Update app.py

app.py

@@ -63,9 +63,9 @@ css = """
 /* Global Overrides */
 .gradio-container {
     background: var(--surface-0) !important;
-    max-width: 1200px !important;
+    max-width: 1800px !important;
     margin: 0 auto !important;
-    padding: 0 24px !important;
+    padding: 0 32px !important;
 }
 
 .main {
@@ -87,7 +87,7 @@ css = """
     padding: 48px 20px 36px;
     border-bottom: 1px solid var(--border);
     margin-bottom: 32px;
-    max-width: 1100px;
+    max-width: 1800px;
     margin-left: auto;
     margin-right: auto;
 }
@@ -234,12 +234,12 @@ input[type="range"] {
 .previewer-container {
     position: relative;
     width: 100%;
-    height: 650px;
+    height: 720px;
     display: flex;
     flex-direction: column;
     align-items: center;
     justify-content: center;
-    padding: 20px;
+    padding: 24px;
     background: radial-gradient(ellipse at center, var(--surface-2) 0%, var(--surface-1) 100%);
     border-radius: var(--radius);
 }
@@ -384,14 +384,14 @@ input[type="range"] {
     padding: 20px;
     border-top: 1px solid var(--border);
     margin-top: 32px;
-    max-width: 1100px;
+    max-width: 1800px;
     margin-left: auto;
     margin-right: auto;
 }
 
 /* Main Layout */
 .main-row {
-    max-width: 1100px;
+    max-width: 1800px;
     margin: 0 auto !important;
     width: 100%;
 }
@@ -653,8 +653,8 @@ with gr.Blocks(css=css, head=head, theme=gr.themes.Base(primary_hue="indigo"), d
     """)
     
     with gr.Row(equal_height=True, elem_classes=["main-row"]):
-        # Left Panel — Controls
-        with gr.Column(scale=1, min_width=280):
+        # Left Panel — Input (span 1)
+        with gr.Column(scale=1, min_width=320):
             
             # Image Upload
             image_prompt = gr.Image(
@@ -662,14 +662,14 @@ with gr.Blocks(css=css, head=head, theme=gr.themes.Base(primary_hue="indigo"), d
                 format="png",
                 image_mode="RGBA",
                 type="pil",
-                height=320,
+                height=400,
                 elem_classes=["upload-zone"]
             )
             
             # Generate Button
             generate_btn = gr.Button("Generate 3D", variant="primary", elem_classes=["primary-btn"], size="lg")
 
-        # Right Panel — Preview
+        # Right Panel — Preview (span 2)
         with gr.Column(scale=2):
             with gr.Walkthrough(selected=0) as walkthrough:
                 with gr.Step("Preview", id=0):
@@ -679,7 +679,7 @@ with gr.Blocks(css=css, head=head, theme=gr.themes.Base(primary_hue="indigo"), d
                 with gr.Step("Export", id=1):
                     glb_output = gr.Model3D(
                         label="GLB Model",
-                        height=580,
+                        height=640,
                         show_label=False,
                         display_mode="solid",
                         clear_color=(0.06, 0.06, 0.07, 1.0)