/* ===== 皮尔逊相关分析 - 黑白极简无圆角样式 ===== */

/* 全局重置和基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial', 'Microsoft YaHei', sans-serif;
    background-color: #ffffff;
    color: #000000;
    line-height: 1.6;
    font-size: 14px;
}

/* 主容器 */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
    background-color: #ffffff;
}

/* 标题区域 */
.header {
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid #000000;
}

.header h1 {
    font-size: 28px;
    font-weight: bold;
    color: #000000;
    margin-bottom: 8px;
}

.header p {
    font-size: 16px;
    color: #666666;
}

/* 输入区域 */
.input-section {
    margin-bottom: 30px;
    padding: 20px;
    border: 1px solid #000000;
    background-color: #ffffff;
}

.input-left {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    align-items: end;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.input-group label {
    font-weight: bold;
    color: #000000;
    font-size: 14px;
}

.input-group input {
    padding: 8px 12px;
    border: 1px solid #000000;
    background-color: #ffffff;
    color: #000000;
    font-size: 14px;
    width: 120px;
    outline: none;
}

.input-group input:focus {
    border: 2px solid #000000;
}

.input-group input::placeholder {
    color: #999999;
}

/* 按钮组 */
.button-group {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.btn {
    padding: 8px 16px;
    border: 1px solid #000000;
    background-color: #ffffff;
    color: #000000;
    font-size: 14px;
    font-weight: bold;
    cursor: pointer;
    outline: none;
    transition: all 0.2s ease;
}

.btn:hover {
    background-color: #000000;
    color: #ffffff;
}

.btn:active {
    background-color: #333333;
    color: #ffffff;
}

.btn-primary {
    background-color: #ffffff;
    color: #000000;
}

.btn-primary:hover {
    background-color: #000000;
    color: #ffffff;
}

.btn-success {
    background-color: #ffffff;
    color: #000000;
}

.btn-success:hover {
    background-color: #000000;
    color: #ffffff;
}

.btn-secondary {
    background-color: #ffffff;
    color: #000000;
}

.btn-secondary:hover {
    background-color: #000000;
    color: #ffffff;
}

.btn-test {
    background-color: #ffffff;
    color: #000000;
}

.btn-test:hover {
    background-color: #000000;
    color: #ffffff;
}

/* 显示区域 */
.display-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    align-items: start;
}

/* 左侧：数据表格容器 */
.table-container {
    border: 1px solid #000000;
    background-color: #ffffff;
    display: flex;
    flex-direction: column;
    min-height: 300px;
    max-height: 600px;
}

.table-container h3 {
    padding: 15px 20px;
    background-color: #f5f5f5;
    border-bottom: 1px solid #000000;
    font-size: 16px;
    font-weight: bold;
    color: #000000;
    margin: 0;
}

/* 表格滚动容器 */
.table-scroll-container {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    min-height: 200px;
}

/* 自定义滚动条样式 */
.table-scroll-container::-webkit-scrollbar {
    width: 8px;
}

.table-scroll-container::-webkit-scrollbar-track {
    background-color: #f5f5f5;
    border-left: 1px solid #000000;
}

.table-scroll-container::-webkit-scrollbar-thumb {
    background-color: #000000;
    border: none;
}

.table-scroll-container::-webkit-scrollbar-thumb:hover {
    background-color: #333333;
}

/* 数据表格 */
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.data-table th,
.data-table td {
    padding: 8px 12px;
    text-align: left;
    border-bottom: 1px solid #e0e0e0;
}

.data-table th {
    background-color: #f5f5f5;
    font-weight: bold;
    color: #000000;
    border-bottom: 2px solid #000000;
    position: sticky;
    top: 0;
    z-index: 10;
}

.data-table td {
    color: #000000;
}

.data-table tr:hover {
    background-color: #f9f9f9;
}

.number-cell {
    text-align: right;
    font-family: 'Courier New', monospace;
}

/* 清空按钮 */
.btn-clear-all {
    padding: 4px 8px;
    border: 1px solid #000000;
    background-color: #ffffff;
    color: #000000;
    font-size: 12px;
    cursor: pointer;
    outline: none;
}

.btn-clear-all:hover {
    background-color: #000000;
    color: #ffffff;
}

/* 删除按钮 */
.btn-delete {
    padding: 2px 6px;
    border: 1px solid #000000;
    background-color: #ffffff;
    color: #000000;
    font-size: 12px;
    cursor: pointer;
    outline: none;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-delete:hover {
    background-color: #000000;
    color: #ffffff;
}

/* 右侧面板 */
.right-panel {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* 图表容器 */
.chart-container {
    border: 1px solid #000000;
    background-color: #ffffff;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.chart-container h3 {
    font-size: 16px;
    font-weight: bold;
    color: #000000;
    margin-bottom: 15px;
    text-align: center;
}

/* Canvas 样式 - 正方形显示 */
#scatterCanvas {
    border: 1px solid #000000;
    background-color: #ffffff;
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
}

/* 确保Canvas保持正方形比例 */
.chart-container {
    aspect-ratio: 1;
    justify-content: center;
}

#scatterCanvas {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* 统计信息容器 */
.stats-container {
    border: 1px solid #000000;
    background-color: #ffffff;
    padding: 20px;
}

.stats-container h3 {
    font-size: 16px;
    font-weight: bold;
    color: #000000;
    margin-bottom: 15px;
    text-align: center;
    border-bottom: 1px solid #e0e0e0;
    padding-bottom: 10px;
}

.stats-content {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.stat-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid #f0f0f0;
}

.stat-item:last-child {
    border-bottom: none;
}

.stat-item label {
    font-weight: bold;
    color: #000000;
    font-size: 14px;
}

.stat-item span {
    font-family: 'Courier New', monospace;
    color: #000000;
    font-size: 14px;
    font-weight: bold;
    background-color: #f5f5f5;
    padding: 4px 8px;
    border: 1px solid #e0e0e0;
    min-width: 80px;
    text-align: right;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .display-section {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    /* 小设备布局：数据列表在上，图表在中，统计在下 */
    .table-container {
        order: 1;
    }
    
    .right-panel {
        order: 2;
        display: flex;
        flex-direction: column;
        gap: 20px;
    }
    
    .chart-container {
        order: 1;
        aspect-ratio: 1;
    }
    
    .stats-container {
        order: 2;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    .input-left {
        flex-direction: column;
        align-items: stretch;
    }
    
    .input-group input {
        width: 100%;
    }
    
    .button-group {
        justify-content: center;
    }
    
    .header h1 {
        font-size: 24px;
    }
    
    .header p {
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .header h1 {
        font-size: 20px;
    }
    
    .btn {
        padding: 6px 12px;
        font-size: 12px;
    }
    
    .data-table th,
    .data-table td {
        padding: 6px 8px;
        font-size: 12px;
    }
    
    .stat-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }
    
    .stat-item span {
        width: 100%;
        text-align: left;
    }
}

/* 隐藏文件输入 */
input[type="file"] {
    display: none;
}

/* 焦点状态 */
input:focus,
button:focus {
    outline: 2px solid #000000;
    outline-offset: 2px;
}

/* 禁用状态 */
.btn:disabled {
    background-color: #f5f5f5;
    color: #999999;
    border-color: #e0e0e0;
    cursor: not-allowed;
}

.btn:disabled:hover {
    background-color: #f5f5f5;
    color: #999999;
}