Login credentials table + theme-consistent maps

app.py

@@ -69,7 +69,7 @@ def require_login():
     st.markdown(
         "<div style='background:linear-gradient(135deg,#7C3AED,#EC4899);"
         "border-radius:18px;padding:26px 30px;color:#fff;margin-bottom:20px;'>"
-        "<div style='font-size:2rem;font-weight:600;'>दृष्टि — DRISHTI</div>"
+        "<div style='font-size:2rem;font-weight:800;'>दृष्टि — DRISHTI</div>"
         "<div style='opacity:0.92;margin-top:4px;'>Digital Real-time Intelligence for "
         "Smart Hotspot &amp; Traffic Insights · हर सड़क पर नज़र, हर सफ़र आसान</div></div>",
         unsafe_allow_html=True)
@@ -85,7 +85,10 @@ def require_login():
             st.query_params["auth"] = "1"
             st.rerun()
         st.error("Invalid username or password.")
-    st.info("**Demo login** → `admin` / `admin123`  ·  `officer` / `officer123`")
+    st.caption("Demo credentials — sign in with either account:")
+    st.table(pd.DataFrame(
+        {"USERNAME": ["admin", "officer"], "PASSWORD": ["admin123", "officer123"]}
+    ).set_index("USERNAME"))
     st.stop()
 
 # sidebar starts open so the nav is always visible
@@ -573,7 +576,7 @@ if section == "tab_map":
             unsafe_allow_html=True)
     layer = pdk.Layer("H3HexagonLayer", view, pickable=True, filled=True, extruded=True,
                       get_hexagon="h3", get_fill_color="fill",
-                      get_elevation="cii", elevation_scale=8, opacity=0.55)
+                      get_elevation="cii", elevation_scale=8, opacity=0.7)
     st.pydeck_chart(pdk.Deck(
         layers=[layer],
         initial_view_state=pdk.ViewState(latitude=12.97, longitude=77.59, zoom=11, pitch=45),
@@ -591,7 +594,7 @@ if section == "tab_map":
                       "fontFamily": "Plus Jakarta Sans, sans-serif",
                       "border": "1px solid rgba(139,92,246,0.45)",
                       "boxShadow": "0 8px 26px rgba(0,0,0,0.4)"}},
-    ), use_container_width=True, height=560)
+    ), use_container_width=True, height=560, key=f"impactmap_{THEME}")
 
 elif section == "tab_ops":
     st.subheader("🚨 Live operations — congestion alerts & enforcement")
@@ -878,7 +881,7 @@ elif section == "tab_fc":
         initial_view_state=pdk.ViewState(latitude=12.97, longitude=77.59, zoom=11, pitch=0),
         map_style=MAP_STYLE,
         tooltip={"html": "Risk #{risk_rank} · {pred_intensity}<br/>{location}"},
-    ), use_container_width=True, height=520)
+    ), use_container_width=True, height=520, key=f"fcmap_{THEME}")
     st.dataframe(topf[["risk_rank", "location", "junction_name",
                        "pred_intensity", "cii"]].rename(columns={
         "risk_rank": "Risk rank", "location": "Location", "junction_name": "Nearest junction",
@@ -925,7 +928,7 @@ elif section == "tab_patrol":
             map_style=MAP_STYLE,
             tooltip={"html": "<b>{location}</b><br/>pred {pred_intensity} · "
                              "{units} unit(s)<br/>{shift}"}),
-            use_container_width=True, height=420)
+            use_container_width=True, height=420, key=f"patrolmap_{THEME}")
 
         brief = view.copy()
         brief["order"] = range(1, len(brief) + 1)
@@ -1038,7 +1041,7 @@ elif section == "tab_event":
             initial_view_state=pdk.ViewState(latitude=vlat, longitude=vlon, zoom=13, pitch=0),
             map_style=MAP_STYLE,
             tooltip={"html": "<b>{location}</b><br/>CII {cii} → surge {surge_cii} (+{delta})"}),
-            use_container_width=True, height=440)
+            use_container_width=True, height=440, key=f"eventmap_{THEME}")
 
         show = surge[["location", "junction_name", "cii", "surge_cii", "delta",
                       "n_violations"]].rename(columns={