*{
    margin: 0;
    padding: 0;
    font-family: "Poppins", sans-serif;
    font-weight: 400;
    font-style: normal;

}
.header{
    min-height: 100vh;
    width: 100%;
    background-image: linear-gradient(rgba(4,9,30,0.7), rgba(27, 37, 81, 0.7)),url(REFINE.jpg);
    background-position: center;
    background-size: cover;
}
nav img{
    width: 150px;
    height: 80px;
}

nav{
    display: flex;
    justify-content: flex-end;
    align-items: center;
    padding: 15px 25px;
    box-sizing: border-box;
}

.nav-links{
    flex: 1;
    text-align: right; 
}
.nav-links ul li a{
    text-decoration: none;
    color: white;
    font-size: 12px;
}

.nav-links ul {
    list-style: none;
    display: flex;
    padding: 8px 12px;
    position: relative;
    margin: 0;
    justify-content:flex-end;
    gap: 10px;
}
.nav-links ul li::after{
    content:"";
    width: 0%;
    height: 2px;
    background: #ffffff;
    display: block;
    margin: auto;
    transition: 0.5s;
}
.nav-links ul li:hover::after{
    width:100%;

}
.header{
    position: relative;
}
.text-box{
    width: 90%;
    color:#fff;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}
.text-box h1{
    font-size: 40px;
}
.text-box p{
    margin: 10px 0 62px;
    font-size: 14px;
    color: #fff
}
.text-box a{
    display: inline-block;
    margin-top: 20px;
    color: white;
    border: 1px solid white;
    padding: 10px 20px;
    text-decoration: none;
}
.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;
    background: #00008B;
    transition: 1s;
}
nav .fa{
    display: none;
}



@media(max-width: 700px){
    .text-box h1{
        font-size: 20px;
    }
    .nav-links ul {
    display: block;
    }
    .nav-links {
        position: absolute;
        background: #00008B;
        height: 100vh;
        width: 200px;
        top: 0;
        right: -200px;
        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;

     }

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


h1{
    font-size: 36px;
    color:#16a4cb;
    font-weight: 600;
}
p{
    color: #2e4bd8;
    font-size: 14px;
    font-weight: 300;
    line-height: 22px;
    padding: 10px;
}
.row{
    margin-top: 2%;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;

}
.course-col{
    flex-basis: 48%;
    background:#8ccbe2;
    border-radius:10px;
    margin-bottom: 5%;
    padding: 100px 10px;
    box-sizing: border-box
}
.course-col video{
    width: 100%;
    border-radius: 10px;
    margin-top: 15px;
}
.course-col a{
    display: inline-block;
    margin-top: 10px;
    color: #00008B;
    font-weight: 600;
    text-decoration: none;
}
.course-col a:hover{
    text-decoration: underline;
}
@media(max-width: 700px){
    .row{
        flex-direction:column;
    }
}
.about{
    width: 80%;
    margin: auto;
    text-align: center;
    padding-top: 50px;
}
.about-col{
    flex-basis: 32%;
    border-radius: 10px;
    margin-bottom: 30px;
    position: relative;
    overflow: hidden;
}
.about-col img{
    width: 100%;
    height: 250px;
    object-fit: cover;
    display: block;
}

.calendar{
    width:80%;
    margin: auto;
    text-align: center;
    padding-top: 100px;
}
.calendar iframe{
    width: 100%;
    height: 600px;
    border: none;
    border-radius: 10px;
}
.calendar iframe{
    width: 80%;
    height: 600px;
    border: none;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.contact{
    margin: 100px auto;
    width: 100%;
    background-image: linear-gradient(rgba(4,9,30,0.7), rgba(27, 37, 81, 0.7)), url("aqua-green-background.jpg");
    border-radius: 10px;
    text-align: center;
    padding: 100px 20px;
}

.contact h1{
    color: #768cc9;
    margin: 40px;
    padding: 0;
}

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

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

html{
    scroll-behavior: smooth;
}
section{
    scroll-margin-top: 90px;
}
nav{
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(0,0,0,0.3);
}
html {
    scroll-behavior: smooth;
}
section {
    scroll-margin-top: 90px;
}