/* Article attachments (documents + images) — teacher themes 1,2,3,12 */
.aa-block {
    margin: 1.75rem 0 0;
    padding: 1.15rem 1.2rem 1.25rem;
    border-radius: 1rem;
    border: 1px solid rgba(15, 23, 42, .08);
    background: linear-gradient(180deg, #f8fafc 0%, #fff 48%);
    box-shadow: 0 1px 2px rgba(15, 23, 42, .04);
}

.aa-block__head {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: .5rem .75rem;
    margin: 0 0 1rem;
}

.aa-block__title {
    margin: 0;
    font-size: 1.05rem;
    font-weight: 800;
    letter-spacing: -.02em;
    color: #0f172a;
    display: inline-flex;
    align-items: center;
    gap: .45rem;
}

.aa-block__title i {
    color: #0ea5e9;
    font-size: .95em;
}

.aa-block__count {
    display: inline-flex;
    align-items: center;
    padding: .2rem .55rem;
    border-radius: 999px;
    font-size: .75rem;
    font-weight: 700;
    color: #0369a1;
    background: #e0f2fe;
    border: 1px solid #bae6fd;
}

/* Documents */
.aa-docs {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: .55rem;
}

.aa-doc {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: .65rem .85rem;
    padding: .7rem .85rem;
    border-radius: .8rem;
    border: 1px solid #e2e8f0;
    background: #fff;
    transition: border-color .15s ease, box-shadow .15s ease;
}

.aa-doc:hover {
    border-color: #7dd3fc;
    box-shadow: 0 8px 20px rgba(14, 165, 233, .08);
}

.aa-doc__icon {
    flex: 0 0 auto;
    width: 2.6rem;
    height: 2.6rem;
    border-radius: .7rem;
    display: grid;
    place-items: center;
    font-size: .68rem;
    font-weight: 800;
    letter-spacing: .03em;
    color: #fff;
    background: linear-gradient(145deg, #64748b, #475569);
    box-shadow: 0 6px 14px rgba(15, 23, 42, .12);
    text-transform: uppercase;
}

.aa-doc__icon.is-pdf { background: linear-gradient(145deg, #ef4444, #b91c1c); }
.aa-doc__icon.is-doc,
.aa-doc__icon.is-docx,
.aa-doc__icon.is-word { background: linear-gradient(145deg, #3b82f6, #1d4ed8); }
.aa-doc__icon.is-xls,
.aa-doc__icon.is-xlsx,
.aa-doc__icon.is-csv { background: linear-gradient(145deg, #22c55e, #15803d); }
.aa-doc__icon.is-ppt,
.aa-doc__icon.is-pptx { background: linear-gradient(145deg, #f97316, #c2410c); }

.aa-doc__body {
    flex: 1 1 12rem;
    min-width: 0;
}

.aa-doc__name {
    display: block;
    font-weight: 700;
    font-size: .92rem;
    color: #0f172a;
    text-decoration: none;
    line-height: 1.35;
    word-break: break-word;
}

.aa-doc__name:hover {
    color: #0284c7;
    text-decoration: underline;
}

.aa-doc__hint {
    display: block;
    margin-top: .15rem;
    font-size: .75rem;
    color: #94a3b8;
    font-weight: 600;
}

.aa-doc__actions {
    display: flex;
    flex-wrap: wrap;
    gap: .4rem;
    margin-left: auto;
}

.aa-btn {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    border-radius: .65rem;
    padding: .4rem .7rem;
    font-size: .8rem;
    font-weight: 700;
    text-decoration: none !important;
    border: 1px solid transparent;
    transition: .15s ease;
    white-space: nowrap;
}

.aa-btn--primary {
    color: #fff !important;
    background: linear-gradient(135deg, #0ea5e9, #6366f1);
    box-shadow: 0 8px 16px rgba(14, 165, 233, .22);
}

.aa-btn--primary:hover {
    filter: brightness(1.05);
    color: #fff !important;
}

.aa-btn--ghost {
    color: #0f172a !important;
    background: #f8fafc;
    border-color: #e2e8f0;
}

.aa-btn--ghost:hover {
    background: #f1f5f9;
    border-color: #cbd5e1;
    color: #0f172a !important;
}

/* Images grid */
.aa-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: .75rem;
}

@media (min-width: 640px) {
    .aa-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: .9rem;
    }
}

.aa-card {
    position: relative;
    display: block;
    border-radius: .9rem;
    overflow: hidden;
    border: 1px solid #e2e8f0;
    background: #f1f5f9;
    aspect-ratio: 1;
    box-shadow: 0 1px 2px rgba(15, 23, 42, .05);
    transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    text-decoration: none !important;
}

.aa-card:hover {
    transform: translateY(-3px);
    border-color: #7dd3fc;
    box-shadow: 0 14px 28px rgba(14, 165, 233, .16);
}

.aa-card__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform .25s ease;
}

.aa-card:hover .aa-card__img {
    transform: scale(1.04);
}

.aa-card__zoom {
    position: absolute;
    right: .5rem;
    bottom: .5rem;
    width: 2rem;
    height: 2rem;
    border-radius: .55rem;
    display: grid;
    place-items: center;
    background: rgba(15, 23, 42, .62);
    color: #fff;
    font-size: .85rem;
    opacity: 0;
    transform: translateY(4px);
    transition: .18s ease;
    pointer-events: none;
}

.aa-card:hover .aa-card__zoom {
    opacity: 1;
    transform: translateY(0);
}

.aa-card__num {
    position: absolute;
    left: .45rem;
    top: .45rem;
    min-width: 1.4rem;
    height: 1.4rem;
    padding: 0 .3rem;
    border-radius: 999px;
    display: grid;
    place-items: center;
    font-size: .68rem;
    font-weight: 800;
    color: #0f172a;
    background: rgba(255, 255, 255, .9);
    box-shadow: 0 2px 8px rgba(15, 23, 42, .12);
}

/* Magnific Popup — full-screen lightbox for article images (larger) */
.mfp-aa-zoom .mfp-container {
    padding: 0 4px;
}
.mfp-aa-zoom .mfp-content {
    max-width: min(1600px, 99vw) !important;
    width: auto !important;
}
.mfp-aa-zoom .mfp-figure {
    background: transparent;
}
.mfp-aa-zoom .mfp-img {
    max-height: 94vh !important;
    max-width: 98vw !important;
    width: auto !important;
    height: auto !important;
    padding: 0 !important;
    border-radius: .35rem;
    box-shadow: 0 20px 50px rgba(0, 0, 0, .45);
}
.mfp-aa-zoom img.mfp-img {
    max-height: 94vh !important;
    max-width: 98vw !important;
}
.mfp-aa-zoom .mfp-bottom-bar {
    margin-top: .65rem;
    padding: 0 .25rem;
}
.mfp-aa-zoom .mfp-title {
    color: #f8fafc;
    font-size: .9rem;
    font-weight: 600;
    line-height: 1.4;
    padding-right: 2.5rem;
    text-align: left;
}
.mfp-aa-zoom .mfp-counter {
    color: #cbd5e1;
    font-size: .8rem;
    font-weight: 700;
    top: .15rem;
}
.mfp-aa-zoom .mfp-close {
    color: #fff !important;
    font-size: 32px;
    opacity: .9;
    right: 0;
    top: -2px;
}
.mfp-aa-zoom .mfp-arrow {
    opacity: .9;
}
.mfp-aa-zoom .mfp-arrow:hover {
    opacity: 1;
}
.mfp-aa-zoom.mfp-bg {
    background: rgba(15, 23, 42, .92);
    opacity: 0.95;
}
/* Zoom animation */
.mfp-with-zoom .mfp-container,
.mfp-with-zoom.mfp-bg {
    opacity: 0;
    transition: all .2s ease-out;
}
.mfp-with-zoom.mfp-ready .mfp-container {
    opacity: 1;
}
.mfp-with-zoom.mfp-ready.mfp-bg {
    opacity: 0.95;
}
.mfp-with-zoom.mfp-removing .mfp-container,
.mfp-with-zoom.mfp-removing.mfp-bg {
    opacity: 0;
}

/* BVI / high contrast safety */
body.bvi-active .aa-block,
body.bvi-active .aa-doc,
body.bvi-active .aa-card {
    box-shadow: none;
}