:root {
  --bg: #ffffff;
  --bg-alt: #f6f7f9;
  --fg: #1a1d23;
  --fg-muted: #5c6470;
  --border: #e3e6ea;
  --accent: #2f6f4f;
  --accent-fg: #ffffff;
  --link: #1f6feb;
  --link-visited: #6b3fa0;
  --code-bg: #f0f2f5;
  --tag-bg: #eef2ff;
  --tag-fg: #364fc7;
  --sidebar-w: 260px;
  --warn-bg: #fff8e6;
  --warn-border: #f0d878;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14161a;
    --bg-alt: #1b1e24;
    --fg: #e7e9ec;
    --fg-muted: #9aa2ad;
    --border: #2b2f37;
    --accent: #5fbf8d;
    --accent-fg: #0c1210;
    --link: #6ea8fe;
    --link-visited: #b892e8;
    --code-bg: #20242c;
    --tag-bg: #232a44;
    --tag-fg: #a9b8ff;
    --warn-bg: #2b2612;
    --warn-border: #6b5a1e;
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  line-height: 1.6;
}

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

.layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  background: var(--bg-alt);
  border-right: 1px solid var(--border);
  padding: 1.25rem 1rem;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.sidebar h1 {
  font-size: 1.05rem;
  margin: 0 0 1rem 0;
}
.sidebar h1 a { color: var(--fg); }

.sidebar nav ul {
  list-style: none;
  margin: 0 0 1.25rem 0;
  padding: 0;
}
.sidebar nav li { margin: 0.15rem 0; }
.sidebar nav a {
  display: block;
  padding: 0.3rem 0.5rem;
  border-radius: 6px;
  color: var(--fg);
  font-size: 0.92rem;
}
.sidebar nav a:hover { background: var(--border); text-decoration: none; }
.sidebar nav a.active { background: var(--accent); color: var(--accent-fg); }

.sidebar .section-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--fg-muted);
  margin: 0.9rem 0 0.25rem 0.5rem;
}

#search-box {
  width: 100%;
  padding: 0.45rem 0.6rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--fg);
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}

#search-results {
  list-style: none;
  margin: 0 0 1rem 0;
  padding: 0;
  max-height: 300px;
  overflow-y: auto;
}
#search-results li a {
  display: block;
  padding: 0.3rem 0.5rem;
  border-radius: 6px;
  font-size: 0.88rem;
}
#search-results li a:hover { background: var(--border); text-decoration: none; }
#search-results .result-cat {
  color: var(--fg-muted);
  font-size: 0.75rem;
}
#search-empty { display: none; color: var(--fg-muted); font-size: 0.85rem; padding: 0.3rem 0.5rem; }

.content-wrap {
  flex: 1;
  min-width: 0;
  padding: 2rem 3rem 4rem 3rem;
  max-width: 900px;
}

.breadcrumbs {
  font-size: 0.85rem;
  color: var(--fg-muted);
  margin-bottom: 1rem;
}
.breadcrumbs a { color: var(--fg-muted); }

.meta-box {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  margin-bottom: 1.5rem;
  font-size: 0.85rem;
  color: var(--fg-muted);
}
.meta-box .type-badge {
  display: inline-block;
  background: var(--tag-bg);
  color: var(--tag-fg);
  border-radius: 999px;
  padding: 0.1rem 0.6rem;
  font-size: 0.75rem;
  font-weight: 600;
  margin-right: 0.5rem;
}
.meta-box .tags { margin-top: 0.35rem; }
.meta-box .tag {
  display: inline-block;
  background: var(--tag-bg);
  color: var(--tag-fg);
  border-radius: 4px;
  padding: 0.05rem 0.4rem;
  font-size: 0.75rem;
  margin: 0.1rem 0.25rem 0.1rem 0;
}
.meta-box .sources-list { margin-top: 0.35rem; }

.content h1:first-child { margin-top: 0; }
.content h1, .content h2, .content h3, .content h4 {
  scroll-margin-top: 1rem;
}
.content h2 {
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.3rem;
  margin-top: 2.2rem;
}
.content table {
  border-collapse: collapse;
  width: 100%;
  margin: 1rem 0;
  font-size: 0.9rem;
  display: block;
  overflow-x: auto;
}
.content th, .content td {
  border: 1px solid var(--border);
  padding: 0.4rem 0.6rem;
  text-align: left;
}
.content th { background: var(--bg-alt); }
.content code {
  background: var(--code-bg);
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  font-size: 0.88em;
}
.content pre {
  background: var(--code-bg);
  padding: 0.8rem 1rem;
  border-radius: 8px;
  overflow-x: auto;
}
.content pre code { background: none; padding: 0; }
.content blockquote {
  border-left: 3px solid var(--accent);
  margin: 1rem 0;
  padding: 0.2rem 1rem;
  color: var(--fg-muted);
}
.wikilink-unresolved {
  color: var(--fg-muted);
  border-bottom: 1px dashed var(--fg-muted);
}

.menu-toggle {
  display: none;
}

@media (max-width: 860px) {
  .layout { display: block; }
  .sidebar {
    position: static;
    width: auto;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .content-wrap { padding: 1.5rem 1.25rem 3rem 1.25rem; max-width: 100%; }
}

footer.site-footer {
  color: var(--fg-muted);
  font-size: 0.8rem;
  margin-top: 3rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}