@import url('https://fonts.googleapis.com/css2?family=Poppins:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&display=swap');

    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

    body {
        font-family: 'Poppins', -apple-system, BlinkMacSystemFont,
            'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    }

    button,
    input,
    textarea,
    select {
        font-family: 'Poppins', inherit;
    }

    .product-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 40px;
        padding: 40px;
    }

    /* Image Gallery */
    .image-gallery {
        position: relative;
    }

    .main-image {
        width: 100%;
        overflow: hidden;
        position: relative;
        padding: 20px;
        border-radius: 15px;
        cursor: pointer;
    }

    .main-image img {
        width: 100%;
        height: auto;
        display: block;
        border-radius: 10px;
    }

    .thumbnail-container {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 15px;
        margin-top: 20px;
    }

    .thumbnail {
        border-radius: 10px;
        overflow: hidden;
        cursor: pointer;
        transition: transform 0.3s;
        aspect-ratio: 1;
    }

    .thumbnail:hover {
        transform: scale(1.05);
    }

    .thumbnail.gradient-1 {

        padding: 10px;
    }

    .thumbnail.gradient-2 {

        padding: 10px;
    }

    .thumbnail.gradient-3 {

        padding: 10px;
    }

    .thumbnail.gradient-4 {

        padding: 10px;
    }

    .thumbnail img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        border-radius: 5px;
    }

    /* Product Info */
    .product-info {
        display: flex;
        flex-direction: column;
        justify-content: space-between;
    }

    .stock-badge {
        background: #ff4444;
        color: white;
        padding: 5px 15px;
        border-radius: 20px;
        font-size: 12px;
        font-weight: bold;
        display: inline-block;
        margin-bottom: 10px;
        width: fit-content;
    }

    .product-title {
        font-size: 42px;
        font-weight: bold;
        color: #1a1a1a;
        margin-bottom: 15px;
        line-height: 1.2;
    }

    .price-section {
        margin-bottom: 25px;
    }

    .current-price {
        font-size: 32px;
        font-weight: bold;
        color: #1a1a1a;
        margin-right: 15px;
    }

    .old-price {
        font-size: 24px;
        color: #999;
        text-decoration: line-through;
    }

    .btn-buy-now {
        display: block;
        width: 80%;
        margin: 0 auto 25px auto;
        background: linear-gradient(135deg, #ffa500 0%, #ff8c00 100%);
        color: white;
        border: none;
        padding: 18px;
        border-radius: 50px;
        font-size: 18px;
        font-weight: bold;
        cursor: pointer;
        transition: all 0.3s ease;
        text-decoration: none;
        text-align: center;
    }

    .btn-buy-now:hover {
        background: #000;
    }

    .subtitle {
        font-size: 28px;
        font-weight: bold;
        color: #1a1a1a;
        margin-bottom: 15px;
    }

    .description {
        color: #555;
        line-height: 1.8;
        margin-bottom: 20px;
    }

    .specs-title {
        font-size: 32px;
        font-weight: bold;
        color: #1a1a1a;
        margin: 30px 0 20px 0;
    }

    .specs-grid {
        display: grid;
        gap: 12px;
    }

    .spec-item {
        display: grid;
        grid-template-columns: 150px 1fr;
        gap: 10px;
        padding: 10px 0;
        border-bottom: 1px solid #f0f0f0;
    }

    .spec-label {
        font-weight: bold;
        color: #1a1a1a;
    }

    .spec-value {
        color: #555;
    }

    /* Mobile Image Slider */
    .mobile-slider {
        display: none;
        overflow: hidden;
        position: relative;
        border-radius: 0;
    }

    .slider-track {
        display: flex;
        transition: transform 0.3s ease;
    }

    .slider-item {
        flex: 0 0 100%;
        background: linear-gradient(135deg, #b721ff 0%, #21d4fd 100%);
        position: relative;
        cursor: pointer;
    }

    .slider-item img {
        width: 100%;
        height: auto;
        display: block;
    }

    .slider-dots {
        display: flex;
        justify-content: center;
        gap: 8px;
        padding: 15px 0;
        background: white;
    }

    .dot {
        width: 8px;
        height: 8px;
        border-radius: 50%;
        background: #ddd;
        cursor: pointer;
        transition: all 0.3s ease;
    }

    .dot.active {
        background: #ffa500;
        width: 24px;
        border-radius: 4px;
    }

    /* Image Viewer Overlay */
    .image-viewer-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.95);
        z-index: 9999;
        animation: fadeIn 0.3s ease;
    }

    .image-viewer-overlay.active {
        display: block;
    }

    @keyframes fadeIn {
        from {
            opacity: 0;
        }

        to {
            opacity: 1;
        }
    }

    .viewer-close {
        position: fixed;
        top: 20px;
        right: 20px;
        width: 40px;
        height: 40px;
        background: rgba(255, 255, 255, 0.2);
        border: none;
        border-radius: 50%;
        color: white;
        font-size: 24px;
        cursor: pointer;
        z-index: 10001;
        transition: all 0.3s ease;
    }

    .viewer-close:hover {
        background: rgba(255, 255, 255, 0.3);
        transform: rotate(90deg);
    }

    .viewer-main-image {
        width: 100%;
        height: calc(100vh - 150px);
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 20px;
    }

    .viewer-main-image img {
        max-width: 100%;
        max-height: 100%;
        object-fit: contain;
        border-radius: 10px;
    }

    .viewer-thumbnails {
        position: fixed;
        bottom: 20px;
        left: 50%;
        transform: translateX(-50%);
        display: flex;
        gap: 10px;
        padding: 15px;
        background: rgba(0, 0, 0, 0.5);
        border-radius: 15px;
        backdrop-filter: blur(10px);
    }

    .viewer-thumb {
        width: 60px;
        height: 60px;
        border-radius: 8px;
        overflow: hidden;
        cursor: pointer;
        opacity: 0.6;
        transition: all 0.3s ease;
        border: 2px solid transparent;
    }

    .viewer-thumb:hover {
        opacity: 0.8;
    }

    .viewer-thumb.active {
        opacity: 1;
        border-color: #ffa500;
    }

    .viewer-thumb img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

    /* Desktop Viewer */
    .viewer-desktop {
        display: none;
    }

    .viewer-content {
        display: flex;
        height: 100vh;
    }

    .viewer-scroll-area {
        flex: 1;
        overflow-y: auto;
        padding: 60px 20px;
        scroll-behavior: smooth;
    }

    .viewer-scroll-area::-webkit-scrollbar {
        width: 8px;
    }

    .viewer-scroll-area::-webkit-scrollbar-track {
        background: rgba(255, 255, 255, 0.1);
    }

    .viewer-scroll-area::-webkit-scrollbar-thumb {
        background: rgba(255, 255, 255, 0.3);
        border-radius: 4px;
    }

    .viewer-image-item {
        max-width: 900px;
        margin: 0 auto 30px;
        border-radius: 15px;
        overflow: hidden;
    }

    .viewer-image-item img {
        width: 100%;
        height: auto;
        display: block;
    }

    .viewer-nav {
        width: 200px;
        background: rgba(0, 0, 0, 0.8);
        padding: 80px 15px 20px;
        overflow-y: auto;
    }

    .viewer-nav::-webkit-scrollbar {
        width: 6px;
    }

    .viewer-nav::-webkit-scrollbar-track {
        background: rgba(255, 255, 255, 0.1);
    }

    .viewer-nav::-webkit-scrollbar-thumb {
        background: rgba(255, 255, 255, 0.3);
        border-radius: 3px;
    }

    .viewer-nav-item {
        margin-bottom: 15px;
        border-radius: 10px;
        overflow: hidden;
        cursor: pointer;
        opacity: 0.6;
        transition: all 0.3s ease;
        border: 2px solid transparent;
    }

    .viewer-nav-item:hover {
        opacity: 0.8;
    }

    .viewer-nav-item.active {
        opacity: 1;
        border-color: #ffa500;
    }

    .viewer-nav-item img {
        width: 100%;
        height: auto;
        display: block;
    }


    /* Responsive Design */
    @media (min-width: 769px) {
        .viewer-desktop {
            display: block;
        }

        .viewer-mobile {
            display: none;
        }
    }

    @media (max-width: 1024px) {
        .product-grid {
            grid-template-columns: 1fr;
            gap: 30px;
            padding: 30px;
        }

        .thumbnail-container {
            grid-template-columns: repeat(4, 1fr);
        }
    }

    @media (max-width: 768px) {
        .product-grid {
            padding: 0;
        }

        .image-gallery .main-image,
        .image-gallery .thumbnail-container {
            display: none;
        }

        .mobile-slider {
            display: block;
        }

        .product-info {
            padding: 20px;
        }

        .product-title {
            font-size: 28px;
        }

        .current-price {
            font-size: 24px;
        }

        .old-price {
            font-size: 18px;
        }

        .subtitle {
            font-size: 22px;
        }

        .specs-title {
            font-size: 24px;
        }

        .spec-item {
            grid-template-columns: 1fr;
            gap: 5px;
        }

        .quantity-section {
            flex-wrap: nowrap;
            align-items: stretch;
        }

        .quantity-control {
            flex: 0 0 auto;
            width: auto;
        }

        .btn-add-cart {
            flex: 1;
        }

        .btn-buy-now {
            width: 100%;
        }

        .viewer-thumbnails {
            width: 90%;
            overflow-x: auto;
            justify-content: flex-start;
        }

        .viewer-thumbnails::-webkit-scrollbar {
            height: 4px;
        }

        .viewer-thumbnails::-webkit-scrollbar-track {
            background: rgba(255, 255, 255, 0.1);
        }

        .viewer-thumbnails::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.3);
            border-radius: 2px;
        }
    }

    @media (max-width: 480px) {
        .product-title {
            font-size: 24px;
        }

        .current-price {
            font-size: 20px;
        }
    }

    /* ===== HERO VIDEO ===== */
    .hero-video {
        position: relative;
        width: 100%;
        height: 100vh;
        overflow: hidden;
        background: black;
    }

    .hero-video-el {
        position: absolute;
        inset: 0;
        width: 100%;
        height: 100%;
        object-fit: cover;
        transform: scale(1);
        transition: transform 0.1s linear;
        will-change: transform;
    }

    /* Dark premium overlay */
    .hero-video-overlay {
        position: absolute;
        inset: 0;
        background: radial-gradient(circle at center,
                rgba(0, 0, 0, 0.25),
                rgba(0, 0, 0, 0.7));
        z-index: 1;
    }

    /* Text container – bottom left */
    .hero-content {
        position: absolute;
        bottom: 40px;
        left: 20px;
        z-index: 2;
        max-width: 700px;

        display: flex;
        flex-direction: column;
        align-items: flex-start;
        text-align: left;
        color: white;
    }

    /* Title */
    .hero-title {
        font-size: clamp(34px, 5vw, 68px);
        font-weight: 800;
        letter-spacing: 0.5px;
        margin-bottom: 14px;
    }

    /* Subtitle */
    .hero-subtitle {
        font-size: clamp(15px, 2vw, 22px);
        line-height: 1.6;
        opacity: 0.9;
        margin-bottom: 28px;
    }

    /* CTA stays same */
    .hero-cta {
        padding: 16px 40px;
        border-radius: 50px;
        background: linear-gradient(135deg, #ffa500, #ff8c00);
        color: white;
        font-size: 17px;
        font-weight: 700;
        text-decoration: none;
        transition: transform 0.3s ease, box-shadow 0.3s ease;
        backdrop-filter: blur(60px);
    }

    .hero-cta:hover {
        transform: translateY(-2px);
        box-shadow: 0 15px 40px rgba(255, 165, 0, 0.4);
    }


    @media (max-width: 768px) {
        .hero-video {
            height: 70vh;
        }

        .hero-content {
            bottom: 24px;
            left: 16px;
            right: 16px;
            max-width: 280px;
        }

        .hero-title {
            font-size: 24px;
            margin-bottom: 8px;
        }

        .hero-subtitle {
            font-size: 12px;
            line-height: 1.4;
            margin-bottom: 14px;
        }

        /* CTA scale down */
        .hero-cta {
            padding: 10px 22px;
            font-size: 13px;
            border-radius: 40px;
        }
    }