#fogContainer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 2000; /* Same level as other effects */
    overflow: hidden;
    background: linear-gradient(
        to top,
        var(--fog-color, rgba(91, 143, 255, 0.09)),
        transparent 58%
    );
}

.fog-layer {
    position: absolute;
    width: 200vw;
    height: 100vh;
    background-repeat: no-repeat;
    will-change: transform, opacity;
    animation-name: fog-drift, fog-pulse;
    animation-timing-function: linear, ease-in-out;
    animation-iteration-count: infinite, infinite;
    animation-direction: normal, alternate;
}

.fog-layer.layer-1 {
    animation-duration: 120s, 15s;
}

.fog-layer.layer-2 {
    animation-duration: 90s, 12s;
    animation-direction: reverse, alternate;
}

.fog-layer.layer-3 {
    animation-duration: 60s, 10s;
}

@keyframes fog-drift {
    0% {
        transform: translateX(-50%);
    }
    100% {
        transform: translateX(0);
    }
}

@keyframes fog-pulse {
    0% {
        opacity: 0.14;
    }
    100% {
        opacity: 0.42;
    }
}