:root {
  --bg: #f4f7fb;
  --card: #ffffff;
  --text: #10243f;
  --muted: #4a5f7d;
  --primary: #0f62fe;
  --border: rgba(16, 36, 63, 0.12);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: radial-gradient(circle at top right, rgba(15, 98, 254, 0.12), transparent 30%), var(--bg);
  line-height: 1.6;
}

.page {
  max-width: 920px;
  margin: 0 auto;
  padding: 2.5rem 1rem 3.5rem;
}

.top-nav {
  display: inline-flex;
  margin-bottom: 1rem;
  text-decoration: none;
  color: var(--primary);
  font-weight: 600;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.15;
}

.subtitle {
  margin: 0.75rem 0 1.25rem;
  font-size: 1.08rem;
  color: var(--muted);
}

.section {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1rem 1.2rem;
  margin-top: 0.9rem;
}

.section h2 {
  margin: 0 0 0.6rem;
  font-size: 1.06rem;
  letter-spacing: 0.01em;
}

.section ul {
  margin: 0;
  padding-left: 1.1rem;
  display: grid;
  gap: 0.4rem;
}

.key-insight {
  border-left: 4px solid var(--primary);
  background: rgba(15, 98, 254, 0.06);
}

.meta-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1rem;
}

.meta-links a {
  padding: 0.55rem 0.85rem;
  border-radius: 999px;
  background: #e8f0ff;
  color: #0f3fa8;
  text-decoration: none;
  font-weight: 600;
}