fix: make primary button white text and standardize generate labels

app.py

@@ -325,22 +325,25 @@ ul.options, .gr-dropdown-options {
 
 /* Buttons */
 .gr-button-primary {
-    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%) !important;
+    background: #6366f1 !important; /* purple */
     border: none !important;
     color: #ffffff !important;
     font-weight: 600 !important;
     box-shadow: 0 6px 14px rgba(79, 70, 229, 0.25) !important;
 }
+.gr-button-primary * {
+    color: #ffffff !important;
+}
 
 .gr-button-secondary {
-    background: #64748b !important;
-    border: 1px solid #64748b !important;
-    color: #ffffff !important;
+    background: #e2e8f0 !important;
+    border: 1px solid #cbd5e1 !important;
+    color: #0f172a !important;
     box-shadow: 0 4px 10px rgba(15, 23, 42, 0.08) !important;
 }
 .gr-button-secondary:hover {
-    background: #475569 !important;
-    border-color: #475569 !important;
+    background: #dbe3ef !important;
+    border-color: #94a3b8 !important;
 }
 
 /* Tabs */
@@ -407,8 +410,8 @@ with gr.Blocks(title="UltraData-Math L3 Generator", css=custom_css, theme=gr.the
                             info="Select the target audience level"
                         )
                         with gr.Row():
-                            qa_example_btn = gr.Button("Generate", variant="secondary")
-                            qa_btn = gr.Button("🚀 Generate Q&A", variant="primary")
+                            qa_example_btn = gr.Button("Load Example", variant="secondary")
+                            qa_btn = gr.Button("Generate", variant="primary")
                     
                     with gr.Column(scale=1):
                         qa_problem = gr.Textbox(label="Generated Problem", lines=5, show_copy_button=True)
@@ -443,8 +446,8 @@ with gr.Blocks(title="UltraData-Math L3 Generator", css=custom_css, theme=gr.the
                             info="Choose the persona and tone of the conversation"
                         )
                         with gr.Row():
-                            conv_example_btn = gr.Button("Generate", variant="secondary")
-                            conv_btn = gr.Button("🚀 Generate Conversation", variant="primary")
+                            conv_example_btn = gr.Button("Load Example", variant="secondary")
+                            conv_btn = gr.Button("Generate", variant="primary")
                     
                     with gr.Column(scale=1):
                         conv_output = gr.Textbox(label="Generated Conversation", lines=20, show_copy_button=True)
@@ -478,8 +481,8 @@ with gr.Blocks(title="UltraData-Math L3 Generator", css=custom_css, theme=gr.the
                             info="Select the desired output style"
                         )
                         with gr.Row():
-                            rewrite_example_btn = gr.Button("Generate", variant="secondary")
-                            rewrite_btn = gr.Button("🚀 Rewrite Content", variant="primary")
+                            rewrite_example_btn = gr.Button("Load Example", variant="secondary")
+                            rewrite_btn = gr.Button("Generate", variant="primary")
                     
                     with gr.Column(scale=1):
                         rewrite_output = gr.Textbox(label="Rewritten Content", lines=20, show_copy_button=True)
@@ -507,8 +510,8 @@ with gr.Blocks(title="UltraData-Math L3 Generator", css=custom_css, theme=gr.the
                             lines=12,
                         )
                         with gr.Row():
-                            know_example_btn = gr.Button("Generate", variant="secondary")
-                            know_btn = gr.Button("🚀 Extract Knowledge", variant="primary")
+                            know_example_btn = gr.Button("Load Example", variant="secondary")
+                            know_btn = gr.Button("Generate", variant="primary")
                     
                     with gr.Column(scale=1):
                         know_output = gr.Textbox(label="Extracted Knowledge Points", lines=20, show_copy_button=True)
@@ -542,8 +545,8 @@ with gr.Blocks(title="UltraData-Math L3 Generator", css=custom_css, theme=gr.the
                             info="Select the problem difficulty"
                         )
                         with gr.Row():
-                            textbook_example_btn = gr.Button("Generate", variant="secondary")
-                            textbook_btn = gr.Button("🚀 Generate Exercise", variant="primary")
+                            textbook_example_btn = gr.Button("Load Example", variant="secondary")
+                            textbook_btn = gr.Button("Generate", variant="primary")
                     
                     with gr.Column(scale=1):
                         textbook_output = gr.Textbox(label="Generated Exercise Material", lines=20, show_copy_button=True)