/* ============================================================================
   biblioteca.css — CSS LOCAL da Biblioteca de Ebooks
   ----------------------------------------------------------------------------
   REGRA (decisão 05): NÃO redefinir nada que já existe em ds/style.css
   (nav, hero, btn, section-head, light-section, footer...). Aqui SÓ vai
   conteúdo genuinamente novo (grade de ebooks, card de ebook, hero do ebook,
   caixa de preço, blocos legais), sempre usando os tokens nativos:
   --bg, --gold, --text, --border, --ff-sans, --ff-mono, --ease, --maxw, etc.
   Estética: lendaria-ds ("livraria de luxo", Regra dos 8%, cantos quase retos,
   capa que levita no hover).
   ========================================================================== */

/* ---------- Wrapper de página de catálogo (hero compacto editorial) ------- */
.lib-head {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 140px 24px 48px;
}
.lib-head .sh-eyebrow { margin-bottom: 20px; }
.lib-head-title {
  font-family: var(--ff-sans);
  font-weight: 500;
  font-size: clamp(2.2rem, 5vw, 4rem);
  line-height: 1.04;
  letter-spacing: -0.04em;
  margin: 0 0 16px;
  text-wrap: balance;
}
.lib-head-title em {
  font-family: var(--ff-display);
  font-style: italic;
  font-weight: 400;
  color: var(--gold-bright);
}
.lib-head-sub {
  max-width: 620px;
  font-size: clamp(1rem, 1.4vw, 1.12rem);
  color: var(--text-mid);
  font-weight: 300;
}

/* breadcrumb / voltar */
.lib-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--ff-mono);
  font-size: 10.5px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}
.lib-back:hover { color: var(--gold); }

/* ---------- Seção de série dentro do catálogo ----------------------------- */
.lib-section { max-width: var(--maxw); margin: 0 auto; padding: 24px 24px 80px; }
.lib-section-head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 32px;
}
.lib-section-head h2 {
  font-size: clamp(1.4rem, 2.4vw, 1.9rem);
  font-weight: 500;
  letter-spacing: -0.03em;
  white-space: nowrap;
}
.lib-section-head .lib-rule {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--gold-20), transparent);
}
.lib-section-head .lib-link {
  font-family: var(--ff-display);
  font-style: italic;
  font-size: 1rem;
  color: var(--gold);
  text-decoration: none;
  white-space: nowrap;
}
.lib-section-head .lib-link:hover { color: var(--gold-bright); }

/* ---------- Barra de filtros + busca (seção "Todos os ebooks") ------------ */
.lib-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 32px;
}
.lib-filters { display: flex; flex-wrap: wrap; gap: 8px; }
.lib-filter {
  font-family: var(--ff-mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 16px;
  cursor: pointer;
  white-space: nowrap;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}
.lib-filter:hover { color: var(--text); border-color: var(--gold-30); }
.lib-filter:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }
.lib-filter.is-active {
  color: var(--bg);
  background: var(--gold);
  border-color: var(--gold);
  font-weight: 600;
}
.lib-search { flex: 1; min-width: 220px; max-width: 360px; }
.lib-search input {
  width: 100%;
  font-family: var(--ff-sans);
  font-size: 14px;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 10px 18px;
  transition: border-color 0.2s var(--ease);
}
.lib-search input::placeholder { color: var(--text-dim); }
.lib-search input:focus { outline: none; border-color: var(--gold); }
.lib-empty {
  font-family: var(--ff-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--text-dim);
  padding: 28px 0;
}

/* ---------- Grade de ebooks ----------------------------------------------- */
.lib-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 40px 28px;
}
/* Card oculto por filtro/busca (override do display:flex do .book-card) */
.lib-grid .book-card[hidden] { display: none; }

/* ---------- Card de ebook (inspirado em BookCard do lendaria-ds) ---------- */
.book-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  text-decoration: none;
  color: inherit;
}
.book-cover {
  position: relative;
  aspect-ratio: 120 / 176;
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 2px 6px rgba(0,0,0,0.25);
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
  border-left: 1px solid rgba(255,255,255,0.12); /* "lombada" */
}
.book-card:hover .book-cover {
  transform: translateY(-6px);
  box-shadow: 0 24px 48px rgba(0,0,0,0.55);
}
.book-cover img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* Capa SVG sobreposta ao gradiente de fallback (cards e página de ebook).
   Se a imagem falhar (onerror → this.remove()), o gradiente atrás reaparece. */
.book-cover .cover-img,
.ebook-cover .cover-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  z-index: 1;
}
.book-badge { z-index: 2; } /* badge acima da capa */

/* Fallback de capa: gradiente determinístico + título serif (como no DS) */
.book-cover-fallback {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-end;
  padding: 16px;
}
.book-cover-fallback .bc-title {
  font-family: var(--ff-display);
  font-style: italic;
  font-size: 1.15rem;
  line-height: 1.15;
  color: rgba(255,255,255,0.92);
}
.bc-seed-0 { background: linear-gradient(150deg, #2a2620, #0f0d0a); }
.bc-seed-1 { background: linear-gradient(150deg, #2b2118, #100b07); }
.bc-seed-2 { background: linear-gradient(150deg, #1f2528, #0a0d0f); }
.bc-seed-3 { background: linear-gradient(150deg, #2a2230, #0e0a12); }
.bc-seed-4 { background: linear-gradient(150deg, #29231b, #120c08); }
.bc-seed-5 { background: linear-gradient(150deg, #232a26, #0a0f0c); }

.book-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  font-family: var(--ff-mono);
  font-size: 9px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold-bright);
  background: rgba(7,7,9,0.6);
  border: 1px solid var(--gold-30);
  border-radius: 3px;
  padding: 3px 7px;
  backdrop-filter: blur(8px);
}

.book-meta { display: flex; flex-direction: column; gap: 4px; }
.book-cat {
  font-family: var(--ff-mono);
  font-size: 9px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.book-title {
  font-family: var(--ff-display);
  font-style: normal;
  font-size: 1.05rem;
  line-height: 1.2;
  color: var(--text);
  transition: color 0.2s var(--ease);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.book-card:hover .book-title { color: var(--gold-bright); }
.book-author {
  font-family: var(--ff-display);
  font-style: italic;
  font-weight: 300;
  font-size: 0.9rem;
  color: var(--text-mid);
}
.book-price {
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--gold);
  margin-top: 2px;
}
.book-price small { color: var(--text-dim); }

/* ---------- Estado vazio / sem JS ---------------------------------------- */
.lib-noscript {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: 12px;
}
.lib-noscript a { color: var(--gold); }

/* ==========================================================================
   PÁGINA INDIVIDUAL DE EBOOK
   ========================================================================== */
.ebook-wrap { max-width: var(--maxw); margin: 0 auto; padding: 120px 24px 40px; }

.ebook-hero {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 56px;
  align-items: start;
  padding-bottom: 64px;
  border-bottom: 1px solid var(--border);
}
.ebook-cover {
  position: relative;
  aspect-ratio: 120 / 176;
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 24px 48px rgba(0,0,0,0.55);
  border-left: 1px solid rgba(255,255,255,0.12);
}
.ebook-cover img { width: 100%; height: 100%; object-fit: cover; display: block; }

.ebook-cat {
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 18px;
}
.ebook-title {
  font-family: var(--ff-sans);
  font-weight: 500;
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  line-height: 1.04;
  letter-spacing: -0.04em;
  margin: 0 0 16px;
  text-wrap: balance;
}
.ebook-title em {
  font-family: var(--ff-display);
  font-style: italic;
  font-weight: 400;
  color: var(--gold-bright);
}
.ebook-author {
  font-family: var(--ff-display);
  font-style: italic;
  font-size: 1.2rem;
  color: var(--text-mid);
  margin-bottom: 14px;
}
/* Linha de volume público (metadado): "Volume 05 da série AIOX Fundamentals" */
.ebook-volline {
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 28px;
}

/* faixa de metadados (mono, separada por hairlines) */
.ebook-metastrip {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin: 0 0 32px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.ebook-metastrip .ms {
  padding: 14px 22px 14px 0;
  margin-right: 22px;
  border-right: 1px solid var(--border);
}
.ebook-metastrip .ms:last-child { border-right: none; }
.ebook-metastrip .ms .k {
  display: block;
  font-family: var(--ff-mono);
  font-size: 9px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 4px;
}
.ebook-metastrip .ms .v {
  font-family: var(--ff-mono);
  font-size: 13px;
  color: var(--text);
}

/* caixa de preço + CTA */
.price-box {
  border: 1px solid var(--gold-20);
  border-radius: 16px;
  padding: 28px;
  background: var(--gold-05);
  margin-bottom: 18px;
}
.price-total {
  font-family: var(--ff-sans);
  font-weight: 600;
  font-size: 2rem;
  letter-spacing: -0.03em;
  color: var(--text);
}
.price-installments {
  font-family: var(--ff-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--text-mid);
  margin-top: 6px;
}
.price-note {
  font-size: 12.5px;
  color: var(--text-dim);
  margin-top: 4px;
}
.price-ctas { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }

/* botão "Em breve" (checkout ainda não disponível) */
.btn-soon {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 50px;
  padding: 0 26px;
  border-radius: 999px;
  font-family: var(--ff-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  background: var(--surface-2);
  border: 1px dashed var(--border-strong);
  cursor: not-allowed;
}

/* conteúdo / seções do ebook */
.ebook-body { display: grid; grid-template-columns: 1fr; gap: 56px; padding: 64px 0; }
@media (min-width: 880px) {
  .ebook-body { grid-template-columns: 1fr 1fr; }
}
.ebook-block h3 {
  font-family: var(--ff-sans);
  font-weight: 500;
  font-size: 1.4rem;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}
.ebook-block .blk-eyebrow {
  font-family: var(--ff-mono);
  font-size: 10.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 12px;
}
.learn-list { list-style: none; display: flex; flex-direction: column; gap: 18px; }
.learn-list li { display: flex; gap: 14px; }
.learn-list .ln {
  font-family: var(--ff-mono);
  font-size: 12px;
  color: var(--gold);
  padding-top: 2px;
}
.learn-list p { margin: 0; color: var(--text-mid); }
.incl-list { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.incl-list li { display: flex; gap: 12px; color: var(--text-mid); font-size: 14px; }
.incl-list svg { flex-shrink: 0; color: var(--gold); margin-top: 3px; }

/* blocos legais (reembolso, arrependimento, disclaimer) */
.legal-block {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px 64px;
}
.legal-block .legal-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--border);
  padding-top: 40px;
}
@media (min-width: 760px) { .legal-block .legal-grid { grid-template-columns: 1fr 1fr; } }
.legal-item .lh {
  font-family: var(--ff-mono);
  font-size: 10.5px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 8px;
}
.legal-item p { font-size: 13px; line-height: 1.6; color: var(--text-mid); margin: 0; }

/* CTA secundário (produto relacionado) — faixa */
.related-cta {
  max-width: var(--maxw);
  margin: 0 auto 72px;
  padding: 32px 24px;
}
.related-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px 32px;
  background: var(--surface);
}
.related-inner .rc-text strong {
  display: block;
  font-family: var(--ff-sans);
  font-weight: 500;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 4px;
}
.related-inner .rc-text span { color: var(--text-dim); font-size: 13.5px; }

@media (max-width: 720px) {
  .ebook-hero { grid-template-columns: 1fr; gap: 32px; }
  .ebook-cover { max-width: 220px; }
}

/* Status do checkout dentro da caixa de preço */
.price-status {
  margin-top: 12px;
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: 0.03em;
  line-height: 1.5;
  color: var(--text-dim);
}
.price-status .dot { color: var(--gold); margin-right: 4px; }
.price-status strong { color: var(--text-mid); font-weight: 600; }