/* ============================================
   tooluse.css - 生信分析工具公共样式（优化版）
   模块：全局样式 | 布局组件 | 表单控件 | 表格预览 | 图表下载 | 侧边栏工具集 | 响应式
   ============================================ */

/* -------------------- 1. 全局变量与重置 -------------------- */
:root {
    --primary: #2c7da0;
    --primary-hover: #1f5e7e;
    --bg-light: #f8fafc;
    --border-color: #cfdfed;
    --text-dark: #1a3e50;
    --text-muted: #5a6874;
    --danger: #dc2626;
    --success: #10b981;
    --warning: #b45309;
    --warning-bg: #fff4e6;
    --focus-ring: 0 0 0 3px rgba(44,125,160,0.25);
}

* {
    box-sizing: border-box;
}

body {
    background: #eef2f5;
    margin: 0;
    padding: 0;
    font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
}

/* 焦点样式增强（可访问性） */
:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

/* -------------------- 2. 主布局结构 -------------------- */
.dashboard {
    max-width: 1600px;
    margin: 0 auto;
    background: #ffffff;
    border-radius: 24px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    overflow: hidden;
}

.main-layout {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    padding: 1.8rem 0rem;
}

.controls-panel {
    flex: 1.2;
    min-width: 320px;
    background: var(--bg-light);
    border-radius: 24px;
    padding: 1.2rem;
    border: 1px solid #e9edf2;
    height: fit-content;
}

.chart-panel {
    flex: 3;
    min-width: 500px;
    position: relative;  /* 为内部绝对定位下载按钮提供锚点 */
}

/* 工具头部 */
.tool-header {
    background: #ffffff;
    padding: 1.2rem 2rem;
    border-bottom: 1px solid #e9ecef;
}

.tool-header h1 {
    margin: 0;
    font-size: 1.6rem;
    font-weight: 600;
    color: var(--text-dark);
}

.tool-header p {
    margin: 0.3rem 0 0;
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* 双栏上传区 */
.upload-row {
    display: flex;
    gap: 1.5rem;
    padding: 1.5rem 2rem;
    background: #fbfdff;
    border-bottom: 1px solid #e9ecef;
    flex-wrap: wrap;
}

.upload-card {
    flex: 1;
    min-width: 280px;
    background: var(--bg-light);
    border-radius: 20px;
    padding: 1rem 1.2rem;
    border: 1px solid #e2edf2;
}

.upload-card h3 {
    font-size: 1rem;
    margin: 0 0 0.5rem 0;
}

/* 工具侧边栏 + 网格布局 (工具库页面) */
.tools-layout {
    display: flex;
    gap: 30px;
    max-width: 1280px;
    margin: 0 auto;
    /* padding: 20px 20px 20px 10px; */
    padding: 2% 2% 2% 1%;
}

.tools-sidebar {
    width: 235px;
    flex-shrink: 0;
    background: white;
    border-radius: 20px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    padding: 20px 0;
    height: fit-content;
}

.sidebar-header {
    padding: 0 20px 15px;
    border-bottom: 1px solid #e5e7eb;
    font-size: 1.1rem;
    font-weight: 600;
    color: #1f2937;
}

.tools-main {
    flex: 1;
    min-width: 0;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

/* -------------------- 3. 工具卡片样式 -------------------- */
.tool-card {
    background: white;
    border-radius: 16px;
    padding: 16px;
    cursor: pointer;
    transition: all 0.2s;
    border: 1px solid #e5e7eb;
    display: flex;
    gap: 15px;
}

.tool-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px -12px rgba(0,0,0,0.2);
    border-color: #c7d2fe;
}

.tool-logo {
    width: 60px;
    height: 60px;
    background: #f3f4f6;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    overflow: hidden;
}

.tool-logo-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.tool-info {
    flex: 1;
}

.tool-info h3 {
    margin: 0 0 8px;
    font-size: 1rem;
    color: #1f2937;
}

.tool-info p {
    margin: 0 0 8px;
    font-size: 0.8rem;
    color: #6b7280;
    line-height: 1.4;
}

.tool-meta {
    display: flex;
    gap: 12px;
    font-size: 0.7rem;
    flex-wrap: wrap;
    align-items: center;
}

.tool-price,
.tool-membership,
.tool-usage {
    padding: 2px 8px;
    border-radius: 20px;
}

.tool-price {
    background: #e0e7ff;
    color: #4338ca;
}

.tool-membership {
    background: #fef3c7;
    color: #b45309;
}

.tool-usage {
    background: #f3f4f6;
    color: #6b7280;
}

/* -------------------- 4. 表单与控件元素 -------------------- */
.param-group,
.form-group {
    margin-bottom: 1.2rem;
}

.param-group label,
.form-group label {
    display: block;
    font-weight: 600;
    font-size: 0.85rem;
    margin-bottom: 0.3rem;
    color: var(--text-dark);
}

.required-star {
    color: var(--danger);
    margin-left: 4px;
}

.help-text {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 0.2rem;
}

input, select, textarea {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border-radius: 28px;
    border: 1px solid var(--border-color);
    background: white;
    font-size: 0.85rem;
    transition: border 0.2s, box-shadow 0.2s;
}

input:focus, select:focus, textarea:focus {
    border-color: var(--primary);
    box-shadow: var(--focus-ring);
}

input[type="checkbox"] {
    width: auto;
    margin-right: 8px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    font-weight: normal;
}

.number-input {
    width: 80px;
    text-align: center;
}

.slider-group {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.8rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.slider-group label {
    flex: 1;
    font-size: 0.85rem;
    font-weight: 500;
}

.slider-group input {
    flex: 2;
    width: auto;
}

.value-display {
    background: #eef2f5;
    padding: 0.2rem 0.6rem;
    border-radius: 20px;
    font-size: 0.8rem;
    min-width: 3rem;
    text-align: center;
}

/* 文件上传标签 */
.file-label {
    display: inline-block;
    background: var(--primary);
    color: white;
    padding: 0.4rem 1rem;
    border-radius: 30px;
    cursor: pointer;
    font-size: 0.8rem;
    margin-top: 6px;
    transition: background 0.2s;
}

.file-label:hover {
    background: var(--primary-hover);
}

.status-msg {
    font-size: 0.75rem;
    color: var(--primary);
    margin-top: 6px;
}

/* -------------------- 5. 按钮样式 -------------------- */
button {
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 40px;
    padding: 0.45rem 1.2rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
}

button:hover:not(:disabled) {
    background: var(--primary-hover);
    transform: translateY(-1px);
}

button.secondary {
    background: #6c757d;
}

button.danger {
    background: var(--danger);
}

button.danger:hover:not(:disabled) {
    background: #b91c1c;
}

button:disabled {
    background: #9ca3af;
    cursor: not-allowed;
    transform: none;
}

.btn-primary {
    width: 100%;
    margin-top: 1rem;
    padding: 0.6rem;
    font-size: 1rem;
}

/* -------------------- 6. 表格预览区（滚动） -------------------- */
.data-preview {
    max-height: 260px;
    overflow: auto;
    margin-top: 10px;
    font-size: 0.7rem;
    background: white;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.file-preview-area {
    margin-top: 12px;
    border-top: 1px solid #e2edf2;
    padding-top: 10px;
}

.preview-table-container {
    max-height: 250px;
    overflow-x: auto;
    overflow-y: auto;
    font-size: 0.7rem;
    border: 1px solid #e2edf2;
    border-radius: 8px;
    background: white;
}

.preview-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 500px;
}

.preview-table th,
.preview-table td {
    padding: 6px 10px;
    border: 1px solid #ddd;
    white-space: nowrap;
}

.preview-table th {
    background: #f1f5f9;
    cursor: pointer;
    user-select: none;
}

.preview-table th:hover {
    background: #e2e8f0;
}

/* -------------------- 7. 自定义配色面板 -------------------- */
.color-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px;
    margin: 12px 0;
}

.color-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: white;
    padding: 6px 12px;
    border-radius: 28px;
    border: 1px solid #e2e8f0;
    transition: 0.2s;
}

.color-item .cat-name {
    font-size: 0.8rem;
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 120px;
}

.color-controls {
    display: flex;
    gap: 8px;
    align-items: center;
}

.cat-color-picker {
    width: 32px;
    height: 32px;
    border: none;
    cursor: pointer;
    background: transparent;
    padding: 0;
    border-radius: 6px;
}

.color-text-input {
    width: 80px;
    padding: 4px 6px;
    font-size: 0.7rem;
    font-family: monospace;
    border-radius: 20px;
    border: 1px solid #cbd5e1;
    text-align: center;
}

.bg-color-config {
    margin-top: 12px;
    border-top: 1px solid #e2e8f0;
    padding-top: 10px;
}

.bg-color-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 6px;
    font-size: 0.75rem;
}

.bg-color-item input {
    width: 70px;
}

/* -------------------- 8. 图表与下载组件 -------------------- */
.chart-container {
    width: 100%;
    height: 600px;
    background: #ffffff;
    border-radius: 20px;
    border: 1px solid #e5e7eb;
}

.custom-download,
.single-download {
    position: absolute;
    top: 12px;
    right: 12px;
    z-index: 10;
}

.download-btn {
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: 30px;
    padding: 6px 12px;
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    transition: 0.2s;
}

.download-btn:hover {
    background: #f1f5f9;
    border-color: var(--primary);
}

.download-menu {
    position: absolute;
    top: 40px;
    right: 0;
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    overflow: hidden;
    display: none;
    z-index: 101;
}

.download-menu.show {
    display: block;
}

.download-menu div {
    padding: 8px 16px;
    cursor: pointer;
    font-size: 0.8rem;
    transition: background 0.1s;
}

.download-menu div:hover {
    background: #f1f5f9;
}

/* 分组图表网格 */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(500px, 1fr));
    gap: 1.2rem;
    margin-top: 1rem;
}

.chart-card {
    background: #fff;
    border-radius: 20px;
    border: 1px solid #e9edf2;
    overflow: hidden;
    position: relative;
    display: flex;
    flex-direction: column;
}

.chart-header {
    background: #f8fafc;
    padding: 0.5rem 1rem;
    font-weight: 600;
    border-bottom: 1px solid #e9edf2;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.group-download-btn {
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: 30px;
    padding: 4px 10px;
    font-size: 0.75rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: 0.2s;
}

.group-download-btn:hover {
    background: #f1f5f9;
    border-color: var(--primary);
}

.group-download-menu {
    position: absolute;
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    overflow: hidden;
    z-index: 10;
}

.group-download-menu div {
    padding: 4px 12px;
    cursor: pointer;
    font-size: 0.7rem;
}

.group-download-menu div:hover {
    background: #f1f5f9;
}

/* -------------------- 9. 状态提示与辅助组件 -------------------- */
.stats-badge {
    background: #e9f0f5;
    border-radius: 20px;
    padding: 0.3rem 0.8rem;
    font-size: 0.7rem;
    display: inline-block;
}

.warning-tip {
    color: var(--warning);
    background: var(--warning-bg);
    border-radius: 16px;
    padding: 0.2rem 0.8rem;
    font-size: 0.7rem;
    margin-top: 6px;
}

.alert {
    border-radius: 20px;
    padding: 0.75rem 1rem;
    margin-bottom: 1rem;
}

.alert-error {
    background: #fee2e2;
    color: #b91c1c;
    border: 1px solid #fecaca;
}

.alert-success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.info-card {
    background: #f9fafb;
    border-radius: 20px;
    padding: 1.2rem;
    border: 1px solid #e2edf2;
}

.loading {
    display: inline-block;
    width: 1rem;
    height: 1rem;
    border: 2px solid #fff;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 0.6s linear infinite;
    margin-right: 0.5rem;
}

.toast-message {
    position: fixed;
    bottom: 20px;
    right: 20px;
    padding: 10px 20px;
    border-radius: 8px;
    color: white;
    z-index: 1000;
    animation: fadeIn 0.3s;
}

.toast-success {
    background: var(--success);
}

.toast-error {
    background: #ef4444;
}

/* 搜索栏与分类列表 */
.search-wrapper {
    flex: 1;
    max-width: 400px;
}

.search-container {
    position: relative;
}

.search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1rem;
    pointer-events: none;
}

.search-container input {
    width: 100%;
    padding: 10px 35px 10px 35px;
    border: 1px solid #d1d5db;
    border-radius: 30px;
    font-size: 0.9rem;
}

.clear-btn {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    color: #9ca3af;
    display: none;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    padding: 0;
    transition: none;           /* 禁止过渡动画 */
}

.clear-btn.visible {
    display: flex;
}

/* 关键：悬停时没有任何变化 */
.clear-btn:hover,
.clear-btn:focus,
.clear-btn:active {
    background: none !important;      /* 强制无背景色变化 */
    transform: translateY(-50%) !important;  /* 保持垂直居中，不额外移动 */
    color: #9ca3af !important;        /* 文字颜色不变 */
    box-shadow: none !important;
    outline: none;
    cursor: pointer;
}


.category-list {
    list-style: none;
    margin: 0;
    padding: 10px 0;
}

.category-item {
    padding: 12px 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: all 0.2s;
    color: #4b5563;
}

.category-item:hover {
    background: #f3f4f6;
}

.category-item.active {
    background: linear-gradient(90deg, #e0e7ff 0%, #ffffff 100%);
    color: #4f46e5;
    border-left: 3px solid #4f46e5;
    font-weight: 500;
}

.cat-icon {
    font-size: 1.1rem;
}

.cat-count {
    margin-left: auto;
    font-size: 0.75rem;
    background: #e5e7eb;
    padding: 2px 8px;
    border-radius: 20px;
    color: #6b7280;
}

.category-item.active .cat-count {
    background: #c7d2fe;
    color: #4338ca;
}

.tools-header-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    flex-wrap: wrap;
    gap: 15px;
}

/* 加载错误占位 */
.loader-wrapper,
.no-tools,
.error-wrapper {
    text-align: center;
    padding: 60px;
    color: #6b7280;
}

/* -------------------- 10. 动画与响应式 -------------------- */
@keyframes spin {
    to { transform: rotate(360deg); }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@media (min-width: 1600px) {
    .dashboard {
        max-width: 100%;       /* 或 100%，两侧留5%白边 */
        padding: 0 30px;
    }
}

/* 大屏幕优化 */
@media (min-width: 1400px) {
    .tools-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (min-width: 1000px) and (max-width: 1399px) {
    .tools-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 700px) and (max-width: 999px) {
    .tools-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 850px) {
    .main-layout {
        flex-direction: column;
    }
    .chart-container {
        min-height: 400px;
    }
}

@media (max-width: 768px) {
    .tools-layout {
        flex-direction: column;
        padding: 15px;
    }
    .tools-sidebar {
        width: 100%;
    }
    .category-list {
        display: flex;
        overflow-x: auto;
        gap: 8px;
        padding: 10px;
    }
    .category-item {
        white-space: nowrap;
    }
    .tools-header-bar {
        flex-direction: column;
        align-items: stretch;
    }
    .search-wrapper {
        max-width: none;
    }
    .slider-group {
        flex-wrap: wrap;
    }
}

@media (max-width: 699px) {
    .tools-grid {
        grid-template-columns: 1fr;
    }
}