* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100vh; background: #ffffff; }
body { display: flex; align-items: center; justify-content: center; padding: 40px 20px; }
.card { width: 100%; max-width: 420px; }
button { cursor: pointer; }
select, input, textarea { font-family: inherit; }