/* Larger, slightly wider playfield; quieter header action strip. */
.topbar{height:clamp(40px,5.5vh,46px)}.brand{font-size:clamp(15px,1.85vw,21px)}
.top-actions{gap:3px}.top-actions button{height:clamp(26px,3.6vh,32px);min-width:clamp(33px,3.9vw,43px);padding:2px 4px;border-radius:7px;font-size:clamp(13px,1.4vw,16px)}.top-actions span{font-size:clamp(8px,.9vw,10px);margin-left:1px}
.board{height:calc(100% - 92px);aspect-ratio:1/1.78}
@media(max-width:720px){.topbar{height:34px}.brand{font-size:13px}.top-actions{gap:1px}.top-actions button{height:23px;min-width:23px;padding:1px;font-size:12px}.top-actions span{display:none}.board{height:calc(100% - 70px);aspect-ratio:1/1.75}}
@media(max-height:640px) and (min-width:721px){.topbar{height:35px}.top-actions button{height:23px;font-size:12px}.board{height:calc(100% - 78px)}}