UI: revert global margin tweaks; apply targeted spacing by setting elem_id=main-row and shrinking its top margin

app.py

@@ -4076,7 +4076,9 @@ Please be patient — each paper takes about 8–10 minutes to process.
     gr.HTML(_ui_header_logos_html())
 
     # -------- Input box --------
-    with gr.Row():
+    # Targeted spacing tweak: reduce the top margin only before the main row
+    gr.HTML("<style>#main-row{margin-top:6px!important}</style>")
+    with gr.Row(elem_id="main-row"):
         # ========== LEFT: INPUT ==========
         with gr.Column(scale=1):
             with gr.Accordion("Input", open=True):