/* UAE Small Business ERP - Design System & Stylesheet */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

:root {
  --font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  /* Primary & Brand Colors */
  --brand-primary: #0f766e;
  --brand-primary-hover: #0d655e;
  --brand-primary-light: #f0fdfa;
  --brand-accent: #0284c7;
  
  /* Neutral / Surface */
  --bg-app: #f8fafc;
  --bg-card: #ffffff;
  --bg-sidebar: #0f172a;
  --bg-sidebar-hover: #1e293b;
  --bg-sidebar-active: #134e4a;
  
  /* Text */
  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --text-inverse: #ffffff;
  
  /* Borders & Dividers */
  --border-color: #e2e8f0;
  --border-color-light: #f1f5f9;
  --border-focus: #0f766e;
  
  /* Status Colors */
  --status-paid-bg: #dcfce7;
  --status-paid-text: #15803d;
  --status-partial-bg: #fef9c3;
  --status-partial-text: #a16207;
  --status-overdue-bg: #fee2e2;
  --status-overdue-text: #b91c1c;
  --status-draft-bg: #f1f5f9;
  --status-draft-text: #475569;
  --status-sent-bg: #e0f2fe;
  --status-sent-text: #0369a1;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.03);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
  
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: var(--font-family);
}

body {
  background-color: var(--bg-app);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

/* Sidebar */
.sidebar {
  width: 260px;
  background-color: var(--bg-sidebar);
  color: var(--text-inverse);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  transition: all 0.2s ease;
  z-index: 40;
}

.sidebar-header {
  padding: 24px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-badge {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, #0f766e, #0d9488);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 800;
  color: white;
  box-shadow: 0 2px 8px rgba(15, 118, 110, 0.4);
}

.brand-info h1 {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.3px;
  line-height: 1.2;
}

.brand-info span {
  font-size: 11px;
  color: #94a3b8;
  font-weight: 500;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.sidebar-nav {
  padding: 16px 12px;
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-section-title {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  color: #64748b;
  letter-spacing: 0.8px;
  padding: 14px 12px 6px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  color: #cbd5e1;
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: all 0.15s ease;
  cursor: pointer;
}

.nav-item:hover {
  background-color: var(--bg-sidebar-hover);
  color: white;
}

.nav-item.active {
  background-color: var(--bg-sidebar-active);
  color: white;
  font-weight: 600;
}

.nav-icon {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 12px;
  color: #94a3b8;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.vat-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(15, 118, 110, 0.25);
  color: #5eead4;
  padding: 4px 10px;
  border-radius: 9999px;
  font-size: 11px;
  font-weight: 600;
  border: 1px solid rgba(94, 234, 212, 0.2);
}

/* Main Content Area */
.main-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

/* Top Header */
.top-header {
  height: 64px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.page-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.4px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.quick-action-btn {
  background: var(--brand-primary);
  color: white;
  border: none;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.15s ease;
  box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}

.quick-action-btn:hover {
  background: var(--brand-primary-hover);
}

.btn-secondary {
  background: white;
  color: var(--text-main);
  border: 1px solid var(--border-color);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.15s ease;
}

.btn-secondary:hover {
  background: var(--bg-app);
  border-color: #cbd5e1;
}

/* Content Body - Optimized for 100% Display Resolution */
.content-body {
  flex: 1;
  padding: 16px 22px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* KPI Summary Cards */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
}

.kpi-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 4px;
  position: relative;
  overflow: hidden;
}

.kpi-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--brand-primary);
}

.kpi-card.kpi-today::before { background: #10b981; }
.kpi-card.kpi-cash::before { background: #d97706; }
.kpi-card.kpi-ziina::before { background: #6366f1; }
.kpi-card.kpi-ar::before { background: #2563eb; }
.kpi-card.kpi-ap::before { background: #ea580c; }
.kpi-card.kpi-vat::before { background: #059669; }
.kpi-card.kpi-profit::before { background: #7c3aed; }

.kpi-card.interactive-card, .metric-card.interactive-card {
  cursor: pointer;
  transition: transform 0.18s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.18s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.18s ease;
  user-select: none;
}
.kpi-card.interactive-card:hover, .metric-card.interactive-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 20px -5px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  border-color: #0284c7;
}
.kpi-card.interactive-card:active, .metric-card.interactive-card:active {
  transform: translateY(-1px);
}

.kpi-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.kpi-value {
  font-size: 20px;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.5px;
}

.kpi-sub {
  font-size: 11px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Cards & Panels */
.panel {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: visible;
  position: relative;
}

.panel-header {
  padding: 12px 18px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #ffffff;
}

.panel-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 8px;
}

.panel-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Filter & Search Bar */
.filter-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 16px;
  background: #f8fafc;
  border-bottom: 1px solid var(--border-color);
  flex-wrap: wrap;
}

.search-input {
  background: white;
  border: 1px solid var(--border-color);
  padding: 7px 12px;
  border-radius: var(--radius-sm);
  font-size: 12.5px;
  min-width: 220px;
  outline: none;
  transition: border-color 0.15s;
}

.search-input:focus {
  border-color: var(--border-focus);
}

.filter-select {
  background: white;
  border: 1px solid var(--border-color);
  padding: 7px 10px;
  border-radius: var(--radius-sm);
  font-size: 12.5px;
  outline: none;
  cursor: pointer;
}

/* Tables */
.table-responsive {
  width: 100%;
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 12.5px;
}

.data-table th {
  background: #f8fafc;
  padding: 10px 14px;
  color: var(--text-muted);
  font-weight: 700;
  border-bottom: 1px solid var(--border-color);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.data-table td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border-color-light);
  color: var(--text-main);
  vertical-align: middle;
  white-space: nowrap;
}

.data-table th.wrap, .data-table td.wrap {
  white-space: normal;
}

.data-table tr:hover td {
  background: #fbfcfe;
}

/* Pagination Bar & Controls - Sticky & High Visibility */
.pagination-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 10px 16px;
  background: #f8fafc;
  border-top: 1px solid var(--border-color);
  font-size: 12px;
  position: sticky;
  bottom: 0;
  z-index: 10;
  box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.04);
}

.pagination-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 28px;
  height: 28px;
  padding: 0 6px;
  font-size: 11.5px;
  font-weight: 700;
  color: #334155;
  background: #ffffff;
  border: 1px solid #cbd5e1;
  border-radius: 5px;
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
}

.pagination-btn:hover:not(.disabled):not(:disabled) {
  background: #f1f5f9;
  border-color: #94a3b8;
  color: #0f172a;
}

.pagination-btn.active {
  background: var(--brand-primary, #0f766e) !important;
  color: #ffffff !important;
  border-color: var(--brand-primary, #0f766e) !important;
  box-shadow: 0 2px 5px rgba(15, 118, 110, 0.25);
}

.pagination-btn.disabled,
.pagination-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  background: #f8fafc;
  border-color: #e2e8f0;
  color: #94a3b8;
}

.pagination-ellipsis {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  font-weight: 700;
  color: #94a3b8;
  user-select: none;
}

.pagination-page-size-select {
  padding: 4px 8px;
  border: 1px solid #cbd5e1;
  border-radius: 5px;
  font-size: 11.5px;
  font-weight: 600;
  background: #ffffff;
  color: #0f172a;
  outline: none;
  cursor: pointer;
}

/* Status Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px;
  border-radius: 9999px;
  font-size: 11px;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
}

.badge-paid { background: var(--status-paid-bg); color: var(--status-paid-text); }
.badge-partial { background: var(--status-partial-bg); color: var(--status-partial-text); }
.badge-overdue { background: var(--status-overdue-bg); color: var(--status-overdue-text); }
.badge-draft { background: var(--status-draft-bg); color: var(--status-draft-text); }
.badge-sent { background: var(--status-sent-bg); color: var(--status-sent-text); }
.badge-accepted { background: #dcfce7; color: #166534; }
.badge-low-stock { background: #fee2e2; color: #991b1b; }
.badge-in-stock { background: #f0fdf4; color: #15803d; }

/* Action Links & Buttons */
.action-btn {
  padding: 5px 10px;
  font-size: 12px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: white;
  cursor: pointer;
  transition: all 0.15s ease;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
}

.action-btn:hover {
  background: #f1f5f9;
  border-color: #cbd5e1;
}

.action-btn.btn-convert {
  background: var(--brand-primary-light);
  color: var(--brand-primary);
  border-color: #99f6e4;
}

.action-btn.btn-convert:hover {
  background: #ccfbf1;
}

/* Modals */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(2px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-box {
  background: white;
  width: 95%;
  max-width: 980px;
  max-height: 94vh;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform: translateY(12px);
  transition: transform 0.2s ease;
}

.modal-overlay.active .modal-box {
  transform: translateY(0);
}

@keyframes modalShake {
  0%, 100% { transform: translateY(0) scale(1); }
  20%, 60% { transform: translateY(0) scale(1.008) translateX(-7px); }
  40%, 80% { transform: translateY(0) scale(1.008) translateX(7px); }
}

.modal-box.modal-shake {
  animation: modalShake 0.35s ease-in-out;
  box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.45), var(--shadow-xl) !important;
}

.modal-header {
  padding: 16px 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
  background: #ffffff;
  position: sticky;
  top: 0;
  z-index: 20;
}

.modal-title {
  font-size: 18px;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.2px;
}

.modal-close {
  background: none;
  border: none;
  font-size: 24px;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  line-height: 1;
}

.modal-body {
  padding: 22px 26px;
  overflow-y: auto;
  overflow-x: visible;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  background: #f8fafc;
  flex-shrink: 0;
  position: sticky;
  bottom: 0;
  z-index: 20;
}

/* Forms */
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.form-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group.full-width {
  grid-column: span 2;
}

.form-label {
  font-size: 12px;
  font-weight: 600;
  color: #334155;
}

.form-input, .form-textarea, .form-select {
  padding: 9px 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 13px;
  outline: none;
  background: white;
  transition: border-color 0.15s;
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  border-color: var(--brand-primary);
  box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.1);
}

/* Line Item Builder for Invoices / Quotes */
.line-items-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin-top: 8px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: white;
  overflow: visible !important;
}

.line-items-table th {
  background: #f8fafc;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  color: #475569;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-color);
  letter-spacing: 0.3px;
}

.line-items-table td {
  padding: 10px 12px;
  border-bottom: 1px solid #f1f5f9;
  vertical-align: top !important;
  position: relative;
  overflow: visible !important;
}

.line-items-table tr:last-child td {
  border-bottom: none;
}

.line-item-desc-wrap {
  display: flex;
  flex-direction: column;
  gap: 6px;
  width: 100%;
}

.line-item-desc-wrap .form-select {
  font-size: 12.5px;
  font-weight: 600;
  background-color: #f8fafc;
  padding: 7px 10px;
}

.line-item-desc-wrap .form-input {
  font-size: 12px;
  padding: 6px 10px;
}

.btn-icon-danger {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 14px;
  color: #ef4444;
  opacity: 0.7;
  padding: 6px;
  border-radius: 4px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s ease;
}

.btn-icon-danger:hover {
  opacity: 1;
  background: #fee2e2;
}

/* Product Live Search & Autocomplete Dropdown */
.product-search-wrapper {
  position: relative;
  width: 100%;
}

.line-search-input {
  width: 100%;
  font-size: 12.5px;
  font-weight: 600;
  color: #0f172a;
}

.line-search-input:focus {
  border-color: #0284c7;
  box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.15);
}

.item-detail-badge {
  display: flex;
  margin-top: 4px;
  padding: 3px 8px;
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  border-radius: 4px;
  font-size: 11px;
  color: #166534;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  line-height: 1.3;
}

.product-search-dropdown {
  position: absolute;
  top: calc(100% + 2px);
  left: 0;
  width: 480px;
  max-width: 85vw;
  max-height: 290px;
  overflow-y: auto;
  background: #ffffff !important;
  border: 1px solid #cbd5e1 !important;
  border-radius: var(--radius-sm);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.16), 0 0 0 1px rgba(2, 132, 199, 0.2) !important;
  z-index: 999999 !important;
  margin-top: 2px;
}

.product-search-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  cursor: pointer;
  border-bottom: 1px solid #f1f5f9;
  font-size: 12px;
  background: #ffffff;
  transition: background 0.1s ease;
}

.product-search-item:last-child {
  border-bottom: none;
}

.product-search-item:hover,
.product-search-item.highlighted {
  background: #f0fdf4 !important;
}

.prod-search-sku {
  font-weight: 800;
  color: #0284c7;
  margin-right: 6px;
  font-family: monospace;
}

.prod-search-name {
  font-weight: 600;
  color: #0f172a;
}

.prod-search-stock {
  display: inline-block;
  font-size: 10px;
  padding: 2px 6px;
  background: #f1f5f9;
  border-radius: 4px;
  color: #475569;
  margin-left: 6px;
  font-weight: 600;
}

.prod-search-stock.low {
  background: #fee2e2;
  color: #991b1b;
  font-weight: 700;
}

.prod-search-price {
  font-weight: 800;
  color: #15803d;
  font-size: 13px;
  white-space: nowrap;
  margin-left: 12px;
}

.summary-calculation-box {
  margin-top: 14px;
  margin-left: auto;
  width: 320px;
  background: #f8fafc;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 13px;
}

.calc-row {
  display: flex;
  justify-content: space-between;
  color: var(--text-muted);
}

.calc-row.total-row {
  border-top: 1px solid var(--border-color);
  padding-top: 8px;
  font-size: 15px;
  font-weight: 800;
  color: var(--text-main);
}

/* UAE FTA VAT 201 Report Styling */
.fta-box-card {
  border: 1px solid #cbd5e1;
  border-radius: var(--radius-md);
  margin-bottom: 20px;
  background: white;
  overflow: hidden;
}

.fta-box-header {
  background: #0f172a;
  color: white;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.fta-box-header h3 {
  font-size: 15px;
  font-weight: 700;
}

.fta-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.fta-table th {
  background: #f1f5f9;
  padding: 10px 14px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  color: #475569;
  border-bottom: 2px solid #cbd5e1;
}

.fta-table td {
  padding: 12px 14px;
  border-bottom: 1px solid #e2e8f0;
}

.fta-table tr.highlight-row td {
  background: #f0fdf4;
  font-weight: 700;
}

.fta-box-num {
  font-weight: 800;
  color: #0f766e;
}

/* Printable Tax Invoice View */
.tax-invoice-printable, .a4-invoice-wrapper {
  background: white;
  padding: 28px 32px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  max-width: 860px;
  margin: 0 auto;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  color: #0f172a;
}

.invoice-header-grid {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 20px;
  border-bottom: 2px solid #0f172a;
  padding-bottom: 16px;
  gap: 16px;
}

.invoice-meta-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 16px;
  margin-bottom: 20px;
  padding: 14px 18px;
  background: #f8fafc;
  border-radius: var(--radius-sm);
  border: 1px solid #e2e8f0;
  font-size: 12.5px;
}

.a4-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 14px;
  margin-bottom: 18px;
  font-size: 12px;
}

.a4-table th {
  background: #0f172a;
  color: #ffffff;
  padding: 9px 12px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border: 1px solid #0f172a;
}

.a4-table td {
  padding: 9px 12px;
  border: 1px solid #e2e8f0;
  color: #1e293b;
  vertical-align: middle;
  font-variant-numeric: tabular-nums;
}

.a4-table tbody tr:nth-child(even) {
  background: #fbfcfd;
}

.a4-bank-box {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-size: 11.5px;
  color: #475569;
  line-height: 1.5;
}

.a4-signature-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px dashed #cbd5e1;
  font-size: 11.5px;
}

.signature-line-box {
  margin-top: 40px;
  border-top: 1px solid #94a3b8;
  padding-top: 6px;
  text-align: center;
  font-size: 11px;
  color: #64748b;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 200;
}

.toast {
  background: #0f172a;
  color: white;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 10px;
  animation: slideIn 0.2s ease forwards;
}

.toast.toast-success {
  border-left: 4px solid #10b981;
}

.toast.toast-error {
  border-left: 4px solid #ef4444;
}

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* ----------------------------------------------------
   17. STRICT A4 PRINTING & BARCODE LABELS
---------------------------------------------------- */
.barcode-card {
  background: white;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: transform 0.15s, box-shadow 0.15s;
}

.barcode-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-color);
}

.barcode-scanner-box {
  background: #f8fafc;
  border: 2px dashed #0284c7;
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: center;
  margin-bottom: 20px;
}

.cost-inspector-badge {
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  border-radius: var(--radius-md);
  padding: 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 12px;
}

/* ----------------------------------------------------
   18. AUTHENTICATION & LOGIN PORTAL
---------------------------------------------------- */
.login-container {
  min-height: 100vh;
  width: 100%;
  background: radial-gradient(circle at 50% 15%, #0f172a 0%, #020617 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.login-card {
  width: 100%;
  max-width: 450px;
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.1);
  animation: fadeInModal 0.25s ease-out;
}

/* ----------------------------------------------------
   19. MOBILE RESPONSIVENESS & TOUCH ADAPTIVE UI
---------------------------------------------------- */
.hamburger-btn {
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 32px;
  height: 28px;
  background: transparent;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  cursor: pointer;
  padding: 5px 6px;
  z-index: 105;
  transition: background 0.15s ease;
}

.hamburger-btn:hover {
  background: #f1f5f9;
}

.hamburger-btn span {
  display: block;
  width: 100%;
  height: 2px;
  background: #0f172a;
  border-radius: 2px;
  transition: all 0.2s ease;
}

.mobile-sidebar-close {
  display: none;
  background: none;
  border: none;
  color: #cbd5e1;
  font-size: 26px;
  cursor: pointer;
  padding: 2px 8px;
  line-height: 1;
}

.mobile-sidebar-close:hover {
  color: #ffffff;
}

.sidebar-backdrop {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(2px);
  z-index: 110;
  opacity: 0;
  transition: opacity 0.25s ease;
  pointer-events: none;
}

.sidebar-backdrop.active {
  display: block;
  opacity: 1;
  pointer-events: auto;
}

.mobile-bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 60px;
  background: #ffffff;
  border-top: 1px solid #e2e8f0;
  box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.08);
  z-index: 99;
  justify-content: space-around;
  align-items: center;
  padding: 4px 6px env(safe-area-inset-bottom, 4px) 6px;
}

.mobile-nav-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  color: #64748b;
  font-size: 10px;
  font-weight: 600;
  padding: 4px 6px;
  border-radius: 6px;
  cursor: pointer;
  gap: 2px;
  transition: color 0.15s, transform 0.1s;
  flex: 1;
  max-width: 68px;
}

.mobile-nav-btn .m-icon {
  font-size: 17px;
  line-height: 1;
}

.mobile-nav-btn.active, .mobile-nav-btn:hover {
  color: var(--brand-primary);
  font-weight: 700;
}

/* Responsive Table Scrollers */
.table-responsive, .data-table-container {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--radius-sm);
}

.data-table {
  min-width: 680px;
}

/* Touch Friendly Targets */
@media (pointer: coarse) {
  .nav-item {
    padding: 12px 14px;
    font-size: 14px;
  }
  .form-input, .form-select, .action-btn, .quick-action-btn {
    min-height: 40px;
  }
  .modal-close {
    padding: 8px;
    font-size: 28px;
  }
}

/* Tablet & Mobile Breakpoint (<= 900px) */
@media screen and (max-width: 900px) {
  .hamburger-btn {
    display: flex;
  }

  .mobile-sidebar-close {
    display: block;
  }

  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 120;
    transform: translateX(-100%);
    transition: transform 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    width: 280px;
    box-shadow: 6px 0 24px rgba(0, 0, 0, 0.35);
  }

  .sidebar.active {
    transform: translateX(0);
  }

  .main-wrapper {
    width: 100%;
    margin-left: 0;
  }

  .desktop-only-btn {
    display: none !important;
  }

  .header-user-info {
    display: none !important;
  }

  .logout-text {
    display: none;
  }

  .mobile-bottom-nav {
    display: flex;
  }

  .content-body {
    padding: 14px 12px 75px 12px;
  }

  .top-header {
    padding: 10px 14px;
  }

  .page-title {
    font-size: 16px;
  }

  .kpi-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .kpi-card {
    padding: 14px 16px;
  }

  .kpi-value {
    font-size: 19px;
  }

  .form-grid, .form-grid-3 {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .modal-box {
    width: 96vw !important;
    max-width: 96vw !important;
    max-height: 94vh !important;
    margin: auto !important;
    border-radius: 12px;
    display: flex !important;
    flex-direction: column !important;
    overflow: hidden !important;
  }

  .modal-header {
    padding: 14px 16px;
    position: sticky;
    top: 0;
    z-index: 25;
    background: #ffffff;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
  }

  .modal-body {
    padding: 14px 16px;
    overflow-y: auto !important;
    -webkit-overflow-scrolling: touch;
    flex: 1;
  }

  .modal-footer {
    padding: 12px 16px;
    position: sticky;
    bottom: 0;
    z-index: 25;
    background: #f8fafc;
    box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.08);
  }

  /* Mobile Touch-Friendly Ergonomics & iOS Zoom Prevention */
  .form-input, .form-select, .form-textarea {
    font-size: 16px !important; /* Prevents Safari viewport auto-zoom */
    min-height: 42px;
  }

  .quick-action-btn, .btn-secondary {
    min-height: 44px;
    padding: 10px 18px;
    font-size: 13.5px;
    touch-action: manipulation;
  }

  .action-btn {
    min-height: 38px;
    padding: 8px 12px;
    font-size: 12px;
    touch-action: manipulation;
  }

  .line-items-table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    width: 100%;
    min-width: 600px;
  }

  .summary-calculation-box {
    width: 100%;
    margin-left: 0;
  }

  .product-search-dropdown {
    width: 100% !important;
    max-width: calc(96vw - 40px) !important;
  }

  .filter-bar {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }

  .filter-select, .search-input {
    width: 100%;
  }

  /* Two Column Dashboard Panels wrap on tablets/mobile */
  div[style*="grid-template-columns: 2fr 1fr"],
  div[style*="grid-template-columns: 1fr 1fr"] {
    grid-template-columns: 1fr !important;
  }

  /* Invoice Print Preview Responsive */
  .tax-invoice-printable, .a4-invoice-wrapper {
    padding: 16px 14px;
  }

  .invoice-meta-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .a4-signature-section {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}

/* Smartphone Portrait Breakpoint (<= 480px) */
@media screen and (max-width: 480px) {
  .kpi-grid {
    grid-template-columns: 1fr;
  }

  .page-title {
    font-size: 15px;
  }

  .top-header {
    padding: 8px 10px;
  }

  .quick-action-btn {
    padding: 7px 12px;
    font-size: 12px;
  }

  .login-card {
    padding: 24px 18px;
  }
}

/* ====================================================
   PRINT STYLESHEET (STRICT A4 PORTRAIT)
   ==================================================== */
@media print {
  @page {
    size: A4 portrait;
    margin: 6mm 10mm 6mm 10mm;
  }
  
  html, body {
    background: #ffffff !important;
    color: #0f172a !important;
    font-size: 10pt !important;
    width: 100% !important;
    height: auto !important;
    margin: 0 !important;
    padding: 0 !important;
    overflow: visible !important;
    -webkit-print-color-adjust: exact !important;
    print-color-adjust: exact !important;
  }

  /* 1. Hide UI elements not meant for print */
  #login-portal,
  .sidebar, 
  .top-header, 
  .filter-bar, 
  .panel-actions, 
  .quick-action-btn, 
  .btn-secondary, 
  .modal-close, 
  .modal-footer, 
  .no-print, 
  .action-btn, 
  .toast-container,
  .brand-badge {
    display: none !important;
    visibility: hidden !important;
  }

  /* 2. CRITICAL FIX: When modal is active, HIDE the background app container completely */
  body.modal-open .app-container,
  body:has(.modal-overlay.active) .app-container,
  .modal-overlay.active ~ .app-container {
    display: none !important;
    visibility: hidden !important;
    height: 0 !important;
    overflow: hidden !important;
  }

  /* 3. Display the modal as the full-page A4 document */
  .modal-overlay.active {
    position: static !important;
    display: block !important;
    width: 100% !important;
    max-width: 100% !important;
    background: transparent !important;
    padding: 0 !important;
    margin: 0 !important;
    border: none !important;
    box-shadow: none !important;
    z-index: 99999 !important;
  }

  .modal-overlay.active .modal-box {
    position: static !important;
    display: block !important;
    width: 100% !important;
    max-width: 100% !important;
    margin: 0 auto !important;
    padding: 0 !important;
    border: none !important;
    box-shadow: none !important;
    background: #ffffff !important;
  }

  .modal-overlay.active .modal-header {
    display: none !important;
  }

  .modal-overlay.active .modal-body {
    padding: 0 !important;
    margin: 0 !important;
    width: 100% !important;
    max-width: 100% !important;
  }

  /* 4. If printing from main view directly (without modal): */
  .app-container, 
  .main-wrapper, 
  .content-body {
    display: block !important;
    padding: 0 !important;
    margin: 0 auto !important;
    height: auto !important;
    overflow: visible !important;
    width: 100% !important;
    max-width: 190mm !important;
  }

  /* 5. A4 Printable Document Container - Strict Full-Page Layout */
  .tax-invoice-printable, .fta-box-card {
    width: 100% !important;
    max-width: 190mm !important;
    min-height: 260mm !important;
    display: flex !important;
    flex-direction: column !important;
    justify-content: space-between !important;
    box-sizing: border-box !important;
    margin: 0 auto !important;
    padding: 0 !important;
    border: none !important;
    box-shadow: none !important;
    background: transparent !important;
    page-break-after: avoid;
    page-break-inside: avoid;
  }

  .a4-doc-body {
    flex: 1 1 auto !important;
    width: 100% !important;
  }

  .a4-doc-footer-wrap,
  .a4-document-footer {
    margin-top: auto !important;
    flex: 0 0 auto !important;
    width: 100% !important;
    page-break-inside: avoid !important;
    break-inside: avoid !important;
    padding-bottom: 1mm !important;
  }

  .a4-table, .fta-table {
    width: 100% !important;
    border-collapse: collapse !important;
    page-break-inside: auto;
  }

  .a4-table tr, .fta-table tr {
    page-break-inside: avoid;
    page-break-after: auto;
  }

  .a4-table th, .fta-table th {
    background: #0f172a !important;
    color: #ffffff !important;
    border: 1px solid #0f172a !important;
    padding: 7px 9px !important;
    font-size: 8.5pt !important;
    -webkit-print-color-adjust: exact !important;
    print-color-adjust: exact !important;
  }

  .a4-table td, .fta-table td {
    border: 1px solid #cbd5e1 !important;
    padding: 6px 9px !important;
    font-size: 8.5pt !important;
  }

  .summary-calculation-box, .a4-bank-box {
    background: #f8fafc !important;
    border: 1px solid #cbd5e1 !important;
    page-break-inside: avoid;
  }

  /* Barcode Sticker Label Sheet Printing */
  #selected-label-printable {
    display: block !important;
  }

  .barcode-sheet-grid {
    display: grid !important;
    grid-template-columns: repeat(3, 1fr) !important;
    gap: 5mm !important;
    width: 100% !important;
  }

  .barcode-sticker {
    border: 1px dashed #cbd5e1 !important;
    padding: 3mm !important;
    text-align: center !important;
    page-break-inside: avoid !important;
    background: #ffffff !important;
    border-radius: 4px !important;
  }

  .quotation-draft-watermark {
    position: absolute !important;
    top: 48% !important;
    left: 50% !important;
    transform: translate(-50%, -50%) rotate(-30deg) !important;
    font-size: 46pt !important;
    font-weight: 900 !important;
    color: rgba(220, 38, 38, 0.22) !important;
    text-transform: uppercase !important;
    letter-spacing: 4px !important;
    pointer-events: none !important;
    border: 4pt dashed rgba(220, 38, 38, 0.35) !important;
    padding: 10mm 20mm !important;
    border-radius: 8mm !important;
    white-space: nowrap !important;
    z-index: 100 !important;
    text-align: center !important;
    line-height: 1.15 !important;
    -webkit-print-color-adjust: exact !important;
    print-color-adjust: exact !important;
  }
}