Update app.py

app.py

@@ -1031,6 +1031,34 @@ theme = Soft(primary_hue="emerald", neutral_hue="slate", radius_size="lg", spaci
 CSS = """
 .card { border: 1px solid var(--border-color-primary); border-radius: 12px; padding: 14px; background: var(--block-background-fill); }
 .small { font-size: 0.92rem; opacity: 0.95; }
+
+/* --- persistent footer bar --- */
+.footer-bar {
+  position: fixed;
+  left: 0; right: 0; bottom: 0;
+  z-index: 9999;
+  display: flex; align-items: center; gap: .5rem; flex-wrap: wrap;
+  padding: 10px 16px;
+  border-top: 1px solid var(--border-color-primary);
+  background: rgba(17, 24, 39, 0.85);   /* slate-ish, semi-transparent */
+  color: white;
+  backdrop-filter: blur(6px);
+  -webkit-backdrop-filter: blur(6px);
+  font-size: 0.9rem;
+}
+.footer-bar a { color: #a7f3d0; text-decoration: none; }
+.footer-bar a:hover { text-decoration: underline; }
+
+/* Spacer to prevent content being hidden behind the fixed footer */
+.footer-spacer { height: 56px; }
+
+@media (max-width: 640px){
+  .footer-bar { font-size: .82rem; padding: 8px 12px; }
+  .footer-spacer { height: 48px; }
+}
+@media print {
+  .footer-bar, .footer-spacer { display: none !important; }
+}
 """
 
 def allowed_species_choices():
@@ -1141,17 +1169,17 @@ with gr.Blocks(title="Algae Yield Predictor", theme=theme, css=CSS) as demo:
         outputs=doi_md
     )
 
-    # ---- Credits / Copyright footer ----
-    with gr.Row():
-        gr.Markdown(
-            "----\n"
-            "**Credits**  \n"
-            "Developed by **Ashutosh Tiwari (Lead)**, with contributions from **Siddhant Dubey** and **Yamini Sumathi**.  \n\n"
-            "**Copyright**  \n"
-            "© 2025 Ashutosh Tiwari and collaborators. All rights reserved.\n",
-            elem_classes=["small"]
-        )
+    # ---- Persistent bottom bar ----
+    gr.HTML("<div class='footer-spacer'></div>")
+    gr.HTML("""
+    <div class="footer-bar">
+      <strong>Algae Yield Predictor</strong>
+      &nbsp;·&nbsp; Developed by <b>Ashutosh Tiwari (Lead)</b> with contributions from
+      <span>Siddhant Dubey</span> &amp; <span>Yamini Sumathi</span>.
+      &nbsp;© 2025. All rights reserved.
+    </div>
+    """)
 
 # Spaces auto-runs this
 if __name__ == "__main__":
-    demo.launch()
+    demo.launch()