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

header {
    background: #003366;
    color: white;
    padding: 20px;
    text-align: center;
}

.product {
    background: white;
    margin: 20px;
    padding: 20px;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.product img {
    max-width: 100%;
    height: auto;
}

.price {
    font-size: 24px;
    color: #003366;
    font-weight: bold;
}

button {
    background: #25D366;
    color: white;
    border: none;
    padding: 10px 20px;
    font-size: 16px;
    border-radius: 5px;
    cursor: pointer;
    margin-top: 10px;
}

footer {
    text-align: center;
    padding: 10px;
    background: #003366;
    color: white;
}