/* review.css */
.review-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-xl);
    margin-top: var(--space-lg);
}

.review-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    text-align: center;
    box-shadow: var(--shadow-md);
    border: 3px solid transparent;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.review-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(from 0deg, transparent, var(--primary-light), transparent 30%);
    opacity: 0;
    transition: opacity 0.5s ease;
    animation: rotate 4s linear infinite;
}

.review-card:hover::before {
    opacity: 0.1;
}

.review-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary);
}

.review-card:nth-child(1) { --card-color: var(--primary); }

.review-card:nth-child(2) { --card-color: var(--secondary); }

.review-card:nth-child(3) { --card-color: var(--accent-purple); }

.review-card:nth-child(4) { --card-color: var(--accent-pink); }

.review-card:nth-child(5) { --card-color: var(--accent-blue); }

.review-card .review-icon {
    width: 70px;
    height: 70px;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, var(--card-color), color-mix(in srgb, var(--card-color) 70%, white));
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-lg);
    box-shadow: var(--shadow-md);
}

.review-card .review-icon i {
    font-size: 1.8rem;
    color: white;
}

.review-card h3 {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
    border: none;
    padding: 0;
}

.review-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.quiz-area {
    background: linear-gradient(135deg, var(--bg-primary), var(--bg-secondary));
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    text-align: center;
    box-shadow: var(--shadow-md);
    margin: var(--space-lg) 0;
    border: 2px solid var(--border-color);
}

.quiz-word {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 900;
    color: var(--text-primary);
    margin: var(--space-lg) 0;
    cursor: pointer;
    transition: all 0.3s ease;
}

.quiz-word:hover {
    color: var(--primary);
    transform: scale(1.05);
}

.quiz-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
    margin: var(--space-xl) 0;
}

.quiz-option {
    background: var(--bg-card);
    border: 3px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    font-size: 1.2rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.quiz-option::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--primary-light), var(--secondary-light));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.quiz-option:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.quiz-option:hover::before {
    opacity: 0.1;
}

.quiz-option.correct {
    background: linear-gradient(135deg, #D1FAE5, #A7F3D0);
    border-color: var(--success);
    animation: bounceIn 0.5s ease;
}

.quiz-option.incorrect {
    background: linear-gradient(135deg, #FEE2E2, #FECACA);
    border-color: var(--danger);
    animation: wiggle 0.5s ease;
}

.review-mode-info-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, #FFF5EE 0%, #FFF0E6 100%);
    padding: var(--space-sm) var(--space-lg);
    margin: 0;
    border-bottom: 1px solid rgba(255, 107, 53, 0.15);
}

.review-mode-info-left {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.review-mode-icon {
    color: var(--primary);
    font-size: 1.1rem;
}

.review-mode-title {
    font-family: var(--font-display);
    font-weight: 700;
    color: var(--primary);
    font-size: 0.95rem;
}

.review-mode-list {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 600;
}

.review-mode-count {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.review-mode-info-right {
    display: flex;
    align-items: center;
}

.pronunciation-btn-group {
    display: flex;
    gap: 0;
}

.pronunciation-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 6px 12px;
    font-size: 0.8rem;
    font-weight: 600;
    border: 1px solid var(--border-color);
    background: white;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: var(--font-body);
}

.pronunciation-btn:first-child {
    border-radius: 0;
}

.pronunciation-btn:last-child {
    border-radius: 0;
    border-left: none;
}

.pronunciation-btn:hover {
    background: var(--bg-primary);
    color: var(--primary);
    border-color: var(--primary-light);
}

.pronunciation-btn.active {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    border-color: var(--primary);
}

.pronunciation-btn i {
    font-size: 0.75rem;
}

@media (max-width: 768px) {
    .review-mode-info-bar {
        flex-direction: column;
        gap: var(--space-sm);
        padding: var(--space-sm);
    }
    
    .review-mode-info-left {
        justify-content: center;
        text-align: center;
    }
    
    .review-mode-info-right {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 600px) {
    .review-card {
        padding: var(--space-lg);
    }

    .review-card .review-icon {
        width: 60px;
        height: 60px;
    }

    .quiz-area {
        padding: var(--space-lg);
    }

    .quiz-word {
        font-size: clamp(1.8rem, 7vw, 2.4rem);
    }

    .quiz-option {
        padding: var(--space-md);
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .pronunciation-btn {
        padding: 4px 8px;
        font-size: 0.75rem;
    }
    
    .pronunciation-btn i {
        font-size: 0.7rem;
    }
}

@media (hover: none) {
    .quiz-word:hover {
        transform: none;
        color: var(--text-primary);
    }

    .review-card:hover,
    .quiz-option:hover {
        transform: none;
        box-shadow: var(--shadow-sm);
    }
}