.bkbg-ir-app { display: block; }

.bkbg-ir-figure {
    margin: 0;
}

.bkbg-ir-container {
    position: relative;
    overflow: hidden;
    display: block;
    line-height: 0;
}

.bkbg-ir-img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
}

/* For auto-ratio containers */
.bkbg-ir-container.is-auto-ratio .bkbg-ir-img {
    position: static;
    width: 100%;
    height: auto;
}

.bkbg-ir-container.is-fixed-ratio {
    height: 0;
    overflow: hidden;
}

.bkbg-ir-container.is-fixed-ratio .bkbg-ir-img {
    position: absolute;
    top: 0; left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ── Overlay ── */
.bkbg-ir-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
}

.bkbg-ir-overlay-label {
    font-family:      var(--bkbg-ir-lb-font-family, inherit);
    font-size:        var(--bkbg-ir-lb-font-size-d, 18px);
    font-weight:      var(--bkbg-ir-lb-font-weight, 600);
    font-style:       var(--bkbg-ir-lb-font-style, normal);
    text-decoration:  var(--bkbg-ir-lb-text-decoration, none);
    text-transform:   var(--bkbg-ir-lb-text-transform, none);
    line-height:      var(--bkbg-ir-lb-line-height-d, 1.3);
    letter-spacing:   var(--bkbg-ir-lb-letter-spacing-d, normal);
    word-spacing:     var(--bkbg-ir-lb-word-spacing-d, normal);
    text-align: center;
    padding: 0 16px;
}

/* Revealed label (appears after reveal) */
.bkbg-ir-revealed-label {
    position: absolute;
    bottom: 12px;
    left: 12px;
    right: 12px;
    font-weight: 600;
    text-align: center;
    opacity: 0;
    transition: opacity 0.3s ease 0.3s;
    pointer-events: none;
}

.bkbg-ir-container.is-revealed .bkbg-ir-revealed-label {
    opacity: 1;
}

/* ── Sweep style ── */
.bkbg-ir-overlay.style-sweep {
    transition-property: transform, opacity;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

.bkbg-ir-container.is-revealed .bkbg-ir-overlay.style-sweep.dir-left  { transform: translateX(100%); }
.bkbg-ir-container.is-revealed .bkbg-ir-overlay.style-sweep.dir-right { transform: translateX(-100%); }
.bkbg-ir-container.is-revealed .bkbg-ir-overlay.style-sweep.dir-top   { transform: translateY(100%); }
.bkbg-ir-container.is-revealed .bkbg-ir-overlay.style-sweep.dir-bottom{ transform: translateY(-100%); }

/* ── Fade style ── */
.bkbg-ir-overlay.style-fade {
    transition-property: opacity;
    transition-timing-function: ease;
}
.bkbg-ir-container.is-revealed .bkbg-ir-overlay.style-fade { opacity: 0 !important; }

/* ── Zoom style ── */
.bkbg-ir-img.style-zoom {
    transform: scale(1.3);
    transition-property: transform;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}
.bkbg-ir-container.is-revealed .bkbg-ir-img.style-zoom { transform: scale(1); }
.bkbg-ir-overlay.style-zoom {
    transition-property: opacity;
    transition-timing-function: ease;
}
.bkbg-ir-container.is-revealed .bkbg-ir-overlay.style-zoom { opacity: 0 !important; }

/* ── Blur style ── */
.bkbg-ir-img.style-blur {
    filter: blur(20px);
    transform: scale(1.05);
    transition-property: filter, transform;
    transition-timing-function: ease;
}
.bkbg-ir-container.is-revealed .bkbg-ir-img.style-blur {
    filter: blur(0);
    transform: scale(1);
}
.bkbg-ir-overlay.style-blur {
    transition-property: opacity;
    transition-timing-function: ease;
}
.bkbg-ir-container.is-revealed .bkbg-ir-overlay.style-blur { opacity: 0 !important; }

/* ── Caption ── */
.bkbg-ir-caption {
    font-family:      var(--bkbg-ir-cp-font-family, inherit);
    font-size:        var(--bkbg-ir-cp-font-size-d, 13px);
    font-weight:      var(--bkbg-ir-cp-font-weight, 400);
    font-style:       var(--bkbg-ir-cp-font-style, normal);
    text-decoration:  var(--bkbg-ir-cp-text-decoration, none);
    text-transform:   var(--bkbg-ir-cp-text-transform, none);
    line-height:      var(--bkbg-ir-cp-line-height-d, 1.4);
    letter-spacing:   var(--bkbg-ir-cp-letter-spacing-d, normal);
    word-spacing:     var(--bkbg-ir-cp-word-spacing-d, normal);
    margin-top: 8px;
    text-align: center;
}

/* ── Responsive Typography ── */
@media (max-width: 1024px) {
    .bkbg-ir-overlay-label {
        font-size:       var(--bkbg-ir-lb-font-size-t, var(--bkbg-ir-lb-font-size-d, 18px));
        line-height:     var(--bkbg-ir-lb-line-height-t, var(--bkbg-ir-lb-line-height-d, 1.3));
        letter-spacing:  var(--bkbg-ir-lb-letter-spacing-t, var(--bkbg-ir-lb-letter-spacing-d, normal));
        word-spacing:    var(--bkbg-ir-lb-word-spacing-t, var(--bkbg-ir-lb-word-spacing-d, normal));
    }
    .bkbg-ir-caption {
        font-size:       var(--bkbg-ir-cp-font-size-t, var(--bkbg-ir-cp-font-size-d, 13px));
        line-height:     var(--bkbg-ir-cp-line-height-t, var(--bkbg-ir-cp-line-height-d, 1.4));
        letter-spacing:  var(--bkbg-ir-cp-letter-spacing-t, var(--bkbg-ir-cp-letter-spacing-d, normal));
        word-spacing:    var(--bkbg-ir-cp-word-spacing-t, var(--bkbg-ir-cp-word-spacing-d, normal));
    }
}

@media (max-width: 767px) {
    .bkbg-ir-overlay-label {
        font-size:       var(--bkbg-ir-lb-font-size-m, var(--bkbg-ir-lb-font-size-t, var(--bkbg-ir-lb-font-size-d, 18px)));
        line-height:     var(--bkbg-ir-lb-line-height-m, var(--bkbg-ir-lb-line-height-t, var(--bkbg-ir-lb-line-height-d, 1.3)));
        letter-spacing:  var(--bkbg-ir-lb-letter-spacing-m, var(--bkbg-ir-lb-letter-spacing-t, var(--bkbg-ir-lb-letter-spacing-d, normal)));
        word-spacing:    var(--bkbg-ir-lb-word-spacing-m, var(--bkbg-ir-lb-word-spacing-t, var(--bkbg-ir-lb-word-spacing-d, normal)));
    }
    .bkbg-ir-caption {
        font-size:       var(--bkbg-ir-cp-font-size-m, var(--bkbg-ir-cp-font-size-t, var(--bkbg-ir-cp-font-size-d, 13px)));
        line-height:     var(--bkbg-ir-cp-line-height-m, var(--bkbg-ir-cp-line-height-t, var(--bkbg-ir-cp-line-height-d, 1.4)));
        letter-spacing:  var(--bkbg-ir-cp-letter-spacing-m, var(--bkbg-ir-cp-letter-spacing-t, var(--bkbg-ir-cp-letter-spacing-d, normal)));
        word-spacing:    var(--bkbg-ir-cp-word-spacing-m, var(--bkbg-ir-cp-word-spacing-t, var(--bkbg-ir-cp-word-spacing-d, normal)));
    }
}

/* ── Hover cursor ── */
.trigger-hover .bkbg-ir-container {
    cursor: pointer;
}