body {
    font-family: 'Open Sans', sans-serif;
    background-color: #20211c;
    color: white;
    padding-top: 8em;
}

a, a:visited {
    color: #7b9ad1;
}
a:hover, a:active {
    color: white;
}

body > header {
    margin: auto;
    display: flex;
    justify-content: center;
    width: 80%;
    max-width: 1024px;
    margin-bottom: 4em;
}

@media (max-width: 768px) {
    body > header {
        flex-direction: column;
    }
}

body > header a {
    font-size: 18pt;
    min-width: 136px;
    text-align: center;
    border-radius: 6px;
    margin: 5px 10px;
    padding: 5px;
}

body > header a:hover {
    background-color: #7b9ad1;
    color: #20211c;
}

body > footer {
    margin: auto;
    width: 80%;
    max-width: 1024px;
    display: flex;
    justify-content: flex-start;
}

body > footer a {
    margin: 5px 10px;
    padding: 5px;
    font-size: 16pt;
}

body > footer a:first-child {
    margin-left: 0;
}


body > footer .copyright {
    margin: 5px 10px;
    padding: 5px;
    font-size: 16pt;
}


body > main {
    margin-top: 12px;
}

main {
    position: relative;
}


.intro {
    width: 80%;
    max-width: 1024px;
    margin: auto;
}

.intro p {
    font-size: 16pt;
    line-height: 1.5;
    margin-bottom: 1.5em;
}

.talks {
    width: 80%;
    max-width: 1024px;
    margin: auto;
}

.talks > h1 > a {
    font-size: 20pt;
}

.talks > p {
    padding-top: 1em;
}

.avatar {
    width: 172px;
    height: 172px;
    overflow: hidden;
    border-radius: 50%;
    margin: auto;
    background-image: url("/images/avatar-small.png");
    background-size: auto 172px;
}


.intro .avatar {
    margin-bottom: 24px;
}

canvas[resize] {
    width: 100%;
    height: 100%;
}

#cluster {
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    z-index: -10000;
}