:root{--ink:#17201d;--muted:#64716b;--line:#dfe5e1;--soft:#f3f6f4;--accent:#266f57;--accent-bg:#edf6f1;--radius:7px}
*{box-sizing:border-box}
body{margin:0;background:#fff;color:var(--ink);font-family:Arial,Helvetica,sans-serif;font-size:16px;line-height:1.4}
button,select,input{font:inherit}
button,select{color:inherit}
button{cursor:pointer}
button:disabled{opacity:.35;cursor:default}
button,select{border:1px solid var(--line);background:white;border-radius:var(--radius)}
button:hover:not(:disabled){background:var(--soft)}
button:focus-visible,select:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #73a992;outline-offset:3px}
.shell{max-width:1620px;margin:0 auto;padding:0 36px 24px}
.page-header{display:flex;align-items:center;justify-content:space-between;height:83px;border-bottom:1px solid var(--line);gap:20px}
.brand{display:flex;align-items:center;gap:20px;color:var(--muted);font-size:17px}
.wordmark{font:italic bold 34px Georgia,'Times New Roman',serif;color:var(--ink);letter-spacing:-1px}
.header-divider{height:23px;width:1px;background:var(--line)}
.viewer-guide{margin-top:20px;padding:16px 20px;background:#f6f7f8;border:1px solid #d9dfe3;border-radius:var(--radius);font-size:16px;line-height:1.6}
.viewer-guide h2{margin:0 0 7px;font-size:20px;line-height:1.3;font-weight:700}
.viewer-guide p{margin:0}
.guide-controls{display:flex;flex-wrap:wrap;align-items:center;gap:8px 25px;list-style:none;padding:0;margin:13px 0 0;font-size:15px}
.guide-controls li{white-space:nowrap}
.guide-controls strong{font-weight:600}
.collection-note{font-size:14px;color:var(--muted);white-space:nowrap}
.viewer-toolbar{display:flex;justify-content:space-between;align-items:end;gap:20px;padding:22px 0 18px}
.dataset-tabs{display:flex;gap:6px}
.dataset-tabs button{padding:10px 15px;white-space:nowrap;font-weight:600;border-color:transparent}
.dataset-tabs button[aria-pressed=true]{background:var(--ink);color:white}
.dataset-tabs span{font-size:13px;opacity:.65;margin-left:7px;font-weight:400}
.filters{display:flex;gap:14px}
.filters label{display:flex;flex-direction:column;gap:5px;color:var(--muted);font-size:13px}
select{padding:8px 32px 8px 10px;font-size:15px;min-height:35px}
.filters select{min-width:139px;color:var(--ink)}
.scene-heading{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:5px 0 20px}
.scene-heading>div:first-child{display:flex;align-items:baseline;gap:11px;min-width:0}
.scene-number{font-size:15px;color:var(--muted);font-variant-numeric:tabular-nums}
h1{font-size:28px;line-height:1.3;margin:0;font-weight:600;letter-spacing:-.4px}
.scene-context{display:flex;gap:9px;color:var(--muted);font-size:14px;white-space:nowrap}
.dot{opacity:.5}
.transport{display:flex;align-items:center;gap:13px;background:var(--soft);border:1px solid var(--line);border-radius:var(--radius);padding:10px 13px;margin-bottom:19px}
.primary{background:var(--ink);color:#fff;border-color:var(--ink);min-width:105px;padding:9px 13px;display:flex;gap:9px;align-items:center;justify-content:center}
.primary:hover:not(:disabled){background:#31453a}
.play-icon{font-size:12px;width:11px;text-align:center}
.quiet{font-size:28px;background:transparent;border:0;width:28px;padding:0;line-height:1}
.master-progress{display:flex;align-items:center;gap:12px;flex:1;min-width:80px}
.master-progress output{font-size:14px;min-width:95px;font-variant-numeric:tabular-nums;text-align:right;color:var(--muted)}
input[type=range]{width:100%;min-width:0;cursor:pointer;accent-color:var(--accent);height:18px;margin:0}
input[type=checkbox]{accent-color:var(--accent)}
.speed-switch{display:flex;border:1px solid var(--line);border-radius:6px;padding:2px;gap:2px;background:white}
.speed-switch button{border:0;background:none;padding:5px 9px;border-radius:4px;font-size:14px}
.speed-switch button[aria-pressed=true]{background:var(--ink);color:white}
.sync-toggle{white-space:nowrap;display:flex;align-items:center;gap:5px;font-size:14px}
#status{display:none;color:#a44431;border:1px solid #ecc3ba;background:#fff6f3;padding:8px 12px;margin-bottom:15px;border-radius:6px}
#status:not(:empty){display:block}
.comparison{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.method-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px}
.method-name{font-size:20px;font-weight:600}
.method-card[data-method=mc] .method-name{color:var(--accent)}
.score{font-size:14px;color:var(--muted);font-variant-numeric:tabular-nums}
.score strong{font-size:18px;font-weight:500;color:var(--ink);margin-left:5px}
.method-card[data-method=mc] .score strong{color:var(--accent)}
.video-wrap{position:relative;background:#e9eeeb;border-radius:5px;overflow:hidden}
.video-wrap video{width:100%;height:100%;object-fit:contain;display:block;cursor:pointer}
.video-expand{position:absolute;right:7px;bottom:7px;background:#fffdf1e8;border:0;width:28px;height:27px;font-size:20px;opacity:0;transition:opacity .12s}
.video-wrap:hover .video-expand,.video-expand:focus-visible{opacity:1}
.video-state{position:absolute;left:10px;bottom:9px;font-size:13px;color:white;padding:3px 7px;background:#17201da6;border-radius:4px;pointer-events:none}
.video-state:empty{display:none}
.local-transport{display:flex;align-items:center;gap:8px;margin:9px 0 18px}
.local-play{border:0;padding:0;background:transparent;width:19px;min-width:19px;font-size:12px;height:22px}
.local-transport output{font-size:13px;color:var(--muted);min-width:37px;text-align:right;font-variant-numeric:tabular-nums}
.local-transport input[type=range]{height:12px}
.pair-grid{display:grid;grid-template-columns:1fr 1fr;gap:9px}
.pair-button{display:block;width:100%;border:0;padding:0;background:none;text-align:left;border-radius:4px}
.pair-button:hover:not(:disabled){background:none}
.pair-button img{width:100%;object-fit:contain;display:block;border-radius:4px;background:var(--soft);outline:1px solid #00000008}
.pair-button:hover img{outline:2px solid #8eb8a5}
.frame-label{display:flex;justify-content:space-between;gap:5px;font-size:13px;color:var(--muted);margin-bottom:6px}
.frame-label time{font-variant-numeric:tabular-nums;color:#7b8780}
.pagination{display:flex;align-items:center;justify-content:space-between;gap:20px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-top:25px;padding:14px 0}
.page-button{padding:9px 14px;white-space:nowrap}
.scene-picker{display:flex;align-items:center;justify-content:center;gap:10px;min-width:0}
.scene-picker label{color:var(--muted);font-size:14px}
.scene-picker select{width:300px;max-width:40vw}
#page-count{font-variant-numeric:tabular-nums;font-size:14px;color:var(--muted);min-width:42px;white-space:nowrap}
.notes{font-size:13px;color:var(--muted);margin:13px 0 0}
details{margin-top:15px;font-size:14px;color:var(--muted);max-width:1100px}
summary{cursor:pointer;width:max-content}
#prompt-content{padding:2px 0 0 15px}
#prompt-content p{margin:8px 0}
dialog{width:min(1350px,95vw);max-height:94vh;border:1px solid var(--line);border-radius:10px;padding:22px;color:var(--ink)}
dialog::backdrop{background:#0b1613ae}
.dialog-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:18px}
.dialog-heading h2{font-size:21px;margin:0;font-weight:600}
.dialog-heading button{font-size:28px;border:0;width:32px;height:32px;padding:0}
.enlarged-pair{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.enlarged-pair figure{margin:0;min-width:0}
.enlarged-pair img{width:100%;display:block}
.enlarged-pair figcaption{font-size:15px;color:var(--muted);margin-bottom:7px}
@media(min-width:1700px){.shell{max-width:1740px}.page-header{height:90px}}
@media(max-width:1000px){.shell{padding:0 20px 20px}.scene-heading{align-items:start}.scene-context{flex-wrap:wrap;justify-content:flex-end;white-space:normal;max-width:45%}.comparison{gap:12px}.transport{gap:9px}.master-progress output{display:none}.filters{gap:8px}.scene-picker select{max-width:35vw}.method-name{font-size:17px}}
@media(max-width:720px){.shell{padding:0 13px 20px}.page-header{height:69px}.brand{gap:12px;font-size:14px}.wordmark{font-size:29px}.collection-note{display:none}.viewer-toolbar{align-items:stretch;flex-direction:column;gap:14px;padding-top:15px}.dataset-tabs button{flex:1;padding:9px 10px}.filters{justify-content:space-between}.filters label{width:calc(50% - 6px)}.filters select{width:100%;min-width:0}.scene-heading{flex-direction:column;gap:7px;padding-bottom:15px}.scene-context{max-width:none;justify-content:flex-start;padding-left:31px}.scene-heading h1{font-size:24px}.transport{flex-wrap:wrap}.master-progress{order:4;flex-basis:100%;padding-top:3px}.master-progress output{display:block}.speed-switch{margin-left:auto}.sync-toggle{font-size:13px}.comparison{grid-template-columns:1fr;gap:26px}.method-heading{margin-bottom:8px}.method-name{font-size:20px}.local-transport{margin-bottom:14px}.pair-grid{gap:12px}.pagination{gap:7px}.page-button{font-size:14px;padding:8px}.scene-picker{gap:7px}.scene-picker label{display:none}.scene-picker select{max-width:37vw;font-size:14px;width:210px;padding-left:6px;padding-right:20px}#page-count{font-size:13px;min-width:35px}.enlarged-pair{grid-template-columns:1fr}dialog{padding:15px}}

.filters{flex:1;min-width:0;justify-content:flex-end}
.filters label{min-width:0}
.filters .scene-control{flex:1;max-width:460px}
.filters .scene-control select{width:100%;min-width:0;text-overflow:ellipsis}
#page-count{font-size:15px}
kbd{display:inline-block;font:inherit;font-weight:500;border:1px solid #d0d7d3;border-radius:4px;padding:0 6px;background:#fff}
@media(max-width:1000px){.viewer-toolbar{flex-wrap:wrap}.filters{flex-basis:100%}.filters .scene-control{max-width:none}}
@media(max-width:720px){.filters{flex-direction:column;gap:12px}.filters label{width:100%}.filters .scene-control{width:100%;max-width:none;flex:auto}.scene-context{padding-left:0}.scene-heading>div:first-child{gap:8px}.brand{font-size:15px}.viewer-guide{padding:14px 15px;font-size:15px}.guide-controls{gap:8px 18px;font-size:14px}}