html, body {
    background-color: #14181c;
    margin: 0;
}

.column.is-main-content {
    background-color: hsl(221, 14%, 100%);
    border-radius: 0.75rem;
    min-height: 630px;
    position: relative;
}

.upper-menu {
    display: flex;
    align-items: center;
}

.upper-menu.is-centered {
    justify-content: center;
}

@media screen and (max-width: 1215px) {
    
    .is-hidden-until-widescreen {
        display: none !important;
    }

    .is-full-until-widescreen {
        width: 100%;
        flex: none;
    }
    
}

@media screen and (min-width: 769px) {

    html, body {
        height: 100%;
        overflow: hidden;
    }
    
    .is-fullheight {
        height: 100%;
    }

    .is-fullheight-1 {
        height: calc(100% - 1rem);
    }

    .upper-menu {
        justify-content: space-between;
    }
    
}

@media screen and (max-width: 768px) {

    .upper-menu {
        flex-direction: column;
        gap: 10px;
        align-items: center;
    }

}

.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    background-color: #14181c;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.preloader p {
    text-align: center;
    margin-left: 0.75rem;
    margin-right: 0.75rem;
}



@media screen and (max-height: 800px) {

    html, body {
        overflow: auto !important;
    }

    .is-fullheight {
        height: auto !important;
    }

    .is-fullheight-1 {
        height: calc(100% - 1rem);
    }

}

.centered-message {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}