*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    text-decoration: none;
    border: none;
    outline: none;
    font-family:'Times New Roman', Times, serif;
}
:root{
    --bg-color: #011016;
    --second-bg-color: #313b3e;
    --text-color: #fff;
    --main-color: #568203;
    /*-----#8df5fb;----*/
}
html{
    font-size: 100%;
    overflow-x: hidden;
}
body{
    background: var(--bg-color);
    color: var(--text-color);
}
section{
    min-height: 100vh;
    padding: 10rem 9% 2rem;
}
.header{
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 3rem 5%;
    background: var(--bg-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 100; 
}
.logo{
    font-size: 2rem;
    color: var(--text-color);
    font-weight: 700;
    cursor: default;
} 
/*-------Style for the dropdown container--------*/
.dropdown {
    position: relative;
    display: inline-block;
    
}
.dropdown-content {
    display: none;
    position: absolute;
    
    background-color: transparent;
    min-width: 260px;
    
    z-index: 1;
}
.dropdown-content a {
    padding: 6px 8px;
    display: block;
    text-decoration: none;
    color: var(--text-color); 
    font-size: .5rem; 
    transition: 3s; 
}
.dropdown-content a:hover {
    background-color: transparent;
    color: var(--main-color); 
    
}
.dropdown:hover .dropdown-content {
    display: block;
}
.navbar a{
    font-size: 1.2rem;
    color: var(--text-color);
    margin-left: 3rem;
    transition: .5s;
    
}
.navbar a:hover,
.navbar a.active{
    color: var(--main-color);
    
}
.home{
    display: flex;
    justify-content: center;
    align-items: center;
}
.home-img img{
    width: 50vw;
}
.home-content h3{
    font-size: 2.2rem;
    font-weight: 600;
}
.home-content h3:nth-of-type(2){
    margin-bottom: 2rem;
}
span{
    color: var(--main-color);
}
.home-content h1{
   font-size: 4rem; 
   font-weight: 600;
   line-height: 1.3;
}
.home-content p{
    font-size: 1.5rem;
}
.btn{
    display: inline-block;
    padding: 1rem 1rem;
    background: var(--main-color);
    border-radius: 2.5rem;
    box-shadow: 0 0 1rem var(--main-color);
    font-size: 1.2rem;
    color: var(--second-bg-color);
    letter-spacing: .1rem;
    font-weight: 300;
    transition: .5s ease;
   
}
.btn:hover{
    box-shadow: none;
}



/* ---------------------People Tab---------------*/

.people{
    display: flex;
    justify-content: left;
    align-items: center;
    gap: 2rem;
    background: var(--bg-color);
}
.people-img img{
    width: 20vw;
    margin-top: -52px;
}
.heading{
    text-align: center;
    font-size: 3rem;
}
.people-content h2{
    text-align: left;
    line-height: 1.2;
}
.people-content h3{
    font-size: 2rem;
}
.people-content p{
    font-size: 1rem;
    margin: 2rem 0 2rem;
}
.socials a{
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 3rem;
    height: 3rem;
    background: transparent;
    border: .2rem solid var(--main-color);
    border-radius: 50%;
    font-size: 2rem;
    color: var(--main-color);
    margin: 1rem 1rem 1rem 0;
}
.about .people-content{
    height: 1100px;
}



/*-----------------------Research Tab------------------*/

.research h2{
    margin-bottom: 7rem;
}
.research-container{
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}
.research-container .research-box{
    flex: 1 1 25rem;
    background: var(--second-bg-color);
    padding: 2rem 2rem 2rem;
    border-radius: 2rem;
    text-align: center;
    border: .2rem solid var(--bg-color);
    transition: .5s ease;
}
.research-container .research-box:hover{
    border-color: var(--main-color);
    transform: scale(1);
}
.research-box h3{
    font-size: 2.4rem;
}
.research-box p{
    font-size: 1rem;
    margin: 1rem 0 3rem;
}




/*-----------------Publications Tab-----------------*/

.publications p{
    display: flex;
    align-items: justify;
}
.links a {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 2rem;
    height: 2rem;
    background: transparent;
    border: .2rem solid var(--main-color);
    border-radius: 50%;
    font-size: 1rem;
    color: var(--main-color);
    margin: 1rem 1rem 1rem 0;
    margin-left: 50%;
}



/*--------------------------Teaching Tab------------------------*/

.teaching{
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    background: var(--bg-color);
}
.teaching .heading{
    text-align: right;
    font-size: 2rem;
    margin: 5rem;
}
.teaching-content h2{
    text-align: right;
    line-height: 1.2;
}
.teaching-content h3{
    font-size: 2rem;
}
.teaching-content p{
    font-size: 1rem;
    margin: 2rem 0 2rem;
}





/*---------------------------------Contact Tab-------------------------------------*/


.contact{
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    background: var(--bg-color);
}
.contact .heading{
    text-align: center;
    font-size: 2rem;
    margin: 6rem;
}
.contact-content h2{
    text-align: center;
    line-height: 1.2;
}
.contact-content h3{
    font-size: 2rem;
}
.contact-content p{
    font-size: 1rem;
    margin: 2rem 0 2rem;
}

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

.footer{
    display: flex;
    justify-content: center;
    align-items: center;
    background: var(--text-color);
    flex-wrap: wrap;
    padding: 20px;
}
.footer-content{
    color: #011016;
}



/*------media---------*/

@media (max-width: 1200px) {
    html {
        font-size: 60%;
    }
}

@media (max-width: 991px) {
    .header {
        padding: 2rem 4%;
    }
    section {
        padding: 10rem 4% 2rem;
    }
    .footer {
        padding: 2rem 3%;
    }
}

@media (max-width: 768px) {

    .navbar {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    padding: 1rem 3%;
    background: var(--bg-color);
    border-top: .1rem solid rgba(0, 0, 0, .2);
    box-shadow: 0 .5rem 1rem rgba(0, 0, 0, .2);
    }
    .navbar a {
        display: block;
        font-size: 2rem;
        margin: 2rem 0;
    }
    .home {
        flex-direction: column;
    }
    .home-content h3 {
        font-size: 3rem;
    }
    .home-content h1 {
        font-size: 5rem;
    }
    .home-img img {
        width: 60vw;
        margin-top: 4rem;
    }
    .people {
        flex-direction: column-reverse;
    }
    .contact-heading h2 {
        display: none;
    }
    
}