/* 基本样式重置 */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f7fa;
    background-image: linear-gradient(to right, rgba(245, 247, 250, 0.8) 1px, transparent 1px),
                      linear-gradient(to bottom, rgba(245, 247, 250, 0.8) 1px, transparent 1px);
    background-size: 20px 20px;
    
    margin: 0 auto;
    font-size:100%;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 主内容区 */
main {
    padding: 40px 0;
}

.app-container {
    display: flex;
    gap: 30px;
    margin-bottom: 30px;
}

/* 左侧边栏 */
.sidebar {
    flex: 0 0 350px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

/* 面板共用样式 */
.panel {
    background: white;
    border-radius: 12px;
    padding: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: box-shadow 0.3s;
    position: relative;
    overflow: hidden;
}

.panel:hover {
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
}

.panel::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #4568dc, #b06ab3);
}

.panel h2 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: #333;
    border-bottom: 1px solid #eee;
    padding-bottom: 15px;
    position: relative;
}

.panel h2::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #4568dc, #b06ab3);
    border-radius: 3px;
}

/* 输入组样式 */
.input-group {
    margin-bottom: 20px;
}

.input-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #444;
}

.input-group input[type="text"],
.input-group select,
.input-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 12.6px;
    transition: all 0.3s;
    background-color: #f9f9f9;
}

.input-group input[type="text"]:focus,
.input-group select:focus,
.input-group textarea:focus {
    border-color: #4568dc;
    outline: none;
    box-shadow: 0 0 0 3px rgba(69, 104, 220, 0.2);
    background-color: white;
}

.checkbox-group {
    display: flex;
    align-items: center;
    position: relative;
    left: -230px;
}

.checkbox-group label {
    display: flex;
    align-items: center;
    cursor: pointer;
    margin-right: 10px;
}

.checkbox-group input[type="checkbox"] {
    margin-right: 2px;
    accent-color: #4568dc;
    width: 16px;
    height: 16px;
}

.csv-options {
    display: flex;
    gap: 15px;
    margin-top: 10px;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    font-size: 13.5px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.btn::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::after {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, #4568dc, #5c7be5);
    color: white;
    box-shadow: 0 5px 15px rgba(69, 104, 220, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #3a56bb, #4d69cd);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(69, 104, 220, 0.4);
}

.btn-primary:disabled {
    background: #a5b1e2;
    cursor: not-allowed;
    box-shadow: none;
}

.btn-secondary {
    background: linear-gradient(135deg, #f0f2f5, #e4e7f0);
    color: #444;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.btn-secondary:hover {
    background: linear-gradient(135deg, #e4e6e9, #d8dce6);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.input-group .btn {
    margin-right: 10px;
}

/* 右侧主要内容区 */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 25px;
    max-width: 800px;
    margin: 0 auto;
}

.chart-container {
    background-color: #fff;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    padding: 25px;
    margin-bottom: 6px;
    transition: box-shadow 0.3s;
    position: relative;
    overflow: hidden;
    max-width: 100%;
    overflow-x: auto;
}

.chart-container::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #4568dc, #b06ab3);
}

.chart-container:hover {
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
}

#chart-wrapper {
    flex: 1;
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    margin: 0 0 20px 0;
    border: 1px solid #e0e0e0;
    padding: 15px;
    background: white;
    transition: all 0.3s ease;
    box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.03);
}

/* 添加图表区域默认背景样式 */
#chart-wrapper:empty {
    background-image: url("data:image/svg+xml,%3Csvg width='100%25' height='100%25' xmlns='http://www.w3.org/2000/svg'%3E%3Cdefs%3E%3ClinearGradient id='grad' x1='0%25' y1='0%25' x2='100%25' y2='100%25'%3E%3Cstop offset='0%25' style='stop-color:%23f0f4ff;stop-opacity:1' /%3E%3Cstop offset='100%25' style='stop-color:%23eef4ff;stop-opacity:1' /%3E%3C/linearGradient%3E%3Cpattern id='grid' width='40' height='40' patternUnits='userSpaceOnUse'%3E%3Cpath d='M 0 10 L 40 10 M 10 0 L 10 40 M 0 20 L 40 20 M 20 0 L 20 40 M 0 30 L 40 30 M 30 0 L 30 40' fill='none' stroke='%23e0e0e0' stroke-width='0.5'/%3E%3C/pattern%3E%3C/defs%3E%3Crect width='100%25' height='100%25' fill='url(%23grad)'/%3E%3Crect width='100%25' height='100%25' fill='url(%23grid)'/%3E%3Ctext x='50%25' y='50%25' font-family='Arial, sans-serif' font-size='16' font-weight='bold' text-anchor='middle' fill='%23aaaaaa' dominant-baseline='middle'%3E选择数据并点击"生成图表"%3C/text%3E%3Cg transform='translate(50%25, 40%25)'%3E%3Cpath d='M-40,-30 L-40,30 L40,30' stroke='%234568dc' stroke-width='2' fill='none' stroke-opacity='0.3'/%3E%3Ccircle cx='-20' cy='10' r='5' fill='%234568dc' fill-opacity='0.3'/%3E%3Ccircle cx='0' cy='-10' r='5' fill='%234568dc' fill-opacity='0.3'/%3E%3Ccircle cx='20' cy='0' r='5' fill='%234568dc' fill-opacity='0.3'/%3E%3Cpath d='M-20,10 L0,-10 L20,0' stroke='%234568dc' stroke-width='2' fill='none' stroke-opacity='0.3'/%3E%3C/g%3E%3C/svg%3E");
    background-size: cover;
    background-position: center;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.chart-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-bottom: 20px;
    padding: 0 0 15px 0;
    border-bottom: 1px solid #e0e0e0;
}

/* 提示面板 */
.tips-panel {
    background: white;
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    position: relative;
    overflow: hidden;
    max-width: 100%;
    overflow-x: auto;
}

.tips-panel::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #4568dc, #b06ab3);
}

.tips-panel h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: #333;
    position: relative;
    padding-bottom: 10px;
}

.tips-panel h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: linear-gradient(90deg, #4568dc, #b06ab3);
    border-radius: 3px;
}

.tips-panel ul {
    padding-left: 20px;
}

.tips-panel li {
    margin-bottom: 10px;
    color: #555;
    position: relative;
}

.tips-panel li::before {
    content: '';
    position: absolute;
    left: -20px;
    top: 8px;
    width: 8px;
    height: 8px;
    background: linear-gradient(135deg, #4568dc, #b06ab3);
    border-radius: 50%;
}

/* 响应式设计 */
@media (max-width: 900px) {
    .app-container {
        flex-direction: column;
    }
    
    .sidebar {
        flex: initial;
        width: 100%;
    }
    
    .chart-container {
        height: 400px;
    }
}

/* 数据格式切换相关样式 */
#simple-data-container,
#series-data-container,
#csv-data-container {
    transition: all 0.3s ease;
}

/* 图表导出loading效果 */
.loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    backdrop-filter: blur(3px);
}

.loading-spinner {
    width: 45px;
    height: 45px;
    border: 4px solid rgba(69, 104, 220, 0.3);
    border-radius: 50%;
    border-top: 4px solid #4568dc;
    animation: spin 1s linear infinite;
    box-shadow: 0 0 10px rgba(69, 104, 220, 0.2);
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 通知弹窗样式 */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 15px 25px;
    background: linear-gradient(135deg, #4caf50, #45a049);
    color: white;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    z-index: 100;
    opacity: 0;
    transform: translateY(-20px);
    transition: all 0.3s;
}

.notification.show {
    opacity: 1;
    transform: translateY(0);
}

.notification.error {
    background: linear-gradient(135deg, #f44336, #e53935);
}

/* 添加引导动画 */
@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(69, 104, 220, 0.6); }
    70% { box-shadow: 0 0 0 12px rgba(69, 104, 220, 0); }
    100% { box-shadow: 0 0 0 0 rgba(69, 104, 220, 0); }
}

#generate-btn {
    animation: pulse 2s infinite;
}

/* 图表类型画廊 */
.chart-type-gallery {
    margin-top: 25px;
    border-top: 1px solid #e0e0e0;
    padding-top: 20px;
}

.chart-type-gallery h3 {
    font-size: 1.08rem;
    margin-bottom: 15px;
    color: #333;
    position: relative;
    display: inline-block;
    padding-bottom: 8px;
}

.chart-type-gallery h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, #4568dc, #b06ab3);
    border-radius: 3px;
}

.chart-type-scroller {
    overflow-x: auto;
    white-space: nowrap;
    padding-bottom: 15px;
    /* 自定义滚动条 */
    scrollbar-width: thin;
    scrollbar-color: #ccc #f0f0f0;
}

.chart-type-scroller::-webkit-scrollbar {
    height: 8px;
}

.chart-type-scroller::-webkit-scrollbar-track {
    background: #f0f0f0;
    border-radius: 10px;
}

.chart-type-scroller::-webkit-scrollbar-thumb {
    background: linear-gradient(90deg, #4568dc, #b06ab3);
    border-radius: 10px;
}

.chart-type-group {
    display: inline-block;
    vertical-align: top;
    margin-right: 25px;
    min-width: 250px;
}

.chart-type-group h4 {
    font-size: 15.3px;
    margin: 0 0 12px 0;
    color: #444;
    border-bottom: 1px dashed #e0e0e0;
    padding-bottom: 8px;
}

.chart-type-items {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.chart-type-item {
    width: 85px;
    text-align: center;
    cursor: pointer;
    transition: box-shadow 0.3s, background-color 0.3s;
    border-radius: 8px;
    padding: 10px 5px;
    background-color: #f9f9f9;
    box-shadow: 0 3px 8px rgba(0,0,0,0.05);
}

.chart-type-item:hover {
    background-color: #f0f8ff;
    box-shadow: 0 8px 15px rgba(0,0,0,0.1);
}

.chart-type-item.active {
    background: linear-gradient(135deg, #e6f2ff, #eef8ff);
    border: 1px solid #b3d7ff;
    box-shadow: 0 5px 15px rgba(69, 104, 220, 0.15);
}

.chart-type-item img {
    width: 60px;
    height: 60px;
    object-fit: contain;
    margin-bottom: 8px;
    border-radius: 4px;
    background: white;
    padding: 3px;
    border: 1px solid #eee;
}

.chart-type-item span {
    display: block;
    font-size: 11.7px;
    color: #444;
    white-space: normal;
    line-height: 1.3;
}

/* 添加canvas样式 */
canvas#chart-canvas {
    height: 450px !important;
}

/* 为canvas添加默认背景，但在绘制图表时不显示背景 */
canvas#chart-canvas:not([data-chart-rendered]) {
    background-image: url("data:image/svg+xml,%3Csvg width='100%25' height='100%25' xmlns='http://www.w3.org/2000/svg'%3E%3Cdefs%3E%3ClinearGradient id='grad' x1='0%25' y1='0%25' x2='100%25' y2='100%25'%3E%3Cstop offset='0%25' style='stop-color:%23f0f4ff;stop-opacity:1' /%3E%3Cstop offset='100%25' style='stop-color:%23eef4ff;stop-opacity:1' /%3E%3C/linearGradient%3E%3Cpattern id='grid' width='40' height='40' patternUnits='userSpaceOnUse'%3E%3Cpath d='M 0 10 L 40 10 M 10 0 L 10 40 M 0 20 L 40 20 M 20 0 L 20 40 M 0 30 L 40 30 M 30 0 L 30 40' fill='none' stroke='%23e0e0e0' stroke-width='0.5'/%3E%3C/pattern%3E%3C/defs%3E%3Crect width='100%25' height='100%25' fill='url(%23grad)'/%3E%3Crect width='100%25' height='100%25' fill='url(%23grid)'/%3E%3Cg transform='translate(50%25, 50%25)'%3E%3Cpath d='M-40,-30 L-40,30 L40,30' stroke='%234568dc' stroke-width='2' fill='none' stroke-opacity='0.3'/%3E%3Ccircle cx='-20' cy='10' r='5' fill='%234568dc' fill-opacity='0.3'/%3E%3Ccircle cx='0' cy='-10' r='5' fill='%234568dc' fill-opacity='0.3'/%3E%3Ccircle cx='20' cy='0' r='5' fill='%234568dc' fill-opacity='0.3'/%3E%3Cpath d='M-20,10 L0,-10 L20,0' stroke='%234568dc' stroke-width='2' fill='none' stroke-opacity='0.3'/%3E%3C/g%3E%3C/svg%3E");
    background-size: cover;
    background-position: center;
}

/* 确保有data-chart-rendered属性的canvas没有背景图 */
canvas#chart-canvas[data-chart-rendered] {
    background-image: none !important;
}

/* 美化文件上传控件 */
.input-group input[type="file"] {
    width: 0.1px;
    height: 0.1px;
    opacity: 0;
    overflow: hidden;
    position: absolute;
    z-index: -1;
}

.input-group input[type="file"] + label {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px 15px;
    border-radius: 8px;
    background: linear-gradient(135deg, #f0f2f5, #e4e7f0);
    color: #444;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
    margin-bottom: 0;
    text-align: center;
    width: 100%;
}

.input-group input[type="file"] + label:hover {
    background: #e9ecef;
    border-color: #adb5bd;
}

.input-group input[type="file"] + label::before {
    content: '\f07c'; /* Use Font Awesome icon code for folder */
    font-family: "Font Awesome 5 Free"; /* Ensure Font Awesome is loaded */
    font-weight: 900;
    margin-right: 8px;
    display: inline-block; /* Ensure icon aligns properly */
}

/* 新增的页面头部样式 */
.page-header {
    background-color: #f8f9fa;
    padding: 12px 20px;
    border-bottom: 1px solid #e3e6f0;
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    position: relative;
}

.page-header .header-link {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    color: #5a5c69;
    font-weight: 500;
    font-size: 14px;
    transition: color 0.2s ease-in-out;
}

.page-header .header-link:hover {
    color: #4e73df;
}

.page-header .header-link img {
    margin-right: 8px;
    height: 18px;
    width: 18px;
}

.page-header .header-link .fehelper-text {
    font-weight: 700;
}

.page-header .page-title-suffix {
    margin-left: 8px;
    font-size: 14px;
    font-weight: 500;
} 
/* Style for the "Explore More Tools" button */
.page-header>a.x-other-tools {
    margin: 0; /* Reset margin */
    font-size: 12px; /* Slightly smaller */
    cursor: pointer;
    text-decoration: none;
    -webkit-user-select: none;
    user-select: none;
    color: #495057; /* Grey text */
    background-color: #f8f9fa; /* Light grey background */
    padding: 6px 12px; /* Adjusted padding */
    border-radius: 6px; /* Standard rounded corners */
    border: 1px solid #dee2e6; /* Match border color */
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    white-space: nowrap;
    position: absolute;
    right: 10px;
}

.page-header>a.x-other-tools .icon-plus-circle {
    display: inline-block;
    width: 14px; /* Slightly smaller icon */
    height: 14px;
    background: url(../static/img/plus-circle.svg) no-repeat center center;
    background-size: contain;
    margin-right: 4px;
}

.page-header>a.x-other-tools .tool-market-badge {
    display: inline-block;
    background-color: #007bff; /* Match theme blue */
    color: white;
    padding: 2px 7px;
    border-radius: 4px; /* Slightly less round */
    margin-left: 6px;
    font-size: 11px; /* Smaller badge text */
    font-weight: 500;
}

.page-header>a.x-other-tools:hover {
    color: #212529;
    background-color: #e9ecef;
    border-color: #ced4da;
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
    transform: none; /* Remove translateY */
}
/* 保持原有的顶部导航样式 */
.x-donate-link {
    font-size: 14px;
    font-weight: 500;
    color: #2563eb;
    cursor: pointer;
    text-decoration: none;
    border: none;
    margin-left: 70px;
    white-space: nowrap;
    margin-right: auto;
    padding: 5px 16px;
    border-radius: 20px;
    background-color: #eff6ff;
    transition: all 0.2s ease;
    position: relative;
    display: inline-flex;
    align-items: center;
    box-shadow: 0 1px 2px rgba(37, 99, 235, 0.1);
}

.x-donate-link:hover {
    background-color: #dbeafe;
    color: #1d4ed8;
    text-decoration: none;
    box-shadow: 0 2px 4px rgba(37, 99, 235, 0.15);
    transform: translateY(-1px);
}

.x-donate-link {
    margin: 0 10px;
    font-size: 12px;
    font-weight: normal;
    position: absolute;
    right: 220px;
}