body {
  font-family: sans-serif;
  padding: 1rem;
  background: #f4f4f4;
}

.container {
  max-width: 600px;
  margin: auto;
  background: white;
  padding: 1rem;
  border-radius: 10px;
  box-shadow: 0 0 10px #ccc;
}

input, button {
  display: block;
  width: 100%;
  margin-bottom: 0.75rem;
  padding: 0.5rem;
  font-size: 1rem;
}

button {
  background: #4CAF50;
  color: white;
  border: none;
  cursor: pointer;
}

button:hover {
  background: #45a049;
}

ul {
  list-style: none;
  padding: 0;
}