diff --git a/core/templates/account/login.html b/core/templates/account/login.html
index 8c6d100..c740cc8 100644
--- a/core/templates/account/login.html
+++ b/core/templates/account/login.html
@@ -13,7 +13,7 @@
     <div class="relative w-full max-w-md">
         <div class="bg-surface-container-lowest border border-outline-variant/40 rounded-2xl shadow-card p-8 lg:p-10 text-center">
             <div class="w-20 h-20 mx-auto mb-6 rounded-2xl bg-primary/10 grid place-items-center">
-                <img src="{% static 'img/logo.png' %}" alt="OpenToAll" class="w-12 h-12 object-contain">
+                <img src="{% static 'img/logo.png' %}" alt="" class="w-12 h-12 object-contain">
             </div>
             <h1 class="font-display font-semibold text-3xl text-on-surface tracking-tight">Connecte-toi pour laisser une trace</h1>
             <p class="mt-3 text-on-surface-variant leading-relaxed">GitHub suffit. Ensuite tu peux apparaître au classement et lier tes contributions à ton profil.</p>
diff --git a/core/templates/core/_footer.html b/core/templates/core/_footer.html
index ce1c6b9..6d155b6 100644
--- a/core/templates/core/_footer.html
+++ b/core/templates/core/_footer.html
@@ -3,7 +3,7 @@
     <div class="max-w-content mx-auto px-4 lg:px-8 py-12 grid gap-10 md:grid-cols-[1.5fr_1fr_1fr]">
         <div>
             <a href="{% url 'home' %}" class="flex items-center gap-2.5 mb-4">
-                <img src="{% static 'img/logo.png' %}" alt="OpenToAll" class="w-9 h-9 object-contain">
+                <img src="{% static 'img/logo.png' %}" alt="" class="w-9 h-9 object-contain">
                 <span class="font-display font-bold text-xl">Open<span class="text-primary">ToAll</span></span>
             </a>
             <p class="text-sm text-on-surface-variant max-w-sm leading-relaxed">
diff --git a/core/templates/core/_nav.html b/core/templates/core/_nav.html
index 31968c4..4a120df 100644
--- a/core/templates/core/_nav.html
+++ b/core/templates/core/_nav.html
@@ -9,7 +9,7 @@
                 <span class="material-symbols-outlined text-on-surface">menu</span>
             </button>
             <a href="{{ home_url }}" class="flex items-center gap-2.5 group">
-                <img src="{% static 'img/logo.png' %}" alt="OpenToAll" class="w-9 h-9 object-contain transition-transform group-hover:scale-105">
+                <img src="{% static 'img/logo.png' %}" alt="" class="w-9 h-9 object-contain transition-transform group-hover:scale-105">
                 <span class="font-display font-bold text-xl tracking-tight text-on-surface">Open<span class="text-primary">ToAll</span></span>
             </a>
         </div>
@@ -42,7 +42,7 @@
                 {% else %}
                 <span class="w-8 h-8 rounded-lg bg-primary/15 text-primary grid place-items-center text-sm font-bold">{{ profile.initials }}</span>
                 {% endif %}
-                <span class="hidden sm:inline text-sm font-medium">{{ profile.github_username|default:user.username }}</span>
+                <span class="sr-only sm:not-sr-only text-sm font-medium">{{ profile.github_username|default:user.username }}</span>
             </a>
             {% endwith %}
             <a href="{% url 'account_logout' %}" class="hidden sm:flex w-10 h-10 items-center justify-center rounded-lg text-on-surface-variant hover:bg-surface-container transition-colors" title="Déconnexion">
@@ -51,7 +51,7 @@
             {% else %}
             <a href="{% url 'account_login' %}" class="ml-1 inline-flex items-center gap-2 bg-primary text-on-primary text-sm font-semibold px-4 py-2 rounded-lg shadow-sm hover:shadow-card-hover hover:bg-primary-container transition-all active:scale-95">
                 <span class="material-symbols-outlined text-[18px]">login</span>
-                <span class="hidden sm:inline">Connexion</span>
+                <span class="sr-only sm:not-sr-only">Connexion</span>
             </a>
             {% endif %}
         </div>
@@ -63,7 +63,7 @@
 <aside id="mobile-drawer" class="fixed top-0 left-0 h-full w-4/5 max-w-xs bg-surface z-[70] -translate-x-full transition-transform duration-300 lg:hidden flex flex-col p-5 gap-2">
     <div class="flex items-center justify-between mb-4">
         <a href="{{ home_url }}" class="flex items-center gap-2.5">
-            <img src="{% static 'img/logo.png' %}" alt="OpenToAll" class="w-9 h-9 object-contain">
+            <img src="{% static 'img/logo.png' %}" alt="" class="w-9 h-9 object-contain">
             <span class="font-display font-bold text-xl">Open<span class="text-primary">ToAll</span></span>
         </a>
         <button onclick="toggleDrawer(false)" class="w-9 h-9 grid place-items-center rounded-lg hover:bg-surface-container"><span class="material-symbols-outlined">close</span></button>
diff --git a/core/templates/core/profile.html b/core/templates/core/profile.html
index 2bf2f54..ea24a25 100644
--- a/core/templates/core/profile.html
+++ b/core/templates/core/profile.html
@@ -13,7 +13,7 @@
             <div class="relative shrink-0">
                 <div class="absolute inset-0 bg-primary/25 rounded-2xl blur-xl"></div>
                 {% if profile.avatar_url %}
-                <img src="{{ profile.avatar_url }}" alt="{{ profile.github_username }}" class="relative w-28 h-28 lg:w-32 lg:h-32 rounded-2xl object-cover shadow-card border-2 border-surface-container-lowest bg-surface-container">
+                <img src="{{ profile.avatar_url }}" alt="" class="relative w-28 h-28 lg:w-32 lg:h-32 rounded-2xl object-cover shadow-card border-2 border-surface-container-lowest bg-surface-container">
                 {% else %}
                 <div class="relative w-28 h-28 lg:w-32 lg:h-32 rounded-2xl grid place-items-center bg-primary/15 text-primary font-display font-bold text-4xl shadow-card">{{ profile.initials }}</div>
                 {% endif %}