:root {
  --page: #f3f7fa;
  --surface: #e8eff4;
  --ink: #172e43;
  --secondary: #496072;
  --accent: #167b83;
  --teal: #167b83;
  --alert: #ad462d;
  --muted: #5e7180;
  --rule: #d4dfe7;
  --serif: "Noto Serif SC", "Songti SC", serif;
  --sans: "Noto Sans SC", "PingFang SC", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}
body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  font-feature-settings: "palt";
}
a { color: var(--accent); text-underline-offset: 3px; }
a:hover { color: var(--secondary); }
a:focus-visible { outline: 2px solid var(--teal); outline-offset: 3px; }
img { max-width: 100%; height: auto; display: block; }

.neatline {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.55rem 1.25rem;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: none;
  color: #dce8ee;
  border-bottom: 1px solid var(--rule);
  background: #17364c;
}
.neatline span { white-space: nowrap; }
.neatline a { color: inherit; text-decoration: none; }
.neatline a:hover { color: var(--ink); }

.mast {
  padding: 2.2rem 1.25rem 1.4rem;
  max-width: 1200px;
  margin: 0 auto;
}
.mast .series {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: none;
  color: var(--accent);
  margin: 0 0 0.8rem;
}
.mast h1 {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(1.8rem, 4.5vw, 3.1rem);
  line-height: 1.2;
  letter-spacing: 0.02em;
  margin: 0 0 0.75rem;
}
.mast .lede {
  max-width: 42rem;
  color: var(--secondary);
  margin: 0;
  font-size: 1.02rem;
}
figure.hero {
  margin: 1.6rem 0 0;
  max-width: 720px;
  background: #fff;
  padding: 10px 10px 0;
  color: var(--ink);
}
figure.hero img {
  width: 100%;
  background: #1a1712;
  cursor: zoom-in;
}
figure.hero figcaption {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  padding: 0.55rem 2px 0.7rem;
}

#map {
  height: min(72vh, 720px);
  width: 100%;
  background: #1a1712;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.leaflet-container { background: #1a1712; font-family: var(--sans); }
.leaflet-popup-content-wrapper {
  background: var(--surface);
  color: var(--ink);
  border-radius: 10px;
  box-shadow: none;
  border: 1px solid var(--rule);
}
.leaflet-popup-tip { background: var(--surface); }
.leaflet-popup-content { margin: 0.7rem 0.85rem; font-size: 13px; }
.leaflet-popup-content strong { font-family: var(--serif); display: block; margin-bottom: 0.2rem; }
.leaflet-popup-content a { color: var(--secondary); }
.legend-chip {
  display: inline-block;
  width: 8px; height: 8px;
  margin-right: 6px;
  vertical-align: middle;
}

.map-caption {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0.7rem 1.25rem 0;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.04em;
}

.findings {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  background: transparent;
  border: 0;
}
.finding {
  background: #fff;
  padding: 1rem 1.1rem 1.15rem;
}
.finding .id {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.02em;
  color: var(--accent);
}
.finding h2 {
  font-family: var(--serif);
  font-size: 1.25rem;
  margin: 0.35rem 0 0.4rem;
  font-weight: 700;
}
.finding p { margin: 0; color: var(--secondary); font-size: 0.9rem; }
.badge {
  display: inline-block;
  margin-top: 0.65rem;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: none;
  padding: 0.18rem 0.45rem;
  border: 1px solid currentColor;
}
.badge.high { color: var(--alert); }
.badge.mid { color: var(--accent); }
.badge.site { color: var(--secondary); }
.badge.low { color: var(--muted); }

.site {
  display: grid;
  grid-template-columns: minmax(240px, 320px) 1fr;
  gap: 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
  padding: 2.6rem 1.25rem;
  border-bottom: 1px solid var(--rule);
  scroll-margin-top: 0.75rem;
}
.site-rail {
  position: sticky;
  top: 1rem;
  align-self: start;
}
.site-rail h2 {
  font-family: var(--serif);
  font-size: 1.7rem;
  margin: 0.3rem 0 0.5rem;
}
.coord {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--teal);
  letter-spacing: 0.04em;
  margin: 0;
}
.site-rail .meta { color: var(--secondary); margin: 0 0 1rem; }
.site-rail ul {
  padding-left: 1.1rem;
  color: var(--secondary);
  font-size: 0.92rem;
}
.ops {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: 1rem 0;
}
.ops span {
  font-family: var(--mono);
  font-size: 11px;
  padding: 0.2rem 0.45rem;
  background: var(--surface);
  color: var(--ink);
  border: 1px solid var(--rule);
}
.maps-link { font-family: var(--mono); font-size: 12px; }

.plates { display: grid; gap: 1.25rem; }
figure.plate {
  margin: 0;
  background: #fff;
  padding: 10px 10px 0;
  color: var(--ink);
}
figure.plate img {
  width: 100%;
  background: #1a1712;
  cursor: zoom-in;
}
figure.plate img.portrait {
  aspect-ratio: 1266 / 2010;
  object-fit: cover;
  object-position: top;
}
figure.plate img.sat {
  aspect-ratio: 1 / 1;
  object-fit: cover;
  object-position: center;
}
figure.plate figcaption {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  padding: 0.55rem 2px 0.7rem;
}

.method {
  max-width: 800px;
  margin: 0 auto;
  padding: 2.8rem 1.25rem 3.5rem;
}
.method h2 {
  font-family: var(--serif);
  font-size: 1.5rem;
  margin: 0 0 1rem;
}
.method h3 {
  font-family: var(--serif);
  font-size: 1.05rem;
  margin: 1.6rem 0 0.4rem;
}
.method li { margin: 0.3rem 0; color: var(--secondary); }
.exclude { color: var(--muted); }

.city-grid {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  background: transparent;
  border: 0;
}
.city-card {
  background: #fff;
  padding: 1.1rem 1.15rem 1.3rem;
  color: inherit;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  min-height: 220px;
}
.city-card:hover { background: var(--surface); color: var(--ink); }
.city-card .id {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.02em;
  color: var(--accent);
}
.city-card h2 {
  font-family: var(--serif);
  font-size: 1.45rem;
  margin: 0.4rem 0 0.45rem;
  font-weight: 700;
  color: var(--ink);
}
.city-card p { margin: 0; color: var(--secondary); font-size: 0.9rem; flex: 1; }
.city-card .go {
  margin-top: 1rem;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--accent);
}

footer {
  border-top: 1px solid var(--rule);
  padding: 1.2rem 1.25rem 2rem;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.04em;
}
footer div { max-width: 1200px; margin: 0 auto; }

.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(8, 7, 5, 0.92);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  z-index: 4000;
}
.lightbox.open { display: flex; }
.lightbox img { max-height: 92vh; max-width: 96vw; box-shadow: 0 0 0 8px var(--ink); }
.lightbox button {
  position: absolute;
  top: 1rem; right: 1rem;
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--secondary);
  font-family: var(--mono);
  padding: 0.4rem 0.7rem;
  cursor: pointer;
}

@media (max-width: 1100px) {
  .city-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 860px) {
  .findings { grid-template-columns: 1fr 1fr; }
  .site { grid-template-columns: 1fr; padding: 1.8rem 1rem; }
  .site-rail { position: static; }
  .neatline { font-size: 10px; padding: 0.5rem 0.8rem; gap: 0.6rem; }
  .neatline .hide-narrow { display: none; }
  .mast { padding: 1.5rem 1rem 1.1rem; }
}
@media (max-width: 560px) {
  .findings, .city-grid { grid-template-columns: 1fr; }
}

.city-nav{max-width:72rem;margin:2rem auto 0;padding:0 1.5rem;font-family:"IBM Plex Mono",monospace;font-size:.85rem;opacity:.85;line-height:1.8}
.city-nav span{margin-right:.75rem;margin-left:.85rem;opacity:.6}
.city-nav span:first-child{margin-left:0}
.city-nav a{text-decoration:none;border-bottom:1px dotted currentColor}

/* The atlas keeps navigation quiet and gives satellite evidence the largest canvas. */
button, select { font: inherit; }
button { cursor: pointer; }
button:focus-visible, [tabindex]:focus-visible { outline: 3px solid #167b83; outline-offset: 4px; }
.skip-link { position: absolute; top: -80px; left: 1rem; z-index: 5000; padding: .6rem 1rem; background: white; }
.skip-link:focus { top: 1rem; }
.neatline { padding: .9rem max(1.25rem, calc((100vw - 1200px) / 2)); font-family: var(--sans); letter-spacing: .02em; font-size: 12px; }
.neatline a:hover { color: white; }
.mast { padding-top: 3.5rem; padding-bottom: 2.5rem; }
.mast h1 { font-family: var(--sans); font-size: clamp(1.8rem, 3.6vw, 2.9rem); line-height: 1.35; letter-spacing: -.035em; }
.mast .series { font-family: var(--sans); letter-spacing: .02em; }
.mast .lede { line-height: 1.95; }
.mast:has(.hero) { display: grid; grid-template-columns: 1.25fr .75fr; column-gap: 3rem; grid-template-rows: auto auto 1fr; align-items: start; }
.mast:has(.hero) .series, .mast:has(.hero) h1, .mast:has(.hero) .lede { grid-column: 1; }
.mast:has(.hero) .hero { grid-column: 2; grid-row: 1 / 4; margin: 0; width: 100%; }
figure.hero, figure.plate { border: 1px solid var(--rule); border-radius: 8px; overflow: hidden; padding: 6px 6px 0; }
figure.hero img { max-height: 330px; object-fit: contain; background: #e8eff4; }
figure.plate figcaption, figure.hero figcaption { font-family: var(--sans); font-size: 12px; letter-spacing: 0; line-height: 1.7; padding: .75rem .5rem; }
.image-zoom { display: block; width: 100%; padding: 0; border: 0; background: transparent; cursor: zoom-in; }
.atlas, .section-heading, .city-grid, .findings, .map-shell { width: calc(100% - 2.5rem); max-width: 1160px; margin-left: auto; margin-right: auto; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 1rem; margin-bottom: 1.2rem; }
.atlas .section-heading, .atlas .map-shell { width: 100%; }
.section-heading h2 { font-size: 1.45rem; margin: 0 0 .4rem; }
.section-heading p, .section-heading > span, .atlas-note { font-size: .85rem; color: var(--secondary); margin: 0; }
.atlas-note { margin-top: .8rem; }
.directory-heading { margin-top: 3.5rem; }
.map-shell { border: 1px solid #c7d6e0; border-radius: 12px; overflow: hidden; background: white; }
.map-toolbar { display: flex; gap: .5rem; flex-wrap: wrap; padding: .85rem 1rem; align-items: center; border-bottom: 1px solid var(--rule); }
.map-toolbar strong { font-size: .9rem; margin-right: auto; }
.map-toolbar button { border: 1px solid var(--rule); background: #f3f7fa; color: var(--ink); border-radius: 5px; padding: .45rem .7rem; font-size: .8rem; }
.map-toolbar button:hover { background: #e0eef0; }
.map-layout { display: grid; grid-template-columns: minmax(0, 1fr) 220px; }
#map { height: 510px; border: 0; background: #e0e9ed; z-index: 0; }
.map-sites { padding: .5rem; max-height: 510px; overflow-y: auto; border-left: 1px solid var(--rule); }
.map-site { padding: .35rem .3rem .65rem; border-bottom: 1px solid var(--rule); }
.map-site:last-child { border-bottom: 0; }
.site-select { display: block; width: 100%; text-align: left; border: 0; color: var(--ink); background: transparent; border-radius: 5px; padding: .5rem; font-size: .9rem; }
.site-select::before { content: attr(data-index); display: inline-grid; place-items: center; width: 22px; height: 22px; border-radius: 50%; background: var(--point); color: white; font-size: 11px; font-weight: 700; margin-right: .6rem; }
.site-select:hover, .site-select[aria-pressed=true] { background: #e4f0f1; }
.map-site a { display: inline-block; font-size: .75rem; margin: .15rem 0 0 1.6rem; }
.map-status { margin: 0; padding: .7rem 1rem; font-size: .75rem; color: var(--secondary); border-top: 1px solid var(--rule); }
.probe-pin span { display: grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; background: var(--point); color: white; border: 2px solid white; font-size: 12px; font-weight: 700; box-shadow: 0 2px 8px #172e4350; }
.leaflet-popup-content-wrapper, .leaflet-popup-tip { background: white; }
.leaflet-popup-content strong { font-family: var(--sans); }
.leaflet-popup-content p { margin: .5rem 0; }
.leaflet-popup-content a { color: #167b83; }
.leaflet-control-layers { border-radius: 6px; font-size: 12px; }
.map-caption { padding-top: 1rem; padding-bottom: 1.5rem; font-family: var(--sans); }
.finding, .city-card { border: 1px solid var(--rule); border-radius: 8px; padding: 1.4rem; }
.finding h2, .city-card h2, .site-rail h2, .method h2, .method h3 { font-family: var(--sans); }
.city-card { min-height: 255px; }
.city-card:hover { border-color: #167b83; background: #f8fcfd; color: var(--ink); }
.city-card .id, .finding .id { font-family: var(--sans); font-size: .75rem; }
.city-card h2 { font-size: 1.65rem; }
.city-card p { line-height: 1.85; }
.badge { width: fit-content; border-radius: 4px; font-family: var(--sans); letter-spacing: 0; font-size: 11px; background: white; }
.badge.high { color: #14666c; }
.badge.mid { color: #885019; }
.city-card .go { font-family: var(--sans); font-size: .8rem; letter-spacing: 0; }
.method { max-width: 840px; padding-top: 3.5rem; padding-bottom: 3.5rem; }
.city-nav { padding: 1.25rem; margin-bottom: 2rem; font-family: var(--sans); }
.city-nav a { display: inline-block; padding: .3rem 0; }
footer { margin-top: 3rem; font-family: var(--sans); line-height: 1.9; }
.lightbox button { background: white; color: #172e43; border-radius: 5px; z-index: 1; }
.lightbox img { box-shadow: 0 0 0 6px white; object-fit: contain; }
@media (max-width: 1000px) {
  .city-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .findings { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .mast:has(.hero) { column-gap: 1.5rem; }
}
@media (max-width: 700px) {
  .neatline { flex-wrap: wrap; gap: .2rem .8rem; }
  .mast { padding-top: 2rem; }
  .mast:has(.hero) { display: block; }
  .mast:has(.hero) .hero { margin-top: 1.5rem; }
  figure.hero img { max-height: 260px; }
  .section-heading { display: block; }
  .section-heading > span { display: block; margin-top: .6rem; }
  .map-layout { grid-template-columns: 1fr; }
  #map { height: 380px; }
  .map-sites { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); max-height: 190px; border-left: 0; border-top: 1px solid var(--rule); }
  .map-toolbar strong { width: 100%; }
  .atlas, .section-heading, .city-grid, .findings, .map-shell { width: calc(100% - 2rem); }
  .atlas .map-shell, .atlas .section-heading { width: 100%; }
  .map-caption { gap: .5rem 1rem; }
  .site { gap: 1rem; }
}
@media (max-width: 480px) {
  .city-grid, .findings { grid-template-columns: 1fr; }
  .city-card { min-height: auto; }
  .lightbox { padding: .5rem; }
}

.imagery-note { grid-column: 1 / -1; font-size: .8rem; color: var(--secondary); padding: .8rem 1rem; background: var(--surface); border-left: 3px solid var(--accent); margin: 1rem 0 0; }
.historical-plates summary { cursor: pointer; color: var(--accent); padding: .75rem 0; }
.historical-plates figure { margin-top: 1rem; }