body {
    font-family: Arial, sans-serif;
    text-align: center;
    background: #f4f4f4;
    margin: 0;
    padding: 20px;
}

#game-area {
    width: 400px;
    height: 300px;
    background: white;
    border: 2px solid #333;
    margin: 20px auto;
    position: relative;
    overflow: hidden;
}

#target {
    width: 40px;
    height: 40px;
    background: crimson;
    position: absolute;
    top: 0;
    left: 0;
    cursor: pointer;
    border-radius: 6px;
}

#hud {
    font-size: 20px;
    margin-bottom: 10px;
}

#hud span {
    margin: 0 15px;
}

#start-btn {
    padding: 10px 20px;
    font-size: 18px;
    cursor: pointer;
}