.first {
    background-attachment: fixed;
    background-position: center;
    background-size: cover;
}
/*@media (max-width: 8500px) {*/
/*    .first {*/
/*        background-image: url("../src/pictures/section_first1.jpg");*/
/*        height: 100%;*/
/*    }*/

/*}*/
/*@media (max-width: 480px) {*/
/*    .first {*/
/*        background-image: url("../src/pictures/section_first_mob.jpg");*/
/*        max-width: 480px;*/
/*    }*/
/*}*/

/* Extra small devices (phones, 600px and down) */
@media only screen and (max-width: 600px) {
    .first {
        background-image: url("../src/pictures/section_first_mob.jpg");}
}

/* Small devices (portrait tablets and large phones, 600px and up) */
@media only screen and (min-width: 600px) {
    .first {
        background-image: url("../src/pictures/section_first_mob.jpg"); }
}

/* Medium devices (landscape tablets, 768px and up) */
@media only screen and (min-width: 768px) {
    .first {
        background-image: url("../src/pictures/section_first1.jpg");}
}

/* Large devices (laptops/desktops, 992px and up) */
@media only screen and (min-width: 992px) {
    .first {
        background-image: url("../src/pictures/section_first1.jpg");}
}

/* Extra large devices (large laptops and desktops, 1200px and up) */
@media only screen and (min-width: 1200px) {
    .first {
        background-image: url("../src/pictures/section_first1.jpg");}
}

/*@media (device-height : 568px)*/
/*and (device-width : 320px)*/
/*and (-webkit-min-device-pixel-ratio: 2){*/
/*    .first {*/
/*        background-image: url("../src/pictures/section_first_mob.jpg");*/
/*        height: 100%;*/
/*    }*/

/*}*/


.pozadie {
    background-color: rgba(41,43,44,0.9) !important;
}
.sekcia-first-prekrytie {
    background-color: rgba(41,43,44,0.8) !important;
}

/*test*/
.posun {
    position: relative;
    top: 0;
    left: 0;
}
.image1 {
    position: relative;
    top: 0;
    left: 0;
    border: 1px red solid;
}
.image2 {
    position: absolute;
    top: 30px;
    left: 30px;
    border: 1px green solid;
}
.paticka {
    position: fixed;
    bottom: 0;
    width: 100%;
}
.row {
    display: flex;
    flex-wrap: wrap;
    padding: 0 4px;
}

/* Create four equal columns that sits next to each other */
.column {
    flex: 25%;
    max-width: 33.3%;
    padding: 0 4px;
}

.column img {
    margin-top: 8px;
    vertical-align: middle;
    width: 100%;
    filter: grayscale(1) brightness(0.5);
    border-radius: 5px;
    cursor: pointer;
    transition: 0.3s linear;
}
.column img:hover {
    filter: grayscale(0);
}
@media screen and (max-width: 800px) {
    .column {
        flex: 50%;
        max-width: 50%;
    }
}

/* Responsive layout - makes the two columns stack on top of each other instead of next to each other */
@media screen and (max-width: 600px) {
    .column {
        flex: 100%;
        max-width: 100%;
    }
    .column img {
        filter: grayscale(0) brightness(1);
    }
}

#modalHeaderBg{
    background-color: #b57dfb;
}

#full-img {
    background-image: url("../src/pictures/zeny2020_1.jpg");
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

.video-container {
    overflow: hidden;
    position: relative;
    width:100%;
}

.video-container::after {
    padding-top: 56.25%;
    display: block;
    content: '';
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}
.section2021 {
    background-color: #212121;
    height: 75vh;
    }