:root{--paper:#f5f6f0;--white:#fff;--ink:#132f30;--muted:#687b79;--line:#d8e0d8;--accent:#bbf76a;--teal:#127d6c;--dark:#102b2c;--radius:14px;font-family:Inter,"Segoe UI",Arial,sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button,a,input,select{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.5}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #28a88d;outline-offset:4px}button{color:inherit}a:hover{text-decoration:none}p{line-height:1.7}h1,h2,h3,p{margin-top:0}.skip{position:absolute;top:-60px;left:20px;z-index:10;padding:12px;background:white}.skip:focus{top:10px}.site-header{height:88px;max-width:1512px;margin:auto;padding:0 5%;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;font-size:18px;font-weight:800;letter-spacing:-.7px;white-space:nowrap}.brand-icon{display:grid;place-items:center;width:32px;height:32px;color:var(--accent);background:var(--ink);border-radius:9px;margin-right:12px;letter-spacing:0;font-weight:600}.brand-slash{font-weight:400;color:var(--teal);margin:0 5px}.brand small{font-size:10px;letter-spacing:1px;align-self:flex-start;margin:6px 0 0 5px}.site-header nav{display:flex;align-items:center;gap:30px;font-size:13px}.site-header nav>a[aria-current]{text-decoration:underline;text-underline-offset:8px}.nav-cta{border:1px solid var(--ink);padding:11px 18px;border-radius:30px}.nav-cta:hover{background:var(--ink);color:white}.nav-cta span{margin-left:18px}.wrap{max-width:1380px;padding:0 36px;margin:auto}.intro{padding:66px 0 52px;display:grid;grid-template-columns:1.25fr 1fr;align-items:end;gap:80px}.eyebrow{font-size:10px;font-weight:700;letter-spacing:1.6px;margin-bottom:24px;display:flex;align-items:center;gap:8px}.dot{width:6px;height:6px;background:var(--teal);border-radius:100%;display:inline-block}h1{font-size:clamp(40px,4.7vw,68px);font-weight:500;letter-spacing:-3.8px;line-height:1.02;margin-bottom:0}h1 em{font-family:Georgia,serif;font-weight:400;color:var(--teal)}.intro-note{max-width:365px;justify-self:end;font-size:14px}.intro-note p{color:var(--muted);margin-bottom:18px}.text-link{font-size:13px;font-weight:600;border-bottom:1px solid var(--ink);padding-bottom:5px}.text-link span{margin-left:30px}.section-line{border-top:1px solid var(--line);padding:18px 0;display:flex;justify-content:space-between;font-size:10px;letter-spacing:1px}.section-line strong{color:var(--teal);margin-right:12px}.muted{color:var(--muted)}.demo-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:22px;align-items:start}.video-shell{background:var(--dark);border-radius:var(--radius);overflow:hidden;box-shadow:0 16px 38px #102b2c13}video{display:block;width:100%;background:#18212c;aspect-ratio:1280/674}.caption-bar{padding:19px 22px;display:flex;gap:17px;min-height:100px;align-items:center;color:#eaf4ef}.caption-index{color:var(--accent);font-size:10px;letter-spacing:1px;white-space:nowrap}.caption-bar p{margin:0;font-size:14px;line-height:1.55}.video-toolbar{display:flex;align-items:center;gap:13px;padding-top:16px;flex-wrap:wrap}.caption-label{font-size:11px;color:var(--muted)}.segmented{display:inline-flex;background:#e8ece4;border-radius:6px;padding:3px}.segmented button{border:0;background:transparent;padding:6px 10px;font-size:11px;border-radius:4px}.segmented button[aria-pressed=true]{background:var(--white);box-shadow:0 1px 4px #0001}.quiet-button{font-size:11px;border:0;background:none;color:var(--muted);padding:8px 3px}.quiet-button:hover{color:var(--teal)}#download-subtitles{margin-left:auto}.video-note{font-size:11px;color:var(--muted);margin:14px 0 0;max-width:680px}.chapters-panel{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fafbf6}.chapters-heading{display:flex;justify-content:space-between;padding:17px;font-size:11px;border-bottom:1px solid var(--line)}.chapters{padding:7px}.chapter{width:100%;display:grid;grid-template-columns:24px 1fr 33px;gap:8px;text-align:left;align-items:center;background:none;border:0;border-radius:8px;padding:13px 10px;font-size:11px;line-height:1.35;margin:2px 0}.chapter .chapter-no,.chapter time{color:#889894;font-size:10px}.chapter.active{background:var(--dark);color:white}.chapter.active .chapter-no{color:var(--accent)}.chapter.active time{color:#b5c9c5}.chapter:not(.active):hover{background:#e8ede4}.try-band{margin:66px 0 44px;padding:42px 46px;background:#e8efdf;display:flex;justify-content:space-between;gap:40px;border-radius:var(--radius)}.try-band .eyebrow{margin-bottom:20px;color:var(--teal)}h2{font-size:40px;font-weight:500;letter-spacing:-1.8px;line-height:1.1;margin-bottom:18px}.try-band p:not(.eyebrow){font-size:13px;max-width:460px;color:var(--muted);margin-bottom:0}.try-band-right{display:flex;flex-direction:column;justify-content:center;gap:18px;align-items:flex-start}.primary-link,.primary-button{display:inline-flex;align-items:center;justify-content:space-between;gap:35px;border:0;border-radius:7px;padding:16px 22px;background:var(--dark);color:var(--white);font-size:13px;font-weight:600}.primary-link:hover,.primary-button:hover{background:#20514c}.about-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:50px;padding:8px 0 52px}.about-strip h3{font-size:13px;font-weight:600;margin-bottom:12px}.about-strip p{color:var(--muted);font-size:12px;margin:0}.site-footer{border-top:1px solid var(--line);max-width:1380px;margin:auto;padding:26px 36px;display:flex;justify-content:space-between;gap:20px;font-size:10px;color:var(--muted)}.site-footer a{text-decoration:underline;text-underline-offset:3px}
/* Working research app */
.app-wrap{max-width:1512px;margin:auto;padding:36px 5% 55px}.app-heading{display:flex;justify-content:space-between;align-items:end;margin-bottom:26px;gap:30px}.app-heading h1{font-size:39px;letter-spacing:-1.8px;margin-bottom:9px}.app-heading .eyebrow{margin-bottom:15px}.app-heading p{font-size:13px;color:var(--muted);margin:0}.local-badge{font-size:10px;border:1px solid var(--line);border-radius:30px;padding:9px 13px;display:flex;align-items:center;gap:7px;white-space:nowrap}.app-layout{display:grid;grid-template-columns:255px minmax(0,1fr);gap:24px}.settings-panel{border:1px solid var(--line);border-radius:var(--radius);background:#fafbf7;align-self:start;padding:23px 20px}.panel-number{font-size:10px;color:var(--teal);letter-spacing:1px;display:block;margin-bottom:8px}.settings-panel h2{font-size:19px;letter-spacing:-.4px;margin-bottom:18px}.upload-control{position:relative;display:block;width:100%;padding:20px 12px;border:1px dashed #94b4a9;border-radius:9px;background:white;text-align:center;font-size:12px;line-height:1.6;cursor:pointer}.upload-control:hover,.upload-control.dragover{background:#eaf4de;border-color:var(--teal)}.upload-control .upload-icon{display:block;font-size:22px;font-weight:300;color:var(--teal);margin-bottom:5px}.upload-control small{display:block;font-size:10px;color:var(--muted)}.upload-control:focus-within{outline:3px solid var(--teal);outline-offset:3px}.upload-control input{position:absolute;inset:0;opacity:0;width:100%;cursor:pointer}.sample-label{display:block;font-size:10px;color:var(--muted);margin:19px 0 10px}.samples{display:grid;grid-template-columns:repeat(5,1fr);gap:5px}.sample{padding:0;border:2px solid transparent;border-radius:6px;overflow:hidden;background:var(--line)}.sample img{display:block;width:100%;aspect-ratio:1;object-fit:cover}.sample.active{border-color:var(--teal)}.file-info{font-size:10px;margin:10px 0 22px;color:var(--muted);overflow-wrap:anywhere}.setting-row{display:flex;justify-content:space-between;gap:5px;font-size:11px;margin-bottom:12px}.setting-row output{font-size:11px;font-variant-numeric:tabular-nums;background:#e4efde;padding:2px 7px;border-radius:4px;color:var(--teal)}input[type=range]{width:100%;accent-color:var(--teal);margin:0}.range-labels{display:flex;justify-content:space-between;color:var(--muted);font-size:9px;margin:5px 0 13px}.setting-hint{font-size:10px;color:var(--muted);line-height:1.6;margin-bottom:19px}.run-button{width:100%;background:var(--accent);color:var(--ink);padding:14px 13px;gap:10px}.run-button:hover{background:#a6e64d}.run-status{font-size:11px;line-height:1.5;min-height:34px;margin:12px 0 0;color:var(--muted)}.run-status.error{color:#b64232}.model-footnote{border-top:1px solid var(--line);margin-top:20px;padding-top:14px;font-size:10px;line-height:1.8;color:var(--muted)}.model-footnote strong{color:var(--ink);font-weight:600}.image-views{display:grid;grid-template-columns:1fr 1fr;gap:16px}.image-card{border-radius:var(--radius);border:1px solid var(--line);background:white;overflow:hidden}.image-card-head{padding:14px 16px;display:flex;justify-content:space-between;align-items:center;font-size:10px;letter-spacing:.7px;border-bottom:1px solid var(--line)}.image-card-head span{color:var(--muted);font-size:9px;letter-spacing:0}.image-stage{min-height:270px;aspect-ratio:1.15;display:flex;align-items:center;justify-content:center;background:#142425;padding:12px;position:relative}.image-stage canvas{display:block;max-width:100%;max-height:100%;object-fit:contain;width:100%;height:100%}.image-stage .placeholder{position:absolute;color:#9caeaa;text-align:center;font-size:12px;line-height:1.9;max-width:200px}.placeholder-symbol{display:block;font-size:34px;color:#5d7770;margin-bottom:10px}.results-toolbar{display:flex;justify-content:space-between;gap:15px;align-items:center;padding:18px 0 15px;flex-wrap:wrap}.results-summary{display:flex;align-items:center;gap:14px;font-size:11px}.results-summary strong{font-weight:600}.timing{font-size:10px;color:var(--muted);padding-left:14px;border-left:1px solid var(--line)}.export-buttons{display:flex;gap:7px;flex-wrap:wrap}.export-buttons button{border:1px solid var(--line);background:var(--white);padding:8px 10px;border-radius:6px;font-size:10px}.export-buttons button:hover:enabled{border-color:var(--teal)}.table-shell{background:var(--white);border:1px solid var(--line);border-radius:10px;overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:11px;text-align:left;white-space:nowrap}th{font-weight:500;font-size:9px;letter-spacing:.4px;color:var(--muted);background:#f1f4ec}th,td{padding:13px 15px;border-bottom:1px solid #edf0e9}tbody tr:last-child td{border:0}.empty-row td{font-size:11px;color:var(--muted);padding:24px;text-align:center}.result-notice{font-size:11px;line-height:1.7;color:var(--muted);margin:15px 0 0}.research-note{border-left:3px solid #bdccaa;background:#edf1e6;padding:13px 18px;color:#627065;font-size:11px;margin-top:25px;line-height:1.6}.research-note strong{font-weight:600;color:var(--ink)}.privacy-note{font-size:10px;color:var(--muted);margin-top:12px;line-height:1.7}.app-help{margin-top:25px;border-top:1px solid var(--line);padding-top:15px;font-size:11px;color:var(--muted)}.app-help summary{cursor:pointer;color:var(--ink)}.app-help p{margin:12px 0 0;max-width:750px}.app-help a{text-decoration:underline}.spinner{display:inline-block;width:12px;height:12px;border:2px solid #62827155;border-top-color:var(--ink);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}
@media(min-width:1500px){.demo-layout{grid-template-columns:minmax(0,1fr) 290px}.chapter{padding:15px 10px}}@media(max-width:1000px){.intro{gap:30px}.demo-layout{grid-template-columns:1fr}.chapters{display:grid;grid-template-columns:1fr 1fr}.chapters-heading{padding:14px 17px}.chapter{padding:11px 10px}.app-layout{grid-template-columns:220px minmax(0,1fr);gap:18px}.settings-panel{padding:19px 15px}.image-stage{min-height:180px}.image-card-head{padding:12px;font-size:9px}.site-header nav{gap:18px}.about-strip{gap:25px}.local-badge{display:none}}@media(max-width:700px){.site-header{height:72px;padding:0 20px}.brand{font-size:15px}.brand-icon{width:27px;height:27px;margin-right:8px}.site-header nav{gap:12px;font-size:11px}.site-header nav>a:first-child{display:none}.nav-cta{padding:9px 13px}.nav-cta span{margin-left:8px}.wrap{padding:0 20px}.intro{padding:42px 0 32px;grid-template-columns:1fr;gap:25px}.eyebrow{font-size:8px;letter-spacing:1px;margin-bottom:20px}h1{font-size:44px;letter-spacing:-2.5px}.intro-note{justify-self:start;max-width:100%;font-size:13px}.section-line{font-size:8px;letter-spacing:.6px}.demo-layout{gap:18px}.caption-bar{padding:15px;gap:12px;min-height:115px}.caption-bar p{font-size:12px}.caption-index{font-size:8px}.video-toolbar{gap:8px}.quiet-button{font-size:10px}#download-subtitles{margin-left:0}.chapters{grid-template-columns:1fr 1fr}.chapter{grid-template-columns:17px 1fr;gap:4px;padding:12px 7px;font-size:10px}.chapter time{display:none}.try-band{padding:30px 25px;margin:38px 0 32px;flex-direction:column;gap:25px}h2{font-size:34px}.about-strip{grid-template-columns:1fr;gap:25px;padding-bottom:35px}.site-footer{padding:25px 20px;flex-wrap:wrap;gap:12px;font-size:9px}.app-wrap{padding:30px 20px}.app-heading h1{font-size:34px}.app-heading p{font-size:12px}.app-layout{grid-template-columns:1fr}.settings-panel{padding:20px}.settings-panel h2{margin-bottom:14px}.upload-control{padding:13px}.upload-control .upload-icon{display:none}.samples{max-width:270px}.sample-label{margin-top:13px}.file-info{margin-bottom:18px}.model-footnote{display:none}.image-views{gap:10px}.image-stage{min-height:155px;padding:5px}.image-card-head{font-size:8px;padding:11px 9px}.image-card-head span{display:none}.image-stage .placeholder{font-size:10px;max-width:120px}.placeholder-symbol{font-size:24px}.results-toolbar{gap:12px}.results-summary{font-size:10px}.export-buttons button{font-size:9px}.table-shell{max-width:calc(100vw - 40px)}th,td{padding:11px;font-size:9px}.research-note{margin-top:18px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}

/* Teaching guide for the research workflow. */
.teaching-guide{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;margin:0 0 24px;padding:20px 24px;border:1px solid var(--line,#d9e2dc);border-radius:14px;background:#f6faf5}.teaching-guide>div{display:grid;grid-template-columns:28px 1fr;gap:4px 10px}.teaching-guide span{grid-row:1/3;color:#55766c;font-size:12px;font-weight:700;padding-top:2px}.teaching-guide strong{font-size:13px;color:#173e36}.teaching-guide p{margin:0;color:#53685f;font-size:12px;line-height:1.6}@media(max-width:760px){.teaching-guide{grid-template-columns:1fr;gap:16px;padding:18px}}