/* ===================== CHALLENGES ===================== */
.da-ecommerce-challenges {
  background: var(--ecom-gray-100);
}

.da-ecommerce-challenges-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 50px;
}

.da-ecommerce-challenge-card {
  background: var(--ecom-white);
  border-radius: var(--ecom-radius-lg);
  padding: 32px 28px;
  box-shadow: var(--ecom-shadow);
  border: 1px solid var(--ecom-gray-300);
  transition: var(--ecom-transition);
  position: relative;
  overflow: hidden;
}

.da-ecommerce-challenge-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--ecom-primary);
  transform: scaleX(0);
  transition: var(--ecom-transition);
  transform-origin: left;
}

.da-ecommerce-challenge-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--ecom-shadow-lg);
  border-color: rgba(97, 206, 112, 0.3);
}

.da-ecommerce-challenge-card:hover::before {
  transform: scaleX(1);
}

.da-ecommerce-challenge-icon {
  width: 52px;
  height: 52px;
  background: rgba(97, 206, 112, 0.1);
  border-radius: var(--ecom-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  transition: var(--ecom-transition);
}

.da-ecommerce-challenge-card:hover .da-ecommerce-challenge-icon {
  background: var(--ecom-primary);
}

.da-ecommerce-challenge-icon i {
  font-size: 1.3rem;
  color: var(--ecom-primary);
  transition: var(--ecom-transition);
}

.da-ecommerce-challenge-card:hover .da-ecommerce-challenge-icon i {
  color: var(--ecom-secondary);
}

.da-ecommerce-challenge-card h3 {
  font-family: var(--ecom-font-sub);
  font-size: 1rem;
  font-weight: 700;
  color: var(--ecom-secondary);
  margin-bottom: 10px;
}

.da-ecommerce-challenge-card p {
  font-family: var(--ecom-font-body);
  font-size: 0.85rem;
  color: var(--ecom-gray-500);
  line-height: 1.65;
  margin-bottom: 14px;
}

.da-ecommerce-challenge-solution {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  background: rgba(97, 206, 112, 0.07);
  border-radius: var(--ecom-radius);
  padding: 12px 14px;
  font-size: 0.82rem;
  color: var(--ecom-primary-dark);
  font-family: var(--ecom-font-sub);
  font-weight: 600;
}

.da-ecommerce-challenge-solution i {
  font-size: 0.9rem;
  margin-top: 2px;
  flex-shrink: 0;
}

@media (max-width: 900px) {
  .da-ecommerce-challenges-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .da-ecommerce-challenges-grid {
    grid-template-columns: 1fr;
  }
}