/* =================================================================
   BOOK LANDING · COMPONENTS
   ──────────────────────────────────────────────────────────────────
   BEM + prefijo bl-. Scoped bajo .book-landing.

   Orden de cascada dentro del archivo:
     1. PRIMITIVES   (btn, badge, input, card)
     2. SECCIONES    (hero, benefits, explore, author, checkout)
   ================================================================= */


/* =============================================================
   1. BUTTON
   ============================================================= */

.book-landing .bl-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--bl-space-2);
  padding: var(--bl-space-3) var(--bl-space-5);
  font-family: var(--bl-font-body);
  font-size: var(--bl-text-base);
  font-weight: var(--bl-weight-semibold);
  line-height: 1;
  letter-spacing: var(--bl-tracking-tight);
  border-radius: var(--bl-radius-pill);
  cursor: pointer;
  transition:
    transform var(--bl-duration-fast) var(--bl-ease-out),
    background-color var(--bl-duration) var(--bl-ease-smooth),
    box-shadow var(--bl-duration) var(--bl-ease-smooth),
    color var(--bl-duration) var(--bl-ease-smooth);
  user-select: none;
  text-align: center;
  vertical-align: middle;
}
.book-landing .bl-btn__label {
  display: inline-block;
  line-height: 1;
  text-box: trim-both cap alphabetic;
}

/* Primary — el CTA principal (Compra) */
.book-landing .bl-btn--primary {
  background: var(--bl-color-primary);
  color: var(--bl-color-on-primary);
  box-shadow: var(--bl-shadow-sm);
}
.book-landing .bl-btn--primary:hover {
  background: var(--bl-color-primary-hover);
  box-shadow: var(--bl-shadow-glow);
  transform: translateY(-2px);
}
.book-landing .bl-btn--primary:active {
  background: var(--bl-color-primary-active);
  transform: translateY(0);
}

/* Ghost — el CTA secundario (Vista previa) */
.book-landing .bl-btn--ghost {
  background: transparent;
  color: var(--bl-color-text-heading);
  border: 1.5px solid var(--bl-color-border-strong);
}
.book-landing .bl-btn--ghost:hover {
  border-color: var(--bl-color-primary);
  color: var(--bl-color-primary);
  background: var(--bl-blue-50);
  transform: translateY(-2px);
}

/* Sizes */
.book-landing .bl-btn--sm {
  padding: var(--bl-space-2) var(--bl-space-4);
  font-size: var(--bl-text-sm);
}
.book-landing .bl-btn--lg {
  padding: var(--bl-space-4) var(--bl-space-6);
  font-size: var(--bl-text-md);
}

/* Icon companion */
.book-landing .bl-btn__icon {
  display: block;
  width: 1.1em;
  height: 1.1em;
  flex-shrink: 0;
  translate: 0 0.5px;
}


/* =============================================================
   2. BADGE
   ============================================================= */

.book-landing .bl-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--bl-space-1);
  padding: var(--bl-space-1) var(--bl-space-3);
  font-size: var(--bl-text-xs);
  font-weight: var(--bl-weight-semibold);
  letter-spacing: var(--bl-tracking-wide);
  border-radius: var(--bl-radius-pill);
  line-height: 1.4;
}

.book-landing .bl-badge--solid {
  background: var(--bl-color-primary);
  color: var(--bl-color-on-primary);
}
.book-landing .bl-badge--outline {
  background: var(--bl-color-bg-subtle);
  color: var(--bl-color-primary);
  border: 1px solid var(--bl-color-border);
}
.book-landing .bl-badge--gold {
  background: rgba(212, 180, 90, 0.12);
  color: var(--bl-gold-600);
  border: 1px solid rgba(212, 180, 90, 0.30);
}
.book-landing .bl-badge--muted {
  background: var(--bl-color-bg-muted);
  color: var(--bl-color-text-muted);
}


/* =============================================================
   3. CARD
   ============================================================= */

.book-landing .bl-card {
  padding: var(--bl-space-6);
  background: var(--bl-color-surface);
  border-radius: var(--bl-radius-lg);
  border: 1px solid var(--bl-color-border);
  transition:
    transform var(--bl-duration) var(--bl-ease-out),
    box-shadow var(--bl-duration) var(--bl-ease-smooth),
    border-color var(--bl-duration) var(--bl-ease-smooth);
}

/* Glass: glassmorphism sutil (frosted) */
.book-landing .bl-card--glass {
  background: var(--bl-glass-bg);
  backdrop-filter: blur(var(--bl-blur-glass));
  -webkit-backdrop-filter: blur(var(--bl-blur-glass));
  border: 1px solid var(--bl-glass-border);
  box-shadow: var(--bl-shadow-md);
}

/* Bordered (más recortada) */
.book-landing .bl-card--bordered {
  border: 1.5px solid var(--bl-color-border-strong);
}

/* Elevation (más sombra) */
.book-landing .bl-card--shadow {
  box-shadow: var(--bl-shadow-md);
  border-color: transparent;
}

/* Hover lift (para benefits) */
.book-landing .bl-card--lift:hover {
  transform: translateY(-4px);
  box-shadow: var(--bl-shadow-lg);
  border-color: var(--bl-color-primary);
}

/* Premium (para checkout) */
.book-landing .bl-card--premium {
  background: linear-gradient(160deg, var(--bl-white) 0%, var(--bl-blue-50) 100%);
  border: 1px solid var(--bl-color-border);
  box-shadow: var(--bl-shadow-xl);
  border-radius: var(--bl-radius-2xl);
  padding: var(--bl-space-8);
}

/* Card sections */
.book-landing .bl-card__title {
  font-size: var(--bl-text-lg);
  font-weight: var(--bl-weight-bold);
  margin-top: var(--bl-space-2);
}
.book-landing .bl-card__desc {
  color: var(--bl-color-text-muted);
  font-size: var(--bl-text-sm);
  line-height: var(--bl-leading-normal);
  margin-top: var(--bl-space-2);
}


/* =============================================================
   4. INPUT
   ============================================================= */

.book-landing .bl-input {
  width: 100%;
  padding: var(--bl-space-3) var(--bl-space-4);
  font-size: var(--bl-text-base);
  color: var(--bl-color-text);
  background: var(--bl-color-surface);
  border: 1.5px solid var(--bl-color-border-strong);
  border-radius: var(--bl-radius-md);
  transition:
    border-color var(--bl-duration-fast) var(--bl-ease-smooth),
    box-shadow var(--bl-duration-fast) var(--bl-ease-smooth);
}

.book-landing .bl-input::placeholder {
  color: var(--bl-color-text-subtle);
}

.book-landing .bl-input:focus {
  outline: none;
  border-color: var(--bl-color-primary);
  box-shadow: 0 0 0 3px rgba(0, 113, 220, 0.15);
}

.book-landing .bl-input--error {
  border-color: var(--bl-danger);
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.10);
}
.book-landing .bl-input--valid {
  border-color: var(--bl-success);
}

.book-landing .bl-input__label {
  display: block;
  font-size: var(--bl-text-sm);
  font-weight: var(--bl-weight-semibold);
  color: var(--bl-color-text);
  margin-bottom: var(--bl-space-2);
}

.book-landing .bl-input__helper {
  font-size: var(--bl-text-xs);
  color: var(--bl-color-text-muted);
  margin-top: var(--bl-space-2);
}


/* ==================================================================


   2. SECCIONES DE LA LANDING
   ──────────────────────────────────────────────────────────────────
   Cada sección tiene un wrapper con su propio bloque BEM y sus
   elementos internos. El esqueleto (.bl-section/.bl-container) está
   en layout.css; aquí solo los detalles visuales de cada sección.


   ================================================================== */


/* =============================================================
   3. HERO  (.bl-hero)
   ──────────────────────────────────────────────────────────────
   Hero a sangre (container--full o --wide) con el libro 3D
   flotando, título, descripción, badges y 2 CTAs.

   Layout:
   - Mobile  → 1 col     (texto arriba, libro abajo)
   - Desktop → 2 col     (libro arriba a la izq/derecha, texto a un lado)

   Decisión: libro primero visualmente (eyebrow + título pasan a
   segundo plano en desktop). El libro es el protagonista absoluto
   per el brief.
   ============================================================= */

.book-landing .bl-hero {
  position: relative;
  overflow: hidden;
  padding-top: clamp(var(--bl-space-3), 1.5vw, var(--bl-space-5));
  padding-bottom: clamp(var(--bl-space-5), 4vw, var(--bl-space-7));
  background:
    radial-gradient(ellipse at 70% 30%, rgba(0, 113, 220, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse at 30% 80%, rgba(2, 30, 64, 0.06) 0%, transparent 50%),
    var(--bl-color-bg);
}

/* Grid del hero */
.book-landing .bl-hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--bl-space-6);
  align-items: center;
}

@media (min-width: 1024px) {
  .book-landing .bl-hero__inner {
    grid-template-columns: 1.1fr 0.9fr;
    gap: var(--bl-space-8);
  }
}

/* Bloque de contenido (texto) */
.book-landing .bl-hero__content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--bl-space-4);
}

.book-landing .bl-hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--bl-space-2);
}

.book-landing .bl-hero__title {
  font-size: clamp(2.5rem, 1.4rem + 4vw, 4rem);
  line-height: var(--bl-leading-tight);
  letter-spacing: var(--bl-tracking-tight);
  color: var(--bl-color-text-heading);
  max-width: 16ch;
}

.book-landing .bl-hero__title-accent {
  color: var(--bl-color-primary);
}

.book-landing .bl-hero__desc {
  font-size: var(--bl-text-lg);
  color: var(--bl-color-text-muted);
  max-width: 52ch;
  line-height: var(--bl-leading-relaxed);
}

.book-landing .bl-hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--bl-space-3);
  margin-top: 0;
}

.book-landing .bl-hero__meta {
  display: flex;
  align-items: center;
  gap: var(--bl-space-3);
  margin-top: 0;
  font-size: var(--bl-text-sm);
  color: var(--bl-color-text-muted);
}

/* Bloque del libro */
.book-landing .bl-hero__visual {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 0;
  perspective: 1200px;
}


/* =============================================================
   3.1 BOOK 3D  (.bl-book3d)
   ──────────────────────────────────────────────────────────────
   Construido 100% en CSS (sin JS). Un rectángulo con:
     - gradiente simulando el lomo + tapas
     - sombra proyectada en el suelo
     - transform rotateY/rotateX para perspectiva 3D
     - animación float sutil

   El libro es "virtual": usaremos la portada del libro (img) como
   la cara principal. Mientras tanto, en el preview usamos una
   coverPlaceholder con gradiente.
   ============================================================= */

.book-landing .bl-book3d {
  position: relative;
  width: clamp(180px, 22vw, 260px);
  aspect-ratio: 3 / 4;  /* default: portada vertical clásica de libro */
  transform-style: preserve-3d;
  transform: rotateY(-22deg) rotateX(6deg);
  animation: bl-float var(--bl-float-duration) ease-in-out infinite;
  will-change: transform;
}

/* Si la portada subida es vertical (relación real de libro), usamos 3/5 */
.book-landing .bl-book3d--image {
  aspect-ratio: 3 / 5;
}

/* Cara frontal (cover) — placeholder con gradiente cuando no hay imagen */
.book-landing .bl-book3d__cover {
  position: absolute;
  inset: 0;
  border-radius: 4px 10px 10px 4px;
  background:
    linear-gradient(125deg, var(--bl-blue-700) 0%, var(--bl-blue-900) 100%);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.06),
    var(--bl-shadow-book);
  overflow: hidden;
}

/* Variante con imagen real de portada */
.book-landing .bl-book3d--image .bl-book3d__cover-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  border-radius: 8px 16px 16px 8px;
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.12),
    inset 6px 0 12px -4px rgba(0, 0, 0, 0.25),
    -6px 6px 20px -2px rgba(2, 30, 64, 0.30),
    -18px 22px 50px -10px rgba(2, 30, 64, 0.45);
}

/* Brillo sutil sobre la imagen para sensación premium satinada */
.book-landing .bl-book3d--image .bl-book3d__cover-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg,
    rgba(255, 255, 255, 0.08) 0%,
    transparent 40%,
    transparent 60%,
    rgba(255, 255, 255, 0.04) 100%);
  pointer-events: none;
  border-radius: inherit;
}

/* Línea de oro en la portada (detalle premium) */
.book-landing .bl-book3d__cover::before {
  content: "";
  position: absolute;
  top: 9%;
  left: 16%;
  right: 16%;
  height: 1.5px;
  background: var(--bl-gold-500);
  border-radius: var(--bl-radius-pill);
  opacity: 0.85;
}

/* Marca editorial superior (iniciales autor o URL del sitio) */
.book-landing .bl-book3d__cover-mark {
  position: absolute;
  top: 14%;
  left: 16%;
  font-family: var(--bl-font-display);
  font-size: 0.7rem;
  font-weight: var(--bl-weight-bold);
  color: var(--bl-gold-500);
  letter-spacing: var(--bl-tracking-uppercase);
}

/* Título principal del libro en la portada */
.book-landing .bl-book3d__cover-title {
  position: absolute;
  top: 28%;
  left: 16%;
  right: 16%;
  font-family: var(--bl-font-display);
  font-size: clamp(0.95rem, 1.6vw, 1.4rem);
  font-weight: var(--bl-weight-extrabold);
  line-height: 1.1;
  color: var(--bl-white);
  letter-spacing: var(--bl-tracking-tight);
}

/* Subtítulo del libro (debajo del título) */
.book-landing .bl-book3d__cover-subtitle {
  position: absolute;
  top: 48%;
  left: 16%;
  right: 16%;
  font-family: var(--bl-font-body);
  font-size: clamp(0.6rem, 1vw, 0.82rem);
  font-weight: var(--bl-weight-regular);
  line-height: 1.35;
  color: var(--bl-blue-100);
  letter-spacing: 0;
}

/* Autor en la parte inferior */
.book-landing .bl-book3d__cover-author {
  position: absolute;
  bottom: 12%;
  left: 16%;
  right: 16%;
  font-size: clamp(0.6rem, 0.9vw, 0.75rem);
  font-weight: var(--bl-weight-semibold);
  color: var(--bl-gold-400);
  letter-spacing: var(--bl-tracking-uppercase);
  text-transform: uppercase;
}

/* Línea fina inferior (espejo de la superior) */
.book-landing .bl-book3d__cover::after {
  content: "";
  position: absolute;
  bottom: 7%;
  left: 16%;
  right: 16%;
  height: 1px;
  background: var(--bl-gold-500);
  border-radius: var(--bl-radius-pill);
  opacity: 0.55;
}

/* Lomo (el lado izquierdo del libro) — ilusión de grosor */
.book-landing .bl-book3d__spine {
  position: absolute;
  top: 0;
  left: 0;
  width: 18px;
  height: 100%;
  transform-origin: left center;
  transform: rotateY(90deg) translateX(-9px);
  background: linear-gradient(180deg, var(--bl-blue-800), var(--bl-blue-900));
  border-radius: 4px 0 0 4px;
}

/* Páginas (lado derecho) — linea blanca que sugiere páginas */
.book-landing .bl-book3d__pages {
  position: absolute;
  top: 4px;
  bottom: 4px;
  right: -3px;
  width: 6px;
  background: repeating-linear-gradient(
    180deg,
    #fff 0,
    #fff 1px,
    #e8e8e8 1px,
    #e8e8e8 2px
  );
  border-radius: 1px;
}

/* Sombra proyectada en el "suelo" */
.book-landing .bl-book3d__shadow {
  position: absolute;
  bottom: -8%;
  left: 8%;
  right: 8%;
  height: 22px;
  background: radial-gradient(ellipse, rgba(2, 30, 64, 0.35) 0%, transparent 70%);
  filter: blur(8px);
  transform: rotateX(80deg) translateZ(-20px);
  animation: bl-float-shadow var(--bl-float-duration) ease-in-out infinite;
}


/* =============================================================
   4. BENEFITS  (.bl-benefits)
   ──────────────────────────────────────────────────────────────
   Grid de 6 beneficios con icono + título + descripción corta.
   Reutiliza .bl-card--lift de components.css y .bl-grid--6 o
   .bl-grid según densidad deseada.

   Decisión: usar .bl-grid (auto-fit 240px) en lugar de --6 para
   que los cards no se compriman demasiado en tablet. Máximo 3
   columnas → 2 filas de 3.
   ============================================================= */

.book-landing .bl-benefits__head {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--bl-space-2);
  max-width: 54ch;
  margin: 0 auto var(--bl-space-8);
}

.book-landing .bl-benefits__title {
  font-size: var(--bl-text-3xl);
}

.book-landing .bl-benefits__subtitle {
  color: var(--bl-color-text-muted);
  font-size: var(--bl-text-lg);
}

/* Item individual */
.book-landing .bl-benefit {
  display: flex;
  flex-direction: column;
  gap: var(--bl-space-3);
  text-align: left;
}

.book-landing .bl-benefit__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: var(--bl-radius-lg);
  background: var(--bl-blue-50);
  color: var(--bl-color-primary);
  flex-shrink: 0;
  transition:
    background-color var(--bl-duration) var(--bl-ease-smooth),
    color var(--bl-duration) var(--bl-ease-smooth),
    transform var(--bl-duration) var(--bl-ease-out);
}

.book-landing .bl-benefit:hover .bl-benefit__icon {
  background: var(--bl-color-primary);
  color: var(--bl-white);
  transform: scale(1.08);
}

.book-landing .bl-benefit__icon svg {
  width: 28px;
  height: 28px;
  stroke: currentColor;
  stroke-width: 1.6;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.book-landing .bl-benefit__title {
  font-size: var(--bl-text-lg);
  font-weight: var(--bl-weight-bold);
  color: var(--bl-color-text-heading);
}

.book-landing .bl-benefit__desc {
  font-size: var(--bl-text-sm);
  color: var(--bl-color-text-muted);
  line-height: var(--bl-leading-normal);
}


/* =============================================================
   5. EXPLORE  (.bl-explore)
   ──────────────────────────────────────────────────────────────
   Preview del libro a la izquierda, capítulos destacados a la
   derecha. Reutiliza .bl-grid--2 del layout.

   Decisión: capítulos como lista numerada con densidad generosa
   (no list interminable → despertar curiosidad per el brief).
   ============================================================= */

.book-landing .bl-explore__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--bl-space-8);
  align-items: center;
}

@media (min-width: 1024px) {
  .book-landing .bl-explore__inner {
    grid-template-columns: 0.9fr 1.1fr;
    gap: var(--bl-space-9);
  }
}

/* Bloque de preview (mockup del libro abierto) */
.book-landing .bl-explore__preview {
  position: relative;
  aspect-ratio: 4 / 3;
  background: var(--bl-color-surface);
  border-radius: var(--bl-radius-xl);
  overflow: hidden;
  border: 1px solid var(--bl-color-border);
  background:
    linear-gradient(135deg, var(--bl-blue-50) 0%, var(--bl-white) 60%, var(--bl-gray-100) 100%);
  box-shadow: var(--bl-shadow-lg);
}

/* Mockup del libro abierto con dos páginas */
.book-landing .bl-explore__book-open {
  position: absolute;
  inset: 12% 8% 8%;
  display: flex;
  background: var(--bl-white);
  border-radius: 4px;
  box-shadow: var(--bl-shadow-md);
  overflow: hidden;
}

/* Línea central (lomo abierto) */
.book-landing .bl-explore__book-open::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--bl-color-border-strong);
  z-index: 2;
}

/* Cada página */
.book-landing .bl-explore__page {
  flex: 1;
  padding: clamp(var(--bl-space-3), 3vw, var(--bl-space-5));
  display: flex;
  flex-direction: column;
  gap: var(--bl-space-2);
}

/* Líneas simulando texto */
.book-landing .bl-explore__line {
  height: 6px;
  background: var(--bl-gray-200);
  border-radius: var(--bl-radius-pill);
}
.book-landing .bl-explore__line--short { width: 60%; }
.book-landing .bl-explore__line--mid   { width: 80%; }
.book-landing .bl-explore__line--long  { width: 100%; }
.book-landing .bl-explore__line--title { height: 10px; background: var(--bl-blue-200); margin-bottom: var(--bl-space-2); }

/* Bloque de capítulos */
.book-landing .bl-explore__content {
  display: flex;
  flex-direction: column;
  gap: var(--bl-space-5);
}

.book-landing .bl-explore__title {
  font-size: var(--bl-text-3xl);
  color: var(--bl-color-text-heading);
}

.book-landing .bl-explore__subtitle {
  color: var(--bl-color-text-muted);
  font-size: var(--bl-text-lg);
}

.book-landing .bl-explore__list {
  display: flex;
  flex-direction: column;
  gap: var(--bl-space-3);
  margin-top: var(--bl-space-2);
}

.book-landing .bl-explore__chapter {
  display: flex;
  align-items: flex-start;
  gap: var(--bl-space-4);
  padding: var(--bl-space-4) var(--bl-space-4);
  border-radius: var(--bl-radius-lg);
  background: var(--bl-color-bg-subtle);
  border: 1px solid var(--bl-color-border);
  transition:
    background-color var(--bl-duration) var(--bl-ease-smooth),
    border-color var(--bl-duration) var(--bl-ease-smooth),
    transform var(--bl-duration-fast) var(--bl-ease-out);
}

.book-landing .bl-explore__chapter:hover {
  border-color: var(--bl-color-primary);
  background: var(--bl-white);
  transform: translateX(4px);
}

.book-landing .bl-explore__chapter-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  border-radius: var(--bl-radius-md);
  background: var(--bl-color-primary);
  color: var(--bl-color-on-primary);
  font-family: var(--bl-font-display);
  font-weight: var(--bl-weight-bold);
  font-size: var(--bl-text-sm);
}

.book-landing .bl-explore__chapter-title {
  font-weight: var(--bl-weight-semibold);
  color: var(--bl-color-text-heading);
  font-size: var(--bl-text-md);
  line-height: 1.3;
}

.book-landing .bl-explore__chapter-desc {
  font-size: var(--bl-text-sm);
  color: var(--bl-color-text-muted);
  margin-top: var(--bl-space-1);
  line-height: var(--bl-leading-normal);
}


/* =============================================================
   4.1 BENEFITS · Grid 5 en fila (desktop)
   ──────────────────────────────────────────────────────────────
   Override del .bl-grid para benefits: 5 columnas en desktop,
   2 en tablet, 1 en mobile. Igual ancho para todas las cards.
   ============================================================= */

.book-landing .bl-benefits__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--bl-space-4);
}

@media (min-width: 640px) {
  .book-landing .bl-benefits__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .book-landing .bl-benefits__grid {
    grid-template-columns: repeat(5, 1fr);
    gap: var(--bl-space-5);
  }
}

/* En desktop, todas las cards misma altura */
@media (min-width: 1024px) {
  .book-landing .bl-benefits__grid .bl-benefit {
    height: 100%;
  }
}


/* =============================================================
   5.1 EXPLORE · TABS (Propuesta A)
   ──────────────────────────────────────────────────────────────
   Tabs interactivas que muestran una "key question" del capítulo.
   Al hacer click, el bloque contenido cambia con fade-in.
   ============================================================= */

.book-landing .bl-explore__tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--bl-space-1);
  padding: var(--bl-space-1);
  background: var(--bl-color-bg-muted);
  border-radius: var(--bl-radius-pill);
  width: fit-content;
  max-width: 100%;
  margin-left: auto;
  margin-right: auto;
  overflow-x: auto;
  scrollbar-width: none;
}

.book-landing .bl-explore__tab {
  padding: var(--bl-space-2) var(--bl-space-4);
  font-size: var(--bl-text-sm);
  font-weight: var(--bl-weight-semibold);
  color: var(--bl-color-text-muted);
  border-radius: var(--bl-radius-pill);
  white-space: nowrap;
  transition:
    background-color var(--bl-duration-fast) var(--bl-ease-smooth),
    color var(--bl-duration-fast) var(--bl-ease-smooth);
}

.book-landing .bl-explore__tab:hover {
  color: var(--bl-color-text-heading);
}

.book-landing .bl-explore__tab.is-active {
  background: var(--bl-color-primary);
  color: var(--bl-color-on-primary);
}

/* Panel contenedor (lo que cambia al hacer click) */
.book-landing .bl-explore__panel {
  display: none;
  flex-direction: column;
  gap: var(--bl-space-3);
  animation: bl-fade-in var(--bl-duration) var(--bl-ease-out) backwards;
}

.book-landing .bl-explore__panel.is-visible {
  display: flex;
}

.book-landing .bl-explore__panel-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--bl-radius-md);
  background: var(--bl-color-primary);
  color: var(--bl-color-on-primary);
  font-family: var(--bl-font-display);
  font-weight: var(--bl-weight-bold);
  font-size: var(--bl-text-sm);
}

.book-landing .bl-explore__panel-question {
  font-family: var(--bl-font-display);
  font-size: var(--bl-text-2xl);
  font-weight: var(--bl-weight-bold);
  color: var(--bl-color-text-heading);
  line-height: var(--bl-leading-tight);
  max-width: 28ch;
}

.book-landing .bl-explore__panel-answer {
  font-size: var(--bl-text-md);
  color: var(--bl-color-text-muted);
  line-height: var(--bl-leading-normal);
  max-width: 54ch;
}

.book-landing .bl-explore__panel-meta {
  display: flex;
  gap: var(--bl-space-3);
  margin-top: var(--bl-space-2);
  font-size: var(--bl-text-xs);
  color: var(--bl-color-text-subtle);
  letter-spacing: var(--bl-tracking-wide);
  text-transform: uppercase;
}


/* =============================================================
   6. STATS BAND  (.bl-stats)
   ──────────────────────────────────────────────────────────────
   Franja fina tipográfica. Versión A: line-up en mayúsculas.
   Texto pequeño, tracking amplio, color muted.
   ============================================================= */

.book-landing .bl-stats {
  padding-block: clamp(var(--bl-space-4), 2.5vw, var(--bl-space-5));
  background: var(--bl-color-bg-subtle);
  border-block: 1px solid var(--bl-color-border);
}

.book-landing .bl-stats__row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--bl-space-5);
  font-size: var(--bl-text-xs);
  font-weight: var(--bl-weight-semibold);
  letter-spacing: var(--bl-tracking-uppercase);
  text-transform: uppercase;
  color: var(--bl-color-text-muted);
}

.book-landing .bl-stats__item--accent {
  color: var(--bl-color-text-heading);
}

.book-landing .bl-stats__sep {
  color: var(--bl-color-border-strong);
  font-weight: var(--bl-weight-regular);
}

@media (max-width: 640px) {
  .book-landing .bl-stats__sep {
    display: none;
  }
  .book-landing .bl-stats__row {
    flex-direction: column;
    gap: var(--bl-space-1);
  }
}


/* =============================================================
   7. AUTHOR  (.bl-author)
   ──────────────────────────────────────────────────────────────
   2 columnas en desktop, 1 en mobile. Foto a la izquierda.
   Diseño austero: foto + 3 datos + cita. Sin biografía extensa.
   ============================================================= */

.book-landing .bl-author__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--bl-space-8);
  align-items: center;
}

@media (min-width: 1024px) {
  .book-landing .bl-author__inner {
    grid-template-columns: 0.85fr 1.15fr;
    gap: var(--bl-space-10);
  }
}

/* Foto */
.book-landing .bl-author__photo {
  position: relative;
  aspect-ratio: 4 / 5;
  border-radius: var(--bl-radius-2xl);
  overflow: hidden;
  background: var(--bl-color-bg-muted);
  box-shadow: var(--bl-shadow-lg);
}

.book-landing .bl-author__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 20%;
}

/* Tag flotante sobre la foto (rol + especialidad) */
.book-landing .bl-author__tag {
  position: absolute;
  bottom: var(--bl-space-4);
  left: var(--bl-space-4);
  right: var(--bl-space-4);
  padding: var(--bl-space-3) var(--bl-space-4);
  background: var(--bl-glass-bg);
  backdrop-filter: blur(var(--bl-blur-glass));
  -webkit-backdrop-filter: blur(var(--bl-blur-glass));
  border: 1px solid var(--bl-glass-border);
  border-radius: var(--bl-radius-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--bl-space-3);
}

.book-landing .bl-author__tag-name {
  font-family: var(--bl-font-display);
  font-weight: var(--bl-weight-bold);
  color: var(--bl-color-text-heading);
  font-size: var(--bl-text-md);
}

.book-landing .bl-author__tag-role {
  font-size: var(--bl-text-xs);
  color: var(--bl-color-text-muted);
  font-weight: var(--bl-weight-medium);
  letter-spacing: var(--bl-tracking-wide);
  text-transform: uppercase;
}

/* Bloque textual */
.book-landing .bl-author__content {
  display: flex;
  flex-direction: column;
  gap: var(--bl-space-5);
}

.book-landing .bl-author__eyebrow {
  font-size: var(--bl-text-sm);
  font-weight: var(--bl-weight-semibold);
  letter-spacing: var(--bl-tracking-uppercase);
  text-transform: uppercase;
  color: var(--bl-color-primary);
}

.book-landing .bl-author__title {
  font-family: var(--bl-font-display);
  font-size: var(--bl-text-3xl);
  font-weight: var(--bl-weight-extrabold);
  color: var(--bl-color-text-heading);
  line-height: var(--bl-leading-tight);
}

.book-landing .bl-author__quote {
  font-family: var(--bl-font-display);
  font-size: var(--bl-text-xl);
  font-weight: var(--bl-weight-medium);
  line-height: var(--bl-leading-snug);
  color: var(--bl-color-text);
  padding-left: var(--bl-space-5);
  border-left: 3px solid var(--bl-color-primary);
  max-width: 48ch;
}

.book-landing .bl-author__quote-author {
  display: block;
  margin-top: var(--bl-space-3);
  font-family: var(--bl-font-body);
  font-size: var(--bl-text-sm);
  font-weight: var(--bl-weight-semibold);
  color: var(--bl-color-text-muted);
  letter-spacing: var(--bl-tracking-wide);
  text-transform: uppercase;
}

/* Fila de 3 datos (cifras clave) */
.book-landing .bl-author__facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--bl-space-4);
  padding-top: var(--bl-space-5);
  border-top: 1px solid var(--bl-color-border);
}

.book-landing .bl-author__fact-num {
  font-family: var(--bl-font-display);
  font-size: var(--bl-text-2xl);
  font-weight: var(--bl-weight-extrabold);
  color: var(--bl-color-primary);
  line-height: 1;
}

.book-landing .bl-author__fact-label {
  font-size: var(--bl-text-xs);
  color: var(--bl-color-text-muted);
  margin-top: var(--bl-space-1);
  letter-spacing: var(--bl-tracking-wide);
  text-transform: uppercase;
  line-height: 1.3;
}


/* =============================================================
   8. CHECKOUT / COMPRA  (.bl-checkout)
   ──────────────────────────────────────────────────────────────
   Order card premium, centrada, max 540px.
   Inspirado en checkout Apple/Wompi:.getProductPreview + price
   breakdown + discount input + CTA full + trust microcopy.
   ============================================================= */

.book-landing .bl-checkout__head {
  display: flex;
  justify-content: center;
  margin-bottom: var(--bl-space-7);
}

.book-landing .bl-checkout__head-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--bl-space-2);
}

.book-landing .bl-checkout__title {
  font-family: var(--bl-font-display);
  font-size: var(--bl-text-3xl);
  font-weight: var(--bl-weight-extrabold);
  color: var(--bl-color-text-heading);
}

.book-landing .bl-checkout__subtitle {
  color: var(--bl-color-text-muted);
  font-size: var(--bl-text-md);
  max-width: 44ch;
}

/* Order card */
.book-landing .bl-checkout__card {
  max-width: 540px;
  margin-inline: auto;
  padding: clamp(var(--bl-space-6), 4vw, var(--bl-space-8));
  background: linear-gradient(160deg, var(--bl-white) 0%, var(--bl-blue-50) 100%);
  border: 1px solid var(--bl-color-border);
  border-radius: var(--bl-radius-2xl);
  box-shadow: var(--bl-shadow-xl);
  display: flex;
  flex-direction: column;
  gap: var(--bl-space-5);
}

/* Fila superior: badge + pago seguro */
.book-landing .bl-checkout__top {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.book-landing .bl-checkout__secure {
  display: flex;
  align-items: center;
  gap: var(--bl-space-2);
  font-size: var(--bl-text-xs);
  color: var(--bl-color-text-muted);
  font-weight: var(--bl-weight-medium);
}

.book-landing .bl-checkout__secure svg {
  width: 16px;
  height: 16px;
  color: var(--bl-success);
}

/* Producto row */
.book-landing .bl-checkout__product {
  display: flex;
  align-items: center;
  gap: var(--bl-space-4);
  padding-block: var(--bl-space-4);
  border-block: 1px solid var(--bl-color-border);
}

.book-landing .bl-checkout__product-thumb {
  width: 64px;
  height: 84px;
  flex-shrink: 0;
  border-radius: 4px 8px 8px 4px;
  box-shadow: var(--bl-shadow-sm);
  position: relative;
  object-fit: cover;
  object-position: center;
}

.book-landing .bl-checkout__product-thumb::before {
  content: "";
  position: absolute;
  top: 22%;
  left: 14%;
  right: 14%;
  height: 1.5px;
  background: var(--bl-gold-500);
  border-radius: var(--bl-radius-pill);
  opacity: 0.8;
}

.book-landing .bl-checkout__product-info {
  display: flex;
  flex-direction: column;
  gap: var(--bl-space-1);
}

.book-landing .bl-checkout__product-name {
  font-family: var(--bl-font-display);
  font-size: var(--bl-text-md);
  font-weight: var(--bl-weight-bold);
  color: var(--bl-color-text-heading);
}

.book-landing .bl-checkout__product-desc {
  font-size: var(--bl-text-sm);
  color: var(--bl-color-text-muted);
}

/* Precio */
.book-landing .bl-checkout__price {
  display: flex;
  align-items: baseline;
  gap: var(--bl-space-3);
  flex-wrap: wrap;
}

.book-landing .bl-checkout__price-prev {
  font-size: var(--bl-text-md);
  color: var(--bl-color-text-muted);
  text-decoration: line-through;
  text-decoration-thickness: 1.5px;
}

.book-landing .bl-checkout__price-now {
  font-family: var(--bl-font-display);
  font-size: var(--bl-text-3xl);
  font-weight: var(--bl-weight-extrabold);
  color: var(--bl-color-text-heading);
  letter-spacing: var(--bl-tracking-tight);
}

.book-landing .bl-checkout__price-save {
  font-size: var(--bl-text-xs);
  font-weight: var(--bl-weight-semibold);
  color: var(--bl-success);
  background: rgba(22, 163, 74, 0.10);
  padding: var(--bl-space-1) var(--bl-space-2);
  border-radius: var(--bl-radius-pill);
}

.book-landing .bl-checkout__price-tag {
  font-size: 0.7rem;
  font-weight: var(--bl-weight-semibold);
  color: var(--bl-success);
  background: rgba(22, 163, 74, 0.10);
  padding: 2px var(--bl-space-2);
  border-radius: var(--bl-radius-pill);
  letter-spacing: var(--bl-tracking-wide);
  white-space: nowrap;
  line-height: 1.4;
  align-self: center;
}

/* Lista de incluidos */
.book-landing .bl-checkout__includes {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--bl-space-2);
}

.book-landing .bl-checkout__includes li {
  display: flex;
  align-items: flex-start;
  gap: var(--bl-space-2);
  font-size: var(--bl-text-sm);
  color: var(--bl-color-text);
  line-height: 1.4;
}

.book-landing .bl-checkout__includes svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: var(--bl-success);
  margin-top: 2px;
}

/* Discount input row */
.book-landing .bl-checkout__discount {
  display: flex;
  gap: var(--bl-space-2);
}

.book-landing .bl-checkout__discount .bl-input {
  flex: 1;
}

.book-landing .bl-checkout__discount-btn {
  padding: var(--bl-space-3) var(--bl-space-4);
  border: 1.5px solid var(--bl-color-border-strong);
  border-radius: var(--bl-radius-md);
  background: var(--bl-color-surface);
  font-size: var(--bl-text-sm);
  font-weight: var(--bl-weight-semibold);
  color: var(--bl-color-text-heading);
  cursor: pointer;
  transition:
    background-color var(--bl-duration-fast) var(--bl-ease-smooth),
    border-color var(--bl-duration-fast) var(--bl-ease-smooth);
}

.book-landing .bl-checkout__discount-btn:hover {
  background: var(--bl-color-bg-subtle);
  border-color: var(--bl-color-primary);
  color: var(--bl-color-primary);
}

/* CTA principal */
.book-landing .bl-checkout__cta {
  width: 100%;
  padding: var(--bl-space-4) var(--bl-space-5);
  font-size: var(--bl-text-md);
  scroll-margin-top: 120px; /* aterriza a ~2 líneas del botón tras click */
}

/* Microcopy de fricción */
.book-landing .bl-checkout__microcopy {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--bl-space-3);
  font-size: var(--bl-text-xs);
  color: var(--bl-color-text-muted);
  font-weight: var(--bl-weight-medium);
}

.book-landing .bl-checkout__microcopy span {
  display: flex;
  align-items: center;
  gap: var(--bl-space-1);
}

.book-landing .bl-checkout__microcopy span::before {
  content: "";
  width: 4px;
  height: 4px;
  background: var(--bl-color-border-strong);
  border-radius: 50%;
}

/* FAQ colapsable (deetails/summary) */
.book-landing .bl-checkout__faq {
  max-width: 540px;
  margin-inline: auto;
  margin-top: var(--bl-space-7);
  display: flex;
  flex-direction: column;
  gap: var(--bl-space-2);
}

.book-landing .bl-checkout__faq-item {
  border: 1px solid var(--bl-color-border);
  border-radius: var(--bl-radius-lg);
  background: var(--bl-color-surface);
  overflow: hidden;
  transition:
    border-color var(--bl-duration-fast) var(--bl-ease-smooth),
    box-shadow var(--bl-duration-fast) var(--bl-ease-smooth);
}

.book-landing .bl-checkout__faq-item:hover {
  border-color: var(--bl-color-border-strong);
}

.book-landing .bl-checkout__faq-item[open] {
  border-color: var(--bl-color-primary);
  box-shadow: var(--bl-shadow-sm);
}

.book-landing .bl-checkout__faq-item summary {
  list-style: none;
  padding: var(--bl-space-4) var(--bl-space-5);
  font-weight: var(--bl-weight-semibold);
  color: var(--bl-color-text-heading);
  font-size: var(--bl-text-md);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--bl-space-4);
  user-select: none;
}

.book-landing .bl-checkout__faq-item summary::-webkit-details-marker {
  display: none;
}

.book-landing .bl-checkout__faq-item summary::after {
  content: "+";
  font-size: var(--bl-text-lg);
  color: var(--bl-color-text-muted);
  flex-shrink: 0;
  transition: transform var(--bl-duration) var(--bl-ease-out);
}

.book-landing .bl-checkout__faq-item[open] summary::after {
  transform: rotate(45deg);
  color: var(--bl-color-primary);
}

.book-landing .bl-checkout__faq-answer {
  padding: 0 var(--bl-space-5) var(--bl-space-4);
  color: var(--bl-color-text-muted);
  font-size: var(--bl-text-sm);
  line-height: var(--bl-leading-normal);
}


/* =============================================================
   HERO · AJUSTES DEL SPRINT 1
   ──────────────────────────────────────────────────────────────
   Eyebrow (tagline del libro) sobre el h1 + precio fuera del CTA
   + chips de confianza debajo del CTA.
   ============================================================= */

/* Eyebrow del hero → tagline del libro */
.book-landing .bl-hero__tagline {
  font-size: var(--bl-text-sm);
  font-weight: var(--bl-weight-semibold);
  letter-spacing: var(--bl-tracking-uppercase);
  text-transform: uppercase;
  color: var(--bl-color-primary);
  margin-bottom: calc(var(--bl-space-1) * -1);
}

/* Precio fuera del botón */
.book-landing .bl-hero__price {
  display: flex;
  align-items: center;
  gap: var(--bl-space-2);
  flex-wrap: wrap;
}

.book-landing .bl-hero__price-now {
  font-family: var(--bl-font-display);
  font-size: var(--bl-text-xl);
  font-weight: var(--bl-weight-bold);
  color: var(--bl-color-text-heading);
  line-height: 1;
}

.book-landing .bl-hero__price-prev {
  font-size: var(--bl-text-sm);
  color: var(--bl-color-text-muted);
  text-decoration: line-through;
  text-decoration-thickness: 1.5px;
}

/* Tag "Exclusivo preventa" junto al precio */
.book-landing .bl-hero__price-tag {
  font-size: 0.65rem;
  font-weight: var(--bl-weight-semibold);
  color: var(--bl-success);
  background: rgba(22, 163, 74, 0.10);
  padding: 2px var(--bl-space-2);
  border-radius: var(--bl-radius-pill);
  letter-spacing: var(--bl-tracking-wide);
  white-space: nowrap;
  line-height: 1.4;
}

/* Chips de confianza (debajo del CTA) */
.book-landing .bl-hero__chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--bl-space-3);
  margin-top: var(--bl-space-2);
}

.book-landing .bl-hero__chip {
  display: inline-flex;
  align-items: center;
  gap: var(--bl-space-1);
  font-size: var(--bl-text-xs);
  font-weight: var(--bl-weight-medium);
  color: var(--bl-color-text-muted);
}

.book-landing .bl-hero__chip svg {
  width: 14px;
  height: 14px;
  color: var(--bl-color-primary);
  flex-shrink: 0;
}

/* =============================================================
   5.2 EXPLORE � BOOK FLIP (Libro virtual con PDF.js)
   --------------------------------------------------------------
   Libro 3D con p�ginas que voltean al hacer click. Usa PDF.js
   para renderizar cada p�gina a canvas, y CSS 3D transforms
   para el efecto de hoja que rota.

   Estructura HTML:
   .bl-book
     .bl-book__pages
       .bl-book__page (�2 visibles: izquierda + derecha)
     .bl-book__nav (botones anterior/siguiente)
   ============================================================= */

.book-landing .bl-book {
  position: relative;
  width: clamp(280px, 95vw, 960px);
  aspect-ratio: 3 / 2;
  margin-inline: auto;
  perspective: 1600px;
  transform-style: preserve-3d;
}

/* El "libro abierto" � dos p�ginas lado a lado */
.book-landing .bl-book__pages {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  border-radius: var(--bl-radius-md);
  box-shadow: var(--bl-shadow-xl);
  background: var(--bl-white);
  overflow: hidden;
}

/* Cada p�gina (left + right) */
.book-landing .bl-book__page {
  flex: 1;
  position: relative;
  height: 100%;
  overflow: hidden;
  background: var(--bl-white);
}

.book-landing .bl-book__page--left {
  border-right: 1px solid var(--bl-color-border);
  box-shadow: inset -8px 0 16px -8px rgba(0, 0, 0, 0.15);
}

.book-landing .bl-book__page--right {
  box-shadow: inset 8px 0 16px -8px rgba(0, 0, 0, 0.15);
}

/* Canvas renderizado por PDF.js dentro de cada p�gina */
.book-landing .bl-book__page canvas {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

/* Loading overlay mientras PDF.js renderiza */
.book-landing .bl-book__page-loader {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bl-white);
  z-index: 2;
  transition: opacity var(--bl-duration) var(--bl-ease-smooth);
}

.book-landing .bl-book__page-loader.is-hidden {
  opacity: 0;
  pointer-events: none;
}

.book-landing .bl-book__page-loader-spinner {
  width: 28px;
  height: 28px;
  border: 2.5px solid var(--bl-color-border);
  border-top-color: var(--bl-color-primary);
  border-radius: 50%;
  animation: bl-spin 0.8s linear infinite;
}

@keyframes bl-spin {
  to { transform: rotate(360deg); }
}

/* Hoja que volea (overlay encima de right page) */
.book-landing .bl-book__flipping {
  position: absolute;
  top: 0;
  left: 50%;
  width: 50%;
  height: 100%;
  transform-origin: left center;
  transform-style: preserve-3d;
  z-index: 10;
  transition: transform var(--bl-duration-slow) var(--bl-ease-out);
  pointer-events: none;
}

.book-landing .bl-book__flipping-face {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  overflow: hidden;
  background: var(--bl-white);
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.15);
}

.book-landing .bl-book__flipping-face canvas {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

/* Front face (p�gina actual, visible al inicio) */
.book-landing .bl-book__flipping-front {
  transform: rotateY(0deg);
}

/* Back face (siguiente p�gina, visible cuando volea) */
.book-landing .bl-book__flipping-back {
  transform: rotateY(180deg);
}

/* Estado: volteando hacia adelante (next) */
.book-landing .bl-book.is-flipping-next .bl-book__flipping {
  transform: rotateY(-180deg);
}

/* Estado: volteando hacia atrs (prev) */
.book-landing .bl-book.is-flipping-prev .bl-book__flipping {
  transform: rotateY(180deg);
}

/* Navegacin: botones anterior/siguiente */
.book-landing .bl-book__nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--bl-space-5);
  gap: var(--bl-space-4);
  position: relative;
  z-index: 30;
}

.book-landing .bl-book__nav-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--bl-space-2);
  padding: var(--bl-space-2) var(--bl-space-4);
  font-size: var(--bl-text-sm);
  font-weight: var(--bl-weight-semibold);
  color: var(--bl-color-text-heading);
  background: var(--bl-color-surface);
  border: 1.5px solid var(--bl-color-border-strong);
  border-radius: var(--bl-radius-pill);
  cursor: pointer;
  transition:
    background-color var(--bl-duration-fast) var(--bl-ease-smooth),
    border-color var(--bl-duration-fast) var(--bl-ease-smooth),
    color var(--bl-duration-fast) var(--bl-ease-smooth);
}

.book-landing .bl-book__nav-btn:hover {
  border-color: var(--bl-color-primary);
  color: var(--bl-color-primary);
  background: var(--bl-color-bg-subtle);
}

.book-landing .bl-book__nav-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
  pointer-events: none;
}

.book-landing .bl-book__nav-indicator {
  font-size: var(--bl-text-sm);
  color: var(--bl-color-text-muted);
  font-weight: var(--bl-weight-medium);
  letter-spacing: var(--bl-tracking-wide);
}

/* Respetar reduced-motion: fade en lugar de rotate */
@media (prefers-reduced-motion: reduce) {
  .book-landing .bl-book__flipping {
    transition: opacity var(--bl-duration) var(--bl-ease-smooth);
  }
  .book-landing .bl-book.is-flipping-next .bl-book__flipping,
  .book-landing .bl-book.is-flipping-prev .bl-book__flipping {
    transform: none;
  }
}


/* ── Estado de carga al cambiar capítulo (fade-out suave) ──────── */
.book-landing .bl-book .bl-book__pages {
  transition: opacity 0.2s ease;
}
.book-landing .bl-book.is-loading .bl-book__pages {
  opacity: 0;
  pointer-events: none;
}

/* ── Hint de teclado (desktop con mouse) ─────────────────────────── */
.book-landing .bl-book__keyboard-hint {
  display: none;
  text-align: center;
  font-size: var(--bl-text-xs);
  color: var(--bl-color-text-subtle);
  margin-top: var(--bl-space-2);
  letter-spacing: var(--bl-tracking-wide);
}
@media (hover: hover) and (pointer: fine) {
  .book-landing .bl-book__keyboard-hint {
    display: block;
  }
}

/* ── Hint de swipe (solo móvil táctil) ─────────────────────────── */
.book-landing .bl-book__swipe-hint {
  display: none;
  text-align: center;
  font-size: var(--bl-text-xs);
  color: var(--bl-color-text-subtle);
  margin-top: var(--bl-space-2);
}
@media (hover: none) and (pointer: coarse) {
  .book-landing .bl-book__swipe-hint {
    display: block;
  }
}
/* =============================================================
   PAYWALL (Libro virtual)
   Aparece sobre la página derecha cuando el usuario llega a pág 3.
   ============================================================= */
.book-landing .bl-book.is-paywalled .bl-book__page--right canvas {
  filter: blur(4px);
  user-select: none;
}

.book-landing .bl-book__paywall {
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  z-index: 20;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: linear-gradient(135deg, rgba(255,255,255,0.92) 0%, rgba(240,247,255,0.95) 100%);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-left: 1px solid var(--bl-color-border);
  border-radius: 0 var(--bl-radius-md) var(--bl-radius-md) 0;
  opacity: 0;
  pointer-events: none;
  transform: translateX(20px);
  transition:
    opacity var(--bl-duration-slow) var(--bl-ease-out),
    transform var(--bl-duration-slow) var(--bl-ease-out);
}

.book-landing .bl-book.is-paywalled .bl-book__paywall {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(0);
}

.book-landing .bl-book__paywall-box {
  background: var(--bl-white);
  padding: var(--bl-space-6);
  border-radius: var(--bl-radius-xl);
  box-shadow: var(--bl-shadow-lg);
  border: 1px solid var(--bl-color-border-strong);
  max-width: 280px;
  width: calc(100% - var(--bl-space-6));
  display: flex;
  flex-direction: column;
  gap: var(--bl-space-3);
}

.book-landing .bl-book__paywall-box > * {
  transform: translateY(8px);
  opacity: 0;
  transition:
    opacity var(--bl-duration-slow) var(--bl-ease-out),
    transform var(--bl-duration-slow) var(--bl-ease-out);
}

.book-landing .bl-book.is-paywalled .bl-book__paywall-box > * {
  transform: translateY(0);
  opacity: 1;
}

.book-landing .bl-book.is-paywalled .bl-book__paywall-box > *:nth-child(1) { transition-delay: 100ms; }
.book-landing .bl-book.is-paywalled .bl-book__paywall-box > *:nth-child(2) { transition-delay: 180ms; }
.book-landing .bl-book.is-paywalled .bl-book__paywall-box > *:nth-child(3) { transition-delay: 260ms; }

.book-landing .bl-book__paywall-title {
  font-family: var(--bl-font-display);
  font-size: var(--bl-text-xl);
  font-weight: var(--bl-weight-bold);
  color: var(--bl-color-text-heading);
}

.book-landing .bl-book__paywall-desc {
  font-size: var(--bl-text-sm);
  color: var(--bl-color-text-muted);
  line-height: var(--bl-leading-normal);
}