body {
  font-family: sans-serif;
  background-color: #121212;
  color: white;
  margin: 0;
  padding: 0;
}
#app {
  padding: 10px;
}
#main-menu {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-bottom: 10px;
}
#main-menu button {
  flex: 1 1 45%;
  padding: 10px;
  font-size: 1.1em;
}
#player-stats {
  font-size: 0.9em;
  margin-bottom: 10px;
}