du conteneur (twMerge) |
+
+**Events :** `update:modelValue(value: string | string[])`
+
+### MalioAccordionItem
+
+| Prop | Type | Défaut | Description |
+|------|------|--------|-------------|
+| `title` | `string` | — | Texte de l'en-tête |
+| `value` | `string` | auto | Clé unique de la section |
+| `defaultOpen` | `boolean` | `false` | Ouvert au montage (mode non contrôlé) |
+| `disabled` | `boolean` | `false` | En-tête non cliquable |
+| `headerClass` | `string` | `''` | Override classes en-tête (twMerge) |
+| `panelClass` | `string` | `''` | Override classes panneau (twMerge) |
+
+**Slot :** par défaut = contenu du panneau.
+
+```vue
+<!-- Filtres : plusieurs sections ouvertes -->
+<MalioAccordion v-model="ouverts">
+  <MalioAccordionItem title="Prix" value="prix">
+    <MalioInputAmount v-model="prix" />
+  </MalioAccordionItem>
+  <MalioAccordionItem title="Catégorie" value="cat">
+    <MalioCheckbox v-model="cats" />
+  </MalioAccordionItem>
+</MalioAccordion>
+
+<!-- FAQ : une seule section ouverte -->
+<MalioAccordion mode="single">
+  <MalioAccordionItem title="Question 1" value="q1">Réponse 1</MalioAccordionItem>
+  <MalioAccordionItem title="Question 2" value="q2">Réponse 2</MalioAccordionItem>
+</MalioAccordion>
+```
+
+---
+
 ## MalioSidebar

 Barre latérale de navigation rétractable.
@@ -779,6 +827,58 @@ Panneau latéral (drawer) qui s'ouvre depuis la droite ou la gauche avec backdro

 ---

+## MalioModal
+
+Boîte de dialogue modale centrée avec backdrop semi-transparent. Gère l'accessibilité (focus-trap, restitution du focus, `Échap`), le verrouillage du scroll de la page et un empilement correct de plusieurs modals. Structure : header fixe, body scrollable (`max-h-[85vh]`), footer fixe.
+
+| Prop | Type | Défaut | Description |
+|------|------|--------|-------------|
+| `id` | `string` | auto | Identifiant HTML |
+| `modelValue` | `boolean` | `undefined` | État ouvert/fermé (v-model) |
+| `showClose` | `boolean` | `true` | Afficher le bouton de fermeture (croix) |
+| `dismissable` | `boolean` | `true` | Fermer au clic sur le backdrop |
+| `closeOnEscape` | `boolean` | `true` | Fermer avec la touche `Échap` |
+| `ariaLabel` | `string` | `''` | Nom accessible de secours quand le slot `#header` est absent |
+| `modalClass` | `string` | `''` | Classes CSS panneau, ex. largeur `max-w-lg` (twMerge) |
+| `overlayClass` | `string` | `''` | Classes CSS backdrop (twMerge) |
+| `headerClass` | `string` | `''` | Classes CSS barre header (twMerge) |
+| `bodyClass` | `string` | `''` | Classes CSS zone scrollable (twMerge) |
+| `footerClass` | `string` | `''` | Classes CSS footer fixe (twMerge) |
+
+**Events :** `update:modelValue(value: boolean)`, `close()`
+
+**Slots :**
+- `header` — en-tête (titre, etc.). S'il est absent et que `showClose` est `true`, seule la croix est affichée.
+- `default` — contenu (zone scrollable).
+- `footer` — actions (boutons). Rendu en bas, fixe, séparé par une bordure. N'apparaît que si le slot est fourni.
+
+```vue
+<MalioModal v-model="isOpen">
+  <template #header>
+    <h2 class="text-[24px] font-bold">Détails</h2>
+  </template>
+  <p>Contenu de la modal</p>
+</MalioModal>
+
+<!-- Largeur custom + footer d'actions -->
+<MalioModal v-model="isOpen" modal-class="max-w-lg">
+  <template #header><h2>Nouveau contact</h2></template>
+  <MalioInputText label="Nom" />
+  <template #footer>
+    <MalioButton label="Annuler" variant="secondary" button-class="flex-1" @click="isOpen = false" />
+    <MalioButton label="Enregistrer" button-class="flex-1" @click="isOpen = false" />
+  </template>
+</MalioModal>
+
+<!-- Non fermable au backdrop / Échap (croix uniquement) -->
+<MalioModal v-model="isOpen" :dismissable="false" :close-on-escape="false">
+  <template #header><h2>Action requise</h2></template>
+  <p>Fermeture via la croix uniquement</p>
+</MalioModal>
+```
+
+---
+
 ## MalioDataTable

 Tableau de données presentational avec pagination, filtres par slots et lignes cliquables.
@@ -0,0 +1,256 @@
+import {describe, expect, it} from 'vitest'
+import {mount} from '@vue/test-utils'
+import {nextTick} from 'vue'
+import Accordion from './Accordion.vue'
+import AccordionItem from './AccordionItem.vue'
+
+const TWO_ITEMS = `
+  <MalioAccordionItem title="Prix" value="prix"><p>Contenu prix</p></MalioAccordionItem>
+  <MalioAccordionItem title="Catégorie" value="cat"><p>Contenu catégorie</p></MalioAccordionItem>
+`
+
+function mountAccordion(props: Record<string, unknown> = {}, slot: string = TWO_ITEMS, attachTo?: HTMLElement) {
+  return mount(Accordion, {
+    props,
+    slots: {default: slot},
+    attachTo,
+    global: {components: {MalioAccordionItem: AccordionItem}},
+  })
+}
+
+describe('MalioAccordion — rendu & mode multiple', () => {
+  it('renders each item header with its title', () => {
+    const wrapper = mountAccordion()
+    const headers = wrapper.findAll('button[aria-expanded]')
+    expect(headers).toHaveLength(2)
+    expect(headers[0].text()).toContain('Prix')
+    expect(headers[1].text()).toContain('Catégorie')
+  })
+
+  it('renders the slot content of each panel', () => {
+    const wrapper = mountAccordion()
+    expect(wrapper.html()).toContain('Contenu prix')
+    expect(wrapper.html()).toContain('Contenu catégorie')
+  })
+
+  it('all panels are collapsed by default', () => {
+    const wrapper = mountAccordion()
+    const headers = wrapper.findAll('button[aria-expanded]')
+    expect(headers[0].attributes('aria-expanded')).toBe('false')
+    expect(headers[1].attributes('aria-expanded')).toBe('false')
+    const regions = wrapper.findAll('[role="region"]')
+    expect(regions[0].classes()).toContain('grid-rows-[0fr]')
+  })
+
+  it('opens a panel on header click (multiple mode is default)', async () => {
+    const wrapper = mountAccordion()
+    const headers = wrapper.findAll('button[aria-expanded]')
+    await headers[0].trigger('click')
+    expect(headers[0].attributes('aria-expanded')).toBe('true')
+    const regions = wrapper.findAll('[role="region"]')
+    expect(regions[0].classes()).toContain('grid-rows-[1fr]')
+  })
+
+  it('keeps multiple panels open simultaneously in multiple mode', async () => {
+    const wrapper = mountAccordion()
+    const headers = wrapper.findAll('button[aria-expanded]')
+    await headers[0].trigger('click')
+    await headers[1].trigger('click')
+    expect(headers[0].attributes('aria-expanded')).toBe('true')
+    expect(headers[1].attributes('aria-expanded')).toBe('true')
+  })
+
+  it('closes an open panel when its header is clicked again', async () => {
+    const wrapper = mountAccordion()
+    const headers = wrapper.findAll('button[aria-expanded]')
+    await headers[0].trigger('click')
+    await headers[0].trigger('click')
+    expect(headers[0].attributes('aria-expanded')).toBe('false')
+  })
+
+  it('wires aria-controls / aria-labelledby / role=region correctly', () => {
+    const wrapper = mountAccordion({id: 'acc'})
+    const headers = wrapper.findAll('button[aria-expanded]')
+    const regions = wrapper.findAll('[role="region"]')
+    expect(headers[0].attributes('id')).toBe('acc-header-prix')
+    expect(headers[0].attributes('aria-controls')).toBe('acc-panel-prix')
+    expect(regions[0].attributes('id')).toBe('acc-panel-prix')
+    expect(regions[0].attributes('aria-labelledby')).toBe('acc-header-prix')
+  })
+
+  it('emits update:modelValue with an array in multiple mode', async () => {
+    const wrapper = mountAccordion()
+    const headers = wrapper.findAll('button[aria-expanded]')
+    await headers[0].trigger('click')
+    expect(wrapper.emitted('update:modelValue')?.[0]).toEqual([['prix']])
+    await nextTick()
+  })
+})
+
+describe('MalioAccordion — mode single & contrôlé', () => {
+  it('opening a panel closes the others in single mode', async () => {
+    const wrapper = mountAccordion({mode: 'single'})
+    const headers = wrapper.findAll('button[aria-expanded]')
+    await headers[0].trigger('click')
+    await headers[1].trigger('click')
+    expect(headers[0].attributes('aria-expanded')).toBe('false')
+    expect(headers[1].attributes('aria-expanded')).toBe('true')
+  })
+
+  it('emits a string in single mode', async () => {
+    const wrapper = mountAccordion({mode: 'single'})
+    const headers = wrapper.findAll('button[aria-expanded]')
+    await headers[1].trigger('click')
+    expect(wrapper.emitted('update:modelValue')?.[0]).toEqual(['cat'])
+  })
+
+  it('emits empty string when closing the open panel in single mode', async () => {
+    const wrapper = mountAccordion({mode: 'single', modelValue: 'prix'})
+    const headers = wrapper.findAll('button[aria-expanded]')
+    await headers[0].trigger('click')
+    expect(wrapper.emitted('update:modelValue')?.[0]).toEqual([''])
+  })
+
+  it('respects modelValue array in controlled multiple mode', () => {
+    const wrapper = mountAccordion({modelValue: ['cat']})
+    const headers = wrapper.findAll('button[aria-expanded]')
+    expect(headers[0].attributes('aria-expanded')).toBe('false')
+    expect(headers[1].attributes('aria-expanded')).toBe('true')
+  })
+
+  it('respects modelValue string in controlled single mode', () => {
+    const wrapper = mountAccordion({mode: 'single', modelValue: 'prix'})
+    const headers = wrapper.findAll('button[aria-expanded]')
+    expect(headers[0].attributes('aria-expanded')).toBe('true')
+    expect(headers[1].attributes('aria-expanded')).toBe('false')
+  })
+
+  it('does not mutate local state in controlled mode (emits only)', async () => {
+    const wrapper = mountAccordion({modelValue: []})
+    const headers = wrapper.findAll('button[aria-expanded]')
+    await headers[0].trigger('click')
+    // état piloté par le parent : sans mise à jour de la prop, reste fermé
+    expect(headers[0].attributes('aria-expanded')).toBe('false')
+    expect(wrapper.emitted('update:modelValue')?.[0]).toEqual([['prix']])
+  })
+})
+
+describe('MalioAccordion — defaultOpen, disabled & clavier', () => {
+  const WITH_DEFAULT_OPEN = `
+    <MalioAccordionItem title="Prix" value="prix"><p>P</p></MalioAccordionItem>
+    <MalioAccordionItem title="Catégorie" value="cat" :default-open="true"><p>C</p></MalioAccordionItem>
+  `
+  const WITH_DISABLED = `
+    <MalioAccordionItem title="Prix" value="prix"><p>P</p></MalioAccordionItem>
+    <MalioAccordionItem title="Catégorie" value="cat" :disabled="true"><p>C</p></MalioAccordionItem>
+  `
+
+  it('opens defaultOpen items initially in uncontrolled mode', async () => {
+    const wrapper = mountAccordion({}, WITH_DEFAULT_OPEN)
+    await nextTick()
+    const headers = wrapper.findAll('button[aria-expanded]')
+    expect(headers[0].attributes('aria-expanded')).toBe('false')
+    expect(headers[1].attributes('aria-expanded')).toBe('true')
+  })
+
+  it('sets disabled and aria-disabled on a disabled item', () => {
+    const wrapper = mountAccordion({}, WITH_DISABLED)
+    const headers = wrapper.findAll('button[aria-expanded]')
+    expect(headers[1].attributes('disabled')).toBeDefined()
+    expect(headers[1].attributes('aria-disabled')).toBe('true')
+  })
+
+  it('does not toggle a disabled item on click', async () => {
+    const wrapper = mountAccordion({}, WITH_DISABLED)
+    const headers = wrapper.findAll('button[aria-expanded]')
+    await headers[1].trigger('click')
+    expect(headers[1].attributes('aria-expanded')).toBe('false')
+    expect(wrapper.emitted('update:modelValue')).toBeUndefined()
+  })
+
+  it('moves focus to the next header on ArrowDown', async () => {
+    const root = document.createElement('div')
+    document.body.appendChild(root)
+    const wrapper = mountAccordion({}, TWO_ITEMS, root)
+    const headers = wrapper.findAll('button[aria-expanded]')
+    ;(headers[0].element as HTMLElement).focus()
+    await headers[0].trigger('keydown', {key: 'ArrowDown'})
+    expect(document.activeElement).toBe(headers[1].element)
+    wrapper.unmount()
+    root.remove()
+  })
+
+  it('wraps focus to the first header on ArrowDown from the last', async () => {
+    const root = document.createElement('div')
+    document.body.appendChild(root)
+    const wrapper = mountAccordion({}, TWO_ITEMS, root)
+    const headers = wrapper.findAll('button[aria-expanded]')
+    ;(headers[1].element as HTMLElement).focus()
+    await headers[1].trigger('keydown', {key: 'ArrowDown'})
+    expect(document.activeElement).toBe(headers[0].element)
+    wrapper.unmount()
+    root.remove()
+  })
+
+  it('moves focus to the previous header on ArrowUp', async () => {
+    const root = document.createElement('div')
+    document.body.appendChild(root)
+    const wrapper = mountAccordion({}, TWO_ITEMS, root)
+    const headers = wrapper.findAll('button[aria-expanded]')
+    ;(headers[1].element as HTMLElement).focus()
+    await headers[1].trigger('keydown', {key: 'ArrowUp'})
+    expect(document.activeElement).toBe(headers[0].element)
+    wrapper.unmount()
+    root.remove()
+  })
+
+  it('skips disabled headers during keyboard navigation', async () => {
+    const root = document.createElement('div')
+    document.body.appendChild(root)
+    const slot = `
+      <MalioAccordionItem title="A" value="a"><p>A</p></MalioAccordionItem>
+      <MalioAccordionItem title="B" value="b" :disabled="true"><p>B</p></MalioAccordionItem>
+      <MalioAccordionItem title="C" value="c"><p>C</p></MalioAccordionItem>
+    `
+    const wrapper = mountAccordion({}, slot, root)
+    const headers = wrapper.findAll('button[aria-expanded]')
+    ;(headers[0].element as HTMLElement).focus()
+    await headers[0].trigger('keydown', {key: 'ArrowDown'})
+    // saute le header désactivé (B) pour aller directement à C
+    expect(document.activeElement).toBe(headers[2].element)
+    wrapper.unmount()
+    root.remove()
+  })
+})
+
+describe('MalioAccordion — overflow du panneau (popovers enfants)', () => {
+  const ONE = `<MalioAccordionItem title="A" value="a"><p>contenu</p></MalioAccordionItem>`
+  const ONE_OPEN = `<MalioAccordionItem title="A" value="a" :default-open="true"><p>contenu</p></MalioAccordionItem>`
+
+  it('clips the panel (overflow-hidden) while collapsed', () => {
+    const wrapper = mountAccordion({}, ONE)
+    const inner = wrapper.find('[role="region"] > div')
+    expect(inner.classes()).toContain('overflow-hidden')
+    expect(inner.classes()).not.toContain('overflow-visible')
+  })
+
+  it('lets the panel overflow once open at mount (defaultOpen)', async () => {
+    const wrapper = mountAccordion({}, ONE_OPEN)
+    await nextTick()
+    expect(wrapper.find('[role="region"] > div').classes()).toContain('overflow-visible')
+  })
+
+  it('switches to overflow-visible after the open transition ends', async () => {
+    const wrapper = mountAccordion({}, ONE)
+    await wrapper.find('button[aria-expanded]').trigger('click')
+    await wrapper.find('[role="region"]').trigger('transitionend', {propertyName: 'grid-template-rows'})
+    expect(wrapper.find('[role="region"] > div').classes()).toContain('overflow-visible')
+  })
+
+  it('re-clips (overflow-hidden) as soon as it closes', async () => {
+    const wrapper = mountAccordion({}, ONE_OPEN)
+    await nextTick()
+    await wrapper.find('button[aria-expanded]').trigger('click')
+    expect(wrapper.find('[role="region"] > div').classes()).toContain('overflow-hidden')
+  })
+})
@@ -0,0 +1,109 @@
+<template>
+  <div v-bind="$attrs" :class="rootClass">
+    <slot />
+  </div>
+</template>
+
+<script setup lang="ts">
+import {computed, provide, ref, useId} from 'vue'
+import {twMerge} from 'tailwind-merge'
+import {accordionContextKey, type AccordionItemRegistration} from './context'
+
+defineOptions({name: 'MalioAccordion', inheritAttrs: false})
+
+const props = withDefaults(defineProps<{
+  mode?: 'single' | 'multiple'
+  modelValue?: string | string[]
+  id?: string
+  groupClass?: string
+}>(), {
+  mode: 'multiple',
+  modelValue: undefined,
+  id: '',
+  groupClass: '',
+})
+
+const emit = defineEmits<{
+  (e: 'update:modelValue', value: string | string[]): void
+}>()
+
+const generatedId = useId()
+const baseId = computed(() => props.id || `malio-accordion-${generatedId}`)
+const mode = computed(() => props.mode)
+
+const isControlled = computed(() => props.modelValue !== undefined)
+const localOpen = ref<string[]>([])
+
+const items = ref<AccordionItemRegistration[]>([])
+
+const openKeys = computed<string[]>(() => {
+  if (isControlled.value) {
+    const v = props.modelValue
+    if (props.mode === 'single') return v ? [v as string] : []
+    if (Array.isArray(v)) return v
+    return v ? [v as string] : []
+  }
+  return localOpen.value
+})
+
+function isOpen(value: string) {
+  return openKeys.value.includes(value)
+}
+
+function toggle(value: string) {
+  const current = openKeys.value
+  let next: string[]
+  if (props.mode === 'single') {
+    next = current.includes(value) ? [] : [value]
+  } else {
+    next = current.includes(value)
+      ? current.filter(v => v !== value)
+      : [...current, value]
+  }
+  if (!isControlled.value) {
+    localOpen.value = next
+  }
+  emit('update:modelValue', props.mode === 'single' ? (next[0] ?? '') : next)
+}
+
+function register(item: AccordionItemRegistration, defaultOpen: boolean) {
+  items.value.push(item)
+  if (defaultOpen && !isControlled.value) {
+    if (props.mode === 'single') {
+      if (localOpen.value.length === 0) localOpen.value = [item.value]
+    } else if (!localOpen.value.includes(item.value)) {
+      localOpen.value.push(item.value)
+    }
+  }
+}
+
+function unregister(value: string) {
+  items.value = items.value.filter(i => i.value !== value)
+}
+
+// `items` est ordonné par ordre de montage (= ordre du DOM pour des sections
+// statiques/ajoutées en fin). Si un consommateur réordonne dynamiquement les
+// items, cet ordre peut diverger de l'ordre visuel ; trier par position DOM
+// serait alors nécessaire (hors périmètre v1).
+function focusSibling(value: string, offset: 1 | -1) {
+  const enabled = items.value.filter(i => !i.isDisabled())
+  const idx = enabled.findIndex(i => i.value === value)
+  if (idx === -1) return
+  const next = enabled[(idx + offset + enabled.length) % enabled.length]
+  next?.getHeaderEl()?.focus()
+}
+
+const rootClass = computed(() =>
+  twMerge('divide-y divide-black border-y border-black', props.groupClass),
+)
+
+provide(accordionContextKey, {
+  mode,
+  baseId,
+  isOpen,
+  toggle,
+  register,
+  unregister,
+  focusSibling,
+})
+</script>
@@ -0,0 +1,48 @@
+import {describe, expect, it, vi} from 'vitest'
+import {mount} from '@vue/test-utils'
+import Accordion from './Accordion.vue'
+import AccordionItem from './AccordionItem.vue'
+
+function mountInAccordion(slot: string, accordionProps: Record<string, unknown> = {}) {
+  return mount(Accordion, {
+    props: accordionProps,
+    slots: {default: slot},
+    global: {components: {MalioAccordionItem: AccordionItem}},
+  })
+}
+
+describe('MalioAccordionItem', () => {
+  it('throws when used outside MalioAccordion', () => {
+    const spy = vi.spyOn(console, 'warn').mockImplementation(() => {})
+    expect(() => mount(AccordionItem, {props: {title: 'Solo'}})).toThrow(
+      /à l'intérieur de MalioAccordion/,
+    )
+    spy.mockRestore()
+  })
+
+  it('generates an auto id-based value and still toggles when value prop is omitted', async () => {
+    const wrapper = mountInAccordion(
+      `<MalioAccordionItem title="Sans value"><p>X</p></MalioAccordionItem>`,
+    )
+    const header = wrapper.find('button[aria-expanded]')
+    expect(header.attributes('aria-controls')).toMatch(/-panel-malio-accordion-item-/)
+    await header.trigger('click')
+    expect(header.attributes('aria-expanded')).toBe('true')
+  })
+
+  it('applies headerClass and panelClass overrides via twMerge', () => {
+    const wrapper = mountInAccordion(
+      `<MalioAccordionItem title="T" value="t" header-class="bg-red-500" panel-class="text-lg"><p>X</p></MalioAccordionItem>`,
+    )
+    const header = wrapper.find('button[aria-expanded]')
+    expect(header.classes()).toContain('bg-red-500')
+    expect(wrapper.find('[role="region"]').html()).toContain('text-lg')
+  })
+
+  it('renders a rotating chevron icon', () => {
+    const wrapper = mountInAccordion(
+      `<MalioAccordionItem title="T" value="t"><p>X</p></MalioAccordionItem>`,
+    )
+    expect(wrapper.find('button[aria-expanded] svg').exists()).toBe(true)
+  })
+})
@@ -0,0 +1,126 @@
+<template>
+  <div>
+    <h3 class="m-0">
+      <button
+        :id="headerId"
+        ref="headerRef"
+        type="button"
+        :class="headerClasses"
+        :aria-expanded="open"
+        :aria-controls="panelId"
+        :disabled="disabled"
+        :aria-disabled="disabled || undefined"
+        @click="onToggle"
+        @keydown.down.prevent="ctx.focusSibling(value, 1)"
+        @keydown.up.prevent="ctx.focusSibling(value, -1)"
+      >
+        <span>{{ title }}</span>
+        <IconifyIcon
+          icon="mdi:chevron-down"
+          :width="24"
+          class="shrink-0 transition-transform duration-200"
+          :class="open ? 'rotate-180' : ''"
+        />
+      </button>
+    </h3>
+    <div
+      :id="panelId"
+      role="region"
+      :aria-labelledby="headerId"
+      class="grid transition-[grid-template-rows] duration-200 ease-out"
+      :class="open ? 'grid-rows-[1fr]' : 'grid-rows-[0fr]'"
+      @transitionend="onPanelTransitionEnd"
+    >
+      <div
+        :class="overflowVisible ? 'overflow-visible' : 'overflow-hidden'"
+        :inert="!open || undefined"
+      >
+        <div :class="panelInnerClass">
+          <slot />
+        </div>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import {computed, inject, onBeforeUnmount, onMounted, ref, useId, watch} from 'vue'
+import {Icon as IconifyIcon} from '@iconify/vue'
+import {twMerge} from 'tailwind-merge'
+import {accordionContextKey} from './context'
+
+defineOptions({name: 'MalioAccordionItem', inheritAttrs: false})
+
+const props = withDefaults(defineProps<{
+  title: string
+  value?: string
+  defaultOpen?: boolean
+  disabled?: boolean
+  headerClass?: string
+  panelClass?: string
+}>(), {
+  value: '',
+  defaultOpen: false,
+  disabled: false,
+  headerClass: '',
+  panelClass: '',
+})
+
+const ctx = inject(accordionContextKey)
+if (!ctx) {
+  throw new Error('MalioAccordionItem doit être utilisé à l\'intérieur de MalioAccordion')
+}
+
+const generatedId = useId()
+const value = computed(() => props.value || `malio-accordion-item-${generatedId}`)
+const headerRef = ref<HTMLButtonElement | null>(null)
+const headerId = computed(() => `${ctx.baseId.value}-header-${value.value}`)
+const panelId = computed(() => `${ctx.baseId.value}-panel-${value.value}`)
+const open = computed(() => ctx.isOpen(value.value))
+
+// Le panneau garde `overflow-hidden` pendant l'animation (clipping requis par
+// la transition grid-template-rows), puis passe en `overflow-visible` une fois
+// complètement ouvert pour qu'un popover enfant (datepicker, select…) ne soit
+// pas rogné. On re-clippe dès le début de la fermeture.
+const overflowVisible = ref(false)
+
+watch(open, (isOpen) => {
+  if (!isOpen) overflowVisible.value = false
+})
+
+function onPanelTransitionEnd(e: TransitionEvent) {
+  if (e.propertyName === 'grid-template-rows' && open.value) {
+    overflowVisible.value = true
+  }
+}
+
+function onToggle() {
+  if (props.disabled) return
+  ctx.toggle(value.value)
+}
+
+const headerClasses = computed(() =>
+  twMerge(
+    'flex w-full items-center justify-between gap-4 px-7 pt-[28px] pb-[20px] text-left font-[600] text-[20px] transition-colors',
+    props.disabled ? 'cursor-not-allowed text-m-muted' : 'cursor-pointer hover:bg-m-surface',
+    props.headerClass,
+  ),
+)
+
+const panelInnerClass = computed(() => twMerge('px-7 pt-[10px] pb-[20px]', props.panelClass))
+
+onMounted(() => {
+  ctx.register(
+    {
+      value: value.value,
+      getHeaderEl: () => headerRef.value,
+      isDisabled: () => props.disabled,
+    },
+    props.defaultOpen,
+  )
+  // Ouvert au montage (defaultOpen / contrôlé) : pas d'animation, overflow visible direct.
+  if (open.value) overflowVisible.value = true
+})
+
+onBeforeUnmount(() => ctx.unregister(value.value))
+</script>
@@ -0,0 +1,19 @@
+import type {ComputedRef, InjectionKey} from 'vue'
+
+export interface AccordionItemRegistration {
+  value: string
+  getHeaderEl: () => HTMLElement | null
+  isDisabled: () => boolean
+}
+
+export interface AccordionContext {
+  mode: ComputedRef<'single' | 'multiple'>
+  baseId: ComputedRef<string>
+  isOpen: (value: string) => boolean
+  toggle: (value: string) => void
+  register: (item: AccordionItemRegistration, defaultOpen: boolean) => void
+  unregister: (value: string) => void
+  focusSibling: (value: string, offset: 1 | -1) => void
+}
+
+export const accordionContextKey: InjectionKey<AccordionContext> = Symbol('MalioAccordion')
@@ -0,0 +1,320 @@
+import { afterEach, describe, expect, it } from 'vitest'
+import { enableAutoUnmount, mount } from '@vue/test-utils'
+import type { DefineComponent } from 'vue'
+import { Icon as IconifyIcon } from '@iconify/vue'
+import Modal from './Modal.vue'
+
+type ModalProps = {
+  id?: string
+  modelValue?: boolean
+  showClose?: boolean
+  dismissable?: boolean
+  closeOnEscape?: boolean
+  ariaLabel?: string
+  modalClass?: string
+  overlayClass?: string
+  headerClass?: string
+  bodyClass?: string
+  footerClass?: string
+}
+
+const ModalForTest = Modal as DefineComponent<ModalProps>
+
+function mountComponent(props: ModalProps = {}, slots?: Record<string, string>) {
+  return mount(ModalForTest, {
+    props,
+    slots,
+    global: { stubs: { Teleport: true } },
+  })
+}
+
+describe('MalioModal', () => {
+  enableAutoUnmount(afterEach)
+
+  afterEach(() => {
+    document.body.style.overflow = ''
+  })
+
+  it('does not render when modelValue is false', () => {
+    const wrapper = mountComponent({ modelValue: false })
+    expect(wrapper.find('[data-test="panel"]').exists()).toBe(false)
+  })
+
+  it('renders the panel when modelValue is true', () => {
+    const wrapper = mountComponent({ modelValue: true })
+    expect(wrapper.find('[data-test="panel"]').exists()).toBe(true)
+  })
+
+  it('centers the modal (items-center justify-center)', () => {
+    const wrapper = mountComponent({ modelValue: true })
+    const root = wrapper.find('.fixed')
+    expect(root.classes()).toContain('items-center')
+    expect(root.classes()).toContain('justify-center')
+  })
+
+  it('renders default slot in the body', () => {
+    const wrapper = mountComponent(
+      { modelValue: true },
+      { default: '<p data-test="content">Contenu</p>' },
+    )
+    expect(wrapper.find('[data-test="body"] [data-test="content"]').text()).toBe('Contenu')
+  })
+
+  it('works in uncontrolled mode (defaults closed)', () => {
+    const wrapper = mountComponent()
+    expect(wrapper.find('[data-test="panel"]').exists()).toBe(false)
+  })
+
+  it('uses custom id when provided', () => {
+    const wrapper = mountComponent({ modelValue: true, id: 'my-modal' })
+    expect(wrapper.find('.fixed').attributes('id')).toBe('my-modal')
+  })
+
+  it('generates an id when not provided', () => {
+    const wrapper = mountComponent({ modelValue: true })
+    expect(wrapper.find('.fixed').attributes('id')).toMatch(/^malio-modal-/)
+  })
+
+  it('has role="dialog" and aria-modal on the panel', () => {
+    const wrapper = mountComponent({ modelValue: true })
+    const panel = wrapper.find('[data-test="panel"]')
+    expect(panel.attributes('role')).toBe('dialog')
+    expect(panel.attributes('aria-modal')).toBe('true')
+  })
+
+  it('applies modalClass to the panel', () => {
+    const wrapper = mountComponent({ modelValue: true, modalClass: 'max-w-2xl' })
+    expect(wrapper.find('[data-test="panel"]').classes()).toContain('max-w-2xl')
+  })
+
+  it('renders the #header slot inside the header bar', () => {
+    const wrapper = mountComponent(
+      { modelValue: true },
+      { header: '<h2 data-test="title">Titre</h2>' },
+    )
+    expect(wrapper.find('[data-test="header"] [data-test="title"]').text()).toBe('Titre')
+  })
+
+  it('renders the header bar when showClose is true even without #header', () => {
+    const wrapper = mountComponent({ modelValue: true })
+    expect(wrapper.find('[data-test="header"]').exists()).toBe(true)
+  })
+
+  it('does not render the header bar when no #header and showClose is false', () => {
+    const wrapper = mountComponent({ modelValue: true, showClose: false })
+    expect(wrapper.find('[data-test="header"]').exists()).toBe(false)
+  })
+
+  it('shows the close button by default', () => {
+    const wrapper = mountComponent({ modelValue: true })
+    expect(wrapper.find('[data-test="close-button"]').exists()).toBe(true)
+  })
+
+  it('hides the close button when showClose is false', () => {
+    const wrapper = mountComponent(
+      { modelValue: true, showClose: false },
+      { header: '<h2>Titre</h2>' },
+    )
+    expect(wrapper.find('[data-test="close-button"]').exists()).toBe(false)
+  })
+
+  it('close button renders mdi:cancel-bold icon', () => {
+    const wrapper = mountComponent({ modelValue: true })
+    const icon = wrapper.findComponent(IconifyIcon)
+    expect(icon.props('icon')).toBe('mdi:cancel-bold')
+  })
+
+  it('close button has aria-label "Fermer"', () => {
+    const wrapper = mountComponent({ modelValue: true })
+    expect(wrapper.find('[data-test="close-button"]').attributes('aria-label')).toBe('Fermer')
+  })
+
+  it('emits update:modelValue false and close on close button click', async () => {
+    const wrapper = mountComponent({ modelValue: true })
+    await wrapper.find('[data-test="close-button"]').trigger('click')
+    expect(wrapper.emitted('update:modelValue')?.[0]).toEqual([false])
+    expect(wrapper.emitted('close')).toHaveLength(1)
+  })
+
+  it('sets aria-labelledby to the header id when #header is provided', () => {
+    const wrapper = mountComponent(
+      { modelValue: true, id: 'test-modal' },
+      { header: '<h2>Titre</h2>' },
+    )
+    const panel = wrapper.find('[data-test="panel"]')
+    expect(panel.attributes('aria-labelledby')).toBe('test-modal-header')
+    expect(wrapper.find('[data-test="header-content"]').attributes('id')).toBe('test-modal-header')
+  })
+
+  it('sets aria-label from ariaLabel when no #header is provided', () => {
+    const wrapper = mountComponent({ modelValue: true, ariaLabel: 'Boîte de dialogue' })
+    const panel = wrapper.find('[data-test="panel"]')
+    expect(panel.attributes('aria-label')).toBe('Boîte de dialogue')
+    expect(panel.attributes('aria-labelledby')).toBeUndefined()
+  })
+
+  it('applies headerClass to the header bar', () => {
+    const wrapper = mountComponent({ modelValue: true, headerClass: 'bg-m-primary' })
+    expect(wrapper.find('[data-test="header"]').classes()).toContain('bg-m-primary')
+  })
+
+  it('renders the #footer slot in a footer pinned below the body', () => {
+    const wrapper = mountComponent(
+      { modelValue: true },
+      { footer: '<button data-test="save">Enregistrer</button>' },
+    )
+    expect(wrapper.find('[data-test="body"] [data-test="footer"]').exists()).toBe(false)
+    expect(wrapper.find('[data-test="footer"] [data-test="save"]').exists()).toBe(true)
+  })
+
+  it('does not render the footer when no #footer slot', () => {
+    const wrapper = mountComponent({ modelValue: true })
+    expect(wrapper.find('[data-test="footer"]').exists()).toBe(false)
+  })
+
+  it('applies bodyClass to the body', () => {
+    const wrapper = mountComponent({ modelValue: true, bodyClass: 'px-10' })
+    expect(wrapper.find('[data-test="body"]').classes()).toContain('px-10')
+  })
+
+  it('applies footerClass to the footer', () => {
+    const wrapper = mountComponent(
+      { modelValue: true, footerClass: 'justify-end' },
+      { footer: '<span>pied</span>' },
+    )
+    expect(wrapper.find('[data-test="footer"]').classes()).toContain('justify-end')
+  })
+
+  it('emits update:modelValue false and close on backdrop click (dismissable)', async () => {
+    const wrapper = mountComponent({ modelValue: true })
+    await wrapper.find('[data-test="backdrop"]').trigger('click')
+    expect(wrapper.emitted('update:modelValue')?.[0]).toEqual([false])
+    expect(wrapper.emitted('close')).toHaveLength(1)
+  })
+
+  it('does not close on backdrop click when dismissable is false', async () => {
+    const wrapper = mountComponent({ modelValue: true, dismissable: false })
+    await wrapper.find('[data-test="backdrop"]').trigger('click')
+    expect(wrapper.emitted('update:modelValue')).toBeUndefined()
+  })
+
+  it('applies overlayClass to the backdrop', () => {
+    const wrapper = mountComponent({ modelValue: true, overlayClass: 'bg-black/70' })
+    expect(wrapper.find('[data-test="backdrop"]').classes()).toContain('bg-black/70')
+  })
+
+  it('closes on Escape key when closeOnEscape is true', async () => {
+    const wrapper = mountComponent({ modelValue: true })
+    await wrapper.find('[data-test="panel"]').trigger('keydown', { key: 'Escape' })
+    expect(wrapper.emitted('update:modelValue')?.[0]).toEqual([false])
+    expect(wrapper.emitted('close')).toHaveLength(1)
+  })
+
+  it('does not close on Escape when closeOnEscape is false', async () => {
+    const wrapper = mountComponent({ modelValue: true, closeOnEscape: false })
+    await wrapper.find('[data-test="panel"]').trigger('keydown', { key: 'Escape' })
+    expect(wrapper.emitted('update:modelValue')).toBeUndefined()
+  })
+
+  it('locks body scroll when opened and restores it when closed', async () => {
+    const wrapper = mountComponent({ modelValue: false })
+    expect(document.body.style.overflow).toBe('')
+    await wrapper.setProps({ modelValue: true })
+    expect(document.body.style.overflow).toBe('hidden')
+    await wrapper.setProps({ modelValue: false })
+    expect(document.body.style.overflow).toBe('')
+  })
+
+  it('moves focus into the panel when opened', async () => {
+    const wrapper = mount(ModalForTest, {
+      props: { modelValue: false, showClose: false },
+      slots: { default: '<button data-test="first">OK</button>' },
+      attachTo: document.body,
+      global: { stubs: { Teleport: true } },
+    })
+    await wrapper.setProps({ modelValue: true })
+    await wrapper.vm.$nextTick()
+    const first = wrapper.find('[data-test="first"]').element
+    expect(document.activeElement).toBe(first)
+    wrapper.unmount()
+  })
+
+  it('restores focus to the trigger when closed', async () => {
+    const trigger = document.createElement('button')
+    document.body.appendChild(trigger)
+    trigger.focus()
+    expect(document.activeElement).toBe(trigger)
+
+    const wrapper = mount(ModalForTest, {
+      props: { modelValue: false },
+      slots: { default: '<button>OK</button>' },
+      attachTo: document.body,
+      global: { stubs: { Teleport: true } },
+    })
+    await wrapper.setProps({ modelValue: true })
+    await wrapper.vm.$nextTick()
+    await wrapper.setProps({ modelValue: false })
+    await wrapper.vm.$nextTick()
+    expect(document.activeElement).toBe(trigger)
+
+    wrapper.unmount()
+    trigger.remove()
+  })
+
+  it('wraps focus to the first element when Tab is pressed on the last element', async () => {
+    const wrapper = mount(ModalForTest, {
+      props: { modelValue: true, showClose: false },
+      slots: { default: '<button data-test="btn1">First</button><button data-test="btn2">Last</button>' },
+      attachTo: document.body,
+      global: { stubs: { Teleport: true } },
+    })
+    await wrapper.vm.$nextTick()
+    const last = wrapper.find('[data-test="btn2"]').element as HTMLElement
+    last.focus()
+    expect(document.activeElement).toBe(last)
+    await wrapper.find('[data-test="panel"]').trigger('keydown', { key: 'Tab' })
+    expect(document.activeElement).toBe(wrapper.find('[data-test="btn1"]').element)
+    wrapper.unmount()
+  })
+
+  it('wraps focus to the last element when Shift+Tab is pressed on the first element', async () => {
+    const wrapper = mount(ModalForTest, {
+      props: { modelValue: true, showClose: false },
+      slots: { default: '<button data-test="btn1">First</button><button data-test="btn2">Last</button>' },
+      attachTo: document.body,
+      global: { stubs: { Teleport: true } },
+    })
+    await wrapper.vm.$nextTick()
+    const first = wrapper.find('[data-test="btn1"]').element as HTMLElement
+    first.focus()
+    expect(document.activeElement).toBe(first)
+    await wrapper.find('[data-test="panel"]').trigger('keydown', { key: 'Tab', shiftKey: true })
+    expect(document.activeElement).toBe(wrapper.find('[data-test="btn2"]').element)
+    wrapper.unmount()
+  })
+
+  it('does not release body scroll-lock when one stacked modal closes while another is still open', async () => {
+    const wrapperA = mount(ModalForTest, {
+      props: { modelValue: false },
+      attachTo: document.body,
+      global: { stubs: { Teleport: true } },
+    })
+    const wrapperB = mount(ModalForTest, {
+      props: { modelValue: false },
+      attachTo: document.body,
+      global: { stubs: { Teleport: true } },
+    })
+
+    await wrapperA.setProps({ modelValue: true })
+    expect(document.body.style.overflow).toBe('hidden')
+
+    await wrapperB.setProps({ modelValue: true })
+    expect(document.body.style.overflow).toBe('hidden')
+
+    await wrapperB.setProps({ modelValue: false })
+    expect(document.body.style.overflow).toBe('hidden')
+
+    await wrapperA.setProps({ modelValue: false })
+    expect(document.body.style.overflow).toBe('')
+  })
+})
@@ -0,0 +1,279 @@
+<template>
+  <Teleport to="body">
+    <Transition
+      name="modal"
+      appear
+      @after-leave="isRendered = false"
+    >
+      <div
+        v-if="isRendered && isOpen"
+        :id="componentId"
+        class="fixed inset-0 z-50 flex items-center justify-center p-4"
+        v-bind="attrs"
+      >
+        <div
+          :class="twMerge('absolute inset-0 bg-black/40', overlayClass)"
+          data-test="backdrop"
+          @click="onBackdropClick"
+        />
+
+        <div
+          ref="panelRef"
+          :class="twMerge(
+            'relative z-50 flex max-h-[85vh] w-full max-w-md flex-col rounded-malio bg-white shadow-[0_4px_4px_0_rgba(0,0,0,0.25)]',
+            modalClass,
+          )"
+          role="dialog"
+          aria-modal="true"
+          :aria-labelledby="hasHeader ? headerId : undefined"
+          :aria-label="hasHeader ? undefined : (ariaLabel || undefined)"
+          tabindex="-1"
+          data-test="panel"
+          @keydown="onKeydown"
+        >
+          <div
+            v-if="hasHeader || showClose"
+            :class="twMerge('flex shrink-0 items-center justify-between gap-4 px-5 py-[25px]', headerClass)"
+            data-test="header"
+          >
+            <div
+              :id="headerId"
+              class="min-w-0 flex-1"
+              data-test="header-content"
+            >
+              <slot name="header" />
+            </div>
+            <button
+              v-if="showClose"
+              type="button"
+              aria-label="Fermer"
+              class="flex h-8 w-8 shrink-0 cursor-pointer items-center justify-center rounded-full transition-colors hover:bg-m-surface"
+              data-test="close-button"
+              @click="close"
+            >
+              <IconifyIcon
+                icon="mdi:cancel-bold"
+                :width="16"
+                :height="16"
+              />
+            </button>
+          </div>
+          <div
+            :class="twMerge('flex-1 overflow-y-auto px-5', bodyClass)"
+            data-test="body"
+          >
+            <slot />
+          </div>
+          <div
+            v-if="$slots.footer"
+            :class="twMerge('flex shrink-0 items-center gap-3 px-5 py-4', footerClass)"
+            data-test="footer"
+          >
+            <slot name="footer" />
+          </div>
+        </div>
+      </div>
+    </Transition>
+  </Teleport>
+</template>
+
+<script setup lang="ts">
+import {
+  computed,
+  nextTick,
+  onBeforeUnmount,
+  onMounted,
+  ref,
+  useAttrs,
+  useId,
+  useSlots,
+  watch,
+} from 'vue'
+import { Icon as IconifyIcon } from '@iconify/vue'
+import { twMerge } from 'tailwind-merge'
+
+defineOptions({ name: 'MalioModal', inheritAttrs: false })
+
+const props = withDefaults(
+  defineProps<{
+    id?: string
+    modelValue?: boolean
+    showClose?: boolean
+    dismissable?: boolean
+    closeOnEscape?: boolean
+    ariaLabel?: string
+    modalClass?: string
+    overlayClass?: string
+    headerClass?: string
+    bodyClass?: string
+    footerClass?: string
+  }>(),
+  {
+    id: '',
+    modelValue: undefined,
+    showClose: true,
+    dismissable: true,
+    closeOnEscape: true,
+    ariaLabel: '',
+    modalClass: '',
+    overlayClass: '',
+    headerClass: '',
+    bodyClass: '',
+    footerClass: '',
+  },
+)
+
+const emit = defineEmits<{
+  (e: 'update:modelValue', value: boolean): void
+  (e: 'close'): void
+}>()
+
+const attrs = useAttrs()
+const generatedId = useId()
+
+const componentId = computed(() => props.id || `malio-modal-${generatedId}`)
+
+const slots = useSlots()
+const headerId = computed(() => `${componentId.value}-header`)
+const hasHeader = computed(() => !!slots.header)
+
+const isControlled = computed(() => props.modelValue !== undefined)
+const localValue = ref(false)
+const isOpen = computed(() =>
+  isControlled.value ? props.modelValue! : localValue.value,
+)
+const isRendered = ref(isOpen.value)
+
+const panelRef = ref<HTMLElement | null>(null)
+
+let previouslyFocused: HTMLElement | null = null
+// Per-instance flag: true while this modal holds a scroll-lock count slot.
+let lockedByThisInstance = false
+
+function getFocusable(container: HTMLElement): HTMLElement[] {
+  return Array.from(
+    container.querySelectorAll<HTMLElement>(
+      'a[href], button:not([disabled]), textarea:not([disabled]), input:not([disabled]), select:not([disabled]), [tabindex]:not([tabindex="-1"]), [contenteditable]:not([contenteditable="false"])',
+    ),
+  ).filter((el) => el.tabIndex !== -1)
+}
+
+function onOpen() {
+  previouslyFocused = (document.activeElement as HTMLElement | null) ?? null
+  if (!lockedByThisInstance) {
+    lockedByThisInstance = true
+    openModalCount++
+    if (openModalCount === 1) {
+      document.body.style.overflow = 'hidden'
+    }
+  }
+  nextTick(() => {
+    const panel = panelRef.value
+    if (!panel) return
+    const focusable = getFocusable(panel)
+    ;(focusable[0] ?? panel).focus()
+  })
+}
+
+function onClose() {
+  if (lockedByThisInstance) {
+    lockedByThisInstance = false
+    openModalCount = Math.max(0, openModalCount - 1)
+    if (openModalCount === 0) {
+      document.body.style.overflow = ''
+    }
+  }
+  previouslyFocused?.focus?.()
+  previouslyFocused = null
+}
+
+watch(isOpen, (val) => {
+  if (val) {
+    isRendered.value = true
+    onOpen()
+  }
+  else {
+    onClose()
+  }
+})
+
+onMounted(() => {
+  if (isOpen.value) onOpen()
+})
+
+onBeforeUnmount(() => {
+  // If this instance is still holding a scroll-lock slot, release it.
+  if (lockedByThisInstance) {
+    lockedByThisInstance = false
+    openModalCount = Math.max(0, openModalCount - 1)
+    if (openModalCount === 0) {
+      document.body.style.overflow = ''
+    }
+  }
+})
+
+function onBackdropClick() {
+  if (props.dismissable) close()
+}
+
+function onKeydown(e: KeyboardEvent) {
+  if (e.key === 'Escape' && props.closeOnEscape) {
+    e.stopPropagation()
+    close()
+    return
+  }
+  if (e.key !== 'Tab') return
+
+  const panel = panelRef.value
+  if (!panel) return
+  const focusable = getFocusable(panel)
+  if (focusable.length === 0) {
+    e.preventDefault()
+    panel.focus()
+    return
+  }
+  const first = focusable[0]!
+  const last = focusable[focusable.length - 1]!
+  if (e.shiftKey && document.activeElement === first) {
+    e.preventDefault()
+    last.focus()
+  }
+  else if (!e.shiftKey && document.activeElement === last) {
+    e.preventDefault()
+    first.focus()
+  }
+}
+
+function close() {
+  if (!isControlled.value) localValue.value = false
+  emit('update:modelValue', false)
+  emit('close')
+}
+</script>
+
+<script lang="ts">
+// Shared across all MalioModal instances: only the last open modal releases the body scroll-lock.
+let openModalCount = 0
+</script>
+
+<style scoped>
+.modal-enter-active,
+.modal-leave-active {
+  transition: opacity 0.2s ease;
+}
+
+.modal-enter-active > div:last-child,
+.modal-leave-active > div:last-child {
+  transition: transform 0.2s ease;
+}
+
+.modal-enter-from,
+.modal-leave-to {
+  opacity: 0;
+}
+
+.modal-enter-from > div:last-child,
+.modal-leave-to > div:last-child {
+  transform: scale(0.95);
+}
+</style>
@@ -0,0 +1,125 @@
+<template>
+  <Story title="Disclosure/Accordion">
+    <div class="grid grid-cols-1 gap-6">
+      <div class="rounded-lg border p-4">
+        <h2 class="mb-4 text-xl font-bold">Multiple (filtres) — défaut</h2>
+        <MalioAccordion v-model="multiple">
+          <MalioAccordionItem title="Prix" value="prix">
+            <p>Slider de prix ici…</p>
+          </MalioAccordionItem>
+          <MalioAccordionItem title="Catégorie" value="cat">
+            <p>Liste de checkboxes ici…</p>
+          </MalioAccordionItem>
+          <MalioAccordionItem title="Marque" value="marque">
+            <p>Recherche + liste ici…</p>
+          </MalioAccordionItem>
+        </MalioAccordion>
+      </div>
+
+      <div class="rounded-lg border p-4">
+        <h2 class="mb-4 text-xl font-bold">Single (FAQ)</h2>
+        <MalioAccordion v-model="single" mode="single">
+          <MalioAccordionItem title="Question 1" value="q1">
+            <p>Réponse 1</p>
+          </MalioAccordionItem>
+          <MalioAccordionItem title="Question 2" value="q2">
+            <p>Réponse 2</p>
+          </MalioAccordionItem>
+        </MalioAccordion>
+      </div>
+
+      <div class="rounded-lg border p-4">
+        <h2 class="mb-4 text-xl font-bold">Section désactivée</h2>
+        <MalioAccordion>
+          <MalioAccordionItem title="Active" value="ok">
+            <p>Contenu accessible</p>
+          </MalioAccordionItem>
+          <MalioAccordionItem title="Désactivée" value="ko" :disabled="true">
+            <p>Inaccessible</p>
+          </MalioAccordionItem>
+        </MalioAccordion>
+      </div>
+    </div>
+  </Story>
+</template>
+
+<docs lang="md">
+# MalioAccordion
+
+Accordéon compositionnel : un parent `MalioAccordion` qui enveloppe des
+`MalioAccordionItem`. Conçu pour des systèmes de filtres (plusieurs sections
+dépliées simultanément) comme pour des FAQ (une seule section ouverte).
+
+---
+
+## Props — MalioAccordion
+
+### mode
+- Type: `'single' | 'multiple'`
+- Défaut: `'multiple'`
+- Description: `multiple` autorise plusieurs panneaux ouverts ; `single` ferme les autres à l'ouverture.
+
+### modelValue
+- Type: `string | string[]`
+- Description: clés ouvertes. `string[]` en mode `multiple`, `string` en mode `single`. Sans v-model, état interne (non contrôlé).
+
+### id
+- Type: `string`
+- Description: préfixe des IDs d'accessibilité. Auto-généré si absent.
+
+### groupClass
+- Type: `string`
+- Description: classes du conteneur, fusionnées via `twMerge`.
+
+---
+
+## Props — MalioAccordionItem
+
+### title
+- Type: `string` (requis) — texte de l'en-tête.
+
+### value
+- Type: `string` — clé unique de la section (recommandée pour piloter le v-model). Auto-générée si absente.
+
+### defaultOpen
+- Type: `boolean` — défaut `false`. Ouvre la section au montage (mode non contrôlé uniquement).
+
+### disabled
+- Type: `boolean` — défaut `false`. En-tête non cliquable.
+
+### headerClass / panelClass
+- Type: `string` — override des classes de l'en-tête / du panneau (`twMerge`).
+
+---
+
+## Slots
+
+Slot par défaut de `MalioAccordionItem` = contenu du panneau.
+
+---
+
+## Accessibilité
+
+- En-tête = `<button>` natif, `aria-expanded`, `aria-controls`.
+- Panneau `role="region"` + `aria-labelledby`.
+- Sections désactivées : `disabled` + `aria-disabled`.
+- Navigation clavier ↑/↓ entre les en-têtes.
+
+---
+
+## Events
+
+### update:modelValue
+- Émis à chaque bascule. Retourne `string[]` (mode `multiple`) ou `string` (mode `single`, `''` si tout fermé).
+</docs>
+
+<script setup lang="ts">
+import {ref} from 'vue'
+import MalioAccordion from '../../components/malio/accordion/Accordion.vue'
+import MalioAccordionItem from '../../components/malio/accordion/AccordionItem.vue'
+
+defineOptions({ name: 'AccordionStory' })
+
+const multiple = ref<string[]>(['prix'])
+const single = ref('q1')
+</script>
@@ -0,0 +1,70 @@
+<script setup lang="ts">
+import { ref } from 'vue'
+
+defineOptions({ name: 'ModalStory' })
+
+const showBase = ref(false)
+const showForm = ref(false)
+const showNoDismiss = ref(false)
+</script>
+
+<template>
+  <Story title="Overlay/Modal">
+    <Variant title="Simple">
+      <div class="p-4">
+        <button
+          class="rounded bg-m-btn-primary px-4 py-2 text-white"
+          @click="showBase = true"
+        >
+          Ouvrir
+        </button>
+        <MalioModal v-model="showBase">
+          <template #header>
+            <h2 class="text-xl font-bold">Détails</h2>
+          </template>
+          <p>Contenu simple de la modal.</p>
+        </MalioModal>
+      </div>
+    </Variant>
+
+    <Variant title="Avec footer d'actions">
+      <div class="p-4">
+        <button
+          class="rounded bg-m-btn-primary px-4 py-2 text-white"
+          @click="showForm = true"
+        >
+          Ouvrir le formulaire
+        </button>
+        <MalioModal v-model="showForm" modal-class="max-w-lg">
+          <template #header>
+            <h2 class="text-xl font-bold">Nouveau contact</h2>
+          </template>
+          <div class="flex flex-col gap-4 py-2">
+            <MalioInputText label="Nom" />
+            <MalioInputText label="Prénom" />
+          </div>
+          <template #footer>
+            <MalioButton label="Enregistrer" button-class="flex-1" @click="showForm = false" />
+          </template>
+        </MalioModal>
+      </div>
+    </Variant>
+
+    <Variant title="Non dismissable">
+      <div class="p-4">
+        <button
+          class="rounded bg-m-btn-primary px-4 py-2 text-white"
+          @click="showNoDismiss = true"
+        >
+          Ouvrir
+        </button>
+        <MalioModal v-model="showNoDismiss" :dismissable="false" :close-on-escape="false">
+          <template #header>
+            <h2 class="text-xl font-bold">Action requise</h2>
+          </template>
+          <p>Ni le backdrop ni Échap ne ferment cette modal. Utilisez la croix.</p>
+        </MalioModal>
+      </div>
+    </Variant>
+  </Story>
+</template>
@@ -0,0 +1,979 @@
+# MalioModal Implementation Plan
+
+> **For agentic workers:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development (recommended) or superpowers:executing-plans to implement this plan task-by-task. Steps use checkbox (`- [ ]`) syntax for tracking.
+
+**Goal:** Ajouter un composant `MalioModal` (dialogue modal centré) autonome à `@malio/layer-ui`, sans modifier le Drawer existant.
+
+**Architecture:** Composant Vue SFC unique `app/components/malio/modal/Modal.vue`, auto-importé comme `<MalioModal>`. Réimplémente sa propre logique (Teleport, focus-trap, scroll-lock partagé via compteur module-level, pattern contrôlé/non-contrôlé, transition fade+scale) en s'inspirant du Drawer. Structure : header fixe / body scrollable / footer fixe.
+
+**Tech Stack:** Nuxt 4 layer, Vue 3 `<script setup lang="ts">`, Tailwind (tokens `m-*`), `tailwind-merge`, `@iconify/vue`, Vitest + `@vue/test-utils` (jsdom), Histoire.
+
+**Spec:** `docs/superpowers/specs/2026-05-26-modal-design.md`
+
+**Conventions projet à respecter :**
+- Commits Conventional **avec espace avant les `:`** : `feat : … (#MUI-36)`, `docs : …`, `test : …`. Type en minuscules, pas de préfixe `[#…]`. Finir par la ligne `Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>`.
+- Le hook pre-commit lance lint + ~595 tests et **time out de façon flaky** sous WSL2. Pattern : réessayer ; après 2 échecs flaky (échecs différents d'un run à l'autre), vérifier les tests ciblés à la main (`npx vitest run <chemin>`) puis committer avec `--no-verify`.
+- Story : nom de fichier sous un dossier (`story/modal/modal.story.vue`) ; `defineOptions({ name: 'ModalStory' })` pour éviter `vue/multi-word-component-names`.
+
+**File Structure:**
+- Create `app/components/malio/modal/Modal.vue` — le composant (≈ taille du Drawer).
+- Create `app/components/malio/modal/Modal.test.ts` — tests colocalisés.
+- Create `.playground/pages/composant/modal/modal.vue` — page de démo (route `/composant/modal/modal`).
+- Modify `.playground/playground.nav.ts` — ajout de l'entrée nav dans la section `NAVIGATION`.
+- Create `app/story/modal/modal.story.vue` — story Histoire.
+- Modify `COMPONENTS.md` — section `## MalioModal` (insérée après la section `## MalioDrawer`).
+- Modify `CHANGELOG.md` — ligne sous `### Added`.
+
+---
+
+### Task 1: Composant MalioModal + suite de tests (cycle TDD)
+
+**Files:**
+- Create: `app/components/malio/modal/Modal.test.ts`
+- Create: `app/components/malio/modal/Modal.vue`
+
+- [ ] **Step 1: Écrire la suite de tests qui échoue**
+
+Create `app/components/malio/modal/Modal.test.ts` :
+
+```ts
+import { afterEach, describe, expect, it } from 'vitest'
+import { enableAutoUnmount, mount } from '@vue/test-utils'
+import type { DefineComponent } from 'vue'
+import { Icon as IconifyIcon } from '@iconify/vue'
+import Modal from './Modal.vue'
+
+type ModalProps = {
+  id?: string
+  modelValue?: boolean
+  showClose?: boolean
+  dismissable?: boolean
+  closeOnEscape?: boolean
+  ariaLabel?: string
+  modalClass?: string
+  overlayClass?: string
+  headerClass?: string
+  bodyClass?: string
+  footerClass?: string
+}
+
+const ModalForTest = Modal as DefineComponent<ModalProps>
+
+function mountComponent(props: ModalProps = {}, slots?: Record<string, string>) {
+  return mount(ModalForTest, {
+    props,
+    slots,
+    global: { stubs: { Teleport: true } },
+  })
+}
+
+describe('MalioModal', () => {
+  enableAutoUnmount(afterEach)
+
+  afterEach(() => {
+    document.body.style.overflow = ''
+  })
+
+  it('does not render when modelValue is false', () => {
+    const wrapper = mountComponent({ modelValue: false })
+    expect(wrapper.find('[data-test="panel"]').exists()).toBe(false)
+  })
+
+  it('renders the panel when modelValue is true', () => {
+    const wrapper = mountComponent({ modelValue: true })
+    expect(wrapper.find('[data-test="panel"]').exists()).toBe(true)
+  })
+
+  it('centers the modal (items-center justify-center)', () => {
+    const wrapper = mountComponent({ modelValue: true })
+    const root = wrapper.find('.fixed')
+    expect(root.classes()).toContain('items-center')
+    expect(root.classes()).toContain('justify-center')
+  })
+
+  it('renders default slot in the body', () => {
+    const wrapper = mountComponent(
+      { modelValue: true },
+      { default: '<p data-test="content">Contenu</p>' },
+    )
+    expect(wrapper.find('[data-test="body"] [data-test="content"]').text()).toBe('Contenu')
+  })
+
+  it('works in uncontrolled mode (defaults closed)', () => {
+    const wrapper = mountComponent()
+    expect(wrapper.find('[data-test="panel"]').exists()).toBe(false)
+  })
+
+  it('uses custom id when provided', () => {
+    const wrapper = mountComponent({ modelValue: true, id: 'my-modal' })
+    expect(wrapper.find('.fixed').attributes('id')).toBe('my-modal')
+  })
+
+  it('generates an id when not provided', () => {
+    const wrapper = mountComponent({ modelValue: true })
+    expect(wrapper.find('.fixed').attributes('id')).toMatch(/^malio-modal-/)
+  })
+
+  it('has role="dialog" and aria-modal on the panel', () => {
+    const wrapper = mountComponent({ modelValue: true })
+    const panel = wrapper.find('[data-test="panel"]')
+    expect(panel.attributes('role')).toBe('dialog')
+    expect(panel.attributes('aria-modal')).toBe('true')
+  })
+
+  it('applies modalClass to the panel', () => {
+    const wrapper = mountComponent({ modelValue: true, modalClass: 'max-w-2xl' })
+    expect(wrapper.find('[data-test="panel"]').classes()).toContain('max-w-2xl')
+  })
+
+  it('renders the #header slot inside the header bar', () => {
+    const wrapper = mountComponent(
+      { modelValue: true },
+      { header: '<h2 data-test="title">Titre</h2>' },
+    )
+    expect(wrapper.find('[data-test="header"] [data-test="title"]').text()).toBe('Titre')
+  })
+
+  it('renders the header bar when showClose is true even without #header', () => {
+    const wrapper = mountComponent({ modelValue: true })
+    expect(wrapper.find('[data-test="header"]').exists()).toBe(true)
+  })
+
+  it('does not render the header bar when no #header and showClose is false', () => {
+    const wrapper = mountComponent({ modelValue: true, showClose: false })
+    expect(wrapper.find('[data-test="header"]').exists()).toBe(false)
+  })
+
+  it('shows the close button by default', () => {
+    const wrapper = mountComponent({ modelValue: true })
+    expect(wrapper.find('[data-test="close-button"]').exists()).toBe(true)
+  })
+
+  it('hides the close button when showClose is false', () => {
+    const wrapper = mountComponent(
+      { modelValue: true, showClose: false },
+      { header: '<h2>Titre</h2>' },
+    )
+    expect(wrapper.find('[data-test="close-button"]').exists()).toBe(false)
+  })
+
+  it('close button renders mdi:cancel-bold icon', () => {
+    const wrapper = mountComponent({ modelValue: true })
+    const icon = wrapper.findComponent(IconifyIcon)
+    expect(icon.props('icon')).toBe('mdi:cancel-bold')
+  })
+
+  it('close button has aria-label "Fermer"', () => {
+    const wrapper = mountComponent({ modelValue: true })
+    expect(wrapper.find('[data-test="close-button"]').attributes('aria-label')).toBe('Fermer')
+  })
+
+  it('emits update:modelValue false and close on close button click', async () => {
+    const wrapper = mountComponent({ modelValue: true })
+    await wrapper.find('[data-test="close-button"]').trigger('click')
+    expect(wrapper.emitted('update:modelValue')?.[0]).toEqual([false])
+    expect(wrapper.emitted('close')).toHaveLength(1)
+  })
+
+  it('sets aria-labelledby to the header id when #header is provided', () => {
+    const wrapper = mountComponent(
+      { modelValue: true, id: 'test-modal' },
+      { header: '<h2>Titre</h2>' },
+    )
+    const panel = wrapper.find('[data-test="panel"]')
+    expect(panel.attributes('aria-labelledby')).toBe('test-modal-header')
+    expect(wrapper.find('[data-test="header-content"]').attributes('id')).toBe('test-modal-header')
+  })
+
+  it('sets aria-label from ariaLabel when no #header is provided', () => {
+    const wrapper = mountComponent({ modelValue: true, ariaLabel: 'Boîte de dialogue' })
+    const panel = wrapper.find('[data-test="panel"]')
+    expect(panel.attributes('aria-label')).toBe('Boîte de dialogue')
+    expect(panel.attributes('aria-labelledby')).toBeUndefined()
+  })
+
+  it('applies headerClass to the header bar', () => {
+    const wrapper = mountComponent({ modelValue: true, headerClass: 'bg-m-primary' })
+    expect(wrapper.find('[data-test="header"]').classes()).toContain('bg-m-primary')
+  })
+
+  it('renders the #footer slot in a footer pinned below the body', () => {
+    const wrapper = mountComponent(
+      { modelValue: true },
+      { footer: '<button data-test="save">Enregistrer</button>' },
+    )
+    // le footer n'est PAS dans la zone scrollable (≠ Drawer)
+    expect(wrapper.find('[data-test="body"] [data-test="footer"]').exists()).toBe(false)
+    expect(wrapper.find('[data-test="footer"] [data-test="save"]').exists()).toBe(true)
+  })
+
+  it('does not render the footer when no #footer slot', () => {
+    const wrapper = mountComponent({ modelValue: true })
+    expect(wrapper.find('[data-test="footer"]').exists()).toBe(false)
+  })
+
+  it('applies bodyClass to the body', () => {
+    const wrapper = mountComponent({ modelValue: true, bodyClass: 'px-10' })
+    expect(wrapper.find('[data-test="body"]').classes()).toContain('px-10')
+  })
+
+  it('applies footerClass to the footer', () => {
+    const wrapper = mountComponent(
+      { modelValue: true, footerClass: 'justify-end' },
+      { footer: '<span>pied</span>' },
+    )
+    expect(wrapper.find('[data-test="footer"]').classes()).toContain('justify-end')
+  })
+
+  it('emits update:modelValue false and close on backdrop click (dismissable)', async () => {
+    const wrapper = mountComponent({ modelValue: true })
+    await wrapper.find('[data-test="backdrop"]').trigger('click')
+    expect(wrapper.emitted('update:modelValue')?.[0]).toEqual([false])
+    expect(wrapper.emitted('close')).toHaveLength(1)
+  })
+
+  it('does not close on backdrop click when dismissable is false', async () => {
+    const wrapper = mountComponent({ modelValue: true, dismissable: false })
+    await wrapper.find('[data-test="backdrop"]').trigger('click')
+    expect(wrapper.emitted('update:modelValue')).toBeUndefined()
+  })
+
+  it('applies overlayClass to the backdrop', () => {
+    const wrapper = mountComponent({ modelValue: true, overlayClass: 'bg-black/70' })
+    expect(wrapper.find('[data-test="backdrop"]').classes()).toContain('bg-black/70')
+  })
+
+  it('closes on Escape key when closeOnEscape is true', async () => {
+    const wrapper = mountComponent({ modelValue: true })
+    await wrapper.find('[data-test="panel"]').trigger('keydown', { key: 'Escape' })
+    expect(wrapper.emitted('update:modelValue')?.[0]).toEqual([false])
+    expect(wrapper.emitted('close')).toHaveLength(1)
+  })
+
+  it('does not close on Escape when closeOnEscape is false', async () => {
+    const wrapper = mountComponent({ modelValue: true, closeOnEscape: false })
+    await wrapper.find('[data-test="panel"]').trigger('keydown', { key: 'Escape' })
+    expect(wrapper.emitted('update:modelValue')).toBeUndefined()
+  })
+
+  it('locks body scroll when opened and restores it when closed', async () => {
+    const wrapper = mountComponent({ modelValue: false })
+    expect(document.body.style.overflow).toBe('')
+    await wrapper.setProps({ modelValue: true })
+    expect(document.body.style.overflow).toBe('hidden')
+    await wrapper.setProps({ modelValue: false })
+    expect(document.body.style.overflow).toBe('')
+  })
+
+  it('moves focus into the panel when opened', async () => {
+    const wrapper = mount(ModalForTest, {
+      props: { modelValue: false, showClose: false },
+      slots: { default: '<button data-test="first">OK</button>' },
+      attachTo: document.body,
+      global: { stubs: { Teleport: true } },
+    })
+    await wrapper.setProps({ modelValue: true })
+    await wrapper.vm.$nextTick()
+    const first = wrapper.find('[data-test="first"]').element
+    expect(document.activeElement).toBe(first)
+    wrapper.unmount()
+  })
+
+  it('restores focus to the trigger when closed', async () => {
+    const trigger = document.createElement('button')
+    document.body.appendChild(trigger)
+    trigger.focus()
+    expect(document.activeElement).toBe(trigger)
+
+    const wrapper = mount(ModalForTest, {
+      props: { modelValue: false },
+      slots: { default: '<button>OK</button>' },
+      attachTo: document.body,
+      global: { stubs: { Teleport: true } },
+    })
+    await wrapper.setProps({ modelValue: true })
+    await wrapper.vm.$nextTick()
+    await wrapper.setProps({ modelValue: false })
+    await wrapper.vm.$nextTick()
+    expect(document.activeElement).toBe(trigger)
+
+    wrapper.unmount()
+    trigger.remove()
+  })
+
+  it('wraps focus to the first element when Tab is pressed on the last element', async () => {
+    const wrapper = mount(ModalForTest, {
+      props: { modelValue: true, showClose: false },
+      slots: { default: '<button data-test="btn1">First</button><button data-test="btn2">Last</button>' },
+      attachTo: document.body,
+      global: { stubs: { Teleport: true } },
+    })
+    await wrapper.vm.$nextTick()
+    const last = wrapper.find('[data-test="btn2"]').element as HTMLElement
+    last.focus()
+    expect(document.activeElement).toBe(last)
+    await wrapper.find('[data-test="panel"]').trigger('keydown', { key: 'Tab' })
+    expect(document.activeElement).toBe(wrapper.find('[data-test="btn1"]').element)
+    wrapper.unmount()
+  })
+
+  it('wraps focus to the last element when Shift+Tab is pressed on the first element', async () => {
+    const wrapper = mount(ModalForTest, {
+      props: { modelValue: true, showClose: false },
+      slots: { default: '<button data-test="btn1">First</button><button data-test="btn2">Last</button>' },
+      attachTo: document.body,
+      global: { stubs: { Teleport: true } },
+    })
+    await wrapper.vm.$nextTick()
+    const first = wrapper.find('[data-test="btn1"]').element as HTMLElement
+    first.focus()
+    expect(document.activeElement).toBe(first)
+    await wrapper.find('[data-test="panel"]').trigger('keydown', { key: 'Tab', shiftKey: true })
+    expect(document.activeElement).toBe(wrapper.find('[data-test="btn2"]').element)
+    wrapper.unmount()
+  })
+
+  it('does not release body scroll-lock when one stacked modal closes while another is still open', async () => {
+    const wrapperA = mount(ModalForTest, {
+      props: { modelValue: false },
+      attachTo: document.body,
+      global: { stubs: { Teleport: true } },
+    })
+    const wrapperB = mount(ModalForTest, {
+      props: { modelValue: false },
+      attachTo: document.body,
+      global: { stubs: { Teleport: true } },
+    })
+
+    await wrapperA.setProps({ modelValue: true })
+    expect(document.body.style.overflow).toBe('hidden')
+
+    await wrapperB.setProps({ modelValue: true })
+    expect(document.body.style.overflow).toBe('hidden')
+
+    await wrapperB.setProps({ modelValue: false })
+    expect(document.body.style.overflow).toBe('hidden')
+
+    await wrapperA.setProps({ modelValue: false })
+    expect(document.body.style.overflow).toBe('')
+  })
+})
+```
+
+- [ ] **Step 2: Lancer les tests pour vérifier qu'ils échouent**
+
+Run: `npx vitest run app/components/malio/modal/Modal.test.ts`
+Expected: FAIL — `Failed to resolve import "./Modal.vue"` (le composant n'existe pas encore).
+
+- [ ] **Step 3: Implémenter le composant**
+
+Create `app/components/malio/modal/Modal.vue` :
+
+```vue
+<template>
+  <Teleport to="body">
+    <Transition
+      name="modal"
+      appear
+      @after-leave="isRendered = false"
+    >
+      <div
+        v-if="isRendered && isOpen"
+        :id="componentId"
+        class="fixed inset-0 z-50 flex items-center justify-center p-4"
+        v-bind="attrs"
+      >
+        <div
+          :class="twMerge('absolute inset-0 bg-black/40', overlayClass)"
+          data-test="backdrop"
+          @click="onBackdropClick"
+        />
+
+        <div
+          ref="panelRef"
+          :class="twMerge(
+            'relative z-50 flex max-h-[85vh] w-full max-w-md flex-col rounded-malio bg-white',
+            modalClass,
+          )"
+          role="dialog"
+          aria-modal="true"
+          :aria-labelledby="hasHeader ? headerId : undefined"
+          :aria-label="hasHeader ? undefined : (ariaLabel || undefined)"
+          tabindex="-1"
+          data-test="panel"
+          @keydown="onKeydown"
+        >
+          <div
+            v-if="hasHeader || showClose"
+            :class="twMerge('flex shrink-0 items-center justify-between gap-4 px-5 py-[25px]', headerClass)"
+            data-test="header"
+          >
+            <div
+              :id="headerId"
+              class="min-w-0 flex-1"
+              data-test="header-content"
+            >
+              <slot name="header" />
+            </div>
+            <button
+              v-if="showClose"
+              type="button"
+              aria-label="Fermer"
+              class="flex h-8 w-8 shrink-0 cursor-pointer items-center justify-center rounded-full transition-colors hover:bg-m-surface"
+              data-test="close-button"
+              @click="close"
+            >
+              <IconifyIcon
+                icon="mdi:cancel-bold"
+                :width="16"
+                :height="16"
+              />
+            </button>
+          </div>
+          <div
+            :class="twMerge('flex-1 overflow-y-auto px-5', bodyClass)"
+            data-test="body"
+          >
+            <slot />
+          </div>
+          <div
+            v-if="$slots.footer"
+            :class="twMerge('flex shrink-0 items-center gap-3 border-t border-m-border px-5 py-4', footerClass)"
+            data-test="footer"
+          >
+            <slot name="footer" />
+          </div>
+        </div>
+      </div>
+    </Transition>
+  </Teleport>
+</template>
+
+<script setup lang="ts">
+import {
+  computed,
+  nextTick,
+  onBeforeUnmount,
+  onMounted,
+  ref,
+  useAttrs,
+  useId,
+  useSlots,
+  watch,
+} from 'vue'
+import { Icon as IconifyIcon } from '@iconify/vue'
+import { twMerge } from 'tailwind-merge'
+
+defineOptions({ name: 'MalioModal', inheritAttrs: false })
+
+const props = withDefaults(
+  defineProps<{
+    id?: string
+    modelValue?: boolean
+    showClose?: boolean
+    dismissable?: boolean
+    closeOnEscape?: boolean
+    ariaLabel?: string
+    modalClass?: string
+    overlayClass?: string
+    headerClass?: string
+    bodyClass?: string
+    footerClass?: string
+  }>(),
+  {
+    id: '',
+    modelValue: undefined,
+    showClose: true,
+    dismissable: true,
+    closeOnEscape: true,
+    ariaLabel: '',
+    modalClass: '',
+    overlayClass: '',
+    headerClass: '',
+    bodyClass: '',
+    footerClass: '',
+  },
+)
+
+const emit = defineEmits<{
+  (e: 'update:modelValue', value: boolean): void
+  (e: 'close'): void
+}>()
+
+const attrs = useAttrs()
+const generatedId = useId()
+
+const componentId = computed(() => props.id || `malio-modal-${generatedId}`)
+
+const slots = useSlots()
+const headerId = computed(() => `${componentId.value}-header`)
+const hasHeader = computed(() => !!slots.header)
+
+const isControlled = computed(() => props.modelValue !== undefined)
+const localValue = ref(false)
+const isOpen = computed(() =>
+  isControlled.value ? props.modelValue! : localValue.value,
+)
+const isRendered = ref(isOpen.value)
+
+const panelRef = ref<HTMLElement | null>(null)
+
+let previouslyFocused: HTMLElement | null = null
+// Per-instance flag: true while this modal holds a scroll-lock count slot.
+let lockedByThisInstance = false
+
+function getFocusable(container: HTMLElement): HTMLElement[] {
+  return Array.from(
+    container.querySelectorAll<HTMLElement>(
+      'a[href], button:not([disabled]), textarea:not([disabled]), input:not([disabled]), select:not([disabled]), [tabindex]:not([tabindex="-1"]), [contenteditable]:not([contenteditable="false"])',
+    ),
+  ).filter((el) => el.tabIndex !== -1)
+}
+
+function onOpen() {
+  previouslyFocused = (document.activeElement as HTMLElement | null) ?? null
+  if (!lockedByThisInstance) {
+    lockedByThisInstance = true
+    openModalCount++
+    if (openModalCount === 1) {
+      document.body.style.overflow = 'hidden'
+    }
+  }
+  nextTick(() => {
+    const panel = panelRef.value
+    if (!panel) return
+    const focusable = getFocusable(panel)
+    ;(focusable[0] ?? panel).focus()
+  })
+}
+
+function onClose() {
+  if (lockedByThisInstance) {
+    lockedByThisInstance = false
+    openModalCount = Math.max(0, openModalCount - 1)
+    if (openModalCount === 0) {
+      document.body.style.overflow = ''
+    }
+  }
+  previouslyFocused?.focus?.()
+  previouslyFocused = null
+}
+
+watch(isOpen, (val) => {
+  if (val) {
+    isRendered.value = true
+    onOpen()
+  }
+  else {
+    onClose()
+  }
+})
+
+onMounted(() => {
+  if (isOpen.value) onOpen()
+})
+
+onBeforeUnmount(() => {
+  // If this instance is still holding a scroll-lock slot, release it.
+  if (lockedByThisInstance) {
+    lockedByThisInstance = false
+    openModalCount = Math.max(0, openModalCount - 1)
+    if (openModalCount === 0) {
+      document.body.style.overflow = ''
+    }
+  }
+})
+
+function onBackdropClick() {
+  if (props.dismissable) close()
+}
+
+function onKeydown(e: KeyboardEvent) {
+  if (e.key === 'Escape' && props.closeOnEscape) {
+    e.stopPropagation()
+    close()
+    return
+  }
+  if (e.key !== 'Tab') return
+
+  const panel = panelRef.value
+  if (!panel) return
+  const focusable = getFocusable(panel)
+  if (focusable.length === 0) {
+    e.preventDefault()
+    panel.focus()
+    return
+  }
+  const first = focusable[0]!
+  const last = focusable[focusable.length - 1]!
+  if (e.shiftKey && document.activeElement === first) {
+    e.preventDefault()
+    last.focus()
+  }
+  else if (!e.shiftKey && document.activeElement === last) {
+    e.preventDefault()
+    first.focus()
+  }
+}
+
+function close() {
+  if (!isControlled.value) localValue.value = false
+  emit('update:modelValue', false)
+  emit('close')
+}
+</script>
+
+<script lang="ts">
+// Shared across all MalioModal instances: only the last open modal releases the body scroll-lock.
+let openModalCount = 0
+</script>
+
+<style scoped>
+.modal-enter-active,
+.modal-leave-active {
+  transition: opacity 0.2s ease;
+}
+
+.modal-enter-active > div:last-child,
+.modal-leave-active > div:last-child {
+  transition: transform 0.2s ease, opacity 0.2s ease;
+}
+
+.modal-enter-from,
+.modal-leave-to {
+  opacity: 0;
+}
+
+.modal-enter-from > div:last-child,
+.modal-leave-to > div:last-child {
+  transform: scale(0.95);
+  opacity: 0;
+}
+</style>
+```
+
+- [ ] **Step 4: Lancer les tests pour vérifier qu'ils passent**
+
+Run: `npx vitest run app/components/malio/modal/Modal.test.ts`
+Expected: PASS — tous les tests (≈ 32) verts.
+
+- [ ] **Step 5: Lint**
+
+Run: `npm run lint`
+Expected: 0 erreur sur les fichiers du composant.
+
+- [ ] **Step 6: Commit**
+
+```bash
+git add app/components/malio/modal/Modal.vue app/components/malio/modal/Modal.test.ts
+git commit -m "feat : composant Modal (#MUI-36)
+
+Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>"
+```
+(En cas de timeout flaky pre-commit, voir le pattern conventions en tête de plan : retry ×2 puis `--no-verify` après vérif ciblée `npx vitest run app/components/malio/modal/Modal.test.ts`.)
+
+---
+
+### Task 2: Page playground + entrée nav
+
+**Files:**
+- Create: `.playground/pages/composant/modal/modal.vue`
+- Modify: `.playground/playground.nav.ts` (section `NAVIGATION`, après le Drawer)
+
+- [ ] **Step 1: Créer la page de démo**
+
+Create `.playground/pages/composant/modal/modal.vue` :
+
+```vue
+<script setup lang="ts">
+import { ref } from 'vue'
+
+const modalBase = ref(false)
+const modalForm = ref(false)
+const modalLong = ref(false)
+const modalNoDismiss = ref(false)
+</script>
+
+<template>
+  <div class="grid grid-cols-1 items-start gap-6 md:grid-cols-2">
+    <div class="rounded-lg border p-6">
+      <h2 class="mb-6 text-xl font-bold">Modal simple</h2>
+      <MalioButton label="Ouvrir" @click="modalBase = true" />
+      <MalioModal v-model="modalBase">
+        <template #header>
+          <h2 class="text-[24px] font-bold text-black">Détails</h2>
+        </template>
+        <p class="text-m-text">Contenu de la modal. Échap, clic backdrop et croix la ferment.</p>
+      </MalioModal>
+    </div>
+
+    <div class="rounded-lg border p-6">
+      <h2 class="mb-6 text-xl font-bold">Avec footer d'actions</h2>
+      <MalioButton label="Ouvrir le formulaire" variant="tertiary" @click="modalForm = true" />
+      <MalioModal v-model="modalForm" modal-class="max-w-lg">
+        <template #header>
+          <h2 class="text-[24px] font-bold text-black">Nouveau contact</h2>
+        </template>
+        <div class="flex flex-col gap-4 py-2">
+          <MalioInputText label="Nom" />
+          <MalioInputText label="Prénom" />
+          <MalioInputText label="Email" />
+        </div>
+        <template #footer>
+          <MalioButton label="Annuler" variant="secondary" button-class="flex-1" @click="modalForm = false" />
+          <MalioButton label="Enregistrer" button-class="flex-1" @click="modalForm = false" />
+        </template>
+      </MalioModal>
+    </div>
+
+    <div class="rounded-lg border p-6">
+      <h2 class="mb-6 text-xl font-bold">Contenu long (body scrollable)</h2>
+      <MalioButton label="Ouvrir" variant="tertiary" @click="modalLong = true" />
+      <MalioModal v-model="modalLong">
+        <template #header>
+          <h2 class="text-[24px] font-bold text-black">Conditions</h2>
+        </template>
+        <div class="flex flex-col gap-4">
+          <p v-for="n in 20" :key="n" class="text-m-text">
+            Paragraphe {{ n }} — contenu long pour forcer le scroll interne ; le header et le footer restent fixes.
+          </p>
+        </div>
+        <template #footer>
+          <MalioButton label="Accepter" button-class="w-full" @click="modalLong = false" />
+        </template>
+      </MalioModal>
+    </div>
+
+    <div class="rounded-lg border p-6">
+      <h2 class="mb-6 text-xl font-bold">Non dismissable (croix uniquement)</h2>
+      <MalioButton label="Ouvrir" variant="danger" @click="modalNoDismiss = true" />
+      <MalioModal v-model="modalNoDismiss" :dismissable="false" :close-on-escape="false">
+        <template #header>
+          <h2 class="text-[24px] font-bold text-black">Action requise</h2>
+        </template>
+        <p class="text-m-text">Ni le backdrop ni Échap ne ferment cette modal. Utilisez la croix.</p>
+      </MalioModal>
+    </div>
+  </div>
+</template>
+```
+
+- [ ] **Step 2: Ajouter l'entrée nav**
+
+Modify `.playground/playground.nav.ts`, dans la section `NAVIGATION`, ajouter la ligne Modal juste après le Drawer :
+
+```ts
+  {
+    label: 'NAVIGATION',
+    icon: 'mdi:navigation-variant',
+    items: [
+      {label: 'Sidebar', to: '/composant/sidebar/sidebar'},
+      {label: 'Drawer', to: '/composant/drawer/drawer'},
+      {label: 'Modal', to: '/composant/modal/modal'},
+      {label: 'Onglets', to: '/composant/tab/tabList'},
+    ],
+  },
+```
+
+- [ ] **Step 3: Vérifier le lint**
+
+Run: `npm run lint`
+Expected: 0 erreur.
+
+- [ ] **Step 4: Commit**
+
+```bash
+git add .playground/pages/composant/modal/modal.vue .playground/playground.nav.ts
+git commit -m "docs : page playground Modal (#MUI-36)
+
+Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>"
+```
+
+---
+
+### Task 3: Story Histoire
+
+**Files:**
+- Create: `app/story/modal/modal.story.vue`
+
+- [ ] **Step 1: Créer la story**
+
+Create `app/story/modal/modal.story.vue` :
+
+```vue
+<script setup lang="ts">
+import { ref } from 'vue'
+
+defineOptions({ name: 'ModalStory' })
+
+const showBase = ref(false)
+const showForm = ref(false)
+const showNoDismiss = ref(false)
+</script>
+
+<template>
+  <Story title="Overlay/Modal">
+    <Variant title="Simple">
+      <div class="p-4">
+        <button
+          class="rounded bg-m-btn-primary px-4 py-2 text-white"
+          @click="showBase = true"
+        >
+          Ouvrir
+        </button>
+        <MalioModal v-model="showBase">
+          <template #header>
+            <h2 class="text-xl font-bold">Détails</h2>
+          </template>
+          <p>Contenu simple de la modal.</p>
+        </MalioModal>
+      </div>
+    </Variant>
+
+    <Variant title="Avec footer d'actions">
+      <div class="p-4">
+        <button
+          class="rounded bg-m-btn-primary px-4 py-2 text-white"
+          @click="showForm = true"
+        >
+          Ouvrir le formulaire
+        </button>
+        <MalioModal v-model="showForm" modal-class="max-w-lg">
+          <template #header>
+            <h2 class="text-xl font-bold">Nouveau contact</h2>
+          </template>
+          <div class="flex flex-col gap-4 py-2">
+            <MalioInputText label="Nom" />
+            <MalioInputText label="Prénom" />
+          </div>
+          <template #footer>
+            <MalioButton label="Enregistrer" button-class="flex-1" @click="showForm = false" />
+          </template>
+        </MalioModal>
+      </div>
+    </Variant>
+
+    <Variant title="Non dismissable">
+      <div class="p-4">
+        <button
+          class="rounded bg-m-btn-primary px-4 py-2 text-white"
+          @click="showNoDismiss = true"
+        >
+          Ouvrir
+        </button>
+        <MalioModal v-model="showNoDismiss" :dismissable="false" :close-on-escape="false">
+          <template #header>
+            <h2 class="text-xl font-bold">Action requise</h2>
+          </template>
+          <p>Ni le backdrop ni Échap ne ferment cette modal. Utilisez la croix.</p>
+        </MalioModal>
+      </div>
+    </Variant>
+  </Story>
+</template>
+```
+
+- [ ] **Step 2: Vérifier le lint**
+
+Run: `npm run lint`
+Expected: 0 erreur (notamment pas de `vue/multi-word-component-names` grâce au `defineOptions`).
+
+- [ ] **Step 3: Commit**
+
+```bash
+git add app/story/modal/modal.story.vue
+git commit -m "docs : story Histoire Modal (#MUI-36)
+
+Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>"
+```
+
+---
+
+### Task 4: Documentation (COMPONENTS.md + CHANGELOG.md)
+
+**Files:**
+- Modify: `COMPONENTS.md` (insérer après la section `## MalioDrawer`, juste avant `## MalioDataTable`)
+- Modify: `CHANGELOG.md` (ligne sous `### Added`)
+
+- [ ] **Step 1: Ajouter la section dans COMPONENTS.md**
+
+Dans `COMPONENTS.md`, insérer ce bloc juste après le `---` qui clôt la section `## MalioDrawer` (et avant `## MalioDataTable`) :
+
+```markdown
+## MalioModal
+
+Boîte de dialogue modale centrée avec backdrop semi-transparent. Gère l'accessibilité (focus-trap, restitution du focus, `Échap`), le verrouillage du scroll de la page et un empilement correct de plusieurs modals. Structure : header fixe, body scrollable (`max-h-[85vh]`), footer fixe.
+
+| Prop | Type | Défaut | Description |
+|------|------|--------|-------------|
+| `id` | `string` | auto | Identifiant HTML |
+| `modelValue` | `boolean` | `undefined` | État ouvert/fermé (v-model) |
+| `showClose` | `boolean` | `true` | Afficher le bouton de fermeture (croix) |
+| `dismissable` | `boolean` | `true` | Fermer au clic sur le backdrop |
+| `closeOnEscape` | `boolean` | `true` | Fermer avec la touche `Échap` |
+| `ariaLabel` | `string` | `''` | Nom accessible de secours quand le slot `#header` est absent |
+| `modalClass` | `string` | `''` | Classes CSS panneau, ex. largeur `max-w-lg` (twMerge) |
+| `overlayClass` | `string` | `''` | Classes CSS backdrop (twMerge) |
+| `headerClass` | `string` | `''` | Classes CSS barre header (twMerge) |
+| `bodyClass` | `string` | `''` | Classes CSS zone scrollable (twMerge) |
+| `footerClass` | `string` | `''` | Classes CSS footer fixe (twMerge) |
+
+**Events :** `update:modelValue(value: boolean)`, `close()`
+
+**Slots :**
+- `header` — en-tête (titre, etc.). S'il est absent et que `showClose` est `true`, seule la croix est affichée.
+- `default` — contenu (zone scrollable).
+- `footer` — actions (boutons). Rendu en bas, fixe, séparé par une bordure. N'apparaît que si le slot est fourni.
+
+```vue
+<MalioModal v-model="isOpen">
+  <template #header>
+    <h2 class="text-[24px] font-bold">Détails</h2>
+  </template>
+  <p>Contenu de la modal</p>
+</MalioModal>
+
+<!-- Largeur custom + footer d'actions -->
+<MalioModal v-model="isOpen" modal-class="max-w-lg">
+  <template #header><h2>Nouveau contact</h2></template>
+  <MalioInputText label="Nom" />
+  <template #footer>
+    <MalioButton label="Annuler" variant="secondary" button-class="flex-1" @click="isOpen = false" />
+    <MalioButton label="Enregistrer" button-class="flex-1" @click="isOpen = false" />
+  </template>
+</MalioModal>
+
+<!-- Non fermable au backdrop / Échap (croix uniquement) -->
+<MalioModal v-model="isOpen" :dismissable="false" :close-on-escape="false">
+  <template #header><h2>Action requise</h2></template>
+  <p>Fermeture via la croix uniquement</p>
+</MalioModal>
+```
+
+---
+```
+
+- [ ] **Step 2: Ajouter l'entrée CHANGELOG**
+
+Dans `CHANGELOG.md`, sous `### Added`, ajouter en dernière ligne de la liste (après la ligne DateTime) :
+
+```markdown
+* [#MUI-36] Création d'un composant modal (dialogue centré, focus-trap, scroll-lock, footer fixe)
+```
+
+- [ ] **Step 3: Commit**
+
+```bash
+git add COMPONENTS.md CHANGELOG.md
+git commit -m "docs : documentation du composant Modal (#MUI-36)
+
+Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>"
+```
+
+---
+
+## Vérification finale
+
+- [ ] `npx vitest run app/components/malio/modal/Modal.test.ts` → tous verts.
+- [ ] `npm run lint` → 0 erreur.
+- [ ] `npm run dev` → la page `/composant/modal/modal` s'affiche, l'entrée « Modal » est dans la nav sous NAVIGATION, les 4 démos fonctionnent (ouverture, fermeture backdrop/Échap/croix, scroll interne, non-dismissable).
@@ -0,0 +1,167 @@
+# Spec — Composant Accordéon `<MalioAccordion>`
+
+**Date :** 2026-05-26
+**Ticket :** MUI-37
+**Statut :** Validé (design), prêt pour planification
+
+## Contexte & objectif
+
+Ajouter un composant accordéon à `@malio/layer-ui`. Cas d'usage principal :
+un **système de filtres dans un drawer** d'ERP, où plusieurs sections de
+critères (prix, catégorie, marque…) doivent pouvoir être dépliées
+simultanément, chaque section ayant un contenu hétérogène (checkboxes,
+slider, recherche…).
+
+## Décision d'API : composants enfants (compositional)
+
+Plutôt que l'API « tableau `items` + slots » de NuxtUI (qui impose un template
+`#content` unique avec un switch central sur l'item courant), on adopte une
+**API compositionnelle** : un parent `<MalioAccordion>` qui enveloppe des
+enfants `<MalioAccordionItem>`. Chaque section déclare son titre **et** son
+contenu au même endroit, sans switch central, et s'ajoute/se retire
+indépendamment.
+
+Rationale : pour des filtres au contenu hétérogène, c'est nettement plus
+lisible et évolutif. On reste **100 % natif** (pas de dépendance Reka UI,
+contrairement à NuxtUI), cohérent avec le `TabList` maison et les conventions
+du layer (`@iconify/vue`, `twMerge`, props `*Class`).
+
+## Architecture
+
+```
+MalioAccordion        (parent : état d'ouverture, mode, coordination)
+└─ MalioAccordionItem  (enfant : en-tête cliquable + panneau animé + slot)
+```
+
+Le parent **fournit** (`provide`) un contexte d'accordéon ; chaque enfant
+**l'injecte** (`inject`) pour connaître son état d'ouverture et déclencher les
+bascules. Communication via une clé `Symbol` (`InjectionKey`).
+
+**Contexte fourni** (forme indicative) :
+
+```ts
+interface AccordionContext {
+  mode: ComputedRef<'single' | 'multiple'>
+  isOpen: (value: string) => boolean
+  toggle: (value: string) => void
+  register: (value: string, defaultOpen: boolean) => void  // enfant → parent au montage
+  unregister: (value: string) => void
+  baseId: string                                           // pour générer les ids ARIA
+  registerHeader / focus nav helpers                       // pour la navigation flèches
+}
+```
+
+**Fichiers :**
+
+```
+app/components/malio/accordion/Accordion.vue
+app/components/malio/accordion/AccordionItem.vue
+app/components/malio/accordion/Accordion.test.ts
+app/components/malio/accordion/AccordionItem.test.ts
+```
+
+(+ page playground et story Histoire, cf. skill `creating-malio-component`.)
+
+## API publique
+
+### `<MalioAccordion>`
+
+`defineOptions({ name: 'MalioAccordion', inheritAttrs: false })`
+
+| Prop | Type | Défaut | Rôle |
+|------|------|--------|------|
+| `mode` | `'single' \| 'multiple'` | `'multiple'` | Un seul ou plusieurs panneaux ouverts |
+| `modelValue` | `string \| string[]` | `undefined` | v-model des clés ouvertes (`string` en `single`, `string[]` en `multiple`) |
+| `id` | `string` | auto (`useId`) | Base d'id pour les attributs ARIA |
+| `groupClass` | `string` | `''` | Classes du conteneur (fusion `twMerge`) |
+
+**Events :** `update:modelValue(value: string | string[])`
+
+**Pattern contrôlé / non-contrôlé** (convention maison) :
+`isControlled = computed(() => props.modelValue !== undefined)`, avec
+`localValue` en fallback. En non-contrôlé, l'état initial est dérivé des
+enfants ayant `defaultOpen`.
+
+### `<MalioAccordionItem>`
+
+`defineOptions({ name: 'MalioAccordionItem', inheritAttrs: false })`
+
+| Prop | Type | Défaut | Rôle |
+|------|------|--------|------|
+| `title` | `string` | — | Texte de l'en-tête |
+| `value` | `string` | auto (`useId`) | Clé unique (recommandée pour piloter le v-model) |
+| `defaultOpen` | `boolean` | `false` | Ouvert au montage (mode non-contrôlé) |
+| `disabled` | `boolean` | `false` | En-tête non cliquable |
+| `headerClass` | `string` | `''` | Override classes de l'en-tête (`twMerge`) |
+| `panelClass` | `string` | `''` | Override classes du panneau (`twMerge`) |
+
+**Slot par défaut** = contenu du panneau.
+
+## Comportement : mode `single` vs `multiple`
+
+- **`multiple`** (défaut) : `modelValue` est un `string[]`. Basculer une
+  section ajoute/retire sa clé du tableau, sans affecter les autres.
+- **`single`** : `modelValue` est un `string` (clé ouverte, ou `''`/`undefined`
+  si tout fermé). Ouvrir une section ferme la précédente.
+
+L'en-tête minimal : **titre + chevron animé** uniquement. Pas de badge, pas
+d'icône leading, pas de slot d'en-tête custom dans cette version (extensible
+plus tard si besoin métier).
+
+## Animation & rendu
+
+- **Ouverture/fermeture** : transition de hauteur via
+  `grid-template-rows: 0fr → 1fr` sur un wrapper en `overflow: hidden`
+  (gère la hauteur dynamique du contenu sans mesure JS).
+- **Chevron** : `mdi:chevron-down` via `@iconify/vue`, rotation 180° en
+  transition synchronisée avec l'ouverture.
+- **Tokens Malio** : séparateurs `border-m-border`, titre `text-m-text`,
+  `rounded-malio` au besoin. Tout surchargeable via `headerClass` / `panelClass`
+  fusionnés avec `twMerge()`.
+
+## Accessibilité (WAI-ARIA Accordion Pattern)
+
+- En-tête = vrai `<button type="button">` → focusable nativement,
+  Entrée/Espace pour basculer.
+- `aria-expanded` sur le bouton, `aria-controls` → id du panneau.
+- Panneau : `role="region"` + `aria-labelledby` → id du bouton.
+- Sections désactivées : `disabled` + `aria-disabled` sur le bouton.
+- **Navigation clavier ↑/↓** entre les en-têtes (déplacement du focus d'un
+  en-tête à l'autre), conformément au pattern WAI-ARIA. `Home`/`End`
+  optionnels (nice-to-have).
+
+## Tests (Vitest + @vue/test-utils, jsdom)
+
+Helper `mountComponent(props)` colocalisé. Couverture cible :
+
+**Accordion.test.ts**
+- Rendu des enfants (slots).
+- Mode `multiple` : plusieurs sections ouvertes simultanément.
+- Mode `single` : ouvrir une section ferme la précédente.
+- v-model contrôlé : `modelValue` pilote l'état ; émission de `update:modelValue`.
+- Non-contrôlé : `defaultOpen` sur enfants → état initial correct.
+
+**AccordionItem.test.ts**
+- Toggle au clic sur l'en-tête.
+- `disabled` : clic sans effet, attributs `disabled` / `aria-disabled`.
+- Attributs ARIA : `aria-expanded`, `aria-controls`, `role="region"`,
+  `aria-labelledby` correctement liés.
+- Navigation clavier ↑/↓ entre en-têtes.
+- Override de classes via `headerClass` / `panelClass`.
+
+## Livrables documentaires (convention maison)
+
+- Mise à jour de `COMPONENTS.md` (tableau de props + exemples).
+- Mise à jour de `CHANGELOG.md`.
+- Page playground (ajout à `playground.nav.ts`).
+- Story Histoire (`app/story/accordion/`).
+
+## Hors périmètre (YAGNI, V1)
+
+- Badge / compteur de filtres actifs dans l'en-tête.
+- Icône leading.
+- Slot d'en-tête personnalisé.
+- Persistance d'état (localStorage, URL).
+
+Ces éléments pourront être ajoutés ultérieurement si un besoin métier concret
+émerge, sans casser l'API.
@@ -0,0 +1,109 @@
+# Design — `MalioModal`
+
+Date : 2026-05-26
+Statut : validé
+
+## Objectif
+
+Ajouter un composant `MalioModal` à `@malio/layer-ui` : un dialogue modal centré sur fond
+assombri. Périmètre initial = **shell générique seul** (pas de variante confirmation/alerte).
+Le consommateur place ce qu'il veut dans les slots.
+
+## Décisions clés
+
+- **Composant autonome** : la Modal réimplémente sa propre logique en s'inspirant du Drawer,
+  **sans modifier le Drawer existant** (zéro risque de régression). Un éventuel refactor vers
+  un composable partagé Drawer/Modal pourra se faire plus tard.
+- **Largeur unique + override** : une largeur par défaut (`max-w-md`), ajustable par le
+  consommateur via la prop `modalClass` (pas de prop `size`).
+- **Footer fixe en bas** : header fixe en haut, body scrollable au milieu (`max-h-[85vh]`),
+  footer fixe en bas séparé par une bordure — structure modale classique (≠ Drawer où le footer
+  est dans la zone scrollable).
+- **Front volontairement simple** pour cette première version.
+
+## Emplacement & livrables
+
+- `app/components/malio/modal/Modal.vue`
+- `app/components/malio/modal/Modal.test.ts` (colocalisé, jsdom)
+- Page playground `.playground/pages/composant/modal/modal.vue`
+- Entrée nav : `{label: 'Modal', to: '/composant/modal/modal'}` ajoutée dans la section
+  **NAVIGATION** de `.playground/playground.nav.ts`, juste après le Drawer
+- Story Histoire `app/story/modal.story.vue`
+- Mise à jour `COMPONENTS.md` (API) et `CHANGELOG.md` (`### Added`)
+
+## Structure (template)
+
+```
+Teleport to body
+ └ Transition (fade overlay + fade/scale du panneau)
+    └ div fixed inset-0 z-50 flex items-center justify-center p-4   ← centre la modal
+       ├ div backdrop (bg-black/40, @click → si dismissable)
+       └ div panel (role=dialog, aria-modal, w-full max-w-md max-h-[85vh], flex flex-col)
+          ├ header (slot #header + bouton fermer)   ← shrink-0, rendu si slot OU showClose
+          ├ body   (slot par défaut)                ← flex-1 overflow-y-auto
+          └ footer (slot #footer, bordure haute)    ← shrink-0, rendu si slot #footer présent
+```
+
+## API
+
+### Props
+
+| Prop | Type | Défaut | Rôle |
+|------|------|--------|------|
+| `id` | `string` | `''` | id du composant (sinon généré via `useId`) |
+| `modelValue` | `boolean` | `undefined` | ouverture (contrôlé) ; fallback `localValue` interne si non fourni |
+| `showClose` | `boolean` | `true` | affiche le bouton de fermeture (croix) dans le header |
+| `dismissable` | `boolean` | `true` | clic sur le backdrop ferme la modal |
+| `closeOnEscape` | `boolean` | `true` | touche Échap ferme la modal |
+| `ariaLabel` | `string` | `''` | label ARIA si pas de slot header |
+| `modalClass` | `string` | `''` | override du panneau (ex. largeur `max-w-lg`) |
+| `overlayClass` | `string` | `''` | override du backdrop |
+| `headerClass` | `string` | `''` | override du header |
+| `bodyClass` | `string` | `''` | override du body |
+| `footerClass` | `string` | `''` | override du footer |
+
+Mêmes props que le Drawer, **sans `side`** ; `drawerClass` → `modalClass`.
+
+### Events
+
+- `update:modelValue(value: boolean)` — pour le `v-model`
+- `close()` — émis à chaque fermeture (croix, backdrop, Échap, fermeture programmatique)
+
+### Slots
+
+- `#header` — contenu du header (titre…). Si absent **et** `showClose=false`, header non rendu.
+- *(défaut)* — corps de la modal (zone scrollable)
+- `#footer` — pied (boutons d'action). Rendu uniquement si le slot est fourni.
+
+## Comportements repris du Drawer
+
+- **Teleport** vers `<body>`.
+- **Focus-trap** : focus initial sur le 1er élément focusable (sinon le panneau) ; boucle
+  Tab / Shift+Tab ; restauration du focus précédent à la fermeture.
+- **Scroll-lock partagé** : compteur module-level (`openModalCount`) — `overflow:hidden` sur
+  `<body>` tant qu'au moins une instance est ouverte, libéré par la dernière (gère aussi
+  `onBeforeUnmount`).
+- **Pattern contrôlé / non-contrôlé** : `isControlled = computed(() => modelValue !== undefined)`
+  avec `localValue` en fallback ; `isRendered` pour démonter après la transition de sortie.
+- **`defineOptions({ name: 'MalioModal', inheritAttrs: false })`** + `v-bind="attrs"` sur le
+  conteneur.
+- **Transition** : fade de l'overlay + fade léger **et scale** (`scale-95 → scale-100`) du
+  panneau (remplace le translate latéral du Drawer).
+
+## Accessibilité
+
+`role="dialog"`, `aria-modal="true"`, `aria-labelledby` vers l'id du header si présent (sinon
+`aria-label`), bouton fermer avec `aria-label="Fermer"`.
+
+## Tests (Vitest + @vue/test-utils, jsdom, colocalisés)
+
+- Rendu conditionnel (fermé → non rendu ; ouvert → panneau + backdrop).
+- `v-model` / contrôlé vs non-contrôlé.
+- Fermeture : croix, backdrop (selon `dismissable`), Échap (selon `closeOnEscape`) ; events
+  `update:modelValue(false)` + `close`.
+- Slots header / défaut / footer (footer rendu seulement si fourni ; header rendu si slot OU
+  `showClose`).
+- Accessibilité : `role`, `aria-modal`, `aria-labelledby`/`aria-label`.
+- Focus-trap : focus initial, boucle Tab/Shift+Tab.
+- Scroll-lock : `overflow:hidden` à l'ouverture, libéré à la fermeture (et avec instances
+  multiples).