:root {
  color-scheme: light;
  --paper: #f5f3ed;
  --ink: #192222;
  --muted: #626967;
  --line: #cdcac0;
  --accent: #a64530;
  --petrol: #285b60;
  --wash: #e9ede8;
  --rose: #eee5dd;
  --panel: #faf9f5;
  --serif: "Songti SC", "STSong", "Noto Serif CJK SC", SimSun, serif;
  --sans:
    -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei",
    sans-serif;
  --body-size: 19px;
  --reading-line: 1.95;
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --paper: #232622;
  --ink: #e7e5dc;
  --muted: #b4b8ac;
  --line: #53594f;
  --accent: #e59d80;
  --petrol: #a3cdcb;
  --wash: #303d39;
  --rose: #3a302a;
  --panel: #292d27;
}
:root[data-font="0"] {
  --body-size: 17px;
}
:root[data-font="2"] {
  --body-size: 21px;
}
:root[data-relaxed="true"] {
  --reading-line: 2.3;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 110px;
}
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
}
button,
input,
textarea {
  font: inherit;
}
button {
  color: inherit;
  cursor: pointer;
}
button,
a,
input,
textarea,
summary {
  -webkit-tap-highlight-color: transparent;
}
button {
  background: none;
  border: 0;
}
a:hover,
button:hover {
  color: var(--accent);
}
button:disabled {
  opacity: 0.38;
  cursor: default;
}
button:disabled:hover {
  color: inherit;
}
:focus-visible {
  outline: 2px solid var(--petrol);
  outline-offset: 5px;
}
#main:focus {
  outline: none;
}
button:focus-visible {
  outline-offset: 3px;
}
::selection {
  background: var(--wash);
  color: var(--ink);
}
h1,
h2,
h3,
p {
  margin-top: 0;
}
h1,
h2,
h3 {
  font-family: var(--serif);
  letter-spacing: -0.035em;
}
h1 {
  font-size: clamp(38px, 4.4vw, 67px);
  line-height: 1.28;
  font-weight: 700;
  margin-bottom: 24px;
}
h2 {
  font-size: 29px;
  line-height: 1.5;
  margin-bottom: 16px;
}
h3 {
  font-size: 23px;
  line-height: 1.5;
  margin-bottom: 13px;
}
p {
  line-height: 1.85;
}
small {
  font-size: 12px;
}
.page-width {
  width: min(1320px, calc(100% - 96px));
  margin-inline: auto;
}
.eyebrow {
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.07em;
  color: var(--accent);
  line-height: 1.7;
  margin-bottom: 16px;
}
.muted,
.quiet-note {
  color: var(--muted);
}
.quiet-note {
  font-size: 12px;
  line-height: 1.85;
  margin-bottom: 0;
}
.mono {
  font-family: ui-monospace, SFMono-Regular, monospace;
  font-size: 12px;
  letter-spacing: 0.1em;
}
.accent {
  color: var(--accent);
}
.text-link {
  color: var(--petrol);
  font-size: 14px;
  border-bottom: 1px solid currentColor;
  padding-bottom: 5px;
  display: inline-flex;
  gap: 12px;
  align-items: center;
  line-height: 1.6;
}
.button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 25px;
  min-height: 48px;
  padding: 13px 22px;
  font-size: 14px;
  line-height: 1.5;
  border: 1px solid transparent;
  border-radius: 3px;
  font-weight: 500;
}
.primary {
  background: var(--accent);
  color: var(--paper);
}
.primary:hover {
  filter: brightness(0.93);
  color: var(--paper);
}
.secondary {
  border-color: var(--line);
  background: var(--panel);
}
.small {
  font-size: 12px;
  min-height: 39px;
  padding: 9px 13px;
  gap: 8px;
}
.icon-button {
  font-size: 24px;
  width: 40px;
  height: 40px;
  display: inline-grid;
  place-items: center;
}
.text-button {
  font-size: 12px;
  border-bottom: 1px solid var(--line);
  padding: 4px 0;
  text-align: left;
}
.danger {
  color: var(--accent);
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}
.skip-link {
  position: fixed;
  top: -100px;
  left: 20px;
  z-index: 100;
  background: var(--ink);
  color: var(--paper);
  padding: 15px;
}
.skip-link:focus {
  top: 10px;
}
.site-header {
  min-height: 91px;
  margin-inline: 32px;
  padding: 15px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 25px;
  border-bottom: 1px solid var(--ink);
}
.brand {
  display: flex;
  align-items: center;
  gap: 13px;
  white-space: nowrap;
}
.brand-mark {
  color: var(--accent);
  font: 48px/1 var(--serif);
  margin-top: -5px;
}
.brand-name {
  font: 700 25px/1.5 var(--serif);
  letter-spacing: -0.04em;
}
.brand-subtitle {
  font-size: 12px;
  color: var(--petrol);
  margin-left: 3px;
}
.main-nav {
  display: flex;
  align-self: stretch;
  align-items: stretch;
  gap: 24px;
}
.main-nav > a,
.main-nav > button {
  display: flex;
  gap: 8px;
  align-items: center;
  padding: 7px 3px;
  font-size: 14px;
  position: relative;
  white-space: nowrap;
}
.main-nav > a[aria-current]::after {
  content: "";
  height: 3px;
  background: var(--accent);
  position: absolute;
  bottom: -16px;
  left: 0;
  right: 0;
}
.main-nav small {
  color: var(--muted);
  font-size: 10px;
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 1px 4px;
}
.header-tools {
  display: flex;
  gap: 12px;
  align-items: center;
}
.header-tools > a {
  font-size: 12px;
  color: var(--petrol);
  white-space: nowrap;
}
.hero {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 60px;
  align-items: center;
  padding-top: 64px;
  padding-bottom: 60px;
}
.hero-copy .eyebrow {
  font-size: 13px;
  margin-bottom: 20px;
}
.hero h1 {
  font-size: clamp(40px, 4.15vw, 64px);
  line-height: 1.35;
  letter-spacing: -0.065em;
  margin-bottom: 22px;
}
.hero h1 .accent {
  color: var(--ink);
}
.hero-description {
  font-size: 19px;
  color: var(--muted);
  line-height: 1.8;
  margin-bottom: 30px;
}
.hero-actions {
  display: flex;
  align-items: center;
  gap: 30px;
  margin-bottom: 20px;
}
.hero-context {
  background: var(--rose);
  padding: 33px 32px 24px;
}
.bracket-card {
  position: relative;
  border-radius: 3px;
}
.bracket-card:before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 11px;
  height: 44px;
  border-top: 3px solid var(--accent);
  border-left: 3px solid var(--accent);
  border-bottom: 3px solid var(--accent);
}
.hero-context:after {
  content: "";
  position: absolute;
  bottom: 0;
  right: 0;
  width: 11px;
  height: 44px;
  border-top: 3px solid var(--accent);
  border-right: 3px solid var(--accent);
  border-bottom: 3px solid var(--accent);
}
.hero-context h2 {
  font-size: 30px;
  margin-bottom: 20px;
  line-height: 1.5;
}
.context-steps {
  list-style: none;
  padding: 0;
  margin: 0;
}
.context-steps li {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  padding: 15px 0;
  border-top: 1px solid var(--line);
}
.context-steps li > span {
  font-family: var(--serif);
  color: var(--accent);
  font-size: 20px;
}
.context-steps strong {
  font-size: 14px;
}
.context-steps p {
  margin: 5px 0 0;
  font-size: 12px;
  color: var(--muted);
}
.context-caption {
  font-size: 11px;
  margin: 10px 0 0;
  color: var(--muted);
}
.section-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 25px;
  margin-bottom: 25px;
}
.section-heading .eyebrow {
  margin-bottom: 6px;
}
.section-heading h2 {
  margin: 0;
  font-size: 34px;
}
.section-heading > p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}
.starting-section {
  border-top: 1px solid var(--ink);
  padding-top: 25px;
  padding-bottom: 40px;
}
.home-topics {
  display: grid;
  grid-template-columns: 0.95fr 1.6fr;
  gap: 36px;
}
.question-card {
  display: flex;
  flex-direction: column;
  background: var(--panel);
  padding: 27px;
  border: 1px solid var(--line);
  border-radius: 3px;
  transition:
    border-color 0.15s,
    transform 0.15s;
}
.question-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}
.card-top {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 15px;
  margin-bottom: 18px;
}
.card-top .eyebrow {
  margin: 0;
}
.question-card h3 {
  font-size: 26px;
}
.question-card > p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.9;
  margin-bottom: 25px;
}
.card-bottom {
  border-top: 1px solid var(--line);
  padding-top: 15px;
  margin-top: auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  justify-content: space-between;
}
.card-bottom > span {
  font-size: 11px;
  color: var(--muted);
}
.card-bottom .text-link {
  font-size: 13px;
}
.home-topics > .question-card {
  background: var(--wash);
  border-color: transparent;
  padding: 32px;
}
.home-topics > .question-card h3 {
  font-size: 31px;
  margin-bottom: 23px;
}
.topic-list {
  display: flex;
  flex-direction: column;
}
.topic-row {
  display: flex;
  align-items: center;
  gap: 23px;
  padding: 19px 0;
  border-bottom: 1px solid var(--line);
}
.topic-row:first-child {
  padding-top: 3px;
}
.topic-number {
  font: 26px var(--serif);
  color: var(--accent);
}
.topic-row .eyebrow {
  font-size: 10px;
  margin-bottom: 4px;
}
.topic-row h3 {
  font-size: 21px;
  margin: 0 0 7px;
}
.topic-row p {
  font-size: 12px;
  color: var(--muted);
  margin: 0;
}
.topic-arrow {
  font-size: 24px;
  color: var(--petrol);
  margin-left: auto;
}
.learning-note {
  display: flex;
  align-items: center;
  gap: 25px;
  padding: 30px 25px;
  background: var(--rose);
  margin-bottom: 40px;
}
.large-bracket {
  font: 70px/0.8 var(--serif);
  color: var(--accent);
  align-self: flex-start;
}
.learning-note h2 {
  font-size: 25px;
  margin: 0 0 7px;
}
.learning-note p {
  font-size: 13px;
  margin: 0;
  color: var(--muted);
}
.learning-note > a {
  margin-left: auto;
  white-space: nowrap;
}
.phase-strip {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  border-top: 1px solid var(--line);
  padding-top: 22px;
  padding-bottom: 35px;
  gap: 20px;
}
.phase-strip > div {
  display: flex;
  flex-direction: column;
  gap: 7px;
  align-items: flex-start;
  font-size: 12px;
}
.phase-strip span {
  color: var(--muted);
  font-size: 10px;
}
.phase-strip .phase-current {
  color: var(--accent);
}
.phase-strip button {
  padding: 0;
  text-align: left;
}
.site-footer {
  margin: 0 32px;
  border-top: 1px solid var(--ink);
  padding: 22px 16px 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  color: var(--muted);
  font-size: 10px;
  line-height: 1.8;
}
.footer-brand {
  color: var(--ink);
  font-size: 11px;
}
.page-intro {
  padding: 53px 0 28px;
}
.page-intro h1 {
  font-size: clamp(40px, 4.5vw, 64px);
  margin-bottom: 17px;
}
.page-intro > p:last-child {
  color: var(--muted);
  font-size: 17px;
}
.map-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 295px;
  gap: 50px;
  padding-bottom: 70px;
}
.search-box {
  display: flex;
  align-items: center;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: 3px;
  background: var(--panel);
  padding: 8px 16px;
  min-height: 58px;
}
.search-symbol {
  font-size: 30px;
  color: var(--petrol);
  line-height: 1;
}
.search-box input {
  width: 100%;
  min-width: 0;
  border: 0;
  background: transparent;
  color: var(--ink);
  padding: 9px 0;
  font-size: 14px;
  outline-offset: 0;
}
.search-box kbd {
  font-family: var(--sans);
  font-size: 10px;
  color: var(--muted);
  white-space: nowrap;
}
.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  padding: 20px 0 5px;
}
.filter-row button {
  padding: 8px 13px;
  border: 1px solid transparent;
  border-radius: 2px;
  font-size: 12px;
  min-height: 38px;
}
.filter-row button[aria-pressed="true"] {
  background: var(--ink);
  color: var(--paper);
}
.filter-row button[aria-pressed="false"] {
  border-color: var(--line);
}
.result-count {
  font-size: 11px;
  color: var(--muted);
  margin: 12px 0 17px;
}
.question-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.question-grid .question-card h3 {
  font-size: 23px;
}
.question-grid .card-bottom {
  align-items: start;
}
.question-grid .card-bottom .text-link {
  margin-left: auto;
}
.map-aside {
  padding: 29px 25px;
  background: var(--wash);
  align-self: start;
  margin-top: 0;
}
.map-aside h2 {
  font-size: 26px;
}
.route-list {
  list-style: none;
  padding: 0;
  margin: 20px 0;
}
.route-list li {
  display: flex;
  gap: 14px;
  padding: 17px 0;
  border-top: 1px solid var(--line);
}
.route-list li > span {
  width: 23px;
  height: 23px;
  flex-shrink: 0;
  background: var(--petrol);
  color: var(--paper);
  border-radius: 50%;
  display: grid;
  place-items: center;
  font: 14px var(--serif);
}
.route-list strong {
  font-size: 14px;
}
.route-list p {
  font-size: 12px;
  color: var(--muted);
  margin: 7px 0 0;
}
.map-aside > .text-link {
  margin-top: 20px;
}
.empty-state {
  grid-column: 1/-1;
  padding: 50px 20px;
  text-align: center;
  border: 1px dashed var(--line);
  min-height: 230px;
}
.empty-state h1 {
  font-size: 36px;
}
.empty-state h2 {
  font-size: 26px;
}
.empty-state .text-link {
  margin: 20px;
}
.reading-progress {
  position: sticky;
  top: 0;
  height: 3px;
  background: var(--line);
  z-index: 8;
}
.reading-progress > span {
  display: block;
  height: 100%;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
}
.reading-topline {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 28px 0 36px;
  color: var(--muted);
  font-size: 12px;
}
.reading-topline > a {
  font-size: 12px;
  border-bottom: 0;
}
.reader-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 310px;
  gap: 70px;
  align-items: start;
}
.reading-article {
  min-width: 0;
}
.reading-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 15px;
  margin: 0 0 25px;
}
.reading-toolbar > .eyebrow {
  font-size: 10px;
  margin: 0;
}
.reader-controls {
  display: flex;
  align-items: center;
  gap: 4px;
}
.reader-controls button {
  font-size: 11px;
  border: 1px solid var(--line);
  padding: 7px 8px;
  min-height: 33px;
  border-radius: 2px;
  white-space: nowrap;
}
.reader-controls button[aria-pressed="true"] {
  background: var(--wash);
  border-color: var(--petrol);
}
.reading-article h1 {
  font-size: clamp(36px, 3.5vw, 52px);
  line-height: 1.45;
  margin-bottom: 20px;
}
.article-subtitle {
  font-size: 20px;
  line-height: 1.85;
  color: var(--muted);
  padding-bottom: 33px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 32px;
}
.article-intro {
  font: var(--body-size)/var(--reading-line) var(--serif);
  margin-bottom: 36px;
}
.prose-section {
  position: relative;
  padding-top: 12px;
  margin-bottom: 30px;
  scroll-margin-top: 35px;
}
.section-index {
  font-family: ui-monospace, monospace;
  font-size: 11px;
  color: var(--accent);
  display: block;
  margin-bottom: 8px;
}
.prose-section h2 {
  font-size: 29px;
  margin-bottom: 17px;
}
.prose-section p,
.scenario-section > p,
.takeaway-section > p:not(.eyebrow):not(.quiet-note) {
  font: var(--body-size)/var(--reading-line) var(--serif);
  margin-bottom: 20px;
}
.scenario-section {
  border-top: 1px solid var(--ink);
  padding: 30px 0;
  margin: 35px 0 0;
  scroll-margin-top: 30px;
}
.scenario-section .section-heading h2 {
  font-size: 27px;
}
.scenario-label {
  font-size: 10px;
  white-space: nowrap;
  color: var(--petrol);
  background: var(--wash);
  padding: 5px 8px;
  border-radius: 2px;
}
.scenario-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin: 25px 0 16px;
}
.scenario-option {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 3px;
  text-align: left;
  padding: 20px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 11px;
}
.scenario-option > span:first-child {
  font-size: 11px;
  color: var(--muted);
}
.scenario-option strong {
  font: 22px/1.6 var(--serif);
}
.scenario-option > span:last-child {
  align-self: flex-end;
  color: var(--petrol);
  font-size: 20px;
}
.scenario-option[aria-pressed="true"] {
  border-color: var(--petrol);
  background: var(--wash);
}
.choice-feedback {
  padding: 22px;
  background: var(--wash);
  border-left: 2px solid var(--petrol);
  min-height: 90px;
}
.choice-feedback > p {
  font-size: 15px;
  margin: 8px 0;
  line-height: 1.95;
}
.choice-feedback > .eyebrow {
  color: var(--petrol);
}
.choice-feedback > small {
  font-size: 11px;
  color: var(--muted);
}
.counterexample {
  border-bottom: 1px solid var(--line);
  padding: 20px 0;
}
.counterexample summary {
  font-size: 14px;
  cursor: pointer;
  line-height: 1.8;
  color: var(--petrol);
}
.counterexample p {
  font-size: 14px;
  line-height: 1.95;
  color: var(--muted);
  margin: 15px 0 0;
}
.takeaway-section {
  background: var(--rose);
  padding: 26px 30px;
  margin-bottom: 35px;
  scroll-margin-top: 30px;
}
.takeaway-section h2 {
  font-size: 28px;
}
.takeaway-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 20px 0 15px;
}
.source-section {
  padding: 20px 0 30px;
  scroll-margin-top: 30px;
}
.source-section h2 {
  font-size: 27px;
}
.source-section > p {
  font-size: 13px;
  color: var(--muted);
}
.sources-list {
  list-style: none;
  padding: 0;
  margin: 20px 0;
}
.sources-list li {
  border-top: 1px solid var(--line);
  padding: 17px 0;
}
.sources-list a {
  font-size: 13px;
  color: var(--petrol);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.sources-list span {
  display: block;
  margin-top: 6px;
  font-size: 10px;
  color: var(--muted);
}
.sources-list p {
  font-size: 12px;
  color: var(--muted);
  margin: 7px 0 0;
}
.next-reading {
  display: grid;
  grid-template-columns: 1fr auto;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--line);
  padding: 25px 0;
  gap: 10px 20px;
  margin-bottom: 50px;
}
.next-reading > span:first-child {
  grid-column: 1;
  font-size: 11px;
  color: var(--muted);
}
.next-reading > strong {
  font: 25px/1.6 var(--serif);
}
.next-reading > span:last-child {
  grid-column: 2;
  grid-row: 1/3;
  align-self: center;
  font-size: 30px;
  color: var(--accent);
}
.reader-aside {
  align-self: stretch;
}
.aside-inner {
  position: sticky;
  top: 30px;
}
.toc {
  margin-bottom: 28px;
}
.toc > .eyebrow {
  font-size: 10px;
}
.toc button {
  display: flex;
  align-items: start;
  gap: 12px;
  font-size: 12px;
  text-align: left;
  width: 100%;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  line-height: 1.7;
}
.toc button > span {
  font-size: 11px;
  color: var(--accent);
  white-space: nowrap;
}
.note-card {
  background: var(--wash);
  padding: 25px 23px;
  margin-bottom: 24px;
}
.note-card > .eyebrow {
  color: var(--petrol);
  font-size: 10px;
  margin-bottom: 8px;
}
.note-card h2 {
  font-size: 28px;
  margin-bottom: 15px;
}
label {
  line-height: 1.85;
}
.note-card label,
.wish-card label {
  font-size: 13px;
  color: var(--muted);
  display: block;
  margin-bottom: 12px;
}
textarea {
  display: block;
  resize: vertical;
  width: 100%;
  min-height: 130px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 13px;
  color: var(--ink);
  line-height: 1.9;
  font-size: 13px;
}
textarea::placeholder,
input::placeholder {
  color: var(--muted);
  opacity: 0.85;
}
.note-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 13px;
}
.note-card .quiet-note {
  margin-top: 12px;
  font-size: 10px;
}
.reading-hint {
  border-top: 1px solid var(--line);
  padding-top: 20px;
}
.reading-hint > .eyebrow {
  font-size: 11px;
}
.reading-hint > p:not(.eyebrow) {
  font-size: 12px;
  color: var(--muted);
}
.reading-hint .text-link {
  font-size: 12px;
}
.focus-mode .reader-aside {
  display: none;
}
.focus-mode .reader-layout {
  grid-template-columns: minmax(0, 780px);
  justify-content: center;
}
.focus-mode .reading-article {
  max-width: 780px;
}
.notebook-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: 60px;
  margin-bottom: 60px;
}
.notebook-layout .section-heading h2 {
  font-size: 27px;
}
.notebook-layout .section-heading > span {
  font-size: 11px;
  color: var(--muted);
}
.notebook-entry {
  border-top: 1px solid var(--line);
  padding: 24px 0;
  display: flex;
  gap: 25px;
  align-items: start;
  justify-content: space-between;
}
.notebook-entry > .text-link {
  white-space: nowrap;
  font-size: 12px;
}
.notebook-entry h3 {
  font-size: 23px;
}
.notebook-entry .eyebrow {
  font-size: 10px;
  margin-bottom: 8px;
}
.notebook-entry p {
  font-size: 13px;
}
.saved-note {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  border-left: 2px solid var(--petrol);
  padding-left: 16px;
  color: var(--muted);
  max-height: 320px;
  overflow: auto;
}
.wish-card {
  background: var(--rose);
  padding: 27px;
}
.wish-card h2 {
  font-size: 29px;
}
.wish-card > .button {
  width: 100%;
  margin-top: 15px;
  font-size: 13px;
}
.data-controls {
  padding-top: 24px;
}
.data-controls h3 {
  font-size: 22px;
}
.data-controls p {
  font-size: 12px;
  color: var(--muted);
}
.data-controls .button {
  display: flex;
  width: 100%;
  font-size: 13px;
  margin-bottom: 20px;
}
.about-page {
  max-width: 950px;
  padding-top: 60px;
  padding-bottom: 60px;
}
.about-page h1 {
  font-size: 52px;
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px 45px;
  margin-top: 35px;
}
.about-grid > section {
  border-top: 1px solid var(--line);
  padding-top: 20px;
}
.about-grid h2 {
  font-size: 24px;
}
.about-grid p {
  font-size: 14px;
  color: var(--muted);
}
.about-sources {
  margin-top: 35px;
  border-top: 1px solid var(--ink);
  padding-top: 25px;
}
.read-badge {
  font-size: 10px !important;
  color: var(--petrol) !important;
}
dialog {
  max-width: min(500px, calc(100% - 36px));
  border: 1px solid var(--line);
  border-radius: 3px;
  background: var(--paper);
  color: var(--ink);
  padding: 28px 32px;
  box-shadow: 0 20px 100px #0003;
}
dialog::backdrop {
  background: #14232366;
  backdrop-filter: blur(2px);
}
.dialog-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 15px;
}
.dialog-heading .eyebrow {
  margin: 0;
}
dialog h2 {
  font-size: 30px;
  margin-top: 18px;
}
dialog > p {
  font-size: 14px;
}
dialog > .button {
  margin-top: 15px;
}
.toast {
  position: fixed;
  bottom: 25px;
  left: 50%;
  transform: translate(-50%, 20px);
  background: var(--ink);
  color: var(--paper);
  padding: 14px 22px;
  max-width: min(620px, calc(100% - 32px));
  border-radius: 3px;
  font-size: 12px;
  line-height: 1.8;
  z-index: 50;
  opacity: 0;
  pointer-events: none;
  transition:
    opacity 0.2s,
    transform 0.2s;
}
.toast.visible {
  opacity: 1;
  transform: translate(-50%, 0);
}
.noscript {
  padding: 25px;
}
.audience-note {
  padding-block: 10px 30px;
  color: var(--muted);
}
.audience-note p:first-child {
  color: var(--ink);
  font-size: 17px;
  margin-bottom: 6px;
}
.audience-note p:last-child {
  font-size: 13px;
}
.research-shelf {
  padding-block: 30px 55px;
  border-top: 1px solid var(--line);
}
.research-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 25px;
}
.research-preview {
  border-top: 2px solid var(--petrol);
  background: var(--wash);
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: start;
}
.research-preview h3 {
  font-size: 24px;
}
.research-preview > p:not(.eyebrow) {
  font-size: 14px;
}
.research-preview > .text-link {
  margin-top: auto;
  padding-top: 15px;
}
.research-reading {
  padding-block: 32px;
  border-top: 1px solid var(--line);
}
.research-meta {
  font-size: 12px;
  color: var(--muted);
}
.research-card {
  padding: 28px;
  background: var(--wash);
  border-left: 3px solid var(--petrol);
  min-width: 0;
}
.research-facts {
  margin: 22px 0;
}
.research-facts > div {
  padding-block: 12px;
  border-top: 1px solid var(--line);
}
.research-facts dt {
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 6px;
}
.research-facts dd {
  margin-left: 0;
  font-size: var(--body-size);
  line-height: var(--reading-line);
}
.editor-interpretation dt {
  color: var(--petrol);
}
.research-prompt {
  font-size: 16px;
  color: var(--petrol);
}
.research-bibliography {
  border-top: 1px solid var(--line);
  padding-top: 12px;
  font-size: 13px;
  overflow-wrap: anywhere;
}
.research-bibliography summary {
  cursor: pointer;
  min-height: 44px;
  padding-block: 12px;
}
.paper-title {
  font-weight: 600;
}
.research-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  color: var(--petrol);
}
.research-links a {
  min-height: 44px;
  padding-block: 12px;
}
.about-research {
  margin-block: 30px;
  border-top: 1px solid var(--line);
  padding-top: 25px;
}
@media (max-width: 760px) {
  .research-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }
  .research-card {
    padding: 20px 18px;
  }
  body .search-box input[type="search"],
  body .note-card textarea,
  body .wish-card textarea {
    font-size: 16px;
    scroll-margin-block: 32px;
  }
  .reader-controls button,
  .filter-row button,
  .icon-button {
    min-width: 44px;
    min-height: 44px;
  }
  .note-actions .button,
  .takeaway-actions .button {
    min-height: 44px;
  }
  .toast {
    bottom: max(16px, env(safe-area-inset-bottom));
  }
}
@media (min-width: 1500px) {
  .hero {
    padding-top: 80px;
    padding-bottom: 75px;
  }
  .hero h1 {
    font-size: 67px;
  }
  .hero-context {
    padding: 35px 36px 28px;
  }
}
@media (max-width: 1200px) {
  .site-header {
    gap: 15px;
    margin-inline: 20px;
    padding-inline: 6px;
  }
  .brand-subtitle {
    display: none;
  }
  .brand-name {
    font-size: 23px;
  }
  .main-nav {
    gap: 14px;
  }
  .main-nav > a,
  .main-nav > button {
    font-size: 12px;
    gap: 5px;
  }
  .header-tools {
    gap: 4px;
  }
  .page-width {
    width: calc(100% - 64px);
  }
  .hero {
    gap: 35px;
  }
  .hero h1 {
    font-size: 48px;
  }
  .hero-context h2 {
    font-size: 27px;
  }
  .hero-description {
    font-size: 17px;
  }
  .reader-layout {
    gap: 40px;
    grid-template-columns: minmax(0, 1fr) 290px;
  }
  .reading-toolbar {
    align-items: flex-start;
    flex-direction: column;
    gap: 13px;
  }
  .map-layout {
    gap: 30px;
    grid-template-columns: minmax(0, 1fr) 270px;
  }
  .question-card {
    padding: 22px;
  }
  .question-grid .question-card h3 {
    font-size: 21px;
  }
  .notebook-layout {
    gap: 35px;
    grid-template-columns: minmax(0, 1fr) 300px;
  }
}
@media (max-width: 900px) {
  .site-header {
    flex-wrap: wrap;
    padding-bottom: 0;
    gap: 10px 20px;
  }
  .brand {
    order: 0;
  }
  .header-tools {
    order: 1;
    margin-left: auto;
  }
  .main-nav {
    order: 2;
    flex-basis: 100%;
    justify-content: space-between;
    gap: 12px;
    padding-top: 6px;
  }
  .main-nav > a,
  .main-nav > button {
    min-height: 44px;
    padding-bottom: 12px;
  }
  .main-nav > a[aria-current]::after {
    bottom: 0;
  }
  .main-nav span {
    font-size: 12px;
  }
  .hero {
    grid-template-columns: 1fr 1fr;
    gap: 25px;
    padding-top: 40px;
    padding-bottom: 40px;
  }
  .hero h1 {
    font-size: 38px;
  }
  .hero-description {
    font-size: 15px;
  }
  .hero-actions {
    flex-wrap: wrap;
    gap: 18px;
  }
  .hero-context {
    padding: 25px 23px;
  }
  .hero-context h2 {
    font-size: 25px;
  }
  .hero-context > .eyebrow {
    font-size: 10px;
  }
  .context-steps li {
    gap: 12px;
    padding: 12px 0;
  }
  .home-topics {
    gap: 25px;
    grid-template-columns: 1fr 1.1fr;
  }
  .home-topics > .question-card {
    padding: 24px;
  }
  .home-topics > .question-card h3 {
    font-size: 26px;
  }
  .topic-row {
    gap: 15px;
  }
  .topic-row h3 {
    font-size: 19px;
  }
  .section-heading h2 {
    font-size: 29px;
  }
  .learning-note {
    padding: 25px 20px;
    gap: 18px;
    flex-wrap: wrap;
  }
  .learning-note > a {
    margin-left: 45px;
  }
  .map-layout {
    grid-template-columns: 1fr;
  }
  .map-aside {
    display: none;
  }
  .reader-layout {
    grid-template-columns: minmax(0, 1fr) 250px;
    gap: 30px;
  }
  .reading-article h1 {
    font-size: 36px;
  }
  .reading-toolbar {
    margin-bottom: 20px;
  }
  .reader-controls {
    flex-wrap: wrap;
  }
  .reader-controls button {
    font-size: 10px;
    padding: 7px 6px;
  }
  .note-card {
    padding: 23px 18px;
  }
  .note-actions {
    flex-direction: column;
  }
  .notebook-layout {
    grid-template-columns: 1fr;
    gap: 25px;
  }
  .notebook-layout > aside {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }
  .notebook-layout .data-controls {
    padding-top: 0;
  }
  .site-footer {
    flex-wrap: wrap;
    margin-inline: 20px;
    padding-inline: 10px;
  }
}
@media (max-width: 700px) {
  html {
    scroll-padding-top: 24px;
  }
  .page-width {
    width: calc(100% - 36px);
  }
  .site-header {
    margin-inline: 18px;
    padding-inline: 0;
    padding-top: 13px;
  }
  .brand {
    gap: 8px;
  }
  .brand-mark {
    font-size: 38px;
  }
  .brand-name {
    font-size: 22px;
  }
  .header-tools > a {
    font-size: 10px;
  }
  .icon-button {
    font-size: 22px;
    width: 34px;
    height: 34px;
  }
  .main-nav {
    gap: 8px;
  }
  .main-nav > a,
  .main-nav > button {
    font-size: 13px;
    gap: 5px;
    min-height: 46px;
  }
  .main-nav span {
    font-size: 11px;
  }
  .main-nav small {
    display: none;
  }
  .hero {
    grid-template-columns: 1fr;
    padding-top: 35px;
    padding-bottom: 32px;
    gap: 32px;
  }
  .hero h1 {
    font-size: clamp(35px, 8.5vw, 53px);
    line-height: 1.4;
    letter-spacing: -0.06em;
    margin-bottom: 19px;
  }
  .hero-copy .eyebrow {
    font-size: 11px;
    margin-bottom: 17px;
  }
  .hero-description {
    font-size: 16px;
    margin-bottom: 23px;
  }
  .hero-actions {
    gap: 22px;
    margin-bottom: 17px;
  }
  .hero-actions .button {
    padding: 12px 17px;
    font-size: 13px;
    min-height: 46px;
    gap: 15px;
  }
  .hero-actions .text-link {
    font-size: 12px;
  }
  .hero .quiet-note {
    font-size: 10px;
  }
  .hero-context {
    padding: 27px 25px 22px;
  }
  .hero-context h2 {
    font-size: 27px;
  }
  .hero-context h2 br {
    display: none;
  }
  .context-steps li {
    padding: 13px 0;
  }
  .context-steps strong {
    font-size: 14px;
  }
  .context-steps p {
    font-size: 12px;
  }
  .context-caption {
    font-size: 10px;
  }
  .starting-section {
    padding-top: 22px;
    padding-bottom: 28px;
  }
  .section-heading {
    align-items: flex-start;
    gap: 12px;
    flex-direction: column;
    margin-bottom: 20px;
  }
  .section-heading h2 {
    font-size: 29px;
  }
  .section-heading > p {
    font-size: 12px;
  }
  .section-heading > p br {
    display: none;
  }
  .home-topics {
    grid-template-columns: 1fr;
    gap: 25px;
  }
  .home-topics > .question-card {
    padding: 25px;
  }
  .home-topics > .question-card h3 {
    font-size: 28px;
  }
  .topic-row {
    padding: 20px 0;
    gap: 17px;
  }
  .topic-row h3 {
    font-size: 21px;
  }
  .topic-row .eyebrow {
    font-size: 10px;
  }
  .topic-row p {
    font-size: 11px;
  }
  .topic-number {
    font-size: 25px;
  }
  .learning-note {
    gap: 15px;
    margin-bottom: 28px;
    align-items: flex-start;
  }
  .learning-note > div {
    width: calc(100% - 45px);
  }
  .learning-note h2 {
    font-size: 23px;
  }
  .learning-note p {
    font-size: 12px;
  }
  .learning-note > a {
    margin-left: 35px;
    font-size: 12px;
  }
  .large-bracket {
    font-size: 54px;
  }
  .phase-strip {
    grid-template-columns: 1fr;
    gap: 18px;
    padding-bottom: 28px;
  }
  .phase-strip > div {
    flex-direction: row;
    align-items: center;
    gap: 15px;
    font-size: 11px;
  }
  .phase-strip span {
    min-width: 60px;
    font-size: 10px;
  }
  .site-footer {
    margin-inline: 18px;
    padding: 20px 0 25px;
    align-items: flex-start;
    gap: 10px;
    flex-direction: column;
    font-size: 9px;
  }
  .footer-brand {
    font-size: 10px;
  }
  .page-intro {
    padding-top: 35px;
    padding-bottom: 20px;
  }
  .page-intro h1 {
    font-size: 38px;
    line-height: 1.4;
  }
  .page-intro > p:last-child {
    font-size: 14px;
  }
  .page-intro > p:last-child br {
    display: none;
  }
  .map-layout {
    gap: 20px;
    padding-bottom: 35px;
  }
  .search-box {
    padding-inline: 12px;
    gap: 9px;
    min-height: 52px;
  }
  .search-box input {
    font-size: 12px;
  }
  .search-box kbd {
    display: none;
  }
  .filter-row {
    gap: 7px;
    padding-top: 17px;
  }
  .filter-row button {
    padding: 7px 10px;
    font-size: 11px;
    min-height: 36px;
  }
  .question-grid {
    grid-template-columns: 1fr;
    gap: 15px;
  }
  .question-card {
    padding: 23px;
  }
  .question-grid .question-card h3 {
    font-size: 25px;
  }
  .question-card > p {
    font-size: 13px;
  }
  .card-bottom > span {
    font-size: 10px;
  }
  .result-count {
    font-size: 10px;
    line-height: 1.8;
  }
  .reading-topline {
    padding: 22px 0 28px;
    font-size: 10px;
    gap: 10px;
  }
  .reading-topline > a {
    font-size: 10px;
  }
  .reading-topline > .mono {
    font-size: 9px;
  }
  .reader-layout {
    grid-template-columns: 1fr;
    gap: 15px;
  }
  .reading-toolbar {
    gap: 13px;
    margin-bottom: 24px;
  }
  .reading-toolbar > .eyebrow {
    font-size: 10px;
  }
  .reader-controls button {
    min-height: 36px;
    padding: 8px 10px;
    font-size: 11px;
  }
  .reading-article h1 {
    font-size: 36px;
    line-height: 1.5;
    letter-spacing: -0.04em;
  }
  .article-subtitle {
    font-size: 17px;
    padding-bottom: 25px;
    margin-bottom: 25px;
  }
  .article-intro {
    margin-bottom: 28px;
  }
  .prose-section h2 {
    font-size: 26px;
  }
  .prose-section {
    margin-bottom: 25px;
  }
  .prose-section p,
  .article-intro,
  .scenario-section > p,
  .takeaway-section > p:not(.eyebrow):not(.quiet-note) {
    font-size: calc(var(--body-size) - 1px);
  }
  .scenario-section {
    padding-top: 25px;
  }
  .scenario-section .section-heading {
    gap: 13px;
  }
  .scenario-section .section-heading h2 {
    font-size: 26px;
  }
  .scenario-options {
    grid-template-columns: 1fr;
    gap: 11px;
  }
  .scenario-option {
    padding: 18px;
    gap: 8px;
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
  }
  .scenario-option > span:first-child {
    grid-column: 1/3;
  }
  .scenario-option strong {
    font-size: 21px;
  }
  .scenario-option > span:last-child {
    grid-column: 2;
  }
  .choice-feedback {
    padding: 18px;
  }
  .choice-feedback > p {
    font-size: 14px;
  }
  .counterexample summary {
    font-size: 13px;
  }
  .takeaway-section {
    padding: 23px 21px;
  }
  .takeaway-section h2 {
    font-size: 25px;
  }
  .takeaway-actions {
    gap: 10px;
  }
  .takeaway-actions .button {
    font-size: 12px;
    padding: 11px 13px;
    gap: 10px;
  }
  .source-section h2 {
    font-size: 25px;
  }
  .source-section > p {
    font-size: 12px;
  }
  .sources-list a {
    font-size: 12px;
    overflow-wrap: anywhere;
  }
  .sources-list span {
    font-size: 9px;
  }
  .sources-list p {
    font-size: 11px;
  }
  .next-reading {
    margin-bottom: 20px;
  }
  .next-reading > strong {
    font-size: 24px;
  }
  .reader-aside {
    margin-bottom: 35px;
  }
  .aside-inner {
    position: static;
    display: flex;
    flex-direction: column;
  }
  .toc {
    display: none;
  }
  .note-card {
    padding: 27px 24px;
  }
  .note-card label {
    font-size: 13px;
  }
  .note-actions {
    flex-direction: row;
  }
  .note-card .quiet-note {
    font-size: 11px;
  }
  .note-card textarea {
    font-size: 14px;
    min-height: 145px;
  }
  .reading-hint > p:not(.eyebrow) {
    font-size: 12px;
  }
  .focus-mode .reader-layout {
    grid-template-columns: 1fr;
  }
  .notebook-layout .section-heading {
    gap: 7px;
  }
  .notebook-layout .section-heading h2 {
    font-size: 27px;
  }
  .notebook-layout .section-heading > span {
    font-size: 10px;
  }
  .notebook-layout > aside {
    grid-template-columns: 1fr;
    gap: 25px;
  }
  .notebook-entry {
    gap: 15px;
    flex-direction: column;
  }
  .notebook-entry h3 {
    font-size: 24px;
  }
  .wish-card {
    padding: 26px;
  }
  .wish-card label {
    font-size: 13px;
  }
  .about-page {
    padding-top: 35px;
    padding-bottom: 30px;
  }
  .about-page h1 {
    font-size: 39px;
  }
  .about-grid {
    grid-template-columns: 1fr;
    gap: 22px;
  }
  .about-grid h2 {
    font-size: 25px;
  }
  dialog {
    padding: 24px;
  }
  dialog h2 {
    font-size: 27px;
  }
  .toast {
    bottom: 16px;
    font-size: 11px;
    padding: 12px 16px;
  }
  .empty-state {
    padding: 35px 16px;
  }
  .empty-state h2 {
    font-size: 24px;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *:before,
  *:after {
    transition: none !important;
    animation: none !important;
  }
}

/* Primary navigation: one large action, one quiet explanation. */
.site-header {
  min-height: 126px;
}
.main-nav {
  gap: 42px;
  align-self: center;
  align-items: center;
}
.main-nav > a,
.main-nav > button {
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 4px 12px 15px;
  min-width: 92px;
}
.main-nav .nav-title {
  font: 700 35px/1.2 var(--serif);
  color: var(--ink);
  letter-spacing: 0.02em;
}
.main-nav .nav-caption {
  font: 11px/1.6 var(--sans);
  color: var(--muted);
  letter-spacing: 0.01em;
}
.main-nav > a[aria-current]::after {
  bottom: 0;
  left: 12px;
  right: 12px;
  height: 2px;
}
.main-nav > a[aria-current] .nav-caption {
  color: var(--petrol);
}
.main-nav > button .nav-title {
  color: var(--muted);
}
.main-nav > button:hover .nav-title,
.main-nav > a:hover .nav-title {
  color: var(--accent);
}
.learning-paths {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 26px;
}
.path-card {
  padding: 27px;
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 3px;
}
.path-card:first-child {
  background: var(--wash);
  border-color: transparent;
}
.path-number {
  display: block;
  color: var(--accent);
  font: 32px/1.3 var(--serif);
  margin-bottom: 20px;
}
.path-card h3 {
  font-size: 25px;
  line-height: 1.6;
  margin-bottom: 15px;
}
.path-card > p {
  color: var(--muted);
  font-size: 13px;
  min-height: 75px;
}
.path-links {
  border-top: 1px solid var(--line);
  margin-top: 20px;
}
.path-links a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 17px 0;
  font-size: 13px;
  line-height: 1.85;
}
.path-links a + a {
  border-top: 1px solid var(--line);
}
.path-links a > span:last-child {
  color: var(--petrol);
  font-size: 20px;
}
.workcard-section {
  border: 1px solid var(--line);
  padding: 28px;
  margin: 6px 0 35px;
  background: var(--panel);
}
.workcard-section .section-heading {
  align-items: center;
}
.workcard-section .section-heading h2 {
  font-size: 27px;
}
.worked-example {
  background: var(--wash);
  padding: 19px 22px;
  margin-bottom: 22px;
}
.worked-example > .eyebrow {
  color: var(--petrol);
  font-size: 10px;
}
.worked-example > p {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.95;
}
.workcard-fields {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin: 0 0 20px;
}
.workcard-fields > div {
  border-top: 1px solid var(--line);
  padding-top: 14px;
}
.workcard-fields dt {
  font: 700 21px/1.6 var(--serif);
  margin-bottom: 7px;
}
.workcard-fields dd {
  margin: 0;
  font-size: 13px;
  line-height: 1.85;
  color: var(--muted);
}
details.source-section {
  border-top: 1px solid var(--line);
  padding: 18px 0 25px;
}
.source-section > summary {
  cursor: pointer;
  color: var(--petrol);
  font-size: 13px;
  line-height: 1.8;
}
.source-section[open] > summary {
  margin-bottom: 20px;
}
@media (max-width: 1200px) {
  .main-nav {
    gap: 24px;
  }
  .path-card {
    padding: 23px;
  }
  .path-card h3 {
    font-size: 23px;
  }
}
@media (max-width: 900px) {
  .site-header {
    min-height: auto;
  }
  .main-nav {
    justify-content: space-around;
    padding-top: 10px;
    gap: 20px;
  }
  .main-nav > a,
  .main-nav > button {
    flex: 1;
    padding-bottom: 14px;
  }
  .learning-paths {
    gap: 16px;
  }
  .path-card {
    padding: 19px;
  }
  .path-card h3 {
    font-size: 22px;
  }
  .path-card > p {
    min-height: 105px;
    font-size: 12px;
  }
  .workcard-section .section-heading {
    align-items: flex-start;
    flex-direction: column;
  }
}
@media (max-width: 700px) {
  .main-nav {
    gap: 8px;
  }
  .main-nav > a,
  .main-nav > button {
    min-width: 0;
    padding: 8px 0 12px;
    gap: 6px;
  }
  .main-nav .nav-title {
    font-size: 32px;
  }
  .main-nav .nav-caption {
    font-size: 10px;
    white-space: normal;
    max-width: 110px;
    min-height: 30px;
    line-height: 1.5;
    text-align: center;
  }
  .main-nav > a[aria-current]::after {
    left: 10px;
    right: 10px;
  }
  .learning-paths {
    grid-template-columns: 1fr;
    gap: 17px;
  }
  .path-card {
    padding: 25px;
  }
  .path-number {
    font-size: 29px;
    margin-bottom: 14px;
  }
  .path-card h3 {
    font-size: 27px;
  }
  .path-card > p {
    min-height: 0;
    font-size: 13px;
  }
  .path-links a {
    font-size: 13px;
    padding: 16px 0;
  }
  .workcard-section {
    padding: 23px 20px;
  }
  .workcard-section .section-heading h2 {
    font-size: 25px;
  }
  .worked-example {
    padding: 17px;
  }
  .worked-example > p {
    font-size: 14px;
  }
  .workcard-fields {
    grid-template-columns: 1fr;
    gap: 17px;
  }
  .workcard-fields dt {
    font-size: 21px;
  }
}