.flashcard-container{perspective:1000px;width:100%;max-width:600px;height:350px}.flashcard{width:100%;height:100%;transform-style:preserve-3d;cursor:pointer;transition:transform .6s;position:relative}.flashcard.is-flipped{transform:rotateY(180deg)}.flashcard-face{backface-visibility:hidden;text-align:center;border-radius:.75rem;flex-direction:column;justify-content:center;align-items:center;width:100%;height:100%;padding:2rem;display:flex;position:absolute}.flashcard-front{color:#1e293b;background-color:#fff}.dark .flashcard-front{color:#fff;background-color:#1e293b}.flashcard-back{color:#1e293b;background-color:#fde68a;transform:rotateY(180deg)}.dark .flashcard-back{color:#fde68a;background-color:#4a4a28}.progress-bar[value]::-webkit-progress-bar{background-color:#e5e7eb}.progress-bar[value]::-webkit-progress-value{background-color:#f59e0b}.dark .progress-bar[value]::-webkit-progress-bar{background-color:#374151}.dark .progress-bar[value]::-webkit-progress-value{background-color:#f59e0b}.progress.green[value]::-webkit-progress-value{background-color:#22c55e}