/* ==========================================================================
   SEÇÃO: CAP. III — O LIVRO AMARELO (#livro)
   Showcase do Livro Amarelo e estrutura das 3 partes programáticas
   ========================================================================== */

#livro {
  background-color: #000000 !important;
  color: var(--color-white);
  position: relative;
}

.book {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(0, 1.12fr);
  gap: 4.5rem;
  align-items: start;
}

/* --------------------------------------------------------------------------
   1. SHOWCASE DO LIVRO (COLUNA ESQUERDA)
   -------------------------------------------------------------------------- */
.book__figure {
  position: sticky;
  top: calc(var(--header-height) + 2.5rem);
}

.book__cover-wrap {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 1rem 0;
}

.book__cover-glow {
  display: none !important;
}

.book__cover-img {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 320px;
  height: auto;
  border-radius: 0 !important;
  box-shadow: none !important;
  filter: none !important;
  transform: none !important;
  transition: transform 400ms ease;
}

.book__figure:hover .book__cover-img {
  transform: translateY(-6px) !important;
}

/* Metadados / Contadores */
.book__meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 2rem;
  padding: 1.5rem 1rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  text-align: center;
}

.book__meta-value {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
}

.book__meta-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.5);
  margin-top: 0.5rem;
}

/* --------------------------------------------------------------------------
   2. AS TRÊS PARTES PROGRAMÁTICAS (COLUNA DIREITA)
   -------------------------------------------------------------------------- */
.book__parts {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.part {
  display: block !important;
  background: rgba(255, 255, 255, 0.03) !important;
  border: 1px solid rgba(255, 255, 255, 0.08) !important;
  border-radius: var(--radius-md) !important;
  padding: 2rem 2.25rem !important;
  position: relative !important;
  overflow: hidden !important;
  transition: transform 300ms cubic-bezier(0.16, 1, 0.3, 1), border-color 300ms ease, background-color 300ms ease !important;
}

.part::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 3px;
  background: rgba(255, 255, 255, 0.15);
  transition: background-color 300ms ease, width 300ms ease;
}

.part:hover {
  transform: translateX(6px) !important;
  background: rgba(255, 255, 255, 0.05) !important;
  border-color: rgba(255, 204, 0, 0.4) !important;
}

.part:hover::before {
  background: var(--color-primary);
  width: 4px;
}

.part__header {
  display: flex !important;
  align-items: center !important;
  justify-content: flex-start !important;
  margin-bottom: 0.85rem !important;
}

.part__badge-wrap {
  display: inline-flex !important;
  align-items: center !important;
  gap: 0.65rem !important;
}

.part__num {
  font-family: var(--font-serif) !important;
  font-size: 1.05rem !important;
  font-weight: 700 !important;
  color: var(--color-primary) !important;
  background: rgba(255, 204, 0, 0.12) !important;
  padding: 0.2rem 0.6rem !important;
  border-radius: var(--radius-sm) !important;
  border: 1px solid rgba(255, 204, 0, 0.3) !important;
  line-height: 1 !important;
  letter-spacing: 0 !important;
}

.part__chapters {
  font-family: var(--font-mono) !important;
  font-size: 0.72rem !important;
  color: rgba(255, 255, 255, 0.5) !important;
  letter-spacing: 0.08em !important;
  text-transform: uppercase !important;
}

.part__name {
  font-family: var(--font-serif) !important;
  font-size: 1.65rem !important;
  font-weight: 600 !important;
  color: #FFFFFF !important;
  margin: 0 0 0.4rem 0 !important;
  letter-spacing: -0.01em !important;
  line-height: 1.25 !important;
}

.part__tagline {
  font-family: var(--font-mono) !important;
  font-size: 0.76rem !important;
  letter-spacing: 0.12em !important;
  text-transform: uppercase !important;
  color: var(--color-primary) !important;
  margin: 0 0 1rem 0 !important;
  display: flex !important;
  align-items: center !important;
  gap: 0.45rem !important;
}

.part__tagline::before {
  content: "◆";
  font-size: 0.55rem;
  opacity: 0.85;
}

.part__text {
  font-size: 1.05rem !important;
  line-height: 1.68 !important;
  color: rgba(255, 255, 255, 0.75) !important;
  margin: 0 !important;
}

/* --------------------------------------------------------------------------
   3. RESPONSIVIDADE DO LIVRO
   -------------------------------------------------------------------------- */
@media (max-width: 992px) {
  .book {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .book__figure {
    position: static;
    max-width: 380px;
    margin: 0 auto;
  }

  .book__cover-img {
    max-width: 260px;
    transform: none !important;
  }
}

@media (max-width: 640px) {
  .part {
    padding: 1.5rem 1.35rem !important;
  }

  .part:hover {
    transform: translateY(-3px) !important;
  }

  .part__name {
    font-size: 1.35rem !important;
  }

  .book__meta {
    padding: 1rem 0.5rem;
  }

  .book__meta-value {
    font-size: 1.4rem;
  }
}