/* Probability Rail — the working surface for DIAGCALC.
   The world is clinical epidemiology: graph paper, ruled ink, one vermilion
   active result and a single probability rail. Navigation and controls stay
   standard web affordances. */

@font-face {
  font-family: "Plex Sans";
  src: url("fonts/ibm-plex-sans-latin-400-normal.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Plex Sans";
  src: url("fonts/ibm-plex-sans-latin-500-normal.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Plex Sans";
  src: url("fonts/ibm-plex-sans-latin-600-normal.woff2") format("woff2");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Plex Mono";
  src: url("fonts/ibm-plex-mono-latin-400-normal.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Plex Mono";
  src: url("fonts/ibm-plex-mono-latin-500-normal.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Plex Serif";
  src: url("fonts/ibm-plex-serif-latin-400-italic.woff2") format("woff2");
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}

:root {
  --paper: #faf7ee;
  --paper-2: #f1ebdd;
  --paper-3: #e8e0cf;
  --ink: #1c2b27;
  --ink-soft: #4f5b55;
  --rule: #c9c1ae;
  --rule-strong: #938b78;
  --red: #a9432e;
  --green: #2f6b57;
  --ochre: #876019;
  --font-ui: "Plex Sans", ui-sans-serif, "Avenir Next", "Segoe UI", sans-serif;
  --font-mono: "Plex Mono", ui-monospace, "SFMono-Regular", Consolas, monospace;
  --font-serif: "Plex Serif", Georgia, "Iowan Old Style", serif;
  --radius: 2px;
  --bg: var(--paper);
  --surface: var(--paper-2);
  --surface-soft: var(--paper);
  --border: var(--rule);
  --text: var(--ink);
  --text-strong: var(--ink);
  --text-muted: var(--ink-soft);
  --primary: var(--red);
  --primary-strong: var(--ink);
  --secondary: var(--green);
  --success: var(--green);
  --warning: var(--ochre);
  --error: var(--red);
  --accent-warm: var(--red);
  --axis: var(--rule-strong);
  --crew-pip: var(--ochre);
  --crew-queequeg: var(--red);
}

html[data-theme="dark"] {
  --paper: #101714;
  --paper-2: #17201c;
  --paper-3: #202b25;
  --ink: #ede7d8;
  --ink-soft: #b9c2ba;
  --rule: #3b473f;
  --rule-strong: #65726a;
  --red: #e07a5f;
  --green: #8fbf9f;
  --ochre: #d4ae63;
  --bg: var(--paper);
  --surface: var(--paper-2);
  --surface-soft: var(--paper);
  --border: var(--rule);
  --text: var(--ink);
  --text-strong: var(--ink);
  --text-muted: var(--ink-soft);
  --primary: var(--red);
  --secondary: var(--green);
  --success: var(--green);
  --warning: var(--ochre);
  --error: var(--red);
  --accent-warm: var(--red);
  --axis: var(--rule-strong);
  --crew-pip: var(--ochre);
  --crew-queequeg: var(--red);
}

html {
  background: var(--paper);
  color-scheme: light;
}
html[data-theme="dark"] {
  color-scheme: dark;
}
body.design-rail {
  margin: 0;
  min-height: 100vh;
  background: var(--paper);
  background-image: none;
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
body.design-rail *,
body.design-rail *::before,
body.design-rail *::after {
  box-sizing: border-box;
}
body.design-rail ::selection {
  background: var(--red);
  color: var(--paper);
}
body.design-rail {
  scrollbar-color: var(--rule-strong) transparent;
}
body.design-rail :focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 2px;
}
body.design-rail a {
  color: var(--red);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}
body.design-rail a:hover {
  color: var(--ink);
}
body.design-rail .visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}
body.design-rail .skip-link {
  position: fixed;
  z-index: 100;
  left: 16px;
  top: 12px;
  transform: translateY(-200%);
  background: var(--ink);
  color: var(--paper);
  padding: 10px 14px;
  font: 600 13px/1.2 var(--font-ui);
  text-decoration: none;
}
body.design-rail .skip-link:focus {
  transform: translateY(0);
}

/* ── App bar ───────────────────────────────────────────────────────────── */
body.design-rail .app-bar {
  position: relative;
  background: var(--paper);
  border: 0;
  border-bottom: 1px solid var(--rule);
  box-shadow: none;
  padding: 0;
}
body.design-rail .app-bar-inner {
  max-width: 1440px;
  margin: 0 auto;
  padding: 12px clamp(18px, 4vw, 48px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
body.design-rail .brand-block {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  column-gap: 14px;
  row-gap: 2px;
}
body.design-rail .brand {
  margin: 0;
  font-family: var(--font-ui);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  line-height: 1.1;
  color: var(--ink);
}
body.design-rail .brand-sub {
  margin: 0;
  color: var(--ink-soft);
  font-size: 12px;
  letter-spacing: 0.01em;
}
body.design-rail .app-version {
  color: var(--ink-soft);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  white-space: nowrap;
}
body.design-rail .app-case {
  flex-basis: auto;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  border-top: 0;
  border-left: 1px solid var(--rule);
  padding: 0 0 0 12px;
  margin: 0;
}
body.design-rail .app-case:empty {
  display: none;
}
body.design-rail .app-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: nowrap;
  justify-content: flex-end;
}
body.design-rail .app-controls .print-button {
  width: auto;
  flex: 0 0 auto;
  white-space: nowrap;
}
body.design-rail .app-controls select,
body.design-rail .app-controls button {
  min-height: 34px;
}
body.design-rail .lang-picker select {
  padding: 6px 26px 6px 9px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--ink);
  font: 500 12px/1.2 var(--font-ui);
}
body.design-rail .theme-toggle {
  width: 36px;
  height: 34px;
  display: grid;
  place-items: center;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--ink);
  font-size: 15px;
}
body.design-rail .theme-icon {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
  grid-area: 1 / 1;
}
body.design-rail .theme-icon--sun {
  display: none;
}
html[data-theme="dark"] body.design-rail .theme-icon--sun {
  display: block;
}
html[data-theme="dark"] body.design-rail .theme-icon--moon {
  display: none;
}
body.design-rail .theme-toggle:hover {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}
body.design-rail .icon-close {
  width: 14px;
  height: 14px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
}
body.design-rail .print-button {
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: transparent;
  color: var(--ink);
  font: 500 12px/1.2 var(--font-ui);
  padding: 8px 12px;
}

/* ── Tabs ──────────────────────────────────────────────────────────────── */
body.design-rail .tabbar {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 clamp(18px, 4vw, 48px);
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--rule);
  background: var(--paper);
}
body.design-rail .tab {
  appearance: none;
  background: var(--paper);
  border: 0;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  color: var(--ink-soft);
  font: 500 13px/1.2 var(--font-ui);
  padding: 13px 16px 11px;
  cursor: pointer;
}
body.design-rail .tab:first-child {
  padding-left: 0;
}
body.design-rail .tab:hover {
  color: var(--ink);
  background: transparent;
  border-color: var(--rule);
}
body.design-rail .tab[aria-selected="true"] {
  color: var(--ink);
  border-bottom-color: var(--red);
  font-weight: 600;
}
body.design-rail .tab[aria-selected="true"]::after {
  content: none;
}

/* ── Layout ────────────────────────────────────────────────────────────── */
body.design-rail .container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 30px clamp(18px, 4vw, 48px) 72px;
}
body.design-rail .tab-panel[hidden] {
  display: none !important;
}
body.design-rail .case-workspace {
  display: grid;
  grid-template-columns: minmax(340px, 5fr) minmax(0, 7fr);
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}
body.design-rail .case-sheet,
body.design-rail .result-sheet {
  min-width: 0;
}
body.design-rail .case-sheet {
  border-top: 2px solid var(--ink);
  padding-top: 16px;
}
body.design-rail .result-sheet {
  border-top: 2px solid var(--red);
  padding-top: 16px;
}
body.design-rail .sheet-head {
  margin-bottom: 18px;
}
body.design-rail .sheet-head h2,
body.design-rail .tab-head h2 {
  margin: 0 0 5px;
  font-family: var(--font-ui);
  font-size: clamp(1.35rem, 2.2vw, 1.75rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.15;
  color: var(--ink);
}
body.design-rail .help-text {
  margin: 0;
  max-width: 70ch;
  color: var(--ink-soft);
  font-size: 12.5px;
  line-height: 1.45;
}
body.design-rail .tab-head {
  border-top: 2px solid var(--ink);
  padding-top: 16px;
  margin-bottom: 26px;
}
body.design-rail .tab-head .help-text {
  max-width: 76ch;
  font-size: 13px;
}

/* ── Forms ─────────────────────────────────────────────────────────────── */
body.design-rail .form-row {
  margin: 0 0 16px;
  gap: 0;
}
body.design-rail .form-row > label,
body.design-rail .confusion-matrix legend,
body.design-rail .threshold-input label,
body.design-rail .sequential-controls label,
body.design-rail .roc-table-wrapper > label {
  display: block;
  margin-bottom: 6px;
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  line-height: 1.3;
  text-transform: uppercase;
}
body.design-rail .form-row .help-text {
  margin-top: 4px;
}
body.design-rail .roc-table-wrapper .roc-table {
  margin-top: 8px;
}
body.design-rail input[type="text"],
body.design-rail input[type="number"],
body.design-rail select,
body.design-rail textarea {
  width: 100%;
  min-height: 40px;
  padding: 8px 10px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--ink);
  font: 400 14px/1.35 var(--font-ui);
  caret-color: var(--red);
}
body.design-rail input[type="number"] {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}
body.design-rail input:hover,
body.design-rail select:hover {
  border-color: var(--rule-strong);
}
body.design-rail input:focus,
body.design-rail select:focus {
  border-color: var(--ink);
  outline: 2px solid var(--red);
  outline-offset: 1px;
}
body.design-rail input::placeholder {
  color: var(--ink-soft);
  opacity: 1;
}
body.design-rail .confusion-matrix {
  margin: 0 0 16px;
  padding: 0 8px 8px;
  border: 0;
  min-width: 0;
}
body.design-rail .grid-container {
  display: grid;
  grid-template-columns: minmax(74px, 0.9fr) 1fr 1fr;
  gap: 0;
  border: 1px solid var(--rule-strong);
  background: var(--rule);
}
body.design-rail .grid-container > * {
  min-width: 0;
}
body.design-rail .grid-header {
  background: var(--paper-2);
  color: var(--ink-soft);
  font: 600 11px/1.25 var(--font-ui);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 8px 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  border: 0;
}
body.design-rail .grid-label {
  background: var(--paper-2);
  color: var(--ink-soft);
  font: 600 11px/1.25 var(--font-ui);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 8px 10px;
  display: flex;
  align-items: center;
  border: 0;
}
body.design-rail .grid-item {
  background: var(--paper);
  padding: 0;
  border: 0;
  display: flex;
  align-items: stretch;
}
body.design-rail .grid-item input {
  width: 100%;
  min-height: 52px;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--ink);
  text-align: center;
  font: 400 clamp(1rem, 2.4vw, 1.25rem)/1 var(--font-mono);
  padding: 8px 6px;
}
body.design-rail .grid-item input:focus {
  outline: 2px solid var(--red);
  outline-offset: -2px;
}
body.design-rail .preTestProb {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 16px;
}
body.design-rail .advanced-settings {
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  margin: 0 0 18px;
  padding: 9px 8px;
}
body.design-rail .advanced-settings summary {
  cursor: pointer;
  color: var(--ink-soft);
  font: 500 12px/1.3 var(--font-ui);
}
body.design-rail .advanced-settings[open] summary {
  margin-bottom: 10px;
}
body.design-rail .form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}
body.design-rail button,
body.design-rail .form-actions button {
  width: auto;
  min-height: 40px;
  padding: 9px 15px;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  background: var(--ink);
  color: var(--paper);
  font: 500 13px/1.2 var(--font-ui);
  cursor: pointer;
}
body.design-rail button:hover {
  background: var(--red);
  border-color: var(--red);
  color: var(--paper);
}
body.design-rail button.secondary {
  background: var(--paper);
  color: var(--ink);
  border-color: var(--rule-strong);
}
body.design-rail button.secondary:hover {
  border-color: var(--ink);
  color: var(--ink);
  background: var(--paper-2);
}
body.design-rail button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}
body.design-rail .feedback {
  margin: 12px 0 0;
  min-height: 20px;
  color: var(--ink-soft);
  font-size: 12px;
  line-height: 1.45;
}
body.design-rail .feedback.error {
  color: var(--red);
}
body.design-rail .feedback.success {
  color: var(--green);
}
body.design-rail .bias-warnings {
  display: none;
  margin: 0 0 16px;
  padding: 10px 12px;
  border: 0;
  border-top: 1px solid var(--ochre);
  border-bottom: 1px solid var(--ochre);
  background: var(--paper-2);
  color: var(--ink);
  font-size: 12px;
}
body.design-rail .bias-warnings.visible {
  display: block;
}
body.design-rail .bias-warnings-heading {
  margin: 0 0 5px;
  color: var(--ochre);
  font: 600 11px/1.2 var(--font-ui);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
body.design-rail .bias-warnings-list {
  margin: 0;
  padding-left: 16px;
}
body.design-rail .bias-warnings-list li + li {
  margin-top: 3px;
}

/* ── Result strip and ledger ───────────────────────────────────────────── */
body.design-rail .results-headline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--rule-strong);
  border-bottom: 1px solid var(--rule-strong);
  margin: 0 0 14px;
}
body.design-rail .results-headline .result-card {
  background: transparent;
  border: 0;
  border-right: 1px solid var(--rule);
  border-radius: 0;
  box-shadow: none;
  padding: 10px 12px 11px;
  margin: 0;
  gap: 4px;
}
body.design-rail .results-headline .result-card:last-child {
  border-right: 0;
}
body.design-rail .results-headline .result-ci {
  white-space: nowrap;
  font-size: 11px;
}
body.design-rail .result-card h3 {
  margin: 0 0 4px;
  color: var(--ink-soft);
  font: 600 11px/1.25 var(--font-ui);
  letter-spacing: 0.07em;
  text-transform: uppercase;
}
body.design-rail .result-value {
  margin: 0;
  color: var(--ink);
  font: 500 clamp(1.05rem, 1.6vw, 1.35rem)/1.1 var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}
body.design-rail .result-ci,
body.design-rail .result-note {
  margin: 4px 0 0;
  color: var(--ink-soft);
  font-size: 12px;
  line-height: 1.4;
}
body.design-rail .result-note {
  margin-top: 5px;
}
body.design-rail .metric-ledger {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-bottom: 1px solid var(--rule-strong);
  margin-bottom: 20px;
}
body.design-rail .metric-ledger .result-card {
  background: transparent;
  border: 0;
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  border-radius: 0;
  box-shadow: none;
  margin: 0;
  padding: 10px 12px;
  min-width: 0;
}
body.design-rail .metric-ledger .result-card:nth-child(3n) {
  border-right: 0;
}
body.design-rail .metric-ledger .result-value {
  font-size: 1.1rem;
}
body.design-rail .result-bar,
body.design-rail .result-band {
  margin-top: 7px;
  border-radius: 0;
  height: 3px;
  background: var(--paper-3);
}
body.design-rail .result-band {
  height: 4px;
  overflow: hidden;
}
body.design-rail .result-bar-fill {
  border-radius: 0;
}
body.design-rail .result-band-zone {
  border-radius: 0;
}
body.design-rail .result-band-marker {
  border-radius: 0;
  background: var(--ink);
}
body.design-rail .result-bar--unavailable,
body.design-rail .result-band--unavailable {
  border: 1px dashed var(--rule-strong);
  background: transparent;
}
body.design-rail .results-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid var(--rule);
}

/* ── The rail ──────────────────────────────────────────────────────────── */
body.design-rail .rail-mount {
  margin: 8px 0 22px;
  min-height: 280px;
}
body.design-rail .rail-empty {
  min-height: 280px;
  margin: 0;
  display: grid;
  place-items: center;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  background-image: linear-gradient(to right, var(--rule) 1px, transparent 1px);
  background-size: 10% 100%;
  color: var(--ink-soft);
  font: italic 1rem/1.5 var(--font-serif);
  text-align: center;
  padding: 24px;
}
body.design-rail .probability-rail {
  border-top: 1px solid var(--rule);
  padding-top: 12px;
}
body.design-rail .rail-controls {
  display: inline-flex;
  align-items: stretch;
  border: 1px solid var(--rule-strong);
  border-radius: var(--radius);
  overflow: hidden;
}
body.design-rail .rail-toggle {
  appearance: none;
  border: 0;
  border-right: 1px solid var(--rule-strong);
  border-radius: 0;
  background: var(--paper);
  color: var(--ink-soft);
  min-height: 32px;
  padding: 6px 11px;
  font: 500 11px/1.2 var(--font-ui);
  cursor: pointer;
}
body.design-rail .rail-toggle:last-child {
  border-right: 0;
}
body.design-rail .rail-toggle[aria-pressed="true"] {
  background: var(--ink);
  color: var(--paper);
}
body.design-rail .rail-toggle:hover {
  background: var(--paper-2);
  color: var(--ink);
}
body.design-rail .rail-toggle[aria-pressed="true"]:hover {
  background: var(--red);
  color: var(--paper);
}
body.design-rail .rail-body {
  margin-top: 18px;
}
body.design-rail .rail-track {
  position: relative;
  height: 156px;
  margin: 0 0 6px;
  background-image: linear-gradient(to right, var(--rule) 1px, transparent 1px);
  background-size: 10% 100%;
  background-position: 0 0;
  border-bottom: 1px solid var(--rule-strong);
}
body.design-rail .rail-axis {
  position: absolute;
  left: 0;
  right: 0;
  top: 78px;
  height: 2px;
  background: var(--ink);
}
body.design-rail .rail-ticks {
  position: absolute;
  inset: 0;
}
body.design-rail .rail-tick {
  position: absolute;
  top: 82px;
  transform: translateX(-50%);
  color: var(--ink-soft);
  font: 400 11px/1 var(--font-mono);
  white-space: nowrap;
  padding-top: 5px;
  border-top: 1px solid var(--rule-strong);
}
body.design-rail .rail-tick::before {
  content: "";
  position: absolute;
  left: 50%;
  top: -4px;
  width: 1px;
  height: 5px;
  background: var(--rule-strong);
}
body.design-rail .rail-line {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
  pointer-events: none;
}
body.design-rail .rail-line line {
  stroke: var(--red);
  stroke-width: 2;
  stroke-linecap: square;
  stroke-dasharray: 1;
  stroke-dashoffset: 0;
  animation: rail-draw 320ms cubic-bezier(0.22, 0.61, 0.36, 1);
}
@keyframes rail-draw {
  from { stroke-dashoffset: 1; }
  to { stroke-dashoffset: 0; }
}
body.design-rail .probability-rail[data-result="negative"] .rail-line line {
  stroke: var(--green);
}
body.design-rail .rail-marker {
  position: absolute;
  top: 70px;
  width: 2px;
  height: 18px;
  transform: translateX(-50%);
  background: var(--ink);
  pointer-events: none;
}
body.design-rail .rail-marker--pre {
  background: var(--ink);
}
body.design-rail .rail-marker--post {
  top: 62px;
  width: 4px;
  height: 34px;
  background: var(--red);
  animation: rail-marker-in 220ms cubic-bezier(0.22, 0.61, 0.36, 1);
}
@keyframes rail-marker-in {
  from { opacity: 0.35; transform: translateX(-50%) scaleY(0.65); }
  to { opacity: 1; transform: translateX(-50%) scaleY(1); }
}
body.design-rail .probability-rail[data-result="negative"] .rail-marker--post {
  background: var(--green);
}
body.design-rail .rail-marker--inactive {
  top: 74px;
  height: 10px;
  width: 1px;
  background: var(--rule-strong);
}
body.design-rail .rail-marker-label {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  min-width: 90px;
  text-align: center;
  color: var(--ink);
  font: 500 11px/1.2 var(--font-mono);
  white-space: nowrap;
}
body.design-rail .rail-marker--pre .rail-marker-label {
  top: -22px;
}
body.design-rail .rail-marker--post .rail-marker-label {
  top: 40px;
  color: var(--red);
}
body.design-rail .probability-rail[data-result="negative"] .rail-marker--post .rail-marker-label {
  color: var(--green);
}
body.design-rail .rail-ci {
  position: absolute;
  top: 72px;
  height: 12px;
  border-top: 1px solid var(--red);
  border-left: 1px solid var(--red);
  border-right: 1px solid var(--red);
  background: color-mix(in srgb, var(--red) 12%, transparent);
}
body.design-rail .probability-rail[data-result="negative"] .rail-ci {
  border-color: var(--green);
  background: color-mix(in srgb, var(--green) 12%, transparent);
}
body.design-rail .rail-ci--corrected {
  border-top-style: dashed;
}
body.design-rail .rail-unavailable {
  position: absolute;
  left: 50%;
  top: 60px;
  transform: translateX(-50%);
  color: var(--ochre);
  font: 500 11px/1.3 var(--font-ui);
  white-space: nowrap;
}
body.design-rail .rail-readout {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
  padding: 8px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-soft);
}
body.design-rail .rail-readout-item {
  display: inline-flex;
  align-items: baseline;
  gap: 5px;
}
body.design-rail .rail-readout-label {
  color: var(--ink-soft);
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
body.design-rail .rail-readout-op {
  color: var(--rule-strong);
}
body.design-rail .rail-readout-post {
  color: var(--red);
  font-size: 1.9rem;
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1;
}
body.design-rail .probability-rail[data-result="negative"] .rail-readout-post {
  color: var(--green);
}
body.design-rail .rail-readout-post .rail-readout-label {
  font-size: 11px;
}
body.design-rail .rail-ci-label {
  margin: 4px 0 0;
  color: var(--ink-soft);
  font: 400 11px/1.35 var(--font-mono);
}
body.design-rail .probability-rail--unavailable .rail-readout-post {
  color: var(--ochre);
}

/* ── Teaching margin ───────────────────────────────────────────────────── */
body.design-rail .teaching-note {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--rule);
}
body.design-rail .teaching-note h3 {
  margin: 0 0 6px;
  color: var(--ink);
  font: 600 11px/1.2 var(--font-ui);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
body.design-rail .teaching-note p {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-serif);
  font-size: 1.02rem;
  font-style: italic;
  line-height: 1.55;
  max-width: 62ch;
}
body.design-rail .teaching-source {
  margin-top: 8px !important;
  color: var(--ink-soft) !important;
  font-family: var(--font-ui) !important;
  font-size: 12px !important;
  font-style: normal !important;
  line-height: 1.45 !important;
}

/* ── Dataset reference ─────────────────────────────────────────────────── */
body.design-rail .dataset-reference {
  margin: 10px 0 2px;
  padding: 10px 0 0;
  background: transparent;
  border: 0;
  border-top: 1px solid var(--rule);
  border-radius: 0;
  font-size: 12px;
}
body.design-rail .dataset-reference h4 {
  margin: 0 0 5px;
  color: var(--ink);
  font: 600 11px/1.2 var(--font-ui);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
body.design-rail .dataset-reference p {
  margin: 0 0 5px;
  color: var(--ink-soft);
  line-height: 1.4;
}
body.design-rail .dataset-reference .reference-citation {
  color: var(--ink-soft);
  font-size: 11px;
}

/* ── Explore tools ─────────────────────────────────────────────────────── */
body.design-rail .tool-grid {
  display: grid;
  grid-template-columns: 1fr;
  row-gap: 0;
}
body.design-rail .tool {
  min-width: 0;
  border-top: 1px solid var(--rule-strong);
  padding: 14px 8px 18px;
}
body.design-rail .tool > summary:hover {
  color: var(--red);
}
body.design-rail .tool[open] > summary {
  margin-bottom: 8px;
}
body.design-rail .tool h3,
body.design-rail .tool h2 {
  margin: 0 0 6px;
  color: var(--ink);
  font: 600 14px/1.3 var(--font-ui);
}
body.design-rail .tool > .help-text,
body.design-rail .tool > p {
  margin: 8px 0 12px;
}
body.design-rail .tool .form-actions {
  margin-top: 10px;
}
body.design-rail .fagan-nomogram canvas,
body.design-rail .tool canvas {
  display: block;
  width: 100%;
  max-width: 100%;
  border: 1px solid var(--rule);
  background: var(--paper);
}
body.design-rail .fagan-layout {
  display: grid;
  grid-template-columns: minmax(0, 600px) minmax(0, 1fr);
  gap: 20px 36px;
  align-items: start;
}
body.design-rail #faganCanvas {
  width: 100%;
  height: auto;
}
body.design-rail #rocCanvas {
  width: min(100%, 520px);
  height: auto;
  max-height: none;
  display: block;
  margin-inline: auto;
}
body.design-rail #prevalenceCanvas {
  width: min(100%, 600px);
  height: auto;
  max-height: none;
  display: block;
  margin-inline: auto;
}
body.design-rail .fagan-summary {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 24px;
  margin: 0;
}
body.design-rail .fagan-summary-item dt {
  color: var(--ink-soft);
  font: 600 11px/1.2 var(--font-ui);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
body.design-rail .fagan-summary-item dd {
  margin: 2px 0 0;
  color: var(--ink);
  font: 500 13px/1.2 var(--font-mono);
}
body.design-rail .sequential-pretest {
  margin: 8px 0 0;
  padding: 0;
  border: 0;
  background: transparent;
  border-radius: 0;
  color: var(--ink);
  font: 500 12px/1.4 var(--font-mono);
}
body.design-rail .threshold-input {
  margin: 8px 0 0;
}
body.design-rail .threshold-input label {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}
body.design-rail .threshold-input output {
  font-family: var(--font-mono);
  color: var(--ink);
}
body.design-rail .threshold-gauge {
  height: 18px;
  border-radius: 0;
  border: 1px solid var(--rule-strong);
  margin: 10px 0 6px;
  overflow: visible;
}
body.design-rail .threshold-marker-pre::after {
  content: "";
  position: absolute;
  bottom: -0.9rem;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 6px solid var(--red);
}
body.design-rail .threshold-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  color: var(--ink-soft);
  font-size: 11px;
}
body.design-rail .threshold-legend > span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
body.design-rail .threshold-readout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid var(--rule);
  margin-top: 12px;
}
body.design-rail .threshold-stat,
body.design-rail .prevalence-stat,
body.design-rail .kappa-stat {
  border-bottom: 1px solid var(--rule);
  border-right: 1px solid var(--rule);
  padding: 8px 10px;
}
body.design-rail .threshold-stat:nth-child(2n),
body.design-rail .prevalence-stat:nth-child(2n),
body.design-rail .kappa-stat:nth-child(2n) {
  border-right: 0;
}
body.design-rail .threshold-stat-label,
body.design-rail .prevalence-stat-label,
body.design-rail .kappa-stat-label {
  display: block;
  color: var(--ink-soft);
  font: 600 11px/1.2 var(--font-ui);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
body.design-rail .threshold-stat-value,
body.design-rail .prevalence-stat-value,
body.design-rail .kappa-stat-value {
  display: block;
  margin-top: 3px;
  color: var(--ink);
  font: 500 15px/1.25 var(--font-mono);
}
body.design-rail .prevalence-readout,
body.design-rail .kappa-result {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--rule);
  margin-top: 12px;
}
body.design-rail .threshold-demo-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--rule);
  margin-top: 12px;
}
body.design-rail .threshold-demo-stat {
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  padding: 8px 10px;
}
body.design-rail .threshold-demo-stat:last-child {
  border-right: 0;
}
body.design-rail .threshold-demo-stat-label {
  color: var(--ink-soft);
  font: 600 11px/1.2 var(--font-ui);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
body.design-rail .threshold-demo-stat-value {
  margin-top: 3px;
  color: var(--ink);
  font: 500 15px/1.25 var(--font-mono);
}
body.design-rail .threshold-demo-stat-sub {
  margin-top: 2px;
  color: var(--ink-soft);
  font-size: 11px;
}
body.design-rail .threshold-demo-matrix {
  display: grid;
  grid-template-columns: minmax(72px, 0.8fr) 1fr 1fr;
  border: 1px solid var(--rule-strong);
  margin-top: 12px;
}
body.design-rail .threshold-demo-cell {
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  padding: 7px 9px;
  min-width: 0;
}
body.design-rail .threshold-demo-cell.head {
  background: var(--paper-2);
  color: var(--ink-soft);
  font: 600 11px/1.2 var(--font-ui);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
body.design-rail .threshold-demo-cell-n {
  color: var(--ink);
  font: 500 16px/1.1 var(--font-mono);
}
body.design-rail .threshold-demo-cell-meta {
  color: var(--ink-soft);
  font-size: 11px;
}
body.design-rail .threshold-demo-note {
  margin: 10px 0 0;
  color: var(--ink-soft);
  font-size: 11px;
}
body.design-rail .prevalence-controls,
body.design-rail .threshold-demo-controls {
  display: grid;
  gap: 6px;
  margin: 10px 0;
}
body.design-rail .prevalence-controls label,
body.design-rail .threshold-demo-controls label {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 0;
  color: var(--ink);
  font: 600 11px/1.3 var(--font-ui);
}
body.design-rail .prevalence-controls output,
body.design-rail .threshold-demo-controls output {
  font-family: var(--font-mono);
  color: var(--red);
}
body.design-rail input[type="range"] {
  accent-color: var(--red);
  width: 100%;
  min-height: 24px;
  padding: 0;
  border: 0;
  background: transparent;
}
body.design-rail .roc-table-wrapper {
  overflow-x: auto;
  margin: 8px 0;
}
body.design-rail .roc-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 12px;
}
body.design-rail .roc-table th {
  color: var(--ink-soft);
  font: 600 11px/1.2 var(--font-ui);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-align: left;
  border-bottom: 1px solid var(--rule-strong);
  padding: 6px;
}
body.design-rail .roc-table td {
  border-bottom: 1px solid var(--rule);
  padding: 3px;
}
body.design-rail .roc-table input {
  min-height: 32px;
  padding: 4px 5px;
  border: 0;
  border-bottom: 1px solid transparent;
  background: transparent;
  font-size: 12px;
  text-align: right;
}
body.design-rail .roc-table input:focus {
  border-bottom-color: var(--red);
  outline: 0;
}
body.design-rail .roc-remove {
  min-height: 28px;
  padding: 2px 7px;
  background: var(--paper);
  border-color: var(--rule);
  color: var(--ink-soft);
}
body.design-rail .roc-readout {
  margin-top: 8px;
  color: var(--ink);
  font-size: 12px;
}
body.design-rail .roc-stat {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid var(--rule);
  padding: 5px 0;
}
body.design-rail .roc-stat-label {
  color: var(--ink-soft);
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
body.design-rail .roc-stat-value {
  font-family: var(--font-mono);
}
body.design-rail .roc-flash {
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--green);
  font-size: 11px;
}

/* ── Learn and history ─────────────────────────────────────────────────── */
body.design-rail .resource-grid,
body.design-rail .learn-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 48px;
  row-gap: 0;
  align-items: start;
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}
body.design-rail .learn-col {
  min-width: 0;
}
body.design-rail .learn-section {
  min-width: 0;
  border-top: 1px solid var(--rule-strong);
  padding: 14px 0 20px;
}
body.design-rail .learn-section h2 {
  margin: 0 0 10px;
  color: var(--ink);
  font: 600 1.1rem/1.25 var(--font-ui);
}
body.design-rail .learn-section details {
  border-bottom: 1px solid var(--rule);
  padding: 8px 0;
}
body.design-rail .learn-section summary {
  cursor: pointer;
  color: var(--ink);
  font: 500 12.5px/1.35 var(--font-ui);
}
body.design-rail .learn-section summary:hover {
  color: var(--red);
}
body.design-rail .learn-section p {
  margin: 8px 0 0;
  color: var(--ink-soft);
  font-size: 12.5px;
  line-height: 1.55;
}
body.design-rail .learn-section h3 {
  margin: 8px 0 3px;
  color: var(--ink);
  font: 600 12px/1.3 var(--font-ui);
}
body.design-rail .reference-list {
  margin: 6px 0 0;
  padding-left: 16px;
  color: var(--ink-soft);
  font-size: 12px;
  line-height: 1.5;
}
body.design-rail .reference-list li + li {
  margin-top: 8px;
}
body.design-rail .about-points {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 14px;
}
body.design-rail .about-points p {
  margin: 0;
  font-size: 12px;
}
body.design-rail .history-empty {
  margin: 0 0 18px;
  color: var(--ink-soft);
  font: italic 1rem/1.5 var(--font-serif);
}
body.design-rail .history-panel {
  border-top: 1px solid var(--rule-strong);
  padding-top: 10px;
}
body.design-rail .history-panel > summary {
  cursor: pointer;
  color: var(--ink);
  font: 600 13px/1.3 var(--font-ui);
}
body.design-rail .history-list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
}
body.design-rail .history-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 10px;
  align-items: start;
  border-top: 1px solid var(--rule);
  padding: 10px 0;
  background: transparent;
  border-radius: 0;
}
body.design-rail .history-item input[type="checkbox"] {
  margin-top: 3px;
  accent-color: var(--red);
}
body.design-rail .history-item-label {
  min-width: 0;
  cursor: pointer;
}
body.design-rail .history-item-title {
  display: block;
  color: var(--ink);
  font: 500 13px/1.3 var(--font-ui);
}
body.design-rail .history-item-meta,
body.design-rail .history-item-stats,
body.design-rail .history-item-date {
  display: block;
  color: var(--ink-soft);
  font: 400 11px/1.4 var(--font-mono);
}
body.design-rail .history-item-actions {
  display: flex;
  gap: 5px;
}
body.design-rail .history-item-actions button {
  min-height: 30px;
  padding: 4px 8px;
  font-size: 11px;
}
body.design-rail .history-item-delete {
  color: var(--ink-soft);
}
body.design-rail .history-compare {
  overflow-x: auto;
  margin: 12px 0;
}
body.design-rail .history-compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 11px;
}
body.design-rail .history-compare-table th,
body.design-rail .history-compare-table td {
  border-bottom: 1px solid var(--rule);
  padding: 5px 7px;
  text-align: left;
  vertical-align: top;
}
body.design-rail .history-compare-table th {
  color: var(--ink-soft);
  font: 600 11px/1.25 var(--font-ui);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* ── Footer ────────────────────────────────────────────────────────────── */
body.design-rail footer {
  border-top: 1px solid var(--rule);
  margin-top: 32px;
  padding: 18px clamp(18px, 4vw, 48px) 36px;
  color: var(--ink-soft);
  font-size: 11px;
  line-height: 1.5;
  background: var(--paper);
}
body.design-rail footer p {
  max-width: 90ch;
  margin: 0 0 5px;
}
body.design-rail footer .privacy-note {
  color: var(--green);
}

/* ── Responsive ────────────────────────────────────────────────────────── */
@media (max-width: 1240px) {
  body.design-rail .results-headline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  body.design-rail .results-headline .result-card:nth-child(2n) {
    border-right: 0;
  }
  body.design-rail .results-headline .result-card:nth-child(n + 3) {
    border-top: 1px solid var(--rule);
  }
}
@media (max-width: 1080px) {
  body.design-rail .case-workspace {
    grid-template-columns: minmax(300px, 5fr) minmax(0, 6fr);
    gap: 30px;
  }
  body.design-rail .metric-ledger {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  body.design-rail .metric-ledger .result-card:nth-child(3n) {
    border-right: 1px solid var(--rule);
  }
  body.design-rail .metric-ledger .result-card:nth-child(2n) {
    border-right: 0;
  }
  body.design-rail .resource-grid,
  body.design-rail .learn-grid {
    column-gap: 30px;
  }
}
@media (max-width: 880px) {
  body.design-rail .case-workspace {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  body.design-rail .app-bar-inner {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }
  body.design-rail .app-controls {
    justify-content: flex-start;
  }
  body.design-rail .tool-grid {
    grid-template-columns: 1fr;
  }
  body.design-rail .fagan-layout {
    grid-template-columns: 1fr;
  }
  body.design-rail .resource-grid,
  body.design-rail .learn-grid {
    grid-template-columns: 1fr;
  }
  body.design-rail .about-points {
    grid-template-columns: 1fr;
    gap: 12px;
  }
}
@media (max-width: 620px) {
  body.design-rail {
    font-size: 14px;
  }
  body.design-rail .app-bar-inner {
    padding: 12px 14px;
  }
  body.design-rail .app-controls {
    flex-wrap: wrap;
  }
  body.design-rail .tabbar {
    padding: 0 14px;
    overflow-x: auto;
  }
  body.design-rail .tab {
    padding: 11px 12px 9px;
    white-space: nowrap;
  }
  body.design-rail .container {
    padding: 20px 14px 48px;
  }
  body.design-rail .grid-container {
    grid-template-columns: minmax(60px, 0.8fr) 1fr 1fr;
  }
  body.design-rail .grid-header,
  body.design-rail .grid-label {
    font-size: 11px;
    padding: 6px;
  }
  body.design-rail .grid-item input {
    min-height: 46px;
    font-size: 1rem;
  }
  body.design-rail .metric-ledger {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  body.design-rail .result-value {
    font-size: 1.05rem;
  }
  body.design-rail .rail-readout {
    gap: 7px;
    font-size: 11px;
  }
  body.design-rail .rail-readout-post {
    font-size: 1.55rem;
  }
  body.design-rail .rail-track {
    height: 140px;
  }
  body.design-rail .rail-axis {
    top: 68px;
  }
  body.design-rail .rail-tick {
    top: 72px;
    font-size: 8px;
  }
  body.design-rail .rail-marker {
    top: 60px;
  }
  body.design-rail .rail-marker--post {
    top: 54px;
  }
  body.design-rail .rail-marker--inactive {
    top: 64px;
  }
  body.design-rail .rail-marker--pre .rail-marker-label {
    top: -20px;
    font-size: 11px;
  }
  body.design-rail .rail-marker--post .rail-marker-label {
    top: 38px;
    font-size: 11px;
  }
  body.design-rail .rail-ci {
    top: 62px;
  }
  body.design-rail .rail-tick:nth-child(even) {
    display: none;
  }
  body.design-rail .threshold-demo-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  body.design-rail .threshold-demo-stat:nth-child(2n) {
    border-right: 0;
  }
  body.design-rail .threshold-readout,
  body.design-rail .prevalence-readout,
  body.design-rail .kappa-result {
    grid-template-columns: 1fr;
  }
  body.design-rail .threshold-stat,
  body.design-rail .prevalence-stat,
  body.design-rail .kappa-stat {
    border-right: 0;
  }
  body.design-rail .history-item {
    grid-template-columns: auto minmax(0, 1fr);
  }
  body.design-rail .history-item-actions {
    grid-column: 2;
  }
}

/* ── Print ─────────────────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  body.design-rail .rail-line line,
  body.design-rail .rail-marker--post {
    animation: none;
  }
}

@media print {
  html,
  html[data-theme="dark"] {
    --paper: #ffffff;
    --paper-2: #ffffff;
    --paper-3: #eeeeee;
    --ink: #000000;
    --ink-soft: #333333;
    --rule: #999999;
    --rule-strong: #000000;
    --red: #000000;
    --green: #000000;
    --ochre: #000000;
    --text: #000000;
    --text-strong: #000000;
    --text-muted: #333333;
    --border: #999999;
    --axis: #000000;
    --primary: #000000;
    --secondary: #000000;
    --success: #000000;
    --warning: #000000;
    --error: #000000;
    --accent-warm: #000000;
    --crew-pip: #000000;
  }
  body.design-rail {
    background: #fff;
    color: #000;
    font-size: 10pt;
  }
  body.design-rail .tabbar,
  body.design-rail .app-controls,
  body.design-rail .form-actions,
  body.design-rail .feedback,
  body.design-rail .bias-warnings,
  body.design-rail footer,
  body.design-rail .skip-link {
    display: none !important;
  }
  body.design-rail .app-bar {
    display: block !important;
    border-bottom: 1px solid #000;
  }
  body.design-rail .app-bar-inner {
    display: block;
    padding: 0 0 8px;
  }
  body.design-rail .app-case {
    border-left: 0;
    padding-left: 0;
  }
  body.design-rail .tab-panel[hidden] {
    display: none !important;
  }
  body.design-rail #tab-case {
    display: block !important;
  }
  body.design-rail #tab-explore,
  body.design-rail #tab-learn,
  body.design-rail #tab-history {
    display: none !important;
  }
  body.design-rail .container {
    max-width: none;
    padding: 0;
  }
  body.design-rail .case-workspace {
    display: block;
  }
  body.design-rail .case-sheet {
    display: block;
    border-top: 1px solid #000;
    margin-bottom: 18px;
  }
  body.design-rail #datasetSelect,
  body.design-rail label[for="datasetSelect"],
  body.design-rail #dataset-help,
  body.design-rail #inputForm > .form-row:first-of-type,
  body.design-rail .advanced-settings,
  body.design-rail .case-sheet .help-text {
    display: none !important;
  }
  body.design-rail .grid-container {
    border-color: #000;
    background: #999;
  }
  body.design-rail .grid-header,
  body.design-rail .grid-label {
    background: #fff;
    color: #000;
  }
  body.design-rail .grid-item,
  body.design-rail .grid-item input {
    background: #fff;
  }
  body.design-rail .grid-item input,
  body.design-rail .preTestProb {
    border: 0;
    color: #000;
    font-family: var(--font-mono);
  }
  body.design-rail #dataset-reference[style*="block"] {
    display: block !important;
  }
  body.design-rail .result-sheet {
    border-top: 2px solid #000;
  }
  body.design-rail .result-card,
  body.design-rail .metric-ledger .result-card {
    break-inside: avoid;
  }
  body.design-rail .rail-track {
    background-image: none;
  }
  body.design-rail .rail-line line,
  body.design-rail .rail-marker--post {
    animation: none !important;
  }
  body.design-rail .rail-line line {
    stroke: #000;
    stroke-dashoffset: 0;
  }
  body.design-rail .rail-marker--post,
  body.design-rail .rail-marker--post .rail-marker-label {
    color: #000;
    background: #000;
  }
  body.design-rail .rail-marker--post .rail-marker-label {
    background: transparent;
  }
  body.design-rail .rail-ci {
    border-color: #000;
    background: #eee;
  }
  body.design-rail .teaching-note {
    border-top: 1px solid #000;
  }
  body.design-rail .teaching-note p {
    color: #000;
  }
  body.design-rail a {
    color: #000;
    text-decoration: none;
  }
}