static/assets/css/style.css

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');
*
{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Roboto', sans-serif;
}
.active-nav {
    text-decoration: underline;
}


#chatBot
{
    width: 50px;
    height: 50px;
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: #1164FE;
    color: white;
    border-radius: 50%;
    text-align: center;
    line-height: 50px;
    cursor: pointer;
    z-index: 1000;
}
#chatBotContent {
    display: none;
    position: fixed;
    bottom: 80px; /* Cách vị trí chatbot icon một khoảng */
    right: 20px;
    width: 400px;
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
    border: 1px solid lightgray;
    z-index: 1000;
    height: 500px;
}

#chatBotContentTop {
    margin-top: 5px;
    color: black;
}
#chatBotContentTop-1
{
    float: left;
    width: 400px;
    height: 40px;
    font-size: 17px;
    border-bottom: 1px solid #ccc;
}
#chatBotmid
{
    float: left;
    width: 400px;
    height: 380px;
    margin-top: 10px;
}

#chatBotContentBottom {
    float: left;
    margin-top: 5px;
    width: 400px;
    height: 60px;
    padding: 10px;

}

#chatBotForm {
    display: flex;
    justify-content: space-between;
}

#chatBotInput {
    width: 80%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

#chatBotBtn {
    padding: 10px 15px;
    border: none;
    background-color: #1164FE;
    color: white;
    border-radius: 5px;
    cursor: pointer;
}

#chatBotBtn:hover {
    background-color: #0a4ec4;
}

#chatMessages {
    display: flex;
    flex-direction: column;
    padding: 10px;
    overflow-y: auto;
    height: 100%;
}

/* Styles for customer messages */
.customerMessage {
    align-self: flex-end;
    background-color: #e1ffc7;
    color: black;
    padding: 10px;
    margin-top: 10px;
    border-radius: 10px;
    max-width: 70%;
    text-align: right;
}

/* Styles for system messages */
.systemMessage {
    align-self: flex-start;
    background-color: #f1f1f1;
    color: black;
    padding: 10px;
    margin-top: 10px;
    border-radius: 10px;
    max-width: 70%;
    text-align: left;
}



.hero
{
    width: 100%;
    height: 100vh;
    background-image: linear-gradient(rgba(12,3,51,0.3), rgba(12,3,51,0.3));
    position: relative;
    padding: 0 5%;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    flex-direction: column;
}

nav
{
    width: 100%;
    position: fixed;
    top: 0;
    left: 0;
    padding: 17px 10px;
    display: flex;
    align-items: center;
    justify-content: right;
    background-color: rgba(0, 0, 0, 0.4);
    z-index: 1000;
}

nav .logo
{
    width: 30px;
    margin-right: 970px;
}

nav ul
{
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

nav ul li
{
    margin-right: 20px;
}

nav ul li a
{
    text-decoration: none;
    color: #fff;
    font-size: 17px;
}

/* Thêm phần này */
nav .search-form
{
    display: flex;
    align-items: center;
    margin-right: 20px;

}

nav .search-form input[type="text"]
{
    padding: 5px 10px;
    font-size: 17px;
    border: 1px solid #fff;
    background-color: rgba(255, 255, 255, 0.2);
    color: #fff;
    border-radius: 100px;
}

nav .search-form input[type="text"]::placeholder
{
    color: #fff;
}

.content
{
    display: flex;
    flex-direction: column;
    align-items: flex-start; /* Căn về bên trái */
    justify-content: center; /* Căn giữa theo trục dọc */
    height: 100%; /* Chiều cao 100% để căn giữa theo trục dọc */
    padding: 0 6%; /* Căn lề trong để đồng bộ với phần nav */
}

.content h1
{
    color: #fff;
    font-size: 90px;
    font-weight: 600;
    transition: 0.5s;
}

.content a
{
    text-decoration: none;
    display: inline-block;
    color: #fff;
    font-size: 24px;
    border: 2px solid #fff;
    padding: 14px 70px;
    border-radius: 50px;
    margin-top: 50px;
}

.content h1:hover
{
    -webkit-text-stroke: 2px #fff;
    color: transparent;
}

.back-video
{
    position: absolute;
    right: 0;
    bottom: 0;
    z-index: -1;
}

@media (min-aspect-ratio: 16/9) {
    .back-video
    {
        width: 100%;
        height: auto;
    }
}

@media (max-aspect-ratio: 16/9) {
    .back-video
    {
        width: auto;
        height: 100%;
    }
}

/* Sứ mệnh */
.sumenh
{
    width: 100%;
    height: 100vh;
    background-color: #ffffff;
}
#gif-phattrien
{
    overflow: hidden;
}

#text-sumenh-top
{
    font-size: 30px;
    font-weight: 600;
    margin-top: 90px;
    float: left;
    margin-left: 120px;
    height: 200px;
    width: 800px;
}
#text-sumenh-top-xam
{
    color: gray;
}
/* gif phát triển cho sứ mệnh bênh cạnh text-sứ mệnh*/
#gif-phattrien
{
    float: right;
    margin-top: 90px;
    width: 800px;
    height: 90.5vh;
}
/* text phát triển cho sứ mệnh bênh cạnh gif-sứ mệnh*/
#text-sumenh-bottom
{
    float: left;
    margin-left: 120px;
    margin-top: 10px;
    width: 600px;
    height: 67vh;
}

/* text phát triển nằm trong text sứ mệnh bottom */
#text-sumenh-bottom1, #text-sumenh-bottom2,#text-sumenh-bottom3,#text-sumenh-bottom4
{
    float: left;
    margin-left: 30px;
    margin-top: 20px;
    width: 250px;
    height: 250px;
    text-align: center;
}
#text-in-sm-bt1-top,#text-in-sm-bt2-top,#text-in-sm-bt3-top,#text-in-sm-bt4-top
{
    font-size: 80px;
    font-weight: 600;
    margin-top: 10px;
    margin-left: 10px;
    line-height: 90px;
    margin-right: 10px;
    width: 230px ;
    height: 85px;
    text-align: left;
    background: linear-gradient(20deg,rgba(200, 100, 250, 0.6), rgba(20, 146, 255, 2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
#text-in-sm-bt1-bottom,#text-in-sm-bt2-bottom,#text-in-sm-bt3-bottom,#text-in-sm-bt4-bottom
{
    font-size: 20px;
    font-weight: 600;
    background-color: white;
    margin-top: 5px;
    margin-left: 10px;
    margin-right: 10px;
    width: 200px ;
    height: 125px;
    text-align: left;
    border-top: 3px solid darkgray;
    border-top-style: groove;
    text-space: 10px;
    color: darkgray;
}
#img-sumenh
{
    margin-left: 80px;
    width: auto;
    height: 90.5vh;
}
.home__swiper {
    margin: initial;
}

.home__images {
    display: flex;
    justify-content: center; /* Center horizontally */
    align-items: center; /* Center vertically */
    height: 100%;
    width: 100%;
}

.home__swiper {
    width: 80%; /* Adjust width as needed */
}

.home__article,
.home__img {
    width: 500px;
    height: auto;
    transition: transform .4s; /* Use transform for better performance */
    margin-top: 50px;
    margin-left: 23px;
    margin-bottom: 50px;
}

.home__article {
    transform: scale(.8);
}

/* Swiper class */
.swiper-slide-active,
.swiper-slide-duplicate-active {
    transform: scale(1);
}

/* Phần about team research */
.aboutUS
{
    width: 100%;
    height: 100vh;
    border-color: white;
    border-right: white;
}
.back-video2
{
    height: 80vh;
    width: 100%;
    border-color: white;
    border-right: white;

}
@media (min-aspect-ratio: 16/9) {
    .back-video2
    {
        width: 100%;
        height: 100%;
    }
}

@media (max-aspect-ratio: 16/9) {
    .back-video2
    {
        width: auto;
        height: 100%;
    }
}

#about1
{
    position: absolute;
    top: 1050px;
    left: 30px;
    width: 1100px;
    height: 300px;
    color: black;
    font-size: 35px;
    font-weight: 90;
    transition: 0.5s;
    background: linear-gradient(360deg,rgba(100, 149, 237, 0.6), rgba(166, 146, 255, 2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;

}

/* Phần research */
.research
{
    width: 100%;
    height: 157vh;
    background-color: white;
    float: left;
    font-family: Surt Regular, sans-serif;

    opacity: 0;
    transform: translateY(-50px);
    transition: opacity 0.5s ease-out, transform 0.5s ease-out;

}
.research.visible {
    opacity: 1;
    transform: translateY(0);
}

#research-children
{
    margin-left: 300px;
    margin-top: 100px;
}

.section-thumbnails-grid {
    display: flex;
    flex-wrap: wrap;
}
.section-thumbnails-grid.item-col-2 .grid-item {
    display: flex;
    flex-direction: column;
    text-decoration: none;
    outline: 0;
    width: 600px;
    margin-bottom: 60px;
}
.section-thumbnails-grid.item-col-2 .grid-item:nth-child(odd) {
    margin-right: 48px;
}
.section-thumbnails-grid.item-col-2 .grid-item-image {
    width: 100%;
    height: 342px;
    border-radius: 40px;
    padding: 20px 23px;
    display: flex;
    align-items: flex-end;
}

.section-thumbnails-grid.item-col-2 .grid-item-image:hover
{
    transition: transform 0.3s;
    box-shadow: 0 0 20px 0 rgba(0, 0, 0, 0.2);
    transform: scale(1.02);

}

.section-thumbnails-grid.item-col-2 .grid-item-tags {
    display: flex;
    margin-top: auto;
}
.section-thumbnails-grid.item-col-2 .grid-item-tag {
    height: 32px;
    font-size: 14px;
    line-height: 32px;
    font-weight: 600;
    text-transform: uppercase;
    color: #181821;
    padding: 0 16px;
    border-radius: 40px;
    background: radial-gradient(
            1060.11% 100% at 100% -11.84%,
            #e9e9ff 0,
            rgba(207, 207, 255, 0.4) 100%
    );
    mix-blend-mode: luminosity;
    box-shadow: 0 8px 24px 0 rgba(18, 18, 26, 0.08);
    backdrop-filter: blur(10px);
    margin-right: 7px;
}
.section-thumbnails-grid.item-col-2 .grid-item-tag:last-child {
    margin-right: 0;
}
.section-thumbnails-grid.item-col-2 .grid-item-title {
    font-size: 32px;
    line-height: 38px;
    font-weight: 400;
    padding: 16px 0;
    color: #181821;
}
.section-thumbnails-grid.item-col-2 .grid-item-text {
    font-size: 18px;
    line-height: 22px;
    color: #181821;
}
.section-thumbnails-grid.item-col-2 .grid-item-text span {
    padding-right: 20px;
}
.section-thumbnails-grid.item-col-3 .grid-item {
    display: flex;
    flex-direction: column;
    text-decoration: none;
    outline: 0;
    width: calc(33% - 12px);
    margin-right: 24px;
    margin-bottom: 96px;
}
.section-thumbnails-grid.item-col-3 .grid-item:nth-child(3n) {
    margin-right: 0;
}
.section-thumbnails-grid.item-col-3 .grid-item-image {
    width: 100%;
    height: 229px;
    border-radius: 20px;
}
.section-thumbnails-grid.item-col-3 .grid-item-title {
    font-size: 32px;
    line-height: 38px;
    font-weight: 400;
    padding: 16px 0;
    color: rgba(233, 233, 255, 0.9);
}
.section-thumbnails-grid.item-col-3 .grid-item-text {
    font-size: 18px;
    line-height: 22px;
    color: rgba(233, 233, 255, 0.6);
}
.section-thumbnails-grid.item-col-3 .grid-item-text span {
    padding-right: 20px;
}
.section-text-blocks-slider-wrapper {
    overflow: unset !important;
}
.section-text-blocks-slider-wrapper .section-text-blocks-slides .swiper-slide {
    max-width: 560px !important;
}
.section-text-blocks-slider-wrapper .section-text-blocks-slide {
    background: rgba(233, 233, 255, 0.02);
    padding: 26px 28px;
    border-radius: 40px;
    border: 1px solid rgba(233, 233, 255, 0.04);
}
.section-text-blocks-slider-wrapper .section-text-blocks-slide .slide-title {
    font-size: 32px;
    font-weight: 400;
    padding-bottom: 5px;
}
.section-text-blocks-slider-wrapper .section-text-blocks-slide .slide-text {
    font-size: 18px;
    line-height: 24px;
    color: rgba(233, 233, 255, 0.6);
}
.section-text-blocks-slider-wrapper .section-text-blocks-slide .slide-text p {
    font-size: 18px;
    line-height: 24px;
    color: rgba(233, 233, 255, 0.6);
    padding-bottom: 5px;
}
.section-cta
{
    width: 80%;
    height: 8vh;
    float: left;
}

.button-opacity-1 {
    background: rgba(10, 10, 2, 0.09);
    display: inline-flex;
    font-size: 18px;
    color: rgba(10, 10, 2, 0.9);
    padding: 19px 20px;
    border-radius: 28px;
    border: 1px solid rgba(233, 233, 255, 0.04);
    backdrop-filter: blur(15px);
    text-decoration: none;
    outline: 0;
}
.button-opacity-1.button-icon {
    padding-left: 51px;
    position: relative;
}
.button-research
{
    margin-left: 43%;
}
.button-opacity-1.button-icon:before {
    position: absolute;
    content: "";
    height: 24px;
    width: 24px;
    left: 20px;
    top: calc(50% - 12px);
    background-image: url(../images/icon-main.svg);
}
.button-opacity-1.button-icon:hover
{
    background: rgba(10, 10, 2, 0.2);
    transform: scale(1.1);
    transition: 0.7s;
}

#text-rs-top
{
    float: left;
}
#text-rs-top-1
{
    font-size: 20px;
    margin-top: 20px;
    margin-left: 850px;
    color: lightgray;
}

/* Phần application */
.application
{
    width: 100%;
    height: 100vh;
    background-color: white;
    float: left;
    font-family: "Roboto", sans-serif;

    opacity: 0;
    transform: translateY(-50px);
    transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}
.application.visible {
    opacity: 1;
    transform: translateY(0);
}


#box1,#box2,#box3
{
    width: 386px;
    height: 600px;
    float: left;
    margin-left: 252px;
    border-radius: 40px;
    margin-top: 10px;
    background-color: gainsboro;
    cursor: pointer;

}
#box1-top img
{
    width: 386px;
    height: 385px;
    border-top-left-radius: 40px;
    border-top-right-radius: 40px;
}
#box1-top img:hover
{
    transition: transform 0.3s;
    box-shadow: 0 0 20px 0 rgba(0, 0, 0, 0.2);
}
#box2-top img
{
    width: 386px;
    height: 385px;
    border-top-left-radius: 40px;
    border-top-right-radius: 40px;
}

#box3-top img
{
    width: 386px;
    height: 385px;
    border-top-left-radius: 40px;
    border-top-right-radius: 40px;
}
.text-top-box
{
    font-size:20px;
    color: darkgray;
    margin-top: 10px;
    float: left;
}
.text-mid-box
{
    font-size: 30px;
    color: black;
    margin-top: 25px;
    float: left;
    margin-left: -45px;
}
#box1-bottom,#box2-bottom,#box3-bottom
{
    margin-left: 20px;
    float: left;
}
.text-bottom-box
{
    font-size: 17px;
    color: black;
    margin-top: 10px;
    font-weight: 200;
    float: left;
}

#box2,#box3
{
    width: 386px;
    height: 600px;
    float: left;
    margin-left: 100px;
    border-radius: 40px;
    margin-top: 10px;
    background-color: gainsboro;
}

#box1:hover,#box2:hover,#box3:hover
{
    background-color: white;
    box-shadow: 0 0 20px 0 rgba(0, 0, 0, 0.2);
    transition: 0.5s;
    transform: scale(1.02);
}
#text-application-top
{
    width: 100%;
    height: 100px;
    float: left;
    margin-top: 70px;
    text-align: center;
}

#text-application-top-1
{
    font-size: 20px;
    margin-top: 20px;
    margin-left: 20px;
    color: lightgray;
}
#text-application-top-2,#text-rs-top-2{
    font-size: 30px;
    margin-top: 15px;
    margin-left: 690px;
    background: linear-gradient(360deg,rgba(66, 133, 244, 0.6), rgba(166, 146, 255, 2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    float: left;
}
.icon_bottom
{
    width: 100%;
    height: 35px;
    float: left;
    margin-top: 10px;
}
.icon-b
{
    width: 35px;
    height: 35px;
    float: right;
    margin-right: 20px;
}


.section-cta1
{
    width: 80%;
    height: 8vh;
    float: left;
    align-items: center;
}

.button-opacity-2 {
    background: rgba(10, 10, 2, 0.09);
    display: inline-flex;
    font-size: 18px;
    color: rgba(10, 10, 2, 0.9);
    padding: 19px 20px;
    border-radius: 28px;
    border: 1px solid rgba(233, 233, 255, 0.04);
    backdrop-filter: blur(15px);
    text-decoration: none;
    outline: 0;
}
.button-opacity-2.button-icon {
    padding-left: 51px;
    position: relative;
}
.button-research1
{
    margin-left: 57%;
    margin-top: 3%;
}
.button-opacity-2.button-icon:before {
    position: absolute;
    content: "";
    height: 24px;
    width: 24px;
    left: 20px;
    top: calc(50% - 12px);
    background-image: url(../images/icon-main.svg);
}
.button-opacity-2.button-icon:hover
{
    background: rgba(10, 10, 2, 0.2);
    transform: scale(1.1);
    transition: 0.7s;
}
/* Phần contact */
.contactUS
{
    width: 100%;
    height: 90vh;
    float: left;

    opacity: 0;
    transform: translateY(-50px);
    transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}
.contactUS.visible {
    opacity: 1;
    transform: translateY(0);
}
#contactUs-left
{
    width: 60%;
    height: 70vh;
    float: left;
}
#contactUS-leftTop
{
    width: 100%;
    height: 40vh;
    float: left;
}
#contactUs-left-1
{
    font-size: 50px;
    margin-left: 70px;
    font-weight: 550;
    color: black;
    margin-top: 100px;
    float: left;;
}
#contactUs-left-2
{
    font-size: 17px;
    margin-left: -240px;
    font-weight: 200;
    color: darkgray;
    margin-top: 160px;
    float: left;
}
#contactUs-left-3
{
    font-size: 17px;
    margin-left: -240px;
    font-weight: 200;
    color: black;
    margin-top: 170px;
    float: left;
}
#contactUs-left-4
{
    font-size: 17px;
    margin-left: -240px;
    font-weight: 200;
    color: black;
    margin-top: 180px;
    float: left;
}
#contactUs-left-5
{
    font-size: 17px;
    margin-left: -240px;
    font-weight: 200;
    color: black;
    margin-top: 190px;
    float: left;
}
#contactUs-left-bottom
{
    width: 100%;
    height: 50vh;
    float: left;
}
#left
{
    width: 33%;
    height: 40vh;
    float: left;
}
#mid{
    width: 33%;
    height: 40vh;
    float: left;
}
#right
{
    width: 34%;
    height: 40vh;
    float: left;
}
#left-1,#right-1
{
    font-weight: bold;
    font-size: 20px;
    margin-top: 10px;
    float: left;
    margin-left: 80px;
}
#left-2,#mid-2,#right-2
{
    font-weight: 520;
    font-size: 17px;
    margin-top: 10px;
    float: left;
    margin-left: 80px;
    color: darkgray;
}
#mid-2
{
    margin-left: 30px;
}
#mid-1
{
    font-weight: bold;
    font-size: 20px;
    margin-top: 10px;
    float: left;
    margin-left: 30px;
}
#right-1
{
    margin-left: 20px;
}
#right-2
{
    margin-left: 20px;
}

#contactUs-right{
    width: 40%;
    height: 70vh;
    float: left;
}
#contactUs-right-children
{
    width:80%;
    height: 70vh;
    margin-top: 100px;
    float: left;
    margin-left: 100px;
    border-radius: 40px;
    box-shadow: 0 0 20px 0 rgba(0, 0, 0, 0.2);
}
#contactUs-right-children:hover
{
    transition: 0.5s;
    transform: scale(1.04);
    box-shadow: 0 0 20px 0 rgba(0, 0, 0, 0.2);
}
#contactUs-rightTop
{
    width: 100%;
    height: 10vh;
    float: left;
    border-top-left-radius: 40px;
    border-top-right-radius: 40px ;
}
#contactUs-right-1
{
    font-size: 45px;
    margin-left: 40px;
    font-weight: 550;
    color: black;
    margin-top: 10px;
    float: left;;
}
#contactUs-right-2
{
    font-size: 17px;
    margin-left: -250px;
    font-weight: 200;
    color: black;
    margin-top: 50px;
    float: left;
}
#firstName
{
    width: 40%;
    height: 40px;
    float: left;
    margin-top: 30px;
    margin-left: 40px;
    border-radius: 20px;
    border: 1px solid gray;
    text-align: left;
}
#lastName
{
    width: 40%;
    height: 40px;
    float: left;
    margin-top: 30px;
    margin-left: 10px;
    border-radius: 20px;
    border: 1px solid gray;
    text-align: left;
}
#Email
{
    width: 82%;
    height: 40px;
    float: left;
    margin-top: 20px;
    margin-left: 40px;
    border-radius: 20px;
    border: 1px solid gray;
    text-align: left;
}
#cboChon
{
    width:15%;
    height: 40px;
    float: left;
    margin-top: 20px;
    margin-left: 40px;
    border-radius: 20px;
    border: 1px solid gray;
}
#phonenumber
{
    width: 65%;
    height: 40px;
    float: left;
    margin-top: 20px;
    margin-left: 10px;
    border-radius: 20px;
    border: 1px solid gray;
    text-align: left;
}
#message
{
    width: 82%;
    height: 150px;
    float: left;
    margin-top: 20px;
    margin-left: 40px;
    border-radius: 20px;
    border: 1px solid gray;
    text-align: left;
}

#btnSend
{
    width: 82%;
    height: 40px;
    float: left;
    margin-top: 20px;
    margin-left: 40px;
    border-radius: 20px;
    border: 1px solid #1164FE;
    background-color: #1164FE;
    color: white;
    font-weight: 520;
    font-size: 17px;
    text-align: center;
    cursor: pointer;
}
#btnSend:hover
{
    background-color: #1164FE;
    transition: 0.5s;
    transform: scale(1.04);
    box-shadow: 0 0 20px 0 rgba(0, 0, 0, 0.2);

}
#text-dit
{
    font-size: 13px;
    margin-top: 12px;
    margin-left: 150px;
    color: darkgray;
    float: left;
}

/* Phần footer */
.footer
{
    width: 100%;
    height: 35vh;
    background-color: #2980b9;
    float: left;
}

body{
    line-height: 1.5;
    font-family: 'Poppins', sans-serif;
}
.footer{
    margin:0;
    padding:0;
    box-sizing: border-box;
}
.container{
    max-width: 1170px;
    margin:auto;
}
.row{
    display: flex;
    flex-wrap: wrap;
}
ul{
    list-style: none;
}
.footer{
    background-color: #24262b;
    padding: 70px 0;
}
.footer-col{
    width: 25%;
    padding: 0 15px;
}
.footer-col h4{
    font-size: 18px;
    color: #ffffff;
    text-transform: capitalize;
    margin-bottom: 35px;
    font-weight: 500;
    position: relative;
}
.footer-col h4::before{
    content: '';
    position: absolute;
    left:0;
    bottom: -10px;
    background-color: #e91e63;
    height: 2px;
    box-sizing: border-box;
    width: 50px;
}
.footer-col ul li:not(:last-child){
    margin-bottom: 10px;
}
.footer-col ul li a{
    font-size: 16px;
    text-transform: capitalize;
    color: #ffffff;
    text-decoration: none;
    font-weight: 300;
    color: #bbbbbb;
    display: block;
    transition: all 0.3s ease;
}
.footer-col ul li a:hover{
    color: #ffffff;
    padding-left: 8px;
}
.footer-col .social-links a{
    display: inline-block;
    height: 40px;
    width: 40px;
    background-color: rgba(255,255,255,0.2);
    margin:0 10px 10px 0;
    text-align: center;
    line-height: 40px;
    border-radius: 50%;
    color: #ffffff;
    transition: all 0.5s ease;
}
.footer-col .social-links a:hover{
    color: #24262b;
    background-color: #ffffff;
}

/*responsive*/
@media(max-width: 767px){
    .footer-col{
        width: 50%;
        margin-bottom: 30px;
    }
}
@media(max-width: 574px){
    .footer-col{
        width: 100%;
    }
}