/* ============================================================
   GitHub Dark Theme 高仿样式
   ============================================================ */

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

:root {
  --bg-primary: #0d1117;
  --bg-secondary: #161b22;
  --bg-tertiary: #21262d;
  --border: #30363d;
  --border-light: #21262d;
  --text-primary: #e6edf3;
  --text-secondary: #848d97;
  --text-muted: #484f58;
  --link: #58a6ff;
  --link-hover: #79c0ff;
  --accent: #238636;
  --accent-hover: #2ea043;
  --danger: #f85149;
  --warning: #d29922;
  --purple: #bc8cff;
  --font-mono: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans', Helvetica, Arial, sans-serif;
}

body {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5;
}

a { color: var(--link); text-decoration: none; }
a:hover { color: var(--link-hover); text-decoration: underline; }

/* Header */
.gh-header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
  position: sticky;
  top: 0;
  z-index: 100;
}
.gh-header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.gh-logo { display: flex; align-items: center; }
.gh-search-container { position: relative; flex: 1; max-width: 560px; }
.gh-search {
  width: 100%;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 5px 12px;
  color: var(--text-primary);
  font-size: 14px;
  outline: none;
}
.gh-search:focus { border-color: var(--link); box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.15); }
.gh-search-results {
  display: none;
  position: absolute;
  top: calc(100% + 4px);
  left: 0; right: 0;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 6px;
  max-height: 400px;
  overflow-y: auto;
  z-index: 200;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}
.search-result-item {
  padding: 8px 16px;
  border-bottom: 1px solid var(--border-light);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
}
.search-result-item:hover { background: var(--bg-tertiary); }
.search-result-item .result-icon { color: var(--text-secondary); font-size: 12px; }
.search-result-item .result-path { color: var(--link); font-family: var(--font-mono); font-size: 12px; }
.search-result-item .result-match { color: var(--text-secondary); font-size: 12px; margin-top: 2px; }
.search-result-item .result-match mark { background: rgba(210, 153, 34, 0.3); color: var(--warning); padding: 0 2px; border-radius: 2px; }

.gh-nav { display: flex; gap: 16px; }
.gh-nav a { color: var(--text-primary); font-size: 14px; font-weight: 500; }
.gh-nav a:hover { color: var(--text-secondary); text-decoration: none; }

/* Repo Header */
.repo-header {
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
}
.repo-header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.repo-title { display: flex; align-items: center; gap: 8px; font-size: 20px; }
.repo-owner { color: var(--link); font-weight: 600; }
.repo-sep { color: var(--text-secondary); }
.repo-name { color: var(--link); font-weight: 700; }
.repo-badge {
  font-size: 12px;
  padding: 0 7px;
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text-secondary);
  line-height: 22px;
}
.repo-archived { color: var(--warning); border-color: var(--warning); }
.repo-actions { display: flex; gap: 8px; }

/* Buttons */
.gh-btn {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-primary);
  padding: 5px 16px;
  font-size: 14px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: var(--font-sans);
}
.gh-btn:hover { background: var(--border); }
.gh-count {
  background: var(--bg-primary);
  border-radius: 12px;
  padding: 0 8px;
  font-size: 12px;
  margin-left: 4px;
}
.gh-counter {
  background: var(--bg-tertiary);
  border-radius: 12px;
  padding: 0 6px;
  font-size: 12px;
  margin-left: 4px;
}

/* Tabs */
.repo-tabs { border-bottom: 1px solid var(--border); background: var(--bg-primary); }
.repo-tabs-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  gap: 8px;
}
.repo-tab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  color: var(--text-secondary);
  font-size: 14px;
  border-bottom: 2px solid transparent;
  cursor: pointer;
}
.repo-tab:hover { color: var(--text-primary); text-decoration: none; }
.repo-tab.active { color: var(--text-primary); border-bottom-color: #f78166; }

/* Main Content */
.repo-content { padding: 24px 0; }
.repo-content-inner { max-width: 1280px; margin: 0 auto; padding: 0 32px; }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* File Navigation */
.file-navigation {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}
.branch-btn svg { margin-right: 4px; }
.file-nav-info { color: var(--text-secondary); font-size: 12px; }

/* File List */
.file-list { border: 1px solid var(--border); border-radius: 6px; overflow: hidden; }
.file-item {
  display: flex;
  align-items: center;
  padding: 8px 16px;
  border-bottom: 1px solid var(--border-light);
  cursor: pointer;
  gap: 8px;
}
.file-item:last-child { border-bottom: none; }
.file-item:hover { background: var(--bg-secondary); }
.file-item-icon { width: 16px; text-align: center; }
.file-item-icon svg { fill: var(--text-secondary); }
.file-item-icon.folder svg { fill: var(--link); }
.file-item-name { flex: 1; }
.file-item-name a { color: var(--text-primary); }
.file-item-name a:hover { color: var(--link); text-decoration: underline; }
.file-item-msg { color: var(--text-secondary); font-size: 13px; flex: 2; text-align: right; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.file-item-date { color: var(--text-muted); font-size: 13px; width: 100px; text-align: right; }

.file-list-header {
  display: flex;
  align-items: center;
  padding: 8px 16px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  gap: 8px;
}
.file-list-header img { width: 20px; height: 20px; border-radius: 50%; }
.file-list-header .commit-author { font-weight: 600; font-size: 13px; }
.file-list-header .commit-msg { color: var(--text-secondary); font-size: 13px; flex: 1; }
.file-list-header .commit-hash { color: var(--link); font-family: var(--font-mono); font-size: 12px; }

/* File Viewer */
.file-viewer {
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  margin-bottom: 24px;
}
.file-viewer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 16px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
}
.file-viewer-path {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-secondary);
}
.file-viewer-content {
  padding: 16px 24px;
  background: var(--bg-primary);
  font-size: 14px;
  line-height: 1.7;
  overflow-x: auto;
}
.file-viewer-content h1, .file-viewer-content h2, .file-viewer-content h3 {
  border-bottom: 1px solid var(--border);
  padding-bottom: 8px;
  margin: 24px 0 16px;
}
.file-viewer-content h1 { font-size: 24px; }
.file-viewer-content h2 { font-size: 20px; }
.file-viewer-content h3 { font-size: 16px; }
.file-viewer-content p { margin: 8px 0; }
.file-viewer-content pre {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 16px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 13px;
  margin: 12px 0;
}
.file-viewer-content code {
  font-family: var(--font-mono);
  font-size: 13px;
  background: var(--bg-tertiary);
  padding: 2px 6px;
  border-radius: 4px;
}
.file-viewer-content pre code { background: none; padding: 0; }
.file-viewer-content blockquote {
  border-left: 3px solid var(--border);
  padding-left: 16px;
  color: var(--text-secondary);
  margin: 12px 0;
}
.file-viewer-content table {
  border-collapse: collapse;
  width: 100%;
  margin: 12px 0;
}
.file-viewer-content th, .file-viewer-content td {
  border: 1px solid var(--border);
  padding: 6px 12px;
  text-align: left;
}
.file-viewer-content th { background: var(--bg-secondary); }
.file-viewer-content .diff-add { color: #3fb950; background: rgba(46, 160, 67, 0.1); }
.file-viewer-content .diff-del { color: var(--danger); background: rgba(248, 81, 73, 0.1); }

/* README */
.readme-container {
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-top: 16px;
  overflow: hidden;
}
.readme-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  font-size: 14px;
  font-weight: 600;
}
.readme-body {
  padding: 24px 32px;
  line-height: 1.7;
}
.readme-body h1 { font-size: 28px; margin: 0 0 16px; padding-bottom: 8px; border-bottom: 1px solid var(--border); }
.readme-body h2 { font-size: 22px; margin: 24px 0 12px; padding-bottom: 6px; border-bottom: 1px solid var(--border); }
.readme-body h3 { font-size: 18px; margin: 20px 0 8px; }
.readme-body p { margin: 8px 0; }
.readme-body ul, .readme-body ol { padding-left: 24px; margin: 8px 0; }
.readme-body li { margin: 4px 0; }
.readme-body pre { background: var(--bg-secondary); border: 1px solid var(--border); border-radius: 6px; padding: 16px; overflow-x: auto; font-family: var(--font-mono); font-size: 13px; margin: 12px 0; }
.readme-body code { font-family: var(--font-mono); font-size: 13px; background: var(--bg-tertiary); padding: 2px 6px; border-radius: 4px; }
.readme-body pre code { background: none; padding: 0; }
.readme-body blockquote { border-left: 3px solid var(--border); padding-left: 16px; color: var(--text-secondary); margin: 12px 0; }
.readme-body table { border-collapse: collapse; width: 100%; margin: 12px 0; }
.readme-body th, .readme-body td { border: 1px solid var(--border); padding: 6px 12px; text-align: left; }
.readme-body th { background: var(--bg-secondary); }
.readme-body em { font-style: italic; color: var(--text-secondary); }
.readme-body strong { font-weight: 700; }
.readme-body .alert-warning {
  background: rgba(210, 153, 34, 0.1);
  border: 1px solid rgba(210, 153, 34, 0.3);
  border-radius: 6px;
  padding: 12px 16px;
  margin: 12px 0;
  color: var(--warning);
}
.readme-body .sub-text { font-size: 12px; color: var(--text-muted); }

/* Issues */
.issues-list { border: 1px solid var(--border); border-radius: 6px; overflow: hidden; }
.issue-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-light);
  cursor: pointer;
}
.issue-item:last-child { border-bottom: none; }
.issue-item:hover { background: var(--bg-secondary); }
.issue-icon { margin-top: 2px; }
.issue-icon svg { fill: #3fb950; width: 16px; height: 16px; }
.issue-icon.closed svg { fill: var(--purple); }
.issue-info { flex: 1; }
.issue-title { font-size: 16px; font-weight: 600; color: var(--text-primary); }
.issue-title:hover { color: var(--link); }
.issue-labels { display: flex; gap: 4px; margin-top: 4px; }
.issue-label {
  font-size: 12px;
  padding: 0 7px;
  border-radius: 12px;
  font-weight: 600;
  line-height: 22px;
}
.issue-meta { color: var(--text-secondary); font-size: 12px; margin-top: 4px; }

/* Issue Detail */
.issue-detail { max-width: 900px; }
.issue-detail-header { margin-bottom: 24px; }
.issue-detail-title { font-size: 28px; font-weight: 600; margin-bottom: 8px; }
.issue-detail-title .issue-number { color: var(--text-secondary); font-weight: 400; }
.issue-detail-meta { color: var(--text-secondary); font-size: 14px; margin-bottom: 16px; padding-bottom: 16px; border-bottom: 1px solid var(--border); }
.issue-detail-body {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 16px 24px;
  line-height: 1.7;
  margin-bottom: 24px;
}
.issue-detail-body h1, .issue-detail-body h2, .issue-detail-body h3 { margin: 16px 0 8px; }
.issue-detail-body p { margin: 8px 0; }
.issue-detail-body pre { background: var(--bg-primary); border: 1px solid var(--border); border-radius: 6px; padding: 12px; font-family: var(--font-mono); font-size: 13px; margin: 8px 0; overflow-x: auto; }
.issue-detail-body code { font-family: var(--font-mono); background: var(--bg-tertiary); padding: 2px 6px; border-radius: 4px; font-size: 13px; }
.issue-detail-body pre code { background: none; padding: 0; }
.issue-detail-body blockquote { border-left: 3px solid var(--border); padding-left: 16px; color: var(--text-secondary); margin: 12px 0; }
.issue-comment {
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-bottom: 16px;
}
.issue-comment-header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  padding: 8px 16px;
  font-size: 13px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
}
.issue-comment-header .comment-author { font-weight: 600; color: var(--text-primary); }
.issue-comment-body { padding: 16px; line-height: 1.7; }
.issue-comment-body p { margin: 8px 0; }
.issue-comment-body blockquote { border-left: 3px solid var(--border); padding-left: 16px; color: var(--text-secondary); margin: 12px 0; }
.issue-reply-box {
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  margin-top: 16px;
}
.issue-reply-box textarea {
  width: 100%;
  min-height: 100px;
  background: var(--bg-primary);
  border: none;
  color: var(--text-primary);
  padding: 12px 16px;
  font-size: 14px;
  font-family: var(--font-sans);
  resize: vertical;
  outline: none;
}
.issue-reply-box .reply-actions {
  display: flex;
  justify-content: flex-end;
  padding: 8px 12px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
}
.reply-submit {
  background: var(--accent);
  border: 1px solid rgba(240, 246, 252, 0.1);
  border-radius: 6px;
  color: white;
  padding: 5px 16px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  font-family: var(--font-sans);
}
.reply-submit:hover { background: var(--accent-hover); }

/* PR List */
.pulls-filter { margin-bottom: 16px; display: flex; gap: 8px; }
.pulls-filter-btn.active { background: var(--link); color: white; border-color: var(--link); }
.pulls-list { border: 1px solid var(--border); border-radius: 6px; overflow: hidden; }
.pr-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-light);
  cursor: pointer;
}
.pr-item:last-child { border-bottom: none; }
.pr-item:hover { background: var(--bg-secondary); }
.pr-icon svg { width: 16px; height: 16px; }
.pr-icon.open svg { fill: #3fb950; }
.pr-icon.closed svg { fill: var(--danger); }
.pr-icon.merged svg { fill: var(--purple); }
.pr-info { flex: 1; }
.pr-title { font-size: 16px; font-weight: 600; }
.pr-meta { color: var(--text-secondary); font-size: 12px; margin-top: 4px; }

/* PR Detail */
.pr-detail { max-width: 900px; }
.pr-detail-header { margin-bottom: 16px; }
.pr-detail-title { font-size: 28px; font-weight: 600; margin-bottom: 8px; }
.pr-detail-title .pr-number { color: var(--text-secondary); font-weight: 400; }
.pr-detail-status {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  border-radius: 16px;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
}
.pr-detail-status.closed { background: rgba(248, 81, 73, 0.15); color: var(--danger); }
.pr-detail-body {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 16px 24px;
  line-height: 1.7;
}
.pr-detail-body h1, .pr-detail-body h2, .pr-detail-body h3 { margin: 16px 0 8px; }
.pr-detail-body p { margin: 8px 0; }
.pr-detail-body pre { background: var(--bg-primary); border: 1px solid var(--border); border-radius: 6px; padding: 12px; font-family: var(--font-mono); font-size: 13px; margin: 8px 0; overflow-x: auto; }
.pr-detail-body code { font-family: var(--font-mono); background: var(--bg-tertiary); padding: 2px 6px; border-radius: 4px; font-size: 13px; }
.pr-detail-body pre code { background: none; padding: 0; }
.pr-detail-body blockquote { border-left: 3px solid var(--border); padding-left: 16px; color: var(--text-secondary); margin: 12px 0; }
.pr-detail-body .diff-add { color: #3fb950; }
.pr-detail-body .diff-del { color: var(--danger); }

/* Tracker */
.tracker {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: rgba(13, 17, 23, 0.95);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px 20px;
  width: 340px;
  z-index: 1000;
  backdrop-filter: blur(8px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
  transition: all 0.3s ease;
}
.tracker-header {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 8px;
  letter-spacing: 1px;
}
.tracker-progress {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}
.tracker-dots { display: flex; gap: 4px; }
.tracker-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg-tertiary);
  transition: all 0.5s ease;
}
.tracker-dot.filled {
  background: var(--link);
  border-color: var(--link);
  box-shadow: 0 0 8px rgba(88, 166, 255, 0.4);
}
.tracker-count {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--text-primary);
}
.tracker-log {
  font-size: 12px;
  color: var(--warning);
  font-family: var(--font-mono);
  margin-bottom: 8px;
  min-height: 16px;
  opacity: 0.9;
}
.tracker-whisper {
  font-size: 13px;
  color: var(--text-secondary);
  font-style: italic;
  line-height: 1.6;
  min-height: 40px;
}

/* Seed Discovered Animation */
.seed-discovered {
  animation: seedPulse 0.6s ease-out;
}
@keyframes seedPulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.03); box-shadow: 0 0 20px rgba(88, 166, 255, 0.3); }
  100% { transform: scale(1); }
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: 48px;
  color: var(--text-secondary);
}

/* Back button */
.back-link {
  color: var(--link);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-bottom: 16px;
  font-size: 14px;
}
.back-link:hover { text-decoration: underline; }

/* Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }