/* ── image-filter block ────────────────────────────────────────── */

.bkbg-if-wrap {
    width: 100%;
}

.bkbg-if-figure {
    position: relative;
    overflow: hidden;
    margin: 0 auto;
    display: block;
}

.bkbg-if-figure img {
    display: block;
    width: 100%;
    transition: filter 0.3s ease;
}

.bkbg-if-overlay {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.bkbg-if-caption {
    display: block;
    margin: 0;
    padding: 8px 12px;
    text-align: center;
    font-family:      var(--bkbg-if-cp-font-family, inherit);
    font-size:        var(--bkbg-if-cp-font-size-d, var(--bkbg-if-cp-sz, 14px));
    font-weight:      var(--bkbg-if-cp-font-weight, var(--bkbg-if-cp-w, 400));
    font-style:       var(--bkbg-if-cp-font-style, normal);
    text-decoration:  var(--bkbg-if-cp-text-decoration, none);
    text-transform:   var(--bkbg-if-cp-text-transform, none);
    line-height:      var(--bkbg-if-cp-line-height-d, var(--bkbg-if-cp-lh, 1.5));
    letter-spacing:   var(--bkbg-if-cp-letter-spacing-d, normal);
    word-spacing:     var(--bkbg-if-cp-word-spacing-d, normal);
}

/* ── Responsive typography ────────────────────────────────────── */
@media (max-width: 1024px) {
    .bkbg-if-caption {
        font-size:      var(--bkbg-if-cp-font-size-t, var(--bkbg-if-cp-font-size-d, var(--bkbg-if-cp-sz, 14px)));
        line-height:    var(--bkbg-if-cp-line-height-t, var(--bkbg-if-cp-line-height-d, var(--bkbg-if-cp-lh, 1.5)));
        letter-spacing: var(--bkbg-if-cp-letter-spacing-t, var(--bkbg-if-cp-letter-spacing-d, normal));
        word-spacing:   var(--bkbg-if-cp-word-spacing-t, var(--bkbg-if-cp-word-spacing-d, normal));
    }
}
@media (max-width: 767px) {
    .bkbg-if-caption {
        font-size:      var(--bkbg-if-cp-font-size-m, var(--bkbg-if-cp-font-size-t, var(--bkbg-if-cp-font-size-d, var(--bkbg-if-cp-sz, 14px))));
        line-height:    var(--bkbg-if-cp-line-height-m, var(--bkbg-if-cp-line-height-t, var(--bkbg-if-cp-line-height-d, var(--bkbg-if-cp-lh, 1.5))));
        letter-spacing: var(--bkbg-if-cp-letter-spacing-m, var(--bkbg-if-cp-letter-spacing-t, var(--bkbg-if-cp-letter-spacing-d, normal)));
        word-spacing:   var(--bkbg-if-cp-word-spacing-m, var(--bkbg-if-cp-word-spacing-t, var(--bkbg-if-cp-word-spacing-d, normal)));
    }
}

/* ── Interactive controls ─────────────────────────────────────── */
.bkbg-if-controls {
    margin-top: 16px;
    background: #1a1a2e;
    border-radius: 12px;
    padding: 20px 24px;
    color: #eee;
}

.bkbg-if-controls-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    gap: 12px;
    flex-wrap: wrap;
}

.bkbg-if-controls-top h4 {
    margin: 0;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.04em;
    color: #ccc;
    text-transform: uppercase;
}

.bkbg-if-preset-select {
    background: #2a2a3e;
    color: #eee;
    border: 1px solid #3a3a5e;
    border-radius: 6px;
    padding: 5px 10px;
    font-size: 13px;
    cursor: pointer;
}

.bkbg-if-reset-btn {
    background: #3a3a5e;
    color: #ccc;
    border: none;
    border-radius: 6px;
    padding: 5px 14px;
    font-size: 12px;
    cursor: pointer;
    transition: background 0.18s;
}

.bkbg-if-reset-btn:hover {
    background: #5a5a8e;
    color: #fff;
}

/* ── Slider rows ──────────────────────────────────────────────── */
.bkbg-if-sliders {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 12px 24px;
}

.bkbg-if-slider-row {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.bkbg-if-slider-label {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: #aaa;
}

.bkbg-if-slider-label span:last-child {
    color: #7c88ff;
    font-weight: 600;
    min-width: 36px;
    text-align: right;
}

.bkbg-if-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 4px;
    border-radius: 2px;
    background: #3a3a5e;
    outline: none;
    cursor: pointer;
}

.bkbg-if-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #7c88ff;
    cursor: pointer;
    border: 2px solid #fff;
    box-shadow: 0 0 4px rgba(124,136,255,0.6);
    transition: transform 0.15s;
}

.bkbg-if-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.bkbg-if-slider::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #7c88ff;
    cursor: pointer;
    border: 2px solid #fff;
}

/* ── Responsive ───────────────────────────────────────────────── */
@media (max-width: 600px) {
    .bkbg-if-sliders {
        grid-template-columns: 1fr;
    }
    .bkbg-if-controls-top {
        flex-direction: column;
        align-items: flex-start;
    }
}