/* ============================================================
   pinyin.css - 拼音模块专属样式
   颜色主题：语文红（--chinese-color）
   ============================================================ */

.pinyin-view {
    animation: pageFadeIn 0.3s ease;
}

/* 拼音子导航 */
.pinyin-nav {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.pinyin-nav-btn {
    padding: 10px 18px;
    background: var(--bg-card);
    border: 2px solid var(--text-secondary);
    border-radius: var(--radius-full);
    font-size: 16px;
    color: var(--text-secondary);
    transition: all 0.2s;
    font-weight: 600;
}

.pinyin-nav-btn:hover {
    border-color: var(--chinese-color);
    color: var(--chinese-color);
}

.pinyin-nav-btn.active {
    background: linear-gradient(135deg, var(--chinese-color) 0%, #C0392B 100%);
    border-color: var(--chinese-color);
    color: white;
    box-shadow: var(--shadow-medium);
}

/* 拼音网格 */
.pinyin-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 12px;
}

.pinyin-tile {
    aspect-ratio: 1;
    background: linear-gradient(135deg, #FFFFFF 0%, #FFF8E7 100%);
    border: 3px solid var(--chinese-color);
    border-radius: var(--radius-lg);
    font-size: 44px;
    font-family: 'Fredoka', sans-serif;
    font-weight: 700;
    color: var(--chinese-color);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    box-shadow: var(--shadow-soft);
    position: relative;
}

.pinyin-tile:hover {
    transform: translateY(-3px) scale(1.08);
    box-shadow: var(--shadow-medium);
    background: linear-gradient(135deg, #FFFFFF 0%, #FFE9B0 100%);
}

.pinyin-tile.completed::after {
    content: '✓';
    position: absolute;
    top: -6px;
    right: -6px;
    width: 22px;
    height: 22px;
    background: var(--grass-primary);
    color: white;
    border-radius: 50%;
    font-size: 13px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-soft);
}

/* 拼音详情卡 */
.pinyin-detail-view {
    animation: pageFadeIn 0.4s ease;
}

.pinyin-card {
    width: 260px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, #FFF8E7 0%, #FFE9B0 100%);
    border: 6px solid var(--chinese-color);
    border-radius: var(--radius-xl);
    padding: 30px 20px;
    text-align: center;
    box-shadow: var(--shadow-medium);
    animation: numberPop 0.4s ease;
}

.pinyin-display {
    font-size: 120px;
    font-family: 'Fredoka', sans-serif;
    font-weight: 700;
    color: var(--chinese-color);
    line-height: 1;
    text-shadow: 4px 4px 0 rgba(231, 76, 60, 0.2);
}

.pinyin-example {
    font-size: 32px;
    font-family: 'Fredoka', sans-serif;
    color: var(--sun-deep);
    margin-top: 12px;
    letter-spacing: 4px;
}

.pinyin-actions {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 20px;
}

.pinyin-word-section {
    background: var(--bg-card);
    padding: 20px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    margin-bottom: 20px;
    border-top: 6px solid var(--chinese-color);
}

.pinyin-word-section h3 {
    font-size: 24px;
    color: var(--chinese-color);
    margin-bottom: 16px;
    text-align: center;
}

.pinyin-words {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 12px;
}

.pinyin-word-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 14px 8px;
    background: linear-gradient(135deg, #FFF8E7 0%, #FFE9B0 100%);
    border: 3px solid var(--chinese-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s;
}

.pinyin-word-item:hover {
    transform: translateY(-2px) scale(1.05);
}

.pinyin-word-char {
    font-size: 40px;
    font-family: 'ZCOOL KuaiLe', serif;
    color: var(--chinese-color);
    line-height: 1;
}

.pinyin-word-py {
    font-size: 18px;
    font-family: 'Fredoka', sans-serif;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* 拼读练习 */
.pinyin-blend-view {
    animation: pageFadeIn 0.3s ease;
}

.blend-header {
    text-align: center;
    margin-bottom: 20px;
}

.blend-header h3 {
    font-size: 28px;
    color: var(--chinese-color);
    margin-bottom: 4px;
}

.blend-header p {
    font-size: 16px;
    color: var(--text-secondary);
}

.blend-display {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 24px;
    padding: 24px;
    background: linear-gradient(135deg, #FFF8E7 0%, #FFE9B0 100%);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    border: 3px solid var(--chinese-color);
    flex-wrap: wrap;
}

.blend-initial,
.blend-final {
    width: 80px;
    height: 80px;
    background: var(--bg-card);
    border: 3px solid var(--chinese-color);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 44px;
    font-family: 'Fredoka', sans-serif;
    font-weight: 700;
    color: var(--chinese-color);
    box-shadow: var(--shadow-soft);
}

.blend-plus,
.blend-equals {
    font-size: 36px;
    font-weight: 700;
    color: var(--sun-deep);
}

.blend-result {
    min-width: 100px;
    height: 80px;
    padding: 0 16px;
    background: rgba(231, 76, 60, 0.1);
    border: 3px dashed var(--chinese-color);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 44px;
    font-family: 'Fredoka', sans-serif;
    font-weight: 700;
    color: var(--chinese-color);
}

.blend-result.filled {
    background: linear-gradient(135deg, var(--grass-primary) 0%, var(--grass-deep) 100%);
    color: white;
    border-style: solid;
    border-color: var(--grass-primary);
}

.blend-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 12px;
    margin-bottom: 16px;
}

.blend-option {
    padding: 18px 12px;
    background: linear-gradient(135deg, #FFF8E7 0%, #FFE9B0 100%);
    border: 3px solid var(--chinese-color);
    border-radius: var(--radius-lg);
    font-size: 32px;
    font-family: 'Fredoka', sans-serif;
    font-weight: 700;
    color: var(--grass-dark);
    transition: all 0.2s;
    box-shadow: var(--shadow-soft);
}

.blend-option:hover:not(:disabled) {
    transform: translateY(-3px) scale(1.05);
}

.blend-option.correct {
    background: linear-gradient(135deg, var(--grass-primary) 0%, var(--grass-deep) 100%);
    color: white;
    border-color: var(--grass-primary);
    animation: correctBounce 0.5s ease;
}

.blend-option.wrong {
    background: linear-gradient(135deg, var(--chinese-color) 0%, #C0392B 100%);
    color: white;
    border-color: var(--chinese-color);
    animation: shakeX 0.4s ease-in-out;
}

.blend-option:disabled {
    cursor: not-allowed;
    opacity: 0.7;
}

.blend-stats {
    display: flex;
    justify-content: center;
    gap: 24px;
    font-size: 18px;
    color: var(--text-secondary);
}

.blend-stats strong {
    font-size: 24px;
    font-family: 'Fredoka', sans-serif;
    color: var(--chinese-color);
}

/* 拼音配对 */
.pinyin-match-view {
    animation: pageFadeIn 0.3s ease;
}

.pinyin-match-view .match-header {
    text-align: center;
    margin-bottom: 20px;
}

.pinyin-match-view .match-header h3 {
    font-size: 28px;
    color: var(--chinese-color);
    margin-bottom: 4px;
}

.pinyin-match-view .match-header p {
    font-size: 16px;
    color: var(--text-secondary);
}

#pMatchCharDisplay {
    font-size: 140px;
    font-family: 'ZCOOL KuaiLe', serif;
    color: var(--chinese-color);
    text-align: center;
    margin-bottom: 24px;
    line-height: 1;
    text-shadow: 4px 4px 0 rgba(231, 76, 60, 0.2);
    animation: numberPop 0.3s ease;
}

#pMatchOptionsList {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 12px;
    margin-bottom: 16px;
}

.pinyin-match-option {
    padding: 18px 12px;
    background: linear-gradient(135deg, #FFF8E7 0%, #FFE9B0 100%);
    border: 3px solid var(--chinese-color);
    border-radius: var(--radius-lg);
    font-size: 32px;
    font-family: 'Fredoka', sans-serif;
    font-weight: 700;
    color: var(--grass-dark);
    transition: all 0.2s;
    box-shadow: var(--shadow-soft);
}

.pinyin-match-option:hover:not(:disabled) {
    transform: translateY(-3px) scale(1.05);
}

.pinyin-match-option.correct {
    background: linear-gradient(135deg, var(--grass-primary) 0%, var(--grass-deep) 100%);
    color: white;
    border-color: var(--grass-primary);
    animation: correctBounce 0.5s ease;
}

.pinyin-match-option.wrong {
    background: linear-gradient(135deg, var(--chinese-color) 0%, #C0392B 100%);
    color: white;
    border-color: var(--chinese-color);
    animation: shakeX 0.4s ease-in-out;
}

.pinyin-match-option:disabled {
    cursor: not-allowed;
    opacity: 0.7;
}

.pinyin-match-stats {
    display: flex;
    justify-content: center;
    gap: 24px;
    font-size: 18px;
    color: var(--text-secondary);
}

.pinyin-match-stats strong {
    font-size: 24px;
    font-family: 'Fredoka', sans-serif;
    color: var(--chinese-color);
}

/* 响应式 */
@media (max-width: 768px) {
    .pinyin-grid {
        grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
        gap: 8px;
    }

    .pinyin-tile {
        font-size: 32px;
    }

    .pinyin-card {
        width: 220px;
        padding: 20px 16px;
    }

    .pinyin-display {
        font-size: 90px;
    }

    .pinyin-example {
        font-size: 24px;
    }

    .blend-initial,
    .blend-final {
        width: 64px;
        height: 64px;
        font-size: 32px;
    }

    .blend-plus,
    .blend-equals {
        font-size: 28px;
    }

    .blend-result {
        min-width: 80px;
        height: 64px;
        font-size: 32px;
    }

    .blend-option {
        font-size: 24px;
        padding: 14px 8px;
    }

    #pMatchCharDisplay {
        font-size: 100px;
    }

    .pinyin-match-option {
        font-size: 24px;
        padding: 14px 8px;
    }
}

@media (max-width: 480px) {
    .pinyin-grid {
        grid-template-columns: repeat(auto-fill, minmax(70px, 1fr));
    }

    .pinyin-tile {
        font-size: 28px;
    }

    .pinyin-nav-btn {
        padding: 8px 12px;
        font-size: 14px;
    }
}