:root {
  color-scheme: dark;
  --bg: #080b1a;
  --panel-bg: rgba(17, 23, 45, 0.92);
  --panel-border: rgba(90, 114, 184, 0.35);
  --text: #e6ecff;
  --text-soft: #97a3c5;
  --accent: #4bc0c8;
  --accent-strong: #f9de59;
  --danger: #ff6b6b;
  --font-base: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --legend-gradient: linear-gradient(90deg, #120c3c 0%, #2b468f 33%, #1fa2a1 66%, #f9de59 100%);
}

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-base);
  height: 100vh;
  overflow: hidden;
}

.app {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ── Header ─────────────────────────────────────── */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 0.75rem 1.5rem;
  background: rgba(4, 6, 18, 0.95);
  border-bottom: 1px solid var(--panel-border);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.45);
  z-index: 20;
  position: relative;
}

.logo-stack {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo {
  height: 42px;
  width: auto;
  object-fit: contain;
}

.header-text {
  flex: 1 1 auto;
  min-width: 180px;
}

/* ── Language Toggle ───────────────────────────── */
.lang-toggle {
  display: flex;
  gap: 0.35rem;
  align-items: center;
}

.lang-btn {
  background: transparent;
  border: 2px solid transparent;
  border-radius: 4px;
  cursor: pointer;
  padding: 2px;
  opacity: 0.45;
  transition: opacity 0.2s, border-color 0.2s;
  display: flex;
  align-items: center;
}

.lang-btn:hover {
  opacity: 0.8;
}

.lang-btn-active {
  opacity: 1;
  border-color: var(--accent);
}

.prototype-badge {
  font-size: 1rem;
  letter-spacing: 0.18em;
  color: var(--danger);
  text-transform: uppercase;
  margin-left: auto;
  font-weight: 600;
}

.app-header h1 {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.app-header p {
  margin: 0.15rem 0 0;
  font-size: 0.78rem;
  color: var(--text-soft);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ── Toolbar (horizontal control bar) ──────────── */
.toolbar {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0.6rem 1.25rem;
  background: var(--panel-bg);
  border-bottom: 1px solid var(--panel-border);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
  z-index: 15;
  position: relative;
  flex-wrap: wrap;
}

.toolbar-spacer {
  flex: 1 1 auto;
}

.toolbar-actions {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.toolbar-group {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  position: relative;
}

.toolbar-label {
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-soft);
  white-space: nowrap;
}

/* Variable dropdown in toolbar */
.toolbar-group .custom-dropdown {
  min-width: 200px;
}

/* Time step group */
.toolbar-time {
  flex: 1;
  min-width: 200px;
  max-width: 400px;
}

.toolbar-time-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.toolbar-time-header .time-display {
  margin-left: auto;
  font-size: 0.78rem;
  color: var(--accent-strong);
  letter-spacing: 0.08em;
  white-space: nowrap;
}

/* Opacity group */
.toolbar-opacity {
  min-width: 120px;
  max-width: 180px;
}

.toolbar-opacity-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

#opacityValue {
  font-size: 0.7rem;
  color: var(--text-soft);
  letter-spacing: 0.1em;
}

/* Toggle group */
/* Legend in toolbar */
.toolbar-legend {
  min-width: 140px;
  max-width: 200px;
  flex: 0 1 180px;
}

.toolbar-legend-top {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.legend-title {
  font-size: 0.75rem;
  color: var(--text-soft);
  letter-spacing: 0.1em;
  font-weight: 500;
}

.legend-title sup {
  font-size: 0.65em;
}

.legend-gradient {
  width: 100%;
  height: 10px;
  border-radius: 999px;
  background: var(--legend-gradient);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: inset 0 1px 4px rgba(0, 0, 0, 0.35);
  margin-top: 0.15rem;
}

.legend-labels {
  display: flex;
  justify-content: space-between;
  margin-top: 0.15rem;
  font-size: 0.65rem;
  color: var(--text-soft);
  letter-spacing: 0.06em;
}

/* Info button & popover */
.toolbar-info {
  align-self: center;
}

.info-popover {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 420px;
  background: rgba(10, 15, 30, 0.96);
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  padding: 1.4rem 1.6rem;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.5);
  z-index: 200;
}

.info-popover.hidden {
  display: none;
}

.info-section {
  margin-bottom: 1rem;
}

.info-section:last-child {
  margin-bottom: 0;
}

.info-section h3 {
  margin: 0 0 0.5rem;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
}

.info-section dl {
  margin: 0;
  display: grid;
  gap: 0.5rem;
}

.info-section dt {
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-soft);
}

.info-section dd {
  margin: 0.1rem 0 0;
  font-size: 0.82rem;
  color: var(--text);
}

.info-section ul {
  margin: 0.3rem 0 0;
  padding-left: 1.1rem;
  color: var(--text-soft);
  font-size: 0.78rem;
  line-height: 1.5;
}

/* ── FAQ Popover ───────────────────────────────── */
.faq-popover {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 580px;
  max-width: 92vw;
  max-height: 80vh;
  background: rgba(10, 15, 30, 0.98);
  border: 1px solid var(--panel-border);
  border-radius: 14px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.7);
  z-index: 500;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.faq-popover.hidden {
  display: none;
}

.faq-popover-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.1rem;
  border-bottom: 1px solid var(--panel-border);
  flex-shrink: 0;
}

.faq-popover-header h3 {
  margin: 0;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
}

.faq-close {
  background: none;
  border: none;
  color: var(--text-soft);
  font-size: 1.4rem;
  cursor: pointer;
  padding: 0 0.3rem;
  line-height: 1;
  transition: color 0.2s;
}

.faq-close:hover {
  color: var(--text);
}

.faq-content {
  overflow-y: auto;
  padding: 0.75rem 1.1rem 1.1rem;
  flex: 1;
}

.faq-item {
  border-bottom: 1px solid rgba(90, 114, 184, 0.2);
  padding: 0;
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-item summary {
  padding: 0.7rem 0;
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--text);
  font-weight: 500;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: color 0.2s;
}

.faq-item summary::before {
  content: '▸';
  font-size: 0.75rem;
  color: var(--accent);
  transition: transform 0.2s;
  flex-shrink: 0;
}

.faq-item[open] summary::before {
  transform: rotate(90deg);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary:hover {
  color: var(--accent);
}

.faq-item p,
.faq-item ul {
  margin: 0 0 0.6rem;
  padding-left: 1.2rem;
  font-size: 0.8rem;
  color: var(--text-soft);
  line-height: 1.6;
}

.faq-item ul {
  padding-left: 2.2rem;
}

.faq-item li {
  margin-bottom: 0.25rem;
}

/* ── Main body / Map ───────────────────────────── */
.app-body {
  display: flex;
  flex: 1;
  min-height: 0;
  position: relative;
}

#map {
  flex: 1;
  min-height: 0;
  height: calc(100vh - 130px);
  z-index: 1;
}

.map-attribution {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  font-size: 0.82rem;
  font-weight: 500;
  color: rgba(230, 236, 255, 0.92);
  background: rgba(4, 6, 18, 0.75);
  padding: 0.35rem 0.7rem;
  border-radius: 8px;
  letter-spacing: 0.04em;
  pointer-events: none;
  backdrop-filter: blur(6px);
  line-height: 1.4;
  white-space: nowrap;
}

#map .leaflet-control-attribution {
  font-size: 0.65rem !important;
  background: rgba(4, 6, 18, 0.7) !important;
  color: rgba(230, 236, 255, 0.85) !important;
  padding: 2px 8px !important;
  position: fixed !important;
  bottom: 0 !important;
  right: 0 !important;
}

#map .leaflet-control-attribution a {
  color: rgba(180, 200, 255, 0.9) !important;
}

/* ── Shared form controls ──────────────────────── */
select,
input[type="range"],
button {
  font-family: inherit;
}

select {
  padding: 0.5rem 0.65rem;
  border-radius: 8px;
  border: 1px solid rgba(90, 114, 184, 0.45);
  background: rgba(10, 15, 30, 0.9);
  color: var(--text);
  transition: border 0.2s ease, box-shadow 0.2s ease;
  width: 100%;
  box-sizing: border-box;
  appearance: auto;
  -webkit-appearance: menulist;
  -moz-appearance: menulist;
}

select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(75, 192, 200, 0.35);
}

input[type="range"] {
  width: 100%;
  margin: 0.25rem 0;
  accent-color: var(--accent);
}

.ghost-button {
  background: transparent;
  color: var(--accent);
  border: 1px solid rgba(75, 192, 200, 0.5);
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.ghost-button:hover,
.ghost-button:focus {
  background: rgba(75, 192, 200, 0.15);
  border-color: var(--accent);
  outline: none;
}

.checkbox-field {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  cursor: pointer;
  user-select: none;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.checkbox-field input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  cursor: pointer;
  height: 0;
  width: 0;
}

.checkmark {
  height: 16px;
  width: 16px;
  background-color: rgba(10, 15, 30, 0.9);
  border: 1px solid rgba(90, 114, 184, 0.45);
  border-radius: 4px;
  position: relative;
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.checkbox-field:hover .checkmark {
  border-color: var(--accent);
}

.checkbox-field input[type="checkbox"]:checked ~ .checkmark {
  background-color: var(--accent);
  border-color: var(--accent);
}

.checkmark:after {
  content: "";
  position: absolute;
  display: none;
  left: 5px;
  top: 2px;
  width: 4px;
  height: 8px;
  border: solid #0b101d;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.checkbox-field input[type="checkbox"]:checked ~ .checkmark:after {
  display: block;
}

/* ── Custom dropdown ───────────────────────────── */
.custom-dropdown {
  position: relative;
  width: 100%;
}

.dropdown-selected {
  padding: 0.45rem 0.65rem;
  border-radius: 8px;
  border: 1px solid rgba(90, 114, 184, 0.45);
  background: rgba(10, 15, 30, 0.9);
  color: var(--text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: border 0.2s ease, box-shadow 0.2s ease;
  font-size: 0.82rem;
}

.dropdown-selected:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(75, 192, 200, 0.35);
}

.dropdown-selected::after {
  content: '\25BC';
  font-size: 0.55rem;
  margin-left: 8px;
  transition: transform 0.2s ease;
}

.custom-dropdown.open .dropdown-selected::after {
  transform: rotate(180deg);
}

.dropdown-options {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: rgba(10, 15, 30, 0.98);
  border: 1px solid rgba(90, 114, 184, 0.45);
  border-radius: 8px;
  margin-top: 2px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.2s ease;
  z-index: 100;
}

.custom-dropdown.open .dropdown-options {
  max-height: 300px;
  overflow-y: auto;
}

.dropdown-option {
  padding: 0.5rem 0.65rem;
  color: var(--text);
  cursor: pointer;
  border-bottom: 1px solid rgba(90, 114, 184, 0.2);
  transition: background 0.2s ease, color 0.2s ease;
  font-size: 0.82rem;
}

.dropdown-option:last-child {
  border-bottom: none;
}

.dropdown-option:hover,
.dropdown-option.selected {
  background: rgba(75, 192, 200, 0.2);
  color: var(--accent);
}

.dropdown-option.selected {
  background: var(--accent);
  color: #0b101d;
}

/* ── Basemap control (map overlay) ─────────────── */
.basemap-control {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 8px;
  background: rgba(8, 12, 32, 0.9);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.basemap-control .basemap-label {
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-soft);
  margin-bottom: 4px;
  font-weight: 600;
}

.basemap-control .custom-dropdown {
  min-width: 140px;
}

.basemap-control .dropdown-selected {
  padding: 6px 10px;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: rgba(8, 12, 32, 0.88);
  border: 1px solid var(--panel-border);
  border-radius: 6px;
}

.basemap-control .dropdown-options {
  background: rgba(8, 12, 32, 0.95);
  border: 1px solid var(--panel-border);
  border-radius: 6px;
}

.basemap-control .dropdown-option {
  padding: 8px 10px;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.basemap-boundary-toggle {
  margin-top: 6px;
  padding-top: 6px;
  border-top: 1px solid var(--panel-border);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-soft);
}

/* ── Tooltips ──────────────────────────────────── */
.district-tooltip {
  background: rgba(8, 12, 32, 0.92);
  border: 1px solid var(--panel-border);
  color: var(--text);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.45);
  padding: 0.35rem 0.55rem;
  border-radius: 8px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.75rem;
}

.district-tooltip .tooltip-stats {
  margin-top: 0.4rem;
  display: flex;
  gap: 0.75rem;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: none;
}

.district-tooltip .tooltip-stats span {
  display: inline-block;
}

.district-tooltip .tooltip-time {
  margin-top: 0.25rem;
  font-size: 0.68rem;
  color: var(--accent);
  letter-spacing: 0.06em;
  opacity: 0.9;
}

/* ── Reset view control ────────────────────────── */
.reset-view-control a {
  display: block;
  width: 32px;
  height: 32px;
  line-height: 32px;
  text-align: center;
  font-size: 18px;
  color: var(--text);
  background: rgba(8, 12, 32, 0.9);
  border: 1px solid var(--panel-border);
  border-radius: 4px;
  text-decoration: none;
  cursor: pointer;
}

.reset-view-control a:hover,
.reset-view-control a:focus {
  background: rgba(75, 192, 200, 0.2);
  color: var(--accent);
}

/* ── District Statistics Modal ──────────────────── */
.district-modal {
  position: fixed;
  inset: 0;
  z-index: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.district-modal.hidden {
  display: none;
}

.district-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(4, 6, 18, 0.7);
  backdrop-filter: blur(4px);
}

.district-modal-content {
  position: relative;
  width: 680px;
  max-width: 94vw;
  max-height: 86vh;
  background: rgba(10, 15, 30, 0.98);
  border: 1px solid var(--panel-border);
  border-radius: 14px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.7);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.district-modal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 1rem 1.2rem;
  border-bottom: 1px solid var(--panel-border);
  flex-shrink: 0;
}

.district-modal-header h3 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text);
}

.district-modal-subtitle {
  font-size: 0.75rem;
  color: var(--text-soft);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-top: 0.15rem;
  display: block;
}

.district-modal-body {
  padding: 1rem 1.2rem 1.2rem;
  overflow-y: auto;
  flex: 1;
}

.district-modal-chart-wrap {
  background: rgba(6, 10, 24, 0.6);
  border: 1px solid rgba(90, 114, 184, 0.2);
  border-radius: 10px;
  padding: 0.75rem;
  margin-bottom: 1rem;
}

.district-modal-chart-wrap canvas {
  display: block;
  max-width: 100%;
}

.district-modal-stats {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0.6rem;
}

.district-stat-card {
  background: rgba(17, 23, 45, 0.7);
  border: 1px solid rgba(90, 114, 184, 0.2);
  border-radius: 10px;
  padding: 0.7rem 0.85rem;
}

.district-stat-card h4 {
  margin: 0 0 0.5rem;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  font-weight: 600;
}

.district-stat-card h4 span {
  text-transform: none;
}

/* ── PV Estimate card ─────────────────────────── */
.pv-stat-card {
  border-left: 3px solid #f59e0b;
}

.pv-stat-card h4 {
  color: #f59e0b;
}

.pv-stat-card-wide {
  grid-column: 1 / -1;
}

.pv-disclaimer {
  grid-column: 1 / -1;
  font-size: 0.62rem;
  font-style: italic;
  color: var(--text-soft);
  opacity: 0.7;
  line-height: 1.5;
  margin: 0.25rem 0 0;
  padding: 0;
}

.district-stat-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 0.2rem 0;
  font-size: 0.78rem;
}

.district-stat-row:not(:last-child) {
  border-bottom: 1px solid rgba(90, 114, 184, 0.1);
}

.district-stat-label {
  color: var(--text-soft);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
}

.district-stat-value {
  color: var(--text);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}

/* ── AOI Pulsing Markers ──────────────────────── */
.aoi-marker {
  position: absolute;
  width: 14px;
  height: 14px;
}

.aoi-marker-dot {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 10px;
  height: 10px;
  margin: -5px 0 0 -5px;
  border-radius: 50%;
  background: #f9de59;
  border: 2px solid rgba(255, 255, 255, 0.9);
  box-shadow: 0 0 6px rgba(249, 222, 89, 0.7);
  z-index: 2;
}

.aoi-marker-ping {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 10px;
  height: 10px;
  margin: -5px 0 0 -5px;
  border-radius: 50%;
  background: rgba(249, 222, 89, 0.4);
  animation: aoi-ping 2s ease-out infinite;
  z-index: 1;
}

@keyframes aoi-ping {
  0% {
    transform: scale(1);
    opacity: 0.7;
  }
  100% {
    transform: scale(4);
    opacity: 0;
  }
}

.aoi-marker-planned .aoi-marker-dot {
  background: #c084fc;
  box-shadow: 0 0 6px rgba(192, 132, 252, 0.7);
}

.aoi-marker-planned .aoi-marker-ping {
  background: rgba(192, 132, 252, 0.4);
}

/* ── AOI Side Panel ────────────────────────────── */
.aoi-panel {
  position: fixed;
  top: 0;
  right: 0;
  width: 380px;
  height: 100vh;
  background: rgba(10, 15, 30, 0.96);
  border-left: 1px solid var(--panel-border);
  z-index: 600;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.3s ease;
  backdrop-filter: blur(12px);
}

.aoi-panel.visible {
  transform: translateX(0);
}

.aoi-panel.hidden {
  pointer-events: none;
}

.aoi-panel-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 1rem 1.2rem;
  border-bottom: 1px solid rgba(90, 114, 184, 0.2);
  flex-shrink: 0;
}

.aoi-panel-header h3 {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text);
  font-weight: 600;
}

.aoi-panel-body {
  flex: 1;
  overflow-y: auto;
  padding: 1rem 1.2rem;
}

.aoi-panel-body .district-modal-stats {
  grid-template-columns: 1fr;
}

.aoi-panel-body .district-modal-chart-wrap {
  margin-bottom: 1rem;
}

/* ── AOI Site Info ─────────────────────────────── */
.aoi-modal-info {
  margin-bottom: 1rem;
}

.aoi-site-meta {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-bottom: 0.75rem;
}

.aoi-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  font-weight: 600;
  border: 1px solid rgba(90, 114, 184, 0.25);
  background: rgba(17, 23, 45, 0.7);
  color: var(--text-soft);
}

.aoi-badge-operational {
  color: #4bc0c8;
  border-color: rgba(75, 192, 200, 0.35);
}

.aoi-badge-planned {
  color: #f9de59;
  border-color: rgba(249, 222, 89, 0.3);
}

.aoi-badge-construction {
  color: #c084fc;
  border-color: rgba(192, 132, 252, 0.3);
}

.aoi-description {
  font-size: 0.82rem;
  line-height: 1.65;
  color: var(--text);
  background: rgba(17, 23, 45, 0.5);
  border: 1px solid rgba(90, 114, 184, 0.15);
  border-radius: 10px;
  padding: 0.85rem 1rem;
}

.aoi-description-label {
  display: block;
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 0.4rem;
}

/* ── Loading overlay ───────────────────────────── */
.loading {
  position: fixed;
  inset: 0;
  background: rgba(4, 6, 18, 0.88);
  color: var(--accent-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  z-index: 999;
  backdrop-filter: blur(6px);
}

.loading.hidden {
  display: none;
}

/* ── AI Chat Panel ─────────────────────────────── */
.chat-panel {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 520px;
  max-width: 92vw;
  height: 560px;
  max-height: 80vh;
  background: rgba(10, 15, 30, 0.98);
  border: 1px solid var(--panel-border);
  border-radius: 14px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.7);
  z-index: 500;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.chat-panel.hidden {
  display: none;
}

.chat-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  background: rgba(4, 6, 18, 0.95);
  border-bottom: 1px solid var(--panel-border);
  flex-shrink: 0;
}

.chat-header-actions {
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.chat-header-btn {
  background: none;
  border: none;
  color: var(--text-soft);
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  transition: color 0.2s, background 0.2s;
}

.chat-header-btn:hover {
  color: var(--text);
  background: rgba(90, 114, 184, 0.2);
}

.chat-panel-header h3 {
  margin: 0;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.chat-msg {
  max-width: 88%;
  padding: 0.6rem 0.85rem;
  border-radius: 12px;
  font-size: 0.82rem;
  line-height: 1.55;
  word-wrap: break-word;
}

.chat-msg p {
  margin: 0 0 0.4rem;
}

.chat-msg p:last-child {
  margin-bottom: 0;
}

.chat-msg ul, .chat-msg ol {
  margin: 0.25rem 0;
  padding-left: 1.2rem;
}

.chat-msg li {
  margin-bottom: 0.15rem;
}

.chat-msg-user {
  align-self: flex-end;
  background: var(--accent);
  color: #0b101d;
  border-bottom-right-radius: 4px;
}

.chat-msg-ai {
  align-self: flex-start;
  background: rgba(30, 40, 70, 0.8);
  color: var(--text);
  border: 1px solid rgba(90, 114, 184, 0.2);
  border-bottom-left-radius: 4px;
}

.chat-msg-ai.error {
  border-color: rgba(255, 107, 107, 0.4);
  color: var(--danger);
}

.chat-typing {
  display: flex;
  gap: 4px;
  padding: 0.6rem 0.85rem;
  align-self: flex-start;
}

.chat-typing span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--text-soft);
  animation: chatBounce 1.2s infinite;
}

.chat-typing span:nth-child(2) { animation-delay: 0.15s; }
.chat-typing span:nth-child(3) { animation-delay: 0.3s; }

@keyframes chatBounce {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
  30% { transform: translateY(-6px); opacity: 1; }
}

.chat-input-area {
  display: flex;
  gap: 0.4rem;
  padding: 0.6rem 0.75rem;
  border-top: 1px solid var(--panel-border);
  background: rgba(4, 6, 18, 0.6);
  flex-shrink: 0;
}

.chat-input {
  flex: 1;
  padding: 0.5rem 0.7rem;
  border-radius: 8px;
  border: 1px solid rgba(90, 114, 184, 0.35);
  background: rgba(10, 15, 30, 0.9);
  color: var(--text);
  font-family: inherit;
  font-size: 0.82rem;
  outline: none;
  transition: border-color 0.2s;
}

.chat-input:focus {
  border-color: var(--accent);
}

.chat-input::placeholder {
  color: var(--text-soft);
  opacity: 0.7;
}

.chat-send {
  background: var(--accent);
  color: #0b101d;
  border: none;
  border-radius: 8px;
  padding: 0.5rem 0.6rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.2s;
}

.chat-send:hover {
  opacity: 0.85;
}

.chat-send:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ── Chat categories ──────────────────────────── */
.chat-categories {
  display: flex;
  gap: 0.35rem;
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--panel-border);
  background: rgba(4, 6, 18, 0.4);
  flex-shrink: 0;
  flex-wrap: wrap;
}

.chat-cat-btn {
  font-size: 0.65rem;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  border: 1px solid rgba(90, 114, 184, 0.3);
  background: transparent;
  color: var(--text-soft);
  cursor: pointer;
  letter-spacing: 0.04em;
  transition: all 0.2s;
  white-space: nowrap;
}

.chat-cat-btn:hover, .chat-cat-btn.active {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(56, 189, 248, 0.08);
}

/* ── Quick prompts ────────────────────────────── */
.chat-quick-prompts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  padding: 0.35rem 0.75rem 0.2rem;
  flex-shrink: 0;
}

.chat-quick-prompts:empty {
  display: none;
}

.chat-quick-chip {
  font-size: 0.7rem;
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  border: 1px solid rgba(90, 114, 184, 0.25);
  background: rgba(30, 40, 70, 0.5);
  color: var(--text-soft);
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

.chat-quick-chip:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(56, 189, 248, 0.1);
}

/* ── Copy button on AI messages ───────────────── */
.chat-msg-ai {
  position: relative;
}

.chat-copy-btn {
  position: absolute;
  top: 0.3rem;
  right: 0.3rem;
  background: rgba(10, 15, 30, 0.7);
  border: 1px solid rgba(90, 114, 184, 0.2);
  color: var(--text-soft);
  cursor: pointer;
  padding: 3px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  opacity: 0;
  transition: opacity 0.2s, color 0.2s;
}

.chat-msg-ai:hover .chat-copy-btn {
  opacity: 1;
}

.chat-copy-btn:hover {
  color: var(--accent);
}

.chat-copy-btn.copied {
  color: #4ade80;
}

/* ── Clickable location refs in AI messages ───── */
.chat-location-link {
  color: var(--accent);
  cursor: pointer;
  text-decoration: underline;
  text-decoration-style: dotted;
  text-underline-offset: 2px;
}

.chat-location-link:hover {
  text-decoration-style: solid;
}

/* ── Chat disclaimer ──────────────────────────── */
.chat-disclaimer {
  font-size: 0.6rem;
  color: var(--text-soft);
  opacity: 0.55;
  text-align: center;
  padding: 0.3rem 0.75rem 0.45rem;
  line-height: 1.4;
  flex-shrink: 0;
}

/* ── Data source footnote on AI messages ───────── */
.chat-data-footnote {
  font-size: 0.62rem;
  color: var(--text-soft);
  opacity: 0.6;
  margin-top: 0.5rem;
  padding-top: 0.35rem;
  border-top: 1px solid rgba(90, 114, 184, 0.15);
  font-style: italic;
}

/* ── Follow-up chips after AI response ──────────── */
.chat-followup-chip {
  font-size: 0.65rem !important;
  background: rgba(56, 189, 248, 0.06) !important;
  border-color: rgba(56, 189, 248, 0.2) !important;
}

/* ── Contextual typing indicator ──────────────── */
.chat-typing-context {
  font-size: 0.68rem;
  color: var(--text-soft);
  padding: 0 0.85rem 0.1rem;
  align-self: flex-start;
  font-style: italic;
}

/* ── Chat markdown tables ─────────────────────── */
.chat-table-wrap {
  overflow-x: auto;
  margin: 0.4rem 0;
  -webkit-overflow-scrolling: touch;
}

.chat-msg table {
  border-collapse: collapse;
  width: max-content;
  min-width: 100%;
  font-size: 0.75rem;
}

.chat-msg th, .chat-msg td {
  border: 1px solid rgba(90, 114, 184, 0.25);
  padding: 0.25rem 0.5rem;
  text-align: left;
}

.chat-msg th {
  background: rgba(30, 40, 70, 0.6);
  color: var(--accent);
  font-weight: 600;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.chat-msg code {
  background: rgba(30, 40, 70, 0.6);
  padding: 0.1rem 0.3rem;
  border-radius: 3px;
  font-size: 0.78rem;
}

.chat-msg pre {
  background: rgba(10, 15, 30, 0.8);
  padding: 0.5rem;
  border-radius: 6px;
  overflow-x: auto;
  margin: 0.4rem 0;
}

.chat-msg pre code {
  background: none;
  padding: 0;
}

.chat-msg h1, .chat-msg h2, .chat-msg h3 {
  font-size: 0.82rem;
  margin: 0.5rem 0 0.25rem;
  color: var(--accent);
}

/* ── Responsive ────────────────────────────────── */
@media (max-width: 900px) {
  .toolbar {
    gap: 0.75rem;
    padding: 0.5rem 1rem;
  }

  .toolbar-time {
    min-width: 160px;
  }

  .toolbar-group .custom-dropdown {
    min-width: 160px;
  }

  #map {
    height: calc(100vh - 150px);
  }
}

@media (max-width: 640px) {
  .app-header {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
    padding: 0.5rem 1rem;
  }

  .logo-stack {
    justify-content: center;
  }

  .prototype-badge {
    margin-top: 0.15rem;
  }

  .toolbar {
    gap: 0.6rem;
    padding: 0.5rem 0.75rem;
  }

  .toolbar-group .custom-dropdown {
    min-width: 140px;
  }

  .toolbar-time {
    min-width: 140px;
    max-width: none;
    flex: 1 1 100%;
  }

  .toolbar-legend {
    flex: 1 1 100%;
    max-width: none;
  }

  #map {
    height: calc(100vh - 180px);
  }

  .faq-popover,
  .chat-panel {
    width: 95vw;
    max-height: 85vh;
  }

  .district-modal-stats {
    grid-template-columns: 1fr;
  }

  .aoi-panel {
    width: 100vw;
  }
}