:root{
    --black: rgb(13,12,10);
    --white_lines: rgb(66, 65, 65);
    --orange: rgb(255, 113, 91);
    --darkBlue: rgb(0, 0, 41);
    --nav_height: 70px;
    --font_size: 18px;
    --small_margin: 35px;
}
*{
    padding: 0;
    margin: 0;
    font-size: var(--font_size);
    font-family: monospace;
    color: var(--white);
    cursor: default;
}
body{
    font-size: 18px;
    width: 100%;
    background-color: var(--black);
    overflow-y: scroll;
    overflow-x: hidden;
}
body::-webkit-scrollbar {
    display: none;
}
#bozon_media, #background_image_bottom {
    width: 100%;
    height: 60vh; 
    overflow: hidden;
    position: absolute;
    top: 0;
    left: 0;
    z-index: -1;
}

#bozon_media img, #background_image_bottom img {
    width: 100%;
    height: 100%; 
    object-fit: cover; 
    object-position: center bottom; 
}
#background_image_bottom{
    bottom: 0;
    z-index: 20;
}
#background_image_bottom img{
    rotate: 180deg;
}
#main{
    width: calc(100% - 1px - var(--nav_height));
}
.bozon_introduction{
    width: 90%;
    padding-top: 20vh;
    margin-left: var(--nav_height);
    display: block;
    border-left: 1px solid var(--white_lines);
}
.down_arrow{
    color: var(--white);
    position: absolute;
    left: calc(var(--nav_height)/2 - var(--font_size)/2);
    top: 20vh;
    font-size: 2em;
}
#topName, #topName strong{
    font-size: 4vw;
    color: var(--white);
}
#intro {
	margin-right: var(--nav_height);
	margin-left: var(--nav_height);
	border-left: 1px solid var(--white_lines);
}
#intro h2{
    margin-left: auto;
    text-align: center;
}
#media{
    min-height: 50vh;
    position: relative;
	background: var(--black);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 3vh 0 9vh 0;
    margin-left: var(--nav_height);
	margin-right: var(--nav_height);
	border-left: 1px solid var(--white_lines);
}
#media p a{
    color: var(--white);
    font-size: 2vw;
    padding: 1rem 0.5rem 1rem 2.5rem;
    display: flex;
    flex-direction: row;
    align-items: center;
    width: 25vw;
    border: 1px solid var(--white);
    border-radius: 4px;
    margin: 1rem 0;
}
#media p a img{
    margin-right: 3vw;
    width: 3vw;
}
#media p a:hover{
    text-shadow: 0.3rem 0px 3px blue, -0.3rem 0px 3px var(--orange);
    opacity: 1;
    color: white;
}
#media p a:hover img{
    filter: drop-shadow(0.3rem 0px 3px blue) drop-shadow(-0.3rem 0px 3px var(--orange));
    opacity: 1;
    color: white;
}
.kont-spacer:hover{
    text-shadow: 0.3rem 0px 3px blue, -0.3rem 0px 3px var(--orange);
}
footer{
    display: block;
    position: relative;
    width: 100%;
    padding-bottom: 1rem;
    background-image: url("background/footer_background.png");
}
footer .flex-container{
    display: flex;
    flex-direction: row;
    width: 100%;
}
footer .flex-child{
    flex: 1;
}
footer h3{
    padding: calc(0.7*var(--nav_height)) 0 calc(0.3*var(--nav_height)) 0;
    font-size: 1.5rem;
    color: var(--black);
}
footer h4{
    padding: calc(0.7*var(--nav_height)) 0 calc(0.3*var(--nav_height)) 0;
    font-size: 1.5rem;
    color: var(--black);
    margin-left: auto;
}
footer .media1{
    padding: 0 var(--nav_height);
    display: flex;
    flex-direction: row;
    align-items: center;
}
footer .media1 p{
    margin-left: auto;
}
footer .media1 a{
    color: var(--black);
    font-size: 1.3rem;
    padding: 0.5rem 0 0.5rem 0.5rem;
    text-decoration: none;
}
footer .media{
    padding: 0 var(--nav_height);
    display: flex;
    flex-direction: row;
    align-items: center;
}
footer .media p a{
    color: var(--black);
    font-size: 1.3rem;
    padding: 1rem 0.5rem 1rem 0.5rem;
    margin-right: 1.5rem;
    display: flex;
    flex-direction: row;
    align-items: center;
}
footer .media p a img{
    margin-right: 0.5rem;
}
footer .media p a:hover{
    text-shadow: 0.3rem 0px 3px blue, -0.3rem 0px 3px var(--orange);
    opacity: 1;
    color: white;
}
footer .media p a:hover img{
    filter: drop-shadow(0.3rem 0px 3px blue) drop-shadow(-0.3rem 0px 3px var(--orange));
    opacity: 1;
    color: white;
}
footer .media1 p a:hover{
    text-shadow: 0.3rem 0px 3px blue, -0.3rem 0px 3px var(--orange);
    opacity: 1;
    color: white;
}
.credits{
    width: 100%;
    margin: 1rem auto;
    margin-top: 12vh;
    font-size: 0.2rem;
    font-weight: 100;
    text-align: center;
    display: block;
}
/*responsive-website*/
@media screen and (max-width: 1350px) {
    .bozon_introduction{
    padding-top: 15vh;
    }
    footer .media p a{
        font-size: 1.1rem;
    }
    footer h3{
        font-size: 1.3rem;
    }
    footer .media1 p a{
        font-size: 1.1rem;
    }
    footer h4{
        font-size: 1.3rem;
    }
}
@media screen and (max-width: 1250px) {
    .description p{
        margin-left: 1vw;
        margin-right: 5vw;
    }
}

@media screen and (max-width: 1150px) {
    #media {
        padding: 5vh 0 10vh 0;
    }
    #media p a{
        width: 30vw;
        font-size: 3vw;
    }
    #media p a img{
        margin-right: 4vw;
        width: 4vw;
    }
    #topName, #topName strong{
        font-size: 5vw;
    }
    footer .media{
        flex-direction: column;
    }
}
@media screen and (max-width: 900px) {
    #media {
        padding: 5vh 0 5vh 0;
    } 
    #media p a{
        width: 35vw;
        font-size: 3.5vw;
    }
    #media p a img{
        margin-right: 4.5vw;
        width: 4.5vw;
    }    
    #topName, #topName strong{
        font-size: 7vw;
    }
    footer .media p a{
        font-size: 1.3rem;
        margin-right: 0;
    }
    footer h3{
        font-size: 1.8rem;
    }
    footer{
        background-image: url("background/footer_background_mobile.png");
    }
    footer .media1 p{
        margin: auto;
    }
    footer .media1 p a{
        font-size: 1.3rem;
        margin: auto;
    }
    footer h4{
        font-size: 1.8rem;
        margin: auto;
    }
    footer .flex-container{
        flex-direction: column;
        align-items: center;
    }
}
@media screen and (max-width: 800px) {
    #media p a{
        width: 40vw;
        font-size: 4vw;
    }
    #media p a img{
        margin-right: 5vw;
        width: 5vw;
    }
    #shortIntroduction{
        width: 80%;
        padding:2rem 1rem 4rem 1rem;

    }
    #seminarium h2{
        font-size: 6rem;
        margin: 0 auto;
    }
    #seminarium marquee{
        font-size: 7rem;
        top: -49px;
    }
    .zarzad p{
        width: calc(100% - 2rem);
        margin: 0;
    }
    .zarzad .kont-spacer{
        margin-bottom: 1rem;
    }
}
@media screen and (max-width: 750px) {
    .about_us{
        display: block;
    }
    .about_us .section_title{
        padding-bottom: 0;
    }
    .description{
        margin-left: var(--nav_height);
    }
    .description p{
        margin-right: 1rem;
    }
}
@media screen and (max-width: 680px) {
    #seminarium h2{
        font-size: 5.2rem;
    }
    #seminarium marquee{
        font-size: 6rem;
        top: -43px;
    }
    #seminarium h3{
        padding-top: 4rem;
        font-size: 1.4rem;
    }
}
@media screen and (max-width: 570px) {
    #topName, #topName strong{
        font-size: 8vw;
    }
    #seminarium h2{
        font-size: 4.3rem;
        top:-25px;
    }
    #seminarium marquee{
        font-size: 5rem;
        top: -39px;
    }
}
@media screen and (max-width: 450px) {
    body{
        font-size: 12px;
    }
    .bozon_introduction{
        margin-left: var(--small_margin);
        min-height: none;
        padding-top: 10vh;
    }
    .about_us{
        margin-bottom: 5vh;
    }
    .section_title{
        margin-left: var(--small_margin);
        padding-top: 5vh;
    } 
    .description{
        margin-left: var(--small_margin);
        padding-top: 5vh;
    }
    #seminarium aside{
        margin-left: var(--small_margin);
    }
    #seminarium h2{
        left: calc(var(--small_margin) + 1rem);
        font-size: 3rem;
        top: -16px;
    }
    #seminarium marquee{
        font-size: 4rem;
        top: -33px;
    }
    #kontakt h2{
        font-size: 3rem;
        top: -16px;
    }
    #kontakt .zarzad{
        margin-top: 4rem;
        padding-left: var(--small_margin);
    }
    footer .media{
        padding-left: var(--small_margin);
    }
}
@media  screen and (max-width: 360px) {
    .zarzad p a{
        font-size: 0.8rem;
    }
}
@media screen and (orientation: portrait){
    html {
        overflow-x: hidden;
    }
    footer h3 {
        text-align: center;
    }
    #topName, #topName strong{
        font-size: 12vw;
    }
    #media {
        padding: 5vh 0 5vh 0;
        margin-left: 0;
	    margin-right: 0;
        border-left: none;
    }
    #media p a{
        width: 70vw;
        font-size: 7vw;
    }
    #media p a img{
        margin-right: 7vw;
        width: 8vw;
    }
}