body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background: #f5f5f5;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #222;
    color: white;
    padding: 15px 30px;
}

.logo h1 {
    margin: 0;
    font-size: 24px;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 15px;
    margin: 0;
    padding: 0;
}

nav ul li {
    display: inline;
}

nav ul li a {
    color: white;
    text-decoration: none;
    font-weight: bold;
}

main {
    max-width: 1200px;
    margin: 20px auto;
    padding: 20px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

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

.product-card {
    background: white;
    padding: 15px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.product-card img {
    max-width: 100%;
    border-radius: 8px;
}

.product-card h3 {
    font-size: 18px;
    margin: 10px 0;
}

.price {
    font-weight: bold;
    color: #e74c3c;
}

button {
    background: #27ae60;
    color: white;
    border: none;
    padding: 10px 15px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
}

button:hover {
    background: #219150;
}

footer {
    text-align: center;
    padding: 10px;
    background: #222;
    color: white;
    margin-top: 20px;
}