diff --git a/frontend/.env.development b/frontend/.env.development
index 2d82e3c..79e1561 100644
--- a/frontend/.env.development
+++ b/frontend/.env.development
@@ -1,2 +1,4 @@
 
 VITE_GOOGLE_MAPS_API_KEY=AIzaSyBKSSmUXBxLbKBqhAtVJ2CljDfkJcWIGzg
+VITE_SUPABASE_URL=https://bjgixlugjzsccazdfmph.supabase.co
+VITE_SUPABASE_ANON_KEY=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJzdXBhYmFzZSIsInJlZiI6ImJqZ2l4bHVnanpzY2NhemRmbXBoIiwicm9sZSI6ImFub24iLCJpYXQiOjE3NzIwNjQyMTAsImV4cCI6MjA4NzY0MDIxMH0.untLQoPi4yUr3cPnxo23wYSlg6xnNK0daKu9UHmFTp8
diff --git a/frontend/.env.production b/frontend/.env.production
index 7725720..1e6ad24 100644
--- a/frontend/.env.production
+++ b/frontend/.env.production
@@ -1,2 +1,4 @@
 VITE_GOOGLE_MAPS_API_KEY=AIzaSyDrKzxJ-9A48cWFRffpOnEdmRR1Ijjj--Y
+VITE_SUPABASE_URL=https://bjgixlugjzsccazdfmph.supabase.co
+VITE_SUPABASE_ANON_KEY=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJzdXBhYmFzZSIsInJlZiI6ImJqZ2l4bHVnanpzY2NhemRmbXBoIiwicm9sZSI6ImFub24iLCJpYXQiOjE3NzIwNjQyMTAsImV4cCI6MjA4NzY0MDIxMH0.untLQoPi4yUr3cPnxo23wYSlg6xnNK0daKu9UHmFTp8
 
diff --git a/frontend/src/supabase.ts b/frontend/src/supabase.ts
index 7d30f82..6982299 100644
--- a/frontend/src/supabase.ts
+++ b/frontend/src/supabase.ts
@@ -3,6 +3,18 @@ import { createClient } from '@supabase/supabase-js'
 export const SUPABASE_URL = import.meta.env.VITE_SUPABASE_URL
 export const SUPABASE_ANON_KEY = import.meta.env.VITE_SUPABASE_ANON_KEY
 
+if (!SUPABASE_URL || !SUPABASE_ANON_KEY) {
+    const errorMsg = 'SIBU | ERROR: Credenciales de Supabase no encontradas en las variables de entorno (.env).'
+    console.error(errorMsg, {
+        url: !!SUPABASE_URL,
+        key: !!SUPABASE_ANON_KEY
+    })
+    // En desarrollo, mostramos una alerta para que el usuario sepa qué falta inmediatamente
+    if (import.meta.env.DEV && typeof window !== 'undefined') {
+        alert(errorMsg)
+    }
+}
+
 // SIBU | Hybrid Storage: Maneja persistencia según la voluntad del usuario
 const authStorage = {
     getItem: (key: string) => localStorage.getItem(key) || sessionStorage.getItem(key),
@@ -21,7 +33,7 @@ const authStorage = {
     }
 }
 
-export const supabase = createClient(SUPABASE_URL, SUPABASE_ANON_KEY, {
+export const supabase = createClient(SUPABASE_URL || '', SUPABASE_ANON_KEY || '', {
     auth: {
         storage: authStorage as any,
         autoRefreshToken: true,