header.mtop {
    position: relative;
    padding-top: 0;
}
header.mtop::before {
    content: '';
    position: absolute;
    inset: 3%;
    z-index: 0;
    width: 100%;
    height: 100%;
    left: 0;
    top: -1px;
    backdrop-filter: blur(8px);
  }
  

.sidebar button {
    border: none;
    background-color: initial;
}

.btn-close {
    background: transparent url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23386f69'%3e%3cpath d='M.293.293a1 1 0 011.414 0L8 6.586 14.293.293a1 1 0 111.414 1.414L9.414 8l6.293 6.293a1 1 0 01-1.414 1.414L8 9.414l-6.293 6.293a1 1 0 01-1.414-1.414L6.586 8 .293 1.707a1 1 0 010-1.414z'/%3e%3c/svg%3e") center/1em auto no-repeat
    ;
}

.sub-footer img {
    width: 120px;
}

/* RESPONSIVE */
@media screen and (max-width: 768px) {
    .mtop {
        backdrop-filter: initial;
    }
    
}