Description: - Verify that the application uses semantic HTML and follows basic accessibility principles. Tasks: - Check the heading hierarchy. - Check labels on all form elements. - Check alt text on images. - Test the entire application with the keyboard. - Check color contrast. - Use ARIA only where plain HTML is not sufficient. - Run Lighthouse. Acceptance: - All functionality can be used with the keyboard. - All inputs have visible labels. - Focus indication is visible. - HTML elements are used semantically. - Lighthouse shows no obvious accessibility errors.