body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background: #f8f9fa;
    color: #333;
}

header {
    background: #004080;
    color: white;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

h1 {
    margin: 0;
}

#cart {
    font-size: 1.1em;
}

.container {
    display: flex;
}

.sidebar {
    width: 200px;
    background-color: #003366;
    padding: 20px 0;
    min-height: 100vh;
}

.sidebar ul {
    list-style-type: none;
    padding: 0;
}

.sidebar li {
    margin: 10px 0;
}

.sidebar a {
    color: white;
    text-decoration: none;
    padding: 10px 20px;
    display: block;
}

.sidebar a:hover {
    background-color: #0059b3;
}

.content {
    flex-grow: 1;
    padding: 30px;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.product {
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    padding: 15px;
    text-align: center;
}

.product img {
    width: 100%;
    max-width: 200px;
    border-radius: 4px;
}

button {
    background-color: #007bff;
    color: white;
    padding: 10px 15px;
    margin-top: 10px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

button:hover {
    background-color: #0056b3;
}

footer {
    background: #222;
    color: #aaa;
    text-align: center;
    padding: 15px;
}

.logo {
    height: 70px;
    width: auto;
    margin-right: 15px;
}