From to merge

index.html

@@ -31,6 +31,16 @@ <h1>Welcome to Geo-Viz</h1>
                     <button class="menu-button" data-map-type="budget">Trip Budget</button>
                 </div>
             </div>
+
+            <div class="selection-controls">
+                <div class="selection-mode">
+                    <span class="mode-label">Select Country</span>
+                    <div class="button-group">
+                        <button id="source-mode" class="mode-button active">Source Country</button>
+                        <button id="destination-mode" class="mode-button">Destination Country</button>
+                    </div>
+                </div>
+            </div>
             <div class="map-controls">
                 <button id="reset-zoom" title="Reset zoom">Reset View</button>
             </div>

main.css

@@ -130,6 +130,7 @@ body {
     justify-content: flex-start;
     align-items: flex-start;
     border-left: 1px solid #ddd;
+    padding-top: 15px;
 }
 
 .info-panel h2 {
@@ -168,15 +169,23 @@ body {
     display: block;
 }
 
-/* Selected country styling */
-.selected-country {
-    stroke: #c629f1;
-    stroke-width: 6px;
+/* Update the source and destination country styles to be more complete */
+.source-country {
+    stroke: #0066cc;
+    stroke-width: 4px;  /* Match the JavaScript value */
     stroke-linejoin: round;
     stroke-linecap: round;
     vector-effect: non-scaling-stroke;
-    fill-rule: evenodd;
 }
+
+.destination-country {
+    stroke: #cc6600; 
+    stroke-width: 4px;  /* Match the JavaScript value */
+    stroke-linejoin: round;
+    stroke-linecap: round;
+    vector-effect: non-scaling-stroke;
+}
+
 .data-section {
     margin-bottom: 15px;
     padding-bottom: 10px;
@@ -212,4 +221,283 @@ body {
 
 #reset-zoom:hover {
     background-color: #f0f0f0;
+}
+
+/* Selection mode buttons */
+.selection-mode {
+    display: flex;
+    align-items: center;
+    margin-left: 15px;
+    gap: 10px;
+}
+
+.mode-button {
+    padding: 8px 15px;
+    margin: 0 5px;
+    border: 2px solid #ccc;
+    background-color: #f8f8f8;
+    border-radius: 5px;
+    cursor: pointer;
+    font-weight: 500;
+    transition: all 0.2s ease-in-out;
+}
+
+.mode-button.active {
+    background: #007bff;
+    color: white;
+    border-color: #0056b3;
+}
+
+.selection-controls {
+    margin: 15px 0;
+    display: flex;
+    justify-content: center;
+}
+
+.selection-mode {
+    display: flex;
+    align-items: center;
+    gap: 10px;
+}
+
+.mode-label {
+    font-weight: 500;
+}
+
+.button-group {
+    display: flex;
+}
+
+.mode-button {
+    padding: 8px 15px;
+    border: 1px solid #ccc;
+    background: #f8f9fa;
+    cursor: pointer;
+    font-weight: 500;
+    transition: all 0.2s ease;
+}
+
+.mode-button:first-child {
+    border-radius: 4px 0 0 4px;
+    border-right: none;
+}
+
+.mode-button:last-child {
+    border-radius: 0 4px 4px 0;
+}
+
+
+
+/* Default state - subtle styling */
+.mode-button:hover {
+    border-color: #999;
+    background-color: #eee;
+}
+
+/* Source button when active */
+.mode-button.source.active {
+    border-color: #0066cc;
+    background-color: rgba(0, 102, 204, 0.1);
+    color: #0066cc;
+    box-shadow: 0 0 0 2px rgba(0, 102, 204, 0.2);
+}
+
+/* Destination button when active */
+.mode-button.destination.active {
+    border-color: #cc6600;
+    background-color: rgba(204, 102, 0, 0.1);
+    color: #cc6600;
+    box-shadow: 0 0 0 2px rgba(204, 102, 0, 0.2);
+}
+
+/* Trip details styling */
+.trip-details {
+    margin-top: 20px;
+    padding: 15px;
+    background-color: #f8f9fa;
+    border-radius: 5px;
+    border-left: 4px solid #007bff;
+}
+
+.carbon-data {
+    font-weight: bold;
+    color: #28a745;
+}
+
+.note {
+    font-style: italic;
+    font-size: 0.9em;
+    color: #6c757d;
+}
+
+/* Loading spinner for API calls */
+.loading-spinner {
+    width: 30px;
+    height: 30px;
+    margin: 10px auto;
+    border: 3px solid #f3f3f3;
+    border-top: 3px solid #007bff;
+    border-radius: 50%;
+    animation: spin 1s linear infinite;
+    display: inline-block;
+}
+
+@keyframes spin {
+    0% { transform: rotate(0deg); }
+    100% { transform: rotate(360deg); }
+}
+
+/* Carbon visualization styles */
+.carbon-visualization {
+    width: 100%;
+    height: 15px;
+    background-color: #f0f0f0;
+    margin: 10px 0;
+    border-radius: 10px;
+    overflow: hidden;
+}
+
+.carbon-bar {
+    height: 100%;
+    background: linear-gradient(to right, #28a745, #ffc107, #dc3545);
+    border-radius: 10px 0 0 10px;
+    transition: width 0.5s ease-in-out;
+}
+
+.carbon-context {
+    font-weight: 500;
+    margin-top: 15px;
+    margin-bottom: 5px;
+}
+
+.carbon-equivalents {
+    margin: 0;
+    padding-left: 20px;
+}
+
+.carbon-equivalents li {
+    margin-bottom: 5px;
+    color: #555;
+}
+
+.carbon-label {
+    font-weight: bold;
+    color: #444;
+    margin-right: 5px;
+}
+
+.carbon-value {
+    font-weight: bold;
+    color: #28a745;
+}
+
+/* Panel selection controls styling */
+.panel-controls {
+    width: 100%;
+    border-bottom: 1px solid #eee;
+    padding-bottom: 15px;
+    margin-bottom: 20px;
+}
+
+.panel-controls .button-group {
+    display: flex;
+    width: 100%;
+}
+
+.panel-controls .mode-button {
+    flex: 1;
+    text-align: center;
+    padding: 10px;
+    border: 1px solid #ddd;
+    background-color: #f8f8f8;
+    transition: all 0.2s ease;
+    font-weight: 500;
+}
+
+.panel-controls .mode-button:first-child {
+    border-radius: 4px 0 0 4px;
+}
+
+.panel-controls .mode-button:last-child {
+    border-radius: 0 4px 4px 0;
+}
+
+/* Keep the specific active styles for source and destination */
+.panel-controls .mode-button.source.active {
+    border-color: #0066cc;
+    background-color: rgba(0, 102, 204, 0.1);
+    color: #0066cc;
+    box-shadow: 0 0 0 2px rgba(0, 102, 204, 0.2);
+}
+
+.panel-controls .mode-button.destination.active {
+    border-color: #cc6600;
+    background-color: rgba(204, 102, 0, 0.1);
+    color: #cc6600;
+    box-shadow: 0 0 0 2px rgba(204, 102, 0, 0.2);
+}
+
+/* Make the right panel more organized */
+.info-panel {
+    display: flex;
+    flex-direction: column;
+    padding-top: 15px;
+}
+
+/* Update the title styling */
+.panel-controls h3 {
+    color: #333;
+    font-size: 1.2rem;
+    margin-bottom: 12px;
+}
+
+/* Add to your CSS file */
+.carbon-budget-title {
+    margin-top: 20px;
+    margin-bottom: 10px;
+    font-weight: 600;
+}
+
+.carbon-budget-comparison {
+    margin: 15px 0;
+}
+
+.budget-bar-container {
+    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
+    overflow: hidden;
+}
+
+.flight-portion {
+    transition: width 0.5s ease-in-out;
+}
+
+.budget-labels {
+    color: #555;
+    font-size: 12px;
+}
+
+.max-trips-info {
+    background-color: #f3f9ff;
+    padding: 10px;
+    border-radius: 4px;
+    margin-top: 12px;
+    border-left: 3px solid #4dabf7;
+}
+
+.carbon-recommendation {
+    font-weight: 500;
+}
+
+.trip-icons {
+    margin: 10px 0 15px 0;
+}
+
+.trip-icon {
+    animation: bounce 1s ease infinite;
+    animation-delay: calc(var(--i, 0) * 0.1s);
+}
+
+@keyframes bounce {
+    0%, 100% { transform: translateY(0); }
+    50% { transform: translateY(-5px); }
 }