.dither-field {
    position: fixed;
    inset: 0;
    z-index: 0;
    width: 100vw;
    height: 100vh;
    min-height: 100svh;
    overflow: hidden;
    pointer-events: auto;
    background: transparent;
    opacity: 0.9;
    mix-blend-mode: multiply;
    contain: layout style paint;
    /* Isolate all aspects */
}

.dither-field canvas {
    display: block;
    width: 100%;
    height: 100%;
}

.dither-field::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    background: linear-gradient(to bottom,
            var(--background) 0%,
            color-mix(in srgb, var(--background), transparent 4%) 18%,
            color-mix(in srgb, var(--background), transparent 35%) 42%,
            transparent 72%);
}

.dither-field .webgl-error {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    margin: 0;
    padding: 2rem;
    color: var(--text);
    text-align: center;
    font-family: system-ui, sans-serif;
}

header,
main,
footer {
    position: relative;
    z-index: 1;
}