diff --git a/app/index.html b/app/index.html
index 2304702..e406223 100644
--- a/app/index.html
+++ b/app/index.html
@@ -865,11 +865,36 @@ function render() {
   totals.appendChild(grandRow);
   actCard.appendChild(totals);
 
-  const actionRow = el('div', {style:{display:'flex', gap:'12px', marginTop:'16px', flexWrap:'wrap'}});
-  const saveBtn = el('button', {className:'kb-btn kb-btn--soft', onClick: onSave}, 'Save form');
-  const genBtn = el('button', {className:'kb-btn kb-btn--primary kb-btn--lg', id:'gen-btn', style:{flex:'1'}, onClick: onGenerate});
-  genBtn.innerHTML = `<svg viewBox="0 0 16 16" fill="currentColor" width="16" height="16"><path d="M8 1a1 1 0 0 1 1 1v6.6l2.3-2.3a1 1 0 0 1 1.4 1.4l-4 4a1 1 0 0 1-1.4 0l-4-4a1 1 0 0 1 1.4-1.4L7 8.6V2a1 1 0 0 1 1-1zM3 13h10a1 1 0 1 1 0 2H3a1 1 0 1 1 0-2z"/></svg>Generate PDF`;
-  actionRow.append(saveBtn, genBtn);
+  const actionRow = el('div', {style:{display:'flex', gap:'10px', marginTop:'16px'}});
+
+  const saveBtn = el('button', {className:'kb-btn kb-btn--ghost', style:{flex:'0 0 20%'}, onClick: onSave}, 'Save');
+
+  const validateBtn = el('button', {className:'kb-btn kb-btn--ghost', style:{flex:'0 0 20%'}});
+  validateBtn.textContent = 'Validate';
+  validateBtn.addEventListener('click', () => {
+    const valBox = $('#val-box');
+    valBox.innerHTML = '';
+    const errs = validate();
+    if (errs.length) {
+      const note = el('div', {className:'kb-note kb-note--error'});
+      note.innerHTML = `<svg viewBox="0 0 16 16" fill="currentColor"><path d="M8.982 1.566a1.13 1.13 0 0 0-1.96 0L.165 13.233c-.457.778.091 1.767.98 1.767h13.713c.889 0 1.438-.99.98-1.767L8.982 1.566zM8 5c.535 0 .954.462.9.995l-.35 3.507a.552.552 0 0 1-1.1 0L7.1 5.995A.905.905 0 0 1 8 5zm.002 6a1 1 0 1 1 0 2 1 1 0 0 1 0-2z"/></svg>`;
+      const txt = el('div');
+      txt.innerHTML = '<strong>Please fix the following:</strong><br>' + errs.join('<br>');
+      note.appendChild(txt);
+      valBox.appendChild(note);
+      valBox.scrollIntoView({behavior:'smooth'});
+    } else {
+      const note = el('div', {className:'kb-note kb-note--success'});
+      note.innerHTML = `<svg viewBox="0 0 16 16" fill="currentColor"><path d="M16 8A8 8 0 1 1 0 8a8 8 0 0 1 16 0zm-3.97-3.03a.75.75 0 0 0-1.08.022L7.477 9.417 5.384 7.323a.75.75 0 0 0-1.06 1.061L6.97 11.03a.75.75 0 0 0 1.079-.02l3.992-4.99a.75.75 0 0 0-.01-1.05z"/></svg><div><strong>All good.</strong> The form is ready to download.</div>`;
+      valBox.appendChild(note);
+      valBox.scrollIntoView({behavior:'smooth'});
+    }
+  });
+
+  const genBtn = el('button', {className:'kb-btn kb-btn--primary kb-btn--lg', id:'gen-btn', style:{flex:'0 0 calc(60% - 20px)'}, onClick: onGenerate});
+  genBtn.innerHTML = `<svg viewBox="0 0 16 16" fill="currentColor" width="16" height="16"><path d="M8 1a1 1 0 0 1 1 1v6.6l2.3-2.3a1 1 0 0 1 1.4 1.4l-4 4a1 1 0 0 1-1.4 0l-4-4a1 1 0 0 1 1.4-1.4L7 8.6V2a1 1 0 0 1 1-1zM3 13h10a1 1 0 1 1 0 2H3a1 1 0 1 1 0-2z"/></svg>Download reimbursement form`;
+
+  actionRow.append(saveBtn, validateBtn, genBtn);
   actCard.appendChild(actionRow);
   wrap.appendChild(actCard);