/* ========================================================
   SECCIÓN: ÁREAS DE ESPECIALIZACIÓN (NUESTRA EXPERIENCIA)
   ======================================================== */

.expertise-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.75rem;
  margin-top: 2rem;
}

.expertise-card {
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 2rem;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.expertise-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background-color: transparent;
  transition: background-color var(--transition-fast);
}

.expertise-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
  border-color: #CBD5E1;
}

.expertise-card:hover::before {
  background-color: var(--color-primary);
}

/* Tarjeta Destacada con Acento Naranja */
.expertise-card--accent:hover::before {
  background-color: var(--color-accent);
}

.expertise-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.expertise-card .icon-box {
  margin-bottom: 0;
}

.expertise-badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  background-color: var(--color-bg-subtle);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
}

.expertise-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-text-heading);
  letter-spacing: -0.01em;
  margin-bottom: 0.75rem;
}

.expertise-card p {
  font-size: 0.93rem;
  color: var(--color-text-body);
  line-height: 1.6;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.expertise-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
}

.expertise-tag {
  font-size: 0.75rem;
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--color-text-muted);
  background-color: var(--color-bg-subtle);
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
}

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