show both models at the same time

hub/services/static/css/roi-calculator.css

@@ -352,4 +352,147 @@
         padding: 0.75rem;
         margin-bottom: 0.75rem;
     }
+}
+
+/* Clean Dual Model Layout */
+.model-comparison-indicator {
+    font-size: 1.2rem;
+    color: #6c757d;
+}
+
+/* Scenario selection enhancements */
+.form-check {
+    margin-bottom: 0.25rem;
+}
+
+.form-check-label {
+    cursor: pointer;
+    user-select: none;
+}
+
+.form-check-input:checked {
+    background-color: #0d6efd;
+    border-color: #0d6efd;
+}
+
+/* Model result boxes */
+.model-result-box {
+    transition: all 0.2s ease;
+    background: #fafafa;
+}
+
+.model-result-box:hover {
+    background: #f0f0f0;
+    transform: translateY(-1px);
+    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
+}
+
+/* Model comparison box */
+.model-comparison-box {
+    border: 1px solid #dee2e6;
+    transition: all 0.2s ease;
+}
+
+.model-comparison-box:hover {
+    border-color: #adb5bd;
+    background-color: #f8f9fa !important;
+}
+
+/* Control section styling */
+.controls-section {
+    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
+    border-radius: 8px;
+    padding: 1rem;
+}
+
+/* Enhanced form controls */
+.form-range {
+    height: 4px;
+    margin-top: 0.5rem;
+}
+
+.form-range::-webkit-slider-thumb {
+    background: #0d6efd;
+    border: 2px solid #fff;
+    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
+}
+
+.form-range::-moz-range-thumb {
+    background: #0d6efd;
+    border: 2px solid #fff;
+    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
+}
+
+/* Button group styling */
+.btn-group-enhanced .btn {
+    border-radius: 4px;
+    margin-right: 0.25rem;
+}
+
+.btn-group-enhanced .btn:last-child {
+    margin-right: 0;
+}
+
+/* Responsive adjustments */
+@media (max-width: 768px) {
+    .controls-section {
+        padding: 0.75rem;
+    }
+    
+    .model-result-box {
+        margin-bottom: 1rem;
+    }
+}
+
+/* Enhanced table styling for financial analysis */
+.table-hover tbody tr:hover {
+    background-color: rgba(0, 0, 0, 0.05);
+}
+
+.table-success {
+    --bs-table-bg: rgba(40, 167, 69, 0.1);
+}
+
+.table-warning {
+    --bs-table-bg: rgba(255, 193, 7, 0.1);
+}
+
+/* Tab styling improvements */
+.nav-tabs .nav-link {
+    border: 1px solid transparent;
+    border-top-left-radius: 0.375rem;
+    border-top-right-radius: 0.375rem;
+}
+
+.nav-tabs .nav-link.active {
+    color: #495057;
+    background-color: #fff;
+    border-color: #dee2e6 #dee2e6 #fff;
+}
+
+.nav-tabs .nav-link:hover:not(.active) {
+    border-color: #e9ecef #e9ecef #dee2e6;
+    isolation: isolate;
+}
+
+/* Table cell improvements */
+.table td {
+    vertical-align: middle;
+}
+
+.table th {
+    border-top: none;
+    font-weight: 600;
+    font-size: 0.875rem;
+}
+
+/* Better responsive tables */
+@media (max-width: 768px) {
+    .table-responsive {
+        font-size: 0.8rem;
+    }
+    
+    .table th, .table td {
+        padding: 0.5rem 0.25rem;
+    }
 }