/* =========================================================
   Post Grid – bkbg-pg-*
   ========================================================= */

/* Wrapper */
.bkbg-pg-wrap {
    --bkbg-pg-cols: 3;
    --bkbg-pg-cols-tab: 2;
    --bkbg-pg-cols-mob: 1;
    --bkbg-pg-gap-x: 24px;
    --bkbg-pg-gap-y: 24px;
    --bkbg-pg-ratio: 56.25%;
    --bkbg-pg-card-bg: #ffffff;
    --bkbg-pg-card-radius: 10px;
    --bkbg-pg-title-color: #111827;
    --bkbg-pg-title-hover: #2563eb;
    --bkbg-pg-exc-color: #6b7280;
    --bkbg-pg-meta-color: #9ca3af;
    --bkbg-pg-link-color: #2563eb;
    --bkbg-pg-border: #e5e7eb;
    box-sizing: border-box;
}

/* Grid */
.bkbg-pg-grid {
    display: grid;
    grid-template-columns: repeat(var(--bkbg-pg-cols), 1fr);
    column-gap: var(--bkbg-pg-gap-x);
    row-gap: var(--bkbg-pg-gap-y);
}

/* Card base */
.bkbg-pg-card {
    background: var(--bkbg-pg-card-bg);
    border-radius: var(--bkbg-pg-card-radius);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

/* Card styles */
.bkbg-pg-card--shadow .bkbg-pg-card {
    box-shadow: 0 1px 4px rgba(0,0,0,.08), 0 4px 12px rgba(0,0,0,.05);
}
.bkbg-pg-card--shadow .bkbg-pg-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(0,0,0,.12), 0 12px 32px rgba(0,0,0,.08);
}
.bkbg-pg-card--outlined .bkbg-pg-card {
    border: 1px solid var(--bkbg-pg-border);
}
.bkbg-pg-card--outlined .bkbg-pg-card:hover {
    border-color: var(--bkbg-pg-link-color);
}
.bkbg-pg-card--elevated .bkbg-pg-card {
    box-shadow: 0 2px 8px rgba(0,0,0,.12);
}
.bkbg-pg-card--elevated .bkbg-pg-card:hover {
    box-shadow: 0 8px 24px rgba(0,0,0,.18);
    transform: translateY(-4px);
}
.bkbg-pg-card--flat .bkbg-pg-card {
    background: #f9fafb;
}

/* Thumbnail */
.bkbg-pg-thumb {
    position: relative;
    overflow: hidden;
    flex-shrink: 0;
}
.bkbg-pg-thumb-inner {
    position: relative;
    width: 100%;
    padding-top: var(--bkbg-pg-ratio);
}
.bkbg-pg-thumb-inner img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease, opacity 0.4s ease;
}

/* Hover effects */
.bkbg-pg-hover--zoom:hover .bkbg-pg-thumb-inner img { transform: scale(1.07); }
.bkbg-pg-hover--fade:hover .bkbg-pg-thumb-inner img  { opacity: 0.75; }
.bkbg-pg-hover--lift:hover                            { transform: translateY(-4px); }

/* Body */
.bkbg-pg-body {
    display: flex;
    flex-direction: column;
    flex: 1;
    padding: 20px;
    gap: 8px;
}

/* Meta */
.bkbg-pg-meta {
    color: var(--bkbg-pg-meta-color);
    font-family: var(--bkbg-pgr-mt-font-family, inherit);
    font-size: var(--bkbg-pgr-mt-font-size-d, 12px);
    font-weight: var(--bkbg-pgr-mt-font-weight, 500);
    font-style: var(--bkbg-pgr-mt-font-style, normal);
    text-decoration: var(--bkbg-pgr-mt-text-decoration, none);
    text-transform: var(--bkbg-pgr-mt-text-transform, none);
    line-height: var(--bkbg-pgr-mt-line-height-d, 1.4);
    letter-spacing: var(--bkbg-pgr-mt-letter-spacing-d, 0.01em);
    word-spacing: var(--bkbg-pgr-mt-word-spacing-d, normal);
}

/* Title */
.bkbg-pg-title { margin: 0; }
.bkbg-pg-wrap h3.bkbg-pg-title {
    font-family: var(--bkbg-pgr-tt-font-family, inherit);
    font-size: var(--bkbg-pgr-tt-font-size-d, 18px);
    font-weight: var(--bkbg-pgr-tt-font-weight, 700);
    font-style: var(--bkbg-pgr-tt-font-style, normal);
    text-decoration: var(--bkbg-pgr-tt-text-decoration, none);
    text-transform: var(--bkbg-pgr-tt-text-transform, none);
    line-height: var(--bkbg-pgr-tt-line-height-d, 1.35);
    letter-spacing: var(--bkbg-pgr-tt-letter-spacing-d, normal);
    word-spacing: var(--bkbg-pgr-tt-word-spacing-d, normal);
}
.bkbg-pg-title a {
    color: var(--bkbg-pg-title-color);
    text-decoration: inherit;
    transition: color 0.2s ease;
}
.bkbg-pg-title a:hover {
    color: var(--bkbg-pg-title-hover);
}

/* Excerpt */
.bkbg-pg-excerpt {
    margin: 0;
    color: var(--bkbg-pg-exc-color);
    flex: 1;
    font-family: var(--bkbg-pgr-ex-font-family, inherit);
    font-size: var(--bkbg-pgr-ex-font-size-d, 14px);
    font-weight: var(--bkbg-pgr-ex-font-weight, 400);
    font-style: var(--bkbg-pgr-ex-font-style, normal);
    text-decoration: var(--bkbg-pgr-ex-text-decoration, none);
    text-transform: var(--bkbg-pgr-ex-text-transform, none);
    line-height: var(--bkbg-pgr-ex-line-height-d, 1.65);
    letter-spacing: var(--bkbg-pgr-ex-letter-spacing-d, normal);
    word-spacing: var(--bkbg-pgr-ex-word-spacing-d, normal);
}

/* Read More — link style */
.bkbg-pg-readmore {
    display: inline-block;
    margin-top: 8px;
    font-size: var(--bkbg-pgr-ex-font-size-d, 14px);
    font-weight: 600;
    color: var(--bkbg-pg-link-color);
    text-decoration: none;
    transition: opacity 0.2s;
}
.bkbg-pg-readmore:hover { opacity: 0.75; }

/* Read More — button style */
.bkbg-pg-readmore--button {
    padding: 8px 18px;
    background: var(--bkbg-pg-link-color);
    color: #fff;
    border-radius: 6px;
    align-self: flex-start;
}
.bkbg-pg-readmore--button:hover { opacity: 0.85; color: #fff; }

/* Read More — arrow style */
.bkbg-pg-readmore--arrow {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    letter-spacing: 0.01em;
}

/* Loading / empty */
.bkbg-pg-loading {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #6b7280;
    font-size: 14px;
    padding: 32px 0;
    justify-content: center;
}
.bkbg-pg-empty {
    color: #9ca3af;
    text-align: center;
    padding: 32px 0;
    font-size: 15px;
}

/* Pagination (frontend rendered) */
.bkbg-pg-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 32px;
    flex-wrap: wrap;
}
.bkbg-pg-pagination button {
    padding: 6px 14px;
    border: 1px solid var(--bkbg-pg-border);
    border-radius: 6px;
    background: #fff;
    color: var(--bkbg-pg-title-color);
    cursor: pointer;
    font-size: 14px;
    transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.bkbg-pg-pagination button:hover,
.bkbg-pg-pagination button.active {
    background: var(--bkbg-pg-link-color);
    color: #fff;
    border-color: var(--bkbg-pg-link-color);
}

/* ── Typography Responsive ── */
@media (max-width: 1024px) {
    .bkbg-pg-wrap h3.bkbg-pg-title {
        font-size: var(--bkbg-pgr-tt-font-size-t, 18px);
        line-height: var(--bkbg-pgr-tt-line-height-t, 1.35);
        letter-spacing: var(--bkbg-pgr-tt-letter-spacing-t, normal);
        word-spacing: var(--bkbg-pgr-tt-word-spacing-t, normal);
    }
    .bkbg-pg-excerpt {
        font-size: var(--bkbg-pgr-ex-font-size-t, 14px);
        line-height: var(--bkbg-pgr-ex-line-height-t, 1.65);
        letter-spacing: var(--bkbg-pgr-ex-letter-spacing-t, normal);
        word-spacing: var(--bkbg-pgr-ex-word-spacing-t, normal);
    }
    .bkbg-pg-meta {
        font-size: var(--bkbg-pgr-mt-font-size-t, 12px);
        line-height: var(--bkbg-pgr-mt-line-height-t, 1.4);
        letter-spacing: var(--bkbg-pgr-mt-letter-spacing-t, 0.01em);
        word-spacing: var(--bkbg-pgr-mt-word-spacing-t, normal);
    }
}

@media (max-width: 767px) {
    .bkbg-pg-wrap h3.bkbg-pg-title {
        font-size: var(--bkbg-pgr-tt-font-size-m, 18px);
        line-height: var(--bkbg-pgr-tt-line-height-m, 1.35);
        letter-spacing: var(--bkbg-pgr-tt-letter-spacing-m, normal);
        word-spacing: var(--bkbg-pgr-tt-word-spacing-m, normal);
    }
    .bkbg-pg-excerpt {
        font-size: var(--bkbg-pgr-ex-font-size-m, 14px);
        line-height: var(--bkbg-pgr-ex-line-height-m, 1.65);
        letter-spacing: var(--bkbg-pgr-ex-letter-spacing-m, normal);
        word-spacing: var(--bkbg-pgr-ex-word-spacing-m, normal);
    }
    .bkbg-pg-meta {
        font-size: var(--bkbg-pgr-mt-font-size-m, 12px);
        line-height: var(--bkbg-pgr-mt-line-height-m, 1.4);
        letter-spacing: var(--bkbg-pgr-mt-letter-spacing-m, 0.01em);
        word-spacing: var(--bkbg-pgr-mt-word-spacing-m, normal);
    }
}

/* ── Responsive ── */
@media (max-width: 1024px) {
    .bkbg-pg-grid { grid-template-columns: repeat(var(--bkbg-pg-cols-tab), 1fr); }
}
@media (max-width: 640px) {
    .bkbg-pg-grid { grid-template-columns: repeat(var(--bkbg-pg-cols-mob), 1fr); }
    .bkbg-pg-body { padding: 14px; }
}