.vtb-basemap-control {
  --vtb-bg: rgba(255, 255, 255, 0.95);
  --vtb-border: rgba(148, 163, 184, 0.45);
  --vtb-fg: #0f172a;
  --vtb-muted: #64748b;
  --vtb-accent: #0f766e;
  --vtb-shadow: 0 12px 28px rgba(15, 23, 42, 0.18);
  backdrop-filter: blur(12px);
  background: var(--vtb-bg);
  border: 1px solid var(--vtb-border);
  border-radius: 18px;
  box-shadow: var(--vtb-shadow);
  color: var(--vtb-fg);
  display: block;
  font: 12px/1.2 "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  min-width: 180px;
  overflow: visible;
  padding: 10px;
  position: relative;
}

.maplibregl-ctrl-group.vtb-basemap-control {
  overflow: visible;
}

.vtb-basemap-control * {
  box-sizing: border-box;
}

.vtb-basemap-control .vtb-toggle {
  align-items: center;
  appearance: none;
  background: none;
  border: 0;
  border-radius: 16px;
  box-shadow: none;
  color: inherit;
  cursor: pointer;
  display: flex;
  gap: 8px;
  height: auto;
  min-height: 60px;
  padding: 0;
  width: 100%;
}

.vtb-basemap-control .vtb-toggle:disabled,
.vtb-basemap-control .vtb-button:disabled {
  cursor: wait;
  opacity: 0.7;
}

.vtb-basemap-control .vtb-toggle:focus-visible {
  border-radius: 16px;
  box-shadow: none;
  outline: 2px solid var(--vtb-accent);
  outline-offset: 3px;
}

.vtb-basemap-control .vtb-button:focus-visible {
  border-color: var(--vtb-accent);
  box-shadow: 0 8px 18px rgba(15, 118, 110, 0.2);
  outline: none;
  transform: translateY(-1px);
}

.vtb-active-tile {
  border: 2px solid rgba(15, 118, 110, 0.88);
  border-radius: 16px;
  box-shadow: 0 10px 22px rgba(15, 118, 110, 0.18);
  display: block;
  flex: 0 0 auto;
  height: 64px;
  overflow: hidden;
  position: relative;
  width: 64px;
}

.vtb-toggle-meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
  text-align: left;
}

.vtb-toggle-name {
  color: var(--vtb-fg);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.02em;
  max-width: 148px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.vtb-toggle-group {
  color: var(--vtb-muted);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.vtb-toggle-caret {
  color: var(--vtb-accent);
  flex: 0 0 auto;
  font-size: 18px;
  font-weight: 700;
  line-height: 1;
  margin-left: auto;
  transform-origin: center;
  transition: transform 140ms ease;
}

.vtb-basemap-control[data-open="true"] .vtb-toggle-caret {
  transform: rotate(180deg);
}

.vtb-panel {
  background: rgba(255, 255, 255, 0.98);
  border: 1px solid rgba(226, 232, 240, 0.9);
  border-radius: 18px;
  bottom: 100%;
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.16);
  display: grid;
  gap: 12px;
  left: 0;
  margin-bottom: 10px;
  max-height: min(60vh, 420px);
  min-width: 180px;
  overflow: auto;
  padding: 12px;
  position: absolute;
  width: max-content;
  z-index: 1;
}

.maplibregl-ctrl-top-left .vtb-basemap-control .vtb-panel,
.maplibregl-ctrl-top-right .vtb-basemap-control .vtb-panel {
  bottom: auto;
  margin-bottom: 0;
  margin-top: 10px;
  top: 100%;
}

.maplibregl-ctrl-top-right .vtb-basemap-control .vtb-panel,
.maplibregl-ctrl-bottom-right .vtb-basemap-control .vtb-panel {
  left: auto;
  right: 0;
}

.maplibregl-ctrl-top-left .vtb-basemap-control .vtb-panel,
.maplibregl-ctrl-bottom-left .vtb-basemap-control .vtb-panel {
  left: 0;
  right: auto;
}

.vtb-panel[hidden] {
  display: none;
}

.vtb-group {
  display: grid;
  gap: 8px;
}

.vtb-group-title {
  color: var(--vtb-muted);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.vtb-grid {
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(2, 64px);
}

.vtb-basemap-control .vtb-button {
  appearance: none;
  background: #fff;
  border: 2px solid transparent;
  border-radius: 16px;
  box-shadow: none;
  cursor: pointer;
  display: block;
  height: 64px;
  overflow: hidden;
  padding: 0;
  position: relative;
  transition: transform 140ms ease, border-color 140ms ease, box-shadow 140ms ease;
  width: 64px;
}

.vtb-basemap-control .vtb-button + .vtb-button {
  border-top: 2px solid transparent;
}

.vtb-basemap-control .vtb-button:hover {
  border-color: var(--vtb-accent);
  box-shadow: 0 8px 18px rgba(15, 118, 110, 0.2);
  transform: translateY(-1px);
}

.vtb-basemap-control .vtb-button[data-previewed="true"] {
  border-color: var(--vtb-accent);
  box-shadow: 0 0 0 1px rgba(15, 118, 110, 0.4);
}

.vtb-basemap-control .vtb-button[data-selected="true"] {
  border-color: rgba(15, 118, 110, 0.88);
  box-shadow: 0 0 0 2px rgba(15, 118, 110, 0.22);
}

.vtb-thumb {
  display: block;
  height: 100%;
  inset: 0;
  overflow: hidden;
  position: absolute;
  width: 100%;
}

.vtb-thumb-image {
  background-position: center;
  background-size: cover;
  display: block;
  height: 100%;
  object-fit: cover;
  width: 100%;
}

.vtb-thumb--fallback::after {
  align-items: center;
  color: rgba(15, 23, 42, 0.8);
  content: attr(data-short-label);
  display: flex;
  font-size: 12px;
  font-weight: 700;
  height: 100%;
  justify-content: center;
  letter-spacing: 0.04em;
  width: 100%;
}

@media (max-width: 520px) {
  .vtb-panel {
    max-width: calc(100vw - 24px);
  }

  .vtb-toggle-name {
    max-width: 104px;
  }
}