/* ========== Base / Reset ========== */
:root{
    --bg:#f6f7f9;
    --surface:#ffffff;
    --text:#101828;
    --muted:#667085;
    --line:#e4e7ec;
    --brand:#0b74de;
    --brand2:#1f2a44;
    --good:#12b76a;
    --warn:#f79009;
    --danger:#f04438;
    --shadow: 0 10px 30px rgba(16,24,40,.08);
    --radius: 16px;
    --radius2: 22px;
    --container: 1200px;
  }
  
  *{box-sizing:border-box}
  html,body{height:100%}
  body{
    margin:0;
    font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
    color:var(--text);
    background:var(--bg);
  }
  a{color:inherit; text-decoration:none}
  img{max-width:100%; display:block}
  button,input,select{font:inherit}
  .visually-hidden{
    position:absolute !important;
    height:1px; width:1px;
    overflow:hidden; clip:rect(1px,1px,1px,1px);
    white-space:nowrap;
  }
  
  /* ========== Helpers ========== */
  .container{max-width:var(--container); margin:0 auto; padding:0 16px}
  .row{display:flex; gap:16px}
  .between{justify-content:space-between; align-items:baseline}
  .align-center{align-items:center}
  .mt-12{margin-top:12px}
  .mt-14{margin-top:14px}
  .mt-18{margin-top:18px}
  .mb-8{margin-bottom:8px}
  .stack-12{display:flex; flex-direction:column; gap:12px}
  .stack-16{display:flex; flex-direction:column; gap:16px}
  .muted{color:var(--muted)}
  .badge{
    display:inline-flex; align-items:center; gap:8px;
    padding:6px 10px; border-radius:999px;
    background:#eef4ff; color:#175cd3; font-weight:700; font-size:12px;
  }
  .pill{
    display:inline-flex; align-items:center; gap:8px;
    padding:10px 12px; border:1px solid var(--line);
    border-radius:999px; background:var(--surface);
  }
  .kbd{
    font-size:12px; padding:2px 6px; border-radius:6px;
    border:1px solid var(--line); background:#fff;
    color:var(--muted);
  }
  
  /* ========== Top Promo Strip ========== */
  .promo{
    background:linear-gradient(90deg, #0b74de, #2e90fa);
    color:#fff;
    font-size:13px;
  }
  .promo .container{
    display:flex; justify-content:space-between; align-items:center;
    padding:10px 16px;
  }
  .promo a{ text-decoration:underline }
  
  /* ========== Header ========== */
  .site-header{
    position:sticky; top:0; z-index:50;
    background:var(--surface);
    border-bottom:1px solid var(--line);
  }
  .header-grid{
    display:grid;
    grid-template-columns: 240px 1fr auto;
    gap:14px;
    align-items:center;
    padding:14px 0;
  }
  .brand{
    display:flex; align-items:center; gap:10px;
  }
  .brand img{width:38px; height:38px}
  .brand-name{font-weight:900; letter-spacing:.2px}
  .brand-sub{font-size:12px; color:var(--muted); margin-top:2px}
  
  .search{
    display:flex; align-items:center;
    background:var(--bg);
    border:1px solid var(--line);
    border-radius:999px;
    padding:8px;
    gap:8px;
  }
  .search select{
    border:none; background:transparent; color:var(--muted);
    padding:6px 10px; border-right:1px solid var(--line);
  }
  .search input{
    border:none; background:transparent; width:100%;
    padding:8px 10px; outline:none;
  }
  .search button{
    border:none; background:var(--brand);
    color:#fff; font-weight:900;
    padding:10px 16px; border-radius:999px;
    cursor:pointer;
  }
  .header-actions{display:flex; align-items:center; gap:10px}
  .icon-btn{
    position:relative;
    display:inline-flex; align-items:center; gap:8px;
    padding:10px 12px;
    border:1px solid var(--line);
    background:var(--surface);
    border-radius:999px;
    cursor:pointer;
  }
  .icon-dot{
    position:absolute; right:6px; top:6px;
    width:10px; height:10px; border-radius:999px;
    background:var(--danger);
    box-shadow:0 0 0 3px #fff;
  }
  
  /* Trending searches under header */
  .trending{
    border-top:1px solid var(--line);
    background:#fff;
  }
  .trending .container{
    display:flex; flex-wrap:wrap; gap:10px;
    padding:10px 0;
    align-items:center;
  }
  .trending strong{
    font-size:13px;
    color:#344054;
    margin-right:4px;
  }
  .trending a{
    padding:8px 10px;
    border-radius:999px;
    background:#f2f4f7;
    border:1px solid var(--line);
    font-size:13px;
  }
  .trending a:hover{ background:#fff }
  
  /* ========== Nav Bar ========== */
  .navbar{
    border-top:1px solid var(--line);
    background:#fff;
  }
  .navbar .container{
    display:flex; align-items:center; justify-content:space-between;
    padding:10px 0;
  }
  .nav-links{display:flex; gap:12px; flex-wrap:wrap}
  .nav-links a{
    padding:8px 10px; border-radius:999px;
    color:var(--brand2);
  }
  .nav-links a:hover{ background:#f2f4f7 }
  .nav-right{display:flex; align-items:center; gap:10px; color:var(--muted); font-size:13px}
  
  /* ========== Breadcrumb ========== */
  .breadcrumb{
    display:flex; flex-wrap:wrap; gap:8px;
    align-items:center;
    padding:16px 0 8px;
    color:var(--muted);
    font-size:13px;
  }
  .breadcrumb a{ color:#344054 }
  .breadcrumb span{ color:var(--muted) }
  
  /* ========== Main Grid ========== */
  .main-grid{
    display:grid;
    grid-template-columns: 260px 1fr;
    gap:18px;
    padding:10px 0 28px;
  }
  .sidebar{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius);
    box-shadow:var(--shadow);
    padding:14px;
    height:fit-content;
  }
  .sidebar h2{
    font-size:14px; margin:4px 0 12px;
    color:#344054; letter-spacing:.3px;
    text-transform:uppercase;
  }
  .cat{display:flex; flex-direction:column; gap:6px}
  .cat a{
    display:flex; justify-content:space-between; align-items:center;
    padding:10px 10px;
    border-radius:12px;
    border:1px solid transparent;
    color:#101828;
  }
  .cat a:hover{background:#f2f4f7; border-color:var(--line)}
  .cat small{color:var(--muted)}
  
  .card{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius);
    box-shadow:var(--shadow);
    padding:14px;
  }
  .card h3{ margin:0 0 6px; font-size:14px }
  .card p{ margin:0; color:var(--muted); font-size:13px; line-height:1.4 }
  
  /* Sidebar filters (category page) */
  .filter-group{display:flex; flex-direction:column; gap:10px}
  .filter{
    border:1px solid var(--line);
    border-radius:14px;
    padding:12px;
    background:#fff;
  }
  .filter h3{
    margin:0 0 10px;
    font-size:13px;
    color:#344054;
    letter-spacing:.2px;
  }
  .filter label{
    display:flex; gap:10px; align-items:center;
    font-size:13px;
    color:#344054;
    padding:6px 0;
  }
  .filter input[type="checkbox"]{width:16px; height:16px}
  .filter .range{
    display:flex; gap:10px;
  }
  .filter .range input{
    width:100%;
    border:1px solid var(--line);
    border-radius:12px;
    padding:10px 12px;
    outline:none;
  }
  
  /* ========== Content ========== */
  .content{display:flex; flex-direction:column; gap:16px}
  .hero{
    position:relative;
    border-radius:var(--radius2);
    overflow:hidden;
    background: linear-gradient(135deg, #0b74de, #84caff);
    box-shadow:var(--shadow);
    min-height:220px;
  }
  .hero-inner{
    display:grid;
    grid-template-columns: 1.2fr .8fr;
    gap:12px;
    padding:22px;
    align-items:center;
    color:#fff;
  }
  .hero h1{margin:0; font-size:30px; line-height:1.15}
  .hero p{margin:10px 0 14px; max-width:52ch; color:rgba(255,255,255,.92)}
  .hero-cta{display:inline-flex; gap:10px; align-items:center}
  
  .btn{
    display:inline-flex; align-items:center; justify-content:center;
    gap:8px;
    padding:12px 14px;
    border-radius:12px;
    border:1px solid transparent;
    cursor:pointer;
    font-weight:900;
  }
  .btn.primary{background:#fff; color:#0b74de}
  .btn.ghost{background:transparent; color:#fff; border-color:rgba(255,255,255,.35)}
  .btn.primary:hover{filter:brightness(.95)}
  .btn.ghost:hover{background:rgba(255,255,255,.1)}
  
  .hero-visual{
    background:rgba(255,255,255,.15);
    border:1px solid rgba(255,255,255,.25);
    border-radius:18px;
    overflow:hidden;
    box-shadow:0 10px 30px rgba(0,0,0,.08);
  }
  .hero-visual img{width:100%; height:auto}
  
  .info-row{
    display:grid;
    grid-template-columns: repeat(3, 1fr);
    gap:12px;
  }
  
  /* ========== Deals Strip ========== */
  .deals-strip{
    display:grid;
    grid-template-columns: repeat(3, 1fr);
    gap:12px;
  }
  .deal{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius);
    box-shadow:var(--shadow);
    padding:14px;
    display:flex;
    flex-direction:column;
    gap:10px;
  }
  .deal-top{display:flex; justify-content:space-between; align-items:center}
  .deal strong{font-size:14px}
  .deal p{margin:0; color:var(--muted); font-size:13px; line-height:1.4}
  .deal a{
    margin-top:auto;
    display:inline-flex;
    justify-content:center;
    padding:10px 12px;
    border-radius:12px;
    border:1px solid var(--line);
    font-weight:900;
    background:#fff;
  }
  .deal a:hover{background:#f2f4f7}
  
  /* ========== Product List (Tableless) ========== */
  .section-head{
    display:flex; align-items:flex-end; justify-content:space-between;
    gap:12px;
  }
  .section-head h2{ margin:0; font-size:18px }
  .section-head .filters{
    display:flex; gap:10px; flex-wrap:wrap;
    color:var(--muted);
  }
  .filters .pill select{ border:none; outline:none; background:transparent }
  
  .product-grid{
    display:grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap:12px;
  }
  .product{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius);
    box-shadow:var(--shadow);
    overflow:hidden;
    display:flex;
    flex-direction:column;
  }
  .product .thumb{
    aspect-ratio: 4 / 3;
    background:#f2f4f7;
    display:flex; align-items:center; justify-content:center;
  }
  .product .thumb img{
    width:100%; height:100%;
    object-fit:cover;
  }
  .product .body{
    padding:12px;
    display:flex; flex-direction:column; gap:8px;
    flex:1;
  }
  .product .title{font-weight:900; line-height:1.25}
  .product .meta{
    display:flex; justify-content:space-between; align-items:center;
    color:var(--muted); font-size:13px;
  }
  .price{font-weight:950; font-size:18px}
  .price small{font-size:12px; color:var(--muted); font-weight:800}
  .product .actions{display:flex; gap:10px}
  .product .actions a{
    flex:1;
    border:1px solid var(--line);
    border-radius:12px;
    padding:10px 12px;
    text-align:center;
    font-weight:900;
    background:#fff;
  }
  .product .actions a:hover{ background:#f2f4f7 }
  .product .actions button{
    flex:1;
    border:none;
    border-radius:12px;
    padding:10px 12px;
    font-weight:950;
    background:var(--brand);
    color:#fff;
    cursor:pointer;
  }
  .product .actions button:hover{ filter:brightness(.95) }
  
  /* ========== Shopping List Overlay (Hover + Click on mobile) ========== */
  .cart-wrap{ position:relative }
  #cartToggle{ display:none }
  
  .cart-panel{
    position:absolute;
    right:0;
    top:52px;
    width:min(360px, calc(100vw - 32px));
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius);
    box-shadow: var(--shadow);
    overflow:hidden;
    display:none;
    z-index:80;
  }
  .cart-head{
    padding:12px 14px;
    display:flex; justify-content:space-between; align-items:center;
    border-bottom:1px solid var(--line);
    background:#fff;
  }
  .cart-head strong{ font-size:14px }
  .cart-head span{ color:var(--muted); font-size:12px }
  .cart-body{
    padding:12px 14px;
    display:flex; flex-direction:column; gap:10px;
  }
  .cart-item{
    display:grid;
    grid-template-columns: 1fr 74px 64px;
    gap:10px;
    align-items:center;
    padding:10px;
    border:1px solid var(--line);
    border-radius:12px;
    background:#fff;
  }
  .cart-item .name{ font-weight:900; font-size:13px; line-height:1.2 }
  .cart-item .sub{ color:var(--muted); font-size:12px; margin-top:2px }
  .cart-item input{
    width:100%;
    padding:8px 10px;
    border:1px solid var(--line);
    border-radius:10px;
    outline:none;
  }
  .cart-item .amt{ text-align:right; font-weight:950 }
  .cart-foot{
    padding:12px 14px;
    border-top:1px solid var(--line);
    display:flex; flex-direction:column; gap:10px;
    background:#fff;
  }
  .cart-foot .sum{
    display:flex; justify-content:space-between; align-items:center;
    color:#344054;
  }
  .cart-foot .sum strong{ font-size:16px }
  .cart-foot a.checkout{
    display:flex; justify-content:center; align-items:center;
    padding:12px 14px;
    border-radius:12px;
    background:var(--good);
    color:#fff;
    font-weight:950;
  }
  .cart-foot a.checkout:hover{ filter:brightness(.96) }
  
  /* Hover (desktop) */
  .cart-wrap:hover .cart-panel{ display:block }
  
  /* Click toggle (mobile) */
  #cartToggle:checked ~ .cart-panel{ display:block }
  
  /* ========== Product Page ========== */
  .product-page{
    display:grid;
    grid-template-columns: 1.1fr .9fr;
    gap:16px;
    align-items:start;
  }
  .gallery{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius);
    box-shadow:var(--shadow);
    padding:14px;
  }
  .gallery .main-img{
    border-radius:14px;
    overflow:hidden;
    aspect-ratio: 4/3;
    background:#f2f4f7;
  }
  .gallery .thumbs{
    margin-top:12px;
    display:grid;
    grid-template-columns: repeat(4, 1fr);
    gap:10px;
  }
  .gallery .thumbs img{
    border-radius:12px;
    aspect-ratio: 1/1;
    object-fit:cover;
    border:1px solid var(--line);
  }
  .details{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius);
    box-shadow:var(--shadow);
    padding:16px;
  }
  .details h1{ margin:0 0 8px; font-size:22px; line-height:1.2 }
  .details .rating{
    display:flex; gap:10px; align-items:center;
    color:var(--muted); font-size:13px; margin-bottom:10px;
  }
  .details .price-row{
    display:flex; justify-content:space-between; align-items:flex-end;
    border-top:1px dashed var(--line);
    border-bottom:1px dashed var(--line);
    padding:12px 0;
    margin:12px 0;
  }
  .details .desc{ color:#344054; line-height:1.55 }
  .details ul{ margin:10px 0 0; padding-left:18px; color:#344054 }
  .buy-row{ display:flex; gap:10px; margin-top:14px }
  .buy-row input{
    width:90px;
    padding:10px 12px;
    border:1px solid var(--line);
    border-radius:12px;
  }
  .buy-row button{
    flex:1;
    border:none;
    border-radius:12px;
    padding:12px 14px;
    font-weight:950;
    background:var(--brand);
    color:#fff;
    cursor:pointer;
  }
  .buy-row button:hover{ filter:brightness(.96) }
  
  /* Reviews / QA blocks */
  .block-title{
    margin:0 0 8px;
    font-size:15px;
  }
  .review{
    border:1px solid var(--line);
    border-radius:14px;
    padding:12px;
    background:#fff;
    display:flex;
    flex-direction:column;
    gap:6px;
  }
  .review .top{
    display:flex;
    justify-content:space-between;
    align-items:center;
    color:#344054;
    font-size:13px;
  }
  .review p{
    margin:0;
    color:#344054;
    font-size:13px;
    line-height:1.5;
  }
  
  /* ========== Footer ========== */
  .site-footer{
    margin-top:28px;
    border-top:1px solid var(--line);
    background:#fff;
  }
  .footer-grid{
    display:grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap:16px;
    padding:18px 0;
  }
  .site-footer h4{ margin:0 0 8px; font-size:14px }
  .site-footer a{ color:var(--muted) }
  .site-footer a:hover{ color:#344054; text-decoration:underline }
  .site-footer p{ color:var(--muted); margin:0; line-height:1.5; font-size:13px }
  .footer-app{
    display:flex;
    gap:10px;
    margin-top:10px;
  }
  .app-badge{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    padding:10px 12px;
    border:1px solid var(--line);
    border-radius:12px;
    background:#fff;
    font-weight:900;
    font-size:12px;
    color:#344054;
  }
  .app-badge:hover{background:#f2f4f7}
  .copy{
    border-top:1px solid var(--line);
    padding:12px 0;
    color:var(--muted);
    font-size:12px;
  }
  
  /* ========== Responsive ========== */
  @media (max-width: 1100px){
    .product-grid{ grid-template-columns: repeat(3, 1fr); }
  }
  @media (max-width: 900px){
    .header-grid{ grid-template-columns: 220px 1fr; }
    .header-actions{ justify-content:flex-end }
    .navbar .container{ flex-direction:column; align-items:flex-start; gap:8px }
    .trending strong{width:100%}
    .main-grid{ grid-template-columns: 1fr; }
    .sidebar{ order:2 }
    .content{ order:1 }
    .product-grid{ grid-template-columns: repeat(2, 1fr); }
    .hero-inner{ grid-template-columns: 1fr; }
    .info-row{ grid-template-columns: 1fr; }
    .deals-strip{ grid-template-columns: 1fr; }
    .product-page{ grid-template-columns: 1fr; }
    /* Touch screens: prefer click toggle, avoid hover */
    .cart-wrap:hover .cart-panel{ display:none; }
  }
  @media (max-width: 520px){
    .product-grid{ grid-template-columns: 1fr; }
    .search select{ display:none }
  }