/* Token bridge — this piece consumes the LFE house system (../../assets/lfe.css).
   The piece's original palette names are aliased onto LFE tokens so that
   every downstream rule, and dark mode, follows the house stylesheet.
   No raw colours may be (re)introduced here. */
:root {
  --paper-2: var(--panel);
  --green: var(--accent);
  --green-dark: var(--accent);
  --saffron: var(--accent);
  --red: var(--accent);
  --blue: var(--accent);
  --surface: var(--paper);
  --surface-raised: var(--panel);
  --shadow: none;
  --radius: 0;
  --sans: var(--serif); /* serif everywhere — house rule 1 */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-soft: cubic-bezier(0.25, 1, 0.5, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.03rem;
  line-height: 1.68;
  letter-spacing: 0;
  text-rendering: optimizeLegibility;
}

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

button:focus-visible,
input:focus-visible,
summary:focus-visible,
a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: 1rem;
  z-index: 20;
  transform: translateY(-160%);
  background: var(--ink);
  color: var(--paper);
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  transition: transform 180ms var(--ease-out);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-shell {
  width: min(1180px, calc(100% - 32px));
  margin-inline: auto;
}

.masthead {
  padding: 4rem 0 0.5rem;
}

.masthead__copy {
  max-width: 760px;
}

.eyebrow,
.section-kicker,
.panel-label,
.metric-label {
  margin: 0 0 0.5rem;
  color: var(--green-dark);
  font-size: 0.76rem;
  font-weight: 800;
  line-height: 1.2;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: 0;
}

h1 {
  max-width: 780px;
  font-size: 3rem;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.35rem;
}

.lede {
  max-width: 680px;
  margin: 1rem 0 0;
  color: var(--muted);
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.2rem;
  line-height: 1.55;
}

.masthead__panel {
  align-self: end;
  width: min(100%, 340px);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 1rem 1.1rem;
  box-shadow: var(--shadow);
}

.masthead__panel strong {
  display: block;
  font-family: var(--serif);
  font-size: 3rem;
  line-height: 1;
}

.masthead__panel span:last-child {
  display: block;
  margin-top: 0.35rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.tabbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  gap: 1.4rem;
  align-items: center;
  padding: 0.8rem 0;
  background: var(--paper);
  border-bottom: 1px solid var(--hairline);
}

.tab-button,
.ghost-button,
.secondary-button,
.mode-button,
.icon-button {
  min-height: 40px;
  border: 1px solid var(--hairline);
  border-radius: 0;
  background: transparent;
  color: var(--muted);
  padding: 0.5rem 0.9rem;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  transition:
    color 160ms var(--ease-out),
    border-color 180ms var(--ease-out),
    background 180ms var(--ease-out);
}

.tab-button:hover,
.ghost-button:hover,
.secondary-button:hover,
.mode-button:hover,
.icon-button:hover {
  color: var(--ink);
  border-color: var(--accent);
}

.tab-button {
  border: none;
  padding: 0.5rem 0.1rem;
}

.tab-button:hover {
  border: none;
}

.tab-button.is-active {
  color: var(--ink);
  font-weight: 700;
  box-shadow: inset 0 -2px 0 var(--accent);
}

.mode-button.is-active {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

.ghost-button {
  margin-left: auto;
  border: none;
  color: var(--accent);
}

.ghost-button:hover {
  color: var(--ink);
}

.tab-panel {
  padding: 1.25rem 0 4rem;
}

.source-layout {
  display: grid;
  gap: 1.2rem;
}

.source-lead {
  max-width: 860px;
  padding: 2rem 0 0.4rem;
}

.source-lead h2 {
  max-width: 760px;
}

.source-lead p:last-child,
.why-ai-section p {
  max-width: 72ch;
  color: color-mix(in oklch, var(--ink), var(--muted) 32%);
  font-family: var(--serif);
  font-size: 1.12rem;
  line-height: 1.6;
}

.article-source-card {
  display: grid;
  gap: 1.2rem;
  align-items: center;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  background: var(--panel);
  padding: 1rem;
  box-shadow: var(--shadow);
}

.article-source-card h3 {
  margin-bottom: 0.65rem;
}

.article-source-card p,
.why-ai-section p,
.reading-card p {
  margin: 0.75rem 0 0;
}

.article-source-card p,
.reading-card p {
  color: var(--muted);
}

.article-source-card a,
.reading-card a {
  color: var(--blue);
  font-weight: 800;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.16em;
}

.article-source-card blockquote {
  margin: 0;
  border-left: 4px solid var(--green);
  padding: 0.1rem 0 0.1rem 1rem;
  color: var(--green-dark);
  font-family: var(--serif);
  font-size: 1.45rem;
  font-weight: 700;
  line-height: 1.25;
}

.why-ai-section,
.reading-guide {
  padding: 1.25rem 0;
  border-top: 1px solid var(--hairline);
}

.reading-guide h3 {
  max-width: 720px;
}

.reading-grid {
  display: grid;
  gap: 0.85rem;
  margin-top: 1rem;
}

.reading-card {
  display: grid;
  align-content: start;
  min-height: 100%;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 1rem;
}

.reading-card span {
  color: var(--green-dark);
  font-size: 0.74rem;
  font-weight: 900;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.reading-card h4,
.engine-explainers h4 {
  margin: 0.45rem 0 0;
  font-family: var(--serif);
  font-size: 1.08rem;
  line-height: 1.2;
}

.source-next {
  margin-top: 0.6rem;
}

.rankings-layout {
  display: grid;
  gap: 1rem;
}

.rankings-lead {
  max-width: 860px;
  padding: 2rem 0 0.4rem;
}

.rankings-lead p:last-child {
  max-width: 72ch;
  color: color-mix(in oklch, var(--ink), var(--muted) 32%);
  font-family: var(--serif);
  font-size: 1.12rem;
  line-height: 1.6;
}

.rank-chart-panel {
  overflow-x: auto;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 1rem;
  box-shadow: var(--shadow);
}

.rank-chart-header {
  display: grid;
  gap: 0.8rem;
  align-items: center;
  margin-bottom: 0.6rem;
}

.rank-mode-switch {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

#rankChart {
  display: block;
  width: 100%;
  height: auto;
}

/* Protagonist chart scheme (house rule): India carries the one accent;
   comparators are neutrals told apart by line style, not colour. */
.rank-line {
  fill: none;
  stroke-width: 2.4;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.rank-line.china,
.rank-dot.china {
  stroke: var(--muted);
}

.rank-line.vietnam,
.rank-dot.vietnam {
  stroke: var(--muted);
}

.rank-line.vietnam {
  stroke-dasharray: 7 6;
}

.rank-line.india,
.rank-dot.india {
  stroke: var(--accent);
}

.rank-line.india {
  stroke-width: 3;
}

.rank-dot {
  fill: var(--surface);
  stroke-width: 3;
}

.rank-end-label {
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 900;
}

.rank-end-label.china {
  fill: var(--muted);
}

.rank-end-label.vietnam {
  fill: var(--muted);
}

.rank-end-label.india {
  fill: var(--accent);
}

.rank-end-value {
  fill: var(--muted);
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 750;
}

.chart-caption {
  margin: 0.7rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.rank-summary-grid {
  display: grid;
  gap: 0.85rem;
}

.rank-summary-card {
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 1rem;
}

.rank-summary-card span {
  display: block;
  color: var(--green-dark);
  font-size: 0.74rem;
  font-weight: 900;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.rank-summary-card strong {
  display: block;
  margin-top: 0.35rem;
  font-family: var(--serif);
  font-size: 1.6rem;
  line-height: 1.05;
}

.rank-summary-card p {
  margin: 0.75rem 0 0;
  color: var(--muted);
}

.rank-summary-card.china,
.rank-summary-card.vietnam {
  border-top: 2px solid var(--hairline);
}

.rank-summary-card.india {
  border-top: 2px solid var(--accent);
}

.rank-teaching-note {
  display: grid;
  gap: 0.8rem;
  border-top: 3px solid var(--ink);
  padding-top: 1.2rem;
}

.rank-teaching-note p {
  max-width: 76ch;
  margin: 0;
  color: color-mix(in oklch, var(--ink), var(--muted) 28%);
}

.rank-teaching-note a {
  color: var(--blue);
  font-weight: 800;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.16em;
}

.rank-teaching-note .ghost-button {
  justify-self: start;
  margin-left: 0;
}

.note-grid {
  display: grid;
  gap: 1.5rem;
}

.essay-flow {
  min-width: 0;
}

.story-step {
  padding: 2rem 0 2.5rem;
  border-bottom: 1px solid var(--hairline);
}

.story-step p:not(.section-kicker) {
  max-width: 68ch;
  margin: 1rem 0 0;
  color: color-mix(in oklch, var(--ink), var(--muted) 25%);
}

.mechanism-note {
  max-width: 68ch;
  margin-top: 1.25rem;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  background: var(--panel);
  padding: 1rem;
}

.denominator-note {
  margin-top: 1rem;
  border-top: 1px solid var(--hairline);
  padding-top: 0.9rem;
}

.denominator-note h3 {
  font-size: 1.18rem;
}

.inline-identity,
.engine-equation {
  display: flex;
  gap: 0.55rem;
  align-items: center;
  flex-wrap: wrap;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 0.72rem 0.85rem;
  color: var(--ink);
  font-weight: 800;
  line-height: 1.25;
}

.inline-identity {
  margin-top: 0.8rem;
}

.inline-identity span,
.engine-equation span {
  min-width: 0;
}

.inline-identity strong,
.engine-equation strong {
  color: var(--green);
}

.model-column {
  display: grid;
  gap: 1rem;
  align-self: start;
  order: -1;
}

.model-board,
.engine-board {
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  background: color-mix(in oklch, var(--surface), var(--paper-2) 16%);
  box-shadow: var(--shadow);
}

.model-board {
  padding: 1rem;
}

.stage-strip {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.stage-pill {
  border: 1px solid var(--hairline);
  border-radius: 999px;
  padding: 0.25rem 0.55rem;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  transition:
    background 220ms var(--ease-out),
    color 220ms var(--ease-out),
    border-color 220ms var(--ease-out);
}

.stage-pill.is-active {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: transparent;
}

.result-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  padding-bottom: 0.9rem;
  border-bottom: 1px solid var(--hairline);
}

.metric-value {
  display: block;
  font-family: var(--serif);
  font-size: 1.7rem;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.chart-wrap {
  margin: 1rem 0 0;
}

#growthChart {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}

.axis,
.grid-line {
  stroke: color-mix(in oklch, var(--hairline), var(--ink) 8%);
  stroke-width: 1;
}

.tick-label,
.chart-note,
.legend-label {
  fill: var(--muted);
  font-family: var(--sans);
  font-size: 13px;
}

.line {
  fill: none;
  stroke-width: 2.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.gdp-line {
  stroke: var(--green);
}

.threshold-line {
  stroke: var(--muted);
  stroke-dasharray: 8 8;
}

.clock-band {
  fill: var(--band);
}

.crossing-rule {
  stroke: var(--red);
  stroke-width: 1.5;
  stroke-dasharray: 5 6;
}

.crossing-dot {
  fill: var(--red);
  stroke: var(--surface);
  stroke-width: 4;
}

.chart-label-bg {
  fill: var(--surface);
  stroke: var(--hairline);
}

.chart-label {
  fill: var(--ink);
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 800;
}

figcaption,
.quiet-note {
  color: var(--muted);
  font-size: 0.9rem;
}

.control-grid,
.engine-controls {
  display: grid;
  gap: 0.8rem;
  margin-top: 1rem;
}

.control {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.35rem 0.75rem;
  align-items: center;
}

.control span {
  font-weight: 750;
}

.control output {
  color: var(--green-dark);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.control input[type="range"] {
  grid-column: 1 / -1;
  width: 100%;
  accent-color: var(--green);
}

.control-help {
  grid-column: 1 / -1;
  line-height: 1.45;
}

.assumptions {
  margin-top: 1rem;
  border-top: 1px solid var(--hairline);
  padding-top: 0.85rem;
}

.assumptions summary {
  color: var(--green-dark);
  font-weight: 800;
  cursor: pointer;
}

.number-grid {
  display: grid;
  gap: 0.7rem;
  margin-top: 0.8rem;
}

.number-grid label {
  display: grid;
  gap: 0.25rem;
  color: var(--muted);
  font-size: 0.86rem;
}

.number-grid input {
  min-height: 42px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
  padding: 0.45rem 0.6rem;
  font-variant-numeric: tabular-nums;
}

.model-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}

.engine-board {
  padding: 1rem;
}

.story-step .engine-board {
  max-width: 68ch;
  margin-top: 1.25rem;
}

.engine-copy h3 {
  margin-bottom: 0.5rem;
}

.engine-diagram {
  display: block;
  width: 100%;
  margin-top: 0.75rem;
}

.engine-equation {
  margin-top: 0.8rem;
  background: var(--panel);
}

.engine-explainers {
  display: grid;
  gap: 0.7rem;
  margin-top: 0.8rem;
}

.engine-explainers article {
  border-left: 3px solid var(--hairline);
  padding-left: 0.8rem;
}

.engine-explainers article {
  border-left-color: var(--hairline);
}

.engine-explainers p,
.control-help {
  color: var(--muted);
  font-size: 0.9rem;
}

.engine-node rect,
.engine-output rect {
  fill: var(--surface);
  stroke: var(--hairline);
}

.node-l rect,
.node-k rect,
.node-a rect {
  stroke: var(--hairline);
}

.engine-output rect {
  stroke: var(--accent);
}

.engine-node text,
.engine-output text {
  text-anchor: middle;
  fill: var(--ink);
  font-family: var(--sans);
  font-weight: 800;
}

.engine-node text + text,
.engine-output text + text,
.engine-output text:last-child {
  fill: var(--muted);
  font-size: 13px;
  font-weight: 650;
}

.engine-arrow {
  fill: none;
  stroke: var(--muted);
  stroke-width: 2.6;
  stroke-linecap: round;
}

.engine-total {
  display: grid;
  gap: 0.55rem;
  margin-top: 1rem;
  border-top: 1px solid var(--hairline);
  padding-top: 0.85rem;
}

.engine-total strong {
  font-family: var(--serif);
  font-size: 2rem;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.chautauqua-layout {
  display: grid;
  gap: 1.5rem;
}

.chautauqua-lead {
  max-width: 820px;
  padding: 2rem 0 0.5rem;
}

.chautauqua-lead p:last-child {
  max-width: 68ch;
  color: var(--muted);
  font-family: var(--serif);
  font-size: 1.15rem;
}

.question-grid {
  display: grid;
  gap: 1rem;
}

.question-card {
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 1rem;
}

.question-card span {
  color: var(--green);
  font-weight: 900;
}

.question-card h3 {
  margin-top: 0.4rem;
}

.question-card p {
  margin: 0.75rem 0 0;
  color: var(--muted);
}

.question-card .q-read {
  margin: 0.95rem 0 0;
  padding-top: 0.75rem;
  border-top: 1px solid var(--hairline);
  font-size: 0.86rem;
}

.question-card .q-read span {
  margin-right: 0.4rem;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.question-card .q-read a {
  color: var(--accent);
}

.discussion-strip {
  display: grid;
  gap: 1rem;
  align-items: center;
  border-top: 3px solid var(--ink);
  padding: 1.25rem 0 0;
}

.provocation {
  max-width: 78ch;
  margin: 0;
  font-family: var(--serif);
  font-size: 1.35rem;
  line-height: 1.45;
}

.equation-drawer {
  position: fixed;
  inset: 0;
  z-index: 30;
  pointer-events: none;
}

.equation-drawer.is-open {
  pointer-events: auto;
}

.drawer-backdrop {
  position: absolute;
  inset: 0;
  background: oklch(19% 0.028 232 / 0.32);
  opacity: 0;
  transition: opacity 240ms var(--ease-out);
}

.equation-drawer.is-open .drawer-backdrop {
  opacity: 1;
}

.drawer-panel {
  position: absolute;
  inset: 0 0 0 auto;
  width: min(480px, 100%);
  overflow: auto;
  transform: translateX(105%);
  border-left: 1px solid var(--hairline);
  background: var(--surface);
  padding: 1rem;
  box-shadow: var(--shadow);
  transition: transform 320ms var(--ease-out);
}

.equation-drawer.is-open .drawer-panel {
  transform: translateX(0);
}

.drawer-header {
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  align-items: start;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--hairline);
}

.icon-button {
  width: 44px;
  padding: 0;
  font-weight: 900;
}

.mode-switch {
  display: flex;
  gap: 0.5rem;
  margin: 1rem 0;
}

.equation-mode p {
  color: var(--muted);
}

.formula-card {
  margin: 0.85rem 0;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  background: var(--paper-2);
  padding: 0.9rem;
  overflow-x: auto;
}

.formula-label {
  margin: 0 0 0.55rem;
  color: var(--green-dark);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.formula {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  min-width: max-content;
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.14rem;
  font-weight: 700;
  line-height: 1.3;
}

.fraction {
  display: inline-grid;
  gap: 0.18rem;
  text-align: center;
}

.fraction span:first-child {
  border-bottom: 1px solid var(--ink);
  padding-bottom: 0.12rem;
}

.fraction span:last-child {
  padding-top: 0.12rem;
}

.formula-definitions {
  display: grid;
  gap: 0.55rem;
  margin: 1rem 0;
}

.formula-definitions div {
  border-left: 2px solid var(--hairline);
  padding-left: 0.7rem;
}

.formula-definitions dt {
  color: var(--ink);
  font-weight: 900;
}

.formula-definitions dd {
  margin: 0.1rem 0 0;
  color: var(--muted);
}

pre {
  white-space: pre-wrap;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  background: var(--paper-2);
  padding: 1rem;
  color: var(--ink);
  font-size: 0.92rem;
  line-height: 1.55;
  overflow: auto;
}

code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-variant-ligatures: none;
}

@media (min-width: 760px) {
  .masthead {
    padding-top: 4.5rem;
  }

  h1 {
    font-size: 4.2rem;
  }

  .question-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .article-source-card {
    grid-template-columns: minmax(0, 1fr) minmax(240px, 0.58fr);
    padding: 1.2rem;
  }

  .reading-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .rank-chart-header {
    grid-template-columns: 1fr auto;
  }

  .rank-summary-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .discussion-strip {
    grid-template-columns: 1fr auto;
  }
}

@media (min-width: 1040px) {
  .note-grid {
    grid-template-columns: minmax(0, 0.88fr) minmax(430px, 1.12fr);
    align-items: start;
  }

  .model-column {
    order: 0;
    position: sticky;
    top: 78px;
    max-height: calc(100vh - 90px);
    overflow: auto;
    padding-bottom: 1rem;
  }

  .number-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .question-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .reading-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .site-shell {
    width: min(100% - 24px, 1180px);
  }

  h1 {
    font-size: 2.45rem;
  }

  h2 {
    font-size: 1.62rem;
  }

  .tabbar {
    flex-wrap: wrap;
    overflow-x: visible;
  }

  .ghost-button {
    margin-left: 0;
    white-space: nowrap;
  }

  .tabbar > .ghost-button {
    flex: 1 0 100%;
  }

  .result-row {
    grid-template-columns: 1fr;
  }

  .article-source-card blockquote {
    font-size: 1.22rem;
  }

  .inline-identity,
  .engine-equation,
  .formula {
    font-size: 0.98rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

.aside-note {
  max-width: 68ch;
  margin-top: 1.25rem;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  background: var(--paper-2);
  padding: 1rem;
}

.aside-note p {
  margin: 0.4rem 0 0;
  color: color-mix(in oklch, var(--ink), var(--muted) 25%);
  font-size: 0.95rem;
}

.sample-note {
  border: 1px solid var(--hairline);
  border-top: 2px solid var(--accent);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 1rem;
}

.sample-note p {
  max-width: 76ch;
  margin: 0.75rem 0 0;
  color: color-mix(in oklch, var(--ink), var(--muted) 28%);
}

.rank-controls {
  display: flex;
  gap: 0.8rem;
  align-items: center;
  margin: 0.4rem 0 0.6rem;
}

.rank-controls input[type="range"] {
  flex: 1;
  min-width: 0;
  accent-color: var(--green);
}

.rank-year-readout {
  min-width: 3.2ch;
  font-family: var(--serif);
  font-size: 1.55rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.rank-race-year {
  fill: color-mix(in oklch, var(--muted), transparent 30%);
  font-family: var(--serif);
  font-size: 44px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.rank-marker circle {
  fill: var(--red);
  stroke: var(--surface);
  stroke-width: 2.5;
}

.rank-marker text {
  fill: var(--ink);
  font-family: var(--sans);
  font-size: 12.5px;
  font-weight: 800;
  paint-order: stroke;
  stroke: var(--surface);
  stroke-width: 4;
  stroke-linejoin: round;
}

.rank-end-label,
.rank-end-value {
  paint-order: stroke;
  stroke: var(--surface);
  stroke-width: 4;
  stroke-linejoin: round;
}

.hover-rule {
  stroke: color-mix(in oklch, var(--ink), transparent 45%);
  stroke-width: 1;
  stroke-dasharray: 3 4;
}

.hover-bg {
  fill: var(--surface);
  stroke: var(--hairline);
}

.hover-text {
  fill: var(--ink);
  font-family: var(--sans);
  font-size: 12.5px;
  font-weight: 700;
}

.hover-dot {
  stroke: var(--surface);
  stroke-width: 2;
}

.hover-dot.gdp {
  fill: var(--green);
}

.hover-dot.threshold {
  fill: var(--muted);
}

.ghost-line {
  fill: none;
  stroke: var(--green);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-dasharray: 1 7;
  opacity: 0.5;
}

.taper-toggle {
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
  margin-top: 1rem;
  border-top: 1px solid var(--hairline);
  padding-top: 0.85rem;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.45;
  cursor: pointer;
}

.taper-toggle input {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 0.2rem;
  accent-color: var(--green);
}

.taper-toggle strong {
  color: var(--ink);
}

.engine-breakdown {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  font-variant-numeric: tabular-nums;
}

.apply-note {
  margin: 0;
  color: var(--red);
  font-size: 0.85rem;
  font-weight: 700;
}

.formula-steps {
  display: grid;
  gap: 0.55rem;
  margin: 0.85rem 0;
}

.formula-steps .formula-card {
  margin: 0;
}

.formula-note {
  margin: 0.55rem 0 0;
  color: var(--muted);
  font-size: 0.88rem;
}

@media (max-width: 640px) {
  .rank-controls {
    flex-wrap: wrap;
  }

  .rank-year-readout {
    font-size: 1.3rem;
  }

  .rank-race-year {
    font-size: 34px;
  }
}