diff --git a/src/client/context/AuthContext.tsx b/src/client/context/AuthContext.tsx
index f39a0fe..e0097b0 100644
--- a/src/client/context/AuthContext.tsx
+++ b/src/client/context/AuthContext.tsx
@@ -25,27 +25,45 @@ export const AuthProvider: React.FC<AuthProviderProps> = ({ children }) => {
     const [appUser, setAppUser] = useState<AppUser | null>(null);
 
     useEffect(() => {
-        const storedUser = getUser();
+        const storedUser = localStorage.getItem('gpi_user');
         if (storedUser) {
-            setAppUser({ ...defaultUser, ...storedUser, role: storedUser.role as UserRole });
-        } else {
-            setAppUser(defaultUser);
+            try {
+                setAppUser(JSON.parse(storedUser));
+            } catch (e) {
+                console.error("Error parsing stored user", e);
+            }
         }
         
         setApiOrganizationId(DEFAULT_ORGANIZATION_ID, DEFAULT_ORGANIZATION_NAME);
     }, []);
 
-    const isDeveloper = useCallback(() => false, []);
-    const isAdmin = useCallback(() => true, []);
-    const isUser = useCallback(() => true, []);
-    const isGuest = useCallback(() => false, []);
-    const canEdit = useCallback(() => true, []);
+    const signInWithPassword = async (password: string): Promise<boolean> => {
+        if (password === '@@Gi05Br;;') {
+            const adminUser: AppUser = {
+                ...defaultUser,
+                id: 'admin-001',
+                email: 'admtracksteel@gmail.com',
+                name: 'Administrator / DEV',
+                role: 'admin'
+            };
+            setAppUser(adminUser);
+            localStorage.setItem('gpi_user', JSON.stringify(adminUser));
+            return true;
+        }
+        return false;
+    };
+
+    const isDeveloper = useCallback(() => appUser?.email === 'admtracksteel@gmail.com', [appUser]);
+    const isAdmin = useCallback(() => appUser?.role === 'admin' || appUser?.email === 'admtracksteel@gmail.com', [appUser]);
+    const isUser = useCallback(() => !!appUser, [appUser]);
+    const isGuest = useCallback(() => !appUser, [appUser]);
+    const canEdit = useCallback(() => isAdmin(), [isAdmin]);
     const refetchUser = useCallback(async () => {}, []);
 
     const value = useMemo(() => ({
         appUser,
         isLoading: false,
-        isSignedIn: true,
+        isSignedIn: !!appUser,
         error: null,
         isAdmin,
         isUser,
@@ -53,7 +71,8 @@ export const AuthProvider: React.FC<AuthProviderProps> = ({ children }) => {
         isDeveloper,
         canEdit,
         refetchUser,
-    }), [appUser, isAdmin, isUser, isGuest, isDeveloper, canEdit, refetchUser]);
+        signInWithPassword
+    }), [appUser, isAdmin, isUser, isGuest, isDeveloper, canEdit, refetchUser, signInWithPassword]);
 
     return (
         <AuthContext.Provider value={value}>
diff --git a/src/client/context/AuthContextType.ts b/src/client/context/AuthContextType.ts
index 7529430..e4feb18 100644
--- a/src/client/context/AuthContextType.ts
+++ b/src/client/context/AuthContextType.ts
@@ -12,6 +12,7 @@ export interface AuthContextType {
     isDeveloper: () => boolean;
     canEdit: () => boolean;
     refetchUser: () => Promise<void>;
+    signInWithPassword: (password: string) => Promise<boolean>;
 }
 
 export const AuthContext = createContext<AuthContextType | undefined>(undefined);
diff --git a/src/client/pages/Login.tsx b/src/client/pages/Login.tsx
index 3ba3578..3c67157 100644
--- a/src/client/pages/Login.tsx
+++ b/src/client/pages/Login.tsx
@@ -1,13 +1,32 @@
-import { Hammer } from "lucide-react";
-import { useLogto } from "@logto/react";
-
-const CALLBACK_URL = import.meta.env.VITE_LOGTO_CALLBACK_URL || `${window.location.origin}/callback`;
+import React, { useState } from 'react';
+import { Hammer, Lock, ShieldCheck } from "lucide-react";
+import { useAuth } from '../context/useAuth';
+import { useNavigate } from 'react-router-dom';
 
 export const Login = () => {
-    const { signIn } = useLogto();
+    const [password, setPassword] = useState('');
+    const [error, setError] = useState('');
+    const [loading, setLoading] = useState(false);
+    const { signInWithPassword } = useAuth();
+    const navigate = useNavigate();
 
-    const handleLogin = () => {
-        signIn(CALLBACK_URL);
+    const handleSubmit = async (e: React.FormEvent) => {
+        e.preventDefault();
+        setError('');
+        setLoading(true);
+
+        try {
+            const success = await signInWithPassword(password);
+            if (success) {
+                navigate('/');
+            } else {
+                setError('Senha incorreta. Acesso negado.');
+            }
+        } catch (err) {
+            setError('Erro ao processar login.');
+        } finally {
+            setLoading(false);
+        }
     };
 
     return (
@@ -19,32 +38,54 @@ export const Login = () => {
             <div className="relative z-10 w-full max-w-md px-6 flex flex-col items-center">
                 {/* Logo Area */}
                 <div className="mb-8 flex flex-col items-center text-center">
-                    <div className="w-16 h-16 rounded-2xl bg-primary flex items-center justify-center text-white font-bold text-3xl shadow-2xl shadow-primary/40 mb-4 animate-in zoom-in duration-700">
+                    <div className="w-16 h-16 rounded-2xl bg-primary flex items-center justify-center text-white font-bold text-3xl shadow-2xl shadow-primary/40 mb-4">
                         G
                     </div>
-                    <h1 className="text-3xl font-bold text-text-main tracking-tight mb-1">GPI</h1>
-                    <p className="text-text-muted text-sm font-medium uppercase tracking-widest">Gestão de Pintura Industrial</p>
+                    <h1 className="text-3xl font-bold text-text-main tracking-tight mb-1">GPI RESTRICT</h1>
+                    <p className="text-text-muted text-[10px] font-black uppercase tracking-[0.3em]">Ambiente de Desenvolvimento</p>
                 </div>
 
-                {/* Login Button - Logto */}
-                <div className="w-full bg-surface rounded-[2rem] border border-border/40 shadow-2xl shadow-primary/5 p-8 animate-in slide-in-from-bottom-8 duration-1000">
-                    <button
-                        onClick={handleLogin}
-                        className="w-full flex items-center justify-center gap-3 px-6 py-4 bg-primary hover:bg-primary/90 text-white font-bold rounded-xl transition-all shadow-lg shadow-primary/20"
-                    >
-                        <svg width="20" height="20" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
-                            <path fill="#4285F4" d="M22.56 12.25c0-.78-.07-1.53-.2-2.25H12v4.26h5.92c-.26 1.37-1.04 2.53-2.21 3.31v2.77h3.57c2.08-1.92 3.28-4.74 3.28-8.09z"/>
-                            <path fill="#34A853" d="M12 23c2.97 0 5.46-.98 7.28-2.66l-3.57-2.77c-.98.66-2.23 1.06-3.71 1.06-2.86 0-5.29-1.93-6.16-4.53H2.18v2.84C3.99 20.53 7.7 23 12 23z"/>
-                            <path fill="#FBBC05" d="M5.84 14.09c-.22-.66-.35-1.36-.35-2.09s.13-1.43.35-2.09V7.07H2.18C1.43 8.55 1 10.22 1 12s.43 3.45 1.18 4.93l2.85-2.22.81-.62z"/>
-                            <path fill="#EA4335" d="M12 5.38c1.62 0 3.06.56 4.21 1.64l3.15-3.15C17.45 2.09 14.97 1 12 1 7.7 1 3.47 2.18 7.07l3.66 2.84c.87-2.6 3.3-4.53 6.16-4.53z"/>
-                        </svg>
-                        Continuar com Google
-                    </button>
+                {/* Login Form */}
+                <div className="w-full bg-surface rounded-[2.5rem] border border-border/40 shadow-2xl shadow-primary/5 p-10 backdrop-blur-sm">
+                    <div className="flex items-center gap-3 mb-8 text-primary">
+                        <Lock size={20} className="opacity-70" />
+                        <h2 className="text-lg font-bold uppercase tracking-tight">Chave de Acesso</h2>
+                    </div>
+
+                    <form onSubmit={handleSubmit} className="space-y-6">
+                        <div className="space-y-2">
+                            <input
+                                type="password"
+                                placeholder="Digite a senha mestra..."
+                                value={password}
+                                onChange={(e) => setPassword(e.target.value)}
+                                className="w-full h-14 bg-surface-soft border border-border/40 rounded-2xl px-6 text-sm focus:ring-4 focus:ring-primary/10 focus:border-primary transition-all font-bold placeholder:font-medium tracking-widest text-center"
+                                required
+                                autoFocus
+                            />
+                            {error && <p className="text-error text-[10px] font-bold uppercase text-center mt-2 tracking-wider">{error}</p>}
+                        </div>
+
+                        <button
+                            type="submit"
+                            disabled={loading}
+                            className="w-full h-14 bg-primary hover:bg-primary/90 text-white font-black uppercase tracking-widest rounded-2xl transition-all shadow-lg shadow-primary/20 flex items-center justify-center gap-3 active:scale-95 disabled:opacity-50"
+                        >
+                            {loading ? (
+                                <div className="w-5 h-5 border-2 border-white/30 border-t-white rounded-full animate-spin" />
+                            ) : (
+                                <>
+                                    <ShieldCheck size={20} />
+                                    Entrar no Sistema
+                                </>
+                            )}
+                        </button>
+                    </form>
                 </div>
 
-                <div className="mt-8 flex items-center gap-2 text-text-muted/60 text-xs font-medium">
-                    <Hammer size={14} />
-                    <span>© 2026 GPI - Eficiência Industrial</span>
+                <div className="mt-8 flex items-center gap-2 text-text-muted/60 text-[10px] font-black uppercase tracking-widest">
+                    <Hammer size={12} />
+                    <span>Desenvolvimento Ativo</span>
                 </div>
             </div>
         </div>