/* ===== PRODUCT DETAILS STYLES - MATCHING HEADER GREEN THEME ===== */

/* Import header color variables */
:root {
    /* Sử dụng lại palette xanh lá từ header */
    --primary-green: #28a745;
    --primary-green-light: #34ce57;
    --primary-green-dark: #1e7e34;
    --secondary-green: #20c997;
    --accent-green: #17a2b8;
    --light-green-bg: #d4edda;
    --very-light-green: #f8f9fa;
    /* Extended colors for product details */
    --product-card-bg: #ffffff;
    --border-light: #e3f2e6;
    --hover-green: rgba(40, 167, 69, 0.1);
    --shadow-green: rgba(40, 167, 69, 0.15);
    --text-green: #155724;
    --text-dark: #2c3e50;
    --text-muted: #6c757d;
    /* Enhanced shadows and effects */
    --card-shadow: 0 4px 12px rgba(40, 167, 69, 0.08);
    --card-shadow-hover: 0 8px 25px rgba(40, 167, 69, 0.15);
    --filter-shadow: 0 2px 15px rgba(40, 167, 69, 0.1);
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius-lg: 12px;
    --border-radius-xl: 16px;
}

/* ===== MAIN CONTAINER ===== */
.product-detail-page {
    background: linear-gradient(135deg, #fafffe 0%, #f0fdf4 100%);
    min-height: calc(100vh - 200px);
    padding-top: 2rem;
    padding-bottom: 3rem;
}

/* ===== BREADCRUMB ENHANCEMENT ===== */
.breadcrumb {
    background: linear-gradient(135deg, var(--light-green-bg), #e8f8ea);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-lg);
    padding: 1rem 1.5rem;
    margin-bottom: 2rem;
    box-shadow: var(--filter-shadow);
    backdrop-filter: blur(10px);
}

.breadcrumb-item a {
    color: var(--primary-green);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-smooth);
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
}

    .breadcrumb-item a:hover {
        color: var(--primary-green-dark);
        background: rgba(40, 167, 69, 0.1);
        transform: translateY(-1px);
    }

.breadcrumb-item.active {
    color: var(--text-green);
    font-weight: 600;
}

.breadcrumb-item + .breadcrumb-item::before {
    color: var(--primary-green);
    font-weight: bold;
}

/* ===== PRODUCT GALLERY ===== */
.product-gallery {
    background: var(--product-card-bg);
    border-radius: var(--border-radius-xl);
    padding: 2rem;
    box-shadow: var(--card-shadow);
    border: 1px solid var(--border-light);
    position: sticky;
    top: 2rem;
}

.main-image-container {
    position: relative;
    overflow: hidden;
    border-radius: var(--border-radius-lg);
    background: var(--very-light-green);
    border: 2px solid var(--border-light);
    transition: var(--transition-smooth);
}

    .main-image-container:hover {
        border-color: var(--primary-green);
        box-shadow: 0 8px 25px rgba(40, 167, 69, 0.15);
    }

#main-product-image {
    width: 100%;
    height: 400px;
    object-fit: cover;
    transition: var(--transition-smooth);
    border-radius: var(--border-radius-lg);
}

    #main-product-image:hover {
        transform: scale(1.05);
    }

/* ===== PRODUCT THUMBNAILS ===== */
.product-thumbnails {
    margin-top: 1rem;
    padding: 1rem 0;
}

.thumbnail-item {
    cursor: pointer;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    border: 2px solid var(--border-light);
    transition: var(--transition-smooth);
    background: var(--very-light-green);
    position: relative;
}

    .thumbnail-item::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--primary-green);
        opacity: 0;
        transition: var(--transition-smooth);
        z-index: 1;
    }

    .thumbnail-item:hover::before {
        opacity: 0.1;
    }

    .thumbnail-item.active {
        border-color: var(--primary-green);
        box-shadow: 0 0 0 3px rgba(40, 167, 69, 0.2);
    }

        .thumbnail-item.active::before {
            opacity: 0.15;
        }

    .thumbnail-item img {
        width: 100%;
        height: 80px;
        object-fit: cover;
        transition: var(--transition-smooth);
    }

    .thumbnail-item:hover img {
        transform: scale(1.1);
    }

/* ===== SWIPER CUSTOMIZATION ===== */
.swiper-button-next,
.swiper-button-prev {
    width: 40px;
    height: 40px;
    background: var(--primary-green);
    border-radius: 50%;
    color: white;
    font-size: 16px;
    margin-top: -20px;
    transition: var(--transition-smooth);
    box-shadow: 0 4px 12px rgba(40, 167, 69, 0.3);
}

    .swiper-button-next:hover,
    .swiper-button-prev:hover {
        background: var(--primary-green-dark);
        transform: scale(1.1);
        box-shadow: 0 6px 20px rgba(40, 167, 69, 0.4);
    }

    .swiper-button-next::after,
    .swiper-button-prev::after {
        font-size: 14px;
        font-weight: bold;
    }

/* ===== PRODUCT INFO SECTION ===== */
.product-info {
    background: var(--product-card-bg);
    border-radius: var(--border-radius-xl);
    padding: 2.5rem;
    box-shadow: var(--card-shadow);
    border: 1px solid var(--border-light);
    position: relative;
}

    .product-info::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 4px;
        background: linear-gradient(90deg, var(--primary-green), var(--secondary-green));
        border-radius: var(--border-radius-xl) var(--border-radius-xl) 0 0;
    }

.product-condition {
    background: linear-gradient(45deg, var(--primary-green), var(--secondary-green));
    color: white;
    font-weight: 700;
    font-size: 0.875rem;
    padding: 0.5rem 1.25rem;
    border-radius: 20px;
    display: inline-block;
    box-shadow: 0 4px 12px rgba(40, 167, 69, 0.3);
    border: 1px solid rgba(255,255,255,0.2);
}

.product-title {
    color: var(--text-green);
    font-weight: 800;
    font-size: 2.25rem;
    line-height: 1.3;
    margin: 1.5rem 0;
    letter-spacing: -0.5px;
}

.shop-info {
    background: var(--light-green-bg);
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-light);
    margin-bottom: 2rem;
}

.shop-link {
    color: var(--primary-green-dark);
    text-decoration: none;
    font-weight: 700;
    font-size: 1.1rem;
    transition: var(--transition-smooth);
    display: inline-flex;
    align-items: center;
}

    .shop-link:hover {
        color: var(--primary-green);
        transform: translateX(4px);
    }

    .shop-link i {
        color: var(--secondary-green);
        margin-right: 0.75rem;
        font-size: 1.2rem;
    }

/* ===== PRODUCT PRICE ===== */
.product-price {
    background: linear-gradient(135deg, #f8fff9, #e8f5ea);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    border: 2px solid var(--light-green-bg);
    text-align: center;
    position: relative;
    overflow: hidden;
}

    .product-price::before {
        content: '';
        position: absolute;
        top: -50%;
        left: -50%;
        width: 200%;
        height: 200%;
        background: radial-gradient(circle, rgba(40, 167, 69, 0.05) 0%, transparent 70%);
        animation: priceGlow 3s ease-in-out infinite;
    }

@keyframes priceGlow {
    0%, 100% {
        opacity: 0.5;
        transform: scale(1);
    }

    50% {
        opacity: 1;
        transform: scale(1.1);
    }
}

.current-price {
    font-size: 3rem;
    font-weight: 900;
    color: var(--primary-green-dark);
    text-shadow: 2px 2px 4px rgba(40, 167, 69, 0.1);
    position: relative;
    z-index: 2;
}

/* ===== PRODUCT SPECS ===== */
.product-specs {
    background: var(--very-light-green);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    border: 1px solid var(--border-light);
}

.spec-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-light);
    transition: var(--transition-smooth);
}

    .spec-item:last-child {
        border-bottom: none;
    }

    .spec-item:hover {
        background: rgba(40, 167, 69, 0.05);
        margin: 0 -1rem;
        padding-left: 1rem;
        padding-right: 1rem;
        border-radius: 8px;
    }

.spec-label {
    font-weight: 700;
    color: var(--text-green);
    font-size: 1rem;
    flex: 0 0 40%;
    display: flex;
    align-items: center;
}

    .spec-label::before {
        content: '•';
        color: var(--primary-green);
        font-weight: 900;
        margin-right: 0.5rem;
        font-size: 1.2rem;
    }

.spec-value {
    color: var(--primary-green-dark);
    font-weight: 600;
    text-align: right;
    flex: 1;
}

/* ===== PRODUCT ACTIONS ===== */
.product-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn-outline-primary {
    background: linear-gradient(45deg, transparent, rgba(40, 167, 69, 0.05));
    border: 2px solid var(--primary-green);
    color: var(--primary-green-dark);
    padding: 1rem 2.5rem;
    border-radius: var(--border-radius-lg);
    font-weight: 700;
    font-size: 1.1rem;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
    flex: 1;
    min-width: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}

    .btn-outline-primary::before {
        content: '';
        position: absolute;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100%;
        background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
        transition: left 0.5s;
    }

    .btn-outline-primary:hover {
        background: linear-gradient(45deg, var(--primary-green), var(--secondary-green));
        border-color: var(--primary-green);
        color: white;
        transform: translateY(-3px);
        box-shadow: 0 8px 25px rgba(40, 167, 69, 0.4);
    }

        .btn-outline-primary:hover::before {
            left: 100%;
        }

    .btn-outline-primary:active {
        transform: translateY(-1px);
    }

    .btn-outline-primary i {
        font-size: 1.2rem;
        transition: var(--transition-smooth);
    }

    .btn-outline-primary:hover i {
        transform: scale(1.1);
    }

/* ===== TABS SECTION ===== */
.nav-tabs {
    border-bottom: 3px solid var(--light-green-bg);
    margin-bottom: 2rem;
}

    .nav-tabs .nav-link {
        border: none;
        border-bottom: 3px solid transparent;
        color: var(--text-muted);
        font-weight: 700;
        font-size: 1.1rem;
        padding: 1rem 2rem;
        transition: var(--transition-smooth);
        position: relative;
        background: transparent;
    }

        .nav-tabs .nav-link:hover {
            color: var(--primary-green);
            background: var(--hover-green);
            border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
        }

        .nav-tabs .nav-link.active {
            color: var(--primary-green-dark);
            background: linear-gradient(135deg, var(--light-green-bg), #e8f8ea);
            border-bottom-color: var(--primary-green);
            border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
        }

.tab-content {
    background: var(--product-card-bg);
    border-radius: var(--border-radius-lg);
    padding: 2.5rem;
    box-shadow: var(--card-shadow);
    border: 1px solid var(--border-light);
}

.tab-pane h4,
.tab-pane h5 {
    color: var(--text-green);
    font-weight: 800;
    margin-bottom: 1.5rem;
}

.product-description {
    color: var(--text-dark);
    line-height: 1.8;
    font-size: 1.05rem;
    margin-bottom: 2rem;
}

    .product-description p {
        margin-bottom: 1.5rem;
    }

/* ===== SHOP INFO TAB ===== */
.tab-pane img {
    border-radius: var(--border-radius-lg);
    border: 3px solid var(--border-light);
    transition: var(--transition-smooth);
}

    .tab-pane img:hover {
        border-color: var(--primary-green);
        transform: scale(1.02);
        box-shadow: 0 8px 25px rgba(40, 167, 69, 0.15);
    }

.tab-pane .btn-outline-primary {
    margin-top: 1rem;
    min-width: auto;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
}

/* ===== RELATED PRODUCTS ===== */
.related-products {
    margin-top: 4rem;
    padding: 3rem 2rem;
    background: linear-gradient(135deg, #f8fff9, #e8f5ea);
    border-radius: var(--border-radius-xl);
    border: 1px solid var(--border-light);
}

.section-title {
    color: var(--text-green);
    font-weight: 800;
    font-size: 2rem;
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
}

    .section-title::after {
        content: '';
        position: absolute;
        bottom: -0.5rem;
        left: 50%;
        transform: translateX(-50%);
        width: 80px;
        height: 4px;
        background: linear-gradient(90deg, var(--primary-green), var(--secondary-green));
        border-radius: 2px;
    }

.related-products .product-card {
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-xl);
    transition: var(--transition-smooth);
    background: var(--product-card-bg);
    box-shadow: var(--card-shadow);
    overflow: hidden;
    position: relative;
}

    .related-products .product-card::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 3px;
        background: linear-gradient(90deg, var(--primary-green), var(--secondary-green));
        transform: scaleX(0);
        transform-origin: left;
        transition: transform 0.3s ease;
    }

    .related-products .product-card:hover::before {
        transform: scaleX(1);
    }

    .related-products .product-card:hover {
        transform: translateY(-8px);
        box-shadow: var(--card-shadow-hover);
        border-color: var(--primary-green);
    }

.related-products .card-img-top {
    height: 200px;
    object-fit: cover;
    transition: var(--transition-smooth);
}

.related-products .product-card:hover .card-img-top {
    transform: scale(1.05);
}

.related-products .card-body {
    padding: 1.5rem;
}

.related-products .card-title {
    color: var(--text-green);
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 1rem;
    line-height: 1.4;
}

.related-products .shop-name {
    color: var(--primary-green);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
}

    .related-products .shop-name i {
        color: var(--secondary-green);
        margin-right: 0.5rem;
    }

.related-products .price {
    color: var(--primary-green-dark);
    font-size: 1.25rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
}

.related-products .btn {
    border-radius: var(--border-radius-lg);
    font-weight: 600;
    transition: var(--transition-smooth);
}

.related-products .btn-outline-primary {
    min-width: auto;
    flex: none;
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

.related-products .btn-primary {
    background: linear-gradient(45deg, var(--secondary-green), var(--accent-green));
    border: none;
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

    .related-products .btn-primary:hover {
        background: linear-gradient(45deg, var(--accent-green), var(--secondary-green));
        transform: translateY(-2px);
        box-shadow: 0 4px 15px rgba(32, 201, 151, 0.3);
    }

/* ===== FADE-IN ANIMATIONS ===== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

    .fade-in.visible {
        opacity: 1;
        transform: translateY(0);
    }

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 991.98px) {
    .product-gallery {
        position: static;
        margin-bottom: 2rem;
    }

    .product-title {
        font-size: 1.75rem;
    }

    .current-price {
        font-size: 2.25rem;
    }

    .product-actions {
        flex-direction: column;
    }

    .btn-outline-primary {
        min-width: auto;
    }
}

@media (max-width: 767.98px) {
    .product-detail-page {
        padding-left: 0.75rem;
        padding-right: 0.75rem;
    }

    .product-gallery,
    .product-info,
    .tab-content {
        padding: 1.5rem;
    }

    .product-title {
        font-size: 1.5rem;
    }

    .current-price {
        font-size: 2rem;
    }

    .related-products {
        padding: 2rem 1rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    #main-product-image {
        height: 300px;
    }

    .thumbnail-item img {
        height: 60px;
    }

    .spec-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .spec-value {
        text-align: left;
    }
}

@media (max-width: 575.98px) {
    .breadcrumb {
        padding: 0.75rem 1rem;
    }

    .product-specs {
        padding: 1.5rem;
    }

    .nav-tabs .nav-link {
        padding: 0.75rem 1rem;
        font-size: 1rem;
    }

    .btn-outline-primary {
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
    }

    .related-products .card-body {
        padding: 1rem;
    }

    .related-products .card-img-top {
        height: 180px;
    }
}

/* ===== ACCESSIBILITY IMPROVEMENTS ===== */
.nav-link:focus,
.btn:focus,
.thumbnail-item:focus {
    outline: 3px solid rgba(40, 167, 69, 0.3);
    outline-offset: 2px;
}

.product-card:focus-within {
    outline: 3px solid rgba(40, 167, 69, 0.3);
    outline-offset: 2px;
}

/* ===== PRINT STYLES ===== */
@media print {
    .product-detail-page {
        background: white;
    }

    .related-products,
    .navbar,
    .breadcrumb {
        display: none;
    }

    .product-gallery,
    .product-info {
        box-shadow: none;
        border: 1px solid #ccc;
    }
}