body,
html {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    background-color: #050510;
    color: #fff;
    font-family: 'Courier New', Courier, monospace;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

canvas {
    display: block;
}

#instructions {
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    pointer-events: none;
    background: rgba(0, 0, 0, 0.7);
    padding: 10px 20px;
    border-radius: 8px;
    border: 1px solid #333;
}

h1 {
    margin: 0 0 5px 0;
    font-size: 24px;
    color: #00ffcc;
}

p {
    margin: 0;
    font-size: 16px;
    color: #aaa;
}

#muteBtn {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(5, 5, 16, 0.85);
    border: 1px solid #00ffcc;
    color: #00ffcc;
    padding: 8px 15px;
    border-radius: 5px;
    cursor: pointer;
    font-family: 'Courier New', Courier, monospace;
    font-size: 14px;
    font-weight: bold;
    z-index: 100;
    transition: all 0.3s ease;
}

#muteBtn:hover {
    background: #00ffcc;
    color: #050510;
    box-shadow: 0 0 10px #00ffcc;
}