*{
    margin: 0;
    padding: 0; 
    font-family: "Ubuntu", sans-serif;
}
.header{
    min-height: 100vh;
    width: 100%;
    background-image: linear-gradient(rgba(4,9,30,0.7),rgba(4,9,30,0.7)),url(images/alps-605287_1280.jpg);
    background-position: center;
    background-size: cover;
    position: relative;
}
nav{
    display: flex;
    padding: 2% 6%;
    justify-content: space-between;
    align-items: center;
}
nav img{
    width: 150px;
}
.nav-links{
    flex: 1;
    text-align: right;
}
.nav-links ul li{
    list-style: none;
    display: inline-block;
    padding: 8px 12px;
    position: relative;
}
.nav-links ul li a{
    color: #fff;
    text-decoration: none;
    font-size: 23
    px;
}
.nav-links ul li::after{
    content: "";
    width: 0;
    height: 2px;
    background: #f44336;
    display: block;
    margin: auto;
    transition: 0.5s;
}
.nav-links ul li:hover::after{
    width: 100%;
}
.text-box{
    width: 90%;
    color: white;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    text-align: center;
}
.text-box h1{
    font-size: 62px;
}
.text-box p{
    margin: 10px 0 40px;
    font-size: 14px;
    color: white;
}
.hero-btn{
    display: inline-block;
    text-decoration: none;
    color: #fff;
    border: 1px solid #fff;
    padding: 12px 34px;
    font-size: 13px;
    background: transparent;
    position: relative;
    cursor: pointer;    
}
.hero-btn:hover{
    border: 1px solid #f44336;
    background: #f44336;
    transition: 1s;
}





















.header2{
    min-height: 45vh;
    width: 100%;
    background-image: linear-gradient(rgba(4,9,30,0.7),rgba(4,9,30,0.7)),url(images/business-5475661_1280.jpg);
    background-position: center;
    background-size: cover;
    position: relative;
}

.course{
    width: 80%;
    margin: auto;
    text-align: center;
    padding-top: 100px;   
}
h1{
    font-size: 36px;
    font-weight: 600;
}
p{
    color: black; 
    font-size:14px ;
    font-weight: 300;
    line-height: 22px;
    padding: 10px;
}
.row{
    margin-top: 5%;
    display: flex;
    justify-content: space-evenly;
}
.course-col{
    flex-basis: 31%;
    background: #c485856b;
    border-radius: 10px;
    margin-bottom: 5%;
    padding: 20px 12px;
    box-sizing: border-box;
    cursor: pointer;
    transition: 0.5s;
    
            
    
    
    
}
h3{
    text-align: center;
    font-weight: 600;
    margin: 10px 0;
}
.course-col:hover{
    box-shadow: 0 0 20px 0px rgba(0,0,0,0.8);
}
.hero-btn2{
    display: inline-block;
    text-decoration: none;
    color: #000000;
    border: 1px solid #000000;
    padding: 12px 34px;
    font-size: 13px;
    background: transparent;
    position: relative;
    cursor: pointer;
}
.hero-btn2:hover{
    border: 1px solid #f44336;
    background: #f44336;
    transition: 1s;
 }   



















 .header3{
    min-height: 50vh;
    width: 100%;
    background-image: linear-gradient(rgba(4, 9, 30, 0.7),rgba(4, 9, 30, 0.7)),url(images/imprint-2508603_1280.jpg);
    background-position: center;
    background-size: cover;
    position: relative;
}
.course2{
    width: 80%;
    margin: auto;
    text-align: center;
    padding-top: 100px;
}

.course2 h1{
    font-size: 70px;
    font-weight: 600;
}
.course2 p{
    color: black; 
    font-size: 23px ;
    font-weight: 300;
    line-height: 32px;
    padding: 60px;

}
















 























.header5{
    min-height: 50vh;
    width: 100%;
    background-image: linear-gradient(rgba(4, 9, 30, 0.7),rgba(4, 9, 30, 0.7)),url(images/question-mark-1872665_1280.jpg);
    background-position: center;
    background-size: cover;
    position: relative;
}
.hero-btn3{
    display: inline-block;
    text-decoration: none;
    color: #fff;
    border: 1px solid #fff;
    padding: 12px 34px;
    font-size: 13px;
    background: transparent;
    position: relative;
    cursor: pointer;
}
.hero-btn3:hover{
    border: 1px solid #f44336;
    background: #f44336;
    transition: 1s;
 }   



 .course3{
    width: 80%;
    margin: auto;
    text-align: left;
    padding-top: 100px;
}

.course3 p{
    color: black; 
    font-size: 23px ;
    font-weight: 300;
    line-height: 32px;
    padding: 60px;

}

.course3 h1{
    font-size: 45px;
    font-weight: 600;
    padding-left: 5vh;
}





























.header4{
    min-height: 50vh;
    width: 100%;
    background-image: linear-gradient(rgba(4,9,30,0.7),rgba(4,9,30,0.7)),url(images/interface-3614766_1280.png);
    background-position: center;
    background-size: cover;
    position: relative;
}