body {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
  margin: 0;
  padding: 1rem;
  background: rgb(39, 39, 43);
  font-family: Verdana, sans-serif;
  box-sizing: border-box;
}

.header {
  width: 100%;
  text-align: center;
  margin-bottom: 1rem;
}

.header h1,
.header h2 {
  color: rgb(239, 237, 237);
  margin: 0.5rem 0;
}

.header h1 {
  font-size: 2.5rem;
  font-weight: bold;
}

.header h2 {
  font-size: 1.5rem;
}

.highestScoreT {
  color: rgb(211, 0, 0);
  font-size: 1.2rem;
  margin: 0.5rem 0;
}

.container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
  width: 100%;
  max-width: 600px;
  margin-top: 1rem;
}

.box {
  cursor: pointer;
  width: 45%;
  aspect-ratio: 1 / 1;
  border-radius: 20px;
  border: 3px solid black;
  box-sizing: border-box;
  transition: transform 0.2s;
}

.box:hover {
  transform: scale(1.05);
}

.red {
  background: #d35b77;
}
.green {
  background: #5b97a1;
}
.orange {
  background: #f29c3b;
}
.blue {
  background: #7b8ff2;
}

.flash {
  background-color: #fff !important;
  transition: background-color 0.2s;
}

@media (min-width: 600px) {
  .header h1 {
    font-size: 3rem;
  }

  .header h2 {
    font-size: 2rem;
  }

  .highestScoreT {
    font-size: 1.5rem;
  }

  .box {
    width: 200px;
  }
}