diff --git a/vite.config.js b/vite.config.js
index 411b4c9..2409ce4 100644
--- a/vite.config.js
+++ b/vite.config.js
@@ -39,21 +39,25 @@ const html = createHtmlPlugin({
       {
         tag: 'script',
         children: `(function(){
-  function r(f){if(document.readyState!=='loading')f();else document.addEventListener('DOMContentLoaded',f)}
+  function ready(f){if(document.readyState!=='loading')f();else document.addEventListener('DOMContentLoaded',f)}
   function overlay(){
     var o=document.getElementById('sw-overlay'); if(o) return o
     o=document.createElement('div'); o.id='sw-overlay'
-    Object.assign(o.style,{position:'fixed',top:'0',left:'0',right:'0',padding:'20px 24px',zIndex:'2147483647',background:'linear-gradient(90deg,#ff9800,#ffc107)',color:'#fff',textAlign:'center',font:'700 22px/1.2 system-ui,-apple-system,Segoe UI,Roboto,sans-serif'})
-    var s=document.createElement('span'); s.id='sw-overlay-text'
-    o.appendChild(s); document.body.appendChild(o); return o
+    Object.assign(o.style,{position:'fixed',top:'0',left:'0',right:'0',padding:'18px 56px 18px 20px',zIndex:'2147483647',background:'linear-gradient(90deg,#ff9800,#ffc107)',color:'#fff',textAlign:'center',font:'700 18px/1.2 system-ui,-apple-system,Segoe UI,Roboto,sans-serif',letterSpacing:'0.4px',boxShadow:'0 8px 24px rgba(0,0,0,.25)'})
+    var text=document.createElement('span'); text.id='sw-overlay-text'
+    var x=document.createElement('button'); x.type='button'; x.textContent='×'
+    Object.assign(x.style,{position:'absolute',top:'8px',right:'12px',width:'36px',height:'36px',border:'0',borderRadius:'10px',background:'rgba(255,255,255,.18)',color:'#fff',fontSize:'24px',cursor:'pointer'})
+    x.addEventListener('click',function(){o.remove();sessionStorage.setItem('swOverlayClosed','1')})
+    o.appendChild(text); o.appendChild(x); document.body.appendChild(o); return o
   }
-  function setStatus(k,msg){
+  function setStatus(kind,msg){
     var o=overlay(), t=o.querySelector('#sw-overlay-text')
-    if(k==='ok'){o.style.background='linear-gradient(90deg,#00c853,#00e5ff)'; t.textContent=msg||'SERVICE WORKER: ACTIVE'}
-    else if(k==='fail'){o.style.background='linear-gradient(90deg,#c62828,#ad1457)'; t.textContent=msg||'SERVICE WORKER: NOT RUNNING'}
+    if(kind==='ok'){o.style.background='linear-gradient(90deg,#00c853,#00e5ff)'; t.textContent=msg||'SERVICE WORKER: ACTIVE'}
+    else if(kind==='fail'){o.style.background='linear-gradient(90deg,#c62828,#ad1457)'; t.textContent=msg||'SERVICE WORKER: NOT RUNNING'}
     else {o.style.background='linear-gradient(90deg,#ff9800,#ffc107)'; t.textContent=msg||'SERVICE WORKER: WAITING'}
   }
-  r(function(){
+  ready(function(){
+    if(sessionStorage.getItem('swOverlayClosed')==='1') return
     setStatus('wait','SERVICE WORKER: WAITING')
     if(!('serviceWorker' in navigator)){setStatus('fail','NO SERVICE WORKER SUPPORT'); alert('NO SERVICE WORKER SUPPORT'); return}
     var ok=false