:root {
  --ink: #202827;
  --ink-soft: #30403c;
  --terra: #a9583c;
  --terra-light: #d89578;
  --ivory: #f5f1e9;
  --paper: #fffdf8;
  --line: rgba(32, 40, 39, 0.19);
  --line-light: rgba(245, 241, 233, 0.24);
  --muted: #65716c;
  --serif: "Iowan Old Style", "Baskerville", "Palatino Linotype", Georgia, serif;
  --sans: Inter, "Helvetica Neue", Helvetica, Arial, sans-serif;
  --display: "Arial Narrow", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --shell: min(1180px, calc(100% - 96px));
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--ivory);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
.shell { width: var(--shell); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; z-index: 100; top: 12px; left: 12px; padding: 10px 14px; background: var(--terra); color: white; transform: translateY(-160%); transition: transform .2s var(--ease); }
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: absolute;
  z-index: 20;
  inset: 0 0 auto;
  color: var(--ivory);
}
.header-inner { min-height: 92px; display: flex; align-items: center; justify-content: space-between; gap: 40px; border-bottom: 1px solid rgba(245, 241, 233, .2); }
.brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; }
.brand-mark { display: inline-grid; place-items: center; width: 32px; height: 32px; background: var(--terra); color: var(--ivory); font: 700 19px/1 var(--serif); }
.brand-copy { display: grid; gap: 1px; letter-spacing: .12em; }
.brand-copy strong { font: 700 11px/1 var(--display); letter-spacing: .16em; }
.brand-copy small { color: var(--terra-light); font: 10px/1.25 var(--sans); letter-spacing: .06em; text-transform: uppercase; }
.main-nav { display: flex; align-items: center; gap: clamp(18px, 2.7vw, 38px); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; }
.main-nav a { position: relative; text-decoration: none; color: var(--ivory); opacity: .84; transition: opacity .2s ease, color .2s ease; }
.main-nav a:not(.nav-cta)::after { position: absolute; right: 0; bottom: -7px; left: 0; height: 1px; background: var(--terra-light); content: ""; transform: scaleX(0); transform-origin: left; transition: transform .25s var(--ease); }
.main-nav a:hover, .main-nav a:focus-visible { opacity: 1; color: white; }
.main-nav a:not(.nav-cta):hover::after, .main-nav a:not(.nav-cta):focus-visible::after { transform: scaleX(1); }
.nav-cta { padding: 12px 15px; border: 1px solid rgba(245,241,233,.42); color: white !important; opacity: 1 !important; transition: background .2s ease, border-color .2s ease !important; }
.nav-cta:hover, .nav-cta:focus-visible { border-color: var(--terra-light); background: var(--terra); }
.menu-toggle { display: none; border: 0; background: transparent; color: white; cursor: pointer; }

.hero { position: relative; overflow: hidden; min-height: 800px; padding: 178px 0 58px; background: var(--ink); color: var(--ivory); }
.hero::before { position: absolute; top: 0; right: 0; bottom: 0; width: 44%; border-left: 1px solid rgba(245,241,233,.12); background: linear-gradient(150deg, rgba(169,88,60,.16), transparent 47%); content: ""; pointer-events: none; }
.hero::after { position: absolute; right: 4%; bottom: 21%; width: 21vw; height: 21vw; max-width: 300px; max-height: 300px; border: 1px solid rgba(216,149,120,.32); content: ""; transform: rotate(34deg); pointer-events: none; }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1.02fr) minmax(390px, .98fr); align-items: center; gap: 8vw; min-height: 615px; }
.eyebrow { display: flex; align-items: center; gap: 11px; margin: 0 0 24px; color: var(--terra-light); font-size: 10px; font-weight: 700; letter-spacing: .19em; line-height: 1.2; text-transform: uppercase; }
.eyebrow-dark { color: var(--terra); }
.eyebrow-rule { display: inline-block; width: 31px; height: 1px; background: currentColor; }
.hero h1 { max-width: 650px; margin: 0; font: 700 clamp(48px, 6.3vw, 88px)/.94 var(--display); letter-spacing: -.055em; text-transform: uppercase; }
h1 em, h2 em { color: var(--terra-light); font-family: var(--serif); font-weight: 400; letter-spacing: -.06em; text-transform: none; }
.hero-lede { max-width: 515px; margin: 32px 0 0; color: #d9ddd6; font-size: 17px; line-height: 1.65; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 25px; margin-top: 34px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 13px; min-height: 52px; padding: 14px 20px; border: 1px solid transparent; font-size: 12px; font-weight: 700; letter-spacing: .1em; text-decoration: none; text-transform: uppercase; transition: background .25s ease, color .25s ease, border-color .25s ease, transform .25s var(--ease); }
.button:hover, .button:focus-visible { transform: translateY(-3px); }
.button-primary { background: var(--terra); color: white; }
.button-primary:hover, .button-primary:focus-visible { background: #c36a4c; }
.button-dark { background: var(--ink); color: var(--ivory); }
.button-dark:hover, .button-dark:focus-visible { background: var(--terra); }
.text-link, .arrow-link, .social-link { display: inline-flex; align-items: center; gap: 10px; font-size: 12px; font-weight: 700; letter-spacing: .1em; text-decoration: none; text-transform: uppercase; }
.text-link { color: var(--ivory); opacity: .75; transition: opacity .2s ease; }
.text-link:hover, .text-link:focus-visible { opacity: 1; }
.hero-facts { display: flex; flex-wrap: wrap; gap: 20px 32px; margin-top: 55px; color: #9fa9a3; font-size: 11px; letter-spacing: .1em; text-transform: uppercase; }
.hero-facts span { position: relative; }
.hero-facts span + span::before { position: absolute; top: 50%; left: -17px; width: 4px; height: 4px; background: var(--terra); content: ""; transform: translateY(-50%); }
.hero-facts b { margin-right: 4px; color: var(--ivory); font-size: 14px; }
.hero-visual { position: relative; display: grid; place-items: center; min-height: 550px; perspective: 1500px; }
.book-mockup { position: relative; z-index: 2; width: min(54%, 355px); transform: rotateY(-20deg) rotateZ(2.7deg); transform-style: preserve-3d; filter: drop-shadow(30px 28px 20px rgba(0,0,0,.38)); transition: transform .7s var(--ease); }
.book-mockup::after { position: absolute; z-index: -1; top: 0; right: -14px; bottom: 0; width: 14px; background: #a84d34; content: ""; transform: skewY(-2.5deg); transform-origin: left; }
.book-mockup img { width: 100%; aspect-ratio: 851 / 1200; object-fit: cover; border: 1px solid rgba(245,241,233,.48); }
.hero-visual:hover .book-mockup { transform: rotateY(-13deg) rotateZ(1deg) translateY(-9px); }
.book-shadow { position: absolute; z-index: 1; bottom: 21%; width: 55%; height: 8%; border-radius: 50%; background: rgba(0,0,0,.48); filter: blur(18px); transform: rotate(-5deg); }
.visual-note { position: absolute; z-index: 3; color: var(--terra-light); font: 700 11px/1.4 var(--sans); letter-spacing: .14em; }
.note-top { top: 13%; right: 4%; text-align: right; }
.note-bottom { bottom: 14%; left: 4%; }
.visual-note span { color: var(--ivory); }
.visual-coordinate { position: absolute; right: 3%; bottom: 31%; color: rgba(245,241,233,.62); font: 700 11px var(--sans); letter-spacing: .12em; }
.visual-coordinate span { color: var(--terra-light); }
.hero-edge { position: absolute; right: 0; bottom: 0; left: 0; z-index: 2; display: flex; justify-content: space-between; width: var(--shell); margin: auto; padding: 17px 0; border-top: 1px solid rgba(245,241,233,.2); color: #9fa9a3; font-size: 9px; letter-spacing: .18em; }

.section-dark { background: var(--ink); color: var(--ivory); }
.section-ivory { background: var(--ivory); }
.section-terra { background: var(--terra); color: var(--ivory); }
.section-index { align-self: start; margin: 0; color: var(--terra); font-size: 10px; font-weight: 700; letter-spacing: .18em; line-height: 1.2; text-transform: uppercase; }
.section-index-light { color: var(--terra-light); }
.section-index span { padding: 0 4px; opacity: .65; }
.intro-section { padding: 144px 0 152px; }
.intro-grid { display: grid; grid-template-columns: 1fr 1.9fr .95fr; gap: 8vw; }
.intro-statement h2, .book-copy h2, .chapters-head h2, .comparison-title-wrap h2, .work-copy h2, .author-copy h2, .offer-copy h2, .faq-heading h2 { margin: 0; font: 700 clamp(38px, 4.3vw, 63px)/1.02 var(--display); letter-spacing: -.05em; text-transform: uppercase; }
.intro-statement h2 em, .chapters-head h2 em, .comparison-title-wrap h2 em, .faq-heading h2 em { color: var(--terra-light); }
.intro-statement p { max-width: 560px; margin: 28px 0 0; color: #c1c8c1; font-size: 18px; line-height: 1.6; }
.intro-aside { align-self: end; max-width: 230px; padding-left: 22px; border-left: 1px solid var(--terra); color: #aeb9b1; font-size: 13px; }
.aside-label { display: block; margin-bottom: 17px; color: var(--terra-light); font-size: 10px; font-weight: 700; letter-spacing: .15em; text-transform: uppercase; }
.aside-line { display: block; width: 38px; height: 1px; margin-top: 28px; background: var(--terra); }

.book-section { padding: 146px 0 154px; }
.book-layout { display: grid; grid-template-columns: minmax(360px, .9fr) minmax(0, 1.1fr); gap: 10vw; align-items: center; }
.book-image-wrap { position: relative; padding: 42px 0 0 46px; }
.image-kicker { position: absolute; top: 0; left: 0; color: var(--terra); font-size: 10px; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; }
.architecture-figure { position: relative; margin: 0; }
.architecture-figure::before { position: absolute; top: -19px; left: -19px; width: 58%; height: 64%; border: 1px solid var(--terra); content: ""; pointer-events: none; }
.architecture-figure::after { position: absolute; right: -22px; bottom: 16%; width: 22px; height: 1px; background: var(--terra); content: ""; }
.architecture-figure img { position: relative; z-index: 1; width: 100%; aspect-ratio: 3 / 2; object-fit: cover; filter: saturate(.86); }
.architecture-figure figcaption { margin-top: 16px; padding-left: 4px; color: var(--muted); font: 13px/1.5 var(--serif); }
.image-stamp { position: absolute; right: -5px; bottom: 22%; z-index: 2; padding: 11px 9px; background: var(--terra); color: var(--ivory); font: 700 11px/1.3 var(--sans); letter-spacing: .1em; transform: rotate(-90deg) translateX(50%); transform-origin: right bottom; }
.image-stamp span { font-size: 8px; letter-spacing: .17em; }
.book-copy > p:not(.eyebrow) { max-width: 570px; margin: 26px 0 0; color: #59645f; font-size: 17px; line-height: 1.7; }
.book-includes { margin-top: 42px; border-top: 1px solid var(--line); }
.include-row { display: grid; grid-template-columns: 35px 1fr; gap: 14px; padding: 17px 0; border-bottom: 1px solid var(--line); }
.include-number { color: var(--terra); font: 700 12px var(--sans); letter-spacing: .1em; }
.include-row p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.5; }
.include-row strong { color: var(--ink); font-size: 14px; }
.arrow-link { margin-top: 32px; color: var(--terra); }
.arrow-link span { font-size: 20px; transition: transform .2s ease; }
.arrow-link:hover span, .arrow-link:focus-visible span { transform: translateX(5px); }

.chapters-section { padding: 144px 0 160px; background: var(--paper); }
.chapters-head { display: grid; grid-template-columns: minmax(0, 1fr) 310px; gap: 12vw; align-items: end; padding-bottom: 72px; }
.chapters-intro { max-width: 310px; margin: 0 0 3px; color: var(--muted); font: 16px/1.65 var(--serif); }
.chapter-list { border-top: 1px solid var(--line); }
.chapter-row { display: grid; grid-template-columns: 75px minmax(230px, .9fr) minmax(220px, 1fr) 28px; gap: 28px; align-items: center; padding: 25px 0 24px; border-bottom: 1px solid var(--line); transition: padding .3s var(--ease), background .3s ease; }
.chapter-row:hover { padding-right: 16px; padding-left: 16px; background: var(--ivory); }
.chapter-no { color: var(--terra); font: 700 12px var(--sans); letter-spacing: .12em; }
.chapter-row h3 { margin: 0; font: 700 clamp(19px, 2vw, 25px)/1.05 var(--display); letter-spacing: -.04em; text-transform: uppercase; }
.chapter-row p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.45; }
.chapter-arrow { justify-self: end; color: var(--terra); font-size: 19px; transition: transform .2s ease; }
.chapter-row:hover .chapter-arrow { transform: translate(3px, -3px); }

.comparison-section { padding: 109px 0 129px; }
.comparison-heading { display: grid; grid-template-columns: 1fr 1.6fr; gap: 12vw; align-items: start; }
.comparison-title-wrap h2 { max-width: 680px; }
.comparison-title-wrap p { max-width: 490px; margin: 27px 0 0; color: #f1d1c3; font-size: 16px; line-height: 1.65; }
.comparison-visual { margin-top: 78px; }
.comparison-visual figure { margin: 0; }
.comparison-visual img { width: 100%; border: 1px solid rgba(245,241,233,.38); background: var(--ivory); }
.comparison-visual figcaption { display: flex; justify-content: space-between; gap: 20px; margin-top: 14px; color: #f2d1c2; font: 12px/1.45 var(--serif); }
.comparison-visual figcaption span { flex: 0 0 auto; color: var(--ivory); font: 700 9px var(--sans); letter-spacing: .15em; }
.comparison-notes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 5vw; margin-top: 66px; padding-top: 24px; border-top: 1px solid rgba(245,241,233,.36); }
.comparison-notes div { position: relative; }
.comparison-notes div + div::before { position: absolute; top: 0; left: -2.5vw; width: 1px; height: 100%; background: rgba(245,241,233,.27); content: ""; }
.comparison-notes span { color: #f1d1c3; font-size: 9px; font-weight: 700; letter-spacing: .18em; }
.comparison-notes p { margin: 14px 0 0; color: var(--ivory); font: 16px/1.5 var(--serif); }

.work-section { padding: 147px 0 155px; }
.work-layout { display: grid; grid-template-columns: minmax(0, .92fr) minmax(360px, .8fr); gap: 13vw; align-items: center; }
.work-copy > p:not(.eyebrow):not(.fine-print) { max-width: 500px; margin: 27px 0 0; color: #59645f; font-size: 17px; line-height: 1.65; }
.check-list { max-width: 480px; margin: 34px 0 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.check-list li { display: flex; gap: 14px; padding: 14px 0; border-bottom: 1px solid var(--line); color: var(--ink); font-size: 13px; }
.check-list li span { color: var(--terra); font: 700 18px/1 var(--serif); }
.fine-print { max-width: 390px; margin: 29px 0 0; color: var(--muted); font-size: 12px; font-style: italic; }
.page-preview { margin: 0; }
.paper-frame { position: relative; padding: 24px; background: #ddd8cd; box-shadow: 17px 20px 0 rgba(32,40,39,.1); transform: rotate(3deg); }
.paper-frame::after { position: absolute; right: -18px; bottom: -17px; width: 72px; height: 72px; border-right: 1px solid var(--terra); border-bottom: 1px solid var(--terra); content: ""; }
.paper-frame img { width: 100%; max-height: 520px; object-fit: cover; object-position: top; }
.page-preview figcaption { margin: 26px 0 0; color: var(--muted); font: 13px/1.5 var(--serif); }
.page-preview figcaption span { display: block; margin-bottom: 8px; color: var(--terra); font: 700 9px var(--sans); letter-spacing: .17em; }

.author-section { padding: 135px 0 150px; }
.author-layout { display: grid; grid-template-columns: .75fr 1.25fr; gap: 8vw; }
.author-index { position: relative; min-height: 330px; }
.author-initial { position: absolute; bottom: -13%; left: -6%; color: var(--terra); font: 700 min(35vw, 430px)/.68 var(--serif); letter-spacing: -.14em; opacity: .9; }
.author-copy { position: relative; z-index: 1; max-width: 650px; padding-top: 38px; }
.author-copy h2 { max-width: 650px; }
.author-copy > p:not(.eyebrow) { max-width: 570px; margin: 28px 0 0; color: #c1c8c1; font-size: 17px; line-height: 1.65; }
.social-link { margin-top: 40px; color: var(--terra-light); border-bottom: 1px solid var(--terra); padding-bottom: 8px; }
.social-link span { font-size: 18px; }

.offer-section { position: relative; overflow: hidden; padding: 142px 0 149px; background: var(--terra); color: var(--ivory); }
.offer-section::before { position: absolute; top: -33%; right: -8%; width: 40vw; height: 40vw; border: 1px solid rgba(245,241,233,.29); content: ""; transform: rotate(35deg); }
.offer-layout { position: relative; z-index: 1; display: grid; grid-template-columns: 1.1fr .7fr; gap: 13vw; align-items: end; }
.offer-copy h2 { max-width: 610px; }
.offer-copy > p:not(.eyebrow):not(.support-line) { max-width: 510px; margin: 28px 0 0; color: #f8ddd0; font-size: 17px; line-height: 1.65; }
.offer-price { display: grid; grid-template-columns: auto auto; grid-template-rows: auto auto; align-items: end; gap: 0 16px; width: fit-content; margin: 38px 0 28px; padding: 17px 20px 15px; border: 1px solid rgba(245,241,233,.45); }
.offer-price small { grid-column: 1 / -1; color: #f7d6c6; font-size: 9px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; }
.offer-price strong { font: 700 50px/.95 var(--display); letter-spacing: -.06em; }
.offer-price span { align-self: end; padding-bottom: 4px; color: #f7d6c6; font: 13px var(--serif); }
.support-line { margin: 22px 0 0; color: #f7d6c6; font-size: 12px; }
.support-line a { color: var(--ivory); text-underline-offset: 3px; }
.offer-inventory { padding-left: 25px; border-left: 1px solid rgba(245,241,233,.38); }
.inventory-label { margin: 0 0 15px; color: #f8d8c9; font-size: 9px; font-weight: 700; letter-spacing: .18em; }
.inventory-line { display: grid; grid-template-columns: 42px 1fr; align-items: baseline; gap: 9px; padding: 10px 0; border-bottom: 1px solid rgba(245,241,233,.29); }
.inventory-line span { color: var(--ivory); font: 700 20px var(--display); }
.inventory-line p { margin: 0; color: var(--ivory); font: 14px var(--serif); }
.inventory-note { margin: 23px 0 0; color: #f8d8c9; font-size: 12px; line-height: 1.6; }

.faq-section { padding: 147px 0 160px; }
.faq-layout { display: grid; grid-template-columns: .78fr 1.22fr; gap: 12vw; align-items: start; }
.faq-heading { position: sticky; top: 35px; }
.faq-list { border-top: 1px solid var(--line); }
details { border-bottom: 1px solid var(--line); }
summary { display: flex; align-items: center; justify-content: space-between; gap: 22px; padding: 23px 0; color: var(--ink); cursor: pointer; font: 700 clamp(17px, 2vw, 23px)/1.1 var(--display); letter-spacing: -.025em; list-style: none; text-transform: uppercase; }
summary::-webkit-details-marker { display: none; }
summary::after { flex: 0 0 auto; color: var(--terra); content: "+"; font: 400 28px/.7 var(--serif); transition: transform .25s ease; }
details[open] summary::after { transform: rotate(45deg); }
details p { max-width: 650px; margin: -3px 45px 23px 0; color: var(--muted); font-size: 15px; line-height: 1.65; }

.site-footer { background: var(--ink); color: var(--ivory); }
.footer-top { display: grid; grid-template-columns: 1fr .8fr auto; gap: 8vw; align-items: center; padding: 70px 0 61px; }
.brand-footer { align-self: start; }
.footer-top > p { margin: 0; color: #c1c8c1; font: 19px/1.32 var(--serif); }
.footer-cta { color: var(--terra-light); font-size: 11px; font-weight: 700; letter-spacing: .13em; text-decoration: none; text-transform: uppercase; }
.footer-cta span { margin-left: 7px; font-size: 18px; }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px 30px; padding: 16px 0 20px; border-top: 1px solid rgba(245,241,233,.2); color: #89958e; font-size: 10px; letter-spacing: .05em; }
.footer-bottom a { color: #c1c8c1; text-decoration: none; }
.footer-bottom a:hover, .footer-bottom a:focus-visible { color: white; }
.mobile-buy { display: none; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal-delay { transition-delay: .12s; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (max-width: 960px) {
  :root { --shell: min(100% - 56px, 760px); }
  .main-nav { gap: 18px; }
  .hero { min-height: 760px; }
  .hero-grid { grid-template-columns: 1.05fr .95fr; gap: 4vw; }
  .hero h1 { font-size: clamp(45px, 7vw, 69px); }
  .intro-grid, .comparison-heading { gap: 5vw; }
  .book-layout { gap: 6vw; }
  .chapters-head { gap: 7vw; }
  .work-layout, .offer-layout, .faq-layout { gap: 7vw; }
}

@media (max-width: 720px) {
  :root { --shell: calc(100% - 40px); }
  body { padding-bottom: 70px; }
  .header-inner { min-height: 76px; }
  .menu-toggle { position: relative; z-index: 22; display: grid; gap: 6px; width: 42px; height: 42px; place-content: center; }
  .menu-line { display: block; width: 24px; height: 1px; background: currentColor; transition: transform .25s ease; }
  body.menu-open .menu-line:first-of-type { transform: translateY(3.5px) rotate(45deg); }
  body.menu-open .menu-line:last-of-type { transform: translateY(-3.5px) rotate(-45deg); }
  .main-nav { position: fixed; inset: 0; z-index: 21; display: flex; visibility: hidden; flex-direction: column; align-items: flex-start; justify-content: center; gap: 25px; padding: 80px 20px 40px; background: var(--ink); opacity: 0; transform: translateY(-9px); transition: visibility .25s, opacity .25s ease, transform .25s var(--ease); }
  body.menu-open .main-nav { visibility: visible; opacity: 1; transform: translateY(0); }
  .main-nav a { font-size: 17px; }
  .nav-cta { margin-top: 11px; }
  .hero { min-height: auto; padding: 133px 0 79px; }
  .hero::before { width: 75%; }
  .hero::after { right: -25%; bottom: 31%; width: 300px; height: 300px; }
  .hero-grid { display: flex; flex-direction: column; align-items: stretch; gap: 48px; min-height: 0; }
  .hero h1 { font-size: clamp(42px, 13vw, 68px); }
  .hero-lede { margin-top: 24px; font-size: 16px; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 19px; margin-top: 28px; }
  .hero-facts { gap: 12px 22px; margin-top: 37px; }
  .hero-visual { align-self: center; width: min(100%, 470px); min-height: 420px; }
  .book-mockup { width: 52%; }
  .book-shadow { bottom: 14%; }
  .note-top { top: 4%; right: 8%; }
  .note-bottom { bottom: 7%; left: 7%; }
  .visual-coordinate { right: 9%; bottom: 25%; }
  .hero-edge { width: var(--shell); font-size: 8px; }
  .hero-edge span:last-child { display: none; }
  .intro-section, .book-section, .chapters-section, .work-section, .faq-section { padding: 92px 0 100px; }
  .intro-grid, .book-layout, .chapters-head, .comparison-heading, .work-layout, .author-layout, .offer-layout, .faq-layout { display: block; }
  .intro-statement { margin-top: 36px; }
  .intro-statement p { font-size: 16px; }
  .intro-aside { margin: 47px 0 0 auto; }
  .book-image-wrap { margin-bottom: 73px; padding-left: 26px; }
  .book-copy h2, .intro-statement h2, .chapters-head h2, .comparison-title-wrap h2, .work-copy h2, .author-copy h2, .offer-copy h2, .faq-heading h2 { font-size: clamp(38px, 12vw, 56px); }
  .book-copy > p:not(.eyebrow), .work-copy > p:not(.eyebrow):not(.fine-print), .author-copy > p:not(.eyebrow), .offer-copy > p:not(.eyebrow):not(.support-line) { font-size: 16px; }
  .chapters-head { padding-bottom: 46px; }
  .chapters-intro { margin: 27px 0 0; }
  .chapter-row { grid-template-columns: 38px minmax(0, 1fr) 18px; gap: 10px; align-items: start; padding: 20px 0; }
  .chapter-row h3 { font-size: 20px; }
  .chapter-row p { grid-column: 2 / -1; margin-top: 9px; }
  .chapter-arrow { grid-column: 3; grid-row: 1; }
  .chapter-row:hover { padding-right: 8px; padding-left: 8px; }
  .comparison-section { padding: 88px 0 100px; }
  .comparison-heading .section-index { margin-bottom: 35px; }
  .comparison-visual { margin-top: 47px; }
  .comparison-visual figcaption { display: block; }
  .comparison-visual figcaption span { display: block; margin-bottom: 8px; }
  .comparison-notes { display: block; margin-top: 45px; }
  .comparison-notes div { padding: 18px 0; }
  .comparison-notes div + div::before { top: 0; right: 0; left: 0; width: 100%; height: 1px; }
  .comparison-notes p { margin-top: 9px; font-size: 15px; }
  .work-copy { margin-bottom: 62px; }
  .paper-frame { padding: 15px; }
  .author-section { padding: 90px 0 105px; }
  .author-index { min-height: 190px; }
  .author-initial { bottom: -8%; left: -7%; font-size: 250px; }
  .author-copy { padding-top: 0; }
  .social-link { margin-top: 30px; }
  .offer-section { padding: 93px 0 102px; }
  .offer-inventory { margin-top: 60px; padding: 23px 0 0; border-top: 1px solid rgba(245,241,233,.38); border-left: 0; }
  .faq-heading { position: static; margin-bottom: 47px; }
  summary { padding: 21px 0; font-size: 19px; }
  details p { margin-right: 10px; font-size: 14px; }
  .footer-top { display: block; padding: 56px 0 45px; }
  .footer-top > p { margin: 40px 0; font-size: 18px; }
  .footer-bottom { display: grid; grid-template-columns: 1fr; gap: 9px; padding-bottom: 92px; }
  .mobile-buy { position: fixed; right: 12px; bottom: 12px; left: 12px; z-index: 50; display: flex; align-items: center; justify-content: center; gap: 10px; min-height: 50px; padding: 12px 18px; background: var(--terra); box-shadow: 0 8px 28px rgba(0,0,0,.24); color: white; font-size: 12px; font-weight: 700; letter-spacing: .1em; text-decoration: none; text-transform: uppercase; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}

@media (min-width: 721px) {
  .mobile-buy { display: none !important; }
}