:root {
  font-family: 'Inter', system-ui, sans-serif;
}
body {
  min-height: 100vh;
  margin: 0;
  display: grid;
  place-items: center;
  background: radial-gradient(circle at top, #fef9c3, #fee2e2);
}
main {
  text-align: center;
  padding: 2rem;
  border-radius: 1rem;
  box-shadow: 0 15px 60px rgba(15, 23, 42, 0.35);
  background: rgba(255, 255, 255, 0.85);
}
button {
  padding: 0.75rem 1.5rem;
  border-radius: 999px;
  border: none;
  background: #6366f1;
  color: white;
  font-weight: 600;
  cursor: pointer;
}
button:hover {
  background: #4f46e5;
}