:root{
  color-scheme:light;
  --bg:#EDF1EF; --surface:#FFFFFF; --surface-2:#F5F8F6; --ink:#13221E; --muted:#5A6B66; --line:#D5DEDA;
  --accent:#0B6B53; --accent-hover:#08563F; --accent-ink:#FFFFFF; --accent-soft:#DDEFE8;
  --amber:#9A5C05; --amber-soft:#FBEACB; --red:#B3261E; --red-soft:#F9DEDB; --blue:#1F5C99; --blue-soft:#DDE9F6;
  --paper:#FFFEF8; --paper-ink:#1B1B18; --shadow:0 1px 2px rgba(19,34,30,.06),0 6px 20px rgba(19,34,30,.06);
  --body:"Segoe UI Variable Text","Segoe UI",system-ui,-apple-system,Roboto,sans-serif;
  --display:"Segoe UI Variable Display","Segoe UI",system-ui,sans-serif;
  --mono:"Cascadia Mono","Consolas","SFMono-Regular",Menlo,monospace;
}
@media (prefers-color-scheme: dark){
  :root{
    color-scheme:dark;
    --bg:#0D1513; --surface:#15201D; --surface-2:#1B2824; --ink:#E3ECE8; --muted:#91A39E; --line:#283834;
    --accent:#3DBE92; --accent-hover:#5BD1A7; --accent-ink:#04221A; --accent-soft:#163A2F;
    --amber:#EAA940; --amber-soft:#3A2B10; --red:#F28A80; --red-soft:#3E1C19; --blue:#7FB3EA; --blue-soft:#172C44;
    --paper:#F3F0E4; --paper-ink:#1B1B18; --shadow:0 1px 2px rgba(0,0,0,.3),0 8px 24px rgba(0,0,0,.25);
  }
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.45 var(--body);-webkit-font-smoothing:antialiased}
[hidden]{display:none!important}
button,input,select,textarea{font:inherit;color:inherit}
.money,.num{font-variant-numeric:tabular-nums}
h1,h2,h3{font-family:var(--display);margin:0;font-weight:700;letter-spacing:-.01em}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
kbd{font:600 10px var(--mono);padding:1px 4px;border-radius:4px;border:1px solid currentColor;opacity:.55;margin-left:4px;vertical-align:middle}
@media (prefers-reduced-motion: reduce){*{transition:none!important;animation:none!important}}
.m0{margin:0}
.stack{display:flex;flex-direction:column;gap:12px}
.row-btns{display:flex;gap:8px;flex-wrap:wrap;align-items:center}

/* header */
.top{position:sticky;top:0;z-index:20;background:var(--surface);border-bottom:1px solid var(--line)}
.top-in{max-width:1400px;margin:0 auto;padding-inline:16px;display:flex;align-items:center;gap:16px;min-height:58px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;min-width:0;padding-block:8px}
.brand-mark{width:32px;height:32px;border-radius:8px;background:var(--accent);color:var(--accent-ink);display:grid;place-items:center;font:700 16px var(--display);flex:none}
.brand h1{font-size:18px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:40vw}
.today{font-size:12px;color:var(--muted);white-space:nowrap}
.today b{color:var(--ink)}
nav.tabs{display:flex;gap:2px;overflow-x:auto;scrollbar-width:none}
.tab{border:0;background:none;padding:18px 12px 16px;font-weight:600;font-size:14px;color:var(--muted);border-bottom:2px solid transparent;cursor:pointer;white-space:nowrap}
.tab[aria-selected="true"]{color:var(--accent);border-bottom-color:var(--accent)}
.who{margin-left:auto;display:flex;align-items:center;gap:10px}
.staff{font-weight:600;font-size:14px}
.sync{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:var(--surface-2);border-radius:999px;padding:4px 10px;font-size:12px;font-weight:600;cursor:pointer;color:var(--muted)}
.sync .dot{width:8px;height:8px;border-radius:50%;background:var(--muted)}
.sync.ok .dot{background:var(--accent)} .sync.ok{color:var(--accent)}
.sync.wait .dot{background:var(--amber)} .sync.wait{color:var(--amber)}
.sync.err .dot{background:var(--red)} .sync.err{color:var(--red)}
@media (max-width:900px){nav.tabs{order:3;width:100%;border-top:1px solid var(--line)}.tab{flex:1;padding:10px 6px}.tab kbd{display:none}}

main{max-width:1400px;margin:0 auto;padding-inline:16px;padding-block:16px 60px}

/* generic */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:1px solid var(--line);background:var(--surface);border-radius:10px;padding:9px 14px;font-weight:600;font-size:14px;cursor:pointer;min-height:40px}
.btn:hover{border-color:var(--muted)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.btn.primary:hover{background:var(--accent-hover)}
.btn.danger{color:var(--red);border-color:color-mix(in srgb,var(--red) 40%,var(--line))}
.btn.danger.armed{background:var(--red);color:#fff;border-color:var(--red)}
.btn.ghost{border-color:transparent;background:transparent}
.btn.sm{min-height:32px;padding:5px 10px;font-size:13px;border-radius:8px}
.btn:disabled{opacity:.45;cursor:not-allowed}
.field{display:flex;flex-direction:column;gap:5px;min-width:0}
.field label,.lbl{font-size:12px;font-weight:600;color:var(--muted);letter-spacing:.03em;text-transform:uppercase}
.input{width:100%;border:1px solid var(--line);background:var(--surface);border-radius:10px;padding:9px 12px;min-height:42px}
.input:focus{border-color:var(--accent);outline:none;box-shadow:0 0 0 3px var(--accent-soft)}
.grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.pill{display:inline-flex;align-items:center;padding:2px 8px;border-radius:999px;font-size:12px;font-weight:600;white-space:nowrap}
.pill.ok{background:var(--accent-soft);color:var(--accent)}
.pill.low{background:var(--amber-soft);color:var(--amber)}
.pill.out{background:var(--red-soft);color:var(--red)}
.pill.info{background:var(--blue-soft);color:var(--blue)}
.muted{color:var(--muted)} .small{font-size:13px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:14px}
.banner{display:flex;gap:10px;align-items:center;flex-wrap:wrap;justify-content:space-between;padding:10px 14px;border-radius:12px;background:var(--blue-soft);color:var(--blue);font-size:14px;margin-bottom:14px}
.banner.warn{background:var(--amber-soft);color:var(--amber)}
.banner.err{background:var(--red-soft);color:var(--red)}
.empty{padding:28px 16px;text-align:center;color:var(--muted)}
.section-h{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:12px}
.section-h h2{font-size:22px}
.toolbar{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-bottom:12px}
.toolbar>.input{flex:1 1 220px;width:auto}
.toolbar select.input{flex:0 1 190px}
.more{margin-top:10px;font-size:13px;color:var(--muted)}
body.cashier .admin-only{display:none!important}

/* sell */
.sell{display:grid;grid-template-columns:minmax(0,1fr) 420px;gap:16px;align-items:start}
.scan{position:relative}
.scan .input{min-height:52px;font-size:17px;padding-left:44px;border-radius:12px;border-width:1.5px}
.scan svg{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--muted)}
.chips{display:flex;gap:6px;overflow-x:auto;padding-block:10px}
.chip{border:1px solid var(--line);background:var(--surface);border-radius:999px;padding:6px 12px;font-size:13px;font-weight:600;cursor:pointer;white-space:nowrap;color:var(--muted)}
.chip[aria-pressed="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.plist{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:8px}
.prod{display:flex;flex-direction:column;text-align:left;gap:6px;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:11px 12px;cursor:pointer;min-height:88px}
.prod:hover{border-color:var(--accent)}
.prod:active{transform:scale(.985)}
.prod .pn{font-weight:600;font-size:14px;line-height:1.3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.prod .pm{display:flex;justify-content:space-between;align-items:end;gap:6px;margin-top:auto}
.prod .pp{font:600 15px var(--mono)}
.prod.is-out{opacity:.7}
.cart{position:sticky;top:74px;display:flex;flex-direction:column;max-height:calc(100vh - 90px);box-shadow:var(--shadow)}
.cart-h{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:12px 14px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.cart-h h2{font-size:18px}
.lines{overflow-y:auto;flex:1 1 auto;min-height:80px}
.line{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:4px 10px;padding:10px 14px;border-bottom:1px dashed var(--line)}
.line .ln{font-weight:600;font-size:14px}
.line .lt{font:600 14px var(--mono);text-align:right}
.qty{display:flex;align-items:center;gap:4px}
.qty button{width:32px;height:32px;border-radius:8px;border:1px solid var(--line);background:var(--surface-2);font-weight:700;cursor:pointer}
.qty input{width:60px;text-align:center;border:1px solid var(--line);border-radius:8px;height:32px;background:var(--surface);font-family:var(--mono)}
.line .lx{justify-self:end;align-self:center}
.cart-f{padding:12px 14px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:10px;background:var(--surface-2);border-radius:0 0 14px 14px}
.subrow{display:flex;justify-content:space-between;align-items:center;font-size:14px;gap:10px}
.subrow .money{font-family:var(--mono)}
.sm-in{width:110px;min-height:34px;padding:5px 10px;text-align:right;font-family:var(--mono)}
.total{display:flex;justify-content:space-between;align-items:baseline;border-top:1px solid var(--line);padding-top:8px}
.total .tv{font:700 28px var(--mono);letter-spacing:-.02em}
.seg{display:grid;grid-template-columns:repeat(3,1fr);background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:3px;gap:3px}
.seg button{border:0;background:none;border-radius:7px;padding:8px 4px;font-weight:600;font-size:14px;cursor:pointer;color:var(--muted)}
.seg button[aria-pressed="true"]{background:var(--accent);color:var(--accent-ink)}
.quick{display:flex;gap:6px;flex-wrap:wrap}
.change{display:flex;justify-content:space-between;font-size:15px}
.change b{font-family:var(--mono)}
.charge{min-height:54px;font-size:17px;border-radius:12px}
@media (max-width:980px){.sell{grid-template-columns:1fr}.cart{position:static;max-height:none}}

/* lists */
.row{display:grid;align-items:center;gap:10px;padding:11px 14px;border:0;border-bottom:1px solid var(--line);cursor:pointer;background:none;text-align:left;width:100%}
.row:last-child{border-bottom:0}
.row:hover{background:var(--surface-2)}
.row-stock{grid-template-columns:minmax(0,2.2fr) minmax(0,1fr) 90px 90px 110px}
.row-cust{grid-template-columns:minmax(0,2fr) minmax(0,1fr) 130px}
.row-tx{grid-template-columns:90px minmax(0,1.4fr) 90px 90px 110px}
.row-staff{grid-template-columns:minmax(0,1fr) auto auto;cursor:default}
.row.head{cursor:default;font-size:12px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.03em;background:var(--surface-2);border-radius:14px 14px 0 0}
.r-name{font-weight:600;min-width:0;overflow:hidden;text-overflow:ellipsis}
.r-sub{font-size:12px;color:var(--muted);font-weight:400;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.r-num{text-align:right;font-family:var(--mono);font-size:14px}
.r-end{text-align:right}
.row.void{opacity:.55}
.row.void .r-num{text-decoration:line-through}
@media (max-width:720px){.row-stock,.row-cust{grid-template-columns:minmax(0,1fr) auto}.row-tx{grid-template-columns:70px minmax(0,1fr) auto}.hide-sm{display:none}}

/* kpis & reports */
.kpis{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin-bottom:14px}
.kpi{padding:14px 16px}
.kpi .k{font-size:12px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}
.kpi .v{font:700 24px var(--mono);letter-spacing:-.02em;margin-top:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.kpi .s{font-size:12px;color:var(--muted);margin-top:2px}
@media (max-width:820px){.kpis{grid-template-columns:repeat(2,minmax(0,1fr))}}
.cols2{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:14px;margin-bottom:14px;align-items:start}
@media (max-width:820px){.cols2{grid-template-columns:1fr}}
.panel{padding:16px}
.panel h3{font-size:16px}
.kv{display:flex;justify-content:space-between;gap:10px;padding:7px 0;border-bottom:1px dashed var(--line);font-size:14px}
.kv:last-child{border-bottom:0}
.kv b{font-family:var(--mono);font-weight:600}
.kv.big{font-size:16px;font-weight:700;border-top:1px solid var(--ink);border-bottom:0;padding-top:10px;margin-top:4px}
.chart{width:100%;height:auto;display:block}
.chart text{fill:var(--muted);font:11px var(--body)}
.bar-row{display:grid;grid-template-columns:minmax(0,1fr) 70px 90px;gap:10px;align-items:center;padding:6px 0;font-size:14px}
.bar-row .bn{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.bar-track{grid-column:1 / -1;height:4px;border-radius:2px;background:var(--surface-2);margin-top:-2px}
.bar-fill{height:100%;border-radius:2px;background:var(--accent)}

/* modal */
.modal{position:fixed;inset:0;z-index:60;background:rgba(8,16,14,.5);display:flex;align-items:flex-start;justify-content:center;padding:32px 16px;overflow-y:auto}
.sheet{background:var(--surface);border-radius:16px;width:100%;max-width:580px;box-shadow:0 20px 60px rgba(0,0,0,.3);display:flex;flex-direction:column}
.sheet.narrow{max-width:440px}
.sheet-h{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:16px 18px;border-bottom:1px solid var(--line)}
.sheet-h h2{font-size:19px}
.sheet-b{padding:16px 18px;display:flex;flex-direction:column;gap:12px}
.sheet-f{display:flex;gap:8px;justify-content:flex-end;flex-wrap:wrap;padding:14px 18px;border-top:1px solid var(--line)}
.sheet-f .spacer{flex:1}
.slip{background:var(--paper);color:var(--paper-ink);font:12.5px/1.45 var(--mono);padding:18px 14px 22px;margin:0;white-space:pre;overflow-x:auto;border-radius:4px;box-shadow:inset 0 0 0 1px rgba(0,0,0,.1);align-self:center;max-width:100%}
.ledger{max-height:280px;overflow-y:auto;border:1px solid var(--line);border-radius:10px}
.ledger .kv{padding:8px 12px}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);z-index:80;background:var(--ink);color:var(--bg);padding:10px 16px;border-radius:10px;font-weight:600;font-size:14px;box-shadow:var(--shadow);max-width:calc(100% - 32px)}
.toast.err{background:var(--red);color:#fff}
code.k{font-family:var(--mono);font-size:12px;background:var(--surface-2);border:1px solid var(--line);padding:1px 5px;border-radius:5px}

/* gate (setup + lock) */
.gate{position:fixed;inset:0;z-index:100;background:var(--bg);display:flex;align-items:center;justify-content:center;padding:24px 16px;overflow-y:auto}
.gate-card{width:100%;max-width:460px;background:var(--surface);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:24px;display:flex;flex-direction:column;gap:14px}
.gate-card h2{font-size:24px}
.who-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:8px}
.who-btn{border:1px solid var(--line);background:var(--surface-2);border-radius:12px;padding:14px 10px;font-weight:600;cursor:pointer}
.who-btn[aria-pressed="true"]{border-color:var(--accent);background:var(--accent-soft);color:var(--accent)}
.pin-dots{display:flex;gap:10px;justify-content:center;padding:6px 0}
.pin-dots span{width:14px;height:14px;border-radius:50%;border:2px solid var(--muted)}
.pin-dots span.on{background:var(--ink);border-color:var(--ink)}
.pinpad{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.pinpad button{min-height:56px;font:600 20px var(--mono);border:1px solid var(--line);background:var(--surface-2);border-radius:12px;cursor:pointer}

/* print */
#printArea{display:none}
@media print{
  body>*:not(#printArea){display:none!important}
  body{background:#fff!important;color:#000!important}
  #printArea{display:block}
  #printArea pre{margin:0;font-family:"Consolas","Courier New",monospace;color:#000;white-space:pre}
}