/* The wheel's silver-face leader opens into the next chapter's horizontal rule.
   The editorial section overlaps the final 60% of the stage, then scrolls freely. */
.chapter-surface,.chapter-thread{display:none;pointer-events:none}
body[data-motion=on] .chapter-surface{display:block;position:absolute;inset:0;z-index:3;background:var(--chalk);opacity:var(--chalk-arrival,0)}
body[data-motion=on] .chapter-thread{display:block;position:absolute;inset:0;z-index:9;width:100%;height:100%;overflow:visible;opacity:var(--bridge-visible,0)}
.chapter-thread path{stroke:var(--thread-color,#f1e8de);stroke-width:1}
body[data-motion=on] .stage .inspection-rig{opacity:calc(1 - var(--chapter-exit,0));color:var(--thread-color,var(--chalk))}
body[data-motion=on] .stage:after{opacity:calc(1 - var(--chalk-arrival,0))}
body[data-motion=on] .inspection-rig .diagram-feature,body[data-motion=on] .diagram-caption{opacity:calc(1 - var(--chapter-ui-exit,0))}
body[data-motion=on] .diagram-feature[data-feature="1"] .leader-line{opacity:calc(1 - var(--bridge-visible,0))}
body[data-motion=on] .site-header,body[data-motion=on] .scene-bottom{opacity:calc(1 - var(--chapter-ui-exit,0))}
.editorial{background:var(--chalk);color:var(--oxblood);padding:44px 6% 50px;z-index:15;overflow:visible;scroll-margin-top:var(--bar)}
body[data-motion=on] .editorial{margin-top:calc(var(--stage-height,858px)*-.6)}
.editorial-rule{top:0;bottom:auto;background:var(--oxblood);opacity:.55}
.editorial-index{opacity:1;font-size:9px;letter-spacing:.13em;color:#77595c}
.editorial-index b{font-weight:400;margin-right:26px;color:var(--oxblood)}
.method-introduction{display:grid;grid-template-columns:1.4fr 1fr;gap:8%;align-items:end;margin:76px 0 83px}
.editorial .method-introduction h2{font-size:clamp(66px,7.8vw,124px);line-height:.94;letter-spacing:-.05em;margin:0;max-width:none}
.editorial h2 em{color:var(--oxblood)}
.method-lede{max-width:340px;padding-bottom:4px}
.method-lede p:first-child{font:400 clamp(22px,2.15vw,33px)/1.22 Newsreader,Georgia,serif;letter-spacing:-.025em;margin-bottom:22px}
.method-lede p:last-child{font-size:12px;line-height:1.9;color:#77595c;margin:0;max-width:320px}
.method-process{display:grid;grid-template-columns:.9fr 2fr;gap:12%;align-items:start}
.method-film{margin:0;max-width:350px;width:100%}
.method-film-slot{position:relative;aspect-ratio:16/9;overflow:hidden;background:#171717}
.method-film-slot img,.method-film-slot video{display:block;width:100%;height:100%;position:absolute;inset:0;object-fit:cover}
.method-film-slot video{opacity:0}
.method-film-slot[data-playing=true] video{opacity:1}
.film-mark{position:absolute;bottom:13px;left:15px;font-size:7px;letter-spacing:.12em;color:var(--chalk)}
.method-film figcaption{font-size:7px;letter-spacing:.13em;color:#77595c;margin-top:16px}
body[data-motion] .method-film .film-control{opacity:1;visibility:visible;margin:11px 0 0;max-width:none;min-height:44px;font-size:10px;border-color:#38141d30;gap:10px}
.method-film .film-icon{border-color:#38141d45;flex-shrink:0}
.method-film .film-duration{display:block;color:#77595c;font-size:8px}
.method-film .film-control:hover .film-icon{background:#38141d12}
.method-principles{padding:0;margin:0;list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.method-principles li{border-top:1px solid #38141d44;padding-top:16px}
.principle-number{font-size:9px;font-variant-numeric:tabular-nums;color:#77595c}
.method-principles h3{font:400 clamp(27px,2.6vw,40px)/1.1 Newsreader,Georgia,serif;letter-spacing:-.035em;margin:37px 0 16px}
.method-principles p{font-size:11px;line-height:1.85;color:#77595c;margin:0;max-width:205px}
.method-close{display:flex;align-items:center;justify-content:space-between;margin-top:75px;padding-top:23px;border-top:1px solid #38141d26;gap:20px}
.method-close>span{font-size:8px;letter-spacing:.14em;color:#77595c}
.editorial .circle{border-color:#38141d55}
.editorial .circle-link:hover .circle{background:var(--oxblood);color:var(--chalk);transform:translateY(-3px)}
body[data-motion=on] [data-method-reveal]{opacity:calc(.15 + var(--chapter-reveal,0)*.85);transform:translateY(calc((1 - var(--chapter-reveal,0))*24px))}
body[data-motion=on] [data-method-reveal]:focus-within{opacity:1;transform:none}
.study-footer{border-top:1px solid #38141d20}
@media(max-width:1050px){
 .method-introduction{gap:5%;margin:65px 0}
 .editorial .method-introduction h2{font-size:8.2vw}
 .method-process{gap:6%;grid-template-columns:1fr 2fr}
 .method-principles{gap:18px}
 .method-principles p{font-size:10px}
}
@media(max-width:760px){
 .editorial{padding:30px 7% 35px}
 .editorial-rule{left:7%;right:7%}
 .editorial-index{font-size:8px}
 .editorial-index b{margin-right:16px}
 .method-introduction{grid-template-columns:1fr;gap:30px;margin:51px 0 42px}
 .editorial .method-introduction h2{font-size:clamp(51px,12.5vw,85px)}
 .method-lede{max-width:420px}
 .method-lede p:first-child{font-size:25px;margin-bottom:17px}
 .method-lede p:last-child{font-size:11px;max-width:360px}
 .method-process{grid-template-columns:1fr;gap:41px}
 .method-film{max-width:430px}
 .method-principles{grid-template-columns:1fr;gap:0}
 .method-principles li{display:grid;grid-template-columns:32px 1fr;gap:17px;padding:22px 0}
 .principle-number{padding-top:5px}
 .method-principles h3{font-size:32px;margin:0 0 10px}
 .method-principles p{font-size:11px;max-width:320px}
 .method-close{margin-top:32px;padding-top:20px}
 .method-close>span{font-size:6px;max-width:90px;line-height:1.7}
 .method-close .circle-link{font-size:9px;gap:12px}
}
@media(min-width:481px) and (max-width:760px) and (max-height:650px){
 .method-introduction{grid-template-columns:1.15fr 1fr;gap:6%;margin:44px 0}
 .editorial .method-introduction h2{font-size:8.7vw}
 .method-lede p:first-child{font-size:22px}
 .method-lede p:last-child{font-size:10px}
 .method-process{grid-template-columns:1fr 1.15fr;gap:8%}
 .method-principles li{padding:16px 0;grid-template-columns:20px 1fr;gap:12px}
 .method-principles li:first-child{padding-top:0;border-top:0}
 .method-principles h3{font-size:26px}
 .method-principles p{font-size:10px}
}