gap: 20px;
  padding: 20px;
  align-items: flex-start; /* Giữ filter không bị kéo theo chiều cao product */
}

/* Bộ lọc */
.filter-content {
  width: 220px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
  background: #f9f9f9;
  padding: 15px;
  border: 1px solid #ddd;
  border-radius: 8px;
  box-sizing: border-box;
}

.filter-group h3 {
  margin-bottom: 10px;
  font-size: 16px;
  font-weight: 600;
}

.filter-group label {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 6px;
  cursor: pointer;
}

.filter-group input {
  margin: 0;
}

/* Wrapper cho product + phân trang */
.product-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Sản phẩm */
.product {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  align-items: start;
}

/* Card sản phẩm */
.product-card {
  border: 1px solid #ddd;
  border-radius: 8px;
  padding: 15px;
  background-color: #fff;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.product-card-item-img {
  width: 100%;
  height: 180px;
  background-color: #eee;
  border-radius: 6px;
  margin-bottom: 10px;
}

.product-card-item span {
  display: block;
  margin-bottom: 6px;
}

/* Giá và nút */
.product-card-item-price {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 10px;
}

.product-card-item-price .price {
  font-weight: 600;
  color: #d9534f;
}

/* Phân trang */
.pagination {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-top: 10px;
}

.pagination button {
  padding: 6px 12px;
  border: 1px solid #ccc;
  background: #fff;
  cursor: pointer;
  border-radius: 4px;
  transition: background 0.2s ease;
}

.pagination button:hover {
  background: #f0f0f0;
}

.pagination button.active {
  background: #007bff;
  color: #fff;
  border-color: #007bff;
}

/* Tablet */
@media (max-width: 992px) {
  .shop {
    flex-direction: column;
  }

  .filter-content {
    width: 100%;
  }

  .product {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Mobile */
@media (max-width: 576px) {
  .product {
    grid-template-columns: 1fr;
  }
}
# Performance optimization
# Security enhancements
// Code documentation updated
// Code documentation updated
// Feature flag implementation
// Performance optimization implemented
// Configuration settings optimized
// UI/UX improvements added
// UI/UX improvements added
/* Multi-line comment block
// UI/UX improvements added
// Database optimization completed
// Unit tests added for better coverage
// UI/UX improvements added
// Unit tests added for better coverage
// Bug fixes and code refactoring