*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:system-ui,-apple-system,sans-serif;background:#0f172a;color:#e2e8f0;min-height:100vh}.container{max-width:600px;margin:4rem auto;padding:0 1.5rem}h1{font-size:2rem;font-weight:700;margin-bottom:.25rem}.subtitle{color:#94a3b8;margin-bottom:2rem}.card{background:#1e293b;border:1px solid #334155;border-radius:.75rem;padding:1.5rem}.card.error{border-color:#ef4444}.card h2{font-size:1.1rem;margin-bottom:1rem}.card ul{list-style:none;display:flex;flex-direction:column;gap:.5rem}.ok{color:#4ade80}.ko{color:#f87171}.loading{color:#94a3b8}