/* 数学闯关机器人模块样式 */

/* 数学容器 */
.math-container {
    padding: var(--spacing-md);
    padding-bottom: calc(var(--spacing-xl) * 2);
}

/* 关卡地图 */
.level-map {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.level-node {
    aspect-ratio: 1;
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: 3px solid transparent;
    position: relative;
}

.level-node.locked {
    opacity: 0.5;
    cursor: not-allowed;
    background: var(--bg-color);
}

.level-node.current {
    border-color: var(--primary-color);
    box-shadow: 0 0 20px rgba(255, 107, 107, 0.3);
    animation: levelPulse 2s ease-in-out infinite;
}

@keyframes levelPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.level-node.completed {
    background: linear-gradient(135deg, rgba(78, 205, 196, 0.1), rgba(149, 225, 211, 0.1));
    border-color: var(--secondary-color);
}

.level-node:not(.locked):active {
    transform: scale(0.95);
}

.level-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-xs);
}

.level-number {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.level-stars {
    display: flex;
    gap: 2px;
}

.star {
    font-size: 1rem;
}

.star.earned {
    color: #FFD700;
}

.star.empty {
    color: var(--border-color);
}

/* 答题界面 */
.quiz-screen {
    display: none;
}

.quiz-screen.active {
    display: block;
    animation: fadeIn var(--transition-normal);
}

.quiz-header {
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-blue));
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.quiz-progress {
    font-size: 1rem;
    font-weight: 600;
}

.quiz-score {
    font-size: 1.125rem;
    font-weight: 700;
}

.question-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    min-height: 200px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.question-text {
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.answer-input {
    width: 120px;
    height: 80px;
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    border: 3px solid var(--border-color);
    border-radius: var(--radius-md);
    background: white;
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.answer-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(255, 107, 107, 0.1);
}

.answer-input.correct {
    border-color: #4CAF50;
    background: rgba(76, 175, 80, 0.1);
}

.answer-input.wrong {
    border-color: #F44336;
    background: rgba(244, 67, 54, 0.1);
    animation: shake 0.5s;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-10px); }
    75% { transform: translateX(10px); }
}

.number-keyboard {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.number-btn {
    aspect-ratio: 1;
    font-size: 1.75rem;
    font-weight: 700;
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

/* 0 按钮靠左 */
.number-btn[data-number="0"] {
    grid-column: 1;
}

/* 清除和确定按钮在右侧 */
.action-btn {
    padding: var(--spacing-md);
    font-size: 1rem;
    font-weight: 600;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.number-btn:active {
    transform: scale(0.95);
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* 错题讲解 */
.explanation-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: var(--spacing-md);
}

.explanation-modal.show {
    display: flex;
    animation: fadeIn var(--transition-normal);
}

.explanation-content {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    max-width: 400px;
    width: 100%;
    box-shadow: var(--shadow-lg);
}

.explanation-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.explanation-text {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.dots-visual {
    display: flex;
    gap: var(--spacing-xs);
    justify-content: center;
    flex-wrap: wrap;
    margin: var(--spacing-md) 0;
}

.dot {
    width: 24px;
    height: 24px;
    background: var(--primary-color);
    border-radius: 50%;
}

/* 结算页面 */
.result-screen {
    display: none;
    text-align: center;
    padding: var(--spacing-xl);
}

.result-screen.active {
    display: block;
    animation: fadeIn var(--transition-normal);
}

.result-icon {
    font-size: 5rem;
    margin-bottom: var(--spacing-md);
}

.result-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.result-score {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.result-stars {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
}

.result-star {
    font-size: 3rem;
    animation: starPop 0.5s ease-out backwards;
}

.result-star:nth-child(1) { animation-delay: 0.1s; }
.result-star:nth-child(2) { animation-delay: 0.2s; }
.result-star:nth-child(3) { animation-delay: 0.3s; }

@keyframes starPop {
    0% { transform: scale(0) rotate(0deg); }
    50% { transform: scale(1.2) rotate(180deg); }
    100% { transform: scale(1) rotate(360deg); }
}

/* 响应式 */
@media (max-width: 375px) {
    .question-text {
        font-size: 2.5rem;
    }
    
    .answer-input {
        width: 100px;
        height: 70px;
        font-size: 2rem;
    }
}