.tractor-article{--accent:#995024;--exhibit:#d7dfdc}
.how-to-steps{padding-left:24px;margin:28px 0}.how-to-steps li{padding:0 0 17px 12px}.how-to-steps li::marker{font:14px monospace;color:var(--accent)}.how-to-steps h3{font:24px/1.3 Georgia,serif;margin:0 0 9px}.how-to-steps p{font-size:16px!important;margin:0}.starter-prompt{background:#e8ecdf;border:1px solid #cbd3c3;padding:25px 28px;margin:24px 0}.starter-prompt>.eyebrow{font-size:10px;color:var(--accent)}.starter-prompt blockquote{font:18px/1.65 Georgia,serif;margin:16px 0 0;padding:0;border:0;color:var(--ink)}
.patent-head{padding:52px 0 38px}.patent-head>.eyebrow{display:flex;align-items:center;gap:14px}.project-mark{border:1px solid #9cae9e;padding:3px 8px;letter-spacing:1px}.head-date{margin-left:auto;color:var(--muted);letter-spacing:.7px}.patent-head h1{font:400 clamp(54px,7.7vw,94px)/.98 Georgia,serif;letter-spacing:-4px;margin:29px 0 24px}.patent-head h1 em{font-weight:400;color:var(--accent)}.patent-deck{display:flex;align-items:end;justify-content:space-between;gap:40px}.patent-deck p{font-size:21px;line-height:1.55;color:var(--muted);max-width:545px;margin:0}.text-link{font-size:14px;white-space:nowrap}.text-link span{margin-left:15px}
.model-exhibit{border:1px solid #bac6be;background:var(--exhibit);border-radius:3px;overflow:hidden}.exhibit-bar{display:flex;justify-content:space-between;gap:18px;padding:17px 24px;border-bottom:1px solid #b7c4bc;font:11px/1.5 monospace;letter-spacing:1px;text-transform:uppercase;background:#e6ebe3}.exhibit-bar>span:first-child{display:flex;align-items:center;gap:9px}.status-dot{height:6px;width:6px;display:inline-block;background:#587457;border-radius:50%}.exhibit-id{color:#526257}.exhibit-id span{margin:0 10px;color:#95a28f}.model-stage{position:relative;aspect-ratio:1.97;overflow:hidden;isolation:isolate}.model-canvas{position:absolute;inset:0;width:100%;height:100%;display:block;opacity:0;touch-action:pan-y;outline-offset:-5px!important}.model-exhibit.ready .model-canvas{opacity:1}.model-poster{display:block;width:100%;height:100%;object-fit:cover}.model-exhibit.ready .model-poster{visibility:hidden}.stage-hint{position:absolute;bottom:14px;left:24px;margin:0;font:12px/1.6 monospace;color:#536357;pointer-events:none}.stage-hint span{margin:0 6px}.reset-view{position:absolute;bottom:13px;right:24px;border:0;background:#ecf0e6d9;border-radius:2px;font-size:12px;padding:9px 12px;color:var(--ink);cursor:pointer}.reset-view span{margin-left:8px}.exhibit-controls{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:16px 22px;background:#e7ece3;border-top:1px solid #b7c4bc}.model-views{display:flex;gap:4px;padding:3px;background:#d5ded3;border-radius:3px}.model-views button{border:0;background:transparent;color:#405448;font-size:13px;padding:10px 15px;border-radius:2px;cursor:pointer}.model-views button[aria-pressed=true]{background:#f7f9f1;color:#192d23;box-shadow:0 1px 3px #21342818}.motion-controls{display:flex;gap:15px;align-items:center}.motion-toggle{border:1px solid var(--dark);color:#f1f5ea;background:var(--dark);padding:11px 15px;border-radius:2px;font-size:13px;min-width:117px;cursor:pointer}.motion-toggle:hover{background:#2e4636}.motion-controls label{font-size:12px;color:#536257;display:flex;gap:8px;align-items:center}.motion-controls select{background:transparent;border:1px solid #abb9ac;border-radius:2px;padding:9px 8px;font-size:13px;color:#23382c}.model-exhibit button:disabled,.model-exhibit select:disabled{cursor:wait;opacity:.5}.exhibit-caption{padding:12px 24px;background:#f0f3eb;display:flex;justify-content:space-between;gap:20px;font-size:11px;line-height:1.6;color:#5a695c}.exhibit-caption p{margin:0}.no-script{padding:0 24px;font-size:14px}.model-exhibit.error .model-canvas{display:none}.model-exhibit.error .stage-hint{display:none}
.article-facts{display:grid;grid-template-columns:1fr 1fr 1.2fr;gap:25px;padding:25px 0 31px;border-bottom:1px solid var(--line)}.article-facts span{font:10px monospace;letter-spacing:1.1px;color:var(--muted);display:block;margin-bottom:8px}.article-facts strong{font-size:14px;font-weight:500}.patent-layout{padding-top:58px;gap:68px;grid-template-columns:190px minmax(0,1fr)}.toc-title{font:11px monospace;color:var(--muted);letter-spacing:1px;text-transform:uppercase;display:block;margin:6px 0 12px}.patent-layout .prose{max-width:810px}.prose section{scroll-margin-top:30px}.section-kicker{color:var(--accent);margin-top:62px;font-size:10px;letter-spacing:1.2px}.prose section:first-child .section-kicker{margin-top:0}.patent-layout .prose h2{margin:13px 0 22px;font-size:39px}.patent-layout .prose p{max-width:730px}.patent-sheet{background:#fff;border:1px solid #d4d9cd;padding:24px 26px 0;box-shadow:0 8px 26px #233d2510}.patent-sheet-head{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #d6dacf;padding:0 0 16px;gap:20px;font:10px/1.5 monospace;letter-spacing:1.2px;color:#687165}.patent-sheet-head strong{font:23px Georgia,serif;letter-spacing:0;color:var(--ink)}.patent-sheet img{border:0;margin:20px 0 10px;width:100%;height:auto}.patent-sheet figcaption{display:flex;align-items:center;justify-content:space-between;gap:18px;margin:0;padding:18px 0;border-top:1px solid #d6dacf;font-size:12px}.patent-sheet figcaption strong{font-weight:500;color:var(--ink)}.patent-sheet figcaption a{font-size:12px}.try-model{display:flex;gap:18px;border-left:2px solid #a4653b;padding:18px 23px;background:#e9eadc;margin:28px 0}.try-model>span{font:28px Georgia,serif;color:var(--accent)}.try-model p{font-size:16px!important;margin:0}.try-model button{padding:0;border:0;background:none;color:var(--ink);text-decoration:underline;text-underline-offset:4px;cursor:pointer;font:inherit}.try-model button:hover{color:var(--accent)}
.tool-steps{margin:30px 0;border-top:1px solid var(--line)}.tool-steps>div{display:flex;gap:24px;padding:25px 0;border-bottom:1px solid var(--line)}.step-number{font:12px monospace;color:var(--accent);padding-top:8px}.tool-steps h3{margin:0 0 8px;font:24px Georgia,serif}.tool-steps h3 span{font:11px Arial,sans-serif;display:inline-block;margin-left:12px;color:var(--muted)}.tool-steps p{font-size:16px!important;margin:0}.study-pair{display:grid;grid-template-columns:1fr 1fr;gap:12px}.study-pair img{width:100%;height:auto}.study-pair>div>span{display:block;font:11px monospace;color:var(--muted);margin-top:9px}.study-pair figcaption{grid-column:1/-1;margin-top:0}.finished-model{margin-inline:-40px!important}.finished-model img{width:100%;height:auto;border:0}.finished-model figcaption{margin-inline:40px}.source-notes{padding-top:4px}.source-notes p{font-size:16px!important}.source-links{list-style:none;padding:0;margin:25px 0;border-top:1px solid var(--line)}.source-links li{border-bottom:1px solid var(--line);font-size:14px;line-height:1.5}.source-links a{display:flex;justify-content:space-between;gap:18px;padding:17px 0;text-decoration:none}.source-links a:hover{text-decoration:underline}.source-links span{font-size:11px;color:var(--muted);padding-top:3px}.return-journal{margin-top:30px}
.tractor-teaser{display:grid;grid-template-columns:.85fr 1.15fr;grid-column:1/-1;gap:32px;align-items:center;background:#e5e9de;border-top:2px solid var(--orange);padding:0;overflow:hidden}.tractor-teaser img{display:block;width:100%;height:265px;object-fit:cover}.tractor-teaser>div{padding:26px 26px 26px 0}.tractor-teaser h3{font-size:35px;max-width:550px;margin-top:13px}.tractor-teaser p{max-width:570px;margin-bottom:10px}
@media(max-width:1000px){.patent-head h1{font-size:76px}.patent-deck{gap:30px}.patent-deck p{font-size:19px;max-width:480px}.exhibit-controls{padding:14px;gap:10px}.model-views button{padding:10px;font-size:12px}.motion-controls{gap:8px}.motion-controls label{gap:5px}.patent-layout{grid-template-columns:150px minmax(0,1fr);gap:30px}.finished-model{margin-inline:0!important}.finished-model figcaption{margin-inline:0}.tractor-teaser h3{font-size:29px}}
@media(max-width:700px){.patent-head{padding:31px 0 28px}.patent-head>.eyebrow{font-size:10px;gap:9px}.head-date{font-size:9px;letter-spacing:0}.patent-head h1{font-size:62px;letter-spacing:-2.8px;margin:26px 0 22px}.patent-deck{display:block}.patent-deck p{font-size:18px}.text-link{display:inline-block;margin-top:19px;font-size:13px}.exhibit-bar{padding:13px 14px;font-size:9px;letter-spacing:.5px}.exhibit-id span{margin:0 4px}.model-stage{aspect-ratio:1.08}.stage-hint{bottom:15px;left:13px;font-size:10px;max-width:150px}.reset-view{right:12px;bottom:11px;font-size:11px;padding:8px}.exhibit-controls{flex-wrap:wrap;padding:12px;gap:12px}.model-views{width:100%}.model-views button{flex:1;padding:10px 7px;font-size:12px}.motion-controls{width:100%;justify-content:space-between}.motion-controls label{gap:10px}.exhibit-caption{display:block;padding:11px 14px;font-size:10px}.exhibit-caption>span{display:block;margin-top:3px}.article-facts{grid-template-columns:1fr 1fr;gap:20px 12px;padding:23px 0}.article-facts>div:last-child{grid-column:1/-1}.article-facts strong{font-size:13px}.patent-layout{grid-template-columns:1fr;gap:25px;padding-top:25px}.toc-title{display:none}.patent-layout .toc{font-size:12px;gap:20px}.patent-layout .prose h2{font-size:33px}.section-kicker{margin-top:46px}.patent-sheet{padding:18px 14px 0}.patent-sheet-head{font-size:9px}.patent-sheet-head strong{font-size:21px}.patent-sheet figcaption{display:block;font-size:11px}.patent-sheet figcaption a{display:inline-block;margin-top:10px;font-size:11px}.patent-layout .prose p{font-size:17px}.try-model{padding:16px;gap:13px}.tool-steps>div{gap:16px;padding:22px 0}.tool-steps h3 span{display:block;margin:8px 0 12px}.tool-steps p{font-size:15px!important}.study-pair{gap:10px}.study-pair>div>span{font-size:9px;line-height:1.6}.source-links a{font-size:13px}.source-links span{font-size:10px;white-space:nowrap}.tractor-teaser{grid-template-columns:1fr;gap:0}.tractor-teaser img{height:auto}.tractor-teaser>div{padding:24px}.tractor-teaser h3{font-size:29px}}
@media(prefers-reduced-motion:reduce){.model-stage *{scroll-behavior:auto}.status-dot{animation:none}}
@media print{.model-canvas,.exhibit-controls,.reset-view,.stage-hint,.toc{display:none!important}.model-exhibit.ready .model-poster{visibility:visible}.model-stage{aspect-ratio:1600/1100}.wrap{padding:0}.patent-layout{display:block}.source-notes{break-before:page}.site-header,.site-footer{font-size:10px}.patent-head h1{font-size:54px}}