✨feature: Add responsive styles

index.php

@@ -22,7 +22,7 @@
     <section class="panel">
       <h2>Actions</h2>
       <div class="content">
-        <div class="row">
+        <div class="row actions">
           <button data-action onclick="doAction('status')">Check Status</button>
           <button data-action onclick="handleWork()">Go to Work</button>
           <button data-action onclick="handleSleep()">Sleep</button>
@@ -54,7 +54,7 @@
       <div id="state" class="content"></div>
     </section>
   </main>
-
+  <button id="backToTop" aria-label="Back to top" title="Back to top">↑ Top</button>
   <script src="app.js"></script>
 </body>
 </html>