:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #eff6ff;
  --success: #16a34a;
  --success-light: #f0fdf4;
  --danger: #dc2626;
  --danger-light: #fef2f2;
  --warning: #d97706;
  --warning-light: #fffbeb;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  --sidebar-w: 240px;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,.12), 0 1px 2px rgba(0,0,0,.08);
  --shadow-md: 0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);
  --shadow-lg: 0 10px 15px rgba(0,0,0,.1), 0 4px 6px rgba(0,0,0,.05);
}

.app-container.sidebar-collapsed {
  --sidebar-w: 68px;
}
.app-container.sidebar-collapsed .menu-text {
  display: none !important;
}
.app-container.sidebar-collapsed .sidebar-nav a {
  justify-content: center;
}
.app-container.sidebar-collapsed .sidebar-dropdown-btn {
  justify-content: center;
}
.app-container.sidebar-collapsed .sidebar-submenu {
  padding-left: 0;
}
.app-container.sidebar-collapsed .sidebar-submenu a {
  justify-content: center;
}
.app-container.sidebar-collapsed .sidebar-logo {
  padding-right: 0 !important;
  justify-content: center !important;
}
.app-container.sidebar-collapsed .sidebar-user {
  text-align: center;
  padding: 14px 4px;
}
.app-container.sidebar-collapsed .sidebar-user form button {
  justify-content: center;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 14px;
  color: var(--gray-800);
  background: var(--gray-50);
  line-height: 1.5;
}

/* ── Layout ─────────────────────────────── */
.app-container { display: flex; min-height: 100vh; }

.sidebar {
  width: var(--sidebar-w);
  background: var(--gray-900);
  color: #fff;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
  overflow-y: auto;
  transition: transform 0.3s ease;
}

.sidebar.open {
  transform: translateX(0) !important;
  box-shadow: var(--shadow-lg);
}

.sidebar-logo {
  padding: 20px 18px;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.sidebar-brand-block {
  display: flex;
  flex-direction: column;
  gap: 2px;
  text-decoration: none;
  color: inherit;
}
.sidebar-brand-mark {
  width: 40px;
  height: 40px;
  object-fit: contain;
  margin-bottom: 4px;
}
.sidebar-logo h1 { font-size: 16px; font-weight: 700; color: #fff; letter-spacing: -.3px; }
.sidebar-logo p  { font-size: 11px; color: var(--gray-400); margin-top: 2px; }

.sidebar-nav { flex: 1; padding: 12px 8px; }
.sidebar-nav a {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px;
  border-radius: 6px;
  color: var(--gray-300);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 2px;
  transition: background .15s, color .15s;
}
.sidebar-nav a:hover   { background: rgba(255,255,255,.08); color: #fff; }
.sidebar-nav a.active  { background: var(--primary); color: #fff; }
.sidebar-nav a svg     { width: 16px; height: 16px; flex-shrink: 0; }

.sidebar-menu-group { margin-bottom: 2px; }
.sidebar-dropdown-btn {
  display: flex; align-items: center; gap: 10px; width: 100%;
  padding: 9px 12px; border-radius: 6px; color: var(--gray-300);
  background: transparent; border: none; cursor: pointer;
  font-size: 13px; font-weight: 500; font-family: inherit;
  transition: background .15s, color .15s;
}
.sidebar-dropdown-btn:hover { background: rgba(255,255,255,.08); color: #fff; }
.sidebar-dropdown-btn.active { background: var(--primary); color: #fff; }
.sidebar-dropdown-btn svg { width: 16px; height: 16px; flex-shrink: 0; }
.dropdown-icon.rotate-180 { transform: rotate(180deg); }
.dropdown-icon { transition: transform 0.2s ease; margin-left: auto; }
.app-container.sidebar-collapsed .dropdown-icon { display: none !important; }

.sidebar-submenu { display: flex; flex-direction: column; padding-left: 26px; overflow: hidden; }
.sidebar-submenu a {
  padding: 7px 12px; font-size: 12px; margin-bottom: 2px;
  color: var(--gray-400); background: transparent; 
}
.sidebar-submenu a:hover { color: #fff; background: rgba(255,255,255,.04); }
.sidebar-submenu a.active { color: #fff; font-weight: 600; background: rgba(255,255,255,.08); }
.submenu-icon { width: 14px !important; height: 14px !important; opacity: 0.7; }
.sidebar-submenu a.active .submenu-icon { opacity: 1; }

.sidebar-user {
  padding: 14px 18px;
  border-top: 1px solid rgba(255,255,255,.1);
  font-size: 12px;
  color: var(--gray-400);
}
.sidebar-user strong { display: block; color: #fff; font-size: 13px; }

.main-content {
  margin-left: var(--sidebar-w);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.topbar {
  background: #fff;
  border-bottom: 1px solid var(--gray-200);
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky; top: 0; z-index: 50;
  box-shadow: var(--shadow);
}
.topbar-title { font-size: 16px; font-weight: 600; color: var(--gray-800); }
.topbar-brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.topbar-brand-logo {
  width: 22px;
  height: 22px;
  object-fit: contain;
}

.mobile-overlay { display: none; }
.mobile-overlay.open {
  display: block; position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 90;
}
.mobile-menu-btn {
  display: none; background: transparent; border: none; cursor: pointer; padding: 4px; color: var(--gray-800);
}
.desktop-toggle-btn {
  display: flex; align-items: center; justify-content: center;
}

.page-body { padding: 24px; flex: 1; }

/* ── Cards & Panels ─────────────────────── */
.card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--gray-100);
  display: flex; align-items: center; justify-content: space-between;
}
.card-header h2 { font-size: 15px; font-weight: 600; color: var(--gray-800); }
.card-body { padding: 20px; }

.dashboard-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.dashboard-home .dashboard-stats-grid { margin-bottom: 18px; }
.dashboard-home .dashboard-stat-card {
  border: 1px solid var(--gray-100);
  border-left-width: 4px;
  box-shadow: var(--shadow-md);
}
.dashboard-home .dashboard-stat-card .label { color: var(--gray-600); }
.dashboard-home .dashboard-stat-card .value {
  font-size: 26px;
  letter-spacing: -0.3px;
}
.dashboard-quick-card .card-header {
  background: linear-gradient(120deg, #eef4ff 0%, #f7faff 100%);
}
.dashboard-actions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}
.dashboard-action {
  display: block;
  text-decoration: none;
  border-radius: 10px;
  border: 1px solid var(--gray-200);
  background: linear-gradient(140deg, #ffffff 0%, #f8fafc 100%);
  padding: 14px 16px;
  transition: transform .15s ease, box-shadow .2s ease, border-color .2s ease;
}
.dashboard-action:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: #bfdbfe;
}
.dashboard-action-title {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: var(--gray-800);
  margin-bottom: 3px;
}
.dashboard-action-meta {
  display: block;
  font-size: 12px;
  color: var(--gray-500);
}
.dashboard-action-primary {
  border-color: #60a5fa;
  background: linear-gradient(140deg, #2563eb 0%, #1d4ed8 100%);
}
.dashboard-action-primary .dashboard-action-title,
.dashboard-action-primary .dashboard-action-meta {
  color: #fff;
}
.dashboard-shift-card .card-header {
  background: linear-gradient(120deg, #f8fafc 0%, #f3f4f6 100%);
}
.dashboard-shift-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

/* ── Stats grid ─────────────────────────── */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 18px 20px;
  box-shadow: var(--shadow);
}
.stat-card .label { font-size: 12px; font-weight: 500; color: var(--gray-500); text-transform: uppercase; letter-spacing: .4px; }
.stat-card .value { font-size: 24px; font-weight: 700; color: var(--gray-900); margin-top: 4px; }
.stat-card.blue   { border-left: 3px solid var(--primary); }
.stat-card.green  { border-left: 3px solid var(--success); }
.stat-card.yellow { border-left: 3px solid var(--warning); }
.stat-card.red    { border-left: 3px solid var(--danger); }

/* ── Tables ─────────────────────────────── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
thead th {
  padding: 10px 14px;
  text-align: left;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: var(--gray-500);
  background: var(--gray-50);
  border-bottom: 1px solid var(--gray-200);
}
tbody td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--gray-100);
  color: var(--gray-700);
  font-size: 13px;
}
tbody tr:hover { background: var(--gray-50); }
tbody tr:last-child td { border-bottom: none; }
.row-danger { background: var(--danger-light) !important; }

/* ── Buttons ────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 16px;
  border-radius: 6px;
  border: none;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  transition: opacity .15s, transform .1s;
  line-height: 1;
}
.btn:active { transform: scale(.97); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-primary   { background: var(--primary);   color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-success   { background: var(--success);   color: #fff; }
.btn-success:hover { opacity: .9; }
.btn-danger    { background: var(--danger);    color: #fff; }
.btn-danger:hover  { opacity: .9; }
.btn-secondary { background: var(--gray-200);  color: var(--gray-700); }
.btn-secondary:hover { background: var(--gray-300); }
.btn-outline   { background: transparent; border: 1px solid var(--gray-300); color: var(--gray-700); }
.btn-outline:hover { background: var(--gray-50); }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-lg { padding: 12px 24px; font-size: 15px; }
.btn-icon { padding: 6px; border-radius: 4px; background: transparent; border: none; cursor: pointer; color: var(--gray-400); }
.btn-icon:hover { color: var(--gray-700); background: var(--gray-100); }

/* ── Forms ──────────────────────────────── */
.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: 12px; font-weight: 600; color: var(--gray-600); margin-bottom: 5px; }
.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--gray-300);
  border-radius: 6px;
  font-size: 13px;
  color: var(--gray-800);
  background: #fff;
  transition: border-color .15s, box-shadow .15s;
  outline: none;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}
.form-textarea { resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.password-field { position: relative; }
.password-field .form-input { padding-right: 56px; }
.toggle-password {
  position: absolute;
  top: 50%;
  right: 8px;
  transform: translateY(-50%);
  border: none;
  background: transparent;
  color: var(--gray-500);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
}
.toggle-password:hover { color: var(--gray-700); }

/* Keep Tom Select dropdown above report cards/modals */
.ts-dropdown {
  z-index: 1200 !important;
}

/* ── Modal ──────────────────────────────── */
.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.45);
  display: flex; align-items: center; justify-content: center;
  z-index: 200;
  padding: 20px;
}
.modal {
  background: #fff;
  border-radius: 10px;
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
}
.modal-wide { max-width: 880px; }
.modal-header {
  padding: 18px 22px;
  border-bottom: 1px solid var(--gray-100);
  display: flex; align-items: center; justify-content: space-between;
}
.modal-header h3 { font-size: 16px; font-weight: 600; }
.modal-body  { padding: 22px; }
.modal-footer { padding: 14px 22px; border-top: 1px solid var(--gray-100); display: flex; gap: 10px; justify-content: flex-end; }

/* ── Badges ─────────────────────────────── */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 99px;
  font-size: 11px;
  font-weight: 600;
}
.badge-success { background: var(--success-light); color: var(--success); }
.badge-danger  { background: var(--danger-light);  color: var(--danger); }
.badge-warning { background: var(--warning-light); color: var(--warning); }
.badge-primary { background: var(--primary-light); color: var(--primary); }

/* ── Messages / Toasts ──────────────────── */
.messages { position: fixed; top: 16px; right: 16px; z-index: 300; display: flex; flex-direction: column; gap: 8px; }
.message {
  padding: 12px 18px;
  border-radius: 8px;
  box-shadow: var(--shadow-md);
  font-size: 13px;
  font-weight: 500;
  max-width: 340px;
  animation: slideIn .25s ease;
}
.message-success { background: var(--success-light); color: var(--success); border-left: 3px solid var(--success); }
.message-error   { background: var(--danger-light);  color: var(--danger);  border-left: 3px solid var(--danger); }
.message-warning { background: var(--warning-light); color: var(--warning); border-left: 3px solid var(--warning); }
.message-info    { background: var(--primary-light); color: var(--primary); border-left: 3px solid var(--primary); }

@keyframes slideIn { from { opacity: 0; transform: translateX(20px); } to { opacity: 1; transform: translateX(0); } }

/* ── Utilities ──────────────────────────── */
.flex        { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.mt-1 { margin-top: 4px; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mb-4 { margin-bottom: 16px; }
.text-sm { font-size: 12px; }
.text-muted { color: var(--gray-400); }
.text-danger { color: var(--danger); }
.text-success { color: var(--success); }
.font-bold { font-weight: 700; }
.font-medium { font-weight: 500; }
.w-full { width: 100%; }
.hidden { display: none !important; }

/* ── HTMX loading indicator ─────────────── */
.htmx-indicator { display: none; }
.htmx-request .htmx-indicator { display: inline-block; }
.htmx-request.htmx-indicator  { display: inline-block; }
.spinner {
  width: 16px; height: 16px;
  border: 2px solid var(--gray-200);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin .6s linear infinite;
  display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── POS Terminal ───────────────────────── */
.pos-layout { display: grid; grid-template-columns: 1fr 380px; gap: 20px; height: calc(100vh - 56px - 48px); }
.pos-products { overflow-y: auto; }
.pos-sidebar  { display: flex; flex-direction: column; gap: 0; overflow: hidden; }

.product-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 12px; padding: 4px; }
.product-card {
  background: #fff;
  border: 2px solid var(--gray-200);
  border-radius: 8px;
  padding: 14px;
  cursor: pointer;
  transition: border-color .15s, box-shadow .15s;
}
.product-card:hover { border-color: var(--primary); box-shadow: var(--shadow-md); }
.product-card.out-of-stock { opacity: .5; cursor: not-allowed; }
.product-card h4 { font-size: 13px; font-weight: 600; color: var(--gray-800); margin-bottom: 4px; }
.product-card .price { font-size: 15px; font-weight: 700; color: var(--primary); }
.product-card .stock { font-size: 11px; color: var(--gray-400); }
.product-card .stock.low { color: var(--danger); }

.cart-panel { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); display: flex; flex-direction: column; height: 100%; overflow: hidden; }
.cart-header { padding: 14px 16px; border-bottom: 1px solid var(--gray-100); font-weight: 600; font-size: 14px; }
.cart-items  { flex: 1; overflow-y: auto; padding: 10px; }
.cart-item   { padding: 8px; border-bottom: 1px solid var(--gray-100); }
.cart-item:last-child { border-bottom: none; }
.cart-item-name  { font-weight: 500; font-size: 13px; }
.cart-item-meta  { font-size: 11px; color: var(--gray-400); }
.qty-control { display: flex; align-items: center; gap: 8px; }
.qty-btn { width: 24px; height: 24px; border: 1px solid var(--gray-300); border-radius: 4px; background: #fff; cursor: pointer; font-size: 14px; display: flex; align-items: center; justify-content: center; }
.qty-btn:hover { background: var(--gray-100); }
.qty-input {
  width: 62px;
  padding: 3px 6px;
  border: 1px solid var(--gray-300);
  border-radius: 4px;
  text-align: center;
  font-weight: 600;
}
.qty-input.invalid {
  border-color: var(--danger);
  background: var(--danger-light);
}
.cart-total { padding: 14px 16px; border-top: 1px solid var(--gray-200); background: var(--gray-50); }
.cart-total .total-row { display: flex; justify-content: space-between; font-weight: 700; font-size: 16px; }
.payment-section { padding: 14px 16px; border-top: 1px solid var(--gray-200); }
.payment-methods { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px; margin-bottom: 12px; }
.payment-method-btn {
  padding: 8px 4px; border: 2px solid var(--gray-200); border-radius: 6px;
  background: #fff; cursor: pointer; font-size: 11px; font-weight: 600;
  text-align: center; color: var(--gray-600); transition: .15s;
}
.payment-method-btn.active { border-color: var(--primary); color: var(--primary); background: var(--primary-light); }
.session-sales-trigger {
  border: none;
  background: transparent;
  color: var(--primary);
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  padding: 0;
}
.session-sales-trigger:hover { text-decoration: underline; }
.session-sales-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}
.session-sales-tab {
  border: 1px solid var(--gray-300);
  background: #fff;
  color: var(--gray-700);
  border-radius: 8px;
  padding: 7px 12px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
}
.session-sales-tab.active {
  border-color: var(--primary);
  background: var(--primary-light);
  color: var(--primary);
}
.session-sales-summary {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 14px;
}
.session-sales-summary-table th,
.session-sales-summary-table td {
  padding: 8px 10px;
  font-size: 12px;
}
.session-sales-summary-table th {
  background: #fff;
  color: var(--gray-600);
}
.session-sales-sale-card {
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  overflow: hidden;
}
.session-sales-sale-card + .session-sales-sale-card { margin-top: 12px; }
.session-sales-sale-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 14px;
  background: var(--gray-50);
  border-bottom: 1px solid var(--gray-100);
}
.session-sales-items th,
.session-sales-items td {
  padding: 8px 10px;
  font-size: 12px;
}
.session-sales-items th {
  background: #fff;
  color: var(--gray-600);
}

/* ── Login Page ─────────────────────────── */
.login-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, #1e3a5f 0%, #2563eb 100%); }
.login-card { background: #fff; border-radius: 12px; box-shadow: var(--shadow-lg); padding: 40px; width: 100%; max-width: 380px; }
.login-card h1 { font-size: 22px; font-weight: 700; color: var(--gray-900); margin-bottom: 4px; }
.login-card p  { color: var(--gray-400); font-size: 13px; margin-bottom: 28px; }
.login-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}
.login-logo {
  width: 64px;
  height: 64px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.login-brand-text h1 {
  margin: 0;
}
.login-brand-text h4 {
  margin: 2px 0 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-500);
}
.login-logo img {
  width: 64px;
  height: 64px;
  object-fit: contain;
}

/* ── Empty state ─────────────────────────── */
.empty-state { text-align: center; padding: 60px 20px; color: var(--gray-400); }
.empty-state svg { width: 48px; height: 48px; margin: 0 auto 12px; opacity: .4; }

/* ── Responsiveness ─────────────────────── */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .main-content { margin-left: 0; }
  .mobile-menu-btn { display: flex; align-items: center; justify-content: center; }
  .desktop-toggle-btn { display: none !important; }
  .pos-layout { grid-template-columns: 1fr; height: auto; }
  .form-row { grid-template-columns: 1fr; }
  .dashboard-actions-grid { grid-template-columns: 1fr; }
  .dashboard-shift-grid { grid-template-columns: 1fr; gap: 12px; }
  .dashboard-home .dashboard-stat-card .value { font-size: 22px; }
  .session-sales-summary { grid-template-columns: 1fr; }
}