I need a straightforward, text-based CAPTCHA integrated into the existing login form of my website. No reCAPTCHA, hCaptcha, or third-party services—just a simple challenge-response that stops bots yet keeps the user experience smooth. Please hook the check into both the front-end display and the back-end validation so failed attempts are blocked and logged, while successful submissions continue exactly as they do now. The styling should match the current form, and your code must be clean, well-commented, and easy for me to maintain. Deliverables • Fully functioning text CAPTCHA rendered on the login page • Server-side verification logic tied into our current authentication flow • Brief read-me or inline comments explaining where to adjust question length, font, expiry time, and error messaging I’ll provide immediate access to the repo and a staging URL once we agree to proceed, and I’ll test the work on both desktop and mobile before sign-off. Mobile