/* Notebook charts. Plain SVG + HTML, two inks (accent blue, neutral gray), no gradients or shadows. */
.nb-chart {
  --nb-ink: #1a1a1a;
  --nb-secondary: #5c5c5c;
  --nb-muted: #767672;
  --nb-grid: #e4e4e0;
  --nb-zero: #8a8a86;
  --nb-accent: #2348a8;
  --nb-common: #5c5c5c;
  --nb-paper: #fbfbf9;
  --nb-sans: var(--sans, "Inter", system-ui, -apple-system, "Segoe UI", sans-serif);
  --nb-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  max-width: 760px;
  margin: 22px auto 0;
  padding: 0;
  color: var(--nb-ink);
  font: 400 14px/1.45 var(--nb-sans);
  font-variant-numeric: tabular-nums;
}
@media (prefers-color-scheme: dark) {
  .nb-chart {
    --nb-ink: #e8e8e6;
    --nb-secondary: #a8a8a4;
    --nb-muted: #8c8c88;
    --nb-grid: #2e2e2c;
    --nb-zero: #8a8a86;
    --nb-accent: #8fa8e8;
    --nb-common: #b4b4b0;
    --nb-paper: #141414;
  }
}
.nb-chart svg { display: block; width: 100%; overflow: visible; }
.nb-legend { display: flex; flex-wrap: wrap; gap: 4px 18px; margin: 0 0 6px; color: var(--nb-secondary); font-size: 13px; }
.nb-legend span { display: inline-flex; align-items: center; gap: 6px; }
.nb-legend svg { width: 14px; height: 14px; }
.nb-panel { margin-top: 20px; }
.nb-panel:first-of-type { margin-top: 10px; }
.nb-ph { margin: 0 0 2px; font: 600 14px/1.35 var(--nb-sans); color: var(--nb-ink); }
.nb-pd { margin: 0 0 6px; color: var(--nb-secondary); font: 400 13px/1.45 var(--nb-sans); max-width: none; }
.nb-chart .nb-row { padding: 7px 0 0; border-top: 1px solid var(--nb-grid); }
.nb-chart .nb-row:first-of-type { border-top: 0; }
.nb-rl { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: 0 12px; }
.nb-rn { font-weight: 500; color: var(--nb-ink); }
.nb-rn small { font-weight: 400; color: var(--nb-secondary); font-size: 12.5px; margin-left: 4px; }
.nb-rv { font: 400 12.5px/1.45 var(--nb-mono); color: var(--nb-secondary); }
.nb-verdict { margin: 0; color: var(--nb-secondary); font-size: 12.5px; }
.nb-axis-title { margin: 2px 0 0; text-align: center; color: var(--nb-secondary); font-size: 12.5px; }
.nb-gridline { stroke: var(--nb-grid); stroke-width: 1; }
.nb-zero { stroke: var(--nb-zero); stroke-width: 1.4; }
.nb-ci { stroke-width: 2; stroke-linecap: butt; fill: none; }
.nb-ci.rare, .nb-dot.rare { stroke: var(--nb-accent); }
.nb-ci.common, .nb-dot.common { stroke: var(--nb-common); }
.nb-dot { stroke-width: 1.75; }
.nb-dot.rare { fill: var(--nb-accent); }
.nb-dot.common { fill: var(--nb-paper); }
.nb-tick { fill: var(--nb-secondary); font: 400 11px var(--nb-mono); }
.nb-tick.zero { fill: var(--nb-ink); font-weight: 500; }
.nb-svgtext { fill: var(--nb-secondary); font: 400 11.5px var(--nb-sans); }
.nb-pt { stroke-width: 1; }
.nb-pt.rare { fill: var(--nb-accent); fill-opacity: .55; stroke: none; }
.nb-pt.common { fill: none; stroke: var(--nb-common); stroke-opacity: .6; }
.nb-fit { fill: none; stroke-width: 2; }
.nb-fit.rare { stroke: var(--nb-accent); }
.nb-fit.common { stroke: var(--nb-common); }
.nb-diag { fill: none; stroke: var(--nb-zero); stroke-width: 1; stroke-dasharray: 3 3; }
.nb-leader { stroke: var(--nb-ink); stroke-width: 1; fill: none; }
.nb-callout { fill: var(--nb-ink); font: 500 11.5px var(--nb-sans); }
.nb-scatters { display: grid; grid-template-columns: 1fr; gap: 16px; }
@media (min-width: 700px) { .nb-scatters { grid-template-columns: 1fr 1fr; } }
.nb-chart details { margin-top: 12px; }
.nb-chart summary { cursor: pointer; color: var(--nb-secondary); font-size: 13px; }
.nb-chart table { width: 100%; margin-top: 8px; border-collapse: collapse; font-size: 12.5px; }
.nb-chart th, .nb-chart td { padding: 5px 6px 5px 0; border-top: 1px solid var(--nb-grid); text-align: left; vertical-align: top; font-weight: 400; }
.nb-chart thead th { color: var(--nb-secondary); border-top: 0; }
.nb-chart td { font-family: var(--nb-mono); font-size: 12px; }
.nb-chart td small { display: block; color: var(--nb-muted); font-size: 11px; }
.nb-chart .nb-scroll { overflow-x: auto; }
.nb-chart figcaption { margin-top: 12px; color: var(--nb-secondary); font: 400 13.5px/1.55 var(--nb-sans); max-width: none; }
.nb-chart figcaption strong { color: var(--nb-ink); font-weight: 600; }
.nb-chart .nb-note-error { color: var(--nb-secondary); }
@media (max-width: 480px) {
  .nb-chart figcaption { font-size: 14px; }
}

/* Inside the notebook, chart text uses the sans UI face at chart scale, not the serif body size. */
.notebook-body .nb-chart, .notebook-body .nb-chart p { font-family: Inter, system-ui, sans-serif; font-size: 13.5px; line-height: 1.45; }
.notebook-body .nb-chart h3, .notebook-body .nb-chart h4 { font-family: Inter, system-ui, sans-serif; font-size: 15px; }