:root{
    --bg:#0d0d0d;
    --panel:#161616;
    --panel2:#1e1e1e;
    --border:#2a2a2a;
    --accent:#ff5a1f;
    --muted:#9a9a9a;
  }
  *{box-sizing:border-box;}
  html,body{margin:0;padding:0;}
  body{
    background-color:var(--bg);
    color:#ededed;
    font-family:"Helvetica Neue",Arial,sans-serif;
    min-height:100vh;
    display:flex;
    flex-direction:column;
    -webkit-font-smoothing:antialiased;
  }
  a{color:inherit;text-decoration:none;cursor:pointer;}
  button{font-family:inherit;cursor:pointer;}
  img{display:block;max-width:100%;}
  ::-webkit-scrollbar{width:8px;}
  ::-webkit-scrollbar-thumb{background:#333;border-radius:4px;}
  .line-through-price{text-decoration:line-through;color:#6b6b6b;}

  .max-w{max-width:1280px;margin:0 auto;padding:0 24px;}
  .muted{color:var(--muted);}

  /* Header */
  header.site{
    position:sticky;top:0;z-index:40;
    border-bottom:1px solid var(--border);
    background:rgba(13,13,13,0.9);
    backdrop-filter:blur(6px);
  }
  .header-inner{
    max-width:1280px;margin:0 auto;padding:0 24px;
    height:64px;display:flex;align-items:center;justify-content:space-between;
  }
  .logo{font-weight:700;letter-spacing:0.2em;font-size:18px;}
  .logo .accent{color:var(--accent);}
  nav.main-nav{display:none;align-items:center;gap:32px;font-size:14px;color:var(--muted);}
  nav.main-nav a:hover{color:#fff;}
  @media(min-width:768px){nav.main-nav{display:flex;}}
  .header-right{display:flex;align-items:center;gap:20px;font-size:14px;}
  .login-link{display:none;color:var(--muted);}
  @media(min-width:640px){.login-link{display:inline;}}
  .login-link:hover{color:#fff;}
  #cart-toggle-btn{
    background:none;border:none;color:inherit;position:relative;font-size:14px;
    letter-spacing:0.05em;
  }
  #cart-toggle-btn:hover{color:var(--accent);}
  #cart-count{color:var(--accent);margin-left:4px;}

  main{flex:1;}

  /* Hero */
  .hero{position:relative;height:70vh;min-height:480px;overflow:hidden;}
  .hero img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;}
  .hero .overlay{position:absolute;inset:0;background:rgba(0,0,0,0.4);}
  .hero-content{
    position:relative;z-index:10;max-width:1280px;margin:0 auto;height:100%;
    display:flex;flex-direction:column;justify-content:flex-end;padding:0 24px 64px;
  }
  .hero-content h1{font-size:44px;font-weight:700;margin:0;}
  @media(min-width:640px){.hero-content h1{font-size:64px;}}
  .hero-content p{color:var(--muted);margin-top:8px;max-width:420px;}
  .btn-accent{
    margin-top:24px;display:inline-block;background:var(--accent);color:#000;
    width:fit-content;padding:12px 24px;border-radius:6px;font-weight:500;
    border:none;font-size:14px;letter-spacing:0.02em;
  }
  .btn-accent:hover{opacity:0.9;}
  .btn-outline{
    margin-top:24px;display:inline-block;border:1px solid #fff;padding:12px 24px;
    border-radius:6px;background:none;color:#fff;font-size:14px;
  }
  .btn-outline:hover{background:#fff;color:#000;}

  section{padding:64px 24px;}
  .section-inner{max-width:1280px;margin:0 auto;}
  .section-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:32px;}
  .section-head h2{font-size:20px;font-weight:600;letter-spacing:0.02em;margin:0;}
  .section-head a{font-size:14px;color:var(--muted);}
  .section-head a:hover{color:#fff;}

  .grid-products{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
  @media(min-width:768px){.grid-products{grid-template-columns:repeat(4,1fr);}}

  .product-card .thumb{position:relative;aspect-ratio:3/4;border-radius:8px;overflow:hidden;background:var(--panel2);}
  .product-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s;}
  .product-card:hover .thumb img{transform:scale(1.05);}
  .badge-sale{
    position:absolute;top:12px;left:12px;background:var(--accent);color:#000;
    font-size:10px;font-weight:700;padding:4px 8px;border-radius:4px;
  }
  .product-card .info{margin-top:12px;}
  .product-card .info p.name{font-size:14px;font-weight:500;margin:0;}
  .product-card .info .prices{display:flex;gap:8px;margin-top:4px;font-size:14px;}

  /* Category tiles */
  .cat-tiles{display:grid;grid-template-columns:1fr;gap:16px;}
  @media(min-width:768px){.cat-tiles{grid-template-columns:repeat(3,1fr);}}
  .cat-tile{position:relative;height:288px;border-radius:8px;overflow:hidden;display:block;}
  .cat-tile img{width:100%;height:100%;object-fit:cover;transition:transform .5s;}
  .cat-tile:hover img{transform:scale(1.05);}
  .cat-tile .overlay{position:absolute;inset:0;background:rgba(0,0,0,0.3);}
  .cat-tile span{position:absolute;bottom:16px;left:16px;font-weight:500;letter-spacing:0.02em;}

  /* Collection banner */
  .banner{position:relative;height:384px;border-radius:8px;overflow:hidden;display:flex;align-items:center;justify-content:center;text-align:center;}
  .banner img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;}
  .banner .overlay{position:absolute;inset:0;background:rgba(0,0,0,0.5);}
  .banner .content{position:relative;z-index:10;}
  .banner h3{font-size:30px;font-weight:700;margin:0;}
  .banner p{color:var(--muted);margin-top:8px;max-width:420px;margin-left:auto;margin-right:auto;font-size:14px;}

  /* Category page */
  .page-title{font-size:24px;font-weight:600;letter-spacing:0.02em;margin-bottom:32px;text-transform:uppercase;}

  /* Product page */
  .product-page{max-width:1280px;margin:0 auto;padding:48px 24px;display:grid;gap:48px;}
  @media(min-width:768px){.product-page{grid-template-columns:1fr 1fr;}}
  .product-page .main-img{position:relative;aspect-ratio:3/4;border-radius:8px;overflow:hidden;background:var(--panel2);}
  .product-page .main-img img{width:100%;height:100%;object-fit:cover;}
  .product-page h1{font-size:24px;font-weight:600;margin:0;}
  .product-page .prices{display:flex;gap:12px;margin-top:8px;font-size:18px;}
  .product-page .desc{color:var(--muted);margin-top:24px;line-height:1.6;}
  .sizes-label{font-size:14px;color:var(--muted);margin-bottom:8px;}
  .sizes{display:flex;gap:8px;flex-wrap:wrap;}
  .size-btn{
    padding:8px 16px;border-radius:6px;border:1px solid var(--border);
    background:none;color:var(--muted);font-size:14px;
  }
  .size-btn:hover{border-color:#fff;color:#fff;}
  .size-btn.selected{border-color:var(--accent);color:var(--accent);}
  .add-cart-btn{
    margin-top:24px;width:100%;background:var(--accent);color:#000;padding:12px;
    border-radius:6px;font-weight:500;letter-spacing:0.02em;border:none;font-size:14px;
  }
  .add-cart-btn:hover{opacity:0.9;}
  .add-cart-btn:disabled{opacity:0.4;cursor:not-allowed;}
  .stock-note{font-size:12px;color:var(--muted);margin-top:24px;}

  /* Cart drawer */
  #cart-overlay{
    position:fixed;inset:0;background:rgba(0,0,0,0.6);z-index:50;display:none;
  }
  #cart-drawer{
    position:fixed;top:0;right:0;height:100%;width:100%;max-width:420px;
    background:var(--panel);border-left:1px solid var(--border);z-index:51;
    transform:translateX(100%);transition:transform .3s;display:flex;flex-direction:column;
  }
  #cart-drawer.open{transform:translateX(0);}
  #cart-overlay.open{display:block;}
  .cart-header{
    display:flex;align-items:center;justify-content:space-between;
    padding:0 24px;height:64px;border-bottom:1px solid var(--border);flex-shrink:0;
  }
  .cart-header h2{font-size:16px;font-weight:600;letter-spacing:0.02em;margin:0;}
  #cart-close-btn{background:none;border:none;color:var(--muted);font-size:16px;}
  #cart-close-btn:hover{color:#fff;}
  .cart-items{padding:24px;display:flex;flex-direction:column;gap:20px;overflow-y:auto;flex:1;}
  .cart-item{display:flex;gap:16px;}
  .cart-item .thumb{width:80px;height:96px;flex-shrink:0;border-radius:4px;overflow:hidden;background:var(--panel2);}
  .cart-item .thumb img{width:100%;height:100%;object-fit:cover;}
  .cart-item .details{flex:1;}
  .cart-item .details p.name{font-size:14px;font-weight:500;margin:0;}
  .cart-item .details p.size{font-size:12px;color:var(--muted);margin:2px 0 0;}
  .qty-controls{display:flex;align-items:center;gap:8px;margin-top:8px;}
  .qty-btn{width:24px;height:24px;border:1px solid var(--border);border-radius:4px;background:none;color:inherit;font-size:12px;}
  .cart-item .right-col{text-align:right;}
  .cart-item .right-col p{font-size:14px;margin:0;}
  .remove-btn{background:none;border:none;font-size:12px;color:var(--muted);margin-top:8px;}
  .remove-btn:hover{color:var(--accent);}
  .cart-footer{border-top:1px solid var(--border);padding:24px;background:var(--panel);flex-shrink:0;}
  .subtotal-row{display:flex;justify-content:space-between;margin-bottom:16px;font-size:14px;}
  .subtotal-row .amount{font-weight:600;}
  #checkout-link{
    display:block;text-align:center;width:100%;padding:12px;border-radius:6px;
    font-weight:500;letter-spacing:0.02em;background:var(--accent);color:#000;border:none;font-size:14px;
  }
  #checkout-link.disabled{background:var(--panel2);color:var(--muted);pointer-events:none;}

  /* Checkout */
  .checkout-page{max-width:1024px;margin:0 auto;padding:48px 24px;display:grid;gap:48px;}
  @media(min-width:768px){.checkout-page{grid-template-columns:1fr 1fr;}}
  .checkout-page h1{font-size:20px;font-weight:600;margin-bottom:16px;}
  .checkout-page h2{font-size:18px;font-weight:600;margin-bottom:16px;}
  .checkout-page form{display:flex;flex-direction:column;gap:16px;}
  .checkout-page input{
    width:100%;background:var(--panel2);border:1px solid var(--border);border-radius:6px;
    padding:12px 16px;font-size:14px;color:inherit;outline:none;font-family:inherit;
  }
  .checkout-page input:focus{border-color:var(--accent);}
  .checkout-page .error{color:#ef4444;font-size:14px;}
  .checkout-page .submit-btn{
    width:100%;background:var(--accent);color:#000;padding:12px;border-radius:6px;
    font-weight:500;letter-spacing:0.02em;border:none;font-size:14px;
  }
  .checkout-page .submit-btn:hover{opacity:0.9;}
  .checkout-page .submit-btn:disabled{opacity:0.5;}
  .checkout-page .hint{font-size:12px;color:var(--muted);}
  .summary-row{display:flex;justify-content:space-between;font-size:14px;margin-bottom:12px;}
  .summary-total{border-top:1px solid var(--border);margin-top:16px;padding-top:16px;display:flex;justify-content:space-between;font-weight:600;}

  .center-page{max-width:576px;margin:0 auto;padding:96px 24px;text-align:center;}
  .center-page h1{font-size:24px;font-weight:600;margin-bottom:16px;}

  /* Footer */
  footer.site{border-top:1px solid var(--border);margin-top:80px;}
  .footer-inner{
    max-width:1280px;margin:0 auto;padding:40px 24px;
    display:flex;flex-direction:column;gap:24px;font-size:12px;color:var(--muted);
  }
  @media(min-width:640px){.footer-inner{flex-direction:row;justify-content:space-between;}}
  .footer-inner .col{display:flex;gap:24px;flex-wrap:wrap;}
  .footer-bottom{text-align:center;font-size:10px;color:var(--muted);padding-bottom:24px;}