:root {
  /* Interface labels: **Manrope** Manrop for small annotations */
  --violet: #8B5CF6;
  --ink: #07131E;
  --chlorophyll: #1D3B35;
  --glass: #C7F9FF;
  --ivory: #F3F7E8;
  --lime: #D8FF6A;
  --rose: #FF4FB8;
  --scroll-glow: 0;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--ink);
  color: var(--ivory);
  font-family: "Manrope", sans-serif;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse at 17% 12%, rgba(139, 92, 246, .17), transparent 31%),
    radial-gradient(ellipse at 76% 43%, rgba(29, 59, 53, .48), transparent 36%),
    radial-gradient(ellipse at 61% 92%, rgba(199, 249, 255, .08), transparent 34%),
    linear-gradient(90deg, rgba(243, 247, 232, .035) 1px, transparent 1px),
    linear-gradient(0deg, rgba(199, 249, 255, .025) 1px, transparent 1px);
  background-size: auto, auto, auto, 84px 84px, 84px 84px;
  mix-blend-mode: screen;
}

.atlas {
  position: relative;
  min-height: 500vh;
}

.specimen-slide {
  position: relative;
  min-height: 100vh;
  padding: 8vh 8vw;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  overflow: hidden;
  isolation: isolate;
}

.specimen-slide::before {
  content: attr(data-chapter);
  position: absolute;
  top: 7vh;
  left: 35vw;
  font-family: "Unbounded", sans-serif;
  font-size: clamp(4rem, 14vw, 14rem);
  color: rgba(199, 249, 255, .045);
  letter-spacing: -.08em;
  z-index: -1;
}

.telomere-strand {
  position: fixed;
  top: -8vh;
  left: 42vw;
  width: 180px;
  height: 116vh;
  z-index: 6;
  pointer-events: none;
  transform: translateX(calc(sin(var(--scroll-glow) * 1deg) * 1px));
}

.strand-line {
  position: absolute;
  top: 0;
  left: 50%;
  width: 18px;
  height: 100%;
  border-radius: 999px;
  transform: translateX(-50%) rotate(4deg);
  background:
    linear-gradient(180deg, transparent, rgba(199,249,255,.18) 8%, rgba(139,92,246,.65) 21%, rgba(199,249,255,.22) 45%, rgba(29,59,53,.95) 54%, rgba(199,249,255,.25) 76%, rgba(216,255,106,.8) 92%, transparent),
    repeating-linear-gradient(180deg, rgba(243,247,232,.2) 0 6px, transparent 6px 22px);
  box-shadow: 0 0 28px rgba(139, 92, 246, .45), 0 0 46px rgba(199, 249, 255, .15);
  filter: blur(.2px);
}

.strand-line::before,
.strand-line::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  border-left: 2px solid rgba(199, 249, 255, .42);
  transform: translateX(-16px) skewY(-16deg);
}

.strand-line::after {
  border-left: 0;
  border-right: 2px solid rgba(216, 255, 106, .35);
  transform: translateX(16px) skewY(16deg);
}

.strand-beads {
  position: absolute;
  inset: 6vh 0;
}

.strand-beads span {
  position: absolute;
  left: calc(50% + var(--offset));
  top: var(--top);
  width: var(--size);
  height: var(--size);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle at 35% 32%, var(--ivory), var(--glass) 35%, var(--violet) 72%, rgba(7,19,30,.2));
  box-shadow: 0 0 18px rgba(139, 92, 246, .75), inset 0 0 8px rgba(243, 247, 232, .55);
  opacity: .92;
  animation: beadPulse 3.7s ease-in-out infinite;
  animation-delay: var(--delay);
}

.strand-beads span.fraying {
  background: radial-gradient(circle, var(--ivory), var(--rose) 58%, transparent 72%);
  box-shadow: 0 0 23px rgba(255, 79, 184, .8);
}

.strand-beads span.regrowing {
  background: radial-gradient(circle, var(--ivory), var(--lime) 54%, var(--violet) 80%);
  box-shadow: 0 0 30px rgba(216, 255, 106, .9);
}

.cap-bead {
  position: absolute;
  left: 50%;
  width: 52px;
  height: 52px;
  transform: translateX(-50%);
  border-radius: 50% 50% 42% 42%;
  background: radial-gradient(circle at 32% 28%, var(--ivory), var(--lime) 25%, var(--violet) 63%, transparent 75%);
  box-shadow: 0 0 35px rgba(216,255,106,.8), 0 0 68px rgba(139,92,246,.65);
  animation: capFlare 4s ease-in-out infinite;
}

.cap-top { top: 3vh; }
.cap-bottom { bottom: 3vh; animation-delay: -1.8s; }

.title-fragment {
  grid-column: 1 / 3;
  max-width: 980px;
  margin-left: 5vw;
  margin-top: 18vh;
  z-index: 7;
}

.chapter-kicker {
  display: inline-block;
  font-family: "Manrope", sans-serif;
  text-transform: uppercase;
  letter-spacing: .24em;
  font-size: .72rem;
  color: var(--glass);
  border-left: 3px solid var(--rose);
  padding-left: 12px;
}

h1, h2 {
  font-family: "Unbounded", sans-serif;
  font-weight: 500;
  line-height: .92;
  margin: 18px 0;
  letter-spacing: -.07em;
}

h1 {
  font-size: clamp(3.7rem, 10vw, 10.4rem);
  max-width: 12ch;
  text-shadow: 0 0 26px rgba(199, 249, 255, .14);
}

h2 {
  font-size: clamp(2.7rem, 6vw, 7.6rem);
  max-width: 10ch;
}

.tagline {
  font-family: "Cormorant Garamond", serif;
  font-size: clamp(1.8rem, 3vw, 3.6rem);
  font-style: italic;
  color: var(--lime);
  margin: 0;
}

.slide-copy {
  max-width: 640px;
  z-index: 8;
}

.left-copy { grid-column: 1; margin-left: 1vw; }
.right-copy { grid-column: 2; margin-left: auto; }

.slide-copy p {
  font-family: "Cormorant Garamond", serif;
  font-size: clamp(1.35rem, 2.15vw, 2.25rem);
  line-height: 1.18;
  color: rgba(243, 247, 232, .86);
  max-width: 560px;
}

.vellum-note {
  position: absolute;
  z-index: 9;
  width: min(330px, 34vw);
  padding: 24px 28px 22px;
  color: var(--ink);
  background:
    linear-gradient(135deg, rgba(243,247,232,.97), rgba(199,249,255,.82)),
    repeating-linear-gradient(0deg, rgba(29,59,53,.08) 0 1px, transparent 1px 12px);
  font-family: "Cormorant Garamond", serif;
  font-size: 1.24rem;
  line-height: 1.12;
  clip-path: polygon(0 0, 90% 0, 100% 18%, 96% 100%, 8% 96%, 0 76%);
  box-shadow: 0 18px 60px rgba(0,0,0,.35), inset 0 0 0 1px rgba(7,19,30,.13);
  transform-origin: 24px 16px;
  animation: tagTug 5.4s ease-in-out infinite;
}

.vellum-note b {
  display: block;
  font-family: "Manrope", sans-serif;
  text-transform: uppercase;
  letter-spacing: .15em;
  font-size: .66rem;
  color: var(--chlorophyll);
  margin-bottom: 10px;
}

.pin {
  position: absolute;
  width: 16px;
  height: 16px;
  left: 16px;
  top: 13px;
  border-radius: 50%;
  background: var(--rose);
  box-shadow: 0 0 16px rgba(255,79,184,.8);
}

.origin-note { right: 10vw; bottom: 13vh; transform: rotate(-4deg); }
.rotated-note { right: 9vw; top: 18vh; transform: rotate(7deg); }
.fray-note { left: 10vw; bottom: 13vh; transform: rotate(-6deg); }
.bloom-note { right: 13vw; bottom: 16vh; transform: rotate(3deg); }
.final-note { left: 8vw; top: 18vh; transform: rotate(-3deg); }

.lens-mask {
  position: absolute;
  right: 6vw;
  top: 9vh;
  width: min(44vw, 650px);
  height: min(44vw, 650px);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(199,249,255,.12), rgba(7,19,30,.28) 56%, rgba(7,19,30,.82) 70%);
  border: 1px solid rgba(199,249,255,.42);
  box-shadow: inset 0 0 64px rgba(199,249,255,.16), 0 0 90px rgba(139,92,246,.16);
  overflow: hidden;
  mix-blend-mode: screen;
  z-index: 5;
}

.lens-ring {
  position: absolute;
  inset: 8%;
  border-radius: 50%;
  border: 2px dashed rgba(216,255,106,.42);
  animation: rotateRing 18s linear infinite;
}

.lens-strand {
  position: absolute;
  top: 49%;
  left: -14%;
  width: 128%;
  height: 70px;
  transform: rotate(-14deg);
  animation: lensDrift 9s ease-in-out infinite;
}

.lens-strand span {
  display: inline-block;
  width: 74px;
  height: 34px;
  margin: 14px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--violet), var(--glass), var(--lime));
  box-shadow: 0 0 24px rgba(216,255,106,.72);
}

.hidden-fragment {
  position: absolute;
  bottom: 25%;
  left: 18%;
  font-family: "Cormorant Garamond", serif;
  font-size: clamp(1.3rem, 2.4vw, 2.8rem);
  font-style: italic;
  color: var(--lime);
  opacity: .78;
}

.dust-field {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 20;
  overflow: hidden;
}

.dust-field span {
  position: absolute;
  width: 2px;
  height: 2px;
  border-radius: 50%;
  background: rgba(199,249,255,.7);
  box-shadow: 0 0 8px rgba(199,249,255,.9);
  animation: dustFloat var(--duration) linear infinite;
  animation-delay: var(--delay);
}

.microfiche-stack {
  position: absolute;
  right: 8vw;
  bottom: 10vh;
  width: 35vw;
  height: 44vh;
  opacity: .7;
}

.microfiche-stack span {
  position: absolute;
  width: 72%;
  height: 22%;
  left: calc(var(--i, 1) * 18px);
  top: calc(var(--i, 1) * 38px);
  background: linear-gradient(90deg, rgba(199,249,255,.15), rgba(29,59,53,.42));
  border: 1px solid rgba(199,249,255,.24);
  clip-path: polygon(0 0, 86% 0, 100% 32%, 100% 100%, 0 100%);
}

.microfiche-stack span:nth-child(1) { --i: 1; }
.microfiche-stack span:nth-child(2) { --i: 2; }
.microfiche-stack span:nth-child(3) { --i: 3; }
.microfiche-stack span:nth-child(4) { --i: 4; }
.microfiche-stack span:nth-child(5) { --i: 5; }

.lens-callout {
  position: absolute;
  right: 18vw;
  top: 28vh;
  width: 190px;
  height: 120px;
  border-radius: 50%;
  border: 1px solid rgba(199,249,255,.5);
  display: grid;
  place-items: center;
  color: var(--glass);
  font-family: "Unbounded", sans-serif;
  font-size: .8rem;
  letter-spacing: .17em;
  text-transform: uppercase;
  box-shadow: inset 0 0 28px rgba(199,249,255,.1);
  transform: rotate(-12deg);
}

.chromosome-shadow {
  position: absolute;
  width: 60vw;
  height: 22vw;
  border-radius: 50%;
  background: radial-gradient(ellipse, rgba(29,59,53,.58), transparent 66%);
  filter: blur(13px);
  z-index: -1;
}

.shadow-one { left: -14vw; top: 12vh; transform: rotate(25deg); }
.shadow-two { right: -18vw; top: 28vh; transform: rotate(-32deg); }

.fray-specimen {
  position: absolute;
  left: 13vw;
  top: 24vh;
  width: 32vw;
  height: 45vh;
  transform: rotate(-24deg);
}

.fray-specimen span {
  display: inline-block;
  width: 66px;
  height: 66px;
  margin: 13px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--ivory), var(--violet) 54%, var(--ink) 72%);
  box-shadow: 0 0 25px rgba(139,92,246,.75);
}

.fray-specimen .missing {
  background: radial-gradient(circle, var(--rose), transparent 67%);
  border: 1px dashed var(--rose);
  opacity: .6;
  animation: scarBlink 1.8s ease-in-out infinite;
}

.warning-copy h2 { color: var(--ivory); text-shadow: 0 0 24px rgba(255,79,184,.22); }

.repair-bloom {
  position: absolute;
  left: 13vw;
  top: 17vh;
  width: 40vw;
  height: 40vw;
  min-width: 340px;
  min-height: 340px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(216,255,106,.22), rgba(139,92,246,.12) 36%, transparent 62%);
  filter: drop-shadow(0 0 38px rgba(216,255,106,.45));
  animation: bloomBreathe 4.2s ease-in-out infinite;
}

.bloom-core {
  position: absolute;
  inset: 35%;
  border-radius: 50%;
  background: radial-gradient(circle, var(--ivory), var(--lime) 38%, var(--violet) 72%);
  box-shadow: 0 0 70px rgba(216,255,106,.8);
}

.enzyme {
  position: absolute;
  width: 96px;
  height: 96px;
  border: 12px solid var(--lime);
  border-right-color: transparent;
  border-bottom-color: transparent;
  border-radius: 50%;
  opacity: .78;
  animation: enzymeOrbit 7s linear infinite;
}

.enzyme-a { left: 14%; top: 20%; }
.enzyme-b { right: 14%; top: 36%; animation-delay: -2.2s; }
.enzyme-c { left: 38%; bottom: 10%; animation-delay: -4s; }

.cap-cabinet {
  position: absolute;
  left: 8vw;
  bottom: 9vh;
  width: 48vw;
  height: 64vh;
}

.cabinet-ring {
  position: absolute;
  inset: 8%;
  border-radius: 50%;
  border: 1px solid rgba(199,249,255,.3);
  box-shadow: inset 0 0 55px rgba(199,249,255,.08);
}

.archive-cap {
  position: absolute;
  width: 86px;
  height: 86px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: "Unbounded", sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at 30% 28%, var(--ivory), var(--lime) 32%, var(--violet) 78%);
  box-shadow: 0 0 45px rgba(216,255,106,.55);
}

.cap-a { left: 16%; top: 36%; }
.cap-b { left: 42%; top: 10%; }
.cap-c { right: 14%; top: 34%; }
.cap-d { left: 35%; bottom: 12%; }
.cap-e { right: 28%; bottom: 26%; background: radial-gradient(circle, var(--ivory), var(--rose) 55%, var(--violet)); }

.inspect-tag {
  position: relative;
  margin-top: 16px;
  padding: 14px 24px;
  border: 1px solid rgba(199,249,255,.42);
  background: rgba(243,247,232,.08);
  color: var(--lime);
  font-family: "Manrope", sans-serif;
  text-transform: uppercase;
  letter-spacing: .18em;
  font-size: .72rem;
  clip-path: polygon(0 0, 88% 0, 100% 50%, 88% 100%, 0 100%, 7% 50%);
  cursor: pointer;
  transition: transform .3s ease, background .3s ease, color .3s ease;
}

.inspect-tag:hover,
.inspect-tag.active {
  transform: translateX(8px);
  background: rgba(216,255,106,.18);
  color: var(--ivory);
}

.final-note.revealed {
  animation: revealTag .8s ease both, tagTug 5.4s ease-in-out infinite .8s;
}

.bead-nav {
  position: fixed;
  right: 28px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 30;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.nav-bead {
  position: relative;
  width: 18px;
  height: 18px;
  padding: 0;
  border: 1px solid rgba(199,249,255,.45);
  border-radius: 50%;
  background: rgba(7,19,30,.8);
  cursor: pointer;
  transition: box-shadow .3s ease, background .3s ease, transform .3s ease;
}

.nav-bead.active {
  background: var(--violet);
  transform: scale(1.35);
  box-shadow: 0 0 24px rgba(139,92,246,.8), 0 0 32px rgba(216,255,106,.35);
}

.nav-bead span {
  position: absolute;
  right: 30px;
  top: 50%;
  transform: translateY(-50%);
  white-space: nowrap;
  font-family: "Manrope", sans-serif;
  font-size: .66rem;
  text-transform: uppercase;
  letter-spacing: .14em;
  color: var(--glass);
  opacity: 0;
  transition: opacity .3s ease;
}

.nav-bead:hover span,
.nav-bead.active span { opacity: 1; }

@keyframes beadPulse {
  0%, 100% { transform: translate(-50%, -50%) scale(.82); opacity: .62; }
  50% { transform: translate(-50%, -50%) scale(1.18); opacity: 1; }
}

@keyframes capFlare {
  0%, 100% { filter: brightness(.95); transform: translateX(-50%) scale(.92); }
  45% { filter: brightness(1.45); transform: translateX(-50%) scale(1.08); }
}

@keyframes rotateRing { to { transform: rotate(360deg); } }

@keyframes lensDrift {
  0%, 100% { transform: translateX(-8%) rotate(-14deg); }
  50% { transform: translateX(8%) rotate(-14deg); }
}

@keyframes tagTug {
  0%, 100% { translate: 0 0; }
  50% { translate: 0 7px; }
}

@keyframes dustFloat {
  0% { transform: translate3d(0, 106vh, 0); opacity: 0; }
  10%, 80% { opacity: .75; }
  100% { transform: translate3d(24px, -12vh, 0); opacity: 0; }
}

@keyframes scarBlink {
  50% { opacity: 1; box-shadow: 0 0 42px rgba(255,79,184,.9); }
}

@keyframes bloomBreathe {
  0%, 100% { transform: scale(.96); opacity: .72; }
  50% { transform: scale(1.06); opacity: 1; }
}

@keyframes enzymeOrbit {
  to { transform: rotate(360deg); }
}

@keyframes revealTag {
  from { opacity: .35; transform: translateY(26px) rotate(-12deg); }
  to { opacity: 1; transform: translateY(0) rotate(-3deg); }
}

@media (max-width: 860px) {
  .specimen-slide { grid-template-columns: 1fr; padding: 9vh 7vw; }
  .specimen-slide::before { left: 9vw; }
  .telomere-strand { left: 78vw; opacity: .72; }
  .title-fragment, .left-copy, .right-copy { grid-column: 1; margin-left: 0; }
  .lens-mask { right: -20vw; width: 78vw; height: 78vw; }
  .vellum-note { width: min(330px, 76vw); }
  .origin-note, .rotated-note, .fray-note, .bloom-note, .final-note { right: auto; left: 7vw; bottom: 7vh; top: auto; }
  .bead-nav { right: 14px; }
  .microfiche-stack, .cap-cabinet { width: 82vw; opacity: .45; }
  .repair-bloom { left: -16vw; top: 42vh; }
}