:root {
  color-scheme: dark;
  --bg: #0b1020;
  --panel: rgba(18, 25, 49, 0.94);
  --text: #eef2ff;
  --muted: #a7b0d1;
  --accent: #67e8f9;
  --border: rgba(255, 255, 255, 0.08);
  --error: #fecaca;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, sans-serif;
  background: linear-gradient(180deg, #0b1020 0%, #111933 100%);
  color: var(--text);
}

.shell {
  max-width: 1400px;
  margin: 0 auto;
  padding: 32px 20px 60px;
}

.shell-narrow {
  max-width: 1100px;
}

.hero {
  margin-bottom: 20px;
}

.eyebrow {
  text-transform: uppercase;
  color: var(--accent);
  letter-spacing: 0.12em;
  font-size: 12px;
  margin: 0 0 10px;
}

h1, h2, h3 {
  margin-top: 0;
}

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

.stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}

.card,
.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.card {
  padding: 18px;
}

.card span {
  display: block;
  color: var(--muted);
  margin-bottom: 8px;
}

.card strong {
  font-size: 24px;
  word-break: break-word;
}

.panel {
  padding: 20px;
  margin-bottom: 20px;
}

.ask-form {
  display: grid;
  gap: 12px;
}

textarea {
  width: 100%;
  min-height: 140px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #0e1430;
  color: var(--text);
  padding: 14px;
  font: inherit;
}

button {
  width: fit-content;
  padding: 12px 18px;
  border-radius: 10px;
  border: none;
  background: var(--accent);
  color: #04111b;
  font-weight: 700;
  cursor: pointer;
}

.error {
  margin-top: 14px;
  color: var(--error);
}

.answer {
  white-space: pre-wrap;
  line-height: 1.5;
}

.sources,
.files {
  margin: 0;
  padding-left: 18px;
}

.sources li,
.files li {
  margin-bottom: 8px;
}

.sources span {
  color: var(--muted);
  margin-left: 8px;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.code-panel {
  overflow: auto;
}

.code-table {
  width: 100%;
  border-collapse: collapse;
}

.line-no {
  width: 72px;
  color: var(--muted);
  vertical-align: top;
  padding: 0 12px 0 0;
  text-align: right;
}

.code-line {
  width: 100%;
}

.code-line pre {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

@media (max-width: 900px) {
  .stats {
    grid-template-columns: 1fr;
  }
}