:root{
  --ink:#10151c; --ink2:#161d27; --panel:#1b232f; --panel2:#212c3a;
  --line:#2c3a4d; --line2:#37485f;
  --txt:#e7edf4; --mut:#90a0b4; --mut2:#6b7d92;
  --amber:#f2b03d; --amber-d:#d8941f; --amber-soft:rgba(242,176,61,.13);
  --pos:#46c98b; --neg:#f0676b; --info:#5aa9e6;
  --rad:13px; --rad-sm:8px;
  --shadow:0 10px 34px rgba(0,0,0,.40);
  --mono:'IBM Plex Mono',ui-monospace,monospace;
  --sans:'Cairo',system-ui,'Segoe UI',sans-serif;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html,body{margin:0;padding:0}
body{font-family:var(--sans);background:var(--ink);color:var(--txt);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
h1,h2,h3{margin:0;font-weight:800;letter-spacing:-.01em}
small{font-weight:600}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums}
.num.pos{color:var(--pos)} .num.neg{color:var(--neg)} .num.zero{color:var(--mut)}
.muted{color:var(--mut)} .muted.small{font-size:12px}
code{font-family:var(--mono);background:rgba(255,255,255,.06);padding:1px 6px;border-radius:5px;color:var(--amber)}

/* ---------- buttons ---------- */
.btn{font-family:var(--sans);font-weight:700;font-size:13px;border:1px solid var(--line2);
  background:var(--panel2);color:var(--txt);border-radius:var(--rad-sm);padding:8px 14px;cursor:pointer;
  transition:.12s;display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.btn:hover{border-color:var(--amber);color:#fff}
.btn-primary{background:var(--amber);border-color:var(--amber);color:#1a1205}
.btn-primary:hover{background:var(--amber-d);border-color:var(--amber-d);color:#1a1205}
.btn-ghost{background:transparent;border-color:transparent;color:var(--mut)}
.btn-ghost:hover{background:var(--panel2);color:#fff;border-color:transparent}
.btn-danger{color:var(--neg);border-color:transparent;background:transparent}
.btn-danger:hover{background:rgba(240,103,107,.12);border-color:transparent;color:var(--neg)}
.btn.lg{padding:12px 22px;font-size:15px;width:100%;justify-content:center}
.btn.sm{padding:5px 10px;font-size:12px}
.btn.xs{padding:3px 8px;font-size:11.5px}

/* ---------- auth / setup ---------- */
.auth-wrap{min-height:100vh;display:grid;place-items:center;padding:24px;
  background:radial-gradient(900px 500px at 70% -10%, #1d2b3d 0%, var(--ink) 60%)}
.auth-card{width:100%;max-width:380px;background:var(--panel);border:1px solid var(--line);
  border-radius:var(--rad);padding:30px;box-shadow:var(--shadow)}
.auth-card.setup{max-width:480px;text-align:center}
.auth-card h1{font-size:22px;margin:18px 0 8px}
.auth-card form{display:flex;flex-direction:column;gap:13px;margin-top:18px}
.auth-card label{display:flex;flex-direction:column;gap:6px;font-size:12.5px;color:var(--mut);font-weight:700}
.auth-card input{font-family:var(--sans)}
.lang-switch{display:inline-block;margin-top:14px;color:var(--amber);font-weight:700;font-size:13px}
.err{color:var(--neg);font-size:12.5px;font-weight:700}
.setup-log{text-align:start;background:var(--ink);border:1px solid var(--line);border-radius:var(--rad-sm);
  padding:12px;margin-top:16px;font-family:var(--mono);font-size:12px;max-height:240px;overflow:auto;white-space:pre-wrap}
.brand{display:flex;align-items:center;gap:9px;font-weight:800;font-size:15px}
.brand .dot{width:11px;height:11px;border-radius:3px;background:var(--amber);box-shadow:0 0 0 4px var(--amber-soft)}

/* ---------- inputs ---------- */
input,select,textarea{font-family:var(--sans);font-size:13.5px;color:var(--txt);background:var(--ink2);
  border:1px solid var(--line2);border-radius:var(--rad-sm);padding:9px 11px;width:100%;transition:.12s}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--amber);box-shadow:0 0 0 3px var(--amber-soft)}
input[type=checkbox]{width:auto;accent-color:var(--amber)}
select{cursor:pointer}
label.field{display:flex;flex-direction:column;gap:5px;font-size:12px;color:var(--mut);font-weight:700}
label.inline{flex-direction:row;align-items:center;gap:8px;color:var(--txt)}

/* ---------- shell ---------- */
.shell{display:flex;min-height:100vh}
.side{width:248px;flex:0 0 248px;background:var(--ink2);border-inline-end:1px solid var(--line);
  display:flex;flex-direction:column;position:sticky;top:0;height:100vh}
.side .brand{padding:18px 18px 12px;border-bottom:1px solid var(--line)}
.side .bt{font-size:13.5px;line-height:1.25}
.side nav{flex:1;overflow:auto;padding:10px 10px}
.side nav a{display:flex;align-items:center;gap:11px;padding:9px 12px;border-radius:var(--rad-sm);
  color:var(--mut);font-weight:700;font-size:13.5px;margin-bottom:2px}
.side nav a:hover{background:var(--panel);color:var(--txt)}
.side nav a.on{background:var(--amber-soft);color:var(--amber)}
.side nav a .ic{width:22px;text-align:center;font-size:15px;opacity:.9}
.side-foot{border-top:1px solid var(--line);padding:12px}
.who{font-weight:700;font-size:13px;display:flex;flex-direction:column}
.who small{color:var(--mut2);font-size:11px;text-transform:uppercase;letter-spacing:.06em}
.side-actions{display:flex;gap:8px;align-items:center;margin-top:10px}
.lang-switch{border:1px solid var(--line2);border-radius:6px;padding:4px 9px;font-size:12px}

.main{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{display:flex;align-items:center;gap:14px;padding:14px 22px;border-bottom:1px solid var(--line);
  background:var(--ink2);position:sticky;top:0;z-index:5}
.page-title{font-size:18px;flex:1}
.rate-chip{font-family:var(--mono);font-size:12px;color:var(--amber);background:var(--amber-soft);
  border:1px solid rgba(242,176,61,.25);padding:5px 11px;border-radius:20px}
.content{padding:22px;max-width:1320px;width:100%}

/* ---------- cards / panels ---------- */
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--rad);overflow:hidden}
.card + .card{margin-top:18px}
.card-head{display:flex;align-items:center;gap:12px;padding:14px 18px;border-bottom:1px solid var(--line)}
.card-head h2{font-size:15px;flex:1}
.card-body{padding:16px 18px}
.card-body.tight{padding:0}

/* KPI grid */
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px}
.kpi{background:var(--panel);border:1px solid var(--line);border-radius:var(--rad);padding:16px 18px;position:relative;overflow:hidden}
.kpi::before{content:"";position:absolute;inset-inline-start:0;top:0;bottom:0;width:4px;background:var(--amber)}
.kpi .k-lbl{color:var(--mut);font-size:12px;font-weight:700}
.kpi .k-val{font-family:var(--mono);font-size:25px;font-weight:600;margin-top:6px}
.kpi.green::before{background:var(--pos)} .kpi.red::before{background:var(--neg)} .kpi.blue::before{background:var(--info)}

/* ---------- tables ---------- */
.tbl-wrap{overflow:auto}
table{width:100%;border-collapse:collapse;font-size:13px}
thead th{background:var(--ink2);color:var(--mut);font-weight:700;font-size:11.5px;text-transform:uppercase;
  letter-spacing:.04em;padding:10px 12px;text-align:start;border-bottom:1px solid var(--line);white-space:nowrap;position:sticky;top:0}
tbody td{padding:9px 12px;border-bottom:1px solid var(--line);vertical-align:middle}
tbody tr:hover{background:var(--panel2)}
tbody tr:last-child td{border-bottom:0}
td.num,th.num{text-align:end;font-family:var(--mono);font-variant-numeric:tabular-nums}
.row-actions{display:flex;gap:4px;justify-content:flex-end}
.tag{display:inline-block;font-size:11px;font-weight:700;padding:2px 8px;border-radius:20px;
  background:var(--panel2);border:1px solid var(--line2);color:var(--mut)}
.tag.cust{color:var(--info);border-color:rgba(90,169,230,.35);background:rgba(90,169,230,.1)}
.tag.sup{color:var(--amber);border-color:rgba(242,176,61,.3);background:var(--amber-soft)}
.tag.off{opacity:.5}
.dual{display:inline-flex;flex-direction:column;line-height:1.2}
.dual b{font-size:12.5px} .dual span{font-size:11px;color:var(--mut)}

/* toolbar */
.toolbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:16px}
.toolbar .grow{flex:1;min-width:160px}
.toolbar input,.toolbar select{max-width:260px}
.empty{padding:40px;text-align:center;color:var(--mut)}

/* ---------- forms grid ---------- */
.fgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:13px}
.fgrid .full{grid-column:1/-1}
.form-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:18px;padding-top:16px;border-top:1px solid var(--line)}
fieldset{border:1px solid var(--line);border-radius:var(--rad-sm);padding:14px;margin:0 0 14px}
legend{padding:0 8px;font-weight:800;font-size:12.5px;color:var(--amber)}

/* dual ledger entry signature: side-by-side cust/sup */
.ledger-sides{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.ledger-side{border:1px solid var(--line);border-radius:var(--rad-sm);padding:12px;background:var(--ink2)}
.ledger-side h4{margin:0 0 10px;font-size:12.5px;display:flex;align-items:center;gap:7px}
.ledger-side.cust h4{color:var(--info)} .ledger-side.sup h4{color:var(--amber)}
.ledger-side h4::before{content:"";width:9px;height:9px;border-radius:50%;background:currentColor}

/* ---------- modal ---------- */
.modal{position:fixed;inset:0;background:rgba(6,9,13,.72);display:grid;place-items:center;padding:20px;z-index:50;backdrop-filter:blur(2px)}
.modal-box{background:var(--panel);border:1px solid var(--line2);border-radius:var(--rad);
  width:100%;max-width:760px;max-height:90vh;overflow:auto;padding:24px;position:relative;box-shadow:var(--shadow)}
.modal-box h3{font-size:17px;margin-bottom:16px}
.modal-x{position:absolute;inset-inline-end:14px;top:14px;background:none;border:none;color:var(--mut);font-size:17px;cursor:pointer}
.modal-x:hover{color:#fff}

/* ---------- toast ---------- */
.toast{position:fixed;inset-block-end:22px;inset-inline-start:50%;transform:translateX(-50%);
  background:var(--panel2);border:1px solid var(--line2);border-radius:10px;padding:11px 18px;
  font-weight:700;font-size:13px;z-index:60;box-shadow:var(--shadow)}
.toast.ok{border-color:var(--pos);color:var(--pos)} .toast.bad{border-color:var(--neg);color:var(--neg)}

/* statement print sheet */
.statement-sheet{background:#fff;color:#10151c;border-radius:var(--rad);padding:0;overflow:hidden}
.statement-sheet .sh-head{padding:18px 22px;background:#10151c;color:#fff;display:flex;justify-content:space-between;align-items:center}
.statement-sheet table{font-size:12.5px}
.statement-sheet thead th{background:#eef2f6;color:#43505f;position:static}
.statement-sheet tbody td{border-color:#e3e9ef}
.statement-sheet tbody tr:hover{background:#f6f9fb}
.statement-sheet .num.pos{color:#138a5a} .statement-sheet .num.neg{color:#cc3a3f}
.sh-foot{padding:14px 22px;display:flex;justify-content:flex-end;gap:30px;border-top:2px solid #10151c;font-weight:800}

.help{font-size:11.5px;color:var(--mut2);margin-top:4px}
.only-mobile{display:none}

@media (max-width:860px){
  .side{position:fixed;z-index:40;transform:translateX(-110%);transition:.2s;box-shadow:var(--shadow)}
  html[dir=rtl] .side{transform:translateX(110%)}
  .side.open{transform:translateX(0)!important}
  .only-mobile{display:inline-flex}
  .ledger-sides{grid-template-columns:1fr}
  .content{padding:14px}
}
@media print{
  .side,.topbar,.form-actions,.row-actions,.toolbar,.btn{display:none!important}
  body{background:#fff} .content{padding:0} .statement-sheet{box-shadow:none}
}