body {
  background-color: #121212;
  color: #f1f1f1;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  padding: 2em;
  text-align: center;
}

h2 {
  color: #ff9999;
}

.button-group {
  display: flex;
  justify-content: center;
  gap: 1em;
  margin-top: 2em;
}

.button-group button {
  padding: 0.75em 1.5em;
  background-color: teal;
  color: white;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  font-weight: bold;
  transition: background 0.3s;
}

.button-group button:hover {
  background-color: #006666;
}