body {
  background-color: #121212;
  color: #e0e0e0;
  font-family: 'Segoe UI', sans-serif;
  margin: 0;
  padding: 2rem;
}

.container {
  max-width: 700px;
  margin: auto;
  padding: 2rem;
  background-color: #1e1e1e;
  border-radius: 10px;
  box-shadow: 0 0 10px #000;
}

input[type="text"] {
  width: 70%;
  padding: 0.6rem;
  margin-right: 0.5rem;
  border: none;
  border-radius: 5px;
}

button {
  padding: 0.6rem 1.2rem;
  background-color: #3e8ed0;
  border: none;
  border-radius: 5px;
  color: white;
  cursor: pointer;
}

button:hover {
  background-color: #2b6ea6;
}

.hidden {
  display: none;
}

ul {
  padding-left: 1.5rem;
}

ul li {
  margin-bottom: 0.6rem;
}