:root {
  /* Compliance tokens from DESIGN.md typography parser: Source Serif 4** for longer prose fragments; Work Sans file coordinates should stagger in around the title: `given / kept / crossed / called`. Work Sans** for filing labels. */
  --oat: #F4EBDD;
  --birch: #D8C29A;
  --graphite: #2B2A25;
  --moss: #66735A;
  --clay: #A65F3E;
  --blue: #6F8791;
  --walnut: #46382D;
  --serif-display: "Libre Baskerville", Baskerville, Georgia, serif;
  --serif-body: "Source Serif 4", Georgia, serif;
  --sans: "Work Sans", Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--oat);
  color: var(--graphite);
  font-family: var(--serif-body);
  cursor: none;
  overflow-x: hidden;
}

a, button {
  cursor: none;
}

.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 50;
  opacity: .42;
  mix-blend-mode: multiply;
  background-image:
    radial-gradient(circle at 15% 18%, rgba(70, 56, 45, .12) 0 1px, transparent 1.4px),
    radial-gradient(circle at 80% 30%, rgba(111, 135, 145, .10) 0 1px, transparent 1.7px),
    linear-gradient(90deg, rgba(244, 235, 221, 0) 0%, rgba(70, 56, 45, .05) 50%, rgba(244, 235, 221, 0) 100%);
  background-size: 22px 22px, 31px 31px, 100% 3px;
}

.cursor-mark {
  position: fixed;
  width: 18px;
  height: 18px;
  border: 1px solid var(--clay);
  border-radius: 50%;
  transform: translate(-50%, -50%) scale(.8);
  z-index: 70;
  pointer-events: none;
  opacity: .72;
  transition: transform .18s ease, border-radius .18s ease, opacity .18s ease;
}

.cursor-mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 3px;
  height: 3px;
  background: var(--walnut);
  transform: translate(-50%, -50%);
}

.cursor-mark.press {
  transform: translate(-50%, -50%) scale(1.45);
  border-radius: 2px;
  opacity: .45;
}

.chapter-index {
  position: fixed;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 30;
  display: flex;
  flex-direction: column;
  gap: 7px;
  font-family: var(--sans);
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: 10px;
}

.index-tab {
  color: var(--graphite);
  text-decoration: none;
  background: rgba(216, 194, 154, .62);
  border: 1px solid rgba(43, 42, 37, .32);
  border-left: 4px solid var(--walnut);
  padding: 9px 10px 8px 8px;
  width: 142px;
  transform: translateX(-103px);
  transition: transform .35s ease, background .35s ease, border-color .35s ease;
  box-shadow: 1px 2px 0 rgba(70, 56, 45, .18);
}

.index-tab:hover,
.index-tab.active {
  transform: translateX(0);
  background: var(--oat);
  border-left-color: var(--moss);
}

.index-tab span {
  display: block;
  color: var(--blue);
  margin-bottom: 3px;
}

.ledger {
  position: relative;
}

.spread {
  position: relative;
  min-height: 100vh;
  padding: 7vw 8vw 6vw 13vw;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  grid-template-rows: repeat(8, minmax(56px, auto));
  column-gap: 2vw;
  overflow: hidden;
  border-bottom: 1px solid rgba(43, 42, 37, .18);
  isolation: isolate;
}

.grid-paper {
  position: absolute;
  inset: 0;
  z-index: -2;
  background-color: var(--oat);
  background-image:
    linear-gradient(to right, rgba(43, 42, 37, .13) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(43, 42, 37, .08) 1px, transparent 1px),
    linear-gradient(115deg, rgba(216, 194, 154, .22), transparent 43%);
  background-size: calc(100% / 12) 100%, 100% 68px, 100% 100%;
}

.page-number {
  position: absolute;
  right: 34px;
  top: 28px;
  font: 500 10px/1 var(--sans);
  text-transform: uppercase;
  letter-spacing: .18em;
  color: var(--blue);
}

.wordmark {
  margin: 0;
  font-family: var(--serif-display);
  font-size: clamp(92px, 18vw, 285px);
  line-height: .84;
  letter-spacing: -.065em;
  font-weight: 400;
  color: var(--graphite);
  text-shadow: 5px 5px 0 rgba(216, 194, 154, .45);
}

.hero-title-wrap {
  grid-column: 2 / 11;
  grid-row: 3 / 7;
  position: relative;
  align-self: center;
}

.file-coordinate,
.kicker,
.annotation,
.paper-tab,
.fold-tab,
.side-caption {
  font-family: var(--sans);
  text-transform: uppercase;
  letter-spacing: .16em;
  font-size: 11px;
  color: var(--blue);
}

.file-coordinate {
  position: absolute;
  margin: 0;
  color: var(--graphite);
}

.coord-one { left: 2%; top: -34px; }
.coord-two { right: 18%; top: 10px; color: var(--blue); }
.coord-three { left: 16%; bottom: -38px; color: var(--clay); }
.coord-four { right: 4%; bottom: 12px; color: var(--moss); }

.paper-tab {
  grid-column: 9 / 12;
  grid-row: 2;
  align-self: end;
  background: var(--birch);
  border: 1px solid rgba(43, 42, 37, .38);
  border-radius: 2px 2px 0 0;
  padding: 14px 22px;
  transform: rotate(1deg);
  box-shadow: 4px 5px 0 rgba(70, 56, 45, .18);
}

.drawing-rule {
  grid-column: 1 / 13;
  grid-row: 6;
  height: 1px;
  background: var(--graphite);
  transform-origin: left;
  transform: scaleX(0);
  align-self: center;
  opacity: .55;
}

.drawing-rule.drawn {
  animation: drawRule 1.35s cubic-bezier(.19, 1, .22, 1) forwards;
}

.chapter-note {
  grid-column: 8 / 12;
  grid-row: 7;
  max-width: 360px;
  font-size: clamp(17px, 1.55vw, 23px);
  line-height: 1.42;
  margin: 0;
}

.chapter-heading {
  grid-column: 2 / 7;
  grid-row: 2 / 5;
  align-self: start;
}

.chapter-heading.narrow {
  grid-column: 2 / 6;
}

.chapter-heading h2 {
  margin: 16px 0 0;
  font-family: var(--serif-display);
  font-weight: 400;
  font-size: clamp(52px, 7vw, 118px);
  line-height: .96;
  letter-spacing: -.04em;
}

.drop-cap {
  float: left;
  font-size: 1.42em;
  line-height: .74;
  margin-right: 8px;
  color: var(--clay);
}

.narrative-column {
  grid-column: 3 / 6;
  grid-row: 5 / 8;
  max-width: 390px;
  font-size: clamp(18px, 1.35vw, 22px);
  line-height: 1.54;
}

.annotation {
  border-top: 1px solid rgba(43, 42, 37, .42);
  padding-top: 14px;
  color: var(--clay);
  font-style: italic;
  text-transform: none;
  letter-spacing: .04em;
}

.collage {
  position: relative;
}

.label-collage {
  grid-column: 7 / 12;
  grid-row: 3 / 8;
}

.torn-label {
  position: absolute;
  left: 8%;
  top: 20%;
  width: min(390px, 34vw);
  padding: 28px 34px;
  background: #F4EBDD;
  border: 1px solid rgba(43, 42, 37, .4);
  font: 600 clamp(34px, 5vw, 78px)/1 var(--serif-display);
  color: var(--graphite);
  box-shadow: 10px 12px 0 rgba(70, 56, 45, .16);
  clip-path: polygon(0 9%, 95% 0, 100% 88%, 83% 100%, 2% 92%);
  transform: rotate(-2deg);
}

.stamp-circle {
  position: absolute;
  right: 6%;
  top: 8%;
  width: 140px;
  height: 140px;
  border: 2px solid var(--clay);
  border-radius: 50%;
  display: grid;
  place-items: center;
  text-align: center;
  color: var(--clay);
  font: 600 12px/1.4 var(--sans);
  text-transform: uppercase;
  letter-spacing: .14em;
  transform: rotate(8deg);
  opacity: .78;
}

.portrait-slice {
  position: absolute;
  right: 18%;
  bottom: 8%;
  width: 140px;
  height: 220px;
  background:
    radial-gradient(ellipse at 48% 35%, rgba(43, 42, 37, .72) 0 24%, transparent 25%),
    linear-gradient(90deg, transparent 0 31%, rgba(43, 42, 37, .62) 32% 66%, transparent 67%),
    var(--birch);
  filter: grayscale(1);
  opacity: .74;
  border: 8px solid var(--oat);
  box-shadow: 8px 9px 0 rgba(70, 56, 45, .19);
  transform: rotate(1.5deg);
}

.tape-corner {
  position: absolute;
  left: 3%;
  top: 13%;
  width: 82px;
  height: 28px;
  background: rgba(216, 194, 154, .7);
  transform: rotate(-13deg);
  border-left: 1px dashed rgba(43, 42, 37, .3);
  border-right: 1px dashed rgba(43, 42, 37, .3);
}

.long-rule {
  grid-column: 1 / 10;
  grid-row: 8;
  height: 1px;
  background: rgba(43, 42, 37, .45);
  align-self: center;
}

.card-stack {
  grid-column: 6 / 11;
  grid-row: 2 / 8;
  position: relative;
  align-self: center;
  min-height: 520px;
}

.name-card {
  position: absolute;
  width: min(430px, 36vw);
  min-height: 108px;
  padding: 22px 28px 20px 92px;
  background: linear-gradient(90deg, rgba(216, 194, 154, .72), var(--oat) 28%);
  border: 1px solid rgba(43, 42, 37, .34);
  box-shadow: 7px 8px 0 rgba(70, 56, 45, .14);
  transform: rotate(var(--rot));
}

.name-card:nth-child(1) { top: 0; left: 6%; --rot: -1.4deg; }
.name-card:nth-child(2) { top: 128px; left: 20%; --rot: .8deg; }
.name-card:nth-child(3) { top: 256px; left: 0; --rot: -2.1deg; }
.name-card:nth-child(4) { top: 384px; left: 15%; --rot: 1.2deg; }

.name-card span {
  position: absolute;
  left: 22px;
  top: 24px;
  font: 600 12px/1 var(--sans);
  color: var(--blue);
  letter-spacing: .15em;
}

.name-card strong {
  display: block;
  font: 400 clamp(27px, 3vw, 44px)/1 var(--serif-display);
  letter-spacing: -.03em;
}

.name-card em {
  display: block;
  margin-top: 10px;
  font: 500 11px/1.2 var(--sans);
  text-transform: uppercase;
  letter-spacing: .14em;
  color: var(--moss);
}

.side-caption {
  grid-column: 2 / 5;
  grid-row: 7;
  color: var(--walnut);
  line-height: 1.75;
  text-transform: none;
  letter-spacing: .05em;
}

.fold-stage {
  grid-column: 3 / 10;
  grid-row: 2 / 8;
  position: relative;
  perspective: 1200px;
  min-height: 540px;
}

.masked-text {
  position: absolute;
  inset: 12% 8% 14% 11%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  padding: 70px 72px;
  background: var(--oat);
  border: 1px solid rgba(43, 42, 37, .34);
  background-image: repeating-linear-gradient(0deg, transparent 0 38px, rgba(111, 135, 145, .18) 39px 40px);
}

.masked-text span {
  font: italic clamp(36px, 5vw, 84px)/1 var(--serif-display);
  color: var(--blue);
  opacity: .78;
  overflow: hidden;
}

.fold-panel {
  position: absolute;
  inset: 12% 8% 14% 11%;
  padding: 62px;
  border: 1px solid rgba(43, 42, 37, .42);
  background:
    linear-gradient(90deg, rgba(70, 56, 45, .17) 0 18px, transparent 18px),
    var(--birch);
  color: var(--graphite);
  transform-origin: left center;
  transition: transform .8s cubic-bezier(.19, 1, .22, 1), box-shadow .8s ease;
  text-align: left;
  box-shadow: 16px 18px 0 rgba(70, 56, 45, .18);
}

.fold-panel.open {
  transform: rotateY(-58deg) rotateZ(-1deg);
  box-shadow: 4px 10px 0 rgba(70, 56, 45, .18);
}

.fold-panel strong {
  display: block;
  margin-top: 90px;
  font: 400 clamp(52px, 7vw, 122px)/.94 var(--serif-display);
  letter-spacing: -.06em;
}

.fold-panel small {
  display: block;
  margin-top: 28px;
  font: 500 12px/1 var(--sans);
  color: var(--moss);
  text-transform: uppercase;
  letter-spacing: .18em;
}

.alias-copy {
  grid-column: 10 / 12;
  grid-row: 5 / 8;
}

.registration-mark {
  position: absolute;
  right: 7vw;
  top: 16vh;
  width: 92px;
  height: 92px;
  border: 1px solid var(--blue);
  border-radius: 50%;
  opacity: .55;
}

.registration-mark::before,
.registration-mark::after {
  content: "";
  position: absolute;
  background: var(--blue);
  opacity: .8;
}

.registration-mark::before { width: 138px; height: 1px; left: -23px; top: 45px; }
.registration-mark::after { width: 1px; height: 138px; left: 45px; top: -23px; }

.final-heading {
  grid-column: 2 / 8;
  grid-row: 2 / 4;
}

.empty-label-grid {
  grid-column: 3 / 12;
  grid-row: 4 / 7;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.empty-slot {
  min-height: 108px;
  background: rgba(244, 235, 221, .74);
  border: 1px solid rgba(43, 42, 37, .34);
  position: relative;
  box-shadow: inset 0 0 0 8px rgba(216, 194, 154, .22);
}

.empty-slot::before {
  content: "";
  position: absolute;
  left: 20px;
  right: 20px;
  top: 50%;
  height: 1px;
  background: rgba(43, 42, 37, .24);
}

.empty-slot.clay-line::before { background: var(--clay); }
.empty-slot.moss-line::before { background: var(--moss); }
.empty-slot.blue-line::before { background: var(--blue); }

.closing-copy {
  grid-column: 6 / 10;
  grid-row: 7;
  font-size: clamp(19px, 1.5vw, 25px);
  line-height: 1.45;
  margin: 0;
}

.stagger-item {
  opacity: 0;
  transform: translateY(18px) translateX(var(--sx, 0)) rotate(var(--sr, 0deg));
  transition: opacity .8s ease, transform .9s cubic-bezier(.19, 1, .22, 1), color .8s ease;
}

.spread.in-view .stagger-item {
  opacity: 1;
  transform: translateY(0) translateX(0) rotate(var(--final-rot, 0deg));
}

.spread.in-view .stagger-item:nth-child(2n) { transition-delay: .12s; }
.spread.in-view .stagger-item:nth-child(3n) { transition-delay: .24s; }
.spread.in-view .stagger-item:nth-child(4n) { transition-delay: .36s; }
.spread.in-view .file-coordinate { color: var(--blue); }

.torn-label { --final-rot: -2deg; }
.portrait-slice { --final-rot: 1.5deg; }
.tape-corner { --final-rot: -13deg; }
.stamp-circle { --final-rot: 8deg; }
.name-card:nth-child(1) { --final-rot: -1.4deg; }
.name-card:nth-child(2) { --final-rot: .8deg; }
.name-card:nth-child(3) { --final-rot: -2.1deg; }
.name-card:nth-child(4) { --final-rot: 1.2deg; }

@keyframes drawRule {
  to { transform: scaleX(1); }
}

@media (max-width: 900px) {
  body { cursor: auto; }
  a, button { cursor: pointer; }
  .cursor-mark { display: none; }
  .chapter-index { display: none; }
  .spread {
    display: block;
    min-height: auto;
    padding: 82px 24px;
  }
  .hero-title-wrap,
  .chapter-heading,
  .narrative-column,
  .label-collage,
  .card-stack,
  .fold-stage,
  .empty-label-grid,
  .closing-copy,
  .chapter-note,
  .side-caption {
    margin: 28px 0;
    max-width: none;
  }
  .file-coordinate { position: static; margin: 10px 0; }
  .drawing-rule { display: block; margin: 48px 0; }
  .label-collage { min-height: 480px; }
  .card-stack { min-height: 620px; }
  .name-card { width: 82vw; }
  .name-card:nth-child(n) { left: 0; }
  .fold-stage { min-height: 560px; }
  .fold-panel strong { margin-top: 70px; }
  .empty-label-grid { grid-template-columns: 1fr 1fr; }
}