fix: match french header size to english

Author: AtlasNexusTech

index.html

@@ -240,11 +240,11 @@
 
 <!-- Nav -->
 <header class="nav-fixed-center">
-  <nav class="glass-nav flex h-16 items-center justify-between rounded-full px-4 sm:h-[72px] sm:px-6">
+  <nav class="glass-nav flex h-[50px] items-center justify-between rounded-full px-5 sm:px-8">
     <a href="#top" class="flex items-center gap-2 no-underline shrink-0" aria-label="Atlas Nexus accueil">
-      <img src="/atlas-logo.png?v=20260527" alt="Atlas Nexus" class="h-9 w-9 rounded-lg">
-      <span class="hidden lg:inline-flex items-center text-base font-semibold tracking-tight text-foreground dark:text-dark-foreground">Atlas Nexus</span>
-      <span class="hidden lg:inline-flex rounded-full bg-accent/15 px-2 py-0.5 text-[10px] font-medium text-accent dark:text-green-400 -ml-0.5">Live</span>
+      <img src="/atlas-logo.png?v=20260527" alt="Atlas Nexus" class="h-12 w-12 rounded-xl">
+      <span class="hidden items-center text-lg font-semibold tracking-tight text-foreground dark:text-dark-foreground">Atlas Nexus</span>
+      <span class="hidden rounded-full bg-accent/15 px-2.5 py-1 text-[11px] font-medium text-accent dark:text-green-400 -ml-0.5">Live</span>
     </a>
     <ul class="hidden items-center gap-1 text-sm font-medium text-slate-500 dark:text-dark-dim md:flex">
       <li><a href="#products" class="relative rounded-full px-3 py-1.5 hover:text-foreground dark:hover:text-white transition-colors">Produits</a></li>