- Add id="login-card" to the .card wrapper div - Change hx-target to #login-card (was #login-form) - Add hx-select="#login-card" so htmx extracts only the card element from the full-page response Without hx-select, htmx replaced the form's outerHTML with the entire page response, inserting a new .card inside the existing .card on every failed attempt. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>