:root {
  --forest: #173f39;
  --forest-deep: #0d2c28;
  --forest-soft: #2f5c53;
  --sage: #789486;
  --sage-pale: #dce6dd;
  --ivory: #f8f4eb;
  --paper: #fffdf8;
  --ink: #1e2926;
  --muted: #66736f;
  --gold: #c9993f;
  --gold-light: #e3c477;
  --line: rgba(23, 63, 57, 0.15);
  --shadow: 0 30px 80px rgba(17, 47, 42, 0.16);
  --serif: Georgia, "Times New Roman", serif;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--ivory);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }

.skip-link {
  position: fixed;
  left: 1rem;
  top: -5rem;
  z-index: 999;
  padding: .75rem 1rem;
  color: white;
  background: var(--forest-deep);
  border-radius: .4rem;
}
.skip-link:focus { top: 1rem; }
.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;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  min-height: 92px;
  display: grid;
  grid-template-columns: minmax(170px, 250px) 1fr auto;
  align-items: center;
  gap: 2rem;
  padding: .55rem clamp(1.25rem, 4vw, 4.5rem);
  border-bottom: 1px solid rgba(255,255,255,.16);
  background: rgba(13, 44, 40, .94);
  color: white;
  backdrop-filter: blur(18px);
}
.brand { width: min(240px, 22vw); }
.brand img {
  width: 100%;
  max-height: 78px;
  object-fit: contain;
  filter: brightness(0) invert(1) sepia(.35) saturate(.8);
}
.site-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(1rem, 2.5vw, 2.4rem);
}
.site-nav a,
.footer-links a {
  text-decoration: none;
  font-size: .86rem;
  letter-spacing: .06em;
}
.site-nav a { color: rgba(255,255,255,.78); }
.site-nav a:hover,
.site-nav a:focus-visible { color: var(--gold-light); }
.header-cta {
  padding: .75rem 1.15rem;
  border: 1px solid rgba(227,196,119,.7);
  border-radius: 999px;
  color: var(--gold-light);
  text-decoration: none;
  font-size: .84rem;
  font-weight: 650;
  letter-spacing: .04em;
  transition: .25s ease;
}
.header-cta:hover { color: var(--forest-deep); background: var(--gold-light); }
.menu-toggle { display: none; }

.hero {
  position: relative;
  isolation: isolate;
  min-height: calc(100svh - 92px);
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(430px, 1.08fr);
  align-items: center;
  overflow: hidden;
  padding: clamp(4rem, 8vw, 8rem) clamp(1.35rem, 6vw, 7.5rem);
  color: white;
  background:
    radial-gradient(circle at 82% 30%, rgba(215,171,85,.18), transparent 26%),
    linear-gradient(125deg, #0c2a26 0%, #173f39 52%, #315f54 100%);
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  opacity: .15;
  background-image: repeating-linear-gradient(115deg, transparent 0 48px, rgba(255,255,255,.1) 49px 50px);
  mask-image: linear-gradient(to right, transparent, black);
}
.hero-orbit {
  position: absolute;
  z-index: -1;
  border: 1px solid rgba(227,196,119,.2);
  border-radius: 50%;
}
.orbit-one { width: 620px; height: 620px; right: -110px; top: -170px; }
.orbit-two { width: 380px; height: 380px; right: 20%; bottom: -240px; }
.hero-copy { position: relative; z-index: 2; max-width: 720px; }
.eyebrow {
  margin: 0 0 1rem;
  color: var(--gold);
  font-size: .78rem;
  font-weight: 750;
  letter-spacing: .18em;
  text-transform: uppercase;
}
.hero .eyebrow { color: var(--gold-light); }
h1, h2, h3, p { overflow-wrap: break-word; }
h1, h2, h3 { margin-top: 0; line-height: 1.08; }
h1 {
  max-width: 690px;
  margin-bottom: 1.5rem;
  font-family: var(--serif);
  font-size: clamp(3.2rem, 6.2vw, 7.2rem);
  font-weight: 400;
  letter-spacing: -.045em;
}
h1 em { color: var(--gold-light); font-weight: 400; }
h2 {
  font-family: var(--serif);
  font-size: clamp(2.35rem, 4.2vw, 4.9rem);
  font-weight: 400;
  letter-spacing: -.035em;
}
h3 { font-size: 1.25rem; }
.book-title {
  margin: 0 0 1rem;
  color: var(--gold-light);
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  font-weight: 750;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.hero-lead {
  max-width: 650px;
  margin: 0;
  color: rgba(255,255,255,.8);
  font-size: clamp(1.03rem, 1.4vw, 1.2rem);
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.2rem 1.6rem;
  margin: 2rem 0 2.4rem;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  min-height: 52px;
  padding: .85rem 1.35rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 750;
  transition: transform .25s ease, background .25s ease, color .25s ease;
}
.button:hover { transform: translateY(-2px); }
.button-gold { color: var(--forest-deep); background: var(--gold-light); }
.button-gold:hover { background: white; }
.button-light { color: var(--forest-deep); background: var(--paper); }
.button-light:hover { background: var(--gold-light); }
.text-link {
  display: inline-flex;
  gap: .7rem;
  color: rgba(255,255,255,.86);
  text-underline-offset: .35rem;
  text-decoration-thickness: 1px;
  font-size: .93rem;
  font-weight: 650;
}
.text-link:hover { color: var(--gold-light); }
.text-link.dark { color: var(--forest); }
.text-link.dark:hover { color: #986e25; }
.book-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 1.15rem;
  margin: 0 0 1.4rem;
}
.book-facts div {
  min-width: 112px;
  padding-right: 1.15rem;
  border-right: 1px solid rgba(255,255,255,.18);
}
.book-facts div:last-child { border: 0; }
.book-facts dt {
  color: white;
  font-family: var(--serif);
  font-size: 1.55rem;
  line-height: 1.2;
}
.book-facts dd { margin: .2rem 0 0; color: rgba(255,255,255,.57); font-size: .75rem; letter-spacing: .08em; text-transform: uppercase; }
.hero-note {
  max-width: 650px;
  margin: 0;
  padding-top: 1.1rem;
  border-top: 1px solid rgba(255,255,255,.14);
  color: rgba(255,255,255,.56);
  font-size: .78rem;
  line-height: 1.55;
}
.hero-visual { position: relative; z-index: 1; }
.image-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 50% 50% 2rem 2rem / 15% 15% 2rem 2rem;
  box-shadow: 0 45px 100px rgba(2, 19, 16, .32);
}
.image-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  box-shadow: inset 0 0 0 10px rgba(255,255,255,.035);
  pointer-events: none;
}
.image-frame img { width: 100%; aspect-ratio: 1.25; object-fit: cover; }
.visual-caption {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .75rem;
  margin: 1.25rem 0 0;
  color: rgba(255,255,255,.6);
  font-size: .74rem;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.visual-caption span { width: 28px; height: 1px; background: var(--gold-light); }

.intro-section,
.contents-section,
.author-section,
.faq-section {
  padding: clamp(5rem, 9vw, 9rem) clamp(1.35rem, 7vw, 9rem);
}
.section-heading {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 4rem;
  align-items: end;
  margin-bottom: clamp(2.5rem, 5vw, 5rem);
}
.section-heading h2 { max-width: 800px; margin-bottom: 0; }
.section-heading > p { max-width: 610px; margin: 0; color: var(--muted); }
.section-heading.compact { grid-template-columns: 1fr; }

.topic-explorer {
  display: grid;
  grid-template-columns: .76fr 1.24fr;
  min-height: 430px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 1.5rem;
  background: var(--paper);
  box-shadow: 0 28px 65px rgba(43, 69, 61, .08);
}
.topic-tabs { display: grid; background: #eef1e9; }
.topic-tab {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  padding: 1.25rem 1.5rem;
  border: 0;
  border-bottom: 1px solid rgba(23,63,57,.1);
  color: var(--forest);
  background: transparent;
  text-align: left;
  cursor: pointer;
}
.topic-tab:last-child { border-bottom: 0; }
.topic-tab span { color: var(--gold); font-family: var(--serif); font-size: .9rem; }
.topic-tab.is-active { color: white; background: var(--forest); }
.topic-tab.is-active span { color: var(--gold-light); }
.topic-tab:focus-visible { outline: 3px solid var(--gold-light); outline-offset: -4px; }
.topic-panel {
  position: relative;
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 2rem;
  align-items: center;
  padding: clamp(2rem, 5vw, 5rem);
}
.topic-number {
  margin: 0;
  color: rgba(201,153,63,.28);
  font-family: var(--serif);
  font-size: 4.5rem;
}
.panel-kicker {
  margin: 0 0 .65rem;
  color: var(--gold);
  font-size: .76rem;
  font-weight: 750;
  letter-spacing: .15em;
  text-transform: uppercase;
}
.topic-panel h3 { max-width: 680px; margin-bottom: 1rem; color: var(--forest); font-family: var(--serif); font-size: clamp(1.8rem, 3vw, 3rem); font-weight: 400; }
.topic-panel p:not(.topic-number, .panel-kicker, .reflection) { max-width: 700px; color: var(--muted); }
.reflection { margin: 1.5rem 0 0; padding-left: 1rem; border-left: 2px solid var(--gold); color: var(--forest-soft); font-style: italic; }

.expect-section {
  padding: clamp(5rem, 8vw, 8rem) clamp(1.35rem, 7vw, 9rem);
  color: white;
  background: var(--forest);
}
.expect-section .eyebrow { color: var(--gold-light); }
.expect-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid rgba(255,255,255,.16); }
.expect-card {
  min-height: 300px;
  padding: 2rem clamp(1rem, 2.4vw, 2.4rem);
  border-right: 1px solid rgba(255,255,255,.16);
}
.expect-card:last-child { border-right: 0; }
.card-index { display: block; margin-bottom: 4rem; color: var(--gold-light); font-family: var(--serif); }
.expect-card h3 { margin-bottom: 1rem; font-family: var(--serif); font-size: 1.45rem; font-weight: 400; }
.expect-card p { margin: 0; color: rgba(255,255,255,.65); font-size: .95rem; }

.contents-section { display: grid; grid-template-columns: .72fr 1.28fr; gap: clamp(3rem, 7vw, 8rem); background: #eef1e9; }
.contents-intro { position: sticky; top: 140px; align-self: start; }
.contents-intro h2 { font-size: clamp(2.3rem, 3.8vw, 4.1rem); }
.contents-intro > p:last-child { color: var(--muted); }
.chapter-groups { border-top: 1px solid rgba(23,63,57,.24); }
.chapter-group { border-bottom: 1px solid rgba(23,63,57,.24); }
.chapter-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.5rem 0;
  border: 0;
  color: var(--forest);
  background: transparent;
  text-align: left;
  cursor: pointer;
}
.chapter-trigger b { display: block; margin-bottom: .15rem; color: var(--gold); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; }
.chapter-trigger i { display: grid; place-items: center; flex: 0 0 36px; height: 36px; border: 1px solid rgba(23,63,57,.3); border-radius: 50%; font-style: normal; }
.chapter-list { padding: 0 0 1.4rem; }
.chapter-list p { display: grid; grid-template-columns: 44px 1fr; gap: .75rem; margin: .6rem 0; color: var(--muted); font-size: .94rem; line-height: 1.45; }
.chapter-list span { color: var(--gold); font-family: var(--serif); }

.quote-section {
  display: grid;
  place-items: center;
  padding: clamp(5rem, 10vw, 10rem) 1.5rem;
  text-align: center;
  background: var(--paper);
}
.quote-mark { height: 3.5rem; color: var(--gold); font-family: var(--serif); font-size: 6rem; line-height: 1; }
.quote-section blockquote { max-width: 980px; margin: 1rem auto; color: var(--forest); font-family: var(--serif); font-size: clamp(2rem, 4.7vw, 5rem); line-height: 1.15; }
.quote-section p { margin: 1.3rem 0 0; color: var(--muted); font-size: .75rem; letter-spacing: .12em; text-transform: uppercase; }

.author-section {
  display: grid;
  grid-template-columns: minmax(320px, .85fr) minmax(0, 1.15fr);
  gap: clamp(3rem, 8vw, 9rem);
  align-items: center;
  color: white;
  background: var(--forest-deep);
}
.author-image { position: relative; max-width: 540px; }
.author-image img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; object-position: center 18%; border-radius: 48% 48% 1.5rem 1.5rem / 18% 18% 1.5rem 1.5rem; filter: saturate(.84); }
.author-badge { position: absolute; right: -2rem; bottom: 2rem; padding: 1rem 1.4rem; color: var(--forest-deep); background: var(--gold-light); box-shadow: var(--shadow); }
.author-badge span { display: block; font-size: .7rem; letter-spacing: .12em; text-transform: uppercase; }
.author-badge strong { font-family: var(--serif); font-size: 1.2rem; font-weight: 400; }
.author-section .eyebrow { color: var(--gold-light); }
.author-copy h2 { margin-bottom: 1rem; }
.author-role { color: var(--gold-light); font-size: .9rem; font-weight: 700; letter-spacing: .03em; }
.author-lead { font-family: var(--serif); font-size: clamp(1.4rem, 2.4vw, 2.1rem); line-height: 1.35; }
.author-copy > p:not(.eyebrow, .author-role, .author-lead) { color: rgba(255,255,255,.68); }
.author-copy .text-link.dark { margin-top: 1rem; color: white; }

.notice-section {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 2rem;
  max-width: 1160px;
  margin: 0 auto;
  padding: clamp(4rem, 7vw, 7rem) 1.5rem;
}
.notice-icon { display: grid; place-items: center; width: 54px; height: 54px; border: 1px solid var(--gold); border-radius: 50%; color: var(--gold); font-family: var(--serif); font-size: 1.4rem; }
.notice-section h2 { margin-bottom: 1.2rem; font-size: clamp(2rem, 3.3vw, 3.4rem); }
.notice-section p:not(.eyebrow) { color: var(--muted); }

.faq-section { display: grid; grid-template-columns: .65fr 1.35fr; gap: clamp(3rem, 8vw, 9rem); background: #eef1e9; }
.faq-heading { position: sticky; top: 140px; align-self: start; }
.faq-list { border-top: 1px solid rgba(23,63,57,.24); }
.faq-list details { border-bottom: 1px solid rgba(23,63,57,.24); }
.faq-list summary { display: flex; justify-content: space-between; align-items: center; gap: 1.4rem; padding: 1.4rem 0; color: var(--forest); font-weight: 720; cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary span { color: var(--gold); font-family: var(--serif); font-size: 1.5rem; font-weight: 400; }
.faq-list details[open] summary span { transform: rotate(45deg); }
.faq-list details p { margin: 0; padding: 0 3rem 1.4rem 0; color: var(--muted); }

.closing-section {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(5rem, 10vw, 10rem) 1.5rem;
  color: white;
  text-align: center;
  background: linear-gradient(130deg, var(--forest-deep), var(--forest-soft));
}
.closing-glow { position: absolute; z-index: -1; width: 650px; height: 650px; left: 50%; top: 50%; transform: translate(-50%, -50%); border: 1px solid rgba(227,196,119,.18); border-radius: 50%; box-shadow: 0 0 120px rgba(227,196,119,.12) inset; }
.closing-copy { max-width: 850px; margin: 0 auto; }
.closing-section .eyebrow { color: var(--gold-light); }
.closing-section h2 { font-size: clamp(2.4rem, 5vw, 5.3rem); }
.closing-section p { max-width: 680px; margin: 0 auto 2rem; color: rgba(255,255,255,.72); }
.closing-section small { display: block; margin-top: 1.2rem; color: rgba(255,255,255,.5); }

.site-footer {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 2rem;
  align-items: center;
  padding: 2.2rem clamp(1.35rem, 5vw, 5rem);
  color: white;
  background: #071d1a;
}
.footer-brand { width: 230px; }
.footer-brand img { width: 100%; max-height: 90px; object-fit: contain; filter: brightness(0) invert(1) sepia(.3) saturate(.7); }
.footer-contact p { margin: 0 0 .25rem; color: rgba(255,255,255,.62); font-size: .84rem; line-height: 1.5; }
.footer-contact a { color: var(--gold-light); font-size: .85rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: 1rem; }
.footer-links a { color: rgba(255,255,255,.65); }
.copyright { grid-column: 1 / -1; margin: 0; padding-top: 1rem; border-top: 1px solid rgba(255,255,255,.1); color: rgba(255,255,255,.35); font-size: .73rem; }

.legal-page { background: #eef1e9; }
.legal-header {
  position: static;
  grid-template-columns: 1fr auto;
}
.legal-header .header-cta { justify-self: end; }
.legal-main { max-width: 980px; margin: 0 auto; padding: clamp(4rem, 8vw, 8rem) 1.5rem; }
.legal-card { padding: clamp(2rem, 5vw, 4rem); border: 1px solid var(--line); border-radius: 1.5rem; background: var(--paper); box-shadow: 0 25px 60px rgba(23,63,57,.08); }
.legal-card h1 { color: var(--forest); font-size: clamp(2.7rem, 5vw, 5rem); }
.legal-card h2 { margin-top: 2.5rem; margin-bottom: .8rem; color: var(--forest); font-size: 1.6rem; }
.legal-card h3 { margin-top: 1.7rem; color: var(--forest); }
.legal-card p, .legal-card li { color: var(--muted); }
.legal-card a { color: var(--forest); }
.legal-note { padding: 1rem 1.2rem; border-left: 3px solid var(--gold); background: #f4efe2; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .65s ease, transform .65s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

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

@media (max-width: 1050px) {
  .site-header { grid-template-columns: minmax(170px, 230px) 1fr auto; }
  .site-nav { gap: 1.1rem; }
  .site-nav a { font-size: .78rem; }
  .hero { grid-template-columns: 1fr 1fr; padding-left: 3rem; padding-right: 3rem; }
  .expect-grid { grid-template-columns: repeat(2, 1fr); }
  .expect-card:nth-child(2) { border-right: 0; }
  .expect-card:nth-child(-n+2) { border-bottom: 1px solid rgba(255,255,255,.16); }
}

@media (max-width: 820px) {
  .site-header { grid-template-columns: 1fr auto; min-height: 78px; }
  .brand { width: 205px; }
  .header-cta { display: none; }
  .menu-toggle {
    display: grid;
    place-content: center;
    gap: 7px;
    width: 46px;
    height: 46px;
    padding: 0;
    border: 1px solid rgba(255,255,255,.25);
    border-radius: 50%;
    background: transparent;
  }
  .menu-toggle span:not(.sr-only) { display: block; width: 20px; height: 1px; background: white; }
  .site-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 1rem 1.5rem 1.5rem;
    background: rgba(13,44,40,.98);
  }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: .85rem 0; border-bottom: 1px solid rgba(255,255,255,.1); font-size: .9rem; }
  .hero { min-height: auto; grid-template-columns: 1fr; gap: 3rem; padding: 5rem 1.5rem; }
  .hero-copy { max-width: 760px; }
  .hero-visual { max-width: 690px; margin: 0 auto; }
  .section-heading, .contents-section, .author-section, .faq-section { grid-template-columns: 1fr; }
  .section-heading { gap: 1.4rem; }
  .contents-intro, .faq-heading { position: static; }
  .topic-explorer { grid-template-columns: 1fr; }
  .topic-tabs { grid-template-columns: repeat(2, 1fr); }
  .topic-tab:nth-child(2) { border-right: 0; }
  .topic-tab { border-right: 1px solid rgba(23,63,57,.1); }
  .author-image { width: min(86%, 500px); margin: 0 auto; }
  .author-badge { right: -1rem; }
  .site-footer { grid-template-columns: 1fr 1fr; }
  .footer-links { justify-content: flex-end; }
}

@media (max-width: 560px) {
  body { font-size: 16px; }
  h1 { font-size: clamp(3rem, 15vw, 4.4rem); }
  .hero { padding-top: 3.5rem; }
  .hero-actions { align-items: flex-start; flex-direction: column; }
  .book-facts { gap: .7rem; }
  .book-facts div { min-width: 88px; padding-right: .7rem; }
  .image-frame { border-radius: 42% 42% 1.2rem 1.2rem / 12% 12% 1.2rem 1.2rem; }
  .intro-section, .contents-section, .author-section, .faq-section { padding-left: 1.1rem; padding-right: 1.1rem; }
  .topic-tabs { grid-template-columns: 1fr; }
  .topic-tab { border-right: 0; }
  .topic-panel { grid-template-columns: 1fr; gap: .5rem; padding: 2rem 1.25rem; }
  .topic-number { font-size: 2.6rem; }
  .expect-grid { grid-template-columns: 1fr; }
  .expect-card { min-height: auto; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.16); }
  .expect-card:last-child { border-bottom: 0; }
  .card-index { margin-bottom: 2.5rem; }
  .contents-section { gap: 2.4rem; }
  .author-image { width: 100%; }
  .author-badge { position: static; margin-top: -1rem; margin-left: 1rem; width: fit-content; }
  .notice-section { grid-template-columns: 1fr; gap: 1rem; }
  .faq-section { gap: 2rem; }
  .site-footer { grid-template-columns: 1fr; }
  .footer-links { justify-content: flex-start; }
}