.d3-chart-wrapper {
  margin: 1.75em 0;
}

.d3-chart-title {
  font-family: var(--font-tab, sans-serif);
  font-size: 0.8em;
  font-weight: 700;
  color: var(--fg-2, #C9CBD0);
  text-align: center;
  margin: 0 0 0.6em;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.d3-chart-container {
  position: relative;
  background: var(--bg-raised, #26222B);
  border: 1px solid var(--border-1, #322D38);
  border-radius: 4px;
  overflow: hidden;
  width: 100%;
}

/* ── Loading overlay ────────────────────────────────────────────────────── */

.d3-chart-loading {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  background: var(--bg-raised, #26222B);
  z-index: 1;
  transition: opacity 180ms ease;
}

/* Scanline texture matching the site header/banner aesthetic */
.d3-chart-loading::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0, transparent 2px,
    rgba(229, 230, 232, 0.03) 2px, rgba(229, 230, 232, 0.03) 3px
  );
  pointer-events: none;
}

.d3-chart-loading--out {
  opacity: 0;
  pointer-events: none;
}

/* Equalizer bars — bell-curve heights, pumping upward from the baseline */
.d3-chart-loading-bars rect {
  fill: var(--fg-accent, #F7BB2B);
  transform-box: fill-box;
  transform-origin: center bottom;
  animation: d3-bar-pump 1.1s cubic-bezier(.2, .9, .1, 1) infinite;
}

.d3-chart-loading-bars rect:nth-child(2) { animation-delay: 0s; }
.d3-chart-loading-bars rect:nth-child(3) { animation-delay: 0.13s; }
.d3-chart-loading-bars rect:nth-child(4) { animation-delay: 0.26s; }
.d3-chart-loading-bars rect:nth-child(5) { animation-delay: 0.13s; }
.d3-chart-loading-bars rect:nth-child(6) { animation-delay: 0s; }

.d3-chart-loading-axis {
  stroke: var(--border-1, #322D38);
  stroke-width: 1;
  opacity: 0.6;
}

@keyframes d3-bar-pump {
  0%, 100% { transform: scaleY(0.12); opacity: 0.45; }
  50%       { transform: scaleY(1);   opacity: 1; }
}

/* Label — Saira Cond UI style with animated trailing dots */
.d3-chart-loading-label {
  font-family: var(--font-tab, 'Saira Cond', sans-serif);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-3, #8A8C93);
  position: relative;
  z-index: 1;
}

.d3-chart-loading-label::after {
  content: '...';
  display: inline-block;
  width: 0;
  overflow: hidden;
  vertical-align: bottom;
  animation: d3-dots 1.5s steps(4, end) infinite;
}

@keyframes d3-dots {
  0%   { width: 0; }
  100% { width: 1.8em; }
}

/* Respect reduced-motion preference */
@media (prefers-reduced-motion: reduce) {
  .d3-chart-loading-bars rect {
    animation: none;
    transform: scaleY(0.55);
    opacity: 0.7;
  }
  .d3-chart-loading-label::after {
    animation: none;
    width: 1.8em;
  }
  .d3-chart-loading {
    transition: none;
  }
}

.d3-chart-container svg {
  display: block;
  margin: 0 auto;
  max-width: 100%;
  font-family: var(--font-body, sans-serif);
}

.d3-chart-error {
  color: var(--fg-live, #FF2A4A);
  font-family: var(--font-mono, monospace);
  font-size: 0.8em;
  padding: 1em;
  margin: 0;
  text-align: center;
}

/* --- Choropleth interactive controls --- */

.d3-toggle-bar {
  display: flex;
  justify-content: center;
  gap: 0;
  padding: 0.5em 0 0.25em;
  background: var(--bg-raised, #26222B);
}

.d3-toggle-btn {
  font-family: var(--font-tab, sans-serif);
  font-size: 0.72em;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-3, #8A8C93);
  background: transparent;
  border: 1px solid var(--border-1, #322D38);
  padding: 0.45em 1.1em;
  cursor: pointer;
  transition: color 0.15s, background 0.15s, border-color 0.15s;
}

.d3-toggle-btn:first-child {
  border-radius: 14px 0 0 14px;
  border-right: none;
}

.d3-toggle-btn:last-child {
  border-radius: 0 14px 14px 0;
}

.d3-toggle-btn:hover {
  color: var(--fg-2, #C9CBD0);
}

.d3-toggle-btn.d3-toggle-active {
  color: #0d0d10;
  background: var(--fg-accent, #F7BB2B);
  border-color: var(--fg-accent, #F7BB2B);
}

.d3-fs-btn {
  position: absolute;
  top: 8px;
  right: 10px;
  width: 30px;
  height: 30px;
  font-size: 16px;
  color: var(--fg-2, #C9CBD0);
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border-1, #322D38);
  border-radius: 4px;
  cursor: pointer;
  z-index: 10;
  line-height: 1;
}

.d3-fs-btn:hover {
  color: var(--fg-1, #E5E6E8);
  background: rgba(0, 0, 0, 0.55);
}

/* --- Hover tooltip --- */

.d3-chart-hover-tip {
  position: absolute;
  pointer-events: none;
  z-index: 30;
  background: var(--bg-overlay, rgba(19, 19, 19, 0.95));
  border: 1px solid var(--border-1, #322D38);
  border-radius: 4px;
  padding: 0.45em 0.75em;
  color: var(--fg-1, #E5E6E8);
  font-family: var(--font-body, sans-serif);
  font-size: 0.76em;
  line-height: 1.35;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.45);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
  white-space: nowrap;
}

/* --- Click tooltip --- */

.d3-tooltip {
  position: absolute;
  z-index: 20;
  width: 280px;
  background: var(--bg-overlay, rgba(19, 19, 19, 0.95));
  border: 1px solid var(--border-1, #322D38);
  border-radius: 6px;
  padding: 0.7em 0.9em 0.8em;
  color: var(--fg-1, #E5E6E8);
  font-family: var(--font-body, sans-serif);
  font-size: 0.78em;
  line-height: 1.4;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}

.d3-tt-close {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 22px;
  height: 22px;
  background: transparent;
  color: var(--fg-3, #8A8C93);
  border: none;
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
}

.d3-tt-close:hover {
  color: var(--fg-1, #E5E6E8);
}

.d3-tt-name {
  font-weight: 600;
  font-size: 1.05em;
  margin-bottom: 0.1em;
  padding-right: 1.5em;
}

.d3-tt-id {
  color: var(--fg-3, #8A8C93);
  font-family: var(--font-mono, monospace);
  font-size: 0.8em;
  margin-bottom: 0.5em;
}

.d3-tt-row {
  display: flex;
  justify-content: space-between;
  gap: 0.5em;
  margin: 0.15em 0;
  color: var(--fg-2, #C9CBD0);
}

.d3-tt-row b {
  color: var(--fg-1, #E5E6E8);
  font-weight: 600;
}

.d3-tt-facs {
  margin-top: 0.6em;
  padding-top: 0.5em;
  border-top: 1px solid var(--border-1, #322D38);
}

.d3-tt-fac {
  display: grid;
  grid-template-columns: 12px 1fr auto;
  gap: 0.4em;
  align-items: baseline;
  margin: 0.25em 0;
}

.d3-tt-fac-name {
  color: var(--fg-1, #E5E6E8);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.d3-tt-fac-mw {
  color: var(--fg-2, #C9CBD0);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}

.d3-tt-fac-sub {
  grid-column: 2 / 4;
  color: var(--fg-3, #8A8C93);
  font-size: 0.85em;
  text-transform: lowercase;
}

.d3-tt-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid;
  background: transparent;
}

.d3-tt-empty {
  color: var(--fg-3, #8A8C93);
  font-style: italic;
  font-size: 0.9em;
}

/* --- Fullscreen modal --- */

.d3-fullscreen-modal {
  position: fixed;
  inset: 0;
  background: var(--bg-overlay, rgba(19, 19, 19, 0.92));
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
}

.d3-fs-inner {
  background: var(--bg-raised, #26222B);
  border: 1px solid var(--border-1, #322D38);
  border-radius: 6px;
  position: relative;
  overflow: hidden;
}

.d3-fs-inner svg {
  display: block;
  width: 100%;
}

.d3-fs-controls {
  position: absolute;
  bottom: 8px;
  right: 8px;
  display: flex;
  gap: 6px;
  z-index: 10;
}

.d3-fs-controls button {
  width: 40px;
  height: 40px;
  font-size: 18px;
  font-weight: 600;
  color: var(--fg-1, #E5E6E8);
  background: var(--bg-raised, #26222B);
  border: 1px solid var(--border-1, #322D38);
  border-radius: 4px;
  cursor: pointer;
  line-height: 1;
}

.d3-fs-controls button:hover {
  background: var(--fg-accent, #F7BB2B);
  color: #0d0d10;
  border-color: var(--fg-accent, #F7BB2B);
}

/* Marker stroke style (used by choropleth markers) */
.d3-marker-stroke {
  fill: none;
}