:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --fg: #1a1a1a;
  --accent: #2b5797;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12141a;
    --fg: #eaeaea;
    --accent: #7aa7e0;
  }
}

* {
  box-sizing: border-box;
}

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

main {
  text-align: center;
  padding: 2rem;
}

h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.75rem, 5vw, 2.5rem);
  color: var(--accent);
}

p {
  margin: 0;
  color: var(--fg);
  opacity: 0.7;
}