/* markpedia：維基風格的簡潔樣式 */
:root {
  --fg: #202122;
  --muted: #54595d;
  --link: #3366cc;
  --border: #a2a9b1;
  --bg: #f8f9fa;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, 'Noto Sans TC', 'Helvetica Neue', Arial, sans-serif;
  color: var(--fg);
  background: #fff;
  line-height: 1.75;
}

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

header {
  display: flex;
  gap: 16px;
  align-items: center;
  padding: 10px 24px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: #fff;
  z-index: 5;
}

#logo { font-weight: 700; font-size: 20px; text-decoration: none; color: var(--fg); white-space: nowrap; }
#new-link { white-space: nowrap; font-size: 14px; }

#search-form { flex: 1; }
#search-input {
  width: 100%;
  max-width: 480px;
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 14px;
}

.page { max-width: 860px; margin: 0 auto; padding: 24px 16px 60px; }

h1, h2, h3 { line-height: 1.3; }
#app h1 { font-size: 28px; border-bottom: 1px solid #eaecf0; padding-bottom: 8px; }

/* 入口頁：學門／次分類的表格 */
.chip {
  display: inline-block;
  padding: 1px 12px;
  margin-right: 6px;
  border: 1px solid var(--link);
  border-radius: 12px;
  font-size: 13px;
}
.chip.active { background: var(--link); color: #fff; }
.chip.ghost { border-color: var(--border); color: var(--muted); }
.lang-tabs { margin-bottom: 6px; }

.meta { color: var(--muted); font-size: 14px; }

.entry-list { list-style: none; padding: 0; }
.entry-list li { padding: 10px 0; border-bottom: 1px solid #eaecf0; }
.entry-list .title-link { font-size: 17px; font-weight: 600; }
.entry-list .meta { margin-left: 8px; }

button, .btn {
  font-size: 14px;
  padding: 5px 14px;
  border: 1px solid var(--border);
  background: var(--bg);
  border-radius: 4px;
  cursor: pointer;
  color: var(--fg);
  display: inline-block;
}
button:hover, .btn:hover { text-decoration: none; background: #eef2ff; }
button.danger { color: #b32424; border-color: #b32424; background: #fff; }
button.danger:hover { background: #fff3f3; }

article { margin-top: 18px; overflow-wrap: break-word; }
article table, .preview table { border-collapse: collapse; margin: 16px 0; }
article th, article td, .preview th, .preview td { border: 1px solid #c8ccd1; padding: 6px 12px; }
article th, .preview th { background: var(--bg); }
article pre, .preview pre { background: var(--bg); padding: 12px; border-radius: 6px; overflow: auto; }
article code, .preview code {
  background: rgba(27, 31, 35, .06);
  padding: 1px 5px;
  border-radius: 3px;
  font-size: .92em;
}
article pre code, .preview pre code { background: none; padding: 0; }
article blockquote {
  border-left: 4px solid var(--border);
  margin: 12px 0;
  padding: 2px 16px;
  color: var(--muted);
}
article img, .preview img { max-width: 100%; }
.katex-display { overflow-x: auto; overflow-y: hidden; padding: 4px 0; }
.mermaid-box { text-align: center; margin: 14px 0; }
.mermaid-box svg { max-width: 100%; }
.mermaid-error {
  color: #b32424;
  background: #fff3f3;
  padding: 10px;
  white-space: pre-wrap;
  font-size: 13px;
}

form { display: flex; flex-direction: column; gap: 6px; max-width: 860px; }
form label { font-weight: 600; margin-top: 10px; font-size: 14px; }
form input, form textarea, form select {
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font: inherit;
  width: 100%;
}
form textarea {
  font-family: ui-monospace, Menlo, Consolas, monospace;
  font-size: 13px;
  line-height: 1.6;
}
form .row { display: flex; gap: 10px; margin-top: 12px; align-items: center; }

.error { color: #b32424; }
.muted { color: var(--muted); font-size: 13px; }

.preview {
  background: var(--bg);
  border: 1px dashed var(--border);
  border-radius: 8px;
  margin-top: 20px;
}

/* 入口頁：學門／次分類的表格 */
.portal-table {
  border-collapse: collapse;
  width: 100%;
  margin: 8px 0 24px;
}
.portal-table th, .portal-table td {
  border: 1px solid #c8ccd1;
  padding: 10px 14px;
  vertical-align: top;
  text-align: left;
}
.portal-table thead th { background: var(--bg); font-weight: 600; }
.portal-table tbody th {
  width: 5em;
  background: var(--bg);
  text-align: center;
  font-size: 22px;
  white-space: nowrap;
}
.portal-table tbody th a { color: var(--fg); text-decoration: none; }
.portal-table tbody th a:hover { color: var(--link); text-decoration: underline; }
.portal-table td a { margin-right: 2px; }

footer {
  border-top: 1px solid var(--border);
  padding: 14px 24px;
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}