@font-face{font-family:"Linux Biolinum";src:url("assets/fonts/linux-biolinum-regular.ttf") format("truetype");font-style:normal;font-weight:400;font-display:swap}
@font-face{font-family:"Linux Biolinum";src:url("assets/fonts/linux-biolinum-bold.ttf") format("truetype");font-style:normal;font-weight:700;font-display:swap}
:root{--ink:#171d19;--muted:#5e655f;--line:#dce2dc;--green:#426d57;--mint:#f1f6f1;--font:"Linux Biolinum",Georgia,serif;--content:1200px}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;background:#fff;color:var(--ink);font:18px/1.55 var(--font);-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button{font:inherit}
figure,p,h1,h2,h3,h4{margin:0}
img,video{display:block;width:100%;max-width:100%}
a:focus-visible,summary:focus-visible,video:focus-visible,.table-scroll:focus-visible{outline:2px solid var(--green);outline-offset:5px}
.content-width{width:min(var(--content),calc(100% - 80px));margin-inline:auto}
.site-nav{height:62px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:0 40px;position:sticky;top:0;z-index:10;border-bottom:1px solid var(--line);background:#fff}
.wordmark{font-size:25px;font-weight:700;letter-spacing:-.6px}
.nav-links{display:flex;gap:32px;height:100%;align-items:center;font-size:17px}
.nav-links a{display:flex;align-items:center;height:100%;border-bottom:2px solid transparent;padding-top:2px;color:var(--muted)}
.nav-links a:hover,.nav-links a[aria-current]{color:var(--green);border-color:var(--green)}
.hero{text-align:center;padding:67px 0 72px}
h1{font-size:clamp(60px,7vw,88px);font-weight:700;line-height:1.06;letter-spacing:-3px}
.hero-subtitle{font-size:clamp(23px,2.6vw,32px);line-height:1.22;margin-top:20px;color:#414b43}
.section{padding:68px 0 76px}
.section-heading{text-align:center;margin-bottom:38px}
h2{font-size:48px;line-height:1.05;letter-spacing:-1.2px}
.section-heading>p{font-size:19px;color:var(--muted);line-height:1.45;max-width:580px}
.method-section{background:var(--mint);border-block:1px solid #e7ede7}
.method-section h2{color:var(--green)}
.method-layout{max-width:640px;margin-inline:auto}
.method-figure{background:#fff;padding:10px;border:1px solid #e1e7df}
.method-figure img{height:auto}
.method-copy{display:grid;gap:30px}
.method-copy h3{font-size:26px;line-height:1.2;margin-bottom:10px}
.method-copy p{color:#4e5a51;font-size:18px;line-height:1.55}
.results-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:44px 28px}
.video-frame{position:relative;background:#e9ede8;aspect-ratio:16/9;overflow:hidden}
video{height:100%;aspect-ratio:16/9;object-fit:contain;background:#101410}
.video-error{position:absolute;inset:auto 12px 50px;padding:12px;background:#fff;color:var(--ink);font-size:16px}
.video-error a{text-decoration:underline}
.result figcaption{margin-top:14px}
.prompt{font-size:16px;color:#586159;line-height:1.55}
.prompt>span{font-weight:700;color:var(--green);margin-right:7px}
.result-wide{grid-column:1/-1;max-width:960px;width:100%;justify-self:center;margin:10px 0}
.result-wide h3{font-size:28px}
.comparison-section{border-top:1px solid var(--line);background:#fafbf9}
.subsection-title{font-size:31px;line-height:1.2;letter-spacing:-.4px;text-align:center;margin-bottom:28px}
.section-copy{margin:10px 0 25px;color:var(--muted);font-size:18px}
.comparison-grid,.backbone-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px 18px}
.comparison-video figcaption{padding:9px 8px;text-align:center;font-size:19px;line-height:1.3;background:#f0f2ed}
.ours-video figcaption{color:#2f6246;background:#e5efe4;font-weight:700}
.comparison-block>.prompt{margin-top:22px}
.table-heading{margin:40px 0 20px;text-align:center}
.table-heading h4{font-size:24px;line-height:1.2}
.table-heading p{font-size:15px;color:var(--muted);margin-top:6px}
.table-scroll{overflow-x:auto;width:100%;scrollbar-width:thin}
table{width:100%;min-width:870px;border-collapse:collapse;font-size:17px;line-height:1.4;font-variant-numeric:tabular-nums;border-top:2px solid #536353;border-bottom:2px solid #536353}
th,td{padding:10px 9px;text-align:center;white-space:nowrap}
thead th{font-weight:700;font-size:16px}
thead tr:last-child th{border-bottom:1px solid #aebcad;padding-top:5px}
thead th[rowspan]{border-bottom:1px solid #aebcad}
tbody th{text-align:left;font-weight:400}
tbody tr.ours th{font-weight:700;color:#315e43}
tbody tr.group-start>*{border-top:1px solid #aebcad}
tbody tr:hover{background:#edf2ea}
.best{font-weight:700;background:#d7ebc5;padding:3px 5px;margin:-3px -5px}
abbr[title]{text-decoration:none;cursor:help}
.table-note{margin-top:13px;font-size:15px;line-height:1.5;color:var(--muted)}
.metric-key{margin-top:13px;font-size:15px;color:var(--muted)}
.metric-key summary{cursor:pointer;color:var(--green);width:fit-content}
.metric-key p{max-width:950px;margin-top:10px}
.backbone-block{margin-top:64px;padding-top:56px;border-top:1px solid var(--line)}
.backbone-column h4{text-align:center;font-size:23px;font-weight:700;margin-bottom:15px}
.backbone-column .comparison-video+.comparison-video{margin-top:18px}
footer{padding:27px 0;display:flex;justify-content:space-between;color:var(--muted);font-size:16px}
footer>span{font-weight:700}
footer a:hover{color:var(--green)}
.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}
.skip-link{position:fixed;left:16px;top:-80px;background:#fff;padding:10px 20px;z-index:20;border:1px solid var(--green)}
.skip-link:focus{top:10px}
@media(min-width:1500px){.content-width{width:min(1280px,calc(100% - 120px))}}
@media(max-width:1000px){.method-layout{gap:30px}.method-copy{gap:20px}.method-copy h3{font-size:23px}.method-copy p{font-size:17px}.table-heading{display:block}.table-heading p{margin-top:7px}.section-heading>p{max-width:450px}.comparison-video figcaption{font-size:17px}}
@media(max-width:700px){.content-width{width:calc(100% - 36px)}.site-nav{height:58px;padding:0 18px}.wordmark{font-size:23px}.nav-links{gap:18px;font-size:15px}.hero{padding:48px 0 50px}h1{font-size:62px;letter-spacing:-2px}.hero-subtitle{font-size:24px;margin-top:16px}.section{padding:42px 0 46px}.section-heading{display:block;margin-bottom:28px}h2{font-size:39px}.section-heading>p{font-size:17px;margin-top:14px}.method-layout{grid-template-columns:1fr;gap:28px}.method-figure{max-width:480px;margin:auto;padding:8px}.method-copy{gap:23px}.results-grid{grid-template-columns:1fr;gap:32px}.result-wide{margin:0}.result h3,.result-wide h3{font-size:24px;margin-top:13px}.prompt{font-size:16px}.comparison-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px 12px}.subsection-title{font-size:28px}.comparison-video figcaption{font-size:16px;padding:8px 4px}.backbone-grid{grid-template-columns:1fr;gap:30px}.backbone-column h4{text-align:left;font-size:24px}.backbone-column{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 12px}.backbone-column h4{grid-column:1/-1}.backbone-column .comparison-video+.comparison-video{margin-top:0}.backbone-block{margin-top:42px;padding-top:38px}.table-heading{margin-top:30px}table{font-size:16px}th,td{padding:9px 8px}.section-copy{font-size:17px}}
@media(max-width:360px){h1{font-size:52px;letter-spacing:-1.8px}.site-nav{padding:0 12px;gap:12px}.nav-links{gap:10px;font-size:14px}.wordmark{font-size:19px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}


.authors{display:flex;flex-wrap:wrap;justify-content:center;gap:7px 22px;max-width:1050px;margin:30px auto 0;font-size:20px;line-height:1.5}
.authors span,.affiliations span,.contributions span{white-space:nowrap}
.hero sup{font-size:.65em;line-height:0;position:relative;vertical-align:super;margin-left:2px}
.affiliations{display:flex;flex-wrap:wrap;justify-content:center;gap:5px 19px;max-width:1050px;margin:18px auto 0;font-size:16px;line-height:1.6;color:var(--muted)}
.contributions{display:flex;flex-wrap:wrap;justify-content:center;gap:4px 18px;margin-top:12px;font-size:14px;color:var(--muted)}
.method-caption{text-align:center;color:var(--muted);font-size:17px;line-height:1.5;margin-top:22px}
@media(max-width:700px){.authors{font-size:17px;gap:5px 14px;margin-top:26px}.affiliations{font-size:14px;gap:4px 13px;margin-top:17px}.contributions{font-size:12px;gap:4px 12px}.method-caption{font-size:16px}.hero{padding-bottom:42px}}

/* Project navigation and resource buttons mirror the reference page. */
.nav-links{justify-self:center}
.nav-actions{justify-self:end;display:flex;align-items:center}
.nav-resource{display:inline-flex;align-items:center;gap:7px;padding:0;border:0;background:none;color:var(--ink);font:700 16px/1 var(--font);cursor:pointer}
.nav-resource svg,.button svg{width:17px;height:17px;flex-shrink:0}
.nav-resource:disabled{cursor:default}
.hero-actions{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:8px;margin-top:22px}
.button{min-height:38px;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:9px 15px;border:1px solid var(--ink);border-radius:4px;font:700 15px/1 var(--font);cursor:pointer;transition:transform 160ms ease,background-color 160ms ease}
.button-primary{color:#fff;background:var(--ink)}
.button-secondary{color:var(--ink);background:#fff}
.button:hover:not(:disabled){transform:translateY(-1px)}
.button:disabled{cursor:default}
.button:focus-visible,.nav-resource:focus-visible{outline:2px solid var(--green);outline-offset:5px}
@media(max-width:600px){.site-nav{height:92px;grid-template-columns:1fr 1fr;grid-template-rows:48px 44px;gap:0;padding:0 18px}.wordmark{grid-column:1;grid-row:1}.nav-actions{grid-column:2;grid-row:1}.nav-links{grid-column:1/-1;grid-row:2;gap:28px;font-size:16px}.nav-resource{font-size:15px}html{scroll-padding-top:110px}.hero-actions{margin-top:20px}}