/* Content tokens derive from the reference palette in css/brand.css. */
:root {
  --brain-primary: var(--burgundy-800);
  --brain-secondary: var(--burgundy-900);
  --brain-accent: var(--gold-500);
  --brain-background: var(--paper);
  --brain-surface: var(--paper-strong);
  --brain-text: var(--ink);
  --brain-muted-text: var(--muted);
  --brain-border: var(--line);
  --brain-radius: .5rem;
  --brain-shadow: 0 4px 18px rgba(38, 4, 13, .035);
  --space-1: .5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 3rem;
  --space-6: 4rem;
  --header-offset: 7rem;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-offset); }
body { margin: 0; color: var(--brain-text); background: var(--brain-background); font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; line-height: 1.5; }
button, a, input, select, textarea { font: inherit; }
button { cursor: pointer; }
button, a, summary { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid var(--burgundy-650); outline-offset: 4px; }
.topbar :focus-visible, .footer :focus-visible { outline-color: var(--gold-500); }
[hidden] { display: none !important; }
img, svg, canvas { max-width: 100%; }
p { margin: 0 0 1rem; }
h1, h2, h3, h4 { color: var(--brain-secondary); }
h2, h3, h4 { margin: 0; }
h1, h2 { text-wrap: pretty; }
a { color: var(--brain-primary); }
p, h1, h2, h3, h4, dd, td, th, .brand small { overflow-wrap: anywhere; }
.skip-link { position: fixed; z-index: 100; top: .5rem; left: .5rem; padding: .8rem 1rem; color: var(--brain-secondary); background: var(--gold-300); transform: translateY(-160%); }
.skip-link:focus { transform: translateY(0); }
.noscript { margin: 3rem; }
/* Original brand layout, with a non-shrinking symbol and accessible navigation. */
.brand-symbol { flex: 0 0 3rem; }
.nav a { min-height: 44px; display: inline-flex; align-items: center; transition: color 180ms, background-color 180ms; }
.nav a[aria-current="location"] { color: var(--gold-300); box-shadow: inset 0 -2px var(--gold-500); }
.nav a[aria-current="location"]:hover { color: var(--burgundy-950); }
.page-width { width: min(1200px, calc(100% - 6rem)); margin-inline: auto; }
.eyebrow { margin: 0; color: var(--burgundy-650); font-size: .75rem; line-height: 1.5; font-weight: 750; letter-spacing: .105em; text-transform: uppercase; }
.article-hero { border-bottom: 1px solid var(--brain-border); background: var(--brain-surface); }
.hero-layout { display: grid; grid-template-columns: minmax(0, 1fr) 15.5rem; align-items: start; gap: 4rem; padding-block: 4.2rem 4.5rem; }
.hero-copy { min-width: 0; }
.eyebrow-row { display: flex; align-items: center; flex-wrap: wrap; gap: .8rem; margin-bottom: 1.5rem; }
.template-label, .module-label, .placeholder-label { display: inline-block; border: 1px solid var(--brain-border); border-radius: .25rem; padding: .28rem .6rem; color: var(--brain-muted-text); font-size: .75rem; font-weight: 600; }
.template-label { color: var(--brain-primary); background: var(--gold-100); border-color: transparent; }
h1 { margin: 0; font-family: Georgia, "Times New Roman", serif; font-size: clamp(2rem, 3.3vw, 3rem); font-weight: 400; line-height: 1.17; letter-spacing: -.024em; }
.article-authors { margin: 1.5rem 0 0; color: var(--brain-primary); font-size: .93rem; font-weight: 600; }
.article-authors > span[aria-hidden] { margin-inline: .35rem; }
.hero-description { max-width: 66ch; margin: 1rem 0 0; font-size: 1rem; color: var(--brain-muted-text); line-height: 1.75; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 1.5rem; align-items: center; margin-top: 1.75rem; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 1.6rem; min-height: 46px; padding: .75rem 1rem; border: 1px solid transparent; border-radius: .35rem; font-size: .9rem; font-weight: 700; text-decoration: none; transition: background-color 180ms; }
.button.primary { color: var(--burgundy-950); background: var(--brain-accent); }
.button.primary:hover { background: var(--gold-300); }
.text-link { display: inline-flex; align-items: center; min-height: 44px; gap: .5rem; font-size: .9rem; text-underline-offset: .25em; }
.publication { margin-top: .25rem; border-top: 3px solid var(--brain-accent); padding-top: 1rem; }
.publication dl { margin: 1rem 0 0; }
.publication dl > div { display: grid; grid-template-columns: 1fr 1.3fr; gap: .5rem; padding: .75rem 0; border-bottom: 1px solid var(--brain-border); font-size: .875rem; }
.publication dt { color: var(--brain-muted-text); }
.publication dd { margin: 0; color: var(--brain-primary); }
.research-section { padding-block: 3.5rem; border-bottom: 1px solid var(--brain-border); }
.research-section:last-child { border-bottom: 0; padding-bottom: 4.5rem; }
.section-heading { display: flex; gap: 1.1rem; align-items: flex-start; margin-bottom: 1.75rem; }
.section-number { flex: 0 0 2.7rem; min-height: 2.7rem; display: grid; place-items: center; border: 1px solid var(--brain-border); border-radius: .3rem; color: var(--brain-primary); font-family: Georgia, serif; font-size: 1.2rem; }
.section-heading h2 { margin-top: .3rem; font-family: Georgia, "Times New Roman", serif; font-size: clamp(1.65rem, 2.2vw, 2rem); font-weight: 400; line-height: 1.25; }
.section-description { margin: .55rem 0 0; max-width: 70ch; color: var(--brain-muted-text); font-size: .9rem; }
.research-question { padding: 1.5rem 1.75rem; border: 1px solid var(--brain-border); border-left: 3px solid var(--brain-primary); border-radius: 0 var(--brain-radius) var(--brain-radius) 0; background: var(--brain-surface); }
.research-question > p:last-child { margin: .5rem 0 0; color: var(--brain-secondary); font-family: Georgia, serif; font-size: 1.25rem; }
.overview-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; margin: 1.2rem 0 0; border: 1px solid var(--brain-border); border-radius: var(--brain-radius); background: var(--brain-surface); overflow: hidden; }
.info-card { padding: 1.35rem 1.5rem; }
.overview-grid .info-card { border-right: 1px solid var(--brain-border); }
.overview-grid .info-card:nth-child(3n) { border-right: 0; }
.overview-grid .info-card:nth-child(n+4) { border-top: 1px solid var(--brain-border); }
.info-card dt { font-size: .875rem; font-weight: 700; color: var(--brain-primary); }
.info-card dd { margin: .65rem 0 0; color: var(--brain-muted-text); font-size: .9rem; line-height: 1.65; }
.methods-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.5fr); gap: 1.5rem; }
.method-summary { margin: 0; border: 1px solid var(--brain-border); border-radius: var(--brain-radius); background: var(--brain-surface); }
.method-summary .info-card + .info-card { border-top: 1px solid var(--brain-border); }
.method-details { border-top: 1px solid var(--brain-border); }
details { border-bottom: 1px solid var(--brain-border); }
summary { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 56px; padding: 1rem .25rem; color: var(--brain-primary); font-size: .95rem; font-weight: 650; cursor: pointer; list-style: none; }
summary::-webkit-details-marker { display: none; }
summary:hover { color: var(--burgundy-650); }
.details-symbol::after { content: "+"; font-size: 1.25rem; font-weight: 400; }
details[open] .details-symbol::after { content: "−"; }
details > p { margin: 0; padding: 0 2rem 1.25rem .25rem; color: var(--brain-muted-text); font-size: .9rem; line-height: 1.7; }
.metrics-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.metric-card { padding: 1.5rem; border: 1px solid var(--brain-border); border-top: 3px solid var(--brain-accent); border-radius: var(--brain-radius); background: var(--brain-surface); box-shadow: var(--brain-shadow); }
.metric-card h3 { font-size: .875rem; font-weight: 650; }
.metric-value { margin: .6rem 0; color: var(--brain-primary); font-family: Georgia, serif; font-size: 2.2rem; line-height: 1.2; }
.metric-value > span:not(.placeholder) { font-family: inherit; font-size: 1rem; }
.metric-note { margin: 0; font-size: .875rem; color: var(--brain-muted-text); }
.findings-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; margin-top: 1rem; }
.finding-card { padding: 1.5rem; border: 1px solid var(--brain-border); border-radius: var(--brain-radius); background: var(--brain-surface); }
.finding-index { color: var(--burgundy-650); font-size: .75rem; letter-spacing: .075em; text-transform: uppercase; font-weight: 700; }
.finding-card h3 { margin-top: .65rem; font-family: Georgia, serif; font-size: 1.25rem; font-weight: 400; }
.finding-card p { margin: .7rem 0 0; color: var(--brain-muted-text); font-size: .9rem; line-height: 1.7; }
.comparison-card { margin-top: 1.75rem; }
.comparison-card > h3 { margin-bottom: 1rem; font-size: .9rem; }
.comparison-empty { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border: 1px solid var(--brain-border); border-radius: var(--brain-radius); }
.comparison-empty > div { padding: 1.25rem 1.5rem; }
.comparison-empty > div + div { border-left: 1px solid var(--brain-border); }
.comparison-empty p:last-child { margin: .5rem 0 0; color: var(--brain-muted-text); font-size: .9rem; }
.visualization-card, .experience-card { margin: 0; border: 1px solid var(--brain-border); border-radius: var(--brain-radius); background: var(--brain-surface); box-shadow: var(--brain-shadow); }
.module-heading { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem; padding: 1.4rem 1.5rem; border-bottom: 1px solid var(--brain-border); }
.module-heading > div:first-child { min-width: 0; flex: 1 1 15rem; }
.module-heading h3 { margin-top: .35rem; font-family: Georgia, serif; font-weight: 400; font-size: 1.2rem; }
.view-switch { display: inline-flex; gap: .25rem; padding: .2rem; border: 1px solid var(--brain-border); border-radius: .35rem; }
.view-switch button { min-height: 44px; padding: .5rem .85rem; border: 0; border-radius: .2rem; background: transparent; color: var(--brain-primary); font-size: .875rem; transition: background-color 180ms, color 180ms; }
.view-switch button[aria-pressed="true"] { color: var(--paper); background: var(--brain-primary); }
.view-switch button:hover { background: var(--gold-100); color: var(--brain-primary); }
.module-description { padding: 1rem 1.5rem 0; color: var(--brain-muted-text); font-size: .9rem; }
.visualization-mount { padding: 1.5rem; min-width: 0; }
.empty-figure { min-height: 17rem; display: flex; align-items: center; justify-content: center; flex-direction: column; padding: 2rem; border: 1px dashed var(--brain-border); background: var(--brain-background); text-align: center; }
.figure-mark { color: var(--burgundy-650); font-size: 2.3rem; font-weight: 300; }
.empty-figure p { margin: .75rem 0 .4rem; font-family: Georgia, serif; font-size: 1.25rem; color: var(--brain-primary); }
.empty-figure > span:not(.figure-mark) { font-size: .9rem; color: var(--brain-muted-text); }
.empty-figure small { margin-top: 1.1rem; color: var(--brain-muted-text); font-size: .875rem; }
.visualization-card figcaption { display: flex; flex-direction: column; gap: .5rem; padding: 1rem 1.5rem; border-top: 1px solid var(--brain-border); font-size: .875rem; color: var(--brain-muted-text); }
.source { font-size: .8125rem; color: var(--brain-muted-text); }
.table-empty { display: grid; align-content: center; min-height: 20rem; padding: 2rem; text-align: center; }
.table-empty > p { margin: .4rem 0; }
.muted { color: var(--brain-muted-text); font-size: .9rem; }
.table-scroll { max-width: 100%; overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
caption { padding: 1rem; text-align: left; color: var(--brain-primary); font-weight: 650; }
th, td { padding: 1rem; text-align: left; border-top: 1px solid var(--brain-border); min-width: 7rem; }
thead { background: var(--gold-100); color: var(--brain-primary); }
.experience-card { margin-top: 1.5rem; }
.experience-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2.25fr); }
.experience-guide { padding: 1.5rem; border-right: 1px solid var(--brain-border); }
.experience-guide h4 { font-size: .95rem; }
.experience-guide p { margin: .65rem 0 1.5rem; font-size: .9rem; line-height: 1.7; color: var(--brain-muted-text); }
.experience-guide p:last-child { margin-bottom: 0; }
.experience-mount { min-width: 0; padding: 1.5rem; }
.experience-placeholder { display: flex; flex-direction: column; justify-content: center; align-items: center; min-height: 16rem; padding: 2rem; border: 1px dashed var(--brain-border); text-align: center; }
.module-symbol { display: grid; place-items: center; width: 2.7rem; height: 2.7rem; margin-bottom: 1rem; color: var(--brain-primary); background: var(--gold-100); border-radius: .3rem; font-size: 1.4rem; }
.experience-placeholder h4 { font-family: Georgia, serif; font-size: 1.15rem; font-weight: 400; }
.experience-placeholder p { max-width: 46ch; margin: .75rem 0 1rem; color: var(--brain-muted-text); font-size: .9rem; line-height: 1.65; }
.takeaways-layout { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: 3rem; }
.takeaway-list { margin: 0; padding: 0; list-style: none; counter-reset: takeaway; }
.takeaway-list li { counter-increment: takeaway; padding: 0 0 1.5rem 2.25rem; position: relative; }
.takeaway-list li::before { content: counter(takeaway, decimal-leading-zero); position: absolute; left: 0; color: var(--burgundy-650); font-size: .75rem; }
.takeaway-list h3 { font-size: 1rem; }
.takeaway-list p { margin: .5rem 0 0; color: var(--brain-muted-text); line-height: 1.7; font-size: .9rem; }
.limitations { padding: 1.5rem; border-left: 3px solid var(--brain-accent); background: var(--brain-surface); align-self: start; }
.limitations h3 { margin-top: .75rem; font-family: Georgia, serif; font-size: 1.15rem; font-weight: 400; }
.limitations > p:last-child { margin: .75rem 0 0; font-size: .9rem; color: var(--brain-muted-text); line-height: 1.7; }
.research-statement { margin-top: 1.5rem; padding: 1.75rem; border-top: 1px solid var(--brain-border); text-align: center; }
.research-statement > p:nth-child(2) { margin: .8rem auto 0; max-width: 65ch; color: var(--brain-secondary); font-family: Georgia, serif; font-size: 1.25rem; }
.research-statement .source { margin: .8rem 0 0; }
@media (max-width: 1100px) {
  .hero-layout { gap: 2rem; grid-template-columns: minmax(0, 1fr) 13rem; }
  .page-width { width: calc(100% - 4rem); }
  .nav a { padding-inline: .6rem; font-size: .9rem; }
  .experience-layout { grid-template-columns: minmax(0, 1fr) minmax(0, 1.7fr); }
}
@media (max-width: 800px) {
  .hero-layout { grid-template-columns: 1fr; padding-block: 3rem; }
  .publication dl { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 2rem; }
  .overview-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .overview-grid .info-card:nth-child(n) { border: 0; }
  .overview-grid .info-card:nth-child(odd) { border-right: 1px solid var(--brain-border); }
  .overview-grid .info-card:nth-child(n+3) { border-top: 1px solid var(--brain-border); }
  .methods-layout, .experience-layout, .takeaways-layout { grid-template-columns: 1fr; }
  .experience-guide { display: grid; grid-template-columns: 1fr 1fr; gap: .5rem 2rem; border-right: 0; border-bottom: 1px solid var(--brain-border); }
  .experience-guide h4:nth-of-type(2) { grid-column: 2; grid-row: 1; }
  .experience-guide p { margin: 0; }
  .takeaways-layout { gap: 1rem; }
}
@media (max-width: 680px) {
  .topbar { align-items: flex-start; flex-direction: column; }
  .brand { max-width: 100%; }
  .brand small { max-width: none; font-size: .9rem; }
  .nav { width: 100%; flex-wrap: wrap; gap: .15rem; }
  .nav a { padding: .58rem .6rem; font-size: .875rem; }
  .page-width { width: calc(100% - 2rem); }
  .hero-layout { padding-block: 2.5rem; }
  .hero-layout h1 { font-size: clamp(1.85rem, 7.8vw, 2.5rem); }
  .eyebrow-row { margin-bottom: 1.25rem; }
  .research-section { padding-block: 2.5rem; }
  .section-heading { gap: .8rem; }
  .section-number { flex-basis: 2.25rem; min-height: 2.25rem; }
  .section-heading h2 { font-size: 1.65rem; }
  .overview-grid, .metrics-grid, .findings-grid { grid-template-columns: 1fr; }
  .overview-grid .info-card:nth-child(n) { border: 0; }
  .overview-grid .info-card + .info-card { border-top: 1px solid var(--brain-border); }
  .info-card, .finding-card, .metric-card { padding: 1.25rem; }
  .research-question { padding: 1.25rem; }
  .publication dl { column-gap: 1rem; }
  .publication dl > div { grid-template-columns: 1fr; gap: .3rem; }
  .comparison-empty { grid-template-columns: 1fr; }
  .comparison-empty > div + div { border-left: 0; border-top: 1px solid var(--brain-border); }
  .module-heading { padding: 1.25rem; }
  .visualization-mount, .experience-mount { padding: 1rem; }
  .empty-figure, .experience-placeholder { padding: 1.5rem 1rem; }
  .experience-guide { display: block; padding: 1.25rem; }
  .experience-guide p { margin: .6rem 0 1.25rem; }
  .experience-guide p:last-child { margin: .6rem 0 0; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation: none !important; transition: none !important; }
}