main.css

*{
    margin: 0;
    padding: 0;
}

.header{
    /* background-color: red; */
    min-height: 100vh;
    width: 100%;
    background-image: linear-gradient(rgba(4,9,30,0.7),rgba(4,9,30,.7)),url(images/banner.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: 13px;
}

.nav-links ul li::after{
    content: "";
    width: 0%;
    height: 2px;
    background: #f44336;
    display: block;
    margin: auto;
    
}

.nav-links ul li:hover::after{
    width: 100%;
    transition: .5s;
}

.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;
     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: absolute;
        background: #f44336;
        height: 100vh;
        width: 200px;
        right: -200px;
        top: 0;
        text-align: left;
        z-index: 2;
        transition: 1s;
    }

    nav .fa{
        display: block;
        color: #fff;
        margin: 10px;
        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: 10px;
    margin-bottom: 5%;
    padding:  20px 12px;
    box-sizing: border-box;
    transition: .5s;
}

h3{
    text-align: center;
    font-weight: 600;
    margin:10px 0
}

.course-col:hover{
    box-shadow: 0 0 20px 0px rgba(0,0,0.2) ;
}

@media(max-width : 700px){
    .row{
        flex-direction: column;
    }
}

/* -----------Campus--------- */

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

.campus-col{
    flex-basis: 32%;
    border-radius: 10px;
    margin-bottom: 30px;
    position: relative;
    overflow: hidden;
}

.campus-col img{
    width: 100%;
    display: block;
}

.layer{
    background: transparent;
    height: 100%;
    width: 100%;
    position: absolute;
    top: 0;
    left: 0;
    transition: .5s;

}

.layer:hover{
    background: rgba(226,0,0,0.7);
    transition: .5s;
}

.layer h3{
    width: 100%;
    font-weight: 500;
    color: #fff;
    font-size: 26px;
    text-align: center;
    bottom: 0;
    /* left: 50%;
    transform: translateX(-50%); */
    position: absolute;
    opacity: 0;
    transition: .5s;
}

.layer:hover h3{
    bottom: 50%;
    opacity: 1;
}


/* -----------facilities-------- */

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

.facilities-col{
    flex-basis: 31%;
    border-radius: 10px;
    margin-bottom: 5%;
    text-align: left;
}

.facilities-col img{
    width: 100%;
    border-radius: 10px;
}

.facilities-col p {
    padding: 0;
}

.facilities-col h3 {
    margin-top: 16px;
    margin-bottom: 15px;
    text-align: left;
}


/* -----------testimonials-------- */


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

.testimonials-col{
    flex-basis: 31%;
    border-radius: 10px;
    margin-bottom: 5%;
    text-align: left;
    background: #fff3f3;
    padding: 25px;
    cursor: pointer;
    display: flex;
}

.testimonials-col img{
    height: 40px;
    margin-left: 5px;
    margin-right: 30px;
    border-radius: 50%;
}

.testimonials-col p{
    padding: 0;
}

.testimonials-col h3{
    text-align: left;
}
.testimonials-col .fa{
    color: #f44336;
}

@media(max-width: 700px){
    .testimonials-col img{
        margin-left: 0px;
        margin-right: 15px;
    }
}


/* -------------cta----------- */

.cta{
    width: 80%;
    margin: 100px auto;
    text-align: center;
    padding-top: 100px;
    background-image: linear-gradient(rgba(4,9,30,0.7),rgba(4,9,30,.7)),url(images/banner.jpg);
    background-position: center;
    background-size: cover;
    border-radius: 10px;
    text-align: center;
    padding: 100px 0;
}

.cta h1{
    color: #fff;
    margin-bottom: 40px;
    padding: 0;
}

@media(max-width: 700px){
    .cta h1{
        font-size: 24px;
    }
}

/* ---------Footer--------- */

.footer{
    width: 100%;
    /* margin: auto; */
    text-align: center;
    padding-top: 30px 0;
}

.footer h4{
    margin-bottom: 25px;
    margin-top: 20px;
    font-weight: 600;
}

.footer .icons .fa{
    color: #f44336;
    margin: 0 13px;
    cursor: pointer;
    padding: 18px 0;
}

.fa-heart-o{
    color: #f44336;
}


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

.sub-header{
    height: 50vh;
    width: 100%;
    background-image: linear-gradient(rgba(4,9,30,0.7),rgba(4,9,30,.7)),url(images/banner.jpg);
    background-position: center;
    background-size: cover;
    text-align: center;
    color: #fff;
}


.sub-header h1{
    margin-top: 100px;
}

.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-top:15px 0 25px;
    text-align: left;
}

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

.red-btn:hover{
    color: white;
}