/* SISTEMA ATOM SECTION */

.sistema-atom {
  text-align: center;
}

/* Section label above title */
.sistema-atom .section-label {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: var(--font-semibold);
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-sm);
}

/* Pilares grid */
.pilares-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.pilar-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-md);
  padding: var(--space-xl) var(--space-lg);
  background: #ffffff;
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 16px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.09);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.pilar-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.12);
}

.pilar-img {
  width: 100px;
  height: 100px;
  object-fit: contain;
  margin-bottom: var(--space-sm);
  transition: transform 0.3s ease;
}

.pilar-item:hover .pilar-img {
  transform: scale(1.08);
}

.pilar-item h3 {
  margin: 0;
  line-height: 1.25;
}

.pilar-description {
  font-size: var(--font-size-base);
  color: var(--color-body);
  line-height: 1.6;
  max-width: 320px;
}

.text-matematicas {
  color: var(--color-primary);
}

.text-lectura {
  color: var(--color-primary);
}

.text-stem {
  color: var(--color-primary);
}

/* Responsive */
@media (max-width: 1024px) {
  .pilares-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
  }

  .pilar-item {
    padding: var(--space-lg) var(--space-md);
  }

  .pilar-img {
    width: 80px;
    height: 80px;
  }

  .pilar-item h3 {
    font-size: var(--font-size-lg);
  }
}

@media (max-width: 768px) {
  .sistema-atom .section-header {
    margin-bottom: var(--space-xl);
  }

  .sistema-atom .section-header h2 {
    font-size: var(--font-size-2xl);
  }

  .sistema-atom .section-header p {
    font-size: var(--font-size-base);
  }

  .pilares-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
    max-width: 420px;
    margin: 0 auto;
  }

  .pilar-item {
    flex-direction: row;
    text-align: left;
    align-items: flex-start;
    gap: var(--space-lg);
    padding: var(--space-lg);
  }

  .pilar-img {
    width: 64px;
    height: 64px;
    flex-shrink: 0;
    margin-bottom: 0;
  }

  .pilar-item h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-sm);
  }

  .pilar-description {
    max-width: none;
    font-size: 0.9375rem;
  }
}

@media (max-width: 480px) {
  .pilares-grid {
    max-width: none;
  }

  .pilar-item {
    flex-direction: column;
    text-align: center;
    align-items: center;
    padding: var(--space-lg) var(--space-md);
  }

  .pilar-img {
    width: 72px;
    height: 72px;
  }
}