body { 
    margin: 0; 
    overflow: hidden; 
    font-family: 'Courier New', Courier, monospace; 
    background: #000; 
}
#tab-bar {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: 50px;
    background: rgba(0, 0, 0, 0.8);
    color: #fff;
    display: flex;
    align-items: center;
    padding: 0 20px;
    z-index: 100;
    border-bottom: 1px solid #333;
}
#tab-bar a {
    color: #fff;
    text-decoration: none;
    margin-right: 20px;
    text-transform: uppercase;
    font-size: 14px;
    letter-spacing: 1px;
}
#tab-bar a:hover { color: #0f0; }
canvas { display: block; }