:root{font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:#1a1a1a;background-color:#f5f6f8}body{margin:0;padding:0}.container{max-width:640px;margin:0 auto;padding:2rem 1.5rem}h1{font-size:2rem;margin-bottom:1.5rem}.lista{list-style:none;padding:0;margin:0}.lista li{background:#fff;border:1px solid #e2e4e8;border-radius:8px;padding:.75rem 1rem;margin-bottom:.5rem}.aviso{color:#666}.erro{color:#b00020;background:#fde7e9;border:1px solid #f5c2c7;border-radius:8px;padding:.75rem 1rem}