:root {
  color-scheme: light dark;
}

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu,
    Cantarell, Noto Sans, Helvetica Neue, Arial, sans-serif;
  background: radial-gradient(circle at 20% 20%, #1e293b, #0f172a 60%);
}

main {
  text-align: center;
  padding: 2rem 2.5rem;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(4px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.25);
}

h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(2rem, 4vw, 3rem);
}

p {
  margin: 0;
  opacity: 0.9;
}