Improve plotly visualization sizing and rendering with CDN and proper styling

app.py

@@ -292,21 +292,33 @@ def smiles_to_molecular_orbitals(smiles_input: str, name_input: str) -> str:
                 
                 fig.update_layout(
                     title=f'{label} Orbital',
+                    width=800,
+                    height=600,
                     scene=dict(
-                        xaxis_title='X',
-                        yaxis_title='Y',
-                        zaxis_title='Z'
-                    )
+                        xaxis_title='X (Å)',
+                        yaxis_title='Y (Å)',
+                        zaxis_title='Z (Å)',
+                        aspectmode='data'
+                    ),
+                    margin=dict(l=0, r=0, t=40, b=0)
                 )
                 
-                # Generate HTML
+                # Generate HTML with config
                 import plotly.io as pio
-                html_sections.append(f"<h3>{label}</h3>" + pio.to_html(fig, full_html=False))
+                config = {
+                    'displayModeBar': True,
+                    'displaylogo': False,
+                    'modeBarButtonsToRemove': ['toImage']
+                }
+                plot_html = pio.to_html(fig, full_html=False, include_plotlyjs='cdn', config=config)
+                html_sections.append(f"<div style='margin: 20px 0;'><h3>{label}</h3>{plot_html}</div>")
 
             if not html_sections:
                 return "<p>Could not prepare HOMO/LUMO visualizations.</p>"
 
-            return "".join(html_sections)
+            # Wrap in a container div with proper styling
+            result_html = "<div style='width: 100%; max-width: 1200px;'>" + "".join(html_sections) + "</div>"
+            return result_html
         except Exception as exc:  # pragma: no cover - runtime heavy
             return f"<p>Unable to compute molecular orbitals: {exc}</p>"
         finally:

force_rebuild.txt

@@ -1,2 +1,2 @@
 # Force rebuild
-2025-11-08 v7
+2025-11-08 v8