:root{
  --bg:#F6F8FB;
  --primary:#2F80ED;
  --accent:#2DCCB7;
  --text:#334155;

  --text-2:#475569;
  --text-3:#64748B;
  --line:#DCE6F4;
  --card:#FFFFFF;
  --muted:#EFF4FB;

  --danger:#EF4444;
  --warning:#F59E0B;
  --success:#22C55E;

  --shadow: 0 10px 30px rgba(51,65,85,.08);
  --shadow-sm: 0 6px 18px rgba(51,65,85,.08);
  --radius:16px;
  --radius-sm:12px;
}

*{box-sizing:border-box}
html,body{height:100%}
html{scrollbar-gutter: stable;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Tahoma, Arial, "Noto Sans Arabic", "Noto Naskh Arabic", sans-serif;
  direction:rtl;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}

img, canvas{max-width:100%}

a{color:inherit; text-decoration:none}
button,input,select,textarea{font:inherit; color:inherit}
::placeholder{color:var(--text-3)}
/* avoid pure black on focus outlines */
:focus{outline:2px solid rgba(47,128,237,.35); outline-offset:2px}

.container{max-width:1200px; margin:0 auto; padding:24px}

/* ===== Auth page ===== */
.auth-wrap{
  min-height:100vh;
  display:grid;
  place-items:center;
  padding:28px;
}
.auth-card{
  width:min(980px, 100%);
  display:grid;
  grid-template-columns: 1.15fr .85fr;
  gap:18px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:24px;
  box-shadow:var(--shadow);
  overflow:hidden;
}
.auth-hero{
  padding:30px 34px;
  background:
    radial-gradient(700px 300px at 20% 10%, rgba(45,204,183,.28), transparent 60%),
    radial-gradient(700px 300px at 60% 30%, rgba(47,128,237,.18), transparent 60%),
    linear-gradient(180deg, #FFFFFF, #F7FAFF);
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
}
.logo{
  width:44px;height:44px;border-radius:14px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 0 12px 22px rgba(47,128,237,.18);
  position:relative;
}
.logo:after{
  content:"";
  position:absolute; inset:10px;
  border-radius:10px;
  border:2px solid rgba(255,255,255,.75);
}
.brand h1{
  margin:0;
  font-size:18px;
  letter-spacing:.2px;
}
.brand p{
  margin:4px 0 0;
  color:var(--text-3);
  font-size:13px;
}
.auth-hero h2{
  margin:18px 0 8px;
  font-size:28px;
}
.auth-hero .sub{
  margin:0 0 18px;
  color:var(--text-2);
  line-height:1.7;
}
.feature-list{
  display:grid;
  gap:10px;
  margin-top:14px;
}
.feature{
  display:flex;
  align-items:center;
  gap:10px;
  padding:10px 12px;
  background:rgba(239,244,251,.7);
  border:1px solid rgba(220,230,244,.7);
  border-radius:14px;
}
.pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 10px;
  border-radius:999px;
  background:rgba(47,128,237,.1);
  border:1px solid rgba(47,128,237,.18);
  color:var(--text-2);
  font-size:12px;
}
.pill .dot{
  width:8px;height:8px;border-radius:999px;
  background:var(--accent);
}
.auth-form{
  padding:30px 28px;
  display:flex;
  flex-direction:column;
  justify-content:center;
}
.auth-form h3{margin:0 0 8px; font-size:20px}
.auth-form .hint{margin:0 0 18px; color:var(--text-3); font-size:13px; line-height:1.7}
.form-grid{display:grid; gap:12px}
.field{
  display:grid;
  gap:7px;
}
.label{
  font-size:13px;
  color:var(--text-2);
}
.input, .select{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:14px;
  padding:12px 12px;
  transition:.15s ease;
}
.input:focus, .select:focus{border-color:rgba(47,128,237,.5); box-shadow:0 0 0 4px rgba(47,128,237,.12)}
.row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  flex-wrap:wrap;
}
.checkbox{
  display:flex; align-items:center; gap:10px;
  user-select:none;
  color:var(--text-2);
  font-size:13px;
}
.checkbox input{width:16px;height:16px; accent-color: var(--primary);}
.link{
  color:var(--primary);
  font-weight:600;
}
.link:hover{text-decoration:underline}
.btn{
  border:0;
  border-radius:14px;
  padding:12px 14px;
  cursor:pointer;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  transition:.15s ease;
  user-select:none;
}
.btn:disabled{opacity:.55; cursor:not-allowed}
.btn-primary{
  background:var(--primary);
  color:#fff;
  box-shadow: 0 16px 30px rgba(47,128,237,.18);
}
.btn-primary:hover{transform:translateY(-1px)}
.btn-secondary{
  background:rgba(47,128,237,.08);
  color:var(--text);
  border:1px solid rgba(47,128,237,.18);
}
.btn-secondary:hover{background:rgba(47,128,237,.11)}
.btn-accent{
  background:var(--accent);
  color:#fff;
  box-shadow: 0 16px 30px rgba(45,204,183,.18);
}
.btn-accent:hover{transform:translateY(-1px)}
.btn-ghost{
  background:transparent;
  color:var(--text-2);
  border:1px solid var(--line);
}
.btn-ghost:hover{background:rgba(239,244,251,.7)}
.btn-danger{
  background:rgba(239,68,68,.12);
  border:1px solid rgba(239,68,68,.22);
  color:#B91C1C;
}
.btn-danger:hover{background:rgba(239,68,68,.16)}
.btn-sm{padding:9px 10px; border-radius:12px; font-size:13px}

.help{
  margin-top:14px;
  color:var(--text-3);
  font-size:12px;
  line-height:1.7;
}
.divider{
  margin:16px 0;
  height:1px;
  background:linear-gradient(90deg, transparent, var(--line), transparent);
}

/* ===== App layout ===== */
.layout{
  min-height:100vh;
}
.sidebar{
  position:fixed;
  right:0;
  top:0;
  bottom:0;
  width:270px;
  padding:18px 14px;
  background:var(--card);
  border-left:1px solid var(--line);
  box-shadow: 0 18px 46px rgba(51,65,85,.06);
  display:flex;
  flex-direction:column;
  z-index:20;
}
.sidebar .brand{padding:6px 10px}
.nav{
  margin-top:14px;
  display:grid;
  gap:6px;
}
.nav a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:12px 12px;
  border-radius:14px;
  color:var(--text-2);
  border:1px solid transparent;
}
.nav a:hover{
  background:rgba(239,244,251,.8);
  border-color:rgba(220,230,244,.8);
}
.nav a.active{
  background:rgba(47,128,237,.12);
  border-color:rgba(47,128,237,.22);
  color:var(--text);
}
.nav .left{
  display:flex; align-items:center; gap:10px;
}
.icon{
  width:22px;height:22px;border-radius:8px;
  background:rgba(47,128,237,.12);
  border:1px solid rgba(47,128,237,.16);
  display:grid; place-items:center;
}
.nav a.active .icon{background:rgba(45,204,183,.16); border-color:rgba(45,204,183,.22)}
.small{
  font-size:12px;
  color:var(--text-3);
}
.sidebar-footer{
  margin-top:auto;
  padding:10px;
  border-top:1px dashed rgba(220,230,244,.9);
}
.userbox{
  display:flex; align-items:center; justify-content:space-between; gap:10px;
  padding:10px 10px;
  border-radius:14px;
  background:rgba(239,244,251,.7);
  border:1px solid rgba(220,230,244,.8);
}
.avatar{
  width:38px;height:38px;border-radius:14px;
  background:linear-gradient(135deg, rgba(47,128,237,.25), rgba(45,204,183,.25));
  border:1px solid rgba(220,230,244,.9);
  display:grid; place-items:center;
  font-weight:800;
}
.main{
  margin-right:270px;
  min-height:100vh;
}
.topbar{
  position:sticky;
  top:0;
  z-index:10;
  height:68px;
  background:rgba(246,248,251,.8);
  backdrop-filter: blur(12px);
  border-bottom:1px solid rgba(220,230,244,.8);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:0 18px;
}
.page-title{
  display:flex; align-items:center; gap:10px;
}
.page-title h1{margin:0; font-size:18px}
.page-title .crumb{color:var(--text-3); font-size:12px}
.top-actions{display:flex; align-items:center; gap:10px; flex-wrap:wrap}
.searchbar{
  display:flex; align-items:center; gap:10px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:14px;
  padding:10px 12px;
  min-width: 280px;
}
.searchbar input{
  border:0; outline:0; background:transparent; width:100%;
}
.content{
  padding:20px 18px 26px;
}

/* Cards / KPI */
.grid{
  display:grid;
  gap:14px;
}
.grid.kpis{
  grid-template-columns: repeat(5, minmax(0,1fr));
}
.grid.cols-2{grid-template-columns: repeat(2, minmax(0,1fr));}
.grid.cols-3{grid-template-columns: repeat(3, minmax(0,1fr));}
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
}
.card .card-head{
  padding:14px 14px 0;
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:12px;
}
.card .card-title{
  margin:0;
  font-size:13px;
  color:var(--text-3);
}
.card .card-body{
  padding:14px;
}
.kpi{
  padding:14px;
}
.kpi .value{
  font-size:20px;
  font-weight:800;
  letter-spacing:.2px;
}
.kpi .meta{
  margin-top:6px;
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
  color:var(--text-2);
  font-size:12px;
}
.delta{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 10px;
  border-radius:999px;
  background:rgba(45,204,183,.12);
  border:1px solid rgba(45,204,183,.22);
  color:var(--text-2);
}
.delta.down{
  background:rgba(239,68,68,.08);
  border-color:rgba(239,68,68,.18);
}
.badge{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:6px;
  padding:6px 10px;
  border-radius:999px;
  font-size:12px;
  border:1px solid rgba(220,230,244,.9);
  background:rgba(239,244,251,.75);
  color:var(--text-2);
}
.badge.success{background:rgba(34,197,94,.10); border-color:rgba(34,197,94,.20)}
.badge.warning{background:rgba(245,158,11,.10); border-color:rgba(245,158,11,.20)}
.badge.danger{background:rgba(239,68,68,.10); border-color:rgba(239,68,68,.20)}

/* Table */
.table-wrap{
  overflow:auto;
  border-radius:var(--radius);
  border:1px solid var(--line);
}
table{
  width:100%;
  border-collapse:separate;
  border-spacing:0;
  background:var(--card);
}
thead th{
  position:sticky;
  top:0;
  background:linear-gradient(180deg, #FFFFFF, #F9FBFF);
  color:var(--text-2);
  font-size:12px;
  text-align:right;
  padding:12px 12px;
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
tbody td{
  padding:12px 12px;
  border-bottom:1px solid rgba(220,230,244,.7);
  color:var(--text);
  font-size:13px;
  white-space:nowrap;
}
tbody tr:hover{background:rgba(239,244,251,.6)}
tbody tr:last-child td{border-bottom:0}
.table-actions{display:flex; gap:8px; align-items:center; justify-content:flex-start}
.sortable{
  cursor:pointer;
  user-select:none;
}
.sortable .s{
  color:var(--text-3);
  font-size:11px;
  margin-inline-start:6px;
}
.table-tools{
  display:flex; align-items:center; justify-content:space-between; gap:10px;
  padding:12px 12px;
  flex-wrap:wrap;
}
.filters{
  display:flex; align-items:center; gap:10px; flex-wrap:wrap;
}
.pager{
  display:flex; align-items:center; gap:8px; flex-wrap:wrap;
  color:var(--text-3);
  font-size:12px;
}
.pager .btn{padding:8px 10px;border-radius:12px}

/* Tabs */
.tabs{
  display:flex;
  gap:8px;
  flex-wrap:wrap;
  padding:12px 12px 0;
}
.tab{
  border:1px solid rgba(47,128,237,.18);
  background:rgba(47,128,237,.08);
  color:var(--text);
  padding:8px 12px;
  border-radius:999px;
  cursor:pointer;
  font-size:13px;
}
.tab.active{
  background:rgba(45,204,183,.14);
  border-color:rgba(45,204,183,.22);
}

/* Form helpers */
.grid-2{display:grid; grid-template-columns:1fr 1fr; gap:12px}
.grid-3{display:grid; grid-template-columns:repeat(3, 1fr); gap:12px}
.hr{height:1px; background:linear-gradient(90deg, transparent, var(--line), transparent); margin:12px 0}
.note{color:var(--text-3); font-size:12px; line-height:1.7}

/* Modal */
.modal{
  position:fixed;
  inset:0;
  display:none;
  z-index:50;
}
.modal.is-open{display:block}
.modal .backdrop{
  position:absolute; inset:0;
  background:rgba(51,65,85,.35);
  backdrop-filter: blur(2px);
}
.modal .panel{
  position:relative;
  width:min(720px, calc(100% - 24px));
  margin:12px auto;
  max-height: calc(100vh - 24px);
  max-height: calc(100dvh - 24px);
  display:flex;
  flex-direction:column;
  background:var(--card);
  border-radius:22px;
  border:1px solid rgba(220,230,244,.9);
  box-shadow: 0 30px 80px rgba(51,65,85,.22);
  overflow:hidden;
}
.modal .head{
  padding:16px 16px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  background:linear-gradient(180deg, #FFFFFF, #F7FAFF);
  border-bottom:1px solid rgba(220,230,244,.9);
  position:sticky;
  top:0;
  z-index:2;
}
.modal .head h3{margin:0; font-size:15px}
.modal .body{
  padding:16px;
  overflow:auto;
  -webkit-overflow-scrolling: touch;
}
.modal .foot{
  padding:14px 16px;
  border-top:1px solid rgba(220,230,244,.9);
  display:flex;
  justify-content:flex-start;
  gap:10px;
  flex-wrap:wrap;
  position:sticky;
  bottom:0;
  z-index:2;
  background:var(--card);
}
.close-x{
  border:1px solid var(--line);
  background:transparent;
  border-radius:12px;
  width:38px;height:38px;
  cursor:pointer;
}
.close-x:hover{background:rgba(239,244,251,.8)}

/* Toast */
.toast-host{
  position:fixed;
  left:18px;
  bottom:18px;
  display:grid;
  gap:10px;
  z-index:80;
}
.toast{
  width:min(380px, calc(100vw - 36px));
  background:var(--card);
  border:1px solid rgba(220,230,244,.9);
  box-shadow: 0 18px 55px rgba(51,65,85,.18);
  border-radius:18px;
  padding:12px 12px;
  display:flex;
  gap:10px;
  align-items:flex-start;
  animation: pop .18s ease-out;
}
.toast .ticon{
  width:34px;height:34px;border-radius:14px;
  display:grid; place-items:center;
  background:rgba(47,128,237,.10);
  border:1px solid rgba(47,128,237,.18);
  flex:0 0 auto;
}
.toast.success .ticon{background:rgba(34,197,94,.10); border-color:rgba(34,197,94,.20)}
.toast.error .ticon{background:rgba(239,68,68,.10); border-color:rgba(239,68,68,.20)}
.toast.warning .ticon{background:rgba(245,158,11,.10); border-color:rgba(245,158,11,.20)}
.toast h4{margin:0; font-size:13px}
.toast p{margin:2px 0 0; color:var(--text-2); font-size:12px; line-height:1.6}
@keyframes pop{from{transform:translateY(6px); opacity:0}to{transform:none;opacity:1}}

/* Empty state */
.empty{
  padding:26px 18px;
  display:grid;
  place-items:center;
  text-align:center;
  color:var(--text-3);
}
.empty .art{
  width:70px;height:70px;border-radius:24px;
  background: radial-gradient(40px 40px at 30% 30%, rgba(45,204,183,.28), transparent 60%),
              radial-gradient(40px 40px at 70% 70%, rgba(47,128,237,.22), transparent 60%),
              rgba(239,244,251,.8);
  border:1px solid rgba(220,230,244,.9);
  box-shadow: var(--shadow-sm);
  margin-bottom:10px;
}
.empty h3{margin:0 0 6px; color:var(--text); font-size:15px}
.empty p{margin:0; max-width: 520px}

/* POS */
.pos-grid{
  display:grid;
  grid-template-columns: 1.2fr .8fr;
  gap:14px;
}
.cart-item{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:10px 10px;
  border:1px solid rgba(220,230,244,.9);
  border-radius:16px;
  background:rgba(239,244,251,.55);
}
.cart-item .name{font-weight:700}
.qty{
  display:flex; align-items:center; gap:8px;
}
.qty input{
  width:72px;
  text-align:center;
}

/* Print */
.print-only{display:none;}

@media print{
  body{background:#fff}
  .sidebar,.topbar,.no-print{display:none !important}
  .main{margin-right:0}
  .content{padding:0}
  .card{box-shadow:none}
  .table-wrap{border:1px solid #ddd}

  /* Isolate printing for debt report when requested */
  body[data-print="debt"] *{ visibility:hidden; }
  body[data-print="debt"] #debtPrintArea,
  body[data-print="debt"] #debtPrintArea *{ visibility:visible; }
  body[data-print="debt"] #debtPrintArea{
    position:fixed;
    inset:0;
    padding:0;
    margin:0;
    display:block !important;
  }

  /* Isolate printing for sales invoice when requested */
  body[data-print="invoice"] *{ visibility:hidden; }
  body[data-print="invoice"] #printArea,
  body[data-print="invoice"] #printArea *{ visibility:visible; }
  body[data-print="invoice"] #printArea{
    position:fixed;
    inset:0;
    padding:0;
    margin:0;
    display:block !important;
  }
}

/* Responsive */
@media (max-width: 980px){
  .auth-card{grid-template-columns:1fr}
  .grid.kpis{grid-template-columns: repeat(2, minmax(0,1fr))}
  .grid.cols-2{grid-template-columns:1fr}
  .pos-grid{grid-template-columns:1fr}
  .searchbar{min-width: 220px}
}
@media (max-width: 780px){
  .sidebar{transform:translateX(110%); transition:.18s ease; }
  .sidebar.open{transform:none}
  .main{margin-right:0}
  .topbar{padding:0 12px}
  .grid.kpis{grid-template-columns:1fr 1fr}
  .searchbar{min-width: unset; width: 100%}
}
@media (max-width: 520px){
  .grid.kpis{grid-template-columns:1fr}
  .grid-2,.grid-3{grid-template-columns:1fr}
}