body {
    margin: 0;
    overflow: hidden;
    background: #000;
}
#player {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    background: url('images/skyline.jpg') no-repeat center center / cover;
  }
#player {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    pointer-events: none;
    overflow: hidden;
}
#player iframe {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
#gameCanvas {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
}
#gameOverScreen {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    color: white;
    font-family: sans-serif;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    font-size: 2em;
    display: none;
    z-index: 2;
}
#restartButton {
    margin-top: 20px;
    padding: 10px 20px;
    font-size: 1em;
    cursor: pointer;
}
#scoreDisplay {
    position: absolute;
    top: 10px;
    left: 10px;
    font-family: sans-serif;
    font-size: 1.2em;
    color: #000;
    background: rgba(255, 255, 255, 0.7);
    padding: 5px 10px;
    border-radius: 8px;
    z-index: 2;
}