:root {
  color-scheme: light;
  --paper: #f4f1eb;
  --paper-solid: #f7f4ee;
  --ink: #18201d;
  --jade: #315c4a;
  --jade-deep: #224a39;
  --muted: #68716b;
  --line: rgba(49, 92, 74, 0.27);
  --line-soft: rgba(24, 32, 29, 0.14);
  --display: "Newsreader", Georgia, serif;
  --sans: "Manrope", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --z-header: 10;
  --z-nav: 40;
  --z-toast: 50;
}

* { box-sizing: border-box; }

html {
  min-width: 320px;
  background: var(--paper);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

button { color: inherit; font: inherit; touch-action: manipulation; }
button:focus-visible, a:focus-visible { outline: 2px solid var(--jade-deep); outline-offset: 4px; }

.skip-link {
  position: fixed;
  top: 12px;
  left: 16px;
  z-index: 100;
  padding: 10px 14px;
  background: var(--jade-deep);
  color: var(--paper-solid);
  text-decoration: none;
  transform: translateY(-150%);
  transition: transform 180ms ease-out;
}

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

.reading-page {
  min-height: 100vh;
  background: var(--paper);
}

.site-header {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  z-index: var(--z-header);
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 28px 52px 10px;
}

.wordmark {
  min-width: 66px;
  min-height: 44px;
  appearance: none;
  border: 0;
  padding: 0;
  background: transparent;
  cursor: pointer;
  font-family: var(--display);
  font-size: 32px;
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.055em;
}

.product-nav { display: flex; align-items: center; gap: clamp(36px, 4.2vw, 66px); }
.product-nav--mobile { display: none; }

.nav-item {
  position: relative;
  min-height: 44px;
  appearance: none;
  border: 0;
  padding: 0 2px;
  background: transparent;
  cursor: pointer;
  font-size: 15px;
  font-weight: 500;
  line-height: 44px;
  transition: color 180ms ease;
}

.nav-item::after {
  position: absolute;
  right: 0;
  bottom: 1px;
  left: 0;
  height: 2px;
  background: var(--jade);
  content: "";
  opacity: 0;
  transform: scaleX(.65);
  transition: opacity 180ms ease, transform 180ms ease;
}

.nav-item:hover, .nav-item.is-active { color: var(--jade-deep); }
.nav-item.is-active::after { opacity: 1; transform: scaleX(1); }

.reading-intro {
  min-height: 548px;
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(300px, .7fr);
  align-items: end;
  gap: clamp(64px, 9vw, 144px);
  padding: 160px max(7vw, 72px) 74px;
  background-color: var(--paper);
  background-image: linear-gradient(to bottom, rgba(244, 241, 235, .06), rgba(244, 241, 235, .78)), url('/assets/ink-mirror/reading-section-transition-desktop-v101.jpg');
  background-position: center top;
  background-size: cover;
  background-repeat: no-repeat;
}

.intro-copy, .life-book-notice { width: 100%; max-width: 790px; }

.eyebrow, .notice-label {
  margin: 0;
  color: var(--jade-deep);
  font-size: 12px;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: .17em;
}

.reading-intro h1 {
  margin: 18px 0 20px;
  font-family: var(--display);
  font-size: clamp(58px, 6.15vw, 88px);
  font-weight: 400;
  line-height: .94;
  letter-spacing: -.052em;
}

.intro-support {
  max-width: 650px;
  margin: 0;
  color: #4f5953;
  font-size: 16px;
  line-height: 1.68;
}

.life-book-notice {
  align-self: end;
  padding: 0 0 4px;
}

.notice-rule {
  width: 46px;
  height: 1px;
  display: block;
  margin-bottom: 24px;
  background: var(--jade-deep);
}

.notice-label { font-size: 10px; }

.life-book-notice > p:last-child {
  margin: 12px 0 0;
  color: #4d5852;
  font-family: var(--display);
  font-size: clamp(23px, 2vw, 29px);
  line-height: 1.23;
  letter-spacing: -.018em;
}

.conclusions-section {
  padding: 0 max(7vw, 72px);
  background: var(--paper-solid);
}

.conclusions-grid {
  width: min(1240px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
}

.conclusion {
  min-height: 285px;
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 26px;
  padding: 42px 46px 42px 0;
  border-bottom: 1px solid var(--line);
}

.conclusion:nth-child(odd) { padding-right: 58px; }
.conclusion:nth-child(even) { padding-left: 58px; border-left: 1px solid var(--line-soft); }

.conclusion-index {
  padding-top: 5px;
  color: var(--jade-deep);
  font-size: 12px;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: .17em;
}

.conclusion h2 {
  margin: 0 0 20px;
  color: var(--jade-deep);
  font-size: 12px;
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: .09em;
  text-transform: uppercase;
}

.conclusion-line {
  max-width: 500px;
  margin: 0;
  font-family: var(--display);
  font-size: clamp(28px, 2.3vw, 36px);
  line-height: 1.12;
  letter-spacing: -.032em;
}

.conclusion-support {
  max-width: 470px;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
}

.life-book-transition {
  min-height: 360px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 70px;
  padding: 78px max(7vw, 72px) 92px;
  background: var(--jade-deep);
  color: var(--paper-solid);
}

.life-book-transition > div:first-child { max-width: 740px; }
.life-book-transition .eyebrow { color: #b8c9bf; }

.life-book-transition h2 {
  margin: 17px 0 12px;
  font-family: var(--display);
  font-size: clamp(48px, 5.1vw, 72px);
  font-weight: 400;
  line-height: .98;
  letter-spacing: -.045em;
}

.life-book-transition > div:first-child > p:last-child {
  margin: 0;
  color: rgba(247, 244, 238, .72);
  font-size: 15px;
  line-height: 1.6;
}

.transition-action { width: min(360px, 100%); }

.primary-action {
  width: 100%;
  min-height: 58px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(247, 244, 238, .8);
  padding: 0 24px;
  background: var(--paper-solid);
  color: var(--jade-deep);
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  transition: background 180ms ease, color 180ms ease;
}

.primary-action:hover { background: transparent; color: var(--paper-solid); }
.transition-action > p { margin: 12px 0 0; color: rgba(247, 244, 238, .68); font-size: 12px; }

.toast {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: var(--z-toast);
  max-width: min(380px, calc(100vw - 48px));
  padding: 13px 17px;
  border: 1px solid rgba(49, 92, 74, .2);
  background: rgba(247, 244, 238, .97);
  box-shadow: 0 18px 46px -28px rgba(24, 32, 29, .7);
  color: var(--jade-deep);
  font-size: 13px;
  line-height: 1.45;
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 180ms ease, transform 180ms ease;
}

.toast.is-visible { opacity: 1; transform: translateY(0); }

@media (max-width: 820px) {
  body { padding-bottom: calc(60px + env(safe-area-inset-bottom)); }

  .site-header {
    min-height: 61px;
    padding: max(9px, env(safe-area-inset-top)) 24px 7px;
  }

  .wordmark { min-height: 44px; font-size: 22px; }
  .site-header > .product-nav { display: none; }

  .reading-intro {
    min-height: auto;
    display: block;
    padding: calc(96px + env(safe-area-inset-top)) 28px 38px;
    background-image: linear-gradient(to bottom, rgba(244, 241, 235, .03), rgba(244, 241, 235, .84)), url('/assets/ink-mirror/reading-section-transition-mobile-v101.jpg');
    background-position: center top;
    background-size: cover;
  }

  .eyebrow { font-size: 10px; }

  .reading-intro h1 {
    margin: 13px 0 17px;
    font-size: clamp(46px, 13.3vw, 56px);
    line-height: .96;
  }

  .intro-support { max-width: 33em; font-size: 15px; line-height: 1.58; }

  .life-book-notice {
    margin-top: 34px;
    padding-top: 0;
  }

  .notice-rule { width: 34px; margin-bottom: 16px; }
  .notice-label { font-size: 9px; }
  .life-book-notice > p:last-child {
    max-width: 33em;
    margin-top: 9px;
    color: #53605a;
    font-family: var(--sans);
    font-size: 14px;
    line-height: 1.58;
    letter-spacing: 0;
  }

  .conclusions-section { padding: 0 28px; }
  .conclusions-grid { display: block; }

  .conclusion,
  .conclusion:nth-child(odd),
  .conclusion:nth-child(even) {
    min-height: 0;
    display: grid;
    grid-template-columns: 38px minmax(0, 1fr);
    gap: 10px;
    padding: 27px 0 30px;
    border-left: 0;
  }

  .conclusion-index { padding-top: 3px; font-size: 10px; }
  .conclusion h2 { margin-bottom: 12px; font-size: 10px; }
  .conclusion-line { font-size: clamp(25px, 7.3vw, 30px); line-height: 1.14; }
  .conclusion-support { margin-top: 12px; font-size: 14px; line-height: 1.58; }

  .life-book-transition {
    min-height: 440px;
    display: block;
    padding: 62px 28px calc(100px + env(safe-area-inset-bottom));
  }

  .life-book-transition h2 { margin-top: 14px; font-size: 48px; line-height: .98; }
  .life-book-transition > div:first-child > p:last-child { font-size: 14px; }
  .transition-action { width: 100%; margin-top: 38px; }
  .primary-action { min-height: 56px; }

  .product-nav--mobile {
    position: fixed;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: var(--z-nav);
    height: calc(60px + env(safe-area-inset-bottom));
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
    padding: 0 10px env(safe-area-inset-bottom);
    border-top: 1px solid rgba(24, 32, 29, .16);
    background: rgba(247, 244, 238, .96);
    backdrop-filter: blur(13px);
  }

  .product-nav--mobile .nav-item {
    min-width: 0;
    min-height: 44px;
    padding: 0 4px;
    font-size: 13px;
    line-height: 44px;
  }

  .product-nav--mobile .nav-item::after { right: 14%; bottom: 17px; left: 14%; }
  .toast { right: 16px; bottom: calc(84px + env(safe-area-inset-bottom)); }
}

@media (max-width: 360px) {
  .site-header { padding-right: 20px; padding-left: 20px; }
  .reading-intro { padding-right: 22px; padding-left: 22px; }
  .reading-intro h1 { font-size: 43px; }
  .intro-support { font-size: 14px; }
  .conclusions-section { padding: 0 22px; }
  .conclusion, .conclusion:nth-child(odd), .conclusion:nth-child(even) { grid-template-columns: 34px minmax(0, 1fr); }
  .conclusion-line { font-size: 25px; }
  .conclusion-support { font-size: 13.5px; }
  .life-book-transition { padding-right: 22px; padding-left: 22px; }
  .life-book-transition h2 { font-size: 43px; }
}

@media (orientation: landscape) and (max-height: 520px) and (max-width: 920px) {
  body { padding-bottom: 0; }
  .site-header { min-height: 52px; padding: 8px 22px 0; }
  .site-header > .product-nav { display: none; }
  .wordmark { font-size: 25px; }

  .reading-intro {
    min-height: 100svh;
    display: grid;
    grid-template-columns: 1.2fr .8fr;
    align-items: center;
    gap: 48px;
    padding: 72px 8vw 36px;
  }

  .reading-intro h1 { font-size: 50px; }
  .intro-support { font-size: 13px; }
  .life-book-notice { margin-top: 0; }
  .life-book-notice > p:last-child { font-size: 18px; }

  .product-nav--mobile {
    position: fixed;
    top: 0;
    right: 16px;
    bottom: auto;
    left: auto;
    width: auto;
    height: 52px;
    display: flex;
    gap: 18px;
    padding: 0;
    border: 0;
    background: transparent;
    backdrop-filter: none;
  }

  .product-nav--mobile .nav-item { font-size: 11px; }
  .conclusions-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .conclusion:nth-child(even) { padding-left: 34px; border-left: 1px solid var(--line-soft); }
  .conclusion:nth-child(odd) { padding-right: 34px; }
  .life-book-transition { min-height: 100svh; padding-bottom: 64px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
}