:root {
  --page-bg: #07101f;
  --panel-bg: #ffffff;
  --soft-bg: #f4f7fb;
  --text: #111827;
  --muted: #647084;
  --line: #dfe5ef;
  --accent: #2878ff;
  --accent-soft: rgba(40, 120, 255, 0.1);
  --radius: 20px;
  --max-width: 1200px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--soft-bg);
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
}

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

button {
  font: inherit;
}

.demo-page {
  width: min(calc(100% - 40px), var(--max-width));
  margin: 0 auto;
  padding: 48px 0 80px;
}

.demo-hero {
  padding: 44px;
  border-radius: 28px;
  color: #ffffff;
  background: var(--page-bg);
}

.demo-hero h1 {
  margin: 22px 0 12px;
  font-size: clamp(2.6rem, 6vw, 5.5rem);
  line-height: 0.98;
  letter-spacing: -0.06em;
}

.demo-hero p {
  max-width: 700px;
  color: #aab5c8;
  font-size: 1.08rem;
}

.demo-hero > a:last-child {
  display: inline-block;
  margin-top: 18px;
  padding: 12px 16px;
  border-radius: 12px;
  color: #ffffff;
  background: var(--accent);
  font-weight: 700;
}

.demo-layout {
  display: grid;
  grid-template-columns: 340px minmax(0, 1fr);
  gap: 24px;
  margin-top: 28px;
}

.prompt-panel,
.response-panel {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel-bg);
}

.prompt-panel h2,
.response-panel h2 {
  margin-top: 0;
}

#promptList {
  display: grid;
  gap: 10px;
}

.prompt-button {
  width: 100%;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--text);
  background: #ffffff;
  text-align: left;
  cursor: pointer;
}

.prompt-button:hover,
.prompt-button.active {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.executive-summary,
.commentary-box {
  padding: 18px;
  border-radius: 14px;
  background: var(--accent-soft);
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 22px 0;
}

.metric-card {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
}

.metric-card span {
  display: block;
  color: var(--muted);
  font-size: 0.8rem;
}

.metric-card strong {
  display: block;
  margin-top: 4px;
  font-size: 1.3rem;
}

.table-section,
.insight-list {
  margin-top: 26px;
}

.table-wrap {
  overflow-x: auto;
}

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

th,
td {
  padding: 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  white-space: nowrap;
}

th {
  color: var(--muted);
  font-size: 0.8rem;
}

.insight-list ol {
  padding-left: 20px;
}

.insight-list li {
  margin-bottom: 8px;
}

@media (max-width: 850px) {
  .demo-layout {
    grid-template-columns: 1fr;
  }

  .metric-grid {
    grid-template-columns: 1fr;
  }

  .demo-hero {
    padding: 28px;
  }
}