.game-shell{margin-top:2rem}.game-hud{display:flex;justify-content:space-between;gap:1rem;background:var(--night);color:white;border-radius:18px 18px 0 0;padding:1rem 1.25rem;font-size:clamp(1rem,3vw,1.35rem)}.game-stage{position:relative;height:min(58vh,520px);min-height:390px;overflow:hidden;background:linear-gradient(#8fc8cd 0 58%,#d4a960 58% 72%,#425f4e 72%);border:4px solid var(--night);outline-offset:4px}.sun{position:absolute;right:10%;top:10%;width:90px;height:90px;border-radius:50%;background:var(--sun);box-shadow:0 0 0 16px rgba(243,199,70,.22)}.game-stage:before{content:"";position:absolute;left:0;right:0;bottom:105px;height:60px;background:repeating-linear-gradient(115deg,#174a38 0 70px,#245c47 70px 130px);clip-path:polygon(0 50%,10% 20%,18% 58%,28% 5%,37% 45%,48% 10%,58% 62%,69% 0,80% 51%,91% 15%,100% 48%,100% 100%,0 100%)}.tracks{position:absolute;left:0;right:0;bottom:0;height:90px;background:repeating-linear-gradient(90deg,transparent 0 34px,#6c432d 34px 48px,transparent 48px 82px),linear-gradient(to bottom,transparent 8px,#c9c3a8 8px 18px,transparent 18px 62px,#c9c3a8 62px 72px,transparent 72px),#6e846c;border-top:5px solid var(--night)}.chicken,.train,.obstacle{position:absolute;z-index:3;user-select:none}.chicken{left:110px;bottom:66px;font-size:58px;transform:translateY(calc(-1 * var(--jump-y,0px))) rotate(-4deg);transform-origin:bottom center;filter:drop-shadow(5px 6px 0 rgba(18,55,42,.25))}.train{left:var(--train-x,12px);bottom:74px;font-size:76px;transform:scaleX(-1);filter:drop-shadow(7px 7px 0 rgba(18,55,42,.3));transition:left .5s linear}.obstacle{left:var(--obstacle-x);bottom:74px;font-size:42px;transform:translateX(-50%)}.obstacle-signal{font-size:49px}.game-panel{position:absolute;z-index:5;left:50%;top:50%;transform:translate(-50%,-50%);width:min(90%,420px);padding:1.4rem;text-align:center;background:rgba(255,253,247,.96);border:3px solid var(--night);border-radius:22px;box-shadow:10px 12px 0 rgba(18,55,42,.28)}.game-panel h2{font-size:2.1rem;margin-bottom:.5rem}.game-panel .button{margin:.3rem}.game-controls{display:flex;justify-content:space-between;gap:1rem;margin-top:1rem}.game-controls .button{min-width:130px}.game-controls button:disabled{opacity:.45;cursor:not-allowed}@media(max-width:580px){.game-stage{min-height:360px;height:56vh}.chicken{left:76px;font-size:50px}.train{font-size:64px}.game-controls .button{flex:1;min-width:0}.sun{width:66px;height:66px}}@media(prefers-reduced-motion:reduce){.train{transition:none}.game-stage:before{opacity:.8}}