/* ============================================================
   IntentScan — design foundations
   Near-monochrome, flat & matte, hairline structure, IBM Plex.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root {
  --font-sans: 'IBM Plex Sans', system-ui, -apple-system, 'PingFang SC', sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;
  --ink: #1B1B1A; --ink-2: #5C5B57; --ink-3: #8A8984; --ink-4: #B3B2AC;
  --paper: #F6F5F3; --surface: #FFFFFF; --surface-2: #EFEEEB; --surface-3: #E7E5E1;
  --line: #E4E2DD; --line-2: #D5D3CD;
  --pos: #5E7257; --neg: #97574B; --warn: #9A7B43; --brand: #45607A;
  --shadow-1: 0 1px 2px rgba(28,26,22,0.05);
  --r-sm: 6px; --r-md: 8px; --r-lg: 12px; --r-pill: 999px;
  --space-1: 4px; --space-2: 8px; --space-3: 12px; --space-4: 16px;
  --space-5: 22px; --space-6: 28px; --space-7: 34px;
  --num: var(--font-mono); --focus: 0 0 0 2px var(--paper), 0 0 0 4px var(--brand);
  /* Categorical chart slots. Validated with the data-viz palette validator against
     this site's own chart surfaces (light #FFFFFF / dark #1E1E1C): lightness band,
     chroma floor, adjacent CVD separation, normal-vision floor and contrast all pass.
     Fallback copies live in chart-palette.js — keep the two in lockstep. */
  --series-1: #437fb5; --series-2: #803434; --series-3: #4e9f73; --series-4: #534286;
  --series-5: #8a560c; --series-6: #1ea2ab; --series-7: #763966; --series-8: #848a39;
}

.dark {
  --ink:#ECEBE7; --ink-2:#A7A6A0; --ink-3:#7A7974; --ink-4:#54534F;
  --paper:#161614; --surface:#1E1E1C; --surface-2:#262624; --surface-3:#2F2F2C;
  --line:#2C2C29; --line-2:#3A3A36;
  --shadow-1:0 1px 2px rgba(0,0,0,0.4);
  --series-1: #5793ca; --series-2: #a15250; --series-3: #44a774; --series-4: #8a7bc1;
  --series-5: #a16c2b; --series-6: #21a3ad; --series-7: #955283; --series-8: #8e9444;
}

* { box-sizing: border-box; }
html, body { margin: 0; background: var(--paper); overflow-x: hidden; }
body { color: var(--ink); font-family: var(--font-sans); }
.app-root { min-height: 100vh; padding-bottom: 80px; max-width: 100vw; }
::selection { background: rgba(69,96,122,0.3); }

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  padding: 8px 14px; background: var(--brand); color: #fff; border-radius: var(--r-sm);
}
.skip-link:focus { left: 12px; top: 12px; outline: none; box-shadow: var(--focus); }

a:focus-visible, button:focus-visible, input:focus-visible, .win-pill:focus-visible,
.grp-pill:focus-visible, .hash-chip:focus-visible, .scan-navlink:focus-visible,
.status-pill__btn:focus-visible {
  outline: none; box-shadow: var(--focus); border-radius: 4px;
}

.wrap { max-width: 1360px; margin: 0 auto; padding: 0 var(--space-6); }

.nav-bar {
  position: sticky; top: 0; z-index: 50;
  background: rgba(246, 245, 243, 0.82); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.dark .nav-bar { background: rgba(22, 22, 20, 0.82); }
.nav-inner { height: 60px; display: flex; align-items: center; gap: var(--space-6); }
.nav-links { display: flex; align-items: center; gap: 22px; flex: 1; min-width: 0; }
.nav-links a { text-decoration: none; font-size: 14px; font-weight: 500; white-space: nowrap; }
.nav-logo-text { font-weight: 600; font-size: 16px; letter-spacing: -0.01em; color: var(--ink); }
.nav-clock {
  display: flex; align-items: center; gap: var(--space-2); color: var(--ink-3);
  font-family: var(--font-mono); font-size: 12px; flex: none;
}

.tbl-scroll {
  overflow-x: auto; -webkit-overflow-scrolling: touch; max-width: 100%;
  max-height: min(70vh, 640px); overflow-y: auto;
}
.tbl-min { min-width: 680px; }
.tbl-min--plat { min-width: 720px; }
.tbl-min--chain { min-width: 700px; }
.tbl-min--solv { min-width: 720px; }
.tbl-min--intent { min-width: 820px; }
.tbl-min--ticker { min-width: 640px; }
.tbl-min--pd-solv { min-width: 620px; }
.tbl-min--pair { min-width: 760px; }
.tbl-head {
  position: sticky; top: 0; z-index: 2; background: var(--surface);
  box-shadow: 0 1px 0 var(--line);
}
.num { font-family: var(--num); font-variant-numeric: tabular-nums; text-align: right; }
.trunc { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.hash-chip {
  display: inline-flex; align-items: center; gap: 5px; max-width: 100%;
  border: 1px solid transparent; background: transparent; padding: 2px 6px 2px 0;
  margin: 0; border-radius: var(--r-sm); cursor: pointer;
  font-family: var(--font-mono); font-size: 12.5px; color: var(--ink-2); text-align: left;
}
.hash-chip:hover { color: var(--ink); border-color: var(--line-2); background: var(--surface-2); padding-left: 6px; }
.hash-chip .hash-chip-ico { flex: none; opacity: 0.55; }

.kpi-tile {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--r-lg); padding: 16px 17px 14px;
}
.kpi-tile--primary { border-color: var(--line-2); background: linear-gradient(180deg, var(--surface) 0%, var(--surface-2) 100%); }
.kpi-val {
  font-family: var(--font-mono); font-size: 27px; font-weight: 500; color: var(--ink);
  letter-spacing: -0.01em; line-height: 1; font-variant-numeric: tabular-nums;
}
.kpi-tile--primary .kpi-val { font-size: 30px; letter-spacing: -0.02em; }
.kpi-cov, .cov { font-size: 11px; color: var(--ink-4); }

.detail-kv { display: flex; gap: var(--space-4); }
.detail-kv-label {
  width: 180px; flex: none; font-family: var(--font-mono); font-size: 11.5px;
  letter-spacing: 0.05em; text-transform: uppercase; color: var(--ink-3);
}
.detail-kv-value { font-size: 14px; color: var(--ink); min-width: 0; overflow-wrap: anywhere; }

.page-head-row { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; }
.chart-svg { display: block; width: 100%; max-width: 100%; height: auto; }

.t-h1 { font-family: var(--font-sans); font-weight: 600; font-size: 30px; line-height: 1.15; letter-spacing: -0.018em; color: var(--ink); margin: 0; }
.t-h3 { font-family: var(--font-sans); font-weight: 500; font-size: 17px; line-height: 1.35; letter-spacing: -0.006em; color: var(--ink); }
.t-body { font-family: var(--font-sans); font-weight: 400; font-size: 16px; line-height: 1.6; color: var(--ink-2); text-wrap: pretty; }
.t-small { font-family: var(--font-sans); font-weight: 400; font-size: 14px; line-height: 1.5; color: var(--ink-2); }
.t-caption { font-family: var(--font-sans); font-weight: 400; font-size: 13px; line-height: 1.45; color: var(--ink-3); }
.t-label { font-family: var(--font-mono); font-weight: 500; font-size: 11.5px; line-height: 1.2; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-3); }

.scan-row { transition: background .12s; }
.scan-row:hover, .scan-row:focus-within { background: var(--surface-2); }
.scan-navlink { transition: color .12s; }
.scan-navlink:hover { color: var(--ink) !important; }
.content-enter { opacity: 0; transform: translateY(4px); transition: opacity .14s ease, transform .14s ease; }
.content-enter.is-visible { opacity: 1; transform: translateY(0); }

.status-pill {
  position: fixed; right: 18px; bottom: 18px; z-index: 60;
  font-size: 12.5px; font-family: var(--font-mono);
}
.status-pill__btn {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 6px 11px; border-radius: var(--r-pill); cursor: pointer;
  border: 1px solid var(--line); background: var(--surface); color: var(--ink-2);
  box-shadow: var(--shadow-1); font: inherit;
}
.status-pill__btn:hover { color: var(--ink); border-color: var(--line-2); }
.status-pill__dot { width: 6px; height: 6px; border-radius: 50%; flex: none; background: var(--ink-3); }
.status-pill--loading .status-pill__dot { background: var(--ink-3); }
.status-pill--live .status-pill__dot { background: var(--pos); box-shadow: 0 0 0 3px rgba(94,114,87,0.18); }
.status-pill--demo .status-pill__dot { background: var(--warn); }
.status-pill--error .status-pill__dot { background: var(--neg); }
.status-pill--loading .status-pill__btn { color: var(--ink-3); }
.status-pill--live .status-pill__btn { color: var(--pos); }
.status-pill--demo .status-pill__btn { color: var(--warn); }
.status-pill--error .status-pill__btn { color: var(--neg); }
.status-pill__pop {
  position: absolute; right: 0; bottom: calc(100% + 8px); width: min(280px, calc(100vw - 36px));
  padding: 12px 14px; border-radius: var(--r-md); border: 1px solid var(--line);
  background: var(--surface); box-shadow: var(--shadow-1); color: var(--ink-2);
}
.status-pill__row {
  display: flex; justify-content: space-between; gap: 12px; align-items: baseline;
  margin-bottom: 8px; font-size: 12px; line-height: 1.4;
}
.status-pill__row span:first-child { color: var(--ink-3); flex: none; }
.status-pill__row .num { text-align: right; color: var(--ink-2); word-break: break-all; }
.status-pill__about {
  display: inline-block; margin-top: 4px; font-size: 12.5px; font-weight: 500;
  color: var(--brand); text-decoration: none;
}
.status-pill__about:hover { text-decoration: underline; }

.state-box {
  padding: 48px 20px; text-align: center; border-radius: var(--r-lg); margin: 22px 0;
}
.state-box--empty { border: 1px dashed var(--line-2); color: var(--ink-3); font-size: 14px; }
.state-box--error { border: 1px solid var(--neg); background: rgba(151,87,75,0.04); color: var(--neg); font-size: 14px; }

.seg {
  display: flex; background: var(--surface-2); border: 1px solid var(--line);
  border-radius: var(--r-md); padding: 3px; gap: 2px;
}
.seg__btn {
  border: 0; padding: 6px 13px; border-radius: 5px; font-family: var(--font-mono);
  font-size: 12.5px; font-weight: 500; cursor: pointer; background: transparent; color: var(--ink-3);
}
.seg__btn.is-on { background: var(--surface); color: var(--ink); box-shadow: var(--shadow-1); }
.btn-copy {
  border: 1px solid var(--line-2); background: var(--surface); border-radius: var(--r-pill);
  padding: 5px 9px; display: inline-flex; align-items: center; gap: 5px;
  font-size: 12px; color: var(--ink-2); cursor: pointer;
}
.btn-copy:hover { color: var(--ink); border-color: var(--line); }

.route-skeleton { padding-top: var(--space-7); }
.sk-line, .sk-card, .sk-chart, .sk-row {
  position: relative; overflow: hidden; background: var(--surface-2);
  border: 1px solid var(--line); border-radius: var(--r-md);
}
.sk-line { height: 12px; margin-bottom: 12px; }
.sk-line.title { height: 32px; margin-bottom: 22px; }
.sk-line.big { height: 28px; }
.w20 { width: 20%; max-width: 180px; }
.w40 { width: 40%; }
.w45 { width: 45%; max-width: 420px; }
.w55 { width: 55%; }
.w70 { width: 70%; }
.sk-kpis { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; margin: 22px 0 26px; }
.sk-card { height: 124px; padding: 16px 17px; }
.sk-chart { height: 260px; margin-bottom: 26px; }
.sk-table { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; }
.sk-row { height: 47px; border-width: 0 0 1px; border-radius: 0; }
.sk-line::after, .sk-card::after, .sk-chart::after, .sk-row::after {
  content: ""; position: absolute; inset: 0; transform: translateX(-100%);
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.55), transparent);
  animation: skeleton-shimmer 1.15s ease-in-out infinite;
}
@keyframes skeleton-shimmer { 100% { transform: translateX(100%); } }

.scan-ico-wrap {
  display: inline-flex; align-items: center; justify-content: center;
  flex: none; border-radius: 6px; overflow: hidden; position: relative;
  background: var(--surface-2);
}
.scan-ico {
  display: block; width: 100%; height: 100%; object-fit: contain; border-radius: 6px;
}
.scan-ico-fb {
  display: inline-flex; align-items: center; justify-content: center;
  flex: none; border-radius: 6px; font-family: var(--font-mono); font-weight: 500;
  line-height: 1; border: 1px solid var(--line-2);
}
.scan-ico-wrap .scan-ico-fb[hidden] { display: none !important; }
.scan-ico-wrap .scan-ico-fb:not([hidden]) {
  position: absolute; inset: 0; width: 100% !important; height: 100% !important;
}
.dark .scan-ico-wrap, .dark .scan-ico-fb {
  box-shadow: 0 0 0 1px rgba(255,255,255,0.12);
}
.scan-ico-stack .scan-ico-wrap + .scan-ico-wrap,
.scan-ico-stack .scan-ico-fb + .scan-ico-wrap,
.scan-ico-stack .scan-ico-wrap + .scan-ico-fb { margin-left: -5px; }
.scan-ico-overlap { position: relative; z-index: 1; }
.scan-chart__swatch .scan-ico-wrap,
.scan-chart__swatch .scan-ico-fb { flex: none; }

@media (max-width: 900px) {
  .kpi-row, .kpi-row--detail { grid-template-columns: repeat(2, 1fr) !important; }
  .sk-kpis { grid-template-columns: repeat(2, 1fr) !important; }
  .split { grid-template-columns: 1fr !important; }
  .hide-sm { display: none !important; }
}
@media (max-width: 640px) {
  .wrap { padding: 0 14px; }
  .nav-inner { gap: 12px; height: 52px; }
  .nav-links { gap: 0; overflow-x: auto; -webkit-overflow-scrolling: touch; scrollbar-width: none; }
  .nav-links::-webkit-scrollbar { display: none; }
  .nav-links a { padding: 10px 8px; min-height: 40px; display: flex; align-items: center; font-size: 13px; }
  .nav-logo-text { font-size: 15px; }
  .hide-xs { display: none !important; }
  .kpi-val { font-size: 22px; }
  .kpi-tile--primary .kpi-val { font-size: 24px; }
  .kpi-tile { padding: 12px 13px 11px; }
  .kpi-row, .kpi-row--detail { gap: 10px !important; }
  .t-h1 { font-size: 24px; }
  .page-head-row { flex-direction: column; align-items: flex-start; }
  .detail-kv { flex-direction: column; gap: 4px; }
  .detail-kv-label { width: auto; padding-top: 0; }
  .intent-detail-head { flex-wrap: wrap; gap: 12px; }
  .intent-detail-actions { width: 100%; }
  .trade-flow { flex-direction: column; gap: 12px; }
  .trade-flow svg { transform: rotate(90deg); }
  .tbl-scroll { max-height: min(65vh, 520px); }
}
@media (max-width: 400px) {
  .wrap { padding: 0 12px; }
  .kpi-row, .kpi-row--detail, .sk-kpis { grid-template-columns: 1fr !important; }
  .t-h1 { font-size: 22px; }
  .seg__btn { padding: 6px 10px; font-size: 12px; }
}

/* ============================================================
   IntentScan — publication-grade chart chrome
   Axes, legend, tooltip, empty state, toggle clusters.
   Uses design tokens from styles.css; works in light + dark.
   ============================================================ */

.scan-chart { position: relative; }
.scan-chart__frame {
  display: grid;
  grid-template-columns: var(--scan-gutter, 48px) minmax(0, 1fr);
  grid-template-rows: 240px auto;
  gap: 0 0;
  column-gap: 0;
  min-height: 240px;
  align-items: stretch;
}
.scan-chart__y {
  position: relative;
  grid-column: 1;
  grid-row: 1;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-3);
  padding-right: 8px;
  box-sizing: border-box;
  min-width: 0;
}
.scan-chart__y span {
  position: absolute;
  right: 8px;
  transform: translateY(-50%);
  white-space: nowrap;
}
.scan-chart__plot {
  position: relative;
  grid-column: 2;
  grid-row: 1;
  height: 240px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--surface);
  overflow: hidden;
  min-width: 0;
}
.scan-chart__canvas,
.scan-chart__svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}
.scan-chart__svg { pointer-events: none; }
.scan-chart__plot { touch-action: pan-y; }
.scan-chart__plot:focus-visible { outline: none; box-shadow: var(--focus); }
.scan-chart__x {
  grid-column: 2;
  grid-row: 2;
  display: flex;
  justify-content: space-between;
  margin: 8px 0 0;
  padding: 0 2px;
  box-sizing: border-box;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--ink-3);
}
.scan-chart__legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}
.scan-chart__swatch {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  border: 0;
  background: transparent;
  padding: 7px 8px;
  margin: -4px 0;
  min-height: 34px;
  border-radius: var(--r-sm);
  cursor: pointer;
  color: var(--ink-2);
  font: inherit;
  text-align: left;
}
.scan-chart__swatch:hover { background: var(--surface-2); }
.scan-chart__swatch.is-off { opacity: 0.38; }
.scan-chart__swatch.is-off .scan-chart__dot { outline: 1px dashed var(--ink-4); background: transparent !important; }
.scan-chart__dot { width: 10px; height: 10px; border-radius: 3px; flex: none; }
.scan-chart__key { width: 12px; height: 3px; border-radius: 2px; flex: none; }
.scan-chart__swatch.is-off .scan-chart__key { opacity: 0.35; }
.scan-chart__name { font-size: 13px; }
.scan-chart__total {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--ink-2);
  font-variant-numeric: tabular-nums;
}
.scan-chart__share {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-3);
  font-variant-numeric: tabular-nums;
}
.scan-chart__tooltip {
  position: absolute;
  top: 10px;
  transform: translateX(-50%);
  min-width: 160px;
  max-width: 240px;
  padding: 10px 12px;
  background: var(--surface);
  border: 1px solid var(--line-2);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-1);
  pointer-events: none;
  z-index: 3;
  color: var(--ink);
}
.scan-chart__tip-time {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--ink-3);
  margin-bottom: 8px;
}
.scan-chart__tip-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  font-size: 12.5px;
  margin-top: 4px;
  color: var(--ink-2);
}
.scan-chart__tip-row i {
  display: inline-block;
  width: 12px;
  height: 2px;
  border-radius: 1px;
  margin-right: 7px;
  vertical-align: middle;
}
.scan-chart__tip-row span { min-width: 0; }
.scan-chart__tip-row b {
  font-family: var(--font-mono);
  font-weight: 500;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.scan-chart__tooltip[data-side="right"] { transform: translateX(-100%); }
.scan-chart__tooltip[data-side="left"] { transform: none; }
.scan-chart__tip-total {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--line);
}
.scan-chart__empty {
  height: 240px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px dashed var(--line-2);
  border-radius: var(--r-md);
  color: var(--ink-3);
  font-size: 14px;
  background: var(--surface-2);
  text-align: center;
  padding: 24px;
}
.grp-toggle,
.metric-toggle {
  display: flex;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 3px;
  gap: 2px;
}
.grp-pill,
.metric-pill {
  padding: 5px 12px;
  border-radius: 5px;
  font-size: 12.5px;
  font-weight: 500;
  cursor: pointer;
  background: transparent;
  color: var(--ink-3);
}
.grp-pill.is-on,
.metric-pill.is-on {
  background: var(--surface);
  color: var(--ink);
  box-shadow: var(--shadow-1);
}
.scan-chart-toggles {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}
/* Table-view twin: every value the tooltip shows stays reachable without hover
   and without colour, for keyboard and screen-reader readers alike. */
.scan-chart__table {
  margin-top: 12px;
  border-top: 1px solid var(--line);
  padding-top: 10px;
}
.scan-chart__table > summary {
  cursor: pointer;
  font-size: 12.5px;
  color: var(--ink-3);
  list-style: none;
  padding: 4px 2px;
  border-radius: var(--r-sm);
}
.scan-chart__table > summary::-webkit-details-marker { display: none; }
.scan-chart__table > summary::before { content: "▸ "; color: var(--ink-4); }
.scan-chart__table[open] > summary::before { content: "▾ "; }
.scan-chart__table-scroll {
  max-height: 260px;
  overflow: auto;
  margin-top: 8px;
  -webkit-overflow-scrolling: touch;
}
.scan-chart__table table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
}
.scan-chart__table th,
.scan-chart__table td {
  padding: 5px 10px 5px 0;
  text-align: right;
  white-space: nowrap;
  border-bottom: 1px solid var(--line);
  color: var(--ink-2);
}
.scan-chart__table th {
  position: sticky;
  top: 0;
  background: var(--surface);
  color: var(--ink-3);
  font-weight: 500;
}
.scan-chart__table th:first-child,
.scan-chart__table td:first-child { text-align: left; }

/* Announced to screen readers when the crosshair moves; never shown visually. */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.scan-chart__hint {
  margin-top: 8px;
  font-size: 11.5px;
  color: var(--ink-4);
  font-family: var(--font-mono);
}

@media (max-width: 720px) {
  .scan-chart__frame {
    grid-template-columns: var(--scan-gutter, 40px) minmax(0, 1fr);
    grid-template-rows: 200px auto;
  }
  .scan-chart__plot { height: 200px; }
  .scan-chart-toggles { justify-content: flex-start; }
  .scan-chart__legend { gap: 2px 10px; }
  .scan-chart__tooltip { min-width: 140px; max-width: min(220px, 70vw); }
  .scan-chart__x span:nth-child(even) { display: none; }
}

/* ============================================================
   IntentScan — solver concentration curve chrome
   Log-scale rank axis, focusable markers. Tokens from styles.css.
   ============================================================ */
.conc-svg { width: 100%; height: 180px; display: block; }
.conc-mark { cursor: default; }
.conc-mark:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 3px;
  border-radius: 4px;
}
.conc-mark:hover circle:first-child,
.conc-mark:focus-visible circle:first-child { r: 6; }
.conc-axis {
  position: relative;
  height: 16px;
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--ink-3);
}
.conc-axis span { position: absolute; transform: translateX(-50%); }