body, html {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: #050505;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

#game-canvas {
    display: block;
    width: 100vw;
    height: 100vh;
}

#ui-container {
    position: absolute;
    top: 2rem;
    left: 2rem;
    color: white;
    pointer-events: none;
    text-shadow: 0 2px 4px rgba(0,0,0,0.5);
    z-index: 10;
}

#title {
    margin: 0;
    font-size: 2.5rem;
    font-weight: 200;
    letter-spacing: 0.5rem;
}

#sub {
    margin: 0.5rem 0 0 0.2rem;
    font-size: 0.8rem;
    opacity: 0.7;
    letter-spacing: 0.2rem;
    text-transform: uppercase;
}

#fps-counter {
    position: absolute;
    bottom: 1rem;
    left: 1rem;
    color: white;
    font-family: monospace;
    font-size: 0.8rem;
    opacity: 0.5;
    pointer-events: none;
    z-index: 10;
}