body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    background-color: #282c34;
    color: #ffffff;
    font-family: Arial, sans-serif;
    overflow: hidden;
}

#game-container {
    text-align: center;
    border: 2px solid #61dafb;
    padding: 20px;
    border-radius: 10px;
    background-color: #20232a;
    box-shadow: 0 0 15px rgba(97, 218, 251, 0.7);
}

h1 {
    color: #61dafb;
}

#gameCanvas {
    background-color: #333;
    border: 1px solid #ffffff;
    display: block;
    margin: 20px auto;
}

#score-display, #highscore-display {
    margin-bottom: 10px;
    font-size: 1.2em;
}

button {
    background-color: #61dafb;
    color: #20232a;
    border: none;
    padding: 10px 20px;
    font-size: 1.1em;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: #21a1f1;
}

#game-over-screen {
    background-color: rgba(0, 0, 0, 0.8);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 100;
}

#game-over-screen h2 {
    color: #ff4d4d;
    font-size: 2.5em;
}

#game-over-screen p {
    font-size: 1.5em;
    margin: 10px 0;
}

#new-highscore-message {
    color: #ffeb3b;
    font-weight: bold;
}