/* --- Product Catalog Styles --- */
    :root {
        --nano-navy: #0f4c81;
        --nano-navy-dark: #092f52;
        --nano-cyan: #00a8ff;
        --nano-card-border: rgba(15, 76, 129, 0.12);
        --nano-shadow-sm: 0 4px 12px rgba(15, 76, 129, 0.06);
        --nano-shadow-md: 0 10px 30px rgba(15, 76, 129, 0.1);
    }

    .nano-all-products-page {
        padding: 40px 0 70px;
        background: #f8fafc;
        min-height: 80vh;
    }

    .nano-breadcrumb-wrap {
        margin-bottom: 24px;
    }

    .nano-breadcrumb {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 13px;
        color: #64748b;
        margin: 0;
        padding: 0;
        list-style: none;
    }

    .nano-breadcrumb a {
        color: #64748b;
        text-decoration: none;
        transition: color 0.2s;
    }

    .nano-breadcrumb a:hover {
        color: var(--nano-navy);
    }

    .nano-breadcrumb .active {
        color: var(--nano-navy);
        font-weight: 700;
    }

    /* SIDEBAR */
    .nano-sidebar-card {
        background: #ffffff;
        border-radius: 8px;
        border: 1px solid var(--nano-card-border);
        box-shadow: var(--nano-shadow-sm);
        padding: 24px;
        margin-bottom: 24px;
    }

    .nano-sidebar-title {
        font-size: 15px;
        font-weight: 800;
        color: var(--nano-navy);
        text-transform: uppercase;
        letter-spacing: 0.5px;
        margin-bottom: 18px;
        padding-bottom: 10px;
        border-bottom: 2px solid #f0f7ff;
        display: flex;
        align-items: center;
        gap: 8px;
    }

    .nano-category-list {
        list-style: none;
        padding: 0;
        margin: 0;
    }

    .nano-category-item {
        margin-bottom: 6px;
    }

    .nano-category-link {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 9px 14px;
        border-radius: 6px;
        color: #334155;
        font-size: 13.5px;
        font-weight: 600;
        text-decoration: none;
        transition: all 0.2s ease;
    }

    .nano-category-link:hover,
    .nano-category-link.active {
        background-color: #f0f7ff;
        color: var(--nano-navy);
        transform: translateX(3px);
    }

    .nano-search-input {
        border-radius: 6px;
        border: 1px solid #cbd5e1;
        padding: 10px 14px;
        font-size: 13.5px;
        width: 100%;
        margin-bottom: 14px;
        outline: none;
        transition: border-color 0.2s;
    }

    .nano-search-input:focus {
        border-color: var(--nano-navy);
        box-shadow: 0 0 0 3px rgba(15, 76, 129, 0.1);
    }

    .nano-btn-filter {
        background: var(--nano-navy);
        color: #ffffff;
        border: none;
        border-radius: 6px;
        padding: 10px;
        width: 100%;
        font-size: 13.5px;
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: 0.5px;
        transition: all 0.25s ease;
    }

    .nano-btn-filter:hover {
        background: var(--nano-navy-dark);
        color: #ffffff;
    }

    /* MOBILE CATEGORY PILLS BAR */
    .nano-mobile-cat-strip {
        display: none;
    }

    /* DESKTOP PRODUCT CATALOG CARD (BASE) */
    .nano-catalog-product-card {
        background: #ffffff;
        border-radius: 8px;
        border: 1px solid rgba(15, 76, 129, 0.12);
        box-shadow: 0 4px 16px rgba(15, 76, 129, 0.06);
        padding: 20px 16px;
        height: 100%;
        display: flex;
        flex-direction: column;
        transition: all 0.3s ease;
        position: relative;
    }

    .nano-catalog-product-card:hover {
        transform: translateY(-6px);
        box-shadow: 0 12px 30px rgba(15, 76, 129, 0.14);
        border-color: rgba(0, 168, 255, 0.35);
    }

    .nano-catalog-img-wrap {
        height: 190px;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-bottom: 12px;
        position: relative;
        background: #f8fafc;
        border-radius: 8px;
        padding: 10px;
        overflow: hidden;
    }

    .nano-catalog-img-wrap a {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 100%;
        height: 100%;
        text-decoration: none;
    }

    .nano-catalog-img {
        max-height: 170px;
        max-width: 100%;
        width: 100%;
        height: 100%;
        object-fit: contain;
        transition: transform 0.35s ease;
    }

    .nano-catalog-product-card:hover .nano-catalog-img {
        transform: scale(1.06);
    }

    .nano-catalog-product-title {
        font-family: 'Montserrat', sans-serif;
        font-size: 15px;
        font-weight: 700;
        color: var(--nano-navy);
        text-align: center;
        margin-bottom: 8px;
        line-height: 1.35;
        min-height: 40px;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .nano-catalog-product-title a {
        color: var(--nano-navy) !important;
        text-decoration: none !important;
        transition: color 0.2s;
    }

    .nano-catalog-product-title a:hover {
        color: var(--nano-cyan) !important;
    }

    .nano-catalog-price {
        font-size: 17px;
        font-weight: 800;
        color: var(--nano-navy);
        text-align: center;
        margin-bottom: 14px;
        margin-top: auto;
    }

    /* MOBILE BREAKPOINT (<= 767.98px) */
    @media (max-width: 767.98px) {
        .nano-all-products-page {
            padding: 16px 0 80px !important;
        }

        .nano-breadcrumb-wrap {
            margin-bottom: 12px;
        }

        /* HIDE DESKTOP SIDEBAR ON MOBILE */
        .nano-sidebar-desktop-col {
            display: none !important;
        }

        /* SHOW MOBILE CATEGORY PILLS STRIP */
        .nano-mobile-cat-strip {
            display: block;
            margin-bottom: 18px;
        }

        .nano-mobile-search-filter {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
        }

        .nano-mobile-search-filter .nano-search-input {
            margin-bottom: 0;
            padding: 8px 14px;
            font-size: 13px;
            border-radius: 10px;
        }

        .nano-mobile-search-filter .nano-btn-filter {
            width: auto;
            padding: 8px 16px;
            font-size: 12px;
            border-radius: 10px;
            white-space: nowrap;
        }

        .nano-cat-pills-row {
            display: flex;
            gap: 8px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            padding: 4px 2px 8px;
            scrollbar-width: none;
        }

        .nano-cat-pills-row::-webkit-scrollbar {
            display: none;
        }

        .nano-cat-pill {
            display: inline-flex;
            align-items: center;
            padding: 7px 16px;
            background: #ffffff;
            border: 1px solid rgba(15, 76, 129, 0.15);
            border-radius: 10px;
            color: #475569;
            font-size: 12.5px;
            font-weight: 700;
            text-decoration: none !important;
            white-space: nowrap;
            transition: all 0.2s ease;
            box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
            flex-shrink: 0;
        }

        .nano-cat-pill:hover,
        .nano-cat-pill.active {
            background: linear-gradient(135deg, #0f4c81 0%, #00a8ff 100%);
            color: #ffffff !important;
            border-color: #00a8ff;
            box-shadow: 0 4px 12px rgba(0, 168, 255, 0.35);
        }

        /* MOBILE 2-COLUMN CATALOG CARD OVERRIDES */
        .nano-catalog-product-card {
            padding: 12px 10px;
            border-radius: 8px;
        }

        .nano-catalog-img-wrap {
            height: 130px;
            margin-bottom: 8px;
            padding: 6px;
        }

        .nano-catalog-img {
            max-height: 120px;
        }

        .nano-catalog-product-title {
            font-size: 13px;
            min-height: 34px;
            margin-bottom: 6px;
            line-height: 1.3;
        }

        .nano-catalog-price {
            font-size: 14.5px;
            margin-bottom: 8px;
        }
    }

/* --- Product Detail Styles --- */
    :root {
        --nano-navy: #0f4c81;
        --nano-navy-dark: #082949;
        --nano-blue: #0284c7;
        --nano-cyan: #00a8ff;
        --nano-gold: #f59e0b;
        --nano-ice: #f0f7ff;
        --nano-card-border: rgba(15, 76, 129, 0.12);
        --nano-shadow-sm: 0 4px 15px rgba(15, 76, 129, 0.06);
        --nano-shadow-md: 0 12px 35px rgba(15, 76, 129, 0.1);
    }

    .nano-detail-page {
        background: #f8fafc;
        padding: 35px 0 75px;
        min-height: 80vh;
    }

    /* BREADCRUMB */
    .nano-breadcrumb-wrap {
        margin-bottom: 24px;
    }

    .nano-breadcrumb {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 13.5px;
        color: #64748b;
        margin: 0;
        padding: 0;
        list-style: none;
        flex-wrap: wrap;
    }

    .nano-breadcrumb a {
        color: #64748b;
        text-decoration: none;
        transition: color 0.2s;
    }

    .nano-breadcrumb a:hover {
        color: var(--nano-navy);
    }

    .nano-breadcrumb .active {
        color: var(--nano-navy);
        font-weight: 700;
    }

    /* TOP PRODUCT CARD */
    .nano-product-hero-card {
        background: #ffffff;
        border-radius: 10px;
        border: 1px solid var(--nano-card-border);
        box-shadow: var(--nano-shadow-md);
        padding: 35px;
        margin-bottom: 40px;
    }

    /* GALLERY */
    .nano-gallery-wrap {
        position: relative;
    }

    .nano-main-img-box {
        position: relative;
        background: radial-gradient(circle, #ffffff 40%, #f0f7ff 100%);
        border: 1px solid rgba(15, 76, 129, 0.1);
        border-radius: 10px;
        padding: 25px;
        height: 440px;
        display: flex;
        align-items: center;
        justify-content: center;
        overflow: hidden;
        margin-bottom: 16px;
    }

    .nano-main-img {
        max-height: 390px;
        max-width: 100%;
        object-fit: contain;
        transition: transform 0.4s ease;
    }

    .nano-main-img-box:hover .nano-main-img {
        transform: scale(1.06);
    }

    .nano-badge-official {
        position: absolute;
        top: 16px;
        left: 16px;
        z-index: 10;
        pointer-events: none;
        background: linear-gradient(135deg, #0f4c81 0%, #00a8ff 100%);
        color: #ffffff;
        font-size: 11.5px;
        font-weight: 800;
        padding: 5px 12px;
        border-radius: 10px;
        text-transform: uppercase;
        letter-spacing: 0.5px;
        box-shadow: 0 4px 12px rgba(0, 168, 255, 0.35);
        transition: transform 0.3s ease;
    }

    .nano-main-img-box:hover .nano-badge-official {
        transform: translateY(-2px);
    }

    .nano-thumbnails-strip {
        display: flex;
        gap: 12px;
        padding: 10px 6px 12px;
        margin-top: 8px;
        overflow-x: auto;
    }

    .nano-thumb-item {
        width: 80px;
        height: 80px;
        border-radius: 6px;
        border: 2px solid #e2e8f0;
        background: #ffffff;
        padding: 6px;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
        transition: all 0.25s ease;
    }

    .nano-thumb-item:hover,
    .nano-thumb-item.active {
        border-color: var(--nano-navy);
        border-width: 2.5px;
        box-shadow: 0 4px 14px rgba(15, 76, 129, 0.22);
    }

    .nano-thumb-img {
        max-width: 100%;
        max-height: 100%;
        object-fit: contain;
    }

    /* RIGHT INFO */
    .nano-detail-info {
        display: flex;
        flex-direction: column;
        height: 100%;
    }

    .nano-product-detail-title {
        font-family: 'Playfair Display', serif;
        font-size: 30px;
        font-weight: 800;
        color: var(--nano-navy);
        line-height: 1.25;
        margin-bottom: 12px;
    }

    .nano-detail-meta {
        display: flex;
        align-items: center;
        gap: 16px;
        margin-bottom: 20px;
        flex-wrap: wrap;
    }

    .nano-stars-rating {
        display: flex;
        align-items: center;
        gap: 4px;
        color: var(--nano-gold);
        font-size: 14px;
    }

    .nano-meta-divider {
        width: 1px;
        height: 14px;
        background: #cbd5e1;
    }

    .nano-meta-stat {
        font-size: 13.5px;
        color: #64748b;
    }

    .nano-meta-stat strong {
        color: #1e293b;
    }

    /* PRICE BOX */
    .nano-price-banner {
        background: linear-gradient(135deg, #f0f7ff 0%, #e0f2fe 100%);
        border: 1px solid rgba(0, 168, 255, 0.25);
        border-radius: 8px;
        padding: 16px 24px;
        display: flex;
        align-items: center;
        gap: 14px;
        margin-bottom: 22px;
    }

    .nano-current-price {
        font-family: 'Montserrat', sans-serif;
        font-size: 30px;
        font-weight: 800;
        color: var(--nano-navy);
        letter-spacing: -0.5px;
        line-height: 1;
        display: inline-flex;
        align-items: center;
    }

    .nano-old-price {
        font-family: 'Montserrat', sans-serif;
        font-size: 15px;
        font-weight: 600;
        color: #94a3b8;
        text-decoration: line-through;
        line-height: 1;
    }

    .nano-discount-tag {
        background: #ef4444;
        color: #ffffff;
        font-size: 12px;
        font-weight: 800;
        padding: 4px 10px;
        border-radius: 6px;
        line-height: 1;
    }

    .nano-product-intro-text {
        font-size: 14.5px;
        color: #475569;
        line-height: 1.6;
        margin-bottom: 24px;
    }

    /* QUANTITY & ACTIONS */
    .nano-purchase-row {
        display: flex;
        align-items: center;
        gap: 16px;
        margin-bottom: 28px;
        flex-wrap: wrap;
    }

    .nano-qty-control {
        display: flex;
        align-items: center;
        border: 1.5px solid #cbd5e1;
        border-radius: 10px;
        background: #ffffff;
        overflow: hidden;
        width: 120px;
        height: 48px;
    }

    .nano-qty-btn {
        width: 36px;
        height: 100%;
        background: none;
        border: none;
        font-size: 16px;
        font-weight: bold;
        color: #334155;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
        transition: background 0.2s;
    }

    .nano-qty-btn:hover {
        background: #f1f5f9;
        color: var(--nano-navy);
    }

    .nano-qty-input {
        width: 48px;
        height: 100%;
        border: none;
        text-align: center;
        font-family: 'Montserrat', sans-serif;
        font-size: 16px;
        font-weight: 800;
        color: #1e293b;
        outline: none;
        background: transparent;
        padding: 0;
    }

    /* Remove native browser number input spinners */
    .nano-qty-input::-webkit-outer-spin-button,
    .nano-qty-input::-webkit-inner-spin-button {
        -webkit-appearance: none;
        margin: 0;
    }

    .nano-qty-input[type=number] {
        -moz-appearance: textfield;
        appearance: textfield;
    }

    .nano-btn-add-cart {
        flex: 1;
        min-width: 160px;
        height: 48px;
        border-radius: 10px;
        background: #f0f7ff;
        color: var(--nano-navy) !important;
        border: 2px solid var(--nano-navy);
        font-size: 13.5px;
        font-weight: 800;
        letter-spacing: 0.5px;
        text-transform: uppercase;
        box-shadow: 0 4px 12px rgba(15, 76, 129, 0.08);
        cursor: pointer;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        transition: all 0.3s ease;
    }

    .nano-btn-add-cart:hover:not(:disabled) {
        background: var(--nano-navy);
        color: #ffffff !important;
        transform: translateY(-2px);
        box-shadow: 0 8px 20px rgba(15, 76, 129, 0.25);
    }

    .nano-btn-add-cart:disabled {
        opacity: 0.7;
        cursor: not-allowed;
        transform: none;
    }

    .nano-btn-buy-now {
        flex: 1;
        min-width: 160px;
        height: 48px;
        border-radius: 10px;
        background: linear-gradient(135deg, #0f4c81 0%, #00a8ff 100%);
        color: #ffffff !important;
        font-size: 13.5px;
        font-weight: 800;
        letter-spacing: 0.5px;
        text-transform: uppercase;
        border: none;
        box-shadow: 0 6px 18px rgba(0, 168, 255, 0.35);
        cursor: pointer;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        transition: all 0.3s ease;
    }

    .nano-btn-buy-now:hover:not(:disabled) {
        transform: translateY(-2px);
        box-shadow: 0 10px 25px rgba(0, 168, 255, 0.5);
    }

    .nano-btn-buy-now:disabled {
        opacity: 0.7;
        cursor: not-allowed;
        transform: none;
    }

    /* TRUST PERKS IN CARD */
    .nano-guarantee-box {
        background: #f8fafc;
        border: 1px dashed rgba(15, 76, 129, 0.2);
        border-radius: 8px;
        padding: 16px 20px;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 12px;
        margin-top: auto;
    }

    .nano-guarantee-item {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 12.5px;
        color: #334155;
        font-weight: 600;
    }

    .nano-guarantee-item i {
        color: var(--nano-blue);
        font-size: 16px;
        flex-shrink: 0;
    }

    /* DETAIL TABS */
    .nano-tabs-card {
        background: #ffffff;
        border-radius: 10px;
        border: 1px solid var(--nano-card-border);
        box-shadow: var(--nano-shadow-sm);
        padding: 35px;
        margin-bottom: 50px;
    }

    .nano-nav-tabs {
        border-bottom: 2px solid #f0f7ff;
        display: flex;
        gap: 10px;
        margin-bottom: 28px;
    }

    .nano-tab-btn {
        background: none;
        border: none;
        padding: 12px 24px;
        font-size: 15px;
        font-weight: 800;
        color: #64748b;
        text-transform: uppercase;
        letter-spacing: 0.5px;
        border-radius: 6px 12px 0 0;
        cursor: pointer;
        position: relative;
        transition: all 0.25s ease;
    }

    .nano-tab-btn:hover {
        color: var(--nano-navy);
    }

    .nano-tab-btn.active {
        color: var(--nano-navy);
        background: #f0f7ff;
    }

    .nano-tab-btn.active::after {
        content: '';
        position: absolute;
        bottom: -2px;
        left: 0;
        width: 100%;
        height: 3px;
        background: var(--nano-navy);
    }

    .nano-tab-content {
        color: #334155;
        font-size: 15px;
        line-height: 1.8;
    }

    .nano-tab-content h3, 
    .nano-tab-content h4 {
        color: var(--nano-navy);
        font-weight: 700;
        margin-top: 18px;
        margin-bottom: 10px;
    }

    .nano-tab-content ul {
        padding-left: 20px;
        margin-bottom: 16px;
    }

    .nano-tab-content li {
        margin-bottom: 6px;
    }

    /* RELATED PRODUCTS */
    .nano-related-card {
        background: #ffffff;
        border-radius: 8px;
        border: 1px solid var(--nano-card-border);
        box-shadow: var(--nano-shadow-sm);
        padding: 20px;
        height: 100%;
        display: flex;
        flex-direction: column;
        transition: all 0.3s ease;
    }

    .nano-related-card:hover {
        transform: translateY(-6px);
        box-shadow: var(--nano-shadow-md);
        border-color: rgba(0, 168, 255, 0.3);
    }

    .nano-related-img-wrap {
        height: 190px;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-bottom: 12px;
    }

    .nano-related-img {
        max-height: 180px;
        max-width: 100%;
        object-fit: contain;
        transition: transform 0.4s ease;
    }

    .nano-related-card:hover .nano-related-img {
        transform: scale(1.08);
    }

    .nano-related-title {
        font-size: 14.5px;
        font-weight: 700;
        color: var(--nano-navy);
        text-align: center;
        margin-bottom: 8px;
        min-height: 38px;
        line-height: 1.3;
    }

    .nano-related-title a {
        color: inherit;
        text-decoration: none;
    }

    .nano-related-title a:hover {
        color: var(--nano-blue);
    }

    .nano-related-price {
        font-size: 16px;
        font-weight: 800;
        color: var(--nano-navy);
        text-align: center;
        margin-bottom: 12px;
        margin-top: auto;
    }

    .nano-btn-related-detail {
        width: 100%;
        padding: 8px 0;
        text-align: center;
        border: 1.5px solid var(--nano-navy);
        color: var(--nano-navy);
        border-radius: 10px;
        font-size: 12.5px;
        font-weight: 700;
        text-transform: uppercase;
        text-decoration: none !important;
        transition: all 0.2s ease;
    }

    .nano-btn-related-detail:hover {
        background: var(--nano-navy);
        color: #ffffff !important;
    }

    /* STICKY BUY BAR FOR MOBILE */
    .nano-sticky-buy-bar {
        display: none;
    }

    @media (max-width: 991px) {
        .nano-sticky-buy-bar {
            display: flex;
            position: fixed;
            bottom: calc(62px + env(safe-area-inset-bottom, 0px));
            left: 0;
            right: 0;
            width: 100%;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-top: 1px solid rgba(15, 76, 129, 0.12);
            box-shadow: 0 -4px 16px rgba(15, 76, 129, 0.08);
            padding: 8px 14px;
            z-index: 1030;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transform: translateY(120%);
            transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .nano-sticky-buy-bar.visible {
            transform: translateY(0);
        }

        .nano-sticky-prod-info {
            display: flex;
            align-items: center;
            gap: 10px;
            min-width: 0;
            flex: 1;
        }

        .nano-sticky-prod-thumb {
            width: 44px;
            height: 44px;
            border-radius: 6px;
            object-fit: contain;
            border: 1px solid #e2e8f0;
            background: #f8fafc;
            flex-shrink: 0;
            padding: 2px;
        }

        .nano-sticky-prod-text {
            min-width: 0;
        }

        .nano-sticky-prod-title {
            font-size: 12.5px;
            font-weight: 700;
            color: #1e293b;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            line-height: 1.2;
            margin-bottom: 2px;
        }

        .nano-sticky-prod-price {
            font-family: 'Montserrat', sans-serif;
            font-size: 15px;
            font-weight: 800;
            color: #0f4c81;
            line-height: 1.2;
        }

        .nano-sticky-actions {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
        }

        .nano-sticky-btn-add-cart {
            background: #ffffff;
            color: var(--nano-navy) !important;
            border: 1.5px solid var(--nano-navy);
            border-radius: 10px;
            padding: 8px 12px;
            min-height: 44px;
            font-size: 11.5px;
            font-weight: 700;
            letter-spacing: 0.2px;
            text-transform: uppercase;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            cursor: pointer;
            white-space: nowrap;
            transition: all 0.2s ease;
        }

        .nano-sticky-btn-add-cart:hover:not(:disabled) {
            background: var(--nano-navy);
            color: #ffffff !important;
        }

        .nano-sticky-btn-add-cart:disabled {
            opacity: 0.7;
            cursor: not-allowed;
        }

        .nano-sticky-btn-buy {
            background: linear-gradient(135deg, #0f4c81 0%, #00a8ff 100%);
            color: #ffffff !important;
            border: none;
            border-radius: 10px;
            padding: 8px 14px;
            min-height: 44px;
            font-size: 11.5px;
            font-weight: 800;
            letter-spacing: 0.2px;
            text-transform: uppercase;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            cursor: pointer;
            box-shadow: 0 4px 12px rgba(0, 168, 255, 0.4);
            white-space: nowrap;
            transition: all 0.2s ease;
        }

        .nano-sticky-btn-buy:hover:not(:disabled) {
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(0, 168, 255, 0.5);
        }

        .nano-sticky-btn-buy:disabled {
            opacity: 0.7;
            cursor: not-allowed;
        }
    }

    @media (max-width: 768px) {
        .nano-detail-page {
            padding: 18px 0 100px !important;
        }
        .nano-product-hero-card {
            padding: 18px 14px;
            border-radius: 8px;
            margin-bottom: 24px;
        }
        .nano-main-img-box {
            height: min(340px, 80vw);
            border-radius: 8px;
            padding: 16px;
            margin-bottom: 12px;
        }
        .nano-thumbnails-strip {
            gap: 8px;
            padding: 6px 2px 8px;
        }
        .nano-thumb-item {
            width: 64px;
            height: 64px;
            border-radius: 6px;
            padding: 4px;
        }
        .nano-product-detail-title {
            font-size: 22px;
            margin-bottom: 10px;
        }
        .nano-detail-meta {
            gap: 10px;
            margin-bottom: 14px;
            font-size: 12px;
        }
        .nano-price-banner {
            padding: 12px 16px;
            gap: 10px;
            margin-bottom: 18px;
            border-radius: 8px;
        }
        .nano-current-price {
            font-size: 24px;
        }
        .nano-old-price {
            font-size: 13.5px;
        }
        .nano-purchase-row {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 20px;
            width: 100%;
        }
        .nano-qty-control {
            width: 100px;
            height: 44px;
            flex-shrink: 0;
        }
        .nano-btn-add-cart,
        .nano-btn-buy-now {
            flex: 1;
            height: 44px;
            font-size: 11.5px;
            min-width: 105px;
            padding: 0 8px;
            white-space: nowrap;
        }
        .nano-guarantee-box {
            grid-template-columns: 1fr 1fr;
            gap: 10px;
            padding: 14px;
            border-radius: 8px;
            background: #f0f7ff;
            border: 1px solid rgba(0, 168, 255, 0.2);
        }
        .nano-guarantee-item {
            font-size: 11.5px;
            gap: 6px;
        }
        .nano-tabs-card {
            padding: 20px 16px;
            border-radius: 8px;
            margin-bottom: 30px;
        }
        .nano-nav-tabs {
            overflow-x: auto;
            flex-wrap: nowrap;
            -webkit-overflow-scrolling: touch;
            gap: 6px;
            padding-bottom: 6px;
            scrollbar-width: none;
        }
        .nano-nav-tabs::-webkit-scrollbar {
            display: none;
        }
        .nano-tab-btn {
            padding: 8px 16px;
            font-size: 12.5px;
            white-space: nowrap;
            border-radius: 10px;
        }
        .nano-related-card {
            padding: 14px 10px;
            border-radius: 8px;
        }
        .nano-related-img-wrap {
            height: 135px;
            margin-bottom: 8px;
        }
        .nano-related-title {
            font-size: 13px;
            min-height: 34px;
            margin-bottom: 6px;
            line-height: 1.3;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .nano-related-price {
            font-size: 14.5px;
            margin-bottom: 8px;
        }
        .nano-btn-related-detail {
            padding: 6px 0;
            font-size: 11.5px;
            border-radius: 8px;
        }
    }

    /* EMPTY SEARCH / FILTER STATE */
    .nano-empty-search-box {
        background: #ffffff;
        border: 1px dashed rgba(15, 76, 129, 0.25);
        border-radius: 12px;
        padding: 50px 24px;
        text-align: center;
        box-shadow: 0 4px 16px rgba(15, 76, 129, 0.05);
        margin: 10px 0 30px;
    }

    .nano-empty-icon {
        width: 72px;
        height: 72px;
        margin: 0 auto 18px;
        border-radius: 50%;
        background: linear-gradient(135deg, #f0f7ff 0%, #e0f2fe 100%);
        color: #0284c7;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 32px;
        border: 1px solid rgba(2, 132, 199, 0.15);
    }

    .nano-empty-title {
        font-family: 'Playfair Display', serif;
        font-size: 22px;
        font-weight: 700;
        color: #0f4c81;
        margin-bottom: 8px;
    }

    .nano-empty-desc {
        color: #64748b;
        font-size: 14.5px;
        max-width: 520px;
        margin: 0 auto 24px;
        line-height: 1.6;
    }

    .nano-empty-desc strong {
        color: #0f4c81;
    }

    .nano-btn-empty-reset {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: linear-gradient(135deg, #0f4c81 0%, #00a8ff 100%);
        color: #ffffff !important;
        padding: 10px 24px;
        border-radius: 20px;
        font-size: 13.5px;
        font-weight: 600;
        text-decoration: none !important;
        box-shadow: 0 4px 14px rgba(0, 168, 255, 0.3);
        transition: all 0.25s ease;
    }

    .nano-btn-empty-reset:hover {
        transform: translateY(-2px);
        box-shadow: 0 6px 18px rgba(0, 168, 255, 0.4);
    }