:root{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;line-height:1.5;font-weight:400;color:#1f2a44;background-color:#f4f7fb}*{box-sizing:border-box;margin:0;padding:0}body{min-height:100vh;display:flex;justify-content:center;align-items:center}.app{text-align:center;background:#fff;padding:3rem 4rem;border-radius:16px;box-shadow:0 12px 30px #1f2a441f}.app h1{font-size:2.4rem;margin-bottom:.8rem}.app p{color:#4a5a75;margin-bottom:1.6rem}.app button{border:none;background:#2f6fed;color:#fff;font-size:1rem;padding:.7rem 1.6rem;border-radius:999px;cursor:pointer}.app button:hover{background:#2457be}#root{width:100%;padding:2rem}