diff --git a/public/locales/pt/auth.json b/public/locales/pt/auth.json
new file mode 100644
index 0000000..28cdec1
--- /dev/null
+++ b/public/locales/pt/auth.json
@@ -0,0 +1,111 @@
+{
+  "validationError": "Validation Error",
+  "primaryUsernameRequired": "Primary username is required for sub account login",
+  "subNameRequired": "Sub account name is required for sub account login",
+  "usernameRequired": "Username is required",
+  "passwordRequired": "Password is required",
+  "loginFailed": "Login Failed",
+  "genericError": "An error occurred, please try again",
+  "providerLoginFailed": "{{provider}} Login Failed",
+  "providerLoginFailedMsg": "Couldn't log in with {{provider}}, please try again",
+  "providerLoginError": "{{provider}} Login Error",
+  "networkError": "Network error occurred, please try again",
+  "mfaFailed": "Two-Factor Authentication Failed",
+  "oauthError": "OAuth Error",
+  "oauthBrowserFailed": "Failed to open authentication browser",
+  "primaryAccount": "Primary Account",
+  "subAccount": "Sub Account",
+  "username": "Username",
+  "primaryUsernamePlaceholder": "Enter primary account username",
+  "subNamePlaceholder": "Enter sub account name",
+  "forgotPassword": "Forgot password?",
+  "or": "or",
+  "email": "Email",
+  "displayNamePlaceholder": "How others see your name",
+  "signupFailed": "Signup Failed",
+  "signupDisabled": "Signup disabled, please contact admin",
+  "usernameMinLength": "Username must be at least 4 characters",
+  "invalidEmail": "Invalid email address",
+  "passwordLength": "Password must be between 8 and 64 characters",
+  "displayNameRequired": "Display name is required",
+  "displayNameChars": "Display name can only contain letters and numbers",
+  "resetEmailSent": "Reset Email Sent",
+  "resetEmailSentMsg": "Check your email for password reset instructions",
+  "resetFailed": "Reset Failed",
+  "resetFailedMsg": "Failed to send reset email, please try again later",
+  "emailPlaceholder": "you@example.com",
+  "passwordUpdated": "Password Updated",
+  "passwordUpdatedMsg": "Your password has been updated successfully. Redirecting to login...",
+  "passwordUpdateFailed": "Password Update Failed",
+  "passwordUpdateFailedMsg": "Failed to update password, please try again later",
+  "savePassword": "Save password",
+  "server": {
+    "url": "Server URL",
+    "dnsFailed": "Hostname could not be resolved. Check the URL for typos or verify DNS.",
+    "unreachable": "Unable to reach the server. Check the URL, port, and network connection.",
+    "invalidUrl": "Invalid URL format. Include the protocol (http:// or https://) and port if needed."
+  },
+  "mfaModal": {
+    "title": "Two-factor authentication",
+    "codeRequired": "Please enter a verification code",
+    "verifyFailed": "Failed to verify code. Please try again.",
+    "backupHint": "Enter one of the backup codes you saved when setting up two-factor authentication.",
+    "codeHint": "Enter the 6-digit code from your authenticator app.",
+    "verify": "Verify & Sign In",
+    "backupLabel": "Backup code",
+    "codeLabel": "Verification code",
+    "backupPlaceholder": "Enter backup code",
+    "useAuthenticator": "Use authenticator app instead",
+    "useBackup": "Use a backup code instead",
+    "backupOnce": "Each backup code can only be used once.",
+    "invalidCode": "Invalid verification code. Please try again."
+  },
+  "appleLoginFailed": "Apple Login Failed",
+  "googleLoginFailed": "Google Login Failed",
+  "createOne": "Create one",
+  "primaryAccountUsernameLabel": "Primary account username",
+  "subAccountNameLabel": "Sub account name",
+  "serverSettings": "Server settings",
+  "useDifferentAccount": "Use a different account",
+  "yourUsername": "Your username",
+  "backToSignIn": "Back to sign in",
+  "confirmNewPassword": "Confirm new password",
+  "newPassword": "New password",
+  "reenterPassword": "Re-enter your password",
+  "requestNewLink": "Request a new link",
+  "setNewPassword": "Set a new password",
+  "linkInvalid": "This link is not valid",
+  "createAccountButton": "Create account",
+  "createYourAccount": "Create your account",
+  "displayNameLabel": "Display name",
+  "usernameHint": "lowercase letters, numbers, dot and dash",
+  "termsShort": "By creating an account you agree to our Terms of Service and Privacy",
+  "checkYourEmail": "Check your email",
+  "resetYourPassword": "Reset your password",
+  "serverChangeWarning": "Changing the server clears locally cached data on this device.",
+  "serverConnected": "Connected. Taking you to sign in...",
+  "passwordLabel": "Password",
+  "showPassword": "Show password",
+  "hidePassword": "Hide password",
+  "loginPasswordPlaceholder": "Enter your password",
+  "signupPasswordPlaceholder": "At least 8 characters",
+  "signupPasswordHelper": "Use 8 to 64 characters.",
+  "orContinueWith": "or continue with",
+  "signupSignInFailed": "Your account was created, but signing in failed. Please sign in.",
+  "authenticating": {
+    "signingIn": "Signing you in",
+    "signingInSub": "This will only take a moment.",
+    "unknownProvider": "Unknown sign-in provider",
+    "contactSupport": "Please contact support.",
+    "signInFailed": "Sign-in failed",
+    "mfaCancelled": "Two-factor authentication was cancelled.",
+    "requestNotVerified": "The sign-in request could not be verified.",
+    "tryAgain": "Please try again.",
+    "mfaSessionMissing": "The MFA session is missing. Please try again.",
+    "twoFactor": "Two-factor authentication",
+    "verifyToContinue": "Verify your login to continue.",
+    "noToken": "No valid authentication token was returned.",
+    "backToSignIn": "Back to sign in",
+    "mfaFailed": "Two-factor authentication failed. Please try again."
+  }
+}