:root {
  color-scheme: light;
  --page: rgb(255, 253, 249);
  --paper: rgb(255, 253, 249);
  --paper-soft: #f7f7f5;
  --ink: #000000;
  --muted: #39414d;
  --secondary: #6d6d6d;
  --rule: #d1d1d1;
  --rule-soft: #e5e5e5;
  --gray-blue: #abb8c3;
  --blue: #2f5f7f;
  --blue-soft: #d1dfe4;
  --warning: #7a6100;
  --warning-soft: #f1e7bd;
  --content-width: 1440px;
  --gutter: 32px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--page);
  color: var(--ink);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--page);
  font-size: 16px;
  font-weight: 300;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  min-height: 40px;
  padding: 7px 12px;
  border: 1px solid var(--rule);
  border-radius: 0;
  background: var(--page);
  color: var(--ink);
  font-weight: 300;
  cursor: pointer;
}

a {
  color: var(--blue);
  text-underline-offset: 0.18em;
}

:focus-visible {
  outline: 2px solid rgba(47, 95, 127, 0.35);
  outline-offset: 2px;
}

[hidden] {
  display: none !important;
}

.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 14px;
  background: var(--ink);
  color: white;
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.loading,
.error-panel {
  width: min(520px, calc(100% - 32px));
  margin: 18vh auto;
  padding: 28px;
  border: 1px solid var(--rule);
  background: var(--paper);
}

.loading {
  text-align: center;
  color: var(--muted);
}

.error-panel strong {
  font-size: 1.2rem;
}

.error-panel button {
  padding: 9px 14px;
  border-color: var(--gray-blue);
  background: var(--blue-soft);
  color: var(--ink);
}

main,
.footer-inner {
  width: min(var(--content-width), calc(100% - var(--gutter) * 2));
  margin: 0 auto;
}

main {
  padding: 24px 0 48px;
}

.intro {
  display: grid;
  grid-template-columns: minmax(660px, 0.96fr) minmax(420px, 1.04fr);
  align-items: start;
  gap: 32px;
  margin-bottom: 18px;
}

.intro h1 {
  max-width: 720px;
  margin: 0 0 10px;
  font-size: clamp(2.1rem, 4vw, 3.7rem);
  font-weight: 300;
  letter-spacing: 0;
  line-height: 1;
  white-space: nowrap;
}

.intro p {
  max-width: 670px;
  margin: 0;
  color: var(--muted);
  font-size: 0.93rem;
  line-height: 1.45;
}

.combobox-wrap {
  position: relative;
}

.search-icon {
  position: absolute;
  top: 50%;
  left: 18px;
  z-index: 1;
  width: 20px;
  height: 20px;
  fill: none;
  stroke: var(--muted);
  stroke-linecap: round;
  stroke-width: 1.75;
  transform: translateY(-50%);
  pointer-events: none;
}

#band-search {
  width: 100%;
  height: 48px;
  padding: 0 48px;
  border: 1px solid var(--gray-blue);
  border-radius: 0;
  background: var(--paper);
  color: var(--ink);
  font-size: 1rem;
}

#band-search::-webkit-search-cancel-button {
  appearance: none;
}

.search-clear {
  position: absolute;
  top: 50%;
  right: 8px;
  z-index: 2;
  width: 32px;
  min-width: 32px;
  height: 32px;
  min-height: 32px;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--secondary);
  font-size: 1.25rem;
  line-height: 1;
  transform: translateY(-50%);
}

.search-clear:hover {
  background: var(--rule-soft);
  color: var(--ink);
}

#band-search::placeholder {
  color: #8a877f;
}

.search-results {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  left: 0;
  z-index: 20;
  max-height: 410px;
  margin: 0;
  padding: 5px;
  overflow-y: auto;
  list-style: none;
  border: 1px solid var(--gray-blue);
  background: var(--paper);
}

.search-option {
  display: grid;
  grid-template-columns: 52px minmax(120px, 1fr) minmax(150px, auto);
  align-items: baseline;
  gap: 12px;
  padding: 11px 12px;
  border-bottom: 1px solid var(--rule-soft);
  cursor: pointer;
}

.search-option:last-child {
  border-bottom: 0;
}

.search-option[aria-selected="true"],
.search-option:hover {
  background: var(--blue-soft);
}

.search-option strong {
  min-width: 0;
  overflow: hidden;
  font-size: 0.95rem;
  font-weight: 400;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.search-option-type {
  padding: 2px 5px;
  border: 1px solid var(--rule);
  color: var(--blue);
  font-size: 0.64rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  text-align: center;
  text-transform: uppercase;
}

.search-option-type.type-place {
  border-color: var(--warning);
  background: var(--warning-soft);
  color: var(--warning);
}

.search-option-context {
  color: var(--muted);
  font-size: 0.78rem;
  text-align: right;
}

.comparison-toggle,
.metric-toggle {
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}

.segmented-control {
  display: flex;
  min-height: 40px;
  padding: 0;
  border: 1px solid var(--rule);
  background: var(--rule-soft);
}

.segmented-control button {
  min-height: 38px;
  padding: 7px 13px;
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 300;
}

.segmented-control button + button {
  border-left: 1px solid var(--rule);
}

#band-search:hover,
.map-controls button:hover,
.external-link:hover {
  border-color: var(--muted);
}

.segmented-control button:hover {
  color: var(--ink);
}

.segmented-control button[aria-pressed="true"] {
  background: var(--blue-soft);
  color: var(--ink);
}

.explorer-grid {
  --workspace-header-height: 120px;
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(350px, 0.75fr);
  gap: 20px;
  align-items: start;
}

.map-card,
.detail-card {
  min-width: 0;
  border: 1px solid var(--rule);
  background: var(--paper);
}

.map-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.card-header {
  display: flex;
  align-items: flex-start;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 18px;
  min-height: var(--workspace-header-height);
  padding: 17px 18px 14px;
  border-bottom: 1px solid var(--rule);
}

.map-header-tools {
  display: flex;
  flex: 0 1 auto;
  align-items: flex-end;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px;
  min-width: 0;
  max-width: 100%;
}

.comparison-toggle legend,
.metric-toggle legend {
  display: block;
  margin: 0 0 5px;
  color: var(--ink);
  font-size: 0.64rem;
  font-weight: 300;
  letter-spacing: 0;
}

.comparison-toggle .segmented-control,
.metric-toggle .segmented-control {
  min-height: 34px;
}

.comparison-toggle .segmented-control button,
.metric-toggle .segmented-control button {
  min-height: 32px;
  padding: 5px 8px;
  font-size: 0.74rem;
}

.card-header h2,
.chart-header h2,
.detail-header h2,
.detail-empty h2,
.method-note h2 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 300;
  letter-spacing: 0;
}

.card-header .map-place-label {
  margin: 0 0 3px;
  color: var(--muted);
  font-size: 0.64rem;
  font-weight: 300;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.card-header #map-place-title {
  font-size: 1.25rem;
}

.card-header p,
.chart-header > p,
.detail-empty p {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.4;
}

.map-controls {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 6;
  display: flex;
  flex: none;
  gap: 4px;
}

.map-controls button {
  min-width: 34px;
  min-height: 34px;
  padding: 5px 9px;
  border: 1px solid var(--rule);
  background: var(--paper);
  color: var(--ink);
}

.map-controls button[aria-pressed="true"] {
  border-color: var(--gray-blue);
  background: var(--blue-soft);
}

.map-frame {
  position: relative;
  flex: none;
  height: 540px;
  overflow: hidden;
  background: var(--paper-soft);
}

.map-attribution {
  margin: 0;
  padding: 7px 12px 8px;
  border-top: 1px solid var(--rule);
  color: var(--ink);
  font-size: 0.5rem;
  font-weight: 300;
  text-align: right;
}

.map-attribution a {
  color: inherit;
}

.uk-map {
  display: block;
  width: 100%;
  height: 100%;
  cursor: grab;
  touch-action: none;
}

.uk-map.is-panning {
  cursor: grabbing;
}

.uk-map.is-area-selecting {
  cursor: crosshair;
}

.uk-outline {
  fill: #edeeeb;
  stroke: #a8aba7;
  stroke-width: 0.7;
  vector-effect: non-scaling-stroke;
}

.map-area-selection {
  display: none;
  fill: rgba(47, 95, 127, 0.12);
  stroke: var(--blue);
  stroke-dasharray: 4 3;
  stroke-width: 1;
  pointer-events: none;
}

.map-area-selection.is-visible {
  display: block;
}

.map-marker {
  cursor: pointer;
}

.marker-hit {
  fill: transparent;
}

.marker-dot {
  fill: var(--secondary);
  fill-opacity: 0.34;
  stroke: var(--paper);
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
}

.map-marker.is-area-selected .marker-dot {
  fill: var(--blue-soft);
  fill-opacity: 0.9;
  stroke: var(--blue);
  stroke-width: 1.5;
}

.marker-ring {
  display: none;
  fill: var(--blue-soft);
  fill-opacity: 0.78;
  stroke: var(--blue);
  stroke-width: 2;
  vector-effect: non-scaling-stroke;
}

.marker-tick {
  display: none;
  fill: none;
  stroke: var(--blue);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
  transform: scale(var(--map-inverse-zoom));
  transform-box: fill-box;
  transform-origin: center;
}

.map-marker.is-selected .marker-ring,
.map-marker.is-selected .marker-tick {
  display: block;
}

.map-marker.is-selected .marker-dot {
  display: none;
}

.map-marker:focus-visible {
  outline: none;
}

.map-marker:focus-visible .marker-dot,
.map-marker:focus-visible .marker-ring {
  stroke: rgba(47, 95, 127, 0.35);
  stroke-width: 3.5;
}

.map-city-label {
  display: none;
  pointer-events: none;
}

.map-city-label.is-base,
.map-city-label.is-selected {
  display: block;
}

.map-city-label text {
  fill: #343a40;
  font-size: 8.5px;
  font-weight: 400;
  letter-spacing: 0;
  paint-order: stroke;
  stroke: rgba(255, 253, 249, 0.94);
  stroke-linejoin: round;
  stroke-width: 3px;
  vector-effect: non-scaling-stroke;
}

.map-city-label.is-selected text {
  fill: var(--blue);
}

.map-tooltip {
  position: absolute;
  z-index: 5;
  max-width: 280px;
  padding: 6px 8px;
  border: 1px solid var(--ink);
  background: rgba(255, 253, 249, 0.96);
  color: var(--ink);
  font-size: 0.625rem;
  font-weight: 300;
  line-height: 1.35;
  transform: translate(-50%, calc(-100% - 10px));
  backdrop-filter: blur(2px);
  pointer-events: none;
}

.map-bubble-legend {
  position: absolute;
  bottom: 12px;
  left: 12px;
  z-index: 4;
  max-width: calc(100% - 24px);
  padding: 9px 10px;
  border: 1px solid rgba(0, 0, 0, 0.56);
  background: rgba(255, 253, 249, 0.9);
  color: var(--ink);
  backdrop-filter: blur(2px);
  pointer-events: none;
}

.map-bubble-legend strong {
  display: block;
  margin-bottom: 7px;
  font-size: 0.5rem;
  font-weight: 300;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.bubble-legend-items {
  display: flex;
  align-items: flex-end;
  gap: 12px;
}

.bubble-legend-item {
  display: grid;
  justify-items: center;
  gap: 4px;
  color: var(--muted);
  font-size: 0.56rem;
  font-variant-numeric: tabular-nums;
}

.bubble-legend-item i {
  display: block;
  border: 1px solid var(--paper);
  border-radius: 50%;
  background: rgba(109, 109, 109, 0.38);
}

.detail-card {
  display: flex;
  flex-direction: column;
  padding: 18px;
}

.detail-empty {
  margin: 0;
  padding: 0 0 18px;
}

.detail-empty p {
  max-width: 420px;
  font-size: 0.9rem;
  line-height: 1.55;
}

.detail-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  min-height: calc(var(--workspace-header-height) - 18px);
  padding-bottom: 16px;
  border-bottom: 1px solid var(--rule);
}

.detail-header h2 {
  min-width: 0;
  font-size: clamp(1.55rem, 2.6vw, 2.55rem);
  font-weight: 300;
  letter-spacing: 0;
  line-height: 1.05;
}

.detail-header-meta {
  display: grid;
  flex: none;
  justify-items: end;
  gap: 8px;
}

.catalog-rank {
  margin: 0;
  text-align: right;
}

.catalog-rank dt {
  color: var(--muted);
  font-size: 0.64rem;
  font-weight: 300;
  letter-spacing: 0.035em;
  text-transform: uppercase;
}

.catalog-rank dd {
  margin: 3px 0 0;
  font-size: 1rem;
  font-variant-numeric: tabular-nums;
  font-weight: 400;
}

.metrics-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin: 0;
}

.metric {
  min-width: 0;
  padding: 13px 8px 15px 0;
  border-bottom: 1px solid var(--rule-soft);
}

.metric:nth-child(odd) {
  border-right: 1px solid var(--rule-soft);
}

.metric:nth-child(even) {
  padding-left: 16px;
}

.metric dt {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 300;
  letter-spacing: 0.035em;
  text-transform: uppercase;
}

.metric dd {
  margin: 7px 0 0;
  overflow-wrap: anywhere;
  font-size: clamp(1rem, 1.5vw, 1.32rem);
  font-variant-numeric: tabular-nums;
  font-weight: 400;
  letter-spacing: 0;
}

.external-links {
  display: flex;
  flex: none;
  flex-wrap: nowrap;
  gap: 6px;
  margin: 0;
}

.external-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  min-width: 34px;
  height: 34px;
  min-height: 34px;
  padding: 7px;
  border: 1px solid var(--gray-blue);
  background: var(--paper);
  color: var(--ink);
  text-decoration: none;
}

.external-link img {
  display: block;
}

.external-link::after {
  position: absolute;
  top: calc(100% + 6px);
  right: -1px;
  z-index: 10;
  visibility: hidden;
  padding: 6px 8px;
  border: 1px solid var(--gray-blue);
  background: rgba(255, 253, 249, 0.96);
  color: var(--ink);
  content: attr(data-label);
  font-size: 0.72rem;
  font-weight: 300;
  white-space: nowrap;
  pointer-events: none;
}

.external-link:hover::after,
.external-link:focus-visible::after {
  visibility: visible;
}

.chart-section {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--rule);
}

.chart-header {
  margin-bottom: 10px;
}

.chart-header h2 {
  font-size: 1rem;
}

.chart-header > .chart-note {
  width: fit-content;
  padding: 7px 10px;
  border-left: 3px solid var(--warning);
  background: var(--warning-soft);
  color: var(--warning);
}

.bar-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.bar-row {
  min-width: 0;
}

.bar-button {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr) auto;
  grid-template-rows: auto 5px;
  align-items: center;
  gap: 2px 8px;
  width: 100%;
  min-height: 34px;
  padding: 3px 4px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--ink);
  text-align: left;
}

.bar-button:hover {
  background: var(--rule-soft);
}

.bar-rank,
.bar-value {
  font-size: 0.8rem;
  font-variant-numeric: tabular-nums;
}

.bar-rank {
  grid-column: 1;
  grid-row: 1 / span 2;
  color: var(--muted);
  text-align: right;
}

.bar-identity {
  display: flex;
  grid-column: 2;
  grid-row: 1;
  min-width: 0;
  align-items: center;
  gap: 7px;
}

.bar-name {
  flex: 1;
  min-width: 0;
  font-size: 0.88rem;
  font-weight: 300;
  line-height: 1.2;
  overflow-wrap: anywhere;
}

.bar-track {
  display: block;
  grid-column: 2 / span 2;
  grid-row: 2;
  height: 5px;
  background: var(--rule-soft);
}

.bar-fill {
  display: block;
  height: 100%;
  background: var(--blue);
}

.bar-value {
  grid-column: 3;
  grid-row: 1;
  text-align: right;
}

.bar-selected-label {
  flex: none;
  color: var(--blue);
  font-size: 0.72rem;
  font-weight: 400;
}

.bar-row.is-selected .bar-button {
  border-color: var(--blue);
  background: var(--blue-soft);
}

.bar-row.is-comparison {
  margin-top: 9px;
  padding-top: 9px;
  border-top: 1px dashed var(--gray-blue);
}

.chart-empty {
  padding: 14px 0;
  color: var(--muted);
}

.chart-empty strong {
  color: var(--ink);
}

.chart-empty p {
  margin: 6px 0 0;
}

.method-note {
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr) auto;
  align-items: start;
  gap: 28px;
  margin-top: 36px;
  padding: 25px 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.method-note p {
  max-width: 850px;
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.6;
}

.method-note a {
  font-size: 0.82rem;
  white-space: nowrap;
}

.site-footer {
  padding: 38px 0 50px;
  border-top: 1px solid var(--rule);
  background: var(--paper-soft);
}

.footer-inner {
  color: var(--secondary);
  font-size: 0.76rem;
  line-height: 1.55;
}

.freshness-list,
.footer-source-block ul {
  display: flex;
  flex-wrap: wrap;
  gap: 7px 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.freshness-list li:not(:last-child)::after {
  margin-left: 18px;
  color: var(--gray-blue);
  content: "·";
}

.footer-inner p {
  margin: 9px 0 0;
}

.footer-provenance {
  overflow-wrap: anywhere;
  font-variant-numeric: tabular-nums;
}

.footer-source-block {
  display: flex;
  gap: 18px;
  margin-top: 18px;
  padding-top: 15px;
  border-top: 1px solid var(--rule);
}

.footer-source-block > span {
  flex: none;
  color: var(--ink);
  font-weight: 400;
}

@media (max-width: 1200px) {
  .intro {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .intro h1 {
    white-space: normal;
  }
}

@media (max-width: 1050px) {
  .explorer-grid {
    display: flex;
    flex-direction: column;
    align-items: stretch;
  }

  .card-header,
  .detail-header {
    min-height: 0;
  }

  .map-frame {
    height: 600px;
  }
}

@media (max-width: 790px) {
  :root {
    --gutter: 16px;
  }

  .intro h1 {
    font-size: clamp(2.3rem, 13vw, 3.8rem);
  }

  .segmented-control button {
    flex: 1;
  }

  .card-header {
    position: relative;
    display: block;
    padding: 14px 16px 12px;
  }

  .map-heading {
    min-height: 34px;
  }

  .map-header-tools {
    display: flex;
    width: auto;
    margin: 8px 0 0 auto;
  }

  .map-frame {
    height: 480px;
  }

  .method-note {
    grid-template-columns: 1fr;
    gap: 12px;
  }
}

@media (max-width: 470px) {
  .intro {
    margin-bottom: 20px;
  }

  #band-search {
    height: 54px;
    padding-right: 48px;
  }

  .map-header-tools {
    display: grid;
    width: 100%;
  }

  .search-option {
    grid-template-columns: 52px minmax(0, 1fr);
    gap: 4px 10px;
  }

  .search-option-type {
    grid-row: 1 / span 2;
  }

  .search-option-context {
    grid-column: 2;
    text-align: left;
  }

  .detail-card {
    padding: 20px 17px;
  }

  .metric dd {
    font-size: 1.1rem;
  }

  .footer-source-block {
    flex-direction: column;
    gap: 6px;
  }

  .freshness-list {
    display: block;
  }

  .freshness-list li + li {
    margin-top: 4px;
  }

  .freshness-list li::after {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}