My immediate goal is to let visitors sign in with their Google account instead of typing a password. The Google button should live only on the dedicated login page; everywhere else on the site can stay as-is. Whether or not the user already has a record in our database, the flow must create (or locate) the account, start a secure session, and then send the person back to the page they originally wanted. I am not sure if a Google API client ID and secret have been set up, so I will need your guidance to confirm this in the Google Cloud console and, if necessary, generate new credentials and whitelist the correct callback URL. Deliverables • Add Google OAuth 2.0 Sign-In to the existing login page • Verify the ID token server-side and create or link the user record • Handle session management and redirect the user cleanly after login • Provide a short README or screen-share so I know where the keys and callback settings live Once this piece is rock-solid, I plan to move on to streamlining the rest of the site flow, adding a new service section, and eventually building native iOS and Android apps. If you have the broader skill set, mention it, but the Google sign-in is the only scope for this milestone.