/* 音标学习样式 */

.phonetics-container {
    padding: 20px;
}

.phonetics-header {
    text-align: center;
    margin-bottom: 30px;
}

.phonetics-header h2 {
    color: var(--text-dark);
    font-size: 32px;
    margin-bottom: 10px;
}

.phonetics-tabs {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 12px 25px;
    border: none;
    border-radius: 25px;
    background: white;
    color: var(--text-dark);
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-soft);
}

.tab-btn.active {
    background: var(--primary-color);
    color: white;
    transform: scale(1.05);
}

.tab-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-strong);
}

/* 音标网格 */
.phonetics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.phonetic-card {
    background: white;
    border-radius: 15px;
    padding: 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-soft);
    position: relative;
    overflow: hidden;
}

.phonetic-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-strong);
}

.phonetic-card:active {
    transform: scale(0.95);
}

.phonetic-card.playing {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    animation: pulse 0.6s ease-in-out;
}

.phonetic-symbol {
    font-size: 48px;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 10px;
    font-family: 'Times New Roman', serif;
}

.phonetic-card.playing .phonetic-symbol {
    color: white;
}

.phonetic-example {
    font-size: 14px;
    color: var(--text-light);
    margin-top: 8px;
}

.phonetic-card.playing .phonetic-example {
    color: rgba(255, 255, 255, 0.9);
}

/* 音标详情 */
.phonetic-detail {
    background: white;
    border-radius: 20px;
    padding: 30px;
    box-shadow: var(--shadow-soft);
    display: none;
}

.phonetic-detail.active {
    display: block;
    animation: slideInRight 0.5s ease-out;
}

.detail-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 20px;
}

.detail-symbol {
    font-size: 72px;
    font-weight: bold;
    color: var(--primary-color);
    font-family: 'Times New Roman', serif;
}

.detail-info h3 {
    font-size: 24px;
    color: var(--text-dark);
    margin-bottom: 5px;
}

.detail-info p {
    color: var(--text-light);
}

.mouth-diagram {
    width: 200px;
    height: 200px;
    margin: 20px auto;
    background: #f0f0f0;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 100px;
    animation: mouthOpen 1s ease-in-out infinite;
}

@keyframes mouthOpen {
    0%, 100% { transform: scaleY(1); }
    50% { transform: scaleY(1.3); }
}

.example-words {
    margin-top: 20px;
}

.example-words h4 {
    color: var(--text-dark);
    margin-bottom: 15px;
}

.word-list {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.word-item {
    background: var(--bg-light);
    padding: 10px 20px;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

/* 游戏模式 */
.phonetic-game {
    background: white;
    border-radius: 20px;
    padding: 30px;
    box-shadow: var(--shadow-soft);
    text-align: center;
}

.game-question {
    font-size: 24px;
    color: var(--text-dark);
    margin-bottom: 30px;
}

.game-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin-bottom: 20px;
}

.game-option {
    padding: 20px;
    border: 3px solid var(--primary-color);
    border-radius: 15px;
    background: white;
    font-size: 36px;
    font-family: 'Times New Roman', serif;
    cursor: pointer;
    transition: all 0.3s ease;
}

.game-option:hover {
    background: var(--primary-color);
    color: white;
    transform: scale(1.05);
}

.game-option.correct {
    background: var(--success-color);
    border-color: var(--success-color);
    color: white;
}

.game-option.wrong {
    background: var(--secondary-color);
    border-color: var(--secondary-color);
    color: white;
}

/* 返回按钮 */
.back-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 25px;
    background: var(--text-light);
    color: white;
    border: none;
    border-radius: 25px;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-bottom: 20px;
}

.back-btn:hover {
    background: var(--text-dark);
    transform: translateX(-5px);
}

/* 响应式 */
@media (max-width: 768px) {
    .phonetics-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
        gap: 15px;
    }

    .phonetic-symbol {
        font-size: 36px;
    }

    .game-options {
        grid-template-columns: 1fr;
    }

    .detail-symbol {
        font-size: 48px;
    }
}