diff --git a/nuxt4/app/components/UserHeader.vue b/nuxt4/app/components/UserHeader.vue
index 0a68aa5..cc04330 100644
--- a/nuxt4/app/components/UserHeader.vue
+++ b/nuxt4/app/components/UserHeader.vue
@@ -1,7 +1,7 @@
 <template>
   <div class="user-header">
-    <!-- Header principal clickable -->
-    <div class="header-content" @click="openEditProfile">
+    <!-- Header principal -->
+    <div class="header-content">
       <!-- Avatar -->
       <div class="avatar-section">
         <UAvatar
@@ -15,7 +15,12 @@
 
       <!-- Info del usuario -->
       <div class="user-info">
-        <h1 class="user-name">{{ user?.name || user?.username }}</h1>
+        <div class="user-name-row">
+          <h1 class="user-name">{{ user?.name || user?.username }}</h1>
+          <button class="edit-button" @click.stop="openEditProfile" title="Editar perfil">
+            <UIcon name="i-heroicons-pencil-square" class="w-4 h-4" />
+          </button>
+        </div>
         <p class="user-email">{{ user?.email }}</p>
         <div class="user-badges">
           <UBadge
@@ -39,12 +44,6 @@
           </UBadge>
         </div>
       </div>
-
-      <!-- Ícono de edición -->
-      <div class="edit-hint">
-        <UIcon name="i-heroicons-pencil-square" class="w-5 h-5" />
-        <span class="edit-text">Editar perfil</span>
-      </div>
     </div>
 
     <!-- Botón de tema -->
@@ -202,20 +201,10 @@ const handleSubmit = async () => {
   box-shadow:
     0 8px 32px 0 rgba(31, 38, 135, 0.15),
     inset 0 1px 1px 0 rgba(255, 255, 255, 0.3);
-  cursor: pointer;
   transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
   border: 1px solid rgba(255, 255, 255, 0.18);
 }
 
-.header-content:hover {
-  transform: translateY(-4px) scale(1.01);
-  box-shadow:
-    0 12px 40px 0 rgba(31, 38, 135, 0.25),
-    0 0 0 1px rgba(var(--color-primary-500), 0.4),
-    inset 0 1px 1px 0 rgba(255, 255, 255, 0.4);
-  border-color: rgba(var(--color-primary-500), 0.5);
-}
-
 .avatar-section {
   flex-shrink: 0;
 }
@@ -225,15 +214,17 @@ const handleSubmit = async () => {
   transition: box-shadow 0.3s ease;
 }
 
-.header-content:hover .avatar-glow {
-  box-shadow: 0 0 30px rgba(var(--color-primary-500), 0.6);
-}
-
 .user-info {
   flex: 1;
   min-width: 0;
 }
 
+.user-name-row {
+  display: flex;
+  align-items: center;
+  gap: 0.5rem;
+}
+
 .user-name {
   font-size: 1.5rem;
   font-weight: 700;
@@ -271,28 +262,22 @@ const handleSubmit = async () => {
     inset 0 1px 1px 0 rgba(255, 255, 255, 0.4);
 }
 
-.edit-hint {
+.edit-button {
   display: flex;
   align-items: center;
-  gap: 0.5rem;
-  padding: 0.5rem 1rem;
-  border-radius: 0.5rem;
-  background: rgba(var(--color-primary-500), 0.1);
+  justify-content: center;
+  padding: 0.25rem;
+  background: transparent;
+  border: none;
+  color: var(--color-gray-400);
+  cursor: pointer;
+  transition: all 0.2s ease;
+  border-radius: 0.375rem;
+}
+
+.edit-button:hover {
   color: rgb(var(--color-primary-500));
-  opacity: 0;
-  transform: translateX(-10px);
-  transition: all 0.3s ease;
-}
-
-.header-content:hover .edit-hint {
-  opacity: 1;
-  transform: translateX(0);
-}
-
-.edit-text {
-  font-size: 0.875rem;
-  font-weight: 500;
-  white-space: nowrap;
+  background: rgba(var(--color-primary-500), 0.1);
 }
 
 .theme-toggle {
@@ -348,15 +333,6 @@ const handleSubmit = async () => {
     padding: 1.5rem 1rem;
   }
 
-  .edit-hint {
-    opacity: 1;
-    transform: translateX(0);
-  }
-
-  .edit-text {
-    display: none;
-  }
-
   .theme-toggle {
     top: 0.5rem;
     right: 0.5rem;
diff --git a/nuxt4/app/components/auth/ApplicationsList.vue b/nuxt4/app/components/auth/ApplicationsList.vue
index 8aaf63d..07fb1b4 100644
--- a/nuxt4/app/components/auth/ApplicationsList.vue
+++ b/nuxt4/app/components/auth/ApplicationsList.vue
@@ -122,8 +122,15 @@ const { data: applications, pending, error, refresh } = await useFetch<Applicati
   default: () => []
 })
 
-// Estado de filtros
-const selectedGroups = ref<string[]>([])
+// Cookie para persistir filtros seleccionados
+const filtersCookie = useCookie<string[]>('app-filters', {
+  maxAge: 60 * 60 * 24 * 365, // 1 año
+  sameSite: 'lax',
+  default: () => []
+})
+
+// Estado de filtros (inicializado desde cookie)
+const selectedGroups = ref<string[]>(filtersCookie.value || [])
 
 // Estado para iconos fallidos (para no intentar cargarlos de nuevo)
 const failedIcons = ref<Set<string>>(new Set())
@@ -222,8 +229,15 @@ const toggleGroup = (group: string) => {
   } else {
     selectedGroups.value.splice(index, 1)
   }
+  // Guardar en cookie
+  filtersCookie.value = selectedGroups.value
 }
 
+// Sincronizar con cookie cuando cambian los filtros
+watch(selectedGroups, (newFilters) => {
+  filtersCookie.value = newFilters
+})
+
 // Refrescar automáticamente cada 5 minutos
 const refreshInterval = setInterval(() => {
   refresh()
diff --git a/nuxt4/app/composables/useTheme.ts b/nuxt4/app/composables/useTheme.ts
index 4badfab..36198b6 100644
--- a/nuxt4/app/composables/useTheme.ts
+++ b/nuxt4/app/composables/useTheme.ts
@@ -6,23 +6,43 @@
 export type Theme = 'day' | 'night'
 
 export const useTheme = () => {
-  // Estado del tema con persistencia
+  const themeCookie = useCookie<Theme>('theme', {
+    maxAge: 60 * 60 * 24 * 365, // 1 año
+    sameSite: 'lax'
+  })
+
+  // Estado del tema con persistencia en cookies
   const currentTheme = useState<Theme>('theme', () => {
-    if (import.meta.client && typeof window !== 'undefined') {
-      const saved = localStorage.getItem('theme')
-      if (saved === 'day' || saved === 'night') {
-        return saved
-      }
-      // Detectar preferencia del sistema
-      const prefersDark = window.matchMedia('(prefers-color-scheme: dark)').matches
-      return prefersDark ? 'night' : 'day'
+    // Primero intentar obtener de la cookie
+    if (themeCookie.value) {
+      return themeCookie.value
     }
+
+    // Si no hay cookie, detectar preferencia del sistema
+    if (import.meta.client && typeof window !== 'undefined') {
+      const prefersDark = window.matchMedia('(prefers-color-scheme: dark)').matches
+      const systemTheme = prefersDark ? 'night' : 'day'
+      themeCookie.value = systemTheme
+      return systemTheme
+    }
+
     return 'day'
   })
 
   // Computed para saber si es modo noche
   const isNight = computed(() => currentTheme.value === 'night')
 
+  // Función para actualizar theme-color meta tag
+  const updateThemeColor = (theme: Theme) => {
+    if (import.meta.client && typeof window !== 'undefined') {
+      const metaThemeColor = document.querySelector('meta[name="theme-color"]')
+      const color = theme === 'night' ? '#0B1026' : '#87CEEB' // Cielo nocturno / Cielo diurno
+      if (metaThemeColor) {
+        metaThemeColor.setAttribute('content', color)
+      }
+    }
+  }
+
   // Función para aplicar la clase dark al HTML
   const applyThemeClass = (theme: Theme) => {
     if (import.meta.client && typeof window !== 'undefined') {
@@ -34,6 +54,7 @@ export const useTheme = () => {
         html.classList.add('light')
         html.classList.remove('dark')
       }
+      updateThemeColor(theme)
     }
   }
 
@@ -46,23 +67,18 @@ export const useTheme = () => {
     // Sincronizar clase cuando cambie el tema
     watch(currentTheme, (newTheme) => {
       applyThemeClass(newTheme)
+      themeCookie.value = newTheme
     })
   }
 
   // Alternar tema
   const toggleTheme = () => {
     currentTheme.value = currentTheme.value === 'day' ? 'night' : 'day'
-    if (import.meta.client && typeof window !== 'undefined') {
-      localStorage.setItem('theme', currentTheme.value)
-    }
   }
 
   // Establecer tema específico
   const setTheme = (theme: Theme) => {
     currentTheme.value = theme
-    if (import.meta.client && typeof window !== 'undefined') {
-      localStorage.setItem('theme', theme)
-    }
   }
 
   return {