:root {
  --ink: #141616;
  --muted: #5e6664;
  --paper: #ffffff;
  --wash: #f3f6f5;
  --line: #d9dfdd;
  --coral: #ed6548;
  --coral-dark: #b93c25;
  --teal: #19766e;
  --yellow: #f0bb3f;
  --max-width: 1180px;
  --header-height: 64px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

body.menu-open {
  overflow: hidden;
}

a {
  color: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

img,
video {
  display: block;
  max-width: 100%;
}

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 max(24px, calc((100vw - var(--max-width)) / 2));
  color: #fff;
  background: rgba(12, 15, 14, 0.28);
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
  backdrop-filter: blur(14px);
  transition: color 180ms ease, background 180ms ease, border-color 180ms ease;
}

.site-header.is-scrolled {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.94);
  border-color: var(--line);
}

.brand {
  text-decoration: none;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 26px;
}

.site-nav a {
  position: relative;
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 650;
}

.site-nav a::after {
  position: absolute;
  left: 0;
  right: 100%;
  bottom: -5px;
  height: 2px;
  content: "";
  background: currentColor;
  transition: right 180ms ease;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  right: 0;
}

.icon-button {
  width: 40px;
  height: 40px;
  display: inline-grid;
  place-items: center;
  padding: 0;
  color: inherit;
  background: transparent;
  border: 1px solid currentColor;
  border-radius: 6px;
  cursor: pointer;
}

.icon-button svg,
.button svg,
.text-link svg,
.hero-next svg {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
}

.menu-button {
  display: none;
}

.hero {
  position: relative;
  min-height: min(780px, 88svh);
  display: grid;
  align-items: center;
  overflow: hidden;
  color: #fff;
  background: #121816;
}

.hero-video,
.hero-shade {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-video {
  object-fit: cover;
  object-position: center;
}

.hero-shade {
  background: rgba(4, 8, 7, 0.58);
}

.hero-content {
  position: relative;
  z-index: 2;
  width: min(var(--max-width), calc(100% - 48px));
  margin: 0 auto;
  padding: calc(var(--header-height) + 48px) 0 72px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--coral);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: #ffb09e;
}

.hero h1 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(4rem, 10vw, 8rem);
  line-height: 0.94;
  letter-spacing: 0;
}

.hero-subtitle {
  max-width: 840px;
  margin: 22px 0 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.45rem, 3vw, 2.4rem);
  line-height: 1.14;
}

.hero-summary {
  max-width: 680px;
  margin: 22px 0 0;
  color: rgba(255, 255, 255, 0.84);
  font-size: 1.04rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 30px;
}

.button {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 10px 17px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 750;
  text-decoration: none;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  color: #fff;
  background: var(--coral);
  border-color: var(--coral);
}

.button-primary:hover {
  background: var(--coral-dark);
  border-color: var(--coral-dark);
}

.button-secondary {
  color: #fff;
  background: rgba(0, 0, 0, 0.2);
  border-color: rgba(255, 255, 255, 0.58);
}

.button-secondary:hover {
  background: rgba(0, 0, 0, 0.48);
  border-color: #fff;
}

.hero-next {
  position: absolute;
  z-index: 2;
  left: 50%;
  bottom: 22px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.78rem;
  font-weight: 700;
  text-decoration: none;
  transform: translateX(-50%);
}

.section {
  padding: 104px 24px;
  scroll-margin-top: var(--header-height);
}

.section-inner {
  width: min(var(--max-width), 100%);
  margin: 0 auto;
}

.citation-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.68fr) minmax(0, 1.32fr);
  gap: clamp(48px, 8vw, 112px);
  align-items: start;
}

.section h2 {
  max-width: 780px;
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2.15rem, 4.7vw, 4.5rem);
  line-height: 1.03;
  letter-spacing: 0;
}

.section-heading > p:not(.section-kicker),
.dataset-heading > p:not(.section-kicker) {
  color: var(--muted);
}

.intro-heading h2 {
  max-width: 860px;
  font-size: clamp(2.2rem, 3.8vw, 3.6rem);
}

.intro-copy-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: start;
  margin-top: 42px;
  padding-top: 24px;
  border-top: 1px solid var(--ink);
}

.intro-copy-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.72;
}

.intro-copy-grid p:first-child {
  padding-right: clamp(28px, 4vw, 56px);
}

.intro-copy-grid p + p {
  padding-left: clamp(28px, 4vw, 56px);
  border-left: 1px solid var(--line);
}

.wide-figure,
.method-figure {
  margin-top: 70px;
}

.wide-figure img,
.method-figure img {
  width: 100%;
  background: #fff;
}

figcaption {
  margin-top: 13px;
  color: var(--muted);
  font-size: 0.82rem;
}

.results-section,
.benchmark-section {
  background: var(--wash);
}

.centered-heading {
  max-width: 820px;
  margin: 0 auto;
  text-align: center;
}

.centered-heading h2 {
  margin-inline: auto;
}

.results-section .centered-heading h2 {
  font-size: clamp(4.5rem, 8vw, 7rem);
  font-weight: 700;
  line-height: 0.95;
}

.centered-heading > p:last-child {
  max-width: 680px;
  margin: 20px auto 0;
}

.results-section .demo-subtitle {
  font-size: 0.9rem;
  line-height: 1.55;
}

.segmented-control {
  width: fit-content;
  max-width: 100%;
  display: flex;
  gap: 4px;
  margin: 44px auto 26px;
  padding: 4px;
  overflow-x: auto;
  background: #e5eae8;
  border: 1px solid #d5dcda;
  border-radius: 8px;
  scrollbar-width: none;
}

.segmented-control::-webkit-scrollbar {
  display: none;
}

.segmented-control button {
  min-width: 88px;
  min-height: 38px;
  padding: 7px 14px;
  color: var(--muted);
  background: transparent;
  border: 0;
  border-radius: 5px;
  font: inherit;
  font-size: 0.84rem;
  font-weight: 750;
  white-space: nowrap;
  cursor: pointer;
}

.segmented-control button[aria-selected="true"] {
  color: var(--ink);
  background: #fff;
  box-shadow: 0 1px 4px rgba(22, 28, 26, 0.12);
}

.comparison-tool {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.comparison-pane {
  min-width: 0;
  padding: 14px 14px 22px;
  background: #fff;
}

.video-frame {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: #dfe5e3;
}

.video-frame video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.condition-label {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 5px 9px;
  color: #fff;
  background: rgba(20, 22, 22, 0.78);
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
}

.condition-label-alt {
  background: rgba(25, 118, 110, 0.9);
}

.comparison-pane h3 {
  margin: 20px 8px 4px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.42rem;
  line-height: 1.2;
}

.comparison-pane p {
  min-height: 52px;
  margin: 0 8px;
  color: var(--muted);
  font-size: 0.9rem;
}

.method-section {
  padding-bottom: 88px;
}

.method-figure {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.method-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-top: 56px;
}

.method-steps article {
  border-top: 3px solid var(--ink);
  padding-top: 18px;
}

.method-steps article:nth-child(2) {
  border-color: var(--coral);
}

.method-steps article:nth-child(3) {
  border-color: var(--teal);
}

.method-steps article:nth-child(4) {
  border-color: var(--yellow);
}

.method-steps span {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 800;
}

.method-steps h3 {
  margin: 12px 0 6px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.35rem;
}

.method-steps p {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.volumetric-section {
  background: var(--wash);
}

.volumetric-heading {
  max-width: 760px;
  margin-bottom: 64px;
}

.volumetric-heading h2 {
  max-width: 720px;
  font-size: clamp(2.35rem, 4vw, 3.75rem);
}

.volumetric-heading > p:not(.section-kicker) {
  max-width: 650px;
  margin-top: 20px;
}

.volumetric-stages {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(32px, 5vw, 72px);
  align-items: stretch;
}

.volumetric-stage {
  min-width: 0;
  margin: 0;
  padding-top: 22px;
  border-top: 1px solid var(--ink);
}

.volumetric-stage-media {
  aspect-ratio: 16 / 9;
  display: grid;
  place-items: center;
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 5px;
}

.volumetric-stage-media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.volumetric-stage figcaption {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 12px;
  margin-top: 18px;
}

.stage-index {
  padding-top: 5px;
  color: var(--coral);
  font-size: 0.75rem;
  font-weight: 800;
}

.volumetric-stage h3 {
  margin: 0 0 6px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.42rem;
  line-height: 1.18;
}

.volumetric-stage p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.stage-copy p + p {
  margin-top: 12px;
}

.dataset-layout {
  display: block;
}

.dataset-heading {
  max-width: 850px;
}

.dataset-heading h2 {
  max-width: 820px;
  font-size: clamp(2.2rem, 3.8vw, 3.45rem);
}

.dataset-heading > p:not(.section-kicker) {
  max-width: 760px;
  margin: 18px 0 0;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
  color: var(--teal);
  font-weight: 750;
  text-decoration: none;
}

.text-link:hover {
  text-decoration: underline;
}

.dataset-figure {
  width: min(100%, 1000px);
  margin: 56px auto 0;
}

.dataset-figure img {
  width: 100%;
  height: auto;
  padding: 22px;
  background: var(--wash);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.dataset-process {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.dataset-process li {
  padding: 22px 28px 0 0;
}

.dataset-process li + li {
  padding-left: 28px;
  border-left: 1px solid var(--line);
}

.dataset-process span {
  color: var(--coral);
  font-size: 0.73rem;
  font-weight: 800;
}

.dataset-process h3 {
  margin: 5px 0 7px;
  font-size: 1rem;
}

.dataset-process p {
  margin: 0;
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.55;
}

.table-wrap {
  margin-top: 48px;
  overflow-x: auto;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
}

caption {
  caption-side: bottom;
  padding: 13px 20px;
  color: var(--muted);
  font-size: 0.78rem;
  text-align: left;
}

th,
td {
  padding: 17px 20px;
  text-align: right;
  border-bottom: 1px solid var(--line);
}

th:first-child,
td:first-child {
  text-align: left;
}

th {
  color: var(--muted);
  background: #f8faf9;
  font-size: 0.72rem;
  text-transform: uppercase;
}

td {
  font-variant-numeric: tabular-nums;
  font-size: 0.9rem;
}

tbody tr:last-child td {
  border-bottom: 0;
}

.best-row td {
  color: #0d5d56;
  background: #e8f4f1;
  font-weight: 800;
}

.benchmark-context {
  max-width: 920px;
  margin-top: 22px;
  color: var(--muted);
  font-size: 0.88rem;
}

.citation-section {
  padding-block: 84px;
  background: #fff;
  border-top: 1px solid var(--line);
}

.citation-heading {
  max-width: 390px;
}

.citation-heading h2 {
  font-size: clamp(2.25rem, 3.4vw, 3.1rem);
  line-height: 1.06;
}

.citation-heading > p:not(.section-kicker) {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 0.96rem;
}

.citation-block {
  position: relative;
  min-width: 0;
  overflow: hidden;
  background: #17201e;
  border: 1px solid #2d3936;
  border-radius: 7px;
}

.citation-block-header {
  min-height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 8px 10px 8px 20px;
  color: #b9c9c4;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.72rem;
  font-weight: 750;
  text-transform: uppercase;
}

.citation-block pre {
  margin: 0;
  padding: 22px 24px 26px;
  overflow-x: auto;
  color: #e9f2ef;
  font-size: 0.8rem;
  line-height: 1.62;
}

.copy-button {
  width: 36px;
  height: 36px;
  flex: 0 0 auto;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.35);
}

.copy-button.is-copied {
  color: #83e1cd;
}

.site-footer {
  width: 100%;
  min-height: 124px;
  padding: 0 24px;
  color: rgba(255, 255, 255, 0.72);
  background: #111514;
  font-size: 0.82rem;
}

.site-footer-inner {
  width: min(var(--max-width), 100%);
  min-height: 124px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  margin: 0 auto;
  padding: 28px 0;
}

.site-footer strong,
.site-footer span {
  display: block;
}

.site-footer strong {
  color: #fff;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.15rem;
}

.footer-links {
  display: flex;
  gap: 20px;
}

.footer-links a {
  text-decoration: none;
}

.footer-links a:hover {
  color: #fff;
}

:focus-visible {
  outline: 3px solid var(--yellow);
  outline-offset: 3px;
}

@media (max-width: 900px) {
  .menu-button {
    display: inline-grid;
  }

  .site-nav {
    position: fixed;
    inset: var(--header-height) 0 auto 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 16px 24px 28px;
    color: var(--ink);
    background: #fff;
    border-bottom: 1px solid var(--line);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    padding: 13px 0;
    border-bottom: 1px solid var(--line);
  }

  .citation-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .intro-copy-grid {
    grid-template-columns: 1fr;
  }

  .intro-copy-grid p:first-child {
    padding-right: 0;
  }

  .intro-copy-grid p + p {
    margin-top: 22px;
    padding-top: 22px;
    padding-left: 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .method-steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .volumetric-stages {
    grid-template-columns: 1fr;
  }

  .volumetric-stage-media {
    aspect-ratio: auto;
  }

  .volumetric-stage-media img {
    height: auto;
  }

}

@media (max-width: 640px) {
  :root {
    --header-height: 58px;
  }

  .site-header {
    padding-inline: 18px;
  }

  .hero {
    min-height: 88svh;
  }

  .hero-video {
    object-position: 62% center;
  }

  .hero-content {
    width: calc(100% - 36px);
    padding-bottom: 74px;
  }

  .hero h1 {
    max-width: 100%;
    font-size: clamp(3.15rem, 16.5vw, 4.5rem);
  }

  .hero-subtitle {
    max-width: 100%;
    font-size: 1.32rem;
    overflow-wrap: break-word;
  }

  .hero-summary {
    max-width: 100%;
    font-size: 0.92rem;
    overflow-wrap: break-word;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .button {
    min-width: 0;
    padding-inline: 8px;
  }

  .section {
    padding: 76px 18px;
  }

  .section h2 {
    font-size: 2.35rem;
  }

  .results-section .demo-subtitle {
    font-size: 0.84rem;
  }

  .results-section .centered-heading h2 {
    font-size: 3.8rem;
  }

  .citation-heading h2 {
    font-size: 2.15rem;
  }

  .citation-block pre {
    white-space: pre-wrap;
    overflow-wrap: anywhere;
    font-size: 0.74rem;
  }

  .wide-figure,
  .method-figure {
    margin-top: 44px;
  }

  .segmented-control {
    width: 100%;
    justify-content: flex-start;
    margin-top: 34px;
  }

  .comparison-tool {
    grid-template-columns: 1fr;
  }

  .comparison-pane p {
    min-height: 0;
  }

  .video-frame {
    aspect-ratio: 4 / 3;
  }

  .method-steps,
  .dataset-process,
  .citation-layout {
    grid-template-columns: 1fr;
  }

  .volumetric-heading {
    margin-bottom: 42px;
  }

  .dataset-process {
    gap: 0;
  }

  .dataset-process li {
    padding: 18px 0;
    border-bottom: 1px solid var(--line);
  }

  .dataset-process li + li {
    padding-left: 0;
    border-left: 0;
  }

  .site-footer {
    padding-inline: 18px;
  }

  .site-footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}