diff --git a/Frontend/Analysis/analysis.css b/Frontend/Analysis/analysis.css
index a628a76..ef9de96 100644
--- a/Frontend/Analysis/analysis.css
+++ b/Frontend/Analysis/analysis.css
@@ -1120,6 +1120,32 @@ button:hover {
   border: 1px solid rgba(56, 189, 248, 0.3) !important;
 }
 
+.leaflet-popup-content {
+  margin: 14px 16px !important;
+  min-width: 230px;
+}
+
+.climate-map-popup {
+  color: var(--text-primary);
+  font-family: "Poppins", sans-serif !important;
+}
+
+.climate-map-popup h4 {
+  margin: 0 0 10px;
+  color: var(--text-primary);
+  font-size: 1rem;
+  line-height: 1.25;
+}
+
+.climate-map-popup p {
+  margin: 0;
+  color: var(--text-primary);
+  font-size: 0.88rem;
+  font-weight: 600;
+  line-height: 1.65;
+  white-space: nowrap;
+}
+
 /* MULTI-RISK GRID (5 CARDS) */
 .risk-grid-five {
   display: grid;
@@ -1896,4 +1922,4 @@ select:focus-visible,
 a:focus-visible {
     outline: 3px solid #38bdf8 !important;
     outline-offset: 2px !important;
-}
\ No newline at end of file
+}
diff --git a/Frontend/Analysis/analysis.js b/Frontend/Analysis/analysis.js
index 5dfa76a..5f345d4 100644
--- a/Frontend/Analysis/analysis.js
+++ b/Frontend/Analysis/analysis.js
@@ -442,9 +442,9 @@ async function getWeatherData() {
     mapMarker
       .bindPopup(
         `
-            <div style="min-width: 160px; font-family: sans-serif;">
-                <h4 style="margin: 0 0 5px 0; color: #fff;">${data.location.city}</h4>
-                <p style="margin: 0; font-size: 0.8rem; line-height: 1.4; color: #cbd5e1;">
+            <div class="climate-map-popup" style="min-width: 230px; font-family: sans-serif;">
+                <h4>${data.location.city}</h4>
+                <p>
                     🌡️ Temp: ${data.weather.temperature} °C<br>
                     🌊 Flood Risk: ${data.risks.flood_risk}<br>
                     🔥 Heat Risk: ${data.risks.heat_risk}<br>
diff --git a/backend/alertsystem.py b/backend/alertsystem.py
index bde3472..2959e9f 100644
--- a/backend/alertsystem.py
+++ b/backend/alertsystem.py
@@ -215,14 +215,14 @@ def get_weather_insights():
                 "message": "Please fill all fields."
             }), 400
 
-        api_key = os.environ.get("OPENWEATHER_API_KEY")
+        api_key = os.environ.get("OPENWEATHER_API_KEY", "").strip()
 
-        if not api_key:
+        if not api_key or api_key.lower() in {"your_api_key_here", "your_openweather_api_key_here"}:
             print("OPENWEATHER_API_KEY missing")
 
             return jsonify({
                 "success": False,
-                "message": "Weather service configuration error."
+                "message": "Weather service configuration error. Create a .env file with OPENWEATHER_API_KEY."
             }), 500
 
 # ----------------------------------------------------
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..41daf66
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,5 @@
+Flask
+flask-cors
+requests
+python-dotenv
+gunicorn