body {
    font-family: 'Typewriter';
    background-color: black;
    color: white;
}

header{
    text-align: center;
    font-size: 24px;
}

.inventory {
    position: fixed;
    bottom: 0;
    width: 100%;
}

button {
    cursor: pointer;
    font-family: 'Typewriter';
    font-size: 14px;
    justify-content: center;
    background-color: black;
    color: white;
    border-radius: 12px;
    margin: 4px;
    padding: 5px;
    padding-right: 10px;
    padding-left: 10px;
}

.upgrades{
    display: grid;
    grid-template-columns: repeat(3, 150px);
    margin-bottom: 10px;
}

.shop {
    display: none;
}
@font-face {
    font-family: Typewriter;
    src: url(MonospaceTypewriter.ttf);
  }