.before-after {
    --position: 50%;

    position: relative;
    width: 100%;
    max-width: 800px;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    border-radius: var(--bs-border-radius-lg);
    user-select: none;
}

.before-after__image {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.before-after__before {
    position: absolute;
    inset: 0;
    width: var(--position);
    overflow: hidden;
    z-index: 1;
}

/*
 * The image must remain the full width of the overall component.
 * Otherwise it would shrink as the slider moves.
 */
.before-after__before .before-after__image {
    width: calc(100% / (var(--position) / 100%));
    max-width: none;
}

/* clip-path avoids the width calculation issues at 0% */
@supports (clip-path: inset(0)) {
    .before-after__before {
        width: 100%;
        overflow: visible;
        clip-path: inset(0 calc(100% - var(--position)) 0 0);
    }

    .before-after__before .before-after__image {
        width: 100%;
    }
}

.before-after__divider {
    position: absolute;
    z-index: 2;
    top: 0;
    bottom: 0;
    left: var(--position);
    width: 3px;
    background-color: #fff;
    box-shadow: 0 0 8px rgb(0 0 0 / 45%);
    transform: translateX(-50%);
    pointer-events: none;
}

.before-after__handle {
    position: absolute;
    top: 50%;
    left: 50%;
    display: flex;
    align-items: center;
    justify-content: space-evenly;
    width: 3.25rem;
    height: 3.25rem;
    color: #fff;
    font-size: 1.75rem;
    font-weight: bold;
    line-height: 1;
    background-color: rgb(0 0 0 / 55%);
    border: 3px solid #fff;
    border-radius: 50%;
    transform: translate(-50%, -50%);
}

.before-after__range {
    position: absolute;
    z-index: 3;
    inset: 0;
    width: 100%;
    height: 100%;
    margin: 0;
    cursor: ew-resize;
    opacity: 0;
}

.before-after__range:focus-visible + * {
    outline: none;
}

.before-after:has(.before-after__range:focus-visible)
.before-after__handle {
    outline: 3px solid var(--bs-warning);
    outline-offset: 3px;
}

.before-after__label {
    position: absolute;
    z-index: 2;
    top: 1rem;
    padding: 0.35rem 0.75rem;
    color: #fff;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background-color: rgb(0 0 0 / 60%);
    border-radius: var(--bs-border-radius);
    pointer-events: none;
}

.before-after__label--before {
    left: 1rem;
}

.before-after__label--after {
    right: 1rem;
}