:root{
  --ink:#1B2430;
  --ink-2:#28323F;
  --ink-3:#334154;
  --paper:#EEF1F4;
  --card:#FFFFFF;
  --accent:#C4622D;
  --accent-dark:#A34F23;
  --accent-2:#3E7C6B;
  --danger:#B3261E;
  --warn:#B4790F;
  --warn-bg:#FCEFD8;
  --text:#1B2430;
  --text-muted:#5B6675;
  --border:#DFE4EA;
  --radius:10px;
  --shadow: 0 1px 2px rgba(27,36,48,.06), 0 4px 14px rgba(27,36,48,.05);
  font-size:15px;
}
*{box-sizing:border-box;}
html,body{height:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"Vazirmatn","IRANSans","Segoe UI",Tahoma,Arial,sans-serif;
  line-height:1.6;
}
::selection{background:var(--accent);color:#fff;}
button{font-family:inherit;}
input,select,button,textarea{font-size:14px;font-family:inherit;}
h1,h2,h3,h4{margin:0 0 4px;font-weight:700;letter-spacing:.2px;}
a{color:inherit;}
.hidden{display:none !important;}
.mono{font-variant-numeric:tabular-nums;}
.muted{color:var(--text-muted);}
.small{font-size:12.5px;}
.badge{
  display:inline-flex;align-items:center;gap:4px;
  padding:2px 10px;border-radius:99px;font-size:12px;font-weight:600;
}
.badge.admin{background:#EADCF3;color:#5A2A82;}
.badge.user{background:#DDEAE6;color:#215446;}
.badge.warn{background:var(--warn-bg);color:var(--warn);}
.badge.ok{background:#DFF1E6;color:#1E6B45;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  padding:9px 16px;border-radius:8px;border:1px solid transparent;
  background:var(--ink-3);color:#fff;cursor:pointer;font-weight:600;font-size:13.5px;
  transition:filter .12s ease, transform .05s ease;
  white-space:nowrap;
}
.btn:hover{filter:brightness(1.08);}
.btn:active{transform:translateY(1px);}
.btn.primary{background:var(--accent);}
.btn.primary:hover{background:var(--accent-dark);}
.btn.ghost{background:transparent;color:var(--text);border-color:var(--border);}
.btn.ghost:hover{background:#fff;}
.btn.danger{background:#fff;color:var(--danger);border-color:#EBC7C4;}
.btn.danger:hover{background:#FBEDEC;}
.btn.sm{padding:5px 10px;font-size:12.5px;border-radius:6px;}
.btn:disabled{opacity:.45;cursor:not-allowed;}
.icon-btn{
  width:30px;height:30px;border-radius:7px;border:1px solid var(--border);
  background:#fff;display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;color:var(--text-muted);
}
.icon-btn:hover{background:var(--paper);color:var(--text);}
.icon-btn.danger:hover{color:var(--danger);border-color:#EBC7C4;background:#FBEDEC;}

/* ---------- Forms ---------- */
label{display:block;font-size:12.5px;font-weight:600;color:var(--text-muted);margin-bottom:5px;}
input[type=text],input[type=password],input[type=number],select,textarea{
  width:100%;padding:9px 11px;border:1px solid var(--border);border-radius:8px;
  background:#fff;color:var(--text);outline:none;
}
input:focus,select:focus,textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(196,98,45,.15);}
.field{margin-bottom:14px;}
.field-row{display:grid;gap:12px;}
.cols-2{grid-template-columns:1fr 1fr;}
.cols-3{grid-template-columns:1fr 1fr 1fr;}
.cols-4{grid-template-columns:1.2fr 1fr 1fr 1fr;}
.help{font-size:11.5px;color:var(--text-muted);margin-top:4px;}
.error-text{color:var(--danger);font-size:12.5px;margin-top:6px;min-height:16px;}

/* ================= AUTH SCREEN ================= */
#authScreen{
  min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:
    radial-gradient(1200px 600px at 15% -10%, rgba(196,98,45,.18), transparent 60%),
    radial-gradient(900px 500px at 110% 10%, rgba(62,124,107,.16), transparent 55%),
    var(--ink);
  padding:24px;
}
.auth-wrap{
  width:100%;max-width:960px;
  background:var(--card);border-radius:16px;overflow:hidden;
  box-shadow:0 20px 60px rgba(0,0,0,.35);
  display:grid;grid-template-columns:1.1fr 1fr;
  min-height:560px;
}
.auth-side{
  background:
    linear-gradient(160deg, var(--ink) 0%, var(--ink-2) 60%, var(--ink-3) 100%);
  color:#fff;padding:44px 38px;display:flex;flex-direction:column;justify-content:space-between;
  position:relative;overflow:hidden;
}
.auth-side::after{
  content:"";position:absolute;inset:auto -60px -80px auto;width:260px;height:260px;
  border-radius:50%;background:radial-gradient(circle at 30% 30%, var(--accent), transparent 70%);
  opacity:.5;filter:blur(6px);
}
.auth-side .brand{position:relative;z-index:1;}
.auth-side .brand .logo{
  width:46px;height:46px;border-radius:12px;
  background:linear-gradient(135deg,var(--accent),#8f4a24);
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:18px;margin-bottom:18px;
  box-shadow:0 6px 18px rgba(196,98,45,.4);
}
.auth-side h1{font-size:23px;}
.auth-side p{color:#C7CEDA;font-size:13.5px;max-width:320px;}
.auth-side .points{list-style:none;padding:0;margin:26px 0 0;display:flex;flex-direction:column;gap:12px;position:relative;z-index:1;}
.auth-side .points li{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:#DCE2EC;}
.auth-side .points li .dot{
  width:7px;height:7px;border-radius:50%;background:var(--accent);margin-top:6px;flex:none;
}
.auth-side .foot{position:relative;z-index:1;color:#8A93A6;font-size:11.5px;}

.auth-main{padding:40px 40px;display:flex;flex-direction:column;}
.tabs{display:flex;gap:4px;background:var(--paper);padding:4px;border-radius:10px;margin-bottom:26px;}
.tab-btn{
  flex:1;padding:9px 12px;border-radius:7px;border:none;background:transparent;
  cursor:pointer;font-weight:700;font-size:13.5px;color:var(--text-muted);
}
.tab-btn.active{background:#fff;color:var(--text);box-shadow:var(--shadow);}
.auth-form{display:none;}
.auth-form.active{display:block;}
.role-choice{display:flex;gap:10px;margin-bottom:14px;}
.role-opt{
  flex:1;border:1.5px solid var(--border);border-radius:9px;padding:10px 12px;cursor:pointer;
  text-align:center;font-size:12.5px;font-weight:700;color:var(--text-muted);
}
.role-opt.selected{border-color:var(--accent);color:var(--accent-dark);background:#FBF1EA;}
#authMsg{min-height:18px;font-size:12.5px;color:var(--danger);margin-top:4px;}
#authOk{min-height:18px;font-size:12.5px;color:var(--accent-2);margin-top:4px;}

/* ================= APP SHELL ================= */
#app{display:none;min-height:100vh;grid-template-columns:236px 1fr;}
#app.shown{display:grid;}
.sidebar{
  background:var(--ink);color:#EDEFF3;padding:20px 14px;display:flex;flex-direction:column;
  position:sticky;top:0;height:100vh;
}
.sidebar .brand{display:flex;align-items:center;gap:10px;padding:6px 8px 22px;}
.sidebar .brand .logo{
  width:36px;height:36px;border-radius:9px;background:linear-gradient(135deg,var(--accent),#8f4a24);
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;flex:none;
}
.sidebar .brand .t{font-size:14px;font-weight:800;line-height:1.25;}
.sidebar .brand .t small{display:block;font-weight:500;color:#98A2B3;font-size:10.5px;}
.nav{display:flex;flex-direction:column;gap:3px;margin-top:6px;}
.nav-item{
  display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:8px;cursor:pointer;
  color:#C7CEDA;font-size:13.5px;font-weight:600;border:1px solid transparent;
}
.nav-item svg{width:17px;height:17px;flex:none;opacity:.85;}
.nav-item:hover{background:rgba(255,255,255,.06);color:#fff;}
.nav-item.active{background:rgba(196,98,45,.18);color:#fff;border-color:rgba(196,98,45,.35);}
.nav-sep{height:1px;background:rgba(255,255,255,.08);margin:12px 4px;}
.sidebar-foot{margin-top:auto;padding-top:14px;}
.user-card{
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);
  border-radius:10px;padding:11px 12px;font-size:12.5px;
}
.user-card .name{font-weight:700;color:#fff;margin-bottom:4px;}
.user-card .btn{width:100%;margin-top:9px;}

.main{padding:26px 30px 60px;max-width:1400px;}
.topline{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;flex-wrap:wrap;gap:10px;}
.topline h2{font-size:20px;}
.topline .sub{color:var(--text-muted);font-size:13px;margin-top:2px;}

.card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);
}
.card + .card{margin-top:18px;}
.card .card-h{padding:16px 18px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;}
.card .card-h h3{font-size:14.5px;}
.card .card-b{padding:18px;}

.toolbar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;padding:16px 18px;border-bottom:1px solid var(--border);}
.toolbar .grow{flex:1;min-width:180px;}
.search-box{position:relative;}
.search-box svg{position:absolute;top:50%;right:11px;transform:translateY(-50%);width:15px;height:15px;color:var(--text-muted);}
.search-box input{padding-right:34px;}

table{width:100%;border-collapse:collapse;font-size:13px;}
thead th{
  text-align:right;padding:10px 12px;background:var(--paper);color:var(--text-muted);
  font-size:11.5px;font-weight:700;border-bottom:1px solid var(--border);white-space:nowrap;cursor:pointer;
  user-select:none;
}
thead th.nosort{cursor:default;}
thead th .arrow{opacity:.35;font-size:10px;margin-inline-start:3px;}
thead th.sorted .arrow{opacity:1;color:var(--accent);}
tbody td{padding:10px 12px;border-bottom:1px solid var(--border);vertical-align:middle;}
tbody tr:hover{background:#FAFBFC;}
tbody tr:last-child td{border-bottom:none;}
.tbl-wrap{overflow:auto;max-height:62vh;}
.row-actions{display:flex;gap:6px;justify-content:flex-end;}
.empty-state{padding:50px 20px;text-align:center;color:var(--text-muted);}
.empty-state .big{font-size:34px;margin-bottom:6px;}
.pill-cat{
  display:inline-block;padding:2px 9px;border-radius:99px;font-size:11px;font-weight:700;
  background:#EDEFF3;color:var(--ink-3);
}
.chip{display:inline-block;background:#F1F3F6;border:1px solid var(--border);border-radius:6px;padding:1px 7px;font-size:11px;margin:1px;color:var(--text-muted);}

.footer-bar{display:flex;justify-content:space-between;align-items:center;padding:12px 18px;border-top:1px solid var(--border);font-size:12px;color:var(--text-muted);}

/* KPI cards */
.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;}
.kpi{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  padding:16px 18px;box-shadow:var(--shadow);
}
.kpi .lbl{font-size:12px;color:var(--text-muted);font-weight:600;}
.kpi .val{font-size:26px;font-weight:800;margin-top:6px;color:var(--ink);}
.kpi .sub{font-size:11.5px;color:var(--accent-2);margin-top:4px;font-weight:600;}

/* Modal */
.modal-overlay{
  position:fixed;inset:0;background:rgba(20,25,32,.55);display:none;
  align-items:flex-start;justify-content:center;padding:40px 16px;z-index:100;overflow:auto;
}
.modal-overlay.shown{display:flex;}
.modal{
  background:#fff;border-radius:14px;max-width:640px;width:100%;box-shadow:0 30px 60px rgba(0,0,0,.3);
  animation:pop .12s ease;
}
@keyframes pop{from{transform:translateY(6px);opacity:0;}to{transform:translateY(0);opacity:1;}}
.modal-h{padding:18px 22px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;}
.modal-h h3{font-size:16px;}
.modal-b{padding:20px 22px;max-height:70vh;overflow:auto;}
.modal-f{padding:16px 22px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:10px;}

.ing-table{width:100%;border-collapse:collapse;margin-top:6px;}
.ing-table th{font-size:11px;color:var(--text-muted);text-align:right;padding:4px 6px;}
.ing-table td{padding:4px 6px;}
.ing-table select{padding:7px 8px;}
.ing-table input{padding:7px 8px;}

.toast-wrap{position:fixed;bottom:20px;left:20px;display:flex;flex-direction:column;gap:8px;z-index:200;}
.toast{
  background:var(--ink);color:#fff;padding:11px 16px;border-radius:9px;font-size:13px;
  box-shadow:0 10px 30px rgba(0,0,0,.25);display:flex;align-items:center;gap:8px;
  animation:slidein .18s ease;
}
.toast.ok{background:#1E6B45;}
.toast.err{background:var(--danger);}
@keyframes slidein{from{transform:translateY(8px);opacity:0;}to{transform:translateY(0);opacity:1;}}

.result-box{
  background:var(--paper);border:1px dashed var(--border);border-radius:10px;padding:14px 16px;margin-top:14px;
}
.result-box .rline{display:flex;justify-content:space-between;padding:5px 0;font-size:13.5px;border-bottom:1px dashed var(--border);}
.result-box .rline:last-child{border-bottom:none;}
.result-box .rline b{font-weight:800;}

/* print search */
.print-find{display:flex;gap:10px;}
.print-find input{max-width:260px;}

/* print sheet */
#printArea{display:none;}
.a5-sheet{
  width:148mm;min-height:210mm;padding:10mm;margin:0 auto;background:#fff;color:#000;
  font-family:"Vazirmatn","Tahoma",sans-serif;
}
.a5-sheet h2{font-size:15px;margin-bottom:2px;}
.a5-sheet .meta{font-size:11px;color:#333;margin-bottom:10px;}
.a5-sheet table{width:100%;border-collapse:collapse;font-size:11px;}
.a5-sheet th,.a5-sheet td{border:1px solid #999;padding:4px 6px;text-align:right;}
.a5-sheet th{background:#eee;}
.a5-sheet .totals{margin-top:10px;font-size:12px;}
.a5-sheet .totals div{display:flex;justify-content:space-between;padding:3px 0;border-bottom:1px dotted #999;}
.a5-sheet .sig{margin-top:26px;display:flex;justify-content:space-between;font-size:11px;}
.a5-sheet .sig div{width:45%;border-top:1px solid #999;padding-top:4px;text-align:center;}

@media print{
  body *{visibility:hidden;}
  #printArea, #printArea *{visibility:visible;}
  #printArea{display:block;position:absolute;top:0;right:0;left:0;}
  @page{size:A5;margin:8mm;}
}

@media (max-width: 880px){
  #app.shown{grid-template-columns:1fr;}
  .sidebar{position:relative;height:auto;}
  .auth-wrap{grid-template-columns:1fr;}
  .auth-side{display:none;}
  .kpi-grid{grid-template-columns:1fr 1fr;}
}

/* ---------- Searchable material combobox ---------- */
.combo{position:relative;}
.combo input.combo-input{
  width:100%;padding:9px 11px;border:1px solid var(--border);border-radius:8px;
  background:#fff;color:var(--text);outline:none;cursor:text;
}
.combo input.combo-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(196,98,45,.15);}
.combo-panel{
  position:absolute;z-index:50;top:calc(100% + 4px);right:0;left:0;
  background:#fff;border:1px solid var(--border);border-radius:9px;
  box-shadow:0 14px 34px rgba(20,25,32,.18);
  max-height:230px;overflow:auto;display:none;
}
.combo-panel.open{display:block;}
.combo-group-label{
  padding:6px 12px 4px;font-size:10.5px;font-weight:800;color:var(--text-muted);
  background:var(--paper);position:sticky;top:0;
}
.combo-opt{padding:8px 12px;font-size:13px;cursor:pointer;}
.combo-opt:hover, .combo-opt.hi{background:#FBF1EA;color:var(--accent-dark);}
.combo-empty{padding:14px 12px;font-size:12.5px;color:var(--text-muted);text-align:center;}

/* ---------- Loading / connection banner ---------- */
#connBanner{
  display:none;position:fixed;top:0;right:0;left:0;z-index:500;
  background:#B3261E;color:#fff;text-align:center;padding:8px;font-size:13px;font-weight:700;
}
#connBanner.shown{display:block;}
.spinner{
  width:16px;height:16px;border-radius:50%;border:2px solid rgba(255,255,255,.4);
  border-top-color:#fff;display:inline-block;animation:spin .7s linear infinite;vertical-align:-3px;margin-left:6px;
}
@keyframes spin{to{transform:rotate(360deg);}}
.btn[disabled] .spinner{display:inline-block;}