/* 
 * HealthGreen Design System - Catalog & Category Library
 * Dành cho Category, Margin, Manufacturer, Vendor, Search
 */

/* =========================================================================
   1. LAYOUT (SIDEBAR & MAIN BOX)
   ========================================================================= */
.nsk-catalog-page {
    /* Mở rộng wrapper cho catalog để hỗ trợ sidebar (nếu 2 columns) */
    display: flex;
    flex-wrap: wrap;
    gap: var(--nsk-space-8);
}

.nsk-catalog-main {
    flex: 1;
    min-width: 0;
}

/* =========================================================================
   2. PAGE HEADER 
   ========================================================================= */
.nsk-catalog-header {
    margin-bottom: var(--nsk-space-6);
    padding-bottom: var(--nsk-space-4);
    border-bottom: 2px solid var(--nsk-color-border-light);
}

.nsk-catalog-header h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--nsk-color-primary-dark);
    margin: 0;
}

.nsk-catalog-desc {
    margin-top: var(--nsk-space-4);
    font-size: 14px;
    line-height: 1.6;
    color: var(--nsk-color-text-main);
}

/* =========================================================================
   3. PRODUCT GRID (Tái sử dụng cho trang Danh sách Sản phẩm)
   ========================================================================= */
.nsk-product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--nsk-space-5);
    margin-bottom: var(--nsk-space-6);
}

.nsk-product-grid__item {
    display: flex;
    min-width: 0;       /* prevent grid blowout */
    overflow: hidden;   /* contain children */
}

.nsk-product-grid__item > * {
    width: 100%;
    min-width: 0;
    max-width: 100%;
}

/* Homepage section wrappers */
.nsk-homepage-products,
.nsk-homepage-bestsellers {
    margin-bottom: var(--nsk-space-8);
    overflow: hidden;
}

@media (max-width: 768px) {
    .nsk-product-grid {
        grid-template-columns: repeat(2, 1fr);
        overflow: hidden;
        gap: var(--nsk-space-4);
    }
}

/* Dành cho dạng danh sách (list mode) nếu có */
.nsk-product-list {
    display: flex;
    flex-direction: column;
    gap: var(--nsk-space-4);
}

/* =========================================================================
   4. ENTITY GRID (Dành cho ManufacturerAll, VendorAll, ProductTagsAll)
   ========================================================================= */
.nsk-entity-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: var(--nsk-space-5);
    margin-bottom: var(--nsk-space-6);
}

.nsk-entity-card {
    background: var(--nsk-color-surface-card);
    border: 1px solid var(--nsk-color-border-light);
    border-radius: var(--nsk-radius-md);
    padding: var(--nsk-space-4);
    text-align: center;
    transition: all 0.2s ease-in-out;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.nsk-entity-card:hover {
    border-color: var(--nsk-color-primary);
    box-shadow: var(--nsk-shadow-md);
    transform: translateY(-2px);
}

.nsk-entity-card .picture {
    margin-bottom: var(--nsk-space-3);
}

.nsk-entity-card .picture img {
    max-width: 100%;
    height: auto;
    object-fit: contain;
}

.nsk-entity-card .title {
    font-size: 16px;
    font-weight: 600;
    color: var(--nsk-color-text-main);
    text-decoration: none;
}

/* =========================================================================
   5. SEARCH FORM (Vùng tìm kiếm trong trang Search)
   ========================================================================= */
.nsk-search-form {
    background: var(--nsk-color-surface-main);
    border: 1px solid var(--nsk-color-border-light);
    border-radius: var(--nsk-radius-md);
    padding: var(--nsk-space-6);
    margin-bottom: var(--nsk-space-6);
    box-shadow: var(--nsk-shadow-sm);
}

.nsk-search-form-row {
    display: flex;
    flex-wrap: wrap;
    gap: var(--nsk-space-4);
    margin-bottom: var(--nsk-space-4);
}

.nsk-search-form-row .nsk-input {
    flex: 1;
    min-width: 200px;
}

.nsk-search-advanced {
    margin-top: var(--nsk-space-4);
    padding-top: var(--nsk-space-4);
    border-top: 1px dashed var(--nsk-color-border-light);
}

.nsk-search-no-results {
    color: var(--nsk-color-error);
    font-weight: 600;
    margin-bottom: var(--nsk-space-5);
    text-align: center;
    padding: var(--nsk-space-6);
    background: #fef2f2; /* tailwind red-50 */
    border-radius: var(--nsk-radius-md);
}

/* =========================================================================
   6. BỘ LỌC VÀ OPTION BAR (Sort, PageSize)
   ========================================================================= */
.nsk-options-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    background: #f8fafc; /* tailwind slate-50 */
    border: 1px solid var(--nsk-color-border-light);
    border-radius: var(--nsk-radius-sm);
    padding: var(--nsk-space-3) var(--nsk-space-4);
    margin-bottom: var(--nsk-space-6);
    gap: var(--nsk-space-4);
}

.nsk-options-group {
    display: flex;
    align-items: center;
    gap: var(--nsk-space-3);
    font-size: 14px;
    color: var(--nsk-color-text-minor);
}

.nsk-options-group select {
    padding: 6px 10px;
    border: 1px solid var(--nsk-color-border-strong);
    border-radius: var(--nsk-radius-xs);
    background-color: var(--nsk-color-surface-main);
    color: var(--nsk-color-text-main);
    outline: none;
    cursor: pointer;
}

@media (max-width: 576px) {
    .nsk-options-bar {
        flex-direction: column;
        align-items: flex-start;
    }
}