body {
  font-family: sans-serif;
  background: #eef2f3;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.container {
  background: white;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  text-align: center;
}

input, button {
  display: block;
  width: 100%;
  margin: 0.5rem 0;
  padding: 0.75rem;
}