.bio-shell {
  position: relative;
  overflow-x: clip;
}

.bio-shell::before,
.bio-shell::after {
  content: "";
  position: fixed;
  inset: auto;
  pointer-events: none;
  z-index: -3;
  filter: blur(48px);
  opacity: 0.58;
}

.bio-shell::before {
  top: 8%;
  left: -8rem;
  width: 28rem;
  height: 28rem;
  border-radius: 43% 57% 61% 39% / 42% 37% 63% 58%;
  background:
    radial-gradient(circle at 30% 30%, rgba(141, 199, 191, 0.34), transparent 58%),
    radial-gradient(circle at 70% 65%, rgba(113, 156, 151, 0.2), transparent 62%),
    rgba(11, 31, 31, 0.06);
}

.bio-shell::after {
  right: -7rem;
  bottom: 10%;
  width: 26rem;
  height: 26rem;
  border-radius: 61% 39% 34% 66% / 51% 50% 50% 49%;
  background:
    radial-gradient(circle at 45% 35%, rgba(196, 218, 181, 0.18), transparent 52%),
    radial-gradient(circle at 70% 70%, rgba(110, 150, 125, 0.18), transparent 64%);
}

.archive-hero,
.chapter-shell-logic,
.chapter-blade,
.chapter-surface,
.chapter-precision,
.chapter-contact {
  position: relative;
}

.archive-shell {
  position: relative;
}

.archive-shell::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: calc(var(--radius-2xl) + 0.5rem);
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent 28%, transparent 72%, rgba(255, 255, 255, 0.02)),
    radial-gradient(circle at top left, rgba(143, 199, 192, 0.08), transparent 30%),
    radial-gradient(circle at bottom right, rgba(190, 211, 183, 0.05), transparent 28%);
  opacity: 0.9;
}

.living-hero {
  min-height: 100svh;
  display: flex;
  align-items: center;
}

.living-hero::before {
  content: "";
  position: absolute;
  inset: 8% 4% auto 4%;
  height: 78%;
  z-index: -1;
  border-radius: 3rem;
  background:
    radial-gradient(circle at 18% 24%, rgba(152, 205, 197, 0.14), transparent 20%),
    radial-gradient(circle at 78% 34%, rgba(212, 226, 196, 0.08), transparent 22%),
    radial-gradient(circle at 55% 72%, rgba(90, 133, 128, 0.12), transparent 26%);
  filter: blur(18px);
  opacity: 0.95;
}

.archive-hero .chapter-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}

.archive-hero__copy {
  max-width: 42rem;
}

.archive-hero__copy h1 {
  max-width: 11ch;
}

.archive-hero__copy .hero-text {
  max-width: 58ch;
  margin-top: var(--space-6);
  font-size: var(--text-lg);
  color: var(--color-text-muted);
}

.archive-signal-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: var(--space-8);
}

.archive-signal-strip span {
  padding: 0.65rem 0.9rem;
  border-radius: 999px;
  border: 1px solid rgba(194, 210, 201, 0.16);
  background: rgba(255, 255, 255, 0.02);
  color: var(--color-text-soft);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.archive-hero__visual {
  display: grid;
  place-items: center;
}

.organism-core {
  position: relative;
  width: min(34rem, 86vw);
  aspect-ratio: 1 / 1;
  display: grid;
  place-items: center;
}

.organism-core__halo {
  position: absolute;
  inset: 10%;
  border-radius: 50%;
  background:
    radial-gradient(circle, rgba(131, 190, 182, 0.22), transparent 52%),
    radial-gradient(circle at 50% 50%, rgba(221, 231, 205, 0.08), transparent 70%);
  filter: blur(18px);
  animation: slowPulse 7s ease-in-out infinite;
}

.organism-core__shell {
  position: absolute;
  border-radius: 48% 52% 51% 49% / 44% 42% 58% 56%;
  border: 1px solid rgba(190, 215, 206, 0.15);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.008)),
    radial-gradient(circle at 30% 30%, rgba(158, 210, 202, 0.09), transparent 46%);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.02),
    0 0 40px rgba(71, 112, 107, 0.12);
}

.organism-core__shell--outer {
  inset: 4%;
  transform: rotate(-7deg);
}

.organism-core__shell--mid {
  inset: 16%;
  transform: rotate(11deg);
}

.organism-core__shell--inner {
  inset: 28%;
  transform: rotate(-12deg);
}

.organism-core__spine {
  position: absolute;
  width: 0.95rem;
  height: 68%;
  border-radius: 999px;
  background:
    linear-gradient(
      180deg,
      rgba(214, 227, 198, 0.2),
      rgba(90, 142, 135, 0.55),
      rgba(214, 227, 198, 0.16)
    );
  box-shadow:
    0 0 24px rgba(83, 132, 126, 0.26),
    inset 0 0 10px rgba(255, 255, 255, 0.08);
}

.organism-core__pulse {
  position: absolute;
  width: 20%;
  aspect-ratio: 1 / 1;
  border-radius: 38% 62% 55% 45% / 47% 42% 58% 53%;
  background:
    radial-gradient(circle at 35% 35%, rgba(240, 247, 235, 0.84), rgba(140, 198, 190, 0.34) 45%, rgba(58, 96, 92, 0.2) 72%, transparent 100%);
  box-shadow:
    0 0 48px rgba(123, 181, 173, 0.25),
    0 0 90px rgba(123, 181, 173, 0.14);
  animation: coreBreath 6.5s ease-in-out infinite;
}

.split-shell .section-heading {
  max-width: 54rem;
}

.shell-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1rem, 2vw, 1.4rem);
  margin-top: var(--space-10);
}

.shell-note {
  position: relative;
  min-height: 18rem;
  padding: 1.5rem;
  border-radius: 1.8rem;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.015)),
    radial-gradient(circle at top right, rgba(142, 198, 191, 0.12), transparent 32%),
    rgba(12, 18, 18, 0.58);
  border: 1px solid rgba(190, 213, 203, 0.1);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.03),
    0 16px 50px rgba(0, 0, 0, 0.16);
}

.shell-note::after {
  content: "";
  position: absolute;
  inset: auto 1.2rem 1rem 1.2rem;
  height: 1px;
  background: linear-gradient(90deg, rgba(191, 218, 209, 0.16), transparent);
}

.shell-note span,
.rift-text span,
.contact-panel__meta span {
  display: inline-block;
  margin-bottom: 0.9rem;
  color: var(--color-accent-2);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
}

.shell-note h3,
.rift-text h3,
.protocol-card h3,
.contact-panel__meta strong {
  margin-bottom: 0.9rem;
}

.shell-note p,
.rift-text p,
.contact-panel__meta,
.section-heading p {
  color: var(--color-text-muted);
}

.world-band .chapter-shell {
  display: grid;
  gap: var(--space-10);
}

.world-rift {
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(1.2rem, 3vw, 2.4rem);
  align-items: stretch;
}

.reverse-band .world-rift {
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
}

.rift-visual {
  position: relative;
  min-height: 28rem;
  border-radius: 2rem;
  overflow: hidden;
  background-color: rgba(13, 21, 21, 0.76);
  border: 1px solid rgba(190, 213, 203, 0.1);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.02),
    0 20px 70px rgba(0, 0, 0, 0.18);
}

.rift-visual::before,
.rift-visual::after {
  content: "";
  position: absolute;
  inset: 0;
}

.rift-visual::before {
  background:
    radial-gradient(circle at 30% 30%, rgba(161, 210, 199, 0.18), transparent 24%),
    radial-gradient(circle at 72% 64%, rgba(205, 224, 194, 0.12), transparent 22%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.025), transparent 52%);
}

.rift-visual::after {
  background:
    repeating-linear-gradient(
      180deg,
      transparent 0,
      transparent 18px,
      rgba(198, 216, 205, 0.035) 18px,
      rgba(198, 216, 205, 0.035) 19px
    );
  mix-blend-mode: screen;
}

.rift-visual--blade {
  background-image:
    radial-gradient(circle at 48% 50%, rgba(85, 128, 123, 0.4), transparent 18%),
    linear-gradient(180deg, rgba(15, 20, 20, 0.2), rgba(4, 8, 8, 0.7));
}

.rift-visual--blade .inner-shell,
.rift-visual--surface .inner-shell,
.rift-visual--precision .inner-shell {
  display: none;
}

.rift-visual--blade::before {
  background:
    linear-gradient(90deg, transparent 0 22%, rgba(194, 219, 210, 0.18) 22% 24%, transparent 24% 100%),
    radial-gradient(circle at 55% 48%, rgba(165, 213, 205, 0.16), transparent 18%),
    radial-gradient(circle at 32% 75%, rgba(201, 222, 187, 0.08), transparent 22%);
}

.rift-visual--surface::before {
  background:
    linear-gradient(115deg, transparent 0 36%, rgba(183, 214, 202, 0.08) 36% 44%, transparent 44% 100%),
    radial-gradient(circle at 60% 40%, rgba(129, 187, 179, 0.14), transparent 18%),
    radial-gradient(circle at 25% 78%, rgba(209, 225, 191, 0.09), transparent 24%);
}

.rift-visual--precision::before {
  background:
    radial-gradient(circle at 50% 50%, rgba(162, 214, 205, 0.12), transparent 16%),
    radial-gradient(circle at 30% 30%, rgba(218, 230, 198, 0.08), transparent 18%),
    linear-gradient(135deg, transparent 0 44%, rgba(189, 214, 205, 0.06) 44% 49%, transparent 49% 100%);
}

.rift-text {
  display: grid;
  gap: 1rem;
}

.rift-text article {
  position: relative;
  padding: 1.4rem 1.4rem 1.5rem;
  border-radius: 1.5rem;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.012)),
    rgba(12, 17, 17, 0.64);
  border: 1px solid rgba(190, 213, 203, 0.08);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.02),
    0 12px 40px rgba(0, 0, 0, 0.14);
}

.contact-shell .section-heading {
  max-width: 48rem;
}

.contact-panel {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: var(--space-8);
}

.contact-panel__meta {
  padding: 1.2rem 1.2rem 1.35rem;
  border-radius: 1.4rem;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.015)),
    rgba(10, 15, 15, 0.68);
  border: 1px solid rgba(190, 213, 203, 0.08);
}

.terminal-band {
  margin-top: var(--space-10);
}

.protocol-grid {
  margin-top: var(--space-8);
}

.chapter-shell-logic::after,
.chapter-blade::after,
.chapter-surface::after,
.chapter-precision::after {
  content: "";
  position: absolute;
  left: 8%;
  right: 8%;
  bottom: -1rem;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(189, 214, 204, 0.16), transparent);
}

@keyframes coreBreath {
  0%, 100% {
    transform: scale(0.94);
    opacity: 0.72;
  }
  50% {
    transform: scale(1.08);
    opacity: 1;
  }
}

@keyframes slowPulse {
  0%, 100% {
    transform: scale(0.98);
    opacity: 0.7;
  }
  50% {
    transform: scale(1.04);
    opacity: 1;
  }
}

@media (max-width: 1100px) {
  .archive-hero .chapter-shell,
  .world-rift,
  .reverse-band .world-rift {
    grid-template-columns: 1fr;
  }

  .shell-grid,
  .contact-panel {
    grid-template-columns: 1fr;
  }

  .rift-visual {
    min-height: 22rem;
  }
}

@media (max-width: 720px) {
  .living-hero {
    min-height: auto;
  }

  .archive-hero__copy .hero-text {
    font-size: var(--text-base);
  }

  .organism-core {
    width: min(24rem, 92vw);
  }

  .shell-note,
  .rift-text article,
  .contact-panel__meta {
    border-radius: 1.2rem;
  }

  .archive-signal-strip {
    gap: 0.65rem;
  }

  .archive-signal-strip span {
    width: 100%;
  }
}