/* =====================================================================
   GIAO DIỆN ĐIỆN THOẠI (màn hình rộng tối đa 900px)
   File này chỉ được nạp trên màn hình hẹp, sửa ở đây không ảnh hưởng máy tính.

   Cỡ chữ cố định cho điện thoại:
     Tiêu đề trang 20px · tiêu đề khu 16px · tên sản phẩm 14px
     Giá 16px (thẻ), 26px (trang chi tiết) · chữ phụ 12.5px · nhỏ nhất 12px
   Nút bấm, ô chọn cao tối thiểu 44px (vừa ngón tay).
   ===================================================================== */

body{font-size:14.5px;line-height:1.5}
.wrap{padding:0 14px}
main{padding:12px 0 24px}
.hide-m{display:none!important}
.m-only{display:flex}
.m-only-i{display:inline}.d-only{display:none}

/* ---------- Đầu trang gọn, dính trên cùng ---------- */
.topbar{display:none}
.header{position:sticky;top:0;z-index:40;box-shadow:0 1px 0 var(--line)}
.header-in{display:grid;grid-template-columns:auto minmax(0,1fr) auto auto;gap:8px 6px;align-items:center;min-height:0;padding-top:8px;padding-bottom:10px}
.menubtn{display:grid;place-items:center;width:40px;height:40px;margin-left:-8px;border:0;background:none;color:var(--brand);cursor:pointer}
.logo{gap:8px;min-width:0}
.logo-mark{width:34px;height:34px;font-size:13px;border-radius:7px;flex:none}
.logo-text{min-width:0}
.logo-text strong{font-size:15.5px;line-height:1.4;padding-top:1px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.logo-text small{font-size:12px;line-height:1.3;margin-top:1px;white-space:normal;overflow:visible;text-wrap:balance;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.m-call,.cartlink{display:grid;place-items:center;width:40px;height:40px;border-radius:50%;background:var(--bg);color:var(--brand)}
.cartlink{gap:0}
.cart-ic{width:40px;height:40px;background:none}
.cart-n{top:-2px;right:-2px;font-size:11px;min-width:18px;height:18px}
.search{grid-column:1/-1;grid-row:2;max-width:none;border-width:1.5px}
.menubtn,.logo,.m-call,.cartlink{grid-row:1}
.search input{height:40px;font-size:14.5px;padding:0 12px}
.search button{padding:0 14px}

/* ---------- Menu trượt từ trái ---------- */
.navb{position:fixed;top:0;left:0;bottom:0;width:min(84vw,320px);z-index:60;background:#fff;display:flex;flex-direction:column;transform:translateX(-102%);transition:transform .25s ease,visibility .25s;box-shadow:4px 0 24px rgba(0,0,0,.18);visibility:hidden}
.navb.open{transform:none;visibility:visible}
.drawer-h{display:flex;align-items:center;justify-content:space-between;padding:12px 8px 12px 16px;background:var(--brand);color:#fff}
.drawer-h strong{font-size:16px}
.drawer-h button{width:44px;height:44px;border:0;background:none;color:#fff;cursor:pointer;display:grid;place-items:center}
.navb-in{flex-direction:column;overflow-y:auto;padding:6px 0;flex:1}
.navb a{color:var(--ink);height:auto;min-height:48px;padding:0 16px;border-top:0;border-bottom:1px solid var(--line);font-size:15px}
.navb a:hover,.navb a.on{background:var(--cream);color:var(--brand)}
.navb a.on{box-shadow:inset 3px 0 0 var(--brand)}
.drawer-f{display:grid;gap:8px;padding:12px 16px calc(12px + env(safe-area-inset-bottom));border-top:1px solid var(--line)}
.drawer-f .btn{min-height:46px}
.backdrop{position:fixed;inset:0;z-index:55;background:rgba(20,12,6,.45);opacity:0;visibility:hidden;transition:opacity .2s;display:block}
.navb.open~.backdrop,body.locked .backdrop{opacity:1;visibility:visible}
body.locked{overflow:hidden}

/* ---------- Khối chung ---------- */
.flash{font-size:14px;padding:10px 12px}
.sec{margin-top:12px}
.sech{padding:12px 14px;gap:10px;flex-wrap:nowrap}
.sech h2{flex:1;min-width:0}
.sech a.more{flex:none}
.sech h2{font-size:16px;border-left-width:3px;padding-left:8px}
.sech a.more{font-size:13.5px;min-height:40px;display:inline-flex;align-items:center;padding:0 2px}
.secb{padding:12px}
.btn{min-height:44px;font-size:14.5px;padding:0 16px}
.btn-lg{min-height:48px;font-size:15.5px}
.crumb{font-size:12.5px;margin-bottom:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* ---------- Thẻ sản phẩm 2 cột ---------- */
.grid,.grid-4{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
.card-bd{padding:9px 10px 10px;gap:4px}
.badge{font-size:12px;top:6px;left:6px;padding:2px 6px}
.name{font-size:14px;line-height:1.38;min-height:38.6px}
.spec{font-size:12px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.sw i{width:12px;height:12px}
.pr{padding-top:2px;gap:4px}
.pr .from{font-size:12px}
.pr .price{font-size:16px}
.pr .unit{font-size:12.5px}
.pnote{font-size:12px;line-height:1.4;min-height:0}
.card:hover{box-shadow:none}
.card:hover .card-im img{transform:none}

/* ---------- Trang chủ ---------- */
.chips{display:flex;gap:8px;overflow-x:auto;margin:0 -14px 12px;padding:0 14px 2px;scrollbar-width:none;-webkit-overflow-scrolling:touch}
.chips::-webkit-scrollbar{display:none}
.chips a{flex:none;display:inline-flex;align-items:center;min-height:40px;padding:0 15px;border-radius:20px;background:#fff;border:1px solid var(--line2);font-size:14px;font-weight:500;white-space:nowrap}
.hero{grid-template-columns:minmax(0,1fr);gap:8px}
.side{display:none}
.banner{min-height:0;aspect-ratio:4/3.4;border-radius:10px}
.banner::after{background:linear-gradient(0deg,rgba(30,17,9,.88) 0%,rgba(30,17,9,.55) 55%,rgba(30,17,9,.15) 100%)}
.banner-c{padding:18px;gap:10px;justify-content:flex-end;max-width:none;width:100%}
.banner .tag{font-size:12px;padding:3px 8px}
.banner h1{font-size:24px;line-height:1.2}
.banner p{font-size:14px;line-height:1.45}
.banner .acts{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.banner .acts .btn{padding:0 10px;font-size:14px}
.minis{grid-template-columns:1fr 1fr;gap:8px}
.mini{min-height:0;aspect-ratio:1/0.82;border-radius:10px}
.mini span{padding:10px}
.mini strong{font-size:14px;line-height:1.3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.mini small{font-size:12.5px;display:block;margin-top:2px}
.cats{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
.cat{padding:8px 6px;gap:6px}
.cat img{max-width:none}
.cat strong{font-size:13px;line-height:1.3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:34px}
.cat small{font-size:12px}
.bulk{display:flex;flex-direction:column-reverse;border-radius:10px}
.bimg{min-height:0;aspect-ratio:16/9}
.bulk-c{padding:18px;gap:10px}
.bulk h1,.bulk h2{font-size:19px!important;line-height:1.3}
.bulk p{font-size:14px}
.bulk form{grid-template-columns:1fr;gap:8px}
.bulk input{height:44px;font-size:14.5px}
.bulk form .btn{width:100%}
.bulk-c>div{display:grid!important;grid-template-columns:1fr 1fr;gap:8px!important}
.bulk-c>div .btn{padding:0 8px;font-size:14px}
.proj{display:flex;overflow-x:auto;gap:10px;scroll-snap-type:x mandatory;margin:0 -12px;padding:0 12px 4px;scrollbar-width:none}
.proj::-webkit-scrollbar{display:none}
.proj figure{flex:none;width:78%;scroll-snap-align:start}
.proj figcaption{font-size:14px;padding:8px 10px}

/* ---------- Danh mục + bảng bộ lọc trượt từ dưới ---------- */
.listing{grid-template-columns:minmax(0,1fr);gap:0}
.sortbar{position:sticky;top:106px;z-index:20;padding:10px 12px;gap:8px;border-radius:0 0 8px 8px;box-shadow:0 1px 0 var(--line)}
.sortbar h1{font-size:18px}
.sortbar>div:last-child{width:100%;display:grid!important;grid-template-columns:1fr 1fr;gap:8px!important}
.sortbar form label{display:block;font-size:0}
.sortbar select{width:100%;height:44px;font-size:14px}
.fbtn{display:inline-flex;width:100%}
.filters{position:fixed;left:0;right:0;bottom:0;z-index:60;max-height:82vh;overflow-y:auto;border-radius:16px 16px 0 0;padding:0 16px;transform:translateY(105%);transition:transform .25s ease,visibility .25s;visibility:hidden;display:block}
.filters.open{transform:none;visibility:visible}
.filters.open~*{pointer-events:auto}
.sheet-h{position:sticky;top:0;background:#fff;display:flex;align-items:center;justify-content:space-between;padding:14px 0 8px;z-index:1}
.sheet-h h3{font-size:17px;margin:0}
.sheet-x{width:44px;height:44px;border:0;background:var(--bg);border-radius:50%;display:grid!important;place-items:center;cursor:pointer;margin-right:-4px}
.fgroup{padding:12px 0}
.fgroup h3{font-size:15px}
.fgroup label{min-height:44px;padding:0;font-size:15px}
.fgroup input{width:20px;height:20px}
.custom-cta{margin-bottom:12px}
.sheet-acts{display:grid;grid-template-columns:1fr 1.4fr;gap:8px;position:sticky;bottom:0;background:#fff;padding:12px 0 calc(12px + env(safe-area-inset-bottom));border-top:1px solid var(--line);margin-top:4px}
.filters > a.small{display:none}
.empty{padding:28px 16px}

/* ---------- Chi tiết sản phẩm ---------- */
.pd{grid-template-columns:minmax(0,1fr);gap:12px}
.pd-main{grid-template-columns:minmax(0,1fr);gap:14px;padding:0 0 16px;border-radius:0;margin:0 -14px;background:#fff}
.gal{margin:0}
.gal-main{border-radius:0;aspect-ratio:4/3;touch-action:pan-y}
.gal-n{font-size:12.5px;right:12px;bottom:12px;padding:3px 10px}
.thumbs{padding:0 14px;gap:6px;margin-top:8px;scrollbar-width:none}
.thumbs::-webkit-scrollbar{display:none}
.thumbs button{width:52px;height:52px;border-radius:6px}
.pd-info{padding:0 14px}
.pd-info h1{font-size:20px;line-height:1.3}
.pd-meta{font-size:12.5px;gap:4px 12px}
.pricebox{margin:12px 0;padding:12px 14px}
.pricebox .price{font-size:26px}
.pricebox .cfg{font-size:13.5px}
.pricebox .st{font-size:12.5px}
.optrow{grid-template-columns:minmax(0,1fr);gap:8px;padding:10px 0;border-top:1px solid var(--line)}
.optrow>span{padding-top:0;font-size:14px;font-weight:600;color:var(--ink)}
.opts{gap:8px}
.opt{min-height:44px;padding:0 14px;font-size:14.5px}
.opt em{font-size:12px}
.optnote{font-size:13px}
.custom input{max-width:none;height:44px;font-size:15px}
.qty button{width:44px;height:44px}
.qty input{width:60px;height:44px;font-size:15px}
.pd-acts{display:none}
.pd-hint{font-size:12.5px;line-height:1.5;margin-top:12px}
.aside{display:flex;flex-direction:column;gap:12px}
.aside .panel{padding:14px}
.aside h3{font-size:15px}
.pol{font-size:13.5px}
.tabs{gap:20px;overflow-x:auto;padding:0 14px;scrollbar-width:none}
.tabs::-webkit-scrollbar{display:none}
.tabs button{white-space:nowrap;padding:13px 0;font-size:14.5px;min-height:46px}
.tabp{padding:14px}
.tabp p{font-size:14.5px}
.spect{font-size:13.5px}
.spect td{padding:9px 10px}
.spect td:first-child{width:38%}
.pricet{font-size:13.5px}
.pricet th,.pricet td{padding:8px 10px;white-space:nowrap}
.tablewrap{overflow-x:auto;margin:0 -14px;padding:0 14px}

/* Thanh nút dính đáy */
.mbar{display:grid;grid-template-columns:52px 52px minmax(0,1fr);gap:8px;position:fixed;left:0;right:0;bottom:0;z-index:30;background:#fff;border-top:1px solid var(--line);padding:8px 12px calc(8px + env(safe-area-inset-bottom));box-shadow:0 -4px 16px rgba(0,0,0,.06)}
.mbar.no-zalo{grid-template-columns:52px minmax(0,1fr)}
.mbar .btn{min-height:48px;padding:0 8px}
.mb-ic{flex-direction:column;gap:1px;font-size:11.5px;font-weight:600;line-height:1}
.mb-ic span{font-size:12px}
.mbar .btn-p{font-size:15px}
body.has-mbar{padding-bottom:calc(72px + env(safe-area-inset-bottom))}

/* ---------- Đơn yêu cầu, biểu mẫu ---------- */
.two{grid-template-columns:minmax(0,1fr);gap:12px}
.line{grid-template-columns:72px minmax(0,1fr);gap:10px 12px;padding:12px}
.line img{width:72px;height:72px}
.line .nm{font-size:14.5px;line-height:1.35;display:block}
.line .cf{font-size:12.5px;line-height:1.45}
.line .price{font-size:15px}
.line-r{grid-column:1/-1;flex-direction:row;justify-content:space-between;align-items:center;gap:8px}
.line-r input{width:64px;height:40px;font-size:15px}
.linkbtn{min-height:40px;font-size:13.5px}
.sum{padding:12px 14px;gap:10px}
.sum .price{font-size:20px;white-space:nowrap}
.form{padding:14px;gap:12px}
.form .row2{grid-template-columns:minmax(0,1fr);gap:12px}
.form input,.form select,.form textarea{font-size:16px;min-height:46px}
.form textarea{min-height:100px}
.form label small{font-size:12.5px}
.note-box{font-size:13px}
.opt.chk{min-height:44px}
.ok-box{margin:8px 0;padding:24px 16px}
.ok-box h1{font-size:19px!important}
.ok-box .code{font-size:21px}
.steps{grid-template-columns:minmax(0,1fr);gap:0}
.step{display:grid;grid-template-columns:32px minmax(0,1fr);gap:2px 10px;border:0;border-bottom:1px solid var(--line);border-radius:0;padding:10px 0}
.step:last-child{border-bottom:0}
.step b{grid-row:span 2;margin:0;width:30px;height:30px;font-size:14px}
.step strong{font-size:14.5px}
.step span{font-size:13px}
.prose{padding:16px}
.prose h2{font-size:17px;margin:18px 0 6px}
.prose p,.prose li{font-size:14.5px;line-height:1.6}
.prose ol{padding-left:20px}

/* ---------- Chân trang ---------- */
.promise-in{grid-template-columns:1fr 1fr;gap:14px 12px;padding-top:16px;padding-bottom:16px}
.promise-in>div{gap:8px}
.promise .ic{width:22px;height:22px}
.promise strong{font-size:13.5px;line-height:1.3}
.promise small{font-size:12px;line-height:1.4;display:block;margin-top:2px}
.footer{font-size:14px}
.footer-in{grid-template-columns:1fr 1fr;gap:20px 16px;padding-top:24px;padding-bottom:18px}
.footer-in>div:first-child,.footer-in>div:last-child{grid-column:1/-1}
.footer h3{font-size:16px;margin-bottom:8px}
.footer h4{font-size:14.5px;margin-bottom:6px}
.footer a{padding:6px 0;font-size:14px}
.quick input{height:46px;font-size:16px}
.quick button{min-width:72px;font-size:15px}
.copy{font-size:12.5px}

/* ---------- Máy tính bảng dọc (600–900px): 3 cột sản phẩm ---------- */
@media (min-width:600px){
  .wrap{padding:0 20px}
  .grid,.grid-4{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
  .cats{grid-template-columns:repeat(6,minmax(0,1fr))}
  .banner{aspect-ratio:16/9}
  .banner-c{max-width:560px}
  .pd-main{margin:0 -20px}
  .pd-info,.thumbs{padding:0 20px}
  .gal-main{aspect-ratio:4/3}
  .chips{margin:0 -20px 12px;padding:0 20px 2px}
  .proj figure{width:46%}
  .filters{left:50%;right:auto;width:560px;margin-left:-280px}
  .promise-in{grid-template-columns:repeat(4,1fr)}
  .footer-in{grid-template-columns:repeat(4,1fr)}
  .footer-in>div:first-child,.footer-in>div:last-child{grid-column:auto}
}

/* ---------- Điện thoại rất nhỏ (dưới 360px) ---------- */
@media (max-width:379px){
  .header-in{gap:8px 4px}
  .m-call,.cartlink,.cart-ic{width:36px;height:36px}
  .logo{gap:8px}
}
@media (max-width:359px){
  .wrap{padding:0 12px}
  .name{font-size:13.5px}
  .pr .price{font-size:15px}
  .banner h1{font-size:21px}
  .cats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .mbar{grid-template-columns:48px 48px minmax(0,1fr);gap:6px;padding-left:10px;padding-right:10px}
  .mbar .btn-p{font-size:14px}
}

@media (prefers-reduced-motion:reduce){.navb,.filters,.backdrop{transition:none}}

/* Nút trong menu trượt không bị kiểu link danh mục ghi đè */
.navb .drawer-f .btn{min-height:46px;padding:0 16px;border:1px solid transparent;border-bottom:1px solid transparent;justify-content:center;font-size:15px;font-weight:600}
.navb .drawer-f .btn-p{background:var(--brand);color:#fff}
.navb .drawer-f .btn-zf{background:var(--zalo);color:#fff}
.navb a.m-only{display:flex}
.logo-box{width:40px;height:40px}
.logo:has(.logo-box) .logo-text strong{font-size:15px;letter-spacing:0;line-height:1.4}
.logo-box.is-framed::after{border-width:1.25px}
.logo-text small,.logo:has(.logo-box) .logo-text small{font-size:13px;line-height:1.3;margin-top:2px}