Fix UI layout: explicit scale=1 on all columns + CSS equal-width enforcement

app.py

@@ -1482,12 +1482,17 @@ def _update_slot_visibility(n):
 _SLOT_CSS = """
 /* Responsive video: fills column width, height auto from aspect ratio */
 .gradio-video video {
-    width: 100% !important;
-    height: auto !important;
-    max-height: 60vh !important;
+    width: 100%;
+    height: auto;
+    max-height: 60vh;
     object-fit: contain;
 }
-/* No hidden trigger inputs needed — regen uses direct Gradio queue API calls. */
+/* Force two-column layout to stay equal-width */
+.gradio-container .gradio-row > .gradio-column {
+    flex: 1 1 0 !important;
+    min-width: 0 !important;
+    max-width: 50% !important;
+}
 """
 
 _GLOBAL_JS = """
@@ -1752,7 +1757,7 @@ with gr.Blocks(title="Generate Audio for Video", css=_SLOT_CSS, js=_GLOBAL_JS) a
         # ---------------------------------------------------------- #
         with gr.Tab("TARO"):
             with gr.Row():
-                with gr.Column():
+                with gr.Column(scale=1):
                     taro_video   = gr.Video(label="Input Video")
                     taro_seed    = gr.Number(label="Seed (-1 = random)", value=get_random_seed(), precision=0, elem_id="taro_seed")
                     taro_cfg     = gr.Slider(label="CFG Scale", minimum=1, maximum=15, value=7.5, step=0.5, elem_id="taro_cfg")
@@ -1763,7 +1768,7 @@ with gr.Blocks(title="Generate Audio for Video", css=_SLOT_CSS, js=_GLOBAL_JS) a
                     taro_samples    = gr.Slider(label="Generations", minimum=1, maximum=MAX_SLOTS, value=1, step=1)
                     taro_btn        = gr.Button("Generate", variant="primary")
 
-                with gr.Column():
+                with gr.Column(scale=1):
                     (taro_slot_grps, taro_slot_vids,
                      taro_slot_waves) = _make_output_slots("taro")
 
@@ -1858,7 +1863,7 @@ with gr.Blocks(title="Generate Audio for Video", css=_SLOT_CSS, js=_GLOBAL_JS) a
         # ---------------------------------------------------------- #
         with gr.Tab("MMAudio"):
             with gr.Row():
-                with gr.Column():
+                with gr.Column(scale=1):
                     mma_video    = gr.Video(label="Input Video")
                     mma_prompt   = gr.Textbox(label="Prompt", placeholder="e.g. footsteps on gravel", elem_id="mma_prompt")
                     mma_neg      = gr.Textbox(label="Negative Prompt", placeholder="music, speech", elem_id="mma_neg")
@@ -1870,7 +1875,7 @@ with gr.Blocks(title="Generate Audio for Video", css=_SLOT_CSS, js=_GLOBAL_JS) a
                     mma_samples     = gr.Slider(label="Generations", minimum=1, maximum=MAX_SLOTS, value=1, step=1)
                     mma_btn         = gr.Button("Generate", variant="primary")
 
-                with gr.Column():
+                with gr.Column(scale=1):
                     (mma_slot_grps, mma_slot_vids,
                      mma_slot_waves) = _make_output_slots("mma")
 
@@ -1948,7 +1953,7 @@ with gr.Blocks(title="Generate Audio for Video", css=_SLOT_CSS, js=_GLOBAL_JS) a
         # ---------------------------------------------------------- #
         with gr.Tab("HunyuanFoley"):
             with gr.Row():
-                with gr.Column():
+                with gr.Column(scale=1):
                     hf_video    = gr.Video(label="Input Video")
                     hf_prompt   = gr.Textbox(label="Prompt", placeholder="e.g. rain hitting a metal roof", elem_id="hf_prompt")
                     hf_neg      = gr.Textbox(label="Negative Prompt", value="noisy, harsh", elem_id="hf_neg")
@@ -1961,7 +1966,7 @@ with gr.Blocks(title="Generate Audio for Video", css=_SLOT_CSS, js=_GLOBAL_JS) a
                     hf_samples      = gr.Slider(label="Generations", minimum=1, maximum=MAX_SLOTS, value=1, step=1)
                     hf_btn          = gr.Button("Generate", variant="primary")
 
-                with gr.Column():
+                with gr.Column(scale=1):
                     (hf_slot_grps, hf_slot_vids,
                      hf_slot_waves) = _make_output_slots("hf")