.leaderboard-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.8);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  color: #fff;
  font-family: 'Orbitron', sans-serif;
}

.leaderboard-container {
  width: 90%;
  max-width: 500px;
  background-color: rgba(20, 20, 40, 0.9);
  border-radius: 10px;
  padding: 20px;
  box-shadow: 0 0 30px rgba(0, 255, 255, 0.3);
  border: 2px solid rgba(0, 255, 255, 0.5);
}

.leaderboard-info-message {
  padding: 10px;
  margin-bottom: 20px;
  text-align: center;
  background-color: rgba(0, 0, 0, 0.2);
  border-radius: 5px;
  border: 1px solid rgba(0, 255, 255, 0.2);
  margin-bottom: 20px;
}

.leaderboard-info-message p {
  font-size: 14px;
  color: #ccc;
  margin-bottom: 10px;
}

.leaderboard-header {
  text-align: center;
  margin-bottom: 20px;
  color: #0ff;
  text-shadow: 0 0 10px rgba(0, 255, 255, 0.7);
}

.leaderboard-signin-btn {
  margin: 0 auto;
  display: inline-block;
  padding: 5px 15px;
  font-size: 12px;
}

.leaderboard-list {
  list-style-type: none;
  padding: 0;
  margin: 0;
}

.leaderboard-list li {
  display: flex;
  justify-content: space-between;
  padding: 10px;
  margin: 5px 0;
  background-color: rgba(0, 0, 0, 0.5);
  border-radius: 5px;
  border-left: 4px solid #0ff;
}

.leaderboard-list li.current-user {
  background-color: rgba(0, 255, 255, 0.2);
  box-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
}

.leaderboard-list .position {
  font-weight: bold;
  color: #0ff;
  width: 10%;
  text-align: center;
}

.leaderboard-list .username {
  flex-grow: 1;
  text-align: left;
  padding-left: 10px;
}

.leaderboard-list .score {
  font-weight: bold;
  width: 20%;
  text-align: right;
  color: #ff0;
}

.leaderboard-buttons {
  display: flex;
  justify-content: center;
  margin-top: 20px;
}

.leaderboard-btn {
  background-color: transparent;
  color: #0ff;
  border: 2px solid #0ff;
  padding: 10px 20px;
  margin: 0 10px;
  border-radius: 5px;
  cursor: pointer;
  font-family: 'Orbitron', sans-serif;
  font-size: 14px;
  transition: all 0.3s;
}

.leaderboard-btn:hover {
  background-color: rgba(0, 255, 255, 0.2);
  box-shadow: 0 0 15px rgba(0, 255, 255, 0.5);
}

.auth-container {
  position: absolute;
  top: 10px;
  right: 10px;
  display: flex;
  align-items: end;
  z-index: 100;
  gap: 10px;
  flex-direction: column;
}

.sign-in-btn {
  background-color: transparent;
  color: #0ff;
  border: 2px solid #0ff;
  padding: 10px 20px;
  border-radius: 5px;
  cursor: pointer;
  font-family: 'Orbitron', sans-serif;
  font-size: 14px;
  transition: all 0.3s;
}

.sign-in-btn:hover {
  background-color: rgba(0, 255, 255, 0.2);
  box-shadow: 0 0 15px rgba(0, 255, 255, 0.5);
}

.sign-in-top-btn {
  background-color: #000;
  color: #fff;
  border: none;
  border-radius: 5px;
  padding: 5px 10px;
  display: flex;
  align-items: center;
  gap: 5px;
  font-family: 'Orbitron', sans-serif;
  font-size: 12px;
  cursor: pointer;
  transition: all 0.3s;
}

.sign-in-top-btn:hover {
  background-color: #222;
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.2);
}

.twitter-btn {
  background-color: #000000;
  color: #fff;
  border: none;
  padding: 8px 15px;
  border-radius: 20px;
  cursor: pointer;
  font-family: 'Orbitron', sans-serif;
  font-size: 14px;
  display: flex;
  align-items: center;
  margin-bottom: 10px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
}

.twitter-btn:hover {
  background-color: #111111;
}

.user-profile {
  display: none;
  align-items: center;
  background-color: rgba(20, 20, 40, 0.7);
  padding: 5px 10px;
  border-radius: 20px;
  border: 1px solid rgba(0, 255, 255, 0.5);
  box-shadow: 0 0 10px rgba(0, 255, 255, 0.3);
  margin-bottom: 5px;
}

.user-profile .profile-pic {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  margin-right: 10px;
}

.user-profile .username {
  color: #0ff;
  margin-right: 10px;
  font-size: 14px;
}

.sign-out-btn {
  background-color: transparent;
  padding: 3px 8px;
  border-radius: 12px;
  cursor: pointer;
  font-size: 12px;
}