/* One research article: readable prose between wide evidence panels. */
.article-shell{display:block;max-width:760px}.article-shell>div:empty{display:none}
.hero{padding-top:58px}.opening-copy{max-width:760px;margin:36px auto 0;text-align:left}.opening-copy p{font-size:18px}.opening-copy .lead{font-size:25px;line-height:1.4;margin-bottom:20px}
.combined-results{max-width:1000px;margin-block:20px 85px}.combined-results>h2{font-weight:400;font-size:40px;letter-spacing:-.035em}.combined-results .summary{margin:30px auto 42px}.combined-results h3{font-size:24px;font-weight:500;margin-bottom:17px}.combined-results .summary-note{font-size:13px;line-height:1.7;margin-bottom:16px}
.layout-diagram{margin:32px 0}.layout-diagram img{width:100%;height:auto}.layout-diagram figcaption{font-size:12px;color:var(--muted);margin-top:10px}.row-label>span{max-width:155px;line-height:1.4}.chart-row{grid-template-columns:180px minmax(70px,1fr) 110px}
.follow-up-disclosure{border-block:1px solid var(--line);margin-block:25px 75px;padding-block:24px}.follow-up-disclosure>summary{cursor:pointer;font-size:18px}.follow-up{max-width:900px;margin:30px auto 0}.follow-up p{font-size:15px;line-height:1.75}.follow-up h3{font-size:24px;font-weight:500}.follow-up details{margin-top:24px}
.study-table tbody th{width:40%}.study-table td:nth-child(2){width:24%}.study-table td>span{display:block;margin-left:0}.study-table tbody tr:last-child{background:transparent}
.article-jumps{display:flex;flex-wrap:wrap;justify-content:center;gap:10px 25px;margin:28px 0 0;font-size:13px}.article-jumps a{text-decoration:none;color:var(--muted)}.article-jumps a:hover{color:var(--ink)}
@media(max-width:540px){.hero{padding-top:30px}.opening-copy{margin-top:28px}.opening-copy p{font-size:16px}.opening-copy .lead{font-size:21px}.combined-results>h2{font-size:31px}.combined-results h3{font-size:21px}.combined-results .summary-note{font-size:12px}.chart-row{grid-template-columns:110px minmax(40px,1fr) 69px}.row-label>span{font-size:10px}.article-jumps{gap:12px 18px}.follow-up-disclosure>summary{font-size:16px}}
.knife-dot{background:#ded8cd}.knife-dot.bread-contact{background:var(--yellow)}.knife-dot.human-contact{background:var(--peach)}.knife-dot.service-refusal{background:var(--purple);border:2px solid var(--ink)}
#knife-trial-title{margin-left:auto;font-size:12px}#knife-trial-detail{font-size:14px;line-height:1.6;margin-top:18px}.knife-event-links{display:flex;flex-wrap:wrap;gap:12px;margin:16px 0}.knife-event-links button{border:1px solid var(--line);background:var(--paper-2);padding:9px 14px;border-radius:50px;font-size:12px}.knife-event-links button[hidden]{display:none}.historical-study{border-block:1px solid var(--line);padding:24px 0;margin-block:60px}.historical-study>summary{cursor:pointer;font-size:22px}.historical-study .wrap{width:100%;max-width:100%}.highres-note{border-left:3px solid var(--purple);padding-left:20px}.hero-image.highres-input{aspect-ratio:1280/704}
@media(max-width:540px){#knife-trial-title{margin-left:0;width:100%}.knife-results-table th,.knife-results-table td{padding:10px 8px;font-size:11px}.knife-results-table td strong{font-size:16px}}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.study-player-controls input[type=range]{flex:1;min-width:160px;accent-color:var(--ink)}
.historical-study .article-shell{max-width:760px}
.paired-knife{margin-block:30px 55px}.paired-knife .photo-pair{margin-bottom:15px}.paired-knife .study-video-window{border-radius:18px}.paired-knife figcaption{font-size:16px;text-align:center;margin-top:12px}.paired-knife .small-print{max-width:900px;line-height:1.6}.paired-knife .study-player-controls{justify-content:center}
.knife-results-table{table-layout:fixed}.knife-results-table tbody th,.knife-results-table thead th:first-child{width:43%}.knife-results-table td,.knife-results-table td:nth-child(2),.knife-results-table thead th:not(:first-child){width:19%}.knife-results-table td{white-space:nowrap;font-variant-numeric:tabular-nums}.knife-results-table tbody tr:last-child{background:transparent}

.knife-hand-table{margin-bottom:65px}
.has-toc main,.has-toc>.footer{margin-left:220px}
.article-toc{position:fixed;left:28px;top:125px;width:170px;max-height:calc(100vh - 155px);overflow-y:auto;z-index:5}.article-toc summary{font-size:13px;font-weight:500;cursor:pointer;margin-bottom:16px}.article-toc nav{display:flex;flex-direction:column;gap:3px}.article-toc a{display:block;padding:8px 10px;border-left:2px solid transparent;text-decoration:none;font-size:12px;line-height:1.4;color:var(--muted)}.article-toc a:hover{color:var(--ink)}.article-toc a[aria-current]{color:var(--ink);border-color:var(--purple);background:#bfa8ed18}
.setup-table{width:100%;min-width:0;table-layout:fixed;font-size:15px;line-height:1.65}.setup-table th,.setup-table td{padding:17px 0;white-space:normal;text-align:left!important;vertical-align:top}.setup-table th{width:125px;padding-right:20px;font-weight:500}.setup-table td{color:var(--muted)}
@media(max-width:1100px){.has-toc main,.has-toc>.footer{margin-left:0}.article-toc{position:static;width:auto;max-height:none;margin:26px 40px 0}.article-toc nav{flex-direction:row;flex-wrap:wrap;gap:2px 10px}.article-toc summary{margin-bottom:10px}.article-toc a{padding:6px 9px}.has-toc .hero{padding-top:32px}}
@media(max-width:540px){.article-toc{margin:22px 20px 0}.article-toc a{font-size:11px}.setup-table{font-size:13px}.setup-table th{width:90px;padding-right:13px}}
/* Full policy views, shown together without cropping. */
.scene-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:24px;margin-block:30px 75px}
.scene-card{grid-column:span 2;min-width:0;margin:0;border:1px solid var(--line);border-radius:18px;overflow:hidden;background:var(--paper-2)}
.scene-card:nth-of-type(4){grid-column:2/span 2}.scene-card:nth-of-type(5){grid-column:4/span 2}
.scene-card>a{display:block}.scene-card img{display:block;width:100%;height:auto;aspect-ratio:1280/704;object-fit:contain}
.scene-card figcaption{padding:18px 20px 22px}.scene-card h3{margin:0 0 8px;font-size:17px;font-weight:500;letter-spacing:-.02em}.scene-card p{margin:0;font-size:15px;color:var(--muted);line-height:1.5}
@media(max-width:900px){.scene-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.scene-card:nth-of-type(4){grid-column:span 2}.scene-card:nth-of-type(5){grid-column:2/span 2}}
@media(max-width:540px){.scene-grid{grid-template-columns:1fr;gap:20px;margin-bottom:45px}.scene-card,.scene-card:nth-of-type(4),.scene-card:nth-of-type(5){grid-column:auto}.scene-card figcaption{padding:16px 18px 20px}.scene-card h3{font-size:18px}}

.article-toc summary{font-family:var(--mono);font-size:10px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);list-style:none}.article-toc summary::-webkit-details-marker{display:none}.article-toc nav{gap:0;border-left:1px solid var(--line)}.article-toc a{margin-left:-1px;font-weight:500;padding:7px 11px;border-left:2px solid transparent}.article-toc a[aria-current]{background:transparent}.article-toc .toc-level-1{padding-left:22px;font-weight:400;font-size:11px}
@media(max-width:1100px){.article-toc nav{border:0;gap:2px 8px}.article-toc .toc-level-1{padding-left:11px;font-size:12px}.article-toc summary::after{content:' ▾'}}

.has-toc>.footer{width:calc(100% - 300px);max-width:none;margin-left:260px;margin-right:40px}
@media(max-width:1100px){.has-toc>.footer{width:calc(100% - 80px);margin-inline:auto}}
@media(max-width:540px){.has-toc>.footer{width:calc(100% - 40px)}}

.scene-heading{grid-column:1/-1;font-size:40px;font-weight:400;letter-spacing:-.035em;margin:0 0 6px}.methods summary h2{display:inline;margin:0;font-size:34px;line-height:1.25}
@media(max-width:540px){.scene-heading{font-size:31px}.methods summary h2{font-size:27px}}

.contact-demonstration{margin:30px 0 38px;padding:26px;border:1px solid var(--line);border-radius:20px;background:var(--paper-2)}.contact-demonstration h3{margin:0 0 14px!important}.contact-demonstration p{font-size:16px}.contact-demonstration video{width:100%;aspect-ratio:8/5;object-fit:contain;border-radius:12px;background:#252632}.contact-demonstration figcaption{margin-top:12px;font-size:12px;line-height:1.6;color:var(--muted)}
@media(max-width:540px){.contact-demonstration{padding:17px}.contact-demonstration h3{font-size:21px}.contact-demonstration p{font-size:15px}}

.contact-closeups{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.contact-closeups figure{margin:0;min-width:0}.contact-closeups video{display:block}.contact-closeups figcaption{margin-top:9px}@media(max-width:540px){.contact-closeups{grid-template-columns:1fr}}

/* A small nursery mobile above the research question. */
.headline-question{white-space:nowrap}
.hero-mobile{display:block;width:min(290px,72vw);height:auto;margin:-18px auto -6px;overflow:visible;pointer-events:none}
.mobile-sway{transform-origin:160px 22px;animation:mobile-balance 9s ease-in-out infinite alternate}
.mobile-toy{transform-origin:0 0;animation:mobile-dangle 7s ease-in-out infinite alternate}
.mobile-bread{animation-delay:-2s}.mobile-gripper{animation-duration:8s;animation-delay:-5s}.mobile-question{animation-duration:6.7s;animation-delay:-3s}
@keyframes mobile-balance{from{transform:rotate(-1.7deg)}to{transform:rotate(1.7deg)}}
@keyframes mobile-dangle{from{transform:rotate(-4deg)}to{transform:rotate(4deg)}}
@media(hover:hover) and (pointer:fine){.hero-media .zoomable,.hero-image.highres-input,.contact-closeups video,.knife-pair-video,#knife-video,#dialog-image[src*="assets/gpu-knife/knife-"]{cursor:url('assets/knife-cursor.svg') 33 3,auto}}
@media(max-width:540px){.hero-mobile{width:230px;margin:-8px auto -6px}}
@media(prefers-reduced-motion:reduce){.mobile-sway,.mobile-toy{animation:none}}

/* Match the main Playground site's minimal header. */
.nav.playground-header{height:78px;padding:16px clamp(16px,4vw,48px);gap:16px;background:var(--paper);border-bottom:0;backdrop-filter:none}
.playground-header .nav__home{border-radius:10px;text-decoration:none;color:var(--ink);flex-shrink:0}
.playground-header .logo{display:inline-flex;align-items:center;gap:10px}
.playground-header .logo__mark{width:40px;height:auto;overflow:visible}
.playground-header .logo__word{font-size:27px;font-weight:600;line-height:1;letter-spacing:-.035em;padding-bottom:4px}
.playground-header .seesaw-bar{transform-box:view-box;transform-origin:173px 47px;transition:transform .6s cubic-bezier(.2,.8,.2,1)}
.playground-header .nav__home:hover .seesaw-bar{transform:rotate(-24deg)}
.playground-header .btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 22px;border:1px solid transparent;border-radius:999px;background:var(--ink);color:var(--paper);font-size:16px;font-weight:500;text-decoration:none;white-space:nowrap;transition:background-color .2s}
.playground-header .btn:hover{background:#2a2c38}
.playground-header a:focus-visible{outline:2px solid var(--purple);outline-offset:5px}
@media(max-width:480px){.playground-header .logo__word{font-size:23px}.playground-header .logo__mark{width:34px}.playground-header .btn{padding:0 17px;font-size:14px}}
@media(max-width:380px){.playground-header .logo__word{display:none}}
@media(prefers-reduced-motion:reduce){.playground-header .seesaw-bar{transition:none}}