layout for mobile

index.html

@@ -1122,6 +1122,10 @@
       .features-grid { grid-template-columns: 1fr; }
       .pillars { flex-direction: column; align-items: center; }
       nav { padding: 0 16px; }
+      .nav-right { gap: 8px; }
+      .lang-switcher summary { padding: 6px; gap: 0; }
+      .lang-switcher .lang-label { display: none; }
+      .nav-right .btn-primary { padding: 8px 16px; font-size: 0.78rem; }
       .section { padding: 48px 20px; }
       .final-cta { padding: 48px 20px; }
       .founder-quote { padding: 28px; }
@@ -1158,7 +1162,7 @@
     </a>
     <div class="nav-right">
       <details id="lang-dropdown" class="lang-switcher">
-        <summary class="lang-current" aria-label="Select language"><i data-lucide="globe" style="width:16px;height:16px;"></i> <span id="lang-current-label">EN</span></summary>
+        <summary class="lang-current" aria-label="Select language"><i data-lucide="globe" style="width:16px;height:16px;"></i> <span id="lang-current-label" class="lang-label">EN</span></summary>
         <div class="lang-options">
           <button class="lang-option active" data-lang="en">EN</button>
           <button class="lang-option" data-lang="it">IT</button>