* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 2rem;
  font-family: Arial, Helvetica, sans-serif;
  color: #f8fafc;
  background:
    radial-gradient(circle at top, rgba(34, 211, 238, 0.14), transparent 38%),
    linear-gradient(160deg, #020617 0%, #0f172a 58%, #111827 100%);
}

.shell {
  width: min(100%, 54rem);
  padding: 2.5rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 1.25rem;
  background: rgba(15, 23, 42, 0.82);
  box-shadow: 0 24px 80px rgba(2, 6, 23, 0.45);
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: #22d3ee;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
}

h1 {
  font-size: clamp(2.2rem, 6vw, 3.4rem);
  line-height: 1.05;
}

h2 {
  font-size: 1rem;
}

.lede {
  margin: 1rem 0 0;
  color: #dbe4f0;
  font-size: 1.05rem;
  line-height: 1.7;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.card {
  padding: 1.1rem 1.15rem;
  border: 1px solid rgba(148, 163, 184, 0.18);
  border-radius: 1rem;
  background: rgba(15, 23, 42, 0.7);
}

.narrative {
  margin-top: 1rem;
}

.narrative p {
  margin: 0.75rem 0 0;
  color: #dbe4f0;
  line-height: 1.7;
}

.facts {
  margin: 0.85rem 0 0;
  padding-left: 1.25rem;
  color: #cbd5e1;
  line-height: 1.75;
}

code {
  padding: 0.12rem 0.35rem;
  border-radius: 0.4rem;
  background: rgba(148, 163, 184, 0.16);
  color: #f8fafc;
}