:root {
  /* Design typography markers: Space Grotesk** 500/700 headers; IBM Plex Mono** 400/500 exhibit numbers. */
  --parchment: #F2D8B8;
  --cream: #FFF2D6;
  --leather: #3A1612;
  --brass: #C79A43;
  --wax: #8F2E22;
  --clay: #B95F3B;
  --sage: #7E8B62;
  --ink: #24110C;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--ink);
  color: var(--ink);
  font-family: "Libre Baskerville", Georgia, serif;
  overflow-x: hidden;
}

.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 20;
  opacity: .22;
  background-image:
    radial-gradient(circle at 12% 18%, rgba(255,242,214,.28) 0 1px, transparent 1px),
    radial-gradient(circle at 77% 61%, rgba(36,17,12,.25) 0 1px, transparent 1px),
    linear-gradient(45deg, transparent 48%, rgba(199,154,67,.12) 49%, transparent 51%);
  background-size: 13px 17px, 19px 23px, 31px 31px;
  mix-blend-mode: overlay;
}

.scroll-ribbon {
  position: fixed;
  top: 0;
  left: 0;
  width: 7px;
  height: 0;
  background: linear-gradient(var(--brass), var(--wax), var(--clay));
  z-index: 30;
  box-shadow: 0 0 20px rgba(199,154,67,.7);
}

.spread {
  position: relative;
  min-height: 100vh;
  padding: clamp(28px, 5vw, 72px);
  overflow: hidden;
  isolation: isolate;
}

.leather-scene {
  color: var(--cream);
  background:
    radial-gradient(circle at 50% 28%, rgba(199,154,67,.18), transparent 32%),
    radial-gradient(circle at 18% 76%, rgba(185,95,59,.42), transparent 34%),
    linear-gradient(135deg, #3A1612 0%, #24110C 48%, #B95F3B 140%);
}

.leather-scene::before {
  content: "";
  position: absolute;
  inset: 20px;
  border: 1px solid rgba(199,154,67,.48);
  border-radius: 26px;
  background-image:
    linear-gradient(45deg, rgba(255,242,214,.04) 25%, transparent 25%, transparent 75%, rgba(255,242,214,.035) 75%),
    linear-gradient(45deg, rgba(36,17,12,.18) 25%, transparent 25%, transparent 75%, rgba(36,17,12,.18) 75%);
  background-size: 24px 24px;
  box-shadow: inset 0 0 80px rgba(36,17,12,.75), 0 22px 80px rgba(0,0,0,.36);
  z-index: -1;
}

.parchment-scene {
  background:
    radial-gradient(circle at 78% 24%, rgba(199,154,67,.2), transparent 29%),
    linear-gradient(115deg, #F2D8B8 0%, #FFF2D6 58%, #F2D8B8 100%);
}

.parchment-scene::before {
  content: "";
  position: absolute;
  inset: 18px 28px;
  border: 1px solid rgba(36,17,12,.16);
  box-shadow: inset 0 0 60px rgba(185,95,59,.14), 0 18px 80px rgba(36,17,12,.26);
  pointer-events: none;
}

.brass-corner {
  position: absolute;
  width: 86px;
  height: 86px;
  border-color: var(--brass);
  opacity: .82;
}
.top-left { top: 30px; left: 30px; border-top: 7px solid; border-left: 7px solid; border-radius: 18px 0 0 0; }
.top-right { top: 30px; right: 30px; border-top: 7px solid; border-right: 7px solid; border-radius: 0 18px 0 0; }
.bottom-left { bottom: 30px; left: 30px; border-bottom: 7px solid; border-left: 7px solid; border-radius: 0 0 0 18px; }
.bottom-right { bottom: 30px; right: 30px; border-bottom: 7px solid; border-right: 7px solid; border-radius: 0 0 18px 0; }

.stitched-frame {
  position: absolute;
  inset: 42px;
  border: 2px dashed rgba(255,242,214,.27);
  border-radius: 22px;
  pointer-events: none;
}

.running-label, .chapter-tab, .ledger-code, .micro-ledger, .cover-clasp {
  font-family: "Space Grotesk", Arial, sans-serif;
  text-transform: uppercase;
  letter-spacing: .16em;
}

.running-label { margin: 5vh 0 0; color: var(--brass); font-size: clamp(.75rem, 1.1vw, 1rem); }

.kinetic-title {
  margin: 8vh 0 0;
  font-family: "Fraunces", Georgia, serif;
  font-size: clamp(4.3rem, 15vw, 14rem);
  font-weight: 900;
  line-height: .78;
  color: #F2D8B8;
  letter-spacing: -.08em;
  text-shadow: 0 2px 0 #24110C, 0 11px 28px rgba(0,0,0,.55), 0 -1px 0 rgba(255,242,214,.45);
  transform: translateY(30px) scale(.98);
}

.cover-subtitle {
  max-width: 720px;
  margin: 32px 0 0 auto;
  color: rgba(255,242,214,.84);
  font-size: clamp(1.05rem, 2vw, 1.55rem);
  line-height: 1.7;
}

.cover-clasp {
  position: absolute;
  right: 11vw;
  bottom: 15vh;
  color: var(--brass);
  border: 1px solid rgba(199,154,67,.55);
  border-radius: 999px;
  padding: 12px 22px;
  background: rgba(36,17,12,.34);
}

.guide-svg { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; z-index: 3; }
.draw-path { fill: none; stroke: var(--brass); stroke-width: 4; stroke-linecap: round; stroke-linejoin: round; filter: drop-shadow(0 3px 6px rgba(36,17,12,.35)); }
.brass-dot { fill: var(--brass); filter: drop-shadow(0 0 12px rgba(199,154,67,.7)); }
.latch-line { top: 44%; height: 42%; opacity: .96; }

.chapter-tab {
  position: absolute;
  top: 30px;
  left: 52px;
  padding: 12px 18px;
  background: var(--clay);
  color: var(--cream);
  border-radius: 0 0 12px 12px;
  box-shadow: 0 8px 24px rgba(36,17,12,.22);
  z-index: 5;
}
.right-tab { left: auto; right: 52px; background: var(--sage); }

.editorial-grid {
  display: grid;
  grid-template-columns: minmax(150px, .55fr) minmax(290px, 1.4fr) minmax(220px, .8fr);
  gap: clamp(22px, 4vw, 58px);
  align-items: center;
  min-height: 82vh;
}

.annotation-rail {
  border-left: 3px solid var(--brass);
  padding-left: 20px;
  transform: rotate(-1.8deg);
}

.ledger-code {
  display: inline-block;
  font-family: "IBM Plex Mono", monospace;
  color: var(--wax);
  letter-spacing: .08em;
  margin-bottom: 12px;
}

.chapter-title {
  font-family: "Fraunces", Georgia, serif;
  font-size: clamp(3rem, 8vw, 8.8rem);
  line-height: .88;
  margin: 0 0 28px;
  color: var(--leather);
  letter-spacing: -.055em;
  font-weight: 850;
}

.chapter-title.oversized { max-width: 980px; margin-top: 10vh; }

.report-copy { font-size: clamp(1rem, 1.45vw, 1.28rem); line-height: 1.9; max-width: 680px; }

.pull-quote {
  font-family: "Fraunces", Georgia, serif;
  font-weight: 800;
  color: var(--wax);
  font-size: clamp(1.7rem, 4.4vw, 4.5rem);
  line-height: .98;
  margin: 0;
  transform: rotate(2.4deg);
}

.artifact-field { position: absolute; inset: 0; pointer-events: none; }
.artifact {
  position: absolute;
  min-width: 150px;
  padding: 18px 20px;
  background: rgba(255,242,214,.88);
  border: 1px solid rgba(36,17,12,.18);
  box-shadow: 0 18px 35px rgba(36,17,12,.2);
  font-family: "Space Grotesk", Arial, sans-serif;
  color: var(--ink);
  transition: transform .25s ease-out;
}
.artifact b { display: block; font-family: "IBM Plex Mono", monospace; color: var(--wax); margin-top: 8px; }
.ticket { left: 13%; top: 67%; transform: rotate(-7deg); border-radius: 14px; }
.telegram { right: 12%; top: 18%; transform: rotate(5deg); }
.index { left: 43%; top: 23%; transform: rotate(-3deg); background: rgba(242,216,184,.92); }
.redaction { right: 25%; bottom: 13%; transform: rotate(3deg); }
.redaction::after { content: ""; position: absolute; left: 14px; right: 18px; top: 50%; height: 12px; background: var(--ink); animation: revealBar 5s ease-in-out infinite; }

.bundle-stage {
  position: relative;
  height: 48vh;
  margin-top: 30px;
}
.paper-slip, .bundle-report {
  position: absolute;
  font-family: "Space Grotesk", Arial, sans-serif;
  padding: 20px 28px;
  background: var(--cream);
  border: 1px solid rgba(36,17,12,.18);
  box-shadow: 0 20px 50px rgba(36,17,12,.22);
}
.slip-a { left: 9%; top: 16%; transform: rotate(-12deg); }
.slip-b { left: 31%; top: 48%; transform: rotate(8deg); }
.slip-c { right: 25%; top: 8%; transform: rotate(11deg); }
.slip-d { right: 12%; top: 52%; transform: rotate(-8deg); }
.drawn-cord { position: absolute; left: 18%; right: 17%; top: 45%; height: 4px; background: var(--wax); box-shadow: 0 0 0 5px rgba(143,46,34,.08); transform-origin: center; animation: cinch 4.5s ease-in-out infinite; }
.bundle-report { left: 50%; top: 50%; transform: translate(-50%, -50%) rotate(-1deg); font-family: "Fraunces", Georgia, serif; font-size: clamp(1.8rem, 4vw, 4rem); color: var(--leather); opacity: .96; }
.vellum-note { position: absolute; right: 7vw; bottom: 9vh; max-width: 360px; padding: 22px; background: rgba(255,242,214,.52); backdrop-filter: blur(3px); border: 1px solid rgba(199,154,67,.46); font-style: italic; }

.press-copy { max-width: 700px; margin-top: 11vh; }
.roller-machine { position: absolute; right: 7vw; top: 24vh; width: min(42vw, 570px); height: 390px; }
.roller { position: absolute; left: 12%; right: 9%; top: 29%; height: 82px; border-radius: 999px; background: linear-gradient(90deg, #8F2E22, #C79A43, #FFF2D6, #C79A43, #8F2E22); box-shadow: inset 0 -12px 22px rgba(36,17,12,.35), 0 18px 44px rgba(36,17,12,.24); animation: roll 2.8s linear infinite; }
.incoming-stack i { position: absolute; left: 0; top: calc(58% + var(--n, 0px)); width: 235px; height: 54px; background: var(--cream); border: 1px solid rgba(36,17,12,.2); animation: feed 5s ease-in-out infinite; }
.incoming-stack i:nth-child(1) { --n: 0px; }
.incoming-stack i:nth-child(2) { --n: 18px; animation-delay: .2s; }
.incoming-stack i:nth-child(3) { --n: 36px; animation-delay: .4s; }
.incoming-stack i:nth-child(4) { --n: 54px; animation-delay: .6s; }
.pressed-folio { position: absolute; right: 2%; bottom: 4%; width: 210px; height: 250px; display: grid; place-items: center; text-align: center; background: linear-gradient(#FFF2D6, #F2D8B8); border: 2px solid var(--brass); font-family: "IBM Plex Mono", monospace; color: var(--wax); letter-spacing: .12em; box-shadow: 0 20px 45px rgba(36,17,12,.25); }
.micro-ledger { position: absolute; left: 7vw; bottom: 11vh; font-family: "IBM Plex Mono", monospace; color: var(--sage); }

.proof-spread { display: grid; place-items: center; }
.final-folio { position: relative; width: min(760px, 86vw); min-height: 560px; padding: clamp(34px, 6vw, 72px); background: linear-gradient(135deg, #FFF2D6, #F2D8B8); color: var(--ink); border: 2px solid var(--brass); box-shadow: 0 28px 90px rgba(0,0,0,.42); z-index: 4; }
.ribbon-bookmark { position: absolute; top: -2px; right: 64px; width: 34px; height: 160px; background: var(--wax); clip-path: polygon(0 0, 100% 0, 100% 100%, 50% 82%, 0 100%); }
.wax-seal { position: absolute; right: 54px; bottom: 42px; width: 118px; height: 118px; border-radius: 50%; display: grid; place-items: center; background: radial-gradient(circle at 35% 30%, #B95F3B, #8F2E22 62%, #3A1612); color: var(--cream); font-family: "Fraunces", Georgia, serif; font-size: 2.3rem; box-shadow: 0 12px 30px rgba(36,17,12,.35); transform: scale(.8); }
.seal-line { inset: auto; width: min(640px, 80vw); height: min(640px, 80vw); left: 50%; top: 50%; transform: translate(-50%, -50%); opacity: .75; }

[data-kinetic] .word { display: inline-block; opacity: 0; transform: translateY(.42em) rotate(-1.5deg); transition: opacity .55s ease, transform .7s cubic-bezier(.2, .9, .2, 1), letter-spacing .7s ease; }
.in-view[data-kinetic] .word { opacity: 1; transform: translateY(0) rotate(0); letter-spacing: -.015em; }

.spread.in-view .paper-slip { animation: gather 5s ease-in-out infinite; }
.spread.in-view .wax-seal { animation: bloom 1.1s cubic-bezier(.18, 1.25, .32, 1) forwards; }

@keyframes revealBar { 0%, 35% { transform: translateX(0) scaleX(1); } 58%, 100% { transform: translateX(72%) scaleX(.2); } }
@keyframes cinch { 0%, 100% { transform: scaleX(.55); } 50% { transform: scaleX(1); } }
@keyframes roll { to { filter: hue-rotate(360deg); } }
@keyframes feed { 0%, 100% { transform: translateX(0) rotate(-2deg); } 50% { transform: translateX(170px) rotate(0); } }
@keyframes gather { 0%, 100% { margin: 0; } 50% { margin-left: 10%; margin-top: 2%; } }
@keyframes bloom { from { transform: scale(.45) rotate(-18deg); opacity: .25; } to { transform: scale(1) rotate(4deg); opacity: 1; } }

@media (max-width: 820px) {
  .spread { padding: 34px 24px; }
  .editorial-grid { grid-template-columns: 1fr; align-content: center; }
  .artifact { min-width: 118px; padding: 12px 14px; font-size: .78rem; }
  .roller-machine { position: relative; right: auto; top: auto; width: 100%; margin-top: 24px; }
  .chapter-title { font-size: clamp(2.7rem, 15vw, 5rem); }
  .pull-quote { font-size: 2rem; }
  .vellum-note, .micro-ledger { position: relative; right: auto; bottom: auto; left: auto; margin-top: 20px; }
}