/* app/static/css/overdue_analysis.css */
/* 保留您现有的 CSS 样式 */
.stats-cards .stats-card {
    border-left: 4px solid #007bff;
}

#current-overdue {
    border-left-color: #dc3545;
}

#current-overdue .card-value {
    color: #dc3545;
}

#returned-overdue {
    border-left-color: #ffc107;
}

#returned-overdue .card-value {
    color: #ffc107;
}

#overdue-rate {
    border-left-color: #28a745;
}

#overdue-rate .card-value {
    color: #28a745;
}

.chart-legend {
    display: flex;
    flex-wrap: wrap;
    margin-top: 15px;
    gap: 15px;
}

.legend-item {
    display: flex;
    align-items: center;
    font-size: 14px;
}

.legend-color {
    width: 15px;
    height: 15px;
    border-radius: 4px;
    margin-right: 5px;
}

/* 添加下面的 CSS 修复图表容器问题 */
.chart-container {
    position: relative;
    height: 400px; /* 固定高度 */
    overflow: hidden; /* 防止内容溢出 */
    margin-bottom: 30px;
}

.chart-container.half {
    min-height: 350px;
    max-height: 380px; /* 最大高度限制 */
}

.chart-container canvas {
    max-height: 100%;
    width: 100% !important;
    height: 320px !important; /* 确保固定高度 */
}

/* 修复图表行的问题 */
.chart-row {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 30px;
    align-items: stretch; /* 确保两个容器高度一致 */
}

.chart-row .half {
    flex: 1 1 calc(50% - 10px);
    min-width: 300px;
    display: flex;
    flex-direction: column;
}

/* 添加一个明确的底部间距，防止页面无限延伸 */
.statistics-container {
    padding-bottom: 50px;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .chart-row {
        flex-direction: column;
    }

    .chart-container.half {
        width: 100%;
        margin-bottom: 20px;
    }
}