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

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: #0a0a0f;
}

#canvas {
    display: block;
    width: 100%;
    height: 100%;
}

/* Subtle vignette overlay */
body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    background: radial-gradient(
        ellipse at center,
        transparent 0%,
        transparent 50%,
        rgba(10, 10, 15, 0.4) 100%
    );
}

#webgl-error {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: #00ffff;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    z-index: 10;
}

#webgl-error h1 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

#webgl-error p {
    font-size: 1rem;
    opacity: 0.7;
}