/* ============================================================
   ALBUM FILTER — nút lọc/sắp xếp + popup (Pinterest-style)
   Sort theo ngày + chuyển view mode (default 7 cột / compact 10 cột).
   URL param: ?sort=date-desc|date-asc & view=default|compact
   ============================================================ */

/* ── Toolbar wrap — đặt filter button góc phải, cách lề phải 100px ─ */
.blt-masonry-toolbar,
.blt-album-toolbar {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    padding: 4px 100px 12px 36px;
}

@media (max-width: 1199px) {
    .blt-masonry-toolbar,
    .blt-album-toolbar {
        padding-right: 48px;
    }
}

@media (max-width: 768px) {
    .blt-masonry-toolbar,
    .blt-album-toolbar {
        padding: 0 12px 6px;
    }
}

.blt-album-filter {
    position: relative;
    display: inline-flex;
    z-index: 50;
}

/* ── Button trigger ──────────────────────────────────────── */
.blt-album-filter__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    padding: 0;
    border: 0;
    border-radius: 8px;
    background: transparent;
    color: #000000;
    cursor: pointer;
    transition: background 0.15s ease;
    appearance: none;
    -webkit-appearance: none;
}

.blt-album-filter__btn svg {
    width: 24px;
    height: 24px;
    display: block;
}

.blt-album-filter__btn:hover,
.blt-album-filter__btn[aria-expanded="true"] {
    background: #F6F6F3;
}

.blt-album-filter__btn:focus { outline: none; }
.blt-album-filter__btn:focus-visible {
    outline: 2px solid #000000;
    outline-offset: 2px;
}

/* ── Popup panel ─────────────────────────────────────────── */
.blt-album-filter__panel {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 220px;
    background: #ffffff;
    border-radius: 8px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12),
                0 2px 8px rgba(0, 0, 0, 0.08);
    padding: 8px;
    z-index: 100;
    animation: blt-filter-pop 0.15s ease-out;
}

.blt-album-filter__panel[hidden] {
    display: none;
}

@keyframes blt-filter-pop {
    from {
        opacity: 0;
        transform: translateY(-4px) scale(0.96);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* ── Group ───────────────────────────────────────────────── */
.blt-album-filter__group + .blt-album-filter__group {
    border-top: 1px solid #ececec;
    margin-top: 6px;
    padding-top: 6px;
}

.blt-album-filter__group-title {
    margin: 0;
    padding: 8px 12px 6px;
    font-family: var(--blog-font-body, 'Nunito', sans-serif);
    font-size: 0.78rem;
    font-weight: 500;
    color: #767676;
    line-height: 1;
}

/* ── Option button ───────────────────────────────────────── */
.blt-album-filter__option {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    width: 100%;
    padding: 10px 12px;
    border: 0;
    border-radius: 8px;
    background: transparent;
    color: #000000;
    font-family: var(--blog-font-body, 'Nunito', sans-serif);
    font-size: 0.92rem;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    transition: background 0.15s ease;
    appearance: none;
    -webkit-appearance: none;
    line-height: 1.3;
}

.blt-album-filter__option:hover {
    background: #F6F6F3;
}

.blt-album-filter__option:focus { outline: none; }
.blt-album-filter__option:focus-visible {
    background: #F6F6F3;
}

.blt-album-filter__check {
    width: 18px;
    height: 18px;
    display: none;
    flex-shrink: 0;
    color: #000000;
}

.blt-album-filter__option.is-active .blt-album-filter__check {
    display: block;
}

/* ============================================================
   VIEW MODE — 3 cấp: Hiển thị lớn / Mặc định / Thu gọn
   - large    → cards to nhất, không gian thoáng
   - default  → trung bình, baseline render server-side (no FOUC)
   - compact  → cards nhỏ nhất, fit nhiều ảnh nhất / màn hình
   Mutually exclusive trên cùng 1 grid (JS đảm bảo).
   ============================================================ */

/* ── Masonry grid (single album taxonomy + Timeline + Videos) ── */

/* Large — phóng to, cards lớn, gap rộng (cũ là default) */
.blt-masonry-grid--large {
    grid-template-columns: repeat(auto-fill, minmax(216px, 1fr)) !important;
    gap: 16px !important;
}
@media (max-width: 768px) {
    .blt-masonry-grid--large {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)) !important;
        gap: 12px !important;
    }
}

/* Default — mặc định mới, baseline (cũ là compact) */
.blt-masonry-grid--default {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)) !important;
    gap: 10px !important;
}
@media (max-width: 768px) {
    .blt-masonry-grid--default {
        grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)) !important;
        gap: 8px !important;
    }
}

/* Compact — thu gọn mới, fit nhiều ảnh nhất */
.blt-masonry-grid--compact {
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr)) !important;
    gap: 6px !important;
}
@media (max-width: 768px) {
    .blt-masonry-grid--compact {
        grid-template-columns: repeat(auto-fill, minmax(80px, 1fr)) !important;
        gap: 5px !important;
    }
}

/* Compact view — ẩn overlay text (title + excerpt) khi hover. Pin chỉ rộng
   ~100px, overlay có gradient + 2 dòng title + 3 dòng excerpt → che gần
   hết ảnh, lại chứa <a> trong title chặn click zoom ảnh. Ở compact user
   chỉ cần xem nhanh + click phóng to → bỏ overlay là gọn nhất. */
.blt-masonry-grid--compact .blt-pin__overlay {
    display: none !important;
}

/* ── Album grid (hub tab Albums — card 3:2) ── */

.blt-album-grid--large {
    grid-template-columns: repeat(4, 1fr) !important;
    gap: 16px !important;
}
@media (max-width: 1199px) {
    .blt-album-grid--large { grid-template-columns: repeat(3, 1fr) !important; }
}
@media (max-width: 959px) {
    .blt-album-grid--large { grid-template-columns: repeat(2, 1fr) !important; }
}
@media (max-width: 639px) {
    .blt-album-grid--large { grid-template-columns: 1fr !important; }
}

.blt-album-grid--default {
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)) !important;
    gap: 12px !important;
}
@media (max-width: 768px) {
    .blt-album-grid--default {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)) !important;
    }
}

.blt-album-grid--compact {
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)) !important;
    gap: 8px !important;
}
@media (max-width: 768px) {
    .blt-album-grid--compact {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr)) !important;
        gap: 6px !important;
    }
}

/* ============================================================
   ALBUM CARD BODY — Layout đồng đều theo view mode
   - body có min-height riêng cho từng mode
   - title/desc clamp số dòng tuỳ kích cỡ card
   - link luôn dính bottom (margin-top:auto đã set ở album.css)
   ============================================================ */

/* Large — card to, hiển thị nhiều thông tin */
.blt-album-grid--large .blt-album-card__body {
    min-height: 150px;
    padding: 18px 20px 20px;
}
.blt-album-grid--large .blt-album-card__title {
    font-size: 1.05rem;
    -webkit-line-clamp: 2;
    line-clamp: 2;
}
.blt-album-grid--large .blt-album-card__desc {
    -webkit-line-clamp: 3;
    line-clamp: 3;
}

/* Default — cân đối */
.blt-album-grid--default .blt-album-card__body {
    min-height: 115px;
    padding: 12px 14px 14px;
}
.blt-album-grid--default .blt-album-card__title {
    font-size: 0.92rem;
    margin-bottom: 6px;
    -webkit-line-clamp: 2;
    line-clamp: 2;
}
.blt-album-grid--default .blt-album-card__desc {
    font-size: 0.78rem;
    margin-bottom: 8px;
    -webkit-line-clamp: 2;
    line-clamp: 2;
}
.blt-album-grid--default .blt-album-card__link {
    font-size: 0.76rem;
}

/* Compact — card nhỏ nhất, tối giản: chỉ title + link, ẩn desc */
.blt-album-grid--compact .blt-album-card__body {
    min-height: 60px;
    padding: 8px 10px 10px;
}
.blt-album-grid--compact .blt-album-card__title {
    font-size: 0.8rem;
    margin-bottom: 4px;
    line-height: 1.25;
    -webkit-line-clamp: 1;
    line-clamp: 1;
}
.blt-album-grid--compact .blt-album-card__desc {
    display: none; /* Quá hẹp để hiển thị desc — ưu tiên scan nhiều card */
}
.blt-album-grid--compact .blt-album-card__link {
    font-size: 0.7rem;
}

/* Responsive — Mobile/Tablet ≤768px: thu gọn padding & font cho large/default */
@media (max-width: 768px) {
    .blt-album-grid--large .blt-album-card__body {
        min-height: 130px;
        padding: 14px 14px 14px;
    }
    .blt-album-grid--large .blt-album-card__title { font-size: 0.95rem; }

    .blt-album-grid--default .blt-album-card__body {
        min-height: 100px;
        padding: 10px 12px 12px;
    }

    .blt-album-grid--compact .blt-album-card__body {
        min-height: 52px;
        padding: 6px 8px 8px;
    }
    .blt-album-grid--compact .blt-album-card__title { font-size: 0.74rem; }
    .blt-album-grid--compact .blt-album-card__link  { font-size: 0.66rem; }
}

/* SP ≤480px: giảm thêm cho compact + default — màn nhỏ */
@media (max-width: 480px) {
    .blt-album-grid--compact .blt-album-card__link {
        /* Ẩn link "Xem Album →" trên SP compact để gọn; cả card vẫn clickable
           qua overlay hover anchor → không mất chức năng. */
        display: none;
    }
    .blt-album-grid--compact .blt-album-card__body {
        min-height: 40px;
    }
}