.bg {
  height: 100%;

  background-color: var(--theme-background-color);
  background-position: center;
  background-repeat: no-repeat;
  background-size: 100% 100%;

  @media (max-width: 600px) {
    height: calc(var(--vh, 1vh) * 100);
  }

  :global(html.theme-light) & {
    background-image: url('../../assets/chat-bg-br.png');
  }

  &::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background-image: url('../../assets/chat-bg-pattern-light.png');
    background-position: top right;
    background-size: 510px auto;
    background-repeat: repeat;
    mix-blend-mode: overlay;

    :global(html.theme-dark) & {
      background-image: url('../../assets/chat-bg-pattern-dark.png');
      mix-blend-mode: unset;
    }

    @media (max-width: 600px) {
      bottom: auto;
      height: calc(var(--vh, 1vh) * 100);
    }
  }
}

.mask {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  margin: 0 auto;
  width: 100%;
  height: 100%;
  z-index: var(--z-ui-loader-mask);
  display: flex;
}

.main {
  flex: 1;

  @media (min-width: 926px) {
    display: grid;
    grid-template-columns: auto 1fr;
    grid-template-rows: 100%;
  }
}

.left {
  flex: 1;
  background: var(--color-background);
  min-width: 16rem;
  width: 33vw;
  max-width: 26.5rem;
  height: 100%;

  @media (min-width: 926px) {
    max-width: 40vw;
  }

  @media (min-width: 1276px) {
    width: 25vw;
    max-width: 33vw;
  }

  @media (max-width: 1275px) {
    flex: 2;
  }

  @media (max-width: 925px) {
    width: 26.5rem !important;
  }

  @media (max-width: 600px) {
    max-width: none;
    width: 100vw !important;
  }
}

.middle {
  flex: 3;
  border-left: 1px solid var(--color-borders);
  position: relative;
  z-index: 1;
  overflow: hidden;
  background-size: cover !important;

  @media (max-width: 1275px) {
    border-right: none;
  }

  @media (max-width: 600px) {
    display: none;
  }
}

.right {
  position: absolute;
  top: 0;
  right: 0;
  z-index: 1;
  height: 100%;
  width: var(--right-column-width);
  border-left: 1px solid var(--color-borders);
  background: var(--color-background);
}

.blank {
  flex: 1;
  background-color: var(--color-background);
}