diff --git a/README.md b/README.md
deleted file mode 100644
index fb43dd3..0000000
--- a/README.md
+++ /dev/null
@@ -1,20 +0,0 @@
-<div align="center">
-<img width="1200" height="475" alt="GHBanner" src="https://ai.google.dev/static/site-assets/images/share-ais-513315318.png" />
-</div>
-
-# Run and deploy your AI Studio app
-
-This contains everything you need to run your app locally.
-
-View your app in AI Studio: https://ai.studio/apps/62f9c45c-fa79-4ea7-bd03-756d1cdb54e9
-
-## Run Locally
-
-**Prerequisites:**  Node.js
-
-
-1. Install dependencies:
-   `npm install`
-2. Set the `GEMINI_API_KEY` in [.env.local](.env.local) to your Gemini API key
-3. Run the app:
-   `npm run dev`
diff --git a/css/styles.css b/css/styles.css
index d79b448..ef19e23 100644
--- a/css/styles.css
+++ b/css/styles.css
@@ -286,18 +286,28 @@ h4 { font-size: 1.25rem; }
 [data-theme="dark"] .theme-icon-sun { display: block; }
 [data-theme="dark"] .theme-icon-moon { display: none; }
 
-/* Botón Hamburguesa Móvil */
+/* --- Botón Hamburguesa Móvil --- */
 .mobile-toggle-btn {
-  display: none;
-  background: none;
-  border: none;
+  display: none;  /* Oculto por defecto en desktop */
+  background: var(--bg-subtle);
+  border: 1px solid var(--border-color);
   color: var(--text-main);
-  font-size: 1.5rem;
+  min-width: 44px;
+  min-height: 44px;
+  border-radius: var(--radius-full);
   cursor: pointer;
-  padding: 0.5rem;
+  padding: 0;
+  transition: all var(--transition-fast);
+  align-items: center;
+  justify-content: center;
 }
 
-/* Menú Móvil Overlay */
+.mobile-toggle-btn:hover {
+  background: var(--border-color);
+  color: var(--ide-accent);
+}
+
+/* --- Menú Móvil Overlay --- */
 .mobile-menu-drawer {
   display: none;
   position: fixed;
@@ -316,6 +326,7 @@ h4 { font-size: 1.25rem; }
 }
 
 .mobile-menu-drawer.is-open {
+  display: block;
   transform: translateY(0);
   opacity: 1;
 }
@@ -1006,7 +1017,7 @@ h4 { font-size: 1.25rem; }
 
 @media (max-width: 768px) {
   .nav-links, .nav-actions .btn {
-    display: none;
+    display: none !important;
   }
 
   .nav-actions {
@@ -1016,17 +1027,11 @@ h4 { font-size: 1.25rem; }
   }
 
   .mobile-toggle-btn {
-    display: inline-flex;
+    display: flex !important;  /* Forzamos la visualización */
     align-items: center;
     justify-content: center;
     min-width: 44px;
     min-height: 44px;
-    background: var(--bg-subtle);
-    border: 1px solid var(--border-color);
-    color: var(--text-main);
-    border-radius: var(--radius-full);
-    padding: 0;
-    transition: all var(--transition-fast);
   }
 
   .mobile-toggle-btn:hover {
@@ -1034,10 +1039,6 @@ h4 { font-size: 1.25rem; }
     color: var(--ide-accent);
   }
 
-  .mobile-menu-drawer {
-    display: block;
-  }
-
   .hero-doble-entrada {
     grid-template-columns: 1fr;
   }
diff --git a/includes/header.html b/includes/header.html
index 92506ce..8123ffd 100644
--- a/includes/header.html
+++ b/includes/header.html
@@ -46,7 +46,13 @@
       <a href="contacto.html" class="btn btn-primary btn-sm">HABLEMOS</a>
 
       <!-- Botón Menú Móvil Hamburguesa -->
-      <button id="mobile-menu-btn" class="mobile-toggle-btn" type="button" aria-label="Abrir menú" aria-expanded="false">
+      <button 
+        id="mobile-menu-btn" 
+        class="mobile-toggle-btn" 
+        type="button" 
+        aria-label="Abrir menú" 
+        aria-expanded="false"
+      >
         <svg width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
           <line x1="3" y1="12" x2="21" y2="12"></line>
           <line x1="3" y1="6" x2="21" y2="6"></line>
diff --git a/js/main.js b/js/main.js
index 59ebb03..aefd6de 100644
--- a/js/main.js
+++ b/js/main.js
@@ -27,13 +27,20 @@ async function loadIncludes() {
   const footerElem = document.getElementById('site-footer');
 
   try {
-    if (headerElem) {
+    if (headerElem && headerElem.children.length === 0) {
       const headerRes = await fetch('/includes/header.html', { cache: 'no-store' });
       if (headerRes.ok) {
         headerElem.innerHTML = await headerRes.text();
         highlightActiveNavLink();
         attachHeaderEvents();
+      } else {
+        // ← NUEVO: Si el fetch falla (ej: 404), igual inicializar eventos
+        highlightActiveNavLink();
+        attachHeaderEvents();
       }
+    } else if (headerElem) {
+      highlightActiveNavLink();
+      attachHeaderEvents();
     }
 
     if (footerElem) {
@@ -43,7 +50,12 @@ async function loadIncludes() {
       }
     }
   } catch (err) {
-    console.warn('Nota: Inclusión modular de header/footer cargada con respaldo local.');
+    console.warn('Header modular no disponible:', err);
+    // ← NUEVO: Intentar inicializar igual si el header ya tiene contenido estático
+    if (headerElem && headerElem.children.length > 0) {
+      highlightActiveNavLink();
+      attachHeaderEvents();
+    }
   }
 }