html,
body {
    margin: 0;
    padding: 0;

    cursor: default;

    user-select: none;

    scroll-behavior: smooth;

    background-color: #101010
}

.OnlyPC {
    @media (max-width: 1239px) {
        display: none !important;
        width: 0px !important;
        height: 0px !important;
    }
}

.Video.OnlyPC {
  position: relative; /* нужно, чтобы кнопка позиционировалась внутри */
}

.sound-btn {
  position: absolute;
  right: 20px;
  bottom: 20px;
  width: 50px;
  height: 50px;
  display: grid;
  place-items: center;
  border: none;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.55);
  color: #fff;
  cursor: pointer;
  z-index: 9999;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  transition: background 0.2s ease;
}

.sound-btn:hover {
  background: rgba(0, 0, 0, 0.75);
}


.OnlyMobile {
    @media (min-width: 1240px) {
        display: none !important;
        width: 0px !important;
        height: 0px !important;
    }
}

#MottoSection .Video.OnlyMobile { position: relative; }

#MottoSection .Video.OnlyMobile .sound-btn-mobile{
  position: absolute;
  right: 16px;
  bottom: 16px;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 999px;
  background: rgba(0,0,0,.55);
  color: #fff;
  cursor: pointer;
  z-index: 9999;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  transition: background .2s ease;
}
#MottoSection .Video.OnlyMobile .sound-btn-mobile:hover{ background: rgba(0,0,0,.75); }
.Hidden {
    display: none !important;
    width: 0px !important;
    height: 0px !important;
}

.Anime {
    visibility: hidden;
}

.EntireAnime {
    visibility: hidden;
}

.AnimeGroup {
    visibility: hidden;
}

@keyframes EasyAppear {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.SectionContainer {
    flex-direction: column;

    display: flex;

    margin-left: 5px;
    margin-right: 5px;
}

.SectionViewport {
    /*display: flex;*/
    /*flex-direction: column;*/

    position: relative;

    width: calc(100% - 10px);
    max-width: 1200px;

    height: 100%;

    margin-left: auto;
    margin-right: auto;
}

body {
    transform-origin: top;
    width: 100%;
    overflow-x: hidden;
}

#FooterSection {
    background-color: #2f2f2f;

    @media (max-width: 1239px) {
        background-color: #2f2f2f;
    }

    .Section {
        @media (max-width: 1239px) {
            background-color: #2f2f2f;
        }
    }

    .SectionViewport {
        background-color: #2f2f2f;
    }
}