:root {
  color-scheme: light dark;
  --bg: #0b1020;
  --card: #151c33;
  --text: #e8ecff;
  --muted: #a9b4d0;
  --accent: #7c9cff;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f5f7ff;
    --card: #ffffff;
    --text: #0f172a;
    --muted: #475569;
    --accent: #315efb;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, sans-serif;
  background: radial-gradient(circle at top, rgba(124,156,255,0.18), transparent 35%), var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}
.card {
  width: min(720px, 100%);
  background: var(--card);
  border: 1px solid rgba(124,156,255,0.18);
  border-radius: 24px;
  padding: 32px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.18);
}
h1 {
  margin: 0 0 12px;
  font-size: clamp(2rem, 5vw, 3.6rem);
  line-height: 1.05;
}
p {
  margin: 0 0 12px;
  font-size: 1.05rem;
  color: var(--muted);
}
.badge {
  display: inline-block;
  margin-top: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(124,156,255,0.12);
  color: var(--accent);
  font-weight: 600;
}