/* ==========================================================================
   MOSAIC GRID / CATEGORIES SECTION - PURE BEM STANDARD
   ========================================================================== */
.mosaic-grid { 
    padding: var(--section-pad-y) 0; 
    background-color: var(--color-primary); 
}



/* LƯỚI BẤT ĐỐI XỨNG MOSAIC GRID */
.mosaic-grid__grid { 
    display: grid; 
    grid-template-columns: repeat(3, 1fr); /* 3 cột bằng nhau */
    grid-template-rows: auto auto; 
    gap: var(--card-gap); 
    margin-top: 40px; 
}

.mosaic-grid__card { 
    position: relative; 
    overflow: hidden; 
    border-radius: var(--radius-card); 
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
    width: 100%;
    display: block;
    text-decoration: none;
}

/* Cột đầu tiên (Cột trái) trải dọc 100% tự động theo 2 hàng */
.mosaic-grid__card--tall {
    grid-column: 1 / 2;
    grid-row: 1 / 3;
    height: 100%;
}

/* 4 Card bên hông tỉ lệ vuông 1:1 */
.mosaic-grid__card:not(.mosaic-grid__card--tall) {
    aspect-ratio: 1 / 1; 
    height: auto;
}

.mosaic-grid__img { 
    width: 100%; 
    height: 100%; 
    object-fit: cover; 
    transition: var(--transition-base); 
}

.mosaic-grid__card:hover .mosaic-grid__img { 
    transform: scale(1.04); 
}

/* Lớp phủ Overlay */
.mosaic-grid__overlay { 
    position: absolute; 
    inset: 0; /* top: 0, left: 0, width: 100%, height: 100% */
    background-color: rgba(0, 0, 0, 0.35); 
    display: flex; 
    align-items: center; 
    justify-content: center; 
    padding: 20px;
    box-sizing: border-box;
    transition: var(--transition-base);
}

.mosaic-grid__card:hover .mosaic-grid__overlay {
    background-color: rgba(0, 0, 0, 0.45);
}

.mosaic-grid__overlay span { 
    font-family: var(--ff-h3);
    font-size: var(--fs-h3);
    line-height: var(--lh-h3);
    font-weight: var(--fw-h3);
    color: var(--text-white); 
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3); 
    text-align: center;
}

/* Nút bấm phía dưới */
.mosaic-grid__btn-wrapper {
    margin-top: 50px;
    text-align: center;
}

.mosaic-grid__btn {
    font-family: var(--ff-btn-m);
    font-size: var(--fs-btn-m);
    line-height: var(--lh-btn-m);
    font-weight: var(--fw-btn-m);
    border: 1px solid var(--color-accent);
    color: var(--color-accent);
    background: transparent;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 30px;
    border-radius: var(--radius-atom);
    transition: var(--transition-base);
}

.mosaic-grid__btn:hover {
    background-color: var(--color-accent);
    color: var(--text-white);
}