body {
  margin: 0;
  padding: 0;
  font-family: system-ui, sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  background: linear-gradient(135deg, #4facfe, #00f2fe);
  color: white;
  text-align: center;
}

.container {
  background: rgba(0,0,0,0.3);
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.3);
}