/* ── Tech Stack ─────────────────────────────────────────────────────────────── */
.bkbg-ts-wrapper {
    box-sizing: border-box;
    width: 100%;
}

.bkbg-ts {
    display: flex;
    flex-direction: column;
}

/* Category label */
.bkbg-ts-cat-label {
    font-size: var(--bkbg-ts-cat-size, 12px);
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--bkbg-ts-cat-color, #9ca3af);
    margin: 0 0 16px;
}

/* Grid */
.bkbg-ts-grid {
    display: grid;
}

/* ── Item base ──────────────────────────────────────────────────────────────── */
.bkbg-ts-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    text-align: center;
    transition: transform 0.22s ease, box-shadow 0.22s ease, filter 0.22s ease;
    text-decoration: none;
    cursor: default;
}

a.bkbg-ts-item {
    cursor: pointer;
}

.bkbg-ts-item img {
    width: var(--bkbg-ts-icon-size, 48px);
    height: var(--bkbg-ts-icon-size, 48px);
    object-fit: contain;
    display: block;
    transition: filter 0.22s ease;
    flex-shrink: 0;
}

/* ── Cards display style ────────────────────────────────────────────────────── */
.bkbg-ts--cards .bkbg-ts-item {
    background: var(--bkbg-ts-card-bg, #fff);
    border-radius: var(--bkbg-ts-radius, 12px);
    padding: var(--bkbg-ts-pad, 20px);
    box-shadow: var(--bkbg-ts-shadow, none);
}

.bkbg-ts--cards .bkbg-ts-item.has-border {
    border: 1px solid var(--bkbg-ts-border, #e5e7eb);
}

/* ── Inline display style ───────────────────────────────────────────────────── */
.bkbg-ts--inline .bkbg-ts-item {
    flex-direction: row;
    gap: 10px;
    text-align: left;
}

.bkbg-ts--inline .bkbg-ts-label-wrap {
    align-items: flex-start;
}

/* ── Label ─────────────────────────────────────────────────────────────────── */
.bkbg-ts-label-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.bkbg-ts--inline .bkbg-ts-label-wrap {
    align-items: flex-start;
}

.bkbg-ts-label {
    font-family: var(--bktst-lb-font-family, inherit);
    font-size: var(--bktst-lb-font-size-d, 13px);
    line-height: var(--bktst-lb-line-height-d, 1.3);
    letter-spacing: var(--bktst-lb-letter-spacing-d, normal);
    word-spacing: var(--bktst-lb-word-spacing-d, normal);
    font-weight: var(--bktst-lb-font-weight, 700);
    font-style: var(--bktst-lb-font-style, normal);
    text-decoration: var(--bktst-lb-text-decoration, none);
    text-transform: var(--bktst-lb-text-transform, none);
    color: var(--bkbg-ts-label-color, #111827);
}

.bkbg-ts-desc {
    font-family: var(--bktst-ds-font-family, inherit);
    font-size: var(--bktst-ds-font-size-d, 11px);
    line-height: var(--bktst-ds-line-height-d, 1.4);
    letter-spacing: var(--bktst-ds-letter-spacing-d, normal);
    word-spacing: var(--bktst-ds-word-spacing-d, normal);
    font-weight: var(--bktst-ds-font-weight, 400);
    font-style: var(--bktst-ds-font-style, normal);
    text-decoration: var(--bktst-ds-text-decoration, none);
    text-transform: var(--bktst-ds-text-transform, none);
    color: var(--bkbg-ts-desc-color, #9ca3af);
    margin-top: 2px;
}

/* ── Proficiency dots ───────────────────────────────────────────────────────── */
.bkbg-ts-prof-dots {
    display: flex;
    gap: 3px;
    justify-content: center;
    margin-top: 6px;
}

.bkbg-ts-prof-dots div {
    width: 6px;
    height: 6px;
    border-radius: 50%;
}

/* ── Proficiency bar ────────────────────────────────────────────────────────── */
.bkbg-ts-prof-bar {
    height: 3px;
    background: #e5e7eb;
    border-radius: 3px;
    margin-top: 8px;
    overflow: hidden;
    width: 100%;
}

.bkbg-ts-prof-bar div {
    height: 100%;
    border-radius: 3px;
}

/* ── Proficiency label ──────────────────────────────────────────────────────── */
.bkbg-ts-prof-label {
    font-size: 10px;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 99px;
    display: inline-block;
    margin-top: 6px;
}

/* ── Hover effects ──────────────────────────────────────────────────────────── */
.bkbg-ts-item.bkbg-ts-hover-lift:hover {
    transform: translateY(-5px);
}

.bkbg-ts-item.bkbg-ts-hover-glow:hover {
    box-shadow: 0 0 18px var(--bkbg-ts-accent, #6c3fb5);
}

/* Color on hover: grayscale items get color back */
.bkbg-ts-wrapper[class*="color-on-hover"] .bkbg-ts-item img {
    filter: grayscale(100%);
}

.bkbg-ts-wrapper[class*="color-on-hover"] .bkbg-ts-item:hover img {
    filter: none;
}

/* ── Animate on scroll ──────────────────────────────────────────────────────── */
.bkbg-ts-item.bkbg-ts-anim {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.45s ease, transform 0.45s ease;
}

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

/* ── Responsive ─────────────────────────────────────────────────────────────── */
@media (max-width: 1024px) {
    .bkbg-ts-label {
        font-size: var(--bktst-lb-font-size-t, var(--bktst-lb-font-size-d, 13px));
        line-height: var(--bktst-lb-line-height-t, var(--bktst-lb-line-height-d, 1.3));
        letter-spacing: var(--bktst-lb-letter-spacing-t, var(--bktst-lb-letter-spacing-d, normal));
        word-spacing: var(--bktst-lb-word-spacing-t, var(--bktst-lb-word-spacing-d, normal));
    }
    .bkbg-ts-desc {
        font-size: var(--bktst-ds-font-size-t, var(--bktst-ds-font-size-d, 11px));
        line-height: var(--bktst-ds-line-height-t, var(--bktst-ds-line-height-d, 1.4));
        letter-spacing: var(--bktst-ds-letter-spacing-t, var(--bktst-ds-letter-spacing-d, normal));
        word-spacing: var(--bktst-ds-word-spacing-t, var(--bktst-ds-word-spacing-d, normal));
    }
}

@media (max-width: 767px) {
    .bkbg-ts-label {
        font-size: var(--bktst-lb-font-size-m, var(--bktst-lb-font-size-t, var(--bktst-lb-font-size-d, 13px)));
        line-height: var(--bktst-lb-line-height-m, var(--bktst-lb-line-height-t, var(--bktst-lb-line-height-d, 1.3)));
        letter-spacing: var(--bktst-lb-letter-spacing-m, var(--bktst-lb-letter-spacing-t, var(--bktst-lb-letter-spacing-d, normal)));
        word-spacing: var(--bktst-lb-word-spacing-m, var(--bktst-lb-word-spacing-t, var(--bktst-lb-word-spacing-d, normal)));
    }
    .bkbg-ts-desc {
        font-size: var(--bktst-ds-font-size-m, var(--bktst-ds-font-size-t, var(--bktst-ds-font-size-d, 11px)));
        line-height: var(--bktst-ds-line-height-m, var(--bktst-ds-line-height-t, var(--bktst-ds-line-height-d, 1.4)));
        letter-spacing: var(--bktst-ds-letter-spacing-m, var(--bktst-ds-letter-spacing-t, var(--bktst-ds-letter-spacing-d, normal)));
        word-spacing: var(--bktst-ds-word-spacing-m, var(--bktst-ds-word-spacing-t, var(--bktst-ds-word-spacing-d, normal)));
    }
}

@media (max-width: 768px) {
    .bkbg-ts-grid {
        grid-template-columns: repeat(3, 1fr) !important;
    }
}

@media (max-width: 480px) {
    .bkbg-ts-grid {
        grid-template-columns: repeat(2, 1fr) !important;
    }
}