body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  background: #f5f5f5;
  color: #333;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

#root {
  width: 100%;
  max-width: 800px;
  padding: 20px;
}

.container {
  background: white;
  border-radius: 12px;
  padding: 24px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.click-area {
  width: 100%;
  height: 200px;
  background: #f0f0f0;
  border: none;
  border-radius: 8px;
  margin: 20px 0;
  cursor: pointer;
  transition: background 0.2s;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 24px;
  font-weight: bold;
  color: #666;
}

.click-area:hover {
  background: #e8e8e8;
}

.click-area:active {
  background: #ddd;
}

.leaderboard {
  margin-top: 40px;
}

.leaderboard h2 {
  color: #333;
  margin-bottom: 20px;
}

.leaderboard-item {
  display: flex;
  align-items: center;
  padding: 12px;
  border-radius: 8px;
  margin-bottom: 8px;
  background: #f8f8f8;
}

.leaderboard-item img {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  margin-right: 12px;
}

.leaderboard-item .username {
  flex-grow: 1;
  font-weight: 500;
}

.leaderboard-item .score {
  font-weight: bold;
  color: #666;
}

.stats {
  display: flex;
  justify-content: space-between;
  margin-bottom: 20px;
}

.stat-box {
  background: #f8f8f8;
  padding: 16px;
  border-radius: 8px;
  text-align: center;
  flex: 1;
  margin: 0 8px;
}

.stat-box h3 {
  margin: 0;
  font-size: 14px;
  color: #666;
  margin-bottom: 8px;
}

.stat-box .value {
  font-size: 24px;
  font-weight: bold;
  color: #333;
}