body{margin:0;display:flex;justify-content:center;align-items:center;min-height:100vh;background:#f0f2f5;font-family:system-ui,-apple-system,sans-serif}main{text-align:center;padding:2rem;background:#fff;border-radius:12px;box-shadow:0 2px 8px #0000001a;max-width:600px;width:90%}h1{color:#1a1a1a;margin-bottom:1rem}#message{font-size:1.25rem;color:#4a4a4a;margin-top:1rem}