:root{
  --paper: #EDEFEA;
  --paper-raised: #F7F8F4;
  --ink: #202A2E;
  --ink-soft: #58666A;
  --line: #C9CDC1;
  --amber: #D98E2B;
  --amber-deep: #A5641A;
  --green: #4C7A5E;
  --green-bg: #E3ECE4;
  --red: #B94A3C;
  --red-bg: #F5E4E1;
  --blue: #3E6B8A;
  --sale: #6B4FA0;
  --sale-bg: #EDE7F5;
  --shadow: 0 1px 0 rgba(32,42,46,0.06), 0 6px 16px rgba(32,42,46,0.07);
}
*{box-sizing:border-box;}
body{ margin:0; background:var(--paper); color:var(--ink); font-family:'Inter',sans-serif; -webkit-font-smoothing:antialiased; }
h1,h2,h3,.display{ font-family:'Barlow Condensed',sans-serif; text-transform:uppercase; letter-spacing:0.03em; }
.mono{ font-family:'IBM Plex Mono',monospace; }
.hidden{ display:none !important; }

/* ---------------- LOGIN ---------------- */
#loginScreen{
  min-height:100vh; display:flex; align-items:center; justify-content:center;
  background:var(--ink);
  background-image: radial-gradient(rgba(217,142,43,0.08) 1px, transparent 1px);
  background-size: 22px 22px;
}
.login-card{
  background:var(--paper-raised); border:1px solid var(--line); border-radius:3px;
  width:100%; max-width:360px; padding:32px 28px; box-shadow:0 20px 50px rgba(0,0,0,0.35);
}
.login-card .display{ font-size:30px; font-weight:800; margin-bottom:2px; }
.login-card .tagline{ font-size:11px; letter-spacing:0.16em; text-transform:uppercase; color:var(--amber-deep); margin-bottom:22px; }
.login-error{ background:var(--red-bg); color:var(--red); font-size:13px; padding:8px 10px; border-radius:3px; margin-bottom:12px; display:none; }
.login-hint{ margin-top:16px; font-size:11.5px; color:var(--ink-soft); font-family:'IBM Plex Mono',monospace; line-height:1.5; }

/* ---------------- APP SHELL ---------------- */
.app{ display:flex; min-height:100vh; }
.sidebar{ width:220px; flex-shrink:0; background:var(--ink); color:#DCE2DD; padding:22px 0; display:flex; flex-direction:column; gap:2px; }
.brand{ padding:0 20px 18px 20px; margin-bottom:10px; border-bottom:1px dashed rgba(220,226,221,0.25); }
.brand .display{ font-size:26px; font-weight:800; color:#F7F8F4; line-height:1; }
.brand .sub{ font-size:10px; letter-spacing:0.18em; color:var(--amber); text-transform:uppercase; margin-top:4px; }
.whoami{ padding:10px 20px 16px 20px; border-bottom:1px dashed rgba(220,226,221,0.25); margin-bottom:8px; }
.whoami .name{ font-size:14px; color:#F7F8F4; font-weight:600; }
.whoami .role{ display:inline-block; margin-top:5px; font-size:10px; letter-spacing:0.1em; text-transform:uppercase; padding:2px 7px; border-radius:2px; background:rgba(217,142,43,0.18); color:var(--amber); }
.whoami .logout{ margin-top:10px; font-size:11px; color:#B7C0BA; cursor:pointer; text-decoration:underline; }
.navitem{ position:relative; padding:11px 20px 11px 24px; font-family:'Barlow Condensed',sans-serif; font-size:17px; font-weight:600; letter-spacing:0.02em; text-transform:uppercase; cursor:pointer; color:#B7C0BA; border-left:3px solid transparent; transition:all .15s ease; }
.navitem:hover{ color:#F7F8F4; background:rgba(255,255,255,0.03); }
.navitem.active{ color:#F7F8F4; border-left:3px solid var(--amber); background:rgba(217,142,43,0.12); }
.navitem .count{ float:right; font-family:'IBM Plex Mono',monospace; font-size:11px; background:rgba(255,255,255,0.08); padding:1px 6px; border-radius:2px; }

.main{ flex:1; padding:28px 34px 60px 34px; max-width:1180px; }
.topbar{ display:flex; justify-content:space-between; align-items:flex-end; margin-bottom:22px; flex-wrap:wrap; gap:12px; }
.topbar h1{ font-size:32px; margin:0; }
.topbar .stamp{ font-size:11px; color:var(--ink-soft); font-family:'IBM Plex Mono',monospace; margin-top:2px;}

.btn{ font-family:'Barlow Condensed',sans-serif; text-transform:uppercase; letter-spacing:0.03em; font-weight:700; font-size:15px; padding:9px 16px; border-radius:3px; border:1px solid var(--ink); background:var(--ink); color:#F7F8F4; cursor:pointer; transition:transform .1s ease, box-shadow .1s ease; }
.btn:hover{ transform:translateY(-1px); box-shadow:var(--shadow); }
.btn:disabled{ opacity:0.5; cursor:not-allowed; transform:none; }
.btn.secondary{ background:transparent; color:var(--ink); }
.btn.amber{ background:var(--amber); border-color:var(--amber-deep); color:#2A1C05;}
.btn.danger{ background:var(--red); border-color:#8a352a; color:#fff; }
.btn.small{ font-size:12px; padding:5px 10px; }
.btn.block{ width:100%; }

.kpi-row{ display:grid; grid-template-columns:repeat(4,1fr); gap:16px; margin-bottom:26px; }
.bincard{ background:var(--paper-raised); border:1px solid var(--line); border-radius:2px; padding:16px 18px 14px 18px; position:relative; box-shadow:var(--shadow); }
.bincard::before{ content:''; position:absolute; top:10px; right:10px; width:9px; height:9px; border-radius:50%; background:var(--paper); border:1px solid var(--line); }
.bincard .label{ font-size:11px; letter-spacing:0.12em; text-transform:uppercase; color:var(--ink-soft); font-family:'IBM Plex Mono',monospace; }
.bincard .value{ font-family:'Barlow Condensed',sans-serif; font-weight:800; font-size:34px; margin-top:4px; line-height:1; }
.bincard.warn .value{ color:var(--red); }
.bincard.good .value{ color:var(--green); }

.panel{ background:var(--paper-raised); border:1px solid var(--line); border-radius:2px; box-shadow:var(--shadow); margin-bottom:22px; overflow:hidden; }
.panel-head{ display:flex; justify-content:space-between; align-items:center; padding:14px 18px; border-bottom:1px dashed var(--line); }
.panel-head h2{ font-size:20px; margin:0; }
.panel-body{ padding:16px 18px; }

table{ width:100%; border-collapse:collapse; font-size:14px;}
th{ text-align:left; font-family:'IBM Plex Mono',monospace; font-size:11px; text-transform:uppercase; letter-spacing:0.06em; color:var(--ink-soft); padding:8px 10px; border-bottom:1px solid var(--line); }
td{ padding:9px 10px; border-bottom:1px solid #E1E4DB; vertical-align:middle; }
tr:hover td{ background:rgba(217,142,43,0.05); }
.sku{ font-family:'IBM Plex Mono',monospace; font-size:12.5px; color:var(--ink-soft); }

.tag{ display:inline-block; font-family:'IBM Plex Mono',monospace; font-size:11px; padding:2px 7px; border-radius:2px; background:#E4E6DE; color:var(--ink-soft); }
.tag.good{ background:var(--green-bg); color:var(--green); }
.tag.warn{ background:#FBEBD4; color:var(--amber-deep); }
.tag.bad{ background:var(--red-bg); color:var(--red); }
.tag.sale{ background:var(--sale-bg); color:var(--sale); }
.tag.role-admin{ background:#2A1C05; color:var(--amber); }
.tag.role-manager{ background:var(--sale-bg); color:var(--sale); }
.tag.role-staff{ background:#E4E6DE; color:var(--ink-soft); }

input, select, textarea{ font-family:'Inter',sans-serif; font-size:14px; padding:8px 10px; border:1px solid var(--line); border-radius:3px; background:#fff; color:var(--ink); width:100%; }
label{ font-size:11px; text-transform:uppercase; letter-spacing:0.06em; color:var(--ink-soft); font-family:'IBM Plex Mono',monospace; display:block; margin-bottom:4px; }
.field{ margin-bottom:12px; }
.field-row{ display:grid; grid-template-columns:1fr 1fr; gap:12px; }
.searchbar{ display:flex; gap:10px; margin-bottom:14px; flex-wrap:wrap; }
.searchbar input{ flex:1; min-width:180px; }

.overlay{ position:fixed; inset:0; background:rgba(32,42,46,0.45); display:none; align-items:flex-start; justify-content:center; z-index:50; padding:40px 16px; overflow-y:auto; }
.overlay.open{ display:flex; }
.modal{ background:var(--paper-raised); border:1px solid var(--line); border-radius:3px; width:100%; max-width:460px; box-shadow:0 20px 40px rgba(0,0,0,0.25); }
.modal-head{ padding:16px 20px; border-bottom:1px dashed var(--line); display:flex; justify-content:space-between; align-items:center; }
.modal-head h2{ margin:0; font-size:22px; }
.modal-body{ padding:18px 20px; }
.modal-foot{ padding:14px 20px; border-top:1px dashed var(--line); display:flex; justify-content:flex-end; gap:10px; flex-wrap:wrap; }
.closeX{ cursor:pointer; font-size:20px; color:var(--ink-soft); background:none; border:none; }
.modal-error{ background:var(--red-bg); color:var(--red); font-size:13px; padding:8px 10px; border-radius:3px; margin-bottom:12px; }

.empty{ text-align:center; padding:40px 20px; color:var(--ink-soft); }
.empty .display{ font-size:22px; color:var(--ink); }

.movetype-in{ color:var(--green); font-weight:600; }
.movetype-out{ color:var(--red); font-weight:600; }
.movetype-adjust{ color:var(--blue); font-weight:600; }
.movetype-sale{ color:var(--sale); font-weight:600; }

.chart-wrap{ position:relative; height:260px; }
.grid2{ display:grid; grid-template-columns:1.3fr 1fr; gap:18px; }
.toplist{ list-style:none; margin:0; padding:0; }
.toplist li{ display:flex; justify-content:space-between; align-items:center; padding:9px 0; border-bottom:1px dashed var(--line); font-size:14px; }
.toplist li:last-child{ border-bottom:none; }
.toplist .rank{ font-family:'IBM Plex Mono',monospace; font-size:11px; color:var(--ink-soft); width:20px; display:inline-block; }
.toplist .rev{ font-family:'IBM Plex Mono',monospace; color:var(--sale); font-weight:600; }

/* ---------------- BARCODE SCANNER ---------------- */
#scanReader{ width:100%; max-width:420px; margin:0 auto; border-radius:4px; overflow:hidden; border:2px dashed var(--amber); }
.scan-result-card{ max-width:420px; margin:16px auto 0 auto; background:var(--paper-raised); border:1px solid var(--line); border-radius:3px; padding:16px 18px; box-shadow:var(--shadow); }
.scan-idle{ text-align:center; color:var(--ink-soft); padding:30px; }
.barcode-preview{ background:#fff; border:1px solid var(--line); border-radius:3px; padding:10px; text-align:center; margin-top:8px; }

/* ---------------- PRINT LABEL ---------------- */
#printLabelArea{ display:none; }
@media print{
  body *{ visibility:hidden; }
  #printLabelArea, #printLabelArea *{ visibility:visible; }
  #printLabelArea{ display:block; position:absolute; top:0; left:0; padding:20px; }
}

/* ---------------- INVOICE BUILDER & DOCUMENT ---------------- */
.tag.status-paid{ background:var(--green-bg); color:var(--green); }
.tag.status-unpaid{ background:#FBEBD4; color:var(--amber-deep); }
.tag.status-void{ background:var(--red-bg); color:var(--red); }
.tag.status-refunded{ background:var(--sale-bg); color:var(--sale); }
.invoice-line-table input{ padding:6px 8px; font-size:13px; }
.invoice-line-table td{ vertical-align:middle; }
.invoice-totals{ margin-left:auto; max-width:280px; }
.invoice-totals .row{ display:flex; justify-content:space-between; padding:6px 0; font-size:14px; }
.invoice-totals .row.grand{ border-top:1px solid var(--line); margin-top:4px; padding-top:10px; font-weight:700; font-size:18px; font-family:'Barlow Condensed',sans-serif; }
.scan-inline{ display:flex; gap:8px; margin-bottom:16px; }
.scan-inline input{ flex:1; }

#invoiceDoc{ background:#fff; border:1px solid var(--line); border-radius:3px; padding:34px; max-width:720px; margin:0 auto; }
#invoiceDoc .idoc-head{ display:flex; justify-content:space-between; align-items:flex-start; border-bottom:2px solid var(--ink); padding-bottom:16px; margin-bottom:20px; }
#invoiceDoc .idoc-company{ font-family:'Barlow Condensed',sans-serif; font-weight:800; font-size:24px; text-transform:uppercase; }
#invoiceDoc .idoc-company-sub{ font-size:12.5px; color:var(--ink-soft); white-space:pre-line; margin-top:4px; }
#invoiceDoc .idoc-num{ text-align:right; font-family:'IBM Plex Mono',monospace; }
#invoiceDoc .idoc-num .big{ font-size:22px; font-weight:700; }
#invoiceDoc .idoc-parties{ display:flex; justify-content:space-between; margin-bottom:20px; gap:20px; }
#invoiceDoc .idoc-parties .label{ font-size:10.5px; letter-spacing:0.1em; text-transform:uppercase; color:var(--ink-soft); font-family:'IBM Plex Mono',monospace; margin-bottom:4px; }
#invoiceDoc table{ margin-bottom:16px; }
#invoiceDoc th{ background:var(--paper); }

@media print{
  body *{ visibility:hidden; }
  #printLabelArea, #printLabelArea *, #printInvoiceArea, #printInvoiceArea *{ visibility:visible; }
  #printInvoiceArea{ display:block !important; position:absolute; top:0; left:0; width:100%; padding:20px; }
}
#printInvoiceArea{ display:none; }

/* ---------------- POS REGISTER ---------------- */
.pos-grid{ display:grid; grid-template-columns:1.6fr 1fr; gap:18px; align-items:start; }
.pos-cart-table td, .pos-cart-table th{ padding:8px 8px; }
.pos-cart-table input{ padding:5px 7px; font-size:13px; }
.pos-keybtn{ font-family:'Barlow Condensed',sans-serif; font-weight:700; font-size:18px; text-transform:uppercase; padding:16px; border-radius:3px; border:1px solid var(--line); background:#fff; cursor:pointer; text-align:center; }
.pos-keybtn.active{ background:var(--amber); border-color:var(--amber-deep); color:#2A1C05; }
.pos-paygrid{ display:grid; grid-template-columns:1fr 1fr 1fr; gap:8px; margin-bottom:12px; }
.pos-total-display{ text-align:center; padding:18px 0; background:var(--ink); color:#F7F8F4; border-radius:3px; margin-bottom:14px; }
.pos-total-display .amt{ font-family:'Barlow Condensed',sans-serif; font-weight:800; font-size:42px; line-height:1; }
.pos-total-display .cur{ font-size:12px; letter-spacing:0.14em; text-transform:uppercase; color:var(--amber); margin-top:4px; }
.held-chip{ display:inline-flex; align-items:center; gap:6px; background:var(--paper); border:1px solid var(--line); border-radius:14px; padding:5px 10px; font-size:12.5px; margin:0 6px 6px 0; cursor:pointer; }
.held-chip:hover{ background:var(--sale-bg); }

#receiptDoc{ font-family:'IBM Plex Mono',monospace; font-size:12.5px; width:280px; margin:0 auto; }
#receiptDoc .rline{ display:flex; justify-content:space-between; }
#receiptDoc hr{ border:none; border-top:1px dashed #999; margin:8px 0; }
#receiptDoc .rcenter{ text-align:center; }
#printReceiptArea{ display:none; }
@media print{
  #printReceiptArea, #printReceiptArea *{ visibility:visible; }
  #printReceiptArea{ display:block !important; position:absolute; top:0; left:0; width:100%; padding:10px; }
}

@media (max-width:900px){
  .app{ flex-direction:column; }
  .sidebar{ width:100%; flex-direction:row; overflow-x:auto; padding:10px; align-items:center; }
  .brand, .whoami{ display:none; }
  .kpi-row{ grid-template-columns:repeat(2,1fr); }
  .grid2{ grid-template-columns:1fr; }
  .main{ padding:18px; }
}
::selection{ background:var(--amber); color:#2A1C05; }