/* ============================================
   THE POWER OF THE MEMORY GENE — Shared Styles
   Heritage book theme: Cormorant Garamond display,
   warm ivory ground, iron-ink text, gold accent.
   ============================================ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --ivory:      #F7F4ED;
  --ivory-dark: #EDE8DC;
  --ink:        #1C1915;
  --ink-mid:    #3D3830;
  --ink-light:  #6B6357;
  --gold:       #8B6914;
  --gold-light: #C49A2E;
  --gold-pale:  #F2E8CC;
  --rule:       #C8BFA8;

  --font-display: 'IM Fell English', 'Palatino Linotype', serif;
  --font-body:    'Cormorant Garamond', 'Georgia', serif;
  --font-ui:      'Inter', system-ui, sans-serif;
}

html { scroll-behavior: smooth; }

body {
  background: var(--ivory);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

/* ---- Utility ---- */
.container { max-width: 1080px; margin: 0 auto; padding: 0 2rem; }
.container.narrow { max-width: 720px; }

/* ---- Navigation ---- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--ivory);
  border-bottom: 1px solid var(--rule);
}
.nav-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  gap: 2rem;
  height: 60px;
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: 0.03em;
  white-space: nowrap;
  flex-shrink: 0;
}
.nav-links {
  display: flex;
  list-style: none;
  gap: 0;
  margin-left: auto;
}
.nav-links li a {
  display: block;
  padding: 0.4rem 1rem;
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-light);
  text-decoration: none;
  transition: color 0.15s;
}
.nav-links li a:hover,
.nav-links li a.active { color: var(--gold); }
.nav-links li a.nav-cta {
  background: var(--ink);
  color: var(--ivory);
  border-radius: 2px;
  margin-left: 0.5rem;
}
.nav-links li a.nav-cta:hover { background: var(--gold); color: var(--ivory); }
.nav-links li a.nav-cta.active { background: var(--gold); }
.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.4rem;
  cursor: pointer;
  color: var(--ink);
  margin-left: auto;
}

/* ---- Hero ---- */
.hero, .page-header {
  padding: 5rem 2rem 4rem;
  text-align: center;
}
.hero-rule {
  width: 80px;
  height: 1px;
  background: var(--rule);
  margin: 0 auto 3rem;
}
.hero-rule:last-child { margin: 3rem auto 0; }
.hero-inner { max-width: 680px; margin: 0 auto; }
.hero-eyebrow {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.25rem;
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6vw, 3.8rem);
  font-weight: 400;
  line-height: 1.15;
  color: var(--ink);
  margin-bottom: 0.75rem;
}
.hero-title em { font-style: italic; color: var(--gold); }
.hero-sub {
  font-family: var(--font-body);
  font-style: italic;
  font-size: 1.1rem;
  color: var(--ink-light);
  margin-bottom: 2rem;
}
.hero-divider {
  margin: 1.5rem 0;
  color: var(--rule);
  font-size: 0.9rem;
  letter-spacing: 0.5em;
}
.ornament { color: var(--gold-light); font-size: 0.7rem; }
.hero-desc {
  font-size: 1.1rem;
  color: var(--ink-mid);
  max-width: 560px;
  margin: 0 auto 2.5rem;
  line-height: 1.8;
}
.hero-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* ---- Buttons ---- */
.btn-primary, .btn-ghost {
  display: inline-block;
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 0.7rem 1.8rem;
  border-radius: 2px;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.btn-primary {
  background: var(--ink);
  color: var(--ivory);
  border: 1px solid var(--ink);
}
.btn-primary:hover { background: var(--gold); border-color: var(--gold); }
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--rule);
}
.btn-ghost:hover { border-color: var(--gold); color: var(--gold); }

/* ---- Cover section ---- */
.cover-section {
  padding: 1rem 2rem 5rem;
  display: flex;
  justify-content: center;
}
.cover-wrap { position: relative; display: inline-block; }
.book-cover {
  display: block;
  max-width: 340px;
  width: 100%;
  border: 1px solid var(--rule);
  box-shadow: 8px 14px 40px rgba(28,25,21,0.22), 2px 4px 8px rgba(28,25,21,0.12);
}

/* ---- Features strip ---- */
.features {
  background: var(--ink);
  padding: 4.5rem 2rem;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 3rem;
  max-width: 900px;
  margin: 0 auto;
}
.feature { text-align: center; }
.feature-num {
  display: block;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 2.2rem;
  color: var(--gold-light);
  margin-bottom: 0.5rem;
}
.feature h3 {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 1.1rem;
  color: var(--ivory);
  margin-bottom: 0.6rem;
}
.feature p {
  font-size: 0.9rem;
  color: #B0A898;
  line-height: 1.7;
}

/* ---- Purchase note ---- */
.purchase-note {
  padding: 4rem 2rem;
  background: var(--gold-pale);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  text-align: center;
}
.purchase-note .note-label {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1rem;
}
.purchase-note p { font-size: 1rem; color: var(--ink-mid); margin-bottom: 0.75rem; }
.purchase-note a { color: var(--gold); }

/* ---- Bibliographic list ---- */
.biblio { padding: 4rem 2rem; }
.section-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--ink);
  margin-bottom: 2rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--rule);
}
.biblio-list { display: flex; flex-direction: column; gap: 0; }
.biblio-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--ivory-dark);
  gap: 1rem;
}
.biblio-row dt {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-light);
  flex-shrink: 0;
}
.biblio-row dd {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--ink-mid);
  text-align: right;
}

/* ---- Page header (inner pages) ---- */
.page-header {
  padding: 3.5rem 2rem 3rem;
}
.page-header .hero-inner { max-width: 560px; }

/* ---- Reviews ---- */
.review-lead, .reviews-section { padding: 4rem 2rem; }
.review-lead { background: var(--ivory); }
.reviews-section { background: var(--ivory-dark); }

.review-card {
  background: var(--ivory);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--gold);
  padding: 2rem 2rem 1.5rem;
  margin-bottom: 1.5rem;
  border-radius: 1px;
}
.review-card--featured { border-left-width: 4px; }
.review-card blockquote p {
  font-size: 1.05rem;
  font-style: italic;
  color: var(--ink-mid);
  line-height: 1.85;
  margin-bottom: 1rem;
}
.review-card blockquote p:last-child { margin-bottom: 1.5rem; }
.review-card cite { display: flex; flex-direction: column; gap: 0.1rem; font-style: normal; }
.cite-name {
  font-family: var(--font-ui);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: 0.05em;
}
.cite-pub {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  color: var(--ink-light);
  letter-spacing: 0.04em;
}

/* ---- Award image ---- */
.award-section { padding: 3rem 2rem; text-align: center; }
.award-img {
  max-width: 320px;
  width: 100%;
  border: 1px solid var(--rule);
  box-shadow: 4px 8px 24px rgba(28,25,21,0.12);
}

/* ---- Order page ---- */
.order-section { padding: 4rem 2rem; }
.author-note {
  background: var(--gold-pale);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--gold);
  padding: 1.25rem 1.5rem;
  margin-bottom: 3rem;
  font-size: 0.95rem;
  color: var(--ink-mid);
  line-height: 1.7;
}
.edition-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}
.edition-card {
  background: var(--ivory);
  border: 1px solid var(--rule);
  padding: 2.5rem 2rem;
  border-radius: 2px;
  position: relative;
}
.edition-card--featured {
  border-color: var(--gold);
  background: #FDFAF2;
}
.edition-tag {
  display: inline-block;
  font-family: var(--font-ui);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  border: 1px solid var(--gold-light);
  padding: 0.2rem 0.6rem;
  border-radius: 2px;
  margin-bottom: 1.25rem;
}
.edition-title {
  font-family: var(--font-display);
  font-size: 1.7rem;
  font-weight: 400;
  color: var(--ink);
  margin-bottom: 0.3rem;
}
.edition-format {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  color: var(--ink-light);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}
.edition-price { margin-bottom: 1.25rem; }
.price-main {
  display: block;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 2.5rem;
  color: var(--gold);
  line-height: 1;
}
.price-alt {
  font-family: var(--font-ui);
  font-size: 0.8rem;
  color: var(--ink-light);
}
.edition-desc, .edition-how, .edition-isbn {
  font-size: 0.95rem;
  color: var(--ink-mid);
  line-height: 1.7;
  margin-bottom: 0.75rem;
}
.edition-card .btn-primary,
.edition-card .btn-ghost { margin-top: 1rem; width: 100%; text-align: center; }

/* ---- Footer ---- */
.site-footer {
  background: var(--ink);
  color: #9B948A;
  padding: 2rem;
  text-align: center;
  font-family: var(--font-ui);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

/* ---- Links ---- */
a { color: var(--ink); }

/* ---- Responsive ---- */
@media (max-width: 640px) {
  .nav-links { 
    display: none;
    flex-direction: column;
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    background: var(--ivory);
    border-bottom: 1px solid var(--rule);
    padding: 1rem 0;
    z-index: 99;
  }
  .nav-links.open { display: flex; }
  .nav-links li a { padding: 0.6rem 2rem; }
  .nav-links li a.nav-cta { margin-left: 0; border-radius: 0; }
  .nav-toggle { display: block; }
  .site-nav { position: relative; }

  .hero, .page-header { padding: 3rem 1.5rem 2.5rem; }
  .hero-rule { margin-bottom: 2rem; }
  .hero-rule:last-child { margin-top: 2rem; }

  .features { padding: 3rem 1.5rem; }
  .features-grid { gap: 2rem; }

  .book-cover { max-width: 260px; }
  .edition-grid { grid-template-columns: 1fr; }

  .biblio-row { flex-direction: column; gap: 0.1rem; }
  .biblio-row dd { text-align: left; }
}

/* ── SEO / New sections ── */
.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;
}

.about-excerpt,
.keywords-section,
.author-section { padding: 4rem 2rem; }

.keywords-section { background: var(--ivory-dark); }

.audience-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-top: 1.5rem;
}
.audience-item h3 {
  font-family: var(--font-body);
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 0.5rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--rule);
}
.audience-item p { font-size: 0.92rem; color: var(--ink-mid); line-height: 1.75; }

.about-summary { padding: 4rem 2rem; }
.about-summary p { font-size: 1rem; color: var(--ink-mid); margin-bottom: 1rem; line-height: 1.8; }

.author-section p { font-size: 1rem; color: var(--ink-mid); line-height: 1.8; margin-bottom: 1rem; }

.faq-section { padding: 4rem 2rem; background: var(--ivory-dark); }
.faq-list { display: flex; flex-direction: column; gap: 0; }
.faq-item {
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--rule);
}
.faq-item:last-child { border-bottom: none; }
.faq-item h3 {
  font-family: var(--font-body);
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 0.5rem;
}
.faq-item p { font-size: 0.95rem; color: var(--ink-mid); line-height: 1.75; }
.faq-item a { color: var(--gold); }

.footer-nav {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}
.footer-nav a {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #9B948A;
  text-decoration: none;
}
.footer-nav a:hover { color: var(--gold-light); }
.footer-meta {
  margin-top: 0.5rem;
  font-size: 0.68rem;
  color: #6B6357;
}
.footer-meta a { color: #6B6357; }