html,
body {
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
    background-color: #000;
}

:root {
    --animate-delay: 0.2s;
}

.row,
.container-fluid {
    height: 100% !important;
}

.start,
.center,
.end {
    display: flex;
    width: 100%;
    min-height: 100%;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    align-items: center;
    justify-items: center;
    justify-content: center;
    padding-top: 100px;
    padding-bottom: 100px;
}

.start {
    background-image: url(./img/sirek01.jpg);
    height: 100%;
    padding: 0;
}

.start .wrapper {
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    justify-items: center;
    align-items: center;
}

.start .wrapper div {
    width: 80%;
    max-width: 350px;
    height: 70%;
    display: flex;
    flex-wrap: wrap;
    align-content: space-between;
    justify-content: flex-start;
}

.start .wrapper div img:first-of-type {
    max-width: 100%;
    max-height: 30dvh;
    margin-bottom: 5dvh;
}

.start .wrapper div img:nth-of-type(2) {
    max-width: 90%;
    max-height: 10dvh;
    margin-bottom: 5dvh;

}

.start .wrapper div img:nth-of-type(3) {
    max-width: 100%;
    max-height: 30dvh;
}

.center {
    background-image: url(./img/sirek02.jpg);
    height: 100%;
    padding: 0;
}

.center .wrapper {
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    justify-items: center;
    align-items: center;
}

.center .wrapper div {
    width: 80%;
    max-width: 350px;
    height: 70%;
    display: flex;
    align-items: flex-end;
    align-content: flex-end;
    flex-wrap: wrap;
}

.center .wrapper div a {
    transition: background-color .3s ease-in-out;
    background-color: transparent;
    width: 100%;
}

.center .wrapper div a:first-of-type {
    margin-bottom: 10px;
}

.center .wrapper div a:last-of-type {
    margin-bottom: 5dvh;
}

.center .wrapper div a:hover {
    transition: background-color .3s ease-in-out;
    background-color: rgba(255, 255, 255, 0.4);
}


.center .wrapper div a img {
    width: 100%;
    max-height: 100%;
}


.end {
    background-image: url(./img/sirek03.jpg)
}

@media (max-width: 767px) {

    .center .wrapper,
    .start .wrapper {
        min-height: 100dvh !important;
    }
}