* {
    -moz-box-sizing: border-box;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 20px;
    min-width: 800px;
    font-size: 15px;
    font-weight: 400px;
    line-height: 1.45;
    font-family: 'Open Sans', sans-serif;
    background-color: #232321;
}

a,
body {
    color: #ffffff;
}

a {    
    text-decoration: none;
}

img {
    vertical-align: top;
    max-width: 100%;
    height: auto;
}

p,
ul,
ol,
.video {
    margin: 20px 0;
}

sub {
    font-size: 11px;
}

.small {
    font-size: 14px;
}

.clear:after {
    content: ' ';
    display: table;
    clear: both;
}

/**
 * Site header
 */
.site-header {
    position: absolute;
    z-index: 4;
    padding: 18px 20px;
    width: 245px;
    background-color: rgba(0,0,0,.7);
    color: rgb(255,255,255);
}

.site-title {
    margin: 0 auto 5px auto;
}

html[lang='en'] .site-title {
    width: 100%;
}

html[lang='de'] .site-title {
    width: 95%;
}

.site-subtitle {
    margin: 0;
    font-size: 13px;
    text-align: center;
    font-weight: 300;
}

.site-title a,
.site-subtitle a {
    color: inherit;
}

.site-nav {
    margin-top: 52px;
    margin-bottom: 30px;
    font-size: 14px;
}

.site-nav-link {
    display: block;
    color: #9C9C9C;
    padding: 15px 0;
    border-bottom: solid 1px #3F4144;
}

.site-nav-link:hover {
    color: #ffffff;
    border-color: #ffffff;
}

.site-language-link {
    color: #808080;
}

.site-language-link:hover {
    color: #ffffff;
}

/**
 * Site main
 */
.site-main {
    display: block;
    margin-left: 265px;
    max-width: 880px;
}

@media screen and (min-device-width: 800px) and (min-width: 800px) {

    .site-header {
        position: fixed;
    }

}

/**
 * Content
 */
.content {
    position: relative;
    padding: 18px 20px;
    font-size: 15px;
    font-weight: 300;
    background-color: rgba(0,0,0,.7);
}

.content-heading {
    font-size: 20px;
    font-weight: 500;
    padding-bottom: 13px;
    border-bottom: solid 1px #404245;
    margin: 0 0 20px 0;
}

.content-subheading {
    font-size: inherit;
    font-size: 18px;
    font-weight: 600;
    margin: 40px 0 0 0;
}

.content-subheading + p {
    margin-top: 10px;
}

.content-text {
    padding-right: 20px;
}

.content-button {
    position: relative;
    display: block;
    background-color: #ffcc3b;
    color: #000000;
    text-align: center;
    padding: 10px;
    margin-top: 20px;
    width: 200px;
}

.content-button:hover {
    background-color: #ffffff;
    -webkit-box-shadow: 0px 2px 0px #4C4E52;
    -moz-box-shadow: 0px 2px 0px #4C4E52;
    box-shadow: 0px 2px 0px #4C4E52;
}

.content-footer {
    display: block;
    padding-top: 100px;
    font-size: 13px;
    font-weight: 500;
    color: #888888;
}

.content-footer a {
    color: #cccccc;
}

/**
 * Contact
 */
.contact-details {
    margin: 30px 0 30px 0;
}

.contact-vatid {
    margin: 40px 0 0 0;
}

.contact-email,
.contact-address,
.contact-phone {
    display: inline-block;
    vertical-align: top;
    padding: 0 34px;
}

.contact-email::before,
.contact-address::before,
.contact-phone::before {
    content: '';
    display: inline-block;
    vertical-align: top;
    background-size: 100%;
    width: 22px;
    height: 22px;
    margin-right: 10px;
    margin-left: -34px;
}

.contact-email::before {
    background-image: url(../images/contact-email.png);
}

.contact-address::before {
    background-image: url(../images/contact-address.png);
}

.contact-phone::before {
    background-image: url(../images/contact-phone.png);
}

.about-image {
    float: right;
    margin-left: 20px;
    margin-right: -20px;
}

/**
 * Video projects
 */
.video-projects {
    list-style: none;
    padding: 0;
    margin: -10px;
    max-width: 860px;
}

.video-project {
    display: inline-block;
    vertical-align: top;
    padding: 10px;
    padding-bottom: 6px;
    width: 50%;
}

.video-project-link {
    position: relative;
    display: block;
    border-bottom: 4px solid transparent;
}

.video-project-link:hover {
    border-color: #ffcc3b;
}

.video-project-title {
    position: absolute;
    bottom: 0;
    display: block;
    width: 100%;
    padding: 8px 10px;
    background-color: #ffffff;
    font-size: 15px;
    font-weight: 700;
    color: #333333;
    opacity: .86;
}

.video-project-image {
    width: 100%;
    height: auto;
}

/**
 * Video
 */
.video {
    position: relative;
    display: block;
    width: 100%;
}

.video > iframe {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
}

.password-form {
    margin-bottom: 40px;
}

/**
 * Backgrounds
 */
body {
    background-image: none;
    background-size: cover;
    background-position: top left;
    background-repeat: no-repeat;
    background-attachment: fixed;
}

.body-home {
    background-image: url(../images/background-home.jpg);
}


.body-about {
    background-image: url(../images/background-about.jpg);
}

.body-contact {
    background-image: url(../images/background-contact.jpg);
}

.body-audio {
    background-image: url(../images/background-audio.jpg);
}

.body-video {
    background-image: url(../images/background-video.jpg);
}

.body-video-kosmische-netze {
    background-image: url(../images/background-kosmische-netze.jpg);
}

.body-video-biogas {
    background-image: url(../images/background-bio.jpg);
}

.body-video-erste-galaxien {
    background-image: url(../images/background-erste-galaxien.jpg);
}

.body-video-experiment {
    background-image: url(../images/background-experiment.jpg);
}

.body-video-fledermause {
    background-image: url(../images/background-fledermause.jpg);
}

.body-video-showdown-galaxis {
    background-image: url(../images/background-showdown-galaxis.jpg);
}

.body-video-konnektom {
    background-image: url(../images/background-konnektom.jpg);
}

.body-video-girls {
    background-image: url(../images/background-girls.jpg);
}

.body-video-dicke-luft {
    background-image: url(../images/background-dicke-luft.jpg);
}

.body-video-meereis {
    background-image: url(../images/background-meereis.jpg);
}

.body-video-ozean {
    background-image: url(../images/background-ozean.jpg);
}

.body-video-schwefelbakterien {
    background-image: url(../images/background-schwefelbakterien.jpg);
}

.body-video-supernovae {
    background-image: url(../images/background-supernovae.jpg);
}

.body-video-bioturbation {
    background-image: url(../images/background-bioturbation.jpg);
}

.body-video-wind {
    background-image: url(../images/background-wind.jpg);
}