* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Noto Sans', sans-serif;
  background: #000;
  color: #fff;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  overflow: hidden;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
}

.container {
  text-align: center;
  width: 100%;
  max-width: 500px;
  padding: 20px;
}

.timer {
  font-size: 3rem;
  font-weight: bold;
  margin-bottom: 1rem;
  letter-spacing: 0.1em;
}

.count {
  font-size: 6rem;
  font-weight: bold;
  margin-bottom: 2rem;
  transition: transform 0.1s;
}

.count.pulse {
  transform: scale(1.1);
}

.click-area {
  width: 100%;
  max-width: 400px;
  height: 200px;
  background: #fff;
  color: #000;
  border: none;
  border-radius: 20px;
  font-size: 2rem;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.1s;
  margin-bottom: 2rem;
}

.click-area:active {
  transform: scale(0.95);
  background: #ddd;
}

.click-area.playing {
  background: #4CAF50;
  color: #fff;
}

.click-area.finished {
  background: #666;
  color: #fff;
  cursor: default;
}

.cps {
  font-size: 1.5rem;
  color: #888;
}

@media (max-width: 600px) {
  .timer {
    font-size: 2rem;
  }
  
  .count {
    font-size: 4rem;
  }
  
  .click-area {
    height: 150px;
    font-size: 1.5rem;
  }
  
  .cps {
    font-size: 1.2rem;
  }
}