body {
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    background-color: #f3f3f3;
}

.container {
    text-align: center;
}

h1 {
    font-size: 2.5em;
    color: #333;
}

.score-display {
    font-size: 1.5em;
    margin: 20px 0;
}

img#gerten {
    width: 150px;
    cursor: pointer;
    transition: transform 0.1s ease;
}

img#gerten:active {
    transform: scale(0.9);
}

.shop {
    margin-top: 20px;
}

.shop button {
    padding: 10px 20px;
    margin: 5px;
    font-size: 1em;
    cursor: pointer;
}

.upgrades p {
    margin: 10px 0;
    font-size: 1.2em;
}