/* Gallery block — layout theo số lượng ảnh (P1) — bo góc: var(--p1-media-radius) */
.block-gallery {
    display: grid;
    gap: 6px;
    width: 100%;
}

.block-gallery__item {
    display: block;
    overflow: hidden;
    position: relative;
    line-height: 0;
    border-radius: 8px;
    transition: opacity .2s ease;
}

    .block-gallery__item:hover {
        opacity: .92;
    }

    .block-gallery__item img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        display: block;
        border-radius: 8px;
    }

.block-gallery--inset {
    padding-left: 1%;
    padding-right: 1%;
}

/* 1 ảnh — full width */
.block-gallery--n1 {
    grid-template-columns: 1fr;
}

    .block-gallery--n1 .block-gallery__item {
        aspect-ratio: 16 / 10;
    }

/* 2 ảnh — 50/50 */
.block-gallery--n2 {
    grid-template-columns: 1fr 1fr;
}

    .block-gallery--n2 .block-gallery__item {
        aspect-ratio: 4 / 3;
    }

/* 3 ảnh — trái lớn 2/3, phải 2 ảnh xếp dọc */
.block-gallery--n3 {
    grid-template-columns: 2fr 1fr;
    grid-template-rows: 1fr 1fr;
    min-height: 280px;
}

    .block-gallery--n3 .block-gallery__item:first-child {
        grid-row: 1 / 3;
        grid-column: 1;
    }

    .block-gallery--n3 .block-gallery__item:nth-child(2) {
        grid-column: 2;
        grid-row: 1;
    }

    .block-gallery--n3 .block-gallery__item:nth-child(3) {
        grid-column: 2;
        grid-row: 2;
    }

/* 4 ảnh — lưới 2×2, bo góc ngoài block */
.block-gallery--n4 {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: 4px;
}

    .block-gallery--n4 .block-gallery__item {
        aspect-ratio: 1;
        min-height: 120px;
    }

/* 5 ảnh — hàng trên 2, hàng dưới 3 */
.block-gallery--n5 {
    grid-template-columns: repeat(6, 1fr);
    gap: 6px;
}

    .block-gallery--n5 .block-gallery__item:nth-child(1),
    .block-gallery--n5 .block-gallery__item:nth-child(2) {
        grid-column: span 3;
        aspect-ratio: 16 / 10;
    }

    .block-gallery--n5 .block-gallery__item:nth-child(3),
    .block-gallery--n5 .block-gallery__item:nth-child(4),
    .block-gallery--n5 .block-gallery__item:nth-child(5) {
        grid-column: span 2;
        aspect-ratio: 4 / 3;
    }

/* 6 ảnh — lưới 3×2 */
.block-gallery--n6 {
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
}

    .block-gallery--n6 .block-gallery__item {
        aspect-ratio: 4 / 3;
        min-height: 100px;
    }

/* 7+ ảnh — lưới 3 cột */
.block-gallery--many {
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
}

    .block-gallery--many .block-gallery__item {
        aspect-ratio: 4 / 3;
    }

@media (max-width: 767.98px) {
    .block-gallery--n2 {
        grid-template-columns: 1fr;
    }

        .block-gallery--n2 .block-gallery__item {
            aspect-ratio: 16 / 10;
        }

    .block-gallery--n3 {
        grid-template-columns: 1fr 1fr;
        grid-template-rows: auto auto auto;
        min-height: 0;
    }

        .block-gallery--n3 .block-gallery__item:first-child {
            grid-column: 1 / -1;
            grid-row: 1;
            aspect-ratio: 16 / 10;
        }

        .block-gallery--n3 .block-gallery__item:nth-child(2) {
            grid-row: 2;
            grid-column: 1;
            aspect-ratio: 4 / 3;
        }

        .block-gallery--n3 .block-gallery__item:nth-child(3) {
            grid-row: 2;
            grid-column: 2;
            aspect-ratio: 4 / 3;
        }

    .block-gallery--n5 {
        grid-template-columns: 1fr 1fr;
    }

        .block-gallery--n5 .block-gallery__item:nth-child(1),
        .block-gallery--n5 .block-gallery__item:nth-child(2),
        .block-gallery--n5 .block-gallery__item:nth-child(3),
        .block-gallery--n5 .block-gallery__item:nth-child(4),
        .block-gallery--n5 .block-gallery__item:nth-child(5) {
            grid-column: span 1;
        }

        .block-gallery--n5 .block-gallery__item:first-child {
            grid-column: 1 / -1;
        }

    .block-gallery--n6,
    .block-gallery--many {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ============================================================
   ContentBlocks collage — đại diện = ô hero, thư viện = ô phụ
   ============================================================ */
.block-collage {
    display: grid;
    gap: 9px;
    width: 100%;
    align-items: stretch;
    justify-items: stretch;
    box-sizing: border-box;
}

.block-collage.block-gallery--inset {
    padding-left: 0;
    padding-right: 0;
}

.block-collage__item {
    display: block;
    position: relative;
    overflow: hidden;
    background: #e2e8f0;
    width: 100%;
    height: 100%;
    min-width: 0;
    min-height: 0;
    align-self: stretch;
    justify-self: stretch;
    line-height: 0;
    border-radius: 8px;
    margin: 0 !important;
}

    .block-collage__item img {
        position: absolute !important;
        inset: 0 !important;
        width: 100% !important;
        height: 100% !important;
        max-width: none !important;
        max-height: none !important;
        min-width: 0 !important;
        min-height: 0 !important;
        margin: 0 !important;
        padding: 0 !important;
        object-fit: cover !important;
        object-position: center center !important;
        display: block !important;
        border-radius: 8px !important;
        box-shadow: none !important;
        transition: transform .35s ease;
    }

    .block-collage__item:hover img {
        transform: scale(1.03);
    }

#OLA .article-content .block-collage .block-collage__item img,
#OLA .html-content .block-collage .block-collage__item img,
#ola .article-content .block-collage .block-collage__item img,
#main-content .article-content .block-collage .block-collage__item img,
#main-content .html-content .block-collage .block-collage__item img,
.article-content .block-collage .block-collage__item img,
.article-body .block-collage .block-collage__item img,
.chitiet-tintuc-page .article-content .block-collage .block-collage__item img,
.content-block-item .block-collage .block-collage__item img {
    position: absolute !important;
    inset: 0 !important;
    width: 100% !important;
    height: 100% !important;
    max-width: none !important;
    max-height: none !important;
    margin: 0 !important;
    object-fit: cover !important;
    object-position: center center !important;
    border-radius: 10px !important;
    box-shadow: none !important;
}

.block-gallery__item,
.block-collage__item,
.content-block-item .block-gallery img,
.content-block-item .block-collage img {
    border-radius: 8px !important;
}

.content-block-item__caption {
    text-align: center !important;
    font-style: italic;
    margin-top: 4px !important;
    margin-bottom: 0 !important;
}

.chitiet-tintuc-page .content-block-item > .content-block-item__caption,
.article-body .content-block-item > .content-block-item__caption,
.content-blocks-stack .content-block-item > .content-block-item__caption {
    margin-top: -8px !important;
}

.block-collage__more {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(15, 23, 42, 0.48);
    color: #fff;
    z-index: 1;
    transition: background .25s ease;
}

.block-collage__item:hover .block-collage__more {
    background: rgba(15, 23, 42, 0.36);
}

.block-collage__more-label {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: .02em;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.55);
}

/* 1 ảnh */
.block-collage--n1 {
    grid-template-columns: 1fr;
}

    .block-collage--n1 .block-collage__item {
        aspect-ratio: 16 / 10;
    }

/* 2 ảnh — không đại diện: 50/50 */
.block-collage--n2.block-collage--equal {
    grid-template-columns: 1fr 1fr;
}

    .block-collage--n2.block-collage--equal .block-collage__item {
        aspect-ratio: 4 / 3;
    }

/* 2 ảnh — có đại diện: 2/3 + 1/3 */
.block-collage--n2.block-collage--hero {
    grid-template-columns: 2fr 1fr;
    grid-template-rows: minmax(0, 1fr);
    aspect-ratio: 16 / 9;
}

/* 3 ảnh — trái lớn + 2 ô phải */
.block-collage--n3 {
    grid-template-columns: 2fr 1fr;
    grid-template-rows: minmax(0, 1fr) minmax(0, 1fr);
    aspect-ratio: 16 / 9;
}

    .block-collage--n3 .block-collage__item:first-child {
        grid-column: 1;
        grid-row: 1 / 3;
    }

/* 4 ảnh — tour: trái lớn, phải 1 rộng + 2 nhỏ */
.block-collage--n4 {
    grid-template-columns: 2fr 1fr 1fr;
    grid-template-rows: minmax(0, 1fr) minmax(0, 1fr);
    aspect-ratio: 16 / 9;
}

    .block-collage--n4 .block-collage__item:nth-child(1) {
        grid-column: 1;
        grid-row: 1 / 3;
    }

    .block-collage--n4 .block-collage__item:nth-child(2) {
        grid-column: 2 / 4;
        grid-row: 1;
    }

    .block-collage--n4 .block-collage__item:nth-child(3) {
        grid-column: 2;
        grid-row: 2;
    }

    .block-collage--n4 .block-collage__item:nth-child(4) {
        grid-column: 3;
        grid-row: 2;
    }

/* 5+ ảnh — tour: trái lớn + 4 ô phải, ô cuối +N */
.block-collage--n5 {
    grid-template-columns: 2fr 1fr 1fr;
    grid-template-rows: minmax(0, 1fr) minmax(0, 1fr);
    aspect-ratio: 16 / 9;
}

    .block-collage--n5 .block-collage__item:nth-child(1) {
        grid-column: 1;
        grid-row: 1 / 3;
    }

    .block-collage--n5 .block-collage__item:nth-child(2) {
        grid-column: 2;
        grid-row: 1;
    }

    .block-collage--n5 .block-collage__item:nth-child(3) {
        grid-column: 3;
        grid-row: 1;
    }

    .block-collage--n5 .block-collage__item:nth-child(4) {
        grid-column: 2;
        grid-row: 2;
    }

    .block-collage--n5 .block-collage__item:nth-child(5) {
        grid-column: 3;
        grid-row: 2;
    }

@media (max-width: 767.98px) {
    .block-collage--n2.block-collage--hero {
        grid-template-columns: 1fr;
        aspect-ratio: auto;
        min-height: 0;
    }

        .block-collage--n2.block-collage--hero .block-collage__item {
            aspect-ratio: 16 / 10;
        }

    .block-collage--n3 {
        grid-template-columns: 1fr 1fr;
        grid-template-rows: auto auto;
        aspect-ratio: auto;
        min-height: 0;
    }

        .block-collage--n3 .block-collage__item:first-child {
            grid-column: 1 / -1;
            grid-row: 1;
            aspect-ratio: 16 / 10;
        }

        .block-collage--n3 .block-collage__item:nth-child(2),
        .block-collage--n3 .block-collage__item:nth-child(3) {
            aspect-ratio: 4 / 3;
        }

    .block-collage--n4 {
        grid-template-columns: 1fr 1fr;
        grid-template-rows: auto auto auto;
        aspect-ratio: auto;
        min-height: 0;
    }

        .block-collage--n4 .block-collage__item:nth-child(1) {
            grid-column: 1 / -1;
            grid-row: 1;
            aspect-ratio: 16 / 10;
        }

        .block-collage--n4 .block-collage__item:nth-child(2) {
            grid-column: 1 / -1;
            grid-row: 2;
            aspect-ratio: 16 / 10;
        }

        .block-collage--n4 .block-collage__item:nth-child(3) {
            grid-column: 1;
            grid-row: 3;
            aspect-ratio: 4 / 3;
        }

        .block-collage--n4 .block-collage__item:nth-child(4) {
            grid-column: 2;
            grid-row: 3;
            aspect-ratio: 4 / 3;
        }

    .block-collage--n5 {
        grid-template-columns: 1fr 1fr;
        grid-template-rows: auto auto auto;
        aspect-ratio: auto;
        min-height: 0;
    }

        .block-collage--n5 .block-collage__item:nth-child(1) {
            grid-column: 1 / -1;
            grid-row: 1;
            aspect-ratio: 16 / 10;
        }

        .block-collage--n5 .block-collage__item:nth-child(2) {
            grid-column: 1;
            grid-row: 2;
            aspect-ratio: 4 / 3;
        }

        .block-collage--n5 .block-collage__item:nth-child(3) {
            grid-column: 2;
            grid-row: 2;
            aspect-ratio: 4 / 3;
        }

        .block-collage--n5 .block-collage__item:nth-child(4) {
            grid-column: 1;
            grid-row: 3;
            aspect-ratio: 4 / 3;
        }

        .block-collage--n5 .block-collage__item:nth-child(5) {
            grid-column: 2;
            grid-row: 3;
            aspect-ratio: 4 / 3;
        }
}