:root{
  --red:#ec1c24; --red-d:#c8121a; --ink:#161616; --ink-2:#3a3a3a;
  --line:#e6e6e8; --bg:#ffffff; --soft:#f5f5f6; --muted:#8a8a90;
  --shadow:0 1px 3px rgba(0,0,0,.06),0 8px 24px rgba(0,0,0,.05);
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  font-family:'Noto Sans Thai',-apple-system,'Segoe UI',system-ui,sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.5;-webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{text-decoration:none;color:inherit}

/* header */
header{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.92);backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line)}
.head-in{max-width:1180px;margin:0 auto;padding:10px 16px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.brand{display:inline-flex;align-items:center;gap:10px}
.brand-ico{height:36px;width:36px;object-fit:contain}
.brand-tx{display:flex;flex-direction:column;line-height:1}
.brand-tx b{font-size:20px;font-weight:800;letter-spacing:.02em;color:var(--ink)}
.brand-tx i{font-size:9.5px;font-weight:600;letter-spacing:.28em;color:var(--muted);font-style:normal;margin-top:3px}
.head-right{display:flex;align-items:center;gap:10px;flex-shrink:0}
.head-cta{display:inline-flex;align-items:center;gap:7px;font-weight:600;font-size:14px;color:#fff;background:var(--red);padding:9px 16px;border-radius:999px;white-space:nowrap;transition:background .15s}
.head-cta:active{background:var(--red-d)}

/* hero */
.hero{background:var(--ink);color:#fff;overflow:hidden;position:relative}
.hero::after{content:"";position:absolute;right:-140px;top:-140px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(236,28,36,.35),transparent 62%)}
.hero-in{max-width:1180px;margin:0 auto;padding:40px 16px 44px;position:relative;z-index:1}
.hero .eyebrow{color:var(--red);font-weight:700;letter-spacing:.14em;font-size:12px;text-transform:uppercase;margin-bottom:12px}
.hero h1{font-size:30px;font-weight:800;line-height:1.18;letter-spacing:-.01em;max-width:16ch}
.hero p{margin-top:14px;color:#c7c7cc;font-size:15px;max-width:44ch}
.hero-actions{margin-top:24px;display:flex;gap:10px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:15px;padding:12px 22px;border-radius:999px;cursor:pointer;border:0;transition:transform .12s,background .15s}
.btn:active{transform:translateY(1px)}
.btn-red{background:var(--red);color:#fff}
.btn-red:active{background:var(--red-d)}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.28)}
.hero-stats{margin-top:30px;display:flex;gap:28px;flex-wrap:wrap}
.hero-stats .s b{display:block;font-size:22px;font-weight:800}
.hero-stats .s span{font-size:12.5px;color:#9a9aa0}

/* category bar */
.catbar{position:sticky;top:55px;z-index:30;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.catbar-in{max-width:1180px;margin:0 auto;padding:11px 10px;display:flex;gap:8px;overflow-x:auto;scrollbar-width:none}
.catbar-in::-webkit-scrollbar{display:none}
.chip{flex:0 0 auto;font-size:13.5px;font-weight:500;color:var(--ink-2);background:var(--soft);border:1px solid transparent;padding:8px 15px;border-radius:999px;cursor:pointer;white-space:nowrap;transition:.15s}
.chip.on{background:var(--ink);color:#fff}
.chip:not(.on):active{border-color:var(--line)}

/* grid */
.wrap{max-width:1180px;margin:0 auto;padding:22px 14px 60px}
.searchbar{margin-bottom:16px}
.search-inp{width:100%;padding:12px 16px 12px 42px;border:1px solid var(--line);border-radius:12px;font-size:15px;font-family:inherit;color:var(--ink);outline:none;transition:.15s;background:var(--soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' fill='none' stroke='%238a8a90' stroke-width='2' stroke-linecap='round'%3E%3Ccircle cx='8' cy='8' r='6'/%3E%3Cpath d='M13 13l4 4'/%3E%3C/svg%3E") no-repeat 15px center}
.search-inp:focus{border-color:var(--ink);background-color:#fff}
.sec-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:16px}
.sec-head h2{font-size:19px;font-weight:700}
.sec-head .count{font-size:13px;color:var(--muted)}
.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.card{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;display:flex;flex-direction:column;transition:transform .14s,box-shadow .14s;cursor:pointer}
.card:active{transform:translateY(-2px);box-shadow:var(--shadow)}
.thumb{position:relative;aspect-ratio:1/1;background:var(--soft);overflow:hidden}
.thumb img{width:100%;height:100%;object-fit:cover}
.badge{position:absolute;top:9px;left:9px;font-size:11px;font-weight:700;padding:4px 9px;border-radius:6px;letter-spacing:.02em}
.badge.hot{background:var(--red);color:#fff}
.oos .thumb::after{content:"สินค้าหมด";position:absolute;inset:0;background:rgba(255,255,255,.72);color:var(--ink);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;backdrop-filter:grayscale(1)}
.oos .thumb img{filter:grayscale(.9);opacity:.5}
.info{padding:12px 12px 14px;display:flex;flex-direction:column;gap:3px;flex:1}
.name{font-size:14px;font-weight:600;line-height:1.35;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:38px}
.code{font-size:11.5px;color:var(--muted);font-weight:500}
.price-row{margin-top:8px;display:flex;align-items:flex-end;justify-content:space-between;gap:6px}
.price{font-size:19px;font-weight:800;color:var(--ink);letter-spacing:-.01em}
.price .cur{font-size:13px;font-weight:700;margin-right:1px}
.price .unit{font-size:11.5px;font-weight:500;color:var(--muted);margin-left:3px}
.ask{font-size:14.5px;font-weight:700;color:var(--red)}
.buy{border:0;background:var(--soft);color:var(--ink);font-weight:600;font-size:12.5px;padding:7px 12px;border-radius:9px;cursor:pointer;white-space:nowrap;transition:.15s}
.buy:active{background:#eaeaec}
.buy.red{background:var(--red);color:#fff}
.empty{text-align:center;color:var(--muted);padding:50px 20px;font-size:14px}
.stk{font-size:11px;color:var(--muted);margin-top:4px}
.stk.low{color:var(--red);font-weight:600}

/* pagination */
.pager{display:flex;align-items:center;justify-content:center;gap:6px;padding:28px 0 8px;flex-wrap:wrap}
.pg-btn{min-width:38px;height:38px;padding:0 10px;border-radius:10px;border:1px solid var(--line);background:var(--soft);color:var(--ink);font-family:inherit;font-size:14px;font-weight:600;cursor:pointer;transition:.15s;line-height:1}
.pg-btn.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.pg-btn:not(.on):not(:disabled):hover{border-color:var(--ink-2)}
.pg-btn:disabled{opacity:.35;cursor:default}
.pg-dot{color:var(--muted);font-size:15px;padding:0 2px;line-height:38px}

/* price note + footer */
.pricenote{max-width:1180px;margin:0 auto;padding:0 14px}
.pricenote .box{background:var(--soft);border:1px solid var(--line);border-radius:12px;padding:13px 16px;font-size:12.5px;color:var(--ink-2);display:flex;gap:9px;align-items:flex-start}
.pricenote .box b{color:var(--ink)}
footer{background:var(--ink);color:#c7c7cc;margin-top:44px}
.foot-in{max-width:1180px;margin:0 auto;padding:34px 16px 40px;display:grid;gap:22px}
.foot-in h4{color:#fff;font-size:14px;font-weight:700;margin-bottom:8px}
.foot-in p{font-size:13px;line-height:1.7}
.foot-cta{display:inline-flex;align-items:center;gap:8px;margin-top:8px;background:var(--red);color:#fff;font-weight:600;font-size:14px;padding:11px 20px;border-radius:999px}
.foot-brand .brand-tx b{color:#fff}
.foot-brand{margin-bottom:6px}
.copy{border-top:1px solid #2a2a2a;text-align:center;font-size:12px;color:#6a6a70;padding:16px}

/* product detail: desc + spec table */
.pd-desc{font-size:14px;color:var(--ink-2);line-height:1.65;border-top:1px solid var(--line);padding-top:14px;margin-top:14px;white-space:pre-line}
.pd-specs{width:100%;border-collapse:collapse;margin-top:14px;border-top:1px solid var(--line)}
.pd-specs th,.pd-specs td{padding:9px 12px;font-size:13.5px;text-align:left;border-bottom:1px solid var(--line)}
.pd-specs th{width:38%;font-weight:600;color:var(--muted);white-space:nowrap}
.pd-specs td{font-weight:500;color:var(--ink)}
.pd-specs tr:last-child th,.pd-specs tr:last-child td{border-bottom:none}

/* to-top button */
.to-top{position:fixed;right:16px;bottom:18px;z-index:50;width:46px;height:46px;border-radius:50%;border:0;background:var(--red);color:#fff;font-size:22px;line-height:1;cursor:pointer;box-shadow:0 4px 14px rgba(0,0,0,.25);display:none;align-items:center;justify-content:center}
.to-top.show{display:flex}
.to-top:active{background:var(--red-d)}

/* badge รูปหลายรูป บนการ์ด */
.badge-img{position:absolute;top:9px;right:9px;font-size:11px;font-weight:700;padding:3px 8px;border-radius:6px;background:rgba(0,0,0,.55);color:#fff;pointer-events:none}

/* carousel ใน popup */
.pm-img-wrap{position:relative}
.pm-nav{position:absolute;top:50%;transform:translateY(-50%);background:rgba(0,0,0,.4);color:#fff;border:0;width:34px;height:34px;border-radius:50%;font-size:24px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center;z-index:2;padding:0}
.pm-prev{left:8px}
.pm-next{right:8px}
.pm-nav:active{background:rgba(0,0,0,.65)}
.pm-dots{position:absolute;bottom:8px;left:50%;transform:translateX(-50%);display:flex;gap:6px;pointer-events:none}
.pm-dot{width:7px;height:7px;border-radius:50%;background:rgba(255,255,255,.45)}
.pm-dot.on{background:#fff}

/* badge ชุด + popup ส่วนประกอบ */
.badge.set{background:var(--ink);color:#fff}
.setm{position:fixed;inset:0;z-index:70;background:rgba(0,0,0,.6);display:none;align-items:center;justify-content:center;padding:18px}
.setm.on{display:flex}
.setm-box{background:#fff;border-radius:18px;max-width:420px;width:100%;max-height:88vh;overflow-y:auto;position:relative}
.setm-x{position:absolute;top:10px;right:12px;background:rgba(0,0,0,.5);color:#fff;border:0;width:30px;height:30px;border-radius:50%;font-size:20px;line-height:1;cursor:pointer;z-index:2}
.setm-img{background:var(--soft);aspect-ratio:4/3;display:flex;align-items:center;justify-content:center;border-radius:18px 18px 0 0}
.setm-img img{max-width:100%;max-height:100%;object-fit:contain;mix-blend-mode:multiply}
.setm-body{padding:16px 18px 20px}
.setm-body h3{font-size:17px;font-weight:700;line-height:1.35}
.setm-code{font-size:12px;color:var(--muted);margin-top:2px}
.setm-price{font-size:20px;font-weight:800;margin-top:8px}
.setm-price .cur{font-size:14px;margin-right:1px}
.setm-price .unit{font-size:12px;color:var(--muted);font-weight:500}
.setm-label{margin-top:16px;font-size:13px;font-weight:700;color:var(--red);border-top:1px solid var(--line);padding-top:14px}
.setm-comps{list-style:none;margin:8px 0 0;padding:0;display:flex;flex-direction:column;gap:7px}
.setm-comps li{font-size:14px;padding:9px 11px;background:var(--soft);border-radius:9px;line-height:1.4}
.setm-comps b{color:var(--ink)}
.setm-comps .qty{color:var(--red);font-weight:700}
.setm-buy{display:block;text-align:center;margin-top:16px;background:var(--red);color:#fff;font-weight:600;padding:12px;border-radius:10px}

/* cart button in header */
.cart-btn{position:relative;background:none;border:1px solid var(--line);border-radius:999px;width:44px;height:44px;display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--ink);transition:.15s;flex-shrink:0}
.cart-btn:active{background:var(--soft)}
.cart-badge{position:absolute;top:-4px;right:-4px;background:var(--red);color:#fff;font-size:10px;font-weight:700;min-width:18px;height:18px;border-radius:999px;display:flex;align-items:center;justify-content:center;padding:0 4px;pointer-events:none}
.cart-badge.hidden{display:none}

/* cart drawer */
.cart-overlay{position:fixed;inset:0;z-index:80;background:rgba(0,0,0,.45);opacity:0;transition:opacity .25s}
.cart-overlay:not(.hidden){opacity:1}
.cart-overlay.hidden{display:none}
.cart-drawer{position:fixed;top:0;right:0;bottom:0;z-index:90;width:min(380px,100vw);background:#fff;box-shadow:-4px 0 28px rgba(0,0,0,.12);display:flex;flex-direction:column;transform:translateX(100%);transition:transform .28s cubic-bezier(.4,0,.2,1)}
.cart-drawer.open{transform:translateX(0)}
.cart-head{display:flex;align-items:center;justify-content:space-between;padding:16px 18px;border-bottom:1px solid var(--line)}
.cart-head h3{font-size:16px;font-weight:700}
.cart-badge-head{background:var(--red);color:#fff;font-size:11px;font-weight:700;min-width:20px;height:20px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;padding:0 5px;margin-left:6px}
.cart-close{background:none;border:0;font-size:24px;color:var(--muted);cursor:pointer;line-height:1;padding:2px 6px}
.cart-close:hover{color:var(--ink)}
.cart-body{flex:1;overflow-y:auto;padding:12px 16px;display:flex;flex-direction:column;gap:10px}
.cart-empty{text-align:center;color:var(--muted);padding:48px 0;font-size:14px}
.cart-item{display:flex;gap:12px;align-items:center;padding:10px;background:var(--soft);border-radius:12px}
.cart-item-img{width:58px;height:58px;object-fit:cover;border-radius:8px;background:#e9e9eb;flex-shrink:0}
.cart-item-img-ph{width:58px;height:58px;border-radius:8px;background:#e9e9eb;flex-shrink:0;display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:11px}
.cart-item-info{flex:1;min-width:0}
.cart-item-name{font-size:13px;font-weight:600;line-height:1.3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cart-item-code{font-size:11px;color:var(--muted);margin-top:2px}
.cart-item-price{font-size:13.5px;font-weight:700;color:var(--red);margin-top:4px}
.cart-item-ctrl{display:flex;align-items:center;gap:6px;margin-top:8px}
.qty-btn{width:26px;height:26px;border-radius:8px;border:1px solid var(--line);background:#fff;color:var(--ink);font-size:16px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center;font-weight:600}
.qty-val{min-width:26px;text-align:center;font-size:14px;font-weight:600}
.cart-rm{margin-left:auto;background:none;border:0;color:var(--muted);font-size:18px;cursor:pointer;padding:2px 5px;line-height:1}
.cart-rm:hover{color:var(--red)}
.cart-foot{padding:14px 16px;border-top:1px solid var(--line)}
.cart-total{font-size:14px;color:var(--ink-2);margin-bottom:12px}
.cart-total b{font-size:18px;font-weight:800;color:var(--ink)}
.btn-inquiry{display:block;width:100%;background:var(--red);color:#fff;font-weight:700;font-size:15px;padding:13px;border-radius:12px;border:0;cursor:pointer;text-align:center;font-family:inherit;transition:background .15s}
.btn-inquiry:active{background:var(--red-d)}

/* add-to-cart button inside product modal */
.btn-add-cart{display:block;text-align:center;background:var(--ink);color:#fff;font-weight:600;padding:12px;border-radius:10px;border:0;cursor:pointer;font-family:inherit;font-size:15px;margin-top:10px;width:100%;transition:background .15s}
.btn-add-cart:active{background:var(--ink-2)}

/* inquiry modal */
.inq-modal{position:fixed;inset:0;z-index:100;background:rgba(0,0,0,.55);display:flex;align-items:center;justify-content:center;padding:18px}
.inq-modal.hidden{display:none}
.inq-box{background:#fff;border-radius:18px;max-width:430px;width:100%;max-height:90vh;overflow-y:auto}
.inq-head{display:flex;align-items:center;justify-content:space-between;padding:18px 18px 0}
.inq-head h3{font-size:17px;font-weight:700}
.inq-summary{padding:12px 18px;background:var(--soft);margin:14px 16px 0;border-radius:10px;font-size:12.5px;color:var(--ink-2);max-height:120px;overflow-y:auto}
.inq-summary b{color:var(--ink);display:block;font-size:13px;margin-bottom:4px}
.inq-summary ul{list-style:none;display:flex;flex-direction:column;gap:3px}
.inq-form{padding:16px 18px 20px;display:flex;flex-direction:column;gap:10px}
.inq-form label{font-size:13px;font-weight:600;color:var(--ink-2)}
.req{color:var(--red)}
.inq-inp{width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:10px;font-size:14.5px;font-family:inherit;color:var(--ink);outline:none;transition:.15s;background:#fff;resize:vertical}
.inq-inp:focus{border-color:var(--ink)}
.inq-msg{font-size:13px;min-height:20px;font-weight:500}
.inq-msg.ok{color:#16a34a}
.inq-msg.err{color:var(--red)}

@media(min-width:640px){
  .catbar-in{flex-wrap:wrap;overflow-x:visible}
  .grid{grid-template-columns:repeat(3,1fr);gap:16px}
  .hero h1{font-size:40px}
  .hero-in{padding:56px 16px 60px}
}
@media(min-width:960px){
  .grid{grid-template-columns:repeat(4,1fr)}
  .foot-in{grid-template-columns:1.4fr 1fr 1fr}
}
/* card cart button */
.card-cart-btn{background:var(--red);color:#fff;border:0;border-radius:8px;width:32px;height:32px;display:flex;align-items:center;justify-content:center;cursor:pointer;flex-shrink:0;padding:0}
.card-cart-btn:hover{background:var(--red-d)}
/* cart qty input */
.qty-inp{width:48px;text-align:center;border:1px solid var(--line);border-radius:6px;padding:4px 2px;font-size:14px;font-family:inherit}
.qty-inp:focus{outline:2px solid var(--red);border-color:transparent}
/* qty picker popup */
.qp-wrap{position:fixed;inset:0;z-index:120;background:rgba(0,0,0,.45);display:flex;align-items:center;justify-content:center}
.qp-wrap.hidden{display:none}
.qp-box{background:#fff;border-radius:14px;padding:24px 20px;width:260px;display:flex;flex-direction:column;gap:14px;box-shadow:0 8px 32px rgba(0,0,0,.18)}
.qp-name{font-weight:600;font-size:14px;color:var(--ink);line-height:1.4}
.qp-row{display:flex;align-items:center;gap:10px;justify-content:center}
.qp-inp{width:64px;text-align:center;border:1px solid var(--line);border-radius:8px;padding:8px 4px;font-size:18px;font-family:inherit}
.qp-inp:focus{outline:2px solid var(--red);border-color:transparent}
.qp-cancel{background:none;border:none;color:var(--muted);font-size:13px;cursor:pointer;text-align:center}
.qp-stock{font-size:12px;color:var(--muted);text-align:center}