/* NPB POS — Design System (Beef Burgundy) */
:root{
  --primary:#8B1E2D;--primary-dark:#5E1420;--primary-soft:#F6E7E9;--accent:#C89B3C;--accent-soft:#FBF3E1;
  --surface:#FFFFFF;--bg:#F7F5F2;--ink:#1C1917;--muted:#6B6560;--line:#E7E2DC;
  --success:#15803D;--success-soft:#DCFCE7;--danger:#B91C1C;--danger-soft:#FEE2E2;--warn:#B45309;--warn-soft:#FEF3C7;--info:#0E7490;--info-soft:#E0F2FE;
  --radius:12px;--shadow:0 1px 2px rgba(0,0,0,.05),0 4px 16px rgba(28,25,23,.06);
  --font:"Segoe UI",Sarabun,Tahoma,system-ui,-apple-system,"Noto Sans Thai",sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);font-size:15px;line-height:1.45;color:var(--ink);background:var(--bg)}
a{color:var(--primary)}
h1,h2,h3{margin:0 0 .5em;line-height:1.25}
h1{font-size:22px}h2{font-size:18px}h3{font-size:16px}
small,.muted{color:var(--muted)}
code{background:#eee;padding:1px 5px;border-radius:4px;font-size:.9em}
input,select,textarea,button{font:inherit}
input[type=text],input[type=password],input[type=number],input[type=date],input[type=email],input[type=search],select,textarea{
  width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:#fff;min-height:44px}
input:focus,select:focus,textarea:focus{outline:2px solid var(--primary);outline-offset:1px;border-color:var(--primary)}
label{display:block;margin-bottom:12px;font-weight:600;font-size:14px}
label input,label select,label textarea{margin-top:5px;font-weight:400}
label.chk{display:flex;gap:8px;align-items:center;font-weight:400}label.chk input{width:auto;min-height:auto;margin:0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:10px 18px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--ink);font-weight:600;cursor:pointer;text-decoration:none;transition:.12s;user-select:none;-webkit-tap-highlight-color:transparent}
.btn:hover{background:#faf8f6}.btn:active{transform:scale(.98)}
.btn.primary{background:var(--primary);border-color:var(--primary);color:#fff}.btn.primary:hover{background:var(--primary-dark)}
.btn.success{background:var(--success);border-color:var(--success);color:#fff}
.btn.danger{background:var(--danger);border-color:var(--danger);color:#fff}
.btn.ghost{background:transparent}.btn.sm{min-height:36px;padding:6px 12px;font-size:14px}.btn.lg{min-height:64px;font-size:19px}
.btn.block{width:100%}.btn[disabled]{opacity:.5;cursor:not-allowed}
.alert{padding:12px 14px;border-radius:10px;margin-bottom:14px;border:1px solid}
.alert.ok{background:var(--success-soft);border-color:#86efac;color:#14532d}
.alert.err{background:var(--danger-soft);border-color:#fca5a5;color:#7f1d1d}
.alert.warn{background:var(--warn-soft);border-color:#fcd34d;color:#78350f}
.alert.info{background:var(--info-soft);border-color:#7dd3fc;color:#0c4a6e}
.badge{display:inline-block;padding:2px 9px;border-radius:999px;font-size:12px;font-weight:700;line-height:1.6}
.badge.p{background:var(--accent-soft);color:#7a5a12}.badge.ok{background:var(--success-soft);color:#166534}.badge.err{background:var(--danger-soft);color:#991b1b}
.badge.vat{background:var(--info-soft);color:#075985}.badge.ex{background:#eee;color:#444}.badge.warn{background:var(--warn-soft);color:#92400e}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px}
.card+.card{margin-top:16px}
.grid{display:grid;gap:16px}.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){.g3,.g4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.g2,.g3,.g4{grid-template-columns:1fr}}
.stat{padding:16px 18px}.stat .v{font-size:26px;font-weight:800;letter-spacing:-.5px}.stat .l{color:var(--muted);font-size:13px}
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
table.t{width:100%;border-collapse:collapse;font-size:14px}
table.t th,table.t td{padding:9px 10px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;white-space:nowrap}
table.t th{background:#faf8f6;font-weight:700;color:#444;font-size:13px}
table.t td.n,table.t th.n{text-align:right;font-variant-numeric:tabular-nums}
table.t tr:hover td{background:#fcfbfa}
table.t tfoot td{font-weight:700;background:#faf8f6}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.row.between{justify-content:space-between}.right{text-align:right}
.mt{margin-top:16px}.mb{margin-bottom:16px}
/* auth */
.auth-bg{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(160deg,#5E1420,#8B1E2D 55%,#C89B3C);padding:20px}
.auth-card{background:#fff;border-radius:18px;padding:32px;width:100%;max-width:400px;box-shadow:0 20px 60px rgba(0,0,0,.25)}
.brand{display:flex;gap:12px;align-items:center;margin-bottom:22px}
.brand-mark{background:var(--primary);color:#fff;font-weight:900;padding:8px 12px;border-radius:10px;letter-spacing:1px;font-size:18px}
/* admin layout */
.layout{display:flex;min-height:100vh}
.side{width:240px;background:#fff;border-right:1px solid var(--line);padding:16px 12px;position:sticky;top:0;height:100vh;overflow-y:auto;flex-shrink:0}
.side .brand{margin-bottom:14px}
.side a.nav{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:9px;color:var(--ink);text-decoration:none;font-weight:500;margin-bottom:2px}
.side a.nav:hover{background:var(--bg)}.side a.nav.active{background:var(--primary-soft);color:var(--primary);font-weight:700}
.side .sec{font-size:11px;text-transform:uppercase;letter-spacing:1px;color:var(--muted);margin:14px 12px 6px}
.main{flex:1;min-width:0;padding:20px 24px}
.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px;gap:10px;flex-wrap:wrap}
.hamb{display:none;background:none;border:1px solid var(--line);border-radius:8px;padding:6px 10px;font-size:20px}
@media(max-width:900px){.side{position:fixed;left:-260px;z-index:50;transition:.2s;box-shadow:0 0 40px rgba(0,0,0,.2)}.side.open{left:0}.hamb{display:block}.main{padding:14px}}
.overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.35);z-index:40}.overlay.show{display:block}
/* modal */
.modal-bg{position:fixed;inset:0;background:rgba(28,25,23,.55);display:none;align-items:center;justify-content:center;z-index:100;padding:14px}
.modal-bg.show{display:flex}
.modal{background:#fff;border-radius:16px;width:100%;max-width:520px;max-height:95vh;overflow:auto;padding:20px;box-shadow:0 30px 80px rgba(0,0,0,.35)}
.modal h3{display:flex;justify-content:space-between;align-items:center}
.pinpad{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:12px 0}
.pinpad button{min-height:56px;font-size:22px;border-radius:12px;border:1px solid var(--line);background:#fff;font-weight:700}
.pinpad button:active{background:var(--primary-soft)}
.pindots{display:flex;gap:10px;justify-content:center;margin:8px 0 4px;min-height:20px}
.pindots i{width:14px;height:14px;border-radius:50%;border:2px solid var(--primary);display:block}.pindots i.on{background:var(--primary)}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:#1C1917;color:#fff;padding:12px 18px;border-radius:12px;z-index:200;display:none;max-width:90vw;font-weight:600;box-shadow:0 10px 30px rgba(0,0,0,.3)}
.toast.show{display:block}.toast.ok{background:var(--success)}.toast.err{background:var(--danger)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}@media(max-width:600px){.form-row{grid-template-columns:1fr}}
.kv{display:grid;grid-template-columns:auto 1fr;gap:4px 14px;font-size:14px}.kv b{color:var(--muted);font-weight:500}
.print-only{display:none}
@media print{.no-print{display:none!important}.print-only{display:block}body{background:#fff}.main{padding:0}.card{box-shadow:none;border:0}}
table.t td form{display:inline-flex;gap:6px;margin:0;vertical-align:middle}
table.t td.row{display:table-cell}table.t td.row>*{display:inline-flex;margin-right:4px;vertical-align:middle}