:root {
  --bg: #090b0e;
  --surface: #101419;
  --surface-2: #171c22;
  --line: rgba(255,255,255,.12);
  --text: #f3f6f8;
  --muted: #9aa4af;
  --cyan: #3dd6e8;
  --blue: #4d7cff;
  --red: #ef4444;
  --content: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: Inter, system-ui, sans-serif; line-height: 1.6; }
button, a { font: inherit; }
img, video { display: block; width: 100%; }

.site-header { position: fixed; inset: 0 0 auto; z-index: 20; height: 64px; padding: 0 max(24px, calc((100vw - var(--content))/2)); display: flex; align-items: center; justify-content: space-between; background: rgba(9,11,14,.88); border-bottom: 1px solid var(--line); backdrop-filter: blur(16px); }
.brand { display: flex; align-items: center; gap: 11px; color: var(--text); text-decoration: none; font: 600 12px JetBrains Mono, monospace; }
.brand b { color: #59636e; margin: 0 3px; }
.brand-mark { flex: 0 0 30px; width: 30px; height: 30px; object-fit: contain; }
nav { display: flex; gap: 28px; }
nav a { color: var(--muted); text-decoration: none; font-size: 13px; font-weight: 600; }
nav a:hover { color: var(--cyan); }
.menu-button { display: none; color: var(--text); background: transparent; border: 1px solid var(--line); padding: 7px 10px; }

.hero { min-height: 94vh; position: relative; display: flex; align-items: flex-end; overflow: hidden; border-bottom: 1px solid var(--line); }
.hero-video { position: absolute; inset: 0; height: 100%; object-fit: cover; opacity: .76; }
.hero-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(4,6,8,.94) 0%, rgba(4,6,8,.58) 52%, rgba(4,6,8,.18) 100%), linear-gradient(0deg, rgba(4,6,8,.92), transparent 55%); }
.hero-content { position: relative; width: min(var(--content), calc(100% - 48px)); margin: 0 auto; padding: 170px 0 110px; text-align: center; }
.kicker, .eyebrow { margin: 0 0 16px; color: var(--cyan); font: 600 12px JetBrains Mono, monospace; text-transform: uppercase; letter-spacing: 0; }
h1 { max-width: 940px; margin: 0 auto; font-size: clamp(62px, 10vw, 132px); line-height: .88; letter-spacing: 0; }
.hero-tagline { max-width: 680px; margin: 18px auto 14px; color: #aeb7bf; font-size: 15px; font-weight: 450; line-height: 1.55; }
.hero-tagline::before { content: ""; display: block; width: 36px; margin: 0 auto 14px; border-top: 1px solid rgba(255,255,255,.34); }
.paper-title { max-width: 850px; margin: 22px auto 0; color: #f2f5f7; font-size: clamp(19px, 2vw, 27px); font-weight: 650; line-height: 1.25; }
.paper-title + .hero-tagline { margin-top: 18px; }
.authors { color: var(--muted); font-size: 14px; }
.hero-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-top: 28px; }
.button { display: inline-flex; align-items: center; gap: 9px; min-height: 42px; padding: 0 16px; color: var(--text); text-decoration: none; border: 1px solid var(--line); border-radius: 5px; font-size: 13px; font-weight: 700; }
.button.primary { color: #051013; background: var(--cyan); border-color: var(--cyan); }
.button:hover { transform: translateY(-1px); border-color: var(--cyan); }
.hero-metrics { display: flex; justify-content: center; gap: 44px; margin: 48px 0 0; }
.hero-metrics div { min-width: 112px; }
.hero-metrics dt { font-size: 25px; font-weight: 800; }
.hero-metrics dd { margin: 2px 0 0; color: var(--muted); font: 500 11px JetBrains Mono, monospace; text-transform: uppercase; }
.scroll-cue { position: absolute; left: 50%; bottom: 30px; color: var(--muted); text-decoration: none; font: 500 11px JetBrains Mono, monospace; transform: translateX(-50%); }

.section { width: min(var(--content), calc(100% - 48px)); margin: 0 auto; padding: 112px 0; }
.section + .section { border-top: 1px solid var(--line); }
.section-heading { display: grid; grid-template-columns: 180px minmax(0, 620px); column-gap: 40px; margin-bottom: 50px; opacity: .5; transform: translateY(15px); transition: .5s ease; }
.section-heading.in-view { opacity: 1; transform: none; }
.section-heading .eyebrow { grid-row: 1 / span 2; }
.section-heading h2 { margin: 0; font-size: clamp(34px, 5vw, 62px); line-height: 1.02; letter-spacing: 0; }
.section-heading p:last-child { grid-column: 2; max-width: 630px; color: var(--muted); font-size: 16px; }
.demos .section-heading,
.overview .section-heading,
.pipeline .section-heading,
.results .section-heading,
.citation .section-heading { display: block; max-width: 820px; margin-right: auto; margin-left: auto; text-align: center; }
.demos .section-heading .eyebrow,
.overview .section-heading .eyebrow,
.pipeline .section-heading .eyebrow,
.results .section-heading .eyebrow,
.citation .section-heading .eyebrow { margin-bottom: 18px; }
.demos .section-heading p:last-child,
.overview .section-heading p:last-child,
.pipeline .section-heading p:last-child,
.results .section-heading p:last-child,
.citation .section-heading p:last-child { max-width: 680px; margin: 20px auto 0; }
.figure-button { width: 100%; padding: 0; overflow: hidden; cursor: zoom-in; background: #fff; border: 1px solid var(--line); border-radius: 5px; }
.figure-button img { max-height: 780px; object-fit: contain; }
.capability-strip { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 28px; border: 1px solid var(--line); }
.capability-strip article { display: flex; gap: 18px; padding: 28px; }
.capability-strip article + article { border-left: 1px solid var(--line); }
.capability-strip span { color: var(--cyan); font: 600 11px JetBrains Mono, monospace; }
.capability-strip h3 { margin: 0 0 7px; font-size: 16px; }
.capability-strip p { margin: 0; color: var(--muted); font-size: 13px; }

.scene-gallery { width: min(100%, 820px); margin: 0 auto; }
.scene-stage { position: relative; aspect-ratio: 16 / 8.5; overflow: hidden; background: #0d1116; border: 1px solid var(--line); border-radius: 5px; }
.scene-stage video { height: 100%; object-fit: cover; visibility: hidden; background: #050709; }
.scene-stage video.ready { visibility: visible; }
.scene-video-placeholder { position: absolute; inset: 0; display: grid; place-content: center; gap: 10px; text-align: center; background-color: #11161b; background-image: linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px); background-size: 28px 28px; }
.scene-video-placeholder[hidden] { display: none; }
.scene-video-placeholder span { color: var(--cyan); font: 700 44px JetBrains Mono; }
.scene-video-placeholder b { color: var(--muted); font: 500 12px JetBrains Mono; }
.demo-nav { position: absolute; z-index: 5; top: 50%; width: 42px; height: 42px; padding: 0; display: grid; place-items: center; color: rgba(236,245,249,.9); background: rgba(8,13,17,.62); border: 1px solid rgba(164,184,196,.34); border-radius: 50%; backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); box-shadow: 0 8px 26px rgba(0,0,0,.3); cursor: pointer; transform: translateY(-50%); transition: color .22s, background .22s, border-color .22s, transform .22s; }
.demo-prev { left: 18px; }
.demo-next { right: 18px; }
.demo-nav span { display: block; margin-top: -2px; font: 300 30px/1 Inter, sans-serif; }
.demo-nav:hover { color: #fff; background: rgba(18,39,48,.9); border-color: rgba(69,205,231,.72); transform: translateY(-50%) scale(1.06); }
.demo-nav:active { transform: translateY(-50%) scale(.94); }
.scene-selector { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); margin-top: 10px; border: 1px solid var(--line); overflow-x: auto; }
.scene-selector-item { position: relative; min-width: 150px; border-right: 1px solid var(--line); }
.scene-selector-item:last-child { border-right: 0; }
.scene-selector button { width: 100%; min-width: 0; min-height: 116px; display: flex; align-items: flex-start; gap: 11px; padding: 15px 12px; color: var(--muted); text-align: left; background: var(--surface); border: 0; cursor: pointer; }
.scene-selector button > span { color: #59636e; font: 600 10px JetBrains Mono; }
.scene-selector small { display: block; color: #6f7b86; font: 500 8px JetBrains Mono; text-transform: uppercase; }
.scene-selector b { display: block; margin-top: 4px; color: inherit; font-size: 11px; line-height: 1.25; }
.scene-device { display: block; margin-top: 8px; color: #7d8993; font: 500 8px/1.3 JetBrains Mono; text-transform: uppercase; }
.scene-credit { position: absolute; right: 12px; bottom: 13px; left: 35px; z-index: 1; overflow: hidden; color: #9b8268; font: 500 8px/1.3 JetBrains Mono; text-decoration: none; text-overflow: ellipsis; text-transform: uppercase; white-space: nowrap; }
.scene-credit:hover { color: var(--cyan); text-decoration: underline; }
.scene-selector button.active { color: var(--text); background: #192027; box-shadow: inset 0 -2px var(--cyan); }
.scene-selector button.active > span, .scene-selector button.active small { color: var(--cyan); }

.pipeline-figure img { max-height: 560px; }

.headline-result { max-width: 920px; margin: 0 auto 56px; display: block; }
.headline-result img { max-height: 650px; }
.performance-chart { margin: 0 0 58px; overflow: hidden; background: var(--surface); border: 1px solid var(--line); opacity: .45; transform: translateY(14px); transition: opacity .7s ease, transform .7s ease; }
.performance-chart.in-view { opacity: 1; transform: none; }
.performance-chart > header { display: grid; grid-template-columns: 1fr 1fr; padding: 18px 24px; border-bottom: 1px solid var(--line); }
.performance-chart > header div:last-child { padding-left: 22px; border-left: 1px solid var(--line); }
.performance-chart > header span { display: block; color: var(--cyan); font: 600 9px JetBrains Mono; text-transform: uppercase; }
.performance-chart > header b { font-size: 15px; }
.metric-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.metric-panel { min-width: 0; padding: 20px 16px 16px; }
.metric-panel + .metric-panel { border-left: 1px solid var(--line); }
.metric-label { min-height: 45px; }
.metric-label b { display: block; font-size: 18px; }
.metric-label span { color: #74808a; font: 600 7px JetBrains Mono; }
.bar-group { height: 210px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 4px; align-items: end; }
.bar-item { min-width: 0; display: grid; grid-template-rows: 162px 36px; align-items: end; text-align: center; }
.bar-value { position: absolute; left: 50%; bottom: 6px; z-index: 2; color: #d6dde3; font: 600 9px JetBrains Mono; white-space: nowrap; transform: translateX(-50%); opacity: 0; transition: opacity .35s ease .55s, bottom 1s cubic-bezier(.2,.8,.2,1) .16s; }
.bar-value small { color: #7f8b95; font-size: 7px; }
.bar-track { position: relative; height: 136px; display: flex; align-items: flex-end; justify-content: center; border-bottom: 1px solid #68737d; }
.bar-track i { display: block; width: min(30px, 72%); height: 0; background: var(--bar-color); transition: height 1s cubic-bezier(.2,.8,.2,1); transition-delay: .16s; }
.performance-chart.in-view .bar-track i { height: var(--bar-height); }
.performance-chart.in-view .bar-value { bottom: calc(var(--bar-height) + 6px); opacity: 1; }
.bar-item > span { padding-top: 8px; color: #8d98a2; font: 500 7px/1.15 JetBrains Mono; overflow-wrap: anywhere; }
.dataset-results { display: grid; border-top: 1px solid var(--line); }
.dataset-carousel { min-width: 0; padding: 30px 0 24px; border-bottom: 1px solid var(--line); }
.dataset-carousel-header { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 18px; }
.dataset-carousel-header p, .dataset-context > p { margin: 0 0 5px; color: var(--cyan); font: 500 10px JetBrains Mono; text-transform: uppercase; }
.dataset-carousel-header h3 { margin: 0; font-size: 24px; }
.carousel-index { display: flex; align-items: center; gap: 9px; color: #64717c; font: 600 9px JetBrains Mono; letter-spacing: 0; }
.carousel-index b { color: #dbe5eb; font-size: 16px; font-weight: 500; }
.carousel-index i { width: 34px; height: 1px; background: #3c4852; }
.carousel-index span { color: #65717b; }
.carousel-viewport { min-width: 0; position: relative; overflow: hidden; touch-action: pan-y; }
.carousel-track { display: flex; transition: transform .72s cubic-bezier(.22,.76,.18,1); }
.dataset-slide { flex: 0 0 100%; min-width: 0; display: grid; grid-template-columns: 210px minmax(0, 1fr); gap: 18px; opacity: 1; transition: opacity .34s ease; }
.dataset-slide[aria-hidden="true"] { opacity: .34; }
.dataset-context { padding-right: 16px; }
.carousel-arrow { position: absolute; top: 50%; z-index: 8; width: 44px; height: 44px; padding: 0; display: grid; place-items: center; color: #111920; background: rgba(250,252,253,.96); border: 1px solid #fff; border-radius: 50%; box-shadow: 0 8px 26px rgba(0,0,0,.38), 0 0 0 1px rgba(0,0,0,.12); cursor: pointer; transform: translateY(-50%); transition: color .22s, background .22s, border-color .22s, transform .22s, opacity .22s; }
.carousel-arrow span { display: block; margin-top: -2px; font: 300 30px/1 Inter, sans-serif; }
.carousel-arrow-prev { left: 9px; }
.carousel-arrow-next { right: 9px; }
.carousel-arrow:hover { color: #071217; background: #9ee9f6; border-color: #dffaff; transform: translateY(-50%) scale(1.08); }
.carousel-arrow:active { transform: translateY(-50%) scale(.94); }
.context-rgb { display: grid; grid-template-columns: 1fr 1fr; gap: 5px; margin-top: 18px; }
.context-rgb img { aspect-ratio: 8 / 5; object-fit: cover; border: 1px solid var(--line); }
.context-aux { margin: 8px 0 0; overflow: hidden; background: #11171d; border: 1px solid var(--line); }
.context-aux img { aspect-ratio: 1.55; object-fit: contain; }
.context-aux figcaption { padding: 6px 8px; color: var(--muted); background: var(--surface); border-top: 1px solid var(--line); font: 600 9px JetBrains Mono; text-transform: uppercase; }
.inference-meta { display: flex; align-items: center; gap: 9px; margin-top: 13px; color: #7d8993; }
.inference-meta span { width: 18px; height: 1px; flex: 0 0 auto; background: var(--cyan); }
.inference-meta p { margin: 0; font: 500 8px/1.45 JetBrains Mono; text-transform: uppercase; }
.method-comparison { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.method-comparison figure { min-width: 0; margin: 0; background: var(--surface); border: 1px solid var(--line); }
.method-comparison figcaption { padding: 12px 14px; color: var(--muted); border-top: 1px solid var(--line); font: 600 11px JetBrains Mono; text-align: center; }
.method-comparison figure:last-child figcaption { color: var(--cyan); }
.result-media { min-height: 230px; aspect-ratio: 1.28; display: grid; place-items: center; position: relative; overflow: hidden; background: #11171d; }
.result-media img { width: 100%; height: 100%; object-fit: contain; }
.image-placeholder { color: #7c8793; font: 500 11px JetBrains Mono; }
.carousel-dots { display: flex; justify-content: center; gap: 5px; margin-top: 18px; }
.carousel-dots button { width: 22px; height: 2px; padding: 0; background: #37424b; border: 0; cursor: pointer; transition: width .35s, background .35s; }
.carousel-dots button:hover { background: #76838d; }
.carousel-dots button.active { width: 44px; background: #8edbea; }

.citation-box { position: relative; background: var(--surface); border: 1px solid var(--line); }
pre { overflow-x: auto; margin: 0; padding: 28px; color: #c6d0da; font: 12px/1.7 JetBrains Mono, monospace; }
.copy-button { position: absolute; right: 12px; top: 12px; padding: 7px 10px; color: var(--text); background: var(--surface-2); border: 1px solid var(--line); cursor: pointer; }
footer { width: min(var(--content), calc(100% - 48px)); margin: auto; padding: 30px 0; display: flex; justify-content: space-between; color: var(--muted); border-top: 1px solid var(--line); font-size: 11px; }
.lightbox { width: min(94vw, 1400px); max-width: none; padding: 40px; background: #07090c; border: 1px solid var(--line); }
.lightbox::backdrop { background: rgba(0,0,0,.88); }
.lightbox img { max-height: 86vh; object-fit: contain; }
.lightbox-close { position: absolute; top: 6px; right: 10px; color: var(--text); background: transparent; border: 0; font-size: 28px; cursor: pointer; }

@media (min-width: 1000px) {
  .paper-title { max-width: none; font-size: clamp(19px, 1.6vw, 23px); white-space: nowrap; }
}

@media (max-width: 760px) {
  .site-header { padding: 0 18px; }
  .brand { font-size: 10px; }
  .menu-button { display: block; }
  nav { display: none; position: absolute; top: 64px; left: 0; right: 0; padding: 18px; flex-direction: column; gap: 16px; background: var(--bg); border-bottom: 1px solid var(--line); }
  nav.open { display: flex; }
  .hero { min-height: 820px; }
  .hero-content { width: calc(100% - 36px); padding-bottom: 120px; }
  h1 { max-width: 100%; font-size: clamp(44px, 13vw, 54px); overflow-wrap: anywhere; }
  .hero-tagline { max-width: 520px; font-size: 14px; line-height: 1.55; }
  .hero-actions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); width: 100%; }
  .hero-actions .button { min-width: 0; justify-content: center; padding: 0 10px; }
  .hero-metrics { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; width: 100%; }
  .hero-metrics div { min-width: 0; }
  .hero-metrics dt { font-size: 22px; }
  .hero-metrics dd { font-size: 8px; line-height: 1.35; }
  .scroll-cue { display: none; }
  .section { width: calc(100% - 36px); padding: 76px 0; }
  .section-heading { display: block; }
  .section-heading h2 { margin-bottom: 20px; }
  .capability-strip { grid-template-columns: 1fr; }
  .scene-stage { aspect-ratio: 4 / 3; }
  .scene-selector { grid-template-columns: repeat(6, 170px); }
  .dataset-carousel-header { align-items: center; }
  .carousel-arrow { width: 38px; height: 38px; }
  .carousel-arrow-prev { left: 5px; }
  .carousel-arrow-next { right: 5px; }
  .dataset-slide { grid-template-columns: 1fr; }
  .dataset-context { padding-right: 0; }
  .method-comparison { grid-template-columns: 1fr; }
  .performance-chart > header { grid-template-columns: 1fr; gap: 10px; }
  .performance-chart > header div:last-child { padding: 10px 0 0; border-left: 0; border-top: 1px solid var(--line); }
  .metric-grid { grid-template-columns: 1fr 1fr; }
  .metric-panel:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
  .metric-panel:nth-child(4) { border-top: 1px solid var(--line); }
  .capability-strip article + article { border-left: 0; border-top: 1px solid var(--line); }
  .demo-caption { display: block; }
  .demo-caption p { margin-top: 4px; }
  footer { display: block; }
  footer span { display: block; margin: 5px 0; }
}