:root {
  --theme: #1a5276;
  --theme-soft: #eef5f9;
  --ink: #2c3e50;
  --muted: #5d6d7e;
  --line: #d5dce3;
  --bg: #fff;
  --sidebar: 280px;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font: 16px/1.6 system-ui, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
}

a { color: var(--theme); text-decoration: none; }
a:hover { text-decoration: underline; }
code { font-family: ui-monospace, Consolas, monospace; font-size: .92em; background: #f4f6f8; padding: .1em .35em; border-radius: 4px; }

.topbar {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: 16px;
  padding: 10px 18px;
  background: #fff;
  border-bottom: 1px solid var(--line);
}
.brand { font-weight: 700; color: var(--theme); font-size: 1.05rem; text-decoration: none; }
.search { flex: 1; max-width: 420px; }
.search input {
  width: 100%; padding: 8px 12px; border: 1px solid var(--line); border-radius: 8px;
}
.top-links { margin-left: auto; font-size: 13px; color: #555; white-space: nowrap; }
.top-links a { color: #555; margin: 0 4px; }
.top-links a.is-on { color: var(--theme); font-weight: 700; }

.shell { display: flex; min-height: calc(100vh - 53px); }
.sidebar {
  width: var(--sidebar); flex: 0 0 var(--sidebar);
  border-right: 1px solid var(--line);
  padding: 16px 12px 32px;
  background: #fbfcfd;
  overflow: auto;
}
.tree-label { font-size: 12px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin: 0 8px 10px; }
.tree details { margin-left: 6px; }
.tree summary { cursor: pointer; color: var(--ink); padding: 3px 4px; }
.tree .leaf {
  display: block; padding: 3px 8px 3px 18px; color: #444; border-radius: 6px;
}
.tree .leaf.is-on, .tree .leaf:hover { background: var(--theme-soft); color: var(--theme); text-decoration: none; }

.content { flex: 1; padding: 28px 36px 64px; max-width: 920px; }

.hero h1, .markdown h1 { color: var(--theme); margin-top: 0; }
.muted { color: var(--muted); }
.btn {
  display: inline-block; background: var(--theme); color: #fff !important;
  padding: 9px 16px; border-radius: 8px; border: 0; cursor: pointer; font: inherit;
  text-decoration: none !important;
}
.cards { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.card {
  display: block; padding: 16px; border: 1px solid var(--line); border-radius: 10px;
  background: var(--theme-soft); color: inherit !important; text-decoration: none !important;
}
.card:hover { border-color: var(--theme); }
.card strong { display: block; color: var(--theme); }
.card span { color: var(--muted); font-size: .9rem; }

.markdown { line-height: 1.7; }
.markdown h1, .markdown h2, .markdown h3 { color: var(--theme); }
.markdown h2 { border-bottom: 1px solid var(--line); padding-bottom: 6px; }
.markdown pre {
  background: #f6f8fa; border: 1px solid var(--line); border-radius: 8px; padding: 12px 14px; overflow: auto;
}
.markdown table { border-collapse: collapse; width: 100%; }
.markdown th, .markdown td { border: 1px solid var(--line); padding: 6px 10px; }
.markdown blockquote { margin: 0; padding: 8px 14px; border-left: 4px solid var(--theme); background: var(--theme-soft); }
.markdown img { max-width: 100%; }
.meta { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 16px; }
.meta span { background: var(--theme-soft); color: var(--theme); padding: 2px 8px; border-radius: 999px; font-size: 12px; }
.wiki-missing { color: #b03a2e; border-bottom: 1px dashed #b03a2e; }

.hits { list-style: none; padding: 0; }
.hits li { padding: 12px 0; border-bottom: 1px solid var(--line); }
.hits small { color: var(--muted); margin-left: 8px; }
.hits p { margin: 4px 0 0; color: #555; }

.admin-page .content { max-width: 720px; margin: 0 auto; }
.admin-box {
  border: 1px solid var(--line); border-radius: 12px; padding: 24px;
  box-shadow: 0 1px 4px rgba(0,0,0,.04);
}
.admin-head { display: flex; justify-content: space-between; align-items: center; }
.form { display: grid; gap: 14px; }
.form label { display: grid; gap: 6px; font-weight: 600; }
.form input[type="text"], .form input[type="password"], .form input:not([type="checkbox"]) {
  padding: 8px 10px; border: 1px solid var(--line); border-radius: 8px; font: inherit; font-weight: 400;
}
.form .check { display: flex; align-items: center; gap: 8px; font-weight: 400; }
.folder-field { border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; }
.folder-field legend { font-weight: 700; padding: 0 6px; }
.folder-picks { display: grid; grid-template-columns: 1fr 1fr; gap: 4px 16px; }
.status { display: grid; gap: 10px; }
.status dt { font-size: 12px; color: var(--muted); }
.status dd { margin: 0; }
.error { color: #922b21; }
.ok { color: #1e8449; }
.linkish { background: none; border: 0; color: var(--theme); cursor: pointer; font: inherit; }

@media (max-width: 800px) {
  .shell { display: block; }
  .sidebar { width: auto; border-right: 0; border-bottom: 1px solid var(--line); max-height: 40vh; }
  .content { padding: 20px 16px 48px; }
  .cards { grid-template-columns: 1fr; }
  .topbar { flex-wrap: wrap; }
  .search { max-width: none; order: 3; flex: 1 1 100%; }
}