:block(checkbox):mod(theme islands) {
    :block(checkbox):elem(box) {
        background: #cbcbcb;

        &:after {
            top: -4px;

            filter: unquote('alpha(opacity=0)');
        }
    }

    :block(checkbox):elem(control) {
        outline: none;

        filter: unquote('alpha(opacity=0)');
    }

    &:block(checkbox):mod(checked) :block(checkbox):elem(box) {
        background: #ccbd80;

        &:before {
            content: ' ';
        }

        &:after {
            content: ' ';

            filter: unquote('alpha(opacity=100)');
        }
    }

    &:block(checkbox):mod(hovered) {
        :block(checkbox):elem(box) {
            background: #b3b3b3;
        }

        &:block(checkbox):mod(checked) :block(checkbox):elem(box) {
            background: #b2a265;
        }
    }

    &:block(checkbox):mod(focused):block(checkbox) {
        :block(checkbox):elem(box) {
            background: #fc0;
        }
    }

    &:block(checkbox):mod(disabled) {
        :block(checkbox):elem(box) {
            background: #ebebeb;
        }

        &:block(checkbox):mod(checked) :block(checkbox):elem(box):after {
            background-position: 0 100%;
        }
    }

    @each $size in m, l {
        &:block(checkbox):mod(size $size) :block(checkbox):elem(box):after {
            background-image: url('tip_size_$(size).png');
        }
    }
}