:root {
  --game-tile-0: #000000;
  --game-tile-2: #ffffff;
  --game-tile-4: #ede0c8;
  --game-tile-8: #f2b179;
  --game-tile-16: #ffcea4;
  --game-tile-32: #e8c064;
  --game-tile-64: #ffab6e;
  --game-tile-128: #fd9982;
  --game-tile-256: #ead79c;
  --game-tile-512: #76daff;
  --game-tile-1024: #beeaa5;
  --game-tile-2048: #d7d4f0;
}

@media (prefers-color-scheme: dark) {
  :root {
    --game-tile-0: #0a101b;
    --game-tile-2: #dbe6f4;
    --game-tile-4: #b9a782;
    --game-tile-8: #c98550;
    --game-tile-16: #d58e6e;
    --game-tile-32: #bd973c;
    --game-tile-64: #c17b4e;
    --game-tile-128: #c86c61;
    --game-tile-256: #b6a260;
    --game-tile-512: #4c9bbd;
    --game-tile-1024: #79a96b;
    --game-tile-2048: #9892bd;
  }
}

body {
    background-color: var(--color-background);
    display: flex;
    justify-content: center;
  }
  
  h1 {
    font-size: 4rem;
    margin: 0;
  }
  
  .container {
    width: 90%;
    max-width: 600px;
    margin-top: 20px;
  }
  
  .info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
  }
  
  .grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    margin-top: 30px;
  }
  
  .grid div {
    cursor: pointer;
    width: 100%;
    height: 100px;
    border-radius: 6px;
    text-align: center;
    font-size: 2rem;
    color: var(--color-ink);
    line-height: 100px;
  }
  
  .score-container {
    text-align: center;
    padding-left: 10px;
    padding-right: 10px;
    padding-top: 5px;
    padding-bottom: 5px;
    border-radius: 3px;
    background-color: var(--color-brand);
    color: var(--color-text-inverse);
  }
  
  #score {
    font-size: 2rem;
  }
  
  .score-title {
    font-size: 1.2rem;
  }
  
  .game-over {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: var(--color-surface-overlay);
    padding: 20px;
    border-radius: 6px;
    font-size: 2rem;
    display: none;
    z-index: 999;
  }
  
  .game-over.show {
    display: block;
  }