/* Slide Media Gallery - Frontend Styles */

/* Common Styles */
.rchg_album_wrapper {
    max-width: 100vw;
    margin: 20px auto;
    position: relative;
    overflow: hidden;
}

.rchg_album_wrapper img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Grid Layout */
.rchg_layout_grid .rchg_grid_container {
    display: grid;
    gap: 15px;
    margin: 0;
}

.rchg_layout_grid .rchg_grid_container.rchg_columns_2 {
    grid-template-columns: repeat(2, 1fr);
}

.rchg_layout_grid .rchg_grid_container.rchg_columns_3 {
    grid-template-columns: repeat(3, 1fr);
}

.rchg_layout_grid .rchg_grid_container.rchg_columns_4 {
    grid-template-columns: repeat(4, 1fr);
}

.rchg_layout_grid .rchg_grid_container.rchg_columns_5 {
    grid-template-columns: repeat(5, 1fr);
}

.rchg_layout_grid .rchg_grid_item {
    position: relative;
    overflow: hidden;
    border-radius: 0;
    background: #ffffff00; /* transparent white */
}

.rchg_layout_grid .rchg_grid_item a {
    display: block;
    position: relative;
}

.rchg_layout_grid .rchg_grid_item img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.rchg_layout_grid .rchg_grid_item:hover img {
    transform: scale(1.05);
}

.rchg_layout_grid .rchg_overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.rchg_layout_grid .rchg_grid_item:hover .rchg_overlay {
    opacity: 1;
}

.rchg_layout_grid .rchg_zoom_icon {
    color: #fff;
    font-size: 48px;
}

.rchg_layout_grid .rchg_caption {
    padding: 15px;
    background: #fff;
}

.rchg_layout_grid .rchg_title {
    margin: 0 0 5px 0;
    font-size: 16px;
    font-weight: 600;
    color: #333;
}

.rchg_layout_grid .rchg_description {
    margin: 0;
    font-size: 14px;
    color: #666;
}

/* Slider Layout */
.rchg_layout_slider .rchg_slider_container {
    position: relative;
    overflow: hidden;
    border-radius: 0;
    background: #ffffff00; /* transparent white */
    transition: min-height 0.3s ease;
    min-height: 300px;
    border: 8px solid #fff; /* viền trắng hai bên theo yêu cầu */
    width: calc(100vw - 40px); /* fit device width trừ margin */
    max-width: 1400px;
    margin: 0 auto;
}

.rchg_layout_slider .rchg_slider_track {
    display: flex;
    transition: transform 0.5s ease;
    align-items: center;
    min-height: inherit;
}

.rchg_layout_slider .rchg_slide {
    min-width: 100%;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: inherit;
    padding: 20px 0;
}

.rchg_layout_slider .rchg_slide img {
    width: auto;
    max-width: 100%;
    height: auto;
    max-height: 85vh;
    object-fit: contain;
    display: block;
    margin: 0 auto;
}

.rchg_layout_slider .rchg_slide_caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    color: #fff;
    padding: 30px 20px 20px;
}

.rchg_layout_slider .rchg_slide_title {
    margin: 0 0 10px 0;
    font-size: 24px;
    font-weight: 600;
}

.rchg_layout_slider .rchg_slide_description {
    margin: 0;
    font-size: 16px;
    opacity: 0.9;
}

.rchg_layout_slider .rchg_slider_arrow { /* cleaned legacy block */
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 28px;
    height: 28px;
    background: transparent;
    border: none;
    padding: 0;
}

.rchg_layout_slider .rchg_arrow_prev {
    left: 20px;
}

.rchg_layout_slider .rchg_arrow_next {
    right: 20px;
}

.rchg_layout_slider .rchg_slider_dots {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

.rchg_layout_slider .rchg_dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.55);
    border: none;
    cursor: pointer;
    transition: all 0.25s ease;
}

.rchg_layout_slider .rchg_dot:hover,
.rchg_layout_slider .rchg_dot.rchg_active {
    background: #fff;
    transform: scale(1.4);
}

/* Masonry Layout */
.rchg_layout_masonry .rchg_masonry_container {
    column-gap: 15px;
}

.rchg_layout_masonry .rchg_masonry_container.rchg_columns_2 {
    column-count: 2;
}

.rchg_layout_masonry .rchg_masonry_container.rchg_columns_3 {
    column-count: 3;
}

.rchg_layout_masonry .rchg_masonry_container.rchg_columns_4 {
    column-count: 4;
}

.rchg_layout_masonry .rchg_masonry_container.rchg_columns_5 {
    column-count: 5;
}

.rchg_layout_masonry .rchg_masonry_item {
    break-inside: avoid;
    margin-bottom: 15px;
    border-radius: 0;
    overflow: hidden;
    background: #ffffff00; /* transparent white */
    position: relative;
}

.rchg_layout_masonry .rchg_masonry_item a {
    display: block;
    position: relative;
}

.rchg_layout_masonry .rchg_masonry_item img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.3s ease;
}

.rchg_layout_masonry .rchg_masonry_item:hover img {
    transform: scale(1.05);
}

.rchg_layout_masonry .rchg_overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.rchg_layout_masonry .rchg_masonry_item:hover .rchg_overlay {
    opacity: 1;
}

.rchg_layout_masonry .rchg_zoom_icon {
    color: #fff;
    font-size: 48px;
}

.rchg_layout_masonry .rchg_caption {
    padding: 15px;
    background: #fff;
}

.rchg_layout_masonry .rchg_title {
    margin: 0 0 5px 0;
    font-size: 16px;
    font-weight: 600;
    color: #333;
}

.rchg_layout_masonry .rchg_description {
    margin: 0;
    font-size: 14px;
    color: #666;
}

/* Thumbnail Layout */
.rchg_layout_thumbnail .rchg_thumbnail_main {
    position: relative;
    border-radius: 0;
    overflow: hidden;
    margin-bottom: 15px;
    background: #ffffff00; /* transparent white */
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.rchg_layout_thumbnail .rchg_main_image {
    display: none;
    position: relative;
    width: 100%;
}

.rchg_layout_thumbnail .rchg_main_image.rchg_active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.rchg_layout_thumbnail .rchg_main_image img {
    width: auto;
    height: auto;
    max-height: 85vh; /* phóng to vừa màn hình */
    max-width: 100vw;
    object-fit: contain;
    display: block;
    margin: 0 auto;
}

.rchg_layout_thumbnail .rchg_main_caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    color: #fff;
    padding: 30px 20px 20px;
}

.rchg_layout_thumbnail .rchg_main_title {
    margin: 0 0 10px 0;
    font-size: 24px;
    font-weight: 600;
}

    .rchg_layout_slider .rchg_slider_arrow {
        position: absolute;
        top: 50%;
        transform: translateY(-50%);
        background: rgba(255,255,255,0.85);
        border: 2px solid #fff;
        width: 28px;
        height: 28px;
        border-radius: 0;
        font-size: 14px;
        font-weight: 600;
        cursor: pointer;
        z-index: 20;
        transition: all 0.25s ease;
        display: flex;
        align-items: center;
        justify-content: center;
        color: #111;
        box-shadow: 0 2px 8px rgba(0,0,0,0.25);
    }
    .rchg_layout_slider .rchg_slider_arrow:hover {
        background: #fff;
        color: #000;
        transform: translateY(-50%) scale(1.1);
        box-shadow: 0 3px 10px rgba(0,0,0,0.35);
    }

.rchg_layout_thumbnail .rchg_thumb_arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255,255,255,0.85);
    border: 2px solid #fff;
    width: 30px;
    height: 30px;
    border-radius: 0;
    font-size: 20px;
    cursor: pointer;
    z-index: 10;
    transition: all 0.25s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #111;
    box-shadow: 0 2px 8px rgba(0,0,0,0.25);
}

.rchg_layout_thumbnail .rchg_thumb_arrow:hover {
    background: #fff;
    transform: translateY(-50%) scale(1.1);
    box-shadow: 0 3px 10px rgba(0,0,0,0.35);
}

.rchg_layout_thumbnail .rchg_arrow_prev {
    left: 20px;
}

.rchg_layout_thumbnail .rchg_arrow_next {
    right: 20px;
}

.rchg_layout_thumbnail .rchg_thumbnail_list {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    padding: 10px 0;
}

.rchg_layout_thumbnail .rchg_thumbnail_item {
    min-width: 120px;
    height: 80px;
    cursor: pointer;
    border-radius: 0;
    overflow: hidden;
    border: 3px solid transparent;
    transition: all 0.3s ease;
}

.rchg_layout_thumbnail .rchg_thumbnail_item:hover {
    border-color: #666;
    transform: scale(1.05);
}

.rchg_layout_thumbnail .rchg_thumbnail_item.rchg_active {
    border-color: #0073aa;
}

.rchg_layout_thumbnail .rchg_thumbnail_item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Responsive */
@media (max-width: 768px) {
    .rchg_layout_grid .rchg_grid_container.rchg_columns_3,
    .rchg_layout_grid .rchg_grid_container.rchg_columns_4,
    .rchg_layout_grid .rchg_grid_container.rchg_columns_5 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .rchg_layout_masonry .rchg_masonry_container.rchg_columns_3,
    .rchg_layout_masonry .rchg_masonry_container.rchg_columns_4,
    .rchg_layout_masonry .rchg_masonry_container.rchg_columns_5 {
        column-count: 2;
    }
    
    .rchg_layout_slider .rchg_slide img {
        max-height: 80vh;
    }
    
    .rchg_layout_thumbnail .rchg_main_image img {
        max-height: 70vh;
    }
    
    .rchg_layout_slider .rchg_slider_arrow {
        width: 32px;
        height: 32px;
        font-size: 16px;
    }
    .rchg_layout_thumbnail .rchg_thumb_arrow {
        width: 40px;
        height: 40px;
        font-size: 24px;
    }
    
    .rchg_layout_slider .rchg_slide {
        padding: 10px 0;
    }
    
    .rchg_layout_slider .rchg_slider_container {
        min-height: 200px;
        width: calc(100vw - 20px);
        border: 4px solid #fff;
    }
}

@media (max-width: 480px) {
    .rchg_layout_grid .rchg_grid_container {
        grid-template-columns: repeat(1, 1fr);
    }
    
    .rchg_layout_masonry .rchg_masonry_container {
        column-count: 1;
    }
    
    .rchg_layout_slider .rchg_slide img {
        max-height: 70vh;
    }
    
    .rchg_layout_thumbnail .rchg_main_image img {
        max-height: 60vh;
    }
    
    .rchg_layout_slider .rchg_slider_arrow {
        width: 28px;
        height: 28px;
        font-size: 14px;
    }
    .rchg_layout_thumbnail .rchg_thumb_arrow {
        width: 35px;
        height: 35px;
        font-size: 20px;
    }
    
    .rchg_layout_slider .rchg_arrow_prev {
        left: 10px;
    }
    
    .rchg_layout_slider .rchg_arrow_next {
        right: 10px;
    }
    
    .rchg_layout_slider .rchg_slider_container {
        width: calc(100vw - 10px);
        border: 2px solid #fff;
    }
}