@font-face {
  font-family: "Fraunces";
  src: url("./assets/fonts/fraunces-latin.woff2") format("woff2");
  font-weight: 400 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Inter Tight";
  src: url("./assets/fonts/inter-tight-latin.woff2") format("woff2");
  font-weight: 400 800;
  font-style: normal;
  font-display: swap;
}

:root {
  --graphite: #07090c;
  --graphite-soft: #11161a;
  --paper: #efece3;
  --paper-deep: #e5e9e3;
  --ink: #15191c;
  --rule: #c9cfca;
  --muted: #66706b;
  --teal: #63d6b3;
  --vermilion: #e86a52;
  --yellow: #f2c14e;
  --page: min(1312px, calc(100vw - 64px));
  --sans: "Inter Tight", Arial, sans-serif;
  --serif: "Fraunces", Georgia, serif;
  --mono: "SFMono-Regular", Consolas, monospace;
  color: var(--ink);
  background: var(--graphite);
  font-family: var(--sans);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  overflow-x: clip;
  background: var(--graphite);
}

button,
a {
  font: inherit;
}

a {
  color: inherit;
  text-underline-offset: 0.18em;
}

button {
  color: inherit;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 4px;
}

::selection {
  background: var(--yellow);
  color: var(--ink);
}

.eyebrow {
  margin: 0 0 15px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 650;
  line-height: 1.35;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2 {
  font-family: var(--serif);
  font-weight: 500;
  letter-spacing: 0;
}

.site-header {
  position: fixed;
  z-index: 10;
  inset: 0 0 auto;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 24px;
  align-items: center;
  width: 100%;
  margin: 0;
  min-height: 66px;
  padding: 10px max(32px, calc((100vw - 1312px) / 2));
  border-bottom: 1px solid transparent;
  color: #fff;
  transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease;
}

.wordmark {
  font-size: 1.03rem;
  font-weight: 750;
  line-height: 1;
  text-decoration: none;
}

.site-header a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
}

.site-header nav {
  display: flex;
  gap: 22px;
  font-size: 0.78rem;
  line-height: 1;
}

.site-header nav a,
.header-cta {
  color: rgba(255, 255, 255, 0.66);
  text-decoration: none;
  transition: color 160ms ease;
}

.site-header nav a:hover,
.header-cta:hover {
  color: #fff;
}

.header-cta {
  justify-self: end;
  font-size: 0.78rem;
  font-weight: 650;
  white-space: nowrap;
}

.site-header--scene {
  border-bottom-color: rgba(255, 255, 255, 0.1);
  background: rgb(8, 11, 14);
}

.site-header--paper {
  border-bottom-color: rgba(21, 25, 28, 0.16);
  background: var(--paper);
  color: var(--ink);
}

.site-header--paper nav a,
.site-header--paper .header-cta {
  color: #59635f;
}

.site-header--paper nav a:hover,
.site-header--paper .header-cta:hover {
  color: var(--ink);
}

#scene-shell {
  position: relative;
  height: 320svh;
  min-height: 1920px;
  overflow: clip;
  color: #fff;
  background: var(--graphite);
}

.scene-stage {
  position: sticky;
  z-index: 0;
  top: 0;
  width: 100%;
  height: 100svh;
  min-height: 560px;
  overflow: hidden;
  background: var(--graphite);
}

html.intro-active,
html.intro-active body {
  overflow: hidden;
  overscroll-behavior: none;
}

html.intro-active .site-header {
  visibility: hidden;
  opacity: 0;
  transform: translateY(-100%);
}

html.intro-active .scene-story {
  visibility: hidden;
  opacity: 0;
}

html.intro-active #engine-labels {
  visibility: hidden;
  opacity: 0;
}

.intro-overlay {
  position: fixed;
  z-index: 8;
  inset: 0;
  overflow: hidden;
  color: #edf7f4;
  pointer-events: none;
}

.intro-title {
  position: absolute;
  top: clamp(88px, 12vh, 148px);
  left: max(32px, calc((100vw - 1312px) / 2));
  width: min(620px, calc(100vw - 64px));
  transition: opacity 100ms ease;
}

#scene-shell[data-intro-phase="shockwave"] .intro-title,
#scene-shell[data-intro-phase="expansion"] .intro-title,
#scene-shell[data-intro-phase="portal"] .intro-title {
  opacity: 0;
}

#scene-shell[data-intro-phase="assembly"] .intro-phase {
  font-size: clamp(3rem, 5vw, 5.8rem);
}

.intro-index {
  margin: 0 0 16px;
  color: rgba(228, 239, 235, 0.5);
  font-family: var(--mono);
  font-size: 0.67rem;
  font-weight: 650;
  text-transform: uppercase;
}

.intro-phase {
  position: relative;
  height: clamp(72px, 10vw, 132px);
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(3.25rem, 7.2vw, 7.8rem);
  font-weight: 500;
  line-height: 0.92;
}

.intro-phase span {
  position: absolute;
  inset: 0 auto auto 0;
  width: max-content;
  max-width: 100%;
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 420ms ease, transform 620ms cubic-bezier(0.16, 1, 0.3, 1);
}

#scene-shell[data-intro-phase="arriving"] [data-intro-label="input"],
#scene-shell[data-intro-phase="armed"] [data-intro-label="singularity"],
#scene-shell[data-intro-phase="charging"] [data-intro-label="singularity"],
#scene-shell[data-intro-phase="assembly"] [data-intro-label="output"],
#scene-shell[data-intro-phase="portal"] [data-intro-label="output"] {
  opacity: 1;
  transform: translateY(0);
}

.intro-instrument {
  position: absolute;
  right: max(32px, calc((100vw - 1312px) / 2));
  bottom: clamp(54px, 8vh, 96px);
  width: min(410px, calc(100vw - 64px));
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 260ms ease, transform 260ms ease;
}

.intro-output-key {
  position: absolute;
  right: max(32px, calc((100vw - 1312px) / 2));
  bottom: clamp(48px, 7vh, 82px);
  display: grid;
  grid-template-columns: repeat(4, auto);
  gap: 20px;
  color: rgba(237, 247, 244, 0.58);
  font-family: var(--mono);
  font-size: 0.62rem;
  font-weight: 650;
  text-transform: uppercase;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 260ms ease, transform 320ms ease;
}

.intro-output-key b {
  margin-right: 5px;
  color: #63d6b3;
  font-weight: 700;
}

#scene-shell[data-intro-phase="assembly"] .intro-output-key {
  opacity: 1;
  transform: translateY(0);
}

#scene-shell[data-intro-phase="armed"] .intro-instrument,
#scene-shell[data-intro-phase="charging"] .intro-instrument {
  opacity: 1;
  transform: translateY(0);
}

.intro-charge {
  position: relative;
  height: 2px;
  overflow: hidden;
  background: rgba(235, 246, 241, 0.2);
}

.intro-charge span {
  position: absolute;
  inset: 0 auto 0 0;
  width: calc(var(--intro-charge, 0) * 100%);
  background: linear-gradient(90deg, #57c9b0, #efb968 64%, #f06f5a);
  box-shadow: 0 0 22px rgba(239, 185, 104, 0.6);
  transition: width 90ms linear;
}

.intro-prompt {
  display: flex;
  justify-content: space-between;
  margin: 11px 0 0;
  color: rgba(237, 247, 244, 0.6);
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 650;
  text-transform: uppercase;
}

.intro-prompt::after {
  content: attr(data-charge-label);
}

.intro-controls {
  position: absolute;
  top: 28px;
  right: max(32px, calc((100vw - 1312px) / 2));
  display: flex;
  gap: 8px;
  pointer-events: auto;
  transition: top 240ms ease, bottom 240ms ease;
}

.intro-controls button {
  min-height: 40px;
  padding: 8px 12px;
  border: 1px solid rgba(235, 246, 241, 0.22);
  border-radius: 2px;
  background: rgba(7, 13, 16, 0.72);
  color: rgba(237, 247, 244, 0.72);
  font-family: var(--mono);
  font-size: 0.66rem;
  font-weight: 650;
  text-transform: uppercase;
  backdrop-filter: blur(12px);
  cursor: pointer;
}

.intro-controls button:hover,
.intro-controls button:focus-visible {
  border-color: #63d6b3;
  color: #fff;
}

html:not(.intro-active) .intro-overlay {
  inset: auto 0 0;
  height: 82px;
}

html:not(.intro-active) .intro-title,
html:not(.intro-active) .intro-instrument,
html:not(.intro-active) .intro-output-key {
  display: none;
}

html:not(.intro-active) .intro-controls {
  top: auto;
  right: 24px;
  bottom: 20px;
}

#artifact-canvas {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
}

#artifact-canvas {
  z-index: 1;
  cursor: default;
  touch-action: pan-y;
}

.fallback-composition {
  position: absolute;
  z-index: 1;
  inset: 19% max(32px, calc((100vw - 1312px) / 2)) auto 43%;
  display: none;
  grid-template-columns: minmax(120px, 0.55fr) minmax(210px, 0.9fr) minmax(280px, 1.5fr);
  gap: 26px;
  align-items: center;
  min-height: 430px;
}

.fallback-composition::before {
  position: absolute;
  z-index: -1;
  right: 4%;
  left: 3%;
  top: 50%;
  height: 3px;
  background: var(--teal);
  content: "";
}

.fallback-source {
  display: grid;
  gap: 14px;
}

.fallback-source span {
  display: grid;
  min-height: 68px;
  place-items: center start;
  padding: 12px;
  border: 1px solid rgba(242, 193, 78, 0.45);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 0.68rem;
  transform: translateX(var(--source-shift, 0)) rotate(var(--source-turn, -2deg));
}

.fallback-source span:nth-child(2) {
  --source-shift: 10px;
  --source-turn: 1.5deg;
}

.fallback-source span:nth-child(3) {
  --source-shift: -4px;
  --source-turn: -1deg;
}

.fallback-engine {
  padding: 18px;
  border: 8px solid #252a31;
  background: rgba(99, 214, 179, 0.12);
  box-shadow: 14px 16px 0 rgba(37, 42, 49, 0.75);
  color: var(--paper);
}

.fallback-engine > strong,
.fallback-output > span {
  display: block;
  margin-bottom: 13px;
  color: var(--teal);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0;
}

.fallback-engine ol {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: module;
}

.fallback-engine li {
  display: flex;
  min-height: 38px;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px;
  border-left: 4px solid #252a31;
  background: var(--paper);
  color: var(--ink);
  counter-increment: module;
  font-size: 0.78rem;
}

.fallback-engine li::before {
  color: var(--muted);
  content: "0" counter(module);
  font-family: var(--mono);
  font-size: 0.64rem;
}

.fallback-engine b {
  color: #087c68;
  font-family: var(--mono);
  font-size: 0.6rem;
  text-transform: uppercase;
}

.fallback-output {
  padding: 12px;
  border: 5px solid #69736f;
  background: #15191c;
  box-shadow: 16px 18px 0 rgba(37, 42, 49, 0.72);
}

.scene-fallback {
  display: block;
  width: 100%;
  height: auto;
  border: 0;
}

#scene-shell.webgl-fallback .fallback-composition {
  display: grid;
}

#engine-labels {
  position: absolute;
  z-index: 2;
  inset: 0;
  pointer-events: none;
}

.engine-label {
  position: absolute;
  max-width: calc(100vw - 40px);
  color: rgba(232, 239, 235, 0.5);
  font-family: var(--mono);
  padding: 5px 7px;
  background: rgba(7, 9, 12, 0.82);
  font-size: 0.68rem;
  font-weight: 650;
  line-height: 1.25;
  letter-spacing: 0;
  overflow-wrap: anywhere;
  opacity: 0;
  transform: translateY(5px);
  transition: opacity 260ms ease, transform 260ms ease;
}

.engine-label::before {
  display: inline-block;
  width: 34px;
  height: 1px;
  margin: 0 8px 3px 0;
  background: currentColor;
  content: "";
}

.engine-label--instrument {
  top: 15%;
  right: 8%;
  color: rgba(255, 255, 255, 0.42);
}

.engine-label--source {
  top: 25%;
  left: 43%;
  color: rgba(240, 201, 76, 0.72);
}

.engine-label--context {
  top: 26%;
  right: auto;
  left: 6%;
}

.engine-label--designer {
  top: 36%;
  right: auto;
  left: 7%;
}

.engine-label--render {
  top: 47%;
  right: auto;
  left: 5%;
}

.engine-label--evaluate {
  top: 57%;
  right: auto;
  left: 7%;
}

.engine-label--repair {
  top: 68%;
  right: auto;
  left: 6%;
  color: rgba(32, 201, 177, 0.78);
}

.engine-label--trace {
  right: 6%;
  bottom: 12%;
  color: rgba(32, 201, 177, 0.82);
}

#scene-shell[data-phase="dormant"] [data-phase-label="instrument"],
#scene-shell[data-phase="dormant"] [data-phase-label="source"],
#scene-shell[data-phase="ingest"] [data-phase-label="instrument"],
#scene-shell[data-phase="ingest"] [data-phase-label="source"],
#scene-shell[data-phase="interior"] [data-phase-label="instrument"],
#scene-shell[data-phase="interior"] [data-phase-label="module"],
#scene-shell[data-phase="evaluate"] [data-phase-label="module"],
#scene-shell[data-phase="evaluate"] [data-phase-label="trace"] {
  opacity: 1;
  transform: translateY(0);
}

#scene-shell[data-phase="evaluate"] .engine-label--designer {
  opacity: 0;
  transform: translateY(5px);
}

.scene-story {
  position: relative;
  z-index: 3;
  height: 320svh;
  min-height: 1920px;
  margin-top: -100svh;
  pointer-events: none;
}

.scene-beat {
  position: relative;
  width: 100%;
}

.scene-beat a,
.scene-beat button,
.poster-controls,
.hero-copy,
.optimization-copy {
  pointer-events: auto;
}

.hero {
  height: 92svh;
  min-height: 620px;
}

.hero-copy {
  position: absolute;
  top: 25%;
  left: max(32px, calc((100vw - 1312px) / 2));
  width: 510px;
}

.hero .eyebrow,
.optimization .eyebrow,
.poster-universe .eyebrow {
  color: rgba(228, 235, 231, 0.55);
}

.hero h1 {
  margin: 0 0 24px;
  font-size: 6.15rem;
  line-height: 0.85;
  white-space: nowrap;
}

.hero-dek {
  max-width: 30rem;
  margin-bottom: 30px;
  color: rgba(244, 247, 245, 0.76);
  font-size: 1.22rem;
  line-height: 1.46;
}

.text-link {
  display: inline-flex;
  gap: 0.5rem;
  align-items: center;
  min-height: 44px;
  padding: 0.55rem 0 0.35rem;
  border: 0;
  border-bottom: 1px solid currentColor;
  background: transparent;
  color: inherit;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
}

.text-link:hover {
  color: var(--teal);
}

.text-link--light {
  color: #fff;
}

.hero-next,
.hero-status {
  position: absolute;
  bottom: 21px;
  margin: 0;
  color: rgba(255, 255, 255, 0.46);
  font-family: var(--mono);
  font-size: 0.64rem;
  line-height: 1.4;
  text-transform: uppercase;
}

.hero-next {
  left: max(32px, calc((100vw - 1312px) / 2));
}

.hero-status {
  right: max(32px, calc((100vw - 1312px) / 2));
}

.hero-status span {
  margin-right: 16px;
  color: var(--teal);
}

.optimization {
  height: 108svh;
  min-height: 680px;
}

.optimization-copy {
  position: absolute;
  top: 10%;
  left: max(32px, calc((100vw - 1312px) / 2));
  width: 550px;
  transition: opacity 160ms ease, visibility 0s;
}

.optimization h2,
.poster-universe h2 {
  margin: 0;
  font-size: 4.2rem;
  line-height: 0.96;
}

.optimization-copy > p:last-child {
  max-width: 31rem;
  margin: 28px 0 0;
  color: rgba(244, 247, 245, 0.7);
  font-size: 1.08rem;
  line-height: 1.52;
}

.optimization-note {
  position: absolute;
  right: max(32px, calc((100vw - 1312px) / 2));
  bottom: 7%;
  max-width: 410px;
  margin: 0;
  padding-top: 11px;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  color: rgba(244, 247, 245, 0.52);
  font-family: var(--mono);
  font-size: 0.68rem;
  line-height: 1.55;
  opacity: 0;
  transition: opacity 160ms ease;
}

.optimization-note span {
  display: block;
  margin-bottom: 4px;
  color: var(--teal);
  text-transform: uppercase;
}

#scene-shell[data-phase="interior"] .optimization-copy,
#scene-shell[data-phase="evaluate"] .optimization-copy {
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  transition: opacity 160ms ease, visibility 0s linear 160ms;
}

#scene-shell[data-phase="evaluate"] .optimization-note {
  position: fixed;
  top: 92px;
  bottom: auto;
  opacity: 1;
}

#scene-shell[data-phase="universe"] .optimization-note {
  opacity: 0;
}

#scene-shell.webgl-fallback .optimization-note {
  opacity: 1;
}

.poster-universe {
  height: 120svh;
  min-height: 720px;
}

.poster-controls {
  position: sticky;
  top: calc(100svh - 270px);
  display: grid;
  grid-template-columns: minmax(220px, 0.72fr) minmax(340px, 1.28fr);
  column-gap: 42px;
  width: min(980px, calc(100vw - 128px));
  margin: 0 auto;
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  transition: opacity 160ms ease, visibility 0s linear 160ms;
}

.poster-controls button {
  pointer-events: auto;
}

#scene-shell[data-phase="universe"] .poster-controls,
#scene-shell.webgl-fallback .poster-controls {
  visibility: visible;
  opacity: 1;
  transition: opacity 160ms ease, visibility 0s;
}

@media (min-width: 1101px) {
  #scene-shell[data-universe-view="wide"] .poster-controls {
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
    transition: opacity 160ms ease, visibility 0s linear 160ms;
  }
}

.poster-universe h2 {
  align-self: end;
  max-width: 11ch;
  font-size: 2.45rem;
  line-height: 0.98;
}

.poster-controls > .eyebrow {
  grid-column: 1;
  margin-bottom: 9px;
}

.poster-controls > h2 {
  grid-column: 1;
}

#poster-caption {
  grid-column: 2;
  grid-row: 1 / span 2;
  align-self: end;
  min-height: 94px;
  margin-top: 0;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.22);
}

.poster-caption__meta {
  margin: 0 0 7px;
  color: var(--teal);
  font-family: var(--mono);
  font-size: 0.66rem;
  line-height: 1.4;
  text-transform: uppercase;
}

.poster-caption__row {
  display: flex;
  gap: 20px;
  align-items: flex-end;
  justify-content: space-between;
}

.poster-caption__title {
  max-width: 360px;
  margin: 0;
  font-family: var(--serif);
  font-size: 1.55rem;
  font-weight: 500;
  line-height: 1.1;
}

.poster-caption__inspect {
  flex: 0 0 auto;
  font-size: 0.76rem;
}

#poster-index {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr) 64px;
  gap: 0;
  margin-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.22);
  border-bottom: 1px solid rgba(255, 255, 255, 0.22);
}

.poster-index__steps {
  display: grid;
  grid-template-columns: repeat(8, minmax(0, 1fr));
}

.poster-index__button,
.poster-index__nav {
  position: relative;
  height: 44px;
  padding: 0;
  border: 0;
  border-right: 1px solid rgba(255, 255, 255, 0.14);
  background: transparent;
  color: rgba(255, 255, 255, 0.45);
  font-family: var(--mono);
  font-size: 0.68rem;
  cursor: pointer;
}

.poster-index__button:last-child,
.poster-index__next {
  border-right: 0;
}

.poster-index__nav {
  font-family: var(--sans);
  font-size: 0.7rem;
  font-weight: 700;
}

.poster-index__nav:disabled {
  color: rgba(255, 255, 255, 0.2);
  cursor: default;
}

.poster-index__button::after {
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 2px;
  background: var(--teal);
  content: "";
  opacity: 0;
}

.poster-index__button:hover,
.poster-index__button[aria-current="true"] {
  color: #fff;
}

.poster-index__button[aria-current="true"]::after {
  opacity: 1;
}

.evidence {
  position: relative;
  z-index: 4;
  display: grid;
  grid-template-columns: minmax(260px, 0.78fr) minmax(520px, 1.22fr);
  column-gap: 100px;
  row-gap: 86px;
  padding: 154px max(32px, calc((100vw - 1312px) / 2)) 110px;
  background: var(--paper);
  color: var(--ink);
  scroll-margin-top: 80px;
}

.evidence::before {
  position: absolute;
  top: 0;
  left: max(32px, calc((100vw - 1312px) / 2));
  width: min(760px, calc(100vw - 64px));
  height: 9px;
  background: var(--teal);
  content: "";
}

.evidence::after {
  position: absolute;
  top: 30px;
  left: max(32px, calc((100vw - 1312px) / 2));
  color: #087c68;
  content: "ACCEPTED OUTPUT / EVIDENCE RECORD";
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 700;
}

.evidence-intro h2 {
  max-width: 540px;
  margin: 0;
  font-size: 4.5rem;
  line-height: 0.96;
}

.evidence-intro > p:last-child {
  max-width: 530px;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: 1.06rem;
  line-height: 1.52;
}

.research-record {
  border-top: 1px solid var(--ink);
}

.record-item {
  display: grid;
  grid-template-columns: 48px minmax(145px, 0.6fr) 1fr;
  gap: 18px;
  align-items: baseline;
  padding: 19px 0;
  border-bottom: 1px solid var(--rule);
}

.record-item p,
.record-item h3,
.record-item span {
  margin: 0;
}

.record-item p {
  color: var(--teal);
  font-family: var(--mono);
  font-size: 0.68rem;
}

.record-item h3 {
  font-family: var(--serif);
  font-size: 1.3rem;
  font-weight: 500;
  line-height: 1.1;
}

.record-item span {
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.4;
}

.benchmark-intro {
  align-self: start;
  padding-top: 4px;
}

.benchmark-intro h3 {
  max-width: 500px;
  margin: 0;
  font-family: var(--serif);
  font-size: 2.45rem;
  font-weight: 500;
  line-height: 1.06;
  letter-spacing: 0;
}

.metric-grid {
  margin: 0;
  border-top: 1px solid var(--ink);
}

.metric-grid > div {
  display: grid;
  grid-template-columns: 170px 1fr;
  gap: 24px;
  align-items: baseline;
  padding: 16px 0 17px;
  border-bottom: 1px solid var(--rule);
}

.metric-grid dt {
  font-family: var(--serif);
  font-size: 2.8rem;
  font-weight: 500;
  line-height: 1;
}

.metric-grid dd {
  display: grid;
  gap: 3px;
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.35;
}

.metric-grid strong {
  font-weight: 750;
}

.metric-grid span {
  color: var(--muted);
}

.future-work {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 235px minmax(0, 760px);
  gap: 36px;
  margin: 4px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--ink);
  color: var(--muted);
  font-size: 0.96rem;
  line-height: 1.5;
}

.future-work span {
  color: var(--ink);
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 650;
  text-transform: uppercase;
}

#site-footer {
  position: relative;
  z-index: 4;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 27px max(32px, calc((100vw - 1312px) / 2));
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  background: var(--graphite);
  color: #fff;
  font-family: var(--mono);
  font-size: 0.74rem;
  line-height: 1.4;
}

#site-footer p {
  margin: 0;
}

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

#site-footer a {
  color: rgba(255, 255, 255, 0.65);
  text-decoration: none;
}

#site-footer a:hover {
  color: var(--teal);
}

.poster-dialog {
  width: min(1420px, calc(100vw - 32px));
  max-width: none;
  max-height: min(880px, calc(100svh - 32px));
  padding: 0;
  overflow: auto;
  border: 0;
  border-radius: 0;
  background: var(--paper);
  color: var(--ink);
}

.poster-dialog::backdrop {
  background: rgba(8, 11, 14, 0.9);
}

.dialog-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(280px, 0.45fr);
  min-height: 100%;
}

.dialog-layout img {
  display: block;
  align-self: center;
  width: 100%;
  height: auto;
  object-fit: contain;
  background: #fff;
}

.dialog-copy {
  padding: 70px 44px 40px;
}

.dialog-copy h2 {
  margin: 0;
  font-size: 2.65rem;
  line-height: 0.98;
}

.dialog-copy > p:last-of-type {
  margin: 34px 0 28px;
  color: var(--muted);
  line-height: 1.5;
}

#dialog-metadata {
  display: grid;
  grid-template-columns: minmax(76px, auto) 1fr;
  gap: 10px 18px;
  margin: 30px 0 0;
  padding: 17px 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  font-size: 0.88rem;
  line-height: 1.35;
}

#dialog-metadata dt {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.7rem;
}

#dialog-metadata dd {
  margin: 0;
}

.dialog-close {
  position: absolute;
  z-index: 2;
  top: 13px;
  right: 13px;
  width: 44px;
  height: 44px;
  padding: 0 0 5px;
  border: 1px solid var(--rule);
  border-radius: 0;
  background: var(--paper);
  font-size: 2rem;
  line-height: 1;
  cursor: pointer;
}

html.dialog-open,
html.dialog-open body {
  overflow: hidden;
}

@media (max-width: 1100px) {
  .hero-copy,
  .optimization-copy {
    width: 470px;
  }

  .hero h1 {
    font-size: 6.15rem;
  }

  .optimization h2,
  .poster-universe h2 {
    font-size: 3.75rem;
  }

  .engine-label--context,
  .engine-label--designer,
  .engine-label--render,
  .engine-label--evaluate,
  .engine-label--repair {
    display: none;
  }

  .evidence {
    grid-template-columns: 1fr;
    gap: 66px;
  }

  .evidence-intro h2 {
    font-size: 4rem;
  }

  .research-record,
  .metric-grid {
    max-width: 780px;
  }
}

@media (min-width: 761px) and (max-width: 1100px) {
  .hero-copy {
    top: 22%;
  }

  .hero h1 {
    font-size: 5.3rem;
  }

  .engine-label--source {
    top: 53%;
  }

  .optimization-copy {
    top: 11%;
    padding: 22px 24px 24px;
    background: rgba(7, 9, 12, 0.94);
    isolation: isolate;
  }

  .optimization-copy::before {
    display: none;
  }

  .poster-controls {
    top: calc(100svh - 344px);
    grid-template-columns: minmax(190px, 0.72fr) minmax(300px, 1.28fr);
    column-gap: 28px;
    width: calc(100vw - 64px);
    margin: 0 32px;
  }

  .poster-universe h2 {
    max-width: 12ch;
  }

  .poster-universe h2 {
    font-size: 2.25rem;
  }
}

@media (max-width: 760px) {
  :root {
    --page: calc(100vw - 40px);
  }

  .intro-title {
    top: 92px;
    left: 20px;
    width: calc(100vw - 40px);
  }

  .intro-phase {
    height: 112px;
    font-size: clamp(3rem, 15vw, 4.5rem);
  }

  .intro-phase span {
    width: min-content;
    min-width: 8ch;
  }

  .intro-instrument {
    right: 20px;
    bottom: 42px;
    width: calc(100vw - 40px);
  }

  .intro-output-key {
    right: 20px;
    bottom: 38px;
    grid-template-columns: repeat(2, auto);
    gap: 7px 18px;
    max-width: calc(100vw - 40px);
    font-size: 0.58rem;
  }

  .intro-controls {
    top: 24px;
    right: 20px;
  }

  .intro-controls button {
    min-height: 38px;
    padding: 7px 10px;
  }

  .site-header {
    grid-template-columns: 1fr auto;
    row-gap: 2px;
    padding: 8px 20px 5px;
  }

  .site-header nav {
    grid-column: 1 / -1;
    grid-row: 2;
    gap: 15px;
    font-size: 0.8rem;
  }

  .header-cta {
    font-size: 0.78rem;
  }

  #scene-shell,
  .scene-story {
    min-height: 2240px;
  }

  .hero {
    height: 92svh;
    min-height: 700px;
  }

  .optimization {
    height: 108svh;
    min-height: 770px;
  }

  .poster-universe {
    height: 120svh;
    min-height: 770px;
  }

  .hero-copy,
  .optimization-copy,
  .poster-controls {
    right: 20px;
    left: 20px;
    width: auto;
  }

  .hero-copy {
    top: 96px;
    right: 0;
    left: 0;
    width: 100%;
    padding: 30px 20px 26px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(7, 9, 12, 0.96);
  }

  .hero h1 {
    margin-bottom: 18px;
    font-size: 3.85rem;
  }

  .hero-dek {
    max-width: 22rem;
    font-size: 1rem;
  }

  .hero-next,
  .hero-status {
    display: none;
  }

  .optimization-copy {
    top: 96px;
    right: 0;
    left: 0;
    width: 100%;
    padding: 24px 20px 26px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(7, 9, 12, 0.96);
  }

  .optimization-copy::before {
    display: none;
  }

  .optimization h2,
  .poster-universe h2 {
    max-width: 10ch;
    font-size: 2.85rem;
  }

  .optimization-copy > p:last-child {
    max-width: 24rem;
    font-size: 0.98rem;
  }

  .optimization-note {
    right: 20px;
    bottom: 7%;
    left: 20px;
    max-width: 380px;
    padding: 12px 0;
    background: rgba(7, 9, 12, 0.94);
  }

  #scene-shell[data-phase="evaluate"] .optimization-note {
    top: 96px;
    right: 0;
    left: 0;
    max-width: none;
    padding: 18px 20px;
  }

  .poster-controls {
    position: sticky;
    top: calc(100svh - 387px);
    display: block;
    right: auto;
    left: auto;
    width: calc(100vw - 40px);
    margin: 0 20px;
  }

  .poster-universe h2 {
    max-width: 12ch;
    font-size: 2rem;
  }

  #poster-caption {
    min-height: 78px;
    margin-top: 12px;
  }

  .poster-caption__title {
    font-size: 1.25rem;
  }

  .poster-caption__meta {
    font-size: 0.75rem;
  }

  #poster-index {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .poster-index__steps {
    grid-column: 1 / -1;
    grid-row: 2;
  }

  .poster-index__previous {
    grid-column: 1;
    grid-row: 1;
  }

  .poster-index__next {
    grid-column: 2;
    grid-row: 1;
  }

  .poster-index__button:nth-child(-n + 4) {
    border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  }

  .poster-index__nav {
    border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  }

  .evidence {
    gap: 54px;
    padding: 126px 20px 76px;
    scroll-margin-top: 96px;
  }

  .evidence-intro h2 {
    font-size: 3.1rem;
  }

  .record-item {
    grid-template-columns: 38px 1fr;
    gap: 4px 12px;
  }

  .record-item p {
    grid-row: span 2;
  }

  .record-item span {
    font-size: 0.84rem;
  }

  .benchmark-intro h3 {
    font-size: 2rem;
  }

  .metric-grid > div {
    grid-template-columns: 118px 1fr;
    gap: 16px;
  }

  .metric-grid dt {
    font-size: 2.15rem;
  }

  .future-work {
    grid-template-columns: 1fr;
    gap: 9px;
  }

  #site-footer {
    align-items: flex-start;
    flex-direction: column;
    padding: 24px 20px;
  }

  .dialog-layout {
    grid-template-columns: 1fr;
  }

  .dialog-copy {
    padding: 38px 24px 30px;
  }

  .dialog-copy h2 {
    font-size: 2.55rem;
  }
}

@media (max-width: 760px) {
  .engine-label {
    padding: 4px 5px;
    font-size: 0.65rem;
  }

  .engine-label--context,
  .engine-label--designer,
  .engine-label--render,
  .engine-label--evaluate {
    display: none;
  }

  .engine-label--instrument {
    top: 48%;
    right: auto;
    left: 20px;
  }

  .engine-label--source {
    top: 57%;
    left: 20px;
  }

  .engine-label--repair {
    top: auto;
    right: 20px;
    bottom: 16%;
  }

  .engine-label--trace {
    right: 20px;
    bottom: 8%;
  }

  .fallback-composition {
    inset: 39% 20px auto;
    grid-template-columns: 0.55fr 1fr;
    gap: 14px;
    min-height: 0;
  }

  .fallback-source {
    gap: 7px;
  }

  .fallback-source span {
    min-height: 40px;
    padding: 7px;
    font-size: 0.58rem;
  }

  .fallback-engine {
    padding: 9px;
    border-width: 5px;
    box-shadow: 8px 9px 0 rgba(37, 42, 49, 0.75);
  }

  .fallback-engine li {
    min-height: 29px;
    padding: 5px 7px;
    font-size: 0.68rem;
  }

  .fallback-output {
    grid-column: 1 / -1;
    width: 100%;
    padding: 8px;
    box-shadow: 8px 9px 0 rgba(37, 42, 49, 0.72);
  }
}

@media (max-width: 380px) {
  #scene-shell[data-phase="dormant"] .engine-label--instrument {
    top: 60%;
  }

  #scene-shell[data-phase="dormant"] .engine-label--source {
    top: auto;
    bottom: 7%;
  }

  .hero h1 {
    font-size: 3.45rem;
  }

  .optimization h2,
  .poster-universe h2,
  .evidence-intro h2 {
    font-size: 2.55rem;
  }

  .poster-caption__row {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }
}

@media (max-width: 760px) and (max-height: 700px) {
  .hero {
    min-height: 620px;
  }

  .optimization,
  .poster-universe {
    min-height: 700px;
  }
}

@media (max-width: 380px) and (max-height: 700px) {
  .poster-universe {
    height: calc(2240px - max(92svh, 620px) - max(108svh, 700px));
  }

  .poster-controls {
    top: calc(100svh - 345px);
  }

  .poster-universe h2 {
    font-size: 2rem;
  }

  .poster-caption__row {
    align-items: flex-end;
    flex-direction: row;
    gap: 12px;
  }

  #poster-caption,
  #poster-index {
    margin-top: 16px;
  }
}

@media (max-height: 700px) and (min-width: 761px) {
  .hero-copy {
    top: 22%;
  }

  .hero h1 {
    font-size: 5.85rem;
  }

  .hero-dek {
    font-size: 1.05rem;
  }

  .optimization-copy {
    top: 10%;
  }

  .poster-controls {
    top: calc(100svh - 260px);
  }

  .optimization h2 {
    font-size: 3.45rem;
  }

  .poster-universe h2 {
    font-size: 2.2rem;
  }
}

@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;
  }
}

/* Research chapters added below the Artifact Engine. */
.evolution,
.artifact-studies,
.harness,
.resources {
  position: relative;
  z-index: 4;
  scroll-margin-top: 66px;
}

.artifact-studies {
  position: relative;
  padding: 148px max(32px, calc((100vw - 1312px) / 2)) 142px;
  overflow: hidden;
  background: #dfe7e2;
  color: var(--ink);
}

.artifact-studies::after {
  position: absolute;
  top: 62px;
  right: max(22px, calc((100vw - 1390px) / 2));
  color: rgba(8, 124, 104, 0.08);
  font-family: var(--serif);
  font-size: 18rem;
  line-height: 0.8;
  content: "03";
  pointer-events: none;
}

.artifact-studies__heading {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.55fr);
  gap: 38px 90px;
  align-items: end;
  margin-bottom: 78px;
}

.artifact-studies__heading .eyebrow {
  grid-column: 1 / -1;
  margin-bottom: -18px;
  color: #087c68;
}

.artifact-studies__heading h2 {
  margin: 0;
  font-size: 4.7rem;
  line-height: 0.96;
}

.artifact-studies__heading > p:last-child {
  margin: 0;
  color: #4e625c;
  font-size: 1.08rem;
  line-height: 1.58;
}

.artifact-tabs {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid #84968f;
  border-bottom: 1px solid #84968f;
}

.artifact-tabs button {
  display: flex;
  gap: 16px;
  align-items: center;
  min-height: 66px;
  padding: 0 22px;
  border: 0;
  border-right: 1px solid #a9b8b2;
  border-radius: 0;
  background: transparent;
  color: #65766f;
  font-family: var(--serif);
  font-size: 1.25rem;
  text-align: left;
  cursor: pointer;
  transition: background-color 160ms ease, color 160ms ease;
}

.artifact-tabs button:last-child {
  border-right: 0;
}

.artifact-tabs button span {
  color: #71827b;
  font-family: var(--mono);
  font-size: 0.62rem;
}

.artifact-tabs button:hover,
.artifact-tabs button[aria-selected="true"] {
  background: #0b4f44;
  color: #fff;
}

.artifact-tabs button[aria-selected="true"] span {
  color: #7be0c3;
}

.artifact-study {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.32fr) minmax(320px, 0.68fr);
  min-height: 620px;
  border-right: 1px solid #84968f;
  border-bottom: 1px solid #84968f;
  border-left: 1px solid #84968f;
  background: #edf1ed;
}

.artifact-study[hidden] {
  display: none;
}

.artifact-study__stage {
  position: relative;
  display: grid;
  min-width: 0;
  min-height: 620px;
  place-items: center;
  overflow: hidden;
  border-right: 1px solid #84968f;
  background: #101719;
}

.artifact-stage-label {
  position: absolute;
  right: 24px;
  bottom: 20px;
  left: 24px;
  display: flex;
  justify-content: space-between;
  margin: 0;
  color: rgba(255, 255, 255, 0.5);
  font-family: var(--mono);
  font-size: 0.61rem;
  text-transform: uppercase;
}

.slide-filmstrip {
  position: relative;
  width: min(86%, 830px);
  aspect-ratio: 1.64;
}

.slide-filmstrip img {
  position: absolute;
  width: 72%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, 0.32);
  box-shadow: 0 28px 54px rgba(0, 0, 0, 0.34);
}

.slide-filmstrip img:nth-child(1) {
  top: 2%;
  left: 0;
  transform: rotate(-3deg);
}

.slide-filmstrip img:nth-child(2) {
  top: 20%;
  right: 0;
  z-index: 2;
  transform: rotate(2deg);
}

.slide-filmstrip img:nth-child(3) {
  bottom: 1%;
  left: 10%;
  z-index: 3;
  transform: rotate(-0.5deg);
}

.browser-specimen {
  width: min(76%, 660px);
  height: 82%;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.28);
  background: #f4f1e9;
  box-shadow: 22px 28px 0 rgba(0, 0, 0, 0.24);
}

.browser-specimen__bar {
  display: flex;
  gap: 7px;
  align-items: center;
  height: 34px;
  padding: 0 12px;
  border-bottom: 1px solid #c9cbc5;
  background: #e7e8e3;
}

.browser-specimen__bar i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #789189;
}

.browser-specimen__bar span {
  margin-left: auto;
  color: #65736e;
  font-family: var(--mono);
  font-size: 0.55rem;
  text-transform: uppercase;
}

.browser-specimen__viewport {
  height: calc(100% - 34px);
  overflow: hidden;
}

.browser-specimen__viewport img {
  display: block;
  width: 100%;
  height: auto;
  transform: translateY(0);
  transition: transform 8s cubic-bezier(0.22, 0.72, 0.18, 1);
}

.browser-specimen:hover .browser-specimen__viewport img {
  transform: translateY(calc(-100% + 470px));
}

.video-specimen {
  position: relative;
  width: min(86%, 860px);
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.28);
  background: #080b0e;
  box-shadow: 22px 28px 0 rgba(0, 0, 0, 0.24);
}

.video-specimen video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.video-specimen__play {
  position: absolute;
  right: 18px;
  bottom: 17px;
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 50%;
  background: rgba(8, 11, 14, 0.58);
  color: #fff;
  font-size: 0.72rem;
}

.artifact-study__copy {
  display: flex;
  flex-direction: column;
  padding: 58px 44px 38px;
}

.artifact-study__index {
  margin: 0 0 28px;
  color: #087c68;
  font-family: var(--mono);
  font-size: 0.64rem;
  font-weight: 700;
  text-transform: uppercase;
}

.artifact-study__copy h3 {
  margin: 0 0 28px;
  font-family: var(--serif);
  font-size: 3rem;
  font-weight: 500;
  line-height: 0.98;
}

.artifact-study__copy > p:not(.artifact-study__index) {
  margin: 0;
  color: #566761;
  font-size: 0.96rem;
  line-height: 1.58;
}

.artifact-study__copy dl {
  margin: auto 0 0;
  border-top: 1px solid #87958f;
}

.artifact-study__copy dl > div {
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 18px;
  padding: 13px 0;
  border-bottom: 1px solid #b9c2bd;
}

.artifact-study__copy dt {
  color: #697a73;
  font-family: var(--mono);
  font-size: 0.59rem;
  text-transform: uppercase;
}

.artifact-study__copy dd {
  margin: 0;
  font-size: 0.78rem;
}

.evolution {
  padding: 150px max(32px, calc((100vw - 1312px) / 2)) 140px;
  overflow: hidden;
  background: #080b0e;
  color: #f5f6f2;
}

.evolution::before {
  position: absolute;
  top: 0;
  right: max(32px, calc((100vw - 1312px) / 2));
  left: max(32px, calc((100vw - 1312px) / 2));
  height: 1px;
  background: rgba(255, 255, 255, 0.15);
  content: "";
}

.evolution-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.58fr);
  gap: 38px 90px;
  align-items: end;
  margin-bottom: 86px;
}

.evolution-heading .eyebrow {
  grid-column: 1 / -1;
  margin-bottom: -18px;
  color: var(--teal);
}

.evolution-heading h2,
.harness-heading h2,
.resources h2 {
  margin: 0;
  font-size: 4.7rem;
  line-height: 0.96;
}

.evolution-heading > p:last-child,
.harness-heading > p:last-child {
  margin: 0;
  color: rgba(239, 244, 241, 0.62);
  font-size: 1.08rem;
  line-height: 1.58;
}

.evolution-workbench {
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(330px, 0.72fr);
  gap: 72px;
  align-items: start;
}

.evolution-visual__label {
  display: flex;
  justify-content: space-between;
  margin: 0 0 10px;
  color: rgba(255, 255, 255, 0.48);
  font-family: var(--mono);
  font-size: 0.66rem;
  text-transform: uppercase;
}

#evolution-frame-status[data-status="accepted"] {
  color: var(--teal);
}

#evolution-frame-status[data-status="rejected"] {
  color: var(--vermilion);
}

#evolution-frame-status[data-status="final"] {
  color: #f1cf67;
}

.evolution-poster-stack {
  position: relative;
  aspect-ratio: 2 / 1;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: #f5f4f0;
  box-shadow: 22px 24px 0 #181d21;
}

.evolution-poster-stack img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  opacity: 1;
  transition: opacity 180ms ease, transform 420ms ease;
}

.evolution-poster-stack img.is-changing {
  opacity: 0.35;
  transform: scale(0.995);
}

.evolution-scan {
  position: absolute;
  top: 0;
  bottom: 0;
  left: -6%;
  width: 2px;
  background: var(--teal);
  box-shadow: 0 0 18px rgba(99, 214, 179, 0.8);
  opacity: 0.72;
  animation: evolution-scan 4.6s ease-in-out infinite;
}

@keyframes evolution-scan {
  0%, 12% { left: -6%; opacity: 0; }
  20% { opacity: 0.72; }
  78% { opacity: 0.72; }
  88%, 100% { left: 106%; opacity: 0; }
}

.evolution-diagnostic {
  display: grid;
  grid-template-columns: 145px 1fr;
  gap: 20px;
  padding: 34px 0 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.evolution-diagnostic p,
.evolution-diagnostic strong {
  margin: 0;
}

.evolution-diagnostic p,
.evolution-component,
.result-index {
  color: var(--teal);
  font-family: var(--mono);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
}

.evolution-diagnostic strong {
  font-size: 0.88rem;
  font-weight: 600;
  line-height: 1.45;
}

.patch-view {
  display: grid;
  min-height: 86px;
  margin: 0;
  padding: 18px 0 0 165px;
  overflow: hidden;
  color: #b7f1dd;
  font-family: var(--mono);
  font-size: 0.68rem;
  line-height: 1.7;
  white-space: pre-wrap;
}

.patch-line {
  opacity: 0;
  animation: patch-line-in 260ms ease forwards;
  animation-delay: calc(var(--line-index) * 90ms);
}

.patch-line--negative {
  color: #ff9d8c;
}

@keyframes patch-line-in {
  from { opacity: 0; transform: translateX(-8px); }
  to { opacity: 1; transform: translateX(0); }
}

.evolution-rail {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  margin-bottom: 48px;
}

.evolution-rail::before {
  position: absolute;
  top: 16px;
  right: 5%;
  left: 5%;
  height: 1px;
  background: rgba(255, 255, 255, 0.2);
  content: "";
}

.evolution-node {
  position: relative;
  display: grid;
  gap: 6px;
  justify-items: center;
  min-width: 0;
  padding: 0 6px;
  border: 0;
  background: transparent;
  color: rgba(255, 255, 255, 0.44);
  font-family: var(--sans);
  cursor: pointer;
}

.evolution-node > span {
  z-index: 1;
  display: grid;
  width: 33px;
  height: 33px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.3);
  background: #080b0e;
  color: rgba(255, 255, 255, 0.62);
  font-family: var(--mono);
  font-size: 0.62rem;
}

.evolution-node strong {
  margin-top: 6px;
  font-size: 0.7rem;
  line-height: 1.25;
}

.evolution-node small {
  display: none;
}

.evolution-node[aria-current="step"] {
  color: #fff;
}

.evolution-node[aria-current="step"] > span {
  border-color: var(--teal);
  background: var(--teal);
  color: var(--ink);
}

.evolution-node--rejected > span {
  border-color: rgba(232, 106, 82, 0.7);
}

.evolution-node--rejected[aria-current="step"] > span {
  background: var(--vermilion);
}

.evolution-node--final > span {
  border-color: rgba(241, 207, 103, 0.75);
}

.evolution-node--final[aria-current="step"] > span {
  border-color: #f1cf67;
  background: #f1cf67;
}

.evolution-component {
  margin: 0 0 18px;
}

.evolution-copy h3 {
  max-width: 11ch;
  margin: 0 0 24px;
  font-family: var(--serif);
  font-size: 3rem;
  font-weight: 500;
  line-height: 1;
}

.evolution-copy > p:not(.evolution-component, .evolution-disclosure) {
  max-width: 34rem;
  margin: 0;
  color: rgba(239, 244, 241, 0.65);
  font-size: 1rem;
  line-height: 1.58;
}

.evolution-disclosure {
  max-width: 34rem;
  margin: 44px 0 0;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  color: rgba(255, 255, 255, 0.38);
  font-family: var(--mono);
  font-size: 0.62rem;
  line-height: 1.55;
}

.harness {
  padding: 146px max(32px, calc((100vw - 1312px) / 2)) 138px;
  background: #f0ede5;
  color: var(--ink);
}

.harness-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.55fr);
  gap: 38px 96px;
  align-items: end;
}

.harness-heading .eyebrow {
  grid-column: 1 / -1;
  margin-bottom: -18px;
  color: #087c68;
}

.harness-heading > p:last-child {
  color: var(--muted);
}

.harness-loop {
  position: relative;
  margin-top: 96px;
  min-height: 620px;
  overflow: hidden;
  border: 1px solid #aeb5b0;
  background:
    linear-gradient(rgba(11, 79, 68, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11, 79, 68, 0.045) 1px, transparent 1px),
    #f8f8f4;
  background-size: 32px 32px;
}

.meta-loop-heading {
  position: absolute;
  top: 32px;
  left: 40px;
  display: flex;
  align-items: baseline;
  gap: 20px;
}

.meta-loop-heading span,
.meta-loop-heading small,
.meta-loop-step span,
.meta-loop-step small,
.poster-harness-core__label span,
.meta-loop-return {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.62rem;
  text-transform: uppercase;
}

.meta-loop-heading span,
.meta-loop-return span {
  color: #087c68;
  font-weight: 700;
}

.meta-loop-heading strong {
  font-family: var(--serif);
  font-size: 1.35rem;
  font-weight: 500;
}

.meta-loop-orbit {
  position: absolute;
  top: 118px;
  right: 9%;
  bottom: 74px;
  left: 9%;
  border: 1px solid #4f8d80;
  border-radius: 50%;
}

.meta-loop-orbit::before,
.meta-loop-orbit::after {
  position: absolute;
  width: 9px;
  height: 9px;
  border-top: 2px solid #087c68;
  border-right: 2px solid #087c68;
  content: "";
}

.meta-loop-orbit::before {
  top: 13%;
  right: 8%;
  transform: rotate(38deg);
}

.meta-loop-orbit::after {
  bottom: 13%;
  left: 8%;
  transform: rotate(218deg);
}

.meta-loop-step {
  position: absolute;
  display: grid;
  min-width: 150px;
  gap: 3px;
  padding: 10px 12px;
  background: #f8f8f4;
}

.meta-loop-step::before {
  position: absolute;
  top: 50%;
  left: -7px;
  width: 8px;
  height: 8px;
  border: 2px solid #087c68;
  border-radius: 50%;
  background: #f8f8f4;
  content: "";
  transform: translateY(-50%);
}

.meta-loop-step strong {
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.22rem;
  font-weight: 500;
}

.meta-loop-step--observe {
  top: 16%;
  left: -5%;
}

.meta-loop-step--diagnose {
  top: -7%;
  left: 36%;
}

.meta-loop-step--update {
  top: 20%;
  right: -6%;
}

.meta-loop-step--validate {
  right: 7%;
  bottom: -2%;
}

.poster-harness-core {
  position: absolute;
  top: 248px;
  right: 18%;
  left: 18%;
  z-index: 2;
  padding: 26px 28px 22px;
  border: 1px solid #087c68;
  background: #edf5ef;
  box-shadow: 12px 12px 0 rgba(10, 59, 51, 0.09);
}

.poster-harness-core__label {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 24px;
}

.poster-harness-core__label strong {
  font-family: var(--serif);
  font-size: 1.65rem;
  font-weight: 500;
}

.poster-harness-core > p {
  margin: 20px 0 0;
  color: #3f625a;
  font-family: var(--mono);
  font-size: 0.62rem;
  text-align: center;
  text-transform: uppercase;
}

.harness-stage-list {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0;
}

.harness-stage-list::before {
  position: absolute;
  top: 50%;
  right: 5%;
  left: 5%;
  height: 1px;
  background: #78a89c;
  content: "";
}

.harness-stage {
  position: relative;
  z-index: 1;
  display: grid;
  min-height: 96px;
  align-content: space-between;
  padding: 10px 12px;
  border: 0;
  border-right: 1px solid #b6cdc6;
  border-radius: 0;
  background: transparent;
  color: var(--ink);
  text-align: left;
  cursor: pointer;
  transition: background-color 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.harness-stage:hover,
.harness-stage[aria-pressed="true"] {
  background: #d9ede4;
  transform: translateY(-3px);
}

.harness-stage:last-child {
  border-right: 0;
}

.harness-stage span,
.harness-stage small {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.61rem;
  line-height: 1.35;
  text-transform: uppercase;
}

.harness-stage strong {
  font-family: var(--serif);
  font-size: 1.1rem;
  font-weight: 500;
}

.meta-loop-return {
  position: absolute;
  bottom: 32px;
  left: 40px;
  display: flex;
  gap: 16px;
  margin: 0;
}

.harness-detail {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.9fr);
  gap: 80px;
  align-items: start;
  min-height: 180px;
  padding-top: 46px;
}

.harness-protocol {
  display: flex;
  gap: 24px;
  margin: 22px 0 0;
  padding: 15px 0;
  border-top: 1px solid #aeb5b0;
  border-bottom: 1px solid #aeb5b0;
  color: #52665f;
  font-family: var(--mono);
  font-size: 0.63rem;
  line-height: 1.5;
  text-transform: uppercase;
}

.harness-protocol span {
  flex: 0 0 auto;
  color: #087c68;
  font-weight: 700;
}

.harness-detail__index {
  margin: 0 0 12px;
  color: #087c68;
  font-family: var(--mono);
  font-size: 0.65rem;
  text-transform: uppercase;
}

.harness-detail h3 {
  max-width: 18ch;
  margin: 0;
  font-family: var(--serif);
  font-size: 2.45rem;
  font-weight: 500;
  line-height: 1.04;
}

.harness-detail dl {
  margin: 0;
  border-top: 1px solid var(--ink);
}

.harness-detail dl > div {
  display: grid;
  grid-template-columns: 84px 1fr;
  gap: 20px;
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
}

.harness-detail dt {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.64rem;
  text-transform: uppercase;
}

.harness-detail dd {
  margin: 0;
  font-size: 0.92rem;
}

.poster-index__steps {
  grid-template-columns: repeat(12, minmax(0, 1fr));
}

.results {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: minmax(260px, 0.78fr) minmax(520px, 1.22fr);
  gap: 72px 100px;
  padding-top: 24px;
  scroll-margin-top: 92px;
}

.results-heading h3 {
  max-width: 510px;
  margin: 0;
  font-family: var(--serif);
  font-size: 3.2rem;
  font-weight: 500;
  line-height: 1;
}

.result-block--transfer {
  grid-column: 2;
  grid-row: 1 / span 2;
}

.result-block__heading {
  display: grid;
  grid-template-columns: minmax(220px, 0.8fr) minmax(180px, 0.55fr);
  gap: 40px;
  align-items: end;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--ink);
}

.result-block h4 {
  margin: 8px 0 0;
  font-family: var(--serif);
  font-size: 2rem;
  font-weight: 500;
  line-height: 1.05;
}

.result-block__heading > p {
  margin: 0;
  color: var(--muted);
  font-size: 0.83rem;
  line-height: 1.45;
}

.transfer-chart {
  display: grid;
  gap: 19px;
  padding-top: 28px;
}

.transfer-row > p {
  display: flex;
  justify-content: space-between;
  margin: 0 0 8px;
  font-size: 0.76rem;
}

.transfer-row > p strong {
  color: #087c68;
  font-family: var(--mono);
  font-size: 0.68rem;
}

.transfer-track {
  position: relative;
  height: 10px;
  margin-right: 44px;
  background: #d4d4cf;
}

.transfer-before,
.transfer-gain {
  position: absolute;
  top: 0;
  bottom: 0;
}

.transfer-before {
  left: 0;
  background: #343c3f;
}

.transfer-gain {
  background: var(--teal);
}

.transfer-track i {
  position: absolute;
  top: -3px;
  margin-left: 8px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.61rem;
  font-style: normal;
}

.result-pair {
  display: grid;
  gap: 54px;
}

.leaderboard {
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--ink);
}

.leaderboard li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
}

.leaderboard li:first-child {
  color: #087c68;
}

.leaderboard span {
  font-size: 0.84rem;
}

.leaderboard b {
  display: inline-block;
  width: 32px;
  font-family: var(--mono);
  font-size: 0.61rem;
}

.leaderboard strong {
  font-family: var(--serif);
  font-size: 1.65rem;
  font-weight: 500;
}

.result-scope {
  margin: 12px 0 0;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.6rem;
}

.human-score {
  display: flex;
  gap: 18px;
  align-items: end;
  padding: 22px 0 18px;
}

.human-score strong {
  font-family: var(--serif);
  font-size: 4.1rem;
  font-weight: 500;
  line-height: 0.9;
}

.human-score span {
  max-width: 90px;
  color: var(--muted);
  font-size: 0.76rem;
  line-height: 1.25;
}

.result-block--human dl {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 0;
  border-top: 1px solid var(--ink);
}

.result-block--human dl > div {
  padding: 13px 8px 0 0;
}

.result-block--human dt {
  font-family: var(--serif);
  font-size: 1.45rem;
}

.result-block--human dd {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 0.7rem;
}

.resources {
  display: grid;
  grid-template-columns: minmax(230px, 0.7fr) minmax(560px, 1.3fr);
  gap: 80px;
  padding: 110px max(32px, calc((100vw - 1312px) / 2));
  background: #111518;
  color: #fff;
}

.resources h2 {
  font-size: 3.8rem;
}

.resource-list {
  border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.resource-link {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 20px;
  align-items: center;
  min-height: 76px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
  color: #fff;
  text-decoration: none;
  transition: color 160ms ease, padding-left 160ms ease;
}

a.resource-link:hover {
  padding-left: 9px;
  color: var(--teal);
}

.resource-link > b {
  display: grid;
  width: 31px;
  height: 31px;
  place-items: center;
  border: 1px solid currentColor;
  border-radius: 50%;
  font-family: var(--mono);
  font-size: 0.64rem;
}

.resource-link > span {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.resource-link strong {
  font-family: var(--serif);
  font-size: 1.35rem;
  font-weight: 500;
}

.resource-link small {
  color: rgba(255, 255, 255, 0.44);
  font-size: 0.68rem;
}

.resource-link--pending {
  color: rgba(255, 255, 255, 0.46);
}

@media (max-width: 1050px) {
  .evolution-heading,
  .artifact-studies__heading,
  .harness-heading,
  .evolution-workbench,
  .harness-detail,
  .resources {
    grid-template-columns: 1fr;
  }

  .evolution-heading .eyebrow,
  .artifact-studies__heading .eyebrow,
  .harness-heading .eyebrow {
    margin-bottom: -10px;
  }

  .evolution-heading > p:last-child,
  .artifact-studies__heading > p:last-child,
  .harness-heading > p:last-child {
    max-width: 620px;
  }

  .evolution-copy {
    display: grid;
    grid-template-columns: minmax(230px, 0.65fr) minmax(0, 1fr);
    gap: 0 50px;
  }

  .evolution-rail,
  .evolution-disclosure {
    grid-column: 1 / -1;
  }

  .evolution-component {
    grid-column: 1;
  }

  .evolution-copy h3,
  .evolution-copy > p:not(.evolution-component, .evolution-disclosure) {
    grid-column: 2;
  }

  .evolution-copy h3 {
    grid-row: 2;
  }

  .evolution-copy > p:not(.evolution-component, .evolution-disclosure) {
    grid-row: 2 / span 2;
    margin-top: 110px;
  }

  .harness-stage-list {
    grid-template-columns: repeat(5, minmax(150px, 1fr));
    overflow-x: auto;
    padding-bottom: 8px;
  }

  .meta-loop-heading {
    right: 32px;
    flex-wrap: wrap;
  }

  .poster-harness-core {
    right: 11%;
    left: 11%;
  }

  .results {
    grid-template-columns: 1fr;
    gap: 60px;
  }

  .artifact-study {
    grid-template-columns: 1fr;
  }

  .artifact-study__stage {
    min-height: 560px;
    border-right: 0;
    border-bottom: 1px solid #84968f;
  }

  .artifact-study__copy {
    min-height: 470px;
  }

  .result-block--transfer {
    grid-column: 1;
    grid-row: auto;
  }

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

@media (max-width: 760px) {
  .site-header nav a:nth-child(-n + 2) {
    display: none;
  }

  .evolution,
  .artifact-studies,
  .harness {
    padding: 104px 20px 86px;
  }

  .evolution-heading,
  .artifact-studies__heading,
  .harness-heading {
    gap: 26px;
    margin-bottom: 54px;
  }

  .evolution-heading h2,
  .artifact-studies__heading h2,
  .harness-heading h2 {
    font-size: 3rem;
  }

  .evolution-workbench {
    gap: 52px;
  }

  .artifact-studies::after {
    top: 48px;
    right: -12px;
    font-size: 9rem;
  }

  .artifact-tabs button {
    min-height: 58px;
    justify-content: center;
    padding: 0 10px;
    font-size: 1rem;
  }

  .artifact-study,
  .artifact-study__stage {
    min-height: 420px;
  }

  .artifact-study__stage {
    padding: 28px 0 52px;
  }

  .slide-filmstrip {
    width: 91%;
  }

  .browser-specimen {
    width: 82%;
    height: 86%;
  }

  .browser-specimen:hover .browser-specimen__viewport img {
    transform: none;
  }

  .video-specimen {
    width: 91%;
  }

  .artifact-study__copy {
    min-height: 440px;
    padding: 42px 24px 30px;
  }

  .artifact-study__copy h3 {
    font-size: 2.45rem;
  }

  .harness-protocol {
    align-items: flex-start;
    flex-direction: column;
    gap: 7px;
  }

  .evolution-poster-stack {
    box-shadow: 10px 12px 0 #181d21;
  }

  .evolution-diagnostic {
    grid-template-columns: 1fr;
    gap: 8px;
    padding-top: 28px;
  }

  .patch-view {
    padding-left: 0;
  }

  .evolution-copy {
    display: block;
  }

  .evolution-rail {
    overflow-x: auto;
    grid-template-columns: repeat(5, minmax(88px, 1fr));
    margin-right: -20px;
    margin-left: -20px;
    padding: 0 20px 12px;
  }

  .evolution-rail::before {
    right: 30px;
    left: 30px;
  }

  .evolution-copy h3 {
    font-size: 2.35rem;
  }

  .evolution-copy > p:not(.evolution-component, .evolution-disclosure) {
    margin-top: 0;
  }

  .harness-loop {
    margin-top: 56px;
    min-height: 880px;
  }

  .meta-loop-heading {
    top: 24px;
    right: 20px;
    left: 20px;
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 5px 16px;
  }

  .meta-loop-heading small {
    grid-column: 1 / -1;
  }

  .meta-loop-orbit {
    top: 150px;
    right: 16px;
    bottom: 96px;
    left: 16px;
    border-radius: 48%;
  }

  .meta-loop-step {
    min-width: 118px;
    padding: 7px 9px;
  }

  .meta-loop-step strong {
    font-size: 1rem;
  }

  .meta-loop-step--observe {
    top: 9%;
    left: -2%;
  }

  .meta-loop-step--diagnose {
    top: 7%;
    right: -2%;
    left: auto;
  }

  .meta-loop-step--update {
    top: auto;
    right: -2%;
    bottom: 13%;
  }

  .meta-loop-step--validate {
    right: auto;
    bottom: 7%;
    left: -2%;
  }

  .poster-harness-core {
    top: 285px;
    right: 34px;
    left: 34px;
    padding: 22px 18px 18px;
  }

  .poster-harness-core__label {
    margin-bottom: 16px;
  }

  .harness-stage-list {
    grid-template-columns: 1fr;
    overflow: visible;
    padding: 0;
  }

  .harness-stage {
    grid-template-columns: 28px minmax(72px, 0.55fr) minmax(0, 1fr);
    min-height: 58px;
    align-content: center;
    align-items: center;
    border-right: 0;
    border-bottom: 1px solid #b6cdc6;
  }

  .harness-stage:last-child {
    border-bottom: 0;
  }

  .harness-stage-list::before {
    top: 5%;
    right: auto;
    bottom: 5%;
    left: 26px;
    width: 1px;
    height: auto;
  }

  .poster-harness-core > p {
    line-height: 1.5;
  }

  .meta-loop-return {
    right: 20px;
    bottom: 24px;
    left: 20px;
    flex-wrap: wrap;
  }

  .harness-detail {
    gap: 40px;
    padding-top: 38px;
  }

  .harness-detail h3 {
    font-size: 2rem;
  }

  .poster-index__steps {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .poster-index__button:nth-child(-n + 6) {
    border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  }

  .results {
    gap: 48px;
  }

  .results-heading h3 {
    font-size: 2.45rem;
  }

  .result-block__heading,
  .result-pair {
    grid-template-columns: 1fr;
  }

  .result-block__heading {
    gap: 20px;
  }

  .transfer-row > p span {
    max-width: 220px;
  }

  .resources {
    gap: 40px;
    padding: 84px 20px;
  }

  .resources h2 {
    font-size: 3rem;
  }

  .resource-link > span {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
  }
}