/* ============================================
   RECURSOS — Biblioteca filtrable (Apple x Netflix)
   ============================================ */

/* --- Header de biblioteca --- */
.lib-header {
  padding-block: var(--space-2xl) var(--space-xl);
  text-align: center;
  background: linear-gradient(180deg, var(--color-acento-claro) 0%, var(--color-blanco) 100%);
}

.lib-header h1 {
  max-width: 700px;
  margin-inline: auto;
  margin-bottom: var(--space-sm);
}

.lib-header__subtitle {
  color: var(--color-texto-claro);
  max-width: 560px;
  margin-inline: auto;
  margin-bottom: var(--space-xl);
  font-size: 1.05rem;
}

/* --- Buscador estilo Apple (grande, minimalista, pill) --- */
.lib-search {
  position: relative;
  max-width: 480px;
  margin-inline: auto;
  margin-bottom: var(--space-lg);
}

.lib-search__icon {
  position: absolute;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  color: var(--color-texto-claro);
  pointer-events: none;
}

.lib-search__input {
  width: 100%;
  padding: 16px 20px 16px 52px;
  border-radius: 999px;
  border: 1px solid var(--color-borde);
  background-color: var(--color-blanco);
  font-family: var(--font-primary);
  font-size: 1rem;
  color: var(--color-texto);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-base), border-color var(--transition-base);
}

.lib-search__input:focus {
  outline: none;
  border-color: var(--color-secundario);
  box-shadow: 0 0 0 4px rgba(25, 118, 210, 0.12);
}

.lib-search__input::placeholder {
  color: var(--color-texto-claro);
}

/* --- Filtros tipo pill (Netflix) --- */
.lib-filters {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.lib-filter {
  font-family: var(--font-primary);
  font-weight: var(--fw-medium);
  font-size: 0.9rem;
  color: var(--color-texto-claro);
  background-color: var(--color-blanco);
  border: 1px solid var(--color-borde);
  border-radius: 999px;
  padding: 8px 18px;
  cursor: pointer;
  transition: all var(--transition-base);
}

.lib-filter:hover {
  border-color: var(--color-secundario);
  color: var(--color-secundario);
}

.lib-filter.is-active {
  background-color: var(--color-primario);
  border-color: var(--color-primario);
  color: var(--color-blanco);
}

/* --- Recurso insignia (E-book destacado) --- */
.featured-resource {
  padding-block: var(--space-xl) var(--space-lg);
}

.featured-resource__card {
  background: linear-gradient(135deg, var(--color-primario), var(--color-secundario));
  border-radius: var(--radius-lg);
  padding: var(--space-xl) var(--space-lg);
  text-align: center;
  color: var(--color-blanco);
  max-width: 720px;
  margin-inline: auto;
  box-shadow: var(--shadow-md);
}

.featured-resource__label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  background-color: rgba(255, 255, 255, 0.18);
  padding: 4px 14px;
  border-radius: 999px;
  margin-bottom: var(--space-sm);
}

.featured-resource__card h2 {
  color: var(--color-blanco);
  margin-bottom: var(--space-sm);
}

.featured-resource__card p {
  color: rgba(255, 255, 255, 0.85);
  max-width: 480px;
  margin-inline: auto;
  margin-bottom: var(--space-md);
}

.featured-resource__card .btn-primary {
  background-color: var(--color-blanco);
  color: var(--color-primario);
}

.featured-resource__card .btn-primary:hover {
  background-color: var(--color-acento-claro);
}

/* --- Biblioteca por fases --- */
.library {
  padding-block: var(--space-xl) var(--space-2xl);
}

.library__phase {
  margin-bottom: var(--space-2xl);
}

.library__phase-header {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.library__phase-number {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--color-acento-claro);
  color: var(--color-primario);
  font-family: var(--font-primary);
  font-weight: var(--fw-bold);
  display: flex;
  align-items: center;
  justify-content: center;
}

.library__phase-header h2 {
  font-size: 1.4rem;
  margin-bottom: 2px;
}

.library__phase-header p {
  color: var(--color-texto-claro);
  font-size: 0.95rem;
}

.library__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.library__card {
  background-color: var(--color-blanco);
  border: 1px solid var(--color-borde);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.library__card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.library__card-icon {
  width: 40px;
  height: 40px;
  color: var(--color-primario);
  margin-bottom: var(--space-sm);
}

.library__card-icon svg {
  width: 100%;
  height: 100%;
}

.library__card-tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: var(--fw-semibold);
  color: var(--color-secundario);
  background-color: var(--color-acento-claro);
  padding: 3px 10px;
  border-radius: 999px;
  margin-bottom: var(--space-xs);
}

.library__card h3 {
  font-size: 1.05rem;
  margin-bottom: var(--space-xs);
}

.library__card p {
  color: var(--color-texto-claro);
  font-size: 0.9rem;
  margin-bottom: var(--space-sm);
}

.library__card-link {
  font-family: var(--font-primary);
  font-weight: var(--fw-semibold);
  font-size: 0.9rem;
  color: var(--color-primario);
}

.library__card-link:hover {
  text-decoration: underline;
}

.library__empty {
  grid-column: 1 / -1;
  padding: var(--space-lg);
  border: 1px dashed var(--color-borde);
  border-radius: var(--radius-md);
  text-align: center;
  color: var(--color-texto-claro);
  font-size: 0.9rem;
}

/* --- Responsive --- */
@media (max-width: 900px) {
  .library__grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .library__grid {
    grid-template-columns: 1fr;
  }

  .lib-filters {
    justify-content: flex-start;
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 4px;
    -webkit-overflow-scrolling: touch;
  }

  .lib-filter {
    flex-shrink: 0;
    white-space: nowrap;
  }
}

/* ============================================
   COMPONENTES COMPARTIDOS (CTA final + Footer)
   ============================================ */

/* --- CTA Final --- */
.final-cta {
  background-color: var(--color-primario);
  padding-block: var(--space-xl);
}

.final-cta__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.final-cta__title {
  color: var(--color-blanco);
  margin-bottom: var(--space-xs);
}

.final-cta__subtitle {
  color: rgba(255, 255, 255, 0.85);
  font-size: 1rem;
}

.final-cta__actions {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  flex-shrink: 0;
}

.final-cta .btn-primary {
  background-color: var(--color-blanco);
  color: var(--color-primario);
}

.final-cta .btn-primary:hover {
  background-color: var(--color-acento-claro);
  box-shadow: none;
}

@media (max-width: 768px) {
  .final-cta__inner {
    flex-direction: column;
    text-align: center;
  }

  .final-cta__actions {
    justify-content: center;
    width: 100%;
  }

  .final-cta__actions .btn {
    flex: 1;
    min-width: 200px;
  }
}

/* --- Footer --- */
.footer {
  background-color: var(--color-texto);
  padding-top: var(--space-xl);
}

.footer__inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--space-lg);
  padding-bottom: var(--space-lg);
}

.footer__logo {
  height: 32px;
  width: auto;
  margin-bottom: var(--space-sm);
  filter: brightness(0) invert(1);
}

.footer__brand p {
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.9rem;
  max-width: 260px;
}

.footer__col h4 {
  color: var(--color-blanco);
  font-size: 0.95rem;
  font-weight: var(--fw-semibold);
  margin-bottom: var(--space-sm);
}

.footer__col ul li {
  margin-bottom: var(--space-xs);
}

.footer__col ul li a,
.footer__col ul li {
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.9rem;
}

.footer__col ul li a:hover {
  color: var(--color-acento);
}

.footer__legal {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px;
  margin-bottom: var(--space-sm);
}

.footer__legal a {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.55);
}

.footer__legal a:hover {
  color: var(--color-acento);
}

.footer__legal-sep {
  color: rgba(255, 255, 255, 0.3);
  font-size: 0.75rem;
}
.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-block: var(--space-md);
  text-align: center;
}

.footer__bottom p {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.8rem;
}

@media (max-width: 768px) {
  .footer__inner {
    grid-template-columns: 1fr 1fr;
  }

  .footer__brand {
    grid-column: 1 / -1;
    margin-bottom: var(--space-md);
  }
}

@media (max-width: 480px) {
  .footer__inner {
    grid-template-columns: 1fr;
  }
}