.mental-menu h3{color:#087cb6;margin-top:28px}.mental-menu .rhythm-level>b{font-size:20px;white-space:nowrap;min-width:54px}.addition-screen[data-mental-operation] .addition-heading h2{font-size:clamp(20px,4vw,29px);line-height:1.4}.addition-screen[data-mental-operation] .addition-equation{gap:clamp(6px,2vw,14px);font-size:clamp(23px,6vw,40px);padding:18px 8px;font-variant-numeric:tabular-nums}.addition-screen[data-mental-operation] .addition-equation>span{font-size:clamp(18px,4vw,26px)}.addition-screen[data-mental-operation] .addition-mystery{min-width:36px;height:48px}.addition-screen[data-mental-operation] .addition-answer{width:140px;max-width:45%}@media(max-width:420px){.addition-screen[data-mental-operation] .addition-equation{font-size:26px;gap:7px}.addition-screen[data-mental-operation] .addition-mystery{min-width:32px;height:42px}.addition-screen[data-mental-operation] .addition-answer{width:125px}}