/* ── Portfolio Grid ─────────────────────────────────────────────────────────── */
.bkbg-pg-wrapper {
    box-sizing: border-box;
    width: 100%;
}

/* Filter bar */
.bkbg-pg-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 28px;
}

.bkbg-pg-filter-btn {
    background: transparent;
    border: 1.5px solid var(--bkbg-pg-accent, #6c3fb5);
    color: var(--bkbg-pg-accent, #6c3fb5);
    border-radius: 99px;
    padding: 6px 18px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.18s ease, color 0.18s ease;
    line-height: 1.4;
}

.bkbg-pg-filter-btn:hover,
.bkbg-pg-filter-btn.is-active {
    background: var(--bkbg-pg-accent, #6c3fb5);
    color: #fff;
}

.bkbg-pg-filter--tabs .bkbg-pg-filter-btn {
    border-radius: 6px;
    border-width: 1.5px;
}

/* Grid */
.bkbg-pg-grid {
    display: grid;
    grid-template-columns: repeat(var(--bkbg-pg-cols, 2), 1fr);
    gap: var(--bkbg-pg-gap, 24px);
}

/* Card */
.bkbg-pg-card {
    position: relative;
    overflow: hidden;
    border-radius: var(--bkbg-pg-radius, 14px);
    background: var(--bkbg-pg-card-bg, #fff);
    transition: transform 0.24s ease, box-shadow 0.24s ease;
    cursor: pointer;
}

.bkbg-pg-card.bkbg-pg-shadow--sm { box-shadow: 0 1px 4px rgba(0,0,0,0.07); }
.bkbg-pg-card.bkbg-pg-shadow--md { box-shadow: 0 4px 16px rgba(0,0,0,0.10); }

/* Hover: lift */
.bkbg-pg-card.bkbg-pg-hover--lift:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 32px rgba(0,0,0,0.14);
}

/* Image area */
.bkbg-pg-img-wrap {
    position: relative;
    width: 100%;
    overflow: hidden;
}

.bkbg-pg-img-wrap img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.36s ease;
    display: block;
}

.bkbg-pg-card:hover .bkbg-pg-img-wrap img {
    transform: scale(1.05);
}

/* Overlay */
.bkbg-pg-overlay {
    position: absolute;
    inset: 0;
    background: var(--bkbg-pg-overlay-bg, rgba(17,24,39,0.82));
    color: var(--bkbg-pg-overlay-text, #fff);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 20px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.bkbg-pg-card.bkbg-pg-hover--overlay:hover .bkbg-pg-overlay {
    opacity: 1;
}

.bkbg-pg-overlay-title {
    font-size: 15px;
    font-weight: 700;
    margin: 0 0 8px;
}

.bkbg-pg-overlay-desc {
    font-size: 12px;
    margin: 0 0 10px;
    opacity: 0.85;
    line-height: 1.5;
}

.bkbg-pg-overlay-cta {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    color: inherit;
    border: 1.5px solid rgba(255,255,255,0.7);
    padding: 5px 14px;
    border-radius: 6px;
    text-decoration: none;
    align-self: flex-start;
    transition: background 0.18s ease;
}

.bkbg-pg-overlay-cta:hover {
    background: rgba(255,255,255,0.2);
}

/* Category badge (above overlay) */
.bkbg-pg-cat-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    background: var(--bkbg-pg-accent, #6c3fb5);
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 3px 10px;
    border-radius: 99px;
    z-index: 1;
}

/* Card body (info below image) */
.bkbg-pg-body {
    padding: 16px 18px 20px;
}

.bkbg-pg-title {
    font-size: var(--bkbg-pg-title-size, 18px);
    font-weight: 700;
    color: var(--bkbg-pg-title-color, #111827);
    margin: 0 0 6px;
    line-height: 1.3;
}

.bkbg-pg-desc {
    font-size: var(--bkbg-pg-desc-size, 14px);
    color: var(--bkbg-pg-desc-color, #6b7280);
    margin: 0 0 10px;
    line-height: 1.55;
}

/* Tech tags */
.bkbg-pg-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 12px;
}

.bkbg-pg-tag {
    background: var(--bkbg-pg-tag-bg, #f3f0f9);
    color: var(--bkbg-pg-tag-color, #6c3fb5);
    font-size: var(--bkbg-pg-tag-size, 11px);
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 99px;
}

/* CTA link below body */
.bkbg-pg-cta {
    display: inline-block;
    font-size: var(--bkbg-pg-cta-size, 13px);
    font-weight: 700;
    color: var(--bkbg-pg-accent, #6c3fb5);
    text-decoration: none;
    padding: 6px 0;
    transition: opacity 0.18s;
}

.bkbg-pg-cta:hover { opacity: 0.75; }

/* Slide-up hover style */
.bkbg-pg-card.bkbg-pg-hover--slide-up .bkbg-pg-body {
    transform: translateY(0);
    transition: transform 0.28s ease;
}

.bkbg-pg-card.bkbg-pg-hover--slide-up:hover .bkbg-pg-body {
    transform: translateY(-4px);
}

/* Hidden filter items */
.bkbg-pg-card.bkbg-pg-hidden {
    display: none;
}

/* ── Animate on scroll ──────────────────────────────────────────────────────── */
.bkbg-pg-card.bkbg-pg-anim {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.bkbg-pg-card.bkbg-pg-anim.bkbg-pg-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ── Responsive ─────────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
    .bkbg-pg-grid {
        grid-template-columns: repeat(var(--bkbg-pg-cols-tablet, 1), 1fr);
    }
}

@media (max-width: 480px) {
    .bkbg-pg-grid {
        grid-template-columns: 1fr;
    }
}