checkbox can't be unselected

src/public/css/seca.css

@@ -1,5 +1,5 @@
 * {
-  font-family: 'Courier New', Courier, monospace;
+  font-family: Arial, Helvetica, sans-serif;
   box-sizing: border-box;
 }
 

src/public/javascript/offers.js

@@ -29,6 +29,8 @@ const btcMethodCheckboxesWarning = document.getElementById(
 
 const btcMethodCheckboxes = [onchainCheckbox, lightningCheckbox];
 
+const publishOfferButton = document.getElementById('button-submit-offer');
+
 function toggleCreateOfferControls() {
   createOfferControls.style.display =
     createOfferControls.style.display === 'block' ? 'none' : 'block';
@@ -92,19 +94,10 @@ function updateBtcInput() {
   btcAmountInput.value = formattedSatsAmount;
 }
 
-function validateBitcoinMethodCheckboxes() {
-  let noneChecked = true;
-
-  for (const aCheckbox of btcMethodCheckboxes) {
-    if (aCheckbox.checked) {
-      noneChecked = false;
-    }
-  }
-
-  if (noneChecked) {
-    btcMethodCheckboxesWarning.style.display = 'block';
-  } else {
-    btcMethodCheckboxesWarning.style.display = 'none';
+function validateBitcoinMethodCheckboxes(clickedCheckbox) {
+  let checkedCount = btcMethodCheckboxes.filter((cb) => cb.checked).length;
+  if (checkedCount === 0) {
+    clickedCheckbox.checked = true;
   }
 }
 
@@ -141,7 +134,9 @@ eurAmountInput.addEventListener('input', () => {
 });
 
 for (const btcMethodCheckbox of btcMethodCheckboxes) {
-  btcMethodCheckbox.addEventListener('input', () => {
-    validateBitcoinMethodCheckboxes();
+  btcMethodCheckbox.addEventListener('click', () => {
+    validateBitcoinMethodCheckboxes(btcMethodCheckbox);
   });
 }
+
+updateBtcInput();

src/views/offers.ejs

@@ -70,7 +70,7 @@
                 id="input-eur-amount"
                 type="text"
                 class="money-input input-money-amount"
-                placeholder="100"
+                value="100"
                 required
               />
               <div id="eur-symbol" class="curr-symbol">
@@ -162,7 +162,7 @@
     </div>
 
     <%- include("partials/appCommonScripts") %>
-    <script src="/javascript/offers.js"></script>
     <script src="/javascript/utils.js"></script>
+    <script src="/javascript/offers.js"></script>
   </body>
 </html>