:root {
  /* Compliance font tokens from design parser: Mono* Mono** readable short labels: timestamps */
  --tape-black: #080807;
  --bone-signal: #F2EBDD;
  --fog-gray: #B9B6AD;
  --wet-charcoal: #2B2A27;
  --lichen-shadow: #5F6658;
  --white-highlight: #FFF9EC;
  --oxidized-film: #8A826F;
  --display: 'Major Mono Display', 'Courier New', monospace;
  --interface: 'Space Mono', 'Courier New', monospace;
  --body: 'IBM Plex Mono', 'Courier New', monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background: var(--tape-black);
  color: var(--fog-gray);
  overflow-x: hidden;
}

body {
  font-family: var(--body);
}

.field-stage {
  position: relative;
  min-height: 225vh;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 36%, rgba(242, 235, 221, .18), transparent 18rem),
    radial-gradient(circle at 48% 70%, rgba(95, 102, 88, .2), transparent 22rem),
    linear-gradient(180deg, #080807 0%, #11100f 46%, #080807 100%);
  isolation: isolate;
}

.spotlight {
  position: fixed;
  inset: -15vh -15vw;
  z-index: 0;
  background:
    conic-gradient(from 200deg at 50% 12%, transparent, rgba(255, 249, 236, .11), transparent 32%),
    radial-gradient(ellipse at center, rgba(242, 235, 221, .11), transparent 52%);
  filter: blur(1px);
  opacity: .82;
  pointer-events: none;
}

.vignette,
.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
}

.vignette {
  z-index: 20;
  box-shadow: inset 0 0 9rem 3rem #080807;
}

.grain {
  z-index: 30;
  opacity: .46;
  mix-blend-mode: screen;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(255, 249, 236, .8) 0 1px, transparent 1px),
    radial-gradient(circle at 70% 62%, rgba(185, 182, 173, .55) 0 1px, transparent 1px),
    repeating-linear-gradient(0deg, rgba(255, 249, 236, .06) 0 1px, transparent 1px 4px),
    repeating-linear-gradient(90deg, rgba(8, 8, 7, .4) 0 2px, transparent 2px 7px);
  background-size: 39px 41px, 53px 47px, 100% 5px, 11px 100%;
  animation: grainDrift .38s steps(2) infinite;
}

.hero-chapter {
  position: relative;
  z-index: 3;
  min-height: 100vh;
  display: grid;
  place-items: center;
  perspective: 900px;
  transform-origin: center;
  animation: cameraPull 2.8s cubic-bezier(.12, .84, .18, 1) both;
}

.camcorder-frame {
  position: fixed;
  top: 1.2rem;
  left: 1.2rem;
  right: 1.2rem;
  z-index: 12;
  display: flex;
  justify-content: space-between;
  font-family: var(--interface);
  font-size: clamp(.68rem, 1.1vw, .9rem);
  letter-spacing: .14em;
  color: var(--fog-gray);
  text-transform: uppercase;
}

.camcorder-frame::before,
.camcorder-frame::after {
  content: '';
  position: absolute;
  top: 1.6rem;
  width: 4.5rem;
  height: 3.2rem;
  border: 1px solid rgba(242, 235, 221, .45);
}
.camcorder-frame::before { left: 0; border-right: 0; border-bottom: 0; }
.camcorder-frame::after { right: 0; border-left: 0; border-bottom: 0; }

.juggle-axis {
  position: relative;
  width: min(94vw, 1180px);
  height: min(76vh, 720px);
  transform-style: preserve-3d;
  transition: transform .18s ease-out;
}

.orbit-lane {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 70%;
  height: 58%;
  border: 1px dashed rgba(185, 182, 173, .2);
  border-radius: 50%;
  transform: translate(-50%, -50%) rotate(-11deg);
  filter: blur(.2px);
}
.lane-front { width: 85%; height: 72%; transform: translate(-50%, -50%) rotate(16deg); opacity: .48; }
.lane-back { opacity: .28; }

.word-orb {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  transform-style: preserve-3d;
  animation: wordFloat 7s ease-in-out infinite;
}

.wordmark {
  position: relative;
  font-family: var(--display);
  font-size: clamp(4.5rem, 15.6vw, 15rem);
  line-height: .82;
  letter-spacing: -.18em;
  color: var(--bone-signal);
  text-transform: lowercase;
  filter: drop-shadow(0 2rem 1.2rem rgba(8, 8, 7, .85));
  text-shadow:
    .02em .02em 0 #FFF9EC,
    .045em .055em 0 #B9B6AD,
    .08em .1em 0 #8A826F,
    .13em .16em 0 #2B2A27,
    -.035em -.045em .06em rgba(255, 249, 236, .9),
    0 .22em .4em rgba(8, 8, 7, .85);
}

.wordmark::before,
.wordmark::after {
  content: attr(data-text);
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.wordmark::before {
  color: transparent;
  -webkit-text-stroke: .035em rgba(255, 249, 236, .34);
  transform: translate3d(-.025em, -.045em, 18px);
  filter: blur(.02em);
}
.wordmark::after {
  color: rgba(95, 102, 88, .16);
  text-shadow: none;
  transform: translate3d(.17em, .2em, -35px);
  filter: blur(.09em);
}

.letter-detail {
  position: absolute;
  width: clamp(2.5rem, 7vw, 7rem);
  height: clamp(.8rem, 1.9vw, 1.8rem);
  border-radius: 999px;
  background: radial-gradient(circle at 25% 25%, #FFF9EC, #B9B6AD 35%, #8A826F 68%, #2B2A27 100%);
  box-shadow: inset -.5rem -.45rem .8rem rgba(8, 8, 7, .54), inset .25rem .2rem .35rem rgba(255, 249, 236, .65);
  opacity: .72;
}
.detail-one { left: 21%; top: 39%; transform: rotate(-18deg); }
.detail-two { right: 26%; top: 47%; transform: rotate(9deg) scale(.65); }
.detail-three { left: 47%; bottom: 30%; transform: rotate(27deg) scale(.45); background: linear-gradient(90deg, #5F6658, #B9B6AD, #F2EBDD); }

.prop {
  position: absolute;
  z-index: 6;
  width: clamp(4rem, 9vw, 8.5rem);
  height: clamp(4rem, 9vw, 8.5rem);
  transform-style: preserve-3d;
  animation: orbitA 12s ease-in-out infinite;
}
.prop span {
  position: absolute;
  inset: 13%;
  display: block;
  background: radial-gradient(circle at 28% 22%, #FFF9EC 0 8%, #F2EBDD 22%, #B9B6AD 58%, #2B2A27 100%);
  border: 1px solid rgba(255, 249, 236, .38);
  box-shadow: inset -.9rem -.8rem 1.2rem rgba(8, 8, 7, .55), inset .35rem .25rem .6rem rgba(255, 249, 236, .62), 0 1.3rem 1.7rem rgba(8, 8, 7, .75);
}
.prop em {
  position: absolute;
  left: 50%;
  top: 92%;
  transform: translateX(-50%);
  white-space: nowrap;
  font-family: var(--interface);
  font-size: .62rem;
  font-style: normal;
  letter-spacing: .08em;
  color: var(--fog-gray);
  background: rgba(43, 42, 39, .76);
  border: 1px solid rgba(185, 182, 173, .25);
  border-radius: 999px;
  padding: .25rem .55rem;
}
.prop-acorn { left: 8%; top: 57%; animation-name: orbitAcorn; }
.prop-acorn span { border-radius: 48% 48% 54% 54%; }
.prop-acorn span::before { content: ''; position: absolute; left: 18%; right: 18%; top: -17%; height: 28%; border-radius: 60% 60% 20% 20%; background: linear-gradient(135deg, #8A826F, #2B2A27); }
.prop-leaf { right: 9%; top: 15%; animation-name: orbitLeaf; animation-duration: 14s; }
.prop-leaf span { border-radius: 80% 12% 80% 20%; transform: rotate(35deg); background: radial-gradient(circle at 20% 20%, #FFF9EC, #B9B6AD 40%, #5F6658 76%, #2B2A27); }
.prop-mushroom { left: 18%; top: 17%; animation-name: orbitMushroom; animation-duration: 15s; }
.prop-mushroom span { border-radius: 55% 55% 38% 38%; }
.prop-mushroom span::after { content: ''; position: absolute; left: 35%; top: 50%; width: 30%; height: 48%; border-radius: 999px; background: linear-gradient(#B9B6AD, #2B2A27); }
.prop-stone { right: 16%; bottom: 18%; animation-name: orbitStone; animation-duration: 13s; }
.prop-stone span { border-radius: 44% 58% 50% 45%; }
.prop-pod { left: 47%; top: 5%; animation-name: orbitPod; animation-duration: 16s; }
.prop-pod span { border-radius: 999px; transform: rotate(-24deg) scaleX(.62); }
.prop-fern { left: 49%; bottom: 5%; animation-name: orbitFern; animation-duration: 11s; }
.prop-fern span { border-radius: 999px; transform: rotate(72deg) scaleX(.28); background: linear-gradient(90deg, #2B2A27, #5F6658, #F2EBDD, #8A826F); }

.field-note {
  position: absolute;
  left: clamp(1rem, 5vw, 5rem);
  bottom: clamp(2rem, 7vh, 5.5rem);
  z-index: 10;
  max-width: 28rem;
  padding: 1rem 1.2rem;
  border: 1px solid rgba(185, 182, 173, .28);
  border-radius: 1.4rem;
  color: var(--fog-gray);
  background: linear-gradient(135deg, rgba(43, 42, 39, .78), rgba(8, 8, 7, .42));
  box-shadow: inset .3rem .3rem 1rem rgba(255, 249, 236, .05), 0 1.5rem 2rem rgba(8, 8, 7, .55);
}
.note-index, .chapter-card span, .diorama-text span {
  font-family: var(--interface);
  color: var(--white-highlight);
  font-size: .72rem;
  letter-spacing: .16em;
}
.field-note p { margin: .55rem 0 0; line-height: 1.55; font-size: .9rem; }

.chapter-strip {
  position: relative;
  z-index: 4;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
  width: min(92vw, 1180px);
  margin: -6vh auto 20vh;
}
.chapter-card {
  min-height: 13rem;
  padding: 1rem;
  border: 1px solid rgba(185, 182, 173, .22);
  border-radius: 3rem;
  background: radial-gradient(circle at 30% 15%, rgba(255, 249, 236, .13), rgba(43, 42, 39, .72) 50%, rgba(8, 8, 7, .58));
  cursor: pointer;
  transform: translateY(0) scale(1);
  transition: transform .45s cubic-bezier(.2, 1, .2, 1), border-color .45s, background .45s;
}
.chapter-card.active,
.chapter-card:hover {
  transform: translateY(-1.2rem) scale(1.03);
  border-color: rgba(242, 235, 221, .55);
  background: radial-gradient(circle at 28% 20%, rgba(255, 249, 236, .22), rgba(95, 102, 88, .28) 43%, rgba(8, 8, 7, .68));
}
.chapter-card p { margin: 1.6rem 0 0; color: var(--fog-gray); line-height: 1.55; font-size: .82rem; }

.diorama {
  position: relative;
  z-index: 3;
  min-height: 78vh;
  display: grid;
  place-items: center;
  padding: 8rem 1.2rem 14rem;
}
.diorama-text {
  width: min(90vw, 42rem);
  text-align: center;
  transform: translateY(var(--diorama-shift, 0));
}
.diorama-text h2 {
  margin: 1rem 0;
  font-family: var(--display);
  font-size: clamp(2rem, 6vw, 5.4rem);
  line-height: .95;
  color: var(--bone-signal);
  letter-spacing: -.12em;
  text-shadow: .06em .08em 0 #2B2A27, -.025em -.035em .03em #FFF9EC;
}
.diorama-text p { margin: 0 auto; max-width: 35rem; line-height: 1.8; }
.diorama-object { position: absolute; border-radius: 50%; filter: blur(.2px); }
.big-acorn { width: 24rem; height: 20rem; left: -6rem; top: 8rem; background: radial-gradient(circle at 32% 22%, #FFF9EC, #8A826F 44%, #2B2A27); opacity: .38; }
.soft-leaf { width: 18rem; height: 8rem; right: -4rem; bottom: 17rem; border-radius: 100% 10% 100% 10%; background: linear-gradient(135deg, #5F6658, #B9B6AD, #080807); opacity: .32; transform: rotate(-28deg); }

.canopy {
  position: fixed;
  top: -5rem;
  z-index: 2;
  width: 34rem;
  height: 18rem;
  opacity: .45;
  border-radius: 45%;
  filter: blur(.4px);
  pointer-events: none;
}
.canopy-left { left: -11rem; background: repeating-radial-gradient(ellipse at 70% 40%, transparent 0 1.4rem, rgba(185, 182, 173, .13) 1.5rem 1.75rem); transform: rotate(24deg); }
.canopy-right { right: -12rem; background: repeating-radial-gradient(ellipse at 20% 40%, transparent 0 1.25rem, rgba(95, 102, 88, .18) 1.35rem 1.62rem); transform: rotate(-20deg); }

.ground-plane {
  position: fixed;
  left: 0;
  right: 0;
  bottom: -3rem;
  z-index: 1;
  height: 22vh;
  background: radial-gradient(ellipse at 50% 0, rgba(242, 235, 221, .15), transparent 56%);
  pointer-events: none;
}
.ground-plane span {
  position: absolute;
  bottom: 2rem;
  width: 12vw;
  height: 4vw;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 20%, #B9B6AD, #2B2A27 58%, #080807);
  opacity: .55;
}
.ground-plane span:nth-child(1) { left: 4%; transform: scale(.7); }
.ground-plane span:nth-child(2) { left: 23%; bottom: 3.5rem; transform: scale(1.2); }
.ground-plane span:nth-child(3) { left: 48%; transform: scale(.82); }
.ground-plane span:nth-child(4) { right: 18%; bottom: 3rem; transform: scale(1.05); }
.ground-plane span:nth-child(5) { right: 3%; transform: scale(.62); }

.tracking-bar {
  position: fixed;
  left: 0;
  right: 0;
  top: 35%;
  z-index: 25;
  height: .55rem;
  opacity: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 249, 236, .18), rgba(95, 102, 88, .14), transparent);
  pointer-events: none;
  animation: tapeBar 8s steps(1) infinite;
}

body.focus-canopy .juggle-axis { transform: rotateX(10deg) translateY(8vh) scale(.82); }
body.focus-archive .juggle-axis { transform: rotateY(-12deg) translateX(-6vw) scale(1.08); }
body.focus-catch .juggle-axis { transform: rotateX(-6deg) translateY(-3vh) scale(.94); }
body.focus-canopy .canopy { opacity: .82; }
body.focus-archive .prop em { color: var(--white-highlight); border-color: rgba(242, 235, 221, .65); }
body.focus-catch .word-orb { animation-duration: 10s; }

@keyframes cameraPull {
  0% { transform: scale(3.9) translate3d(28vw, 7vh, 0); filter: blur(3px); }
  55% { filter: blur(.5px); }
  100% { transform: scale(1) translate3d(0, 0, 0); filter: blur(0); }
}
@keyframes wordFloat { 0%,100% { transform: translateY(0) rotateX(0deg); } 50% { transform: translateY(-1.1rem) rotateX(4deg); } }
@keyframes orbitAcorn { 0%,100% { transform: translate3d(0, 0, 90px) scale(1.18); filter: blur(.5px); } 50% { transform: translate3d(36vw, -36vh, -150px) scale(.62); filter: blur(1.4px); } }
@keyframes orbitLeaf { 0%,100% { transform: translate3d(0, 0, -120px) scale(.65); } 50% { transform: translate3d(-42vw, 48vh, 120px) scale(1.25); } }
@keyframes orbitMushroom { 0%,100% { transform: translate3d(0, 0, 40px) scale(.82); } 50% { transform: translate3d(38vw, 31vh, -90px) scale(.58); } }
@keyframes orbitStone { 0%,100% { transform: translate3d(0, 0, 110px) scale(1.16); filter: blur(.4px); } 50% { transform: translate3d(-34vw, -42vh, -120px) scale(.68); filter: blur(1.1px); } }
@keyframes orbitPod { 0%,100% { transform: translate3d(0, 0, -140px) scale(.58); } 50% { transform: translate3d(17vw, 55vh, 150px) scale(1.2); } }
@keyframes orbitFern { 0%,100% { transform: translate3d(0, 0, 70px) scale(.9); } 50% { transform: translate3d(-14vw, -55vh, -120px) scale(.55); } }
@keyframes grainDrift { 0% { transform: translate(0, 0); } 100% { transform: translate(-2%, 1%); } }
@keyframes tapeBar { 0%, 87%, 100% { opacity: 0; transform: translateY(0); } 88%, 90% { opacity: .75; transform: translateY(20vh); } 92% { opacity: .22; transform: translateY(-18vh); } }

@media (max-width: 820px) {
  .chapter-strip { grid-template-columns: 1fr; margin-top: 1rem; }
  .chapter-card { min-height: auto; border-radius: 1.7rem; }
  .field-note { position: relative; left: auto; bottom: auto; margin: 75vh 1rem 0; }
  .juggle-axis { position: fixed; inset: 10vh 3vw auto; width: 94vw; height: 58vh; }
  .prop em { display: none; }
}