@media only screen and (max-width: 600px){
.popup {
display: none;
position: fixed;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
background: #fff;
padding: 20px;
box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.5);
z-index: 9999;
width: 100%; max-width: 100%; }    
}
@media only screen and (min-width: 601px){
.popup {
display: none;
position: fixed;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
background: #fff;
padding: 20px;
box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.5);
z-index: 9999;
width: 50%;
}    
}
.overlay {
display: none !important;
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
background: rgba(0, 0, 0, 0.5);
z-index: 999;
}
.popup img {
max-width: 100%;
height: auto;
}
.fechar-popup {
position: absolute;
top: 10px;
right: 10px;
cursor: pointer;
}