:root {
  --bg: #0b121b;
  --fg: #eff6ff;
  --muted: #98a7bc;
  --accent: #f59e0b;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 15% 20%, rgba(245, 158, 11, 0.25), transparent 30%),
    radial-gradient(circle at 85% 85%, rgba(59, 130, 246, 0.2), transparent 25%),
    var(--bg);
  color: var(--fg);
}

.shell {
  width: min(680px, 92vw);
  padding: 2.2rem;
  border: 1px solid rgba(239, 246, 255, 0.18);
  border-radius: 18px;
  background: rgba(11, 18, 27, 0.7);
  backdrop-filter: blur(6px);
}

.eyebrow {
  margin: 0;
  color: var(--accent);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1 {
  margin: 0.5rem 0 1rem;
  font-size: clamp(2rem, 6vw, 3.2rem);
}

p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}