/* Visual enhancement layer. Branding and article structure stay in their files. */
:root {
  --motion-ease: cubic-bezier(.22, 1, .36, 1);
  --motion-fast: 220ms;
  --elevated-shadow: 0 18px 45px rgba(58, 7, 20, .09);
}
/* Native anchor jumps must not race ScrollTrigger's responsive refresh. Reading
 * motion comes from the section choreography; wheel/touch scrolling stays native. */
html.motion-enabled { scroll-behavior: auto; }
body { background-image: radial-gradient(ellipse at 0 35%, rgba(244,197,66,.065), transparent 55%); }
.article-hero { position: relative; isolation: isolate; overflow: clip; color: var(--paper); background: var(--burgundy-950); border-bottom: 1px solid var(--gold-500); }
.article-hero::before { content: ""; position: absolute; z-index: -1; inset: 0; background: radial-gradient(ellipse at 84% 32%, rgba(143,24,53,.6), transparent 49%), linear-gradient(120deg, var(--burgundy-950) 12%, var(--burgundy-900) 70%, #4b0c20); }
.article-hero::after { content: ""; position: absolute; z-index: -1; inset: 0; opacity: .19; background-image: linear-gradient(rgba(255,227,138,.15) 1px, transparent 1px), linear-gradient(90deg, rgba(255,227,138,.15) 1px, transparent 1px); background-size: 64px 64px; mask-image: linear-gradient(90deg, transparent 20%, #000); }
.hero-layout { position: relative; grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr); gap: clamp(2rem, 5vw, 5rem); align-items: center; min-height: 670px; padding-block: 3.8rem 3.5rem; }
.hero-copy { position: relative; z-index: 2; }
.hero-copy h1 { color: var(--paper); font-size: clamp(2.65rem, 4.2vw, 4rem); line-height: 1.1; letter-spacing: -.032em; }
.hero-copy .eyebrow { color: var(--gold-300); font-size: .75rem; }
.hero-copy .eyebrow-row { gap: 1rem; margin-bottom: 2rem; }
.hero-copy .template-label { color: var(--gold-300); border: 1px solid rgba(244,197,66,.25); background: rgba(244,197,66,.075); }
.hero-copy .article-authors { color: var(--gold-300); margin-top: 1.8rem; }
.hero-copy .hero-description { color: rgba(255,250,240,.78); max-width: 55ch; margin-top: 1.25rem; }
.hero-actions { margin-top: 2rem; }
.hero-actions .button { padding: .9rem 1.15rem; box-shadow: 0 5px 22px rgba(244,197,66,.1); }
.hero-actions .text-link { color: var(--gold-300); }
.hero-aside { position: relative; min-width: 0; }
.scientific-scene { position: relative; width: 100%; height: 325px; isolation: isolate; }
.scientific-scene canvas { position: absolute; display: block; inset: 0; width: 100%; height: 100%; z-index: 1; }
.scene-fallback { position: absolute; inset: 13% 17%; border-radius: 50%; border: 1px solid rgba(244,197,66,.42); background-image: radial-gradient(circle, rgba(255,227,138,.8) 1px, transparent 2px); background-size: 24px 24px; transform: rotate(-22deg); box-shadow: inset 0 0 45px rgba(244,197,66,.1); mask-image: radial-gradient(ellipse, #000 25%, transparent 74%); }
.scene-ready .scene-fallback { visibility: hidden; }
.scene-orbit { position: absolute; inset: 15% 13%; border: 1px solid rgba(244,197,66,.18); border-radius: 50%; transform: rotate(-30deg); }
.orbit-two { inset: 6% 28%; transform: rotate(40deg); }
.orbit-three { inset: 35% 0; transform: rotate(-18deg); border-color: rgba(244,197,66,.1); }
.scene-marker { position: absolute; color: var(--gold-300); font-size: .8rem; opacity: .6; }
.marker-one { top: 12%; left: 10%; }.marker-two { bottom: 15%; right: 9%; }
.publication { padding: 1.1rem 1.3rem; margin-top: .3rem; background: rgba(38,4,13,.38); border: 1px solid rgba(255,227,138,.2); border-top: 2px solid var(--gold-500); box-shadow: 0 16px 45px rgba(0,0,0,.08); }
.publication .eyebrow { color: var(--gold-300); font-size: .75rem; }
.publication dl { display: grid; grid-template-columns: 1fr 1fr; column-gap: 1.5rem; margin-top: .5rem; }
.publication dl > div { grid-template-columns: 1fr; gap: .25rem; border-color: rgba(255,227,138,.14); padding: .6rem 0; }
.publication dt { color: rgba(255,250,240,.68); }.publication dd { color: var(--paper); }
.research-journey { display: grid; grid-template-columns: repeat(5, minmax(0,1fr)); padding-block: 1.2rem; border-top: 1px solid rgba(255,227,138,.22); }
.research-journey a { position: relative; display: flex; gap: .75rem; align-items: center; min-height: 44px; padding: .6rem 1rem; color: var(--paper); text-decoration: none; font-size: .875rem; border-right: 1px solid rgba(255,227,138,.15); transition: background var(--motion-fast); }
.research-journey a:first-child { padding-left: 0; }.research-journey a:last-child { border-right: 0; }
.research-journey a > span { color: var(--gold-500); font-size: .75rem; }
.research-journey a > i { font-style: normal; color: var(--gold-300); margin-left: auto; transition: transform var(--motion-fast); }
.research-journey a:hover { background: rgba(255,227,138,.06); }.research-journey a:hover i { transform: translate(2px,-2px); }
.article-hero :focus-visible { outline-color: var(--gold-500); }
.reading-progress { position: fixed; top: 0; left: 0; right: 0; height: 3px; z-index: 60; pointer-events: none; background: rgba(244,197,66,.1); }
.reading-progress span { display: block; height: 100%; width: 100%; transform: scaleX(0); transform-origin: left; background: var(--gold-500); }
.motion-toggle { position: fixed; bottom: 1rem; right: 1rem; z-index: 40; display: flex; align-items: center; gap: .5rem; min-height: 44px; padding: .5rem .85rem; border: 1px solid rgba(244,197,66,.4); border-radius: 999px; background: var(--burgundy-950); color: var(--gold-300); box-shadow: 0 4px 15px rgba(38,4,13,.12); font-size: .875rem; }
.motion-toggle::before { content: "Ⅱ"; font-size: .85rem; }.motion-toggle[aria-pressed="true"]::before { content: "▷"; }
.motion-toggle:focus-visible { outline-color: var(--gold-500); }
.research-section { position: relative; padding-block: 4.5rem; border-bottom-color: rgba(93,16,36,.12); --section-progress: 0; }
.research-section::before { content: ""; position: absolute; left: 0; bottom: -1px; width: 100%; height: 1px; transform: scaleX(var(--section-progress)); transform-origin: left; background: linear-gradient(90deg, var(--burgundy-650), var(--gold-500)); }
.section-heading { margin-bottom: 2.2rem; gap: 1.35rem; }
.section-number { position: relative; min-height: 3rem; flex-basis: 3rem; border: 0; border-top: 2px solid var(--gold-500); border-radius: 0; background: var(--burgundy-900); color: var(--gold-300); box-shadow: 0 7px 16px rgba(58,7,20,.1); }
.section-heading h2 { font-size: clamp(1.9rem, 2.7vw, 2.55rem); letter-spacing: -.025em; }
.section-heading .eyebrow { font-size: .75rem; }
.research-question { position: relative; isolation: isolate; overflow: hidden; padding: 2.3rem 2.5rem; background: var(--burgundy-900); border: 1px solid var(--burgundy-800); border-left: 3px solid var(--gold-500); box-shadow: var(--elevated-shadow); }
.research-question::after { content: ""; position: absolute; z-index: -1; right: -1rem; top: -4rem; width: 19rem; height: 19rem; border: 1px solid rgba(244,197,66,.15); border-radius: 50%; box-shadow: 0 0 0 2.2rem rgba(244,197,66,.035),0 0 0 4.4rem rgba(244,197,66,.025); }
.research-question .eyebrow { color: var(--gold-300); }.research-question > p:last-child { color: var(--paper); font-size: clamp(1.35rem, 2.3vw, 1.9rem); margin-top: .75rem; max-width: 48ch; line-height: 1.4; }
.research-flow { display: flex; align-items: center; gap: 1rem; margin-block: 1.7rem; }
.research-flow a { display: flex; align-items: center; gap: .7rem; min-height: 44px; text-decoration: none; font-size: .875rem; font-weight: 600; }
.research-flow a span { display: grid; place-items: center; width: 2rem; height: 2rem; border-radius: 50%; color: var(--burgundy-800); border: 1px solid var(--brain-border); background: var(--brain-surface); font-size: .7rem; }
.research-flow > i { position: relative; flex: 1; height: 1px; background: var(--brain-border); transform-origin: left; }
.research-flow > i::after { content: ""; position: absolute; right: 0; top: -2px; width: 5px; height: 5px; border-radius: 50%; background: var(--burgundy-650); }
.overview-grid { gap: 1rem; overflow: visible; border: 0; border-radius: 0; background: none; }
.overview-grid .info-card:nth-child(n) { position: relative; border: 1px solid var(--brain-border); border-radius: var(--brain-radius); background: var(--brain-surface); padding: 1.6rem; box-shadow: 0 3px 12px rgba(58,7,20,.025); }
.overview-grid .info-card::before { content: ""; display: block; width: 1.6rem; height: 3px; margin-bottom: 1.25rem; background: linear-gradient(90deg,var(--burgundy-650) 50%,var(--gold-500) 50%); transition: width var(--motion-fast) var(--motion-ease); }
.overview-grid .info-card:hover::before { width: 3rem; }
.overview-grid .info-card dt { font-size: .87rem; }
.methods-layout { padding: 2rem; gap: 2.5rem; background: linear-gradient(115deg,var(--burgundy-950),var(--burgundy-900)); border: 1px solid var(--burgundy-800); border-radius: .65rem; box-shadow: var(--elevated-shadow); }
.method-summary { background: rgba(255,250,240,.04); border-color: rgba(255,227,138,.22); }
.method-summary .info-card + .info-card { border-color: rgba(255,227,138,.18); }
.method-summary dt { color: var(--gold-300); }.method-summary dd { color: rgba(255,250,240,.78); }
.method-details { position: relative; border: 0; padding-left: 2.2rem; counter-reset: method; }
.method-details::before { content: ""; position: absolute; top: 1.5rem; bottom: 1.5rem; left: .45rem; width: 1px; background: rgba(255,227,138,.28); }
.method-details details { position: relative; counter-increment: method; border-color: rgba(255,227,138,.2); }
.method-details details::before { content: counter(method, decimal-leading-zero); position: absolute; top: 1.15rem; left: -2.2rem; display: grid; place-items: center; width: 1.1rem; height: 1.1rem; border-radius: 50%; background: var(--burgundy-900); color: var(--gold-300); font-size: .7rem; }
.method-details summary { color: var(--paper); }.method-details summary:hover { color: var(--gold-300); }.method-details details > p { color: rgba(255,250,240,.73); }
.method-details :focus-visible { outline-color: var(--gold-300); }
.details-symbol { display: grid; place-items: center; min-width: 1.8rem; height: 1.8rem; border: 1px solid rgba(255,227,138,.3); border-radius: 50%; color: var(--gold-300); }
.metric-card { position: relative; overflow: hidden; isolation: isolate; padding: 1.75rem; min-height: 13rem; box-shadow: var(--elevated-shadow); border-top-width: 2px; }
.metric-card::after { content: ""; position: absolute; right: -2.5rem; top: -2.5rem; z-index: -1; width: 9rem; height: 9rem; border: 1px solid var(--brain-border); border-radius: 50%; box-shadow: 0 0 0 1rem rgba(244,197,66,.055); }
.metric-card .metric-value { margin: 1rem 0; font-size: 3.25rem; font-variant-numeric: tabular-nums; }
.metric-card .metric-value .metric-number { font-size: inherit; }
.metric-rule { margin-top: 1.5rem; width: 100%; height: 5px; opacity: .5; background: repeating-linear-gradient(90deg,var(--burgundy-650) 0 1px,transparent 1px 9px); transform-origin: left; }
.findings-grid { gap: 1.25rem; margin-top: 1.5rem; }
.finding-card { position: relative; padding: 1.9rem; border: 0; border-left: 2px solid var(--brain-primary); border-radius: 0 .5rem .5rem 0; background: linear-gradient(110deg, rgba(244,197,66,.09), var(--brain-surface) 70%); }
.finding-card h3 { font-size: 1.4rem; }.finding-index { display: inline-flex; align-items: center; gap: .6rem; }.finding-index::before { content: ""; width: .35rem; height: .35rem; border-radius: 50%; background: var(--burgundy-650); }
.comparison-card { padding: 1.75rem; border: 1px solid var(--brain-border); border-radius: .5rem; background: rgba(255,253,248,.7); }
.comparison-empty { border: 0; background: var(--paper); }
.visualization-card { overflow: hidden; border-color: rgba(93,16,36,.24); box-shadow: var(--elevated-shadow); }
.visualization-card .module-heading { background: linear-gradient(110deg,var(--paper),var(--brain-surface)); border-top: 2px solid var(--burgundy-650); }
.module-heading { padding: 1.7rem; }.module-heading h3 { font-size: 1.4rem; }
.empty-figure { position: relative; overflow: hidden; min-height: 23rem; border: 1px solid var(--brain-border); background-color: var(--paper); background-image: linear-gradient(rgba(93,16,36,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(93,16,36,.05) 1px,transparent 1px); background-size: 36px 36px; }
.empty-figure::before, .empty-figure::after { content: "+"; position: absolute; color: var(--burgundy-650); font-size: 1rem; opacity: .55; }.empty-figure::before { top: .65rem; left: 1rem; }.empty-figure::after { bottom: .65rem; right: 1rem; }
.figure-mark { display: grid; place-items: center; width: 4.5rem; height: 4.5rem; border: 1px solid var(--brain-border); border-radius: 50%; margin-bottom: .65rem; font-size: 1.7rem; background: var(--brain-surface); box-shadow: 0 0 0 .6rem rgba(244,197,66,.09); }
.empty-figure p, .empty-figure > span:not(.figure-mark), .empty-figure small { background: var(--paper); padding-inline: .4rem; }
.empty-figure p { font-size: 1.45rem; }.empty-figure small { padding: .3rem .65rem; border: 1px solid var(--brain-border); border-radius: 1rem; }
.experience-card { margin-top: 2.5rem; overflow: hidden; border-color: var(--burgundy-800); box-shadow: 0 22px 60px rgba(58,7,20,.14); }
.experience-card .module-heading { background: var(--burgundy-950); border-bottom: 1px solid rgba(244,197,66,.22); }
.experience-card .module-heading .eyebrow { color: var(--gold-300); }.experience-card .module-heading h3 { color: var(--paper); }.experience-card .module-label { color: var(--gold-300); border-color: rgba(244,197,66,.25); }
.experience-guide { padding: 2rem 1.7rem; background: var(--burgundy-900); border: 0; }
.experience-guide h4 { color: var(--gold-300); }.experience-guide p { color: rgba(255,250,240,.75); }
.experience-mount { padding: 0; }.experience-mount:not(:has(.experience-placeholder)) { padding: 1.5rem; }
.experience-placeholder { position: relative; isolation: isolate; overflow: hidden; min-height: 24rem; padding: 3rem 2rem; border: 0; background: radial-gradient(ellipse at 70% 40%,#66142d,transparent 70%),var(--burgundy-900); }
.experience-placeholder::before { content: ""; position: absolute; z-index: -1; inset: 0; opacity: .18; background-image: radial-gradient(var(--gold-300) 1px,transparent 1px); background-size: 26px 26px; mask-image: radial-gradient(ellipse,transparent 30%,#000); }
.experience-placeholder::after { content: ""; position: absolute; z-index: -1; left: 50%; top: 50%; width: 31rem; height: 16rem; border: 1px solid rgba(244,197,66,.15); border-radius: 50%; transform: translate(-50%,-50%) rotate(-25deg); box-shadow: 0 0 0 2rem rgba(244,197,66,.025),0 0 0 4rem rgba(244,197,66,.02); }
.experience-placeholder .module-symbol { position: relative; width: 3.4rem; height: 3.4rem; border: 1px solid rgba(244,197,66,.4); border-radius: 50%; background: rgba(244,197,66,.08); color: var(--gold-300); margin-bottom: 1.4rem; }
.experience-placeholder h4 { color: var(--paper); font-size: 1.5rem; }.experience-placeholder p { color: rgba(255,250,240,.75); }.experience-placeholder .placeholder-label { color: var(--gold-300); border-color: rgba(244,197,66,.28); }
.takeaway-list li { padding-left: 3rem; padding-bottom: 2rem; }.takeaway-list li::before { display: grid; place-items: center; width: 1.9rem; height: 1.9rem; top: -.2rem; border: 1px solid var(--brain-border); border-radius: 50%; font-size: .7rem; background: var(--brain-surface); }
.takeaway-list li:not(:last-child)::after { content: ""; position: absolute; left: .95rem; top: 2rem; bottom: .55rem; width: 1px; background: var(--brain-border); }
.limitations { padding: 1.8rem; background: linear-gradient(130deg,var(--gold-100),var(--brain-surface)); border: 1px solid var(--brain-border); border-top: 3px solid var(--gold-500); border-radius: .5rem; }
.research-statement { padding: 2.75rem 2rem; border-block: 1px solid var(--brain-border); margin-top: 2rem; background: radial-gradient(ellipse,var(--gold-100),transparent 70%); }
.research-statement > p:nth-child(2) { font-size: 1.6rem; line-height: 1.4; }
.button { transition: transform var(--motion-fast) var(--motion-ease), background-color var(--motion-fast), box-shadow var(--motion-fast); }.button:hover { transform: translateY(-2px); }.button:active { transform: translateY(0); }.button > span { transition: transform var(--motion-fast); }.button:hover > span { transform: translateY(3px); }
.text-link { text-decoration-thickness: 1px; transition: text-underline-offset var(--motion-fast); }.text-link:hover { text-underline-offset: .45em; }
.view-switch button { transition: background-color var(--motion-fast),color var(--motion-fast),box-shadow var(--motion-fast); }.view-switch button[aria-pressed="true"] { box-shadow: 0 3px 10px rgba(58,7,20,.14); }
@media (hover: hover) and (pointer: fine) and (prefers-reduced-motion: no-preference) {
  .overview-grid .info-card, .metric-card, .finding-card { transition: box-shadow 250ms,border-color 250ms; }
  .overview-grid .info-card:hover, .metric-card:hover, .finding-card:hover { box-shadow: var(--elevated-shadow); border-color: rgba(143,24,53,.45); }
}
@media (max-width: 1100px) {
  .hero-layout { gap: 2rem; grid-template-columns: minmax(0,1.25fr) minmax(0,1fr); }.hero-copy h1 { font-size: clamp(2.5rem,4.7vw,3.6rem); }.scientific-scene { height: 280px; }
  .methods-layout { padding: 1.5rem; gap: 1.5rem; }
}
@media (max-width: 800px) {
  .hero-layout { grid-template-columns: 1fr; padding-block: 3.2rem 2rem; min-height: auto; }.hero-copy h1 { max-width: 20ch; font-size: clamp(2.6rem,6vw,3.6rem); }
  .hero-aside { display: grid; grid-template-columns: 1fr 1.1fr; gap: 1.5rem; align-items: center; }.scientific-scene { height: 250px; }.publication { margin-top: 0; padding: 1rem; }.publication dl { gap: 0 1rem; }
  .research-journey a { padding-inline: .7rem; gap: .4rem; font-size: .875rem; }.research-journey a > i { display: none; }
  .research-section { padding-block: 3.7rem; }.methods-layout { grid-template-columns: 1fr; }.experience-layout { grid-template-columns: 1fr; }
}
@media (max-width: 680px) {
  .hero-layout { padding-top: 2.8rem; gap: 2rem; }.hero-layout h1 { font-size: clamp(2.25rem,8.4vw,3.4rem); max-width: none; }
  .hero-copy .eyebrow-row { margin-bottom: 1.5rem; }.hero-copy .article-authors { margin-top: 1.5rem; }.hero-copy .hero-description { font-size: .97rem; }
  .hero-aside { grid-template-columns: 1fr; gap: .5rem; }.scientific-scene { height: 225px; max-width: 340px; margin-inline: auto; }.publication dl { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .research-journey { grid-template-columns: repeat(3,minmax(0,1fr)); row-gap: .5rem; }.research-journey a:nth-child(3) { border: 0; }.research-journey a:first-child { padding-left: .7rem; }
  .research-section { padding-block: 3rem; }.section-heading { gap: 1rem; }.section-number { flex-basis: 2.4rem; min-height: 2.4rem; }.section-heading h2 { font-size: 1.9rem; }
  .research-question { padding: 1.75rem 1.4rem; }.research-flow { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: .25rem; }.research-flow a { justify-content: center; gap: .35rem; min-width: 0; font-size: .875rem; }.research-flow a span { flex: 0 0 1.65rem; width: 1.65rem; height: 1.65rem; font-size: .65rem; }.research-flow > i { display: none; }
  .overview-grid .info-card:nth-child(n) { padding: 1.5rem; border: 1px solid var(--brain-border); }.methods-layout { padding: 1.25rem; }.method-details { padding-left: 1.8rem; }.method-details details::before { left: -1.8rem; }
  .metric-card { min-height: 12rem; padding: 1.5rem; }.findings-grid { gap: 1rem; }.finding-card { padding: 1.5rem; }.comparison-card { padding: 1rem; }
  .module-heading { padding: 1.3rem; }.module-heading h3 { font-size: 1.3rem; }.empty-figure { min-height: 21rem; padding-inline: .75rem; }.empty-figure p { font-size: 1.3rem; }
  .experience-placeholder { min-height: 24rem; padding: 2.5rem 1.4rem; }.experience-guide { padding: 1.5rem; }.research-statement { padding: 2rem 1rem; }.research-statement > p:nth-child(2) { font-size: 1.4rem; }
  .motion-toggle { bottom: .7rem; right: .7rem; font-size: .8125rem; padding-inline: .75rem; }
}
@media (prefers-reduced-motion: reduce) {
  .motion-toggle { display: none; }.research-section { --section-progress: 1; }
  .button:hover, .button:hover > span, .research-journey a:hover i { transform: none; }
}