:root {
  --ink: #111624;
  --ink-soft: #273044;
  --muted: #657084;
  --paper: #f6f4ef;
  --paper-deep: #eeece5;
  --white: #fff;
  --night: #090e1a;
  --night-soft: #131c30;
  --night-card: #111a2a;
  --blue: #4c72ff;
  --blue-dark: #274bdb;
  --cyan: #67d9f5;
  --lime: #99e17d;
  --red: #e75b5b;
  --gold: #d2a14c;
  --line: rgba(17, 22, 36, 0.12);
  --line-dark: rgba(255, 255, 255, 0.13);
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --serif: Iowan Old Style, Baskerville, "Times New Roman", serif;
  --page: min(1380px, calc(100vw - 56px));
  --reading: min(1120px, calc(100vw - 56px));
  --radius-lg: 24px;
  --radius-md: 16px;
  --shadow: 0 28px 80px rgba(24, 32, 52, 0.12);
  color-scheme: light;
  font-family: var(--sans);
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
}

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background: var(--paper);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body.nav-open {
  overflow: hidden;
}

a {
  color: inherit;
}

button,
input,
textarea,
select {
  font: inherit;
}

button {
  color: inherit;
}

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

[hidden] {
  display: none !important;
}

::selection {
  color: #07101f;
  background: #9ce9ff;
}

:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: 200;
  top: 10px;
  left: 10px;
  padding: 10px 14px;
  color: var(--night);
  background: var(--white);
  border-radius: 999px;
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: fixed;
  z-index: 80;
  top: 0;
  left: 0;
  width: 100%;
  color: rgba(255, 255, 255, 0.9);
  transition:
    color 240ms ease,
    background 240ms ease,
    border-color 240ms ease,
    box-shadow 240ms ease;
}

.site-header::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 1px;
  background: rgba(255, 255, 255, 0.14);
  content: "";
}

.site-header.is-scrolled {
  color: var(--ink);
  background: rgba(247, 245, 240, 0.9);
  box-shadow: 0 12px 40px rgba(24, 31, 49, 0.08);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}

.site-header.is-scrolled::after {
  background: var(--line);
}

.header-inner {
  display: flex;
  width: var(--page);
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  margin-inline: auto;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-size: 14px;
  font-weight: 750;
  letter-spacing: 0.025em;
  text-decoration: none;
}

.wordmark-mark {
  width: 18px;
  height: 18px;
  border: 1px solid currentcolor;
  border-radius: 5px;
  background:
    linear-gradient(135deg, transparent 47%, var(--cyan) 48% 53%, transparent 54%),
    linear-gradient(45deg, var(--blue), transparent 68%);
  box-shadow: 0 0 24px rgba(99, 220, 255, 0.25);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.site-nav a {
  position: relative;
  padding-block: 9px;
  font-size: 12px;
  font-weight: 690;
  letter-spacing: 0.02em;
  text-decoration: none;
}

.site-nav a::after {
  position: absolute;
  right: 0;
  bottom: 3px;
  left: 0;
  height: 1px;
  background: currentcolor;
  content: "";
  opacity: 0;
  transform: scaleX(0.35);
  transition:
    opacity 180ms ease,
    transform 180ms ease;
}

.site-nav a:hover::after,
.site-nav a.is-active::after {
  opacity: 0.65;
  transform: scaleX(1);
}

.site-nav .nav-paper {
  padding: 10px 14px;
  border: 1px solid currentcolor;
  border-radius: 999px;
}

.site-nav .nav-paper::after {
  display: none;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 0;
  background: transparent;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 1px;
  margin: 6px auto;
  background: currentcolor;
  transition: transform 180ms ease;
}

.menu-toggle[aria-expanded="true"] span:first-child {
  transform: translateY(3.5px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:last-child {
  transform: translateY(-3.5px) rotate(-45deg);
}

.hero {
  position: relative;
  min-height: 100svh;
  overflow: hidden;
  padding: clamp(128px, 11vw, 165px) max(28px, calc((100vw - 1380px) / 2)) 92px;
  color: var(--white);
  background:
    radial-gradient(circle at 70% 2%, rgba(72, 111, 212, 0.22), transparent 36%),
    linear-gradient(153deg, #070b13 0%, var(--night) 48%, #111a2d 100%);
}

.hero::after {
  position: absolute;
  right: -12vw;
  bottom: -35vw;
  width: 66vw;
  height: 66vw;
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 50%;
  content: "";
}

.hero-grid {
  position: absolute;
  inset: 0;
  opacity: 0.16;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: linear-gradient(to bottom, black, transparent 72%);
  mask-image: linear-gradient(to bottom, black, transparent 72%);
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

.hero-glow-a {
  top: 17%;
  right: 13%;
  width: 220px;
  height: 220px;
  background: rgba(78, 117, 255, 0.12);
  box-shadow: 0 0 140px 90px rgba(78, 117, 255, 0.07);
}

.hero-glow-b {
  top: 45%;
  left: 7%;
  width: 130px;
  height: 130px;
  background: rgba(99, 220, 255, 0.07);
  box-shadow: 0 0 100px 80px rgba(99, 220, 255, 0.04);
}

.hero-copy,
.hero-media,
.scroll-cue {
  position: relative;
  z-index: 1;
  width: var(--page);
  margin-inline: auto;
}

.hero-copy {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
  column-gap: clamp(42px, 7vw, 124px);
  align-items: end;
}

.eyebrow {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin: 0 0 30px;
}

.eyebrow span {
  padding: 6px 9px;
  color: #b9c9ff;
  font-size: 10px;
  font-weight: 720;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  border: 1px solid rgba(151, 174, 255, 0.26);
  border-radius: 999px;
}

h1 {
  grid-column: 1;
  margin: 0;
  font-size: clamp(72px, 10.3vw, 158px);
  line-height: 0.78;
  letter-spacing: -0.078em;
}

h1 span {
  color: transparent;
  background: linear-gradient(120deg, #f1f4ff 16%, #7d99ff 60%, var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  /* Negative letter-spacing lets the last glyph overhang the box; pad so the
     text-clipped gradient still covers it. */
  padding-right: 0.08em;
  margin-right: -0.08em;
}

.hero-title {
  grid-column: 1;
  max-width: 930px;
  margin: 38px 0 0;
  color: #dde3ef;
  font-family: var(--serif);
  font-size: clamp(25px, 2.65vw, 43px);
  line-height: 1.08;
  text-wrap: balance;
}

.hero-summary {
  grid-column: 2;
  grid-row: 4;
  margin: 0;
  color: #aeb8ca;
  font-size: clamp(16px, 1.45vw, 21px);
  line-height: 1.56;
}

.hero-actions {
  grid-column: 1;
  grid-row: 4;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 38px;
}

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 18px;
  font-size: 13px;
  font-weight: 730;
  border-radius: 999px;
  text-decoration: none;
}

.button-primary {
  color: #09101d;
  background: var(--white);
  transition:
    transform 180ms ease,
    box-shadow 180ms ease;
}

.button-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(99, 220, 255, 0.18);
}

.button-ghost,
.button-muted {
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.035);
}

.button-ghost {
  color: #e2e8f4;
}

.button-muted {
  color: #8f9aaf;
}

.hero-authors {
  grid-column: 1;
  grid-row: 3;
  max-width: 930px;
  margin: 30px 0 0;
}

.authors,
.affiliations,
.author-notes {
  display: flex;
  flex-wrap: wrap;
  margin: 0;
}

.authors {
  gap: 4px 22px;
  color: #dce2ee;
  font-size: clamp(15px, 1.15vw, 17px);
  line-height: 1.45;
}

.authors sup {
  color: var(--cyan);
  font-size: 0.66em;
  font-weight: 600;
  vertical-align: super;
  line-height: 0;
}

.affiliations {
  gap: 2px 20px;
  margin-top: 11px;
  color: #a3aec1;
  font-family: var(--serif);
  font-size: clamp(13px, 1vw, 15px);
  line-height: 1.5;
}

.affiliations sup {
  margin-right: 2px;
  color: var(--cyan);
  font-size: 0.7em;
  line-height: 0;
  vertical-align: super;
}

.author-notes {
  gap: 2px 18px;
  margin-top: 12px;
  color: #7d889d;
  font-size: 12px;
  line-height: 1.5;
}

.hero-media {
  margin-top: clamp(48px, 5vw, 72px);
  padding: 10px;
  color: var(--white);
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 19px;
  box-shadow: 0 46px 100px rgba(0, 0, 0, 0.4);
}

.hero-media-row + .hero-media-row {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.09);
}

.hero-media-head {
  display: flex;
  min-height: 48px;
  align-items: center;
  justify-content: space-between;
  padding: 3px 5px 12px;
}

.hero-media-head p {
  display: flex;
  gap: 10px;
  align-items: center;
  margin: 0;
  color: #8e9aaf;
  font-size: 9px;
  font-weight: 780;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-media-head p i {
  color: var(--cyan);
  font-style: normal;
}

.hero-video-control {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 11px;
  padding: 0 20px;
  color: #eef3fa;
  font-size: 12px;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  cursor: pointer;
  transition: background 160ms ease, border-color 160ms ease;
}

.hero-video-control:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.42);
}

.hero-media-grid {
  display: grid;
  overflow: hidden;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 12px;
}

.hero-media-grid figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: #020407;
}

.hero-media-grid video {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.hero-media-caption {
  margin: 0;
  padding: 12px 8px 2px;
  color: #818da1;
  font-size: 10px;
  line-height: 1.5;
}

.figure-launch {
  position: relative;
  display: block;
  width: 100%;
  padding: 0;
  overflow: hidden;
  border: 0;
  background: transparent;
  cursor: zoom-in;
}

.figure-launch img {
  display: block;
  width: 100%;
  height: auto;
  transition: transform 420ms cubic-bezier(0.2, 0.75, 0.2, 1);
}

.figure-launch:hover img {
  transform: scale(1.008);
}

.paper-figure figcaption {
  padding: 11px 10px 3px;
  color: #6b7381;
  font-size: 11px;
  line-height: 1.5;
}

.scroll-cue {
  display: flex;
  gap: 13px;
  align-items: center;
  margin-top: 38px;
  color: #8b96a8;
  font-size: 10px;
  font-weight: 680;
  letter-spacing: 0.12em;
  text-decoration: none;
  text-transform: uppercase;
}

.scroll-line {
  position: relative;
  display: block;
  width: 74px;
  height: 1px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.18);
}

.scroll-line::after {
  position: absolute;
  inset: 0;
  background: var(--cyan);
  content: "";
  transform: translateX(-100%);
  animation: scroll-line 2.2s ease-in-out infinite;
}

@keyframes scroll-line {
  0%,
  20% {
    transform: translateX(-100%);
  }

  70%,
  100% {
    transform: translateX(100%);
  }
}

.section {
  width: var(--page);
  margin-inline: auto;
  padding: clamp(100px, 11vw, 168px) 0;
}

.section-label {
  display: flex;
  align-items: center;
  gap: 13px;
  margin-bottom: 60px;
  color: var(--muted);
}

.section-label span {
  display: inline-flex;
  width: 34px;
  height: 34px;
  align-items: center;
  justify-content: center;
  color: var(--blue-dark);
  font-size: 10px;
  font-weight: 760;
  border: 1px solid rgba(39, 75, 219, 0.28);
  border-radius: 50%;
}

.section-label p {
  margin: 0;
  font-size: 11px;
  font-weight: 760;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.section-heading {
  max-width: 1060px;
  margin-bottom: clamp(56px, 7vw, 94px);
}

.section-heading-split {
  display: grid;
  max-width: none;
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.55fr);
  gap: 70px;
  align-items: end;
}

.section-heading-split > p {
  margin: 0 0 7px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
}

.kicker {
  margin: 0 0 17px;
  color: var(--blue-dark);
  font-size: 10px;
  font-weight: 780;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.kicker-light {
  color: #9fb4ff;
}

.section-heading h2,
.diversity-band h2,
.gallery h2,
.limitations h2,
.citation-panel h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(46px, 6vw, 86px);
  font-weight: 500;
  line-height: 0.98;
  letter-spacing: -0.045em;
  text-wrap: balance;
}

.abstract-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: clamp(58px, 8vw, 126px);
  padding-bottom: clamp(74px, 9vw, 124px);
}

.lead {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(28px, 3.4vw, 48px);
  line-height: 1.18;
  letter-spacing: -0.025em;
}

.abstract-copy {
  padding-top: 8px;
}

.abstract-copy p {
  margin: 0 0 22px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

.challenge-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.challenge-card {
  min-height: 360px;
  padding: 36px clamp(24px, 3vw, 46px);
  border-right: 1px solid var(--line);
}

.challenge-card:last-child {
  border-right: 0;
}

.challenge-card-featured {
  color: var(--white);
  background: var(--night-soft);
  transform: translateY(-14px);
  box-shadow: var(--shadow);
}

.card-index {
  margin: 0 0 66px;
  color: var(--blue-dark);
  font-family: var(--serif);
  font-size: 20px;
}

.challenge-card-featured .card-index {
  color: var(--cyan);
}

.challenge-card h3 {
  margin: 0 0 19px;
  font-family: var(--serif);
  font-size: clamp(25px, 2.3vw, 34px);
  font-weight: 500;
}

.challenge-card > p:not(.card-index) {
  margin: 0 0 28px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
}

.challenge-card-featured > p:not(.card-index) {
  color: #aeb9cc;
}

.tradeoff {
  display: inline-flex;
  padding: 7px 10px;
  font-size: 9px;
  font-weight: 790;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid currentcolor;
  border-radius: 999px;
}

.tradeoff-slow {
  color: #a67520;
}

.tradeoff-fragile {
  color: #cf5252;
}

.tradeoff-balanced {
  color: var(--lime);
}

.control-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(103, 217, 245, 0.1);
}

.media-label {
  position: absolute;
  z-index: 2;
  top: 14px;
  left: 14px;
  display: inline-flex;
  gap: 8px;
  align-items: center;
  min-height: 31px;
  padding: 0 10px;
  color: #dce5f4;
  font-size: 9px;
  font-weight: 780;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: rgba(4, 8, 15, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 999px;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.media-label i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #a9b2c0;
}

.media-label-accent i {
  background: var(--cyan);
}

.paper-figure {
  margin: 0;
  padding: 10px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.paper-figure .figure-launch {
  border-radius: 14px;
}

.method-figure {
  margin-bottom: clamp(80px, 10vw, 140px);
}

.method-steps {
  display: grid;
  margin: 0;
  padding: 0;
  grid-template-columns: repeat(4, 1fr);
  list-style: none;
  border-top: 1px solid var(--line);
}

.method-steps > li {
  min-height: 470px;
  padding: 30px clamp(22px, 2.4vw, 36px) 36px;
  border-right: 1px solid var(--line);
}

.method-steps > li:first-child {
  padding-left: 0;
}

.method-steps > li:last-child {
  border-right: 0;
}

.step-top {
  display: flex;
  align-items: center;
  margin-bottom: 80px;
}

.step-top span {
  color: var(--blue-dark);
  font-family: var(--serif);
  font-size: 20px;
}

.step-top i {
  width: 1px;
  height: 42px;
  margin-left: auto;
  background: var(--line);
}

.method-steps h3 {
  min-height: 68px;
  margin: 0 0 19px;
  font-family: var(--serif);
  font-size: clamp(25px, 2.25vw, 34px);
  font-weight: 500;
  line-height: 1.05;
}

.method-steps p {
  min-height: 130px;
  margin: 0 0 25px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.72;
}

.method-steps ul {
  margin: 0;
  padding: 0;
  color: var(--ink-soft);
  font-size: 10px;
  font-weight: 720;
  line-height: 1.8;
  list-style: none;
}

.method-steps ul li::before {
  display: inline-block;
  width: 11px;
  color: var(--blue);
  content: "·";
}

.diversity-band {
  display: grid;
  padding: clamp(100px, 12vw, 176px) max(28px, calc((100vw - 1380px) / 2));
  grid-template-columns: minmax(290px, 0.46fr) minmax(0, 1.54fr);
  gap: clamp(50px, 7vw, 112px);
  align-items: center;
  color: var(--white);
  background:
    radial-gradient(circle at 80% 0%, rgba(69, 106, 208, 0.18), transparent 32%),
    #0b1120;
}

.diversity-band h2 {
  font-size: clamp(43px, 5vw, 74px);
}

.diversity-copy > p:not(.kicker) {
  margin: 28px 0;
  color: #aab4c5;
  font-size: 13px;
  line-height: 1.78;
}

.diversity-principles {
  display: grid;
  gap: 11px;
  margin-top: 35px;
}

.diversity-principles span {
  display: grid;
  gap: 5px;
  padding-top: 13px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.diversity-principles strong {
  color: var(--cyan);
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 500;
}

.diversity-principles small {
  color: #8995a9;
  font-size: 9px;
  line-height: 1.5;
}

.diversity-figure {
  margin: 0;
  padding: 8px;
  background: var(--white);
  border-radius: 18px;
  box-shadow: 0 40px 90px rgba(0, 0, 0, 0.32);
}

.diversity-figure .figure-launch {
  border-radius: 11px;
}

.time-summary {
  display: grid;
  overflow: hidden;
  grid-template-columns: 1fr 1fr;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.time-summary article {
  min-height: 370px;
  padding: clamp(34px, 5vw, 68px);
}

.time-summary article + article {
  border-left: 1px solid var(--line);
}

.time-summary p {
  margin: 0;
  color: var(--blue-dark);
  font-size: 9px;
  font-weight: 780;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.time-summary strong {
  display: block;
  margin-top: 54px;
  color: var(--blue-dark);
  font-family: var(--serif);
  font-size: clamp(84px, 10vw, 148px);
  font-weight: 500;
  line-height: 0.72;
  letter-spacing: -0.065em;
}

.time-summary strong span {
  margin-right: 3px;
  color: #95a8f4;
  font-size: 0.45em;
  vertical-align: top;
}

.time-summary strong small {
  margin-left: 8px;
  color: var(--muted);
  font-family: var(--sans);
  font-size: 0.18em;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.time-summary em {
  display: block;
  max-width: 360px;
  margin-top: 45px;
  color: var(--muted);
  font-size: 11px;
  font-style: normal;
  line-height: 1.65;
}

.gallery {
  padding: clamp(100px, 11vw, 166px) max(28px, calc((100vw - 1380px) / 2));
  color: var(--white);
  background: #080d17;
}

.gallery-intro {
  display: grid;
  margin-bottom: 86px;
  grid-template-columns: 0.42fr 1.58fr;
  gap: 60px;
}

.gallery-intro > div:last-child {
  max-width: 950px;
}

.gallery-intro > div:last-child > p:not(.kicker) {
  max-width: 650px;
  margin: 27px 0 0;
  color: #9ba7ba;
  font-size: 14px;
  line-height: 1.72;
}

.section-label-dark {
  color: #8793a6;
}

.section-label-dark span {
  color: var(--cyan);
  border-color: rgba(103, 217, 245, 0.3);
}

.scene-grid {
  display: grid;
  max-width: 1260px;
  grid-template-columns: 1fr;
  gap: 30px;
  margin-inline: auto;
}

.scene-card {
  position: relative;
  overflow: hidden;
  background: #0f1727;
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: 18px;
}

.scene-card-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 22px 24px;
}

.scene-card-head span {
  color: #69768a;
  font-family: var(--serif);
  font-size: 15px;
}

.scene-card-head h3 {
  margin: 0;
  color: #d8dfeb;
  font-family: var(--serif);
  font-size: clamp(22px, 2.3vw, 30px);
  font-weight: 500;
}

.scene-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  background: rgba(255, 255, 255, 0.08);
}

.scene-pair figure {
  position: relative;
  margin: 0;
  background: #020407;
}

.scene-pair figure > span {
  position: absolute;
  z-index: 2;
  top: 9px;
  left: 9px;
  padding: 5px 8px;
  color: #d8e1ee;
  font-size: 8px;
  font-weight: 780;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  background: rgba(2, 4, 8, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
}

.scene-pair video {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.scene-card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  padding: 8px 16px 8px 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.scene-card-foot p {
  display: flex;
  gap: 10px;
  align-items: center;
  margin: 0;
  color: #8e9aaf;
  font-size: 9px;
  font-weight: 780;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.scene-card-foot p i {
  color: var(--cyan);
  font-style: normal;
}

.closing {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
  gap: clamp(55px, 8vw, 125px);
  align-items: start;
}

.limitations {
  position: sticky;
  top: 130px;
}

.limitations h2 {
  font-size: clamp(42px, 5vw, 70px);
}

.limitations > p:not(.kicker) {
  margin: 30px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.78;
}

.citation-panel {
  padding: clamp(28px, 4vw, 52px);
  color: var(--white);
  background: var(--night-soft);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.citation-head {
  display: flex;
  gap: 30px;
  align-items: flex-start;
  justify-content: space-between;
}

.citation-panel h2 {
  font-size: clamp(38px, 4vw, 57px);
}

.copy-button {
  min-height: 42px;
  padding: 0 14px;
  color: #dce4ef;
  font-size: 10px;
  font-weight: 720;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  cursor: pointer;
}

.citation-panel pre {
  margin: 48px 0 0;
  padding: 22px;
  overflow: auto;
  color: #c7d1e1;
  font: 11px/1.7 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  background: #090e18;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 12px;
}

.citation-note {
  margin: 16px 0 0;
  color: #7f8ca0;
  font-size: 9px;
  line-height: 1.5;
}

.site-footer {
  display: grid;
  min-height: 180px;
  padding: 48px max(28px, calc((100vw - 1380px) / 2));
  grid-template-columns: 1fr 1fr auto;
  gap: 40px;
  align-items: center;
  color: #9aa6b8;
  background: #070b13;
  border-top: 1px solid rgba(255, 255, 255, 0.09);
}

.wordmark-footer {
  color: var(--white);
}

.site-footer p {
  margin: 0;
  font-size: 11px;
}

.site-footer > div {
  display: flex;
  gap: 22px;
}

.site-footer > div a {
  color: #aab5c5;
  font-size: 10px;
  font-weight: 700;
  text-decoration: none;
}

.figure-dialog {
  width: min(96vw, 1720px);
  max-width: none;
  height: min(94vh, 1100px);
  max-height: none;
  margin: auto;
  padding: 0;
  color: var(--white);
  background: #080d17;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 18px;
  box-shadow: 0 40px 140px rgba(0, 0, 0, 0.65);
}

.figure-dialog::backdrop {
  background: rgba(1, 4, 9, 0.86);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.dialog-toolbar {
  position: sticky;
  z-index: 2;
  top: 0;
  display: flex;
  min-height: 58px;
  align-items: center;
  justify-content: space-between;
  padding: 0 18px;
  background: rgba(8, 13, 23, 0.92);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.dialog-toolbar p {
  margin: 0;
  color: #7f8b9f;
  font-size: 10px;
}

.dialog-toolbar button {
  min-height: 36px;
  padding: 0 12px;
  color: #dce4ef;
  font-size: 10px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  cursor: pointer;
}

.dialog-scroll {
  width: 100%;
  height: calc(100% - 58px);
  overflow: auto;
  padding: 14px;
}

.dialog-scroll img {
  display: block;
  width: auto;
  max-width: none;
  min-width: 100%;
  height: auto;
  margin: 0 auto;
  background: var(--white);
}

.noscript-note {
  position: fixed;
  z-index: 90;
  right: 10px;
  bottom: 10px;
  left: 10px;
  margin: 0;
  padding: 12px;
  color: var(--ink);
  font-size: 12px;
  text-align: center;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 10px;
}

.js [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity 620ms ease,
    transform 620ms cubic-bezier(0.2, 0.72, 0.2, 1);
}

.js [data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1100px) {
  .hero-copy {
    grid-template-columns: minmax(0, 1.2fr) minmax(250px, 0.8fr);
  }

  .section-heading-split,
  .abstract-layout {
    gap: 48px;
  }

  .method-steps {
    grid-template-columns: 1fr 1fr;
  }

  .method-steps > li {
    min-height: 420px;
    padding: 30px;
    border-bottom: 1px solid var(--line);
  }

  .method-steps > li:first-child {
    padding-left: 30px;
  }

  .method-steps > li:nth-child(2) {
    border-right: 0;
  }

  .method-steps > li:nth-last-child(-n + 2) {
    border-bottom: 0;
  }

  .method-steps p {
    min-height: 95px;
  }

  .diversity-band {
    grid-template-columns: 0.65fr 1.35fr;
  }
}

@media (max-width: 800px) {
  :root {
    --page: calc(100vw - 32px);
    --reading: calc(100vw - 32px);
    --radius-lg: 18px;
  }

  html {
    scroll-padding-top: 70px;
  }

  .header-inner {
    min-height: 62px;
  }

  .menu-toggle {
    display: block;
  }

  .site-nav {
    position: fixed;
    z-index: -1;
    inset: 0;
    display: flex;
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    gap: 15px;
    padding: 88px 28px 40px;
    color: var(--white);
    background: rgba(7, 11, 19, 0.98);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-12px);
    transition:
      opacity 180ms ease,
      transform 180ms ease,
      visibility 180ms ease;
  }

  .site-nav.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .site-nav a {
    font-family: var(--serif);
    font-size: 34px;
    font-weight: 500;
  }

  .site-nav .nav-paper {
    margin-top: 14px;
    font-family: var(--sans);
    font-size: 13px;
  }

  .site-header.is-scrolled .site-nav {
    color: var(--white);
  }

  .hero {
    min-height: auto;
    padding: 120px 16px 68px;
  }

  .hero-grid {
    background-size: 44px 44px;
  }

  .hero-copy {
    display: block;
  }

  h1 {
    font-size: clamp(52px, 16.2vw, 70px);
    letter-spacing: -0.07em;
  }

  .hero-title {
    max-width: 650px;
    margin-top: 31px;
    font-size: clamp(25px, 8vw, 39px);
  }

  .hero-summary {
    max-width: 590px;
    margin-top: 24px;
  }

  .hero-actions {
    margin-top: 29px;
  }

  .button-muted {
    display: none;
  }

  .hero-authors {
    margin-top: 22px;
  }

  .hero-media {
    width: calc(100vw - 20px);
    margin-top: 55px;
    margin-left: calc(50% - 50vw + 10px);
    padding: 5px;
    border-radius: 13px;
  }

  .hero-media-head {
    min-height: 46px;
    padding: 4px 7px 9px;
  }

  .hero-media-head p {
    font-size: 8px;
  }

  .hero-media-grid {
    grid-template-columns: 1fr;
    border-radius: 9px;
  }

  .hero-media-grid figure + figure {
    border-top: 2px solid rgba(255, 255, 255, 0.08);
  }

  .hero-video-control {
    min-height: 40px;
    padding: 0 15px;
    font-size: 11px;
  }

  .hero-media-caption {
    padding: 10px 7px 3px;
    font-size: 9px;
  }

  .scroll-cue {
    display: none;
  }

  .section {
    padding: 94px 0;
  }

  .section-label {
    margin-bottom: 46px;
  }

  .section-heading {
    margin-bottom: 55px;
  }

  .section-heading-split,
  .abstract-layout,
  .diversity-band,
  .closing,
  .gallery-intro {
    display: block;
  }

  .section-heading h2,
  .diversity-band h2,
  .gallery h2,
  .limitations h2,
  .citation-panel h2 {
    font-size: clamp(43px, 13vw, 67px);
  }

  .section-heading-split > p {
    max-width: 620px;
    margin-top: 26px;
  }

  .abstract-layout {
    padding-bottom: 72px;
  }

  .abstract-copy {
    margin-top: 38px;
  }

  .lead {
    font-size: clamp(29px, 8vw, 40px);
  }

  .challenge-grid {
    display: block;
    border-bottom: 0;
  }

  .challenge-card {
    min-height: auto;
    padding: 31px 22px 35px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .challenge-card-featured {
    transform: none;
  }

  .card-index {
    margin-bottom: 38px;
  }

  .diversity-band,
  .gallery {
    padding: 88px 16px;
  }

  .limitations {
    position: static;
  }

  .diversity-figure,
  .time-summary,
  .scene-grid,
  .citation-panel {
    margin-top: 48px;
  }

  .method-figure {
    width: calc(100vw - 20px);
    margin-left: calc(50% - 50vw + 10px);
    padding: 5px;
  }

  .method-steps {
    display: block;
  }

  .method-steps > li,
  .method-steps > li:first-child {
    min-height: auto;
    padding: 28px 10px 42px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .step-top {
    margin-bottom: 38px;
  }

  .method-steps h3,
  .method-steps p {
    min-height: 0;
  }

  .method-steps p {
    max-width: 620px;
  }

  .diversity-figure {
    width: calc(100vw - 20px);
    margin-left: calc(50% - 50vw + 10px);
    padding: 5px;
  }

  .time-summary {
    grid-template-columns: 1fr;
  }

  .time-summary article {
    min-height: 300px;
    padding: 34px 24px;
  }

  .time-summary article + article {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .time-summary strong {
    margin-top: 43px;
    font-size: clamp(82px, 31vw, 122px);
  }

  .time-summary em {
    margin-top: 36px;
  }

  .gallery-intro .section-label {
    margin-bottom: 46px;
  }

  .scene-grid {
    display: grid;
    grid-template-columns: 1fr;
  }

  .scene-card {
    border-radius: 14px;
  }

  .scene-pair {
    grid-template-columns: 1fr;
  }

  .scene-pair figure + figure {
    border-top: 2px solid rgba(255, 255, 255, 0.08);
  }

  .limitations {
    margin-bottom: 80px;
  }

  .citation-panel {
    margin-top: 0;
  }

  .citation-head {
    display: block;
  }

  .copy-button {
    margin-top: 24px;
  }

  .citation-panel pre {
    margin-top: 34px;
    font-size: 9px;
  }

  .site-footer {
    display: flex;
    min-height: 240px;
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    padding: 48px 16px;
  }

  .site-footer > div {
    flex-wrap: wrap;
  }

  .figure-dialog {
    width: 100vw;
    height: 100dvh;
    border: 0;
    border-radius: 0;
  }

  .dialog-toolbar p {
    display: none;
  }

  .dialog-scroll img {
    min-width: 1200px;
  }
}

@media (max-width: 460px) {
  .button {
    width: 100%;
  }

  .button-ghost {
    width: auto;
  }
}

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

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

  .js [data-reveal] {
    opacity: 1;
    transform: none;
  }
}