/* The original editorial feature, with its published map in the image slot. */
body.public-page .brain-feature {display:block;min-height:0;padding-block:clamp(72px,10vw,144px);}
.brain-feature__heading {display:grid;grid-template-columns:minmax(0,1fr) minmax(230px,.38fr);gap:40px;align-items:end;padding-bottom:40px;}
body.public-page .brain-feature__heading .eyebrow {margin:0 0 24px;}
body.public-page .brain-feature__heading h2 {max-width:19ch;margin:0;font-size:clamp(2.6rem,5.7vw,5.7rem);line-height:1.04;letter-spacing:-.055em;text-wrap:balance;}
body.public-page .brain-feature__status {margin:0;font:500 .65rem/1.8 var(--font-mono);color:var(--muted);}
.brain-feature__status::before {content:"";display:inline-block;width:5px;height:5px;margin-right:9px;background:var(--scene-accent);vertical-align:middle;}
.brain-feature__actions {display:flex;flex-direction:column;align-items:start;gap:14px;margin-top:22px;}
.brain-feature__actions > span {font:.63rem/1.5 var(--font-mono);color:var(--muted);}
.brain-feature__visual {position:relative;min-width:0;margin:0;}
.brain-feature__controls {display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px;margin-bottom:18px;}
.brain-feature.is-brain-ready .brain-feature__controls {display:grid;}
.brain-feature__chapters {display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(24px,4vw,64px);padding-top:36px;}
.brain-feature__beat {min-width:0;}
.brain-feature__beat h3 {margin:0 0 20px;font:500 .8rem/1.6 var(--font-mono);}
.brain-feature__controls a {text-decoration:none;position:relative;display:flex;align-items:baseline;gap:12px;width:100%;min-height:44px;padding:0 0 14px;border:0;border-bottom:1px solid var(--line);border-radius:0;background:none;color:var(--fg);text-align:start;font:500 .74rem/1.6 var(--font-mono);cursor:pointer;transition:color 300ms,border-color 400ms;}
.brain-feature__index {margin-right:6px;font-size:.6rem;color:var(--muted);}
.brain-feature__chaptermark {margin-inline-start:auto;transition:translate 350ms;}
.brain-feature__controls a:is(:hover,:focus-visible) {color:var(--scene-accent);}
.brain-feature__controls a:hover .brain-feature__chaptermark {translate:2px -2px;}
.brain-feature.is-brain-ready .brain-feature__controls a[aria-pressed="true"] {border-color:var(--scene-accent);}
body.public-page .brain-feature__beat p {margin:0;font-size:1rem;line-height:1.85;color:var(--muted);}
.brain-feature__related {display:grid;grid-template-columns:minmax(0,1fr) auto;gap:28px;align-items:center;margin-top:48px;padding-block:26px;border-top:1px solid var(--line);}
body.public-page .brain-feature__related p {max-width:80ch;margin:0;color:var(--muted);font-size:.9rem;line-height:1.8;}
.brain-feature__related a {font-size:.86rem;color:var(--fg);text-underline-offset:5px;}
.brain-feature__systems {margin-top:20px;border-block:1px solid var(--line);}
.brain-feature__systems > summary,.brain-feature .studio-flow-deepening > summary {display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:72px;padding:18px 0;box-sizing:border-box;list-style:none;cursor:pointer;font:500 .74rem/1.65 var(--font-mono);color:var(--fg);}
.brain-feature__systems summary::-webkit-details-marker {display:none;}
.brain-feature__systems > summary:hover {color:var(--scene-accent);}
.brain-feature__instrument {padding-block:20px 40px;min-width:0;}
.brain-feature__visual > .brain-feature__instrument {padding:0;}
/* The section already introduces the project; retain the source labels for
   assistive technology without adding another oversized introduction. */
.brain-feature__visual :is(.ar-flow-title,.ar-flow-intro) {position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;}
.brain-feature__beat {scroll-margin-top:110px;}
.brain-feature__instrument > .studio-flow-scene > .ar-flow-figure {margin-block:0;}
.brain-feature .studio-flow-deepening {margin-top:24px;border-top:1px solid var(--line);}
.studio-flow-deepening__index {color:var(--muted);font-size:.65rem;}
.studio-flow-deepening__mark {position:relative;flex:none;width:18px;height:18px;}
.studio-flow-deepening__mark::before,.studio-flow-deepening__mark::after {content:"";position:absolute;left:3px;top:8px;width:12px;height:1px;background:currentColor;}
.studio-flow-deepening__mark::after {rotate:90deg;transition:rotate 260ms;}
details[open] > summary > .studio-flow-deepening__mark::after {rotate:0deg;}
.brain-feature :is(button,a,summary):focus-visible {outline:2px solid var(--scene-accent,var(--fg));outline-offset:5px;}
@media(max-width:1023px) {.brain-feature__heading {grid-template-columns:1fr;gap:28px;}.brain-feature__actions {flex-direction:row;flex-wrap:wrap;align-items:center;}.brain-feature__chapters {gap:24px;}.brain-feature__related {grid-template-columns:1fr;gap:16px;}}
@media(max-width:767px) {.brain-feature__controls {gap:10px;}.brain-feature__controls a {font-size:.6rem;gap:3px;align-items:center;}.brain-feature__controls .brain-feature__chaptermark {display:none;}.brain-feature__chapters {grid-template-columns:1fr;gap:30px;}.brain-feature__beat h3 {margin-bottom:12px;}.brain-feature__visual > a {margin-inline:-12px;}.brain-feature__viewmark {right:12px;bottom:12px;width:30px;height:30px;}body.public-page .brain-feature__heading h2 {font-size:clamp(2.4rem,9.5vw,4rem);}}
@media(prefers-reduced-motion:reduce) {.brain-feature *, .brain-feature *::after {animation:none!important;transition:none!important;}.brain-feature .brain-feature__visual :is(img,svg) {transform:none!important;}}
@media print {.brain-feature__heading,.brain-feature__chapters {display:block;}.brain-feature__beat {margin-block:24px;break-inside:avoid;}.brain-feature__signals,.brain-feature__viewmark,.brain-feature__actions {display:none;}.brain-feature .brain-feature__visual img {transform:none!important;}}