.portfolio-section {
  background: #f5f5f5;
  padding: 100px 40px;
}

.portfolio-section h2 {
  margin-bottom: 20px;
}

.portfolio-grid {
  margin-top: 40px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 30px;
  width: 100%;
  max-width: 1100px;
}

.portfolio-grid .item {
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.06);
  padding: 20px;
  transition: transform 0.3s ease;
}

.portfolio-grid .item:hover {
  transform: translateY(-6px);
}