*{
    margin: 0;
padding: 0;
font-family: 'Poppins', sans-serif;
}
.header{
min-height: 100vh;
width: 100%;
background-image: linear-gradient(rgba(4,9,30,0.3),rgba(4,9,30,0.7));
background-position: center;
background-size: cover;
position: relative;
}
nav{
    display: flex;
    padding: 2% 6%;
    justify-content: space-between;
    align-items: center;
}
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: #000000;
    text-decoration: none;
    font-size: 13px;
}
.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: #fff;
    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: #fff;
}
.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;
}

nav .fa{
    display: none;
}


@media(max-width: 700px){
    .text-box h1{
    font-size: 20px;
}
    .nav-links ul li{
        display: block;
    }
    .nav-links{
        position: fixed;
        background: #f44336;
        height: 100vh;
        width: 200px;
        top: 0;
        right: -200px;
        text-align: left;
        z-index: 2;
        transition: 1s;
    }
    nav .fa{
        display: block;
        color: #fff;
        margin: 18px;
        font-size: 22px
        cursor: pointer;
    }
    .nav-links ul{
        padding: 30px;
    }
}

/*------ course ------*/

.course{
    width: 80%;
    margin: auto;
    text-align: center;
    padding-top: 100px;
}
h1{
    font-size: 36px;
    font-weight: 600;
}
p{
    color: #777;
    font-size: 14px;
    font-weight: 300;
    line-height: 22px;
    padding: 10px;
}

.row{
    margin-top: 5%;
    display: flex;
    justify-content: space-between;
}
.course-col{
    flex-basis: 31%;
    background: #fff3f3;
    border-radius: 5%;
    padding: 20px 12px;
    box-sizing: border-box;
    transition: 0.5s;
}
h3{
    text-align: center;
    font-weight: 600;
    margin: 10px 0;
}
.course-col:hover{
    box-shadow: 0 0 20px 0px rgba(0,0,0,0.2);
}
@media(max-width: 700px){
    .row{
        flex-direction: column;
    }
}

/*----- about us ------*/

.About{
    width: 80%;
    margin: auto;
    text-align: center;
    padding-top: 50px;
}
.help{
   width: 100%;
    margin: auto;
    text-align: center;
    padding-top: 50px; 
    background-image:  linear-gradient(rgba(4,9,30,0.3),rgba(4,9,30,0.7));
    background-position: center;
background-size: cover;
position: relative;
}
.help-col{
    flex-basis: 32%;
    border-radius: 10px;
    margin-bottom: 30px;
    position: relative;
    overflow: hidden;
}
.help-col img{
    width: 100%;
    display: block;
}
.layer{
    background: transparent;
    height: 100%;
    width: 100%;
    position: absolute;
    top: 0;
    left: 0;
    transition: 0.5s;
}
.layer:hover{
    background: rgba(226,0,0,0.7);
}
.layer h3{
   width: 100%;
    font-weight: 500;
    color: #fff;
    font-size: 26px;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    position: absolute;
    opacity: 0;
    transition: 0.5s
}
.layer:hover h3{
    bottom: 49%;
    opacity: 1;
}

/*------ software ------*/
.software{
    width: 80%;
    margin: auto;
    text-align: center;
    padding-top: 100px;
}
.software-col{
    flex-basis: 50%;
    border-radius: 10px;
    margin-bottom: 5%;
    text-align: left;
}
.software-col img{ 
    width: 100%;
    border-radius: 10px;
}

/*------ Contact ------*/
.contact{
    margin: 100px auto;
    width: 80%;
    background-image: linear-gradient(rgba(0,0,0,0.7),rgba(0,0,0,0.7)),url(banner2.jpg);
    background-position: center;
    background-size: cover;
    border-radius: 10px;
    text-align: center;
    padding: 100px 0;
}
.contact h1{
    color: #fff;
    margin-bottom: 40px;
    padding: 0;
}

@media(max-width: 700px){
    .contact h1{
        font-size: 24px;
    }
}
/*------footer------*/
.footer{
    width: 100%;
    text-align: center;
    padding: 30px 0;
}
.footer h4{
    margin-bottom: 25px;
    margin-top: 20px;
    font-weight: 600;
}
.icons .fa{
    color: #f44336;
    margin: 0 13px;
    cursor: pointer;
    padding: 18p 0;
}

/*------about us page------*/

.sub-header{
    height: 50vh;
    width: 100%;
    background-position: center;
    background-size: cover;
    text-align: center;
    color: #000000;}
.about-us{
    width: 80%;
    margin: auto;
    padding-top: 80px;
    padding-bottom: 50px;
}
.about-col{
    flex-basis: 48%;
    padding: 30px 2px;
}
.about-col img{
    width: 100%;
}
.about-col h1{
    padding-top: 0; 
}
.about-col p{
    padding: 15px 0 25px;
}

.red-btn{
    border: 1px solid #f44336;
    background: transparent;
    color: #f44336;
}

.red-btn:hover{
    color: #fff;
}

/*--------contact us page--------*/

.location{
    width: 80%;
    margin: auto;
    padding: 80px 0;
}
.location iframe{
    width: 100%;
}
.contact-us{
    width: 80%;
    margin: auto;
}

.contact-col{
    flex-basis: 48%;
    margin-bottom: 30px;
}
.contact-col div{
    display: flex;
    align-items: center;
    margin-bottom: 40px;
}
.contact-col div .fa{
    font-size: 28px;
    color: #f44336;
    margin: 10px;
    margin-right: 30px;
}
.contact-col h5{
    font-size: 20px;
    margin-bottom: 5px;
    color: #555;
    font-weight: 400;
}
.contact-col input, .contact-col textarea{
    width: 100%;
    padding: 15px;
    margin-bottom: 17px;
    outline: none;
    border: 1px solid #ccc;
    box-sizing: border-box;
}