/* Styles specific to the flashcards page */
.flashcard-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: var(--spacing-xl) 0;
}

.flashcard {
    width: 100%;
    max-width: 450px;
    height: 280px;
    perspective: 1000px;
    margin-bottom: var(--spacing-lg);
    cursor: pointer;
}

.flashcard-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    transform-style: preserve-3d;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border-radius: var(--border-radius);
    border: 3px solid white;
}

.flashcard.flipped .flashcard-inner {
    transform: rotateY(180deg);
}

.flashcard-front,
.flashcard-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: calc(var(--border-radius) - 4px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    text-align: center;
}

.flashcard-front {
    background-color: var(--primary);
    color: white;
    background-image: radial-gradient(circle at top right, var(--primary-light), transparent 70%);
}

.flashcard-back {
    background-color: var(--secondary);
    color: white;
    transform: rotateY(180deg);
    background-image: radial-gradient(circle at top right, #FFAC8A, transparent 70%);
}

.flashcard-word {
    font-size: 4rem;
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-lg);
}

.card-subtitle {
    font-size: 1.3rem;
    opacity: 0.9;
    margin-bottom: var(--spacing-lg);
}

.flashcard-example {
    font-size: 1.8rem;
    line-height: 1.5;
}

.highlight {
    background-color: rgba(255, 255, 255, 0.3);
    padding: 0 6px;
    border-radius: 4px;
    font-weight: 700;
}

.flashcard-navigation {
    display: flex;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
    flex-wrap: wrap;
    justify-content: center;
}

.flashcard-counter {
    margin-bottom: var(--spacing-md);
    color: var(--text-light);
    font-size: 1.2rem;
    font-weight: 600;
    text-align: center;
    width: 100%;
}

.btn-sound {
    background-color: var(--accent);
    color: white;
    border-radius: 50%;
    width: 60px;
    height: 60px;
    min-width: unset;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-sound:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px) scale(1.1);
}

.icon-large {
    width: 32px;
    height: 32px;
}

@media (max-width: 768px) {
    .flashcard {
        max-width: 320px;
        height: 220px;
    }

    .flashcard-word {
        font-size: 3rem;
    }
    
    .flashcard-example {
        font-size: 1.4rem;
    }
    
    .flashcard-navigation {
        flex-wrap: wrap;
        justify-content: center;
    }
}