/* ==============================
   PRODUCT PAGE STYLES
   ============================== */

/* ===== PRODUCT HEADER ===== */
.product-header {
    padding: 120px 0 30px;
    background: var(--gradient-light);
}

.breadcrumb {
    background-color: transparent;
    padding: 0;
    margin: 0;
}

.breadcrumb-item a {
    color: var(--primary-light);
    text-decoration: none;
    transition: var(--transition);
}

.breadcrumb-item a:hover {
    color: var(--accent-color);
}

.breadcrumb-item.active {
    color: var(--text-dark);
}

.breadcrumb-item + .breadcrumb-item::before {
    content: "›";
    color: var(--text-light);
}

/* ===== PRODUCT GALLERY ===== */
.product-gallery {
    position: sticky;
    top: 90px;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.main-image {
    border-radius: 15px;
    overflow: hidden;
    margin-bottom: 0.25rem;
    box-shadow: var(--shadow-md);
    background-color: var(--bg-light);
}

.main-image img {
    width: 100%;
    aspect-ratio: 4 / 3;
    max-height: 60vh;
    object-fit: contain;
    display: block;
    transition: var(--transition);
}

.thumbnail-images {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(70px, 1fr));
    gap: 0.75rem;
}

.thumbnail-images.single-thumbnail {
    grid-template-columns: 90px;
    justify-content: start;
}

.thumbnail {
    border-radius: 10px;
    overflow: hidden;
    cursor: pointer;
    border: 3px solid transparent;
    transition: var(--transition);
    opacity: 0.6;
    aspect-ratio: 1 / 1; /* Keep thumbnails square */
}

.thumbnail:hover,
.thumbnail.active {
    border-color: var(--accent-color);
    opacity: 1;
}

.thumbnail-images.single-thumbnail .thumbnail {
    width: 90px;
    justify-self: start;
}

.thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.product-gallery-enhanced .main-image {
    position: relative;
    cursor: zoom-in;
}

.product-gallery-enhanced .main-image img {
    transform-origin: var(--product-zoom-x, 50%) var(--product-zoom-y, 50%);
    will-change: transform;
}

.product-gallery-enhanced .main-image.is-zooming img {
    transform: scale(1.75);
}

.thumbnail-carousel {
    position: relative;
    display: grid;
    grid-template-columns: 38px minmax(0, 1fr) 38px;
    align-items: center;
    gap: 0.55rem;
    width: 100%;
    max-width: 100%;
}

.thumbnail-carousel.single-thumbnail {
    grid-template-columns: minmax(0, 1fr);
}

.thumbnail-carousel .thumbnail-images {
    display: flex;
    gap: 0.75rem;
    width: 100%;
    max-width: 100%;
    min-width: 0;
    overflow-x: auto;
    overflow-y: hidden;
    scroll-snap-type: x proximity;
    scrollbar-width: thin;
    scrollbar-color: rgba(31, 58, 95, 0.28) transparent;
    padding: 0.12rem 0.08rem 0.45rem;
}

.thumbnail-carousel .thumbnail-images::-webkit-scrollbar {
    height: 6px;
}

.thumbnail-carousel .thumbnail-images::-webkit-scrollbar-track {
    background: transparent;
}

.thumbnail-carousel .thumbnail-images::-webkit-scrollbar-thumb {
    background: rgba(31, 58, 95, 0.28);
    border-radius: 999px;
}

.thumbnail-carousel .thumbnail {
    flex: 0 0 78px;
    width: 78px;
    height: 78px;
    min-width: 78px;
    max-width: none;
    scroll-snap-align: center;
    background: var(--bg-white);
    box-shadow: 0 8px 22px rgba(24, 34, 48, 0.08);
    object-fit: cover;
    display: block;
}

.thumbnail-carousel .thumbnail.active {
    transform: translateY(-1px);
    box-shadow: 0 12px 26px rgba(31, 58, 95, 0.16);
}

.thumbnail-nav {
    width: 38px;
    height: 38px;
    border: 1px solid rgba(31, 58, 95, 0.2);
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.92);
    color: var(--primary-light);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.55rem;
    line-height: 1;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 10px 24px rgba(24, 34, 48, 0.08);
}

.thumbnail-nav:hover:not(:disabled),
.thumbnail-nav:focus-visible:not(:disabled) {
    background: var(--primary-light);
    color: var(--secondary-color);
    border-color: var(--primary-light);
    transform: translateY(-1px);
}

.thumbnail-nav:disabled {
    opacity: 0.32;
    cursor: default;
    box-shadow: none;
}

.thumbnail-carousel.single-thumbnail .thumbnail-nav,
.thumbnail-carousel:not(.has-thumbnail-overflow) .thumbnail-nav {
    display: none;
}

.thumbnail-carousel:not(.has-thumbnail-overflow) {
    grid-template-columns: minmax(0, 1fr);
}

.thumbnail-carousel:not(.has-thumbnail-overflow) .thumbnail-images {
    overflow: visible;
}

.thumbnail-carousel.single-thumbnail .thumbnail-images {
    justify-content: start;
    overflow: visible;
    padding-bottom: 0;
}

.thumbnail-carousel.single-thumbnail .thumbnail {
    flex-basis: 90px;
    width: 90px;
    height: 90px;
    min-width: 90px;
}

body.product-lightbox-open {
    overflow: hidden;
}

.product-lightbox {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: grid;
    grid-template-columns: minmax(44px, 6vw) minmax(0, 1fr) minmax(44px, 6vw);
    align-items: center;
    gap: 1rem;
    padding: clamp(1rem, 3vw, 2rem);
    background: rgba(8, 13, 22, 0.88);
    backdrop-filter: blur(12px);
    opacity: 0;
    transition: opacity 0.18s ease;
}

.product-lightbox.is-open {
    opacity: 1;
}

.product-lightbox-figure {
    grid-column: 2;
    margin: 0;
    min-width: 0;
    display: grid;
    justify-items: center;
    gap: 0.85rem;
}

.product-lightbox-figure img {
    max-width: min(100%, 1180px);
    max-height: 82vh;
    object-fit: contain;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 28px 80px rgba(0, 0, 0, 0.42);
}

.product-lightbox-counter {
    color: rgba(255, 255, 255, 0.78);
    font-size: 0.88rem;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.product-lightbox-close,
.product-lightbox-nav {
    border: 1px solid rgba(255, 255, 255, 0.18);
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    backdrop-filter: blur(8px);
}

.product-lightbox-close:hover,
.product-lightbox-close:focus-visible,
.product-lightbox-nav:hover,
.product-lightbox-nav:focus-visible {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.34);
    transform: translateY(-1px);
}

.product-lightbox-close {
    position: absolute;
    top: clamp(0.8rem, 2vw, 1.4rem);
    right: clamp(0.8rem, 2vw, 1.4rem);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    font-size: 1.8rem;
    line-height: 1;
}

.product-lightbox-nav {
    width: clamp(44px, 5vw, 58px);
    height: clamp(44px, 5vw, 58px);
    border-radius: 50%;
    font-size: clamp(2rem, 4vw, 3rem);
    line-height: 1;
}

.product-lightbox-prev {
    grid-column: 1;
    justify-self: center;
}

.product-lightbox-next {
    grid-column: 3;
    justify-self: center;
}

/* ===== PRODUCT INFO ===== */
.product-info {
    padding: 2rem;
    background-color: var(--bg-white);
    border-radius: 15px;
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}

.product-info::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 85% 10%, rgba(47, 93, 155, 0.05), transparent 50%);
    opacity: 0.6;
    pointer-events: none;
}

.product-category {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary-light);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}

.product-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-bottom: 0.75rem;
}

.product-subcategory {
    display: inline-block;
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--accent-color);
    text-transform: uppercase;
    letter-spacing: 0.9px;
}

.product-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.product-rating {
    display: flex;
    align-items: center;
    margin-bottom: 1.5rem;
}

.product-rating i {
    color: var(--accent-color);
    font-size: 1.2rem;
    margin-right: 0.2rem;
}

.rating-text {
    margin-left: 0.5rem;
    color: var(--text-light);
    font-size: 0.95rem;
}

.product-description {
    font-size: 1rem;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 2rem;
}

.product-description strong {
    color: var(--text-dark);
}

.product-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
    margin-bottom: 1.5rem;
}

.product-tag {
    display: inline-flex;
    align-items: center;
    padding: 0.45rem 0.85rem;
    border-radius: 999px;
    background: rgba(139, 69, 19, 0.08);
    color: var(--primary-color);
    font-size: 0.8rem;
    font-weight: 600;
}

/* ===== PRODUCT FEATURES BOX ===== */
.product-features-box {
    background: var(--gradient-light);
    padding: 2rem;
    border-radius: 15px;
    border: 2px solid var(--border-color);
    margin-bottom: 2rem;
    position: relative;
    overflow: hidden;
}

.product-features-box::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 15% 20%, rgba(247, 148, 29, 0.07), transparent 50%);
    opacity: 0.65;
    pointer-events: none;
}

.product-features-box h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

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

.features-list li {
    padding: 0.7rem 0;
    font-size: 0.95rem;
    color: var(--text-dark);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
}

.features-list li:last-child {
    border-bottom: none;
}

.features-list i {
    color: var(--primary-light);
    font-size: 1.2rem;
    margin-right: 1rem;
}

/* ===== PRODUCT ACTIONS ===== */
.product-actions {
    display: flex;
    gap: 0.85rem;
    margin-top: 2rem;
    padding-top: 1.1rem;
    border-top: 1px solid rgba(31, 58, 95, 0.14);
}

.product-actions .btn {
    flex: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.55rem;
    min-height: 46px;
    padding: 0.8rem 1.1rem;
    font-size: 0.92rem;
    font-weight: 600;
    letter-spacing: 0.2px;
    border-radius: 999px;
    transition: all 0.25s ease;
    position: relative;
    overflow: hidden;
    border: 1px solid transparent;
    box-shadow: none;
}

.product-actions .btn i {
    font-size: 0.95rem;
}

.product-actions .btn-primary {
    background: transparent;
    border-color: rgba(31, 58, 95, 0.24);
    color: var(--primary-light);
}

.product-actions .btn-primary:hover {
    background: rgba(31, 58, 95, 0.06);
    color: var(--primary-light);
    transform: translateY(-1px);
    border-color: rgba(31, 58, 95, 0.4);
}

.btn-success {
    background: linear-gradient(135deg, #25d366 0%, #1ca851 100%);
    border-color: rgba(22, 130, 63, 0.18);
    color: var(--secondary-color);
    box-shadow: 0 10px 18px rgba(37, 211, 102, 0.16);
}

.btn-success:hover {
    background: linear-gradient(135deg, #1fb855 0%, #148643 100%);
    color: var(--secondary-color);
    transform: translateY(-1px);
    box-shadow: 0 12px 20px rgba(37, 211, 102, 0.22);
}

/* ===== SPECIFICATIONS SECTION ===== */
.specifications-section {
    background-color: var(--bg-light);
}

.spec-card {
    background-color: var(--bg-white);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow-sm);
    height: 100%;
    transition: var(--transition);
}

.spec-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.spec-card h3 {
    font-size: 1.4rem;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
    display: flex;
    align-items: center;
}

.spec-card h3 i {
    margin-right: 0.7rem;
    color: var(--primary-color);
    font-size: 1.5rem;
}

.spec-table {
    width: 100%;
    border-collapse: collapse;
}

.spec-table tr {
    border-bottom: 1px solid var(--border-color);
}

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

.spec-table td {
    padding: 0.8rem 0;
    font-size: 0.95rem;
}

.spec-table td:first-child {
    color: var(--text-light);
    font-weight: 500;
    width: 50%;
}

.spec-table td:last-child {
    color: var(--text-dark);
    font-weight: 600;
    text-align: right;
}

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

.spec-list li {
    padding: 0.7rem 0;
    padding-left: 1.5rem;
    font-size: 0.95rem;
    color: var(--text-dark);
    border-bottom: 1px solid var(--border-color);
    position: relative;
}

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

.spec-list li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-size: 1.5rem;
    line-height: 1;
}

/* ===== RELATED PRODUCTS ===== */
.product-card-small {
    background-color: var(--bg-white);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.product-card-small:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.product-image-small {
    position: relative;
    overflow: hidden;
    padding-top: 75%;
    background-color: var(--bg-light);
}

.product-image-small img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.product-card-small:hover .product-image-small img {
    transform: scale(1.1);
}

.product-content-small {
    padding: 1.5rem;
    text-align: center;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.product-content-small h4 {
    font-size: 1.3rem;
    margin-bottom: 0.7rem;
    color: var(--text-dark);
}

.product-content-small p {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.btn-outline-primary {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    background-color: transparent;
}

.btn-outline-primary:hover {
    background-color: var(--primary-color);
    color: var(--secondary-color);
    border-color: var(--primary-color);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 991px) {
    .product-gallery {
        position: static;
        margin-bottom: 2rem;
        top: auto;
    }
    
    .product-title {
        font-size: 2rem;
    }
    
    .product-actions {
        flex-direction: column;
    }
    
    .product-actions .btn {
        width: 100%;
    }
}

@media (max-width: 767px) {
    .product-header {
        padding: 100px 0 20px;
    }
    
    .product-title {
        font-size: 1.8rem;
    }
    
    .product-info {
        padding: 1.5rem;
    }
    
    .thumbnail-images {
        grid-template-columns: repeat(4, 1fr);
        gap: 0.5rem;
    }

    .thumbnail-carousel {
        grid-template-columns: 34px minmax(0, 1fr) 34px;
        gap: 0.4rem;
    }

    .thumbnail-nav {
        width: 34px;
        height: 34px;
        font-size: 1.35rem;
    }

    .thumbnail-carousel .thumbnail {
        flex-basis: 68px;
        width: 68px;
        height: 68px;
        min-width: 68px;
    }
    
    .spec-card {
        padding: 1.5rem;
    }
}

@media (max-width: 575px) {
    .product-title {
        font-size: 1.5rem;
    }
    
    .thumbnail-images {
        grid-template-columns: repeat(3, 1fr);
    }

    .thumbnail-carousel {
        grid-template-columns: minmax(0, 1fr);
    }

    .thumbnail-nav {
        display: none;
    }

    .thumbnail-carousel .thumbnail {
        flex-basis: 64px;
        width: 64px;
        height: 64px;
        min-width: 64px;
    }

    .product-lightbox {
        grid-template-columns: 1fr 1fr;
        grid-template-rows: 1fr auto;
        gap: 0.75rem;
        padding: 1rem;
    }

    .product-lightbox-figure {
        grid-column: 1 / -1;
        grid-row: 1;
    }

    .product-lightbox-figure img {
        max-height: 76vh;
        border-radius: 10px;
    }

    .product-lightbox-prev,
    .product-lightbox-next {
        grid-row: 2;
        width: 48px;
        height: 48px;
    }

    .product-lightbox-prev {
        grid-column: 1;
        justify-self: end;
    }

    .product-lightbox-next {
        grid-column: 2;
        justify-self: start;
    }
}

@media (hover: none), (pointer: coarse) {
    .product-gallery-enhanced .main-image {
        cursor: default;
    }
}

@media (prefers-reduced-motion: reduce) {
    .product-gallery-enhanced .main-image img,
    .thumbnail-carousel .thumbnail,
    .thumbnail-nav,
    .product-lightbox,
    .product-lightbox-close,
    .product-lightbox-nav {
        transition: none;
    }
}

/* ===== FOOTER CONTACT ===== */
.footer-contact {
    font-size: 0.9rem;
    line-height: 2;
}

.footer-contact i {
    margin-right: 0.5rem;
}