:root {
  --bg-ivory: #FAF9F6;
  --bg-card: #FFFFFF;
  --bg-subtle: #F1F5F2;
  --brand-forest: #1B4332;
  --brand-emerald: #2D6A4F;
  --brand-sage: #52B788;
  --brand-mint: #D8F3DC;
  --accent-terracotta: #B9381B;
  --accent-terracotta-bg: #FEF2F2;
  --accent-cobalt: #1A56DB;
  --accent-cobalt-bg: #EFF6FF;
  --accent-amber: #B45309;
  --accent-amber-bg: #FFFBEB;
  --text-primary: #0F172A;
  --text-secondary: #334155;
  --text-muted: #64748B;
  --border-color: #E2E8F0;
  --border-strong: #CBD5E1;
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 4px 12px rgba(27, 67, 50, 0.08);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
}

*, *::before, *::after {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  background-color: var(--bg-ivory);
  color: var(--text-primary);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Header & Navigation */
.app-header {
  background: linear-gradient(135deg, var(--brand-forest) 0%, #122E22 100%);
  color: #FFFFFF;
  border-bottom: 3px solid var(--brand-sage);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
}

.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.brand-block {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 9px;
  background: var(--brand-sage);
  color: var(--brand-forest);
  font-weight: 800;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  letter-spacing: -0.5px;
  flex-shrink: 0;
}

.brand-title {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.3px;
  color: #FFFFFF;
}

.brand-subtitle {
  margin: 2px 0 0 0;
  font-size: 12px;
  color: var(--brand-mint);
  opacity: 0.92;
}

.header-badges {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.header-pill {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(216, 243, 220, 0.3);
  color: #FFFFFF;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 11.5px;
  font-weight: 600;
  white-space: nowrap;
}

.header-pill.pill-accent {
  background: var(--brand-sage);
  color: #0B2218;
  border-color: var(--brand-sage);
}

.header-link-btn {
  background: rgba(255, 255, 255, 0.16);
  color: #FFFFFF;
  text-decoration: none;
  padding: 5px 11px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 600;
  border: 1px solid rgba(255, 255, 255, 0.28);
  transition: background 0.15s ease;
}

.header-link-btn:hover {
  background: rgba(255, 255, 255, 0.26);
}

/* Primary Navigation Tabs */
.nav-bar {
  background: #153527;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.nav-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.nav-tab {
  appearance: none;
  background: transparent;
  border: none;
  border-bottom: 3px solid transparent;
  color: rgba(255, 255, 255, 0.78);
  padding: 11px 15px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: color 0.15s ease, background 0.15s ease, border-color 0.15s ease;
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.nav-tab:hover {
  color: #FFFFFF;
  background: rgba(255, 255, 255, 0.06);
}

.nav-tab[aria-selected="true"] {
  color: #FFFFFF;
  border-bottom-color: var(--brand-sage);
  background: rgba(82, 183, 136, 0.14);
}

.nav-tab:focus-visible,
button:focus-visible,
select:focus-visible,
input:focus-visible,
a:focus-visible {
  outline: 2px solid var(--brand-sage);
  outline-offset: 2px;
}

/* Main Container */
.main-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 20px;
}

.view-panel {
  display: none;
}

.view-panel.active {
  display: block;
}

/* Epistemic Status Tags */
.etag {
  display: inline-flex;
  align-items: center;
  padding: 2px 7px;
  border-radius: 4px;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.3px;
  text-transform: uppercase;
  white-space: nowrap;
}

.etag-fact {
  background: #DCFCE7;
  color: #166534;
  border: 1px solid #86EFAC;
}

.etag-calc {
  background: #DBEAFE;
  color: #1E40AF;
  border: 1px solid #93C5FD;
}

.etag-hyp {
  background: #FEF3C7;
  color: #92400E;
  border: 1px solid #FDE68A;
}

.etag-interp {
  background: #F3E8FF;
  color: #6B21A8;
  border: 1px solid #D8B4FE;
}

.etag-rec {
  background: #FEE2E2;
  color: #991B1B;
  border: 1px solid #FCA5A5;
}

/* Cards & Grids */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 14px;
  margin-bottom: 20px;
}

.kpi-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-top: 3px solid var(--brand-forest);
  border-radius: var(--radius-md);
  padding: 15px 16px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.kpi-card.kpi-highlight {
  border-top-color: var(--accent-terracotta);
}

.kpi-card.kpi-cobalt {
  border-top-color: var(--accent-cobalt);
}

.kpi-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.kpi-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
}

.kpi-value {
  font-size: 25px;
  font-weight: 800;
  color: var(--text-primary);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.5px;
}

.kpi-sub {
  font-size: 12px;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}

.section-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
}

.section-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-color);
}

.section-title {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--brand-forest);
  display: flex;
  align-items: center;
  gap: 8px;
}

.section-desc {
  margin: 2px 0 0 0;
  font-size: 12.5px;
  color: var(--text-muted);
}

.grid-2col {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 18px;
  margin-bottom: 20px;
}

.grid-explorer {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 18px;
  margin-bottom: 20px;
}

/* Filter Toolbar */
.filter-bar {
  background: var(--bg-subtle);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  margin-bottom: 18px;
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 12px;
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 165px;
  flex: 1;
}

.filter-group label {
  font-size: 11.5px;
  font-weight: 700;
  color: var(--brand-forest);
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.filter-select, .filter-input {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: #FFFFFF;
  color: var(--text-primary);
  font-size: 13px;
  font-weight: 500;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 13px;
  border-radius: var(--radius-sm);
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid var(--border-strong);
  background: #FFFFFF;
  color: var(--text-primary);
  text-decoration: none;
  transition: all 0.15s ease;
}

.btn:hover {
  background: var(--bg-subtle);
}

.btn-primary {
  background: var(--brand-forest);
  color: #FFFFFF;
  border-color: var(--brand-forest);
}

.btn-primary:hover {
  background: var(--brand-emerald);
}

.btn-chip {
  padding: 5px 10px;
  font-size: 12px;
  border-radius: 999px;
}

.btn-chip.active {
  background: var(--brand-forest);
  color: #FFFFFF;
  border-color: var(--brand-forest);
}

/* Interactive Map Container */
.map-wrapper {
  position: relative;
  background: #F8FAFC;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 10px;
  min-height: 410px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.map-svg {
  width: 100%;
  height: 360px;
  display: block;
}

.map-poly {
  stroke: #FFFFFF;
  stroke-width: 1.2px;
  cursor: pointer;
  transition: opacity 0.15s ease, stroke-width 0.15s ease;
}

.map-poly:hover {
  opacity: 0.86;
  stroke: #0F172A;
  stroke-width: 2.2px;
}

.map-poly.selected {
  stroke: var(--accent-terracotta);
  stroke-width: 3px;
}

.map-legend {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--border-color);
  font-size: 11.5px;
  color: var(--text-secondary);
}

.legend-scale {
  display: flex;
  align-items: center;
  gap: 5px;
}

.legend-swatch {
  width: 16px;
  height: 11px;
  border-radius: 2px;
  display: inline-block;
  border: 1px solid rgba(0,0,0,0.12);
}

/* Horizontal Bar Charts */
.bar-list {
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.bar-row {
  display: grid;
  grid-template-columns: 165px 1fr 78px;
  align-items: center;
  gap: 10px;
  font-size: 12.5px;
}

.bar-label {
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.bar-track {
  height: 12px;
  background: #E2E8F0;
  border-radius: 999px;
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--brand-forest), var(--brand-sage));
  border-radius: 999px;
}

.bar-fill.fill-terracotta {
  background: linear-gradient(90deg, var(--accent-terracotta), #F97316);
}

.bar-fill.fill-cobalt {
  background: linear-gradient(90deg, var(--accent-cobalt), #60A5FA);
}

.bar-val {
  text-align: right;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--text-primary);
}

/* Data Tables */
.table-scroll {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12.5px;
  font-variant-numeric: tabular-nums;
}

.data-table th,
.data-table td {
  padding: 9px 11px;
  border-bottom: 1px solid var(--border-color);
  text-align: left;
}

.data-table th {
  background: var(--bg-subtle);
  color: var(--brand-forest);
  font-weight: 700;
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  white-space: nowrap;
  position: sticky;
  top: 0;
}

.data-table th.num,
.data-table td.num {
  text-align: right;
}

.data-table tbody tr:hover {
  background: #F8FAFC;
}

.data-table tbody tr.row-clickable {
  cursor: pointer;
}

.data-table tbody tr.row-selected {
  background: #ECFDF5;
}

/* Tier & Status Badges */
.tier-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  white-space: nowrap;
}

.tier-1 {
  background: #DCFCE7;
  color: #14532D;
  border: 1px solid #86EFAC;
}

.tier-2 {
  background: #DBEAFE;
  color: #1E3A8A;
  border: 1px solid #93C5FD;
}

.tier-3 {
  background: #FEF3C7;
  color: #78350F;
  border: 1px solid #FDE68A;
}

.tier-4 {
  background: #F1F5F9;
  color: #475569;
  border: 1px solid #CBD5E1;
}

/* Detail Inspector Panel */
.detail-box {
  background: var(--bg-ivory);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 14px;
}

.detail-stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(125px, 1fr));
  gap: 10px;
  margin: 12px 0;
}

.detail-stat {
  background: #FFFFFF;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
}

.detail-stat-lbl {
  font-size: 11px;
  color: var(--text-muted);
}

.detail-stat-val {
  font-size: 16px;
  font-weight: 800;
  color: var(--brand-forest);
  font-variant-numeric: tabular-nums;
}

/* Alert Callouts */
.callout {
  border-left: 4px solid var(--brand-forest);
  background: var(--bg-subtle);
  padding: 12px 15px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-bottom: 14px;
  font-size: 13px;
}

.callout.callout-warn {
  border-left-color: var(--accent-terracotta);
  background: var(--accent-terracotta-bg);
}

.callout.callout-info {
  border-left-color: var(--accent-cobalt);
  background: var(--accent-cobalt-bg);
}

/* Sliders in Scenario Simulator */
.slider-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
  margin: 12px 0;
}

.slider-item {
  background: var(--bg-ivory);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
}

.slider-item input[type="range"] {
  width: 100%;
  accent-color: var(--brand-forest);
}

/* Responsive Adjustments */
@media (max-width: 960px) {
  .grid-explorer {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .header-inner {
    padding: 12px 14px;
  }
  .nav-inner {
    padding: 0 10px;
  }
  .nav-tab {
    padding: 9px 10px;
    font-size: 12px;
  }
  .main-container {
    padding: 12px;
  }
  .section-card {
    padding: 14px;
  }
  .bar-row {
    grid-template-columns: 115px 1fr 62px;
    font-size: 11.5px;
  }
  .filter-group {
    min-width: 100%;
  }
}