style.css

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body, html {
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #000;
    overflow: hidden;
    font-family: 'Arial', sans-serif;
}

.game-container {
    position: relative;
    width: 800px;
    height: 600px;
    border: 3px solid #fff;
    background-color: #111;
}

#game-area {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.player {
    position: absolute;
    bottom: 10px;
    left: 50%;
    width: 100px;
    height: 20px;
    background-color: #0f0;
    transform: translateX(-50%);
    border-radius: 10px;
}

.orb {
    position: absolute;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background-color: #f00;
}

.bonus {
    position: absolute;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background-color: #ff0;
}

#score-board {
    position: absolute;
    top: 10px;
    left: 10px;
    color: #fff;
    font-size: 24px;
}

#game-over {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #fff;
    font-size: 48px;
    display: none;
}