:root {
  --ivory: #f6efe1;
  --ivory-deep: #efe2cd;
  --paper: #fffaf0;
  --ink: #201c18;
  --muted: #675f55;
  --soft: #8f806f;
  --line: rgba(32, 28, 24, 0.16);
  --sage: #536d52;
  --clay: #8f553d;
  --blue-gray: #465564;
  --focus: #5f7f67;
  --landing-x: 54%;
  --landing-y: 45%;
  --spin-end: 92%;
  --serif: Newsreader, Georgia, "Times New Roman", serif;
  --sans: "Nunito Sans", "Segoe UI", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--ivory);
  color: var(--ink);
  font-family: var(--serif);
  font-optical-sizing: auto;
  text-rendering: optimizeLegibility;
}

html.embedded-view,
html.embedded-view body {
  height: 100%;
  overflow: hidden;
}

html.embedded-view .page-scroll-shell {
  position: fixed;
  inset: 0;
  width: 100%;
  height: auto;
  overflow-x: hidden;
  overflow-y: scroll;
  overscroll-behavior-y: auto;
  padding-bottom: 14rem;
  scroll-behavior: smooth;
  scrollbar-gutter: stable;
  touch-action: pan-y;
  -webkit-overflow-scrolling: touch;
}

html.intro-active,
html.intro-active body {
  height: 100%;
  overflow: hidden;
}

html.intro-active .page-scroll-shell {
  height: 100svh;
  overflow: hidden;
  padding-bottom: 0;
}

html.intro-active .page-scroll-shell > main > section:not(#introduction),
html.intro-active .site-footer {
  display: none;
}

a {
  color: inherit;
}

img {
  display: block;
  max-width: 100%;
}

.skip-link {
  position: fixed;
  top: 16px;
  left: 16px;
  z-index: 20;
  transform: translateY(-140%);
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 0.9rem;
  padding: 0.7rem 0.9rem;
  text-decoration: none;
}

.skip-link:focus {
  transform: translateY(0);
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

.site-top,
.reader-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: clamp(1rem, 3vw, 2rem) clamp(1rem, 5vw, 4rem);
  font-family: var(--sans);
  font-size: 0.88rem;
}

.site-top {
  position: absolute;
  inset: 0 0 auto;
  z-index: 3;
}

.home-page .site-top {
  color: #fffaf0;
  text-shadow: 0 1px 16px rgba(0, 0, 0, 0.38);
  animation: nav-to-ink 1.35s ease-in-out forwards;
  animation-delay: 30s;
}

.home-page .site-top .top-nav {
  color: inherit;
  opacity: 1;
}

.home-page .site-top .top-nav a:hover,
.home-page .site-top .top-nav a:focus-visible {
  color: inherit;
}

.intro-controls {
  position: fixed;
  right: clamp(1rem, 3vw, 2rem);
  bottom: clamp(1rem, 3vw, 2rem);
  z-index: 10;
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.5rem;
  font-family: var(--sans);
}

.intro-controls[hidden] {
  display: none;
}

.intro-control {
  min-height: 44px;
  border: 2px solid #fffaf0;
  border-radius: 6px;
  background: #201c18;
  color: #fffaf0;
  cursor: pointer;
  font: inherit;
  font-size: 0.88rem;
  font-weight: 700;
  padding: 0.65rem 0.85rem;
}

.intro-control:hover {
  background: #405640;
}

.intro-control:focus-visible {
  outline: 3px solid #fffaf0;
  outline-offset: 3px;
  box-shadow: 0 0 0 5px #201c18;
}

.brand-link,
.top-nav a {
  text-decoration: none;
}

.brand-link {
  font-weight: 600;
}

.top-nav {
  display: flex;
  align-items: center;
  gap: clamp(0.8rem, 2vw, 1.4rem);
  color: var(--muted);
}

.top-nav a {
  border-bottom: 1px solid transparent;
  padding-block: 0.2rem;
}

.top-nav a:hover,
.top-nav a:focus-visible {
  border-color: currentColor;
  color: var(--ink);
}

.opening {
  position: relative;
  display: grid;
  min-height: 100svh;
  place-items: center;
  overflow: hidden;
  padding: clamp(5.2rem, 12vh, 8.5rem) clamp(1rem, 4vw, 3rem) clamp(2.5rem, 7vh, 4.8rem);
  background: #090b10;
  isolation: isolate;
  animation: opening-warm 2.2s ease-in-out forwards;
  animation-delay: 28.8s;
}

.opening::before {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: rgba(0, 0, 0, 0.58);
  content: "";
  opacity: 1;
  pointer-events: none;
  animation: intro-scrim-away 1.7s cubic-bezier(0.22, 0.61, 0.36, 1) forwards 29.65s;
}

.opening::after {
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    linear-gradient(
      180deg,
      rgba(246, 239, 225, 0.28) 0%,
      rgba(246, 239, 225, 0.2) 38%,
      rgba(246, 239, 225, 0.06) 68%,
      rgba(246, 239, 225, 0.08) 100%
    ),
    url("assets/landing-background-v4-desktop.webp") center 18% / cover no-repeat;
  content: "";
  opacity: 0;
  pointer-events: none;
  animation: landing-background-in 2.4s cubic-bezier(0.22, 0.61, 0.36, 1) forwards 28.75s;
}

.earth-sequence {
  position: absolute;
  inset: 0;
  z-index: -3;
  overflow: hidden;
  background: #07090e;
  opacity: 1;
  animation: earth-layer-fade 2.1s cubic-bezier(0.4, 0, 0.2, 1) forwards;
  animation-delay: 29.05s;
}

.star-field {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 9% 18%, rgba(255, 255, 255, 0.78) 0 1px, transparent 1.6px),
    radial-gradient(circle at 24% 68%, rgba(255, 255, 255, 0.52) 0 1px, transparent 1.5px),
    radial-gradient(circle at 49% 24%, rgba(255, 255, 255, 0.7) 0 1px, transparent 1.7px),
    radial-gradient(circle at 72% 72%, rgba(255, 255, 255, 0.46) 0 1px, transparent 1.7px),
    radial-gradient(circle at 87% 35%, rgba(255, 255, 255, 0.66) 0 1px, transparent 1.6px);
  background-size: 310px 270px, 420px 360px, 360px 310px, 520px 440px, 470px 390px;
  opacity: 0.55;
  animation: stars-drift 32s linear forwards;
}

.globe-journey {
  position: absolute;
  top: 52%;
  left: 50%;
  display: grid;
  width: clamp(340px, 60vw, 880px);
  aspect-ratio: 1;
  place-items: center;
  opacity: 0;
  filter: drop-shadow(0 30px 72px rgba(0, 0, 0, 0.46));
  transform: translate(-50%, -50%) scale(0.64);
  will-change: opacity, transform;
  animation: globe-approach 23.85s cubic-bezier(0.22, 0.72, 0.14, 1) forwards;
}

.globe-shell {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  border-radius: 50%;
  box-shadow:
    0 0 26px rgba(150, 211, 255, 0.32),
    0 0 92px rgba(78, 155, 221, 0.34),
    inset -82px -36px 104px rgba(0, 0, 0, 0.62),
    inset 34px 20px 46px rgba(255, 255, 255, 0.18);
}

.globe-shell::before,
.globe-shell::after {
  position: absolute;
  border-radius: 50%;
  content: "";
  pointer-events: none;
}

.globe-shell::before {
  inset: 0;
  z-index: 2;
  background:
    radial-gradient(circle at 30% 24%, rgba(255, 255, 255, 0.34), rgba(255, 255, 255, 0.12) 16%, transparent 31%),
    radial-gradient(circle at 65% 58%, transparent 42%, rgba(0, 0, 0, 0.45) 70%, rgba(0, 0, 0, 0.82) 100%);
}

.globe-shell::after {
  inset: -1%;
  z-index: 4;
  background:
    radial-gradient(circle at 50% 50%, transparent 63%, rgba(137, 208, 255, 0.38) 70%, rgba(255, 255, 255, 0.1) 74%, transparent 82%);
}

.globe-canvas {
  position: absolute;
  inset: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  opacity: 0;
  transition: opacity 0.5s ease;
}

.globe-shell--rendered .globe-canvas {
  opacity: 1;
}

.globe-shell--rendered .globe-map {
  opacity: 0;
}

.globe-map {
  position: absolute;
  inset: -6% -22%;
  z-index: 0;
  background-image: url("assets/earth-texture.webp");
  background-position: 0% center;
  background-repeat: repeat-x;
  background-size: auto 112%;
  filter: saturate(1.02) contrast(1.04) brightness(0.86);
  transform: scaleX(1.04) translateZ(0);
  transform-origin: center;
  will-change: background-position, filter;
  animation:
    world-spin 32s linear forwards,
    globe-surface-soften 7.85s ease forwards 15.4s;
}

.globe-atmosphere {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background:
    radial-gradient(circle at 29% 22%, rgba(255, 255, 255, 0.2), transparent 24%),
    radial-gradient(circle at 48% 50%, transparent 56%, rgba(70, 150, 215, 0.22) 67%, transparent 79%);
  opacity: 0.9;
  pointer-events: none;
  z-index: 3;
}

.landing-point {
  position: absolute;
  top: var(--landing-y);
  left: var(--landing-x);
  width: clamp(8px, 1.2vw, 13px);
  height: clamp(8px, 1.2vw, 13px);
  border: 2px solid rgba(255, 250, 240, 0.86);
  border-radius: 50%;
  box-shadow:
    0 0 0 7px rgba(255, 250, 240, 0.12),
    0 0 20px rgba(255, 250, 240, 0.52);
  z-index: 5;
  opacity: 0;
  transform: translate(-50%, -50%) scale(0.55);
  animation: landing-arrive 23.85s ease forwards;
}

.descent-layer,
.ground-arrival {
  position: absolute;
  inset: 0;
  opacity: 0;
}

.descent-layer img,
.ground-arrival img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.atmosphere-descent {
  transform: scale(1.06);
  animation: atmosphere-phase 11.35s cubic-bezier(0.18, 0.72, 0.2, 1) forwards;
  animation-delay: 12.95s;
}

.forest-descent {
  transform: scale(1.08);
  animation: forest-phase 10.5s cubic-bezier(0.18, 0.72, 0.2, 1) forwards;
  animation-delay: 17.45s;
}

.ground-arrival {
  transform: scale(1.08);
  animation: ground-arrival 9.6s cubic-bezier(0.18, 0.72, 0.2, 1) forwards;
  animation-delay: 21.95s;
}

.micro-light {
  position: absolute;
  inset: 0;
  background: rgba(246, 239, 225, 0.9);
  opacity: 0;
  animation: micro-field 1.3s ease forwards;
  animation-delay: 28.7s;
}

.opening-inner {
  position: relative;
  z-index: 1;
  width: min(920px, 100%);
  min-height: clamp(520px, 72svh, 720px);
  display: grid;
  place-items: center;
  margin-inline: auto;
  text-align: center;
}

.intro-journey {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  pointer-events: none;
}

.final-arrival {
  width: 100%;
}

.phase {
  opacity: 0;
  transform: translate3d(0, 0, 0) scale3d(0.985, 0.985, 1);
  transform-origin: center center;
  backface-visibility: hidden;
  will-change: opacity, transform;
  animation: quiet-in 1.15s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.book-credit,
.section-kicker {
  margin: 0 0 0.55rem;
  color: var(--clay);
  font-family: var(--sans);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.disturbance {
  margin: 0 auto;
  max-width: min(900px, 100%);
  color: #fffaf0;
  font-size: clamp(1.7rem, 5vw, 5rem);
  font-weight: 500;
  line-height: 1.05;
  text-shadow: 0 2px 24px rgba(0, 0, 0, 0.42);
  animation:
    quiet-in 1.1s cubic-bezier(0.16, 1, 0.3, 1) forwards 0.35s,
    title-leave 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards 3.65s;
}

.question-flight {
  position: absolute;
  inset: 0;
  display: grid;
  margin: 0;
  min-height: 0;
  place-items: center;
  perspective: 1180px;
  pointer-events: none;
}

.question-flight p {
  position: absolute;
  inset: 0;
  display: grid;
  margin: 0;
  place-items: center;
  color: #fffaf0;
  font-size: clamp(1.7rem, 5vw, 5rem);
  font-weight: 500;
  line-height: 1.05;
  opacity: 0;
  text-shadow: 0 2px 24px rgba(0, 0, 0, 0.48);
  transform: translate3d(0, 0, 0) scale3d(0.96, 0.96, 1);
  transform-origin: center center;
  backface-visibility: hidden;
  will-change: opacity, transform;
  animation: question-approach 2.9s linear both;
}

.question-flight p:nth-child(1) {
  animation-delay: 3.9s;
}

.question-flight p:nth-child(2) {
  animation-delay: 6.4s;
}

.question-flight p:nth-child(3) {
  animation-delay: 8.9s;
}

.question-flight p:nth-child(4) {
  animation-delay: 11.4s;
}

.question-flight p:nth-child(5) {
  animation-delay: 13.9s;
}

.question-flight p:nth-child(6) {
  animation-delay: 16.65s;
}

.question-flight p:nth-child(7) {
  animation-delay: 19.75s;
}

.question-flight p:nth-child(8) {
  animation-delay: 24.55s;
}

.question-flight p:nth-child(9) {
  animation-delay: 27.05s;
}

.question-flight .reflection-line {
  width: min(98%, 1180px);
  padding-inline: 1rem;
  font-size: clamp(2.3rem, 5.2vw, 5.2rem);
  line-height: 1.08;
  animation-duration: 4.7s;
}

.question-flight .mid-central-question {
  grid-auto-rows: max-content;
  align-content: center;
  justify-items: center;
  gap: 0.06em;
  font-size: clamp(2.15rem, 6vw, 5.1rem);
  line-height: 1;
  animation-duration: 3.3s;
}

.landing-title {
  animation-duration: 1.65s;
  animation-delay: 30.05s;
}

.landing-title .book-credit {
  margin-top: 1.15rem;
  color: #713d2c;
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  text-transform: none;
}

.landing-title h1 {
  display: grid;
  width: max-content;
  max-width: 100%;
  margin: 0 auto;
  font-size: clamp(2.85rem, 4.35vw, 3.75rem);
  font-weight: 500;
  line-height: 0.88;
}

.landing-title h1 span {
  display: block;
}

.description-copy {
  max-width: 650px;
  margin: 1.75rem auto 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  line-height: 1.5;
  animation-duration: 1.55s;
  animation-delay: 30.4s;
}

.description-copy p {
  margin: 0;
}

.sprout-stage {
  display: grid;
  height: clamp(360px, 45vh, 400px);
  margin: 0.35rem auto 0;
  place-items: end center;
  overflow: hidden;
  padding-bottom: 8px;
  pointer-events: none;
}

.sprout-pair {
  display: flex;
  width: min(100%, clamp(280px, 38vw, 480px));
  height: 100%;
  align-items: flex-end;
  justify-content: center;
  transform: none;
}

.sprout-plant {
  --sprout-rotate: 0deg;
  --sprout-scale: 1;
  --sprout-x: 0;
  display: block;
  flex: 0 0 auto;
  transform: translateY(78%) translateX(var(--sprout-x)) scale(var(--sprout-scale)) rotate(var(--sprout-rotate));
  transform-origin: bottom center;
  animation: sprout-rise 2.3s cubic-bezier(0.2, 0.76, 0.22, 1) forwards;
  animation-delay: 29.8s;
}

.sprout-plant img {
  width: clamp(150px, 20vw, 240px);
}

.sprout-plant-short {
  --sprout-rotate: -2deg;
  --sprout-scale: 0.86;
  --sprout-x: 10px;
  z-index: 1;
  margin-right: clamp(-28px, -2.3vw, -14px);
  animation-delay: 29.9s;
}

.sprout-plant-tall {
  --sprout-rotate: 1.5deg;
  --sprout-scale: 1.08;
  --sprout-x: -8px;
  z-index: 2;
  margin-left: clamp(-20px, -1.7vw, -10px);
}

.hero-actions {
  position: relative;
  top: 3.5rem;
  z-index: 3;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 1.5rem;
  pointer-events: none;
  visibility: hidden;
  animation: actions-in 0.9s ease forwards 31.4s;
}

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(32, 28, 24, 0.32);
  border-radius: 6px;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 0.96rem;
  font-weight: 700;
  line-height: 1.15;
  padding: 0.82rem 1.05rem;
  text-align: center;
  text-decoration: none;
  transition: background-color 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.button:hover,
.button:focus-visible {
  border-color: rgba(32, 28, 24, 0.55);
  background: var(--paper);
  transform: translateY(-1px);
}

.button:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

.home-page.intro-paused *,
.home-page.intro-paused *::before,
.home-page.intro-paused *::after {
  animation-play-state: paused !important;
}

.home-page.intro-skipped .site-top {
  color: var(--ink);
  text-shadow: none;
  animation: none;
}

.home-page.intro-skipped .opening {
  min-height: auto;
  background: var(--ivory);
  animation: none;
}

.home-page.intro-skipped .opening::before,
.home-page.intro-skipped .earth-sequence,
.home-page.intro-skipped .intro-journey {
  display: none;
}

.home-page.intro-skipped .opening::after {
  opacity: 1;
  animation: none;
}

.home-page.intro-skipped .phase,
.home-page.intro-skipped .sprout-stage {
  opacity: 1;
  transform: none;
  animation: none;
}

.home-page.intro-skipped .sprout-plant {
  transform: translateY(0) translateX(var(--sprout-x)) scale(var(--sprout-scale)) rotate(var(--sprout-rotate));
  animation: none;
}

.home-page.intro-skipped .hero-actions {
  pointer-events: auto;
  visibility: visible;
}

.button-primary {
  border-color: var(--sage);
  background: var(--sage);
  color: #fffaf0;
}

.button-primary:hover,
.button-primary:focus-visible {
  border-color: #405640;
  background: #405640;
}

.action-band,
.about-band,
.link-section,
.site-footer {
  padding-inline: clamp(1rem, 5vw, 4rem);
}

.action-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.4rem;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  padding-block: clamp(1.35rem, 4vw, 2rem);
}

.action-copy h2,
.about-band h2,
.link-section h2 {
  margin: 0;
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 500;
  line-height: 1.1;
}

.action-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: flex-end;
}

.book-reveal-band {
  min-height: 72svh;
  flex-direction: column;
  justify-content: center;
  padding-block: clamp(4rem, 11vw, 8rem);
  text-align: center;
}

.book-reveal-band .action-copy {
  width: min(780px, 100%);
}

.book-reveal-band .action-copy h2 {
  font-size: clamp(3rem, 8vw, 6.8rem);
  line-height: 0.96;
}

.book-reveal-copy {
  max-width: 650px;
  margin: 1.2rem auto 0;
  color: var(--muted);
  font-size: clamp(1.08rem, 2vw, 1.35rem);
  line-height: 1.6;
}

.book-reveal-credit {
  margin-top: 1rem;
  margin-bottom: 0;
}

.book-reveal-band .book-reveal-credit {
  font-size: clamp(1rem, 1.5vw, 1.2rem);
}

.book-reveal-band .action-list {
  justify-content: center;
  margin-top: clamp(1.5rem, 4vw, 2.4rem);
}

.about-band {
  background: var(--ivory);
  padding-block: clamp(3.5rem, 9vw, 6rem);
}

.feedback-band {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1.1fr);
  gap: clamp(2rem, 7vw, 6rem);
  align-items: start;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  padding: clamp(3.5rem, 8vw, 6.5rem) clamp(1rem, 7vw, 6rem);
}

.feedback-copy h2 {
  max-width: 700px;
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.7rem);
  font-weight: 500;
  line-height: 1.03;
}

.feedback-copy > p:last-child {
  max-width: 620px;
  margin: 1.25rem 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.7vw, 1.22rem);
  line-height: 1.6;
}

.feedback-form {
  display: grid;
  gap: 0.7rem;
  width: min(100%, 650px);
  padding: clamp(1.25rem, 3vw, 2rem);
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--ivory);
}

.feedback-form label {
  color: var(--ink);
  font-family: var(--sans);
  font-size: 0.95rem;
  font-weight: 700;
}

.feedback-form label span {
  color: var(--muted);
  font-weight: 400;
}

.feedback-form input,
.feedback-form textarea {
  width: 100%;
  border: 1px solid rgba(32, 28, 24, 0.42);
  border-radius: 6px;
  background: var(--paper);
  color: var(--ink);
  font: 1rem/1.45 var(--sans);
  padding: 0.8rem 0.9rem;
}

.feedback-form input {
  min-height: 46px;
  margin-bottom: 0.55rem;
}

.feedback-form textarea {
  min-height: 140px;
  resize: vertical;
}

.feedback-form input:focus-visible,
.feedback-form textarea:focus-visible {
  border-color: var(--focus);
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

.feedback-form .button {
  width: max-content;
  margin-top: 0.6rem;
}

.feedback-form .button:disabled {
  cursor: wait;
  opacity: 0.72;
  transform: none;
}

.feedback-honeypot {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.feedback-status {
  margin: 0.15rem 0 0;
  color: var(--muted);
  font-family: var(--sans);
  font-size: 0.86rem;
  line-height: 1.45;
}

.feedback-status.is-success {
  color: #405640;
  font-weight: 700;
}

.feedback-status.is-error {
  color: #8a352b;
  font-weight: 700;
}

.section-measure {
  width: min(850px, 100%);
  margin-inline: auto;
}

.about-band p {
  margin: 1.15rem 0 0;
  max-width: 720px;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.28rem);
  line-height: 1.65;
}

.youtube-status {
  margin-top: 1.75rem;
}

.theme-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 1.7rem 0 0;
  padding: 0;
  font-family: var(--sans);
  list-style: none;
}

.theme-list li {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 250, 240, 0.62);
  color: var(--muted);
  padding: 0.55rem 0.78rem;
}

.link-section {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.3rem;
  border-top: 1px solid var(--line);
  background: var(--paper);
  padding-block: clamp(2.2rem, 6vw, 4rem);
}

.translation-section {
  background: var(--ivory-deep);
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.8rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--sans);
  font-size: 0.88rem;
  padding-block: 1.3rem;
}

.site-footer p {
  margin: 0;
}

.reader-page {
  background: var(--paper);
}

html.reader-embedded,
html.reader-embedded body {
  height: 100%;
  overflow: hidden;
}

html.reader-embedded .reader-scroll-shell {
  position: fixed;
  inset: 0;
  width: 100%;
  height: auto;
  overflow-x: hidden;
  overflow-y: scroll;
  overscroll-behavior-y: auto;
  padding-bottom: calc(16rem + env(safe-area-inset-bottom));
  scroll-padding-bottom: calc(16rem + env(safe-area-inset-bottom));
  scrollbar-gutter: stable;
  touch-action: pan-y;
  -webkit-overflow-scrolling: touch;
}

html.embedded-view .page-scroll-shell:focus-visible,
html.reader-embedded .reader-scroll-shell:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: -3px;
}

.coming-soon-page {
  background: var(--ivory);
}

.reader-top {
  position: sticky;
  top: 0;
  z-index: 5;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 250, 240, 0.94);
  backdrop-filter: blur(10px);
}

.coming-top {
  position: sticky;
}

.soon-hero {
  position: relative;
  display: grid;
  min-height: min(780px, 92svh);
  place-items: center;
  overflow: hidden;
  padding: clamp(5.5rem, 12vh, 9rem) clamp(1rem, 5vw, 4rem) clamp(13rem, 25vh, 18rem);
  text-align: center;
}

.soon-hero-art {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.soon-ground,
.soon-ground img {
  width: 100%;
  height: 100%;
}

.soon-ground img {
  object-fit: cover;
  filter: saturate(0.82) brightness(1.05);
}

.soon-wash {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(246, 239, 225, 0.93), rgba(246, 239, 225, 0.72) 44%, rgba(246, 239, 225, 0.96)),
    radial-gradient(circle at 50% 64%, rgba(255, 250, 240, 0.18), transparent 44%);
}

.soon-sprouts {
  position: absolute;
  left: 50%;
  bottom: clamp(1rem, 4vh, 2.2rem);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  transform: translateX(-50%);
}

.soon-sprout img {
  width: clamp(116px, 14vw, 178px);
  max-width: none;
  filter: drop-shadow(0 22px 22px rgba(42, 43, 31, 0.18));
}

.soon-sprout-small {
  margin-right: clamp(-26px, -2vw, -14px);
  transform: rotate(-2deg);
}

.soon-sprout-small img {
  width: clamp(96px, 11vw, 145px);
}

.soon-sprout-tall {
  transform: rotate(1.5deg);
}

.soon-hero-content {
  position: relative;
  z-index: 1;
  width: min(850px, 100%);
}

.soon-hero h1 {
  margin: 0.55rem 0 0;
  font-size: clamp(3.4rem, 10vw, 8rem);
  font-weight: 500;
  line-height: 0.94;
}

.soon-credit {
  margin: 0.9rem 0 0;
  color: var(--muted);
  font-family: var(--sans);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
}

.soon-lede {
  max-width: 680px;
  margin: 1.2rem auto 0;
  color: var(--muted);
  font-size: clamp(1.2rem, 2.4vw, 1.72rem);
  line-height: 1.45;
}

.soon-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 1.8rem;
}

.soon-band {
  padding: clamp(3rem, 8vw, 6rem) clamp(1rem, 5vw, 4rem);
}

.soon-band .section-measure {
  text-align: center;
}

.soon-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1rem, 2vw, 1.35rem);
  width: min(1120px, 100%);
  margin: 2rem auto 0;
}

.soon-item {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 250, 240, 0.66);
  padding: clamp(1.2rem, 2vw, 1.6rem);
}

.soon-status {
  margin: 0;
  color: var(--clay);
  font-family: var(--sans);
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
}

.soon-item h3 {
  margin: 0.7rem 0 0;
  font-size: 1.55rem;
  font-weight: 500;
}

.soon-item p:not(.soon-status) {
  min-height: 4.6rem;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.55;
}

.button-disabled,
.soon-disabled {
  cursor: default;
  opacity: 0.68;
  pointer-events: none;
  user-select: none;
}

.button-disabled:hover,
.button-disabled:focus-visible,
.soon-disabled:hover,
.soon-disabled:focus-visible {
  border-color: var(--sage);
  background: var(--sage);
  transform: none;
}

.soon-question-band {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(260px, 0.7fr);
  gap: clamp(1.5rem, 5vw, 4rem);
  align-items: center;
  padding: clamp(3rem, 8vw, 6rem) clamp(1rem, 5vw, 4rem);
  background: var(--ivory-deep);
}

.soon-question-band h2 {
  display: grid;
  gap: 0.08em;
  margin: 0.5rem 0 0;
  font-size: clamp(2.1rem, 5vw, 4.3rem);
  font-weight: 500;
  line-height: 1;
}

.soon-question-band p:not(.section-kicker) {
  color: var(--muted);
  font-size: clamp(1.02rem, 1.8vw, 1.22rem);
  line-height: 1.65;
}

.coming-footer {
  padding-inline: clamp(1rem, 5vw, 4rem);
}

.reader-layout {
  display: grid;
  grid-template-columns: minmax(160px, 230px) minmax(0, 760px);
  gap: clamp(2rem, 6vw, 5rem);
  justify-content: center;
  padding: clamp(2rem, 6vw, 5rem) clamp(1rem, 5vw, 4rem) clamp(4rem, 8vw, 6rem);
}

.chapter-nav {
  position: sticky;
  top: 6rem;
  align-self: start;
  border-left: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--sans);
  padding-left: 1rem;
}

.chapter-nav a {
  display: block;
  margin-top: 0.75rem;
  text-decoration: none;
}

.chapter-nav a:hover,
.chapter-nav a:focus-visible {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 0.22em;
}

.book-text {
  min-width: 0;
}

.book-section {
  border-bottom: 1px solid var(--line);
  padding-bottom: clamp(2.3rem, 6vw, 4.2rem);
}

.book-section + .book-section {
  padding-top: clamp(2.3rem, 6vw, 4.2rem);
}

.book-section h1,
.book-section h2 {
  margin: 0;
  font-weight: 500;
  letter-spacing: 0;
  line-height: 1.06;
}

.book-section h1 {
  font-size: clamp(2.6rem, 7vw, 5rem);
}

.book-section h2 {
  font-size: clamp(1.9rem, 5vw, 3.1rem);
}

.book-section p {
  margin: 1.1rem 0 0;
  color: var(--ink);
  font-size: clamp(1.1rem, 2vw, 1.32rem);
  line-height: 1.74;
}

.book-section .lead-line {
  color: var(--blue-gray);
  font-size: clamp(1.35rem, 3vw, 2rem);
  line-height: 1.35;
}

.reader-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding-top: clamp(2rem, 6vw, 4rem);
}

/* Protected, page-by-page book reader */
.protected-reader {
  display: grid;
  grid-template-columns: minmax(230px, 290px) minmax(0, 1050px);
  gap: clamp(1.25rem, 3.5vw, 3.25rem);
  align-items: start;
  width: min(1480px, 100%);
  margin: 0 auto;
  padding: clamp(1.25rem, 3vw, 2.5rem) clamp(1rem, 3vw, 2.5rem) clamp(4rem, 7vw, 6rem);
}

.reader-chapters {
  position: sticky;
  top: 6.1rem;
  max-height: calc(100svh - 7.4rem);
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 250, 240, 0.96);
  box-shadow: 0 14px 38px rgba(44, 37, 30, 0.07);
}

.reader-chapters-heading {
  border-bottom: 1px solid var(--line);
  padding: 1.15rem 1.2rem 1rem;
}

.reader-chapters-heading p,
.reader-chapters-heading h1 {
  margin: 0;
}

.reader-chapters-heading h1 {
  margin-top: 0.25rem;
  font-size: 1.65rem;
  font-weight: 500;
}

.chapter-select-label,
.chapter-select {
  display: none;
}

.chapter-list {
  max-height: calc(100svh - 13.5rem);
  overflow-y: auto;
  padding: 0.55rem;
  scrollbar-color: var(--soft) transparent;
  scrollbar-width: thin;
}

.chapter-jump {
  display: block;
  width: 100%;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-family: var(--sans);
  font-size: 0.82rem;
  line-height: 1.35;
  padding: 0.55rem 0.7rem;
  text-align: left;
}

.chapter-jump:hover,
.chapter-jump:focus-visible {
  background: var(--ivory-deep);
  color: var(--ink);
}

.chapter-jump[aria-current="page"] {
  background: var(--sage);
  color: #fff;
  font-weight: 700;
}

.chapter-jump.chapter-part {
  margin-top: 0.45rem;
  color: var(--clay);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.chapter-jump.chapter-part[aria-current="page"] {
  color: #fff;
}

.reader-workspace {
  min-width: 0;
}

.reader-toolbar {
  position: sticky;
  top: 5.9rem;
  z-index: 4;
  display: flex;
  gap: 0.55rem;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 250, 240, 0.97);
  box-shadow: 0 12px 30px rgba(44, 37, 30, 0.09);
  padding: 0.65rem;
}

.reader-control {
  min-height: 44px;
  border: 1px solid rgba(32, 28, 24, 0.28);
  border-radius: 7px;
  background: var(--paper);
  color: var(--ink);
  cursor: pointer;
  font-family: var(--sans);
  font-size: 0.86rem;
  font-weight: 700;
  padding: 0.6rem 0.85rem;
}

.reader-toolbar-chapter {
  display: none;
}

.reader-toolbar-view-switch,
.reader-toolbar-view {
  display: none;
}

.reader-control:hover:not(:disabled),
.reader-control:focus-visible {
  border-color: var(--sage);
  background: var(--ivory-deep);
}

.reader-control:disabled {
  cursor: default;
  opacity: 0.42;
}

.icon-control {
  min-width: 44px;
  padding-inline: 0.65rem;
  font-size: 1.15rem;
}

.page-position,
.reader-zoom {
  display: flex;
  gap: 0.42rem;
  align-items: center;
  color: var(--muted);
  font-family: var(--sans);
  font-size: 0.82rem;
  white-space: nowrap;
}

.page-position {
  padding-inline: 0.35rem;
}

.page-position input {
  width: 4.2rem;
  min-height: 42px;
  border: 1px solid rgba(32, 28, 24, 0.28);
  border-radius: 7px;
  background: #fff;
  color: var(--ink);
  font: 700 0.9rem var(--sans);
  padding: 0.45rem;
  text-align: center;
}

.reader-zoom {
  border-left: 1px solid var(--line);
  margin-left: 0.2rem;
  padding-left: 0.75rem;
}

.reader-zoom output {
  width: 3.3rem;
  text-align: center;
}

.reader-magnify {
  display: flex;
  gap: 0.42rem;
  align-items: center;
}

.reader-status-row {
  display: flex;
  gap: 1rem;
  align-items: end;
  justify-content: space-between;
  padding: 1.35rem 0 0.85rem;
}

.reader-section-name,
.reader-protection-note,
.reader-help,
.reader-announcement,
.accessible-text-note {
  color: var(--muted);
  font-family: var(--sans);
}

.reader-section-name {
  margin: 0;
  color: var(--clay);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.reader-status-row h2 {
  margin: 0.2rem 0 0;
  font-size: clamp(1.7rem, 3vw, 2.45rem);
  font-weight: 500;
}

.reader-protection-note {
  margin: 0 0 0.2rem;
  font-size: 0.76rem;
  text-align: right;
}

.reader-view-options {
  display: grid;
  justify-items: end;
  gap: 0.55rem;
}

.reader-view-switch {
  display: inline-flex;
  border: 1px solid rgba(32, 28, 24, 0.28);
  border-radius: 8px;
  background: var(--paper);
  padding: 3px;
}

.view-option {
  min-height: 38px;
  border: 0;
  border-radius: 5px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font: 700 0.8rem var(--sans);
  padding: 0.45rem 0.75rem;
}

.view-option:hover,
.view-option:focus-visible {
  color: var(--ink);
}

.view-option[aria-pressed="true"] {
  background: var(--sage);
  color: #fff;
}

.page-viewport {
  position: relative;
  overflow: auto;
  min-height: 50svh;
  border: 1px solid rgba(32, 28, 24, 0.17);
  border-radius: 12px;
  background: #d9d1c4;
  overscroll-behavior: contain;
  padding: clamp(0.55rem, 2vw, 1.35rem);
  text-align: center;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
}

.reader-canvas {
  display: block;
  width: calc(min(100%, 760px) * var(--reader-zoom, 1));
  max-width: none;
  height: auto;
  margin: 0 auto;
  background: #fff;
  box-shadow: 0 15px 42px rgba(36, 29, 23, 0.23);
}

.reader-canvas:focus-visible {
  outline: 4px solid var(--focus);
  outline-offset: 4px;
}

.page-loading {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 2;
  transform: translate(-50%, -50%);
  border-radius: 999px;
  background: var(--paper);
  color: var(--ink);
  font: 700 0.86rem var(--sans);
  padding: 0.75rem 1rem;
  box-shadow: 0 8px 30px rgba(36, 29, 23, 0.14);
}

.reader-help {
  margin: 0.85rem 0 0;
  font-size: 0.82rem;
  line-height: 1.5;
  text-align: center;
}

.reader-announcement {
  min-height: 1px;
  margin: 0;
  font-size: 0;
}

.accessible-page-text {
  max-width: 72ch;
  white-space: pre-wrap;
  font-size: 1.12rem;
  line-height: 1.7;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
}

.reader-text-view {
  min-height: 54svh;
  border: 1px solid rgba(32, 28, 24, 0.17);
  border-radius: 12px;
  background: #fffefa;
  box-shadow: 0 15px 42px rgba(36, 29, 23, 0.1);
  padding: clamp(1.5rem, 5vw, 4rem);
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
}

.reader-text-view[hidden],
.page-viewport[hidden] {
  display: none;
}

.reader-text-loading {
  color: var(--muted);
  font: 700 0.86rem var(--sans);
}

@media print {
  .reader-page * {
    display: none !important;
  }

  .reader-page::before {
    display: block;
    content: "Printing is not available for the free online edition.";
    font: 18px Arial, sans-serif;
    padding: 2rem;
  }
}

@media (max-width: 880px) {
  .protected-reader {
    display: block;
  }

  .reader-chapters {
    display: none;
  }

  .chapter-list {
    display: none;
  }

  .reader-toolbar {
    flex-wrap: wrap;
    top: 0.5rem;
  }

  .reader-toolbar-chapter {
    display: flex;
    flex: 1 0 100%;
    gap: 0.55rem;
    align-items: center;
    color: var(--muted);
    font: 700 0.78rem var(--sans);
  }

  .reader-toolbar-chapter select {
    min-width: 0;
    min-height: 44px;
    flex: 1;
    border: 1px solid rgba(32, 28, 24, 0.3);
    border-radius: 7px;
    background: #fff;
    color: var(--ink);
    font: 600 0.88rem var(--sans);
    padding: 0.55rem;
  }
}

@media (max-width: 600px) {
  html.reader-embedded .reader-scroll-shell {
    padding-top: calc(6.5rem + env(safe-area-inset-top));
    scroll-padding-top: calc(6.5rem + env(safe-area-inset-top));
  }

  .reader-top {
    position: static;
  }

  .reader-top .top-nav a:last-child {
    display: none;
  }

  .protected-reader {
    padding-inline: 0.65rem;
  }

  .reader-toolbar {
    display: grid;
    grid-template-columns: 44px minmax(0, 1fr) 44px;
    gap: 0.5rem;
  }

  .reader-control {
    min-width: 44px;
    padding-inline: 0.35rem;
  }

  .reader-toolbar-chapter {
    grid-column: 1 / -1;
    grid-row: 1;
  }

  #previous-page {
    grid-column: 1;
    grid-row: 2;
  }

  #next-page {
    grid-column: 3;
    grid-row: 2;
  }

  #previous-page span,
  #next-page span {
    display: none;
  }

  .page-position {
    grid-column: 2;
    grid-row: 2;
    justify-content: center;
    padding-inline: 0;
  }

  .page-position input {
    width: 3.7rem;
  }

  .reader-zoom {
    grid-column: 1 / -1;
    grid-row: 3;
    display: flex;
    gap: 0.5rem;
    align-items: center;
    justify-content: center;
    border-top: 1px solid var(--line);
    border-left: 0;
    margin: 0.1rem 0 0;
    padding: 0.55rem 0 0;
  }

  .reader-zoom .reader-control {
    flex: 0 0 44px;
  }

  .reader-toolbar-view-switch {
    display: inline-flex;
    min-width: 116px;
    min-height: 50px;
    border: 1px solid rgba(32, 28, 24, 0.35);
    border-radius: 8px;
    background: var(--paper);
    padding: 3px;
  }

  .reader-toolbar-view {
    display: block;
    flex: 1;
    width: auto;
    min-width: 0;
    min-height: 44px;
    padding-inline: 0.35rem;
  }

  .reader-toolbar-view + .reader-toolbar-view {
    border-left: 1px solid var(--line);
  }

  .reader-magnify {
    display: grid;
    grid-template-columns: 44px 3.2rem 44px;
    gap: 0.25rem;
    min-height: 50px;
    border: 1px solid rgba(32, 28, 24, 0.35);
    border-radius: 8px;
    background: var(--paper);
    padding: 3px;
  }

  .reader-status-row {
    display: block;
  }

  .reader-protection-note {
    margin-top: 0.55rem;
    text-align: left;
  }

  .reader-view-options {
    justify-items: start;
    margin-top: 0.8rem;
  }

  .reader-view-switch,
  .view-option {
    width: 100%;
  }

  .reader-status-row .reader-view-switch {
    display: none;
  }

  .view-option {
    min-height: 44px;
  }

  .page-viewport {
    padding: 0.35rem;
  }

  .reader-canvas {
    width: calc(100% * var(--reader-zoom, 1));
  }

  .reader-text-view {
    min-height: 45svh;
    padding: 1.35rem 1.1rem 2rem;
  }

.reader-text-view .accessible-page-text {
    max-width: none;
    font-size: calc(clamp(1.14rem, 5vw, 1.3rem) * var(--reader-text-scale, 1));
    line-height: 1.72;
  }
}

@keyframes quiet-in {
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0) scale3d(1, 1, 1);
  }
}

@keyframes title-leave {
  to {
    opacity: 0;
    transform: translate3d(0, 0, 0) scale3d(1.015, 1.015, 1);
  }
}

@keyframes question-approach {
  0% {
    opacity: 0;
    transform: translate3d(0, 0, 0) scale3d(0.96, 0.96, 1);
  }

  10% {
    opacity: 0.08;
    transform: translate3d(0, 0, 0) scale3d(0.964, 0.964, 1);
  }

  24% {
    opacity: 0.32;
    transform: translate3d(0, 0, 0) scale3d(0.974, 0.974, 1);
  }

  38% {
    opacity: 0.72;
    transform: translate3d(0, 0, 0) scale3d(0.989, 0.989, 1);
  }

  46% {
    opacity: 1;
    transform: translate3d(0, 0, 0) scale3d(1, 1, 1);
  }

  68% {
    opacity: 1;
    transform: translate3d(0, 0, 0) scale3d(1, 1, 1);
    animation-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
  }

  86% {
    opacity: 0.34;
    transform: translate3d(0, 0, 0) scale3d(1.012, 1.012, 1);
  }

  100% {
    opacity: 0;
    transform: translate3d(0, 0, 0) scale3d(1.022, 1.022, 1);
  }
}

@keyframes stars-drift {
  to {
    transform: translate3d(-30px, 18px, 0);
  }
}

@keyframes world-spin {
  to {
    background-position: var(--spin-end) center;
  }
}

@keyframes globe-surface-soften {
  to {
    filter: saturate(0.68) brightness(1.08) blur(5px);
  }
}

@keyframes globe-approach {
  0% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.64);
  }

  8% {
    opacity: 1;
    transform: translate(-50%, -50%) scale(0.76);
  }

  46% {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1.02);
  }

  68% {
    opacity: 1;
    transform: translate(-50%, -51%) scale(1.54);
  }

  86% {
    opacity: 0.74;
    transform: translate(-50%, -52%) scale(3.25);
  }

  100% {
    opacity: 0;
    transform: translate(-50%, -54%) scale(8.1);
  }
}

@keyframes landing-arrive {
  0%,
  39% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.55);
  }

  47%,
  70% {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
  }

  88% {
    opacity: 0.8;
    transform: translate(-50%, -50%) scale(2.4);
  }

  100% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(5);
  }
}

@keyframes atmosphere-phase {
  0% {
    filter: blur(14px) saturate(0.8);
    opacity: 0;
    transform: scale(1.06);
  }

  26% {
    filter: blur(3px) saturate(0.92);
    opacity: 0.78;
  }

  58% {
    filter: blur(0) saturate(0.96);
    opacity: 0.96;
    transform: scale(1.16);
  }

  100% {
    filter: blur(8px) saturate(0.8);
    opacity: 0;
    transform: scale(1.34);
  }
}

@keyframes forest-phase {
  0% {
    filter: blur(12px) saturate(0.78);
    opacity: 0;
    transform: scale(1.08);
  }

  28% {
    filter: blur(2px) saturate(0.9);
    opacity: 0.82;
  }

  62% {
    filter: blur(0) saturate(0.94);
    opacity: 0.96;
    transform: scale(1.18);
  }

  100% {
    filter: blur(7px) saturate(0.75);
    opacity: 0;
    transform: scale(1.38);
  }
}

@keyframes ground-arrival {
  0% {
    filter: blur(12px) saturate(0.85);
    opacity: 0;
    transform: scale(1.08);
  }

  26% {
    filter: blur(4px) saturate(0.92);
    opacity: 0.68;
  }

  58% {
    filter: blur(0) saturate(0.95);
    opacity: 0.95;
    transform: scale(1.22);
  }

  100% {
    filter: blur(1px) saturate(0.72);
    opacity: 0.28;
    transform: scale(1.42);
  }
}

@keyframes earth-layer-fade {
  to {
    opacity: 0;
  }
}

@keyframes micro-field {
  to {
    opacity: 1;
  }
}

@keyframes opening-warm {
  to {
    background: var(--ivory);
  }
}

@keyframes landing-background-in {
  to {
    opacity: 1;
  }
}

@keyframes nav-to-ink {
  to {
    color: var(--ink);
    text-shadow: none;
  }
}

@keyframes intro-scrim-away {
  to {
    opacity: 0;
  }
}

@keyframes sprout-visible {
  to {
    opacity: 1;
  }
}

@keyframes sprout-rise {
  to {
    transform: translateY(0) translateX(var(--sprout-x)) scale(var(--sprout-scale)) rotate(var(--sprout-rotate));
  }
}

@keyframes actions-in {
  99% {
    pointer-events: none;
    visibility: hidden;
  }

  to {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
    visibility: visible;
  }
}

@media (max-width: 760px) {
  .site-top,
  .reader-top,
  .action-band,
  .link-section,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .top-nav {
    flex-wrap: wrap;
  }

  .opening {
    min-height: 100svh;
  }

  .opening-inner {
    min-height: clamp(560px, 76svh, 720px);
  }

  .question-flight {
    min-height: clamp(110px, 18vh, 150px);
  }

  .question-flight p {
    font-size: clamp(1.5rem, 9vw, 3.4rem);
  }

  .action-list {
    width: 100%;
    justify-content: stretch;
  }

  .book-reveal-band {
    align-items: center;
    text-align: center;
  }

  .feedback-band {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .feedback-form {
    width: 100%;
  }

  .feedback-form .button {
    width: 100%;
  }

  .button {
    flex: 1 1 180px;
  }

  .reader-layout {
    display: block;
  }

  .chapter-nav {
    position: static;
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    border-left: 0;
    border-bottom: 1px solid var(--line);
    margin-bottom: 2rem;
    padding: 0 0 1rem;
  }

  .chapter-nav .section-kicker {
    flex-basis: 100%;
  }

  .chapter-nav a {
    margin-top: 0;
  }

  .soon-hero {
    min-height: 720px;
    padding-bottom: 13rem;
  }

  .soon-grid,
  .soon-question-band {
    grid-template-columns: 1fr;
  }

  .soon-buttons {
    flex-direction: column;
  }

  .soon-buttons .button,
  .soon-item .button {
    width: 100%;
  }
}

@media (max-width: 520px) {
  .site-top {
    gap: 0.45rem;
    padding: 0.85rem 1rem;
    font-size: 0.78rem;
  }

  .brand-link {
    font-size: 0.86rem;
  }

  .top-nav {
    gap: 0.55rem 0.85rem;
    font-size: 0.78rem;
  }

  .opening {
    min-height: 100svh;
    padding: 4.45rem 1rem 1.3rem;
  }

  .opening::after {
    background-image:
      linear-gradient(
        180deg,
        rgba(246, 239, 225, 0.82) 0%,
        rgba(246, 239, 225, 0.68) 38%,
        rgba(246, 239, 225, 0.32) 68%,
        rgba(246, 239, 225, 0.42) 100%
      ),
      url("assets/landing-background-v2.webp");
    background-position: center center;
  }

  .globe-journey {
    top: 48%;
    width: min(128vw, 520px);
    filter: drop-shadow(0 22px 54px rgba(0, 0, 0, 0.44));
  }

  .opening-inner {
    width: 100%;
    min-height: min(700px, calc(100svh - 5.75rem));
  }

  .intro-journey,
  .final-arrival {
    width: min(100%, 350px);
    margin-inline: auto;
  }

  .book-credit,
  .section-kicker {
    font-size: 0.7rem;
  }

  .disturbance {
    width: min(100%, 21rem);
    max-width: 21rem;
    margin-top: 0;
    font-size: 2.1rem;
    line-height: 1.1;
  }

  .question-flight {
    min-height: 8.5rem;
  }

  .question-flight p {
    width: min(100%, 21rem);
    margin-inline: auto;
    padding-inline: 0.25rem;
    font-size: 2.1rem;
    line-height: 1.1;
  }

  .question-flight .reflection-line {
    width: min(100%, 22rem);
    padding-inline: 0;
    font-size: 2.2rem;
    line-height: 1.1;
  }

  .question-flight .mid-central-question {
    gap: 0.04em;
    font-size: 2.55rem;
    line-height: 1;
  }

  .landing-title h1 {
    font-size: 3.15rem;
  }

  .landing-title .book-credit {
    margin-top: 0.75rem;
  }

  .description-copy {
    max-width: 20rem;
    margin-top: 1.1rem;
    font-size: 0.95rem;
    line-height: 1.4;
  }

  .sprout-stage {
    height: 205px;
    margin-top: 0.25rem;
    padding-bottom: 0;
  }

  .sprout-pair {
    width: 270px;
    transform: translateY(-10px);
  }

  .sprout-plant img {
    width: 140px;
  }

  .sprout-plant-short {
    --sprout-scale: 0.82;
    margin-right: -24px;
  }

  .sprout-plant-tall {
    --sprout-scale: 1.02;
    margin-left: -18px;
  }

  .hero-actions {
    top: 1.5rem;
    gap: 0.5rem;
    margin-top: 1rem;
  }

  .button {
    width: 100%;
    min-height: 44px;
    flex: 1 1 100%;
    padding: 0.72rem 0.85rem;
    font-size: 0.9rem;
  }
}

@media (max-width: 380px) {
  .opening {
    padding-inline: 0.85rem;
  }

  .question-flight p {
    font-size: 1.9rem;
  }

  .disturbance {
    font-size: 1.9rem;
  }

  .question-flight .mid-central-question {
    font-size: 2.25rem;
  }

  .landing-title h1 {
    font-size: 2.75rem;
  }

  .sprout-stage {
    height: 148px;
  }
}

@media (max-width: 520px) and (max-height: 680px) {
  .opening {
    padding-top: 4rem;
    padding-bottom: 1rem;
  }

  .opening-inner {
    min-height: min(610px, calc(100svh - 5rem));
  }

  .question-flight .mid-central-question {
    font-size: 2.25rem;
  }

  .landing-title h1 {
    font-size: 2.5rem;
  }

  .description-copy {
    font-size: 0.86rem;
    line-height: 1.35;
  }

  .sprout-stage {
    height: 136px;
    margin-top: 0.55rem;
  }

  .sprout-pair {
    width: 188px;
    transform: none;
  }

  .sprout-plant img {
    width: 98px;
  }

}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-delay: 0ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  .phase,
  .question-flight p,
  .sprout-stage {
    opacity: 1;
    transform: none;
  }

  .earth-sequence,
  .intro-journey {
    display: none;
  }

  .opening {
    min-height: auto;
    background: var(--ivory);
  }

  .opening::after {
    opacity: 1;
  }

  .sprout-plant {
    transform: translateY(0) translateX(var(--sprout-x)) scale(var(--sprout-scale)) rotate(var(--sprout-rotate));
  }

  .hero-actions {
    pointer-events: auto;
    visibility: visible;
  }

  .intro-controls {
    display: none;
  }

}

/* Understand Suffering Is Common: interactive Chain */
.chain-page {
  background:
    radial-gradient(circle at 12% 8%, rgba(143, 85, 61, 0.08), transparent 28rem),
    var(--ivory);
}

.chain-page .page-scroll-shell {
  min-height: 100svh;
}

.chain-top {
  border-bottom: 1px solid var(--line);
  background: rgba(246, 239, 225, 0.96);
}

.chain-hero {
  display: grid;
  place-content: center;
  min-height: clamp(460px, 72svh, 760px);
  padding: clamp(4.5rem, 10vw, 8rem) clamp(1rem, 7vw, 6rem);
  text-align: center;
}

.chain-hero h1 {
  max-width: 920px;
  margin: 0.75rem auto 0;
  font-size: clamp(3rem, 8vw, 7rem);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 0.96;
}

.chain-hero > p:not(.section-kicker) {
  max-width: 720px;
  margin: 1.5rem auto 0;
  color: var(--muted);
  font-size: clamp(1.15rem, 2.2vw, 1.55rem);
  line-height: 1.55;
}

.chain-downlink {
  width: fit-content;
  min-height: 44px;
  margin: 2rem auto 0;
  color: var(--sage);
  font-family: var(--sans);
  font-size: 0.9rem;
  font-weight: 700;
  line-height: 44px;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.3em;
}

.chain-explorer {
  padding: clamp(3.5rem, 8vw, 7rem) clamp(1rem, 5vw, 4rem);
  border-block: 1px solid var(--line);
  background: rgba(255, 250, 240, 0.58);
}

.chain-heading,
.chain-card,
.coin-panel {
  width: min(1120px, 100%);
  margin-inline: auto;
}

.chain-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 2rem;
}

.chain-heading h2 {
  margin: 0.5rem 0 0;
  font-size: clamp(2.25rem, 5vw, 4.5rem);
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: 1;
}

.chain-heading div > p:last-child {
  max-width: 710px;
  margin: 1rem 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
  line-height: 1.55;
}

.chain-progress,
.chain-role {
  margin: 0;
  color: var(--muted);
  font-family: var(--sans);
  font-size: 0.88rem;
  font-weight: 700;
}

.chain-progress {
  flex: none;
  padding-bottom: 0.35rem;
}

.chain-scroll {
  width: min(1120px, 100%);
  margin: 2rem auto 0;
  overflow-x: auto;
  padding: 0.2rem 0.2rem 0.85rem;
  scrollbar-color: rgba(83, 109, 82, 0.55) transparent;
  -webkit-overflow-scrolling: touch;
}

.chain-terms {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  min-width: max-content;
}

.chain-term,
.chain-nav-button,
.coin-close {
  min-height: 44px;
  border: 1px solid rgba(83, 109, 82, 0.38);
  border-radius: 999px;
  background: var(--paper);
  color: var(--ink);
  cursor: pointer;
  font: 700 0.9rem/1 var(--sans);
  padding: 0.8rem 1rem;
}

.chain-term {
  transition: background-color 180ms ease, border-color 180ms ease, color 180ms ease;
}

.chain-term:hover,
.chain-term[aria-pressed="true"] {
  border-color: var(--sage);
  background: var(--sage);
  color: var(--paper);
}

.chain-term:focus-visible,
.chain-nav-button:focus-visible,
.coin-close:focus-visible,
.chain-downlink:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.chain-arrow {
  color: var(--soft);
  font-family: var(--sans);
}

.chain-card,
.coin-panel {
  margin-top: 1.35rem;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--paper);
  box-shadow: 0 24px 65px rgba(59, 44, 29, 0.07);
  padding: clamp(1.35rem, 4vw, 3rem);
}

.chain-card-top,
.coin-top {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1.5rem;
}

.chain-card h2,
.coin-panel h2 {
  margin: 0.25rem 0 0;
  font-size: clamp(2.5rem, 5vw, 4.6rem);
  font-weight: 500;
  line-height: 1;
}

.chain-role {
  max-width: 320px;
  text-align: right;
}

.chain-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1.5rem, 4vw, 3rem);
  margin-top: 2.25rem;
}

.chain-span {
  grid-column: 1 / -1;
}

.chain-section h3,
.chain-related h3 {
  margin: 0 0 0.65rem;
  font: 700 0.9rem/1.3 var(--sans);
}

.chain-section p,
.chain-related p,
.coin-panel p {
  margin: 0;
  font-size: clamp(1.05rem, 1.7vw, 1.2rem);
  line-height: 1.65;
}

.chain-section p + p {
  margin-top: 0.8rem;
}

.chain-divider {
  border-top: 1px solid var(--line);
  padding-top: 1.5rem;
}

.chain-example,
.chain-related-panel,
.coin-edge {
  border-radius: 12px;
  background: var(--ivory-deep);
  padding: clamp(1.1rem, 2.5vw, 1.6rem);
}

.chain-quote {
  margin: 2rem 0 0;
  border-left: 3px solid var(--clay);
  padding: 0.25rem 0 0.25rem clamp(1rem, 2vw, 1.5rem);
}

.chain-quote > p:nth-child(2) {
  max-width: 840px;
  margin: 0.65rem 0 0;
  font-size: clamp(1.35rem, 2.6vw, 2rem);
  font-weight: 500;
  line-height: 1.35;
}

.chain-quote footer {
  margin-top: 0.65rem;
  color: var(--muted);
  font: 0.85rem/1.4 var(--sans);
}

.chain-related {
  margin-top: 1.5rem;
}

.chain-related[hidden],
.coin-panel[hidden] {
  display: none;
}

.chain-related h3 {
  margin-top: 0.55rem;
  font-size: 1.1rem;
}

.chain-related .chain-related-emphasis {
  margin-top: 0.9rem;
  font-weight: 600;
}

.chain-related .chain-related-note,
.coin-note {
  margin-top: 0.8rem;
  color: var(--muted);
  font-family: var(--sans);
  font-size: 0.9rem;
}

.chain-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-top: 2rem;
  border-top: 1px solid var(--line);
  padding-top: 1.5rem;
}

.chain-nav-button {
  border-radius: 6px;
}

.chain-nav-primary {
  border-color: var(--sage);
  background: var(--sage);
  color: var(--paper);
}

.chain-nav-button:hover:not(:disabled),
.coin-close:hover {
  border-color: var(--clay);
}

.chain-nav-button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.coin-top {
  align-items: start;
}

.coin-panel h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
}

.coin-close {
  border-radius: 6px;
}

.coin-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1.75rem;
}

.coin-side {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: clamp(1.1rem, 2.5vw, 1.6rem);
}

.coin-side > p:last-child,
.coin-edge > p:last-child {
  margin-top: 0.55rem;
}

.coin-edge {
  margin-top: 1rem;
}

.chain-closing {
  padding: clamp(4rem, 10vw, 8rem) clamp(1rem, 7vw, 6rem);
  text-align: center;
}

.chain-closing h2 {
  display: grid;
  gap: 0.06em;
  margin: 0.65rem auto 0;
  font-size: clamp(2.75rem, 7vw, 6.5rem);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 0.98;
}

.chain-closing > p:not(.section-kicker) {
  max-width: 680px;
  margin: 1.5rem auto 0;
  color: var(--muted);
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  line-height: 1.6;
}

.chain-closing-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 2rem;
}

@media (max-width: 720px) {
  .chain-top {
    align-items: flex-start;
  }

  .chain-heading,
  .chain-card-top,
  .coin-top {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.85rem;
  }

  .chain-role {
    max-width: none;
    text-align: left;
  }

  .chain-grid,
  .coin-grid {
    grid-template-columns: 1fr;
  }

  .chain-span {
    grid-column: auto;
  }

  .chain-nav {
    align-items: stretch;
  }

  .chain-nav-button {
    flex: 1 1 50%;
  }

  .coin-close {
    align-self: flex-end;
    margin-top: -3.5rem;
  }
}

@media (max-width: 480px) {
  .chain-hero {
    min-height: 560px;
  }

  .chain-hero h1 {
    font-size: clamp(2.8rem, 14vw, 4.2rem);
  }

  .chain-explorer {
    padding-inline: 0.8rem;
  }

  .chain-card,
  .coin-panel {
    border-radius: 12px;
    padding: 1.15rem;
  }

  .chain-nav {
    flex-direction: column;
  }

  .chain-nav-button {
    width: 100%;
  }

  .chain-closing-actions .button {
    width: 100%;
  }
}

@media print {
  .chain-page .chain-top,
  .chain-downlink,
  .chain-scroll,
  .chain-nav,
  .coin-panel,
  .chain-closing-actions,
  .chain-page .site-footer {
    display: none !important;
  }

  .chain-hero {
    min-height: auto;
    padding: 1rem 0 2rem;
  }

  .chain-explorer,
  .chain-closing {
    border: 0;
    background: #fff;
    padding: 1rem 0;
  }

  .chain-card {
    border: 0;
    box-shadow: none;
    padding: 0;
  }
}