tweaking series order tools

app/static/style.css

@@ -2036,6 +2036,55 @@ body.select-mode .gallery-infinite-container {
   font-size: 0.85rem;
 }
 
+/* Floating preview overlay (for select mode hover) */
+.floating-preview {
+  display: none;
+  position: fixed;
+  top: 80px;
+  left: 50%;
+  transform: translateX(-50%);
+  z-index: 1000;
+  width: 600px;
+  height: 500px;
+  background: var(--panel);
+  border: 2px solid var(--accent);
+  border-radius: 8px;
+  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
+  padding: 4px;
+  pointer-events: none;
+}
+.floating-preview.active {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+}
+.floating-preview img {
+  max-width: 100%;
+  max-height: 100%;
+  object-fit: contain;
+  border-radius: 4px;
+}
+
+/* Selection order badge on gallery items */
+.selection-order-badge {
+  position: absolute;
+  top: 4px;
+  left: 4px;
+  width: 24px;
+  height: 24px;
+  background: var(--accent);
+  color: white;
+  border-radius: 50%;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  font-size: 0.75rem;
+  font-weight: bold;
+  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
+  z-index: 10;
+  pointer-events: none;
+}
+
 /* Mobile: full-width panel from bottom */
 @media (max-width: 640px) {
   .bulk-editor-panel {