:root {
  color-scheme: light dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top left, #dbeafe, transparent 32rem), #0f172a;
  color: #e5e7eb;
}

body {
  min-height: 100vh;
  margin: 0;
  display: grid;
  place-items: center;
}

.card {
  width: min(32rem, calc(100vw - 2rem));
  padding: 2.5rem;
  border: 1px solid rgb(255 255 255 / 0.18);
  border-radius: 1.5rem;
  background: rgb(15 23 42 / 0.72);
  box-shadow: 0 1.5rem 5rem rgb(0 0 0 / 0.34);
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: #93c5fd;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(3rem, 12vw, 6rem);
  line-height: 0.95;
}

#message {
  margin: 1.5rem 0 0;
  color: #cbd5e1;
  font-size: 1.15rem;
}