fix: newsletter subscribe

Signed-off-by: Dipankar Das <[email protected]>

Author: dipankardas011

src/components/AppFooter.astro

@@ -145,8 +145,7 @@ const isProduction = import.meta.env.PROD;
               <div class="sib-captcha sib-form-block mb-3">
                 <div class="form__entry entry_block">
                   <div class="form__label-row">
-                    <div class="cf-turnstile sib-visible-recaptcha" id="sib-captcha" data-sitekey="0x4AAAAAACEW9pOFvA0Drq8K" data-callback="handleCaptchaResponse"></div>
-                    <input type="hidden" id="g-recaptcha-response" name="g-recaptcha-response" class="sib-captcha-token" data-required="true" />
+                    <div class="cf-turnstile g-recaptcha" data-sitekey="0x4AAAAAACEW9pOFvA0Drq8K" id="sib-captcha" data-callback="handleCaptchaResponse" data-language="en"></div>
                   </div>
                   <label class="entry__error entry__error--primary" style="font-size:14px; text-align:left; font-family:'Inter', Helvetica, sans-serif; display:none;"></label>
                 </div>

src/layouts/Layout.astro

@@ -181,29 +181,16 @@ const { title = "ksctl - Strive towards Fast, Efficient and Sustainable Computin
 
       <!-- Brevo Form Scripts -->
       <script is:inline>
-        // Turnstile/reCAPTCHA callback function
+        // Turnstile callback function - matches Brevo's Cloudflare Turnstile template
         window.handleCaptchaResponse = function(token) {
           console.log('Captcha completed:', token);
 
-          // Set the token in the hidden input field that Brevo expects
-          var tokenInput = document.getElementById('g-recaptcha-response');
-          if (tokenInput) {
-            tokenInput.value = token;
-          }
-
-          // Trigger the captchaChange event for Brevo
+          // Dispatch captchaChange event for Brevo
           var event = new Event('captchaChange');
-          var captchaElement = document.getElementById('sib-captcha');
-          if (captchaElement) {
-            captchaElement.dataset.captchaToken = token;
-            captchaElement.dispatchEvent(event);
-          }
+          document.getElementById('sib-captcha').dispatchEvent(event);
 
-          // Also dispatch input event on the hidden field
-          if (tokenInput) {
-            var inputEvent = new Event('input', { bubbles: true });
-            tokenInput.dispatchEvent(inputEvent);
-          }
+          // CRITICAL: Make Turnstile masquerade as reCAPTCHA for Brevo compatibility
+          window.grecaptcha = window.turnstile;
         };
 
         // Brevo form configuration (must be set before main.js loads)