.nosotros {
  padding: 80px 20px;
  background: #0d0d0d;
  color: #fff;
  text-align: center;
}

.titulo-nosotros {
  font-size: 2.8rem;
  margin-bottom: 20px;
}

.descripcion-nosotros {
  font-size: 1.1rem;
  max-width: 700px;
  margin: 0 auto 40px;
}

.tarjetas-valores {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 30px;
  margin-bottom: 40px;
}

.tarjeta-valor {
  background: #1a1a1a;
  border-radius: 12px;
  padding: 30px 20px;
  width: 250px;
  transition: transform 0.3s, box-shadow 0.3s;
}

.tarjeta-valor:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 25px rgba(0,0,0,0.4);
}

.icono-valor {
  font-size: 2.5rem;
  margin-bottom: 15px;
}

.tarjeta-valor h3 {
  margin-bottom: 10px;
  font-size: 1.4rem;
}

.tarjeta-valor p {
  font-size: 1rem;
  line-height: 1.4;
}

.mision-nosotros, .cta-nosotros {
  font-size: 1.1rem;
  max-width: 700px;
  margin: 0 auto 15px;
}

@media (max-width: 768px) {
  .tarjetas-valores {
    flex-direction: column;
    align-items: center;
  }
}