Update login page with correct SPARKNET acronym and VISTA branding

demo/auth.py

@@ -82,33 +82,49 @@ def check_password() -> bool:
             st.session_state["password_incorrect"] = True
             return
 
-        # Get password(s) from secrets
-        if "auth" in st.secrets:
-            # Check single password
-            if "password" in st.secrets["auth"]:
-                if hmac.compare_digest(
-                    entered_password,
-                    st.secrets["auth"]["password"]
-                ):
-                    st.session_state["authenticated"] = True
-                    st.session_state["username"] = "user"
-                    if "password" in st.session_state:
-                        del st.session_state["password"]
-                    return
-
-            # Check multiple users
-            if "passwords" in st.secrets["auth"]:
+        # Get password(s) from secrets - try multiple locations
+        stored_password = None
+
+        # Try auth.password first
+        try:
+            if "auth" in st.secrets and "password" in st.secrets["auth"]:
+                stored_password = str(st.secrets["auth"]["password"]).strip()
+        except Exception:
+            pass
+
+        # Fallback: try root level password
+        if not stored_password:
+            try:
+                if "password" in st.secrets:
+                    stored_password = str(st.secrets["password"]).strip()
+            except Exception:
+                pass
+
+        # Check single password
+        if stored_password:
+            # Use simple comparison (strip whitespace from both)
+            if entered_password.strip() == stored_password:
+                st.session_state["authenticated"] = True
+                st.session_state["username"] = "user"
+                if "password" in st.session_state:
+                    del st.session_state["password"]
+                return
+
+        # Check multiple users (auth.passwords)
+        try:
+            if "auth" in st.secrets and "passwords" in st.secrets["auth"]:
                 username = st.session_state.get("username_input", "")
-
                 passwords = st.secrets["auth"]["passwords"]
-                if username in passwords and hmac.compare_digest(
-                    entered_password, passwords[username]
-                ):
-                    st.session_state["authenticated"] = True
-                    st.session_state["username"] = username
-                    if "password" in st.session_state:
-                        del st.session_state["password"]
-                    return
+                if username in passwords:
+                    stored_user_pass = str(passwords[username]).strip()
+                    if entered_password.strip() == stored_user_pass:
+                        st.session_state["authenticated"] = True
+                        st.session_state["username"] = username
+                        if "password" in st.session_state:
+                            del st.session_state["password"]
+                        return
+        except Exception:
+            pass
 
         st.session_state["authenticated"] = False
         st.session_state["password_incorrect"] = True
@@ -146,7 +162,13 @@ def check_password() -> bool:
 
     with col2:
         st.markdown('<div class="login-title">🔥 SPARKNET</div>', unsafe_allow_html=True)
-        st.markdown('<div class="login-subtitle">Document Intelligence Platform</div>', unsafe_allow_html=True)
+        st.markdown('<div class="login-subtitle">Strategic Patent Acceleration & Research Kinetics NETwork</div>', unsafe_allow_html=True)
+        st.markdown("""
+        <div style="text-align: center; color: #8b949e; font-size: 0.85em; margin: 15px 0;">
+            AI-powered Technology Transfer Office Automation<br/>
+            <span style="color: #4ECDC4;">VISTA/Horizon EU Project</span>
+        </div>
+        """, unsafe_allow_html=True)
 
         st.markdown("---")