body {
  margin:0;
  font-family:system-ui;
  background:#0c0c0c;
  color:#fff;
  display:flex;
  justify-content:center;
}

.app {
  max-width:420px;
  width:100%;
  padding:20px;
}

.card {
  background:#121212;
  padding:20px;
  border-radius:16px;
}

input, select {
  width:100%;
  padding:12px;
  margin:5px 0;
  border-radius:10px;
  border:none;
  background:#0c0c0c;
  color:#fff;
}

h1 {
  font-size:22px;
}