.footer {
  display: flex;
  flex-direction: row-reverse;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid #EBEEEF;
  background: #fff;
  padding: 40px;
}
.footer-copyright {
  font-family: "Open Sans";
  font-size: 12px;
  color: #8c8c8c;
}
.footer-official-btn a {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  font-size: 14px;
  font-weight: 700;
  color: #171717;
  border-radius: 3px;
  background: #f5f5f5;
  padding: 10px 24px;
  transition: 0.3s;
}
.footer-official-btn a:after {
   content: "\e920";
  display: inline-block;
  font-weight: normal;
  line-height: 1;
  margin: 0 0 0 10px;
  font-size: 18px;
  font-family: "icomoon";
  transition: 0.3s;
}

@media screen and (min-width: 768px) {
  .footer-official-btn a:hover {
    color: #fff;
    background: #171717;
  }
  .footer-official-btn a:hover:after {
    /*filter: brightness(0) invert(1);*/
    color: #fff;
  }
}

@media screen and (max-width: 767px) {
  .footer {
  flex-direction: column;
  gap: 16px;
  padding: 24px 16px;
}
}