#sb-layout {
  position: relative;
  flex: 1;
  min-width: 0;
  height: 100%;
}
.sb-panel-title {
  padding: 0.65rem 0.75rem 0.5rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: #334155;
  border-bottom: 1px solid #f1f5f9;
  line-height: 1.2;
}
.sb-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.4rem;
}
.sb-public-badge {
  display: inline-flex;
  align-items: center;
  border: 1px solid #7f1d1d;
  background: #b91c1c;
  color: #ffffff;
  border-radius: 999px;
  padding: 0.12rem 0.45rem;
  font-size: 0.62rem;
  line-height: 1.1;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 700;
}
/* Left control panel */
#sb-panel {
  width: 15rem;
  position: absolute;
  left: 0.75rem;
  top: 0.75rem;
  z-index: 30;
  background: #ffffff;
  color: #334155;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  max-height: calc(100% - 1.5rem);
  font-size: 0.75rem;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  border: 1px solid #e2e8f0;
  border-radius: 0.5rem;
  box-shadow: 0 4px 14px rgba(15, 23, 42, 0.12);
}
#sb-panel button,
#sb-panel input,
#sb-panel select,
#sb-panel textarea {
  font-family: inherit;
}
#sb-panel h3 {
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  color: #1e293b;
  text-transform: uppercase;
  padding: 0.5rem 0.75rem 0.2rem;
  line-height: 1.2;
}
#sb-panel .sep { border-top: 1px solid #f1f5f9; margin: 0.2rem 0; }
#sb-panel label { display: flex; align-items: center; gap: 0.4rem;
  padding: 0.25rem 0.75rem; cursor: pointer; line-height: 1.25; }
#sb-panel label:hover { background: #f8fafc; }
#sb-panel input[type=checkbox] { accent-color: #38bdf8; flex-shrink: 0; }
#sb-panel input[type=range] { width: 100%; accent-color: #38bdf8; }
#sb-panel select, #sb-panel button.primary {
  width: calc(100% - 1.5rem); margin: 0 0.75rem; box-sizing: border-box;
  background: #ffffff; color: #334155; border: 1px solid #cbd5e1;
  border-radius: 0.3rem; padding: 0.25rem 0.4rem;
}
#sb-panel button { cursor: pointer; border: 1px solid #334155; border-radius: 0.25rem;
  background: #ffffff; color: #475569; padding: 0.22rem 0.55rem; font-size: 0.75rem; line-height: 1.2; }
#sb-panel button:hover { background: #f8fafc; color: #334155; border-color: #94a3b8; }
#sb-panel button.active { background: #0369a1; color: #fff; border-color: #0284c7; }
.sb-icon-btn { padding: 0.18rem 0.38rem; line-height: 0; }
.ve-row { display: flex; gap: 0.35rem; padding: 0.1rem 0.75rem 0.3rem; }
.section-entry { display: flex; align-items: center; gap: 0.4rem;
  padding: 0.2rem 0.75rem; cursor: pointer; line-height: 1.25; }
.section-entry:hover { background: #f8fafc; }
.section-entry input[type=checkbox] { accent-color: #38bdf8; flex-shrink: 0; }
.layer-row { padding: 0.2rem 0.75rem 0.12rem; }
.layer-row label { padding: 0; }
.layer-opacity { display: none; padding: 0 0.75rem 0.35rem; }
.layer-opacity.vis { display: block; }
.vector-opacity { display: none; padding: 0 0.75rem 0.35rem 1.75rem; }
.vector-opacity.vis { display: block; }
.vec-hint { display:none; font-size:0.68rem; line-height:1.3; padding:0.1rem 0.75rem 0.1rem 1.6rem; }
.vec-hint:not(:empty) { display:block; }
.vec-theme-group { border-bottom: 1px solid #f1f5f9; }
#sb-panel .vec-theme-hdr {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border: 0;
  border-left: 2px solid transparent;
  border-radius: 0;
  background: #ffffff;
  color: #64748b;
  padding: 0.38rem 0.75rem 0.38rem 0.62rem;
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
#sb-panel .vec-theme-hdr:hover { background: #f8fafc; color: #475569; border-color: transparent; }
#sb-panel .vec-theme-hdr.open {
  border-left-color: #38bdf8;
  background: #f8fafc;
  color: #334155;
}
.vec-theme-chevron { transition: transform 0.15s; }
.vec-theme-hdr.open .vec-theme-chevron { transform: rotate(180deg); }
.vec-theme-body { display: none; padding: 0.2rem 0 0.32rem; }
.vec-theme-body.open { display: block; }
#sb-panel .vec-strat-hdr {
  width: 100%; display: flex; align-items: center; justify-content: space-between;
  border: 0; border-radius: 0; background: #e2e8f0; color: #1e293b;
  padding: 0.3rem 0.75rem; font-size: 0.625rem; font-weight: 700;
  letter-spacing: 0.07em; text-transform: uppercase; cursor: pointer;
}
#sb-panel .vec-strat-hdr:hover { background: #cbd5e1; }
.seis-hit-nav { display: flex; gap: 0.3rem; flex-wrap: wrap; margin-bottom: 0.45rem; }
.seis-hit-btn {
  border: 1px solid #cbd5e1;
  border-radius: 999px;
  background: #ffffff;
  color: #334155;
  font-size: 0.68rem;
  line-height: 1;
  padding: 0.2rem 0.5rem;
}
.seis-hit-btn.active {
  background: #0369a1;
  border-color: #0369a1;
  color: #ffffff;
}
.rast-hit-nav { display: flex; gap: 0.3rem; flex-wrap: wrap; margin-bottom: 0.45rem; }
.rast-hit-btn {
  border: 1px solid #cbd5e1;
  border-radius: 999px;
  background: #ffffff;
  color: #334155;
  font-size: 0.68rem;
  line-height: 1;
  padding: 0.2rem 0.5rem;
}
.rast-hit-btn.active {
  background: #0f766e;
  border-color: #0f766e;
  color: #ffffff;
}
#sb-feature-panel { flex: 0 0 auto; border-top: 1px solid #e2e8f0;
  max-height: 40%; overflow-y: auto; background: #f8fafc; color: #334155; font-size: 0.75rem; }
/* Cesium canvas wrapper */
#sb-cesium-wrap { position: relative; width: 100%; height: 100%; overflow: hidden; }
#cesiumContainer { position: absolute; inset: 0; }
/* Well / wellbore tophole labels (DOM overlay, shown at z9+) */
.well-surface-label {
  position: absolute; left: 0; top: 0;
  color: #38bdf8;
  font: 9pt 'Segoe UI', sans-serif;
  text-shadow: 0 0 1px rgba(0,0,0,0.95), 0 0 2px rgba(0,0,0,0.85);
  white-space: nowrap; will-change: transform;
  display: none; pointer-events: none;
}
#ft-hover-label, #hc-hover-label { color: #ffffff; }
/* Camera HUD -- always-visible bottom-centre readout */
#sb-cam-hud {
  position: absolute; bottom: 0.4rem; left: 50%; transform: translateX(-50%);
  z-index: 12; pointer-events: none;
  background: rgba(15,23,42,0.82); color: #94a3b8;
  font-size: 0.68rem; font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  padding: 0.22rem 0.75rem; border-radius: 0.25rem;
  border: 1px solid #334155; white-space: nowrap;
  display: flex; gap: 1.1rem; align-items: center;
}
#sb-cam-hud .hud-sep { color: #475569; }
/* Navigation mode HUD -- bottom-left, shown during fly-to hover and D-lock orbit */
#nav-hud {
  position: absolute; bottom: 0.4rem; left: 0.6rem;
  z-index: 12; pointer-events: none; display: none;
  background: rgba(15,23,42,0.88); color: #94a3b8;
  font-size: 0.68rem; font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  padding: 0.22rem 0.75rem; border-radius: 0.25rem;
  border: 1px solid #334155; white-space: nowrap;
  gap: 0.7rem; align-items: center;
}
#nav-hud.visible { display: flex; }
#nav-hud .nh-key {
  display: inline-block;
  background: #1e293b; color: #e2e8f0;
  border: 1px solid #475569; border-radius: 0.2rem;
  padding: 0 0.3rem; font-size: 0.65rem; line-height: 1.4;
}
#nav-hud .nh-sep { color: #475569; }
#nav-hud.orbit { border-color: #38bdf8; color: #7dd3fc; }
#nav-hud.orbit .nh-key { border-color: #38bdf8; color: #bae6fd; }
/* Terrain LOD zoom indicator (kept for legacy references) */
#sb-zoom-indicator { display: none; }
/* Hover tooltip */
#sb-tooltip {
  position: absolute; pointer-events: none; z-index: 10;
  background: rgba(15,23,42,0.92); color: #e2e8f0; font: 0.72rem 'Segoe UI', sans-serif;
  padding: 0.3rem 0.55rem; border-radius: 0.3rem; white-space: pre;
  border: 1px solid #334155; display: none;
}
#sb-tooltip.rich { white-space: normal; max-width: 220px; }
/* Loading overlay */
#sb-loading {
  position: absolute; inset: 0; background: rgba(15,23,42,0.75);
  display: none; align-items: center; justify-content: center; z-index: 20; color: #e2e8f0;
  font-size: 0.85rem; gap: 0.5rem;
}
#sb-loading.vis { display: flex; }
#sb-debug-panel {
  position: absolute; right: 0.75rem; top: 0.75rem; z-index: 15;
  width: 22rem; max-height: 46vh; overflow: auto; display: none;
  background: rgba(15,23,42,0.94); color: #e2e8f0;
  border: 1px solid #334155; border-radius: 0.4rem;
  padding: 0.55rem 0.65rem; box-shadow: 0 8px 30px rgba(0,0,0,0.35);
}
#sb-debug-panel.vis { display: block; }
#sb-debug-panel pre {
  margin: 0; white-space: pre-wrap; word-break: break-word;
  font-size: 0.69rem; line-height: 1.4;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}
/* Raster Control Panel */
#sb-raster-ctrl-panel {
  position: absolute;
  right: 0.75rem;
  top: 0.75rem;
  z-index: 16;
  width: 20rem;
  max-height: calc(100vh - 1.5rem);
  display: none;
  flex-direction: column;
  background: #ffffff;
  color: #334155;
  border: 1px solid #e2e8f0;
  border-radius: 0.5rem;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.2);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 0.75rem;
}
#sb-raster-ctrl-panel.vis { display: flex; }
#sb-raster-ctrl-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.45rem 0.6rem;
  border-bottom: 1px solid #f1f5f9;
  background: #f8fafc;
  font-size: 0.68rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: #64748b;
  font-weight: 600;
  cursor: move;
  user-select: none;
  touch-action: none;
  flex-shrink: 0;
}
#sb-raster-ctrl-panel-close {
  border: 1px solid #cbd5e1;
  border-radius: 0.3rem;
  background: #ffffff;
  color: #475569;
  width: 1.25rem;
  height: 1.25rem;
  line-height: 1;
  padding: 0;
  font-size: 0.8rem;
  cursor: pointer;
}
#sb-raster-ctrl-panel-close:hover { background: #f1f5f9; color: #334155; }
#sb-raster-ctrl-topbar {
  padding: 0.4rem 0.65rem;
  border-bottom: 1px solid #f1f5f9;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.72rem;
  flex-shrink: 0;
}
#sb-raster-ctrl-body { flex: 1; overflow-y: auto; min-height: 0; }
.rc-cat-details { border-bottom: 1px solid #f1f5f9; }
.rc-cat-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.35rem 0.65rem;
  cursor: pointer;
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: #475569;
  background: #f8fafc;
  user-select: none;
  list-style: none;
}
.rc-cat-summary::-webkit-details-marker { display: none; }
.rc-cat-summary:hover { background: #f1f5f9; }
.rc-cat-badge {
  background: #e2e8f0; color: #64748b; border-radius: 999px;
  font-size: 0.6rem; padding: 0.1rem 0.45rem; font-weight: 600;
}
.rc-raster-row { padding: 0.3rem 0.65rem; border-top: 1px solid #f8fafc; }
.rc-raster-row:hover { background: #fafafa; }
.rc-raster-toggle-row { display: flex; align-items: center; gap: 0.5rem; }
.rc-raster-name {
  flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis;
  white-space: nowrap; font-size: 0.75rem; color: #334155;
}
/* Pill toggle switch */
.rc-toggle { position: relative; display: inline-block; width: 2.1rem; height: 1.15rem; flex-shrink: 0; }
.rc-toggle input { opacity: 0; width: 0; height: 0; position: absolute; }
.rc-toggle-slider {
  position: absolute; inset: 0; background: #cbd5e1;
  border-radius: 999px; cursor: pointer; transition: background 0.15s;
}
.rc-toggle-slider::before {
  content: ''; position: absolute; width: 0.85rem; height: 0.85rem;
  left: 0.15rem; top: 50%; transform: translateY(-50%);
  background: #ffffff; border-radius: 50%; transition: transform 0.15s;
}
.rc-toggle input:checked + .rc-toggle-slider { background: #0ea5e9; }
.rc-toggle input:checked + .rc-toggle-slider::before { transform: translate(0.9rem, -50%); }
.rc-raster-controls { margin-top: 0.35rem; padding-left: 2.6rem; }
.rc-ctrl-label { font-size: 0.67rem; color: #64748b; margin-bottom: 0.1rem; margin-top: 0.2rem; }
.rc-ctrl-select {
  width: 100%; font-size: 0.72rem; margin-bottom: 0.25rem;
  border: 1px solid #cbd5e1; border-radius: 0.25rem;
  padding: 0.2rem 0.3rem; background: #fff; color: #334155;
}
.rc-ctrl-range { width: 100%; accent-color: #38bdf8; margin-bottom: 0.25rem; }
#sb-ft-panel {
  position: absolute;
  right: 0.75rem;
  top: 3.5rem;
  z-index: 15;
  width: 16rem;
  max-height: 70vh;
  overflow-y: auto;
  display: none;
  background: #ffffff;
  color: #334155;
  border: 1px solid #e2e8f0;
  border-radius: 0.5rem;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.2);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 0.75rem;
}
#sb-ft-panel.vis { display: block; }
#sb-ft-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.45rem 0.6rem;
  border-bottom: 1px solid #f1f5f9;
  background: #f8fafc;
  font-size: 0.68rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: #64748b;
  font-weight: 600;
  cursor: move;
  user-select: none;
  touch-action: none;
}
#sb-ft-panel-close {
  border: 1px solid #cbd5e1;
  border-radius: 0.3rem;
  background: #ffffff;
  color: #475569;
  width: 1.25rem;
  height: 1.25rem;
  line-height: 1;
  padding: 0;
  font-size: 0.8rem;
}
#sb-ft-panel-close:hover { background: #f1f5f9; color: #334155; }
#sb-ft-panel-content { padding: 0.5rem 0.75rem; font-size: 0.72rem; }
/* Formation tops era accordion */
.ft-era-section { border-bottom: 1px solid #f1f5f9; }
.ft-era-section:last-child { border-bottom: 0; }
.ft-era-hdr {
  display: flex; align-items: center; gap: 0.3rem;
  padding: 0.2rem 0; cursor: pointer; user-select: none;
}
.ft-era-hdr:hover .ft-era-name { color: #1e293b; }
.ft-era-chev {
  font-size: 0.55rem; color: #94a3b8; transition: transform 0.15s;
  flex-shrink: 0; width: 0.75rem; text-align: center; display: inline-block;
}
.ft-era-section.open .ft-era-chev { transform: rotate(90deg); }
.ft-era-name { flex: 1; font-size: 0.72rem; color: #475569; }
.ft-era-cnt { font-size: 0.63rem; color: #94a3b8; margin-left: 0.2rem; flex-shrink: 0; }
.ft-era-body { display: none; padding-left: 1.1rem; padding-bottom: 0.15rem; }
.ft-era-section.open .ft-era-body { display: block; }
.ft-series-row {
  display: flex; align-items: center; gap: 0.3rem;
  padding: 0.08rem 0; font-size: 0.67rem; color: #64748b; cursor: pointer;
  white-space: nowrap;
}
.ft-series-row:hover { color: #334155; }
.ft-series-name { flex: 1; overflow: hidden; text-overflow: ellipsis; }
.ft-series-cnt { font-size: 0.62rem; color: #94a3b8; flex-shrink: 0; }
/* Geological Volumes Panel */
#sb-geovol-panel {
  position: absolute;
  right: 0.75rem;
  top: 0.75rem;
  z-index: 16;
  width: 18rem;
  max-height: calc(100vh - 1.5rem);
  display: none;
  flex-direction: column;
  background: #ffffff;
  color: #334155;
  border: 1px solid #e2e8f0;
  border-radius: 0.5rem;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.2);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 0.75rem;
}
#sb-geovol-panel.vis { display: flex; }
#sb-geovol-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.45rem 0.6rem;
  border-bottom: 1px solid #f1f5f9;
  background: #f8fafc;
  font-size: 0.68rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: #64748b;
  font-weight: 600;
  cursor: move;
  user-select: none;
  touch-action: none;
  flex-shrink: 0;
}
#sb-geovol-panel-close {
  border: 1px solid #cbd5e1;
  border-radius: 0.3rem;
  background: #ffffff;
  color: #475569;
  width: 1.25rem;
  height: 1.25rem;
  line-height: 1;
  padding: 0;
  font-size: 0.8rem;
  cursor: pointer;
}
#sb-geovol-panel-close:hover { background: #f1f5f9; color: #334155; }
#sb-geovol-panel-body { flex: 1; overflow-y: auto; min-height: 0; padding: 0.5rem 0.75rem; }
#sb-geovol-hint { font-size: 0.68rem; color: #64748b; line-height: 1.3; margin-top: 0.35rem; }
#sb-geovol-legend {
  flex-shrink: 0;
  padding: 0.4rem 0.75rem 0.5rem;
  border-top: 1px solid #f1f5f9;
  max-height: 11rem;
  overflow-y: auto;
}
/* Cross-Section Panel */
#sb-section-panel {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  top: 0.75rem;
  z-index: 17;
  width: 54rem;
  max-width: calc(100% - 1.5rem);
  max-height: calc(100vh - 1.5rem);
  display: none;
  flex-direction: column;
  background: #ffffff;
  color: #334155;
  border: 1px solid #e2e8f0;
  border-radius: 0.5rem;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.2);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 0.75rem;
}
#sb-section-panel.vis { display: flex; }
#sb-section-panel-head {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 0.6rem;
  border-bottom: 1px solid #f1f5f9;
  background: #f8fafc;
  font-size: 0.68rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: #64748b;
  font-weight: 600;
  cursor: move;
  user-select: none;
  touch-action: none;
  flex-shrink: 0;
}
#sb-section-draw-btn {
  margin-left: auto;
  margin-right: 0.25rem;
  border: 1px solid #38bdf8;
  border-radius: 0.3rem;
  background: #f0f9ff;
  color: #0369a1;
  font-size: 0.68rem;
  font-weight: 600;
  cursor: pointer;
  padding: 0 0.4rem;
  height: 1.35rem;
  line-height: 1.35rem;
  text-transform: none;
  letter-spacing: 0;
}
#sb-section-draw-btn:hover { background: #e0f2fe; }
#sb-section-draw-btn.drawing { background: #fef3c7; border-color: #f59e0b; color: #92400e; }
#sb-section-clear-btn {
  margin-right: 0.3rem;
  border: 1px solid #e2e8f0;
  border-radius: 0.3rem;
  background: #fff;
  color: #64748b;
  font-size: 0.68rem;
  font-weight: 500;
  cursor: pointer;
  padding: 0 0.4rem;
  height: 1.35rem;
  line-height: 1.35rem;
  text-transform: none;
  letter-spacing: 0;
}
#sb-section-clear-btn:hover { background: #fef2f2; border-color: #fca5a5; color: #dc2626; }
#sb-section-panel-close {
  border: 1px solid #cbd5e1;
  border-radius: 0.3rem;
  background: #ffffff;
  color: #475569;
  width: 1.25rem;
  height: 1.25rem;
  line-height: 1;
  padding: 0;
  font-size: 0.8rem;
  cursor: pointer;
}
#sb-section-panel-close:hover { background: #f1f5f9; color: #334155; }
#sb-section-draw-hint {
  display: none;
  padding: 0.4rem 0.75rem;
  font-size: 0.68rem;
  color: #0369a1;
  background: #f0f9ff;
  border-bottom: 1px solid #bae6fd;
  line-height: 1.4;
  text-transform: none;
  letter-spacing: 0;
}
#sb-section-list { flex: 1; overflow-y: auto; min-height: 0; padding: 0.25rem 0; }
.section-entry {
  border-bottom: 1px solid #f1f5f9;
  padding: 0.3rem 0.75rem;
}
.section-entry:last-child { border-bottom: 0; }
.section-entry-head {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.7rem;
  font-weight: 600;
  color: #334155;
  margin-bottom: 0.2rem;
}
.section-vol-row {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.68rem;
  color: #475569;
  padding: 0.1rem 0;
}
.section-vol-row select {
  flex: 1;
  font-size: 0.65rem;
  border: 1px solid #e2e8f0;
  border-radius: 0.2rem;
  padding: 0 0.2rem;
  background: #fff;
  color: #334155;
}
#sb-ft-filter-btn {
  padding: 0.18rem 0.38rem;
  border: 1px solid #cbd5e1;
  border-radius: 0.25rem;
  background: #fff;
  color: #64748b;
  cursor: pointer;
  line-height: 0;
}
#sb-ft-filter-btn:hover { background: #f1f5f9; color: #334155; }
#sb-ft-filter-btn.active { background: #0ea5e9; color: #fff; border-color: #0284c7; }
.spinner {
  width: 1.25rem; height: 1.25rem; border: 2px solid #334155;
  border-top-color: #38bdf8; border-radius: 50%; animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
/* Accordion chevron */
.acc-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.36rem 0.75rem;
  cursor: pointer;
  user-select: none;
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: #64748b;
  line-height: 1.2;
}
.acc-header:hover { background: #f8fafc; }
.acc-chev { transition: transform 0.15s; }
.acc-chev.open { transform: rotate(180deg); }
/* Cesium widget overrides */
.cesium-widget-credits { display: none !important; }