:root {
  color-scheme: light dark;
  --green: #2e7d32;
  --yellow: #b58900;
  --red: #b3261e;
  --border: #8884;
  --muted: #767676;
}

* {
  box-sizing: border-box;
}

body {
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  max-width: 48rem;
  margin: 0 auto;
  padding: 1.5rem 1rem 4rem;
  line-height: 1.4;
}

header h1 {
  margin-bottom: 0.2rem;
}

.subtitle {
  color: var(--muted);
  margin-top: 0;
}

#search-form {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  margin-bottom: 1.5rem;
}

#query {
  flex: 1 1 20rem;
  padding: 0.5rem 0.7rem;
  font-size: 1rem;
  border: 1px solid var(--border);
  border-radius: 0.3rem;
}

button[type="submit"] {
  padding: 0.5rem 1.1rem;
  font-size: 1rem;
  border: 1px solid var(--border);
  border-radius: 0.3rem;
  cursor: pointer;
}

.mode-toggle {
  font-size: 0.85rem;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 0.3rem;
  white-space: nowrap;
}

.error {
  color: var(--red);
  border: 1px solid var(--red);
  border-radius: 0.3rem;
  padding: 0.6rem 0.8rem;
  margin-bottom: 1rem;
}

.loading,
.no-answer {
  color: var(--muted);
}

.result-group {
  border: 1px solid var(--border);
  border-radius: 0.4rem;
  padding: 0.8rem 1rem;
  margin-bottom: 1rem;
}

.result-group h3 {
  margin: 0 0 0.3rem;
}

.tags {
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 0.4rem;
}

.source-meta {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 0.6rem;
  display: flex;
  gap: 0.6rem;
  align-items: center;
  flex-wrap: wrap;
}

.source-meta button {
  font-size: 0.8rem;
  padding: 0.15rem 0.5rem;
  cursor: pointer;
}

.chunk {
  margin: 0.3rem 0;
  border-left: 4px solid var(--border);
  padding-left: 0.6rem;
}

.chunk summary {
  cursor: pointer;
  font-size: 0.85rem;
}

.chunk-text {
  white-space: pre-wrap;
  font-family: inherit;
  font-size: 0.9rem;
  margin: 0.4rem 0 0.2rem;
}

.dist-green {
  border-left-color: var(--green);
}

.dist-yellow {
  border-left-color: var(--yellow);
}

.dist-yellow summary {
  color: var(--yellow);
}

footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 0.4rem 1rem;
  font-size: 0.75rem;
  color: var(--muted);
  text-align: right;
}

.sol-up {
  color: var(--green);
}

.sol-down {
  color: var(--red);
}