:root {
  --ink: #272523;
  --ink-soft: #4b4743;
  --paper: #fbf9f6;
  --paper-deep: #f4eee9;
  --white: #ffffff;
  --peach: #f28b62;
  --peach-dark: #c85b36;
  --peach-pale: #ffd8c6;
  --teal: #128c84;
  --teal-pale: #cfefeb;
  --muted: #77716b;
  --line: #e5ddd6;
  --line-strong: #d7ccc3;
  --content: min(980px, calc(100vw - 72px));
  --radius-lg: 18px;
  --radius-md: 12px;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html {
  /* Keep the project page at a browser-independent 75% visual scale. */
  zoom: 1.0;
  scroll-behavior: smooth;
  scroll-padding-top: 78px;
  background: var(--paper);
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  line-height: 1.6;
  overflow-x: hidden;
}

img, video { display: block; max-width: 100%; }
button, a { font: inherit; }
a { color: inherit; text-decoration: none; }
button { color: inherit; }

.progress {
  position: fixed;
  z-index: 100;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: transparent;
}

.progress span {
  display: block;
  width: 0;
  height: 100%;
  background: var(--peach);
}

.site-header {
  position: fixed;
  z-index: 50;
  top: 0;
  left: 0;
  right: 0;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 max(24px, calc((100vw - 1080px) / 2));
  border-bottom: 1px solid rgba(215, 204, 195, .82);
  background: rgba(251, 249, 246, .92);
  backdrop-filter: blur(12px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 760;
  letter-spacing: .12em;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border: 1px solid #d88d6d;
  border-radius: 7px;
  color: var(--peach-dark);
  background: #fff8f4;
  font-family: var(--serif);
  font-size: 18px;
  font-style: italic;
  letter-spacing: 0;
}

.desktop-nav { display: flex; align-items: center; gap: 2px; }

.desktop-nav a {
  padding: 8px 10px;
  border-radius: 7px;
  color: #665f59;
  font-size: 11px;
  font-weight: 550;
  transition: color .2s, background .2s;
}

.desktop-nav a:hover,
.desktop-nav a.active {
  color: var(--peach-dark);
  background: #f7e8df;
}

.menu-button {
  display: none;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 0;
  background: transparent;
}

.menu-button span {
  display: block;
  width: 20px;
  height: 1px;
  margin: 5px auto;
  background: var(--ink);
}

.hero {
  position: relative;
  padding: 126px max(36px, calc((100vw - 980px) / 2)) 72px;
  overflow: hidden;
  text-align: center;
}

.hero-backdrop {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 18% 10%, rgba(255, 197, 166, .66), transparent 30%),
    radial-gradient(circle at 86% 24%, rgba(189, 240, 234, .68), transparent 28%),
    linear-gradient(180deg, #fffdfb 0%, var(--paper) 78%);
}

.hero::before {
  content: "";
  position: absolute;
  top: 68px;
  left: 50%;
  width: 1px;
  height: 48px;
  background: var(--line-strong);
}

.hero-copy, .teaser-card, .scroll-cue { position: relative; z-index: 2; }
.hero-copy { max-width: 820px; margin: 0 auto 44px; }

.eyebrow, .kicker {
  margin: 0 0 16px;
  color: var(--peach-dark);
  font-size: 10px;
  font-weight: 760;
  letter-spacing: .17em;
  text-transform: uppercase;
}

.eyebrow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.eyebrow span { width: 28px; height: 1px; background: var(--peach); }
h1, h2, h3, p { margin-top: 0; }

h1 {
  max-width: 800px;
  margin: 0 auto 12px;
  color: var(--peach-dark);
  font-family: var(--serif);
  font-size: clamp(36px, 4.2vw, 52px);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -.045em;
}

h1 strong {
  color: inherit;
  font-weight: 600;
}

.paper-subtitle {
  margin: 0 auto 24px;
  color: var(--teal);
  font-family: var(--serif);
  font-size: clamp(17px, 2vw, 23px);
  font-style: italic;
}

.hero-deck {
  max-width: 630px;
  margin: 0 auto;
  color: #69635d;
  font-size: 15px;
  line-height: 1.72;
}

.hero-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 26px;
}

.pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 39px;
  padding: 0 15px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  color: #5c5752;
  background: rgba(255,255,255,.7);
  font-size: 11px;
  font-weight: 650;
}

.pill span { margin-left: 14px; }
.pill-primary {
  color: var(--white);
  border-color: #e77f5a;
  background: #ef916b;
  box-shadow: 0 4px 12px rgba(231, 127, 90, .18);
}
.pill-primary:hover {
  color: var(--white);
  border-color: #d86f4b;
  background: #df7955;
}
.pill-muted { color: #817a73; background: #fff; }
.pill-huggingface {
  min-height: 45px;
  padding: 0 20px 0 10px;
  color: #332800;
  border-color: #d5a900;
  background: #ffd84d;
  box-shadow: 0 7px 18px rgba(166, 119, 0, .24);
  cursor: default;
  font-size: 12px;
  font-weight: 760;
}
.pill-huggingface .hf-mark {
  display: grid;
  place-items: center;
  width: 27px;
  height: 27px;
  margin: 0 10px 0 0;
  border-radius: 6px;
  color: #ffd84d;
  background: #3a2d00;
  font-size: 8px;
  font-weight: 800;
  letter-spacing: 0;
}
.pill-huggingface:not([aria-disabled="true"]):hover { border-color: #b99000; background: #ffcf24; transform: translateY(-1px); }
.pill-huggingface[aria-disabled="true"] { pointer-events: none; }

.teaser-card {
  width: min(900px, 100%);
  margin: 0 auto;
  padding: 10px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,.92);
  box-shadow: 0 18px 55px rgba(80, 55, 43, .11);
}

.teaser-card img { width: 100%; border-radius: 10px; }
.teaser-card figcaption {
  display: flex;
  justify-content: space-between;
  padding: 11px 5px 1px;
  color: #817b75;
  font-size: 9px;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.scroll-cue {
  display: flex;
  align-items: center;
  gap: 9px;
  width: max-content;
  margin: 28px auto 0;
  color: #8c857f;
  font-size: 9px;
  letter-spacing: .13em;
  text-transform: uppercase;
}

.scroll-cue span {
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
}
.scroll-cue span::after { content: "↓"; }

.section {
  position: relative;
  width: var(--content);
  margin: 0 auto;
  padding: 82px 0;
}

.section + .section { border-top: 1px solid var(--line); }

.section-index {
  position: absolute;
  top: 86px;
  right: 0;
  min-width: 31px;
  padding: 4px 6px;
  border: 1px solid #edc3b0;
  border-radius: 5px;
  color: var(--peach-dark);
  background: #fff7f3;
  font-family: var(--sans);
  font-size: 9px;
  font-weight: 700;
  text-align: center;
}

.section-heading { max-width: 700px; margin-bottom: 42px; }

.section-heading h2, .closing h2 {
  margin-bottom: 0;
  color: var(--ink);
  font-family: var(--serif);
  font-size: clamp(36px, 4vw, 50px);
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: -.035em;
}

.split-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, .75fr);
  align-items: end;
  gap: 42px;
  max-width: none;
}

.split-heading > p {
  margin: 0 38px 3px 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.72;
}

.abstract-grid {
  display: grid;
  grid-template-columns: .85fr 1.15fr;
  gap: 8vw;
  margin-bottom: 52px;
}

.abstract-lead {
  color: #3e3935;
  font-family: var(--serif);
  font-size: clamp(21px, 2.4vw, 29px);
  line-height: 1.38;
}

.abstract-copy { color: #625d57; font-size: 15px; line-height: 1.82; }
.abstract-copy strong { color: var(--peach-dark); }

.method-card, .main-results-viewer, .still-comparison, .correspondence-stage {
  border: 1px solid var(--line-strong);
  background: var(--white);
  box-shadow: 0 8px 28px rgba(72, 54, 44, .06);
}

.method-card { margin: 0; padding: 10px; border-radius: var(--radius-lg); }
.method-card > img { width: 100%; border-radius: 9px; background: #fffaf7; }
.method-card figcaption {
  max-width: 790px;
  padding: 17px 10px 8px;
  color: var(--muted);
  font-family: var(--serif);
  font-size: 13px;
}

.figure-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 5px 6px 12px;
  color: #716a64;
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: .11em;
}

.figure-toolbar > span { display: flex; align-items: center; gap: 8px; }
.figure-toolbar i { width: 7px; height: 7px; border-radius: 50%; background: var(--teal); }

.zoom-button {
  border: 0;
  padding: 6px 8px;
  color: var(--teal);
  background: transparent;
  cursor: pointer;
  font-size: 11px;
}
.zoom-button:hover { color: var(--peach-dark); }
.zoom-button span { margin-left: 5px; }

.main-results-viewer {
  overflow: hidden;
  border-radius: 8px;
}

.main-results-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.62fr) minmax(235px, .62fr);
  background: #fff;
}

.result-stage {
  min-width: 0;
  margin: 0;
  padding: 14px;
}

.result-stage + .result-stage { border-left: 1px solid var(--line); }

.result-stage figcaption {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 42px;
  padding: 0 2px 12px;
}

.result-stage figcaption > span {
  display: grid;
  place-items: center;
  width: 25px;
  height: 25px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  color: var(--peach-dark);
  font-size: 8px;
  font-weight: 750;
}

.result-stage figcaption div { display: grid; line-height: 1.25; }
.result-stage figcaption strong { font-family: var(--serif); font-size: 15px; font-weight: 400; }
.result-stage figcaption small { color: var(--muted); font-size: 8px; letter-spacing: .08em; text-transform: uppercase; }

.result-media {
  position: relative;
  display: grid;
  place-items: center;
  width: 100%;
  overflow: hidden;
  border: 1px solid #ebe4de;
  background: #fcfbfa;
}

.result-media-square { aspect-ratio: 1; }
.result-media-wide { aspect-ratio: 1.31 / 1; }
.result-media > img { width: 100%; height: 100%; object-fit: contain; background: #fff; }
.result-media > img[hidden], .result-empty[hidden] { display: none; }
.result-media[data-main-model] canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; touch-action: none; }
.result-model-loading,
.result-model-error {
  position: absolute;
  z-index: 3;
  inset: 0;
  display: grid;
  place-items: center;
  color: #928b84;
  background: #faf8f6;
  font-size: 8px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.result-model-loading[hidden], .result-model-error[hidden] { display: none; }
.result-empty-model { z-index: 2; }

.source-thumbnail {
  position: absolute;
  z-index: 5;
  left: 11px;
  bottom: 11px;
  width: clamp(108px, 26%, 155px);
  padding: 5px;
  border: 1px solid rgba(202, 193, 186, .95);
  border-radius: 6px;
  background: rgba(255, 255, 255, .94);
  box-shadow: 0 7px 20px rgba(50, 42, 37, .16);
  backdrop-filter: blur(7px);
}

.source-thumbnail-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 24px;
  padding: 0 0 4px 2px;
}

.source-thumbnail-label {
  color: #5f5954;
  font-size: 7px;
  font-weight: 750;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.source-thumbnail-expand {
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  padding: 0;
  border: 1px solid #d8d0ca;
  border-radius: 4px;
  color: #4f4944;
  background: #fff;
  cursor: pointer;
}
.source-thumbnail-expand[hidden] { display: none; }
.source-thumbnail-expand:hover { color: var(--peach-dark); border-color: var(--peach); background: #fff8f4; }
.source-thumbnail-expand:focus-visible { outline: 2px solid var(--teal); outline-offset: 2px; }
.source-thumbnail-expand span { margin: 0; font-size: 12px; line-height: 1; }

.source-thumbnail-media {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  overflow: hidden;
  border: 1px solid #ebe4de;
  background: #faf8f6;
}
.source-thumbnail-media img { width: 100%; height: 100%; object-fit: contain; background: #fff; }
.source-thumbnail-media img[hidden], .source-thumbnail-empty[hidden] { display: none; }
.source-thumbnail-empty { position: absolute; inset: 0; display: grid; place-items: center; overflow: hidden; }
.source-thumbnail-empty .empty-anchor-grid { transform: scale(.56); }

.registration-stack {
  display: grid;
  grid-template-rows: repeat(2, minmax(0, 1fr));
  flex: 1;
  gap: 8px;
  width: 100%;
  min-height: 0;
  margin: 0;
}

.result-registration-stage { display: flex; flex-direction: column; }

.registration-view {
  position: relative;
  min-height: 0;
  overflow: hidden;
  border: 1px solid #ebe4de;
  background: #fbfaf9;
}

.registration-view img {
  position: absolute;
  top: 34px;
  right: 0;
  bottom: 0;
  left: 0;
  width: 100%;
  height: calc(100% - 34px);
  padding: 6px;
  object-fit: contain;
  background: #fff;
}
.registration-view img[hidden], .registration-empty[hidden] { display: none; }
.registration-after { border-color: #cfe4df; background: #f7fbfa; }

.registration-state {
  position: absolute;
  z-index: 3;
  top: 0;
  right: 0;
  left: 0;
  display: flex;
  align-items: center;
  height: 34px;
  padding: 0 11px;
  border-bottom: 1px solid rgba(215, 204, 195, .85);
  color: #655f59;
  background: #faf8f6;
  font-size: 7px;
  font-weight: 750;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.registration-after .registration-state { color: #176d67; border-color: #b9dcd7; background: #f4faf8; }
.registration-empty {
  position: absolute;
  inset: 34px 0 0;
  display: grid;
  place-items: center;
  overflow: hidden;
  background:
    linear-gradient(#eee9e5 1px, transparent 1px),
    linear-gradient(90deg, #eee9e5 1px, transparent 1px),
    #faf8f6;
  background-size: 24px 24px;
}
.registration-empty .empty-registration-mark { transform: scale(.72); }

.result-empty {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 13px;
  color: #aaa19a;
  background:
    linear-gradient(#eee9e5 1px, transparent 1px),
    linear-gradient(90deg, #eee9e5 1px, transparent 1px),
    #faf8f6;
  background-size: 28px 28px;
}

.result-empty::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(250, 248, 246, .72);
}

.result-empty small { z-index: 2; font-size: 8px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }

.empty-anchor-grid {
  position: relative;
  z-index: 2;
  width: 78px;
  height: 64px;
  border: 1px solid #cfc7c0;
  background: rgba(255,255,255,.75);
}

.empty-anchor-grid i { position: absolute; width: 9px; height: 9px; border: 2px solid #fff; border-radius: 50%; box-shadow: 0 0 0 1px currentColor; }
.empty-anchor-grid i:nth-child(1) { left: 14px; top: 13px; color: #16a89e; background: #16a89e; }
.empty-anchor-grid i:nth-child(2) { right: 13px; top: 18px; color: #ff5d73; background: #ff5d73; }
.empty-anchor-grid i:nth-child(3) { left: 29px; bottom: 10px; color: #7157e8; background: #7157e8; }
.empty-anchor-grid i:nth-child(4) { right: 24px; bottom: 13px; color: #f1a000; background: #f1a000; }

.empty-registration-mark { position: relative; z-index: 2; width: 105px; height: 64px; }
.empty-registration-mark::before, .empty-registration-mark::after {
  content: "";
  position: absolute;
  width: 58px;
  height: 44px;
  border: 1px dotted currentColor;
  border-radius: 50%;
  transform: rotate(-18deg);
}
.empty-registration-mark::before { left: 4px; top: 7px; color: #16a89e; }
.empty-registration-mark::after { right: 3px; bottom: 5px; color: #ef705d; }
.empty-registration-mark i { position: absolute; z-index: 2; top: 29px; width: 7px; height: 7px; border-radius: 50%; }
.empty-registration-mark i:first-child { left: 31px; background: #7157e8; }
.empty-registration-mark i:last-child { right: 28px; background: #f1a000; }
.empty-registration-mark i:first-child::after { content: ""; position: absolute; left: 7px; top: 3px; width: 40px; height: 1px; background: #9c8fe3; transform: rotate(-7deg); transform-origin: left; }

.empty-cube { position: relative; z-index: 2; width: 62px; height: 68px; transform: rotate(30deg) skew(-5deg); }
.empty-cube i { position: absolute; inset: 8px; border: 1px solid #a99f97; background: rgba(255,255,255,.56); }
.empty-cube i:nth-child(2) { transform: translate(10px, -10px); border-color: #e27654; }
.empty-cube i:nth-child(3) { transform: translate(20px, -20px); border-color: #138c84; }

.main-results-controls {
  display: grid;
  grid-template-columns: 38px minmax(145px, auto) 1fr 38px;
  align-items: center;
  gap: 14px;
  min-height: 62px;
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  background: #fff;
}

.main-results-controls .gallery-meta { display: grid; grid-template-columns: auto 1fr; align-items: baseline; gap: 10px; }
.main-results-controls .gallery-count { color: #928b84; font-size: 8px; letter-spacing: .11em; }
.main-results-controls .gallery-count b { color: var(--peach-dark); }

.comparison-viewer,
.still-comparison {
  display: grid;
  grid-template-columns: 1fr 58px 1fr;
  padding: 13px;
  border-radius: var(--radius-lg);
}

.media-panel { min-width: 0; }
.panel-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 3px 11px;
  color: #8b847e;
  font-size: 9px;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.panel-label span { color: var(--ink); font-size: 11px; font-weight: 720; }

.video-shell {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border: 1px solid #dcd7d3;
  border-radius: 11px;
  background: #ebe8e4;
}
.video-shell video { width: 100%; height: 100%; object-fit: cover; }
.input-panel .video-shell video { transform: rotate(-2deg) scale(1.06); }
.media-shade { position: absolute; inset: 0; pointer-events: none; box-shadow: inset 0 0 55px rgba(56,44,37,.13); }

.status-badge {
  position: absolute;
  top: 11px;
  left: 11px;
  padding: 6px 9px;
  border: 1px solid rgba(255,255,255,.75);
  border-radius: 5px;
  color: #fff;
  background: rgba(39,37,35,.72);
  font-size: 8px;
  letter-spacing: .09em;
  text-transform: uppercase;
  backdrop-filter: blur(7px);
}
.status-badge.accent { color: #174b48; border-color: #b6ded8; background: rgba(220,236,234,.92); }

.video-toggle {
  position: absolute;
  right: 11px;
  bottom: 11px;
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  padding: 0;
  border: 1px solid rgba(255,255,255,.65);
  border-radius: 50%;
  color: #fff;
  background: rgba(39,37,35,.65);
  cursor: pointer;
}

.transform-mark {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--peach-dark);
}
.transform-mark span { font-size: 24px; font-weight: 300; }
.transform-mark small { color: #a28677; font-size: 7px; font-weight: 700; letter-spacing: .12em; }

.gallery-controls {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 38px auto 1fr 38px;
  align-items: center;
  gap: 12px;
  margin-top: 12px;
  padding: 11px 3px 0;
  border-top: 1px solid var(--line);
}

.gallery-arrow {
  width: 36px;
  height: 36px;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: #fff;
  cursor: pointer;
}
.gallery-arrow:hover { color: var(--peach-dark); border-color: var(--peach); background: #fff8f4; }
.gallery-meta { display: flex; align-items: baseline; gap: 12px; }
.gallery-meta strong { font-family: var(--serif); font-size: 16px; font-weight: 400; }
.gallery-meta span { color: #928b84; font-size: 8px; letter-spacing: .11em; }
.gallery-meta b { color: var(--peach-dark); font-weight: 700; }
.gallery-dots { display: flex; justify-content: center; gap: 7px; }
.gallery-dots button { width: 22px; height: 2px; padding: 0; border: 0; background: #d8d1cb; cursor: pointer; }
.gallery-dots button.active { width: 38px; background: var(--peach); }

.dataset-browser {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) 42px;
  align-items: center;
  gap: 12px;
}

.dataset-stage {
  min-width: 0;
  padding: 14px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 8px 28px rgba(72, 54, 44, .06);
}

.dataset-toolbar {
  display: grid;
  grid-template-columns: minmax(120px, 1fr) auto minmax(90px, 1fr);
  align-items: center;
  gap: 18px;
  min-height: 48px;
  padding: 0 4px 12px;
  border-bottom: 1px solid var(--line);
}

.dataset-set-title {
  display: flex;
  align-items: baseline;
  gap: 10px;
  min-width: 0;
}
.dataset-set-title span {
  color: var(--muted);
  font-size: 8px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.dataset-set-title strong {
  color: var(--ink);
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 400;
  white-space: nowrap;
}

.dataset-toolbar .gallery-dots { gap: 6px; }
.dataset-toolbar .gallery-dots button {
  width: 22px;
  height: 4px;
  border-radius: 2px;
  transition: width .18s ease, background .18s ease;
}
.dataset-toolbar .gallery-dots button.active { width: 38px; }

.dataset-counter {
  display: flex;
  justify-content: flex-end;
  gap: 7px;
  color: #9a928b;
  font-size: 9px;
  letter-spacing: .08em;
}
.dataset-counter b { color: var(--peach-dark); font-weight: 750; }

.dataset-pair {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 48px minmax(0, 1fr);
  gap: 10px;
  padding-top: 14px;
}

.dataset-panel { min-width: 0; margin: 0; }
.dataset-panel figcaption {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  min-height: 34px;
  padding: 2px 2px 9px;
}
.dataset-panel figcaption strong {
  color: var(--ink);
  font-size: 11px;
  font-weight: 750;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.dataset-panel figcaption span {
  color: var(--muted);
  font-family: var(--serif);
  font-size: 12px;
}

.dataset-media-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  padding: 8px;
  border: 1px solid #ded8d3;
  border-radius: 6px;
  background: #f1efec;
}
.output-panel .dataset-media-grid {
  border-color: #cfe4df;
  background: #edf5f3;
}

.media-slot {
  position: relative;
  aspect-ratio: 1.16 / 1;
  overflow: hidden;
  border: 1px dashed #d3ccc6;
  border-radius: 4px;
  background:
    linear-gradient(90deg, transparent 49.7%, rgba(83, 74, 68, .045) 50%, transparent 50.3%),
    linear-gradient(transparent 49.7%, rgba(83, 74, 68, .045) 50%, transparent 50.3%),
    #faf9f7;
  background-size: 34px 34px;
}
.output-panel .media-slot { border-color: #c8ddd8; background-color: #f8fcfb; }
.media-slot.has-media { border-style: solid; background: #fff; }
.media-slot img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #fff;
}
.media-slot img[hidden] { display: none; }
.media-slot > span {
  position: absolute;
  z-index: 1;
  top: 7px;
  left: 8px;
  color: #a79f98;
  font-size: 8px;
  font-weight: 700;
  letter-spacing: .06em;
}
.media-slot.has-media > span {
  padding: 3px 5px;
  border-radius: 3px;
  color: #fff;
  background: rgba(39, 35, 33, .68);
}

.dataset-transform {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  padding-top: 26px;
  color: var(--peach-dark);
}
.dataset-transform span { font-size: 23px; font-weight: 300; }
.dataset-transform small { color: #a28677; font-size: 7px; font-weight: 700; letter-spacing: .12em; }

.dataset-nav {
  display: grid;
  place-items: center;
  width: 42px;
  height: 76px;
  padding: 0;
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  color: var(--ink);
  background: #fff;
  box-shadow: 0 7px 20px rgba(72, 54, 44, .08);
  cursor: pointer;
  transition: color .18s ease, border-color .18s ease, background .18s ease, transform .18s ease;
}
.dataset-nav span {
  width: 10px;
  height: 10px;
  border-top: 1.5px solid currentColor;
  border-right: 1.5px solid currentColor;
}
.dataset-nav.prev span { transform: rotate(-135deg); margin-left: 4px; }
.dataset-nav.next span { transform: rotate(45deg); margin-right: 4px; }
.dataset-nav:hover {
  color: #fff;
  border-color: var(--peach-dark);
  background: var(--peach-dark);
  transform: translateY(-2px);
}
.dataset-nav:focus-visible { outline: 3px solid var(--teal-pale); outline-offset: 3px; }

.correspondence-browser {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) 42px;
  align-items: center;
  gap: 12px;
}

.correspondence-content { min-width: 0; }
.correspondence-content.slide-from-left { animation: correspondence-from-left .28s ease-out; }
.correspondence-content.slide-from-right { animation: correspondence-from-right .28s ease-out; }

@keyframes correspondence-from-left {
  from { opacity: .35; transform: translateX(-14px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes correspondence-from-right {
  from { opacity: .35; transform: translateX(14px); }
  to { opacity: 1; transform: translateX(0); }
}

.correspondence-nav {
  display: grid;
  place-items: center;
  width: 42px;
  height: 76px;
  padding: 0;
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  color: var(--ink);
  background: #fff;
  box-shadow: 0 7px 20px rgba(72, 54, 44, .08);
  cursor: pointer;
  transition: color .18s ease, border-color .18s ease, background .18s ease, transform .18s ease;
}

.correspondence-nav span {
  width: 10px;
  height: 10px;
  border-top: 1.5px solid currentColor;
  border-right: 1.5px solid currentColor;
}

.correspondence-nav.prev span { margin-left: 4px; transform: rotate(-135deg); }
.correspondence-nav.next span { margin-right: 4px; transform: rotate(45deg); }
.correspondence-nav:hover { color: var(--peach-dark); border-color: var(--peach); background: #fff8f4; transform: translateY(-2px); }
.correspondence-nav:focus-visible { outline: 3px solid var(--teal-pale); outline-offset: 3px; }

.model-tabs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 7px; margin-bottom: 10px; }
.model-tabs button {
  display: flex;
  justify-content: space-between;
  padding: 14px 15px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  color: #69635d;
  background: #fff;
  cursor: pointer;
  text-align: left;
  font-size: 11px;
  font-weight: 650;
}
.model-tabs button span { color: #a09993; font-family: var(--serif); font-weight: 400; }
.model-tabs button[aria-selected="true"] { color: #fff; border-color: var(--peach-dark); background: var(--peach-dark); }
.model-tabs button[aria-selected="true"] span { color: #f8d8c9; }

.correspondence-stage { border-radius: var(--radius-lg); overflow: hidden; }
.correspondence-media {
  position: relative;
  padding: 28px;
  border-bottom: 1px solid var(--line);
  background: #f3f0ec;
}
.correspondence-pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.correspondence-pane { min-width: 0; margin: 0; }
.correspondence-pane figcaption {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  min-height: 34px;
  padding: 2px 2px 9px;
}
.correspondence-pane figcaption strong { font-size: 11px; font-weight: 750; text-transform: uppercase; }
.correspondence-pane figcaption span { color: var(--muted); font-family: var(--serif); font-size: 12px; }
.correspondence-image,
.correspondence-model {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border: 1px solid #ddd6d0;
  border-radius: 6px;
  background: #fff;
}
.correspondence-case-badge {
  position: relative;
  z-index: 4;
  display: flex;
  align-items: baseline;
  width: max-content;
  gap: 9px;
  margin: 0 0 9px auto;
  padding: 6px 8px;
  border: 1px solid rgba(215, 204, 195, .9);
  border-radius: 5px;
  background: rgba(255, 255, 255, .9);
  backdrop-filter: blur(6px);
}
.correspondence-case-badge strong { font-family: var(--serif); font-size: 11px; font-weight: 400; }
.correspondence-case-badge span { color: #928b84; font-size: 7px; letter-spacing: .08em; }
.correspondence-case-badge b { color: var(--peach-dark); }
.correspondence-image > img { width: 100%; height: 100%; object-fit: contain; }
.correspondence-image > img[hidden] { display: none; }
.correspondence-model canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; touch-action: none; }
.correspondence-model-empty,
.correspondence-model-loading,
.correspondence-model-error {
  position: absolute;
  z-index: 2;
  inset: 0;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 13px;
  color: #928b84;
  background: #faf8f6;
}
.correspondence-model-empty[hidden],
.correspondence-model-loading[hidden],
.correspondence-model-error[hidden] { display: none; }
.correspondence-model-empty small,
.correspondence-model-loading,
.correspondence-model-error { font-size: 8px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.correspondence-caption { display: grid; grid-template-columns: 46px 1fr auto; gap: 18px; align-items: start; padding: 25px; }
.model-number { color: var(--peach-dark); font-family: var(--serif); font-size: 19px; }
.correspondence-caption h3 { margin-bottom: 7px; font-family: var(--serif); font-size: clamp(23px, 2.8vw, 34px); font-weight: 400; }
.correspondence-caption p:last-child { max-width: 730px; margin: 0; color: var(--muted); font-size: 12px; line-height: 1.7; }

.placeholder-art {
  position: relative;
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
  min-height: 0;
  overflow: hidden;
  color: var(--ink);
  background: radial-gradient(circle at center, #f9e2d7, #f2efeb 53%, #e5efed);
  border: 1px dashed #d5c8bf;
  border-radius: 10px;
  text-align: center;
}
.placeholder-art[hidden] { display: none; }
.placeholder-art strong { z-index: 2; margin-top: 45%; font-family: var(--serif); font-size: 18px; font-weight: 400; }
.placeholder-art small { z-index: 2; color: #7c756f; }
.node { position: absolute; z-index: 1; width: 42px; height: 42px; border: 9px solid rgba(255,255,255,.8); border-radius: 50%; box-shadow: 0 10px 26px rgba(72,54,44,.12); }
.node-a { left: 24%; top: 26%; background: #ef7f78; }
.node-b { right: 25%; top: 23%; background: #68bdb2; }
.node-c { left: 49%; top: 44%; background: #d7b4eb; }
.trace { position: absolute; top: 33%; left: 27%; width: 46%; height: 1px; background: linear-gradient(90deg,#ef7f78,#d7b4eb,#68bdb2); transform: rotate(-2deg); }
.trace-b { transform: rotate(26deg); opacity: .42; }

.closing {
  position: relative;
  min-height: 400px;
  display: grid;
  place-items: center;
  overflow: hidden;
  border-top: 1px solid #ecd1c4;
  border-bottom: 1px solid #ecd1c4;
  background: #f9e8df;
  text-align: center;
}
.closing-backdrop {
  position: absolute;
  inset: 0;
  opacity: .6;
  background:
    linear-gradient(90deg, transparent 49.9%, rgba(191,104,73,.13) 50%, transparent 50.1%),
    linear-gradient(transparent 49.9%, rgba(191,104,73,.11) 50%, transparent 50.1%);
  background-size: 80px 80px;
  mask-image: radial-gradient(circle, black, transparent 70%);
}
.closing-content { position: relative; z-index: 2; padding: 70px 24px; }
.closing h2 { margin-bottom: 28px; font-size: clamp(39px, 5vw, 62px); }

footer {
  width: var(--content);
  min-height: 120px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 28px;
  color: #817a74;
  font-size: 10px;
}
footer p { margin: 0; }
.footer-note { margin-left: auto; }

.lightbox {
  position: fixed;
  z-index: 200;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 48px;
  background: rgba(34,31,29,.93);
  backdrop-filter: blur(12px);
}
.lightbox[hidden] { display: none; }
.lightbox img { max-width: 94vw; max-height: 88vh; border-radius: 9px; box-shadow: 0 22px 80px rgba(0,0,0,.45); }
.lightbox-close { position: fixed; right: 24px; top: 20px; width: 42px; height: 42px; border: 1px solid rgba(255,255,255,.5); border-radius: 50%; color: #fff; background: transparent; font-size: 25px; cursor: pointer; }

.reveal { opacity: 0; transform: translateY(16px); transition: opacity .65s ease, transform .65s ease; }
.reveal.visible { opacity: 1; transform: none; }

@media (max-width: 900px) {
  :root { --content: min(100% - 30px, 720px); }
  .desktop-nav {
    position: absolute;
    top: 60px;
    right: 14px;
    display: none;
    width: min(280px, calc(100vw - 28px));
    padding: 9px;
    flex-direction: column;
    align-items: stretch;
    border: 1px solid var(--line-strong);
    border-radius: 10px;
    background: rgba(255,255,255,.98);
    box-shadow: 0 16px 45px rgba(72,54,44,.13);
  }
  .desktop-nav.open { display: flex; }
  .desktop-nav a { padding: 10px; }
  .menu-button { display: block; }
  .hero { padding: 126px 20px 72px; }
  .section { padding: 82px 0; }
  .section-index { top: 85px; }
  .split-heading { grid-template-columns: 1fr; gap: 20px; }
  .split-heading > p { margin-right: 20px; }
  .abstract-grid { grid-template-columns: 1fr; gap: 20px; }
  .main-results-grid { grid-template-columns: minmax(0, 1.5fr) minmax(220px, .6fr); }
  .comparison-viewer, .still-comparison { grid-template-columns: 1fr; gap: 9px; }
  .comparison-viewer .transform-mark, .still-comparison .transform-mark { min-height: 35px; transform: rotate(90deg); }
  .gallery-controls { grid-column: 1; }
  .dataset-browser { grid-template-columns: 36px minmax(0, 1fr) 36px; gap: 9px; }
  .dataset-nav { width: 36px; height: 70px; }
  .correspondence-browser { grid-template-columns: 36px minmax(0, 1fr) 36px; gap: 9px; }
  .correspondence-nav { width: 36px; height: 70px; }
  .correspondence-media { padding: 13px; }
  .correspondence-caption { grid-template-columns: 36px 1fr; }
  .corr-expand { grid-column: 2; width: max-content; }
}

@media (max-width: 680px) {
  .correspondence-pair { grid-template-columns: 1fr; }
  .main-results-grid { grid-template-columns: 1fr; }
  .result-stage + .result-stage { border-top: 1px solid var(--line); border-left: 0; }
  .result-stage .result-media, .result-stage .registration-stack { max-width: none; }
  .result-media-wide { aspect-ratio: 1.31 / 1; }
  .result-registration-stage .registration-stack { flex: none; max-width: 420px; margin: 0 auto; aspect-ratio: 1; }
  .dataset-browser { grid-template-columns: 34px minmax(0, 1fr) 34px; gap: 6px; }
  .dataset-stage { padding: 11px; }
  .dataset-toolbar { grid-template-columns: 1fr auto; gap: 8px 12px; }
  .dataset-set-title { grid-column: 1; grid-row: 1; }
  .dataset-counter { grid-column: 2; grid-row: 1; }
  .dataset-toolbar .gallery-dots { grid-column: 1 / -1; grid-row: 2; }
  .dataset-pair { grid-template-columns: 1fr; gap: 7px; }
  .dataset-transform { min-height: 34px; padding: 0; flex-direction: row; gap: 8px; }
  .dataset-transform span { transform: rotate(90deg); }
  .dataset-media-grid { gap: 7px; }
  .media-slot { aspect-ratio: 1.35 / 1; }
  .dataset-nav { width: 34px; height: 64px; }
}

@media (max-width: 560px) {
  :root { --content: calc(100% - 24px); }
  .site-header { height: 60px; padding: 0 14px; }
  .hero::before { top: 60px; height: 38px; }
  h1 { font-size: 34px; }
  .paper-subtitle { font-size: 17px; }
  .hero-deck { font-size: 13px; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .teaser-card { padding: 6px; border-radius: 12px; }
  .teaser-card figcaption span:first-child { display: none; }
  .teaser-card figcaption { justify-content: center; }
  .section-heading { margin-bottom: 38px; }
  .section-heading h2 { font-size: 39px; }
  .section-index { display: none; }
  .method-card { border-radius: 12px; }
  .main-results-controls { grid-template-columns: 36px 1fr 36px; padding: 9px 10px; }
  .main-results-controls .gallery-dots { display: none; }
  .main-results-controls .gallery-meta { justify-self: center; }
  .comparison-viewer, .still-comparison { padding: 8px; border-radius: 12px; }
  .gallery-controls { grid-template-columns: 36px 1fr 36px; }
  .gallery-dots { display: none; }
  .gallery-meta { justify-content: center; }
  .dataset-browser { grid-template-columns: 30px minmax(0, 1fr) 30px; gap: 4px; }
  .dataset-stage { padding: 8px; }
  .dataset-toolbar { min-height: 42px; padding: 0 2px 9px; }
  .dataset-set-title span { display: none; }
  .dataset-set-title strong { font-size: 15px; }
  .dataset-nav { width: 30px; height: 58px; }
  .correspondence-browser { grid-template-columns: 30px minmax(0, 1fr) 30px; gap: 4px; }
  .correspondence-nav { width: 30px; height: 58px; }
  .dataset-panel figcaption span { font-size: 11px; }
  .dataset-media-grid { gap: 5px; padding: 6px; }
  .media-slot > span { top: 5px; left: 6px; }
  .model-tabs { grid-template-columns: 1fr; }
  .model-tabs button { padding: 12px 13px; }
  .correspondence-caption { padding: 19px 15px; }
  .placeholder-art strong { margin-top: 45%; font-size: 18px; }
  footer { flex-wrap: wrap; padding: 26px 0; gap: 14px; }
  .footer-note { width: 100%; margin-left: 0; }
  .lightbox { padding: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}