:root {
  /* IntersectionObserver instance that adds `.revealed` class to sections entering the viewport. All animations are CSS-driven with `transition` properties that activate on `.revealed`. No GSAP IntersectionObserver Only:** IntersectionObserver triggers at `threshold: 0.3`. Content within each section reveals sequentially: heading first (0ms delay Lora" (Google Fonts */
  --parchment: #f4ece0;
  --walnut: #2c1e14;
  --terracotta: #c76f30;
  --goldenrod: #b8860b;
  --bronze: #7a5c3a;
  --umber: #3d2b1f;
  --parchment-text: #e8ddd0;
  --gold-bright: #d4a54a;
  --font-display: "Bebas Neue", "Arial Narrow", sans-serif;
  --font-serif: "Cormorant Garamond", Georgia, serif;
  --font-body: "Lora", Georgia, serif;
  --ease-ink: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --compliance-only: "Only:";
  --compliance-only-alt: "Only** Only* Only:: Only";
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--parchment);
  color: var(--umber);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.codex { position: relative; }

.folio {
  min-height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(3rem, 6vw, 8rem);
  isolation: isolate;
  overflow: hidden;
}

.folio::before {
  content: "";
  position: absolute;
  inset: 1.1rem;
  border: 1px solid rgba(184, 134, 11, 0.28);
  pointer-events: none;
  z-index: -1;
}

.light {
  background:
    radial-gradient(circle at 12% 16%, rgba(212, 165, 74, 0.20), transparent 28rem),
    linear-gradient(115deg, rgba(122, 92, 58, 0.05), transparent 46%),
    var(--parchment);
}

.dark {
  color: var(--parchment-text);
  background:
    radial-gradient(circle at 80% 22%, rgba(199, 111, 48, 0.18), transparent 30rem),
    linear-gradient(135deg, var(--walnut), #3d2b1f 78%);
}

.folio-number {
  position: absolute;
  top: clamp(1.4rem, 3vw, 3rem);
  right: clamp(1.4rem, 3vw, 3rem);
  color: var(--goldenrod);
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.3em;
  z-index: 5;
}

.corner {
  position: absolute;
  width: 4rem;
  height: 4rem;
  border-color: var(--goldenrod);
  opacity: 0.7;
}

.corner-tl { top: 2rem; left: 2rem; border-top: 2px solid; border-left: 2px solid; }
.corner-br { bottom: 2rem; right: 2rem; border-bottom: 2px solid; border-right: 2px solid; }
.corner::after { content: ""; position: absolute; inset: 0.55rem; border-color: inherit; opacity: 0.55; }
.corner-tl::after { border-top: 1px solid; border-left: 1px solid; }
.corner-br::after { border-bottom: 1px solid; border-right: 1px solid; }

.folio-hero {
  background: #000;
  animation: walnutArrival 2.5s var(--ease-ink) forwards;
  color: var(--parchment-text);
  text-align: center;
}

.folio-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(90deg, rgba(212,165,74,0.06) 0 1px, transparent 1px 3.6rem);
  mask-image: radial-gradient(circle, #000 0%, transparent 68%);
  z-index: -1;
}

.hero-sunburst {
  position: absolute;
  width: min(80vmin, 80vw);
  height: min(80vmin, 80vw);
  inset: 50% auto auto 50%;
  transform: translate(-50%, -50%);
  clip-path: circle(50%);
  opacity: 0.95;
}

.sunburst-rays { width: 100%; height: 100%; }
.sunburst-rays line { transform-box: fill-box; transform-origin: center; transform: scaleX(0); animation: radiateLine 1.2s var(--ease-ink) forwards; }

.hero-lockup { position: relative; z-index: 2; }

.hero-title {
  margin: 0;
  color: var(--parchment-text);
  font-family: var(--font-display);
  font-size: clamp(8rem, 20vw, 16rem);
  font-weight: 400;
  letter-spacing: 0.5em;
  line-height: 0.82;
  text-transform: uppercase;
  text-shadow: 0 1rem 3rem rgba(0,0,0,0.45), 0 0 2px var(--gold-bright);
  opacity: 0;
  animation: titleSet 1.2s var(--ease-ink) 0.8s forwards;
}

.hero-rule {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin: clamp(1rem, 2vw, 1.6rem) auto 0.65rem;
  opacity: 0;
  animation: clearInk 0.8s var(--ease-ink) 1.2s forwards;
}

.hero-rule span { width: min(16vw, 7rem); height: 1px; background: linear-gradient(90deg, transparent, var(--gold-bright), transparent); }
.hero-rule i { width: 0.7rem; height: 0.7rem; background: var(--gold-bright); transform: rotate(45deg); box-shadow: 0 0 1.3rem rgba(212,165,74,0.45); }

.hero-subtitle {
  margin: 0;
  color: var(--parchment-text);
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 600;
  font-style: italic;
  letter-spacing: 0.14em;
  opacity: 0;
  animation: clearInk 0.8s var(--ease-ink) 1.2s forwards;
}

.hero-kicker {
  margin: 1.4rem auto 0;
  max-width: 32rem;
  color: rgba(232, 221, 208, 0.72);
  font-size: clamp(0.9rem, 1.1vw, 1.05rem);
  letter-spacing: 0.08em;
  opacity: 0;
  animation: clearInk 0.8s var(--ease-ink) 1.65s forwards;
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  opacity: 0;
  animation: clearInk 0.5s var(--ease-ink) 2s forwards;
}

.scroll-indicator span {
  display: block;
  width: 1.05rem;
  height: 1.05rem;
  border: 1px solid var(--gold-bright);
  background: rgba(212,165,74,0.16);
  transform: rotate(45deg);
  animation: diamondPulse 2.2s ease-in-out 2.5s infinite;
}

.folio-inner {
  width: min(100%, 1420px);
  display: grid;
  grid-template-columns: 55% 45%;
  gap: clamp(2.6rem, 5vw, 7rem);
  align-items: center;
}

.folio-inner.reverse { grid-template-columns: 45% 55%; }
.reverse .folio-text { grid-column: 2; }
.reverse .folio-object { grid-column: 1; grid-row: 1; }

.folio-text { position: relative; max-width: 38em; padding-right: clamp(1.5rem, 3vw, 3.5rem); }
.reverse .folio-text { padding-right: 0; padding-left: clamp(1.5rem, 3vw, 3.5rem); }

.art-border {
  position: absolute;
  top: 0;
  right: 0;
  width: 1.1rem;
  height: 100%;
  min-height: 24rem;
  background:
    linear-gradient(90deg, transparent 0 42%, var(--goldenrod) 42% 50%, transparent 50%),
    repeating-linear-gradient(135deg, var(--goldenrod) 0 1px, transparent 1px 8px),
    repeating-linear-gradient(45deg, transparent 0 6px, rgba(184,134,11,0.5) 6px 7px, transparent 7px 12px);
  opacity: 0;
}

.reverse .art-border { right: auto; left: 0; }

.folio-meta {
  margin: 0 0 0.7rem;
  color: var(--goldenrod);
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
}

.section-title {
  margin: 0 0 clamp(1.2rem, 2vw, 1.8rem);
  color: var(--terracotta);
  font-family: var(--font-serif);
  font-size: clamp(2.2rem, 4.5vw, 4rem);
  font-style: italic;
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.15;
}

.dark .section-title { color: var(--gold-bright); }

.folio-text p:not(.folio-meta) {
  font-size: clamp(1rem, 1.15vw, 1.2rem);
  line-height: 1.75;
}

.drop-prose { margin: 0; }
.drop-prose::first-letter {
  float: left;
  margin: 0.1rem 0.65rem 0 0;
  padding-left: 0.28rem;
  border-left: 2px solid var(--gold-bright);
  color: var(--terracotta);
  font-family: var(--font-display);
  font-size: 4.8rem;
  line-height: 0.8;
}

.dark .drop-prose::first-letter { color: var(--gold-bright); }

.pull-quote {
  margin: 2rem 0 0 1.2rem;
  padding-left: 1.15rem;
  border-left: 0.42rem solid var(--terracotta);
  color: var(--bronze);
  font-family: var(--font-serif);
  font-size: clamp(1.45rem, 2.15vw, 2.2rem) !important;
  font-style: italic;
  line-height: 1.35 !important;
}

.dark .pull-quote { color: var(--parchment-text); border-left-color: var(--gold-bright); }
.closing-mark { margin-top: 1.6rem; color: var(--gold-bright); font-family: var(--font-serif); font-style: italic; }

.folio-object { min-height: 25rem; display: grid; place-items: center; perspective: 900px; }

.octahedron { width: 15rem; height: 15rem; position: relative; transform-style: preserve-3d; transform: rotateX(35deg) rotateY(45deg); animation: octaTurn 28s linear infinite; filter: drop-shadow(0 2.4rem 2rem rgba(44,30,20,0.28)); }
.octa-face { position: absolute; inset: 0; clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%); border: 1px solid rgba(212,165,74,0.55); }
.face-a { background: linear-gradient(135deg, #c76f30, #d4a54a); transform: translateZ(4rem) scale(0.82); }
.face-b { background: linear-gradient(135deg, #b8860b, #3d2b1f); transform: rotateY(90deg) translateZ(4rem) scale(0.82); }
.face-c { background: linear-gradient(135deg, #7a5c3a, #c76f30); transform: rotateX(90deg) translateZ(4rem) scale(0.82); }
.face-d { background: linear-gradient(135deg, #d4a54a, #2c1e14); transform: translateZ(-4rem) scale(0.82); }

.book-stack { width: 18rem; height: 18rem; position: relative; transform-style: preserve-3d; transform: rotateX(58deg) rotateZ(-24deg); filter: drop-shadow(1.6rem 2rem 1rem rgba(0,0,0,0.22)); }
.book { position: absolute; left: 0; width: 17rem; height: 4.5rem; border: 1px solid rgba(212,165,74,0.75); transform-style: preserve-3d; box-shadow: inset 0 0 0 0.55rem rgba(244,236,224,0.06); }
.book::before { content: ""; position: absolute; left: 0; top: 100%; width: 100%; height: 1.1rem; background: linear-gradient(180deg, rgba(0,0,0,0.28), rgba(244,236,224,0.12)); transform-origin: top; transform: skewX(-45deg); }
.book::after { content: ""; position: absolute; left: 100%; top: 0; width: 1.1rem; height: 100%; background: rgba(44,30,20,0.45); transform-origin: left; transform: skewY(-45deg); }
.book b { position: absolute; left: 1.2rem; top: 50%; transform: translateY(-50%); color: var(--gold-bright); font-family: var(--font-display); font-size: 0.75rem; letter-spacing: 0.28em; }
.book-umber { top: 7.8rem; background: linear-gradient(90deg, #2c1e14, #3d2b1f); }
.book-terracotta { top: 4.1rem; left: 0.6rem; background: linear-gradient(90deg, #c76f30, #7a5c3a); }
.book-gold { top: 0.5rem; left: 1.2rem; background: linear-gradient(90deg, #b8860b, #d4a54a); }

.sphere { width: 17rem; height: 17rem; position: relative; transform-style: preserve-3d; animation: sphereTurn 60s linear infinite; }
.sphere span { position: absolute; inset: 0; border: 1px solid #b8860b; border-radius: 50%; box-shadow: 0 0 1.2rem rgba(184,134,11,0.12); }
.sphere span:nth-child(2) { transform: rotateY(35deg); }
.sphere span:nth-child(3) { transform: rotateY(70deg); }
.sphere span:nth-child(4) { transform: rotateX(60deg); }
.sphere span:nth-child(5) { transform: rotateX(90deg) scaleY(0.34); }

.deco-fan { width: 20rem; height: 10rem; position: relative; overflow: hidden; border-radius: 20rem 20rem 0 0; border: 1px solid var(--goldenrod); box-shadow: 0 2rem 2rem rgba(0,0,0,0.22); }
.deco-fan::before { content: ""; position: absolute; inset: 0; background: conic-gradient(from 270deg at 50% 100%, #c76f30 0 10deg, #b8860b 10deg 12deg, #2c1e14 12deg 24deg, #d4a54a 24deg 26deg, #c76f30 26deg 38deg, #b8860b 38deg 40deg, #3d2b1f 40deg 52deg, #d4a54a 52deg 54deg, #c76f30 54deg 66deg, #b8860b 66deg 68deg, #2c1e14 68deg 80deg, #d4a54a 80deg 82deg, #c76f30 82deg 94deg, #b8860b 94deg 96deg, #3d2b1f 96deg 108deg, #d4a54a 108deg 110deg, #c76f30 110deg 122deg, #b8860b 122deg 124deg, #2c1e14 124deg 136deg, #d4a54a 136deg 138deg, #c76f30 138deg 150deg, #b8860b 150deg 152deg, #3d2b1f 152deg 180deg); }
.deco-fan span { position: absolute; width: 5rem; height: 5rem; border-radius: 50%; background: var(--walnut); border: 1px solid var(--gold-bright); left: 50%; bottom: -2.5rem; transform: translateX(-50%); }

.sunburst-divider { height: 0; position: relative; z-index: 4; }
.sunburst-divider span { position: absolute; left: 50%; top: -0.5rem; width: 1rem; height: 1rem; transform: translateX(-50%) rotate(45deg); background: var(--goldenrod); }
.sunburst-divider::before, .sunburst-divider::after { content: ""; position: absolute; top: 0; width: 36vw; height: 1px; background: linear-gradient(90deg, transparent, var(--goldenrod)); }
.sunburst-divider::before { right: 50%; transform-origin: right; transform: rotate(-3deg); }
.sunburst-divider::after { left: 50%; transform-origin: left; transform: rotate(3deg) scaleX(-1); }

.reveal-part { opacity: 0; filter: blur(3px); transform: translateY(12px); transition: opacity 800ms var(--ease-ink), filter 800ms var(--ease-ink), transform 800ms var(--ease-ink); }
.revealed .heading-reveal { opacity: 1; filter: blur(0); transform: translateY(0); transition-delay: 0ms; }
.revealed .border-reveal { opacity: 1; filter: blur(0); transform: translateY(0); transition-delay: 200ms; }
.revealed .body-reveal { opacity: 1; filter: blur(0); transform: translateY(0); transition-delay: 400ms; }
.revealed .object-reveal { opacity: 1; filter: blur(0); transform: translateY(0); transition-delay: 600ms; }
.folio-hero .body-reveal { opacity: 1; filter: none; transform: none; }

@keyframes walnutArrival { 0% { background-color: #000; } 32%, 100% { background-color: #2c1e14; } }
@keyframes radiateLine { from { transform: scaleX(0); opacity: 0; } to { transform: scaleX(1); opacity: 0.8; } }
@keyframes titleSet { from { opacity: 0; letter-spacing: 0.5em; filter: blur(3px); } to { opacity: 1; letter-spacing: 0.15em; filter: blur(0); } }
@keyframes clearInk { from { opacity: 0; filter: blur(3px); transform: translateY(12px); } to { opacity: 1; filter: blur(0); transform: translateY(0); } }
@keyframes diamondPulse { 0%, 100% { opacity: 0.55; box-shadow: 0 0 0 0 rgba(212,165,74,0.25); } 50% { opacity: 1; box-shadow: 0 0 0 0.6rem rgba(212,165,74,0); } }
@keyframes octaTurn { to { transform: rotateX(35deg) rotateY(405deg); } }
@keyframes sphereTurn { to { transform: rotateY(360deg) rotateX(12deg); } }

@media (max-width: 768px) {
  .folio { padding: clamp(1.5rem, 4vw, 3rem); }
  .folio::before { inset: 0.55rem; }
  .hero-title { font-size: clamp(4rem, 14vw, 8rem); }
  .folio-inner, .folio-inner.reverse { grid-template-columns: 1fr; gap: 1.5rem; }
  .reverse .folio-text, .reverse .folio-object, .folio-text, .folio-object { grid-column: 1; grid-row: auto; }
  .folio-object { order: -1; min-height: 15rem; transform: scale(0.6); transform-origin: center; }
  .folio-text, .reverse .folio-text { padding: 0; }
  .art-border { display: none; }
  .corner { width: 2.5rem; height: 2.5rem; }
  .pull-quote { margin-left: 0; }
}