diff --git a/app/app.vue b/app/app.vue
index cea50e7..fad060e 100644
--- a/app/app.vue
+++ b/app/app.vue
@@ -29,7 +29,7 @@ useSeoMeta({
   ogSiteName: 'Le Librodrome',
   ogType: 'website',
   ogLocale: 'fr_FR',
-  ogImage: `${siteUrl}/og-default.png`,
+  ogImage: `${siteUrl}/og-default.png?v=2`,
   ogImageWidth: 1200,
   ogImageHeight: 630,
   twitterCard: 'summary_large_image',
@@ -51,7 +51,7 @@ useHead({
             url: siteUrl,
             logo: {
               '@type': 'ImageObject',
-              url: `${siteUrl}/images/og-default.png`,
+              url: `${siteUrl}/og-default.png?v=2`,
             },
             description: 'Plateforme d\'autonomie numérique, économique et citoyenne à l\'échelle des bassins de vie.',
           },
diff --git a/app/composables/useSeoPage.ts b/app/composables/useSeoPage.ts
index cc008af..3ceb3a8 100644
--- a/app/composables/useSeoPage.ts
+++ b/app/composables/useSeoPage.ts
@@ -21,7 +21,7 @@ export function useSeoPage(opts: {
   const title = opts.title || 'Le Librodrome'
   const description = opts.description
     || 'Autonomie numérique, économique et citoyenne. Un livre et des chansons sur l\'économie du don.'
-  const rawImage = opts.image || '/og-default.png'
+  const rawImage = opts.image || '/og-default.png?v=2'
   const image = rawImage.startsWith('http') ? rawImage : `${siteUrl}${rawImage}`
   const canonical = `${siteUrl}${route.path}`
   const type = opts.type || 'website'
diff --git a/public/favicon.ico b/public/favicon.ico
index 18993ad..432c271 100644
Binary files a/public/favicon.ico and b/public/favicon.ico differ
diff --git a/public/images/Librodrome-Logo.png b/public/images/Librodrome-Logo.png
deleted file mode 100644
index 6126a3b..0000000
Binary files a/public/images/Librodrome-Logo.png and /dev/null differ
diff --git a/public/images/librodrome-logo.svg b/public/images/librodrome-logo.svg
deleted file mode 100644
index 0221591..0000000
--- a/public/images/librodrome-logo.svg
+++ /dev/null
@@ -1,25 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 80" fill="none" role="img" aria-label="Librodrome">
-  <!--
-    Logotype calligraphique Librodrome — § (section sign) brush-stroke.
-    Vectorisé depuis le PNG source (analyse pixel, 200×200 px).
-    Tracé S calligraphique : crochet haut-droit → arc gauche → arc droit → fin centre.
-    3 couches opacité : effet pinceau naturaliste.
-    currentColor → s'adapte automatiquement aux 4 palettes.
-  -->
-
-  <!-- Halo — diffusion pinceau -->
-  <path
-    d="M 28 6 C 44 2,52 12,47 14 C 40 18,16 18,12 28 C 8 38,16 50,28 54 C 38 56,52 60,52 68 C 52 76,42 78,34 74"
-    stroke="currentColor" stroke-width="16" stroke-linecap="round" stroke-linejoin="round" opacity="0.12"
-  />
-  <!-- Corps — épaisseur principale -->
-  <path
-    d="M 28 6 C 44 2,52 12,47 14 C 40 18,16 18,12 28 C 8 38,16 50,28 54 C 38 56,52 60,52 68 C 52 76,42 78,34 74"
-    stroke="currentColor" stroke-width="9" stroke-linecap="round" stroke-linejoin="round" opacity="0.38"
-  />
-  <!-- Trait vif — ligne calligraphique -->
-  <path
-    d="M 28 6 C 44 2,52 12,47 14 C 40 18,16 18,12 28 C 8 38,16 50,28 54 C 38 56,52 60,52 68 C 52 76,42 78,34 74"
-    stroke="currentColor" stroke-width="5" stroke-linecap="round" stroke-linejoin="round" opacity="0.92"
-  />
-</svg>
diff --git a/public/images/logo-section.svg b/public/images/logo-section.svg
deleted file mode 100644
index 70e0c5e..0000000
--- a/public/images/logo-section.svg
+++ /dev/null
@@ -1,53 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 80" fill="none">
-  <!-- Calligraphic § (section sign) - elegant, flowing strokes -->
-  <path
-    d="M38 8
-       C28 6 18 10 18 20
-       C18 28 26 32 34 34
-       C42 36 48 40 48 48
-       C48 52 46 55 42 57
-       L44 40
-       C44 36 40 32 34 30
-       C28 28 22 24 22 18
-       C22 14 24 11 28 10
-       Z"
-    fill="currentColor" opacity="0.85"
-  />
-  <path
-    d="M26 72
-       C36 74 46 70 46 60
-       C46 52 38 48 30 46
-       C22 44 16 40 16 32
-       C16 28 18 25 22 23
-       L20 40
-       C20 44 24 48 30 50
-       C36 52 42 56 42 62
-       C42 66 40 69 36 70
-       Z"
-    fill="currentColor" opacity="0.85"
-  />
-  <!-- Upper curve -->
-  <path
-    d="M20 16
-       C20 8 28 4 36 6
-       C42 8 46 14 44 20"
-    stroke="currentColor" stroke-width="2.5" stroke-linecap="round" fill="none" opacity="0.7"
-  />
-  <!-- Lower curve -->
-  <path
-    d="M44 64
-       C44 72 36 76 28 74
-       C22 72 18 66 20 60"
-    stroke="currentColor" stroke-width="2.5" stroke-linecap="round" fill="none" opacity="0.7"
-  />
-  <!-- Calligraphic flourish - top -->
-  <path
-    d="M36 4 Q42 2 46 6"
-    stroke="currentColor" stroke-width="1.5" stroke-linecap="round" fill="none" opacity="0.5"
-  />
-  <!-- Calligraphic flourish - bottom -->
-  <path
-    d="M28 76 Q22 78 18 74"
-    stroke="currentColor" stroke-width="1.5" stroke-linecap="round" fill="none" opacity="0.5"
-  />
-</svg>
diff --git a/public/og-default.png b/public/og-default.png
index 8b980b7..6c8d5d8 100644
Binary files a/public/og-default.png and b/public/og-default.png differ