/* Math100 响应式样式 */

/* 大屏幕设备（桌面端） */
@media (min-width: 1200px) {
    .container {
        max-width: 500px;
    }
}

/* 中等屏幕设备（平板端） */
@media (max-width: 991px) {
    .container {
        padding: 30px;
    }

    .question-text {
        font-size: 48px;
    }

    .answer-input {
        font-size: 26px;
    }
}

/* 小屏幕设备（手机端） */
@media (max-width: 767px) {
    body {
        padding: 15px;
        align-items: flex-start;
        padding-top: 30px;
    }

    .container {
        padding: 24px 20px;
        min-height: auto;
    }

    .header {
        margin-bottom: 28px;
    }

    .header-icon {
        font-size: 40px;
    }

    .header-title {
        font-size: 22px;
    }

    .mode-title {
        font-size: 14px;
    }

    .mode-item {
        padding: 16px;
    }

    .mode-item .text {
        font-size: 14px;
    }

    .start-btn {
        padding: 14px 18px;
        font-size: 15px;
    }

    .question-container {
        padding: 32px 22px;
    }

    .question-text {
        font-size: 40px;
    }

    .answer-input {
        font-size: 24px;
        padding: 14px 18px;
    }

    .submit-btn {
        padding: 14px 20px;
        font-size: 14px;
    }

    .exercise-header {
        font-size: 12px;
        padding: 12px 16px;
        margin-bottom: 16px;
    }

    .exercise-header-item span:last-child {
        font-size: 14px;
    }

    .result-icon {
        font-size: 56px;
    }

    .result-title {
        font-size: 22px;
    }

    .result-row {
        padding: 12px 0;
    }

    .result-label {
        font-size: 13px;
    }

    .result-value {
        font-size: 16px;
    }

    .grade-badge {
        padding: 10px 20px;
        font-size: 16px;
    }

    .action-buttons {
        gap: 10px;
    }

    .btn {
        padding: 12px 16px;
        font-size: 13px;
    }

    .progress-dots {
        gap: 6px;
    }

    .progress-dot {
        width: 8px;
        height: 8px;
    }
}

/* 超小屏幕设备 */
@media (max-width: 480px) {
    body {
        padding: 10px;
        padding-top: 20px;
    }

    .container {
        padding: 20px 16px;
        border-radius: 24px;
    }

    .header-icon {
        font-size: 36px;
    }

    .header-title {
        font-size: 20px;
    }

    .header-subtitle {
        font-size: 13px;
    }

    .question-text {
        font-size: 34px;
        letter-spacing: 2px;
    }

    .answer-input {
        font-size: 22px;
        padding: 12px 16px;
        max-width: 160px;
    }

    .question-container {
        padding: 28px 16px;
    }

    .question-number {
        font-size: 13px;
    }

    .result-icon {
        font-size: 48px;
    }

    .result-title {
        font-size: 20px;
    }

    .result-subtitle {
        font-size: 13px;
    }

    .mode-item {
        padding: 14px;
    }

    .mode-item .text {
        font-size: 13px;
    }

    .mode-item .emoji {
        font-size: 16px;
    }

    .grade-badge {
        padding: 8px 16px;
        font-size: 14px;
    }

    .wrong-item {
        padding: 12px;
        font-size: 13px;
    }

    .recommendation {
        padding: 12px;
        font-size: 13px;
    }
}

/* 竖屏优化 */
@media (max-height: 600px) {
    body {
        align-items: flex-start;
        padding-top: 15px;
    }

    .container {
        min-height: auto;
    }

    .header {
        margin-bottom: 20px;
    }

    .question-container {
        padding: 24px 20px;
    }

    .question-text {
        font-size: 32px;
        margin-bottom: 20px;
    }
}

/* 横屏优化 */
@media (orientation: landscape) and (max-height: 500px) {
    body {
        padding: 10px;
        align-items: center;
    }

    .container {
        padding: 16px 24px;
        max-width: 600px;
        display: flex;
        flex-wrap: wrap;
        align-content: flex-start;
    }

    .header {
        width: 100%;
        margin-bottom: 16px;
    }

    .mode-section {
        margin-bottom: 16px;
    }

    .question-container {
        padding: 20px;
        margin-bottom: 12px;
    }

    .question-text {
        font-size: 28px;
        margin-bottom: 16px;
    }

    .answer-input {
        font-size: 20px;
        padding: 10px 16px;
    }

    .submit-btn {
        padding: 12px 16px;
        margin-top: 12px;
    }

    .result-card {
        padding: 16px;
        margin-bottom: 12px;
    }

    .action-buttons {
        width: 100%;
    }
}

/* 高分辨率屏幕优化 */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .container {
        box-shadow: var(--shadow-lg);
    }
}

/* 触摸设备优化 */
@media (hover: none) and (pointer: coarse) {
    .mode-item:hover {
        border-color: transparent;
        transform: none;
    }

    .mode-item.selected {
        transform: scale(1.02);
    }

    .mode-item:active {
        transform: scale(0.98);
    }

    .start-btn:hover:not(:disabled) {
        transform: none;
        box-shadow: var(--shadow-md);
    }

    .start-btn:active {
        transform: scale(0.98);
    }

    .submit-btn:hover {
        transform: none;
    }

    .submit-btn:active {
        transform: scale(0.98);
    }

    .btn:hover {
        transform: none;
    }

    .btn:active {
        transform: scale(0.98);
    }

    .answer-input {
        font-size: 16px;
    }

    .wrong-item:hover {
        transform: none;
    }
}

/* 减少动画（用户偏好） */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .header-icon {
        animation: none;
    }

    .result-icon {
        animation: none;
    }

    .mode-item .bullet {
        animation: none;
    }
}