* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Lucida Sans', 'Lucida Sans Regular', 'Lucida Grande', 'Lucida Sans Unicode', Geneva, Verdana, sans-serif;
    color: white;
}

body {
    min-width: 100%;
    min-height: 100vh;
    background-image: linear-gradient(to bottom, rgba(0,0,0,1) 0%,rgba(0,0,0,0) 30%,rgba(0,0,0,0) 70%,rgba(0,0,0,1) 100%), url(images/background.jpg);
    background-size: cover;
    background-attachment: fixed;
    position: relative;
}

header{
    display: flex;
    justify-content: space-evenly;
    height: 20vh;
    padding: 5vh 0;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 10;
}

a:hover {
    cursor: pointer;
}

.circle {
    width: 10vh;
    height: 10vh;
    background-color: #222;
    opacity: 1;
    background-size: cover;
    background-position: center;
    filter: grayscale(60%);
    transition: 300ms;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
}

.circle h1 {
    display: none;
    text-align: center;
}

.circle:hover{
    filter: grayscale(0);
    transform: scale(1.1);
    box-shadow: black 3px 3px;
}

.circle:hover h1{
    display: block;
    position: absolute;
    bottom: -40%;
    left: -50%;
    width: 200%;
}

#about {
    background-image: url('images/about.jpg')
}

#research {
    background-image: url('images/research.jpg')
}

#fieldwork {
    background-image: url('images/fieldwork.jpg')
}

#projects {
    background-image: url('images/projects.jpg')
}

#blog {
    background-image: url('images/blog.jpg')
}

.scroll{
    width: 100%;
    min-height: 100%;
    position: relative;
}
    
.center {
    min-height: 50vh;
    height: auto;
    width: 100%;
    margin-top: 30vh;
    display:flex;
    justify-content: center;

}

.centerleft {
    background-color: #222;
    opacity: .7;
    width: 60%;
    position: relative;
}

.centerleft::after {
    content: '';
    position: absolute;
    top: 0;
    right: -3vw;
    height: 100%;
    width: 3vw;
    clip-path: polygon(0 0, 100% 50%, 0 100%);
    background-color: #222;
}

.centerleft h1{
    text-align: center;
    padding: 50px;
}

.centerright {
    background-image: url(images/about.jpg);
    width: 40%;
    background-size: cover;
    background-position: center;
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%, 3vw 50%);
}

/*--------- SINGLE LINE
    
    .center {
    height: 20vh;
    width: 100%;
    margin-top: 15vh;
    position: relative;
    background-color: #222;
    opacity: .7;
    display:flex;
    flex-direction:column;
    justify-content: center;

    font-size: 10vh;
    text-align: center;
}

.center::after {
        content: '';
        position: absolute;
        left: 42%;
        bottom: -4vh;
        height: 4vh;
        width: 16%;
        clip-path: polygon(100% 0, 0 0, 50% 100%);
        background-color: #222;
}---------------*/


footer{
    position: fixed;
    bottom: 0;
    display: flex;
    z-index: 10;

}

.footer-field{
    padding: 10px 20px;
}


/*-----------IMPRESSUM------------*/

.impressum{
    position: relative;
    width: 60%;
  //  height: 60vh;
    margin: 30vh auto 0 auto;
    padding: 25px;
    background-color: #222;
    z-index: 99;
  //  overflow: scroll;
}

.impressum h1,h3, p{
    padding: 0 0 20px 0;
}

.impressum h2, h3{
    color: darkslategray;
    padding: 30px 0 20px; 0;
}