.race-game-screen{max-width:980px}.race-scoreboard{display:flex;align-items:center;justify-content:center;gap:12px;flex-wrap:wrap;margin:0 0 14px;font-weight:900;color:#176b50}.race-score{padding:7px 13px;border-radius:999px;color:#fff}.race-score-player{background:#e75a45}.race-score-rival{background:#3979b8}.race-track{--finish-center:48px;position:relative;overflow:hidden;padding:22px 52px 22px 20px;background:linear-gradient(#78b961 0 10%,#3f4449 10% 90%,#78b961 90%);border:5px solid #fff;box-shadow:inset 0 9px 15px rgba(255,255,255,.12),inset 0 -9px 15px rgba(0,0,0,.2),var(--shadow)}.race-road-motion{position:absolute;z-index:0;inset:10% 0;background-image:repeating-linear-gradient(100deg,transparent 0 75px,rgba(255,255,255,.045) 76px 82px,transparent 83px 150px);background-size:300px 100%;animation:road-surface-move 1.1s linear infinite}.race-track:before{content:"";position:absolute;z-index:1;left:0;right:0;top:calc(50% - 3px);height:6px;background:repeating-linear-gradient(90deg,#fff 0 42px,transparent 42px 78px);filter:drop-shadow(0 2px 0 rgba(0,0,0,.18));animation:road-line-move .7s linear infinite}.race-track:after{content:"";position:absolute;z-index:1;left:0;right:0;bottom:8%;height:5px;background:repeating-linear-gradient(90deg,rgba(255,255,255,.5) 0 22px,transparent 22px 42px);animation:road-line-move .9s linear infinite}.race-lane{position:relative;z-index:2;height:112px}.race-lane+.race-lane{border-top:0}.race-lane-name{position:absolute;left:1px;top:8px;z-index:4;padding:3px 7px;border-radius:8px;background:rgba(15,33,31,.72);color:#fff;font-size:.7rem;font-weight:900;letter-spacing:.08em}.race-car{position:absolute;top:34px;left:10%;z-index:5;width:118px;height:78px;display:flex;align-items:center;justify-content:center;transform:translateX(-50%);filter:drop-shadow(0 8px 3px rgba(0,0,0,.3));transition:left .72s cubic-bezier(.2,.9,.25,1.15)}.race-car img{display:block;width:100%;height:100%;object-fit:contain;user-select:none;pointer-events:none}.race-finish{position:absolute;z-index:3;right:34px;top:8%;bottom:8%;width:28px;background-color:#fff;background-image:linear-gradient(45deg,#202020 25%,transparent 25%,transparent 75%,#202020 75%),linear-gradient(45deg,#202020 25%,transparent 25%,transparent 75%,#202020 75%);background-position:0 0,7px 7px;background-size:14px 14px;box-shadow:0 0 0 3px rgba(255,255,255,.65)}.race-question{margin-top:16px;padding:20px;text-align:center}.race-equation{font-family:'Baloo 2',sans-serif;font-size:clamp(3.1rem,9vw,5.8rem);font-weight:900;line-height:1;color:#176b50;margin:7px 0 15px}.race-choices{display:grid;grid-template-columns:repeat(4,minmax(78px,1fr));gap:12px;max-width:680px;margin:auto}.race-choice{min-height:62px;border:3px solid #62b8c6;border-radius:17px;background:#fff;color:#176b50;font-size:1.65rem;font-weight:900;box-shadow:0 5px 0 #aedbe4;transition:.16s}.race-choice:hover{background:#effcff;transform:translateY(-2px)}.race-choice.correct{background:#bcecb8;border-color:#62b75c;box-shadow:0 5px 0 #82c47b}.race-choice.wrong{background:#ffd2c5;border-color:#e75a45;box-shadow:0 5px 0 #ef9b88}.race-choice:disabled{cursor:default}.race-retry{margin-left:8px;padding:8px 13px;border-radius:11px;background:#176b50;color:#fff;font-weight:900}@keyframes road-line-move{to{background-position:-78px 0}}@keyframes road-surface-move{to{background-position:-300px 0}}@media(prefers-reduced-motion:reduce){.race-road-motion,.race-track:before,.race-track:after{animation:none}.race-car{transition:none}}@media(max-width:620px){.race-track{--finish-center:33px;padding:14px 38px 14px 10px}.race-lane{height:88px}.race-car{top:25px;width:82px;height:62px}.race-finish{right:22px;width:22px}.race-choices{grid-template-columns:repeat(2,1fr)}.race-question{padding:17px 13px}}
.race-track .race-lane{z-index:4}