body {
  margin: 0;
  font-family: sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background-color: #f5f5f5;
}

#root {
  width: 100%;
  max-width: 600px;
  padding: 16px;
}

.container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 16px;
}

.counter button {
  width: 100%;
  padding: 16px;
  font-size: 18px;
  border: none;
  border-radius: 8px;
  background-color: #fff;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  cursor: pointer;
}

.counter button:active {
  background-color: #e0e0e0;
}

.counts {
  margin-top: 8px;
  display: flex;
  justify-content: space-between;
  font-size: 14px;
}