Update styles.css

styles.css

@@ -276,7 +276,29 @@ body {
     border-radius: 25px;
     font-weight: 600;
     cursor: pointer;
-    transition: background 0.3s ease, transform 0.3s ease;
+    transition: all 0.3s ease;
+    position: relative;
+    overflow: hidden;
+}
+
+.add-to-cart-btn::after {
+    content: '';
+    position: absolute;
+    width: 0;
+    height: 0;
+    background: rgba(255, 255, 255, 0.3);
+    border-radius: 50%;
+    transform: scale(0);
+    transition: transform 0.6s ease-out;
+}
+
+.add-to-cart-btn:active::after {
+    width: 200px;
+    height: 200px;
+    transform: scale(1);
+    left: 50%;
+    top: 50%;
+    transform: translate(-50%, -50%);
 }
 
 .add-to-cart-btn:hover {
@@ -409,7 +431,29 @@ body {
     border-radius: 25px;
     font-weight: 600;
     cursor: pointer;
-    transition: background 0.3s ease, transform 0.3s ease;
+    transition: all 0.3s ease;
+    position: relative;
+    overflow: hidden;
+}
+
+.calculate-btn::after {
+    content: '';
+    position: absolute;
+    width: 0;
+    height: 0;
+    background: rgba(255, 255, 255, 0.3);
+    border-radius: 50%;
+    transform: scale(0);
+    transition: transform 0.6s ease-out;
+}
+
+.calculate-btn:active::after {
+    width: 200px;
+    height: 200px;
+    transform: scale(1);
+    left: 50%;
+    top: 50%;
+    transform: translate(-50%, -50%);
 }
 
 .calculate-btn:hover {