/* =========================================================
   TẠP HÓA 24/7 — style.css
   Phong cách: TERMINAL / POS — màn hình máy tính tiền + hóa đơn in nhiệt.
   Nền đen #0B0F0C, chữ xanh lân tinh #33FF66 (mờ #1E8C3A), hổ phách #FFB000
   cho cảnh báo, trắng cho dòng tổng. Font duy nhất: JetBrains Mono.
   Đặc trưng:
     - Lớp scanline (vạch ngang 2px, 6%) phủ toàn trang, con trỏ ▌ nhấp nháy
     - Hộp viền kẻ 1px + dấu góc "+" như khung ASCII, nhãn [ TIEU DE ] đè lên viền
     - Hero "gõ chữ" từng ký tự, ô lệnh "> tìm sản phẩm…" lọc sản phẩm trực tiếp
     - Danh sách sản phẩm = sổ cái (ledger): MÃ  TÊN ....... SL  ĐƠN GIÁ, dấu chấm dẫn
     - Giỏ hàng = HÓA ĐƠN in trên giấy trắng, mép dưới xé răng cưa, mã vạch CSS
     - Thanh trạng thái cố định đáy trang, chân trang kiểu "*** CAM ON QUY KHACH ***"
   Không bo góc, không gradient (trừ scanline / mã vạch / chấm dẫn), không ảnh lớn:
   chỉ thumbnail 64px lọc màu xanh lân tinh trong khung [ ].
   Điểm gãy: 1100 / 980 / 640.
   ========================================================= */

:root{
  --bg:#0B0F0C;
  --bg-2:#0F1510;
  --bg-3:#121A14;
  --g:#33FF66;
  --g-dim:#1E8C3A;
  --g-dark:#0F4A1F;
  --amber:#FFB000;
  --red:#FF4D4D;
  --white:#F2FFF5;
  --paper:#F7F7F2;
  --ink:#111111;
  --ink-2:#555555;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --fs:14px;
  --lh:1.65;
  --bar:34px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);color:var(--g);font-family:var(--mono);font-size:var(--fs);line-height:var(--lh);
  padding-bottom:calc(var(--bar) + 24px);min-height:100vh;position:relative;
  -webkit-font-smoothing:antialiased;
}
/* Scanline phủ toàn trang */
body::before{
  content:"";position:fixed;inset:0;z-index:200;pointer-events:none;
  background:repeating-linear-gradient(to bottom,transparent 0 2px,rgba(51,255,102,.06) 2px 4px);
}
/* Tối mép màn hình (box-shadow, không gradient) */
body::after{content:"";position:fixed;inset:0;z-index:199;pointer-events:none;box-shadow:inset 0 0 120px rgba(0,0,0,.75)}

a{color:inherit;text-decoration:none}
a:hover{color:var(--white)}
ul{list-style:none}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit;color:inherit;background:none;border:0;outline:0}
button{cursor:pointer}
h1,h2,h3,h4{font-weight:700;text-transform:uppercase;letter-spacing:.04em;line-height:1.2}
h1{font-size:clamp(22px,3.2vw,36px)}
h2{font-size:clamp(16px,2vw,22px)}
h3{font-size:15px}
h4{font-size:13px}
p{max-width:70ch}
strong{color:var(--white)}
.container{width:min(1120px,94%);margin:0 auto}
.dim{color:var(--g-dim)}
.amber{color:var(--amber)}
.red{color:var(--red)}
.white{color:var(--white)}
.hide{display:none!important}
.mt{margin-top:24px}
.mb{margin-bottom:24px}
.center{text-align:center}
.right{text-align:right}
hr.rule{border:0;border-top:1px dashed var(--g-dim);margin:18px 0}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

/* ---------- Con trỏ nhấp nháy ---------- */
.cur::after,h1::after{content:"▌";margin-left:.15em;animation:blink 1s steps(2,start) infinite;color:var(--g)}
@keyframes blink{to{visibility:hidden}}

/* ---------- Header / thanh lệnh ---------- */
.header{border-bottom:1px solid var(--g-dim);background:var(--bg);position:sticky;top:0;z-index:150}
.header__in{display:flex;align-items:center;gap:22px;min-height:52px}
.logo{display:flex;align-items:center;gap:10px;white-space:nowrap;font-weight:700;text-transform:uppercase}
.logo b{color:var(--white)}
.logo small{color:var(--g-dim);font-weight:400;font-size:11px}
.nav{display:flex;gap:4px;margin-left:auto}
.nav__link{padding:6px 10px;color:var(--g-dim);white-space:nowrap}
.nav__link::before{content:"> ";color:var(--g-dark)}
.nav__link:hover{color:var(--g);background:var(--bg-3)}
.nav__link.is-active{color:var(--g);background:var(--bg-3)}
.nav__link.is-active::before{color:var(--g)}
.burger{display:none;padding:6px 10px;border:1px solid var(--g-dim);color:var(--g);text-transform:uppercase}
.burger:hover{background:var(--g);color:var(--bg)}

/* Dòng phiên làm việc (session line) */
.session{border-bottom:1px solid var(--g-dark);color:var(--g-dim);font-size:12px;padding:6px 0;background:var(--bg-2)}
.session__in{display:flex;gap:18px;flex-wrap:wrap}
.session .ok{color:var(--g)}

/* ---------- Ô lệnh ---------- */
.cmd{display:flex;align-items:center;gap:8px;border:1px solid var(--g-dim);padding:10px 14px;background:var(--bg-2);position:relative}
.cmd::before{content:">";color:var(--amber);font-weight:700}
.cmd input{flex:1;min-width:0;color:var(--white);caret-color:var(--g)}
.cmd input::placeholder{color:var(--g-dim)}
.cmd .hint{color:var(--g-dim);font-size:12px;white-space:nowrap}
.cmd:focus-within{border-color:var(--g);box-shadow:0 0 0 1px var(--g-dark)}

/* ---------- Hộp ASCII ---------- */
.box{border:1px solid var(--g-dim);padding:22px 20px 20px;position:relative;background:var(--bg-2)}
.box::before,.box::after,.card::before,.card::after,.node::before,.node::after{content:"+";position:absolute;color:var(--g);font-weight:700;line-height:1;background:var(--bg);padding:0 1px}
.box::before,.card::before,.node::before{top:-7px;left:-4px}
.box::after,.card::after,.node::after{bottom:-7px;right:-4px}
.box__t{position:absolute;top:-10px;left:16px;background:var(--bg);padding:0 6px;color:var(--white);font-weight:700;text-transform:uppercase;font-size:12px;letter-spacing:.06em}
.box__t::before{content:"[ "}
.box__t::after{content:" ]"}
.box__t.amber{color:var(--amber)}
.box--pad{padding:28px 24px 24px}
.box--flat{background:transparent}

/* ---------- Nút chữ [ ... ] ---------- */
.b{display:inline-block;padding:4px 6px;color:var(--g);text-transform:uppercase;white-space:nowrap;font-weight:700;letter-spacing:.02em}
.b::before{content:"[ "}
.b::after{content:" ]"}
.b:hover{background:var(--g);color:var(--bg)}
.b--amber{color:var(--amber)}
.b--amber:hover{background:var(--amber);color:var(--bg)}
.b--white{color:var(--white)}
.b--white:hover{background:var(--white);color:var(--bg)}
.b--block{display:block;text-align:center;border:1px solid var(--g);padding:10px}
.b--dim{color:var(--g-dim)}
.b:disabled{color:var(--g-dark);cursor:not-allowed;background:none}

/* ---------- Bố cục lưới ---------- */
.grid{display:grid;gap:22px}
.grid--2{grid-template-columns:1fr 1fr}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--4{grid-template-columns:repeat(4,1fr)}
.layout{display:grid;grid-template-columns:1fr 360px;gap:26px;align-items:start}
.sticky{position:sticky;top:72px}
.section{padding:34px 0}
.section__head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:16px;flex-wrap:wrap}
.section__head p{color:var(--g-dim);font-size:13px}
.prompt{color:var(--g-dim);font-size:12px;text-transform:uppercase;letter-spacing:.08em;margin-bottom:6px}
.prompt::before{content:"$ "}

/* ---------- Hero gõ chữ ---------- */
.hero{padding:40px 0 24px}
.hero__in{display:grid;grid-template-columns:1.2fr .8fr;gap:26px;align-items:stretch}
.hero h1{margin:14px 0 8px}
.hero h1 small{display:block;font-size:12px;color:var(--g-dim);letter-spacing:.2em;margin-bottom:8px}
.hero p{color:var(--g);margin-bottom:18px}
.typer{min-height:5.2em;white-space:pre-wrap;color:var(--g);font-size:13px;line-height:1.75}
.typer .ok{color:var(--white)}
.typer .amb{color:var(--amber)}
.hero__cta{display:flex;gap:10px;flex-wrap:wrap}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1px solid var(--g-dim)}
.stat{padding:12px 14px;border-right:1px solid var(--g-dim)}
.stat:last-child{border-right:0}
.stat b{display:block;color:var(--white);font-size:20px}
.stat span{font-size:11px;color:var(--g-dim);text-transform:uppercase;letter-spacing:.06em}
.ascii{color:var(--g-dim);font-size:10.5px;line-height:1.15;white-space:pre;overflow:hidden;margin-top:14px}
.ascii b{color:var(--g)}

/* ---------- Tab danh mục [ ... ] ---------- */
.tabs{display:flex;flex-wrap:wrap;gap:4px 8px;margin-bottom:14px}
.tab{color:var(--g-dim);padding:4px 4px;text-transform:uppercase;letter-spacing:.03em}
.tab::before{content:"[ "}
.tab::after{content:" ]"}
.tab:hover{color:var(--g)}
.tab.is-active{color:var(--bg);background:var(--g)}
.toolbar{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-bottom:14px;font-size:13px}
.toolbar select{border:1px solid var(--g-dim);padding:5px 8px;background:var(--bg-2);color:var(--g);text-transform:uppercase}
.toolbar select option{background:var(--bg);color:var(--g)}
.toolbar label{color:var(--g-dim)}
.toolbar .count{margin-left:auto;color:var(--g-dim)}

/* ---------- Sổ cái sản phẩm (ledger) ---------- */
.ledger{border:1px solid var(--g-dim);background:var(--bg-2)}
.ledger__h,.row{display:grid;grid-template-columns:64px 84px 1fr 108px 110px 84px;gap:10px;align-items:center;padding:8px 12px}
.ledger__h{border-bottom:1px solid var(--g-dim);color:var(--white);font-size:11px;text-transform:uppercase;letter-spacing:.08em;background:var(--bg-3)}
.row{border-bottom:1px dashed var(--g-dark);font-size:13px}
.row:last-child{border-bottom:0}
.row:hover{background:var(--bg-3)}
.row.in-cart{box-shadow:inset 3px 0 0 var(--amber)}
.row__code{color:var(--g-dim)}
.row__name{display:flex;align-items:baseline;gap:8px;min-width:0}
.row__name b{font-weight:400;color:var(--g);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.row__name em{font-style:normal;color:var(--g-dim);font-size:11px;white-space:nowrap}
.lead{flex:1;height:1em;min-width:14px;background:radial-gradient(circle,currentColor 1px,transparent 1.2px) left center/6px 6px repeat-x;color:var(--g-dark)}
.row__price{text-align:right;color:var(--white);white-space:nowrap}
.row__price s{display:block;color:var(--g-dim);font-size:11px}
.row__badge{font-size:10px;color:var(--amber);text-transform:uppercase}
.row__stock{color:var(--red);font-size:11px;text-transform:uppercase}
.qty{display:inline-flex;align-items:center;gap:2px;white-space:nowrap}
.qty button{color:var(--g);padding:0 2px}
.qty button:hover{color:var(--bg);background:var(--g)}
.qty output{min-width:2ch;text-align:center;color:var(--white)}
.row .b{justify-self:end}
.pf{color:var(--g-dim);display:inline-flex;align-items:center;gap:2px;font-size:16px;line-height:1}
.ph{display:inline-block;width:64px;height:40px;border:1px solid var(--g-dark);background:var(--bg-3) var(--img,none) center/cover no-repeat;
  filter:grayscale(1) contrast(1.2) sepia(1) hue-rotate(80deg) brightness(.9)}
.ph--txt{display:inline-block;width:64px;height:40px;border:1px solid var(--g-dark);color:var(--g-dark);font-size:10px;text-align:center;line-height:38px}
.ledger__empty{padding:28px;text-align:center;color:var(--amber)}

/* Thẻ sản phẩm nổi bật */
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.card{border:1px solid var(--g-dim);padding:14px;background:var(--bg-2);position:relative}
.card .pf{margin-bottom:10px;font-size:20px;width:100%}
.card .ph{flex:1;height:80px}
.card__code{color:var(--g-dim);font-size:11px}
.card h3{font-size:13px;margin:2px 0 6px;font-weight:400;text-transform:none;letter-spacing:0}
.card__price{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:8px}
.card__price b{color:var(--white)}
.card__price s{color:var(--g-dim);font-size:11px}

/* ---------- HÓA ĐƠN (receipt) ---------- */
.receipt{
  background:var(--paper);color:var(--ink);padding:22px 20px 44px;font-size:12.5px;line-height:1.5;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 12px),97.5% 100%,95% calc(100% - 12px),92.5% 100%,90% calc(100% - 12px),87.5% 100%,85% calc(100% - 12px),82.5% 100%,80% calc(100% - 12px),77.5% 100%,75% calc(100% - 12px),72.5% 100%,70% calc(100% - 12px),67.5% 100%,65% calc(100% - 12px),62.5% 100%,60% calc(100% - 12px),57.5% 100%,55% calc(100% - 12px),52.5% 100%,50% calc(100% - 12px),47.5% 100%,45% calc(100% - 12px),42.5% 100%,40% calc(100% - 12px),37.5% 100%,35% calc(100% - 12px),32.5% 100%,30% calc(100% - 12px),27.5% 100%,25% calc(100% - 12px),22.5% 100%,20% calc(100% - 12px),17.5% 100%,15% calc(100% - 12px),12.5% 100%,10% calc(100% - 12px),7.5% 100%,5% calc(100% - 12px),2.5% 100%,0 calc(100% - 12px));
  position:relative;
}
.receipt--wide{font-size:13.5px;padding:30px 34px 54px}
.receipt__head{text-align:center;text-transform:uppercase;margin-bottom:10px}
.receipt__head b{display:block;font-size:16px;letter-spacing:.1em}
.receipt__head span{display:block;color:var(--ink-2);font-size:11px}
.receipt__meta{display:flex;justify-content:space-between;gap:8px;font-size:11px;color:var(--ink-2);flex-wrap:wrap}
.rline{display:flex;gap:8px;align-items:baseline;padding:4px 0;border:0}
.rline .lead{color:var(--ink-2)}
.rline .n{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rline .q{color:var(--ink-2);white-space:nowrap}
.rline .p{white-space:nowrap;text-align:right;min-width:9ch}
.rline .qty button{color:var(--ink);border:1px solid var(--ink-2);line-height:1;padding:0 3px}
.rline .qty button:hover{background:var(--ink);color:var(--paper)}
.rline .qty output{color:var(--ink)}
.rline .rm{color:var(--ink-2);font-size:11px}
.rline .rm:hover{color:var(--red)}
.rline--sub{padding:6px 0}
.rline--sub .n{color:var(--ink-2)}
.rline--total{font-weight:700;font-size:15px;border-top:1px solid var(--ink);border-bottom:1px solid var(--ink);padding:8px 0;margin:6px 0;text-transform:uppercase}
.rline--save{color:#0A6B2C;font-weight:700}
.rsep{border:0;border-top:1px dashed var(--ink-2);margin:8px 0}
.rsep--dbl{border-top:3px double var(--ink)}
.receipt__empty{text-align:center;padding:18px 0;color:var(--ink-2)}
.receipt__empty::before{content:"-- "}
.receipt__empty::after{content:" --"}
.barcode{height:44px;margin:14px auto 4px;width:82%;
  background:repeating-linear-gradient(90deg,var(--ink) 0 2px,transparent 2px 4px,var(--ink) 4px 5px,transparent 5px 8px,var(--ink) 8px 11px,transparent 11px 13px,var(--ink) 13px 14px,transparent 14px 17px,var(--ink) 17px 19px,transparent 19px 22px)}
.barcode + small{display:block;text-align:center;letter-spacing:.3em;font-size:11px;color:var(--ink-2)}
.receipt__foot{text-align:center;text-transform:uppercase;font-size:11px;color:var(--ink-2);margin-top:12px}
.receipt .b{color:var(--ink);font-size:13px}
.receipt .b:hover{background:var(--ink);color:var(--paper)}
.receipt .b--block{border-color:var(--ink);margin-top:12px}
.receipt input,.receipt select{border:1px solid var(--ink-2);padding:6px 8px;color:var(--ink);width:100%;background:#fff}
.receipt input::placeholder{color:#999}
.receipt .coupon{display:flex;gap:6px;margin:8px 0}
.receipt .coupon input{text-transform:uppercase}
.receipt .msg{font-size:11px;min-height:1.4em}
.receipt .msg.ok{color:#0A6B2C}
.receipt .msg.err{color:#B00020}

/* ---------- Khung giờ giao ---------- */
.slots{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.slot{border:1px solid var(--g-dim);padding:8px 6px;text-align:center;font-size:12.5px;color:var(--g);background:var(--bg-2)}
.slot::before{content:"["}
.slot::after{content:"]"}
.slot:hover{border-color:var(--g);color:var(--white)}
.slot.is-active{background:var(--g);color:var(--bg);border-color:var(--g)}
.slot.is-full{color:var(--g-dark);border-style:dashed;cursor:not-allowed}
.slot.is-full::after{content:"] HET";color:var(--red)}
.slot small{display:block;font-size:10px;color:inherit;opacity:.8}

/* ---------- Cửa hàng = node ---------- */
.node{border:1px solid var(--g-dim);padding:16px 18px;background:var(--bg-2);position:relative}
.node__h{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:8px}
.node__h h3{font-size:14px}
.led{display:inline-block;width:8px;height:8px;background:var(--g);margin-right:6px;animation:pulse 2s infinite;vertical-align:middle}
.led--amber{background:var(--amber)}
.led--red{background:var(--red);animation:none}
@keyframes pulse{50%{opacity:.35}}
.kv{display:grid;grid-template-columns:9ch 1fr;gap:2px 10px;font-size:12.5px}
.kv dt{color:var(--g-dim);text-transform:uppercase;font-size:11px}
.kv dd{color:var(--g);overflow-wrap:anywhere}
.kv dd b{color:var(--white)}
.node .bar{display:block;margin-top:10px;color:var(--g-dim);font-size:12px}
.node .bar i{font-style:normal;color:var(--g)}
.map{border:1px solid var(--g-dim);background:var(--bg-2);padding:16px;overflow:auto}
.map pre{font-size:11.5px;line-height:1.3;color:var(--g-dim);white-space:pre}
.map pre b{color:var(--g);font-weight:700}
.map pre i{font-style:normal;color:var(--amber);font-weight:700}
.map pre u{text-decoration:none;color:var(--white)}
.legend{display:flex;gap:18px;flex-wrap:wrap;font-size:12px;color:var(--g-dim);margin-top:10px}

/* ---------- Form dạng prompt ---------- */
.pform{display:grid;gap:10px}
.pform .f{display:grid;grid-template-columns:14ch 1fr;gap:8px;align-items:center}
.pform label{color:var(--g-dim);text-transform:uppercase;font-size:12px;white-space:nowrap}
.pform label::before{content:"> "}
.pform input,.pform select,.pform textarea{border:0;border-bottom:1px solid var(--g-dim);padding:6px 4px;color:var(--white);background:transparent;width:100%;caret-color:var(--g)}
.pform select option{background:var(--bg);color:var(--g)}
.pform input:focus,.pform select:focus,.pform textarea:focus{border-bottom-color:var(--g);background:var(--bg-3)}
.pform input::placeholder,.pform textarea::placeholder{color:var(--g-dark)}
.pform .f--full{grid-template-columns:1fr}
.pform .radios{display:flex;gap:14px;flex-wrap:wrap;font-size:13px}
.pform .radios label{color:var(--g);text-transform:none}
.pform .radios label::before{content:none}
.pform input[type=radio],.pform input[type=checkbox]{width:auto;accent-color:var(--g);margin-right:4px;vertical-align:middle}
.pform .note{color:var(--g-dim);font-size:12px}
.receipt .pform label{color:var(--ink-2)}
.receipt .pform input,.receipt .pform select{border:0;border-bottom:1px solid var(--ink-2);background:transparent;color:var(--ink);padding:4px 2px}
.receipt .pform input:focus{background:#fff;border-bottom-color:var(--ink)}
.receipt .pform .radios label{color:var(--ink)}
.receipt .pform input[type=radio]{accent-color:var(--ink)}

/* ---------- Log / theo dõi đơn ---------- */
.progress{color:var(--white);font-size:clamp(14px,2.4vw,22px);letter-spacing:.05em;white-space:nowrap;overflow:hidden;margin:10px 0}
.progress i{font-style:normal;color:var(--g)}
.progress s{text-decoration:none;color:var(--g-dark)}
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:6px;font-size:11px;text-transform:uppercase;color:var(--g-dim);margin-bottom:16px}
.steps span{border-top:2px solid var(--g-dark);padding-top:6px}
.steps span.done{color:var(--g);border-color:var(--g)}
.steps span.now{color:var(--amber);border-color:var(--amber)}
.log{border:1px solid var(--g-dim);background:var(--bg-2);padding:14px 16px;font-size:12.5px;line-height:1.8;max-height:360px;overflow:auto}
.log div{white-space:pre-wrap}
.log .t{color:var(--g-dim)}
.log .ok{color:var(--g)}
.log .warn{color:var(--amber)}
.log .info{color:var(--white)}
.log .wait{animation:blink 1s steps(2,start) infinite}
.demo-codes{font-size:12px;color:var(--g-dim)}
.demo-codes code{color:var(--amber);cursor:pointer}
.demo-codes code:hover{text-decoration:underline}

/* ---------- Bảng ---------- */
.tbl{width:100%;border-collapse:collapse;font-size:13px}
.tbl th,.tbl td{text-align:left;padding:7px 8px;border-bottom:1px dashed var(--g-dark)}
.tbl th{color:var(--white);font-size:11px;text-transform:uppercase;letter-spacing:.06em;border-bottom:1px solid var(--g-dim)}
.tbl td.r,.tbl th.r{text-align:right}

/* ---------- Danh sách / ghi chú ---------- */
.list li{padding:3px 0 3px 1.4em;text-indent:-1.4em}
.list li::before{content:"- ";color:var(--g-dim)}
.list--ok li::before{content:"[x] ";color:var(--g)}
.notice{border:1px dashed var(--amber);color:var(--amber);padding:10px 14px;font-size:13px}
.notice::before{content:"! "}

/* ---------- Thanh trạng thái cố định ---------- */
.statusbar{position:fixed;left:0;right:0;bottom:0;z-index:180;height:var(--bar);background:var(--g);color:var(--bg);font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.04em}
.statusbar__in{display:flex;align-items:center;height:100%;gap:0;overflow:hidden;white-space:nowrap}
.statusbar__in span{padding:0 12px;border-right:1px solid rgba(11,15,12,.35)}
.statusbar__in span:last-child{border-right:0;margin-left:auto}
.statusbar a:hover{text-decoration:underline;color:var(--bg)}

/* ---------- Chân trang kiểu hóa đơn ---------- */
.footer{margin-top:40px;border-top:1px dashed var(--g-dim);padding:26px 0 10px;font-size:12.5px}
.footer__grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:22px}
.footer h4{color:var(--white);margin-bottom:8px}
.footer h4::before{content:"## ";color:var(--g-dim)}
.footer a{display:block;color:var(--g-dim);padding:2px 0}
.footer a::before{content:"> "}
.footer a:hover{color:var(--g)}
.footer p{color:var(--g-dim)}
.footer__thanks{text-align:center;margin-top:26px;padding-top:16px;border-top:1px dashed var(--g-dim);color:var(--white);text-transform:uppercase;letter-spacing:.15em}
.footer__thanks small{display:block;color:var(--g-dim);letter-spacing:.05em;text-transform:none;margin-top:4px}

/* ---------- Tiêu đề trang con ---------- */
.page-h{padding:30px 0 10px}
.page-h .crumb{color:var(--g-dim);font-size:12px;margin-bottom:8px}
.page-h .crumb a:hover{color:var(--g)}
.page-h p{color:var(--g-dim);margin-top:8px}

/* ---------- Responsive ---------- */
@media (max-width:1100px){
  .cards{grid-template-columns:repeat(3,1fr)}
  .layout{grid-template-columns:1fr 320px}
  .ledger__h,.row{grid-template-columns:56px 84px 1fr 100px 100px 76px}
}
@media (max-width:980px){
  .hero__in{grid-template-columns:1fr}
  .layout{grid-template-columns:1fr}
  .sticky{position:static}
  .grid--3,.grid--4{grid-template-columns:1fr 1fr}
  .footer__grid{grid-template-columns:1fr 1fr}
  .slots{grid-template-columns:repeat(3,1fr)}
  .ledger__h{display:none}
  .row{grid-template-columns:84px 1fr auto;grid-template-areas:"pic name price" "code qty btn";row-gap:6px}
  .row__code,.row .qty{align-self:center}
  .row__pic{grid-area:pic}.row__code{grid-area:code}.row__name{grid-area:name}.row .qty{grid-area:qty}.row__price{grid-area:price}.row .b{grid-area:btn}
  .nav{display:none}
  .nav.is-open{display:flex;position:fixed;top:52px;left:0;right:0;flex-direction:column;background:var(--bg);border-bottom:1px solid var(--g);padding:8px 3%;z-index:160;margin:0}
  .nav.is-open .nav__link{padding:10px 8px;border-bottom:1px dashed var(--g-dark)}
  .burger{display:inline-block;margin-left:auto}
  .steps{font-size:10px}
}
@media (max-width:640px){
  :root{--fs:13px}
  .cards{grid-template-columns:1fr 1fr;gap:10px}
  .grid--2,.grid--3,.grid--4,.footer__grid{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr 1fr}
  .stat b{font-size:16px}
  .slots{grid-template-columns:1fr 1fr}
  .pform .f{grid-template-columns:1fr;gap:2px}
  .receipt--wide{padding:22px 16px 46px}
  .statusbar__in span{padding:0 8px;font-size:10.5px}
  .statusbar__in span.sb-hide{display:none}
  .row{grid-template-columns:72px 1fr auto;padding:8px}
  .cmd .hint{display:none}
  .ascii{font-size:8px}
  .kv{grid-template-columns:1fr}
  .box{padding:20px 14px 16px}
}
ol.list li::before{content:none}