diff --git a/app/components/layout/AppHeader.vue b/app/components/layout/AppHeader.vue
new file mode 100644
index 0000000..67ed6fe
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+++ b/app/components/layout/AppHeader.vue
@@ -0,0 +1,149 @@
+<script setup lang="ts">
+const { t, locale } = useI18n()
+const localePath = useLocalePath()
+const setLocale = useSetLocale()
+const colorMode = useColorMode()
+const route = useRoute()
+const drawerOpen = ref(false)
+
+const navLinks = computed(() => [
+  { key: 'home', path: '/' },
+  { key: 'projects', path: '/projects' },
+  { key: 'about', path: '/about' },
+  { key: 'contact', path: '/contact' },
+  { key: 'fiverr', path: '/fiverr' },
+  { key: 'formation', path: '/formation' },
+])
+
+function toggleLocale() {
+  setLocale(locale.value === 'fr' ? 'en' : 'fr')
+}
+
+function toggleTheme() {
+  colorMode.preference = colorMode.value === 'dark' ? 'light' : 'dark'
+}
+
+function isActive(path: string): boolean {
+  return route.path === localePath(path)
+}
+</script>
+
+<template>
+  <header class="sticky top-0 z-[1020] bg-white dark:bg-gray-900 border-b border-gray-200 dark:border-gray-800">
+    <div class="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8 h-16 flex items-center justify-between">
+      <!-- Logo -->
+      <NuxtLink :to="localePath('/')" :aria-label="t('a11y.logoLabel')" class="flex items-center gap-2 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-primary focus-visible:ring-offset-2 rounded">
+        <NuxtImg src="/images/logo.webp" alt="Killian Dalcin" width="40" height="40" loading="eager" class="rounded" />
+        <span class="text-lg font-semibold text-gray-900 dark:text-white">Killian</span>
+      </NuxtLink>
+
+      <!-- Desktop nav -->
+      <nav class="hidden md:flex items-center gap-6" aria-label="Main navigation">
+        <NuxtLink
+          v-for="link in navLinks"
+          :key="link.key"
+          :to="localePath(link.path)"
+          :aria-current="isActive(link.path) ? 'page' : undefined"
+          class="text-base transition-colors focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-primary focus-visible:ring-offset-2 rounded px-1 py-2"
+          :class="[
+            isActive(link.path)
+              ? 'border-b-2 border-primary-500 text-gray-900 dark:text-white'
+              : 'text-gray-700 dark:text-gray-300 hover:text-primary-500'
+          ]"
+        >
+          {{ t(`nav.${link.key}`) }}
+        </NuxtLink>
+      </nav>
+
+      <!-- Toggles -->
+      <div class="flex items-center gap-1">
+        <!-- Language toggle -->
+        <button
+          type="button"
+          :aria-label="t('a11y.langToggle')"
+          class="min-w-11 min-h-11 inline-flex items-center justify-center text-gray-700 dark:text-gray-300 font-medium hover:text-primary-500 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-primary focus-visible:ring-offset-2 rounded transition-colors"
+          @click="toggleLocale"
+        >
+          {{ locale === 'fr' ? 'EN' : 'FR' }}
+        </button>
+
+        <!-- Theme toggle -->
+        <button
+          type="button"
+          :aria-label="colorMode.value === 'dark' ? t('a11y.themeDark') : t('a11y.themeLight')"
+          class="min-w-11 min-h-11 inline-flex items-center justify-center text-gray-600 dark:text-gray-400 hover:text-primary-500 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-primary focus-visible:ring-offset-2 rounded transition-colors duration-300"
+          @click="toggleTheme"
+        >
+          <UIcon :name="colorMode.value === 'dark' ? 'heroicons:sun' : 'heroicons:moon'" class="w-5 h-5" />
+        </button>
+
+        <!-- Hamburger (mobile) -->
+        <button
+          type="button"
+          :aria-label="t('a11y.openMenu')"
+          class="md:hidden min-w-11 min-h-11 inline-flex items-center justify-center text-gray-700 dark:text-gray-300 hover:text-primary-500 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-primary focus-visible:ring-offset-2 rounded transition-colors"
+          @click="drawerOpen = true"
+        >
+          <UIcon name="heroicons:bars-3" class="w-6 h-6" />
+        </button>
+      </div>
+    </div>
+
+    <!-- Mobile Drawer -->
+    <UDrawer v-model:open="drawerOpen" side="left">
+      <div class="p-6 flex flex-col h-full">
+        <!-- Close button -->
+        <div class="flex justify-end mb-4">
+          <button
+            type="button"
+            :aria-label="t('a11y.closeDrawer')"
+            class="min-w-11 min-h-11 inline-flex items-center justify-center text-gray-700 dark:text-gray-300 hover:text-primary-500 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-primary focus-visible:ring-offset-2 rounded transition-colors"
+            @click="drawerOpen = false"
+          >
+            <UIcon name="heroicons:x-mark" class="w-6 h-6" />
+          </button>
+        </div>
+
+        <!-- Nav links -->
+        <nav class="flex flex-col gap-2 flex-1" aria-label="Mobile navigation">
+          <NuxtLink
+            v-for="link in navLinks"
+            :key="link.key"
+            :to="localePath(link.path)"
+            :aria-current="isActive(link.path) ? 'page' : undefined"
+            class="min-h-11 flex items-center px-4 py-3 text-base rounded transition-colors focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-primary focus-visible:ring-offset-2"
+            :class="[
+              isActive(link.path)
+                ? 'text-primary-500 font-medium bg-primary-50 dark:bg-primary-900/20'
+                : 'text-gray-700 dark:text-gray-300 hover:text-primary-500 hover:bg-gray-50 dark:hover:bg-gray-800'
+            ]"
+            @click="drawerOpen = false"
+          >
+            {{ t(`nav.${link.key}`) }}
+          </NuxtLink>
+        </nav>
+
+        <!-- Toggles at bottom -->
+        <div class="flex items-center gap-2 pt-4 border-t border-gray-200 dark:border-gray-700">
+          <button
+            type="button"
+            :aria-label="t('a11y.langToggle')"
+            class="min-w-11 min-h-11 inline-flex items-center justify-center text-gray-700 dark:text-gray-300 font-medium hover:text-primary-500 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-primary focus-visible:ring-offset-2 rounded transition-colors"
+            @click="toggleLocale"
+          >
+            {{ locale === 'fr' ? 'EN' : 'FR' }}
+          </button>
+
+          <button
+            type="button"
+            :aria-label="colorMode.value === 'dark' ? t('a11y.themeDark') : t('a11y.themeLight')"
+            class="min-w-11 min-h-11 inline-flex items-center justify-center text-gray-600 dark:text-gray-400 hover:text-primary-500 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-primary focus-visible:ring-offset-2 rounded transition-colors duration-300"
+            @click="toggleTheme"
+          >
+            <UIcon :name="colorMode.value === 'dark' ? 'heroicons:sun' : 'heroicons:moon'" class="w-5 h-5" />
+          </button>
+        </div>
+      </div>
+    </UDrawer>
+  </header>
+</template>