static/styles.css

/* Popup */
.popup {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
}

/* Menu */
.menu-item {
    margin-bottom: 20px;
}

/* Cart */
.cart {
    margin-top: 20px;
}