/* ==========================================
   sections.css - Hero, Sobre, Sumário, Autora, FAQ
   ========================================== */

section {
  padding: 96px 0;
  position: relative;
}
@media (min-width: 768px) {
  section { padding: 120px 0; }
}

.section-eyebrow {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--terracota-dark);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}
.section-eyebrow svg { width: 16px; height: 16px; }

.section-header {
  max-width: 680px;
  margin-bottom: 52px;
}
.section-header h2 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  color: var(--night-900);
  line-height: 1.15;
  letter-spacing: -0.01em;
}

/* HERO */
.hero {
  padding: 130px 0 70px;
  position: relative;
  overflow: hidden;
}
@media (min-width: 992px) {
  .hero { padding: 150px 0 90px; }
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
  position: relative;
  z-index: 2;
}
@media (min-width: 992px) {
  .hero-grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 56px;
  }
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: var(--amber-100);
  border: 1px solid var(--amber-200);
  border-radius: 9999px;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--terracota-deep);
  margin-bottom: 20px;
}
.status-pulse {
  width: 7px;
  height: 7px;
  background: var(--terracota);
  border-radius: 50%;
  box-shadow: 0 0 0 0 var(--gold-glow);
  animation: pulseGlow 2s infinite;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3.2rem, 7.2vw, 5.6rem);
  line-height: 0.92;
  letter-spacing: 0.01em;
  color: var(--night-950);
  margin-bottom: 18px;
  text-transform: uppercase;
}
.hero-title span {
  background: linear-gradient(135deg, var(--terracota-dark) 0%, var(--terracota) 60%, var(--terracota-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}
.hero-subhead {
  font-family: var(--font-body);
  font-size: clamp(1.15rem, 2.2vw, 1.35rem);
  font-style: italic;
  color: var(--terracota-dark);
  margin-bottom: 20px;
  font-weight: 500;
  line-height: 1.4;
}
.hero-lead {
  font-family: var(--font-ui);
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 52ch;
  line-height: 1.7;
  margin-bottom: 34px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  margin-bottom: 28px;
}
.btn-primary-glow {
  background: linear-gradient(135deg, var(--terracota) 0%, var(--terracota-dark) 100%);
  color: #FFFFFF;
  padding: 16px 28px;
  border-radius: 12px;
  font-weight: 700;
  font-size: 0.98rem;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  box-shadow: 0 14px 28px -8px rgba(232, 121, 26, 0.48);
  transition: all 0.3s var(--spring);
  position: relative;
  overflow: hidden;
}
.btn-primary-glow:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 36px -8px rgba(232, 121, 26, 0.6);
}
.btn-secondary-outline {
  background: transparent;
  border: 1.5px solid var(--border-medium);
  color: var(--text-dark);
  padding: 15px 24px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.25s ease;
}
.btn-secondary-outline:hover {
  background: var(--bg-surface);
  border-color: var(--night-900);
  color: var(--night-900);
  transform: translateY(-2px);
}
.trust-strip {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
}
.trust-item svg { width: 18px; height: 18px; color: var(--terracota); }

/* 3D BOOK */
.book-showcase-container {
  perspective: 1600px;
  display: flex;
  justify-content: center;
  position: relative;
}
.book-3d-card {
  position: relative;
  width: min(480px, 94%);
  transform-style: preserve-3d;
  transition: transform 0.15s ease-out;
  cursor: grab;
}
.book-3d-card:active { cursor: grabbing; }
.book-image-wrapper {
  position: relative;
  border-radius: 14px;
  overflow: hidden;
  box-shadow:
    0 45px 90px -20px rgba(16, 27, 43, 0.5),
    0 20px 40px -10px rgba(232, 121, 26, 0.3),
    inset 0 0 0 1px rgba(255, 255, 255, 0.25);
}
.book-image-wrapper img {
  width: 100%;
  height: auto;
  object-fit: cover;
  transform: scale(1.01);
}
.book-glare {
  position: absolute;
  inset: 0;
  background: linear-gradient(125deg, rgba(255,255,255,0.45) 0%, rgba(255,255,255,0) 60%);
  pointer-events: none;
  opacity: 0.65;
  mix-blend-mode: overlay;
}
.book-specs-row {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 36px;
  flex-wrap: wrap;
}
.spec-pill {
  background: var(--bg-subtle);
  border: 1px solid var(--border-light);
  padding: 6px 14px;
  border-radius: 9999px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* SOBRE */
.sobre-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
}
@media (min-width: 960px) {
  .sobre-grid { grid-template-columns: 1.1fr 0.9fr; gap: 64px; }
}
.editorial-manifesto {
  font-family: var(--font-body);
  font-size: 1.15rem;
  color: var(--text-dark);
  line-height: 1.8;
  margin-bottom: 24px;
}
.editorial-manifesto p { margin-bottom: 20px; }
.editorial-manifesto strong { color: var(--night-900); font-weight: 600; }
.quote-box {
  background: var(--bg-subtle);
  border-left: 3px solid var(--terracota);
  padding: 24px 28px;
  border-radius: 0 16px 16px 0;
  margin: 32px 0;
  font-family: var(--font-body);
  font-style: italic;
  font-size: 1.1rem;
  color: var(--night-800);
}
.pillars-stack { display: flex; flex-direction: column; gap: 16px; }
.pillar-item {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  padding: 20px;
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: 16px;
  transition: all 0.3s var(--spring);
}
.pillar-item:hover {
  border-color: var(--terracota-light);
  transform: translateX(4px);
  box-shadow: 0 10px 24px -10px rgba(232, 121, 26, 0.15);
}
.pillar-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--amber-100);
  color: var(--terracota-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}
.pillar-icon svg { width: 20px; height: 20px; }
.pillar-text h4 { font-size: 0.98rem; font-weight: 700; color: var(--night-900); margin-bottom: 4px; }
.pillar-text p { font-size: 0.88rem; color: var(--text-muted); line-height: 1.5; }

/* SUMÁRIO */
.sumario-section { background: var(--bg-subtle); }
.chapters-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
@media (min-width: 768px) {
  .chapters-grid { grid-template-columns: 1fr 1fr; gap: 20px; }
}
.chapter-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: 16px;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: all 0.3s var(--spring);
}
.chapter-card:hover {
  border-color: var(--terracota-light);
  box-shadow: 0 10px 25px -10px rgba(26, 23, 24, 0.08);
  transform: translateY(-2px);
}
.chapter-left { display: flex; align-items: center; gap: 16px; }
.chapter-num { font-family: var(--font-display); font-size: 1.4rem; color: var(--terracota); width: 32px; flex-shrink: 0; }
.chapter-title { font-size: 0.95rem; font-weight: 600; color: var(--night-900); }
.chapter-page {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
  background: var(--bg-base);
  padding: 4px 10px;
  border-radius: 8px;
  font-variant-numeric: tabular-nums;
}

/* A AUTORA */
.autora-section { background: var(--night-900); color: var(--text-light); overflow: hidden; }
.autora-grid { display: grid; grid-template-columns: 1fr; gap: 48px; align-items: center; }
@media (min-width: 960px) {
  .autora-grid { grid-template-columns: 0.9fr 1.1fr; gap: 64px; }
}
.autora-photo-frame {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 35px 75px -15px rgba(0, 0, 0, 0.85);
  border: 2px solid rgba(255, 255, 255, 0.12);
  max-width: 480px;
  margin: 0 auto;
}
.autora-photo-frame img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.6s ease;
}
.autora-photo-frame:hover img { transform: scale(1.03); }
.autora-title-tag {
  color: var(--terracota-light);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.autora-name {
  font-family: var(--font-heading);
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 24px;
  line-height: 1;
}
.autora-bio {
  font-family: var(--font-ui);
  font-size: 1.05rem;
  color: var(--text-light-muted);
  line-height: 1.8;
  margin-bottom: 28px;
}
.autora-gold-quote {
  font-family: var(--font-body);
  font-style: italic;
  font-size: 1.25rem;
  color: var(--amber-200);
  border-left: 2px solid var(--terracota);
  padding-left: 20px;
  margin-top: 24px;
  line-height: 1.5;
}

/* FAQ */
.faq-section { background: var(--bg-subtle); }
.faq-list {
  max-width: 840px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.faq-item {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: 16px;
  overflow: hidden;
  transition: border-color 0.25s ease;
}
.faq-item.active { border-color: var(--terracota-light); }
.faq-question {
  width: 100%;
  text-align: left;
  padding: 22px 24px;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--night-900);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.faq-chevron {
  width: 20px;
  height: 20px;
  color: var(--terracota);
  transition: transform 0.3s var(--spring);
}
.faq-item.active .faq-chevron { transform: rotate(180deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s var(--spring), padding 0.35s ease;
  padding: 0 24px;
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
}
.faq-item.active .faq-answer { padding-bottom: 22px; }