/* Tijarah POS design system — self-contained, no external deps.
   Palette: indigo (brand) · emerald (money/success) · amber (stock alert) · slate (neutrals) */
:root{
  --brand:#4338CA; --brand-600:#4f46e5; --brand-050:#eef2ff;
  --money:#059669; --money-050:#ecfdf5;
  --warn:#b45309;  --warn-050:#fffbeb;
  --danger:#dc2626;--danger-050:#fef2f2;
  --ink:#0f172a; --muted:#64748b; --faint:#94a3b8;
  --line:#e2e8f0; --bg:#f1f5f9; --surface:#ffffff;
  --radius:12px; --radius-sm:8px;
  --shadow:0 1px 2px rgba(15,23,42,.06),0 8px 24px -12px rgba(15,23,42,.15);
  --sidebar:248px;
  --ui:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:var(--ui);background:var(--bg);color:var(--ink);
  font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}
a{color:var(--brand);text-decoration:none}
.tnum{font-variant-numeric:tabular-nums}

/* Layout */
.shell{display:flex;min-height:100vh}
.sidebar{width:var(--sidebar);background:#111827;color:#cbd5e1;
  position:fixed;top:0;bottom:0;left:0;display:flex;flex-direction:column;z-index:30}
.brand{padding:20px 20px 14px;display:flex;align-items:center;gap:10px;
  color:#fff;font-weight:700;font-size:17px;letter-spacing:-.02em}
.brand .dot{width:26px;height:26px;border-radius:7px;
  background:linear-gradient(135deg,var(--brand-600),#818cf8);
  display:grid;place-items:center;color:#fff;font-size:14px}
.nav{padding:8px;overflow-y:auto;flex:1}
.nav .grp{font-size:11px;text-transform:uppercase;letter-spacing:.08em;
  color:#64748b;padding:14px 12px 6px;font-weight:600}
.nav a{display:flex;align-items:center;gap:11px;padding:9px 12px;border-radius:8px;
  color:#cbd5e1;font-weight:500;margin-bottom:1px}
.nav a:hover{background:#1f2937;color:#fff}
.nav a.active{background:var(--brand);color:#fff}
.nav a .ic{width:18px;text-align:center;opacity:.9}
.sidebar .foot{padding:12px;border-top:1px solid #1f2937}
.sidebar .foot .u{display:flex;align-items:center;gap:10px;font-size:13px;color:#e2e8f0}
.avatar{width:32px;height:32px;border-radius:50%;background:var(--brand);
  display:grid;place-items:center;color:#fff;font-weight:600;font-size:13px}

.main{margin-left:var(--sidebar);flex:1;min-width:0}
.topbar{height:60px;background:var(--surface);border-bottom:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;padding:0 24px;
  position:sticky;top:0;z-index:20}
.topbar h1{font-size:18px;font-weight:650;margin:0;letter-spacing:-.01em}
.content{padding:24px;max-width:1200px}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:7px;border:1px solid transparent;
  background:var(--surface);color:var(--ink);padding:9px 15px;border-radius:var(--radius-sm);
  font-weight:600;font-size:13px;cursor:pointer;font-family:inherit;transition:.12s}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-600)}
.btn-money{background:var(--money);color:#fff}
.btn-ghost{background:var(--surface);border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--faint)}
.btn-danger{background:var(--danger-050);color:var(--danger)}
.btn-sm{padding:6px 11px;font-size:12px}
.btn-lg{padding:13px 20px;font-size:15px}
.btn-block{width:100%;justify-content:center}

/* Cards */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow)}
.card-pad{padding:20px}
.card-head{padding:16px 20px;border-bottom:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between}
.card-head h2{font-size:15px;font-weight:650;margin:0}

/* Stat cards */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:22px}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px 20px;box-shadow:var(--shadow)}
.stat .lbl{font-size:12px;color:var(--muted);font-weight:600;
  text-transform:uppercase;letter-spacing:.04em}
.stat .val{font-size:26px;font-weight:750;margin-top:6px;letter-spacing:-.02em}
.stat.money .val{color:var(--money)}
.stat .ico{float:right;width:38px;height:38px;border-radius:10px;
  display:grid;place-items:center;font-size:18px;background:var(--brand-050);color:var(--brand)}
.stat.money .ico{background:var(--money-050);color:var(--money)}
.stat.warn .ico{background:var(--warn-050);color:var(--warn)}

/* Tables */
.table-wrap{overflow-x:auto}
table.tbl{width:100%;border-collapse:collapse;font-size:13.5px}
table.tbl th{text-align:left;padding:11px 16px;color:var(--muted);font-weight:600;
  font-size:12px;text-transform:uppercase;letter-spacing:.03em;
  border-bottom:1px solid var(--line);white-space:nowrap}
table.tbl td{padding:12px 16px;border-bottom:1px solid var(--line);vertical-align:middle}
table.tbl tr:last-child td{border-bottom:0}
table.tbl tr:hover td{background:#f8fafc}
.txt-right{text-align:right}

/* Badges */
.badge{display:inline-flex;align-items:center;padding:3px 9px;border-radius:999px;
  font-size:11.5px;font-weight:650}
.badge-ok{background:var(--money-050);color:var(--money)}
.badge-low{background:var(--warn-050);color:var(--warn)}
.badge-out{background:var(--danger-050);color:var(--danger)}
.badge-muted{background:#f1f5f9;color:var(--muted)}

/* Forms */
.field{margin-bottom:16px}
.field label{display:block;font-weight:600;font-size:13px;margin-bottom:6px;color:#334155}
.input,select.input,textarea.input{width:100%;padding:10px 12px;border:1px solid var(--line);
  border-radius:var(--radius-sm);font-family:inherit;font-size:14px;background:#fff;color:var(--ink)}
.input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-050)}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.grid-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px}
.hint{font-size:12px;color:var(--faint);margin-top:4px}

/* Flash */
.flash{padding:12px 16px;border-radius:var(--radius-sm);margin-bottom:18px;font-weight:600;font-size:13.5px}
.flash.success{background:var(--money-050);color:var(--money);border:1px solid #a7f3d0}
.flash.error{background:var(--danger-050);color:var(--danger);border:1px solid #fecaca}

.page-actions{display:flex;gap:10px;align-items:center}
.empty{padding:48px 20px;text-align:center;color:var(--muted)}
.empty .big{font-size:40px;margin-bottom:8px}

/* Responsive */
@media(max-width:900px){
  .sidebar{transform:translateX(-100%);transition:.2s}
  .sidebar.open{transform:none}
  .main{margin-left:0}
  .stats{grid-template-columns:repeat(2,1fr)}
  .grid-2,.grid-3{grid-template-columns:1fr}
  .menu-btn{display:inline-flex!important}
}
.menu-btn{display:none}