body {
  background-color: #121212;
  color: #fff;
  font-family: Arial, sans-serif;
}

.container {
  max-width: 600px;
  margin: 40px auto;
  padding: 20px;
  background-color: #1e1e1e;
  border-radius: 8px;
}

h1 {
  text-align: center;
  color: #ffcc00;
  margin-bottom: 20px;
}

ul#leaderboardList {
  list-style: none;
  padding-left: 0;
}

ul#leaderboardList li {
  background-color: #2a2a2a;
  margin: 5px 0;
  padding: 10px;
  border-radius: 4px;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
  background-color: #1e1e1e;
  color: #fff;
}

th, td {
  padding: 10px;
  text-align: center;
  border: 1px solid #444;
}

th {
  background-color: #333;
  color: #ffcc00;
}

#logoutBtn {
  background: #a50000;
}
#logoutBtn:hover {
  background: #7a0000;
}

.buttons,
.preset-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 20px;
}
button {
  background: #0055a5;
  color: #fff;
  border: none;
  padding: 10px 20px;
  font-size: 16px;
  cursor: pointer;
  border-radius: 4px;
  transition: background 0.2s ease;
}
button:disabled {
  background: #444;
  cursor: not-allowed;
}
button:hover:not(:disabled) {
  background: #003f7f;
}