:root{
  --primary:#c8102e;       /* automotive red */
  --primary-dark:#9c0c23;
  --ink:#1c2434;
  --muted:#6b7280;
  --line:#e5e7eb;
  --bg:#f4f5f7;
  --stock:#1a7f37;
  --radius:10px;
  --shadow:0 1px 3px rgba(0,0,0,.08),0 1px 2px rgba(0,0,0,.04);
}
*{box-sizing:border-box}
body{
  margin:0;font-family:'Segoe UI',Roboto,Arial,sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.5;
}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.container{max-width:1200px;margin:0 auto;padding:0 16px}

/* ---------- Header ---------- */
.topbar{background:var(--ink);color:#cbd5e1;font-size:13px;padding:6px 0}
.topbar-hotline strong{color:#fff}
.header-main{background:#fff;border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  background:var(--primary);color:#fff;font-weight:800;width:40px;height:40px;
  display:grid;place-items:center;border-radius:8px;font-size:18px;letter-spacing:-1px;
}
.brand-text{font-weight:800;font-size:19px;color:var(--ink);white-space:nowrap}
.search-box{display:flex;max-width:620px}
.search-box input{
  flex:1;border:2px solid var(--primary);border-right:none;border-radius:8px 0 0 8px;
  padding:10px 14px;font-size:15px;outline:none;min-width:0;
}
.search-box button{
  background:var(--primary);color:#fff;border:none;padding:0 22px;font-weight:600;
  border-radius:0 8px 8px 0;cursor:pointer;white-space:nowrap;
}
.search-box button:hover{background:var(--primary-dark)}
.cart-link{display:flex;align-items:center;gap:8px;position:relative;flex-shrink:0;font-weight:600}
.cart-ico{font-size:22px}
.cart-label{display:none}
.cart-badge{
  background:var(--primary);color:#fff;border-radius:999px;min-width:20px;height:20px;
  padding:0 6px;font-size:12px;display:grid;place-items:center;font-weight:700;
}
@media(min-width:768px){.cart-label{display:inline}}

/* nav */
.main-nav{background:var(--primary)}
.nav-list{list-style:none;display:flex;gap:2px;margin:0;padding:0;flex-wrap:wrap}
.nav-list>li>a{display:block;color:#fff;padding:12px 16px;font-weight:600;font-size:14px}
.nav-list>li>a:hover{background:rgba(255,255,255,.15)}
.nav-cats,.nav-brands{position:relative}
.nav-cats:hover .cat-menu{display:block}
.nav-brands:hover .brand-menu{display:grid}
.cat-menu{
  display:none;position:absolute;top:100%;left:0;background:#fff;box-shadow:var(--shadow);
  min-width:260px;padding:8px;z-index:50;border-radius:0 0 8px 8px;
}
.cat-menu a{display:block;padding:9px 14px;color:var(--ink);font-size:14px;border-radius:6px}
.cat-menu a:hover{background:var(--bg);color:var(--primary)}
.brand-menu{
  display:none;position:absolute;top:100%;left:0;background:#fff;box-shadow:var(--shadow);
  grid-template-columns:repeat(3,1fr);min-width:420px;padding:8px;z-index:50;border-radius:0 0 8px 8px;
}
.brand-menu a{display:flex;align-items:center;gap:8px;padding:7px 12px;color:var(--ink);font-size:14px;border-radius:6px}
.brand-menu a:hover{background:var(--bg);color:var(--primary)}
.brand-menu-logo{width:24px;height:24px;object-fit:contain;flex-shrink:0}

/* ---------- Hero ---------- */
.hero{
  background:linear-gradient(120deg,#1c2434,#2d3a52);color:#fff;padding:48px 0;margin-bottom:24px;
}
.hero-inner{max-width:640px}
.hero h1{font-size:34px;margin:0 0 12px;line-height:1.2}
.hero p{font-size:17px;color:#cbd5e1;margin:0 0 20px}
.btn-hero{
  display:inline-block;background:var(--primary);color:#fff;padding:12px 28px;border-radius:8px;font-weight:700;
}
.btn-hero:hover{background:var(--primary-dark)}

/* hero cascading search */
.hero-search{
  background:#fff;border-radius:14px;padding:18px;margin-top:24px;
  box-shadow:0 12px 30px rgba(0,0,0,.25);
}
.hs-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:12px}
.hs-more{display:contents}
.hs-field{display:flex;flex-direction:column;min-width:0}
.hs-field label{font-size:12px;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.4px;margin-bottom:6px}
.hs-field select{
  appearance:none;-webkit-appearance:none;background:#fff;border:1.5px solid var(--line);border-radius:8px;
  padding:11px 32px 11px 12px;font-size:15px;color:var(--ink);cursor:pointer;outline:none;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'><path d='M2 4l4 4 4-4' stroke='%23999' stroke-width='1.6' fill='none'/></svg>");
  background-repeat:no-repeat;background-position:right 12px center;
}
.hs-field select:focus{border-color:var(--primary)}
.hs-field select:disabled{background-color:#f1f2f4;color:#aaa;cursor:not-allowed}
.hs-btn{
  margin-top:14px;width:100%;background:var(--primary);color:#fff;border:none;border-radius:8px;
  padding:13px;font-size:16px;font-weight:800;cursor:pointer;letter-spacing:.3px;
}
.hs-btn:hover{background:var(--primary-dark)}
@media(min-width:768px){
  .hs-btn{width:auto;min-width:220px;padding:13px 36px}
}

/* ---------- Blocks ---------- */
.home-block{margin:32px 0}
.block-title{font-size:22px;margin:0 0 16px;border-left:4px solid var(--primary);padding-left:12px}
.block-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}
.block-head .block-title{margin:0}
.see-all{color:var(--primary);font-weight:600}

.loai-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:12px}
.loai-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;
  display:flex;align-items:center;gap:12px;font-weight:600;transition:.15s;box-shadow:var(--shadow);
}
.loai-card:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.loai-ico{font-size:24px}

.brand-grid{display:flex;flex-wrap:wrap;gap:8px}
.brand-chip{
  background:#fff;border:1px solid var(--line);padding:8px 16px;border-radius:999px;font-weight:600;font-size:14px;
}
.brand-chip:hover{border-color:var(--primary);color:var(--primary)}

/* brand logo grid (home) */
.brand-logo-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:12px}
.brand-logo-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:16px 10px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
  box-shadow:var(--shadow);transition:.15s;min-height:110px;
}
.brand-logo-card:hover{border-color:var(--primary);transform:translateY(-2px)}
.brand-logo-card img{height:46px;width:auto;max-width:100%;object-fit:contain}
.brand-logo-fallback{
  height:46px;display:grid;place-items:center;font-weight:800;font-size:18px;color:var(--ink);
}
.brand-logo-name{font-size:13px;font-weight:600;color:var(--muted);text-align:center}
.brand-logo-card:hover .brand-logo-name{color:var(--primary)}

/* ---------- Product grid / card ---------- */
.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px}
.product-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  display:flex;flex-direction:column;transition:.15s;box-shadow:var(--shadow);
}
.product-card:hover{border-color:var(--primary);transform:translateY(-3px);box-shadow:0 6px 16px rgba(0,0,0,.1)}
.pc-thumb{position:relative;display:block;aspect-ratio:1;background:#fff;overflow:hidden}
.pc-thumb img{width:100%;height:100%;object-fit:contain;padding:8px}
.badge-stock{
  position:absolute;top:8px;left:8px;background:var(--stock);color:#fff;font-size:11px;
  padding:3px 8px;border-radius:4px;font-weight:600;
}
.pc-body{padding:10px 12px 12px;display:flex;flex-direction:column;flex:1}
.pc-code{font-size:12px;color:var(--muted);margin-bottom:4px}
.pc-name{
  font-size:14px;font-weight:600;line-height:1.35;display:-webkit-box;-webkit-line-clamp:2;
  -webkit-box-orient:vertical;overflow:hidden;min-height:38px;margin-bottom:4px;
}
.pc-name:hover{color:var(--primary)}
.pc-brand{font-size:12px;color:var(--muted);margin-bottom:6px}
.pc-price{font-size:17px;font-weight:800;color:var(--primary);margin-bottom:10px;margin-top:auto}
.pc-price.is-quote{color:var(--muted);font-size:15px;font-weight:600}
.btn-add{
  width:100%;background:#fff;border:1.5px solid var(--primary);color:var(--primary);
  padding:8px;border-radius:8px;font-weight:600;cursor:pointer;transition:.15s;
}
.btn-add:hover{background:var(--primary);color:#fff}

/* ---------- Catalog ---------- */
.breadcrumb-bar{padding:14px 0;font-size:14px;color:var(--muted)}
.breadcrumb-bar a:hover{color:var(--primary)}
.breadcrumb-bar span{margin:0 4px}
.catalog-title{font-size:22px;margin:0 0 14px;line-height:1.3}
.catalog-layout{display:grid;grid-template-columns:260px 1fr;gap:24px;padding-bottom:40px}
.catalog-side .side-box{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);margin-bottom:16px;overflow:hidden;
}
.side-box h3{font-size:15px;margin:0;padding:12px 16px;background:var(--ink);color:#fff}
.side-list{list-style:none;margin:0;padding:6px}
.side-list.scrolly{max-height:320px;overflow:auto}
.side-list li a{display:block;padding:8px 12px;border-radius:6px;font-size:14px}
.side-list li a:hover{background:var(--bg);color:var(--primary)}
.side-list li.active a{background:var(--primary);color:#fff;font-weight:600}
/* category tree */
.cat-tree{list-style:none;margin:0;padding:6px;max-height:560px;overflow:auto}
.cat-tree ul{list-style:none;margin:0;padding-left:12px;border-left:1px dashed var(--line)}
.cat-tree li>a{display:block;padding:7px 10px;border-radius:6px;font-size:14px;line-height:1.35}
.cat-tree li>a:hover{background:var(--bg);color:var(--primary)}
.cat-tree li.active>a,
.cat-tree li.active>details>summary>a{background:var(--primary);color:#fff;font-weight:600}
.cat-tree details>summary{
  list-style:none;display:flex;align-items:center;cursor:pointer;border-radius:6px;
}
.cat-tree details>summary::-webkit-details-marker{display:none}
.cat-tree details>summary:hover{background:var(--bg)}
.cat-tree details>summary::after{
  content:"\25B8";font-size:11px;color:var(--muted);padding:0 10px;transition:transform .15s;flex-shrink:0;
}
.cat-tree details[open]>summary::after{transform:rotate(90deg)}
.cat-tree summary>a{flex:1;padding:7px 4px 7px 10px}
.cat-tree summary>a:hover{background:transparent;color:var(--primary)}

/* brand logos in sidebar list */
.brand-list li a{display:flex;align-items:center;gap:8px}
.brand-list-logo{width:22px;height:22px;object-fit:contain;flex-shrink:0}
.brand-list li.active .brand-list-logo{background:#fff;border-radius:3px;padding:1px}

/* brand header banner */
.brand-header{
  display:flex;align-items:center;gap:18px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:18px 22px;margin-bottom:16px;box-shadow:var(--shadow);
}
.brand-header img{height:56px;width:auto;max-width:140px;object-fit:contain}
.brand-header-text h1{margin:0;font-size:22px}
.brand-header-text span{color:var(--muted);font-size:14px}

/* brand models bar */
.models-bar{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;margin-bottom:16px}
.models-bar h3{margin:0 0 10px;font-size:15px;border-left:4px solid var(--primary);padding-left:10px}
.model-chips{display:flex;flex-wrap:wrap;gap:8px}
.model-chip{
  display:inline-flex;align-items:center;gap:6px;background:var(--bg);border:1px solid var(--line);
  padding:7px 14px;border-radius:999px;font-weight:600;font-size:14px;
}
.model-chip span{background:#fff;color:var(--muted);font-size:11px;padding:1px 7px;border-radius:999px;font-weight:700}
.model-chip:hover{border-color:var(--primary);color:var(--primary)}
.model-chip.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.model-chip.active span{background:rgba(255,255,255,.25);color:#fff}

.catalog-toolbar{
  display:flex;justify-content:space-between;align-items:center;background:#fff;
  border:1px solid var(--line);border-radius:var(--radius);padding:12px 16px;margin-bottom:16px;
}
.result-count{font-weight:600}
.sort-form{display:flex;align-items:center;gap:8px;font-size:14px}
.sort-form select{padding:6px 10px;border:1px solid var(--line);border-radius:6px}

.pager{display:flex;gap:6px;justify-content:center;margin-top:28px;flex-wrap:wrap}
.pager a{
  min-width:38px;height:38px;display:grid;place-items:center;background:#fff;
  border:1px solid var(--line);border-radius:8px;padding:0 12px;font-weight:600;
}
.pager a:hover{border-color:var(--primary);color:var(--primary)}
.pager a.active{background:var(--primary);color:#fff;border-color:var(--primary)}

.empty-state{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:48px;text-align:center}
.btn-primary-line{
  display:inline-block;margin-top:12px;background:var(--primary);color:#fff;padding:10px 24px;border-radius:8px;font-weight:600;
}
.btn-primary-line:hover{background:var(--primary-dark)}

/* ---------- Detail ---------- */
.detail-top{display:grid;grid-template-columns:440px 1fr;gap:32px;margin-bottom:32px}
.detail-gallery .main-img{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);aspect-ratio:1;
  display:grid;place-items:center;overflow:hidden;
}
.detail-gallery .main-img img{width:100%;height:100%;object-fit:contain;padding:16px}
.thumbs{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap}
.thumb{
  width:64px;height:64px;object-fit:contain;border:1px solid var(--line);border-radius:6px;
  padding:4px;cursor:pointer;background:#fff;
}
.thumb:hover{border-color:var(--primary)}
.detail-name{font-size:24px;margin:0 0 16px}
.detail-meta{list-style:none;padding:0;margin:0 0 16px;display:grid;gap:8px}
.detail-meta li{font-size:14px}
.detail-meta li span{color:var(--muted);display:inline-block;min-width:120px}
.text-stock{color:var(--stock)}
.text-order{color:#b45309}
.detail-price{font-size:28px;font-weight:800;color:var(--primary);margin:16px 0;padding:14px 18px;background:#fff5f6;border-radius:8px}
.detail-price.is-quote{color:var(--ink);font-size:22px;background:var(--bg)}
.qty-row{display:flex;align-items:center;gap:14px;margin-bottom:16px}
.qty-stepper{display:inline-flex;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.qty-stepper button{width:38px;background:#fff;border:none;font-size:18px;cursor:pointer}
.qty-stepper button:hover{background:var(--bg)}
.qty-input{width:56px;text-align:center;border:none;border-left:1px solid var(--line);border-right:1px solid var(--line);font-size:15px}
.detail-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn-add-lg,.btn-buy-lg{padding:13px 28px;border-radius:8px;font-weight:700;cursor:pointer;font-size:15px;border:none}
.btn-add-lg{background:#fff;border:2px solid var(--primary);color:var(--primary)}
.btn-add-lg:hover{background:var(--primary);color:#fff}
.btn-buy-lg{background:var(--primary);color:#fff}
.btn-buy-lg:hover{background:var(--primary-dark)}
.detail-desc{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;margin-bottom:32px}
.detail-desc h2{font-size:20px;margin-top:0;border-left:4px solid var(--primary);padding-left:12px}
.desc-html{font-size:15px;overflow-wrap:break-word}
.desc-html img{height:auto}

/* ---------- Admin inline image manager ---------- */
.admin-img-panel{margin-top:14px;background:#fff7ed;border:1px solid #fdba74;border-radius:10px;padding:14px}
.aip-head{font-weight:700;font-size:14px;color:#9a3412;margin-bottom:10px}
.aip-msg{background:#dcfce7;color:#15803d;border-radius:6px;padding:8px 10px;font-size:13px;margin-bottom:10px}
.aip-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(84px,1fr));gap:8px;margin-bottom:12px}
.aip-item{position:relative;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:#fff;aspect-ratio:1}
.aip-item.is-main{border-color:var(--primary);box-shadow:0 0 0 2px rgba(200,16,46,.2)}
.aip-item img{width:100%;height:100%;object-fit:contain;padding:4px}
.aip-main-badge{position:absolute;top:0;left:0;background:var(--primary);color:#fff;font-size:10px;padding:1px 6px;border-bottom-right-radius:6px;font-weight:700}
.aip-actions{position:absolute;top:3px;right:3px;display:flex;gap:3px}
.aip-actions form{margin:0}
.aip-btn{width:22px;height:22px;border:none;border-radius:5px;cursor:pointer;font-size:12px;line-height:1;color:#fff;font-weight:700}
.aip-set{background:#f59e0b}
.aip-set:hover{background:#d97706}
.aip-del{background:#ef4444}
.aip-del:hover{background:#dc2626}
.aip-upload{display:flex;gap:8px;align-items:center;flex-wrap:wrap;border-top:1px dashed #fdba74;padding-top:10px}
.aip-upload input[type=file]{font-size:12px;flex:1;min-width:140px}
.aip-upbtn{background:var(--primary);color:#fff;border:none;border-radius:7px;padding:8px 14px;font-weight:600;cursor:pointer;font-size:13px;white-space:nowrap}
.aip-upbtn:hover{background:var(--primary-dark)}

/* ---------- Product commitment / benefits ---------- */
.commit-box{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;margin:24px 0;box-shadow:var(--shadow)}
.commit-box h2{font-size:20px;margin:0 0 16px;border-left:4px solid var(--primary);padding-left:12px}
.commit-list{list-style:none;padding:0;margin:0 0 16px;display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:10px}
.commit-list li{position:relative;padding:10px 14px 10px 40px;background:#f0fdf4;border:1px solid #bbf7d0;border-radius:8px;font-weight:600;font-size:14px;color:#15803d}
.commit-list li::before{content:"✓";position:absolute;left:14px;top:50%;transform:translateY(-50%);width:18px;height:18px;background:var(--stock);color:#fff;border-radius:50%;display:grid;place-items:center;font-size:12px;font-weight:700}
.commit-notes{border-top:1px solid var(--line);padding-top:14px}
.commit-notes p{font-size:14px;line-height:1.7;margin:0 0 8px;color:var(--ink)}
.commit-notes strong{color:var(--primary)}

/* ---------- Cart ---------- */
.page-title{font-size:26px;margin:20px 0}
.cart-layout{display:grid;grid-template-columns:1fr 320px;gap:24px;padding-bottom:40px}
.cart-table{width:100%;background:#fff;border-collapse:collapse;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.cart-table th{background:var(--ink);color:#fff;padding:12px;text-align:left;font-size:13px;font-weight:600}
.cart-table td{padding:12px;border-top:1px solid var(--line);vertical-align:middle;font-size:14px}
.ci-thumb img{width:64px;height:64px;object-fit:contain;border:1px solid var(--line);border-radius:6px;background:#fff}
.ci-name a{font-weight:600}.ci-name a:hover{color:var(--primary)}
.ci-code{font-size:12px;color:var(--muted);margin-top:4px}
.ci-price,.ci-total{white-space:nowrap;font-weight:600}
.ci-total{color:var(--primary)}
.ci-qty .qty-input{width:64px;border:1px solid var(--line);border-radius:6px;padding:6px}
.ci-remove button{background:none;border:none;color:var(--muted);font-size:16px;cursor:pointer}
.ci-remove button:hover{color:var(--primary)}
.continue-link{display:inline-block;margin-top:16px;color:var(--primary);font-weight:600}
.cart-summary{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;height:fit-content;position:sticky;top:16px}
.cart-summary h3{margin:0 0 16px;font-size:18px}
.sum-row,.sum-total{display:flex;justify-content:space-between;padding:8px 0;font-size:14px}
.sum-total{border-top:2px solid var(--line);margin-top:8px;padding-top:12px;font-size:18px}
.sum-total strong{color:var(--primary)}
.sum-note{font-size:12px;color:var(--muted);background:var(--bg);padding:8px;border-radius:6px;margin:8px 0}
.btn-checkout{display:block;text-align:center;background:var(--primary);color:#fff;padding:14px;border-radius:8px;font-weight:700;margin-top:16px;font-size:16px}
.btn-checkout:hover{background:var(--primary-dark)}
.sum-hint{font-size:12px;color:var(--muted);text-align:center;margin-top:10px}
.alert-success{background:#d1fae5;color:#065f46;padding:12px 16px;border-radius:8px;margin-bottom:16px}

/* ---------- Checkout ---------- */
.checkout-sub{color:var(--muted);margin-bottom:20px}
.checkout-layout{display:grid;grid-template-columns:1fr 360px;gap:24px;padding-bottom:40px}
.checkout-form,.checkout-summary{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.checkout-form h3,.checkout-summary h3{margin-top:0;font-size:18px}
.form-field{margin-bottom:16px;display:flex;flex-direction:column}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-field label{font-weight:600;font-size:14px;margin-bottom:6px}
.form-field input,.form-field textarea{
  border:1px solid var(--line);border-radius:8px;padding:10px 12px;font-size:15px;font-family:inherit;
}
.form-field input:focus,.form-field textarea:focus{outline:none;border-color:var(--primary)}
.field-error{color:var(--primary);font-size:13px;margin-top:4px}
.validation-summary{color:var(--primary);font-size:14px}
.validation-summary ul{margin:0;padding-left:18px}
.payment-box{margin-top:8px}
.payment-option{display:flex;align-items:center;gap:10px;border:1.5px solid var(--primary);border-radius:8px;padding:14px;font-weight:600}
.checkout-summary{height:fit-content;position:sticky;top:16px}
.co-items{margin-bottom:16px;max-height:320px;overflow:auto}
.co-item{display:flex;gap:10px;align-items:center;padding:8px 0;border-bottom:1px solid var(--line)}
.co-item img{width:48px;height:48px;object-fit:contain;border:1px solid var(--line);border-radius:6px;background:#fff}
.co-item-info{flex:1;min-width:0}
.co-item-name{font-size:13px;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.co-item-qty{font-size:12px;color:var(--muted)}
.co-item-total{font-size:13px;font-weight:600;white-space:nowrap}
.btn-placeorder{width:100%;background:var(--primary);color:#fff;border:none;padding:15px;border-radius:8px;font-weight:700;font-size:16px;cursor:pointer;margin-top:16px}
.btn-placeorder:hover{background:var(--primary-dark)}
.back-cart{display:block;text-align:center;margin-top:12px;color:var(--muted);font-size:14px}

/* ---------- Success ---------- */
.success-page{padding:40px 0}
.success-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:40px;max-width:720px;margin:0 auto;text-align:center}
.success-ico{width:72px;height:72px;background:var(--stock);color:#fff;border-radius:50%;display:grid;place-items:center;font-size:38px;margin:0 auto 16px}
.success-card h1{font-size:26px;margin:0 0 8px}
.order-code{font-size:26px;font-weight:800;color:var(--primary);letter-spacing:1px;margin:8px 0 16px;padding:12px;background:#fff5f6;border-radius:8px}
.success-note{color:var(--muted)}
.success-info{text-align:left;background:var(--bg);border-radius:8px;padding:16px;margin:20px 0;display:grid;gap:8px}
.success-info span{color:var(--muted);display:inline-block;min-width:110px}
.success-items{width:100%;border-collapse:collapse;margin:16px 0;text-align:left}
.success-items th,.success-items td{padding:10px;border-bottom:1px solid var(--line);font-size:14px}
.success-items th{background:var(--bg)}
.success-items tfoot td{font-size:16px;border-top:2px solid var(--line)}

/* ---------- Footer (multi-tier) ---------- */
.site-footer{margin-top:48px;color:#cbd5e1}

/* tier 1: feature strip */
.footer-features{background:var(--primary-dark)}
.footer-features-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;padding:18px 16px}
.footer-features .feature{display:flex;align-items:center;gap:12px;color:#fff}
.footer-features .fi{font-size:26px;line-height:1}
.footer-features .feature strong{display:block;font-size:14px}
.footer-features .feature small{color:rgba(255,255,255,.8);font-size:12px}

/* tier 2: main columns */
.footer-main{background:var(--ink)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:32px;padding:42px 16px}
.footer-col h6{color:#fff;font-size:15px;margin:0 0 14px;position:relative;padding-bottom:10px}
.footer-col h6::after{content:"";position:absolute;left:0;bottom:0;width:36px;height:2px;background:var(--primary)}
.footer-col ul{list-style:none;padding:0;margin:0;display:grid;gap:9px}
.footer-col ul a{font-size:14px;color:#cbd5e1}
.footer-col ul a:hover{color:#fff;padding-left:3px}
.footer-about p{font-size:14px;line-height:1.7;margin:0 0 14px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:18px;margin-bottom:12px}
.footer-brand .brand-mark{width:38px;height:38px;font-size:16px}
.footer-contact{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.footer-contact li{display:flex;gap:10px;font-size:14px;line-height:1.5}
.footer-contact li span{flex-shrink:0}
.footer-contact a{color:#cbd5e1}
.footer-contact a:hover{color:#fff}
.footer-hotline{margin-top:16px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:8px;padding:10px 14px}
.footer-hotline small{display:block;font-size:12px;color:#9aa6b8}
.footer-hotline a{color:#fff;font-size:20px;font-weight:800;letter-spacing:.5px}

/* tier 3: bottom bar */
.footer-bottom{background:#141a26}
.footer-bottom-inner{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:16px;font-size:13px;color:#9aa6b8;flex-wrap:wrap}

@media(max-width:992px){
  .footer-features-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  .footer-features-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom-inner{justify-content:center;text-align:center}
}

/* ---------- News ---------- */
.news{padding-bottom:40px}
.news-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:24px;align-items:start}
.news-main,.article-main{grid-column:1;min-width:0}
.news-side{grid-column:2}
.news-side .side-box{background:#fff;border:1px solid var(--line);border-radius:var(--radius);margin-bottom:16px;overflow:hidden}
.news-side .side-box h3{font-size:15px;margin:0;padding:12px 16px;background:var(--ink);color:#fff}
.news-side .side-list{list-style:none;margin:0;padding:6px}
.news-side .side-list li a{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:9px 12px;border-radius:6px;font-size:14px}
.news-side .side-list li a:hover{background:var(--bg);color:var(--primary)}
.news-side .side-list li.active a{background:var(--primary);color:#fff;font-weight:600}
.news-side .side-list .cnt{background:var(--bg);color:var(--muted);font-size:11px;padding:1px 8px;border-radius:999px;font-weight:700}
.news-side .side-list li.active .cnt{background:rgba(255,255,255,.25);color:#fff}

.news-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:18px}
.news-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow);transition:.15s}
.news-card:hover{border-color:var(--primary);transform:translateY(-3px);box-shadow:0 6px 16px rgba(0,0,0,.1)}
.nc-thumb{display:block;aspect-ratio:16/10;overflow:hidden;background:var(--bg)}
.nc-thumb img{width:100%;height:100%;object-fit:cover}
.nc-body{padding:14px;display:flex;flex-direction:column;flex:1}
.nc-date{font-size:12px;color:var(--muted);margin-bottom:6px}
.nc-title{font-size:15px;font-weight:700;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:8px}
.nc-title:hover{color:var(--primary)}
.nc-excerpt{font-size:13px;color:var(--muted);line-height:1.5;margin:0 0 10px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.nc-more{margin-top:auto;font-size:13px;font-weight:600;color:var(--primary)}

/* article detail */
.article-main{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.article-title{font-size:28px;line-height:1.3;margin:0 0 12px}
.article-meta{display:flex;flex-wrap:wrap;gap:16px;color:var(--muted);font-size:14px;padding-bottom:16px;border-bottom:1px solid var(--line);margin-bottom:18px}
.article-meta a{color:var(--primary);font-weight:600}
.article-lead{font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;margin:0 0 18px}
.article-body{font-size:16px;line-height:1.75;overflow-wrap:break-word}
.article-body img{height:auto;border-radius:6px;margin:8px 0}
.article-body p{margin:0 0 14px}
.article-back{margin-top:24px;padding-top:16px;border-top:1px solid var(--line)}
.article-back a{color:var(--primary);font-weight:600}

.related-list{list-style:none;margin:0;padding:8px}
.related-list li a{display:flex;gap:10px;align-items:center;padding:8px;border-radius:6px}
.related-list li a:hover{background:var(--bg)}
.related-list img{width:60px;height:46px;object-fit:cover;border-radius:6px;flex-shrink:0}
.related-list span{font-size:13px;font-weight:600;line-height:1.35;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-list li a:hover span{color:var(--primary)}

@media(max-width:992px){
  .news-layout{grid-template-columns:1fr}
  .news-main,.article-main,.news-side{grid-column:auto}
}

/* ---------- Info / policy pages ---------- */
.info-page{padding-bottom:48px}
.info-doc{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px;max-width:880px;line-height:1.75}
.info-doc h1{font-size:28px;margin:0 0 18px}
.info-doc h2{font-size:19px;margin:24px 0 10px;border-left:4px solid var(--primary);padding-left:12px}
.info-doc ul{padding-left:20px}
.info-doc li{margin-bottom:6px}
.info-doc a{color:var(--primary);font-weight:600}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}
.contact-list{list-style:none;padding:0;margin:0 0 16px}
.contact-list li{padding:8px 0;border-bottom:1px solid var(--line);font-size:15px}
@media(max-width:860px){.contact-grid{grid-template-columns:1fr}}

/* ---------- Error pages ---------- */
.error-page{padding:48px 16px}
.error-card{max-width:620px;margin:0 auto;text-align:center;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:40px 28px;box-shadow:var(--shadow)}
.error-code{font-size:72px;font-weight:800;color:var(--primary);line-height:1}
.error-card h1{font-size:24px;margin:10px 0}
.error-card p{color:var(--muted);font-size:15px}
.error-search{display:flex;max-width:460px;margin:18px auto}
.error-search input{flex:1;border:2px solid var(--primary);border-right:none;border-radius:8px 0 0 8px;padding:10px 14px;outline:none;min-width:0}
.error-search button{background:var(--primary);color:#fff;border:none;padding:0 20px;font-weight:600;border-radius:0 8px 8px 0;cursor:pointer}
.error-links{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin:18px 0}
.error-links a{padding:9px 18px;border-radius:8px;font-weight:600;font-size:14px}
.btn-cancel-line{background:var(--bg);color:var(--ink);border:1px solid var(--line)}
.btn-cancel-line:hover{border-color:var(--primary);color:var(--primary)}
.error-hotline{font-size:14px;color:var(--muted)}
.error-hotline a{color:var(--primary)}

/* ---------- Toast ---------- */
.toast-flash{
  position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(20px);
  background:var(--ink);color:#fff;padding:12px 24px;border-radius:8px;font-weight:600;
  box-shadow:0 6px 20px rgba(0,0,0,.25);opacity:0;transition:.3s;z-index:1000;
}
.toast-flash.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ---------- Responsive ---------- */
@media(max-width:992px){
  .catalog-layout{grid-template-columns:1fr}
  .catalog-side{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}
  .detail-top{grid-template-columns:1fr}
  .cart-layout,.checkout-layout{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
}
@media(max-width:640px){
  .header-main .container{flex-wrap:wrap}
  .search-box{order:3;width:100%;max-width:none}
  .hero h1{font-size:26px}
  .cart-table thead{display:none}
  .cart-table,.cart-table tbody,.cart-table tr,.cart-table td{display:block;width:100%}
  .cart-table tr{border-bottom:2px solid var(--line);padding:8px 0}
  .cart-table td{border:none;padding:6px 12px}
  .form-row{grid-template-columns:1fr}

  /* 2 sản phẩm / hàng trên mobile */
  .product-grid{grid-template-columns:repeat(2,1fr);gap:10px}
  .pc-body{padding:8px 10px 10px}
  .pc-name{font-size:13px;min-height:34px}
  .pc-price{font-size:15px}
  .btn-add{padding:7px;font-size:13px}
  .news-grid{grid-template-columns:repeat(2,1fr);gap:10px}
}