@import url("https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600&family=Newsreader:opsz,wght@6..72,400;6..72,500&display=swap");

:root {
  --ink: #10100f;
  --paper: #f3efe5;
  --paper-deep: #e8e1d4;
  --white: #fffdf8;
  --muted: #6c685f;
  --line: rgba(16, 16, 15, 0.2);
  --accent: #dc4b2f;
  --display: "Newsreader", Georgia, serif;
  --sans: "DM Sans", Arial, sans-serif;
  --page-pad: clamp(1.25rem, 4.2vw, 5rem);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 6.5rem;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  color: inherit;
  font: inherit;
}

a {
  color: inherit;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.75rem 1rem;
  color: var(--white);
  background: var(--accent);
  transform: translateY(-180%);
}

.skip-link:focus {
  transform: translateY(0);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.magicads {
  width: 100%;
  overflow: hidden;
}

.magicads:empty {
  display: none;
}

.site-header {
  position: fixed;
  z-index: 40;
  top: 0;
  left: 0;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  padding: 1.25rem var(--page-pad);
  border-bottom: 1px solid transparent;
  transition:
    transform 260ms ease,
    padding 260ms ease,
    background 260ms ease,
    border-color 260ms ease;
}

.site-header.is-compact {
  padding-block: 0.82rem;
  background: rgba(243, 239, 229, 0.92);
  border-color: var(--line);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}

.site-header.is-hidden {
  transform: translateY(-115%);
}

.header-progress {
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 2px;
  overflow: hidden;
}

.header-progress i {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
}

.wordmark {
  position: relative;
  display: inline-flex;
  width: fit-content;
  align-items: baseline;
  text-decoration: none;
  font-family: var(--display);
  font-size: 1.55rem;
  line-height: 1;
  letter-spacing: -0.055em;
}

.wordmark span:last-of-type {
  font-style: italic;
}

.wordmark i {
  width: 0.36rem;
  height: 0.36rem;
  margin-left: 0.3rem;
  border-radius: 50%;
  background: var(--accent);
}

.site-header nav {
  display: flex;
  gap: clamp(1.2rem, 3vw, 3rem);
}

.site-header nav a {
  position: relative;
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-decoration: none;
  text-transform: uppercase;
}

.site-header nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -0.35rem;
  left: 0;
  height: 1px;
  background: var(--ink);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}

.site-header nav a:hover::after,
.site-header nav a:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

.eyebrow,
.kicker,
.chapter-label,
.lens-label {
  margin: 0;
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

.hero {
  min-height: 100svh;
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(21rem, 0.55fr);
  border-bottom: 1px solid var(--ink);
}

.hero-copy {
  display: flex;
  min-width: 0;
  flex-direction: column;
  justify-content: flex-end;
  padding: clamp(9rem, 16vh, 12rem) var(--page-pad) clamp(4rem, 8vh, 7rem);
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: clamp(2rem, 5vh, 4rem);
}

.eyebrow span {
  display: grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  color: var(--paper);
  background: var(--ink);
  border-radius: 50%;
  font-size: 0.55rem;
  letter-spacing: 0.04em;
}

.hero h1 {
  max-width: 10.5ch;
  margin: 0;
  font-family: var(--display);
  font-size: clamp(4.4rem, 8.2vw, 8.9rem);
  font-weight: 400;
  letter-spacing: -0.067em;
  line-height: 0.82;
}

.hero h1 em,
.perspective h2 em,
.journey h2 em,
.compass h2 em,
.closing h2 em {
  font-weight: 400;
}

.hero-bottom {
  display: grid;
  grid-template-columns: minmax(0, 34rem) auto;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: end;
  margin-top: clamp(3rem, 7vh, 5rem);
}

.hero-intro {
  margin: 0;
  color: #34322e;
  font-family: var(--display);
  font-size: clamp(1.28rem, 1.7vw, 1.65rem);
  line-height: 1.34;
}

.primary-link {
  display: inline-flex;
  min-height: 3rem;
  align-items: center;
  justify-content: space-between;
  gap: 1.7rem;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--ink);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-decoration: none;
  text-transform: uppercase;
  white-space: nowrap;
}

.primary-link svg {
  width: 1.1rem;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.5;
  transition: transform 180ms ease;
}

.primary-link:hover svg,
.primary-link:focus-visible svg {
  transform: translateY(0.25rem);
}

.hero-index {
  position: relative;
  display: flex;
  min-width: 0;
  flex-direction: column;
  justify-content: center;
  padding: clamp(7rem, 12vh, 10rem) clamp(2rem, 3vw, 3.5rem) 3rem;
  color: var(--paper);
  background: var(--ink);
  overflow: hidden;
}

.hero-index-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding-bottom: 1.1rem;
  border-bottom: 1px solid rgba(243, 239, 229, 0.35);
}

.hero-index-head span {
  font-family: var(--display);
  font-size: 1.3rem;
}

.hero-index-head small,
.hero-index > p {
  color: rgba(243, 239, 229, 0.62);
  font-size: 0.57rem;
  font-weight: 600;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.hero-index-line {
  position: absolute;
  top: 14rem;
  bottom: 6.5rem;
  left: clamp(2rem, 3vw, 3.5rem);
  width: 2px;
  background: var(--paper);
}

.hero-index ol {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 0;
  margin: 1.3rem 0;
  padding: 0;
  list-style: none;
}

.hero-index li {
  margin: 0;
}

.hero-index button {
  width: 100%;
  min-height: 3.4rem;
  display: grid;
  grid-template-columns: 3.6rem 1fr;
  gap: 0.8rem;
  align-items: center;
  padding: 0.4rem 0 0.4rem 0.95rem;
  border: 0;
  color: inherit;
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.hero-index button span {
  position: relative;
  z-index: 2;
  display: grid;
  width: 2.8rem;
  height: 2.8rem;
  place-items: center;
  color: var(--paper);
  background: var(--ink);
  border: 1px solid rgba(243, 239, 229, 0.55);
  border-radius: 50%;
  font-family: var(--display);
  font-size: 1rem;
  font-variant-numeric: tabular-nums;
  transition: color 180ms ease, background 180ms ease, transform 180ms ease;
}

.hero-index button small {
  color: rgba(243, 239, 229, 0.68);
  font-size: 0.58rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: color 180ms ease;
}

.hero-index button:hover span,
.hero-index button:focus-visible span,
.hero-index button.is-active span {
  color: var(--ink);
  background: var(--paper);
  transform: scale(1.08);
}

.hero-index button:hover small,
.hero-index button:focus-visible small,
.hero-index button.is-active small {
  color: var(--paper);
}

.hero-index > p {
  max-width: 26ch;
  margin: auto 0 0;
  line-height: 1.6;
}

.section-meta {
  display: grid;
  grid-template-columns: auto minmax(2rem, 1fr) auto;
  gap: 0.8rem;
  align-items: center;
  color: var(--muted);
}

.section-meta span {
  font-family: var(--display);
  font-size: 1.1rem;
}

.section-meta i {
  height: 1px;
  background: currentColor;
  opacity: 0.35;
}

.section-meta small {
  font-size: 0.55rem;
  font-weight: 600;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.perspective {
  display: grid;
  grid-template-columns: minmax(0, 0.18fr) minmax(22rem, 0.72fr) minmax(28rem, 1fr);
  gap: clamp(2rem, 5vw, 6rem);
  padding: clamp(7rem, 11vw, 10rem) var(--page-pad);
  background: var(--white);
  border-bottom: 1px solid var(--ink);
}

.perspective .section-meta {
  align-self: start;
  grid-template-columns: auto 2rem;
}

.perspective .section-meta small {
  grid-column: 1 / -1;
}

.perspective-copy h2,
.compass-heading h2 {
  max-width: 12ch;
  margin: 1.3rem 0 1.7rem;
  font-family: var(--display);
  font-size: clamp(3.4rem, 5.8vw, 6.7rem);
  font-weight: 400;
  letter-spacing: -0.06em;
  line-height: 0.89;
}

.perspective-copy > p:last-child {
  max-width: 34rem;
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.75;
}

.perspective-panel {
  align-self: end;
}

.perspective-control {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: 1px solid var(--ink);
}

.perspective-control button {
  position: relative;
  min-height: 10rem;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  align-content: space-between;
  padding: 1.4rem;
  border: 0;
  background: transparent;
  text-align: left;
  cursor: pointer;
  transition: color 180ms ease, background 180ms ease;
}

.perspective-control button + button {
  border-left: 1px solid var(--ink);
}

.perspective-control button[aria-pressed="true"] {
  color: var(--paper);
  background: var(--ink);
}

.control-index {
  display: grid;
  width: 2.45rem;
  height: 2.45rem;
  place-items: center;
  border: 1px solid currentColor;
  border-radius: 50%;
  font-family: var(--display);
}

.perspective-control button > span:nth-child(2) {
  align-self: end;
}

.perspective-control strong,
.perspective-control small {
  display: block;
}

.perspective-control strong {
  font-family: var(--display);
  font-size: 1.85rem;
  font-weight: 400;
}

.perspective-control small {
  margin-top: 0.2rem;
  font-size: 0.57rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  opacity: 0.64;
  text-transform: uppercase;
}

.perspective-control button > i {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.2;
}

.perspective-control button[aria-pressed="true"] > i {
  background: var(--accent);
  opacity: 1;
}

.lens-status {
  display: grid;
  grid-template-columns: 7rem 1fr;
  gap: 0.4rem 1.3rem;
  padding: 1.2rem 0 0;
}

.lens-status span {
  font-size: 0.56rem;
  font-weight: 600;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.lens-status strong {
  font-family: var(--display);
  font-size: 1rem;
  font-weight: 500;
}

.lens-status p {
  grid-column: 2;
  max-width: 40rem;
  margin: 0;
  color: var(--muted);
  font-family: var(--display);
  font-size: 0.93rem;
  font-style: italic;
  line-height: 1.5;
}

.journey {
  position: relative;
  padding: clamp(7rem, 11vw, 11rem) var(--page-pad) 0;
}

.journey-heading {
  max-width: 88rem;
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(18rem, 0.6fr);
  gap: clamp(3rem, 8vw, 8rem);
  align-items: end;
  margin: 0 auto clamp(6rem, 11vw, 10rem);
}

.journey-heading h2 {
  max-width: 12ch;
  margin: 1.35rem 0 0;
  font-family: var(--display);
  font-size: clamp(4rem, 7vw, 8rem);
  font-weight: 400;
  letter-spacing: -0.065em;
  line-height: 0.86;
}

.journey-heading > p {
  max-width: 32rem;
  margin: 0;
  padding-bottom: 0.6rem;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.75;
}

.journey-status {
  position: sticky;
  z-index: 8;
  top: 6.5rem;
  width: 7rem;
  margin-left: auto;
  color: var(--muted);
  pointer-events: none;
}

.journey-status > span {
  display: block;
  font-size: 0.55rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.journey-status strong {
  display: block;
  margin-top: 0.15rem;
  color: var(--ink);
  font-family: var(--display);
  font-size: 2.6rem;
  font-weight: 400;
  line-height: 1;
}

.journey-status div {
  height: 2px;
  margin-top: 0.75rem;
  overflow: hidden;
  background: var(--line);
}

.journey-status i {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--accent);
  transform: scaleX(0.1);
  transform-origin: left;
  transition: transform 300ms ease;
}

.timeline {
  --rail-width: clamp(8rem, 15vw, 13rem);
  position: relative;
  max-width: 88rem;
  margin: -4.5rem auto 0;
  padding-bottom: clamp(7rem, 12vw, 12rem);
}

.timeline::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: calc(var(--rail-width) / 2);
  width: 3px;
  background: var(--ink);
  transform: translateX(-50%);
}

.timeline::after {
  content: "";
  position: absolute;
  bottom: -0.45rem;
  left: calc(var(--rail-width) / 2);
  width: 1rem;
  height: 1rem;
  background: var(--accent);
  border: 3px solid var(--paper);
  border-radius: 50%;
  box-shadow: 0 0 0 2px var(--ink);
  transform: translateX(-50%);
}

.milestone {
  position: relative;
  min-height: clamp(26rem, 48vh, 35rem);
  display: grid;
  grid-template-columns: var(--rail-width) minmax(0, 1fr);
  align-items: start;
  opacity: 0.48;
  transition: opacity 320ms ease;
}

.milestone.is-open {
  min-height: 0;
  padding-bottom: clamp(7rem, 11vw, 11rem);
}

.milestone.is-current,
.milestone:focus-within,
.milestone.is-open {
  opacity: 1;
}

.milestone-rail {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: center;
  padding-top: 0.9rem;
}

.age-marker {
  width: clamp(5rem, 7vw, 6.6rem);
  height: clamp(5rem, 7vw, 6.6rem);
  display: grid;
  place-items: center;
  padding: 0;
  border: 2px solid var(--ink);
  border-radius: 50%;
  background: var(--paper);
  cursor: pointer;
  transition: color 180ms ease, background 180ms ease, transform 180ms ease;
}

.age-marker span {
  font-family: var(--display);
  font-size: clamp(1.65rem, 2.3vw, 2.5rem);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.age-marker:hover,
.age-marker:focus-visible,
.milestone.is-open .age-marker {
  color: var(--paper);
  background: var(--ink);
  transform: scale(1.06);
  outline: none;
}

.milestone.is-open .age-marker {
  box-shadow: inset 0 0 0 0.35rem var(--ink), inset 0 0 0 0.42rem var(--paper);
}

.age-marker:focus-visible {
  box-shadow: 0 0 0 4px var(--paper), 0 0 0 7px var(--accent);
}

.milestone-copy {
  min-width: 0;
  padding: 1.2rem 0 0 clamp(1.5rem, 4vw, 4.5rem);
  border-top: 1px solid var(--ink);
}

.chapter-topline {
  display: flex;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
}

.chapter-label {
  color: var(--muted);
  line-height: 1.5;
}

.chapter-topline ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.45rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.chapter-topline li {
  padding: 0.3rem 0.55rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.52rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.milestone h3 {
  margin: clamp(1.2rem, 3vw, 2.2rem) 0 1.2rem;
  font-family: var(--display);
  font-size: clamp(4rem, 7vw, 8rem);
  font-weight: 400;
  letter-spacing: -0.065em;
  line-height: 0.84;
}

.chapter-summary {
  max-width: 47rem;
  margin: 0;
  color: #45423c;
  font-family: var(--display);
  font-size: clamp(1.25rem, 1.8vw, 1.65rem);
  line-height: 1.4;
}

.chapter-toggle {
  min-height: 3rem;
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  margin-top: 1.8rem;
  padding: 0.6rem 0;
  border: 0;
  border-bottom: 1px solid var(--ink);
  background: transparent;
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  cursor: pointer;
}

.chapter-toggle i {
  position: relative;
  width: 0.8rem;
  height: 0.8rem;
}

.chapter-toggle i::before,
.chapter-toggle i::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  width: 100%;
  height: 1px;
  background: currentColor;
  transition: transform 180ms ease;
}

.chapter-toggle i::after {
  transform: rotate(90deg);
}

.chapter-toggle[aria-expanded="true"] i::after {
  transform: rotate(0deg);
}

.manual {
  margin-top: 3.5rem;
  padding-top: 2.5rem;
  border-top: 3px solid var(--ink);
  animation: reveal 320ms ease both;
}

@keyframes reveal {
  from {
    opacity: 0;
    transform: translateY(0.8rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.manual-opening {
  display: grid;
  grid-template-columns: minmax(16rem, 0.9fr) minmax(18rem, 1.1fr);
  gap: clamp(2rem, 6vw, 6rem);
  align-items: end;
}

.manual-opening h4 {
  max-width: 12ch;
  margin: 1rem 0 0;
  font-family: var(--display);
  font-size: clamp(2.5rem, 4vw, 4.7rem);
  font-weight: 400;
  letter-spacing: -0.055em;
  line-height: 0.96;
}

.manual-opening > p {
  max-width: 38rem;
  margin: 0;
  color: var(--muted);
  font-size: 0.93rem;
  line-height: 1.75;
}

.manual-key {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 3rem;
  border: 1px solid var(--ink);
}

.manual-key > span {
  min-height: 5.3rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.2rem;
  color: var(--muted);
  font-size: 0.57rem;
  font-weight: 600;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.manual-key > span + span {
  border-left: 1px solid var(--ink);
}

.manual-key strong {
  color: var(--ink);
  font-family: var(--display);
  font-size: 2rem;
  font-weight: 400;
  letter-spacing: -0.04em;
}

.manual-section {
  margin-top: clamp(5rem, 8vw, 8rem);
}

.manual-section-heading {
  display: grid;
  grid-template-columns: minmax(6rem, 0.25fr) 1fr;
  gap: 2rem;
  align-items: baseline;
  padding-bottom: 1.2rem;
  border-bottom: 1px solid var(--ink);
}

.manual-section-heading > span,
.decision-panel > div > span {
  font-size: 0.56rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.manual-section-heading h4 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(2rem, 3vw, 3.2rem);
  font-weight: 400;
  letter-spacing: -0.04em;
  line-height: 1;
}

.manual-lessons {
  margin: 0;
  padding: 0;
  list-style: none;
}

.manual-lessons li {
  display: grid;
  grid-template-columns: 3rem minmax(6rem, 0.25fr) 1fr;
  gap: 1.5rem;
  align-items: start;
  padding: 1.65rem 0;
  border-bottom: 1px solid var(--line);
}

.lesson-number {
  color: var(--accent);
  font-family: var(--display);
  font-size: 1rem;
}

.lesson-area {
  margin: 0;
  padding-top: 0.22rem;
  color: var(--muted);
  font-size: 0.56rem;
  font-weight: 600;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.manual-lessons h5 {
  margin: 0 0 0.45rem;
  font-family: var(--display);
  font-size: clamp(1.45rem, 2.1vw, 2rem);
  font-weight: 500;
  line-height: 1.08;
}

.manual-lessons li > div > p {
  max-width: 45rem;
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.65;
}

.manual-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(20rem, 0.85fr);
  gap: clamp(2rem, 5vw, 5rem);
  margin-top: clamp(5rem, 8vw, 8rem);
}

.life-scan ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.life-scan li {
  display: grid;
  grid-template-columns: minmax(6rem, 0.3fr) 1fr;
  gap: 1.2rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--line);
}

.life-scan li span {
  color: var(--muted);
  font-size: 0.56rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.life-scan li p {
  margin: 0;
  font-family: var(--display);
  font-size: 1.05rem;
  line-height: 1.35;
}

.decision-panel {
  display: grid;
  grid-template-rows: 1fr 1fr;
}

.decision-panel > div {
  min-height: 15rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: clamp(1.5rem, 3vw, 2.5rem);
}

.decision-panel h4 {
  max-width: 13ch;
  margin: auto 0 0.7rem;
  font-family: var(--display);
  font-size: clamp(1.8rem, 2.8vw, 3rem);
  font-weight: 400;
  letter-spacing: -0.045em;
  line-height: 0.98;
}

.decision-panel p {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.6;
}

.trap-card {
  color: var(--white);
  background: var(--accent);
}

.action-card {
  color: var(--paper);
  background: var(--ink);
}

.self-check {
  display: grid;
  grid-template-columns: minmax(18rem, 0.75fr) minmax(22rem, 1.25fr);
  gap: clamp(2rem, 6vw, 6rem);
  margin-top: clamp(5rem, 8vw, 8rem);
  padding: clamp(2rem, 4vw, 4rem);
  color: var(--paper);
  background: var(--ink);
}

.self-check > div:first-child {
  align-self: center;
}

.self-check h4 {
  max-width: 12ch;
  margin: 1.2rem 0;
  font-family: var(--display);
  font-size: clamp(2.3rem, 3.8vw, 4rem);
  font-weight: 400;
  letter-spacing: -0.05em;
  line-height: 0.95;
}

.self-check > div:first-child > p:last-child {
  max-width: 27rem;
  margin: 0;
  color: rgba(243, 239, 229, 0.65);
  font-size: 0.8rem;
  line-height: 1.6;
}

.check-list {
  border-top: 1px solid rgba(243, 239, 229, 0.35);
}

.check-item {
  width: 100%;
  min-height: 5rem;
  display: grid;
  grid-template-columns: 2rem 1fr 1.5rem;
  gap: 1rem;
  align-items: center;
  padding: 1rem 0;
  border: 0;
  border-bottom: 1px solid rgba(243, 239, 229, 0.35);
  color: inherit;
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.check-item > span {
  color: rgba(243, 239, 229, 0.5);
  font-family: var(--display);
  font-size: 0.85rem;
}

.check-item strong {
  font-family: var(--display);
  font-size: 1.05rem;
  font-weight: 400;
  line-height: 1.3;
}

.check-item i {
  display: block;
  width: 1.25rem;
  height: 1.25rem;
  border: 1px solid rgba(243, 239, 229, 0.6);
  border-radius: 50%;
}

.check-item[aria-pressed="true"] strong {
  text-decoration: line-through;
  text-decoration-color: var(--accent);
  text-decoration-thickness: 2px;
}

.check-item[aria-pressed="true"] i {
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: inset 0 0 0 4px var(--ink);
}

.manual blockquote {
  position: relative;
  margin: clamp(5rem, 9vw, 9rem) 0 0;
  padding: 3rem 0 3rem clamp(2rem, 7vw, 8rem);
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

.manual blockquote::before {
  content: "“";
  position: absolute;
  top: 2.4rem;
  left: 0;
  color: var(--accent);
  font-family: var(--display);
  font-size: clamp(4rem, 8vw, 8rem);
  line-height: 0.8;
}

.manual blockquote span {
  display: block;
  margin-bottom: 0.8rem;
  font-size: 0.55rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.manual blockquote p {
  max-width: 24ch;
  margin: 0;
  font-family: var(--display);
  font-size: clamp(2rem, 4vw, 4rem);
  font-style: italic;
  letter-spacing: -0.045em;
  line-height: 1.05;
}

.chapter-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 2rem;
}

.chapter-nav button {
  min-height: 4.5rem;
  padding: 0.8rem 0;
  border: 0;
  border-bottom: 1px solid var(--ink);
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.chapter-nav button:last-child {
  text-align: right;
}

.chapter-nav small,
.chapter-nav span {
  display: block;
}

.chapter-nav small {
  margin-bottom: 0.35rem;
  color: var(--muted);
  font-size: 0.52rem;
  font-weight: 600;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.chapter-nav span {
  font-family: var(--display);
  font-size: 1.1rem;
}

.compass {
  display: grid;
  grid-template-columns: minmax(0, 0.18fr) minmax(20rem, 0.72fr) minmax(25rem, 1fr);
  gap: clamp(2rem, 5vw, 6rem);
  padding: clamp(7rem, 11vw, 11rem) var(--page-pad);
  color: var(--paper);
  background: var(--ink);
}

.section-meta--light {
  color: rgba(243, 239, 229, 0.65);
  align-self: start;
  grid-template-columns: auto 2rem;
}

.section-meta--light small {
  grid-column: 1 / -1;
}

.compass-heading h2 {
  max-width: 11ch;
}

.compass-list {
  margin: 0;
  padding: 0;
  border-top: 1px solid rgba(243, 239, 229, 0.45);
  list-style: none;
}

.compass-list li {
  display: grid;
  grid-template-columns: 2rem minmax(8rem, 0.55fr) 1fr;
  gap: 1.4rem;
  align-items: baseline;
  padding: 1.5rem 0;
  border-bottom: 1px solid rgba(243, 239, 229, 0.45);
}

.compass-list > li > span {
  color: var(--accent);
  font-family: var(--display);
}

.compass-list h3 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(1.35rem, 2vw, 1.8rem);
  font-weight: 400;
}

.compass-list p {
  margin: 0;
  color: rgba(243, 239, 229, 0.62);
  font-size: 0.8rem;
  line-height: 1.65;
}

.closing {
  min-height: 82svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 7rem var(--page-pad);
  background: var(--paper);
  text-align: center;
}

.closing::before {
  content: "";
  width: 0.75rem;
  height: 0.75rem;
  margin-bottom: 2.5rem;
  background: var(--accent);
  border-radius: 50%;
}

.closing h2 {
  margin: 2rem 0 3rem;
  font-family: var(--display);
  font-size: clamp(3.8rem, 8.2vw, 8.6rem);
  font-weight: 400;
  letter-spacing: -0.065em;
  line-height: 0.84;
}

.primary-link--light:hover svg,
.primary-link--light:focus-visible svg {
  transform: translateX(0.25rem);
}

footer {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 2rem;
  padding: 2rem var(--page-pad);
  color: var(--paper);
  background: var(--ink);
  border-top: 1px solid rgba(243, 239, 229, 0.24);
}

.wordmark--footer {
  color: var(--paper);
}

footer p {
  margin: 0;
  font-size: 0.58rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

footer p:last-child {
  justify-self: end;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

@media (max-width: 1100px) {
  .hero {
    grid-template-columns: minmax(0, 1.4fr) minmax(19rem, 0.6fr);
  }

  .hero-bottom,
  .manual-opening,
  .manual-grid,
  .self-check {
    grid-template-columns: 1fr;
  }

  .hero-bottom {
    align-items: start;
  }

  .primary-link {
    width: fit-content;
  }

  .manual-grid {
    gap: 3rem;
  }

  .decision-panel {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto;
  }

  .self-check {
    gap: 3rem;
  }
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    min-height: 100svh;
  }

  .hero-index {
    min-height: auto;
    padding: 2.5rem var(--page-pad);
  }

  .hero-index-line {
    display: none;
  }

  .hero-index ol {
    display: flex;
    gap: 0.65rem;
    margin: 1.5rem calc(-1 * var(--page-pad)) 1.8rem;
    padding-inline: var(--page-pad);
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    scrollbar-width: none;
  }

  .hero-index ol::-webkit-scrollbar {
    display: none;
  }

  .hero-index li {
    flex: 0 0 6.7rem;
  }

  .hero-index button {
    min-height: 6.5rem;
    grid-template-columns: 1fr;
    gap: 0.55rem;
    align-content: center;
    justify-items: start;
    padding: 0.8rem;
    border: 1px solid rgba(243, 239, 229, 0.28);
  }

  .hero-index > p {
    max-width: none;
  }

  .perspective,
  .compass {
    grid-template-columns: 4rem 1fr;
  }

  .perspective-copy,
  .perspective-panel,
  .compass-heading,
  .compass-list {
    grid-column: 2;
  }

  .journey-heading {
    grid-template-columns: 1fr;
    gap: 2.2rem;
  }

  .journey-status {
    display: none;
  }

  .timeline {
    margin-top: 0;
  }
}

@media (max-width: 700px) {
  .site-header nav a:first-child {
    display: none;
  }

  .hero-copy {
    min-height: auto;
    padding-top: 8.5rem;
  }

  .hero h1 {
    font-size: clamp(4.1rem, 17vw, 6.2rem);
    line-height: 0.83;
  }

  .hero-intro {
    font-size: 1.18rem;
  }

  .perspective,
  .compass {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .perspective .section-meta,
  .perspective-copy,
  .perspective-panel,
  .compass .section-meta,
  .compass-heading,
  .compass-list {
    grid-column: 1;
  }

  .section-meta,
  .perspective .section-meta,
  .section-meta--light {
    grid-template-columns: auto 1fr auto;
  }

  .section-meta small,
  .perspective .section-meta small,
  .section-meta--light small {
    grid-column: auto;
  }

  .perspective-copy h2,
  .compass-heading h2 {
    font-size: clamp(3.2rem, 13.5vw, 4.8rem);
  }

  .perspective-control button {
    min-height: 9rem;
    grid-template-columns: 1fr;
    gap: 1.4rem;
  }

  .lens-status {
    grid-template-columns: 6rem 1fr;
  }

  .journey-heading {
    margin-bottom: 6rem;
  }

  .journey-heading h2 {
    font-size: clamp(3.5rem, 14.5vw, 5.2rem);
  }

  .timeline {
    --rail-width: 5rem;
  }

  .milestone {
    min-height: 29rem;
  }

  .milestone.is-open {
    padding-bottom: 7rem;
  }

  .milestone-copy {
    padding-left: 0.85rem;
  }

  .age-marker {
    width: 4.5rem;
    height: 4.5rem;
  }

  .age-marker span {
    font-size: 1.4rem;
  }

  .chapter-topline {
    align-items: flex-start;
    flex-direction: column;
  }

  .chapter-topline ul {
    justify-content: flex-start;
  }

  .chapter-label {
    max-width: 25ch;
    font-size: 0.56rem;
  }

  .milestone h3 {
    font-size: clamp(3rem, 13.5vw, 4.6rem);
  }

  .chapter-summary {
    font-size: 1.08rem;
  }

  .manual {
    width: calc(100vw - (2 * var(--page-pad)));
    margin-left: calc(-5rem - 0.85rem);
    margin-top: 3rem;
    padding-top: 2rem;
    background: var(--paper);
  }

  .manual-opening {
    gap: 1.5rem;
  }

  .manual-opening h4 {
    font-size: clamp(2.5rem, 11vw, 3.4rem);
  }

  .manual-key > span {
    min-height: 5.8rem;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 0.35rem;
    padding: 0.8rem;
    font-size: 0.47rem;
  }

  .manual-key strong {
    font-size: 1.55rem;
  }

  .manual-section-heading {
    grid-template-columns: 1fr;
    gap: 0.65rem;
  }

  .manual-lessons li {
    grid-template-columns: 2.2rem 1fr;
    gap: 0.75rem;
  }

  .manual-lessons li > div {
    grid-column: 1 / -1;
    padding-left: 2.95rem;
  }

  .manual-lessons h5 {
    font-size: 1.45rem;
  }

  .life-scan li {
    grid-template-columns: 5.8rem 1fr;
  }

  .decision-panel {
    grid-template-columns: 1fr;
  }

  .decision-panel > div {
    min-height: 14rem;
  }

  .self-check {
    padding: 1.5rem;
  }

  .self-check h4 {
    font-size: 2.6rem;
  }

  .check-item {
    grid-template-columns: 1.6rem 1fr 1.4rem;
    gap: 0.7rem;
  }

  .manual blockquote {
    padding-left: 4rem;
  }

  .manual blockquote p {
    font-size: 2.2rem;
  }

  .chapter-nav {
    gap: 1rem;
  }

  .chapter-nav span {
    font-size: 0.9rem;
  }

  .compass-list li {
    grid-template-columns: 1.5rem 1fr;
    gap: 0.8rem;
  }

  .compass-list p {
    grid-column: 2;
  }

  .closing {
    min-height: 72svh;
  }

  .closing h2 {
    font-size: clamp(3.4rem, 14.5vw, 5.2rem);
  }

  footer {
    grid-template-columns: 1fr auto;
  }

  footer > p:first-of-type {
    display: none;
  }
}

@media (max-width: 430px) {
  .site-header nav {
    gap: 1rem;
  }

  .site-header nav a {
    font-size: 0.56rem;
  }

  .hero h1 {
    font-size: clamp(3.85rem, 17vw, 4.65rem);
  }

  .perspective-control {
    grid-template-columns: 1fr;
  }

  .perspective-control button {
    min-height: 7.5rem;
    grid-template-columns: auto 1fr;
  }

  .perspective-control button + button {
    border-top: 1px solid var(--ink);
    border-left: 0;
  }

  .lens-status {
    grid-template-columns: 1fr;
  }

  .lens-status p {
    grid-column: 1;
  }

  .chapter-topline li:nth-child(3) {
    display: none;
  }

  .milestone h3 {
    font-size: 3rem;
  }

  .manual-key > span {
    padding-inline: 0.55rem;
  }
}

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

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

@media print {
  .site-header,
  .hero-index,
  .journey-status,
  .chapter-toggle,
  .closing,
  .chapter-nav,
  .check-list {
    display: none;
  }

  .hero,
  .hero-copy {
    min-height: auto;
  }

  .hero-copy {
    padding-top: 2rem;
  }

  .milestone {
    min-height: auto;
    break-inside: avoid;
  }
}