.challenge-background[data-v-3739fcba]{background:radial-gradient(140% 100% at 50% 0,#af87ffcc 0,#170b42cc 30%,#170b42cc);border-radius:16px;overflow:visible;position:relative}.challenge-countdown-timer[data-v-3739fcba]{background:#fff;border-radius:12px;color:#000;font-size:12px;font-weight:700;left:50%;padding:2px 8px;position:absolute;top:-12px;transform:translate(-50%);z-index:10}.flip-container[data-v-3739fcba]{overflow:hidden;perspective:1000px;position:relative}.flip-card[data-v-3739fcba]{height:auto;min-height:83px;min-width:100%}.flip-card[data-v-3739fcba],.flipper[data-v-3739fcba]{position:relative;transform-style:preserve-3d;width:100%}.flipper[data-v-3739fcba]{height:100%;transform-origin:center center;transition:.6s}.flipper.flipped[data-v-3739fcba]{transform:rotateX(180deg)}.back-card[data-v-3739fcba],.front-card[data-v-3739fcba]{backface-visibility:hidden;height:auto;min-width:100%;position:relative;transform-style:preserve-3d;transition:.6s;width:100%}.back-card[data-v-3739fcba]{left:0;position:absolute;top:0;transform:rotateX(180deg)}