@font-face {
  font-family: "Clash Display";
  src: url("/fonts/clash-display-600.woff2") format("woff2");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "General Sans";
  src: url("/fonts/general-sans-400.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "General Sans";
  src: url("/fonts/general-sans-500.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Martian Mono";
  src: url("/fonts/martian-mono-var-latin.woff2") format("woff2");
  font-weight: 100 800;
  font-style: normal;
  font-display: swap;
}

@property --page-progress {
  syntax: "<number>";
  inherits: true;
  initial-value: 0;
}

@property --pulse {
  syntax: "<number>";
  inherits: true;
  initial-value: 0;
}

@property --angle {
  syntax: "<angle>";
  inherits: false;
  initial-value: 0deg;
}

@property --accent {
  syntax: "<color>";
  inherits: true;
  initial-value: oklch(84% 0.13 188);
}

:root {
  color-scheme: dark;
  --ink: oklch(96% 0.012 90);
  --dim: oklch(72% 0.018 270);
  --black: oklch(10% 0.015 285);
  --line: color-mix(in oklch, var(--ink) 17%, transparent);
  --hairline: color-mix(in oklch, var(--ink) 9%, transparent);
  --accent: oklch(84% 0.13 188);
  --accent-ink: #050507;
  --rail-h: 5rem;
  --gutter: clamp(1.25rem, 4vw, 4.5rem);
  --page-progress: 0;
  --pointer-x: 50%;
  --pointer-y: 50%;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  scrollbar-gutter: stable;
}

@supports (color: contrast-color(red)) {
  :root {
    --accent-ink: contrast-color(var(--accent));
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-block-start: 10vh;
  background: var(--black);
}

body {
  min-width: 19rem;
  margin: 0;
  overflow-x: clip;
  background: var(--black);
  color: var(--ink);
  font-family: "General Sans", system-ui, sans-serif;
  font-size: 1rem;
  line-height: 1.5;
  transition:
    --page-progress 80ms linear,
    --accent 550ms ease;
}

button,
a {
  color: inherit;
}

button {
  font: inherit;
}

a {
  text-decoration: none;
}

::selection {
  background: var(--accent);
  color: var(--accent-ink, #050507);
}

:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: 0.35rem;
}

.skip-link {
  position: fixed;
  z-index: 100;
  inset: 1rem auto auto 1rem;
  padding: 0.65rem 0.9rem;
  translate: 0 -200%;
  background: var(--ink);
  color: var(--black);
  font-family: "Martian Mono", monospace;
  font-size: 0.65rem;
  text-transform: uppercase;
  transition: translate 180ms ease;
}

.skip-link:focus {
  translate: 0;
}

.boot {
  position: fixed;
  z-index: 90;
  inset: 0;
  display: grid;
  grid-template-rows: 1fr auto auto 1fr;
  place-items: center;
  background: #070709;
  transition:
    opacity 700ms cubic-bezier(0.65, 0, 0.35, 1),
    visibility 700ms,
    display 700ms allow-discrete;
}

body.is-ready .boot {
  display: none;
  visibility: hidden;
  opacity: 0;
}

@starting-style {
  body.is-ready .boot {
    opacity: 1;
  }
}

.boot__mark {
  grid-row: 2;
  font-family: "Clash Display", sans-serif;
  font-size: clamp(4rem, 10vw, 8rem);
  letter-spacing: -0.08em;
  line-height: 0.8;
}

.boot__mark span {
  margin-inline-start: 0.25em;
  color: var(--dim);
  font-family: "Martian Mono", monospace;
  font-size: 0.08em;
  letter-spacing: 0;
  vertical-align: top;
}

.boot__track {
  grid-row: 3;
  width: min(14rem, 50vw);
  height: 1px;
  margin-block-start: 2rem;
  overflow: hidden;
  background: #26262b;
}

.boot__track i {
  display: block;
  width: 100%;
  height: 100%;
  transform-origin: left;
  background: var(--ink);
  animation: boot-load 1.15s cubic-bezier(0.76, 0, 0.24, 1) both;
}

.boot p {
  grid-row: 4;
  align-self: start;
  margin-block: 0.8rem 0;
  color: #73737c;
  font-family: "Martian Mono", monospace;
  font-size: 0.55rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

@keyframes boot-load {
  from {
    scale: 0 1;
  }
}

#material,
.fallback-field {
  position: fixed;
  z-index: 0;
  inset: 0;
  width: 100%;
  height: 100%;
}

#material {
  opacity: 0;
  transition: opacity 1.2s 150ms ease;
}

body.is-ready #material {
  opacity: 1;
}

.fallback-field {
  background:
    radial-gradient(
      circle at var(--pointer-x) var(--pointer-y),
      color-mix(in oklch, var(--accent) 25%, transparent),
      transparent 24rem
    ),
    conic-gradient(
      from var(--angle) at 50% 48%,
      #08080c,
      #102020,
      #09090d,
      #20121c,
      #08080c
    );
  animation: fallback-turn 24s linear infinite;
}

body.has-webgl .fallback-field {
  display: none;
}

@keyframes fallback-turn {
  to {
    --angle: 1turn;
  }
}

.grain {
  position: fixed;
  z-index: 1;
  inset: -50%;
  pointer-events: none;
  opacity: 0.06;
  background:
    repeating-conic-gradient(
      from 17deg at 47% 53%,
      #fff 0 0.7deg,
      transparent 0.7deg 3.4deg
    ),
    repeating-linear-gradient(121deg, #fff0 0 3px, #fff 4px, #fff0 5px 11px);
  background-size:
    7px 9px,
    13px 17px;
  mix-blend-mode: soft-light;
  animation: grain-shift 700ms steps(2) infinite;
}

@keyframes grain-shift {
  0% {
    translate: -2% 1%;
  }
  25% {
    translate: 3% -2%;
  }
  50% {
    translate: 1% 3%;
  }
  75% {
    translate: -3% -1%;
  }
  100% {
    translate: 2% 2%;
  }
}

.reticle {
  position: fixed;
  z-index: 3;
  top: var(--pointer-y);
  left: var(--pointer-x);
  width: 3rem;
  height: 3rem;
  pointer-events: none;
  translate: -50% -50%;
  opacity: 0;
  transition: opacity 500ms ease;
  mix-blend-mode: difference;
}

@media (hover: hover) and (pointer: fine) {
  body.has-moved .reticle {
    opacity: 0.55;
  }
}

.reticle i {
  position: absolute;
  inset: 50% auto auto 50%;
  background: white;
}

.reticle i:first-child {
  width: 100%;
  height: 1px;
  translate: -50% -50%;
}

.reticle i:last-child {
  width: 1px;
  height: 100%;
  translate: -50% -50%;
}

.boot,
.rail,
.stage-nav,
.reticle,
.hero__eyebrow,
.hero__title,
.hero__edition,
.scroll-cue,
.interlude,
.chapter__index,
.chapter__ghost,
.chapter__instruction,
.cascade,
.layout-solver,
.spectrum,
.layer-stack,
.manifesto__kicker,
.manifesto h2 {
  -webkit-user-select: none;
  user-select: none;
}

.rail {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  width: 100%;
  min-height: var(--rail-h);
  padding-inline: var(--gutter);
  border-bottom: 1px solid var(--hairline);
  background: linear-gradient(
    to bottom,
    color-mix(in srgb, var(--black) 88%, transparent),
    transparent
  );
  backdrop-filter: blur(10px);
  container-type: inline-size;
}

.rail__identity {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  width: max-content;
  text-transform: uppercase;
}

.rail__identity > span:first-child {
  font-family: "Clash Display", sans-serif;
  font-size: 1.4rem;
  letter-spacing: -0.08em;
}

.rail__identity > span:last-child {
  padding-inline-start: 0.8rem;
  border-left: 1px solid var(--line);
  color: var(--dim);
  font-family: "Martian Mono", monospace;
  font-size: 0.47rem;
  line-height: 1.35;
  letter-spacing: 0.08em;
}

.rail__readout {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.2rem;
  color: var(--dim);
  font-family: "Martian Mono", monospace;
  font-size: 0.5rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.rail__readout span {
  white-space: nowrap;
}

.rail__readout span + span::before {
  content: "/";
  margin-inline-end: 1.2rem;
  opacity: 0.35;
}

.status-dot {
  display: inline-block;
  width: 0.35rem;
  aspect-ratio: 1;
  margin-inline-end: 0.5rem;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0.75rem var(--accent);
  animation: status-pulse 2s ease-in-out infinite;
}

@keyframes status-pulse {
  50% {
    opacity: 0.35;
  }
}

.rail__about {
  anchor-name: --field-button;
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-height: var(--rail-h);
  border: 0;
  padding: 0;
  background: none;
  color: var(--ink);
  cursor: pointer;
  font-family: "Martian Mono", monospace;
  font-size: 0.55rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.rail__about svg {
  width: 1rem;
  height: 1rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1;
  transition: rotate 400ms cubic-bezier(0.16, 1, 0.3, 1);
}

body:has(.field-notes:popover-open) .rail__about svg,
body:has(.field-notes:open) .rail__about svg {
  rotate: 45deg;
}

.progress {
  position: fixed;
  z-index: 21;
  top: calc(var(--rail-h) - 1px);
  left: 0;
  width: 100%;
  height: 1px;
  background: transparent;
}

.progress i {
  display: block;
  width: 100%;
  height: 100%;
  transform: scaleX(var(--page-progress));
  transform-origin: left;
  background: var(--accent);
  box-shadow: 0 0 1rem var(--accent);
}

.sr-progress {
  position: fixed;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
}

.stage-nav {
  position: fixed;
  z-index: 15;
  top: 50%;
  right: var(--gutter);
  display: flex;
  flex-direction: column;
  align-items: end;
  gap: 1.1rem;
  translate: 0 -50%;
  font-family: "Martian Mono", monospace;
  text-transform: uppercase;
}

.stage-nav__title {
  padding-block-end: 0.65rem;
  color: var(--dim);
  font-size: 0.48rem;
  letter-spacing: 0.14em;
}

.stage-nav__links {
  display: flex;
  flex-direction: column;
  align-items: end;
  gap: 0.7rem;
  scroll-target-group: auto;
}

.stage-nav a {
  display: flex;
  flex-direction: row-reverse;
  align-items: center;
  gap: 0.65rem;
  color: color-mix(in oklch, var(--ink) 36%, transparent);
  font-size: 0.46rem;
  letter-spacing: 0.08em;
  transition: color 250ms ease;
}

.stage-nav a::before {
  content: attr(data-index);
  width: 1rem;
  font-variant-numeric: tabular-nums;
}

.stage-nav a::after {
  content: "";
  width: 0.8rem;
  height: 1px;
  background: currentColor;
  transition:
    width 350ms cubic-bezier(0.16, 1, 0.3, 1),
    box-shadow 350ms;
}

.stage-nav a span {
  width: 0;
  overflow: hidden;
  opacity: 0;
  transition:
    width 350ms cubic-bezier(0.16, 1, 0.3, 1),
    opacity 200ms;
}

.stage-nav a:hover,
.stage-nav a.is-active,
.stage-nav a:target-current {
  color: var(--accent);
}

.stage-nav a:hover::after,
.stage-nav a.is-active::after,
.stage-nav a:target-current::after {
  width: 2.5rem;
  box-shadow: 0 0 0.7rem currentColor;
}

.stage-nav a:hover span,
.stage-nav a:focus-visible span {
  width: 4.5rem;
  opacity: 1;
}

.field-notes {
  position: fixed;
  position-anchor: --field-button;
  z-index: 50;
  inset: var(--rail-h) 0 auto auto;
  width: min(36rem, 100vw);
  max-height: calc(100dvh - var(--rail-h));
  margin: 0;
  padding: 0;
  overflow: auto;
  border: 0;
  border-left: 1px solid var(--line);
  background: color-mix(in oklch, var(--black) 94%, var(--accent) 6%);
  color: var(--ink);
  opacity: 0;
  translate: 2rem 0;
  transition:
    opacity 450ms cubic-bezier(0.16, 1, 0.3, 1),
    translate 450ms cubic-bezier(0.16, 1, 0.3, 1),
    overlay 450ms allow-discrete,
    display 450ms allow-discrete;
  corner-shape: squircle;
}

@supports (top: anchor(bottom)) {
  .field-notes {
    inset: auto;
    top: anchor(bottom);
    right: anchor(right);
  }
}

.field-notes:popover-open,
.field-notes:open {
  opacity: 1;
  translate: 0;
}

@starting-style {
  .field-notes:popover-open,
  .field-notes:open {
    opacity: 0;
    translate: 2rem 0;
  }
}

.field-notes::backdrop {
  background: rgb(0 0 0 / 0.46);
  opacity: 0;
  backdrop-filter: blur(0);
  transition:
    opacity 450ms,
    backdrop-filter 450ms,
    overlay 450ms allow-discrete,
    display 450ms allow-discrete;
}

.field-notes:popover-open::backdrop,
.field-notes:open::backdrop {
  opacity: 1;
  backdrop-filter: blur(5px);
}

.field-notes__head {
  position: sticky;
  z-index: 2;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 4rem;
  padding-inline: clamp(1.25rem, 5vw, 3rem);
  border-bottom: 1px solid var(--line);
  background: inherit;
  font-family: "Martian Mono", monospace;
  font-size: 0.54rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.field-notes__head p {
  margin: 0;
  color: var(--dim);
}

.field-notes__head button {
  border: 0;
  background: none;
  color: var(--ink);
  cursor: pointer;
  font: inherit;
  text-transform: inherit;
}

.field-notes__head button span {
  margin-inline-start: 0.6rem;
  font-size: 1rem;
  font-weight: 300;
}

.field-notes__intro {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 2rem;
  padding: clamp(2rem, 6vw, 4rem) clamp(1.25rem, 5vw, 3rem);
  border-bottom: 1px solid var(--line);
}

.field-notes__intro > span {
  font-family: "Clash Display", sans-serif;
  font-size: clamp(1.5rem, 3vw, 2.3rem);
  letter-spacing: -0.04em;
  line-height: 0.95;
}

.field-notes__intro p {
  margin: 0;
  color: var(--dim);
  font-size: 0.8rem;
  line-height: 1.65;
}

.feature-ledger {
  margin: 0;
  padding: 0;
  list-style: none;
}

@scope (.feature-ledger) {
  li {
    --ledger-index: 1;
    display: grid;
    grid-template-columns: 2rem 1fr 1.25fr;
    gap: 1rem;
    align-items: baseline;
    padding: 1rem clamp(1.25rem, 5vw, 3rem);
    border-bottom: 1px solid var(--hairline);
    opacity: 1;
    translate: 0;
    transition:
      opacity 380ms cubic-bezier(0.16, 1, 0.3, 1),
      translate 380ms cubic-bezier(0.16, 1, 0.3, 1);
    transition-delay: calc(var(--ledger-index) * 28ms + 60ms);
  }

  b,
  em {
    color: var(--dim);
    font-family: "Martian Mono", monospace;
    font-size: 0.48rem;
    font-style: normal;
    font-weight: 400;
    letter-spacing: 0.04em;
  }

  span {
    font-size: 0.8rem;
  }

  li:nth-child(2) {
    --ledger-index: 2;
  }
  li:nth-child(3) {
    --ledger-index: 3;
  }
  li:nth-child(4) {
    --ledger-index: 4;
  }
  li:nth-child(5) {
    --ledger-index: 5;
  }
  li:nth-child(6) {
    --ledger-index: 6;
  }
  li:nth-child(7) {
    --ledger-index: 7;
  }
  li:nth-child(8) {
    --ledger-index: 8;
  }

  @supports (z-index: calc(sibling-index())) {
    li {
      --ledger-index: sibling-index();
    }
  }
}

@starting-style {
  .field-notes:popover-open .feature-ledger li,
  .field-notes:open .feature-ledger li {
    opacity: 0;
    translate: 0 0.7rem;
  }
}

.field-notes__foot {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  padding: 2rem clamp(1.25rem, 5vw, 3rem) 3rem;
  color: var(--dim);
  font-family: "Martian Mono", monospace;
  font-size: 0.48rem;
  line-height: 1.5;
  text-transform: uppercase;
}

.field-notes__foot a {
  transition: color 180ms ease;
}

.field-notes__foot a:hover {
  color: var(--ink);
}

main,
.footer {
  position: relative;
  z-index: 4;
}

.hero {
  position: relative;
  display: grid;
  grid-template-rows: auto 1fr auto;
  min-height: 150svh;
  padding: calc(var(--rail-h) + 2rem) var(--gutter) 8vh;
}

.hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  background:
    linear-gradient(
      90deg,
      color-mix(in srgb, var(--black) 72%, transparent),
      transparent 45%,
      color-mix(in srgb, var(--black) 46%, transparent)
    ),
    linear-gradient(0deg, var(--black), transparent 25%);
}

.hero__eyebrow {
  display: flex;
  justify-content: space-between;
  padding-block-start: 1rem;
  color: var(--dim);
  font-family: "Martian Mono", monospace;
  font-size: 0.52rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero__title {
  align-self: center;
  width: 100%;
  margin: 0;
  padding-block: 10vh 8vh;
  font-family: "Clash Display", sans-serif;
  font-size: clamp(4.1rem, 12.1vw, 13.5rem);
  font-weight: 600;
  line-height: 0.76;
  letter-spacing: -0.072em;
  text-wrap: balance;
}

.hero__title span {
  display: block;
  transform-origin: left center;
}

.hero__title span:last-child {
  margin-inline-start: clamp(0rem, 8vw, 9rem);
  color: transparent;
  -webkit-text-stroke: max(1px, 0.012em)
    color-mix(in oklch, var(--ink) 62%, transparent);
}

.hero__title i,
.chapter h2 i {
  color: var(--accent);
  font-style: normal;
  text-shadow: 0 0 1.2em color-mix(in oklch, var(--accent) 35%, transparent);
  -webkit-text-stroke-color: var(--accent);
}

.hero__thesis {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 3rem;
  max-width: calc(100% - 12rem);
  padding-inline-start: clamp(0rem, 16vw, 19rem);
}

.hero__thesis > p {
  max-width: 43rem;
  margin: 0;
  font-size: clamp(1rem, 1.55vw, 1.4rem);
  line-height: 1.5;
  text-wrap: pretty;
}

.scroll-cue {
  display: flex;
  flex-direction: column;
  flex: 0 0 auto;
  gap: 0.7rem;
  color: var(--dim);
  font-family: "Martian Mono", monospace;
  font-size: 0.48rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.scroll-cue i {
  position: relative;
  width: 8rem;
  height: 1px;
  overflow: hidden;
  background: var(--line);
}

.scroll-cue i::after {
  content: "";
  position: absolute;
  width: 45%;
  height: 100%;
  background: var(--ink);
  animation: scroll-cue 2s ease-in-out infinite;
}

@keyframes scroll-cue {
  from {
    translate: -110% 0;
  }
  to {
    translate: 240% 0;
  }
}

.hero__edition {
  position: absolute;
  right: var(--gutter);
  bottom: 2rem;
  margin: 0;
  color: var(--dim);
  font-family: "Martian Mono", monospace;
  font-size: 0.48rem;
  line-height: 1.55;
  letter-spacing: 0.06em;
  text-align: right;
  text-transform: uppercase;
}

.interlude {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1rem;
  height: 12rem;
  padding-inline: var(--gutter);
  color: var(--dim);
  font-family: "Martian Mono", monospace;
  font-size: 0.48rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.interlude i {
  height: 1px;
  background: linear-gradient(90deg, var(--line), var(--accent), var(--line));
}

.chapter {
  --chapter-scrim: color-mix(in srgb, var(--black) 80%, transparent);
  position: relative;
  display: grid;
  align-items: center;
  min-height: 135svh;
  padding: 18vh var(--gutter);
  scroll-margin-block-start: 0;
  container-type: inline-size;
}

.chapter::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  pointer-events: none;
  opacity: 0.75;
}

.chapter--left::before {
  background: linear-gradient(90deg, var(--chapter-scrim), transparent 65%);
}

.chapter--right::before {
  background: linear-gradient(-90deg, var(--chapter-scrim), transparent 65%);
}

.chapter__body {
  position: relative;
  width: min(39rem, 52vw);
  padding: clamp(1.5rem, 3vw, 2.75rem);
  border: 1px solid var(--line);
  border-radius: 1.6rem;
  background: color-mix(in oklch, var(--black) 72%, transparent);
  box-shadow:
    0 2rem 7rem rgb(0 0 0 / 0.2),
    inset 0 1px rgb(255 255 255 / 0.04);
  backdrop-filter: blur(24px) saturate(125%);
  container-type: inline-size;
  corner-shape: squircle;
}

.chapter--right .chapter__body {
  justify-self: end;
  margin-inline-end: clamp(4rem, 9vw, 11rem);
}

.chapter__index {
  margin: 0 0 clamp(3rem, 7vh, 6rem);
  color: var(--accent);
  font-family: "Martian Mono", monospace;
  font-size: 0.58rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.chapter h2 {
  margin: 0;
  font-family: "Clash Display", sans-serif;
  font-size: clamp(2.5rem, 4.8vw, 5.7rem);
  font-weight: 600;
  line-height: 0.91;
  letter-spacing: -0.055em;
  text-box: trim-both cap alphabetic;
}

.chapter__lede {
  max-width: 37rem;
  margin: clamp(2rem, 5vh, 3.5rem) 0 0;
  color: color-mix(in oklch, var(--ink) 78%, var(--dim));
  font-size: clamp(0.95rem, 1.25vw, 1.14rem);
  line-height: 1.65;
  text-wrap: pretty;
}

.chapter__handoff {
  max-width: 32rem;
  margin: 1.45rem 0 0;
  padding-inline-start: 0.9rem;
  border-inline-start: 1px solid var(--accent);
  color: color-mix(in oklch, var(--accent) 62%, var(--dim));
  font-family: "Martian Mono", monospace;
  font-size: 0.5rem;
  line-height: 1.65;
  letter-spacing: 0.045em;
  text-transform: uppercase;
}

.chapter__facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin: clamp(2.25rem, 6vh, 4rem) 0 0;
  padding: 1rem 0 0;
  border-top: 1px solid var(--line);
  column-rule: 1px solid var(--hairline);
}

.chapter__facts div {
  min-width: 0;
  padding-inline-end: 1rem;
}

.chapter__facts div + div {
  padding-inline-start: 1rem;
  border-left: 1px solid var(--hairline);
}

.chapter__facts dt,
.chapter__facts dd {
  margin: 0;
}

.chapter__facts dt {
  margin-block-end: 0.35rem;
  color: var(--dim);
  font-family: "Martian Mono", monospace;
  font-size: 0.48rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.chapter__facts dd {
  overflow: hidden;
  font-size: 0.67rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chapter__instruction {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin: 1.5rem 0 0;
  color: var(--dim);
  font-family: "Martian Mono", monospace;
  font-size: 0.48rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.chapter__instruction i {
  width: 0.35rem;
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0.8rem var(--accent);
}

.chapter__ghost {
  position: absolute;
  z-index: -1;
  top: 50%;
  margin: 0;
  color: transparent;
  font-family: "Clash Display", sans-serif;
  font-size: clamp(9rem, 24vw, 28rem);
  line-height: 0.7;
  letter-spacing: -0.07em;
  opacity: 0.12;
  translate: 0 -50%;
  -webkit-text-stroke: 1px var(--ink);
  writing-mode: vertical-rl;
  text-orientation: mixed;
}

.chapter--left .chapter__ghost {
  right: 4vw;
}

.chapter--right .chapter__ghost {
  left: 4vw;
  rotate: 180deg;
}

.cascade {
  display: flex;
  align-items: end;
  gap: 0.35rem;
  height: 4.5rem;
  margin-block-start: 2rem;
}

.cascade span {
  display: grid;
  place-items: end start;
  width: calc(var(--weight) * 1rem + 2.8rem);
  height: calc(var(--weight) * 0.6rem + 1.1rem);
  padding: 0.4rem;
  border: 1px solid
    color-mix(in oklch, var(--accent) calc(var(--weight) * 18%), var(--line));
  background: color-mix(
    in oklch,
    var(--accent) calc(var(--weight) * 4%),
    transparent
  );
  font-family: "Martian Mono", monospace;
  font-size: 0.42rem;
  white-space: nowrap;
}

.layout-solver {
  display: grid;
  grid-template-columns: 1.4fr 0.7fr 1fr;
  grid-template-rows: repeat(2, 1fr);
  gap: 0.3rem;
  height: 5rem;
  margin-block-start: 2rem;
  padding: 0.4rem;
  border: 1px solid var(--line);
}

.layout-solver span {
  display: grid;
  place-content: center;
  gap: 0.1rem;
  padding: 0.2rem;
  border: 1px solid color-mix(in oklch, var(--accent) 55%, transparent);
  background: color-mix(in oklch, var(--accent) 5%, transparent);
  color: color-mix(in oklch, var(--ink) 78%, var(--accent));
  font-family: "Martian Mono", monospace;
  line-height: 1;
  text-align: center;
}

.layout-solver span:first-child {
  grid-row: 1 / -1;
}

.layout-solver b,
.layout-solver small {
  font-weight: 400;
}

.layout-solver b {
  font-size: 0.48rem;
}

.layout-solver small {
  color: var(--dim);
  font-size: 0.36rem;
  text-transform: uppercase;
}

.spectrum {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 1rem;
  margin-block-start: 2rem;
  color: var(--dim);
  font-family: "Martian Mono", monospace;
  font-size: 0.46rem;
  font-style: normal;
}

.spectrum span {
  height: 0.55rem;
  background: linear-gradient(
    90deg in oklch,
    oklch(70% 0.26 20),
    oklch(82% 0.2 95),
    oklch(78% 0.19 160),
    oklch(72% 0.2 245),
    oklch(68% 0.25 320),
    oklch(70% 0.26 380)
  );
  box-shadow: 0 0 1.5rem color-mix(in oklch, var(--accent) 40%, transparent);
  clip-path: polygon(0 35%, 100% 0, 100% 100%, 0 65%);
}

@supports (clip-path: shape(from 0 50%, line to 100% 0)) {
  .spectrum span {
    clip-path: shape(
      from 0 50%,
      curve to 22% 10% with 10% 40%,
      curve to 55% 70% with 38% 30%,
      curve to 100% 50% with 78% 100%,
      line to 100% 100%,
      line to 0 100%,
      close
    );
  }
}

.spectrum b,
.spectrum em {
  font-style: normal;
  font-weight: 400;
}

.layer-stack {
  position: relative;
  width: 8rem;
  height: 5rem;
  margin: 2rem auto 0;
  perspective: 14rem;
  transform-style: preserve-3d;
}

.layer-stack i {
  --layer: 1;
  position: absolute;
  inset: 0;
  border: 1px solid color-mix(in oklch, var(--accent) 60%, transparent);
  background: color-mix(in oklch, var(--accent) 8%, transparent);
  transform: rotateX(62deg) rotateZ(-18deg)
    translateZ(calc(var(--layer) * 0.8rem));
  box-shadow: 0 0 1rem color-mix(in oklch, var(--accent) 8%, transparent);
}

.layer-stack i:nth-child(2) {
  --layer: 2;
}

.layer-stack i:nth-child(3) {
  --layer: 3;
}

.layer-stack i:nth-child(4) {
  --layer: 4;
}

@supports (z-index: calc(sibling-index())) {
  .layer-stack i {
    --layer: sibling-index();
  }
}

.pulse-button {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  margin-block-start: 2rem;
  padding: 0.95rem 1rem;
  overflow: hidden;
  border: 1px solid var(--accent);
  border-radius: 0.8rem;
  background: transparent;
  color: var(--accent);
  cursor: pointer;
  font-family: "Martian Mono", monospace;
  font-size: 0.52rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition:
    color 250ms,
    background-color 250ms,
    scale 180ms;
  corner-shape: squircle;
}

.pulse-button:hover {
  background: var(--accent);
  color: var(--accent-ink, var(--black));
}

.pulse-button:active {
  scale: 0.985;
}

.pulse-button i {
  width: 0.55rem;
  aspect-ratio: 1;
  border: 1px solid currentColor;
  border-radius: 50%;
  box-shadow: 0 0 0 calc(var(--pulse) * 1.2rem)
    color-mix(in oklch, var(--accent) 0%, transparent);
}

.manifesto {
  position: relative;
  min-height: 130svh;
  padding: clamp(10rem, 20vh, 16rem) var(--gutter) 7rem;
  background: linear-gradient(
    180deg,
    transparent,
    color-mix(in srgb, var(--black) 86%, transparent) 24%,
    var(--black) 70%
  );
}

.manifesto__kicker {
  margin: 0 0 7vh;
  color: var(--accent);
  font-family: "Martian Mono", monospace;
  font-size: 0.55rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.manifesto h2 {
  margin: 0;
  font-family: "Clash Display", sans-serif;
  font-size: clamp(3.6rem, 10.7vw, 12rem);
  line-height: 0.79;
  letter-spacing: -0.068em;
  text-transform: uppercase;
}

.manifesto h2 span {
  display: block;
}

.manifesto h2 span:nth-child(2) {
  margin-inline-start: 8vw;
  color: transparent;
  -webkit-text-stroke: 1px color-mix(in oklch, var(--ink) 55%, transparent);
}

.manifesto h2 span:nth-child(3) {
  color: var(--accent);
  text-align: right;
}

.manifesto__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(3rem, 12vw, 12rem);
  align-items: end;
  margin-block: clamp(5rem, 14vh, 11rem);
  padding-inline: clamp(0rem, 8vw, 9rem);
}

.manifesto__grid p {
  max-width: 34rem;
  margin: 0;
  color: color-mix(in oklch, var(--ink) 72%, var(--dim));
  font-size: clamp(1rem, 1.3vw, 1.2rem);
  line-height: 1.7;
  text-wrap: pretty;
}

.manifesto__grid blockquote {
  margin: 0;
  font-family: "Clash Display", sans-serif;
  font-size: clamp(1.65rem, 3.4vw, 3.6rem);
  line-height: 0.98;
  letter-spacing: -0.04em;
}

.manifesto__credits {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  padding-block: 1.4rem;
  border-block: 1px solid var(--line);
  color: var(--dim);
  font-family: "Martian Mono", monospace;
  font-size: 0.5rem;
  line-height: 1.75;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  column-rule: 1px solid var(--hairline);
}

.manifesto__credits span:nth-child(2) {
  text-align: center;
}

.manifesto__credits span:last-child {
  text-align: right;
}

.manifesto__credits b {
  color: var(--ink);
  font-weight: 400;
}

.restart {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(20rem, 100%);
  margin: 7rem auto 0;
  padding-block: 0.85rem;
  border-bottom: 1px solid var(--ink);
  font-family: "Martian Mono", monospace;
  font-size: 0.55rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.restart i {
  font-size: 1rem;
  font-style: normal;
  transition: translate 250ms ease;
}

.restart:hover i {
  translate: 0 -0.25rem;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  padding: 2rem var(--gutter);
  border-top: 1px solid var(--line);
  background: var(--black);
  color: var(--dim);
  font-family: "Martian Mono", monospace;
  font-size: 0.45rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.footer p {
  margin: 0;
}

.noscript {
  position: fixed;
  z-index: 80;
  right: 1rem;
  bottom: 1rem;
  max-width: 24rem;
  padding: 1rem;
  border: 1px solid var(--line);
  background: var(--black);
  font-family: "Martian Mono", monospace;
  font-size: 0.55rem;
}

@supports (animation-timeline: view()) {
  .progress i {
    transform: none;
    animation: progress-grow linear both;
    animation-timeline: scroll(root block);
  }

  .hero__title span:first-child {
    animation: hero-away linear both;
    animation-timeline: scroll(root block);
    animation-range: 0 28%;
  }

  .hero__title span:last-child {
    animation: hero-away-right linear both;
    animation-timeline: scroll(root block);
    animation-range: 0 28%;
  }

  .chapter__body {
    animation: chapter-pass linear both;
    animation-timeline: view(block);
    animation-range: entry 5% exit 95%;
  }

  .chapter__ghost {
    animation: ghost-pass linear both;
    animation-timeline: view(block);
    animation-range: entry 0% exit 100%;
  }

  .manifesto h2 span {
    animation: line-arrive linear both;
    animation-timeline: view(block);
    animation-range: entry 10% cover 45%;
  }
}

@keyframes progress-grow {
  from {
    scale: 0 1;
  }
}

@keyframes hero-away {
  to {
    translate: -16vw 22vh;
    opacity: 0;
    scale: 0.78;
  }
}

@keyframes hero-away-right {
  to {
    translate: 18vw 8vh;
    opacity: 0;
    scale: 1.12;
  }
}

@keyframes chapter-pass {
  0% {
    opacity: 0;
    translate: 0 7rem;
    scale: 0.94;
  }
  22%,
  72% {
    opacity: 1;
    translate: 0;
    scale: 1;
  }
  100% {
    opacity: 0;
    translate: 0 -5rem;
    scale: 0.97;
  }
}

@keyframes ghost-pass {
  from {
    translate: 0 -32%;
  }
  to {
    translate: 0 -68%;
  }
}

@keyframes line-arrive {
  from {
    opacity: 0;
    translate: 0 0.65em;
  }
}

@container (width < 34rem) {
  .chapter__facts {
    grid-template-columns: 1fr;
  }

  .chapter__facts div {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.45rem 0;
  }

  .chapter__facts div + div {
    border-left: 0;
    border-top: 1px solid var(--hairline);
  }

  .chapter__facts dt {
    margin: 0;
  }
}

@container (width < 48rem) {
  .rail__readout span:nth-child(n + 2) {
    display: none;
  }
}

@media (max-width: 62rem) {
  :root {
    --rail-h: 4.25rem;
  }

  .stage-nav {
    display: none;
  }

  .hero__title {
    font-size: clamp(4rem, 13.5vw, 8rem);
  }

  .hero__thesis {
    max-width: 100%;
    padding-inline-start: 8vw;
  }

  .chapter__body {
    width: min(42rem, 72vw);
  }

  .chapter--right .chapter__body {
    margin-inline-end: 0;
  }
}

@media (max-width: 42rem) {
  :root {
    --gutter: 1.15rem;
  }

  .rail {
    grid-template-columns: 1fr auto;
  }

  .rail__readout {
    display: none;
  }

  .rail__about span {
    display: none;
  }

  .rail__about svg {
    width: 1.15rem;
    height: 1.15rem;
  }

  .field-notes {
    top: var(--rail-h);
    width: 100vw;
    border-left: 0;
  }

  .field-notes__intro {
    grid-template-columns: 1fr;
  }

  .feature-ledger li {
    grid-template-columns: 1.5rem 1fr;
  }

  .feature-ledger em {
    display: none;
  }

  .hero {
    min-height: 130svh;
    padding-block-end: 4rem;
  }

  .hero__eyebrow span:last-child {
    display: none;
  }

  .hero__title {
    align-self: start;
    padding-block-start: 18vh;
    font-size: clamp(3.35rem, 17.2vw, 6.2rem);
    line-height: 0.81;
  }

  .hero__title span:last-child {
    margin: 0;
  }

  .hero__thesis {
    display: block;
    padding: 0;
  }

  .hero__thesis > p {
    max-width: 29rem;
    font-size: 1rem;
  }

  .scroll-cue {
    margin-block-start: 2.5rem;
  }

  .hero__edition {
    display: none;
  }

  .interlude {
    height: 7rem;
  }

  .chapter {
    min-height: 125svh;
    padding-block: 15vh;
  }

  .chapter::before {
    background: linear-gradient(0deg, var(--chapter-scrim), transparent 75%);
  }

  .chapter__body {
    align-self: end;
    width: 100%;
    border-radius: 1.15rem;
    backdrop-filter: blur(18px) saturate(120%);
  }

  .chapter__index {
    margin-block-end: 2.75rem;
  }

  .chapter h2 {
    font-size: clamp(2.7rem, 12.5vw, 4rem);
  }

  .chapter__ghost {
    top: 20%;
    right: 0 !important;
    left: auto !important;
    font-size: 9rem;
    rotate: 0 !important;
    translate: 0 -50%;
    writing-mode: horizontal-tb;
  }

  .cascade {
    overflow: hidden;
  }

  .manifesto {
    min-height: 120svh;
    padding-block-start: 9rem;
  }

  .manifesto h2 {
    font-size: clamp(3rem, 17vw, 5.8rem);
    line-height: 0.84;
  }

  .manifesto h2 span:nth-child(2) {
    margin-inline-start: 0;
  }

  .manifesto__grid {
    grid-template-columns: 1fr;
    gap: 4rem;
    margin-block: 6rem;
    padding: 0;
  }

  .manifesto__credits {
    grid-template-columns: 1fr;
  }

  .manifesto__credits span:nth-child(2),
  .manifesto__credits span:last-child {
    text-align: left;
  }

  .footer {
    flex-direction: column;
    gap: 0.5rem;
  }
}

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

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

  .chapter__body,
  .chapter__ghost,
  .hero__title span,
  .manifesto h2 span {
    animation: none !important;
  }

  .reticle {
    display: none;
  }
}

@media (prefers-contrast: more) {
  :root {
    --line: color-mix(in oklch, var(--ink) 42%, transparent);
    --dim: oklch(84% 0.01 270);
  }

  .chapter__body {
    background: color-mix(in oklch, var(--black) 92%, transparent);
  }
}

@media (forced-colors: active) {
  #material,
  .fallback-field,
  .grain,
  .reticle {
    display: none;
  }

  .chapter__body,
  .field-notes {
    background: Canvas;
  }
}