:root {
  --navy-950: #05263d;
  --navy-900: #07395c;
  --navy-800: #0b4c75;
  --blue-700: #087fb4;
  --blue-600: #0797d1;
  --blue-500: #18a9e0;
  --blue-100: #d8f1fb;
  --blue-50: #edf9fd;
  --gold-500: #f5b82e;
  --gold-400: #ffc641;
  --gold-100: #fff0be;
  --slate-800: #263b4a;
  --slate-700: #465c6c;
  --slate-600: #667987;
  --slate-300: #bdcad3;
  --slate-200: #d9e3e9;
  --slate-100: #ebf1f5;
  --grey-50: #f7f9fa;
  --white: #ffffff;
  --shadow: 0 24px 60px rgba(5, 38, 61, 0.18);
  --container: 1180px;
  --radius: 18px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--slate-800);
  background: var(--white);
  font-family: "Libre Franklin", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
button { font: inherit; }
.container { width: min(calc(100% - 40px), var(--container)); margin-inline: auto; }
.section { padding: 105px 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; }
.skip-link { position: fixed; left: 16px; top: -100px; z-index: 1000; padding: 10px 16px; color: var(--white); background: var(--navy-950); border-radius: 0 0 8px 8px; }
.skip-link:focus { top: 0; }

h1, h2, h3 { margin: 0; color: var(--navy-950); font-family: "Source Serif 4", Georgia, serif; line-height: 1.12; }
h1 { font-size: clamp(2.75rem, 5vw, 4.75rem); letter-spacing: -0.045em; }
h2 { font-size: clamp(2.15rem, 4vw, 3.7rem); letter-spacing: -0.035em; }
h3 { font-size: clamp(1.25rem, 2vw, 1.65rem); }
p { margin: 0 0 1.25em; }
p:last-child { margin-bottom: 0; }
.eyebrow { margin-bottom: 15px; color: var(--blue-700); font-size: .76rem; font-weight: 800; letter-spacing: .16em; line-height: 1.45; text-transform: uppercase; }
.eyebrow-gold { color: var(--gold-500); }
.eyebrow-light { color: #9bdcf5; }
.lead { color: var(--navy-900); font-family: "Source Serif 4", Georgia, serif; font-size: 1.4rem; line-height: 1.5; }

.site-header { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,.96); border-bottom: 1px solid rgba(189,202,211,.7); backdrop-filter: blur(12px); }
.nav-wrap { min-height: 82px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: flex; flex-direction: column; text-decoration: none; line-height: 1.2; }
.brand-title { color: var(--navy-950); font-family: "Source Serif 4", Georgia, serif; font-size: 1.15rem; font-weight: 700; }
.brand-author { margin-top: 3px; color: var(--blue-700); font-size: .62rem; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
.primary-nav { display: flex; align-items: center; gap: 25px; }
.primary-nav a { color: var(--slate-700); font-size: .86rem; font-weight: 700; text-decoration: none; }
.primary-nav a:hover, .primary-nav a:focus-visible { color: var(--blue-700); }
.primary-nav .nav-buy { padding: 10px 17px; color: var(--navy-950); background: var(--gold-500); border-radius: 5px; }
.primary-nav .nav-buy:hover, .primary-nav .nav-buy:focus-visible { color: var(--navy-950); background: var(--gold-400); }
.menu-button { display: none; width: 46px; height: 42px; padding: 9px; background: transparent; border: 0; border-radius: 8px; }
.menu-button span:not(.visually-hidden) { display: block; height: 2px; margin: 5px 0; background: var(--navy-900); }

.hero { position: relative; overflow: hidden; color: var(--white); background: linear-gradient(122deg, var(--navy-950), var(--navy-900) 60%, #075a85); }
.hero-pattern { position: absolute; inset: 0; opacity: .12; background-image: radial-gradient(circle at 20% 20%, var(--blue-500) 0 2px, transparent 3px), radial-gradient(circle at 80% 65%, var(--gold-500) 0 2px, transparent 3px); background-size: 68px 68px, 92px 92px; }
.hero::after { content: ""; position: absolute; width: 540px; height: 540px; right: -180px; top: -210px; border: 90px solid rgba(24,169,224,.12); border-radius: 50%; }
.hero-grid { position: relative; z-index: 2; min-height: 660px; padding-top: 65px; padding-bottom: 70px; display: grid; grid-template-columns: .75fr 1.25fr; align-items: center; gap: 85px; }
.book-stage { position: relative; width: min(100%, 365px); justify-self: center; }
.cover-glow { position: absolute; width: 88%; height: 92%; left: -25px; bottom: -25px; background: var(--gold-500); border-radius: 4px; transform: rotate(-4deg); }
.hero-cover { position: relative; z-index: 2; width: 100%; box-shadow: 0 30px 65px rgba(0,0,0,.42); transform: rotate(1.5deg); }
.published-badge { position: absolute; z-index: 3; right: -42px; bottom: 45px; padding: 9px 14px; color: var(--navy-950); background: var(--white); border-left: 5px solid var(--gold-500); box-shadow: 0 10px 25px rgba(0,0,0,.18); font-size: .7rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.hero-copy { max-width: 700px; }
.hero-copy h1 { color: var(--white); }
.hero-title { margin: 24px 0 12px; color: var(--gold-100); font-family: "Source Serif 4", Georgia, serif; font-size: 1.35rem; font-weight: 600; }
.hero-intro { max-width: 670px; color: var(--blue-100); font-size: 1.02rem; }
.hero-actions { margin-top: 30px; display: flex; flex-wrap: wrap; gap: 16px; }
.retailer-note { margin-top: 16px; color: #a9d8ea; font-size: .72rem; }

.button { display: inline-flex; min-height: 51px; padding: 13px 23px; align-items: center; justify-content: center; border: 2px solid transparent; border-radius: 5px; font-size: .9rem; font-weight: 800; line-height: 1.2; text-align: center; text-decoration: none; transition: transform 160ms ease, background 160ms ease, border-color 160ms ease; }
.button:hover { transform: translateY(-2px); }
.button-gold { color: var(--navy-950); background: var(--gold-500); }
.button-gold:hover, .button-gold:focus-visible { background: var(--gold-400); }
.button-outline { color: var(--white); border-color: rgba(255,255,255,.5); }
.button-outline:hover, .button-outline:focus-visible { border-color: var(--white); }
.button-navy { color: var(--white); background: var(--navy-900); }
.button-navy:hover, .button-navy:focus-visible { background: var(--blue-700); }
.button-light { color: var(--navy-950); background: var(--white); }
.button-light:hover, .button-light:focus-visible { background: var(--gold-100); }
.text-link { color: var(--blue-700); font-size: .9rem; font-weight: 800; text-decoration-thickness: 1px; text-underline-offset: 5px; }
.text-link span { margin-left: 4px; }

.question-strip { padding: 47px 0; background: var(--gold-500); }
.question-grid { display: grid; grid-template-columns: 90px 1fr; align-items: center; gap: 30px; }
.question-mark { margin: 0; color: var(--navy-950); font-family: "Source Serif 4", Georgia, serif; font-size: 6.4rem; font-weight: 700; line-height: .8; opacity: .26; }
.question-strip .eyebrow { color: var(--navy-800); }
.question-strip h2 { max-width: 930px; font-size: clamp(1.8rem, 3vw, 2.85rem); }

.intro-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 100px; }
.section-heading h2 { max-width: 540px; }
.intro-copy { max-width: 680px; color: var(--slate-700); }

.decision-section { color: var(--white); background: var(--navy-950); }
.decision-grid { display: grid; grid-template-columns: .9fr 1.1fr; align-items: start; gap: 95px; }
.decision-copy { position: sticky; top: 120px; }
.decision-copy h2 { color: var(--white); }
.decision-copy > p:last-child { margin-top: 25px; color: var(--blue-100); }
.decision-list { margin: 0; padding: 0; list-style: none; }
.decision-list li { padding: 27px 0; display: grid; grid-template-columns: 55px 1fr; gap: 20px; border-bottom: 1px solid rgba(216,241,251,.2); }
.decision-list li:first-child { border-top: 1px solid rgba(216,241,251,.2); }
.decision-list > li > span { color: var(--gold-500); font-size: .74rem; font-weight: 800; }
.decision-list h3 { margin-bottom: 6px; color: var(--white); font-family: "Libre Franklin", Arial, sans-serif; font-size: 1.05rem; }
.decision-list p { color: var(--blue-100); font-size: .88rem; }

.options { background: var(--grey-50); }
.options-heading { margin-bottom: 60px; display: grid; grid-template-columns: 1.2fr .8fr; align-items: end; gap: 70px; }
.options-heading > p { color: var(--slate-700); }
.option-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.option-card { min-height: 285px; padding: 34px; background: var(--white); border: 1px solid var(--slate-200); border-top: 5px solid var(--blue-600); border-radius: 8px; transition: transform 160ms ease, box-shadow 160ms ease; }
.option-card:hover { transform: translateY(-4px); box-shadow: 0 15px 35px rgba(5,38,61,.1); }
.option-card > span { display: block; margin-bottom: 36px; color: var(--gold-500); font-size: .72rem; font-weight: 800; }
.option-card h3 { margin-bottom: 13px; font-family: "Libre Franklin", Arial, sans-serif; font-size: 1.05rem; }
.option-card p { color: var(--slate-700); font-size: .88rem; }

.audience { background: var(--blue-50); }
.audience-heading { max-width: 780px; margin-bottom: 55px; }
.audience-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.audience-grid article { padding: 40px 34px; background: var(--white); border-radius: var(--radius); box-shadow: 0 15px 35px rgba(5,38,61,.07); }
.audience-label { margin-bottom: 18px; color: var(--blue-700); font-size: .74rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.audience-grid h3 { margin-bottom: 16px; }
.audience-grid article > p:last-child { color: var(--slate-700); font-size: .9rem; }

.inside-grid { display: grid; grid-template-columns: .8fr 1.2fr; align-items: center; gap: 95px; }
.cover-pair { position: relative; min-height: 590px; }
.cover-pair img { position: absolute; width: 265px; box-shadow: var(--shadow); }
.cover-pair .back-cover { left: 0; top: 15px; transform: rotate(-5deg); }
.cover-pair .front-cover { right: 10px; bottom: 0; transform: rotate(4deg); }
.inside-copy h2 { max-width: 650px; }
.book-parts { margin: 35px 0; }
.book-parts article { padding: 22px 0; display: grid; grid-template-columns: 75px 1fr; column-gap: 22px; border-bottom: 1px solid var(--slate-200); }
.book-parts article:first-child { border-top: 1px solid var(--slate-200); }
.book-parts span { grid-row: 1 / span 2; color: var(--blue-700); font-size: .72rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.book-parts h3 { margin-bottom: 6px; font-family: "Libre Franklin", Arial, sans-serif; font-size: 1rem; }
.book-parts p { color: var(--slate-700); font-size: .86rem; }

.author { background: var(--grey-50); }
.author-grid { display: grid; grid-template-columns: .65fr 1.35fr; align-items: center; gap: 80px; }
.author-photo-wrap { position: relative; width: min(100%, 360px); aspect-ratio: 1 / 1; overflow: hidden; border-radius: 50% 50% 10px 10px; box-shadow: var(--shadow); }
.author-photo-wrap::after { content: ""; position: absolute; inset: auto 0 0; height: 8px; background: var(--gold-500); }
.author-photo-wrap img { width: 100%; height: 100%; object-fit: cover; object-position: center 19%; }
.author-copy { max-width: 700px; }
.author-copy > p:not(.eyebrow) { color: var(--slate-700); }
.author-copy .lead { color: var(--navy-900); }
.author-actions { margin-top: 30px; display: flex; align-items: center; flex-wrap: wrap; gap: 25px; }

.newsletter { padding: 75px 0; color: var(--white); background: var(--blue-700); }
.newsletter-grid { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 90px; }
.newsletter h2 { color: var(--white); font-size: clamp(2rem, 3.4vw, 3.15rem); }
.newsletter-grid > div:last-child > p { color: var(--blue-100); }
.newsletter .button { margin-top: 12px; }

.final-cta { padding: 80px 0; background: var(--white); }
.final-cta-inner { padding: 55px 60px; display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 60px; background: var(--blue-50); border-left: 8px solid var(--gold-500); border-radius: 0 var(--radius) var(--radius) 0; }
.final-cta h2 { max-width: 760px; font-size: clamp(2rem, 3.2vw, 3rem); }

.site-footer { padding: 52px 0 25px; color: var(--blue-100); background: var(--navy-950); }
.footer-main { padding-bottom: 35px; display: flex; justify-content: space-between; gap: 45px; border-bottom: 1px solid rgba(216,241,251,.2); }
.footer-main strong { color: var(--white); font-family: "Source Serif 4", Georgia, serif; font-size: 1.15rem; }
.footer-main p { margin-top: 5px; font-size: .78rem; }
.footer-links { display: flex; align-items: flex-start; flex-wrap: wrap; gap: 22px; }
.footer-links a { color: var(--white); font-size: .78rem; font-weight: 700; text-decoration: none; }
.footer-links a:hover, .footer-links a:focus-visible { text-decoration: underline; text-underline-offset: 4px; }
.footer-bottom { padding-top: 22px; display: flex; justify-content: space-between; gap: 30px; color: #9bc5d7; font-size: .68rem; }
.footer-bottom p { margin: 0; }

.privacy-hero { padding: 70px 0; background: linear-gradient(120deg, var(--blue-50), var(--white)); }
.privacy-hero h1 { max-width: 780px; }
.privacy-hero p:last-child { max-width: 780px; margin-top: 20px; color: var(--slate-700); }
.privacy-content { padding: 75px 0 95px; }
.privacy-document { max-width: 820px; }
.privacy-updated { color: var(--slate-600); font-size: .85rem; }
.privacy-document h2 { margin: 45px 0 14px; font-size: clamp(1.55rem, 2.5vw, 2.2rem); }
.privacy-document p, .privacy-document li { color: var(--slate-700); }
.privacy-document ul { padding-left: 23px; }
.privacy-document a { color: var(--blue-700); text-underline-offset: 4px; }

.error-page { min-height: calc(100vh - 82px); display: grid; place-items: center; padding: 70px 0; text-align: center; background: var(--blue-50); }
.error-page .error-code { margin: 0; color: var(--gold-500); font-family: "Source Serif 4", Georgia, serif; font-size: 7rem; font-weight: 700; line-height: 1; }
.error-page h1 { margin: 10px 0 20px; }
.error-page p { max-width: 600px; margin: 0 auto 28px; color: var(--slate-700); }

:focus-visible { outline: 3px solid var(--gold-500); outline-offset: 3px; }

@media (max-width: 960px) {
  .menu-button { display: block; }
  .primary-nav { position: absolute; left: 0; right: 0; top: 82px; padding: 22px 20px 28px; display: none; flex-direction: column; align-items: stretch; gap: 7px; background: var(--white); border-bottom: 1px solid var(--slate-200); box-shadow: 0 15px 25px rgba(5,38,61,.1); }
  .primary-nav.open { display: flex; }
  .primary-nav a { padding: 9px 12px; }
  .primary-nav .nav-buy { text-align: center; }
  .hero-grid { grid-template-columns: .8fr 1.2fr; gap: 55px; }
  .option-grid { grid-template-columns: repeat(2, 1fr); }
  .inside-grid { gap: 55px; }
  .cover-pair { min-height: 500px; }
  .cover-pair img { width: 225px; }
}

@media (max-width: 760px) {
  body { font-size: 16px; }
  .container { width: min(calc(100% - 28px), var(--container)); }
  .section { padding: 75px 0; }
  .nav-wrap { min-height: 72px; }
  .primary-nav { top: 72px; }
  .brand-title { font-size: 1rem; }
  .brand-author { font-size: .56rem; }
  .hero-grid { min-height: 0; padding-top: 55px; grid-template-columns: 1fr; text-align: center; }
  .book-stage { width: min(72vw, 310px); }
  .published-badge { right: -18px; }
  .hero-copy { margin-inline: auto; }
  .hero-actions { justify-content: center; }
  .question-grid { grid-template-columns: 55px 1fr; gap: 15px; }
  .question-mark { font-size: 4.6rem; }
  .intro-grid, .decision-grid, .options-heading, .inside-grid, .author-grid, .newsletter-grid { grid-template-columns: 1fr; gap: 45px; }
  .decision-copy { position: static; }
  .audience-grid { grid-template-columns: 1fr; }
  .cover-pair { width: min(100%, 470px); min-height: 510px; margin-inline: auto; }
  .cover-pair img { width: 235px; }
  .author-photo-wrap { margin-inline: auto; }
  .author-copy { text-align: center; }
  .author-actions { justify-content: center; }
  .final-cta-inner { padding: 42px 32px; grid-template-columns: 1fr; gap: 30px; }
  .footer-main, .footer-bottom { flex-direction: column; }
}

@media (max-width: 520px) {
  .hero-actions, .author-actions { align-items: stretch; flex-direction: column; }
  .hero-actions .button, .author-actions .button { width: 100%; }
  .option-grid { grid-template-columns: 1fr; }
  .option-card { min-height: 0; }
  .cover-pair { min-height: 420px; }
  .cover-pair img { width: 190px; }
  .book-parts article { grid-template-columns: 1fr; }
  .book-parts span { grid-row: auto; margin-bottom: 7px; }
  .footer-links { flex-direction: column; gap: 12px; }
}

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