@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@300;400;500;600;700&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root {
  --primary: #0a7c59;
  --primary-dark: #065c43;
  --primary-light: #e8f5f1;
  --accent: #00c98d;
  --accent2: #ff6b35;
  --danger: #e53e3e;
  --warning: #f6ad55;
  --info: #3182ce;
  --success: #38a169;
  --sidebar-w: 240px;
  --header-h: 58px;
  --bg: #f0f4f3;
  --surface: #ffffff;
  --border: #dce8e4;
  --text: #1a2e28;
  --text-muted: #5a7870;
  --shadow: 0 2px 12px rgba(0,0,0,0.08);
  --radius: 10px;
  --font: 'IBM Plex Sans', sans-serif;
  --mono: 'IBM Plex Mono', monospace;
  --transition: 0.18s ease;
}

* { margin:0; padding:0; box-sizing:border-box; }
html { font-size:14px; }
body { font-family:var(--font); background:var(--bg); color:var(--text); min-height:100vh; overflow-x:hidden; }

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width:6px; height:6px; }
::-webkit-scrollbar-track { background:#f1f1f1; }
::-webkit-scrollbar-thumb { background:#b0c9c3; border-radius:3px; }

/* ===== SIDEBAR ===== */
.sidebar {
  position:fixed; left:0; top:0; bottom:0; width:var(--sidebar-w);
  background:linear-gradient(180deg,#0a7c59 0%,#065c43 100%);
  display:flex; flex-direction:column; z-index:100;
  transition:width var(--transition);
  box-shadow:4px 0 20px rgba(0,0,0,0.15);
}
.sidebar.collapsed { width:60px; }
.sidebar-logo {
  height:var(--header-h); display:flex; align-items:center; gap:10px;
  padding:0 16px; border-bottom:1px solid rgba(255,255,255,0.1); flex-shrink:0;
}
.sidebar-logo .logo-icon {
  width:34px; height:34px; background:rgba(255,255,255,0.2);
  border-radius:8px; display:flex; align-items:center; justify-content:center;
  font-size:20px; flex-shrink:0;
}
.sidebar-logo .logo-text { color:#fff; font-size:15px; font-weight:700; white-space:nowrap; overflow:hidden; }
.sidebar-logo .logo-sub { color:rgba(255,255,255,0.6); font-size:10px; white-space:nowrap; }
.sidebar.collapsed .logo-text, .sidebar.collapsed .logo-sub { display:none; }

.sidebar-nav { flex:1; overflow-y:auto; padding:8px 0; }
.nav-section { padding:8px 12px 4px; font-size:10px; color:rgba(255,255,255,0.4); text-transform:uppercase; letter-spacing:1px; white-space:nowrap; overflow:hidden; }
.sidebar.collapsed .nav-section { opacity:0; }
.nav-item {
  display:flex; align-items:center; gap:12px; padding:10px 16px;
  color:rgba(255,255,255,0.75); cursor:pointer; border-radius:0;
  transition:all var(--transition); position:relative; white-space:nowrap;
  text-decoration:none; font-size:13.5px;
}
.nav-item:hover { background:rgba(255,255,255,0.1); color:#fff; }
.nav-item.active { background:rgba(255,255,255,0.2); color:#fff; }
.nav-item.active::before { content:''; position:absolute; left:0; top:0; bottom:0; width:3px; background:var(--accent); border-radius:0 3px 3px 0; }
.nav-item .nav-icon { font-size:17px; flex-shrink:0; width:22px; text-align:center; }
.nav-item .nav-label { flex:1; }
.nav-item .nav-badge { background:var(--accent2); color:#fff; font-size:10px; padding:1px 6px; border-radius:10px; font-weight:600; }
.nav-item .nav-shortcut { font-size:10px; color:rgba(255,255,255,0.4); font-family:var(--mono); }
.sidebar.collapsed .nav-label, .sidebar.collapsed .nav-badge, .sidebar.collapsed .nav-shortcut { display:none; }

.sidebar-footer { padding:12px; border-top:1px solid rgba(255,255,255,0.1); }
.sidebar-footer .user-info { display:flex; align-items:center; gap:10px; padding:8px; border-radius:8px; cursor:pointer; }
.sidebar-footer .user-info:hover { background:rgba(255,255,255,0.1); }
.user-avatar { width:32px; height:32px; border-radius:50%; background:rgba(255,255,255,0.25); display:flex; align-items:center; justify-content:center; font-size:14px; flex-shrink:0; }
.user-name { color:#fff; font-size:13px; font-weight:500; white-space:nowrap; }
.user-role { color:rgba(255,255,255,0.5); font-size:11px; }
.sidebar.collapsed .user-name, .sidebar.collapsed .user-role { display:none; }

/* ===== HEADER ===== */
.header {
  position:fixed; left:var(--sidebar-w); right:0; top:0; height:var(--header-h);
  background:var(--surface); border-bottom:1px solid var(--border);
  display:flex; align-items:center; padding:0 20px; gap:16px;
  z-index:99; transition:left var(--transition); box-shadow:0 1px 4px rgba(0,0,0,0.05);
}
.sidebar.collapsed ~ .header { left:60px; }
.header-toggle { width:34px; height:34px; border:none; background:transparent; cursor:pointer; border-radius:6px; font-size:18px; display:flex; align-items:center; justify-content:center; color:var(--text-muted); }
.header-toggle:hover { background:var(--bg); }
.header-title { font-size:16px; font-weight:600; flex:1; }
.header-search {
  display:flex; align-items:center; gap:8px; background:var(--bg); border:1px solid var(--border);
  border-radius:8px; padding:0 12px; width:260px; transition:all var(--transition);
}
.header-search:focus-within { border-color:var(--primary); background:#fff; width:320px; }
.header-search input { border:none; background:transparent; outline:none; padding:7px 0; font-size:13px; width:100%; font-family:var(--font); }
.header-search .search-icon { color:var(--text-muted); font-size:15px; }
.header-search .search-key { font-size:10px; color:var(--text-muted); background:#fff; border:1px solid var(--border); padding:1px 5px; border-radius:4px; font-family:var(--mono); white-space:nowrap; }
.header-actions { display:flex; align-items:center; gap:8px; }
.btn-icon { width:36px; height:36px; border:none; background:transparent; cursor:pointer; border-radius:8px; font-size:17px; display:flex; align-items:center; justify-content:center; color:var(--text-muted); position:relative; }
.btn-icon:hover { background:var(--bg); }
.notif-dot { position:absolute; top:6px; right:6px; width:7px; height:7px; background:var(--accent2); border-radius:50%; border:2px solid #fff; }
.header-time { font-family:var(--mono); font-size:13px; color:var(--text-muted); padding:0 8px; border-left:1px solid var(--border); }

/* ===== MAIN CONTENT ===== */
.main-content {
  margin-left:var(--sidebar-w); margin-top:var(--header-h);
  padding:20px; min-height:calc(100vh - var(--header-h));
  transition:margin-left var(--transition);
}
.sidebar.collapsed ~ .header ~ .main-content { margin-left:60px; }

/* ===== CARDS & COMMON ===== */
.card { background:var(--surface); border-radius:var(--radius); border:1px solid var(--border); box-shadow:var(--shadow); } .card > .table-wrap { overflow-x:auto; border-radius:var(--radius); } .card > .card-header + .table-wrap { border-radius:0 0 var(--radius) var(--radius); }
.card-header { padding:14px 18px; border-bottom:1px solid var(--border); display:flex; align-items:center; gap:10px; }
.card-title { font-size:14px; font-weight:600; flex:1; }
.card-body { padding:18px; }

/* ===== STATS GRID ===== */
.stats-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(200px,1fr)); gap:14px; margin-bottom:20px; }
.stat-card {
  background:var(--surface); border-radius:var(--radius); padding:16px 18px;
  border:1px solid var(--border); display:flex; align-items:center; gap:14px;
  cursor:pointer; transition:all var(--transition); position:relative; overflow:hidden;
}
.stat-card:hover { transform:translateY(-2px); box-shadow:0 4px 20px rgba(0,0,0,0.1); border-color:var(--primary); }
.stat-card::before { content:''; position:absolute; top:0; left:0; right:0; height:3px; }
.stat-card.green::before { background:var(--success); }
.stat-card.blue::before { background:var(--info); }
.stat-card.orange::before { background:var(--warning); }
.stat-card.red::before { background:var(--danger); }
.stat-icon { width:44px; height:44px; border-radius:10px; display:flex; align-items:center; justify-content:center; font-size:22px; flex-shrink:0; }
.stat-icon.green { background:#e8f5e9; }
.stat-icon.blue { background:#e3f2fd; }
.stat-icon.orange { background:#fff3e0; }
.stat-icon.red { background:#ffebee; }
.stat-info { flex:1; min-width:0; }
.stat-label { font-size:12px; color:var(--text-muted); margin-bottom:3px; }
.stat-value { font-size:22px; font-weight:700; line-height:1.1; }
.stat-change { font-size:11px; margin-top:2px; }
.stat-change.up { color:var(--success); }
.stat-change.down { color:var(--danger); }

/* ===== TABLES ===== */
.table-wrap { overflow-x:auto; }
table { width:100%; border-collapse:collapse; font-size:13px; }
thead th { background:var(--bg); padding:10px 14px; text-align:left; font-weight:600; font-size:12px; color:var(--text-muted); text-transform:uppercase; letter-spacing:0.5px; border-bottom:1px solid var(--border); white-space:nowrap; }
tbody tr { border-bottom:1px solid #f0f0f0; transition:background var(--transition); }
tbody tr:hover { background:#f8fffe; }
tbody td { padding:10px 14px; vertical-align:middle; }
tbody tr:last-child { border-bottom:none; }

/* ===== BUTTONS ===== */
.btn { display:inline-flex; align-items:center; gap:6px; padding:8px 16px; border-radius:7px; font-size:13px; font-weight:500; cursor:pointer; border:none; transition:all var(--transition); font-family:var(--font); text-decoration:none; white-space:nowrap; }
.btn:active { transform:scale(0.97); }
.btn-primary { background:var(--primary); color:#fff; }
.btn-primary:hover { background:var(--primary-dark); }
.btn-success { background:var(--success); color:#fff; }
.btn-success:hover { background:#2f855a; }
.btn-danger { background:var(--danger); color:#fff; }
.btn-danger:hover { background:#c53030; }
.btn-warning { background:var(--warning); color:#fff; }
.btn-warning:hover { background:#e67e22; }
.btn-info { background:var(--info); color:#fff; }
.btn-info:hover { background:#2b6cb0; }
.btn-outline { background:transparent; border:1px solid var(--border); color:var(--text); }
.btn-outline:hover { background:var(--bg); border-color:var(--primary); color:var(--primary); }
.btn-sm { padding:5px 12px; font-size:12px; }
.btn-lg { padding:11px 24px; font-size:15px; }
.btn-icon-only { padding:8px; border-radius:7px; }

/* ===== FORMS ===== */
.form-group { margin-bottom:14px; }
.form-label { display:block; font-size:12px; font-weight:600; color:var(--text-muted); margin-bottom:5px; text-transform:uppercase; letter-spacing:0.3px; }
.form-control {
  width:100%; padding:8px 12px; border:1px solid var(--border);
  border-radius:7px; font-size:13.5px; font-family:var(--font);
  background:#fff; color:var(--text); outline:none;
  transition:border-color var(--transition), box-shadow var(--transition);
}
.form-control:focus { border-color:var(--primary); box-shadow:0 0 0 3px rgba(10,124,89,0.1); }
.form-control::placeholder { color:#b0c4be; }
select.form-control { cursor:pointer; }
.input-group { display:flex; gap:0; }
.input-group .form-control { flex:1; border-radius:7px 0 0 7px; }
.input-group .btn { border-radius:0 7px 7px 0; }

/* ===== BADGES ===== */
.badge { display:inline-flex; align-items:center; gap:4px; padding:3px 8px; border-radius:20px; font-size:11px; font-weight:600; white-space:nowrap; }
.badge-success { background:#e8f5e9; color:#2f855a; }
.badge-danger { background:#ffebee; color:#c53030; }
.badge-warning { background:#fff3e0; color:#d97706; }
.badge-info { background:#e3f2fd; color:#1d6fa4; }
.badge-secondary { background:#f0f4f3; color:var(--text-muted); }
.badge-primary { background:var(--primary-light); color:var(--primary); }

/* ===== MODALS ===== */
.modal-overlay {
  position:fixed; inset:0; background:rgba(0,0,0,0.5); z-index:999;
  display:flex; align-items:center; justify-content:center; padding:20px;
  opacity:0; pointer-events:none; transition:opacity 0.2s;
  cursor:default;
}
.modal-overlay.show { opacity:1; pointer-events:all; }
.modal-overlay .modal { cursor:default; }
.modal {
  background:#fff; border-radius:12px; box-shadow:0 20px 60px rgba(0,0,0,0.2);
  width:100%; max-height:90vh; overflow-y:auto;
  transform:translateY(20px); transition:transform 0.2s;
}
.modal-overlay.show .modal { transform:translateY(0); }
.modal-sm { max-width:420px; }
.modal-md { max-width:600px; }
.modal-lg { max-width:820px; }
.modal-xl { max-width:1050px; }
.modal-header { padding:16px 20px; border-bottom:1px solid var(--border); display:flex; align-items:center; gap:10px; }
.modal-title { font-size:15px; font-weight:700; flex:1; }
.modal-close { width:30px; height:30px; border:none; background:transparent; cursor:pointer; font-size:20px; color:var(--text-muted); border-radius:5px; display:flex; align-items:center; justify-content:center; }
.modal-close:hover { background:var(--bg); color:var(--danger); }
.modal-body { padding:20px; }
.modal-footer { padding:14px 20px; border-top:1px solid var(--border); display:flex; justify-content:flex-end; gap:8px; }

/* ===== PAGES ===== */
.page { display:none; }
.page.active { display:block; }

/* ===== GRID ===== */
.grid-2 { display:grid; grid-template-columns:1fr 1fr; gap:14px; }
.grid-3 { display:grid; grid-template-columns:1fr 1fr 1fr; gap:14px; }
.flex { display:flex; }
.flex-1 { flex:1; }
.items-center { align-items:center; }
.gap-8 { gap:8px; }
.gap-10 { gap:10px; }
.gap-14 { gap:14px; }
.mb-14 { margin-bottom:14px; }
.mb-20 { margin-bottom:20px; }
.mt-10 { margin-top:10px; }
.text-right { text-align:right; }
.text-center { text-align:center; }
.text-muted { color:var(--text-muted); font-size:12px; }

/* ===== POS / BILLING ===== */
.pos-layout { display:grid; grid-template-columns:1fr 380px; gap:16px; height:calc(100vh - var(--header-h) - 40px); }
.pos-products { display:flex; flex-direction:column; gap:12px; overflow:hidden; }
.pos-cart { display:flex; flex-direction:column; gap:0; background:var(--surface); border-radius:var(--radius); border:1px solid var(--border); overflow:hidden; }
.pos-search { display:flex; gap:10px; }
.product-grid { flex:1; overflow-y:auto; display:grid; grid-template-columns:repeat(auto-fill,minmax(150px,1fr)); gap:10px; padding:4px 2px; }
.product-tile {
  background:var(--surface); border:1.5px solid var(--border); border-radius:var(--radius);
  padding:12px; cursor:pointer; transition:all var(--transition); text-align:center;
  display:flex; flex-direction:column; gap:4px;
}
.product-tile:hover { border-color:var(--primary); box-shadow:0 2px 12px rgba(10,124,89,0.15); transform:translateY(-1px); }
.product-tile:active { transform:scale(0.97); }
.product-tile .p-name { font-size:12.5px; font-weight:600; line-height:1.3; }
.product-tile .p-generic { font-size:11px; color:var(--text-muted); }
.product-tile .p-price { font-size:15px; font-weight:700; color:var(--primary); }
.product-tile .p-stock { font-size:11px; }
.product-tile.low-stock { border-color:#fbbf24; }
.product-tile.out-stock { opacity:0.5; pointer-events:none; }

.cart-header { padding:14px 16px; background:var(--primary); color:#fff; display:flex; align-items:center; gap:10px; }
.cart-title { font-size:14px; font-weight:600; flex:1; }
.cart-items { flex:1; overflow-y:auto; }
.cart-item { padding:10px 14px; border-bottom:1px solid #f0f0f0; display:flex; align-items:center; gap:10px; }
.cart-item-name { flex:1; min-width:0; }
.cart-item-name .ci-name { font-size:13px; font-weight:500; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.cart-item-name .ci-price { font-size:11px; color:var(--text-muted); }
.qty-control { display:flex; align-items:center; gap:4px; }
.qty-btn { width:24px; height:24px; border:1px solid var(--border); background:transparent; border-radius:5px; cursor:pointer; font-size:15px; display:flex; align-items:center; justify-content:center; font-weight:600; transition:all var(--transition); }
.qty-btn:hover { background:var(--primary); color:#fff; border-color:var(--primary); }
.qty-val { width:30px; text-align:center; font-size:13px; font-weight:600; }
.cart-item-total { font-weight:600; font-size:13px; min-width:60px; text-align:right; }
.cart-remove { width:22px; height:22px; border:none; background:transparent; cursor:pointer; color:#ccc; font-size:16px; border-radius:4px; }
.cart-remove:hover { color:var(--danger); background:#ffebee; }
.cart-empty { padding:40px; text-align:center; color:var(--text-muted); }
.cart-empty .ce-icon { font-size:40px; margin-bottom:8px; opacity:0.5; }

.cart-summary { border-top:2px solid var(--border); padding:14px 16px; }
.summary-row { display:flex; justify-content:space-between; margin-bottom:8px; font-size:13px; }
.summary-row.total { font-weight:700; font-size:16px; border-top:1px dashed var(--border); padding-top:8px; margin-top:4px; }
.cart-actions { padding:12px 14px; background:var(--bg); display:flex; gap:8px; }
.cart-actions .btn { flex:1; justify-content:center; }
.discount-row { display:flex; align-items:center; gap:8px; margin-bottom:8px; }

/* ===== BARCODE ===== */
.barcode-scanner { background:#1a2e28; border-radius:var(--radius); padding:14px; display:flex; align-items:center; gap:10px; }
.barcode-scanner input { flex:1; background:rgba(255,255,255,0.1); border:1px solid rgba(255,255,255,0.2); border-radius:6px; padding:8px 12px; color:#fff; font-family:var(--mono); font-size:14px; outline:none; }
.barcode-scanner input::placeholder { color:rgba(255,255,255,0.4); }
.barcode-scanner input:focus { border-color:var(--accent); }
.barcode-icon { font-size:22px; color:var(--accent); }

/* ===== ALERTS & TOASTS ===== */
.toast-container { position:fixed; top:70px; right:20px; z-index:9999; display:flex; flex-direction:column; gap:8px; }
.toast {
  background:#fff; border-radius:var(--radius); box-shadow:0 4px 20px rgba(0,0,0,0.15);
  padding:12px 16px; min-width:280px; max-width:360px;
  display:flex; align-items:center; gap:12px; border-left:4px solid;
  animation:slideIn 0.3s ease;
}
.toast.success { border-color:var(--success); }
.toast.danger { border-color:var(--danger); }
.toast.warning { border-color:var(--warning); }
.toast.info { border-color:var(--info); }
.toast-icon { font-size:18px; }
.toast-msg { flex:1; font-size:13px; }
.toast-close { background:none; border:none; cursor:pointer; color:#ccc; font-size:18px; }
@keyframes slideIn { from { transform:translateX(100%); opacity:0; } to { transform:translateX(0); opacity:1; } }
@keyframes slideOut { from { transform:translateX(0); opacity:1; } to { transform:translateX(100%); opacity:0; } }
.toast.removing { animation:slideOut 0.3s ease forwards; }

/* ===== SHORTCUT HINT ===== */
.shortcut-overlay {
  position:fixed; inset:0; background:rgba(0,0,0,0.7); z-index:10000;
  display:flex; align-items:center; justify-content:center; padding:20px;
  opacity:0; pointer-events:none; transition:opacity 0.2s;
}
.shortcut-overlay.show { opacity:1; pointer-events:all; }
.shortcut-panel { background:#1a2e28; border-radius:14px; padding:24px; max-width:700px; width:100%; color:#fff; }
.shortcut-panel h3 { font-size:18px; margin-bottom:20px; color:var(--accent); }
.shortcut-grid { display:grid; grid-template-columns:1fr 1fr; gap:8px; }
.shortcut-item { display:flex; justify-content:space-between; align-items:center; padding:8px 12px; background:rgba(255,255,255,0.05); border-radius:7px; }
.shortcut-item .action { font-size:13px; color:rgba(255,255,255,0.8); }
.shortcut-item .keys { display:flex; gap:4px; }
.key { background:rgba(255,255,255,0.15); border:1px solid rgba(255,255,255,0.2); border-radius:5px; padding:3px 8px; font-size:11px; font-family:var(--mono); font-weight:600; }

/* ===== LOADING ===== */
.loading { display:flex; align-items:center; justify-content:center; padding:40px; }
.spinner { width:30px; height:30px; border:3px solid var(--border); border-top-color:var(--primary); border-radius:50%; animation:spin 0.7s linear infinite; }
@keyframes spin { to { transform:rotate(360deg); } }

/* ===== EXPIRY INDICATORS ===== */
.expiry-ok { color:var(--success); }
.expiry-soon { color:var(--warning); }
.expiry-expired { color:var(--danger); }

/* ===== PRINT ===== */
@media print {
  .sidebar,.header,.no-print { display:none !important; }
  .main-content { margin:0 !important; padding:0 !important; }
  .print-area { display:block !important; }
}

/* ===== RESPONSIVE ===== */
@media (max-width:768px) {
  .sidebar { transform:translateX(-100%); }
  .sidebar.mobile-open { transform:translateX(0); }
  .header { left:0 !important; }
  .main-content { margin-left:0 !important; }
  .pos-layout { grid-template-columns:1fr; }
  .stats-grid { grid-template-columns:1fr 1fr; }
  .grid-2,.grid-3 { grid-template-columns:1fr; }
}

/* ===== LOW STOCK ROW ===== */
tr.low-stock-row td { background:#fffbeb; }
tr.expired-row td { background:#fff5f5; }

/* ===== TABS ===== */
.tabs { display:flex; gap:0; border-bottom:2px solid var(--border); margin-bottom:18px; }
.tab-btn { padding:10px 18px; border:none; background:transparent; cursor:pointer; font-size:13.5px; font-family:var(--font); color:var(--text-muted); border-bottom:2px solid transparent; margin-bottom:-2px; transition:all var(--transition); }
.tab-btn:hover { color:var(--primary); }
.tab-btn.active { color:var(--primary); border-bottom-color:var(--primary); font-weight:600; }
.tab-content { display:none; }
.tab-content.active { display:block; }

/* ===== CHART PLACEHOLDER ===== */
.chart-container { position:relative; width:100%; }

/* ===== PRINT RECEIPT ===== */
.receipt { font-family:var(--mono); font-size:12px; max-width:320px; margin:0 auto; padding:20px; }
.receipt-header { text-align:center; margin-bottom:16px; }
.receipt-header h2 { font-size:16px; }
.receipt-divider { border:none; border-top:1px dashed #ccc; margin:10px 0; }
.receipt-row { display:flex; justify-content:space-between; margin-bottom:4px; }
.receipt-total { font-weight:700; font-size:14px; }

/* Extra utility */
.w-full { width:100%; }
.d-flex { display:flex; }
.justify-between { justify-content:space-between; }
.align-center { align-items:center; }
.font-mono { font-family:var(--mono); }
.text-sm { font-size:12px; }
.text-xs { font-size:11px; }
.fw-600 { font-weight:600; }
.fw-700 { font-weight:700; }
.color-primary { color:var(--primary); }
.color-danger { color:var(--danger); }
.color-success { color:var(--success); }
.color-warning { color:var(--warning); }