:root {
  --paper: #f8f3e6;
  --ink: #1b2635;
  --accent: #0d8a84;
  --accent-soft: #bce6e3;
  --warm: #e36a3f;
  --edge: #d8d2c1;
  --panel: #fffdf7;
  --page-bg:
    radial-gradient(circle at 12% 8%, rgba(214, 244, 241, 0.45) 0%, rgba(214, 244, 241, 0) 45%),
    radial-gradient(circle at 82% 14%, rgba(255, 203, 170, 0.38) 0%, rgba(255, 203, 170, 0) 40%),
    linear-gradient(170deg, #f9f3e6 0%, #ece0cb 100%);
  --status-bg: rgba(255, 253, 247, 0.95);
  --status-color: #213042;
  --status-border: rgba(27, 38, 53, 0.26);
  --toggle-bg: rgba(255, 253, 247, 0.95);
  --toggle-border: rgba(18, 31, 44, 0.35);
  --sidebar-bg: linear-gradient(180deg, rgba(255, 253, 247, 0.98), rgba(248, 241, 227, 0.98));
  --sidebar-border: #d8d2c1;
  --sidebar-shadow: 16px 0 30px rgba(19, 26, 36, 0.18);
  --city-meta-bg: rgba(255, 255, 255, 0.5);
  --city-meta-border: rgba(33, 45, 64, 0.14);
  --subtle-text: #37495e;
  --meta-label: #51657d;
  --control-bg: linear-gradient(180deg, #fdf9ec, #f8f4e8);
  --control-border: #d8d2c1;
  --button-bg: #c7ece8;
  --button-fg: #113937;
  --button-border: #286f6a;
  --close-bg: #f4eede;
  --close-fg: #2b394a;
  --close-border: #b6ad98;
  --section-title-color: #2f4156;
  --card-bg: #fffcf3;
  --card-border: #dfd7c7;
  --plot-bg: #fffef8;
  --plot-border: #ddd4c2;
  --data-link: #0b7a78;
  --data-separator: rgba(49, 68, 89, 0.3);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  height: 100%;
}

body {
  background: var(--page-bg);
  color: var(--ink);
  font-family: "IBM Plex Mono", monospace;
}

body.theme-light {
  --ink: #1b2635;
}

body.theme-dark {
  --ink: #d8e9fb;
  --page-bg:
    radial-gradient(circle at 16% 8%, rgba(53, 128, 193, 0.26) 0%, rgba(53, 128, 193, 0) 50%),
    radial-gradient(circle at 84% 14%, rgba(124, 97, 232, 0.24) 0%, rgba(124, 97, 232, 0) 48%),
    linear-gradient(168deg, #0a1622 0%, #0e1d2d 100%);
  --status-bg: rgba(13, 28, 42, 0.92);
  --status-color: #d8e9ff;
  --status-border: rgba(157, 191, 226, 0.36);
  --toggle-bg: rgba(13, 28, 42, 0.92);
  --toggle-border: rgba(157, 191, 226, 0.36);
  --sidebar-bg: linear-gradient(180deg, rgba(12, 25, 38, 0.98), rgba(9, 19, 30, 0.98));
  --sidebar-border: rgba(149, 184, 219, 0.3);
  --sidebar-shadow: 16px 0 30px rgba(2, 7, 12, 0.52);
  --city-meta-bg: rgba(24, 47, 69, 0.52);
  --city-meta-border: rgba(169, 200, 235, 0.25);
  --subtle-text: #c3d9f0;
  --meta-label: #8fb8de;
  --control-bg: linear-gradient(180deg, #193249, #13293d);
  --control-border: rgba(151, 185, 219, 0.26);
  --button-bg: #294b6c;
  --button-fg: #e5f3ff;
  --button-border: #7fb6ec;
  --close-bg: #1c3851;
  --close-fg: #e3f2ff;
  --close-border: #82b5e3;
  --section-title-color: #d8e9fb;
  --card-bg: #172d41;
  --card-border: rgba(151, 185, 219, 0.28);
  --plot-bg: #152c3f;
  --plot-border: rgba(151, 185, 219, 0.32);
  --data-link: #86d8ff;
  --data-separator: rgba(157, 191, 226, 0.32);
}

#app {
  position: relative;
  height: 100vh;
  overflow: hidden;
}

.map-shell {
  position: relative;
  height: 100%;
}

#map {
  height: 100%;
  width: 100%;
}

.top-ribbon {
  position: absolute;
  top: 14px;
  right: 14px;
  left: 14px;
  z-index: 2;
  pointer-events: none;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.title-block {
  max-width: 520px;
  padding: 10px 14px;
  border: 1px solid rgba(11, 17, 24, 0.35);
  border-radius: 10px;
  background: linear-gradient(115deg, rgba(15, 107, 112, 0.9), rgba(20, 33, 56, 0.9));
  color: #fbfbfa;
  box-shadow: 0 12px 25px rgba(0, 0, 0, 0.18);
  pointer-events: auto;
}

.title-block h2 {
  margin: 0;
  font-size: 1.14rem;
}

.title-subtext {
  margin: 5px 0 0;
  font-size: 0.78rem;
  line-height: 1.3;
  opacity: 0.95;
}

.title-meta {
  margin: 5px 0 0;
  font-size: 0.71rem;
  line-height: 1.25;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.title-meta a {
  color: #9de5ff;
}

.title-meta .repo-link,
.title-meta .meta-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 2px 8px;
  border: 1px solid rgba(157, 229, 255, 0.44);
  border-radius: 999px;
  text-decoration: none;
  color: #9de5ff;
}

.title-meta .repo-link:hover,
.title-meta .meta-link:hover {
  background: rgba(157, 229, 255, 0.14);
}

.title-meta .repo-link svg,
.title-meta .meta-link svg {
  width: 12px;
  height: 12px;
  fill: currentColor;
}

.eyebrow {
  margin: 0 0 2px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.68rem;
  font-family: "IBM Plex Mono", monospace;
}

.status {
  margin: 0;
  padding: 8px 12px;
  background: var(--status-bg);
  border: 1px solid var(--status-border);
  border-radius: 12px;
  font-size: 0.78rem;
  font-family: "IBM Plex Mono", monospace;
  color: var(--status-color);
}

.top-right-controls {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 8px;
}

.map-toggle {
  border: 1px solid var(--toggle-border);
  border-radius: 10px;
  padding: 8px 10px;
  font-size: 1rem;
  line-height: 1;
  background: var(--toggle-bg);
  font-family: "IBM Plex Mono", monospace;
  cursor: pointer;
  box-shadow: 0 5px 14px rgba(20, 34, 48, 0.2);
}

.sidebar {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  z-index: 5;
  width: min(460px, 94vw);
  transform: translateX(-100%);
  transition: transform 220ms ease;
  overflow-y: auto;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--sidebar-border);
  box-shadow: var(--sidebar-shadow);
  padding: 12px 14px 26px;
}

.sidebar.open {
  transform: translateX(0);
}

.close-button {
  font: inherit;
  border: 1px solid var(--close-border);
  border-radius: 8px;
  padding: 6px 10px;
  color: var(--close-fg);
  background: var(--close-bg);
  cursor: pointer;
}

.sidebar-header h1 {
  margin: 10px 0 7px;
  font-size: 1.45rem;
  line-height: 1.15;
}

.city-meta {
  margin: 0 0 12px;
  padding: 8px 10px;
  border: 1px solid var(--city-meta-border);
  border-radius: 10px;
  background: var(--city-meta-bg);
}

.city-meta p {
  margin: 0;
  color: var(--subtle-text);
  font-size: 0.88rem;
  line-height: 1.45;
}

.city-meta span {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.78rem;
  color: var(--meta-label);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-right: 4px;
}

.controls {
  margin-bottom: 12px;
  padding: 10px;
  border: 1px solid var(--control-border);
  border-radius: 10px;
  background: var(--control-bg);
}

.control-label {
  display: block;
  margin-bottom: 8px;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--meta-label);
  font-family: "IBM Plex Mono", monospace;
}

.control-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

#yearSlider {
  flex: 1;
}

.year-value {
  min-width: 54px;
  text-align: center;
  font-family: "IBM Plex Mono", monospace;
  color: var(--subtle-text);
}

.play-button {
  font: inherit;
  border: 1px solid var(--button-border);
  border-radius: 8px;
  padding: 5px 9px;
  color: var(--button-fg);
  background: var(--button-bg);
  cursor: pointer;
}

.icon-button {
  padding: 3px 6px;
  font-size: 0.68rem;
  line-height: 1.1;
  min-width: 48px;
  text-align: center;
}

.play-button:disabled,
#yearSlider:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.section-title {
  margin: 10px 0;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--section-title-color);
  font-family: "IBM Plex Mono", monospace;
}

.section-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.section-title-row .section-title {
  margin: 10px 0;
}

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

.metric-card {
  padding: 8px;
  border: 1px solid var(--card-border);
  border-radius: 8px;
  background: var(--card-bg);
}

.metric-label {
  margin: 0;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--meta-label);
  font-family: "IBM Plex Mono", monospace;
}

.metric-value {
  margin: 4px 0 0;
  font-size: 0.92rem;
  color: var(--ink);
  font-family: "IBM Plex Mono", monospace;
}

.plot {
  min-height: 274px;
  border: 1px solid var(--plot-border);
  border-radius: 10px;
  background: var(--plot-bg);
}

#pyramidPlot {
  min-height: 500px;
}

#trendPlot {
  min-height: 320px;
}

.data-source {
  margin-top: 12px;
  font-size: 0.82rem;
  color: var(--subtle-text);
  line-height: 1.4;
  border-top: 1px dashed var(--data-separator);
  padding-top: 10px;
}

.data-source a {
  color: var(--data-link);
}

.maplibregl-ctrl-attrib {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.65rem;
}

@media (max-width: 980px) {
  .top-ribbon {
    right: 8px;
    left: 8px;
    top: 8px;
  }

  .title-block {
    padding: 9px 10px;
  }

  .status {
    display: none;
  }
}