/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "LXGW WenKai", sans-serif;
    font-weight: normal;
    height: 100vh;
    background: #fafafa;
    overflow: hidden;
    transition: all 0.3s ease;
}

body.dark {
    background: #0d1117;
}

/* 容器样式 */
.container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    max-width: 1400px;
    margin: 0 auto;
    background: #ffffff;
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.container.dark {
    background: #21262d;
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.5);
}

/* 工具栏样式 */
.toolbar {
    display: flex;
    align-items: center;
    padding: 8px 20px;
    background: #f0f0f0;
    border-bottom: 1px solid #e0e0e0;
    gap: 12px;
    flex-wrap: wrap;
    min-height: 40px;
    transition: all 0.3s ease;
}

.toolbar.dark {
    background: #30363d;
    border-bottom: 1px solid #21262d;
}

.toolbar-btn {
    background: none;
    border: none;
    color: #777777;
    padding: 4px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 0;
}

.toolbar-btn svg {
    width: 16px;
    height: 16px;
}

.toolbar-btn:hover {
    color: #555555;
    background: #e0e0e0;
}

.toolbar-btn:active {
    color: #333333;
}

.toolbar.dark .toolbar-btn {
    color: #8b949e;
}

.toolbar.dark .toolbar-btn:hover {
    color: #f0f6fc;
    background: #21262d;
}

.toolbar.dark .toolbar-btn:active {
    color: #f0f6fc;
}

.toolbar-separator {
    width: 1px;
    height: 20px;
    background: #d0d0d0;
    margin: 0 4px;
}

.toolbar.dark .toolbar-separator {
    background: #6e7681;
}

.theme-toggle {
    margin-left: auto;
}

/* 导出按钮组样式 */
.export-buttons {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* 自定义弹窗样式 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    transition: opacity 0.3s ease;
}

.modal-overlay.show {
    display: flex;
    opacity: 1;
}

.modal {
    background: #ffffff;
    border-radius: 0;
    padding: 0;
    min-width: 320px;
    max-width: 400px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.modal-overlay.show .modal {
    transform: scale(1);
}

.modal.dark {
    background: #21262d;
    color: #c9d1d9;
}

.modal-header {
    padding: 20px 24px 16px 24px;
    border-bottom: 1px solid #e0e0e0;
    display: flex;
    align-items: center;
    gap: 12px;
}

.modal.dark .modal-header {
    border-bottom: 1px solid #30363d;
}

.modal-icon {
    width: 24px;
    height: 24px;
    color: #dc3545;
}

.modal-title {
    font-size: 18px;
    font-weight: 600;
    color: #333333;
    margin: 0;
}

.modal.dark .modal-title {
    color: #f0f6fc;
}

.modal-body {
    padding: 20px 24px;
    color: #666666;
    line-height: 1.5;
}

.modal.dark .modal-body {
    color: #8b949e;
}

.modal-footer {
    padding: 16px 24px 20px 24px;
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    border-top: 1px solid #e0e0e0;
}

.modal.dark .modal-footer {
    border-top: 1px solid #30363d;
}

.modal-btn {
    padding: 8px 16px;
    border: 1px solid #d0d0d0;
    background: #ffffff;
    color: #666666;
    cursor: pointer;
    font-family: "LXGW WenKai", sans-serif;
    font-size: 14px;
    transition: all 0.2s ease;
    min-width: 80px;
}

.modal-btn:hover {
    background: #f0f0f0;
    color: #333333;
}

.modal-btn.danger {
    background: #dc3545;
    color: white;
    border-color: #dc3545;
}

.modal-btn.danger:hover {
    background: #c82333;
    border-color: #c82333;
}

.modal.dark .modal-btn {
    background: #21262d;
    color: #c9d1d9;
    border-color: #30363d;
}

.modal.dark .modal-btn:hover {
    background: #30363d;
    color: #f0f6fc;
}




}

/* PWA安装弹窗样式 */
.install-modal {
    min-width: 400px;
    max-width: 450px;
}

.install-modal .modal-icon {
    color: #2196F3;
}

.install-modal .modal-body ul {
    margin: 15px 0;
    padding-left: 0;
    list-style: none;
}

.install-modal .modal-body li {
    margin: 8px 0;
    padding-left: 0;
    font-size: 14px;
    line-height: 1.5;
}

.modal-btn.primary {
    background: #2196F3;
    color: white;
    border-color: #2196F3;
}

.modal-btn.primary:hover {
    background: #1976D2;
    border-color: #1976D2;
}

/* PWA安装弹窗样式 */
.install-modal {
    min-width: 400px;
    max-width: 450px;
}

.install-modal .modal-icon {
    color: #2196F3;
}

.install-modal .modal-body ul {
    margin: 15px 0;
    padding-left: 0;
    list-style: none;
}

.install-modal .modal-body li {
    margin: 8px 0;
    padding-left: 0;
    font-size: 14px;
    line-height: 1.5;
}

.modal-btn.primary {
    background: #2196F3;
    color: white;
    border-color: #2196F3;
}

.modal-btn.primary:hover {
    background: #1976D2;
    border-color: #1976D2;
}

.modal.dark .modal-btn.primary {
    background: #2196F3;
    color: white;
    border-color: #2196F3;
}

.modal.dark .modal-btn.primary:hover {
    background: #1976D2;
    border-color: #1976D2;
}

/* 主要内容区域 */
.main-content {
    display: flex;
    flex: 1;
    overflow: hidden;
}

.editor-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    border-right: 1px solid #e0e0e0;
    transition: all 0.3s ease;
}

.editor-panel.dark {
    border-right: 1px solid #30363d;
}

.preview-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: #fdfdfd;
    transition: all 0.3s ease;
}

.preview-panel.dark {
    background: #0d1117;
}

.panel-header {
    padding: 12px 20px;
    background: #f5f5f5;
    border-bottom: 1px solid #e0e0e0;
    font-weight: 600;
    color: #666666;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.panel-header.dark {
    background: #21262d;
    border-bottom: 1px solid #30363d;
    color: #8b949e;
}

/* 字数统计样式 */
.word-count {
    margin-left: auto;
    font-size: 12px;
    color: #888888;
    font-weight: normal;
    text-transform: none;
    letter-spacing: normal;
}

.panel-header.dark .word-count {
    color: #6e7681;
}

/* 编辑器样式 */
#markdown-input {
    flex: 1;
    border: none;
    outline: none;
    padding: 20px;
    font-family: "LXGW WenKai", 'Consolas', 'Monaco', monospace;
    font-size: 16px;
    line-height: 1.6;
    resize: none;
    background: #fefefe;
    color: #444444;
    transition: all 0.3s ease;
}

#markdown-input.dark {
    background: #0d1117;
    color: #c9d1d9;
}

#markdown-input::placeholder {
    color: #aaaaaa;
    font-style: italic;
}

#markdown-input.dark::placeholder {
    color: #6e7681;
}

/* 预览区域样式 */
#preview {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    line-height: 1.7;
    color: #444444;
    transition: all 0.3s ease;
}

#preview.dark {
    color: #c9d1d9;
}

/* Markdown样式 */
#preview h1, #preview h2, #preview h3, #preview h4, #preview h5, #preview h6 {
    margin: 0.5em 0 0.5em 0;
    color: #555555;
    font-weight: 600;
    transition: all 0.3s ease;
}

#preview.dark h1, #preview.dark h2, #preview.dark h3, #preview.dark h4, #preview.dark h5, #preview.dark h6 {
    color: #f0f6fc;
}

/* 第一个元素的特殊处理 */
#preview > h1:first-child,
#preview > h2:first-child,
#preview > h3:first-child,
#preview > h4:first-child,
#preview > h5:first-child,
#preview > h6:first-child,
#preview > p:first-child {
    margin-top: 0;
}

#preview h1 {
    font-size: 2.2em;
    border-bottom: 3px solid #aaaaaa;
    padding-bottom: 10px;
}

#preview.dark h1 {
    border-bottom: 3px solid #30363d;
}

#preview h2 {
    font-size: 1.8em;
    border-bottom: 2px solid #bbbbbb;
    padding-bottom: 8px;
}

#preview.dark h2 {
    border-bottom: 2px solid #21262d;
}

#preview h3 {
    font-size: 1.5em;
    color: #777777;
}

#preview.dark h3 {
    color: #8b949e;
}

#preview p {
    margin: 0.8em 0;
    text-align: justify;
}

#preview blockquote {
    border-left: 4px solid #3498db;
    margin: 1.5em 0;
    padding: 0.5em 1em;
    background: #ecf0f1;
    font-style: italic;
    transition: all 0.3s ease;
}

#preview.dark blockquote {
    border-left: 4px solid #5dade2;
    background: #34495e;
    color: #ecf0f1;
}

#preview code {
    background: #f8f9fa;
    padding: 2px 6px;
    border-radius: 0;
    font-family: 'Consolas', 'Monaco', monospace;
    color: #e74c3c;
    font-size: 0.9em;
    transition: all 0.3s ease;
}

#preview.dark code {
    background: #34495e;
    color: #f39c12;
}

/* 代码块样式 */
.code-block-container {
    position: relative;
    margin: 1.5em 0;
}

.code-block-header {
    background: #f8f9fa;
    color: #495057;
    padding: 8px 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    border-bottom: 1px solid #e9ecef;
    transition: all 0.3s ease;
}

#preview.dark .code-block-header {
    background: #2c3e50;
    color: #bdc3c7;
    border-bottom: 1px solid #1a252f;
}

.code-language {
    font-family: 'Consolas', 'Monaco', monospace;
    color: #6c757d;
    text-transform: uppercase;
    font-weight: 500;
}

#preview.dark .code-language {
    color: #95a5a6;
}

.code-copy-btn {
    background: none;
    border: 1px solid #ced4da;
    color: #495057;
    padding: 4px 8px;
    cursor: pointer;
    font-size: 11px;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 4px;
}

.code-copy-btn:hover {
    background: #e9ecef;
    color: #212529;
}

#preview.dark .code-copy-btn {
    border-color: #5a6c7d;
    color: #bdc3c7;
}

#preview.dark .code-copy-btn:hover {
    background: #5a6c7d;
    color: #ecf0f1;
}

.code-copy-btn svg {
    width: 12px;
    height: 12px;
}

#preview pre {
    background: #f8f9fa;
    color: #495057;
    padding: 1.5em;
    border-radius: 0;
    overflow-x: auto;
    margin: 0;
    transition: all 0.3s ease;
    border: 1px solid #e9ecef;
    border-top: none;
}

#preview.dark pre {
    background: #1a252f;
    color: #d5dbdb;
    border-color: #1a252f;
}

#preview pre code {
    background: none;
    color: inherit;
    padding: 0;
}

/* 暗色模式下覆盖highlight.js的GitHub样式 */
#preview.dark .hljs {
    background: transparent !important;
    color: #d5dbdb !important;
}

#preview.dark .hljs-keyword,
#preview.dark .hljs-selector-tag,
#preview.dark .hljs-literal,
#preview.dark .hljs-section,
#preview.dark .hljs-link {
    color: #ff7b72 !important;
}

#preview.dark .hljs-string,
#preview.dark .hljs-title,
#preview.dark .hljs-name,
#preview.dark .hljs-type,
#preview.dark .hljs-attribute,
#preview.dark .hljs-symbol,
#preview.dark .hljs-bullet,
#preview.dark .hljs-addition,
#preview.dark .hljs-variable,
#preview.dark .hljs-template-tag,
#preview.dark .hljs-template-variable {
    color: #a5d6ff !important;
}

#preview.dark .hljs-comment,
#preview.dark .hljs-quote,
#preview.dark .hljs-deletion,
#preview.dark .hljs-meta {
    color: #8b949e !important;
}

#preview.dark .hljs-number,
#preview.dark .hljs-regexp,
#preview.dark .hljs-selector-id,
#preview.dark .hljs-selector-class,
#preview.dark .hljs-selector-attr,
#preview.dark .hljs-selector-pseudo,
#preview.dark .hljs-title.class_,
#preview.dark .hljs-title.function_ {
    color: #79c0ff !important;
}

#preview.dark .hljs-tag,
#preview.dark .hljs-doctag,
#preview.dark .hljs-built_in,
#preview.dark .hljs-emphasis,
#preview.dark .hljs-strong {
    color: #ffa657 !important;
}

/* 列表样式 */
#preview ul, #preview ol {
    margin: 1em 0;
    padding-left: 2em;
}

#preview li {
    margin: 0.5em 0;
}

/* 表格样式 */
#preview table {
    border-collapse: collapse;
    width: 100%;
    margin: 1.5em 0;
}

#preview th, #preview td {
    border: 1px solid #bdc3c7;
    padding: 12px;
    text-align: left;
}

#preview th {
    background: #34495e;
    color: white;
    font-weight: 600;
}

#preview.dark th {
    background: #2c3e50;
    color: #ecf0f1;
}

#preview tr:nth-child(even) {
    background: #f8f9fa;
}

#preview.dark tr:nth-child(even) {
    background: #34495e;
}

#preview.dark td {
    border-color: #5a6c7d;
    color: #e0e0e0;
}

/* 链接样式 */
#preview a {
    color: #3498db;
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-bottom 0.3s ease;
}

#preview a:hover {
    border-bottom: 1px solid #3498db;
}

#preview.dark a {
    color: #5dade2;
}

#preview.dark a:hover {
    border-bottom: 1px solid #5dade2;
}

/* 图片样式 */
#preview img {
    max-width: 100%;
    height: auto;
    border-radius: 0;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    margin: 1em 0;
}

/* KaTeX数学公式样式 */
.katex {
    font-size: 1.1em;
}

.katex-display {
    margin: 1.5em 0;
    text-align: center;
}

.katex-display > .katex {
    display: inline-block;
    white-space: nowrap;
}

/* 暗黑模式下的KaTeX样式 */
#preview.dark .katex {
    color: #c9d1d9;
}

#preview.dark .katex .mord {
    color: #c9d1d9;
}

#preview.dark .katex .mbin,
#preview.dark .katex .mrel {
    color: #79c0ff;
}

#preview.dark .katex .mop {
    color: #d2a8ff;
}

#preview.dark .katex .mopen,
#preview.dark .katex .mclose {
    color: #ffa657;
}

/* 滚动条样式 */
#markdown-input::-webkit-scrollbar,
#preview::-webkit-scrollbar {
    width: 8px;
}

#markdown-input::-webkit-scrollbar-track,
#preview::-webkit-scrollbar-track {
    background: #f1f1f1;
}

#markdown-input.dark::-webkit-scrollbar-track,
#preview.dark::-webkit-scrollbar-track {
    background: #2d2d2d;
}

#markdown-input::-webkit-scrollbar-thumb,
#preview::-webkit-scrollbar-thumb {
    background: #bdc3c7;
    border-radius: 0;
}

#markdown-input.dark::-webkit-scrollbar-thumb,
#preview.dark::-webkit-scrollbar-thumb {
    background: #5a6c7d;
}

#markdown-input::-webkit-scrollbar-thumb:hover,
#preview::-webkit-scrollbar-thumb:hover {
    background: #95a5a6;
}

#markdown-input.dark::-webkit-scrollbar-thumb:hover,
#preview.dark::-webkit-scrollbar-thumb:hover {
    background: #7f8c8d;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .main-content {
        flex-direction: column;
    }

    .editor-panel {
        border-right: none;
        border-bottom: 1px solid #e1e5e9;
    }

    .toolbar {
        padding: 6px 15px;
        gap: 10px;
        min-height: 36px;
    }

    .toolbar-btn {
        width: 22px;
        height: 22px;
    }

    .toolbar-btn svg {
        width: 14px;
        height: 14px;
    }
}