:root {
  --paper: #f4f3f5;
  --ink: #171716;
  --muted: rgba(23, 23, 22, .55);
  --faint: rgba(23, 23, 22, .14);
  --accent: #f33d55;
  --cover-width: clamp(260px, 18vw, 360px);
  color: var(--ink);
  background: var(--paper);
  font-family: var(--font-sans);
}

* { box-sizing: border-box; }
html, body { min-width: 320px; min-height: 100%; margin: 0; }
body { overflow: hidden; background: var(--paper); }
a { color: inherit; text-decoration: none; }
a:focus-visible { outline: 1px solid var(--ink); outline-offset: 7px; }

.home {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  overflow: hidden;
  background-color: var(--paper);
  background-image:
    repeating-linear-gradient(0deg, transparent 0 47px, rgba(23, 23, 22, .014) 47px 48px),
    repeating-linear-gradient(90deg, transparent 0 47px, rgba(23, 23, 22, .011) 47px 48px);
}

.home::before {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 50% 50%, rgba(243, 61, 85, .035), transparent 31%),
    linear-gradient(135deg, rgba(255, 255, 255, .34), transparent 38% 62%, rgba(54, 87, 184, .018));
  content: "";
}

.home::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 30;
  pointer-events: none;
  opacity: .022;
  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='.82' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.home-meta,
.home-status,
.home-footer {
  position: absolute;
  z-index: 15;
  font-family: var(--font-sans);
  font-size: 10px;
  line-height: 1.25;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.home-meta { top: 27px; left: 31px; }
.home-meta strong { display: block; font-family: var(--font-display); font-size: 15px; font-weight: 600; letter-spacing: -.01em; }
.home-meta span { display: block; margin-top: 5px; color: var(--muted); }

.home-status { top: 28px; right: 31px; text-align: right; }
.home-status span { display: block; }
.home-status span:last-child { margin-top: 4px; color: var(--muted); }

.home-artifact-mode {
  position: absolute;
  top: 15px;
  left: 50%;
  z-index: 22;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  color: var(--muted);
  font-size: 9px;
  letter-spacing: .09em;
  text-align: center;
  text-transform: uppercase;
  transform: translateX(-50%);
  white-space: nowrap;
}
.home-artifact-mode small { font-size: 8px; letter-spacing: .08em; opacity: .68; }
.home-mode-switch {
  display: grid;
  width: 44px;
  height: 32px;
  place-items: center;
  border: 0;
  border-radius: 0;
  background: transparent;
  line-height: 0;
  cursor: pointer;
  transition: background-color 160ms ease, border-color 160ms ease, transform 160ms var(--site-ease-out, cubic-bezier(.23, 1, .32, 1));
}
.rainbow-flag { position: relative; display: grid; width: 24px; height: 15px; grid-template-rows: repeat(6, 1fr); border: 1px solid #171716; transform-origin: center; transition: transform 160ms var(--site-ease-out, cubic-bezier(.23, 1, .32, 1)); }
.rainbow-flag i { display: block; }
.rainbow-flag i:nth-child(1) { background: #f35d27; }
.rainbow-flag i:nth-child(2) { background: #fff100; }
.rainbow-flag i:nth-child(3) { background: #049978; }
.rainbow-flag i:nth-child(4) { background: #397f7f; }
.rainbow-flag i:nth-child(5) { background: #5984c9; }
.rainbow-flag i:nth-child(6) { background: #993370; }
.home-mode-switch:focus-visible { background: transparent; }
.home-mode-switch:active { transform: scale(.96); }
.home-mode-switch.is-launching .rainbow-flag { transform: scale(.94); }

.mode-transition { position: fixed; inset: 0; z-index: 240; display: grid; grid-template-rows: repeat(6, 1fr); pointer-events: none; }
.mode-transition span { display: block; transform: scaleX(0); transition: transform 360ms var(--site-ease-in-out, cubic-bezier(.77, 0, .175, 1)) var(--delay); }
.mode-transition span:nth-child(odd) { transform-origin: left center; }
.mode-transition span:nth-child(even) { transform-origin: right center; }
.mode-transition span:nth-child(1) { background: #e83843; }
.mode-transition span:nth-child(2) { background: #ee8233; }
.mode-transition span:nth-child(3) { background: #efcf39; }
.mode-transition span:nth-child(4) { background: #4b9b59; }
.mode-transition span:nth-child(5) { background: #4880b8; }
.mode-transition span:nth-child(6) { background: #76539d; }
.mode-transition.is-active span { transform: scaleX(1); }

.concept-note {
  --quadrant-color: var(--ink);
  position: absolute;
  z-index: 12;
  display: flex;
  width: max-content;
  max-width: 330px;
  flex-direction: column;
  transition: opacity 220ms ease, transform 240ms var(--site-ease-out, cubic-bezier(.23, 1, .32, 1));
}

.concept-note::after {
  content: "";
  width: 72px;
  height: 1px;
  margin-top: 10px;
  background: var(--quadrant-color);
  opacity: .64;
  transform: scaleX(.48);
  transform-origin: left;
  transition: transform 180ms var(--site-ease-out, cubic-bezier(.23, 1, .32, 1)), opacity 160ms ease;
}

.concept-number,
.concept-note small,
.concept-note em {
  font-family: var(--font-sans);
  font-style: normal;
  text-transform: uppercase;
}

.concept-number {
  margin-bottom: 5px;
  font-size: 10px;
  line-height: 1;
  letter-spacing: .1em;
  color: var(--quadrant-color);
}

.concept-note strong {
  font-family: var(--font-display);
  font-size: clamp(20px, 1.7vw, 28px);
  font-weight: 400;
  line-height: .95;
  letter-spacing: -.035em;
  text-wrap: balance;
  transform-origin: center bottom;
  transition: color 160ms ease, transform 180ms var(--site-ease-out, cubic-bezier(.23, 1, .32, 1));
}

.concept-note small {
  max-width: 290px;
  margin-top: 7px;
  color: var(--muted);
  font-size: 9px;
  line-height: 1.25;
  letter-spacing: .06em;
  transition: opacity 160ms ease;
}

.concept-note em {
  position: absolute;
  top: calc(100% + 18px);
  width: max-content;
  color: var(--ink);
  font-size: 9px;
  letter-spacing: .09em;
  opacity: .58;
  transform: translateY(0);
  transition: color 160ms ease, opacity 160ms ease, transform 180ms var(--site-ease-out, cubic-bezier(.23, 1, .32, 1));
}

.concept-note--link { padding: 12px 14px; cursor: pointer; }
.concept-note--link:focus-visible strong { color: var(--quadrant-color); transform: translateY(-2px); }
.concept-note--link:focus-visible::after { opacity: 1; transform: scaleX(1); }
.concept-note--link:focus-visible em { color: var(--quadrant-color); opacity: 1; transform: translateY(-1px); }
.concept-note--link:active strong,
.concept-note--link.is-selected strong { transform: translateY(0) scale(.98); }
.concept-note--link.is-selected::after { opacity: 1; transform: scaleX(1); }

.concept-note--pending { cursor: default; }
.concept-note--pending small:last-child { margin-top: 10px; font-size: 7px; letter-spacing: .1em; opacity: .7; }

.concept-note--top {
  --quadrant-color: #f03e53;
  top: 12.5%;
  left: 50%;
  width: 400px;
  align-items: center;
  text-align: center;
  transform: translateX(-50%);
}

.concept-note--top::after { margin-right: auto; margin-left: auto; transform-origin: center; }
.concept-note--top em,
.concept-note--bottom em { left: 50%; transform: translate(-50%, 0); }
.concept-note--top:focus-visible em,
.concept-note--bottom:focus-visible em { transform: translate(-50%, -1px); }

.concept-note--left {
  --quadrant-color: #f35d27;
  top: 50%;
  right: calc(50% + 250px);
  width: 280px;
  transform: translateY(-50%);
}

.concept-note--right {
  --quadrant-color: #298b7f;
  top: 50%;
  left: calc(50% + 250px);
  width: 305px;
  transform: translateY(-50%);
}

.concept-note--bottom {
  --quadrant-color: #993370;
  top: calc(50% + 242px);
  left: 50%;
  width: 470px;
  align-items: center;
  text-align: center;
  transform: translateX(-50%);
}

.concept-note--bottom::after { margin-right: auto; margin-left: auto; }

.cover-visual {
  --preview-aspect: .707;
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 8;
  width: var(--cover-width);
  aspect-ratio: var(--preview-aspect);
  margin: 0;
  pointer-events: none;
  transform: translate(-50%, -50%);
  transition: width 580ms cubic-bezier(.22, 1, .36, 1), transform 580ms cubic-bezier(.22, 1, .36, 1), opacity 320ms ease;
}

.cover-frame {
  position: absolute;
  inset: 0;
  z-index: 2;
  overflow: hidden;
  border: 1px solid rgba(23, 23, 22, .34);
  background: var(--paper);
}

.cover-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  will-change: opacity, transform;
  transition: opacity 440ms ease, transform 640ms cubic-bezier(.22, 1, .36, 1);
}

.cover-image--default { opacity: 1; object-fit: cover; }
.cover-image--preview { opacity: 0; object-fit: cover; object-position: left center; background: var(--paper); filter: none; transform: scale(1.035); }
.cover-image--preview[data-half="left"] { object-position: left center; }
.cover-image--preview[data-half="right"] { object-position: right center; }

.cover-shadow {
  position: absolute;
  inset: 8px -10px -11px 9px;
  z-index: 1;
  background: rgba(23, 23, 22, .11);
  filter: blur(10px);
  transition: opacity 420ms ease, transform 580ms cubic-bezier(.22, 1, .36, 1);
}

.cover-visual figcaption {
  position: absolute;
  top: calc(100% + 9px);
  right: 0;
  left: 0;
  z-index: 3;
  display: flex;
  justify-content: space-between;
  gap: 10px;
  color: var(--muted);
  font: 8px/1 var(--font-sans);
  letter-spacing: .075em;
  text-transform: uppercase;
  white-space: nowrap;
}

.home[data-preview^="chapter-"] .cover-visual {
  width: clamp(285px, 20vw, 390px);
  transform: translate(-50%, -50%) scale(1.015);
}

.home[data-preview^="chapter-"] .cover-image--default { opacity: 0; transform: scale(.985); }
.home[data-preview^="chapter-"] .cover-image--preview { opacity: 1; transform: scale(1); }
.home[data-preview^="chapter-"] .cover-shadow { opacity: .65; transform: translate(2px, 3px); }
.home[data-preview="chapter-1"] .concept-note--pending { opacity: .25; }

.preview-metadata {
  display: none;
  position: absolute;
  top: calc(50% - 92px);
  left: calc(50% + 165px);
  z-index: 10;
  width: 130px;
  margin: 0;
  opacity: 0;
  pointer-events: none;
  transform: translateX(-8px);
  transition: opacity 300ms ease 120ms, transform 480ms cubic-bezier(.22, 1, .36, 1) 120ms;
}

.preview-metadata div { margin-bottom: 12px; }
.preview-metadata dt,
.preview-metadata dd {
  font-family: var(--font-sans);
  font-size: 8px;
  line-height: 1.25;
  letter-spacing: .07em;
  text-transform: uppercase;
}
.preview-metadata dt { color: var(--muted); }
.preview-metadata dd { margin: 3px 0 0; }

.home[data-preview^="chapter-"] .preview-metadata { opacity: 1; transform: translateX(0); }

@media (hover: hover) and (pointer: fine) {
  .home-mode-switch:hover { background: transparent; }
  .home-mode-switch:hover .rainbow-flag { transform: translateY(-1px) scale(1.04); }
  .concept-note--link:hover strong { color: var(--quadrant-color); transform: translateY(-2px); }
  .concept-note--link:hover::after { opacity: 1; transform: scaleX(1); }
  .concept-note--link:hover em { color: var(--quadrant-color); opacity: 1; transform: translateY(-1px); }
  .concept-note--top:hover em,
  .concept-note--bottom:hover em { transform: translate(-50%, -1px); }
}

.home-footer {
  right: 31px;
  bottom: 24px;
  left: 31px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  color: var(--muted);
}

.home-footer span:nth-child(2) { color: var(--ink); }
.home-footer span:last-child { justify-self: end; color: var(--ink); }
.home-replay { justify-self: center; color: var(--ink); border-bottom: 1px solid transparent; }
.home-replay:hover,
.home-replay:focus-visible { border-bottom-color: currentColor; }

.registration {
  position: absolute;
  z-index: 3;
  color: rgba(23, 23, 22, .3);
  font: 10px/1 var(--font-sans);
}
.registration--one { top: 20%; left: 17%; }
.registration--two { top: 18%; right: 17%; }
.registration--three { bottom: 17%; left: 20%; }
.registration--four { right: 19%; bottom: 16%; }

.home[data-phase="entering"] .home-meta,
.home[data-phase="entering"] .home-status,
.home[data-phase="entering"] .home-footer,
.home[data-phase="entering"] .registration,
.home[data-phase="entering"] .preview-metadata { opacity: 0; transition: opacity 260ms ease; }

.home[data-phase="entering"] .concept-note--top { opacity: 0; transform: translate(-50%, -34px); }
.home[data-phase="entering"] .concept-note--left { opacity: 0; transform: translate(-30px, -50%); }
.home[data-phase="entering"] .concept-note--right { opacity: 0; transform: translate(30px, -50%); }
.home[data-phase="entering"] .concept-note--bottom { opacity: 0; transform: translate(-50%, 34px); }
.home[data-phase="entering"] .cover-visual { opacity: 0; }

.transition-root { position: fixed; inset: 0; z-index: 100; pointer-events: none; }

.chapter-two-exit-sphere {
  position: fixed;
  top: var(--sphere-y);
  left: var(--sphere-x);
  width: var(--sphere-size);
  height: var(--sphere-size);
  overflow: hidden;
  border-radius: 50%;
  background: #080808;
  backface-visibility: hidden;
  contain: strict;
  transform: translate3d(-50%, -50%, 0) scale(.16);
  transform-origin: center;
  will-change: transform;
}

.chapter-two-exit-sphere::after {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(circle at 34% 28%, rgba(255,255,255,.15), rgba(255,255,255,.025) 34%, rgba(0,0,0,.2) 68%, rgba(0,0,0,.55));
  content: '';
  opacity: .55;
  animation: chapter-two-sphere-sheen 720ms cubic-bezier(.65, 0, .35, 1) both;
}

@keyframes chapter-two-sphere-sheen {
  0%, 38% { opacity: .55; }
  100% { opacity: 0; }
}

.archive-intro-handoff {
  position: fixed;
  z-index: 220;
  overflow: hidden;
  margin: 0;
  pointer-events: none;
  border: 1px solid rgba(23, 23, 22, .34);
  background: var(--paper);
  transform: scale(1);
  transform-origin: 50% 50%;
  will-change: transform, opacity;
}

.archive-intro-handoff img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.chapter-flight {
  position: fixed;
  z-index: 2;
  overflow: hidden;
  margin: 0;
  border: 1px solid rgba(23, 23, 22, .35);
  background: var(--paper);
  box-shadow: 0 14px 36px rgba(23, 23, 22, .08);
  transform-origin: top left;
  will-change: transform;
}

.chapter-flight img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: left center;
  filter: none;
}
.chapter-flight img[data-half="left"] { object-position: left center; }
.chapter-flight img[data-half="right"] { object-position: right center; }

.chapter-flight--sphere { border-radius: 50%; }

@media (min-width: 1750px) {
  :root { --cover-width: 360px; }
  .concept-note--left { right: calc(50% + 330px); }
  .concept-note--right { left: calc(50% + 330px); }
  .concept-note--bottom { top: calc(50% + 270px); }
  .preview-metadata { left: calc(50% + 190px); }
}

@media (max-width: 960px) {
  .concept-note--left { right: calc(50% + 170px); max-width: calc(50vw - 194px); }
  .concept-note--right { left: calc(50% + 170px); max-width: calc(50vw - 194px); }
  .preview-metadata { left: calc(50% + 145px); }
}

@media (max-height: 880px) and (min-width: 701px) {
  :root { --cover-width: clamp(220px, calc((100svh - 440px) * .707), 260px); }
  .concept-note--top { top: clamp(72px, calc(100svh - 688px), 104px); }
  .concept-note--bottom { top: calc(50% + var(--cover-width) * .7072 + 30px); }
  .concept-note em { top: calc(100% + 6px); }
}

@media (max-width: 700px) {
  body { overflow: auto; }

  .home {
    min-height: 980px;
    padding: 20px 18px 28px;
    overflow: hidden;
  }

  .home-meta { top: 20px; left: 18px; }
  .home-status { top: 21px; right: 18px; }
  .home-status span:first-child { display: none; }
  .home-artifact-mode { top: 7px; }

  .cover-visual {
    top: 185px;
    width: min(64vw, 280px);
    transform: translateX(-50%);
  }

  .home[data-preview^="chapter-"] .cover-visual {
    width: min(68vw, 300px);
    transform: translateX(-50%) scale(1.01);
  }

  .preview-metadata {
    top: 280px;
    right: 18px;
    left: auto;
    width: 108px;
  }

  .concept-note,
  .concept-note--top,
  .concept-note--left,
  .concept-note--right,
  .concept-note--bottom {
    position: absolute;
    right: 18px;
    left: 18px;
    width: auto;
    max-width: none;
    align-items: flex-start;
    padding: 13px 0 12px;
    border-top: 1px solid rgba(23, 23, 22, .25);
    text-align: left;
    transform: none;
  }

  .concept-note::after { display: none; }
  .concept-note strong { font-size: 22px; }
  .concept-note em { right: 0; left: auto; top: 19px; opacity: .75; transform: none; }
  .concept-note--top { top: 535px; }
  .concept-note--left { top: 635px; }
  .concept-note--right { top: 735px; }
  .concept-note--bottom { top: 855px; border-bottom: 1px solid rgba(23, 23, 22, .25); }
  .concept-note--bottom strong { max-width: 330px; }
  .concept-note--pending small:last-child { position: absolute; right: 0; bottom: 13px; }

  .home-footer {
    right: 18px;
    bottom: 13px;
    left: 18px;
    grid-template-columns: 1fr auto;
  }
  .home-replay { display: none; }
  .registration { display: none; }

  .home[data-phase="entering"] .concept-note--top,
  .home[data-phase="entering"] .concept-note--left,
  .home[data-phase="entering"] .concept-note--right,
  .home[data-phase="entering"] .concept-note--bottom { opacity: 0; transform: translateY(24px); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: .001ms !important;
    transition-duration: .001ms !important;
    transition-delay: 0ms !important;
  }
}