/* ============================================================
   COLECCION.CSS
   Parte 1: Página principal del catálogo (catalogo.html)
   Parte 2: Páginas de detalle de colección (pages/coleccion/*.html)
   ============================================================ */

/* ============================================================
   PARTE 1 — CATÁLOGO PRINCIPAL
   ============================================================ */

/* Hero con foto de fondo */
.catalog-hero {
  position: relative;
  min-height: 460px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}

.catalog-hero__bg {
  position: absolute;
  inset: 0;
  background-image: url('../../../images/Portada.png');
  background-size: cover;
  background-position: center 25%;
  transition: transform var(--transition-slow);
  z-index: 0;
}

.catalog-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(90deg, var(--color-tech-grid) 1px, transparent 1px),
    linear-gradient(180deg, var(--color-tech-grid) 1px, transparent 1px);
  background-size: 44px 44px;
  opacity: 0.55;
}

.catalog-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 2;
  background: linear-gradient(
    to top,
    rgba(10, 28, 18, 0.92) 0%,
    rgba(10, 28, 18, 0.60) 50%,
    rgba(10, 28, 18, 0.30) 100%
  );
}

.catalog-hero__inner {
  position: relative;
  z-index: 3;
  width: 100%;
  padding-block: var(--space-16) var(--space-14);
}

.catalog-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-accent-lime);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  margin-bottom: var(--space-4);
}

.catalog-hero h1 {
  color: #fff;
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.1;
  margin-bottom: var(--space-5);
  max-width: 680px;
}

.catalog-hero h1 em {
  font-style: italic;
  color: var(--color-accent-lime);
}

.catalog-hero__tagline {
  font-size: var(--text-lg);
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: var(--space-8);
  max-width: 520px;
  line-height: 1.7;
}

.catalog-hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.catalog-hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: rgba(255, 255, 255, 0.85);
  background: rgba(255, 255, 255, 0.08);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
}

.catalog-hero__badge--highlight {
  background: var(--color-accent-lime);
  color: var(--color-text-dark);
  border-color: transparent;
}

/* ============================
   GUÍA DE ELECCIÓN
   ============================ */
.catalog-advisor {
  padding-block: var(--space-14);
  background:
    linear-gradient(90deg, transparent 0, transparent calc(100% - 1px), var(--color-paper-texture) calc(100% - 1px)),
    linear-gradient(180deg, transparent 0, transparent calc(100% - 1px), var(--color-paper-texture) calc(100% - 1px)),
    var(--color-surface);
  background-size: 38px 38px, 38px 38px, auto;
  border-bottom: 1px solid var(--color-border);
}

.catalog-advisor__intro {
  max-width: 760px;
  margin-bottom: var(--space-8);
}

.catalog-advisor__intro h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  margin-bottom: var(--space-4);
}

.catalog-advisor__intro p:last-child {
  font-size: var(--text-lg);
  color: var(--color-text);
  line-height: 1.7;
}

.advisor-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

.advisor-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  padding: var(--space-6);
  min-height: 250px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.advisor-item::after {
  content: '';
  position: absolute;
  right: var(--space-5);
  top: var(--space-5);
  width: 72px;
  height: 72px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-paper-rule);
  opacity: 0.55;
  pointer-events: none;
}

.advisor-item > i {
  width: 36px;
  height: 36px;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.advisor-item h3 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-3);
}

.advisor-item p {
  color: var(--color-text);
  line-height: 1.65;
}

.advisor-item__link {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  color: var(--color-primary);
  font-size: var(--text-sm);
  font-weight: 800;
  text-decoration: none;
}

.advisor-item__link:hover {
  color: var(--color-primary-hover);
  text-decoration: underline;
  text-underline-offset: 4px;
}

@media (min-width: 768px) {
  .advisor-grid {
    grid-template-columns: repeat(6, 1fr);
  }

  .advisor-item {
    grid-column: span 3;
  }

  .advisor-item--wide {
    grid-column: span 6;
    min-height: 220px;
  }
}

@media (min-width: 1024px) {
  .advisor-item {
    grid-column: span 2;
  }

  .advisor-item--wide {
    grid-column: span 2;
  }
}

/* ============================
   RUTA LECTORA — TILES PRINCIPALES
   ============================ */
.ruta-section {
  padding-block: var(--space-16);
  background: var(--color-bg-page);
}

.ruta-section__intro {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-6);
  margin-bottom: var(--space-10);
  flex-wrap: wrap;
}

.ruta-section__label {
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.ruta-section__title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--color-text-dark);
}

.ruta-section__hint {
  font-size: var(--text-sm);
  color: var(--color-text);
  white-space: nowrap;
}

/* Grid de niveles */
.niveles-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

/* Tile individual */
.nivel-tile {
  position: relative;
  border-radius: 0;
  overflow: hidden;
  min-height: 380px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  text-decoration: none;
  transition: background-color var(--transition-base), border-color var(--transition-base);
  cursor: pointer;
  box-shadow: none;
  border: 1px solid rgba(255, 255, 255, 0.1);
  isolation: isolate;
}

.nivel-tile::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    linear-gradient(180deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    linear-gradient(180deg, transparent 0%, rgba(4, 22, 16, 0.26) 100%);
  background-size: 42px 42px, 42px 42px, auto;
  opacity: 0.58;
  pointer-events: none;
}

.nivel-tile:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-2xl);
}

.nivel-tile::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    linear-gradient(120deg, transparent 0%, rgba(255, 255, 255, 0.12) 48%, transparent 72%);
  opacity: 0;
  transition: opacity var(--transition-slow);
  pointer-events: none;
}

.nivel-tile:hover::after {
  opacity: 1;
}

.nivel-tile:hover .nivel-tile__num {
  transform: scale(1.05) translateX(8px);
  opacity: 0.12;
}

.nivel-tile:hover .nivel-tile__cta {
  gap: var(--space-3);
}

/* Colores por nivel */
.nivel-tile--basica      { background: linear-gradient(145deg, #C85A12 0%, #F2A11E 100%); }
.nivel-tile--superior    { background: linear-gradient(145deg, #2477A5 0%, #3A9BD5 100%); }
.nivel-tile--bachillerato { background: linear-gradient(145deg, #0E4D3A 0%, var(--color-primary) 100%); }

/* Número decorativo de fondo */
.nivel-tile__num {
  position: absolute;
  top: -20px;
  right: -10px;
  font-family: var(--font-display);
  font-size: clamp(140px, 20vw, 220px);
  font-weight: 900;
  color: #fff;
  opacity: 0.07;
  line-height: 1;
  pointer-events: none;
  user-select: none;
  transition: transform var(--transition-slow), opacity var(--transition-slow);
}

/* Contenido del tile */
.nivel-tile__body {
  position: relative;
  z-index: 1;
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 100%;
}

.nivel-tile__eyebrow {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.65);
  margin-bottom: var(--space-3);
  min-height: 1.2em;
}

.nivel-tile__title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.1;
  margin-bottom: var(--space-4);
  min-height: 2.2em;
}

.nivel-tile__desc {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.7;
  max-width: 380px;
  margin-bottom: var(--space-6);
  min-height: 6.8em;
}

.nivel-tile__stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
  min-height: 2.7em;
}

.nivel-tile__stat {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 700;
  color: rgba(255, 255, 255, 0.7);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}

.nivel-tile__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 700;
  color: #fff;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.3);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
}

.nivel-tile:hover .nivel-tile__cta {
  background: rgba(255, 255, 255, 0.25);
  border-color: rgba(255, 255, 255, 0.5);
}

@media (min-width: 768px) {
  .niveles-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .nivel-tile--bachillerato {
    grid-column: span 2;
    min-height: 380px;
  }
}

@media (min-width: 1024px) {
  .niveles-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .nivel-tile {
    min-height: 460px;
  }

  .nivel-tile--bachillerato {
    grid-column: span 1;
    min-height: 460px;
  }

  .nivel-tile--bachillerato .nivel-tile__body {
    display: flex;
    flex-direction: column;
  }

  .nivel-tile--bachillerato .nivel-tile__desc {
    margin-bottom: var(--space-6);
  }
}

@media (max-width: 640px) {
  .nivel-tile__title,
  .nivel-tile__desc,
  .nivel-tile__stats {
    min-height: 0;
  }
}

/* ============================
   COLECCIONES COMPLEMENTARIAS
   ============================ */
.complementarias-section {
  padding-bottom: var(--space-16);
  background:
    linear-gradient(90deg, transparent 0, transparent calc(100% - 1px), var(--color-paper-texture) calc(100% - 1px)),
    linear-gradient(180deg, transparent 0, transparent calc(100% - 1px), var(--color-paper-texture) calc(100% - 1px)),
    var(--color-bg-page);
  background-size: 38px 38px, 38px 38px, auto;
}

.complementarias-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

.complementaria-tile {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--space-6);
  padding: var(--space-7) var(--space-8);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  text-decoration: none;
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  box-shadow: var(--shadow-card);
}

.complementaria-tile:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

/* Eliminamos barra lateral genérica */
.complementaria-tile::before {
  display: none;
}

/* Número decorativo de fondo */
.complementaria-tile__bg-num {
  position: absolute;
  right: var(--space-6);
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-display);
  font-size: 7rem;
  font-weight: 900;
  line-height: 1;
  opacity: 0.04;
  color: var(--color-text-dark);
  user-select: none;
  pointer-events: none;
}

.complementaria-tile__icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-right: var(--space-4);
  color: var(--color-text-dark);
}

.complementaria-tile--ortografia .complementaria-tile__icon { background: transparent; }
.complementaria-tile--atencion   .complementaria-tile__icon { background: transparent; }

.complementaria-tile__content {
  flex: 1;
  min-width: 0;
}

.complementaria-tile__level {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-text);
  margin-bottom: var(--space-1);
}

.complementaria-tile__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text-dark);
  margin-bottom: var(--space-2);
}

.complementaria-tile__desc {
  font-size: var(--text-sm);
  color: var(--color-text);
  line-height: 1.6;
}

.complementaria-tile__arrow {
  flex-shrink: 0;
  color: var(--color-text);
  transition: transform var(--transition-base), color var(--transition-base);
}

.complementaria-tile:hover .complementaria-tile__arrow {
  transform: translateX(6px);
  color: var(--color-primary);
}

@media (min-width: 768px) {
  .complementarias-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ============================
   CTA FINAL DEL CATÁLOGO
   ============================ */
.catalog-cta {
  padding-block: var(--space-16);
  background: var(--color-bg-soft);
  border-top: 1px solid var(--color-border);
}

@media (prefers-reduced-motion: reduce) {
  .catalog-hero__bg,
  .nivel-tile,
  .nivel-tile__num,
  .nivel-tile__cta,
  .complementaria-tile,
  .complementaria-tile__arrow {
    transition: none;
  }

  .nivel-tile:hover,
  .complementaria-tile:hover,
  .complementaria-tile:hover .complementaria-tile__arrow {
    transform: none;
  }

  .nivel-tile::after {
    display: none;
  }
}


/* ============================================================
   PARTE 2 — PÁGINAS DE DETALLE DE COLECCIÓN
   ============================================================ */
.coleccion-hero {
  padding-block: var(--space-12) var(--space-14);
  position: relative;
  overflow: hidden;
}

.coleccion-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, transparent 0, transparent calc(100% - 1px), var(--color-paper-texture) calc(100% - 1px)),
    linear-gradient(180deg, transparent 0, transparent calc(100% - 1px), var(--color-paper-texture) calc(100% - 1px));
  background-size: 38px 38px;
  pointer-events: none;
}

.coleccion-hero .container {
  position: relative;
  z-index: 1;
}

/* Hero con foto (Neuro-Ortografía) */
.ortografia-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
  align-items: center;
}

.ortografia-hero__photo-wrap {
  display: flex;
  justify-content: center;
}

.ortografia-hero__photo {
  width: 100%;
  max-width: 360px;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  object-fit: cover;
  display: block;
}

@media (min-width: 768px) {
  .ortografia-hero__grid {
    grid-template-columns: 1fr 1fr;
  }

  .ortografia-hero__photo {
    max-width: 100%;
  }
}

.coleccion-hero--basica      { background: linear-gradient(135deg, #FFFBEB 0%, #FEF3C7 100%); }
.coleccion-hero--superior    { background: linear-gradient(135deg, #EFF6FF 0%, #E0E7FF 100%); }
.coleccion-hero--bachillerato { background: linear-gradient(135deg, var(--color-bg-soft) 0%, #d1fae5 100%); }
.coleccion-hero--ortografia  { background: linear-gradient(135deg, #F5F3FF 0%, #EDE9FE 100%); }
.coleccion-hero--atencion    { background: linear-gradient(135deg, #FFF7ED 0%, #FEE2E2 100%); }

[data-theme="dark"] .coleccion-hero--basica,
[data-theme="dark"] .coleccion-hero--superior,
[data-theme="dark"] .coleccion-hero--bachillerato,
[data-theme="dark"] .coleccion-hero--ortografia,
[data-theme="dark"] .coleccion-hero--atencion {
  background: var(--color-bg-soft);
}

.coleccion-hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 700;
  margin-bottom: var(--space-4);
  border: 1.5px solid currentColor;
}

.coleccion-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.coleccion-stat {
  display: flex;
  flex-direction: column;
  flex: 1 1 132px;
  min-width: 132px;
  padding: var(--space-4) var(--space-5);
  border: 1px solid var(--color-border-strong);
  border-radius: 0;
  background: var(--color-surface);
  box-shadow: none;
}

.coleccion-stat__num {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 900;
  line-height: 1;
}

.coleccion-stat__label {
  font-size: var(--text-sm);
  color: var(--color-text);
  margin-top: var(--space-1);
}

.nivel-section {
  margin-bottom: var(--space-12);
  padding: var(--space-6);
  border: 1px solid var(--color-border-strong);
  border-radius: 0;
  background: var(--color-surface);
}

.nivel-section:last-child {
  margin-bottom: 0;
}

.nivel-header {
  display: flex;
  align-items: baseline;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border-strong);
}

.nivel-header__number {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  font-weight: 800;
  color: var(--color-text-dark);
  line-height: 1;
  min-width: 60px;
}

.nivel-header h2 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  color: var(--color-text-dark);
  margin: 0;
}

.nivel-header__count {
  margin-left: auto;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
}

.libros-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: var(--space-5);
}

.libro-card {
  background-color: var(--color-surface);
  border-radius: 0;
  border: 1px solid var(--color-border-strong);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color var(--transition-base);
  text-decoration: none;
}

.libro-card:hover {
  border-color: var(--color-text-dark);
}

.libro-card__cover {
  aspect-ratio: 3 / 4;
  background: var(--color-bg-soft);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  position: relative;
  overflow: hidden;
}

.libro-card__cover::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 0%, var(--color-surface-overlay) 46%, transparent 72%);
  opacity: 0;
  transition: opacity var(--transition-slow);
  pointer-events: none;
}

.libro-card:hover .libro-card__cover::after {
  opacity: 1;
}

.libro-card__cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.libro-card__new {
  position: absolute;
  top: var(--space-2);
  right: var(--space-2);
}

.libro-card__info {
  padding: var(--space-3) var(--space-4) var(--space-4);
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.libro-card__title {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-text-dark);
  line-height: 1.3;
}

.libro-card__author {
  font-size: var(--text-xs);
  color: var(--color-text);
  line-height: 1.4;
}

.motivos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-4);
}

.motivo-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  padding: var(--space-5);
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.motivo-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.motivo-card__icon {
  width: 58px;
  height: 78px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-bg-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  flex-shrink: 0;
  overflow: hidden;
}

.motivo-card__icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  mix-blend-mode: multiply;
  transform: scale(1.15);
  transition: transform var(--transition-slow);
}

.motivo-card:hover .motivo-card__icon img {
  transform: scale(1.18);
}

.motivo-card__title {
  font-weight: 700;
  font-size: var(--text-sm);
  color: var(--color-text-dark);
  margin-bottom: var(--space-1);
}

.motivo-card__authors {
  font-size: var(--text-xs);
  color: var(--color-text);
  line-height: 1.6;
}

.libro-destacado {
  background: var(--color-text-dark);
  border: 1px solid var(--color-border-strong);
  padding: var(--space-8);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  align-items: center;
  margin-bottom: var(--space-10);
  box-shadow: var(--shadow-lg);
}

.libro-destacado h3 {
  color: #fff;
  font-size: var(--text-2xl);
}

.libro-destacado p {
  color: rgba(255,255,255,0.85);
}

.libro-destacado__badge {
  display: inline-block;
  background: var(--color-accent-lime);
  color: var(--color-text-dark);
  font-size: var(--text-xs);
  font-weight: 700;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-3);
}

.collection-cta-panel {
  margin-top: var(--space-12);
  padding: var(--space-10) var(--space-8);
  border: 1px solid var(--color-border-strong);
  border-radius: 0;
  background: var(--color-surface);
  text-align: center;
}

.collection-cta-panel h2 {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-3);
}

.collection-cta-panel p {
  color: var(--color-text);
  margin-bottom: var(--space-6);
}

.collection-cta-panel__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  justify-content: center;
}

@media (min-width: 768px) {
  .libro-destacado {
    grid-template-columns: auto 1fr;
  }
}

@media (max-width: 640px) {
  .nivel-section {
    padding: var(--space-4);
  }

  .nivel-header {
    flex-wrap: wrap;
    align-items: flex-start;
  }

  .nivel-header__count {
    width: 100%;
    margin-left: 0;
  }

  .libros-grid {
    grid-template-columns: repeat(auto-fill, minmax(148px, 1fr));
  }

  .motivos-grid {
    grid-template-columns: 1fr;
  }

  .collection-cta-panel {
    padding: var(--space-6);
  }
}

@media (prefers-reduced-motion: reduce) {
  .libro-card,
  .libro-card__cover::after,
  .motivo-card {
    transition: none;
  }

  .libro-card:hover,
  .motivo-card:hover {
    transform: none;
  }

  .libro-card__cover::after {
    display: none;
  }
}