/* ─────────────────────────────────────────────────────────────────────────────
   Image Slider — bkbg-is-
   ───────────────────────────────────────────────────────────────────────────── */

.bkbg-is-wrapper {
    position: relative;
    overflow: hidden;
    border-radius: var(--bkbg-is-radius, 10px);
    height: var(--bkbg-is-height, 480px);
    background: #111;
    user-select: none;
    touch-action: pan-y;
}

.bkbg-is-slider {
    height: 100%;
    position: relative;
    overflow: hidden;
}

/* ── Slide base ─────────────────────────────────────────────────────────────- */
.bkbg-is-slide {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.55s ease, transform 0.55s ease;
    z-index: 0;
    pointer-events: none;
}

.bkbg-is-slide.bkbg-is-slide-active {
    opacity: 1;
    z-index: 1;
    pointer-events: auto;
}

/* ── Slide transition: slide ─────────────────────────────────────────────── */
.bkbg-is-trans-slide .bkbg-is-slide {
    transform: translateX(100%);
    opacity: 1;
    transition: transform 0.55s cubic-bezier(0.4, 0, 0.2, 1);
}

.bkbg-is-trans-slide .bkbg-is-slide.bkbg-is-slide-active {
    transform: translateX(0);
}

.bkbg-is-trans-slide .bkbg-is-slide.bkbg-is-slide-exit {
    transform: translateX(-100%);
}

/* ── Slide transition: fade ──────────────────────────────────────────────── */
.bkbg-is-trans-fade .bkbg-is-slide {
    transform: none;
    opacity: 0;
    transition: opacity 0.6s ease;
}

.bkbg-is-trans-fade .bkbg-is-slide.bkbg-is-slide-active {
    opacity: 1;
}

/* ── Image ─────────────────────────────────────────────────────────────────── */
.bkbg-is-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* ── Placeholder (editor) ─────────────────────────────────────────────────── */
.bkbg-is-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #e5e7eb;
    color: #6b7280;
    font-size: 14px;
    border-radius: var(--bkbg-is-radius, 10px);
}

/* ── Caption ───────────────────────────────────────────────────────────────── */
.bkbg-is-caption {
    position: absolute;
    z-index: 2;
    padding: 20px 28px;
    background: var(--bkbg-is-cap-bg, rgba(0,0,0,0.45));
    color: var(--bkbg-is-cap-color, #fff);
}

.bkbg-is-cap-bottom-left   { bottom: 0; left: 0; right: 0; text-align: left; }
.bkbg-is-cap-bottom-center { bottom: 0; left: 0; right: 0; text-align: center; }
.bkbg-is-cap-center        { inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; background: var(--bkbg-is-cap-bg, rgba(0,0,0,0.4)); }

.bkbg-is-caption h2.bkbg-is-title,
.bkbg-is-caption .bkbg-is-title {
    font-family: var(--bkbg-is-tt-font-family, inherit);
    font-size: var(--bkbg-is-tt-font-size-d, var(--bkbg-is-title-sz, 32px));
    font-weight: var(--bkbg-is-tt-font-weight, 800);
    font-style: var(--bkbg-is-tt-font-style, normal);
    text-decoration: var(--bkbg-is-tt-text-decoration, none);
    text-transform: var(--bkbg-is-tt-text-transform, none);
    line-height: var(--bkbg-is-tt-line-height-d, 1.2);
    letter-spacing: var(--bkbg-is-tt-letter-spacing-d, normal);
    word-spacing: var(--bkbg-is-tt-word-spacing-d, normal);
    color: var(--bkbg-is-cap-color, #fff);
    margin: 0 0 8px;
    text-shadow: 0 2px 8px rgba(0,0,0,0.35);
}

.bkbg-is-subtitle {
    font-family: var(--bkbg-is-st-font-family, inherit);
    font-size: var(--bkbg-is-st-font-size-d, var(--bkbg-is-sub-sz, 16px));
    font-weight: var(--bkbg-is-st-font-weight, 400);
    font-style: var(--bkbg-is-st-font-style, normal);
    text-decoration: var(--bkbg-is-st-text-decoration, none);
    text-transform: var(--bkbg-is-st-text-transform, none);
    line-height: var(--bkbg-is-st-line-height-d, 1.5);
    letter-spacing: var(--bkbg-is-st-letter-spacing-d, normal);
    word-spacing: var(--bkbg-is-st-word-spacing-d, normal);
    color: var(--bkbg-is-cap-color, #fff);
    margin: 0 0 16px;
    opacity: 0.9;
    text-shadow: 0 1px 4px rgba(0,0,0,0.3);
}

/* ── Button ────────────────────────────────────────────────────────────────── */
.bkbg-is-btn {
    display: inline-block;
    padding: 10px 22px;
    border-radius: 6px;
    font-weight: 700;
    font-size: 15px;
    text-decoration: none;
    transition: opacity 0.2s, transform 0.2s;
    cursor: pointer;
}

.bkbg-is-btn:hover { opacity: 0.88; transform: translateY(-1px); }

.bkbg-is-btn-primary {
    background: var(--bkbg-is-accent, #2563eb);
    color: #fff;
}

.bkbg-is-btn-outline {
    background: transparent;
    color: #fff;
    border: 2px solid #fff;
}

.bkbg-is-btn-ghost {
    background: transparent;
    color: #fff;
    text-decoration: underline;
    padding: 10px 0;
}

/* ── Arrows ────────────────────────────────────────────────────────────────── */
.bkbg-is-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
    background: rgba(0,0,0,0.45);
    color: #fff;
    border: none;
    cursor: pointer;
    font-size: 28px;
    line-height: 1;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s, transform 0.2s;
}

.bkbg-is-arrow:hover { background: rgba(0,0,0,0.72); }

.bkbg-is-arrow-prev { left: 12px; }
.bkbg-is-arrow-next { right: 12px; }

.bkbg-is-arrow-rounded { border-radius: 8px; }
.bkbg-is-arrow-circle  { border-radius: 50%; }
.bkbg-is-arrow-square  { border-radius: 0; }

/* ── Dots ──────────────────────────────────────────────────────────────────── */
.bkbg-is-dots {
    position: absolute;
    bottom: 14px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 10;
}

.bkbg-is-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255,255,255,0.5);
    border: none;
    cursor: pointer;
    padding: 0;
    transition: background 0.2s, transform 0.2s;
}

.bkbg-is-dot:hover { background: rgba(255,255,255,0.8); }

.bkbg-is-dot-active {
    background: #fff;
    transform: scale(1.3);
}

/* ── Responsive ────────────────────────────────────────────────────────────── */
@media (max-width: 1024px) {
    .bkbg-is-caption h2.bkbg-is-title,
    .bkbg-is-caption .bkbg-is-title {
        font-size: var(--bkbg-is-tt-font-size-t, var(--bkbg-is-tt-font-size-d, var(--bkbg-is-title-sz, 32px)));
        line-height: var(--bkbg-is-tt-line-height-t, var(--bkbg-is-tt-line-height-d, 1.2));
        letter-spacing: var(--bkbg-is-tt-letter-spacing-t, var(--bkbg-is-tt-letter-spacing-d, normal));
        word-spacing: var(--bkbg-is-tt-word-spacing-t, var(--bkbg-is-tt-word-spacing-d, normal));
    }
    .bkbg-is-subtitle {
        font-size: var(--bkbg-is-st-font-size-t, var(--bkbg-is-st-font-size-d, var(--bkbg-is-sub-sz, 16px)));
        line-height: var(--bkbg-is-st-line-height-t, var(--bkbg-is-st-line-height-d, 1.5));
        letter-spacing: var(--bkbg-is-st-letter-spacing-t, var(--bkbg-is-st-letter-spacing-d, normal));
        word-spacing: var(--bkbg-is-st-word-spacing-t, var(--bkbg-is-st-word-spacing-d, normal));
    }
}

@media (max-width: 767px) {
    .bkbg-is-caption h2.bkbg-is-title,
    .bkbg-is-caption .bkbg-is-title {
        font-size: var(--bkbg-is-tt-font-size-m, var(--bkbg-is-tt-font-size-t, var(--bkbg-is-title-sz, 32px)));
        line-height: var(--bkbg-is-tt-line-height-m, var(--bkbg-is-tt-line-height-t, var(--bkbg-is-tt-line-height-d, 1.2)));
        letter-spacing: var(--bkbg-is-tt-letter-spacing-m, var(--bkbg-is-tt-letter-spacing-t, var(--bkbg-is-tt-letter-spacing-d, normal)));
        word-spacing: var(--bkbg-is-tt-word-spacing-m, var(--bkbg-is-tt-word-spacing-t, var(--bkbg-is-tt-word-spacing-d, normal)));
    }
    .bkbg-is-subtitle {
        font-size: var(--bkbg-is-st-font-size-m, var(--bkbg-is-st-font-size-t, var(--bkbg-is-sub-sz, 16px)));
        line-height: var(--bkbg-is-st-line-height-m, var(--bkbg-is-st-line-height-t, var(--bkbg-is-st-line-height-d, 1.5)));
        letter-spacing: var(--bkbg-is-st-letter-spacing-m, var(--bkbg-is-st-letter-spacing-t, var(--bkbg-is-st-letter-spacing-d, normal)));
        word-spacing: var(--bkbg-is-st-word-spacing-m, var(--bkbg-is-st-word-spacing-t, var(--bkbg-is-st-word-spacing-d, normal)));
    }
}

@media (max-width: 600px) {
    .bkbg-is-wrapper {
        height: var(--bkbg-is-mob-h, 280px);
    }
    .bkbg-is-caption { padding: 12px 16px; }
    .bkbg-is-arrow { width: 36px; height: 36px; font-size: 20px; }
}