/* ---------- Tokens ---------- */
:root {
  --color-bg: #f6f1e7;
  --color-bg-alt: #ece3d3;
  --color-ink: #24211f;
  --color-ink-soft: #55504a;
  --color-accent: #7c2233;
  --color-accent-dark: #5c1826;
  --color-gold: #a98a4e;
  --color-border: rgba(36, 33, 31, 0.14);
  --color-dark-bg: #201c1a;
  --color-dark-ink: #f3ede1;
  --color-dark-ink-soft: #cabfaf;

  --font-heading: "Playfair Display", Georgia, serif;
  --font-quote: "Libre Baskerville", Georgia, serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;

  --wrap-width: 1120px;
  --radius: 6px;
}

/* ---------- Reset (page-scoped) ---------- */
*, *::before, *::after { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
h1, h2, h3 { font-family: var(--font-heading); font-weight: 600; line-height: 1.15; margin: 0 0 0.5em; }
p { margin: 0 0 1em; }
ul { list-style: none; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

.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;
}

.wrap {
  max-width: var(--wrap-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Anchor offset so the fixed header doesn't cover section titles */
section[id], main[id] { scroll-margin-top: 84px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 0.85em 1.6em;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color .15s ease, color .15s ease, border-color .15s ease;
}
.btn-primary {
  background: var(--color-accent);
  color: #fff;
}
.btn-primary:hover { background: var(--color-accent-dark); }
.btn-ghost {
  background: transparent;
  color: var(--color-ink);
  border-color: var(--color-border);
}
.btn-ghost:hover { border-color: var(--color-ink); }
.btn-large { font-size: 1.05rem; padding: 1em 2em; }
.btn-nav { margin-left: 8px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(246, 241, 231, 0.92);
  backdrop-filter: saturate(140%) blur(6px);
  border-bottom: 1px solid var(--color-border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--color-ink);
}
.brand-mark { height: 32px; width: auto; }
.brand-text {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.01em;
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 0.92rem;
  font-weight: 500;
}
.site-nav a:not(.btn) {
  text-decoration: none;
  color: var(--color-ink-soft);
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
}
.site-nav a:not(.btn):hover { color: var(--color-ink); border-color: var(--color-gold); }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-ink);
  margin: 0 auto;
}

/* ---------- Hero ---------- */
.hero { padding: 72px 0 88px; }
.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}
.eyebrow {
  font-family: var(--font-body);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-accent);
  margin: 0 0 0.9em;
}
.eyebrow-on-dark { color: var(--color-gold); }
.hero h1 { font-size: clamp(2.6rem, 5vw, 3.8rem); margin-bottom: 0.25em; }
.hero-subtitle {
  font-family: var(--font-heading);
  font-style: italic;
  font-size: 1.3rem;
  color: var(--color-ink-soft);
  margin-bottom: 0.9em;
}
.hero-lede { max-width: 46ch; color: var(--color-ink-soft); }
.hero-actions { display: flex; gap: 14px; margin-top: 1.6em; flex-wrap: wrap; }
.hero-cover img {
  margin: 0 auto;
  max-width: 320px;
  box-shadow: 0 30px 60px -20px rgba(36,33,31,0.35);
  border-radius: 3px;
}

/* ---------- Sections (generic) ---------- */
.section { padding: 88px 0; }
.section-alt { background: var(--color-bg-alt); }
.section h2 { font-size: clamp(1.8rem, 3vw, 2.4rem); }
.section-lede { max-width: 62ch; color: var(--color-ink-soft); font-size: 1.05rem; }

/* Timeline */
.timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 2.5em;
  padding: 0;
  counter-reset: step;
}
.timeline li {
  border-top: 3px solid var(--color-gold);
  padding-top: 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.timeline-label {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.1rem;
}
.timeline-note {
  color: var(--color-ink-soft);
  font-size: 0.9rem;
}

/* Detalhe do livro (capítulos) */
.book-detail {
  margin-top: 3.5em;
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 40px;
  align-items: center;
}
.book-detail-text h3 {
  font-size: 1.1rem;
  margin-bottom: 0.8em;
}
.chapter-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.chapter-list li {
  font-size: 0.85rem;
  padding: 0.5em 0.9em;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  color: var(--color-ink-soft);
}
.book-detail-image img { border-radius: var(--radius); }
.book-detail-image figcaption {
  margin-top: 8px;
  font-size: 0.82rem;
  font-style: italic;
  color: var(--color-ink-soft);
}

/* ---------- Autor ---------- */
.author-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 56px;
  align-items: start;
}
.author-photos { display: flex; flex-direction: column; gap: 20px; }
.author-portrait {
  border-radius: var(--radius);
  box-shadow: 0 20px 40px -20px rgba(36,33,31,0.3);
}
.author-with-sara img { border-radius: var(--radius); }
.author-with-sara figcaption {
  font-size: 0.85rem;
  color: var(--color-ink-soft);
  margin-top: 8px;
  font-style: italic;
}
.pull-quote {
  margin: 1.6em 0 0;
  padding: 1.2em 1.4em;
  border-left: 3px solid var(--color-accent);
  background: rgba(124, 34, 51, 0.06);
  font-family: var(--font-quote);
  font-style: italic;
  font-size: 1.05rem;
}
.pull-quote cite {
  display: block;
  margin-top: 0.7em;
  font-family: var(--font-body);
  font-style: normal;
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--color-ink-soft);
}

/* ---------- Prefácio (dark) ---------- */
.section-preface {
  position: relative;
  background: var(--color-dark-bg);
  color: var(--color-dark-ink);
  padding: 100px 0;
  overflow: hidden;
}
.preface-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.22;
}
.preface-content { position: relative; }
.preface-quote {
  margin: 0;
  max-width: 780px;
  font-family: var(--font-quote);
  font-style: italic;
  font-size: clamp(1.3rem, 2.6vw, 1.8rem);
  line-height: 1.5;
}
.preface-author {
  margin-top: 1.6em;
  display: flex;
  align-items: center;
  gap: 14px;
}
.preface-author img {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  object-fit: cover;
}
.preface-author cite {
  font-style: normal;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-gold);
}
.preface-author cite span {
  display: block;
  font-weight: 400;
  font-size: 0.82rem;
  color: var(--color-dark-ink-soft);
}

/* ---------- Galeria ---------- */
.gallery-grid {
  margin-top: 2.5em;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px 20px;
}
.gallery-card { margin: 0; }
.gallery-item {
  display: block;
  width: 100%;
  padding: 0;
  border: none;
  background: none;
  cursor: pointer;
  overflow: hidden;
  border-radius: 4px;
  aspect-ratio: 4 / 3;
}
.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .3s ease;
}
.gallery-item:hover img { transform: scale(1.05); }
.gallery-card figcaption { margin-top: 10px; }
.gallery-card h3 {
  font-size: 0.95rem;
  margin: 0 0 0.3em;
  color: var(--color-accent);
}
.gallery-card p {
  font-size: 0.85rem;
  color: var(--color-ink-soft);
  margin: 0;
  line-height: 1.5;
}

/* ---------- Amostra ---------- */
.excerpt-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 48px;
  align-items: center;
}
.excerpt {
  margin: 1em 0 2em;
  font-family: var(--font-quote);
  font-size: 1.1rem;
  line-height: 1.75;
  color: var(--color-ink);
  padding: 1.8em 2em;
  background: var(--color-bg);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}
.excerpt p:last-child { margin-bottom: 0; }
.excerpt-image img {
  border-radius: var(--radius);
  box-shadow: 0 20px 40px -20px rgba(36,33,31,0.3);
}

/* ---------- Depoimentos ---------- */
.testimonial-grid {
  margin-top: 2.5em;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.testimonial {
  margin: 0;
  padding: 1.6em;
  background: var(--color-bg-alt);
  border-radius: var(--radius);
}
.testimonial p { font-size: 0.98rem; color: var(--color-ink); }
.testimonial cite {
  display: block;
  margin-top: 1em;
  font-weight: 600;
  font-style: normal;
  font-size: 0.88rem;
  color: var(--color-accent);
}

/* ---------- Comprar ---------- */
.section-buy {
  background: var(--color-dark-bg);
  color: var(--color-dark-ink);
}
.buy-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.section-buy h2 { color: var(--color-dark-ink); }
.section-buy p { color: var(--color-dark-ink-soft); }

/* ---------- Newsletter ---------- */
.newsletter-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.newsletter-inner h2 { margin-bottom: 0.3em; }
.newsletter-inner p { color: var(--color-ink-soft); margin: 0; }
.newsletter-form { display: flex; gap: 10px; flex-wrap: wrap; }
.newsletter-form input {
  padding: 0.85em 1em;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.95rem;
  min-width: 240px;
}

/* ---------- Contato ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 56px;
}
.social-list { margin-top: 1.5em; display: flex; flex-direction: column; gap: 10px; }
.social-list a {
  text-decoration: none;
  font-weight: 600;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 2px;
}
.social-list a:hover { border-color: var(--color-accent); }

.contact-form { display: flex; flex-direction: column; gap: 6px; }
.contact-form label { font-size: 0.85rem; font-weight: 600; margin-top: 0.6em; }
.contact-form input, .contact-form textarea {
  padding: 0.75em 0.9em;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.95rem;
  resize: vertical;
}
.contact-form button { margin-top: 1.2em; align-self: flex-start; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-dark-bg);
  color: var(--color-dark-ink-soft);
  padding: 48px 0;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.site-footer .brand { color: var(--color-dark-ink); }
.footer-note { margin: 0; font-size: 0.85rem; }
.footer-links { display: flex; gap: 18px; font-size: 0.85rem; }
.footer-links a { text-decoration: none; }
.footer-links a:hover { color: var(--color-dark-ink); }
.footer-copy { margin: 0; font-size: 0.8rem; width: 100%; text-align: center; opacity: 0.7; }

/* ---------- Lightbox ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(15, 13, 12, 0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 32px;
}
.lightbox[hidden] { display: none; }
.lightbox img { max-width: 92vw; max-height: 88vh; border-radius: 4px; }
.lightbox-close {
  position: absolute;
  top: 20px; right: 24px;
  background: none;
  border: none;
  color: #fff;
  font-size: 2rem;
  line-height: 1;
  cursor: pointer;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
  background: var(--color-ink);
  color: #fff;
  padding: 10px 16px;
  z-index: 200;
}
.skip-link:focus { left: 16px; top: 16px; }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-cover { order: -1; }
  .author-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .timeline { grid-template-columns: repeat(2, 1fr); }
  .testimonial-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: repeat(3, 1fr); }
  .book-detail { grid-template-columns: 1fr; }
  .excerpt-grid { grid-template-columns: 1fr; }
  .excerpt-image { order: -1; max-width: 320px; }
}

@media (max-width: 640px) {
  .nav-toggle { display: flex; }
  .site-nav {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 8px 24px 20px;
    display: none;
  }
  .site-nav.is-open { display: flex; }
  .site-nav a:not(.btn) { padding: 10px 0; width: 100%; }
  .btn-nav { margin: 12px 0 0; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .buy-inner, .newsletter-inner { flex-direction: column; align-items: flex-start; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}