body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
header {
    background-color: #0078D7;
    color: white;
    padding: 10px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0px;
}
header h1 {
    margin: 0;
}
nav a {
    color: white;
    text-decoration: none;
    margin-left: 20px;
    font-weight: bold;
}
.hero {
    background-color: #f4f4f4;
    text-align: center;
    padding: 50px 20px;
}
.hero h2 {
    margin: 0;
    color: #333;
}
.categories, .featured {
    padding: 20px;
}
.categories h3, .featured h3 {
    margin-bottom: 20px;
    color: #0078D7;
}
.category-list, .product-list {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}
.category, .product {
    flex: 1 1 calc(33.33% - 40px);
    border: 1px solid #ddd;
    border-radius: 5px;
    padding: 20px;
    text-align: center;
    background-color: white;
}
.category:hover, .product:hover {
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}
.footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 10px 0;
}