/* Super Shop POS - hand-written responsive CSS (no external libraries) */
:root{
  --bg:#f1f5f9; --card:#fff; --ink:#0f172a; --muted:#64748b; --line:#e2e8f0;
  --brand:#0f766e; --brand-d:#115e59; --brand-l:#ccfbf1;
  --ok:#15803d; --warn:#b45309; --bad:#b91c1c; --info:#1d4ed8;
  --radius:10px; --shadow:0 1px 2px rgba(15,23,42,.06),0 1px 3px rgba(15,23,42,.08);
  --side:232px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font:15px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans Bengali","Kalpurush",sans-serif;background:var(--bg);color:var(--ink);-webkit-text-size-adjust:100%}
a{color:var(--brand);text-decoration:none}a:hover{text-decoration:underline}
h1,h2,h3{margin:0;line-height:1.25}
.ic{vertical-align:-4px;flex:none}
.muted{color:var(--muted)}.small{font-size:12.5px}.right{text-align:right}.center{text-align:center}.nowrap{white-space:nowrap}
.bold{font-weight:700}.mt{margin-top:14px}.mb{margin-bottom:14px}.hide{display:none!important}
.ok{color:var(--ok)}.warn{color:var(--warn)}.bad{color:var(--bad)}

/* ----- shell ----- */
.shell{display:flex;min-height:100vh}
.sidebar{width:var(--side);background:#0b1f2a;color:#cbd5e1;position:fixed;inset:0 auto 0 0;z-index:40;display:flex;flex-direction:column;transition:transform .2s}
.brand{padding:16px 16px 12px;color:#fff;font-weight:700;font-size:16px;display:flex;align-items:center;gap:10px;border-bottom:1px solid rgba(255,255,255,.08)}
.brand .logo{width:32px;height:32px;border-radius:8px;background:var(--brand);display:grid;place-items:center;color:#fff}
.nav{padding:8px;overflow:auto;flex:1}
.nav a{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:8px;color:#cbd5e1;font-weight:500;margin-bottom:2px}
.nav a:hover{background:rgba(255,255,255,.06);text-decoration:none;color:#fff}
.nav a.active{background:var(--brand);color:#fff}
.nav .sec{font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:#64748b;padding:12px 12px 4px}
.sidefoot{padding:10px 14px;border-top:1px solid rgba(255,255,255,.08);font-size:13px}
.main{margin-left:var(--side);flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{background:var(--card);border-bottom:1px solid var(--line);padding:10px 16px;display:flex;align-items:center;gap:12px;position:sticky;top:0;z-index:30}
.topbar h1{font-size:18px;flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.burger{display:none;background:none;border:0;padding:6px;cursor:pointer;color:var(--ink)}
.scrim{display:none}
.content{padding:16px;max-width:1280px;width:100%;margin:0 auto}
.userbox{display:flex;align-items:center;gap:10px;font-size:13px}
.userbox .chip{background:var(--brand-l);color:var(--brand-d);padding:2px 8px;border-radius:99px;font-weight:600;font-size:12px}

@media(max-width:900px){
  .sidebar{transform:translateX(-100%)}
  body.nav-open .sidebar{transform:none;box-shadow:0 0 40px rgba(0,0,0,.4)}
  body.nav-open .scrim{display:block;position:fixed;inset:0;background:rgba(15,23,42,.5);z-index:35}
  .main{margin-left:0}
  .burger{display:block}
  .content{padding:12px}
  .userbox .uname{display:none}
}

/* ----- cards / grid ----- */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:14px}
.card h2{font-size:15px;margin-bottom:10px}
.card.flush{padding:0;overflow:hidden}
.card-h{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 14px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.card-h h2{margin:0}
.grid{display:grid;gap:12px}
.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.g4{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.g2,.g3{grid-template-columns:1fr}.g4{grid-template-columns:repeat(2,1fr)}}
.stat{display:flex;flex-direction:column;gap:2px;padding:14px;border-radius:var(--radius);background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow);color:inherit}
a.stat:hover{text-decoration:none;border-color:var(--brand)}
.stat .lbl{font-size:12.5px;color:var(--muted);display:flex;align-items:center;gap:6px}
.stat .val{font-size:21px;font-weight:700}
.stat .sub{font-size:12px;color:var(--muted)}
.stat.good .val{color:var(--ok)}.stat.badx .val{color:var(--bad)}.stat.warnx .val{color:var(--warn)}
.bars{display:flex;align-items:flex-end;gap:8px;height:140px;padding-top:8px}
.bars .b{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%;min-width:0}
.bars .b i{display:block;width:100%;max-width:38px;background:var(--brand);border-radius:6px 6px 0 0;min-height:2px}
.bars .b span{font-size:11px;color:var(--muted);margin-top:4px;white-space:nowrap}
.bars .b em{font-size:10.5px;font-style:normal;color:var(--ink);margin-bottom:2px}

/* ----- buttons / forms ----- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:9px 14px;border-radius:8px;border:1px solid var(--line);background:#fff;color:var(--ink);font:inherit;font-weight:600;cursor:pointer;line-height:1.2;white-space:nowrap}
.btn:hover{background:#f8fafc;text-decoration:none}
.btn.primary{background:var(--brand);border-color:var(--brand);color:#fff}.btn.primary:hover{background:var(--brand-d)}
.btn.danger{background:#fff;color:var(--bad);border-color:#fecaca}.btn.danger:hover{background:#fef2f2}
.btn.sm{padding:5px 9px;font-size:13px}.btn.lg{padding:13px 18px;font-size:16px}.btn.block{width:100%}
.btn[disabled]{opacity:.55;cursor:not-allowed}
.actions{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
label.l{display:block;font-weight:600;font-size:13px;margin:0 0 4px;color:#334155}
input[type=text],input[type=number],input[type=password],input[type=date],input[type=search],input[type=tel],input[type=email],select,textarea{
  width:100%;padding:9px 11px;border:1px solid #cbd5e1;border-radius:8px;font:inherit;background:#fff;color:var(--ink);min-height:40px}
textarea{min-height:70px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:2px solid var(--brand-l);border-color:var(--brand)}
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.form-grid .full{grid-column:1/-1}
@media(max-width:640px){.form-grid{grid-template-columns:1fr}}
.field{display:flex;flex-direction:column}
.check{display:flex;align-items:center;gap:8px;font-weight:500}
.check input{width:auto;min-height:0}
.hint{font-size:12px;color:var(--muted);margin-top:3px}
.filters{display:flex;flex-wrap:wrap;gap:8px;align-items:flex-end}
.filters .field{min-width:130px}
.filters .grow{flex:1;min-width:180px}

/* ----- tables ----- */
.tbl-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
table.tbl{width:100%;border-collapse:collapse;font-size:14px}
.tbl th{background:#f8fafc;text-align:left;font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);padding:9px 12px;border-bottom:1px solid var(--line);white-space:nowrap}
.tbl td{padding:9px 12px;border-bottom:1px solid #f1f5f9;vertical-align:middle}
.tbl tr:hover td{background:#fafcff}
.tbl td.num,.tbl th.num{text-align:right;font-variant-numeric:tabular-nums}
.tbl tfoot td{font-weight:700;background:#f8fafc}
.empty{padding:28px;text-align:center;color:var(--muted)}
.badge{display:inline-block;padding:2px 8px;border-radius:99px;font-size:12px;font-weight:600;background:#e2e8f0;color:#334155}
.badge.green{background:#dcfce7;color:#166534}.badge.red{background:#fee2e2;color:#991b1b}.badge.amber{background:#fef3c7;color:#92400e}.badge.blue{background:#dbeafe;color:#1e40af}
.pager{display:flex;flex-wrap:wrap;gap:4px;align-items:center;padding:10px 12px;justify-content:flex-end}
.pager-info{color:var(--muted);font-size:13px;margin-right:auto;padding:10px 12px}
.pager .pager-info{padding:0}
.pg{min-width:34px;height:34px;display:inline-grid;place-items:center;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--ink);font-size:13px}
.pg.active{background:var(--brand);color:#fff;border-color:var(--brand)}.pg.disabled{opacity:.45}
a.pg:hover{text-decoration:none;background:#f8fafc}

/* mobile: stack table rows as cards when .stack is used */
@media(max-width:640px){
  .tbl.stack thead{display:none}
  .tbl.stack tr{display:block;border-bottom:8px solid var(--bg);padding:6px 0}
  .tbl.stack td{display:flex;justify-content:space-between;gap:12px;border:0;padding:5px 12px;text-align:right}
  .tbl.stack td::before{content:attr(data-l);color:var(--muted);font-size:12px;text-align:left;flex:none}
  .tbl.stack td.num{text-align:right}
}

/* ----- flash / modal / toast ----- */
.flash{padding:10px 14px;border-radius:8px;margin-bottom:12px;border:1px solid;display:flex;gap:8px;align-items:flex-start}
.flash.ok{background:#f0fdf4;border-color:#bbf7d0;color:#166534}.flash.err{background:#fef2f2;border-color:#fecaca;color:#991b1b}.flash.info{background:#eff6ff;border-color:#bfdbfe;color:#1e40af}
.modal{position:fixed;inset:0;background:rgba(15,23,42,.55);z-index:100;display:none;align-items:flex-end;justify-content:center;padding:0}
.modal.open{display:flex}
.modal .box{background:#fff;width:100%;max-width:560px;max-height:92vh;overflow:auto;border-radius:16px 16px 0 0;padding:16px}
@media(min-width:640px){.modal{align-items:center;padding:16px}.modal .box{border-radius:14px}}
.modal .box h3{font-size:17px;margin-bottom:10px;display:flex;justify-content:space-between;align-items:center}
.toast{position:fixed;left:50%;bottom:22px;transform:translateX(-50%);background:#0f172a;color:#fff;padding:10px 16px;border-radius:99px;z-index:200;font-size:14px;box-shadow:0 8px 24px rgba(0,0,0,.25);max-width:92vw}
.toast.err{background:#b91c1c}

/* ----- autocomplete picker ----- */
.picker{position:relative}
.picker .list{position:absolute;left:0;right:0;top:100%;background:#fff;border:1px solid var(--line);border-radius:8px;box-shadow:0 10px 28px rgba(15,23,42,.18);z-index:60;max-height:300px;overflow:auto;display:none}
.picker .list.open{display:block}
.picker .it{padding:9px 12px;border-bottom:1px solid #f1f5f9;cursor:pointer;display:flex;justify-content:space-between;gap:10px}
.picker .it:hover,.picker .it.hot{background:var(--brand-l)}
.picker .it small{color:var(--muted)}

/* ----- login ----- */
.login-wrap{min-height:100vh;display:grid;place-items:center;padding:16px;background:linear-gradient(135deg,#0b1f2a,#0f766e)}
.login-card{background:#fff;border-radius:16px;padding:26px 22px;width:100%;max-width:380px;box-shadow:0 20px 50px rgba(0,0,0,.3)}
.login-card h1{font-size:22px;margin-bottom:4px}

/* ----- line-item editors (purchase / adjust) ----- */
.lines td input{min-height:36px;padding:6px 8px}
.lines td.pn{min-width:220px}
.totals{margin-left:auto;max-width:340px}
.totals .r{display:flex;justify-content:space-between;padding:5px 0;gap:12px}
.totals .r.big{font-size:18px;font-weight:700;border-top:2px solid var(--ink);margin-top:6px;padding-top:8px}

/* ================= POS ================= */
body.pos-body{overflow:hidden}
.pos{display:grid;grid-template-columns:1fr 410px;height:100vh;height:100dvh}
.pos-left{display:flex;flex-direction:column;min-width:0;border-right:1px solid var(--line);background:var(--bg)}
.pos-top{display:flex;gap:8px;align-items:center;padding:8px 10px;background:#fff;border-bottom:1px solid var(--line)}
.pos-top .search{flex:1;position:relative}
.pos-top .search input{padding-left:36px;min-height:44px;font-size:16px}
.pos-top .search .ic{position:absolute;left:10px;top:12px;color:var(--muted)}
.cats{display:flex;gap:6px;overflow-x:auto;padding:8px 10px;background:#fff;border-bottom:1px solid var(--line);scrollbar-width:thin}
.cats button{flex:none;padding:6px 12px;border-radius:99px;border:1px solid var(--line);background:#fff;font:inherit;font-size:13px;cursor:pointer;white-space:nowrap}
.cats button.on{background:var(--brand);border-color:var(--brand);color:#fff}
.pgrid{flex:1;overflow:auto;padding:10px;display:grid;grid-template-columns:repeat(auto-fill,minmax(138px,1fr));gap:8px;align-content:start}
.ptile{background:#fff;border:1px solid var(--line);border-radius:10px;padding:9px 10px;cursor:pointer;display:flex;flex-direction:column;gap:3px;text-align:left;font:inherit;color:inherit;min-height:84px;position:relative}
.ptile:hover{border-color:var(--brand)}.ptile:active{transform:scale(.98)}
.ptile .n{font-weight:600;font-size:13.5px;line-height:1.25;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ptile .p{font-weight:700;color:var(--brand-d)}
.ptile .s{font-size:11.5px;color:var(--muted)}
.ptile.low .s{color:var(--bad);font-weight:600}
.ptile.out{opacity:.55}
.pos-right{display:flex;flex-direction:column;background:#fff;min-height:0}
.cart-h{display:flex;gap:6px;align-items:center;padding:8px 10px;border-bottom:1px solid var(--line)}
.cart-h .sel{flex:1;min-width:0}
.cart{flex:1;overflow:auto;padding:4px 0}
.ci{display:grid;grid-template-columns:1fr auto;gap:2px 8px;padding:8px 12px;border-bottom:1px solid #f1f5f9}
.ci .nm{font-weight:600;font-size:14px;line-height:1.25}
.ci .lt{font-weight:700;text-align:right;font-variant-numeric:tabular-nums}
.ci .ctl{display:flex;align-items:center;gap:6px;grid-column:1/-1;margin-top:3px}
.ci .ctl button{width:34px;height:34px;border-radius:8px;border:1px solid var(--line);background:#fff;font-size:18px;cursor:pointer;display:grid;place-items:center;padding:0}
.ci .ctl input{width:74px;min-height:34px;padding:4px 6px;text-align:center}
.ci .ctl .pr{width:84px}
.ci .ctl .rm{margin-left:auto;color:var(--bad)}
.cart-empty{padding:40px 16px;text-align:center;color:var(--muted)}
.pay{border-top:2px solid var(--line);padding:10px 12px;background:#f8fafc}
.pay .r{display:flex;justify-content:space-between;align-items:center;padding:2px 0;gap:8px}
.pay .r input{width:110px;min-height:34px;text-align:right;padding:4px 8px}
.pay .tot{font-size:22px;font-weight:800;color:var(--brand-d)}
.pay-btns{display:grid;grid-template-columns:auto 1fr;gap:8px;margin-top:8px}
.mobile-bar{display:none}
@media(max-width:900px){
  .pos{grid-template-columns:1fr;position:relative}
  .pos-right{position:fixed;inset:0;z-index:50;transform:translateY(100%);transition:transform .22s}
  body.cart-open .pos-right{transform:none}
  .mobile-bar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:45;background:var(--brand);color:#fff;padding:10px 14px;align-items:center;justify-content:space-between;font-weight:700;cursor:pointer;padding-bottom:calc(10px + env(safe-area-inset-bottom))}
  .pgrid{padding-bottom:70px;grid-template-columns:repeat(auto-fill,minmax(120px,1fr))}
  .cart-close{display:inline-flex!important}
}
.cart-close{display:none}
.method-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;margin:6px 0}
.method-grid button{padding:8px 4px;border:1px solid var(--line);border-radius:8px;background:#fff;font:inherit;font-size:13px;cursor:pointer}
.method-grid button.on{background:var(--brand);color:#fff;border-color:var(--brand)}
.scanbox{width:100%;max-width:420px;aspect-ratio:4/3;background:#000;border-radius:10px;overflow:hidden;position:relative}
.scanbox video{width:100%;height:100%;object-fit:cover}

/* ================= receipt ================= */
.rc-page{background:#e2e8f0;min-height:100vh;padding:12px}
.rc-bar{max-width:420px;margin:0 auto 10px;display:flex;gap:8px}
.rc{background:#fff;margin:0 auto;padding:10px 8px;font:13px/1.35 "Courier New",ui-monospace,monospace,"Noto Sans Bengali";color:#000}
.rc.w58{width:58mm}.rc.w80{width:80mm}.rc.a4{width:190mm;font-size:14px;padding:14mm}
.rc h1{font-size:16px;text-align:center;margin:0}.rc .c{text-align:center}.rc .sm{font-size:11.5px}
.rc hr{border:0;border-top:1px dashed #000;margin:6px 0}
.rc table{width:100%;border-collapse:collapse}.rc td,.rc th{padding:1px 0;vertical-align:top}
.rc td.n,.rc th.n{text-align:right}
.rc .tr{display:flex;justify-content:space-between}.rc .tr.b{font-weight:700;font-size:15px}
@media print{
  body{background:#fff}.rc-page{background:#fff;padding:0}.rc-bar,.no-print{display:none!important}
  .rc{margin:0;box-shadow:none}
}

/* print for reports */
@media print{
  .sidebar,.topbar,.filters,.actions,.pager,.scrim{display:none!important}
  .main{margin:0}.content{padding:0}.card{box-shadow:none;border:0}
}

/* ================= label sheet ================= */
.labels{display:flex;flex-wrap:wrap;gap:6px}
.blabel{border:1px dashed #94a3b8;padding:5px;width:50mm;text-align:center;font-size:11px;background:#fff;page-break-inside:avoid}
.blabel svg{width:100%;height:34px}
.blabel .nm{font-weight:600;line-height:1.1;max-height:2.2em;overflow:hidden}
.blabel .pr{font-weight:800;font-size:13px}