diff --git a/script.js b/script.js
index ff68cb8..85ec8fe 100644
--- a/script.js
+++ b/script.js
@@ -627,13 +627,24 @@ var si = 0,
                 });
             })();
 
-            /* Buy Now — open Odoo shop product page in new tab */
-            var productUrls = {
-                54: 'https://ODOO4projects.com/shop/product/side-hustle-54',
-                55: 'https://ODOO4projects.com/shop/product/on-the-rise-55',
-                56: 'https://ODOO4projects.com/shop/product/powerhouse-56'
-            };
+            /* Buy Now — POST basket via form, opens checkout in new tab */
             window.buyNow = function (productId) {
-                var url = productUrls[productId] || 'https://ODOO4projects.com/shop';
-                window.open(url, '_blank');
+                var form = document.createElement('form');
+                form.method = 'POST';
+                form.action = 'https://ODOO4projects.com/shop/post_basket';
+                form.target = '_blank';
+                form.style.display = 'none';
+                var basket = document.createElement('input');
+                basket.type = 'hidden';
+                basket.name = 'basket';
+                basket.value = JSON.stringify([{ product_id: productId, qty: 1 }]);
+                form.appendChild(basket);
+                var clear = document.createElement('input');
+                clear.type = 'hidden';
+                clear.name = 'clear';
+                clear.value = '1';
+                form.appendChild(clear);
+                document.body.appendChild(form);
+                form.submit();
+                document.body.removeChild(form);
             };