:root {
  --bg-app: #0a0e17;
  --bg-panel: #0f1420;
  --bg-card: #141b2b;
  --bg-card-hover: #1a2236;
  --border-subtle: rgba(255,255,255,0.07);
  --border-strong: rgba(255,255,255,0.14);
  --red: #e11d2e;
  --red-dark: #b3141f;
  --red-glow: rgba(225,29,46,0.35);
  --text-primary: #eef1f7;
  --text-secondary: #9aa3b5;
  --text-muted: #667085;
  --green: #22c55e;
  --amber: #f59e0b;
  --blue: #3b82f6;
  --radius: 14px;
  --radius-sm: 8px;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

* { box-sizing: border-box; }

body {
  background: radial-gradient(circle at top left, #131a2a 0%, #0a0e17 55%);
  color: var(--text-primary);
  font-family: var(--font-sans);
  min-height: 100vh;
}

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #2a3345; border-radius: 8px; }
::-webkit-scrollbar-thumb:hover { background: var(--red-dark); }

a { color: var(--red); text-decoration: none; }

/* ---------- App Shell ---------- */
.app-shell { display: flex; min-height: 100vh; }

.sidebar {
  width: 260px;
  flex-shrink: 0;
  background: linear-gradient(180deg, #0d1220 0%, #090c14 100%);
  border-right: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 22px 20px;
  border-bottom: 1px solid var(--border-subtle);
}

.brand-logo {
  width: 42px; height: 42px;
  flex-shrink: 0;
}

.brand-text .brand-title {
  font-weight: 800;
  font-size: 15px;
  letter-spacing: 0.5px;
  line-height: 1.2;
  color: #fff;
}
.brand-text .brand-sub {
  font-size: 10.5px;
  color: var(--text-muted);
  letter-spacing: 0.3px;
}

.nav-scroll { flex: 1; padding: 14px 12px; }

.nav-link-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 13.5px;
  font-weight: 500;
  margin-bottom: 3px;
  transition: all .15s ease;
  border: 1px solid transparent;
}
.nav-link-item i { width: 18px; text-align: center; font-size: 15px; }
.nav-link-item:hover {
  background: var(--bg-card);
  color: #fff;
}
.nav-link-item.active {
  background: linear-gradient(90deg, rgba(225,29,46,0.18), rgba(225,29,46,0.02));
  color: #fff;
  border-color: rgba(225,29,46,0.35);
  box-shadow: inset 3px 0 0 var(--red);
}

.nav-section-label {
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  padding: 14px 14px 6px;
}

.sidebar-footer {
  padding: 16px 20px 20px;
  border-top: 1px solid var(--border-subtle);
  font-size: 11.5px;
  color: var(--text-muted);
  line-height: 1.7;
}
.sidebar-footer strong { color: var(--text-secondary); font-size: 12.5px; }
.sidebar-clock {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px dashed var(--border-subtle);
  color: var(--text-secondary);
  font-variant-numeric: tabular-nums;
}

/* ---------- Main content ---------- */
.main-content { flex: 1; min-width: 0; display: flex; flex-direction: column; }

.topbar {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 26px;
  border-bottom: 1px solid var(--border-subtle);
  background: rgba(10,14,23,0.75);
  backdrop-filter: blur(6px);
  position: sticky;
  top: 0;
  z-index: 20;
}
.topbar h1 { font-size: 18px; font-weight: 700; margin: 0; color: #fff; }
.topbar .subtitle { font-size: 12px; color: var(--text-muted); }

.page-body { padding: 24px 26px 40px; }

/* ---------- Cards ---------- */
.card-dark {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  transition: border-color .15s ease, transform .15s ease;
}
.card-dark.hoverable:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
}

.stat-card {
  background: linear-gradient(155deg, var(--bg-card) 0%, #10131f 100%);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  padding: 18px 20px;
  position: relative;
  overflow: hidden;
}
.stat-card .stat-icon {
  width: 42px; height: 42px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(225,29,46,0.12);
  color: var(--red);
  font-size: 18px;
  margin-bottom: 12px;
}
.stat-card .stat-value { font-size: 24px; font-weight: 800; color: #fff; }
.stat-card .stat-label { font-size: 12px; color: var(--text-muted); margin-top: 2px; }

/* ---------- Buttons ---------- */
.btn-red {
  background: linear-gradient(180deg, #ec2a3c 0%, var(--red) 100%);
  border: 1px solid rgba(255,255,255,0.08);
  color: #fff;
  font-weight: 600;
  border-radius: var(--radius-sm);
  padding: 10px 18px;
  box-shadow: 0 4px 14px var(--red-glow);
  transition: all .15s ease;
}
.btn-red:hover { filter: brightness(1.08); color: #fff; transform: translateY(-1px); }
.btn-red:active { transform: translateY(0); }
.btn-red.btn-lg { padding: 16px 24px; font-size: 16px; border-radius: 12px; }

.btn-outline-red {
  background: transparent;
  border: 1px solid rgba(225,29,46,0.5);
  color: var(--red);
  font-weight: 600;
  border-radius: var(--radius-sm);
  padding: 9px 16px;
}
.btn-outline-red:hover { background: rgba(225,29,46,0.1); color: #fff; }

.btn-dark-outline {
  background: var(--bg-panel);
  border: 1px solid var(--border-strong);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  padding: 9px 16px;
  font-weight: 500;
}
.btn-dark-outline:hover { color: #fff; border-color: #fff; }

/* ---------- Forms ---------- */
.form-control-dark, .form-select-dark, select.form-control-dark {
  background: var(--bg-panel);
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  padding: 9px 14px;
  font-size: 13.5px;
}
.form-control-dark:focus, .form-select-dark:focus {
  background: var(--bg-panel);
  border-color: var(--red);
  box-shadow: 0 0 0 3px rgba(225,29,46,0.15);
  color: #fff;
}
.form-control-dark::placeholder { color: var(--text-muted); }
label.form-label-dark { font-size: 12px; color: var(--text-secondary); margin-bottom: 5px; font-weight: 600; }

/* ---------- Tables ---------- */
.table-dark-custom {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
}
.table-dark-custom thead th {
  background: var(--bg-panel);
  color: var(--text-muted);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  font-weight: 700;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-subtle);
  white-space: nowrap;
}
.table-dark-custom tbody td {
  padding: 13px 16px;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 13.5px;
  color: var(--text-primary);
  vertical-align: middle;
}
.table-dark-custom tbody tr:hover { background: rgba(255,255,255,0.02); }
.table-dark-custom tbody tr:last-child td { border-bottom: none; }

/* Stable column widths (paired with <colgroup>) so columns don't jump
   around in width as different rows of data page in/out. */
.table-fixed-cols { table-layout: fixed; width: 100%; }
.table-fixed-cols td.text-truncate,
.table-fixed-cols th { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ---------- Badges ---------- */
.badge-status {
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.3px;
  display: inline-block;
}
.status-in, .badge-active, .badge-completed, .badge-approved { background: rgba(34,197,94,0.15); color: var(--green); }
.status-low, .badge-pending { background: rgba(245,158,11,0.15); color: var(--amber); }
.status-out, .badge-inactive, .badge-rejected, .badge-voided, .badge-cancelled { background: rgba(225,29,46,0.15); color: #ff5468; }
.badge-info { background: rgba(59,130,246,0.15); color: var(--blue); }

/* ---------- POS ---------- */
.pos-layout { display: flex; gap: 18px; height: calc(100vh - 64px); padding: 18px; }
.pos-catalog { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.pos-cart { width: 400px; flex-shrink: 0; display: flex; flex-direction: column; background: var(--bg-card); border: 1px solid var(--border-subtle); border-radius: var(--radius); overflow: hidden; }

.category-pill {
  padding: 8px 16px;
  border-radius: 20px;
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 12.5px;
  font-weight: 600;
  white-space: nowrap;
  cursor: pointer;
  transition: all .15s;
}
.category-pill:hover { color: #fff; border-color: var(--border-strong); }
.category-pill.active {
  background: var(--red);
  border-color: var(--red);
  color: #fff;
  box-shadow: 0 3px 10px var(--red-glow);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  align-content: start;
  align-items: start;
  gap: 14px;
  overflow-y: auto;
  padding-bottom: 10px;
  flex: 1;
}

.product-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: all .15s ease;
  display: flex;
  flex-direction: column;
}
.product-card:hover { border-color: var(--red); transform: translateY(-3px); box-shadow: 0 8px 20px rgba(0,0,0,0.4); }
.product-card.disabled { opacity: 0.4; cursor: not-allowed; }
.product-card .img-wrap {
  height: 100px;
  background: var(--bg-panel);
  display: flex; align-items: center; justify-content: center;
  font-size: 30px;
  color: var(--text-muted);
  overflow: hidden;
  border-bottom: 1px solid var(--border-subtle);
}
.product-card .p-body { padding: 10px 12px 12px; }
.product-card .p-name { font-size: 12.5px; font-weight: 600; color: #fff; line-height: 1.3; height: 32px; overflow: hidden; }
.product-card .p-sku { font-size: 10px; color: var(--text-muted); margin: 3px 0 6px; }
.product-card .p-price { font-size: 15px; font-weight: 800; color: var(--red); }
.product-card .p-stock { font-size: 10.5px; color: var(--text-muted); }

.cart-header { padding: 16px 18px; border-bottom: 1px solid var(--border-subtle); display: flex; justify-content: space-between; align-items: center; }
.cart-items { flex: 1; overflow-y: auto; padding: 8px 14px; }
.cart-item { display: flex; gap: 10px; padding: 10px 4px; border-bottom: 1px solid var(--border-subtle); align-items: center; }
.cart-item .ci-thumb { width: 42px; height: 42px; border-radius: 8px; background: var(--bg-panel); display:flex; align-items:center; justify-content:center; color: var(--text-muted); flex-shrink:0; }
.cart-item .ci-info { flex: 1; min-width: 0; }
.cart-item .ci-name { font-size: 12.5px; font-weight: 600; color: #fff; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.cart-item .ci-sku { font-size: 10px; color: var(--text-muted); }
.qty-control { display: flex; align-items: center; gap: 6px; }
.qty-btn { width: 22px; height: 22px; border-radius: 6px; background: var(--bg-panel); border: 1px solid var(--border-strong); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 12px; cursor: pointer; }
.qty-btn:hover { background: var(--red); border-color: var(--red); }

.cart-summary { padding: 14px 18px; border-top: 1px solid var(--border-subtle); background: var(--bg-panel); }
.cart-summary .row-line { display: flex; justify-content: space-between; font-size: 13px; color: var(--text-secondary); margin-bottom: 6px; }
.cart-summary .row-total { display: flex; justify-content: space-between; font-size: 20px; font-weight: 800; color: #fff; margin: 10px 0; }
.cart-summary .row-total span:last-child { color: var(--red); }

.empty-state { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 50px 20px; color: var(--text-muted); text-align: center; }
.empty-state i { font-size: 42px; margin-bottom: 12px; opacity: 0.4; }

/* ---------- Dropdowns (status-update menus, etc.) ---------- */
.dropdown-menu.dropdown-menu-dark {
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  box-shadow: 0 10px 30px rgba(0,0,0,0.45);
  z-index: 1060;
  padding: 6px;
}
.dropdown-menu.dropdown-menu-dark .dropdown-item {
  color: var(--text-secondary);
  border-radius: 6px;
  font-size: 13px;
  padding: 8px 12px;
}
.dropdown-menu.dropdown-menu-dark form { margin: 0; }
.dropdown-menu.dropdown-menu-dark .dropdown-item:hover,
.dropdown-menu.dropdown-menu-dark .dropdown-item:focus {
  background: var(--red);
  color: #fff;
}

/* ---------- Modals ---------- */
.modal-content.modal-dark {
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
  border-radius: var(--radius);
}
.modal-dark .modal-header, .modal-dark .modal-footer { border-color: var(--border-subtle); }
.modal-dark .btn-close { filter: invert(1); }

/* ---------- Login ---------- */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: radial-gradient(circle at 30% 20%, #1a2236 0%, #05070c 70%); }
.login-card { width: 380px; background: var(--bg-card); border: 1px solid var(--border-subtle); border-radius: 18px; padding: 36px 32px; box-shadow: 0 20px 60px rgba(0,0,0,0.5); }

/* Toasts */
.toast-dark { background: var(--bg-card); border: 1px solid var(--border-strong); color: #fff; }

/* Receipt print */
@media print {
  .no-print { display: none !important; }
  body { background: #fff !important; color: #000 !important; }
}

.chart-box { background: var(--bg-card); border: 1px solid var(--border-subtle); border-radius: var(--radius); padding: 18px; }

@media (max-width: 992px) {
  .sidebar { position: fixed; left: -260px; z-index: 100; transition: left .2s; }
  .sidebar.open { left: 0; }
  .pos-layout { flex-direction: column; height: auto; }
  .pos-cart { width: 100%; }
}