From ca35f5f1e01258dc8ab5f09c35e60de97ae8e249 Mon Sep 17 00:00:00 2001
From: duffyduck <info@hacker-net.de>
Date: Sun, 1 Nov 2026 12:41:29 +0100
Subject: [PATCH] =?UTF-8?q?feat(diagnostic):=20Knopf=20nach=20oben=20?=
 =?UTF-8?q?=E2=80=94=20schwebt=20unten=20rechts=20beim=20Scrollen?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
---
 diagnostic/index.html | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/diagnostic/index.html b/diagnostic/index.html
index 59f9d3b..51cbe3d 100644
--- a/diagnostic/index.html
+++ b/diagnostic/index.html
@@ -10870,5 +10870,24 @@
       <div id="versions-body" style="overflow-y:auto;padding:4px 12px;"></div>
     </div>
   </div>
+
+  <!-- Nach oben: schwebt unten rechts, sobald man ein Stueck gescrollt hat -->
+  <button id="to-top" type="button" title="Nach oben" aria-label="Nach oben"
+          onclick="window.scrollTo({ top: 0, behavior: 'smooth' })"
+          style="position:fixed;right:20px;bottom:20px;z-index:900;width:42px;height:42px;border-radius:50%;
+                 border:1px solid #2A2A3E;background:#1E1E2E;color:#E0E0F0;font-size:20px;line-height:1;
+                 cursor:pointer;box-shadow:0 2px 8px rgba(0,0,0,.5);opacity:0;pointer-events:none;transition:opacity .2s;">↑</button>
+  <script>
+    (function () {
+      const b = document.getElementById('to-top');
+      const upd = () => {
+        const on = window.scrollY > 400;
+        b.style.opacity = on ? '0.85' : '0';
+        b.style.pointerEvents = on ? 'auto' : 'none';
+      };
+      window.addEventListener('scroll', upd, { passive: true });
+      upd();
+    })();
+  </script>
 </body>
 </html>