:root{
  --bg:#0F172A; --panel:#131F38; --panel2:#1A2847; --panel3:#22345A;
  --border:rgba(148,178,214,.16); --border2:rgba(148,178,214,.28);
  --text:#E7ECF7; --dim:#8D9BB5; --faint:#5D6B86;
  --accent:#06B6D4; --accent2:#0891B2; --ok:#22C55E; --ng:#EF4444; --warn:#F59E0B; --info:#60A5FA;
  --font:'Inter','Noto Sans KR',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --mono:'JetBrains Mono',ui-monospace,Consolas,monospace;
  --r:12px; --top:56px; --side:220px; --bottom:62px;
}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);font-size:15px;line-height:1.45;-webkit-text-size-adjust:100%}
[hidden]{display:none !important}
a{color:var(--accent)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3{margin:0;line-height:1.25}
h1{font-size:22px} h2{font-size:18px} h3{font-size:15px}
.dim{color:var(--dim)} .faint{color:var(--faint)} .mono{font-family:var(--mono)}
.ok-t{color:var(--ok)} .ng-t{color:var(--ng)} .warn-t{color:var(--warn)}
.num{text-align:right;font-variant-numeric:tabular-nums;font-family:var(--mono)}

/* thanh tải */
.progress{position:fixed;top:0;left:0;height:3px;width:0;background:var(--accent);z-index:100;transition:width .25s,opacity .3s;opacity:0}
.progress.on{opacity:1;width:70%;transition:width 8s cubic-bezier(.1,.6,.2,1)}
.progress.done{opacity:0;width:100%;transition:width .2s,opacity .4s .2s}

/* nút & ô nhập */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:40px;padding:8px 14px;border-radius:10px;border:1px solid var(--border2);background:var(--panel2);font-weight:600;cursor:pointer;white-space:nowrap;text-decoration:none;color:var(--text)}
.btn:hover{border-color:var(--accent)}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#04202A}
.btn.ok{background:var(--ok);border-color:var(--ok);color:#052E14}
.btn.ng{background:transparent;border-color:var(--ng);color:#FCA5A5}
.btn.ghost{background:transparent}
.btn.sm{min-height:32px;padding:4px 10px;font-size:13px;border-radius:8px}
.btn.lg{min-height:56px;font-size:18px;border-radius:14px}
.btn.block{width:100%}
.icon-btn{background:none;border:0;font-size:22px;padding:6px 10px;cursor:pointer;color:var(--text)}
label.f{display:flex;flex-direction:column;gap:4px;font-size:12px;font-weight:600;color:var(--dim);text-transform:uppercase;letter-spacing:.03em}
input,select,textarea{width:100%;min-height:40px;padding:8px 10px;border-radius:10px;border:1px solid var(--border2);background:#0B1324;outline:none}
input:focus,select:focus,textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(6,182,212,.18)}
input[type=checkbox]{width:18px;min-height:18px;height:18px;accent-color:var(--accent)}
.msg{min-height:20px;margin:8px 0;font-size:14px;color:#FCA5A5}
.msg.ok{color:#86EFAC}

/* ĐĂNG NHẬP */
.auth{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:16px}
.auth-box{width:min(380px,100%);background:var(--panel);border:1px solid var(--border);border-radius:16px;padding:24px;display:flex;flex-direction:column;gap:12px}
.auth-logo{height:28px;width:auto;align-self:flex-start}
.auth-box h1{font-size:24px;font-weight:800;letter-spacing:.01em}
.lang-switch{display:flex;gap:4px;justify-content:center}
.lang-switch button{border:1px solid var(--border2);background:transparent;border-radius:8px;padding:4px 10px;font-weight:700;font-size:12px;cursor:pointer;color:var(--dim)}
.lang-switch button.on{background:var(--accent);border-color:var(--accent);color:#04202A}
.lang-switch.small button{padding:3px 7px}

/* KHUNG ỨNG DỤNG */
.top{position:fixed;inset:0 0 auto 0;height:var(--top);display:flex;align-items:center;gap:10px;padding:0 14px;background:rgba(15,23,42,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--border);z-index:30}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);text-decoration:none;font-weight:800;font-size:16px;letter-spacing:.02em}
.brand .logo{height:24px;width:auto}
.top-right{margin-left:auto;display:flex;align-items:center;gap:10px}
.user-chip{display:flex;align-items:center;gap:8px;border:1px solid var(--border2);background:var(--panel);border-radius:999px;padding:4px 6px 4px 12px;cursor:pointer;font-weight:600;font-size:13px}
.role{font-size:10px;font-weight:800;padding:2px 7px;border-radius:999px;background:rgba(6,182,212,.16);color:var(--accent)}
.side{position:fixed;top:var(--top);left:0;bottom:0;width:var(--side);padding:12px 10px;border-right:1px solid var(--border);background:var(--bg);overflow:auto;z-index:25}
.side a{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;color:var(--dim);text-decoration:none;font-weight:600;margin-bottom:2px}
.side a .ic{width:22px;text-align:center;font-size:17px}
.side a:hover{background:var(--panel);color:var(--text)}
.side a.on{background:var(--panel2);color:var(--text);box-shadow:inset 3px 0 0 var(--accent)}
.side .sep{height:1px;background:var(--border);margin:10px 4px}
.badge-n{margin-left:auto;background:var(--warn);color:#2A1A00;font-size:11px;font-weight:800;border-radius:999px;padding:1px 7px}
.main{padding:calc(var(--top) + 18px) 22px 40px calc(var(--side) + 22px);max-width:1500px}
.scrim{display:none}
.bottom{display:none}
.popover{position:fixed;top:calc(var(--top) - 4px);right:12px;background:var(--panel2);border:1px solid var(--border2);border-radius:12px;padding:6px;z-index:60;min-width:180px;box-shadow:0 12px 30px rgba(0,0,0,.4)}
.popover button{display:block;width:100%;text-align:left;background:none;border:0;padding:10px 12px;border-radius:8px;cursor:pointer;font-weight:600}
.popover button:hover{background:var(--panel3)}

/* KHỐI */
.page-head{display:flex;align-items:flex-end;gap:12px;flex-wrap:wrap;margin-bottom:16px}
.page-head h1{font-size:22px;font-weight:800}
.page-head .sub{color:var(--dim);font-size:13px}
.page-head .actions{margin-left:auto;display:flex;gap:8px;flex-wrap:wrap}
.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--r);padding:16px}
.card + .card{margin-top:14px}
.card-h{display:flex;align-items:center;gap:8px;margin-bottom:12px}
.card-h h2{font-size:14px;font-weight:800;text-transform:uppercase;letter-spacing:.04em;color:var(--dim)}
.card-h .r{margin-left:auto;display:flex;gap:6px;align-items:center}
.grid{display:grid;gap:14px}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
.filters{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;align-items:end;margin-bottom:12px}
.row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.spacer{flex:1}

/* KPI */
.kpi{background:var(--panel);border:1px solid var(--border);border-radius:var(--r);padding:14px 16px;display:flex;flex-direction:column;gap:4px;min-width:0}
.kpi .l{font-size:12px;font-weight:700;color:var(--dim);text-transform:uppercase;letter-spacing:.04em}
.kpi .v{font-size:30px;font-weight:800;font-family:var(--mono);letter-spacing:-.02em;line-height:1.1}
.kpi .v small{font-size:13px;font-weight:600;color:var(--dim);margin-left:4px;font-family:var(--font)}
.kpi .s{font-size:12px;color:var(--faint)}
.kpi.ok .v{color:var(--ok)} .kpi.ng .v{color:var(--ng)} .kpi.ac .v{color:var(--accent)}

/* BẢNG */
.tbl-wrap{overflow:auto;border:1px solid var(--border);border-radius:10px;max-height:70vh}
table{width:100%;border-collapse:collapse;font-size:13.5px}
th,td{padding:9px 10px;border-bottom:1px solid var(--border);text-align:left;white-space:nowrap}
th{position:sticky;top:0;background:#16233F;font-size:11.5px;font-weight:800;color:var(--dim);text-transform:uppercase;letter-spacing:.04em;z-index:1}
tbody tr:hover{background:rgba(148,178,214,.05)}
td.wrap{white-space:normal;min-width:160px}
.empty{padding:28px;text-align:center;color:var(--dim)}
.loading{padding:28px;text-align:center;color:var(--dim)}
.loading::before{content:'';display:inline-block;width:14px;height:14px;margin-right:8px;vertical-align:-2px;border:2px solid var(--border2);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.tag{display:inline-block;font-size:11px;font-weight:800;padding:2px 8px;border-radius:999px;background:var(--panel3);color:var(--dim);letter-spacing:.02em}
.tag.ok{background:rgba(34,197,94,.15);color:#86EFAC}
.tag.ng{background:rgba(239,68,68,.15);color:#FCA5A5}
.tag.warn{background:rgba(245,158,11,.16);color:#FCD34D}
.tag.ac{background:rgba(6,182,212,.16);color:#67E8F9}
.lot-link{font-family:var(--mono);font-weight:700;color:var(--text);text-decoration:none;border-bottom:1px dashed var(--faint)}
.lot-link:hover{color:var(--accent);border-color:var(--accent)}

/* MA TRẬN WIP */
.matrix td.cell{text-align:right;font-family:var(--mono);font-weight:700}
.matrix td.z{color:var(--faint);font-weight:400}
.matrix td.na{background:repeating-linear-gradient(135deg,transparent 0 5px,rgba(148,178,214,.05) 5px 10px)}
.matrix td.l1{background:rgba(6,182,212,.12)} .matrix td.l2{background:rgba(6,182,212,.26)} .matrix td.l3{background:rgba(245,158,11,.28);color:#FDE68A}
.matrix td.cell small{display:block;font-size:10.5px;font-weight:500;color:var(--dim)}
.matrix th:first-child,.matrix td:first-child{position:sticky;left:0;background:#16233F;z-index:2}

/* BIỂU ĐỒ CỘT */
.bars{display:flex;align-items:flex-end;gap:10px;height:180px;padding-top:10px}
.bar{flex:1;display:flex;flex-direction:column;align-items:center;gap:6px;min-width:0;height:100%;justify-content:flex-end}
.bar .col{width:100%;max-width:46px;border-radius:6px 6px 2px 2px;background:var(--accent);min-height:2px;position:relative}
.bar .col.ngc{background:var(--ng);max-width:12px}
.bar .pair{display:flex;align-items:flex-end;gap:3px;height:140px;width:100%;justify-content:center}
.bar .v{font-size:11px;font-family:var(--mono);color:var(--text)}
.bar .d{font-size:11px;color:var(--dim)}
.legend{display:flex;gap:14px;font-size:12px;color:var(--dim)}
.legend i{display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:5px;vertical-align:-1px}

/* QUÉT */
.scan-wrap{max-width:760px}
.scan-input{display:flex;gap:8px}
.scan-input input{font-size:18px;min-height:52px;font-family:var(--mono)}
.scan-input .btn{min-height:52px}
.camera{position:relative;margin-top:12px;border-radius:14px;overflow:hidden;background:#000;aspect-ratio:4/3;max-height:60vh}
.camera video{width:100%;height:100%;object-fit:cover}
.camera .frame{position:absolute;inset:18%;border:3px solid rgba(6,182,212,.9);border-radius:14px;box-shadow:0 0 0 999px rgba(0,0,0,.35)}
.camera .close{position:absolute;top:8px;right:8px}
.lot-head{display:flex;align-items:flex-start;gap:10px;flex-wrap:wrap}
.lot-no{font-family:var(--mono);font-size:22px;font-weight:800;letter-spacing:-.01em}
.route{display:flex;flex-wrap:wrap;gap:6px;margin:12px 0}
.step{display:flex;flex-direction:column;align-items:center;min-width:64px;padding:6px 8px;border-radius:10px;border:1px solid var(--border);background:#0E182E;font-size:11px;font-weight:700;color:var(--faint);text-align:center}
.step b{font-family:var(--mono);font-size:13px;color:var(--text)}
.step.has{border-color:var(--accent);color:var(--text);background:rgba(6,182,212,.12)}
.step.sel{background:var(--accent);color:#04202A}
.step.sel b{color:#04202A}
.step.done{color:var(--dim)}
.buckets{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:8px;margin:10px 0 14px}
.bucket{border:2px solid var(--border2);border-radius:12px;padding:10px 12px;background:#0E182E;cursor:pointer;text-align:left}
.bucket .p{font-weight:800}
.bucket .q{font-family:var(--mono);font-size:20px;font-weight:800}
.bucket .n{font-size:12px;color:var(--dim)}
.bucket.on{border-color:var(--accent);background:rgba(6,182,212,.12)}
.qty-row{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px}
.stepper{display:flex;align-items:stretch;border:1px solid var(--border2);border-radius:12px;overflow:hidden;background:#0B1324}
.stepper button{width:48px;border:0;background:var(--panel2);font-size:22px;font-weight:700;cursor:pointer}
.stepper input{border:0;border-radius:0;text-align:center;font-family:var(--mono);font-size:22px;font-weight:800;min-height:52px;background:transparent;box-shadow:none !important}
.ok-box{display:flex;flex-direction:column;justify-content:center;align-items:center;border-radius:12px;background:rgba(34,197,94,.1);border:1px solid rgba(34,197,94,.35);min-height:52px}
.ok-box b{font-family:var(--mono);font-size:24px;color:var(--ok)}
.chips{display:flex;flex-wrap:wrap;gap:6px;margin-top:6px}
.chip{border:1px solid var(--border2);background:transparent;border-radius:999px;padding:5px 11px;font-size:13px;cursor:pointer;color:var(--dim)}
.chip.on{border-color:var(--ng);color:#FCA5A5;background:rgba(239,68,68,.1)}
.result{border-radius:12px;padding:14px;margin-bottom:12px;border:1px solid rgba(34,197,94,.4);background:rgba(34,197,94,.08)}
.timeline{list-style:none;margin:0;padding:0}
.timeline li{display:grid;grid-template-columns:110px 1fr auto;gap:10px;padding:8px 0;border-bottom:1px solid var(--border);font-size:13px}
.timeline li:last-child{border-bottom:0}

/* MODAL & TOAST */
.modal{position:fixed;inset:0;background:rgba(2,6,16,.6);display:flex;align-items:center;justify-content:center;z-index:80;padding:16px}
.modal-box{width:min(480px,100%);max-height:90vh;overflow:auto;background:var(--panel);border:1px solid var(--border2);border-radius:16px;padding:20px;display:flex;flex-direction:column;gap:12px}
.modal-box .row.end{justify-content:flex-end}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%) translateY(20px);background:var(--panel3);border:1px solid var(--border2);padding:12px 18px;border-radius:12px;font-weight:600;opacity:0;pointer-events:none;transition:.25s;z-index:90;max-width:calc(100% - 32px)}
.toast.show{opacity:1;transform:translateX(-50%)}
.toast.ok{border-color:var(--ok)} .toast.err{border-color:var(--ng)}

/* ADMIN */
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--border);margin-bottom:14px;overflow:auto}
.tabs button{background:none;border:0;padding:10px 14px;font-weight:700;color:var(--dim);cursor:pointer;border-bottom:2px solid transparent;white-space:nowrap}
.tabs button.on{color:var(--text);border-color:var(--accent)}
.route-edit{display:flex;flex-direction:column;gap:6px}
.route-edit .it{display:flex;gap:6px;align-items:center}
.route-edit .it span{width:26px;text-align:right;color:var(--dim);font-family:var(--mono)}

/* IN TEM: chỉ hiện khi in */
.print-sheet{display:none}
@media print{
  @page{size:A4;margin:8mm}
  body{background:#fff;color:#000}
  body > *:not(.print-sheet){display:none !important}
  .print-sheet{display:block}
  .pg{display:grid;grid-template-columns:1fr 1fr;grid-auto-rows:136mm;gap:4mm;page-break-after:always;break-after:page}
  .pg:last-child{page-break-after:auto;break-after:auto}
  .lbl{border:1.2px solid #000;border-radius:3mm;padding:7mm 6mm;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;font-family:Arial,sans-serif;color:#000}
  .lbl .t{font-size:13pt;font-weight:800;letter-spacing:.06em}
  .lbl .qr{width:58mm;height:58mm;margin:5mm 0}
  .lbl .qr svg{width:100%;height:100%}
  .lbl .ln{font-size:17pt;font-weight:800;font-family:'Courier New',monospace}
  .lbl .m{font-size:11pt;margin-top:3mm;line-height:1.5}
}

/* ĐIỆN THOẠI / MÁY TÍNH BẢNG */
@media (max-width:900px){
  :root{--top:52px}
  .only-mobile{display:initial}
  .brand span{display:none}
  .side{transform:translateX(-100%);transition:transform .2s;width:260px;z-index:50;top:0;padding-top:16px}
  .side.open{transform:none}
  .scrim.open{display:block;position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:45}
  .main{padding:calc(var(--top) + 14px) 16px calc(var(--bottom) + 24px)}
  .bottom{display:flex;position:fixed;left:0;right:0;bottom:0;height:calc(var(--bottom) + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:rgba(15,23,42,.96);border-top:1px solid var(--border);z-index:30}
  .bottom a{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;color:var(--dim);text-decoration:none;font-size:11px;font-weight:700}
  .bottom a .ic{font-size:20px}
  .bottom a.on{color:var(--accent)}
  .g4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .g3,.g2{grid-template-columns:1fr}
  .kpi .v{font-size:24px}
  .qty-row{grid-template-columns:1fr 1fr}
  .qty-row .ok-box{grid-column:1 / -1}
  .timeline li{grid-template-columns:1fr auto}
  .timeline li .tm{grid-column:1 / -1;color:var(--dim)}
  .tbl-wrap{max-height:none}
  .page-head .actions{margin-left:0;width:100%}
  .toast{bottom:calc(var(--bottom) + 16px + env(safe-area-inset-bottom))}
  .user-chip{padding:4px}
  .user-chip #userName{display:none}
  .top-right{gap:6px}
  .scan-input .cam-t{display:none}
  .scan-input .btn{padding:8px 12px}
  .bottom a .lb{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%;padding:0 2px}
}
@media (min-width:901px){ .only-mobile{display:none !important} }