/* Markdown Viewer Styling */
:root {
  --markdown-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --markdown-text: #24292e;
  --markdown-bg: #ffffff;
  --markdown-link: #0366d6;
  --markdown-blockquote: #6a737d;
  --markdown-border: #dfe2e5;
  --markdown-hr: #eaecef;
  --markdown-code-bg: #f6f8fa;
  --markdown-code-text: #24292e;
  --markdown-table-border: #dfe2e5;
  --markdown-table-stripe: #f6f8fa;
  --toc-bg: #f8f9fa;
  --toc-border: #e9ecef;
  --toc-text: #495057;
  --toc-active: #0366d6;
  --toc-header-bg: #e9ecef;
  --toc-header-text: #495057;
}

/* Dark mode variables */
body.dark-mode {
  --markdown-text: #c9d1d9;
  --markdown-bg: #0d1117;
  --markdown-link: #58a6ff;
  --markdown-blockquote: #8b949e;
  --markdown-border: #30363d;
  --markdown-hr: #30363d;
  --markdown-code-bg: #161b22;
  --markdown-code-text: #c9d1d9;
  --markdown-table-border: #30363d;
  --markdown-table-stripe: #161b22;
  --toc-bg: #161b22;
  --toc-border: #30363d;
  --toc-text: #8b949e;
  --toc-active: #58a6ff;
  --toc-header-bg: #21262d;
  --toc-header-text: #c9d1d9;
}

/* Container layout */
.markdown-container {
  display: flex;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  gap: 30px;
}

/* TOC Sidebar */
.toc-sidebar {
  position: sticky;
  top: 20px;
  width: 250px;
  flex-shrink: 0;
  height: fit-content;
  max-height: calc(100vh - 100px);
  overflow-y: auto;
  background-color: var(--toc-bg);
  border: 1px solid var(--toc-border);
  border-radius: 8px;
  margin-bottom: 20px;
}

.toc-header {
  padding: 12px 16px;
  font-weight: 600;
  font-size: 16px;
  background-color: var(--toc-header-bg);
  color: var(--toc-header-text);
  border-bottom: 1px solid var(--toc-border);
  border-top-left-radius: 8px;
  border-top-right-radius: 8px;
}

.toc-content {
  padding: 12px 0;
  display: flex;
  flex-direction: column;
}

.toc-item {
  padding: 6px 16px;
  color: var(--toc-text);
  text-decoration: none;
  font-size: 14px;
  line-height: 1.5;
  transition: all 0.2s ease;
  border-left: 2px solid transparent;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.toc-item:hover {
  color: var(--toc-active);
  background-color: rgba(0, 0, 0, 0.05);
  text-decoration: none;
}

.toc-level-1 {
  font-weight: 600;
}

.toc-level-2 {
  font-weight: 500;
}

/* Markdown Content */
.markdown-body {
  flex: 1;
  min-width: 0;
  background: var(--markdown-bg);
  color: var(--markdown-text);
  font-family: var(--markdown-font);
  font-size: 16px;
  line-height: 1.6;
  padding: 25px 30px;
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.markdown-body > *:first-child {
  margin-top: 0;
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4,
.markdown-body h5,
.markdown-body h6 {
  margin-top: 24px;
  margin-bottom: 16px;
  font-weight: 600;
  line-height: 1.25;
}

.markdown-body h1 {
  font-size: 2em;
  padding-bottom: 0.3em;
  border-bottom: 1px solid var(--markdown-border);
}

.markdown-body h2 {
  font-size: 1.5em;
  padding-bottom: 0.3em;
  border-bottom: 1px solid var(--markdown-border);
}

.markdown-body h3 {
  font-size: 1.25em;
}

.markdown-body h4 {
  font-size: 1em;
}

.markdown-body p {
  margin-top: 0;
  margin-bottom: 16px;
}

.markdown-body blockquote {
  padding: 0 1em;
  color: var(--markdown-blockquote);
  border-left: 0.25em solid var(--markdown-border);
  margin: 0 0 16px 0;
}

.markdown-body ul,
.markdown-body ol {
  padding-left: 2em;
  margin-top: 0;
  margin-bottom: 16px;
}

.markdown-body li {
  margin: 0.25em 0;
}

.markdown-body code {
  padding: 0.2em 0.4em;
  margin: 0;
  font-size: 85%;
  background-color: var(--markdown-code-bg);
  border-radius: 3px;
  font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
}

.markdown-body pre {
  margin-top: 0;
  margin-bottom: 16px;
  padding: 16px;
  overflow: auto;
  font-size: 85%;
  line-height: 1.45;
  background-color: var(--markdown-code-bg);
  border-radius: 6px;
}

.markdown-body pre code {
  padding: 0;
  margin: 0;
  font-size: 100%;
  background-color: transparent;
  border: 0;
  display: inline;
  line-height: inherit;
  overflow: visible;
  word-wrap: normal;
}

.markdown-body table {
  display: block;
  width: 100%;
  overflow: auto;
  margin-top: 0;
  margin-bottom: 16px;
  border-collapse: collapse;
}

.markdown-body table th,
.markdown-body table td {
  padding: 6px 13px;
  border: 1px solid var(--markdown-table-border);
}

.markdown-body table tr {
  background-color: var(--markdown-bg);
  border-top: 1px solid var(--markdown-table-border);
}

.markdown-body table tr:nth-child(2n) {
  background-color: var(--markdown-table-stripe);
}

.markdown-body hr {
  height: 0.25em;
  padding: 0;
  margin: 24px 0;
  background-color: var(--markdown-hr);
  border: 0;
}

.markdown-body img {
  max-width: 100%;
  box-sizing: border-box;
  display: block;
  margin: 0 auto;
}

.markdown-body a {
  color: var(--markdown-link);
  text-decoration: none;
}

.markdown-body a:hover {
  text-decoration: underline;
}

/* Error message styling */
.error-message {
  padding: 20px;
  border: 1px solid #f5c6cb;
  background-color: #f8d7da;
  color: #721c24;
  border-radius: 4px;
  margin-bottom: 20px;
}

.dark-mode .error-message {
  border-color: #842029;
  background-color: #2c0b0e;
  color: #ea868f;
}

/* Responsive design */
@media (max-width: 768px) {
  .markdown-container {
    flex-direction: column;
    padding: 0 10px;
  }
  
  .toc-sidebar {
    position: relative;
    top: 0;
    width: 100%;
    margin-bottom: 20px;
  }
  
  .markdown-body {
    padding: 15px 20px;
  }
}

/* Highlight.js compatibility */
.hljs {
  background: var(--markdown-code-bg) !important;
  color: var(--markdown-code-text) !important;
}

/* 复制按钮相关样式 */
.copy-button-container {
  position: absolute;
  top: 5px;
  right: 5px;
  z-index: 10;
  opacity: 0;
  transition: opacity 0.2s ease-in-out;
}

pre:hover .copy-button-container,
blockquote:hover .copy-button-container {
  opacity: 1;
}

.copy-button {
  padding: 4px 8px;
  background-color: rgba(0, 0, 0, 0.2);
  border: none;
  border-radius: 4px;
  color: #fff;
  font-size: 12px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.copy-button:hover {
  background-color: rgba(0, 0, 0, 0.3);
}

.copy-button.success {
  background-color: #28a745;
}

/* 暗黑模式下的样式调整 */
body.dark-mode .copy-button {
  background-color: rgba(255, 255, 255, 0.2);
}

body.dark-mode .copy-button:hover {
  background-color: rgba(255, 255, 255, 0.3);
}

body.dark-mode .copy-button.success {
  background-color: #28a745;
}

/* 为引用块的复制按钮调整位置 */
.copy-button-container.quote {
  top: 0;
  right: 0;
}