/* ============================================================
   Base reset & layout
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: #0d1117;
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  color: #e6edf3;
  overflow: hidden;
}

#map {
  width: 100vw;
  height: 100vh;
}

/* ============================================================
   Floating header
   ============================================================ */
#header {
  position: fixed;
  top: 16px;
  left: 16px;
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(13, 17, 23, 0.88);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 12px;
  padding: 12px 18px;
  max-width: 340px;
  pointer-events: none;
}

.header-icon {
  font-size: 28px;
  line-height: 1;
}

.header-text h1 {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.3px;
  color: #f0f6fc;
}

.header-text p {
  font-size: 11px;
  color: #8b949e;
  margin-top: 2px;
}

/* ============================================================
   Info panel (hover details)
   ============================================================ */
#info-panel {
  position: fixed;
  top: 92px;
  left: 16px;
  z-index: 1000;
  background: rgba(13, 17, 23, 0.92);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 12px;
  padding: 14px 18px;
  min-width: 220px;
  max-width: 300px;
  transition: opacity 0.2s;
}

#info-panel.hidden {
  opacity: 0;
  pointer-events: none;
}

#info-content h3 {
  font-size: 14px;
  font-weight: 700;
  color: #f0f6fc;
  margin-bottom: 6px;
}

#info-content .iso-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  margin-bottom: 8px;
}

#info-content .info-row {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: #8b949e;
  margin-top: 3px;
}

#info-content .info-row span:last-child {
  color: #c9d1d9;
  font-weight: 500;
}

/* ============================================================
   Custom Leaflet controls styling
   ============================================================ */
.leaflet-control-zoom {
  border: none !important;
  box-shadow: none !important;
}

.leaflet-control-zoom a {
  background: rgba(13, 17, 23, 0.88) !important;
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.12) !important;
  color: #c9d1d9 !important;
  border-radius: 8px !important;
  margin-bottom: 4px !important;
  font-size: 16px !important;
  line-height: 28px !important;
  width: 30px !important;
  height: 30px !important;
}

.leaflet-control-zoom a:hover {
  background: rgba(30, 40, 55, 0.95) !important;
  color: #f0f6fc !important;
}

.leaflet-bar a:first-child { border-radius: 8px !important; }
.leaflet-bar a:last-child  { border-radius: 8px !important; }

/* ============================================================
   Leaflet layer control
   ============================================================ */
.leaflet-control-layers {
  background: rgba(13, 17, 23, 0.88) !important;
  backdrop-filter: blur(8px) !important;
  border: 1px solid rgba(255,255,255,0.12) !important;
  border-radius: 12px !important;
  color: #c9d1d9 !important;
  box-shadow: none !important;
  min-width: 190px;
}

.leaflet-control-layers-expanded {
  padding: 12px 16px !important;
}

.leaflet-control-layers-toggle {
  background-image: none !important;
  font-size: 16px !important;
  width: 36px !important;
  height: 36px !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
}

.leaflet-control-layers-toggle::before {
  content: '🗂';
  font-size: 18px;
}

.leaflet-control-layers-base,
.leaflet-control-layers-overlays {
  font-size: 12px !important;
}

.leaflet-control-layers label {
  cursor: pointer;
  padding: 2px 0;
}

.leaflet-control-layers input {
  margin-right: 6px;
  accent-color: #58a6ff;
}

.leaflet-bottom .leaflet-left .leaflet-control {
  margin-bottom: 12px;
}

/* Section heading inside layer control */
.layer-section-title {
  font-size: 10px;
  font-weight: 700;
  color: #6e7681;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  margin-top: 8px;
  margin-bottom: 2px;
}

/* ============================================================
   Legend Leaflet control
   ============================================================ */
.legend-panel {
  background: rgba(13, 17, 23, 0.88);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 12px;
  padding: 14px 18px;
  font-size: 11px;
  color: #c9d1d9;
  max-width: 220px;
}

.legend-panel h4 {
  font-size: 10px;
  font-weight: 700;
  color: #6e7681;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  margin-top: 10px;
  margin-bottom: 5px;
}

.legend-panel h4:first-child { margin-top: 0; }

.legend-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 4px;
  font-size: 11px;
}

.legend-swatch {
  width: 16px;
  height: 16px;
  border-radius: 3px;
  flex-shrink: 0;
  border: 1px solid rgba(255,255,255,0.15);
}

.legend-line-sample {
  width: 28px;
  height: 0;
  flex-shrink: 0;
  display: inline-block;
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.generator-filter-panel {
  background: rgba(13, 17, 23, 0.88);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 12px;
  color: #c9d1d9;
  padding: 12px 14px;
  width: 260px;
  box-shadow: none;
}

.generator-filter-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.generator-filter-header h4,
.generator-filter-label {
  font-size: 10px;
  font-weight: 700;
  color: #6e7681;
  letter-spacing: 0.8px;
  text-transform: uppercase;
}

.generator-filter-toggle,
.generator-filter-actions button {
  background: rgba(255,255,255,0.06);
  color: #c9d1d9;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 8px;
  font-size: 11px;
  padding: 5px 8px;
  cursor: pointer;
}

.generator-filter-toggle:hover,
.generator-filter-actions button:hover {
  background: rgba(88,166,255,0.14);
  color: #f0f6fc;
}

.generator-filter-body {
  margin-top: 10px;
  display: grid;
  gap: 10px;
}

.generator-filter-panel.is-collapsed .generator-filter-body {
  display: none;
}

.generator-filter-summary {
  font-size: 11px;
  color: #8b949e;
}

.generator-filter-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.generator-filter-group {
  display: grid;
  gap: 6px;
}

.generator-filter-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px 10px;
}

.generator-filter-option {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: #c9d1d9;
  cursor: pointer;
}

.generator-filter-option input {
  margin: 0;
  accent-color: #58a6ff;
}

.generator-filter-range {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.generator-filter-range label {
  display: grid;
  gap: 4px;
  font-size: 10px;
  color: #8b949e;
}

.generator-filter-range input {
  width: 100%;
  background: rgba(255,255,255,0.04);
  color: #f0f6fc;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 8px;
  padding: 6px 8px;
}

/* ============================================================
   Tooltips & popups
   ============================================================ */
.leaflet-tooltip {
  background: rgba(13, 17, 23, 0.92) !important;
  border: 1px solid rgba(255,255,255,0.15) !important;
  border-radius: 8px !important;
  color: #e6edf3 !important;
  font-size: 12px !important;
  padding: 6px 10px !important;
  box-shadow: 0 4px 12px rgba(0,0,0,0.4) !important;
}

.leaflet-tooltip-top::before {
  border-top-color: rgba(255,255,255,0.15) !important;
}

.leaflet-popup-content-wrapper {
  background: rgba(13, 17, 23, 0.96) !important;
  border: 1px solid rgba(255,255,255,0.15) !important;
  border-radius: 12px !important;
  color: #e6edf3 !important;
  box-shadow: 0 8px 24px rgba(0,0,0,0.5) !important;
}

.leaflet-popup-tip {
  background: rgba(13, 17, 23, 0.96) !important;
}

.leaflet-popup-close-button {
  color: #6e7681 !important;
  font-size: 18px !important;
}

/* Popup content */
.popup-header {
  font-size: 14px;
  font-weight: 700;
  color: #f0f6fc;
  margin-bottom: 4px;
}

.popup-sub {
  font-size: 11px;
  color: #8b949e;
  margin-bottom: 12px;
}

.popup-link-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.popup-link-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 28px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(88,166,255,0.12);
  border: 1px solid rgba(88,166,255,0.24);
  color: #cfe8ff;
  font-size: 11px;
  font-weight: 600;
  text-decoration: none;
}

.popup-link-chip:hover {
  background: rgba(88,166,255,0.18);
  color: #f0f6fc;
}

.popup-pie-container {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 12px;
}

.popup-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 11px;
}

.popup-table td {
  padding: 3px 6px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.popup-table td:last-child { text-align: right; color: #8b949e; }
.popup-table td:first-child { padding-left: 0; }

.fuel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
  margin-right: 5px;
  vertical-align: middle;
}

.popup-source {
  font-size: 10px;
  color: #484f58;
  margin-top: 8px;
}

.popup-section-label {
  font-size: 10px;
  font-weight: 700;
  color: #6e7681;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  margin-top: 12px;
  margin-bottom: 6px;
}

.popup-tech-list {
  display: grid;
  gap: 4px;
}

.popup-scroll {
  max-height: 220px;
  overflow: auto;
  padding-right: 4px;
}

.popup-generator-table td {
  vertical-align: top;
}

/* ============================================================
   Generation marker icon
   ============================================================ */
.gen-marker-icon {
  cursor: pointer;
  filter: drop-shadow(0 2px 6px rgba(0,0,0,0.7));
}

.generator-cluster {
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: color-mix(in srgb, var(--cluster-color) 78%, rgba(13, 17, 23, 0.92));
  border: 2px solid rgba(13, 17, 23, 0.92);
  box-shadow: 0 8px 20px rgba(0,0,0,0.35);
}

.generator-cluster-count {
  font-size: 11px;
  font-weight: 700;
  color: #f0f6fc;
  line-height: 1;
}

/* ============================================================
   Responsive: collapse legend on mobile
   ============================================================ */
@media (max-width: 600px) {
  #header { max-width: calc(100vw - 80px); }
  #info-panel {
    top: auto;
    bottom: 110px;
    max-width: calc(100vw - 32px);
  }
  .legend-panel { max-width: 170px; font-size: 10px; }
  .legend-swatch { width: 12px; height: 12px; }
  .generator-filter-panel {
    width: min(240px, calc(100vw - 32px));
  }
  .generator-filter-grid,
  .generator-filter-range {
    grid-template-columns: 1fr;
  }
}