/* ============================================================================
   CATÁLOGO DE LIBROS — Mentis Viva Editorial
   Pegar este archivo como /css/catalogo.css y enlazarlo desde editorial.html:
   <link rel="stylesheet" href="css/catalogo.css">

   Variables que asume disponibles (ya están en styles.css):
     --teal, --green, --text-primary, --text-secondary, --text-muted,
     --gray-50, --gray-100, --gray-200, --gray-500, --shadow-sm, --shadow-md
   Si alguna no existe, hace fallback a un valor seguro.
   ============================================================================ */

.catalogo-section {
  /* Menos padding-top porque la sección anterior (filosofía) ya tiene su propio padding-bottom */
  padding: clamp(24px, 4vw, 48px) 0 clamp(48px, 8vw, 96px);
  background: linear-gradient(180deg, #fff 0%, var(--gray-50, #fafafa) 100%);
}

.catalogo-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 28px;
}

/* El eyebrow .section-label se mantiene visible (texto distinto al H2: ej. "Editorial Mentis Viva")
   para conservar el patrón de las demás secciones (eyebrow + título grande). */

.catalogo-header h2 {
  font-family: 'Cardo', serif;
  font-size: clamp(1.85rem, 4vw, 2.6rem);
  margin: 8px 0 12px;
  color: var(--text-primary, #1a1a1a);
  line-height: 1.15;
}

.catalogo-subtitulo {
  color: var(--text-secondary, #4a4a5a);
  line-height: 1.6;
  font-size: clamp(0.95rem, 1.5vw, 1.05rem);
}

/* ---------- Filtros por categoría ---------- */
.catalogo-filtros {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin: 0 auto 32px;
  padding: 0 16px;
  max-width: 100%;
}

.catalogo-filtro {
  background: #fff;
  border: 1.5px solid var(--gray-200, #e5e5e5);
  color: var(--text-secondary, #4a4a5a);
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
  font-family: inherit;
}

.catalogo-filtro:hover {
  border-color: var(--teal, #2B8A9E);
  color: var(--teal, #2B8A9E);
}

.catalogo-filtro.active {
  background: var(--teal, #2B8A9E);
  border-color: var(--teal, #2B8A9E);
  color: #fff;
}

.catalogo-filtro:focus-visible {
  outline: 3px solid rgba(43, 138, 158, 0.4);
  outline-offset: 2px;
}

/* ---------- Carrusel wrapper + flechas ---------- */
.catalogo-carrusel-wrapper {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 16px;
}

.catalogo-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 4;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: none;
  background: #fff;
  box-shadow: var(--shadow-md, 0 4px 12px rgba(0, 0, 0, 0.12));
  color: var(--text-primary, #1a1a1a);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: all 0.2s ease;
}

.catalogo-nav:hover:not([disabled]) {
  background: var(--teal, #2B8A9E);
  color: #fff;
  transform: translateY(-50%) scale(1.06);
}

.catalogo-nav[disabled] {
  opacity: 0.35;
  cursor: not-allowed;
}

.catalogo-nav-prev { left: -8px; }
.catalogo-nav-next { right: -8px; }

@media (max-width: 600px) {
  .catalogo-nav {
    /* Las flechas en mobile se ocultan; el usuario hace swipe */
    display: none;
  }
}

/* ---------- Carrusel (scroll horizontal con snap) ---------- */
.catalogo-carrusel {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  scroll-behavior: smooth;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
  scrollbar-color: var(--gray-200, #e5e5e5) transparent;
  padding: 8px 4px 28px;   /* padding inferior para que no corte la sombra de las cards */
  -webkit-overflow-scrolling: touch;
}

.catalogo-carrusel::-webkit-scrollbar { height: 6px; }
.catalogo-carrusel::-webkit-scrollbar-track { background: transparent; }
.catalogo-carrusel::-webkit-scrollbar-thumb {
  background: var(--gray-200, #e5e5e5);
  border-radius: 3px;
}
.catalogo-carrusel::-webkit-scrollbar-thumb:hover { background: var(--gray-500, #6c757d); }

.catalogo-carrusel:focus-visible {
  outline: 2px solid var(--teal, #2B8A9E);
  outline-offset: 4px;
  border-radius: 8px;
}

/* ---------- Card de libro ---------- */
.libro-card {
  flex: 0 0 240px;
  scroll-snap-align: start;
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-sm, 0 2px 6px rgba(0, 0, 0, 0.08));
  border: 1px solid var(--gray-100, #f0f0f0);
  cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  display: flex;
  flex-direction: column;
  text-align: left;
  padding: 0;
  font-family: inherit;
  color: inherit;
}

.libro-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.12);
}

.libro-card:focus-visible {
  outline: 3px solid var(--teal, #2B8A9E);
  outline-offset: 2px;
}

.libro-card-portada {
  position: relative;
  width: 100%;
  aspect-ratio: 2 / 3;        /* proporción típica de portada de libro */
  overflow: hidden;
  background: var(--gray-100, #f0f0f0);
}

.libro-card-portada img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.libro-card:hover .libro-card-portada img { transform: scale(1.04); }

.libro-card-portada-fallback {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--gray-500, #6c757d);
  background: linear-gradient(135deg, var(--gray-100, #f0f0f0), var(--gray-200, #e5e5e5));
}

.libro-card-destacado {
  position: absolute;
  top: 8px;
  left: 8px;
  background: linear-gradient(135deg, #ffd700, #f5a623);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 12px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  box-shadow: 0 2px 6px rgba(245, 166, 35, 0.4);
}

.libro-card-destacado i { margin-right: 4px; }

.libro-card-body {
  padding: 14px 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}

.libro-card-categoria {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--teal, #2B8A9E);
  font-weight: 600;
}

.libro-card-titulo {
  font-family: 'Cardo', serif;
  font-size: 1.1rem;
  line-height: 1.25;
  color: var(--text-primary, #1a1a1a);
  margin: 0;
  /* Truncado a 2 líneas */
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.libro-card-autor {
  font-size: 0.85rem;
  color: var(--text-muted, #6c757d);
  margin: 0;
  font-style: italic;
}

.libro-card-resumen {
  font-size: 0.85rem;
  color: var(--text-secondary, #4a4a5a);
  line-height: 1.5;
  margin: 6px 0 0;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.libro-card-cta {
  margin-top: auto;
  padding-top: 12px;
  font-size: 0.85rem;
  color: var(--teal, #2B8A9E);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.libro-card:hover .libro-card-cta i { transform: translateX(2px); }
.libro-card-cta i { transition: transform 0.2s ease; }

/* ---------- Dots (mobile) ---------- */
.catalogo-dots {
  display: none;
  justify-content: center;
  gap: 6px;
  margin-top: 4px;
}

@media (max-width: 600px) {
  .catalogo-dots { display: flex; }
}

.catalogo-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gray-200, #e5e5e5);
  border: none;
  padding: 0;
  cursor: pointer;
  transition: all 0.2s ease;
}

.catalogo-dot.active {
  background: var(--teal, #2B8A9E);
  width: 22px;
  border-radius: 4px;
}

/* ---------- Empty state ---------- */
.catalogo-empty {
  text-align: center;
  color: var(--text-muted, #6c757d);
  padding: 40px 20px;
  font-style: italic;
}

/* =========================================================================
   MODAL — Pop-up con detalle del libro
   ========================================================================= */

.catalogo-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.catalogo-modal:not([hidden]) {
  opacity: 1;
  pointer-events: auto;
}

.catalogo-modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(20, 25, 35, 0.7);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.catalogo-modal-content {
  position: relative;
  background: #fff;
  border-radius: 16px;
  max-width: 880px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  /* Evita scroll-chaining: cuando llegues al fondo del modal, el body NO scrollea */
  overscroll-behavior: contain;
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.3);
  transform: translateY(20px) scale(0.97);
  transition: transform 0.25s ease;
}

.catalogo-modal:not([hidden]) .catalogo-modal-content {
  transform: translateY(0) scale(1);
}

.catalogo-modal-content:focus { outline: none; }

.catalogo-modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 5;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.92);
  color: var(--text-primary, #1a1a1a);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  transition: all 0.2s ease;
}

.catalogo-modal-close:hover {
  background: var(--text-primary, #1a1a1a);
  color: #fff;
  transform: rotate(90deg);
}

.catalogo-modal-close:focus-visible {
  outline: 3px solid var(--teal, #2B8A9E);
  outline-offset: 2px;
}

.catalogo-modal-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 0;
}

@media (max-width: 720px) {
  .catalogo-modal-grid {
    grid-template-columns: 1fr;
  }
}

.catalogo-modal-portada {
  position: relative;
  padding: 24px;
  background: linear-gradient(135deg, var(--gray-50, #fafafa), var(--gray-100, #f0f0f0));
  display: flex;
  align-items: center;
  justify-content: center;
}

.catalogo-modal-portada img {
  width: 100%;
  max-width: 232px;
  aspect-ratio: 2 / 3;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
}

.modal-destacado-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  background: linear-gradient(135deg, #ffd700, #f5a623);
  color: #fff;
  padding: 6px 12px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  box-shadow: 0 2px 8px rgba(245, 166, 35, 0.4);
}

.catalogo-modal-info {
  padding: 32px clamp(24px, 4vw, 40px);
}

.modal-categoria {
  display: inline-block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--teal, #2B8A9E);
  font-weight: 600;
  margin-bottom: 8px;
}

.catalogo-modal-info h3 {
  font-family: 'Cardo', serif;
  font-size: clamp(1.5rem, 3vw, 2rem);
  line-height: 1.2;
  color: var(--text-primary, #1a1a1a);
  margin: 0 0 6px;
}

.modal-autor {
  font-size: 1rem;
  color: var(--text-muted, #6c757d);
  margin: 0 0 18px;
  font-style: italic;
}

.modal-meta {
  list-style: none;
  padding: 0;
  margin: 0 0 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.modal-meta li {
  font-size: 0.8rem;
  color: var(--text-secondary, #4a4a5a);
  background: var(--gray-100, #f0f0f0);
  padding: 4px 10px;
  border-radius: 999px;
}

.modal-meta li i {
  margin-right: 4px;
  color: var(--teal, #2B8A9E);
}

.modal-descripcion {
  color: var(--text-secondary, #4a4a5a);
  line-height: 1.7;
  font-size: 0.95rem;
  margin-bottom: 24px;
}

.modal-descripcion p {
  margin: 0 0 12px;
}

.modal-descripcion p:last-child { margin-bottom: 0; }

.modal-tiendas-wrapper h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted, #6c757d);
  margin: 0 0 12px;
  font-weight: 600;
}

.modal-tiendas {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.modal-tienda-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background: var(--text-primary, #1a1a1a);
  color: #fff !important;
  text-decoration: none !important;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.modal-tienda-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 14px rgba(0, 0, 0, 0.18);
  filter: brightness(1.1);
}

.modal-tienda-btn:focus-visible {
  outline: 3px solid rgba(43, 138, 158, 0.5);
  outline-offset: 2px;
}

.modal-tienda-btn i.brand-icon { font-size: 1.1rem; }

/* Bloquear scroll del body cuando el modal está abierto */
body.catalogo-modal-open {
  overflow: hidden;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .catalogo-carrusel { scroll-behavior: auto; }
  .libro-card,
  .libro-card-portada img,
  .catalogo-modal,
  .catalogo-modal-content,
  .catalogo-modal-close,
  .modal-tienda-btn { transition: none; }
}