.app{max-width:480px;margin:4rem auto;padding:2rem;text-align:center}.message{font-size:1.5rem;font-weight:600;color:#0f766e}.error{color:#b91c1c}:root{font-family:system-ui,-apple-system,sans-serif;line-height:1.5;color:#213547;background-color:#f8fafc}body{margin:0;min-height:100vh}