@mixin box_shadow($level) {
    @if $level == 1 {
        box-shadow: 0px 4px 8px rgba(0, 0, 0, 0.04), 0px 0px 2px rgba(0, 0, 0, 0.06), 0px 0px 1px rgba(0, 0, 0, 0.04);
    } @else if $level == 2 {
        box-shadow: 0px 10px 20px rgba(0, 0, 0, 0.04), 0px 2px 6px rgba(0, 0, 0, 0.04), 0px 0px 1px rgba(0, 0, 0, 0.04);
    } @else if $level == 3 {
        box-shadow: 0px 10px 20px rgba(0, 0, 0, 0.04), 0px 2px 6px rgba(0, 0, 0, 0.04), 0px 0px 1px rgba(0, 0, 0, 0.04);
    } @else if $level == 4 {
        box-shadow: 0px 24px 32px rgba(0, 0, 0, 0.04), 0px 16px 24px rgba(0, 0, 0, 0.04),
            0px 4px 8px rgba(0, 0, 0, 0.04), 0px 0px 1px rgba(0, 0, 0, 0.04);
    }
}