:root {
  --ink: #060a0c;
  --blue-black: #0a1216;
  --concrete: #a9aaa1;
  --paper: #d8d7cc;
  --white: #ecebe2;
  --signal: #d6ff38;
  --line: rgba(229, 231, 220, 0.22);
  --pad: clamp(1.25rem, 4vw, 4.5rem);
  --header-h: 5.75rem;
  color-scheme: dark;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--ink);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--ink);
  color: var(--white);
  font-family: "Arial Narrow", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}

body.is-locked {
  overflow: hidden;
}

button,
a {
  color: inherit;
}

button {
  font: inherit;
}

a {
  text-decoration: none;
}

img {
  display: block;
  width: 100%;
}

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

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.7rem 1rem;
  transform: translateY(-160%);
  background: var(--signal);
  color: var(--ink);
  font-weight: 700;
}

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

.noise {
  position: fixed;
  z-index: 80;
  inset: 0;
  pointer-events: none;
  opacity: 0.055;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.68'/%3E%3C/svg%3E");
  mix-blend-mode: soft-light;
}

.scroll-progress {
  position: fixed;
  z-index: 100;
  inset: 0 0 auto;
  height: 2px;
  background: rgba(255, 255, 255, 0.08);
}

.scroll-progress span {
  display: block;
  width: 100%;
  height: 100%;
  transform: scaleX(0);
  transform-origin: left center;
  background: var(--signal);
}

.boot {
  position: fixed;
  z-index: 999;
  inset: 0;
  display: grid;
  place-content: center;
  gap: 1.1rem;
  background: #080c0e;
  transition: opacity 0.7s cubic-bezier(0.77, 0, 0.18, 1), visibility 0.7s;
}

.boot.is-gone {
  visibility: hidden;
  opacity: 0;
}

.boot__mark {
  font-size: clamp(2rem, 5vw, 5rem);
  font-weight: 800;
  letter-spacing: -0.08em;
}

.boot__line {
  width: min(18rem, 70vw);
  height: 1px;
  background: #2a3234;
}

.boot__line span {
  display: block;
  width: 0;
  height: 100%;
  background: var(--signal);
  animation: boot-line 1.2s 0.1s cubic-bezier(0.65, 0, 0.35, 1) forwards;
}

.boot__meta,
.eyebrow {
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.boot__meta {
  color: #7c8586;
}

@keyframes boot-line {
  to { width: 100%; }
}

.site-header {
  position: fixed;
  z-index: 90;
  top: 0;
  left: 0;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  width: 100%;
  height: var(--header-h);
  padding: 0 var(--pad);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  background: linear-gradient(to bottom, rgba(4, 8, 10, 0.62), transparent);
  transition: height 0.35s, background 0.35s, backdrop-filter 0.35s;
}

.site-header.is-compact {
  height: 4.4rem;
  background: rgba(5, 9, 11, 0.76);
  backdrop-filter: blur(14px);
}

.brand {
  justify-self: start;
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.brand svg {
  width: 1.8rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(1.6rem, 4vw, 4.5rem);
}

.site-nav a {
  position: relative;
  padding: 0.6rem 0;
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  transition: color 0.25s;
}

.site-nav a::after {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  transform: scaleX(0);
  transform-origin: right;
  background: var(--signal);
  content: "";
  transition: transform 0.3s;
}

.site-nav a:hover,
.site-nav a.is-active {
  color: var(--white);
}

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

.site-nav span {
  color: var(--signal);
  font-size: 0.54rem;
}

.sound-toggle {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.65rem 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.sound-toggle__bars {
  display: flex;
  align-items: center;
  gap: 2px;
  height: 0.8rem;
}

.sound-toggle__bars i {
  display: block;
  width: 2px;
  height: 30%;
  background: var(--signal);
}

.sound-toggle[aria-pressed="true"] i:nth-child(1) { animation: sound 0.7s -0.2s infinite alternate; }
.sound-toggle[aria-pressed="true"] i:nth-child(2) { animation: sound 0.5s infinite alternate; }
.sound-toggle[aria-pressed="true"] i:nth-child(3) { animation: sound 0.9s -0.4s infinite alternate; }

.sound-toggle__label {
  font-size: 0.58rem;
  letter-spacing: 0.15em;
}

@keyframes sound {
  to { height: 100%; }
}

.hero {
  position: relative;
  min-height: 100svh;
  overflow: hidden;
  isolation: isolate;
  background: #0b1317;
}

.hero__media,
.hero__shade {
  position: absolute;
  inset: 0;
}

.hero__media {
  z-index: -3;
  transform: scale(1.035);
  will-change: transform;
}

.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 66%;
  filter: saturate(0.65) contrast(1.08) brightness(0.78);
}

#atmosphere {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.48;
  mix-blend-mode: screen;
}

.hero__shade {
  z-index: -2;
  background:
    linear-gradient(90deg, rgba(3, 7, 9, 0.82) 0%, rgba(3, 7, 9, 0.2) 43%, rgba(3, 7, 9, 0.05) 66%, rgba(3, 7, 9, 0.3) 100%),
    linear-gradient(0deg, rgba(3, 6, 8, 0.74) 0%, transparent 35%, rgba(3, 6, 8, 0.24) 100%);
}

.hero__content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  width: min(56rem, 82vw);
  min-height: 100svh;
  padding: calc(var(--header-h) + 3rem) var(--pad) 7rem;
}

.eyebrow {
  margin: 0 0 1.4rem;
  color: var(--signal);
}

.hero h1 {
  margin: 0;
  max-width: 8.6em;
  font-size: clamp(3.6rem, 8vw, 9.5rem);
  font-weight: 800;
  letter-spacing: -0.085em;
  line-height: 0.82;
}

.hero__line {
  display: block;
  opacity: 0;
  transform: translateY(1em);
  animation: hero-line 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.hero__line:nth-child(1) { animation-delay: 1.1s; }
.hero__line:nth-child(2) { animation-delay: 1.22s; }
.hero__line:nth-child(3) { animation-delay: 1.34s; }

.hero__line--ghost {
  color: transparent;
  -webkit-text-stroke: 1px rgba(236, 235, 226, 0.56);
}

.hero__line--indent {
  padding-left: 1.18em;
}

@keyframes hero-line {
  to { opacity: 1; transform: translateY(0); }
}

.hero__intro {
  align-self: flex-end;
  margin: 2.6rem 0 0;
  max-width: 23rem;
  color: rgba(236, 235, 226, 0.72);
  font-size: clamp(0.8rem, 1.15vw, 1rem);
  letter-spacing: 0.08em;
  line-height: 1.9;
}

.edge-data {
  position: absolute;
  z-index: 2;
  top: 50%;
  display: flex;
  gap: 2rem;
  color: rgba(255, 255, 255, 0.38);
  font-size: 0.52rem;
  letter-spacing: 0.16em;
  writing-mode: vertical-rl;
}

.edge-data--left { left: 1rem; transform: rotate(180deg) translateY(50%); }
.edge-data--right { right: 1rem; transform: translateY(-50%); }

.descend {
  position: absolute;
  z-index: 3;
  bottom: 2.5rem;
  left: var(--pad);
  display: flex;
  align-items: center;
  gap: 1.3rem;
  font-size: 0.62rem;
  letter-spacing: 0.22em;
}

.descend svg {
  width: 1.35rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1;
  animation: descend 1.6s infinite ease-in-out;
}

@keyframes descend {
  50% { transform: translateY(0.45rem); }
}

.hero__index {
  position: absolute;
  right: var(--pad);
  bottom: 2.8rem;
  font-size: 0.65rem;
  letter-spacing: 0.2em;
}

.hero__index span { color: var(--signal); }

.passage {
  position: relative;
  background: #091014;
}

.passage__sticky {
  position: sticky;
  z-index: 0;
  top: 0;
  height: 100svh;
  overflow: hidden;
}

.passage__media,
.passage__veil {
  position: absolute;
  inset: 0;
}

.passage__media {
  transform: scale(var(--passage-scale, 1.08)) translate3d(0, var(--passage-y, 0), 0);
  will-change: transform;
}

.passage__media img {
  height: 100%;
  object-fit: cover;
  object-position: 50% 78%;
  filter: saturate(0.48) contrast(1.14) brightness(0.62);
}

.passage__veil {
  background:
    linear-gradient(90deg, rgba(2, 7, 9, 0.78) 0%, rgba(2, 7, 9, 0.13) 42%, rgba(2, 7, 9, 0.34) 100%),
    linear-gradient(0deg, rgba(2, 6, 8, 0.68), transparent 35% 72%, rgba(2, 6, 8, 0.58));
}

.passage__chapter {
  position: absolute;
  top: calc(var(--header-h) + 2.2rem);
  left: var(--pad);
  margin: 0;
  color: rgba(255, 255, 255, 0.52);
  font-size: 0.56rem;
  letter-spacing: 0.22em;
}

.passage__chapter span { color: var(--signal); }

.passage__rail {
  position: absolute;
  right: var(--pad);
  top: 50%;
  display: grid;
  gap: 0.85rem;
  transform: translateY(-50%);
}

.passage__rail i {
  display: block;
  width: 1.8rem;
  height: 1px;
  background: rgba(255, 255, 255, 0.32);
  transition: width 0.35s, background 0.35s;
}

.passage__rail i.is-active {
  width: 3.7rem;
  background: var(--signal);
}

.passage__scenes {
  position: relative;
  z-index: 2;
  margin-top: -100svh;
}

.scene {
  display: grid;
  grid-template-columns: 1fr minmax(17rem, 38rem);
  align-items: center;
  min-height: 100svh;
  padding: var(--header-h) calc(var(--pad) + 7vw) 3rem var(--pad);
}

.scene__number {
  align-self: end;
  padding-bottom: 1.5rem;
  color: rgba(255, 255, 255, 0.35);
  font-size: clamp(4rem, 10vw, 11rem);
  font-weight: 800;
  letter-spacing: -0.08em;
  line-height: 0.8;
  opacity: 0;
  transform: translateY(1rem);
  transition: opacity 0.7s, transform 0.7s;
}

.scene__copy {
  opacity: 0.12;
  transform: translateY(4rem);
  transition: opacity 0.7s, transform 0.7s;
}

.scene.is-active .scene__copy,
.scene.is-active .scene__number {
  opacity: 1;
  transform: translateY(0);
}

.scene h2 {
  margin: 0;
  font-size: clamp(3rem, 6vw, 7rem);
  font-weight: 800;
  letter-spacing: -0.07em;
  line-height: 0.98;
}

.scene__copy > p:last-child {
  margin: 1.4rem 0 0;
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.86rem;
  letter-spacing: 0.12em;
}

.archive {
  position: relative;
  padding: clamp(7rem, 14vw, 14rem) var(--pad);
  overflow: hidden;
  background:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    var(--paper);
  background-size: 5rem 5rem;
  color: #101517;
}

.archive::before {
  position: absolute;
  top: -5vw;
  right: -2vw;
  color: rgba(10, 15, 17, 0.055);
  font-size: 34vw;
  font-weight: 900;
  letter-spacing: -0.13em;
  line-height: 0.75;
  content: "09";
  pointer-events: none;
}

.archive__header {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1.5fr 1fr;
  align-items: end;
  gap: 2rem;
  margin-bottom: clamp(5rem, 10vw, 10rem);
}

.archive .eyebrow { color: #303d3e; }

.archive__header .eyebrow { align-self: start; }

.archive__header h2 {
  margin: 0;
  font-size: clamp(5rem, 12vw, 13rem);
  font-weight: 900;
  letter-spacing: -0.1em;
  line-height: 0.72;
}

.archive__lead {
  margin: 0;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid rgba(10, 15, 17, 0.48);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  line-height: 1.8;
}

.archive__body {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(18rem, 0.75fr);
  gap: clamp(3rem, 8vw, 9rem);
  align-items: center;
}

.archive__figure {
  position: relative;
  margin: 0;
}

.archive__crop {
  height: min(72vw, 58rem);
  overflow: hidden;
  background: #202829;
}

.archive__crop img {
  height: 112%;
  object-fit: cover;
  object-position: 50% 72%;
  transform: translateY(var(--depth-y, -5%)) scale(1.035);
  filter: grayscale(0.55) contrast(1.18) brightness(0.72);
  will-change: transform;
}

.archive__figure figcaption {
  display: flex;
  justify-content: space-between;
  margin-top: 0.75rem;
  font-size: 0.54rem;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.archive__scan {
  position: absolute;
  inset: 0;
  width: 100%;
  height: calc(100% - 1.6rem);
  fill: none;
  stroke: var(--signal);
  stroke-width: 1.2;
  pointer-events: none;
}

.archive__record {
  align-self: end;
  padding-bottom: 8vh;
}

.record-row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: baseline;
  gap: 1rem;
  padding: 1.15rem 0;
  border-top: 1px solid rgba(10, 15, 17, 0.4);
}

.record-row:last-of-type { border-bottom: 1px solid rgba(10, 15, 17, 0.4); }

.record-row span {
  font-size: 0.55rem;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.record-row strong {
  text-align: right;
  font-size: clamp(0.78rem, 1.2vw, 1rem);
  letter-spacing: 0.06em;
}

.record-row--status strong {
  color: #3e4b04;
}

.record-row--status i {
  display: inline-block;
  width: 0.45rem;
  height: 0.45rem;
  margin-right: 0.4rem;
  border-radius: 50%;
  background: #849c10;
  box-shadow: 0 0 0 0 rgba(132, 156, 16, 0.4);
  animation: status-pulse 1.8s infinite;
}

@keyframes status-pulse {
  70% { box-shadow: 0 0 0 0.6rem rgba(132, 156, 16, 0); }
}

.record-note {
  margin: 2rem 0 0;
  color: rgba(10, 15, 17, 0.66);
  font-family: "Noto Sans SC", "Microsoft YaHei", sans-serif;
  font-size: 0.78rem;
  line-height: 1.9;
}

.archive__quote {
  position: relative;
  z-index: 1;
  margin: clamp(8rem, 16vw, 17rem) 0 0 clamp(10%, 16vw, 20%);
}

.archive__quote p {
  margin: 0;
  font-size: clamp(2.4rem, 6vw, 6.5rem);
  font-weight: 800;
  letter-spacing: -0.07em;
  line-height: 1.05;
}

.archive__quote span {
  display: block;
  margin-top: 2rem;
  font-size: 0.56rem;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.interlude {
  position: relative;
  display: grid;
  min-height: 110svh;
  place-content: center;
  overflow: hidden;
  padding: 8rem var(--pad);
  text-align: center;
  isolation: isolate;
}

.interlude__media {
  position: absolute;
  z-index: -2;
  inset: -8%;
}

.interlude__media img {
  height: 100%;
  object-fit: cover;
  object-position: 50% 80%;
  filter: saturate(0.22) brightness(0.35) contrast(1.2);
}

.interlude::after {
  position: absolute;
  z-index: -1;
  inset: 0;
  background: radial-gradient(circle at 50% 40%, transparent, rgba(2, 5, 6, 0.74) 78%), linear-gradient(rgba(3, 7, 9, 0.48), rgba(3, 7, 9, 0.88));
  content: "";
}

.interlude__index,
.interlude__signature {
  margin: 0;
  color: rgba(255, 255, 255, 0.44);
  font-size: 0.54rem;
  font-weight: 700;
  letter-spacing: 0.22em;
}

.interlude blockquote {
  margin: 2.6rem auto;
  font-family: "Noto Sans SC", "Microsoft YaHei", sans-serif;
  font-size: clamp(1.6rem, 4vw, 4.1rem);
  font-weight: 300;
  letter-spacing: 0.07em;
  line-height: 1.65;
}

.protocol {
  position: relative;
  min-height: 100svh;
  overflow: hidden;
  padding: calc(var(--header-h) + 5rem) var(--pad) 2rem;
  background: #070b0d;
}

.protocol__content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: calc(100svh - var(--header-h) - 12rem);
  width: min(54rem, 80vw);
}

.protocol__content h2 {
  margin: 0;
  font-size: clamp(4rem, 9vw, 10rem);
  font-weight: 900;
  letter-spacing: -0.085em;
  line-height: 0.82;
}

.protocol__content > p:not(.eyebrow) {
  max-width: 31rem;
  margin: 2.6rem 0 0 18%;
  color: rgba(255, 255, 255, 0.56);
  font-family: "Noto Sans SC", "Microsoft YaHei", sans-serif;
  font-size: 0.78rem;
  line-height: 1.9;
}

.protocol__button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(28rem, 100%);
  margin: 2.2rem 0 0 18%;
  padding: 1.35rem 1.45rem;
  border: 1px solid rgba(255, 255, 255, 0.42);
  background: transparent;
  color: var(--white);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  cursor: pointer;
  transition: background 0.3s, color 0.3s, padding 0.3s;
}

.protocol__button:hover,
.protocol__button:focus-visible {
  padding-right: 1rem;
  background: var(--signal);
  color: var(--ink);
  outline: none;
}

.protocol__button svg {
  width: 2.6rem;
  fill: none;
  stroke: currentColor;
}

.protocol__orbit {
  position: absolute;
  z-index: 0;
  top: 50%;
  right: -12vw;
  width: min(68vw, 64rem);
  aspect-ratio: 1;
  transform: translateY(-50%);
}

.protocol__orbit span {
  position: absolute;
  inset: 0;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 50%;
}

.protocol__orbit span:nth-child(2) { inset: 13%; }
.protocol__orbit span:nth-child(3) { inset: 27%; }

.protocol__orbit i {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 52%;
  height: 1px;
  transform-origin: left;
  background: linear-gradient(90deg, var(--signal), transparent);
  animation: radar 7s linear infinite;
}

@keyframes radar {
  to { transform: rotate(360deg); }
}

.site-footer {
  position: absolute;
  right: var(--pad);
  bottom: 2rem;
  left: var(--pad);
  display: flex;
  justify-content: space-between;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  color: rgba(255, 255, 255, 0.36);
  font-size: 0.5rem;
  letter-spacing: 0.18em;
}

.signal-modal[hidden] { display: none; }

.signal-modal {
  position: fixed;
  z-index: 400;
  inset: 0;
  display: grid;
  place-items: center;
  overflow: hidden;
  padding: var(--pad);
  background: var(--signal);
  color: #0a0d0e;
  opacity: 0;
  animation: modal-in 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes modal-in { to { opacity: 1; } }

.signal-modal__close {
  position: absolute;
  z-index: 3;
  top: 2rem;
  right: var(--pad);
  padding: 0.7rem;
  border: 0;
  background: none;
  color: #0a0d0e;
  font-size: 0.58rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  cursor: pointer;
}

.signal-modal__content {
  position: relative;
  z-index: 2;
  width: min(66rem, 100%);
}

.signal-modal .eyebrow { color: #283000; }

.signal-modal h2 {
  margin: 0;
  font-size: clamp(4rem, 11vw, 12rem);
  font-weight: 900;
  letter-spacing: -0.09em;
  line-height: 0.78;
}

.signal-modal__content > p:last-child {
  max-width: 27rem;
  margin: 2rem 0 0 auto;
  font-family: "Noto Sans SC", "Microsoft YaHei", sans-serif;
  font-size: 0.78rem;
  line-height: 1.8;
}

.signal-modal__code {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 4rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(10, 13, 14, 0.52);
}

.signal-modal__code span {
  font-size: 0.56rem;
  font-weight: 700;
  letter-spacing: 0.2em;
}

.signal-modal__code strong {
  font-size: clamp(1.5rem, 4vw, 4rem);
  letter-spacing: -0.04em;
}

.signal-modal__scan {
  position: absolute;
  z-index: 1;
  top: -20%;
  bottom: -20%;
  left: -10%;
  width: 20%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.42), transparent);
  transform: skewX(-12deg);
  animation: scan 2s 0.2s ease-in-out forwards;
}

@keyframes scan { to { left: 110%; } }

.signal-modal__pulse {
  position: absolute;
  right: -10vw;
  bottom: -20vw;
  width: 55vw;
  aspect-ratio: 1;
  border: 1px solid rgba(10, 13, 14, 0.25);
  border-radius: 50%;
  box-shadow: 0 0 0 8vw rgba(10, 13, 14, 0.05), 0 0 0 16vw rgba(10, 13, 14, 0.035);
}

.reveal {
  opacity: 0;
  transform: translateY(2.5rem);
  transition: opacity 0.85s, transform 0.85s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.cursor {
  position: fixed;
  z-index: 500;
  top: 0;
  left: 0;
  width: 1.5rem;
  height: 1.5rem;
  border: 1px solid rgba(214, 255, 56, 0.7);
  border-radius: 50%;
  pointer-events: none;
  opacity: 0;
  transform: translate3d(-50%, -50%, 0);
  transition: width 0.2s, height 0.2s, background 0.2s, opacity 0.2s;
}

.cursor span {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 2px;
  height: 2px;
  transform: translate(-50%, -50%);
  background: var(--signal);
}

.cursor.is-active {
  width: 3.2rem;
  height: 3.2rem;
  background: rgba(214, 255, 56, 0.12);
}

@media (pointer: fine) {
  body,
  a,
  button { cursor: none; }
  .cursor { opacity: 1; }
}

@media (max-width: 800px) {
  :root { --header-h: 4.5rem; }

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

  .site-nav { display: none; }

  .hero__content {
    justify-content: flex-end;
    width: 100%;
    padding-bottom: 9.5rem;
  }

  .hero h1 {
    max-width: 7em;
    font-size: clamp(3.45rem, 17vw, 6.8rem);
  }

  .hero__intro {
    align-self: flex-start;
    margin-top: 2rem;
    font-size: 0.7rem;
  }

  .hero__media img { object-position: 51% 70%; }
  .edge-data--right { display: none; }
  .hero__index { bottom: 2.3rem; }
  .descend { bottom: 2rem; }

  .scene {
    grid-template-columns: 1fr;
    align-content: end;
    padding: 7rem var(--pad) 8rem;
  }

  .scene__number {
    display: none;
  }

  .scene h2 { font-size: clamp(3.3rem, 15vw, 6.5rem); }
  .passage__rail { right: 1.25rem; }
  .passage__media img { object-position: 47% 80%; }

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

  .archive__header h2 {
    font-size: clamp(6rem, 27vw, 10rem);
  }

  .archive__lead { width: min(22rem, 90%); }

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

  .archive__crop { height: 135vw; }
  .archive__record { padding-bottom: 0; }

  .archive__quote {
    margin-left: 0;
  }

  .interlude blockquote {
    font-size: clamp(1.4rem, 6.4vw, 2.5rem);
  }

  .protocol__content {
    width: 100%;
  }

  .protocol__content h2 {
    font-size: clamp(4rem, 18vw, 7rem);
  }

  .protocol__content > p:not(.eyebrow),
  .protocol__button {
    margin-left: 0;
  }

  .protocol__orbit {
    right: -50vw;
    width: 110vw;
    opacity: 0.62;
  }

  .site-footer span:last-child { display: none; }
  .signal-modal__content > p:last-child { margin-left: 0; }
}

@media (max-width: 480px) {
  .sound-toggle__label { display: none; }
  .edge-data--left { display: none; }
  .hero__line--indent { padding-left: 0.75em; }
  .archive { background-size: 3.5rem 3.5rem; }
  .record-row { grid-template-columns: 0.9fr 1.1fr; }
  .archive__figure figcaption span:last-child { display: none; }
  .signal-modal h2 { font-size: 20vw; }
}

@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;
  }
  .reveal { opacity: 1; transform: none; }
  .hero__line { opacity: 1; transform: none; }
  .cursor { display: none; }
}