/* Native horizontal galleries preserve normal vertical page navigation. */
#assets,#environments{height:auto;min-height:0}
#assets>.pin,#environments>.pin{position:relative;top:auto;height:auto;min-height:0;padding:100px 0 48px;overflow:hidden}
#assets .reference-heading,#environments .world-intro{position:relative;inset:auto;width:auto;margin:0 var(--g);transform:none;opacity:1}
#assets .reference-heading,#environments .world-intro{display:grid;grid-template-columns:1.3fr 1fr;gap:40px;align-items:end}
#assets .reference-heading h2,#environments .world-intro h2{font-size:clamp(40px,4.2vw,72px);margin:0;line-height:1.05}
#assets .reference-heading p,#environments .world-intro p{position:static;max-width:460px;margin:0;font-size:16px;line-height:1.5}
#assets .reference-heading br,#environments .world-intro br{display:none}
.gallery-controls{display:flex;align-items:center;justify-content:flex-end;gap:10px;margin:24px var(--g) 16px}
.gallery-position{font:12px var(--mono);letter-spacing:.06em;margin-right:12px;font-variant-numeric:tabular-nums}
.gallery-controls button{display:grid;place-items:center;width:48px;height:44px;border:1px solid currentColor;border-radius:0;background:transparent;color:inherit;font:26px/1 var(--sans,sans-serif);cursor:pointer;transition:background .18s,color .18s}
.gallery-controls button:hover:not(:disabled){background:var(--blue);color:white;border-color:var(--blue)}
.gallery-controls button:disabled{opacity:.25;cursor:default}
.gallery-controls button:focus-visible,#asset-gallery:focus-visible,#world-gallery:focus-visible{outline:2px solid var(--blue);outline-offset:4px}
#assets{--gallery-h:clamp(330px,53svh,650px)}
#assets .asset-stage,#assets .asset-stage-inner{position:relative;inset:auto;width:100%;height:var(--gallery-h);transform:none}
#assets .asset-window{position:relative;inset:auto;margin-left:var(--g);width:calc(100% - var(--g));height:var(--gallery-h);overflow-x:auto;overflow-y:hidden;scroll-snap-type:x proximity;scrollbar-width:none;overscroll-behavior-x:contain}
#assets .asset-track{display:flex;flex-wrap:nowrap;transform:none;width:max-content;height:var(--gallery-h);will-change:auto;padding-right:var(--g)}
#assets .asset-column{height:var(--gallery-h);scroll-snap-align:start;max-width:calc(100vw - 2 * var(--g))}
#assets .asset-column>.specimen{height:auto;flex:1}
#assets .disclosure{position:static;margin:18px var(--g) 0;max-width:none}
#assets .reference-counter{display:none}
#environments .world-cinema{position:relative;inset:auto;display:flex;gap:16px;height:clamp(360px,57svh,740px);overflow-x:auto;overflow-y:hidden;clip-path:none;will-change:auto;scroll-snap-type:x mandatory;scroll-padding-left:var(--g);scrollbar-width:none;padding:0 var(--g);overscroll-behavior-x:contain}
#environments .world-frame{position:relative;inset:auto;flex:0 0 82%;height:100%;opacity:1;visibility:visible;scroll-snap-align:start;will-change:auto;overflow:hidden}
#environments .world-frame video{height:100%;object-fit:cover}
#environments .world-caption{left:32px;right:32px;bottom:30px;opacity:1}
#environments .world-caption h2{font-size:clamp(34px,4.2vw,68px);margin:0;line-height:1.05}
#environments .world-caption p:last-child{font-size:15px;max-width:520px;margin-top:12px}
#environments .world-index{display:none}
#environments .world-proof{position:static;margin:18px var(--g) 0;opacity:1}
#asset-gallery::-webkit-scrollbar,#world-gallery::-webkit-scrollbar{display:none}
/* Four box demonstrations, one view. */
.cardboard-gallery .box-heading{margin-bottom:24px;align-items:end}
.cardboard-gallery .box-heading h3,.combined-physics .physics-intro h3{font-size:clamp(36px,3.6vw,60px);line-height:1.05}
.cardboard-gallery .box-impact-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px 24px;margin:0}
.cardboard-gallery .box-impact-grid video{width:100%;height:clamp(180px,26svh,340px);aspect-ratio:auto;object-fit:contain;background:#a2acad}
.cardboard-gallery .box-impact-grid figcaption{margin-top:10px}
/* Two paired studies, with the recorded crease trace beside its replay. */
.combined-physics .physics-intro{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:24px}
.combined-physics .physics-intro p{color:#9ca1ad;font-size:15px;max-width:340px}
.physics-study-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px 26px;align-items:stretch}
.physics-study-grid>figure{min-width:0;margin:0}
.physics-study-grid .physics-render,.physics-study-grid .box-render{height:clamp(180px,26svh,330px);aspect-ratio:auto;background:#0a1019}
.physics-study-grid .physics-render video,.physics-study-grid .box-render video{object-fit:contain;width:100%;height:100%}
.physics-study-grid figcaption{margin-top:10px}
.physics-study-grid figcaption h4,.physics-study-grid .box-film figcaption>span{font-size:18px;line-height:1.25;font-weight:500}
.physics-study-grid figcaption small{font:9px/1.5 var(--mono);color:#8297bd;display:block;margin-top:5px}
.physics-study-grid .box-film{grid-column:2;grid-row:2}
.physics-study-grid .box-response{grid-column:1;grid-row:2;display:grid;grid-template-columns:1fr auto;grid-template-rows:auto auto 1fr auto;column-gap:20px;padding:12px 16px;background:#0a1019;border-top:1px solid #ffffff26;min-width:0}
.physics-study-grid .box-trace-head{grid-column:1/-1;margin:0;display:flex;justify-content:space-between;font-size:9px}
.physics-study-grid .box-trace-head .micro{font-size:9px}
.physics-study-grid .box-angle{grid-column:1;grid-row:2;margin:10px 0 0;gap:14px}
.physics-study-grid .box-angle strong{font-size:32px}
.physics-study-grid .box-angle>div{font-size:11px}
.physics-study-grid .box-chart{grid-column:1/-1;grid-row:3;width:100%;height:clamp(100px,15svh,200px);min-height:0;align-self:center}
.physics-study-grid .box-legend{grid-column:1;grid-row:4;font-size:9px;margin:0}
.physics-study-grid .box-recovery{grid-column:2;grid-row:2;font-size:10px;line-height:1.4;max-width:130px;align-self:center;margin:0}
.physics-study-grid .box-recovery strong{font-size:19px}
.physics-details{margin-top:20px;border-top:1px solid #ffffff24;padding-top:14px;color:#a5abb6;font-size:13px}
.physics-details summary{cursor:pointer;width:fit-content;color:#ccd3df}
.physics-detail-copy{padding-top:16px;max-width:1050px;line-height:1.6}
.physics-detail-copy .box-parameters{margin-top:18px}
@media(max-width:760px){
 #assets>.pin,#environments>.pin{padding:88px 0 34px}
 #assets .reference-heading,#environments .world-intro{display:block}
 #assets .reference-heading h2,#environments .world-intro h2{font-size:38px}
 #assets .reference-heading p,#environments .world-intro p{font-size:14px;margin-top:18px;max-width:100%}
 #assets{--gallery-h:clamp(340px,50svh,500px)}
 .gallery-controls{margin-top:22px}.gallery-controls button{height:40px;width:44px}
 #environments .world-cinema{height:440px;gap:12px}
 #environments .world-frame{flex-basis:86%}
 #environments .world-caption{left:20px;right:20px;bottom:24px}
 #environments .world-caption h2{font-size:36px}
 #environments .world-caption p:last-child{font-size:14px}
 .cardboard-gallery .box-heading{display:block}.cardboard-gallery .box-heading p{margin-top:16px}
 .cardboard-gallery .box-impact-grid{gap:18px 12px}
 .cardboard-gallery .box-impact-grid video{height:165px}
 .cardboard-gallery .box-impact-grid figcaption{display:block}.cardboard-gallery .box-impact-grid figcaption span{font-size:14px}.cardboard-gallery .box-impact-grid figcaption small{display:block;font-size:10px;margin-top:5px}
 .combined-physics .physics-intro{display:block}.combined-physics .physics-intro p{margin-top:16px}
 .physics-study-grid{grid-template-columns:1fr;gap:28px}
 .physics-study-grid .physics-render,.physics-study-grid .box-render{height:auto;aspect-ratio:16/10}
 .physics-study-grid .box-film{grid-column:1;grid-row:4}
 .physics-study-grid .box-response{grid-column:1;grid-row:3;min-height:300px}
 .physics-study-grid .box-chart{height:175px}
}
@media(prefers-reduced-motion:reduce){#assets .asset-track{flex-wrap:nowrap}#environments .world-frame{display:block}*{scroll-behavior:auto!important}}

#assets .gallery-controls .asset-learn-more{margin:0 auto 0 0;position:static}

/* Tight real/sim comparisons and stable video-above-response columns. */
#real-to-sim .comparison-reels{width:min(100%,1100px);margin:42px auto 0;gap:38px}
#real-to-sim .comparison-reels video{width:100%;height:auto;aspect-ratio:auto;max-height:440px;object-fit:contain;background:transparent}
#real-to-sim .comparison-reels figure>p{font-size:19px;margin-top:12px}
.physics-study-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:22px 26px}
.physics-study-grid .liquid-demo{grid-column:1;grid-row:1}
.physics-study-grid .box-film{grid-column:2;grid-row:1}
.physics-study-grid .liquid-response{grid-column:1;grid-row:2}
.physics-study-grid .cardboard-response{grid-column:2;grid-row:2;min-width:0}
.study-pair-label{display:flex;justify-content:space-between;align-items:baseline;gap:12px;padding:10px 0;border-top:2px solid var(--blue);font-size:15px;font-weight:500}
.study-pair-label span{font:10px/1.4 var(--mono);color:#9ca9c1;text-align:right}
.physics-study-grid .box-response{height:clamp(180px,26svh,330px);min-height:0;padding:10px 14px;grid-template-rows:auto auto minmax(0,1fr) auto}
.physics-study-grid .box-chart{height:100%;min-height:0;max-height:200px}
.physics-study-grid .box-legend{font-size:9px;gap:12px}
.physics-study-grid .box-trace-head{gap:10px}
.physics-study-grid .box-recovery{display:none}
.physics-study-grid .box-film figcaption{display:block}
.physics-study-grid .box-film figcaption small{margin-top:5px}
@media(max-width:760px){
 #real-to-sim .comparison-reels{gap:30px;margin-top:28px}
 #real-to-sim .comparison-reels video{max-height:none}
 #real-to-sim .comparison-reels figure>p{font-size:16px}
 .physics-study-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:24px 12px}
 .study-pair-label{display:block;font-size:14px;line-height:1.3;padding:10px 0}
 .study-pair-label span{display:block;text-align:left;font-size:9px;margin-top:5px}
 .physics-study-grid .physics-render,.physics-study-grid .box-render{height:150px;aspect-ratio:auto}
 .physics-study-grid .physics-render>.micro,.physics-study-grid .box-render>.micro{display:none}
 .physics-study-grid figcaption h4,.physics-study-grid .box-film figcaption>span{font-size:13px;line-height:1.35}
 .physics-study-grid figcaption small{font-size:8px;line-height:1.5}
 .physics-study-grid .box-response{height:150px;padding:7px;gap:0;grid-template-rows:auto auto minmax(0,1fr) auto}
 .physics-study-grid .box-trace-head>span:first-child{display:none}
 .physics-study-grid .box-trace-head{justify-content:flex-end}.physics-study-grid .box-trace-head .micro{font-size:7px}
 .physics-study-grid .box-angle{gap:6px;margin:4px 0;grid-column:1/-1}
 .physics-study-grid .box-angle strong{font-size:22px;white-space:nowrap}
 .physics-study-grid .box-angle>div{font-size:8px;line-height:1.3}
 .physics-study-grid .box-angle small{font-size:8px}
 .physics-study-grid .box-chart{height:100%;max-height:none;width:100%}
 .physics-study-grid .box-legend{grid-column:1/-1;gap:5px;font-size:7px;flex-wrap:wrap}
 .physics-study-grid .box-legend i{width:10px}
}
.physics-study-grid .box-angle>strong{min-width:0}
.physics-study-grid .box-film figcaption{padding-top:0}
@media(max-width:760px){
 .physics-study-grid .box-angle>strong{min-width:0;font-size:22px}
 .physics-study-grid .box-angle>div{min-width:0}
 .physics-study-grid .box-chart text{font-size:19px}
 .physics-study-grid .box-response,.physics-study-grid .liquid-response .physics-render{height:180px}
 .physics-study-grid .box-legend{justify-content:flex-start}
}
#real-to-sim .comparison-reels{width:min(100%,960px)}
#real-to-sim .comparison-reels video{max-height:none}

/* Shared material headings, separated by a single continuous vertical rule. */
#assets .cardboard-column{width:calc(var(--stack-media) * 1.333333)}
#assets .cardboard-column>.specimen>video{object-fit:contain;background:#a2acad}
.combined-physics .physics-study-grid{position:relative;column-gap:40px}
.combined-physics .physics-study-grid::before{content:"";position:absolute;left:50%;top:0;bottom:0;width:1px;background:#ffffff26;pointer-events:none}
.combined-physics .study-pair-label{border:0;padding-top:0;padding-bottom:14px}
.combined-physics .physics-render,.combined-physics .box-render,.combined-physics .box-response{border-top:0}
.combined-physics .liquid-response,.combined-physics .cardboard-response{padding-top:0;border:0}
@media(min-width:761px){
 #real-to-sim .comparison-reels{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);width:100%;gap:30px;align-items:start}
 #real-to-sim .comparison-reels figure{min-width:0}
}
@media(max-width:760px){
 .combined-physics .physics-study-grid{column-gap:24px}
 .combined-physics .study-pair-label{padding-bottom:12px}
}
/* Match both comparison frames so their labels and captions share a baseline. */
#real-to-sim .comparison-reels video{width:100%;height:auto;aspect-ratio:2 / 1;object-fit:cover;object-position:center}

/* Emphasize the forward arrow while keeping gallery controls minimal. */
#environments .gallery-next{background:var(--blue);border-color:var(--blue);color:white}

/* One heading per mechanics study; the visuals carry the explanation. */
.combined-physics h4.study-pair-label{margin:0;font-size:20px;line-height:1.3;padding:0 0 16px;font-weight:500;min-height:42px}
.combined-physics .flow-context{font-size:12px;line-height:1.5;color:#9ca1ad;margin-top:10px}
.combined-physics .box-trace-head{justify-content:flex-end}
@media(max-width:760px){
 .combined-physics h4.study-pair-label{font-size:15px;min-height:52px;padding-bottom:12px}
 .combined-physics .flow-context{font-size:10px}
}

/* Three mechanics studies share the same two media rows. */
.combined-physics .physics-study-grid{grid-template-columns:repeat(3,minmax(0,1fr));column-gap:32px;position:relative}
.combined-physics .physics-study-grid::before{display:none}
.combined-physics .study-panel{position:relative}
.combined-physics .box-film::before,.combined-physics .cardboard-response::before,.combined-physics .impact-study::before{content:"";position:absolute;left:-16px;top:0;bottom:-22px;width:1px;background:#ffffff26;pointer-events:none}
.combined-physics .cardboard-response::before,.combined-physics .impact-study::before{bottom:0}
.combined-physics .impact-study{grid-column:3;grid-row:1 / span 2;display:grid;grid-template-rows:subgrid;position:relative;min-width:0}
.combined-physics .impact-study figure{margin:0;min-width:0}
.combined-physics .impact-render{position:relative;height:clamp(180px,26svh,330px);background:#a2acad;overflow:hidden}
.combined-physics .impact-render video{display:block;width:100%;height:100%;object-fit:contain}
.combined-physics .impact-render figcaption{position:absolute;left:10px;right:10px;bottom:10px;display:flex;justify-content:space-between;gap:8px;margin:0;padding:7px 10px;background:#080a0dc9;color:white;font-size:12px;line-height:1.3}
.combined-physics .impact-render figcaption span{white-space:nowrap;color:#c4cce0}
@media(max-width:760px){
 .combined-physics .physics-study-grid{grid-template-columns:repeat(2,minmax(0,1fr));column-gap:24px}
 .combined-physics .box-film::before,.combined-physics .cardboard-response::before{left:-12px}
 .combined-physics .impact-study{grid-column:1 / -1;grid-row:3;grid-template-rows:auto;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:12px;padding-top:16px;border-top:1px solid #ffffff26}
 .combined-physics .impact-study::before{display:none}
 .combined-physics .impact-first{display:contents}
 .combined-physics .impact-study .study-pair-label{grid-column:1 / -1;min-height:0;padding-bottom:0}
 .combined-physics .impact-render{height:180px}
 .combined-physics .impact-render figcaption{left:5px;right:5px;bottom:5px;display:block;padding:6px;font-size:10px}
 .combined-physics .impact-render figcaption span{display:block;margin-top:2px}
}

/* Tighter impact crops fill the frame; labels stay below the deformation. */
.combined-physics{--mechanics-media:clamp(220px,calc((100vw - 2 * var(--g) - 64px) / 3),400px)}
.combined-physics .physics-render,.combined-physics .box-render,.combined-physics .box-response{height:var(--mechanics-media)}
.combined-physics .impact-render{height:auto;background:transparent}
.combined-physics .impact-render video{height:var(--mechanics-media);object-fit:cover;object-position:center}
.combined-physics .impact-render figcaption{position:static;display:flex;margin:0;padding:8px 0 0;background:transparent;font-size:12px;line-height:1.4}
@media(max-width:760px){
 .combined-physics .physics-render,.combined-physics .box-render{height:150px}
 .combined-physics .box-response,.combined-physics .liquid-response .physics-render{height:180px}
 .combined-physics .impact-render video{height:auto;aspect-ratio:1;object-fit:contain}
 .combined-physics .impact-render figcaption{display:block;font-size:11px;padding-top:8px}
}