body {
    margin: 0;
    padding: 0;
    background-color: #000;
    color: #fff;
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

#game-container {
    position: relative;
    border: 2px solid #fff;
    max-width: 100vw;
    max-height: 100vh;
}

#gameCanvas {
    background-color: #000;
}

#game-ui {
    position: absolute;
    top: 10px;
    left: 10px;
    right: 10px;
    display: flex;
    justify-content: space-between;
    gap: 20px;
}

.ui-left {
    display: flex;
    gap: 20px;
}

.ui-right {
    display: flex;
}

#game-ui div div {
    font-size: 20px;
    font-weight: bold;
}

#game-over {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    background-color: rgba(0, 0, 0, 0.8);
    padding: 30px;
    border-radius: 10px;
    border: 2px solid #fff;
}

#game-over h2 {
    margin-top: 0;
    font-size: 36px;
    color: #ff0000;
}

#game-over p {
    font-size: 24px;
}

#restart-button {
    background-color: #4CAF50;
    border: none;
    color: white;
    padding: 15px 32px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 18px;
    margin-top: 20px;
    cursor: pointer;
    border-radius: 5px;
}

#restart-button:hover {
    background-color: #45a049;
}

.hidden {
    display: none;
}