@media (max-width: 767px) {
    h1 {
        font-size: 29px;
    }

    #uvitani header {
        top: 50px;
        text-align: center;
    }

    #uvitani header a {
        transform: translateX(-50%);
    }
}

@media (min-width: 768px) {
    h1 {
        font-size: 50px;
    }

    #uvitani header {
        top: 50%;
        transform: translateY(-50%);
        text-align: left;
    }
}

#soudruh-uljanov {
    z-index: 2;
    position: fixed;
    left: 19px;
    bottom: 91px;
    display: flex;
    align-items: center;
    background: #fffdd1;
    padding: 5px;
    border-radius: 50px;
    border: solid red 1px;
}

video {
    max-width: inherit;
}

main section {
    padding: 0;
    width: 100%;
}

main section div {
    max-width: min(100%, 1140px);
    margin: auto;
}

#uvitani {
    height: 499px;
    background-size: cover;
}

#uvitani header {
    max-width: min(100%, 1140px);
    margin: auto;
    position: relative;
}

.udaj {
    display: flex;
    flex-basis: 0;
    flex-grow: 1;
    flex-direction: column;
}

.udaj span {
    line-height: 1.5;
}

#znarodneni .udaj input,
#znarodneni .udaj textarea {
    padding: .5rem 1rem;
    border-radius: 5px;
    width: 100%;
    border: 1px solid #666;
    font-size: 1rem;
    line-height: 1.5;
}

#formular>div {
    margin-bottom: 1.75em;
}

.ruda_hvezda {
    color: red;
}

#pozadídialogu {
    width: 100%;
    height: 100%;
    position: fixed;
    background: url(https://upload.wikimedia.org/wikipedia/commons/2/22/Hammer_and_sickle_black_large_on_transparent.svg), linear-gradient(180deg, rgba(155, 42, 42, 1) 0%, rgba(221, 224, 0, 1) 50%, rgba(105, 2, 2, 1) 100%);
    background-position: center;
    background-repeat: no-repeat;
    z-index: 1000;
    top: 0;
}

#dialog {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-family: 'Fira Sans', sans-serif;
    font-style: normal;
    z-index: 2;
    background: #ffffffd9;
    padding: 20px;
    border-radius: 10px;
    border: solid 1px darkred;
}

button:hover button:after {
    content: "test";
}