.bg-carousel {
    position: fixed;
    inset: 0;
    z-index: 0; /* ── Layer 1: bottom of the stack */
    overflow: hidden;
    background: #000;
}

.bg-slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    will-change: transform, opacity, filter;
}

.bg-slide-inner {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: 20% 20%;
    width: 100%;
    height: 100%;
    will-change: transform;
    backface-visibility: hidden;
}

.bg-slide video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    will-change: opacity;
    backface-visibility: hidden;
    pointer-events: none;
}

@media (max-width: 600px) {
    .bg-slide-inner {
        background-size: cover;
        background-position: top center;
    }
}

.bg-slide.active {
    opacity: 1;
    z-index: 2;
}

.bg-slide.prev {
    opacity: 1;
    z-index: 1;
}

@keyframes idleZoom {
    0%   { transform: scale(1); }
    100% { transform: scale(1.04); }
}

@keyframes idlePan {
    0%   { transform: scale(1.05) translateX(-1.5%); }
    100% { transform: scale(1.05) translateX(1.5%); }
}

@keyframes idleDrift {
    0%   { transform: scale(1.02) translate(-0.5%, -0.5%); }
    100% { transform: scale(1.06) translate(0.5%, 0.5%); }
}