:root {
  color-scheme: dark light;
  --bg: #0d1117;
  --fg: #c9d1d9;
  --muted: #8b949e;
  --accent: #58a6ff;
  --border: #21262d;
  --code-bg: #161b22;
  --tag-bg: #1f6feb22;
  --tag-fg: #79c0ff;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #ffffff;
    --fg: #1f2328;
    --muted: #59636e;
    --accent: #0969da;
    --border: #d1d9e0;
    --code-bg: #f6f8fa;
    --tag-bg: #ddf4ff;
    --tag-fg: #0550ae;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
.wrap {
  max-width: 880px;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}
header {
  border-bottom: 1px solid var(--border);
  padding-bottom: 1.25rem;
  margin-bottom: 1.5rem;
}
header h1 {
  margin: 0;
  font-size: 1.6rem;
  letter-spacing: -0.01em;
}
header h1 a { color: inherit; text-decoration: none; }
header .tagline {
  margin: 0.4rem 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}
header nav {
  margin-top: 0.85rem;
  font-size: 0.85rem;
}
header nav a {
  color: var(--muted);
  margin-right: 1rem;
  text-decoration: none;
}
header nav a:hover { color: var(--accent); }
input[type=search] {
  width: 100%;
  font-family: inherit;
  font-size: 1rem;
  padding: 0.7rem 0.85rem;
  background: var(--code-bg);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 6px;
}
input[type=search]:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
.meta {
  color: var(--muted);
  font-size: 0.82rem;
  margin: 0.5rem 0 1.5rem;
}
.entry-list { list-style: none; padding: 0; margin: 0; }
.entry-list li {
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--border);
}
.entry-list a.title {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}
.entry-list a.title:hover { text-decoration: underline; }
.entry-list .symptom {
  color: var(--muted);
  font-size: 0.85rem;
  margin-top: 0.25rem;
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.tags { margin-top: 0.4rem; }
.tag {
  display: inline-block;
  background: var(--tag-bg);
  color: var(--tag-fg);
  padding: 0.05rem 0.4rem;
  border-radius: 4px;
  font-size: 0.72rem;
  margin-right: 0.3rem;
}
.category-chip {
  display: inline-block;
  background: var(--code-bg);
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 0.05rem 0.4rem;
  border-radius: 4px;
  font-size: 0.72rem;
  margin-right: 0.3rem;
}
section h2 {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  margin: 2rem 0 0.75rem;
}
article h1 {
  margin: 0 0 0.5rem;
  line-height: 1.25;
  font-size: 1.4rem;
}
article .frontmatter {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.85rem 1rem;
  margin: 1rem 0 1.5rem;
  font-size: 0.85rem;
}
article .frontmatter dt {
  color: var(--muted);
  display: inline-block;
  width: 9rem;
}
article .frontmatter dd {
  display: inline;
  margin: 0;
}
article .frontmatter div { margin-bottom: 0.15rem; }
article pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.75rem 0.9rem;
  overflow-x: auto;
  font-size: 0.85rem;
}
article code {
  background: var(--code-bg);
  padding: 0.08rem 0.3rem;
  border-radius: 3px;
  font-size: 0.88em;
}
article pre code {
  background: transparent;
  padding: 0;
}
article a { color: var(--accent); }
footer {
  margin-top: 3rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.78rem;
}
footer a { color: var(--muted); }
#results .empty { color: var(--muted); font-style: italic; }
.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.5rem 0.75rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.category-grid li {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.55rem 0.7rem;
}
.category-grid a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}
.category-grid .count { color: var(--muted); margin-left: 0.4rem; font-size: 0.8rem; }