:root {
  color-scheme: dark;
  --font-display: ui-serif, Georgia, Cambria, "Times New Roman", serif;
  --font-interface: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --color-black: #000;
  --color-paper: #f4f1ea;
  --color-muted: #aeb9bc;
  --color-faint: rgba(244, 241, 234, 0.42);
  --color-rule: rgba(244, 241, 234, 0.2);
  --color-focus: #dce9ee;
  --page-gutter: clamp(1.4rem, 5vw, 5rem);
  --narrative-max: 72rem;
  --copy-max: 42rem;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  min-width: 0;
  background: var(--color-black);
  scroll-behavior: auto;
}

body {
  margin: 0;
  min-width: 0;
  overflow-x: hidden;
  background: var(--color-black);
  color: var(--color-paper);
  font-family: var(--font-interface);
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
}

.experience-return {
  position: fixed;
  z-index: 10;
  top: clamp(1rem, 3vw, 2rem);
  right: var(--page-gutter);
  max-width: calc(100vw - (2 * var(--page-gutter)));
  padding-block: 0.5rem;
  border-bottom: 1px solid var(--color-faint);
  color: var(--color-muted);
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.065em;
  text-decoration: none;
  opacity: 0.72;
  transition:
    color 180ms ease,
    border-color 180ms ease,
    opacity 180ms ease;
}

.experience-return:hover,
.experience-return:focus-visible,
.experience-return.is-revealed {
  border-color: var(--color-paper);
  color: var(--color-paper);
  opacity: 1;
}

.experience-return:focus-visible,
.experience-exit a:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 4px;
}

.experience {
  width: 100%;
  background: var(--color-black);
}

.narrative-section {
  width: min(100%, var(--narrative-max));
  margin-inline: auto;
  padding:
    clamp(7rem, 18vh, 13rem)
    var(--page-gutter)
    clamp(8rem, 24vh, 17rem);
}

.narrative-section--prologue {
  padding-top: 0;
  padding-inline: 0;
}

.narrative-section__header {
  padding-top: 1rem;
  display: grid;
  gap: clamp(1.5rem, 4vw, 3rem);
  border-top: 1px solid var(--color-rule);
}

.narrative-section__header > p {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.72rem;
  font-weight: 650;
  line-height: 1.4;
  letter-spacing: 0.1em;
}

.narrative-section__header h1,
.narrative-section__header h2 {
  max-width: 15ch;
  margin: 0;
  color: var(--color-paper);
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 5.25rem);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

.narrative-section__header--hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  border: 0;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.threshold {
  min-height: 100svh;
  padding: clamp(6rem, 12vh, 9rem) var(--page-gutter);
  display: grid;
  align-content: center;
  justify-items: center;
  gap: clamp(1.75rem, 5vh, 3.5rem);
  text-align: center;
}

.threshold p {
  max-width: 24ch;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 6vw, 5.2rem);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

.js [data-prologue-opening],
.js [data-prologue-response] {
  opacity: 0;
}

.js.experience-started [data-prologue-opening] {
  animation: prologue-line-in 900ms ease forwards;
}

.js.experience-started [data-prologue-response] {
  animation: prologue-line-in 900ms 1.15s ease forwards;
}

.narrative-copy {
  width: min(100%, var(--copy-max));
  margin: clamp(5rem, 12vh, 9rem) 0 0 auto;
}

.narrative-copy--prologue {
  margin-inline: auto;
  padding-inline: var(--page-gutter);
}

.narrative-copy > p,
.dialogue-echo p {
  margin: 0;
  color: var(--color-paper);
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 2.4vw, 2.15rem);
  font-weight: 400;
  line-height: 1.45;
  letter-spacing: -0.018em;
  text-wrap: pretty;
}

.narrative-copy > p + p,
.dialogue-echo + p,
.narrative-copy > p + .dialogue-echo {
  margin-top: clamp(1.5rem, 4vw, 2.5rem);
}

.line-group span {
  display: block;
}

.dialogue-echo {
  max-width: 32rem;
  margin-right: 0;
  margin-bottom: 0;
  margin-left: clamp(1rem, 6vw, 5rem);
  padding: clamp(2rem, 6vw, 4.5rem) 0;
  border: 0;
}

.dialogue-echo p {
  color: var(--color-muted);
  font-style: normal;
}

.dialogue-echo--memory p {
  color: var(--color-faint);
}

.experience-exit {
  min-height: 85svh;
  width: min(100%, var(--narrative-max));
  margin-inline: auto;
  padding:
    clamp(8rem, 22vh, 16rem)
    var(--page-gutter)
    clamp(5rem, 12vh, 9rem);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-end;
  gap: 1.5rem;
}

.experience-exit a {
  max-width: 100%;
  padding-block: 0.45rem;
  text-decoration: none;
}

.experience-exit__primary {
  border-bottom: 1px solid var(--color-paper);
  color: var(--color-paper);
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.5rem);
  line-height: 1.25;
  letter-spacing: -0.02em;
}

.experience-exit__secondary {
  border-bottom: 1px solid var(--color-faint);
  color: var(--color-muted);
  font-size: 0.78rem;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.06em;
}

.experience-exit a:hover {
  color: var(--color-focus);
}

@keyframes prologue-line-in {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@media (max-width: 48rem) {
  :root {
    --page-gutter: clamp(1.25rem, 6vw, 2rem);
  }

  .experience-return {
    --experience-return-top: calc(env(safe-area-inset-top, 0px) + 0.75rem);
    --experience-return-right: calc(env(safe-area-inset-right, 0px) + var(--page-gutter));
    top: var(--experience-return-top);
    right: var(--experience-return-right);
    padding-block: 0.65rem;
    opacity: 0.88;
  }

  .experience-page::before {
    content: "";
    position: fixed;
    z-index: 9;
    top: 0;
    right: 0;
    left: 0;
    height: calc(env(safe-area-inset-top, 0px) + 4rem);
    background: var(--color-black);
    pointer-events: none;
  }

  .narrative-section {
    padding-top: clamp(6rem, 16vh, 9rem);
    padding-bottom: clamp(7rem, 20vh, 11rem);
  }

  .narrative-section--prologue {
    padding-top: 0;
  }

  .threshold {
    justify-items: start;
    text-align: left;
  }

  .threshold p {
    max-width: 13ch;
    font-size: clamp(2.3rem, 12vw, 3.8rem);
  }

  .narrative-section__header {
    gap: 1.5rem;
  }

  .narrative-section__header h1,
  .narrative-section__header h2 {
    max-width: 12ch;
    font-size: clamp(2.35rem, 11vw, 3.7rem);
  }

  .narrative-copy,
  .narrative-copy--prologue {
    width: 100%;
    margin-top: clamp(4rem, 12vh, 6rem);
    margin-inline: 0;
    padding-inline: 0;
  }

  .narrative-copy > p,
  .dialogue-echo p {
    font-size: clamp(1.35rem, 6.5vw, 1.8rem);
    line-height: 1.48;
  }

  .dialogue-echo {
    margin-left: clamp(0.75rem, 5vw, 1.5rem);
    padding-block: clamp(1.75rem, 8vw, 3rem);
  }

  .experience-exit {
    min-height: 75svh;
  }
}

@media (prefers-reduced-motion: reduce) {
  .experience-return {
    transition: none;
  }

  .js.experience-started [data-prologue-opening] {
    animation-duration: 300ms;
    animation-delay: 0ms;
  }

  .js.experience-started [data-prologue-response] {
    animation-duration: 300ms;
    animation-delay: 350ms;
  }
}