diff --git a/debian/build-deb.sh b/debian/build-deb.sh
index 56ea70e..aeed470 100644
--- a/debian/build-deb.sh
+++ b/debian/build-deb.sh
@@ -13,7 +13,7 @@ BUILD_DIR="$REPO_ROOT/build/deb"
 
 # ── Config ────────────────────────────────────────────────────────────────────
 PKG_NAME="dupfinder"
-PKG_VERSION="1.0.9"
+PKG_VERSION="1.0.10"
 PKG_ARCH="amd64"
 DEB_FILE="${PKG_NAME}_${PKG_VERSION}_${PKG_ARCH}.deb"
 
diff --git a/templates/index.html b/templates/index.html
index 55aedb8..11e7c05 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -1288,19 +1288,13 @@ async function openGroup(groupId, cellEl) {
     state.activeGroupData = g;
     renderDetail(g);
 
-    // Insert detail panel after the row containing the clicked cell
+    // Position detail panel directly after the grid (in the grid's parent).
+    // Earlier we tried to thread it between grid rows but mixed parent
+    // contexts and threw "node is not a child of this node".
     const panel = el('detail-panel');
     const grid = el('gallery-grid');
-    if (cellEl) {
-      // find row end
-      const cellRect = cellEl.getBoundingClientRect();
-      const gridRect = grid.getBoundingClientRect();
-      const cells = Array.from(grid.children).filter(c => c.classList.contains('gallery-cell'));
-      const cols = Math.round(grid.offsetWidth / (cellEl.offsetWidth + 12));
-      const cellIdx = cells.indexOf(cellEl);
-      const rowEnd = Math.min(Math.ceil((cellIdx + 1) / cols) * cols, cells.length);
-      const afterCell = cells[rowEnd - 1];
-      grid.parentNode.insertBefore(panel, afterCell.nextSibling || el('load-more-wrap'));
+    if (panel.parentNode !== grid.parentNode || panel.previousSibling !== grid) {
+      grid.parentNode.insertBefore(panel, grid.nextSibling);
     }
     panel.classList.add('show');
     panel.scrollIntoView({ behavior: 'smooth', block: 'nearest' });