:root {
  --bg: #0b1220;
  --text: #eef2ff;
  --muted: #9aa6c1;
  --accent: #3dd6c6;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  font-family: "Segoe UI", system-ui, sans-serif;
  background: radial-gradient(circle at top, #152238, var(--bg) 55%);
  color: var(--text);
}

.shell {
  text-align: center;
  padding: 3rem 2rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 1rem;
  background: rgba(255, 255, 255, 0.03);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
  max-width: 36rem;
}

.eyebrow {
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.8rem;
  color: var(--accent);
  margin: 0 0 1rem;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 6vw, 3rem);
}

.version {
  margin: 1rem 0 0.5rem;
  color: var(--muted);
}

.status {
  margin: 1.5rem 0 0;
  font-size: 1.1rem;
  font-weight: 600;
}