/**
 * PIRLS 學習進度儀表板樣式 - RWD 優化版 v1.3
 * @version 1.3
 * @date 2025-12-29
 * @fix 修正手機端寬度跑版和環形圖文字重疊問題
 */

/* 儀表板容器 */
.progress-dashboard {
    background: white;
    border-radius: 16px;
    padding: 24px;
    margin: 20px auto;
    max-width: 1200px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1);
    box-sizing: border-box;
}

/* 標題區 */
.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.dashboard-header h3 {
    margin: 0;
    font-size: 20px;
    color: #333;
    font-weight: 700;
}

.dashboard-toggle {
    background: rgba(33, 150, 243, 0.1);
    border: none;
    font-size: 24px;
    cursor: pointer;
    padding: 8px 12px;
    border-radius: 8px;
    transition: all 0.3s;
    min-width: 44px;
    min-height: 44px;
}

.dashboard-toggle:hover {
    background: rgba(33, 150, 243, 0.2);
    transform: scale(1.05);
}

/* 內容區 */
.dashboard-content {
    max-height: 2000px;
    overflow: hidden;
    transition: max-height 0.4s ease-out, opacity 0.3s;
    opacity: 1;
}

.dashboard-content.collapsed {
    max-height: 0;
    opacity: 0;
}

/* 柵格佈局 */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    width: 100%;
}

/* 統計卡片容器 */
.stats-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    width: 100%;
}

/* 統計卡片 */
.stat-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    border-radius: 12px;
    color: white;
    transition: transform 0.3s;
    min-height: 70px;
    box-sizing: border-box;
}

.stat-card:hover {
    transform: translateY(-2px);
}

.stat-card-1 {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.stat-card-2 {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.stat-card-3 {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.stat-card-4 {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
}

.stat-icon {
    font-size: 32px;
    flex-shrink: 0;
}

.stat-content {
    flex: 1;
    min-width: 0;
}

.stat-value {
    font-size: 28px;
    font-weight: bold;
    line-height: 1.2;
}

.stat-label {
    font-size: 13px;
    opacity: 0.95;
    margin-top: 2px;
}

/* 圖表卡片 */
.chart-card {
    background: #f8f9fa;
    border-radius: 12px;
    padding: 20px;
    width: 100%;
    box-sizing: border-box;
}

.chart-card h4 {
    margin: 0 0 16px 0;
    font-size: 16px;
    color: #666;
    font-weight: 600;
}

.chart-wide {
    grid-column: 1 / -1;
}

/* 進度圖容器 */
.chart-wrapper {
    position: relative;
    height: 200px;
    width: 100%;
    max-width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.chart-center-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    pointer-events: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: auto;
}

.chart-center-text .percentage {
    font-size: 36px;
    font-weight: bold;
    color: #4CAF50;
    line-height: 1;
    margin: 0;
    padding: 0;
}

.chart-center-text .label {
    font-size: 14px;
    color: #999;
    margin-top: 6px;
    line-height: 1;
    margin-bottom: 0;
    padding: 0;
}

/* 成績趨勢圖 */
#scoreChart {
    height: 250px !important;
    max-width: 100%;
}

#progressChart {
    max-width: 100%;
}

/* ==================== 響應式設計 ==================== */

/* 大螢幕 (>1024px) */
@media (min-width: 1025px) {
    .dashboard-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* 平板版 (768px - 1024px) */
@media (max-width: 1024px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .chart-wide {
        grid-column: auto;
    }
}

@media (max-width: 768px) {
    .progress-dashboard {
        padding: 16px;
        margin: 12px auto;
        width: calc(100% - 24px);
        max-width: 100%;
        border-radius: 12px;
    }

    .dashboard-grid {
        gap: 14px;
    }

    .dashboard-header h3 {
        font-size: 18px;
    }

    .stats-cards {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .stat-card {
        padding: 16px;
        min-height: 75px;
    }

    .stat-icon {
        font-size: 30px;
    }

    .stat-value {
        font-size: 26px;
    }

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

    .chart-card {
        padding: 16px;
    }

    /* 增加環形圖容器高度，讓圖表和文字不擠在一起 */
    .chart-wrapper {
        height: 240px;
        /* 增加高度 */
    }

    /* 縮小百分比文字避免重疊 */
    .chart-center-text .percentage {
        font-size: 26px;
        /* 從 32px 縮小到 26px */
    }

    .chart-center-text .label {
        font-size: 11px;
        /* 從 13px 縮小到 11px */
        margin-top: 3px;
    }

    .chart-card h4 {
        font-size: 15px;
    }

    #scoreChart {
        height: 220px !important;
    }
}

/* 手機版 (480px - 768px) */
@media (max-width: 480px) {
    .progress-dashboard {
        padding: 14px;
        margin: 10px auto;
        width: calc(100% - 20px);
        border-radius: 10px;
    }

    .dashboard-grid {
        gap: 12px;
    }

    .dashboard-header {
        margin-bottom: 14px;
    }

    .dashboard-header h3 {
        font-size: 17px;
    }

    .dashboard-toggle {
        font-size: 22px;
        padding: 10px;
    }

    .stats-cards {
        gap: 10px;
    }

    .stat-card {
        padding: 14px;
        min-height: 70px;
        gap: 12px;
    }

    .stat-icon {
        font-size: 28px;
    }

    .stat-value {
        font-size: 24px;
    }

    .stat-label {
        font-size: 12px;
    }

    .chart-card {
        padding: 14px;
    }

    .chart-wrapper {
        height: 220px;
        /* 增加高度 */
    }

    /* 進一步縮小文字 */
    .chart-center-text .percentage {
        font-size: 24px;
    }

    .chart-center-text .label {
        font-size: 10px;
        margin-top: 2px;
    }

    .chart-card h4 {
        font-size: 14px;
        margin-bottom: 12px;
    }

    #scoreChart {
        height: 200px !important;
    }
}

/* 超小螢幕 (<375px，如 iPhone SE) */
@media (max-width: 375px) {
    .progress-dashboard {
        padding: 12px;
        margin: 8px auto;
        width: calc(100% - 16px);
    }

    .dashboard-grid {
        gap: 10px;
    }

    .dashboard-header h3 {
        font-size: 16px;
    }

    .dashboard-toggle {
        font-size: 20px;
        min-width: 40px;
        min-height: 40px;
    }

    .stats-cards {
        gap: 8px;
    }

    .stat-card {
        padding: 12px;
        min-height: 65px;
        gap: 10px;
    }

    .stat-icon {
        font-size: 26px;
    }

    .stat-value {
        font-size: 22px;
    }

    .stat-label {
        font-size: 11px;
    }

    .chart-card {
        padding: 12px;
    }

    .chart-wrapper {
        height: 200px;
    }

    .chart-center-text .percentage {
        font-size: 22px;
        /* 更小的字體 */
    }

    .chart-center-text .label {
        font-size: 10px;
        margin-top: 2px;
    }

    .chart-card h4 {
        font-size: 13px;
        margin-bottom: 10px;
    }

    #scoreChart {
        height: 180px !important;
    }
}

/* 確保觸控友善 - 移除 hover 效果在觸控裝置 */
@media (hover: none) and (pointer: coarse) {
    .stat-card:hover {
        transform: none;
    }

    .dashboard-toggle:hover {
        background: rgba(33, 150, 243, 0.1);
        transform: none;
    }

    /* 但保留 active 狀態給觸控反饋 */
    .stat-card:active {
        transform: scale(0.98);
        opacity: 0.9;
    }

    .dashboard-toggle:active {
        background: rgba(33, 150, 243, 0.25);
        transform: scale(0.95);
    }
}

/* ==================== 動畫效果 ==================== */

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.dashboard-content {
    animation: fadeIn 0.5s ease-out;
}

.stat-card {
    animation: fadeIn 0.5s ease-out;
}

.stat-card:nth-child(1) {
    animation-delay: 0.1s;
}

.stat-card:nth-child(2) {
    animation-delay: 0.2s;
}

.stat-card:nth-child(3) {
    animation-delay: 0.3s;
}

.stat-card:nth-child(4) {
    animation-delay: 0.4s;
}

/* ==================== 深色模式支援 ==================== */

@media (prefers-color-scheme: dark) {
    .progress-dashboard {
        background: #2d2d2d;
    }

    .dashboard-header h3 {
        color: #e0e0e0;
    }

    .chart-card {
        background: #383838;
    }

    .chart-card h4 {
        color: #b0b0b0;
    }
}