:root {
  --paper: #f3f0e8;
  --paper-2: #e9e4d8;
  --ink: #161815;
  --muted: #6d7068;
  --line: rgba(22, 24, 21, 0.16);
  --acid: #c9ff4a;
  --violet: #8e74ff;
  --orange: #ff7d3d;
  --blue: #4169e1;
  --radius: 18px;
  --shell: min(1420px, calc(100vw - 64px));
  --serif: "Newsreader", Georgia, serif;
  --sans: "Manrope", system-ui, sans-serif;
  --mono: "DM Mono", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); -webkit-font-smoothing: antialiased; }
a { color: inherit; }
img, video { display: block; width: 100%; }
button, input { font: inherit; }
::selection { background: var(--acid); color: var(--ink); }

.section-shell { width: var(--shell); margin-inline: auto; }
.scroll-progress { position: fixed; inset: 0 0 auto; z-index: 100; height: 3px; background: transparent; }
.scroll-progress span { display: block; width: 0; height: 100%; background: linear-gradient(90deg, var(--violet), var(--orange)); }

.site-header { position: sticky; top: 0; z-index: 50; height: 72px; padding: 0 32px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 30px; background: color-mix(in srgb, var(--paper) 88%, transparent); backdrop-filter: blur(18px); border-bottom: 1px solid var(--line); }
.wordmark { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 700; letter-spacing: -0.03em; width: max-content; }
.wordmark-mark { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 50%; background: var(--ink); color: var(--acid); font-family: var(--mono); font-size: 11px; letter-spacing: -0.08em; }
.site-header nav { display: flex; gap: 24px; }
.site-header nav a { position: relative; text-decoration: none; color: var(--muted); font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; }
.site-header nav a::after { content: ""; position: absolute; height: 1px; inset: auto 100% -6px 0; background: var(--ink); transition: right 180ms ease; }
.site-header nav a:hover { color: var(--ink); }
.site-header nav a:hover::after { right: 0; }
.header-paper { justify-self: end; text-decoration: none; font-size: 12px; font-weight: 700; border-bottom: 1px solid var(--ink); padding-bottom: 3px; }

.hero { min-height: calc(100vh - 72px); display: grid; grid-template-columns: minmax(400px, 0.85fr) minmax(560px, 1.35fr); align-items: center; gap: clamp(40px, 6vw, 96px); padding-block: 72px 58px; }
.eyebrow, .tiny-label { font-family: var(--mono); text-transform: uppercase; letter-spacing: 0.12em; font-size: 11px; font-weight: 500; }
.eyebrow { display: flex; align-items: center; gap: 9px; margin: 0 0 27px; color: var(--muted); }
.eyebrow span { width: 28px; height: 1px; background: currentColor; }
.hero h1, .display-heading { margin: 0; font-family: var(--serif); font-weight: 400; letter-spacing: -0.055em; line-height: 0.92; }
.hero h1 { font-size: clamp(64px, 6.7vw, 112px); }
.hero h1 em, .display-heading em { font-weight: 400; color: var(--violet); }
.hero-dek { max-width: 650px; margin: 34px 0 22px; color: #444840; font-size: clamp(17px, 1.4vw, 21px); line-height: 1.55; }
.authors { margin: 0 0 30px; color: var(--muted); font-size: 12px; }
.authors span { margin-inline: 7px; }
.hero-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 28px; min-height: 48px; padding: 0 18px; border: 1px solid var(--ink); border-radius: 99px; text-decoration: none; font-size: 12px; font-weight: 700; transition: transform 180ms ease, background 180ms ease, color 180ms ease; }
.button:hover { transform: translateY(-2px); }
.button-dark { background: var(--ink); color: white; }
.button-dark:hover { background: var(--violet); border-color: var(--violet); }
.button-light:hover { background: var(--acid); }
.hero-media { align-self: center; }
.hero-media .compare { box-shadow: 0 28px 80px rgba(42, 38, 31, 0.18); }
.microcopy { margin: 11px 4px 0; color: var(--muted); font-family: var(--mono); font-size: 10px; }

.compare { --position: 50%; position: relative; aspect-ratio: 832 / 480; overflow: hidden; border-radius: var(--radius); background: #090a09; touch-action: pan-y; }
.compare video { position: absolute; inset: 0; height: 100%; object-fit: cover; }
.compare-top { position: absolute; z-index: 2; inset: 0; width: 100%; overflow: hidden; clip-path: inset(0 calc(100% - var(--position)) 0 0); }
.compare-top video { width: 100%; object-position: left center; }
.compare-range { position: absolute; z-index: 5; inset: 0; width: 100%; height: 100%; margin: 0; opacity: 0; cursor: ew-resize; }
.compare-line { position: absolute; z-index: 4; left: var(--position); top: 0; bottom: 0; width: 1px; background: rgba(255,255,255,.75); pointer-events: none; }
.compare-line span { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 44px; height: 44px; display: grid; place-items: center; border-radius: 50%; color: var(--ink); background: var(--acid); box-shadow: 0 7px 25px rgba(0,0,0,.24); font-size: 17px; }
.media-label { position: absolute; z-index: 4; top: 14px; padding: 7px 10px; border-radius: 99px; background: rgba(10,10,10,.72); color: white; backdrop-filter: blur(8px); font-family: var(--mono); text-transform: uppercase; letter-spacing: .08em; font-size: 9px; pointer-events: none; }
.media-label-left { left: 14px; }
.media-label-right { right: 14px; }

.signal-strip { min-height: 140px; display: grid; grid-template-columns: repeat(4, 1fr); border-block: 1px solid var(--line); }
.signal-strip > div { display: flex; align-items: center; justify-content: center; gap: 18px; padding: 25px; border-right: 1px solid var(--line); }
.signal-strip > div:last-child { border: 0; }
.signal-strip strong { font-family: var(--serif); font-size: 52px; font-weight: 400; letter-spacing: -0.06em; color: var(--violet); }
.signal-strip span { color: var(--muted); font-size: 11px; line-height: 1.5; text-transform: uppercase; letter-spacing: .06em; }

.section-index { margin: 0 0 48px; padding-top: 100px; font-family: var(--mono); color: var(--muted); font-size: 10px; text-transform: uppercase; letter-spacing: .13em; }
.section-index-light { color: rgba(255,255,255,.5); }
.manifesto { padding-bottom: 120px; }
.manifesto-grid, .method-heading, .ood-heading, .motion-heading, .benchmark-heading { display: grid; grid-template-columns: 1.25fr .75fr; gap: clamp(40px, 8vw, 130px); align-items: start; }
.display-heading { font-size: clamp(54px, 6.5vw, 104px); }
.manifesto-copy p, .method-heading > p, .ood-heading p, .motion-heading p, .benchmark-heading p, .paper-copy > p { margin: 0 0 20px; color: var(--muted); font-size: 16px; line-height: 1.72; }
.spectrum-card { margin-top: 90px; padding: 34px; border: 1px solid var(--line); border-radius: var(--radius); display: grid; grid-template-columns: .7fr 1.3fr; gap: 70px; background: rgba(255,255,255,.34); }
.spectrum-copy h3 { margin: 12px 0 11px; font-family: var(--serif); font-size: 36px; font-weight: 400; letter-spacing: -.04em; }
.spectrum-copy p, .spectrum-note { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.6; }
.axis-labels { display: flex; justify-content: space-between; margin-bottom: 12px; font-family: var(--mono); text-transform: uppercase; font-size: 9px; letter-spacing: .1em; }
.axis-track { position: relative; height: 7px; border-radius: 99px; background: linear-gradient(90deg, var(--orange), var(--violet), var(--blue)); }
.axis-track::after { content: ""; position: absolute; right: -1px; top: -4px; border-left: 9px solid var(--blue); border-block: 7px solid transparent; }
.axis-stops { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 20px; }
.spectrum-stop { position: relative; display: flex; flex-direction: column; gap: 4px; padding: 0; border: 0; background: transparent; color: var(--muted); text-align: left; cursor: pointer; }
.spectrum-stop:nth-child(2) { text-align: center; align-items: center; }
.spectrum-stop:nth-child(3) { text-align: right; align-items: end; }
.spectrum-stop i { position: absolute; top: -29px; width: 13px; height: 13px; border: 3px solid var(--paper); border-radius: 50%; background: #999; box-shadow: 0 0 0 1px rgba(0,0,0,.2); }
.spectrum-stop strong { color: inherit; font-size: 12px; }
.spectrum-stop small { font-size: 10px; }
.spectrum-stop.active { color: var(--ink); }
.spectrum-stop.active i { background: var(--acid); transform: scale(1.25); }
.spectrum-note { grid-column: 2; padding-top: 8px; border-top: 1px solid var(--line); min-height: 30px; }

.method-section, .ood-section, .benchmark-section, .citation-section { background: var(--ink); color: white; }
.method-section { padding-bottom: 120px; }
.method-heading > p, .ood-heading p, .benchmark-heading p { color: rgba(255,255,255,.62); }
.paper-figure { margin: 70px 0 0; }
.paper-figure img { border-radius: var(--radius); background: white; }
.paper-figure figcaption, .paper-preview figcaption { margin-top: 12px; color: rgba(255,255,255,.48); font-family: var(--mono); font-size: 9px; text-transform: uppercase; letter-spacing: .09em; }
.method-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin-top: 48px; border-block: 1px solid rgba(255,255,255,.15); background: rgba(255,255,255,.15); }
.method-cards article { padding: 34px; background: var(--ink); }
.method-cards article > span, .ood-caption > span, .motion-card > div > span { color: var(--acid); font-family: var(--mono); font-size: 10px; }
.method-cards h3 { margin: 44px 0 14px; font-family: var(--serif); font-size: 31px; font-weight: 400; }
.method-cards p { margin: 0; color: rgba(255,255,255,.55); font-size: 13px; line-height: 1.65; }

.results-section { padding-bottom: 125px; }
.results-heading { display: grid; grid-template-columns: 1.4fr .6fr; align-items: end; gap: 80px; }
.results-heading > p { margin: 0 0 5px; color: var(--muted); font-size: 13px; line-height: 1.65; }
.subsection-heading { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-top: 110px; padding-bottom: 20px; border-bottom: 1px solid var(--line); }
.subsection-heading h3 { margin: 10px 0 0; font-family: var(--serif); font-size: 34px; font-weight: 400; letter-spacing: -.03em; }
.subsection-heading a, .ood-heading a, .motion-heading a { color: var(--muted); font-size: 11px; text-underline-offset: 5px; }
.top-rule { margin-top: 120px; }
.triptych-list { display: grid; }
.triptych { display: grid; grid-template-columns: 52px repeat(3, 1fr); gap: 12px; padding: 20px 0; border-bottom: 1px solid var(--line); }
.sample-number { padding-top: 30px; font-family: var(--mono); color: var(--muted); font-size: 10px; }
.video-cell { position: relative; min-width: 0; overflow: hidden; border-radius: 10px; background: #0b0c0b; }
.video-cell > span { position: absolute; z-index: 2; top: 9px; left: 9px; padding: 5px 8px; border-radius: 99px; color: white; background: rgba(0,0,0,.62); backdrop-filter: blur(6px); font-family: var(--mono); font-size: 8px; text-transform: uppercase; letter-spacing: .08em; }
.video-cell video { aspect-ratio: 832 / 480; object-fit: cover; }
.pair-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 36px 20px; padding-top: 24px; }
.pair-title { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
.pair-title span { color: var(--violet); font-family: var(--mono); font-size: 10px; }
.pair-title p { margin: 0; font-size: 12px; font-weight: 600; }
.pair-videos { display: grid; grid-template-columns: repeat(2, 1fr); gap: 5px; }

.ood-section { padding-bottom: 130px; }
.ood-heading > div { padding-top: 10px; }
.ood-heading a, .motion-heading a { display: inline-block; margin-top: 8px; color: rgba(255,255,255,.72); }
.ood-heading .ugc-inline-link { margin-left: 20px; color: var(--acid); }
.whitebox-list { display: grid; gap: 48px; margin-top: 75px; }
.whitebox-pair-heading { display: flex; justify-content: space-between; align-items: baseline; gap: 20px; margin-bottom: 12px; padding-top: 13px; border-top: 1px solid rgba(255,255,255,.18); }
.whitebox-pair-heading span { font-family: var(--serif); font-size: 24px; letter-spacing: -.02em; }
.whitebox-pair-heading p { margin: 0; color: rgba(255,255,255,.5); font-size: 11px; }
.whitebox-pair-videos { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.whitebox-video { position: relative; min-width: 0; overflow: hidden; border-radius: 10px; background: #111; }
.whitebox-video > span { position: absolute; z-index: 2; top: 10px; left: 10px; padding: 6px 9px; border-radius: 99px; color: #fff; background: rgba(0,0,0,.67); backdrop-filter: blur(6px); font-family: var(--mono); font-size: 9px; text-transform: uppercase; letter-spacing: .06em; }
.whitebox-video video { display: block; width: 100%; aspect-ratio: 832 / 480; object-fit: cover; }

.motion-section { padding-bottom: 125px; }
.motion-heading > div { padding-top: 10px; }
.motion-heading a { color: var(--muted); }
.camera-wall-heading { display: flex; justify-content: space-between; align-items: end; gap: 28px; margin-top: 72px; padding-top: 16px; border-top: 1px solid var(--line); }
.camera-wall-heading span { flex: none; color: var(--ink); font-family: var(--mono); font-size: 10px; letter-spacing: .08em; }
.camera-wall-heading i { padding-inline: 8px; color: var(--muted); font-style: normal; }
.camera-wall-heading p { max-width: 440px; margin: 0; color: var(--muted); font-size: 11px; line-height: 1.55; text-align: right; }
.camera-video-wall { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 8px; margin-top: 15px; }
.camera-tile { position: relative; aspect-ratio: 1280 / 704; min-width: 0; overflow: hidden; border-radius: 6px; background: #151515; color: #fff; isolation: isolate; }
.camera-tile video { display: block; width: 100%; height: 100%; object-fit: cover; }
.camera-tile::after { content: ""; position: absolute; z-index: 1; inset: 53% 0 0; background: linear-gradient(transparent, rgba(0,0,0,.64)); pointer-events: none; }
.camera-tile-meta { position: absolute; z-index: 2; inset: auto 8px 7px; display: flex; justify-content: space-between; gap: 6px; align-items: center; font-family: var(--mono); font-size: 9px; letter-spacing: .02em; pointer-events: none; text-shadow: 0 1px 4px #000; }
.camera-tile-meta span:last-child { opacity: .78; }
.camera-tile-open { position: absolute; z-index: 3; top: 7px; right: 7px; display: grid; place-items: center; width: 25px; height: 25px; border: 1px solid rgba(255,255,255,.55); border-radius: 50%; background: rgba(0,0,0,.35); color: #fff; font-size: 14px; line-height: 1; transition: background 180ms ease, color 180ms ease; }
.camera-tile-open:hover, .camera-tile-open:focus-visible { background: var(--acid); border-color: var(--acid); color: var(--ink); }

.benchmark-section { padding-bottom: 120px; }
.paper-figure-dark img { filter: saturate(.92); }
.benchmark-factors { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 40px; border-block: 1px solid rgba(255,255,255,.16); }
.benchmark-factors article { display: flex; flex-direction: column; gap: 10px; padding: 28px; border-right: 1px solid rgba(255,255,255,.16); }
.benchmark-factors article:last-child { border: 0; }
.benchmark-factors strong { font-family: var(--serif); font-size: 22px; font-weight: 400; }
.benchmark-factors span { color: rgba(255,255,255,.5); font-size: 11px; line-height: 1.55; }

.paper-section { padding-bottom: 125px; }
.paper-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 80px; align-items: center; }
.paper-copy .button { margin-top: 16px; }
.paper-preview { margin: 0; }
.paper-preview img { border-radius: var(--radius); box-shadow: 0 24px 70px rgba(38,33,24,.14); }
.paper-preview figcaption { color: var(--muted); }

.citation-section { padding-bottom: 100px; }
.citation-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 90px; }
.bibtex-wrap { position: relative; margin-top: 100px; }
.bibtex-wrap pre { margin: 0; padding: 36px; overflow: auto; border: 1px solid rgba(255,255,255,.16); border-radius: var(--radius); background: rgba(255,255,255,.04); color: #e7e8e4; font-family: var(--mono); font-size: 12px; line-height: 1.8; }
.copy-button { position: absolute; z-index: 2; top: 14px; right: 14px; padding: 8px 11px; border: 1px solid rgba(255,255,255,.2); border-radius: 99px; background: rgba(0,0,0,.4); color: white; cursor: pointer; font-size: 10px; }
.copy-button:hover { background: var(--acid); color: var(--ink); }
.draft-note { color: rgba(255,255,255,.42); font-size: 10px; line-height: 1.5; }

footer { min-height: 110px; padding: 26px 32px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; border-top: 1px solid var(--line); }
footer p { color: var(--muted); font-size: 11px; }
footer > a:last-child { justify-self: end; color: var(--muted); font-size: 11px; text-underline-offset: 4px; }

.reveal { opacity: 0; transform: translateY(20px); transition: opacity 700ms ease, transform 700ms cubic-bezier(.2,.8,.2,1); transition-delay: var(--delay, 0ms); }
.reveal.visible { opacity: 1; transform: none; }

@media (max-width: 1020px) {
  :root { --shell: min(100% - 40px, 880px); }
  .site-header { grid-template-columns: 1fr auto; padding-inline: 20px; }
  .site-header nav { display: none; }
  .hero { grid-template-columns: 1fr; min-height: 0; }
  .hero-copy { max-width: 760px; }
  .signal-strip { grid-template-columns: repeat(2, 1fr); }
  .signal-strip > div:nth-child(2) { border-right: 0; }
  .signal-strip > div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .manifesto-grid, .method-heading, .ood-heading, .motion-heading, .benchmark-heading, .results-heading, .paper-grid, .citation-grid { grid-template-columns: 1fr; gap: 34px; }
  .spectrum-card { grid-template-columns: 1fr; gap: 45px; }
  .spectrum-note { grid-column: 1; }
  .method-cards { grid-template-columns: 1fr; }
  .triptych { grid-template-columns: 36px repeat(3, 1fr); }
  .camera-video-wall { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .bibtex-wrap { margin-top: 0; }
}

@media (max-width: 720px) {
  :root { --shell: calc(100vw - 28px); --radius: 13px; }
  .site-header { height: 62px; }
  .hero { padding-block: 52px 38px; gap: 44px; }
  .hero h1 { font-size: clamp(54px, 16vw, 78px); }
  .display-heading { font-size: clamp(48px, 14vw, 68px); }
  .hero-dek { font-size: 16px; }
  .signal-strip { min-height: 0; }
  .signal-strip > div { justify-content: flex-start; padding: 22px 18px; }
  .signal-strip strong { font-size: 38px; }
  .section-index { padding-top: 72px; margin-bottom: 34px; }
  .manifesto, .method-section, .results-section, .ood-section, .motion-section, .benchmark-section, .paper-section { padding-bottom: 85px; }
  .spectrum-card { margin-top: 60px; padding: 22px; }
  .spectrum-stop small { display: none; }
  .paper-figure { margin-top: 48px; }
  .method-cards article { padding: 25px 4px; }
  .triptych { grid-template-columns: 1fr; gap: 7px; padding-block: 26px; }
  .sample-number { padding: 0 0 5px; }
  .pair-grid { grid-template-columns: 1fr; }
  .ood-heading .ugc-inline-link { margin-left: 0; }
  .whitebox-list { gap: 32px; margin-top: 55px; }
  .whitebox-pair-heading { align-items: start; flex-direction: column; gap: 3px; }
  .whitebox-pair-heading span { font-size: 19px; }
  .whitebox-pair-videos { gap: 4px; }
  .whitebox-video > span { top: 5px; left: 5px; padding: 4px 5px; font-size: 7px; }
  .subsection-heading { margin-top: 75px; align-items: start; flex-direction: column; }
  .pair-videos { gap: 4px; }
  .camera-wall-heading { align-items: start; flex-direction: column; gap: 8px; margin-top: 52px; }
  .camera-wall-heading p { text-align: left; }
  .camera-video-wall { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px; }
  .benchmark-factors { grid-template-columns: repeat(2, 1fr); }
  .benchmark-factors article:nth-child(2) { border-right: 0; }
  .benchmark-factors article:nth-child(-n+2) { border-bottom: 1px solid rgba(255,255,255,.16); }
  .bibtex-wrap pre { padding: 64px 20px 24px; font-size: 10px; }
  footer { grid-template-columns: 1fr auto; }
  footer p { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .motion-card video { transition: none; }
}