* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  html,
  body {
    height: 100%;
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
  }
  
  /* Header Section */
  #header {
    background: white;
    padding: 5px 12px;
    border-bottom: 1px solid #ddd;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
  }
  
  .logo {
    display: flex;
    align-items: center;
    gap: 12px;
  }
  
  .logo img {
    height: 35px;
    width: auto;
  }
  
  .header-title {
    font-size: 18px;
    font-weight: bold;
    color: #333;
    margin: 0;
  }
  
   .header-right {
    display: flex;
    align-items: center;
    gap: 12px;
  }
  
  .nav-links {
    display: flex;
    gap: 20px;
  }
  
  .nav-link {
    color: #0066cc;
    text-decoration: none;
    font-size: 12px;
    padding: 8px 16px;
    border-radius: 4px;
    transition: background-color 0.3s, color 0.3s;
  }
  
  .nav-link:hover {
    background-color: #f0f0f0;
  }
  
  .nav-link.active {
    background-color: #0066cc;
    color: white;
    font-weight: bold;
  }
  
  .nav-link.active:hover {
    background-color: #0052a3;
  }
  
  /* Export button in header */
  #export-button {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    border-radius: 4px;
    border: 1px solid #ddd;
    background: #f8f8f8;
    color: #333;
    font-size: 11px;
    cursor: pointer;
    transition: background-color 0.2s, box-shadow 0.2s, border-color 0.2s;
  }
  
  #export-button:hover {
    background: #ffffff;
    box-shadow: 0 1px 3px rgba(0,0,0,0.15);
    border-color: #ccc;
  }
  
  .export-icon {
    font-size: 13px;
    line-height: 1;
  }
  
  .export-label {
    text-transform: uppercase;
    letter-spacing: 0.04em;
  }
  
  /* Map Container - Full screen except header */
  #map-container {
    position: relative;
    width: 100%;
    height: calc(100vh - 48px);
  }
  
  #viewDiv {
    width: 100%;
    height: 100%;
  }
  
  /* Affordability Map Container */
  #affordability-map-container {
    position: relative;
    width: 100%;
    height: 100%;
  }
  
  #affordabilityViewDiv {
    width: 100%;
    height: 100%;
  }
  
  /* PIT/HIC Map Container */
  #pit-hic-map-container {
    position: relative;
    width: 100%;
    height: 100%;
  }
  
  #pitHicViewDiv {
    width: 100%;
    height: 100%;
  }
  
  /* Tabs Section - Floating on map */
  #tabs {
    position: absolute;
    top: 15px;
    left: 60px;
    /* transform: translateX(-50%); */
    background: white;
    padding: 2px;
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    display: flex;
    gap: 5px;
    z-index: 50;
  }
  
  .tab {
    padding: 6px 12px;
    background: #f5f5f5;
    border: 1px solid #ddd;
    cursor: pointer;
    border-radius: 4px;
    font-size: 12px;
    color: #666;
    white-space: nowrap;
  }
  
  .tab.active {
    background: #0066cc;
    color: white;
    font-weight: bold;
    border-color: #0066cc;
  }
  
  .tab:hover {
    background: #e8e8e8;
  }
  
  .tab.active:hover {
    background: #0052a3;
  }
  
  /* Filter Panel - Floating on right */
  #filter-panel {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 180px;
    max-height: calc(100vh - 360px);
    background: white;
    border: 1px solid #ddd;
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    padding: 10px;
    overflow-y: auto;
    z-index: 50;
  }
  
  .filter-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
    font-weight: bold;
    font-size: 12px;
  }
  
  .search-icon {
    width: 16px;
    height: 16px;
    cursor: pointer;
  }
  
  .filter-item {
    display: flex;
    align-items: center;
    margin-bottom: 6px;
  }
  
  .filter-item input[type="checkbox"] {
    margin-right: 6px;
    width: 11px;
    height: 11px;
    cursor: pointer;
  }
  
  .filter-item label {
    cursor: pointer;
    font-size: 11px;
    color: #333;
    line-height: 1.3;
  }
  
  /* Charts Section - Floating at bottom */
  #charts-section {
    position: absolute;
    bottom: 35px;
    left: 15px;
    right: 15px;
    height: 200px;
    display: flex;
    gap: 10px;
    z-index: 10;
  }
  
  .chart-panel {
    flex: 1;
    background: white;
    border: 1px solid #ddd;
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    padding: 0px 10px 5px 10px;
    position: relative;
  }
  
  .chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 5px;
    margin-top: 5px;
  }
  
  .chart-title {
    font-weight: bold;
    font-size: 14px;
  }
  
  .chart-options {
    width: 20px;
    height: 20px;
    cursor: pointer;
    opacity: 0.5;
  }
  
  .chart-content {
    height: calc(100% - 20px);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #999;
    font-size: 12px;
  }
  
  .pie-chart-panel .chart-content {
    height: 100%;
  }
  
  /* Ensure canvases have proper dimensions */
  #pieChartCanvas,
  #histogramCanvas,
  #costHistogramCanvas,
  #pitHicHistogramCanvas,
  #pitHicHistogram2Canvas {
    width: 100% !important;
    height: 100% !important;
    max-height: 100%;
  }
  
  /* Ensure map popup appears above all floating widgets */
  .esri-view .esri-ui {
    z-index: 100 !important;
  }
  
  .esri-popup,
  .esri-popup__main-container {
    z-index: 100 !important;
  }
  
  /* Tab Content Containers */
  .tab-content {
    display: none;
    width: 100%;
    height: calc(100vh - 48px);
  }
  
  .tab-content.active {
    display: block;
  }
  
  /* Blank Page Style */
  .blank-page {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #f9f9f9;
  }
  
  .blank-page p {
    color: #999;
    font-size: 16px;
    font-style: italic;
  }
  
  /* Export modal */
  .export-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.35);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1010;
  }
  
  .export-modal-overlay.visible {
    display: flex;
  }
  
  .export-modal {
    background: #fff;
    border-radius: 6px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
    width: 520px;
    max-width: 95vw;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    padding: 14px 18px 16px 18px;
  }
  
  .export-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
  }
  
  .export-modal-header h2 {
    font-size: 16px;
    font-weight: 600;
    color: #333;
  }
  
  .export-modal-close {
    border: none;
    background: transparent;
    font-size: 18px;
    cursor: pointer;
    color: #666;
  }
  
  .export-modal-body {
    overflow-y: auto;
    padding-right: 4px;
  }
  
  .export-field-group {
    margin-bottom: 12px;
  }
  
  .export-label {
    display: block;
    font-weight: 600;
    font-size: 12px;
    color: #333;
    margin-bottom: 6px;
  }
  
  .export-radio-group {
    display: flex;
    gap: 16px;
    font-size: 12px;
    color: #333;
  }
  
  .export-radio-group label {
    display: flex;
    align-items: center;
    gap: 4px;
  }
  
  .export-checkbox-column {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: 12px;
    color: #333;
  }
  
  .export-checkbox-column label {
    display: flex;
    align-items: flex-start;
    gap: 6px;
  }
  
  .export-checkbox-column input[type="checkbox"] {
    margin-top: 2px;
  }
  
  .export-help-text {
    font-size: 12px;
    color: #555;
    line-height: 1.4;
  }
  
  .export-modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    margin-top: 12px;
  }
  
  .export-primary-button,
  .export-secondary-button {
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 12px;
    cursor: pointer;
  }
  
  .export-primary-button {
    border: 1px solid #0066cc;
    background: #0066cc;
    color: #fff;
  }
  
  .export-primary-button:hover {
    background: #0052a3;
    border-color: #0052a3;
  }
  
  .export-secondary-button {
    border: 1px solid #ddd;
    background: #f8f8f8;
    color: #333;
  }
  
  .export-secondary-button:hover {
    background: #ffffff;
  }
  
  .export-hidden {
    display: none;
  }