*{
    margin: 0;
    padding: 0;
      }
      
.header{
    min-height: 100vh;
    width: 100%;
    background-image: linear-gradient(rgba(0, 0, 0,0.3), rgba(0, 0, 0, 0.3)), url(../img/background_2.png);
    background-position: center;
    background-size: cover;
    position: relative;
}
nav{
    display: flex;
    padding: .5% 1.5%;
    justify-content: space-between;
    align-items: center;
    background-color:black;
}
nav img{
    width: 200px;
}

.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: #4b4949;
 text-decoration: none;
 font-family: Arial, Helvetica, sans-serif;
 font-size: 20px;
}
.nav-links ul li::after{
    content: '';
    width: 0%;
    height: 2px;
    background: #4b4949;
    display: block;
    margin: auto;
    transition: 0.5s;
}
.nav-links ul li:hover::after{
    width: 100%;
}
.nav-links ul li a:hover{
    color: silver;
    font-weight: bold;
    transition: 0.5s;
}
.content1{
    width: 90%;
    color: silver;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}
.content1 h1{
    font-size: 70px;
    font-family: 'Verdana';
}
.content1 p{
   font-size: 30px;
   font-family: 'Verdana';
}
.enroll-btn{
    display: inline-block;
    text-decoration: none;
    color: black;
    background-color: rgb(181, 132, 9);
    border: 1px solid silver;
    border-radius: 50px;
    padding: 8px 35px;
    font-size: 30px;
    position: relative;
    cursor: pointer;
}
.enroll-btn:hover{
    color: silver;
    background-color:  #201e1e;
    border: 1px solid rgb(181, 132, 9);
    transition: 1.2s;
}

nav .fa{
    display: none;
}

/*----media query-----*/
@media(max-width: 700px)
{
    .content1 h1{
        font-size: 30px;
        font-family: 'Verdana';

}
.content1 p{
    font-size: 18px;
    font-family: 'Verdana';
 }
 .nav-links ul li{
    display: block;
 }
 .nav-links{
    position: absolute;
    background: black;
    height: 100vh;
    width: 200px;
    top: 0;
    right: -200px;
    text-align: left;
    z-index: 2;
    transition: 1s;
 }
 .nav-links ul{
    padding: 30px;
 }
 nav .fa{
    display: block;
    color: silver;
    margin: 10px;
    font-size: 28px;
    cursor: pointer;
 }
 .row{
    flex-direction: column;
}
}

/*-----coursesoverview-----*/
.coursesoverview{
    width: 100%;
    margin: auto;
    text-align: center;
    padding-top: 50px;
    background-color: #1a1a1a;
}
.row{
    margin-top: 5%;
    display: flex;
    justify-content: space-between;
    color: silver;
    font-size: 25px;
}
.course-col{
    flex-basis: 31%;
    background: rgb(68, 66, 66);
    border-radius: 15px;
    margin-bottom: 5%;
    padding: 20px 12px;
    box-sizing: border-box;
    transition: 0.5s;
}
h2{
    text-align: center;
    font-weight: 600;
    margin: 10px 0px;
}
.course-col p{
    color: black;
}
.course-col:hover{
    box-shadow: 0 0 20px 0 rgba(46, 255, 252, 0.8);
}
.row:hover{
    color: none;
}

.testimonials{
    width: 100%;
    margin: auto;
    text-align: center;
    padding-top: 50px;
    background-color: rgb(5, 77, 77);
}
.testimonials h2{
    text-align: center;
    font-weight: 600;
    margin: 10px 0px;
    color: rgb(225, 225, 225);
    font-size: 35px;
    font-family: 'Verdana';
}
.testimonials p{
    text-align: left;
    font-weight: 300;
    margin: 10px 0px;
    color: silver;
    font-size: 18px;
    text-align: justify;
}
.testimonials-column{
    flex-basis: 31%;
    background: rgb(0,0,0,.3);
    border-radius: 15px;
    margin-bottom: 5%;
    padding: 20px 12px;
    box-sizing: border-box;
    transition: 0.5s;
}

.testimonials-column h3{
    text-align: right;
    font-size: 20px;
    font-weight: 300;
}
.reach-btn{
    display: inline-block;
    text-decoration: none;
    color: rgb(226, 226, 226);
    background-color: rgb(0,0,0,0.3);
    border: 1px solid silver;
    border-radius: 50px;
    padding: 2px 10px;
    font-size: 20px;
    position: relative;
    cursor: pointer;
    margin-bottom: 15px;
}
.reach-btn:hover{
    color: rgb(4, 234, 247);
    background-color: rgb(0,0,0,0.3);
    border: 1px solid rgb(4, 234, 247);
}
/*------footer-------*/
.row1{
    margin-top: 2%;
    margin-left: 2%;
    margin-right: 2%;
    display: flex;
    justify-content: space-between;
    color: silver;
    font-size: 25px;
    text-decoration: none;
}
.links1{
    flex-basis: 31%;
    background: none;
    border-radius: 15px;
    margin-bottom: 5%;
    padding: 20px 12px;
    box-sizing: border-box;
    transition: 0.5s;
}
h3{
    text-align: left;
    font-weight: 600;
    margin: 10px 0px;
    color: rgb(71, 70, 70);
    font-weight: 100;
    font-size: 20px;
}




.footer{
    width: 100%;
    margin: auto;
    text-align: center;
    background-color: rgb(0, 0, 0);
    padding-top: 40px;
}
.footer h4{
    color: rgb(56, 55, 55);
    font-weight: 600;
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    font-size: 25px;
    margin-bottom: 15px;
    margin-top: 0px;

}
.footer p{
    color: rgb(214, 215, 216);
    font-size: 22px;
}

.icons .fa{
    color: rgb(255, 255, 255);
    margin: 0 13px;
    cursor: pointer;
    padding: 18px 0;
    font-size: 30px;
}
.icons .fa:hover{
    color: aqua;
}