:root {
  color-scheme: light;
  --surface-1: #fcfcfb;
  --page: #f9f9f7;
  --text-primary: #0b0b0b;
  --text-secondary: #52514e;
  --muted: #898781;
  --hairline: #e1e0d9;
  --border: rgba(11, 11, 11, 0.10);
}
@media (prefers-color-scheme: dark) {
  :root:where(:not([data-theme="light"])) {
    color-scheme: dark;
    --surface-1: #1a1a19;
    --page: #0d0d0d;
    --text-primary: #ffffff;
    --text-secondary: #c3c2b7;
    --muted: #a8a69e;
    --hairline: #2c2c2a;
    --border: rgba(255, 255, 255, 0.10);
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --surface-1: #1a1a19;
  --page: #0d0d0d;
  --text-primary: #ffffff;
  --text-secondary: #c3c2b7;
  --muted: #a8a69e;
  --hairline: #2c2c2a;
  --border: rgba(255, 255, 255, 0.10);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--page);
  color: var(--text-primary);
}

header {
  padding: 1.4rem 1.25rem;
  border-bottom: 1px solid var(--hairline);
  background: var(--surface-1);
  text-align: center;
}
header h1 { margin: 0 0 0.7rem; font-size: 1.65rem; }
header p { margin: 0.2rem 0 0; font-size: 0.85rem; color: var(--text-secondary); }
header .author-name { margin-top: 0.6rem; }
/* Fixed (not theme-linked) dark chip so the white text stays legible
   whether the page is in light or dark mode -- var(--surface-1) alone
   flips to near-white in light mode, which would make literal white text
   disappear. */
header .author-name span {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  background: #2b2b29;
  color: #ffffff;
  font-size: 1rem;
  font-weight: 600;
}
header .author-link { margin-top: 0.5rem; font-size: 0.8rem; }
header .author-link a { color: var(--text-secondary); }

.layout {
  display: flex;
  align-items: flex-start;
}

.controls {
  /* Wider on large screens (up to 420px), never below 300px on desktop.
     Height grows with its own content -- no internal scrolling -- while the
     map keeps a fixed viewport-relative height (set on .map-wrap) so a long
     sidebar doesn't shrink the map. */
  width: clamp(300px, 26vw, 420px);
  flex-shrink: 0;
  padding: 1rem;
  border-right: 1px solid var(--hairline);
  background: var(--surface-1);
}

.control-group { margin-bottom: 1.4rem; }
.control-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
}
.control-group select {
  width: 100%;
  padding: 0.35rem;
  border-radius: 6px;
  border: 1px solid var(--hairline);
  background: var(--surface-1);
  color: var(--text-primary);
  font-size: 0.85rem;
}
select:disabled, .corr-axis select:disabled, .download-dims select:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.variable-details {
  margin-top: 0.5rem;
  border: 1px solid var(--hairline);
  border-radius: 6px;
  padding: 0.4rem 0.6rem;
}
.variable-details summary {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
}
.variable-details[open] summary { margin-bottom: 0.3rem; }

.variable-description, .variable-availability, .variable-source, .variable-access {
  font-size: 0.76rem;
  color: var(--text-secondary);
  margin: 0.4rem 0 0;
  line-height: 1.4;
}
.variable-availability { color: var(--text-secondary); }
.variable-source { color: var(--muted); font-style: italic; }
.variable-access { color: var(--muted); font-size: 0.7rem; }

.view-buttons { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.view-buttons button {
  flex: 1 1 calc(50% - 0.4rem);
  padding: 0.4rem 0.5rem;
  font-size: 0.8rem;
  border: 1px solid var(--hairline);
  border-radius: 6px;
  background: var(--surface-1);
  color: var(--text-primary);
  cursor: pointer;
}
.view-buttons button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}
.view-buttons button.active {
  background: var(--text-primary);
  color: var(--surface-1);
  border-color: var(--text-primary);
}

#year-value { font-variant-numeric: tabular-nums; font-weight: 600; }
input[type="range"] { width: 100%; }
input[type="range"]:disabled { opacity: 0.45; cursor: not-allowed; }

.action-btn {
  width: 100%;
  padding: 0.5rem;
  font-size: 0.82rem;
  border: 1px solid var(--hairline);
  border-radius: 6px;
  background: var(--text-primary);
  color: var(--surface-1);
  cursor: pointer;
}

.map-wrap { position: relative; flex: 1; min-width: 0; height: 78vh; min-height: 420px; }
#map { height: 100%; width: 100%; background: var(--page); }

.map-reset-btn {
  width: auto;
  padding: 0 8px;
  font-size: 0.72rem;
  font-weight: 600;
  line-height: 26px;
  height: 26px;
  text-align: center;
  background: var(--surface-1);
  color: var(--text-primary);
  border: none;
  display: block;
  cursor: pointer;
}
.map-reset-btn:hover { background: var(--page); }

.map-status {
  display: none;
  position: absolute;
  z-index: 1000;
  top: 0.75rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.4rem 0.8rem;
  font-size: 0.82rem;
  color: var(--text-secondary);
}
.map-status.error { color: #e34948; border-color: #e34948; }

.legend {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.5rem 0.7rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
}
.legend-scale { display: flex; height: 10px; border-radius: 3px; overflow: hidden; margin-bottom: 0.3rem; }
.legend-scale span { flex: 1; }
.legend-labels {
  position: relative;
  height: 12px;
  font-size: 0.62rem;
  font-variant-numeric: tabular-nums;
}
.legend-labels span { position: absolute; top: 0; white-space: nowrap; }

.leaflet-tooltip.region-tooltip {
  background: var(--surface-1);
  color: var(--text-primary);
  border: 1px solid var(--border);
  font-family: inherit;
  font-size: 0.8rem;
  padding: 0.35rem 0.55rem;
}
.leaflet-tooltip.region-tooltip .val { font-weight: 600; font-variant-numeric: tabular-nums; }

.source-note { font-size: 0.72rem; color: var(--muted); margin-top: 1.5rem; line-height: 1.4; }

/* Below-map sections */
.below-map {
  max-width: 920px;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 3rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.panel {
  background: var(--surface-1);
  border: 1px solid var(--hairline);
  border-radius: 10px;
  padding: 1.1rem 1.3rem;
}
.panel h2 { margin: 0 0 0.8rem; font-size: 1rem; }
.panel h3 { margin: 0 0 0.4rem; font-size: 0.82rem; color: var(--text-secondary); }

.search-input {
  width: 100%;
  padding: 0.5rem 0.6rem;
  border-radius: 6px;
  border: 1px solid var(--hairline);
  background: var(--page);
  color: var(--text-primary);
  font-size: 0.9rem;
}
.search-results { list-style: none; margin: 0.4rem 0 0; padding: 0; }
.search-results li {
  padding: 0.4rem 0.5rem;
  cursor: pointer;
  border-radius: 6px;
  font-size: 0.85rem;
}
.search-results li:hover { background: var(--page); }

.rankings-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}
.ranking-list { list-style: decimal; margin: 0; padding-left: 1.2rem; font-size: 0.82rem; }
.ranking-list li {
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.15rem 0;
  border-bottom: 1px solid var(--hairline);
}
.ranking-list .val { font-variant-numeric: tabular-nums; color: var(--text-secondary); flex-shrink: 0; }

.corr-axes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 0.8rem;
}
.corr-axis {
  border: 1px solid var(--hairline);
  border-radius: 8px;
  padding: 0.7rem 0.8rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.corr-axis legend { font-size: 0.78rem; font-weight: 600; color: var(--text-secondary); padding: 0 0.3rem; }
.corr-axis label { font-size: 0.78rem; color: var(--text-secondary); display: flex; flex-direction: column; gap: 0.25rem; }
.corr-axis select {
  padding: 0.35rem;
  border-radius: 6px;
  border: 1px solid var(--hairline);
  background: var(--page);
  color: var(--text-primary);
  font-size: 0.82rem;
}
.corr-log { flex-direction: row !important; align-items: center; gap: 0.4rem !important; }

.corr-run-btn { max-width: 180px; margin-bottom: 0.8rem; }
.corr-coefficient { font-size: 0.85rem; font-weight: 600; margin: 0 0 0.6rem; }
.corr-svg { width: 100%; max-width: 480px; height: auto; }
.corr-note { font-size: 0.75rem; color: var(--muted); margin: 0 0 0.8rem; }

.download-variables {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.2rem;
  margin-bottom: 0.9rem;
}
.download-var-item {
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.download-dims, .download-years {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 0.9rem;
}
.download-years label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}
.download-dim {
  border: 1px solid var(--hairline);
  border-radius: 6px;
  padding: 0.35rem 0.6rem;
  background: var(--page);
  min-width: 150px;
}
.download-dim summary {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
}
.dim-options {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  margin-top: 0.4rem;
}
.dim-option {
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.download-years input {
  width: 90px;
  padding: 0.35rem;
  border-radius: 6px;
  border: 1px solid var(--hairline);
  background: var(--page);
  color: var(--text-primary);
}

.contact-note { font-size: 0.85rem; color: var(--text-secondary); }
.contact-note a { color: inherit; }

footer {
  text-align: center;
  padding: 1.2rem;
  font-size: 0.8rem;
  color: var(--muted);
  border-top: 1px solid var(--hairline);
}
footer a { color: inherit; }

@media (max-width: 720px) {
  /* align-items: flex-start (set for desktop's row layout, so the sidebar
     can grow taller than the map without stretching it) is a CROSS-axis
     property -- in this column layout the cross axis is horizontal, so the
     same value collapses both children to their shrink-to-fit width unless
     overridden back to stretch. */
  .layout { flex-direction: column; height: auto; align-items: stretch; }
  .controls { width: 100%; height: auto; border-right: none; border-bottom: 1px solid var(--hairline); }
  /* flex: none overrides the base rule's "flex: 1" (flex-basis: 0%), which
     would otherwise ignore this explicit height entirely and size the row
     purely by flex-grow -- collapsing to 0 height, since .layout's own
     height is "auto" here and has no extra space to distribute. */
  .map-wrap { height: 60vh; flex: none; }
  .rankings-columns { grid-template-columns: 1fr; }
  .corr-axes { grid-template-columns: 1fr; }
}