*{
    margin: 0;
    padding: 0;
    font-family: poppins, sans-serif;
    box-sizing: border-box;
}
body{
    background: #080808;
    color: #fff;
}
#header{
    width: 100%;
    height: 100vh;
    background: url(images/nis.jpg);
    background-size: cover;
    background-position: center;
}
.container
{
  padding: 10px 10%;  
}
nav{
    display:flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
}
.logo{
    width: 140px;
}
nav ul li{
    display: inline-block;
    list-style: none;
    margin: 10px 20px;
}
nav ul li a
{
    color: #fff;
    text-decoration: none ;
    font-size: 18px ;
    position: relative;
}
nav ul li a::after{
    content: '';
    width: 0%;
    height: 3px;
    background: #ff004f;
    position: absolute;
    left: 0;
    bottom: -6px;
    transition: 0.5s;
}
nav ul li a:hover::after{
    width: 100%;
}
.header-text{
    margin-top: 20% ;
    font-size: 30px;
}
.header-text h1{
    font-size: 60px;
    margin-top: 20px;
}
.header-text h1 span{

    color: rgb(18, 220, 235);
}
/*--------------------------*/
#about{
    padding: 80px 0;
    color: #ababab;
}
.row{
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}
.about-col-1{
    flex-basis:35%;
    border-radius: 15px; 
    
}.about-col-2
{
    flex-basis:60%
}
.sub-title{
    font-size: 60px;
    font-weight: 600;
    color: #fff;
}
.tab-titles{
    display: flex;
    margin: 20px 0px 40px;
}
.tab-links{
    margin-right: 50px;
    font-size: 18px;
    font-weight: 500;
    cursor: pointer;
    position: relative;

}.tab-links::after{
    content:'';
    width: 0;
    height: 3px;
    background: #ff004f;
    position: absolute;
    left: 0;
    bottom: -8;
    transition: 0.5s;
}
.tab-links.active-link::after
{
    width: 50%;
}
.tab-contents ul li{
    list-style:none;
    margin: 10px 0;

}
.tab-contents ul li span{
    color:#8f1139d3;
    font-size: 14px;
    
}.tab-contents{
    display: none;
}
.tab-contents.active-tab
{
    display: block;
}