/**
 * AJAX Blog Showcase - Core Stylesheet
 * 
 * Scoped styles for the AJAX blog grid, filters, cards, and infinite scroll loader.
 */

:root {
    --ab-primary: #414483;
    --ab-primary-hover: #33366a;
    --ab-secondary: #1D3557;
    --ab-card-bg: #ffffff;
    --ab-text-title: #1D3557;
    --ab-text-body: #555555;
    --ab-border-radius: 12px;
}

/* Wrapper Layout */
.ab-blogs-wrapper {
    margin: 0 0 2.5rem;
    font-family: inherit;
    box-sizing: border-box;
    width: 100%;
}

.ab-blogs-wrapper *,
.ab-blogs-wrapper *::before,
.ab-blogs-wrapper *::after {
    box-sizing: border-box;
}

/* Filters (Category Pills) */
.ab-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 24px;
    align-items: center;
}

.ab-filter-btn {
    padding: 8px 18px;
    border-radius: var(--ab-border-radius, 12px);
    background: #f6f6f6;
    color: #333333;
    border: 1px solid transparent;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    line-height: 1.4;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    outline: none;
    user-select: none;
}

.ab-filter-btn:hover {
    transform: translateY(-2px);
    background-color: var(--ab-primary, #414483);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(65, 68, 131, 0.25);
}

.ab-filter-btn.active {
    background: var(--ab-primary, #414483);
    color: #ffffff;
    border-color: var(--ab-primary, #414483);
    box-shadow: 0 6px 18px rgba(65, 68, 131, 0.35);
}

.ab-filter-btn:focus-visible {
    outline: 2px solid var(--ab-primary, #414483);
    outline-offset: 2px;
}

/* Grid Layout */
.ab-grid {
    display: grid;
    gap: 24px;
    grid-template-columns: repeat(var(--ab-cols-desktop, 3), 1fr);
    transition: opacity 0.25s ease;
}

/* Tablet Breakpoint (<= 992px) */
@media (max-width: 992px) {
    .ab-grid {
        grid-template-columns: repeat(var(--ab-cols-tablet, 2), 1fr);
        gap: 20px;
    }
}

/* Mobile Breakpoint (<= 600px) */
@media (max-width: 600px) {
    .ab-grid {
        grid-template-columns: repeat(var(--ab-cols-mobile, 1), 1fr);
        gap: 16px;
    }
}

/* Card */
.ab-card {
    border-radius: var(--ab-border-radius, 12px);
    overflow: hidden;
    background: var(--ab-card-bg, #ffffff);
    border: 1px solid rgba(0, 0, 0, 0.06);
    display: flex;
    flex-direction: column;
    min-height: 100%;
    transition: box-shadow 0.25s ease, transform 0.25s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.ab-card:hover {
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
    transform: translateY(-4px);
}

/* Card Media / Image (Full Width) */
.ab-card-media {
    width: 100% !important;
    max-width: 100% !important;
    overflow: hidden;
    flex: 0 0 auto;
    position: relative;
    background: #f1f5f9;
    margin: 0 !important;
    padding: 0 !important;
    display: block !important;
}

.ab-card-img-link {
    display: block !important;
    width: 100% !important;
    max-width: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
    overflow: hidden;
    text-decoration: none !important;
    border-bottom: none !important;
}

.ab-card-media img,
.ab-card-img {
    width: 100% !important;
    min-width: 100% !important;
    max-width: 100% !important;
    height: 220px;
    object-fit: cover;
    display: block !important;
    margin: 0 !important;
    padding: 0 !important;
    border: none !important;
    transition: transform 0.4s ease;
}

.ab-card:hover .ab-card-media img,
.ab-card:hover .ab-card-img {
    transform: scale(1.05);
}

/* Card Body */
.ab-card-body {
    padding: 18px 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    flex: 1 1 auto;
}

.ab-card-title-link {
    text-decoration: none !important;
    text-decoration-line: none !important;
    border-bottom: none !important;
    color: inherit;
    display: block;
}

.ab-card-title {
    margin: 0;
    font-size: 19px;
    font-weight: 700;
    line-height: 1.35;
    color: var(--ab-text-title, #1D3557);
    text-decoration: none !important;
    text-decoration-line: none !important;
    border-bottom: none !important;
    transition: color 0.2s ease;
}

.ab-card-title:hover,
.ab-card-title-link:hover .ab-card-title {
    color: var(--ab-primary, #414483);
    text-decoration: none !important;
    text-decoration-line: none !important;
}

.ab-card-excerpt {
    color: var(--ab-text-body, #555555);
    font-size: 14.5px;
    line-height: 1.6;
    margin: 0;
    flex: 1 1 auto;
}

/* Read More / Action Button */
.ab-readmore {
    align-self: flex-start;
    display: inline-flex;
    align-items: center;
    text-decoration: none !important;
    text-decoration-line: none !important;
    border-bottom: none !important;
    padding: 9px 18px;
    border-radius: var(--ab-border-radius, 10px);
    background: var(--ab-primary, #414483);
    color: #ffffff;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.2s ease;
    border: none;
    cursor: pointer;
    margin-top: 6px;
}

.ab-readmore:hover,
.ab-readmore:focus,
.ab-readmore:active {
    background: var(--ab-secondary, #1D3557);
    color: #ffffff;
    transform: translateX(2px);
    text-decoration: none !important;
    text-decoration-line: none !important;
    border-bottom: none !important;
}

/* Explicitly disable all underlines on any links within the showcase */
.ab-blogs-wrapper a,
.ab-blogs-wrapper a:hover,
.ab-blogs-wrapper a:focus,
.ab-blogs-wrapper a:active,
.ab-blogs-wrapper a:visited,
.ab-card a,
.ab-card a:hover,
.ab-card a:focus,
.ab-card a:active,
.ab-card a:visited,
.ab-card-title-link,
.ab-card-title-link:hover,
.ab-card-title-link:focus,
.ab-card-title-link:active,
.ab-card-title-link:visited,
.ab-card-title,
.ab-card-title:hover,
.ab-card-title:focus,
.ab-card-title:active,
.ab-card-title-link .ab-card-title,
.ab-card-title-link:hover .ab-card-title,
.ab-readmore,
.ab-readmore:hover,
.ab-readmore:focus,
.ab-readmore:active,
.ab-readmore:visited,
.ab-filter-btn,
.ab-filter-btn:hover {
    text-decoration: none !important;
    text-decoration-line: none !important;
    border-bottom: none !important;
}

/* Footer & Loader */
.ab-footer {
    text-align: center;
    margin-top: 28px;
    min-height: 40px;
}

.ab-loader {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 16px 0;
    color: #64748b;
    font-size: 14.5px;
    font-weight: 500;
}

.ab-spinner {
    width: 26px;
    height: 26px;
    border: 3px solid rgba(65, 68, 131, 0.15);
    border-top-color: var(--ab-primary, #414483);
    border-radius: 50%;
    animation: ab-spin 0.75s linear infinite;
    display: inline-block;
    flex-shrink: 0;
}

@keyframes ab-spin {
    to {
        transform: rotate(360deg);
    }
}

.ab-load-trigger {
    width: 100%;
    height: 1px;
    opacity: 0;
    pointer-events: none;
}

/* Load More Button (Alternative to infinite scroll) */
.ab-load-more-btn {
    padding: 12px 28px;
    border-radius: var(--ab-border-radius, 10px);
    background: #ffffff;
    color: var(--ab-secondary, #1D3557);
    border: 2px solid var(--ab-secondary, #1D3557);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    outline: none;
}

.ab-load-more-btn:hover {
    background: var(--ab-secondary, #1D3557);
    color: #ffffff;
}

/* No Posts / Status */
.ab-no-posts {
    grid-column: 1 / -1;
    padding: 40px 20px;
    text-align: center;
    color: #64748b;
    font-style: italic;
    font-size: 16px;
    background: #f8fafc;
    border-radius: var(--ab-border-radius, 12px);
    border: 1px dashed #cbd5e1;
}

.ab-all-loaded {
    color: #94a3b8;
    font-size: 13.5px;
    font-style: italic;
    padding: 10px 0;
}

/* Smooth Fade In Animation for newly appended cards */
.ab-card.ab-fade-in {
    animation: abCardFadeIn 0.35s ease-out forwards;
}

@keyframes abCardFadeIn {
    from {
        opacity: 0;
        transform: translateY(14px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}