:root{
  --bg:#f8fafc; --surface:#ffffff; --border:#e2e8f0;
  --text:#1e293b; --text-dim:#64748b;
  --accent:#0891b2; --accent-2:#7c3aed;
  --up:#16a34a; --down:#dc2626;
  --sidebar-bg:#0f172a; --sidebar-text:#cbd5e1;
}
:root[data-theme="dark"]{
  --bg:#0f172a; --surface:#182338; --border:#2b3a55;
  --text:#f1f5f9; --text-dim:#94a3b8;
  --accent:#22d3ee; --accent-2:#a78bfa;
  --sidebar-bg:#0a1120; --sidebar-text:#94a3b8;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font-family:'IBM Plex Sans Arabic',Tahoma,sans-serif;transition:background .25s,color .25s}
h1,h3{font-family:'Tajawal',sans-serif}
button{font-family:inherit;cursor:pointer;border:none}
input{font-family:inherit}

.back-pill{position:fixed;inset-block-start:14px;inset-inline-end:14px;z-index:90;
  background:var(--surface);color:var(--accent);border:1px solid var(--border);
  padding:7px 14px;border-radius:999px;font-size:12.5px;font-weight:600}

.app{display:flex;min-height:100vh}

/* ---- Sidebar ---- */
.sidebar{width:240px;flex-shrink:0;background:var(--sidebar-bg);color:var(--sidebar-text);
  display:flex;flex-direction:column;padding:22px 0;transition:transform .3s}
.sidebar__brand{display:flex;align-items:center;gap:10px;padding:0 22px 26px}
.sidebar__mark{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--accent),var(--accent-2));
  display:flex;align-items:center;justify-content:center;font-weight:800;color:#0a1120;font-family:'Tajawal',sans-serif}
.sidebar__name{font-family:'Tajawal',sans-serif;font-weight:700;color:#f1f5f9}
.sidebar__nav{display:flex;flex-direction:column;gap:2px;padding:0 12px}
.nav-item{display:flex;align-items:center;gap:10px;padding:12px 14px;border-radius:10px;
  background:transparent;color:var(--sidebar-text);font-size:14.5px;font-weight:600;text-align:start;width:100%}
.nav-item:hover{background:rgba(255,255,255,.06)}
.nav-item.is-active{background:rgba(34,211,238,.12);color:var(--accent)}
.nav-item__icon{font-size:15px;width:18px;text-align:center}

/* ---- Main ---- */
.main{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{display:flex;align-items:center;justify-content:space-between;padding:18px 28px;
  border-block-end:1px solid var(--border);background:var(--surface)}
.topbar__title{margin:0;font-size:20px}
.sidebar-toggle{display:none;position:relative;z-index:95;background:transparent;color:var(--text);font-size:20px}
.theme-toggle{position:relative;z-index:95;background:var(--bg);border:1px solid var(--border);border-radius:10px;width:38px;height:38px;font-size:16px}
.content{padding:26px 28px;flex:1}

.view{display:none}
.view.is-active{display:block}

/* ---- KPI cards ---- */
.kpi-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:16px;margin-block-end:24px}
.kpi-card{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:18px;
  display:flex;flex-direction:column;gap:6px}
.kpi-card__label{font-size:12.5px;color:var(--text-dim)}
.kpi-card__value{font-size:24px;font-weight:800;font-family:'Tajawal',sans-serif}
.kpi-card__delta{font-size:12px;font-weight:700;width:fit-content;padding:2px 8px;border-radius:999px}
.kpi-card__delta.is-up{color:var(--up);background:rgba(22,163,74,.12)}
.kpi-card__delta.is-down{color:var(--down);background:rgba(220,38,38,.12)}

/* ---- Charts ---- */
.chart-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:16px}
.chart-card{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:20px;height:320px}
.chart-card h3{margin:0 0 14px;font-size:15px;color:var(--text)}
.chart-card canvas{max-height:240px}

/* ---- Tables ---- */
.inventory-banner{position:relative;border-radius:14px;overflow:hidden;height:110px;margin-block-end:16px}
.inventory-banner img{width:100%;height:100%;object-fit:cover;filter:brightness(.55)}
.inventory-banner__text{position:absolute;inset:0;display:flex;align-items:center;padding:0 22px;color:#fff;font-size:14px}
.table-toolbar{margin-block-end:14px}
.table-search{width:100%;max-width:340px;padding:10px 14px;border-radius:10px;border:1px solid var(--border);
  background:var(--surface);color:var(--text);font-size:13.5px}
.table-wrap{background:var(--surface);border:1px solid var(--border);border-radius:14px;overflow:auto}
.data-table{width:100%;border-collapse:collapse;font-size:13.5px}
.data-table th,.data-table td{padding:12px 16px;text-align:start;white-space:nowrap}
.data-table th{color:var(--text-dim);font-weight:700;cursor:pointer;border-block-end:1px solid var(--border);user-select:none}
.data-table th:hover{color:var(--accent)}
.data-table tbody tr{border-block-end:1px solid var(--border)}
.data-table tbody tr:last-child{border:none}
.status-pill{padding:3px 10px;border-radius:999px;font-size:11.5px;font-weight:700}
.status-pill--paid{background:rgba(22,163,74,.12);color:var(--up)}
.status-pill--pending{background:rgba(234,179,8,.15);color:#ca8a04}
.status-pill--overdue{background:rgba(220,38,38,.12);color:var(--down)}
.status-pill--ok{background:rgba(22,163,74,.12);color:var(--up)}
.status-pill--low{background:rgba(220,38,38,.12);color:var(--down)}
.table-avatar{width:30px;height:30px;border-radius:50%;object-fit:cover}

.wa-fab{position:fixed;inset-block-end:20px;inset-inline-end:20px;width:50px;height:50px;border-radius:50%;
  background:#25D366;color:#0a0a0a;display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 18px rgba(0,0,0,.35);z-index:60;transition:transform .18s}
.wa-fab:hover{transform:scale(1.08)}

/* ---- Responsive ---- */
@media (max-width:900px){
  .sidebar{position:fixed;inset-block:0;inset-inline-start:0;z-index:80;transform:translateX(100%);width:240px}
  .sidebar.is-open{transform:none}
  .sidebar-toggle{display:block}
  .sidebar-overlay{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:70;opacity:0;pointer-events:none;transition:opacity .25s}
  .sidebar-overlay.is-open{opacity:1;pointer-events:auto}
}
@media (max-width:480px){
  .content{padding:18px 14px}
  .topbar{padding:14px 16px}
  .kpi-card__value{font-size:20px}
}

/* ==== UPDATE-1 additions below (invoices/inventory/customers/pos/reports) ==== */

/* ---- Page toolbar / buttons ---- */
.page-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-block-end:18px;flex-wrap:wrap}
.page-head h2{margin:0;font-size:19px}
.btn-primary{background:var(--accent);color:#fff;padding:11px 20px;border-radius:10px;font-size:14px;font-weight:700}
.btn-secondary{background:var(--surface);color:var(--text);border:1px solid var(--border);padding:10px 18px;border-radius:10px;font-size:13.5px;font-weight:600}
.btn-ghost{background:transparent;color:var(--accent);padding:8px 12px;font-size:13px;font-weight:700}

/* ---- Status pills (extended vocabulary) ---- */
.status-pill--paid-full{background:rgba(22,163,74,.12);color:var(--up)}
.status-pill--partial{background:rgba(234,179,8,.15);color:#ca8a04}
.status-pill--deferred{background:rgba(249,115,22,.14);color:#ea580c}
.status-pill--cancelled{background:rgba(220,38,38,.12);color:var(--down)}

/* ---- Modal / wizard shell ---- */
.modal-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.55);z-index:190;display:none;align-items:center;justify-content:center;padding:16px}
.modal-backdrop.is-open{display:flex}
.wizard-modal{background:var(--surface);border-radius:16px;max-width:720px;width:100%;max-height:92vh;overflow:auto;padding:0}
.wizard-head{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;border-block-end:1px solid var(--border);position:sticky;inset-block-start:0;background:var(--surface);z-index:2}
.wizard-head h3{margin:0;font-size:17px}
.wizard-close{background:transparent;font-size:20px;color:var(--text-dim);width:32px;height:32px;border-radius:8px}
.wizard-close:hover{background:var(--bg)}
.wizard-steps{display:flex;gap:6px;padding:16px 24px 0}
.wizard-step-dot{flex:1;height:4px;border-radius:99px;background:var(--border)}
.wizard-step-dot.is-done,.wizard-step-dot.is-active{background:var(--accent)}
.wizard-body{padding:20px 24px}
.wizard-footer{display:flex;justify-content:space-between;gap:10px;padding:16px 24px;border-block-start:1px solid var(--border);position:sticky;inset-block-end:0;background:var(--surface)}

/* ---- Wizard step 1: client picker ---- */
.picker-search{width:100%;padding:11px 14px;border-radius:10px;border:1px solid var(--border);background:var(--bg);color:var(--text);font-size:13.5px;margin-block-end:12px}
.picker-list{display:flex;flex-direction:column;gap:6px;max-height:320px;overflow:auto}
.picker-item{display:flex;justify-content:space-between;align-items:center;padding:12px 14px;border:1px solid var(--border);border-radius:10px;text-align:start;background:var(--bg);width:100%}
.picker-item:hover{border-color:var(--accent)}
.picker-item.is-selected{border-color:var(--accent);background:rgba(8,145,178,.08)}
.picker-item__name{font-weight:700;font-size:14px}
.picker-item__meta{font-size:12px;color:var(--text-dim)}

/* ---- Wizard step 2: line items ---- */
.line-item-add{display:grid;grid-template-columns:2fr 90px 100px 90px auto;gap:8px;margin-block-end:14px;align-items:center}
.line-item-add select,.line-item-add input{padding:9px 10px;border-radius:8px;border:1px solid var(--border);background:var(--bg);color:var(--text);font-size:13px;width:100%}
.line-items-table{width:100%;border-collapse:collapse;font-size:13px;margin-block-end:14px}
.line-items-table th,.line-items-table td{padding:8px 10px;text-align:start;border-block-end:1px solid var(--border)}
.line-remove{background:transparent;color:var(--down);font-size:15px}
.totals-box{margin-inline-start:auto;max-width:280px;display:flex;flex-direction:column;gap:6px;background:var(--bg);border-radius:10px;padding:14px 16px;font-size:13.5px}
.totals-box__row{display:flex;justify-content:space-between}
.totals-box__row.is-total{font-weight:800;font-size:16px;color:var(--accent);border-block-start:1px solid var(--border);padding-block-start:8px}

/* ---- Payment widget ---- */
.pay-lines{display:flex;flex-direction:column;gap:10px}
.pay-line{display:flex;flex-wrap:wrap;gap:8px;align-items:center;background:var(--bg);border:1px solid var(--border);border-radius:10px;padding:10px}
.pay-method{padding:9px 10px;border-radius:8px;border:1px solid var(--border);background:var(--surface);color:var(--text);font-size:13px}
.pay-amount{width:110px;padding:9px 10px;border-radius:8px;border:1px solid var(--border);background:var(--surface);color:var(--text);font-size:13px}
.pay-extra{display:flex;gap:6px;flex-wrap:wrap}
.pay-field{padding:9px 10px;border-radius:8px;border:1px solid var(--border);background:var(--surface);color:var(--text);font-size:12.5px;min-width:140px}
.pay-remove{background:transparent;color:var(--down);font-size:15px;margin-inline-start:auto}
.pay-summary{display:flex;justify-content:space-between;margin-block-start:12px;font-size:13.5px}
.pay-remaining--due{color:var(--down);font-weight:700}
.pay-remaining--ok{color:var(--up);font-weight:700}
.btn-add-payment{margin-block-start:10px;background:transparent;color:var(--accent);font-size:13px;font-weight:700;border:1px dashed var(--accent);padding:9px 14px;border-radius:8px;width:100%}

/* ---- A4 invoice / statement preview ---- */
.a4-preview{background:#fff;color:#111;border-radius:10px;padding:34px;font-size:13px;border:1px solid var(--border)}
.a4-preview h2{color:#111}
.a4-preview__head{display:flex;justify-content:space-between;align-items:flex-start;margin-block-end:24px;border-block-end:2px solid #111;padding-block-end:14px}
.a4-preview__brand{font-family:'Tajawal',sans-serif;font-weight:800;font-size:20px}
.a4-preview table{width:100%;border-collapse:collapse;margin-block:16px}
.a4-preview th,.a4-preview td{padding:8px 10px;border:1px solid #ccc;text-align:start;font-size:12.5px}
.a4-preview__totals{margin-inline-start:auto;max-width:260px}

/* ---- Warehouse tabs (inventory) ---- */
.wh-tabs{display:flex;gap:8px;margin-block-end:16px;flex-wrap:wrap}
.wh-tab{padding:10px 18px;border-radius:999px;border:1px solid var(--border);background:var(--surface);color:var(--text-dim);font-size:13.5px;font-weight:600}
.wh-tab.is-active{background:var(--accent);color:#fff;border-color:var(--accent)}
.transfer-form{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:18px;margin-block:18px}
.transfer-form select,.transfer-form input{padding:10px 12px;border-radius:8px;border:1px solid var(--border);background:var(--bg);color:var(--text);font-size:13px}
.transfer-form .btn-primary{grid-column:1/-1;justify-self:start}

/* ---- Client statement ---- */
.statement-modes{display:flex;gap:8px;margin-block:14px}
.statement-mode{padding:9px 16px;border-radius:8px;border:1px solid var(--border);background:var(--surface);color:var(--text-dim);font-size:13px;font-weight:600}
.statement-mode.is-active{background:var(--accent-2);color:#fff;border-color:var(--accent-2)}
.timeline{display:flex;flex-direction:column;gap:12px}
.timeline-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:14px 16px;display:flex;justify-content:space-between;gap:10px}
.aging-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:14px}
.aging-card{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:18px;text-align:center}
.aging-card__value{font-size:22px;font-weight:800;font-family:'Tajawal',sans-serif;color:var(--accent)}

/* ---- POS ---- */
.pos-switcher{display:flex;gap:8px;margin-block-end:18px;flex-wrap:wrap}
.pos-switcher button{padding:10px 18px;border-radius:10px;border:1px solid var(--border);background:var(--surface);color:var(--text-dim);font-weight:700;font-size:13.5px}
.pos-switcher button.is-active{background:var(--accent);color:#fff;border-color:var(--accent)}
.pos-layout{display:none}
.pos-layout.is-active{display:grid}
.pos-retail{grid-template-columns:160px 1fr 300px;gap:16px}
.pos-restaurant-order{grid-column:1/-1;display:grid;grid-template-columns:1fr 300px;gap:16px}
.pos-cat-list{display:flex;flex-direction:column;gap:4px}
.pos-cat-list button{text-align:start;padding:10px 12px;border-radius:8px;background:transparent;color:var(--text-dim);font-size:13px}
.pos-cat-list button.is-active{background:var(--accent);color:#fff}
.pos-product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:10px;align-content:start}
.pos-product-tile{background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:10px;text-align:center;font-size:12.5px}
.pos-product-tile__price{color:var(--accent);font-weight:700;font-size:13px}
.pos-cart{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:14px;display:flex;flex-direction:column;gap:8px;max-height:70vh;overflow:auto}
.pos-cart-line{display:flex;justify-content:space-between;align-items:center;font-size:12.5px;border-block-end:1px solid var(--border);padding-block-end:6px}
.pos-cart-line__qty{display:flex;align-items:center;gap:6px}
.pos-cart-line__qty button{width:22px;height:22px;border-radius:6px;background:var(--bg);border:1px solid var(--border);font-size:12px}

.pos-restaurant-tables{grid-template-columns:repeat(auto-fill,minmax(90px,1fr));gap:10px}
.pos-table-tile{aspect-ratio:1;border-radius:12px;border:1px solid var(--border);background:var(--surface);display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:12px;font-weight:700}
.pos-table-tile.is-occupied{background:rgba(220,38,38,.1);border-color:var(--down);color:var(--down)}
.pos-modifier{display:inline-block;margin:3px 4px 0 0;padding:4px 9px;border-radius:999px;border:1px solid var(--border);font-size:11.5px;background:var(--bg)}
.pos-modifier.is-active{background:var(--accent);color:#fff;border-color:var(--accent)}

.pos-market{grid-template-columns:1fr;gap:12px}
.pos-barcode-input{padding:14px 16px;border-radius:10px;border:2px solid var(--accent);background:var(--surface);color:var(--text);font-size:16px;width:100%}
.pos-market-list{background:var(--surface);border:1px solid var(--border);border-radius:12px;max-height:50vh;overflow:auto}
.pos-market-row{display:flex;justify-content:space-between;align-items:center;padding:9px 14px;border-block-end:1px solid var(--border);font-size:13px}

/* ---- Reports ---- */
.report-section{margin-block-end:32px}
.report-filters{display:flex;gap:10px;margin-block-end:14px;flex-wrap:wrap;align-items:center}
.report-filters input,.report-filters select{padding:9px 12px;border-radius:8px;border:1px solid var(--border);background:var(--surface);color:var(--text);font-size:13px}

/* ---- Print ---- */
@media print{
  .sidebar,.topbar,.back-pill,.wa-fab,.sidebar-overlay,.page-head .btn-secondary,.statement-modes,.pos-switcher,.wizard-footer,.no-print{display:none !important}
  .main{width:100%}
  .content{padding:0}
  body{background:#fff}
  .a4-preview{border:none;padding:0}
}

/* ---- UPDATE-1 responsive overrides (kept last so they win the cascade over the component rules above) ---- */
@media (max-width:900px){
  .pos-retail,.pos-restaurant-order{grid-template-columns:1fr}
  .pos-retail>*,.pos-restaurant-order>*{min-width:0}
  .pos-cat-list{flex-direction:row;flex-wrap:wrap}
  .pos-product-grid{grid-template-columns:repeat(auto-fill,minmax(100px,1fr))}
  .line-item-add{grid-template-columns:1fr 1fr}
}