:root {
  --bg: #0a0a0c;
  --fg: #e0e0e0;
  --accent: #00ff66;
}

body {
  background-color: var(--bg);
  color: var(--fg);
  font-family: system-ui, -apple-system, sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  margin: 0;
}

main {
  max-width: 600px;
  padding: 2rem;
  border: 1px solid #222;
  border-radius: 8px;
}

h1 {
  color: var(--accent);
}