1)
@media (max-width: 480px){
.header .shopping-cart-widget .cart-summ .amount {
font-size: 0px !important;
}
.shopping-cart-widget .cart-summ > .cart-bag:before {
content: "\f291";
font-family: FontAwesome;
font-size: 16px;
color: #0000009c;
}
.side-area-icon i:before, .menu-icon i:before {
font-size: 15px;
background-color: #635c5b;
padding: 3px 10px;
}
.header .menu-icon {
left: 35px !important;
top: unset;
bottom: 38px;
}
.header .shopping-cart-widget{
bottom: 0;
top: unset !important;
margin-top: 0px !important;
}
}
2) To change color of “+” icons you need edit the file wp-content/themes/legenda/images/small-plus.png as they are loaded from it.
Regards