/* ── BREADCRUMBS ── */
.breadcrumbs {
    background: #f8fafc;
    padding: 16px 0;
    border-bottom: 1px solid var(--border);
    margin-top: 100px;
    /* Offset for fixed header */
}

.breadcrumbs .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    font-size: 13px;
    color: var(--text-3);
}

.breadcrumbs a {
    color: var(--text-2);
    text-decoration: none;
    transition: color 0.3s;
}

.breadcrumbs a:hover {
    color: var(--accent-cyan);
}

.breadcrumbs .sep {
    margin: 0 8px;
    color: var(--border);
}

.breadcrumbs .current {
    color: var(--text-1);
    font-weight: 600;
}

/* ── PRODUCT HERO ── */
.product-hero {
    padding: 60px 0;
    background: #fff;
}

.hero-grid {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.product-gallery {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.main-image {
    width: 100%;
    aspect-ratio: 1/1;
    background: #f1f5f9;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border: 1px solid var(--border);
    cursor: zoom-in;
}

.main-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.main-image:hover img {
    transform: scale(1.4);
}

.thumbnail-list {
    display: flex;
    gap: 16px;
}

.thumb {
    width: 80px;
    height: 80px;
    border-radius: 8px;
    background: #f1f5f9;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid transparent;
    cursor: pointer;
    transition: border-color 0.3s;
}

.thumb.active,
.thumb:hover {
    border-color: var(--accent-cyan);
}

.thumb img {
    max-width: 70%;
    max-height: 70%;
}

.product-info {
    display: flex;
    flex-direction: column;
}

.product-badges {
    display: flex;
    gap: 10px;
    margin-bottom: 16px;
}

.badge {
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.1em;
}

.badge-hot {
    background: rgba(234, 88, 12, 0.1);
    color: #ea580c;
}

.badge-cert {
    background: rgba(14, 165, 233, 0.1);
    color: #0ea5e9;
}

.product-title {
    font-size: 32px;
    font-family: var(--font-title);
    color: var(--text-1);
    margin-bottom: 12px;
    line-height: 1.2;
}

.product-sku {
    font-size: 13px;
    color: var(--text-3);
    margin-bottom: 24px;
}

.in-stock {
    color: #16a34a;
    font-weight: 600;
}

.product-price {
    font-size: 36px;
    font-weight: 700;
    color: var(--accent-orange);
    margin-bottom: 24px;
    font-family: var(--font-title);
}

.product-price .unit {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-3);
}

.product-desc {
    font-size: 15px;
    line-height: 1.7;
    color: var(--text-2);
    margin-bottom: 32px;
}

.quick-specs {
    background: #f8fafc;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 32px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.spec-item {
    /* display: flex; */
    justify-content: space-between;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    padding-bottom: 8px;
}

.spec-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.spec-lbl {
    color: var(--text-3);
    font-size: 14px;
}

.spec-val {
    font-weight: 600;
    color: var(--text-1);
    font-size: 14px;
}

.purchase-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 32px;
    align-items: center;
}

.qty-selector {
    display: flex;
    align-items: center;
    border: 1px solid var(--border);
    border-radius: 8px;
    height: 48px;
    overflow: hidden;
}

.qty-btn {
    width: 40px;
    height: 100%;
    background: #f8fafc;
    border: none;
    font-size: 18px;
    cursor: pointer;
    color: var(--text-2);
    transition: background 0.3s;
}

.qty-btn:hover {
    background: #e2e8f0;
}

#qtyInput {
    width: 50px;
    height: 100%;
    border: none;
    text-align: center;
    font-weight: 600;
    color: var(--text-1);
    font-family: var(--font-body);
    outline: none;
}

#qtyInput::-webkit-inner-spin-button {
    display: none;
}

.qty-unit {
    padding: 0 12px;
    font-weight: 600;
    color: var(--text-2);
    background: #f8fafc;
    height: 100%;
    display: flex;
    align-items: center;
    border-left: 1px solid var(--border);
}

.btn-primary {
    background: var(--accent-cyan);
    color: #fff;
    border: none;
    height: 48px;
    padding: 0 32px;
    border-radius: 8px;
    font-family: var(--font-title);
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: background 0.3s;
    white-space: nowrap;
}

.btn-primary:hover {
    background: #0284c7;
}

.btn-ghost {
    background: transparent;
    color: var(--text-1);
    border: 1px solid var(--text-1);
    height: 48px;
    padding: 0 24px;
    border-radius: 8px;
    font-family: var(--font-title);
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s;
    white-space: nowrap;
}

.btn-ghost:hover {
    background: var(--text-1);
    color: #fff;
}

.delivery-info {
    display: flex;
    align-items: center;
    gap: 12px;
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    padding: 16px;
    border-radius: 8px;
    color: #166534;
    font-size: 14px;
    font-weight: 500;
}

/* ── TABS ── */
.product-tabs-section {
    background: #fff;
    padding: 40px 0 80px;
    border-bottom: 1px solid var(--border);
}

.product-tabs-section .container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 24px;
}

.tabs-header {
    display: flex;
    gap: 32px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 40px;
    overflow-x: auto;
}

.tab-btn {
    background: none;
    border: none;
    padding: 16px 0;
    font-family: var(--font-title);
    font-size: 16px;
    font-weight: 600;
    color: var(--text-3);
    cursor: pointer;
    position: relative;
    white-space: nowrap;
}

.tab-btn::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--accent-cyan);
    transform: scaleX(0);
    transition: transform 0.3s;
}

.tab-btn.active {
    color: var(--accent-cyan);
}

.tab-btn.active::after {
    transform: scaleX(1);
}

.tab-content {
    display: none;
    animation: fadeIn 0.5s ease;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.tab-content h3 {
    font-family: var(--font-title);
    font-size: 20px;
    margin-bottom: 16px;
    color: var(--text-1);
}

.tab-content p {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-2);
    margin-bottom: 16px;
}

.tab-content ul {
    list-style: none;
    padding: 0;
}

.tab-content li {
    position: relative;
    padding-left: 24px;
    margin-bottom: 12px;
    font-size: 15px;
    color: var(--text-2);
}

.tab-content li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-cyan);
    font-weight: bold;
}

.specs-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 24px;
}

.specs-table th,
.specs-table td {
    padding: 16px;
    border: 1px solid var(--border);
    text-align: left;
    font-size: 15px;
}

.specs-table th {
    background: #f8fafc;
    font-weight: 600;
    color: var(--text-1);
}

/* ── PRODUCT REVIEWS ── */
.product-reviews {
    padding: 80px 0;
    background: #fff;
    border-top: 1px solid var(--border);
}

.product-reviews .container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 24px;
}

.reviews-header {
    display: flex;
    gap: 40px;
    align-items: center;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.reviews-summary-score {
    text-align: center;
    min-width: 150px;
}

.reviews-summary-score h3 {
    font-size: 64px;
    font-weight: 700;
    font-family: var(--font-title);
    color: var(--text-1);
    line-height: 1;
    margin-bottom: 8px;
}

.reviews-stars {
    color: #fbbf24;
    font-size: 20px;
    margin-bottom: 8px;
}

.reviews-summary-bars {
    flex: 1;
    min-width: 300px;
}

.review-bar-item {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 8px;
}

.review-bar-label {
    width: 40px;
    font-size: 14px;
    color: var(--text-2);
    font-weight: 500;
}

.review-bar-track {
    flex: 1;
    height: 8px;
    background: #f1f5f9;
    border-radius: 4px;
    overflow: hidden;
}

.review-bar-fill {
    height: 100%;
    background: #fbbf24;
    border-radius: 4px;
}

.review-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.review-card {
    padding: 24px;
    background: #f8fafc;
    border: 1px solid var(--border);
    border-radius: 12px;
}

.review-card-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 12px;
}

.review-user {
    display: flex;
    align-items: center;
    gap: 12px;
}

.review-avatar {
    width: 40px;
    height: 40px;
    background: #e2e8f0;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: var(--text-2);
}

.review-user-info h4 {
    font-size: 15px;
    color: var(--text-1);
    margin-bottom: 4px;
}

.review-date {
    font-size: 13px;
    color: var(--text-3);
}

.review-content {
    font-size: 15px;
    color: var(--text-2);
    line-height: 1.6;
}

/* ── PRODUCT SLIDER (RELATED & HOT) ── */
.product-slider-section {
    padding: 80px 0;
    background: #f8fafc;
}

.slider-wrapper {
    position: relative;
}

.slider-nav-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: #fff;
    border: 1px solid var(--border);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    font-size: 20px;
    color: var(--text-1);
    transition: all 0.3s ease;
    outline: none;
}

.slider-nav-btn:hover {
    background: #0f172a;
    color: #fff;
    border-color: #0f172a;
    transform: translateY(-50%) scale(1.05);
}

.slider-nav-btn.prev {
    left: -22px;
}

.slider-nav-btn.next {
    right: -22px;
}

.product-slider-section.hot-products {
    background: #ffffff;
    border-bottom: 1px solid var(--border);
}

.product-slider-section .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.slider-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 40px;
}

/* ── RELATED PRODUCTS GRID & PAGINATION ── */
.related-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.related-pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 40px;
}

.related-pagination .pag-btn {
    min-width: 40px;
    height: 40px;
    border-radius: 8px;
    background: #fff;
    border: 1px solid var(--border);
    font-size: 15px;
    font-weight: 600;
    color: var(--text-2);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s;
}

.related-pagination .pag-btn:hover:not(:disabled) {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
}

.related-pagination .pag-btn.active {
    background: var(--accent-cyan);
    border-color: var(--accent-cyan);
    color: #fff;
}

.related-pagination .pag-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background: #f8fafc;
}

.slider-container {
    display: flex;
    gap: 24px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    padding-bottom: 32px;
    /* space for scrollbar */
    scrollbar-width: none;
    /* Firefox */
}

.slider-container::-webkit-scrollbar {
    display: none;
    /* Chrome/Safari */
}

/* Optional custom scrollbar if visible */
.slider-container.show-scrollbar {
    scrollbar-width: thin;
    scrollbar-color: #cbd5e1 transparent;
}

.slider-container.show-scrollbar::-webkit-scrollbar {
    display: block;
    height: 6px;
}

.slider-container.show-scrollbar::-webkit-scrollbar-thumb {
    background-color: #cbd5e1;
    border-radius: 10px;
}

.slider-item {
    scroll-snap-align: start;
    flex: 0 0 280px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
    text-align: center;
    text-decoration: none;
    color: inherit;
    transition: transform 0.3s, box-shadow 0.3s;
    position: relative;
    display: flex;
    flex-direction: column;
}

.slider-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
    border-color: rgba(14, 165, 233, 0.3);
}

.slider-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    background: #ef4444;
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 100px;
    text-transform: uppercase;
    letter-spacing: .05em;
}

.slider-badge.new {
    background: #10b981;
}

/* ── HOVER IMAGE GALLERY ── */
.hover-gallery {
    position: relative;
    width: 140px;
    height: 140px;
    margin: 20px auto;
}

.hover-gallery img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.4s ease-out;
}

.hover-gallery .hover-img {
    opacity: 0;
    transform: scale(0.95);
}

.slider-item:hover .hover-gallery .main-img {
    opacity: 0;
    transform: scale(1.05);
}

.slider-item:hover .hover-gallery .hover-img {
    opacity: 1;
    transform: scale(1.15);
}

.slider-item img {
    width: 200px;
    height: 200px;
    object-fit: contain;
    margin: 0 auto 20px;
    background: #f8fafc;
    border-radius: 16px;
    padding: 16px;
    transition: transform 0.3s;
}

.slider-item:hover {
    box-shadow: var(--shadow-md);
    border-color: rgba(14, 165, 233, 0.3);
}

.slider-item h4 {
    font-family: var(--font-title);
    font-size: 16px;
    color: var(--text-1);
    margin-bottom: 8px;
    line-height: 1.4;
}

.slider-item p {
    font-weight: 600;
    color: var(--accent-orange);
    font-size: 15px;
    margin-bottom: 16px;
}

.slider-item .rating {
    margin-top: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text-3);
}

.slider-item .rating svg {
    color: #fbbf24;
}

/* RESPONSIVE */
@media (max-width: 900px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .quick-specs {
        grid-template-columns: 1fr;
    }

    .related-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 600px) {
    .related-grid {
        grid-template-columns: 1fr;
    }

    .purchase-actions {
        flex-direction: column;
        align-items: stretch;
    }
}

/* ── DETAIL HERO ── */
.detail-hero {
    padding: 130px 40px 60px;
    /* Increased padding top to clear header */
    background: #ffffff url('../img/products_main_banner.png') center/cover no-repeat;
    border-bottom: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}

.hero-mesh {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(245, 158, 11, .15) 1px, transparent 1px),
        linear-gradient(90deg, rgba(245, 158, 11, .15) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(15, 23, 42, 0.85) 0%, rgba(15, 23, 42, 0.4) 40%, rgba(15, 23, 42, 0.1) 100%);
    background-size: 48px 48px, 48px 48px, 100% 100%;
}

.hero-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    pointer-events: none;
}

.hero-orb-amber-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(245, 158, 11, .1) 0%, transparent 70%);
    top: -200px;
    right: -150px;
}

.hero-orb-amber-2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(217, 119, 6, .1) 0%, transparent 70%);
    bottom: -150px;
    left: -100px;
}

.hero-inner {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    gap: 48px;
    flex-wrap: wrap;
    max-width: 1200px;
    margin: 0 auto;
}

.hero-text {
    flex: 1;
    min-width: 280px;
}

.hero-breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-title);
    font-size: 11px;
    letter-spacing: .1em;
    color: rgba(255, 255, 255, 0.7);
    text-transform: uppercase;
    margin-bottom: 18px;
}

.hero-breadcrumb a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color .3s;
}

.hero-breadcrumb a:hover {
    color: #f59e0b;
}

.hero-breadcrumb .sep {
    color: rgba(255, 255, 255, 0.4);
}

.hero-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-title);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: .28em;
    text-transform: uppercase;
    color: #d97706;
    margin-bottom: 14px;
}

.hero-label::before {
    content: '';
    width: 20px;
    height: 1.5px;
    background: #d97706;
}

.hero-title {
    font-family: var(--font-title);
    font-size: clamp(32px, 4vw, 54px);
    font-weight: 700;
    line-height: 1.08;
    letter-spacing: -.03em;
    color: #fff;
    margin-bottom: 14px;
}

.hero-title span {
    background: linear-gradient(90deg, #f59e0b, #fbbf24);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: 15px;
    line-height: 1.65;
    color: rgba(255, 255, 255, 0.9);
    max-width: 420px;
    margin-bottom: 28px;
}

.hero-chips {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.hero-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 100px;
    padding: 6px 14px;
    font-family: var(--font-title);
    font-size: 11px;
    color: rgba(255, 255, 255, 0.95);
    letter-spacing: .04em;
}

.hero-stats {
    display: flex;
    gap: 0;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    width: fit-content;
    box-shadow: var(--shadow-sm);
}

.hero-stat {
    padding: 14px 22px;
    display: flex;
    flex-direction: column;
    gap: 3px;
    border-right: 1px solid var(--border);
}

.hero-stat:last-child {
    border-right: none;
}

.hero-stat-num {
    font-family: var(--font-title);
    font-size: 20px;
    font-weight: 700;
    color: var(--text-1);
    letter-spacing: -.02em;
}

.hero-stat-lbl {
    font-size: 10px;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--text-3);
}

/* Hero Visual */
.hero-visual {
    flex: 1;
    min-width: 320px;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 400px;
}

.hero-img-wrapper {
    position: absolute;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    animation: floatVisual 6s ease-in-out infinite;
}

.hero-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.hero-img-wrapper:hover img {
    transform: scale(1.05);
}

.hero-visual .img-main {
    width: 320px;
    height: 380px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 3;
    border: 3px solid rgba(245, 158, 11, 0.2);
    box-shadow: 0 25px 50px rgba(245, 158, 11, 0.15);
}

@keyframes floatVisual {

    0%,
    100% {
        transform: translate(-50%, -50%);
    }

    50% {
        transform: translate(-50%, calc(-50% - 15px));
    }
}

.hero-visual-badge {
    position: absolute;
    bottom: 28px;
    right: 20px;
    z-index: 5;
    border-radius: 16px;
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: var(--shadow-lg);
    animation: floatVisualBadge 5s ease-in-out infinite;
    animation-delay: -1s;
}

.badge-amber {
    background: linear-gradient(135deg, #fffbeb, #fef3c7);
}

@keyframes floatVisualBadge {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-12px);
    }
}

.badge-icon {
    font-size: 24px;
}