:root {
      --blue:#CC1B1B;--blue-dark:#A51414;--blue-light:#FDECEA;--blue-mid:#F5BFBF;
      --teal:#00A89D;--teal-dark:#008880;--teal-light:#E0F5F4;
      --white:#FFFFFF;--off-white:#F7FAFD;--gray-50:#F0F4F8;--gray-100:#E2E8F0;
      --gray-200:#CBD5E1;--gray-400:#94A3B8;--gray-600:#475569;
      --dark:#0F1C2E;--text:#1A2B3C;--text-muted:#607080;
      --green:#10B981;--orange:#F97316;--red:#EF4444;
      --radius-sm:4px;--radius:8px;--radius-lg:14px;--radius-xl:20px;
      --shadow-sm:0 1px 3px rgba(0,0,0,0.07);--shadow:0 4px 16px rgba(204,27,27,0.1);--shadow-lg:0 12px 36px rgba(0,0,0,0.1);
      --nav-h:68px;--topbar-h:38px;
    }
    *,*::before,*::after{margin:0;padding:0;box-sizing:border-box;}
    html{scroll-behavior:smooth;}
    body{font-family:"Inter",sans-serif;font-optical-sizing:auto;color:var(--text);background:var(--off-white);overflow-x:hidden;line-height:1.6;}
    a{text-decoration:none;color:inherit;}ul{list-style:none;}
    button{border:none;background:none;cursor:pointer;font-family:inherit;}
    input,select,textarea{font-family:inherit;}

    /* ── TOPBAR ── */
    .topbar{height:var(--topbar-h);background:var(--dark);display:flex;align-items:center;justify-content:space-between;padding:0 48px;}
    .topbar-left{display:flex;align-items:center;gap:20px;font-size:12px;color:rgba(255,255,255,0.65);}
    .topbar-left svg{width:13px;height:13px;flex-shrink:0;}
    .topbar-sep{width:1px;height:14px;background:rgba(255,255,255,0.12);}
    .topbar-right{display:flex;align-items:center;gap:12px;}
    .topbar-phone{font-size:13px;font-weight:700;color:#fff;display:flex;align-items:center;gap:7px;}
    .topbar-phone svg{width:13px;height:13px;color:var(--teal);}
    
    .topbar-social{display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:var(--radius-sm);color:rgba(255,255,255,0.65);transition:all .2s;}
    .topbar-social:hover{color:#fff;background:rgba(255,255,255,0.12);}
    .topbar-badge{font-size:11px;font-weight:700;letter-spacing:.5px;text-transform:uppercase;color:var(--dark);background:var(--teal);padding:3px 9px;border-radius:var(--radius-sm);}

    /* ── NAV ── */
    nav{position:sticky;top:0;z-index:100;height:var(--nav-h);background:var(--white);border-bottom:1px solid var(--gray-100);box-shadow:var(--shadow-sm);display:flex;align-items:center;justify-content:space-between;padding:0 48px;gap:20px;}
    .nav-logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
    .nav-logo img { height: 44px; width: auto; display: block; }
    .nav-search{display:flex;align-items:center;background:var(--gray-50);border:1.5px solid var(--gray-100);border-radius:var(--radius);overflow:hidden;width:300px;}
    .nav-search:focus-within{border-color:var(--blue);box-shadow:0 0 0 3px rgba(204,27,27,.1);}
    .nav-search-input{flex:1;padding:10px 14px;font-size:13px;border:none;background:transparent;color:var(--text);outline:none;}
    .nav-search-input::placeholder{color:var(--gray-400);}
    .nav-search-btn{width:40px;height:40px;background:var(--blue);display:flex;align-items:center;justify-content:center;transition:background .2s;}
    .nav-search-btn:hover{background:var(--blue-dark);}
    .nav-search-btn svg{width:16px;height:16px;color:#fff;}
    .nav-links{display:flex;align-items:center;gap:2px;}
    .nav-link{padding:8px 13px;font-size:13px;font-weight:500;color:var(--gray-600);border-radius:var(--radius-sm);transition:all .2s;white-space:nowrap;}
    .nav-link:hover,.nav-link.active{background:var(--blue-light);color:var(--blue);}
    .nav-cta{display:flex;align-items:center;gap:10px;flex-shrink:0;}
    .btn-outline{padding:9px 16px;font-size:13px;font-weight:600;border:1.5px solid var(--blue);color:var(--blue);border-radius:var(--radius);transition:all .2s;}
    .btn-outline:hover{background:var(--blue-light);}
    .btn-primary{padding:9px 16px;font-size:13px;font-weight:600;background:var(--blue);color:#fff;border-radius:var(--radius);transition:all .2s;display:inline-flex;align-items:center;gap:7px;}
    .btn-primary:hover{background:var(--blue-dark);}
    .btn-primary svg{width:14px;height:14px;}

    /* ── BREADCRUMB ── */
    .breadcrumb-bar{background:var(--white);border-bottom:1px solid var(--gray-100);padding:12px 48px;}
    .breadcrumb{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--text-muted);flex-wrap:wrap;}
    .breadcrumb a{color:var(--blue);}
    .breadcrumb svg{width:12px;height:12px;flex-shrink:0;}

    /* ── MAIN LAYOUT ── */
    .product-main{display:grid;grid-template-columns:1fr 440px;gap:0;background:var(--white);}

    /* ── IMAGE GALLERY ── */
    .gallery{padding:32px 40px 32px 48px;display:flex;flex-direction:column;gap:16px;}
    .gallery-main{position:relative;background:var(--gray-50);border-radius:var(--radius-lg);aspect-ratio:4/3;display:flex;align-items:center;justify-content:center;overflow:hidden;border:1.5px solid var(--gray-100);}
    .gallery-main-img{width:100%;height:100%;object-fit:contain;display:flex;align-items:center;justify-content:center;}
    .gallery-main-img svg{width:140px;height:140px;color:var(--blue-mid);}
    .gallery-badge-wrap{position:absolute;top:14px;left:14px;display:flex;flex-direction:column;gap:6px;}
    .g-badge{font-size:10px;font-weight:700;letter-spacing:.5px;text-transform:uppercase;padding:4px 10px;border-radius:4px;}
    .g-badge-new{background:var(--blue);color:#fff;}
    .g-badge-rental{background:var(--teal);color:#fff;}
    .gallery-zoom{position:absolute;top:14px;right:14px;width:34px;height:34px;background:rgba(255,255,255,.9);border:1px solid var(--gray-200);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s;}
    .gallery-zoom:hover{background:var(--white);box-shadow:var(--shadow);}
    .gallery-zoom svg{width:15px;height:15px;color:var(--gray-600);}
    .gallery-thumbs{display:flex;gap:10px;}
    .g-thumb{width:72px;height:72px;border-radius:var(--radius);background:var(--gray-50);border:2px solid var(--gray-100);display:flex;align-items:center;justify-content:center;cursor:pointer;overflow:hidden;transition:all .2s;flex-shrink:0;}
    .g-thumb:hover,.g-thumb.active{border-color:var(--blue);}
    .g-thumb svg{width:36px;height:36px;color:var(--blue-mid);}
    .g-thumb.active svg{color:var(--blue);}

    /* trust badges under gallery */
    .gallery-trust{display:flex;gap:12px;flex-wrap:wrap;}
    .g-trust-item{display:flex;align-items:center;gap:7px;font-size:12px;color:var(--text-muted);padding:7px 12px;background:var(--off-white);border:1px solid var(--gray-100);border-radius:var(--radius);}
    .g-trust-item svg{width:14px;height:14px;color:var(--teal);flex-shrink:0;}

    /* ── PRODUCT INFO PANEL ── */
    .product-info{padding:32px 48px 32px 40px;border-left:1px solid var(--gray-100);display:flex;flex-direction:column;gap:20px;overflow-y:auto;}
    .pi-brand{font-size:11px;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;color:var(--blue);}
    .pi-name{font-size:26px;font-weight:800;color:var(--dark);letter-spacing:-.5px;line-height:1.2;}
    .pi-rating-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
    .pi-stars{color:#F59E0B;font-size:14px;letter-spacing:-1px;}
    .pi-rating-num{font-size:13px;font-weight:700;color:var(--dark);}
    .pi-rating-count{font-size:12px;color:var(--blue);text-decoration:underline;cursor:pointer;}
    .pi-rating-sep{width:1px;height:14px;background:var(--gray-200);}
    .pi-in-stock{display:flex;align-items:center;gap:6px;font-size:12px;font-weight:600;color:var(--green);}
    .pi-in-stock svg{width:14px;height:14px;}
    .pi-divider{height:1px;background:var(--gray-100);}

    /* Pricing block */
    .pi-pricing{display:flex;flex-direction:column;gap:8px;}
    .pi-price-main{font-size:34px;font-weight:900;color:var(--dark);letter-spacing:-1px;line-height:1;}
    .pi-price-old{font-size:14px;color:var(--gray-400);text-decoration:line-through;display:inline;}
    .pi-price-save{font-size:12px;font-weight:700;color:var(--green);background:#ECFDF5;padding:2px 8px;border-radius:4px;display:inline;}
    .pi-rental-row{display:flex;align-items:center;gap:10px;padding:10px 14px;background:var(--teal-light);border:1.5px solid var(--teal-mid,#80D4CF);border-radius:var(--radius);}
    .pi-rental-icon{width:32px;height:32px;background:var(--teal);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;flex-shrink:0;}
    .pi-rental-icon svg{width:16px;height:16px;color:#fff;}
    .pi-rental-price{font-size:15px;font-weight:800;color:var(--teal-dark);}
    .pi-rental-label{font-size:11px;color:var(--teal-dark);}
    .pi-rental-link{font-size:12px;font-weight:600;color:var(--teal);margin-left:auto;white-space:nowrap;display:flex;align-items:center;gap:4px;}
    .pi-rental-link svg{width:12px;height:12px;}

    /* Options */
    .pi-option-label{font-size:12px;font-weight:700;color:var(--text);margin-bottom:8px;display:flex;align-items:center;justify-content:space-between;}
    .pi-option-label span{font-weight:400;color:var(--text-muted);}
    .color-swatches{display:flex;gap:8px;flex-wrap:wrap;}
    .color-swatch{width:32px;height:32px;border-radius:50%;cursor:pointer;border:2px solid transparent;transition:all .2s;position:relative;}
    .color-swatch.active,.color-swatch:hover{border-color:var(--dark);}
    .color-swatch.active::after{content:'';position:absolute;inset:-4px;border-radius:50%;border:2px solid var(--dark);}
    .size-opts{display:flex;gap:8px;flex-wrap:wrap;}
    .size-opt{padding:8px 16px;font-size:12px;font-weight:600;border:1.5px solid var(--gray-200);border-radius:var(--radius-sm);cursor:pointer;transition:all .2s;color:var(--text-muted);}
    .size-opt:hover{border-color:var(--blue);color:var(--blue);}
    .size-opt.active{border-color:var(--blue);background:var(--blue-light);color:var(--blue);}

    /* Qty row */
    .qty-add-row{display:grid;grid-template-columns:110px 1fr;gap:10px;}
    .qty-control{display:flex;align-items:center;border:1.5px solid var(--gray-200);border-radius:var(--radius);overflow:hidden;}
    .qty-btn{width:38px;height:44px;display:flex;align-items:center;justify-content:center;font-size:18px;color:var(--text-muted);transition:all .2s;}
    .qty-btn:hover{background:var(--gray-50);color:var(--dark);}
    .qty-num{flex:1;text-align:center;font-size:14px;font-weight:700;color:var(--dark);}
    .btn-add-quote{padding:0 20px;height:44px;font-size:13px;font-weight:700;background:var(--blue);color:#fff;border-radius:var(--radius);transition:all .2s;display:flex;align-items:center;justify-content:center;gap:8px;}
    .btn-add-quote:hover{background:var(--blue-dark);}
    .btn-add-quote svg{width:15px;height:15px;}
    .btn-rent-full{width:100%;padding:13px;font-size:13px;font-weight:700;background:var(--teal);color:#fff;border-radius:var(--radius);transition:all .2s;display:flex;align-items:center;justify-content:center;gap:8px;}
    .btn-rent-full:hover{background:var(--teal-dark);}
    .btn-rent-full svg{width:15px;height:15px;}
    .btn-wishlist-full{width:100%;padding:11px;font-size:13px;font-weight:600;border:1.5px solid var(--gray-200);color:var(--text-muted);border-radius:var(--radius);transition:all .2s;display:flex;align-items:center;justify-content:center;gap:8px;}
    .btn-wishlist-full:hover{border-color:var(--red);color:var(--red);}
    .btn-wishlist-full svg{width:15px;height:15px;}
    .btn-wishlist-full.active{border-color:var(--red);color:var(--red);background:#FEF2F2;}
    .btn-wishlist-full.active svg{fill:var(--red);}

    /* Delivery info */
    .delivery-info{display:flex;flex-direction:column;gap:8px;}
    .di-row{display:flex;align-items:flex-start;gap:10px;font-size:13px;}
    .di-icon{width:18px;height:18px;flex-shrink:0;margin-top:1px;}
    .di-icon svg{width:18px;height:18px;color:var(--teal);}
    .di-text strong{color:var(--dark);}
    .di-text span{color:var(--text-muted);}

    /* ── TABS SECTION ── */
    .tabs-section{background:var(--white);border-top:1px solid var(--gray-100);}
    .tabs-bar{display:flex;border-bottom:2px solid var(--gray-100);padding:0 48px;overflow-x:auto;}
    .tab-btn{padding:16px 20px;font-size:13px;font-weight:600;color:var(--text-muted);cursor:pointer;white-space:nowrap;border-bottom:2px solid transparent;margin-bottom:-2px;transition:all .2s;}
    .tab-btn:hover{color:var(--dark);}
    .tab-btn.active{color:var(--blue);border-bottom-color:var(--blue);}
    .tab-panel{display:none;padding:36px 48px;}
    .tab-panel.active{display:block;}

    /* Specs tab */
    .specs-grid{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1.5px solid var(--gray-100);border-radius:var(--radius-lg);overflow:hidden;}
    .spec-row{display:flex;border-bottom:1px solid var(--gray-100);}
    .spec-row:last-child{border-bottom:none;}
    .spec-row:nth-child(odd){background:var(--off-white);}
    .spec-key{padding:12px 16px;font-size:13px;font-weight:600;color:var(--text-muted);width:200px;flex-shrink:0;border-right:1px solid var(--gray-100);}
    .spec-val{padding:12px 16px;font-size:13px;color:var(--dark);}

    /* Description tab */
    .desc-content{max-width:720px;display:flex;flex-direction:column;gap:18px;}
    .desc-content h3{font-size:18px;font-weight:700;color:var(--dark);}
    .desc-content p{font-size:14px;color:var(--text-muted);line-height:1.8;}
    .desc-features{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:8px;}
    .desc-feat{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--text);}
    .desc-feat-check{width:18px;height:18px;border-radius:50%;background:var(--blue-light);display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:1px;}
    .desc-feat-check svg{width:10px;height:10px;color:var(--blue);}

    /* Reviews tab */
    .reviews-header{display:flex;align-items:center;gap:40px;margin-bottom:32px;flex-wrap:wrap;}
    .rating-summary{text-align:center;}
    .rating-big{font-size:56px;font-weight:900;color:var(--dark);line-height:1;letter-spacing:-2px;}
    .rating-stars-big{color:#F59E0B;font-size:20px;letter-spacing:-1px;margin:4px 0;}
    .rating-total{font-size:12px;color:var(--text-muted);}
    .rating-bars{flex:1;display:flex;flex-direction:column;gap:6px;}
    .rating-bar-row{display:flex;align-items:center;gap:10px;font-size:12px;}
    .rating-bar-label{color:var(--text-muted);white-space:nowrap;width:36px;}
    .rating-bar-track{flex:1;height:8px;background:var(--gray-100);border-radius:4px;overflow:hidden;}
    .rating-bar-fill{height:100%;background:#F59E0B;border-radius:4px;}
    .rating-bar-count{color:var(--text-muted);width:20px;text-align:right;}
    .reviews-list{display:flex;flex-direction:column;gap:20px;}
    .review-card{padding:20px;background:var(--off-white);border:1px solid var(--gray-100);border-radius:var(--radius-lg);}
    .review-header{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:10px;}
    .review-author{display:flex;align-items:center;gap:10px;}
    .review-avatar{width:38px;height:38px;border-radius:50%;background:var(--blue);display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;color:#fff;flex-shrink:0;}
    .review-name{font-size:13px;font-weight:700;color:var(--dark);}
    .review-date{font-size:11px;color:var(--text-muted);}
    .review-stars{color:#F59E0B;font-size:13px;}
    .review-title{font-size:14px;font-weight:700;color:var(--dark);margin-bottom:6px;}
    .review-text{font-size:13px;color:var(--text-muted);line-height:1.7;}
    .review-verified{display:flex;align-items:center;gap:5px;font-size:11px;color:var(--green);margin-top:8px;font-weight:600;}
    .review-verified svg{width:12px;height:12px;}

    /* ── RELATED PRODUCTS ── */
    .related-section{padding:48px 48px;background:var(--off-white);border-top:1px solid var(--gray-100);}
    .section-label{font-size:11px;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;color:var(--blue);margin-bottom:6px;}
    .section-title{font-size:22px;font-weight:800;color:var(--dark);letter-spacing:-0.3px;margin-bottom:28px;}
    .related-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
    .related-card{background:var(--white);border:1.5px solid var(--gray-100);border-radius:var(--radius-lg);overflow:hidden;transition:all .25s;cursor:pointer;}
    .related-card:hover{border-color:var(--blue-mid);box-shadow:var(--shadow-lg);transform:translateY(-3px);}
    .rc-img-wrap{height:140px;background:var(--gray-50);display:flex;align-items:center;justify-content:center;border-bottom:1px solid var(--gray-100);}
    .rc-img-wrap svg{width:60px;height:60px;color:var(--blue-mid);}
    .rc-body{padding:14px;}
    .rc-brand-sm{font-size:10px;font-weight:700;letter-spacing:1px;text-transform:uppercase;color:var(--blue);margin-bottom:4px;}
    .rc-name-sm{font-size:13px;font-weight:600;color:var(--dark);line-height:1.4;margin-bottom:8px;}
    .rc-price-sm{font-size:15px;font-weight:800;color:var(--dark);}
    .rc-rental-sm{font-size:11px;color:var(--teal);font-weight:600;}
    .rc-action{margin-top:10px;width:100%;padding:8px;font-size:12px;font-weight:700;background:var(--blue-light);color:var(--blue);border-radius:var(--radius);transition:all .2s;text-align:center;}
    .rc-action:hover{background:var(--blue);color:#fff;}

    /* ── TOAST ── */
    .toast{position:fixed;bottom:32px;left:50%;transform:translateX(-50%) translateY(80px);background:var(--dark);color:#fff;padding:12px 24px;border-radius:var(--radius);font-size:13px;font-weight:600;display:flex;align-items:center;gap:10px;box-shadow:var(--shadow-lg);z-index:999;transition:transform .35s cubic-bezier(.34,1.4,.64,1);pointer-events:none;}
    .toast.show{transform:translateX(-50%) translateY(0);}
    .toast svg{width:16px;height:16px;color:var(--teal);}

    /* ── BACK TO TOP ── */
    .back-top{position:fixed;bottom:28px;right:28px;width:44px;height:44px;background:var(--blue);border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 4px 16px rgba(204,27,27,.4);opacity:0;transform:translateY(10px);transition:all .3s;z-index:90;}
    .back-top.visible{opacity:1;transform:translateY(0);}
    .back-top:hover{background:var(--blue-dark);}
    .back-top svg{width:18px;height:18px;color:#fff;}

    /* ── MOBILE NAV TOGGLE ── */
    .nav-toggle{display:none;width:40px;height:40px;align-items:center;justify-content:center;border-radius:var(--radius-sm);flex-shrink:0;}
    .nav-toggle svg{width:22px;height:22px;color:var(--dark);}

    /* ── RESPONSIVE ── */
    @media(max-width:1200px){.product-main{grid-template-columns:1fr 380px;}}
    @media(max-width:1024px){
      nav,.topbar,.breadcrumb-bar{padding-left:24px;padding-right:24px;}
      .gallery{padding:24px;}
      .product-info{padding:24px;}
      .tabs-bar,.tab-panel,.related-section{padding-left:24px;padding-right:24px;}
      .related-grid{grid-template-columns:repeat(2,1fr);}
      .nav-search{width:200px;}
    }
    @media(max-width:900px){
      .nav-links{display:none;position:absolute;top:100%;left:0;right:0;background:var(--white);flex-direction:column;align-items:stretch;gap:0;padding:8px;border-bottom:1px solid var(--gray-100);box-shadow:var(--shadow-lg);}
      .nav-links.mobile-open{display:flex;}
      .nav-link{padding:12px 14px;border-radius:var(--radius-sm);}
      .nav-toggle{display:flex;}
      .nav-search{display:none;}
    }
    @media(max-width:768px){
      .topbar{display:none;}
      .product-main{grid-template-columns:1fr;}
      .product-info{border-left:none;border-top:1px solid var(--gray-100);}
      .specs-grid{grid-template-columns:1fr;}
      .desc-features{grid-template-columns:1fr;}
      .related-grid{grid-template-columns:repeat(2,1fr);}
      .reviews-header{flex-direction:column;align-items:flex-start;gap:20px;}
      .tabs-bar{gap:4px;}
    }
    @media(max-width:480px){
      .nav-cta .btn-outline:not(:only-child), .nav-cta .btn-nav-outline:not(:only-child) { display: none; }
      nav,.breadcrumb-bar{padding-left:16px;padding-right:16px;}
      .nav-logo img{height:34px;}
      .gallery,.product-info,.tabs-bar,.tab-panel,.related-section{padding-left:16px;padding-right:16px;}
      .pi-name{font-size:20px;}
      .pi-price-main{font-size:26px;}
      .related-grid{grid-template-columns:1fr;}
      .spec-key{width:130px;}
      .rating-big{font-size:40px;}
    }