footer {
  text-align: center;
  background-color: blue;
  color: white;
  padding: 20px;
  clear: both;
  margin-top: 10px;
  position: relative; /* Đảm bảo footer có vị trí tương đối để sử dụng z-index */
  z-index: 999; /* Đặt z-index cao để footer hiển thị trên các phần tử khác */
}
footer .content{
max-width: 1250px;
margin: auto;
padding: 30px 40px 40px 40px;
}
footer .content .top{
display: flex;
align-items: center;
justify-content: space-between;
margin-bottom: 50px;
}
.content .top .logo-details{
color: #fff;
font-size: 30px;
}
.content .top .media-icons{
display: flex;
}
.content .top .media-icons a{
height: 40px;
width: 40px;
margin: 0 8px;
border-radius: 50%;
text-align: center;
line-height: 40px;
color: #fff;
font-size: 17px;
text-decoration: none;
transition: all 0.4s ease;
}
.top .media-icons a:nth-child(1){
background: #296bef;
}
.top .media-icons a:nth-child(1):hover{
color: #4267B2;
background: #fff;
}
.top .media-icons a:nth-child(2){
background: #1DA1F2;
}
.top .media-icons a:nth-child(2):hover{
color: #1DA1F2;
background: #fff;
}
.top .media-icons a:nth-child(3){
background: #E1306C;
}
.top .media-icons a:nth-child(3):hover{
color: #E1306C;
background: #fff;
}
.top .media-icons a:nth-child(4){
background: #0077B5;
}
.top .media-icons a:nth-child(4):hover{
color: #0077B5;
background: #fff;
}
.top .media-icons a:nth-child(5){
background: #FF0000;
}
.top .media-icons a:nth-child(5):hover{
color: #FF0000;
background: #fff;
}
footer .content .link-boxes{
width: 100%;
display: flex;
justify-content: space-between;
}
footer .content .link-boxes .box{
width: calc(100% / 5 - 10px);
}
.content .link-boxes .box .link_name{
color: #fff;
font-size: 18px;
font-weight: 400;
margin-bottom: 10px;
position: relative;
}
/* .link-boxes .box .link_name::before{
content: '';
position: absolute;
left: 0;
bottom: -2px;
height: 2px;
width: 35px;
background: #fff;
} */
.content .link-boxes .box li{
margin: 6px 0;
list-style: none;
}
.content .link-boxes .box li a{
color: #fff;
font-size: 14px;
font-weight: 400;
text-decoration: none;
opacity: 0.8;
transition: all 0.4s ease
}
.content .link-boxes .box li a:hover{
opacity: 1;
text-decoration: underline;
}
.content .link-boxes .input-box{
margin-right: 55px;
}
.link-boxes .input-box input{
height: 40px;
width: calc(100% + 55px);
outline: none;
border: 2px solid #AFAFB6;
background: #140B5C;
border-radius: 4px;
padding: 0 15px;
font-size: 15px;
color: #fff;
margin-top: 5px;
}
.link-boxes .input-box input::placeholder{
color: #AFAFB6;
font-size: 16px;
}
.link-boxes .input-box input[type="button"]{
background: #fff;
color: #140B5C;
border: none;
font-size: 18px;
font-weight: 500;
margin: 4px 0;
opacity: 0.8;
cursor: pointer;
transition: all 0.4s ease;
}
.input-box input[type="button"]:hover{
opacity: 1;
}
footer .bottom-details{
width: 100%;
background: #0F0844;
}
footer .bottom-details .bottom_text{
max-width: 1250px;
margin: auto;
padding: 20px 40px;
display: flex;
justify-content: space-between;
}
.bottom-details .bottom_text span,
.bottom-details .bottom_text a{
font-size: 14px;
font-weight: 300;
color: #fff;
opacity: 0.8;
text-decoration: none;
}
.bottom-details .bottom_text a:hover{
opacity: 1;
text-decoration: underline;
}
.bottom-details .bottom_text a{
margin-right: 10px;
}
@media (max-width: 900px) {
footer .content .link-boxes{
  flex-wrap: wrap;
}
footer .content .link-boxes .input-box{
  width: 40%;
  margin-top: 10px;
}
}
@media (max-width: 700px){
footer{
  position: relative;
}
.content .top .logo-details{
  font-size: 26px;
}
.content .top .media-icons a{
  height: 35px;
  width: 35px;
  font-size: 14px;
  line-height: 35px;
}
footer .content .link-boxes .box{
  width: calc(100% / 3 - 10px);
}
footer .content .link-boxes .input-box{
  width: 60%;
}
.bottom-details .bottom_text span,
.bottom-details .bottom_text a{
  font-size: 12px;
}
}
@media (max-width: 520px){
footer::before{
  top: 145px;
}
footer .content .top{
  flex-direction: column;
}
.content .top .media-icons{
  margin-top: 16px;
}
footer .content .link-boxes .box{
  width: calc(100% / 2 - 10px);
}
footer .content .link-boxes .input-box{
  width: 100%;
}
}

/*update footer mobi*/
@media (max-width: 900px) {
  footer .content .link-boxes .box {
      flex: 1 1 calc(33.33% - 20px); /* Chia 3 cột trên màn hình nhỏ hơn */
  }
}
@media (max-width: 700px) {
  footer .content .link-boxes .box {
      flex: 1 1 calc(50% - 20px); /* Chia 2 cột trên màn hình cực nhỏ */
  }
}

@media (max-width: 520px) {
  footer .content .top .logo-details {
      font-size: 20px; /* Giảm kích thước font cho logo-details */
  }
  footer .content .top .media-icons a {
      height: 30px;
      width: 30px;
      font-size: 12px; /* Giảm kích thước icon mạng xã hội */
      line-height: 30px;
  }
  footer .content .link-boxes {
      flex-direction: column;
      align-items: center;
  }
  footer .content .link-boxes .box {
      flex: 1 1 100%; /* Box chiếm full width trên màn hình cực nhỏ */
      max-width: 100%;
  }
}