/* 
 * ====================================================================
 * SiamStock Pro - Design System & Modern UI Styles
 * Color Palette: Industrial Slate (#0F172A, #1E293B) + Emerald Green (#059669)
 * Typography: Noto Sans Thai + Inter
 * ====================================================================
 */

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

:root {
  --font-sans: 'Noto Sans Thai', 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  
  /* Color Palette - Light Mode */
  --bg-primary: #F8FAFC;
  --bg-surface: #FFFFFF;
  --bg-surface-hover: #F1F5F9;
  --bg-sidebar: #0F172A;
  --bg-sidebar-hover: #1E293B;
  
  --text-primary: #0F172A;
  --text-secondary: #475569;
  --text-muted: #64748B;
  --text-inverse: #FFFFFF;
  
  --border-subtle: #E2E8F0;
  --border-strong: #CBD5E1;
  
  --primary: #059669;
  --primary-hover: #047857;
  --primary-light: #ECFDF5;
  --primary-text: #065F46;
  
  --accent-blue: #2563EB;
  --accent-blue-light: #EFF6FF;
  --accent-blue-text: #1D4ED8;
  
  --warning: #D97706;
  --warning-light: #FEF3C7;
  --warning-text: #B45309;
  
  --danger: #DC2626;
  --danger-light: #FEE2E2;
  --danger-text: #B91C1C;
  
  --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, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
  
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-full: 9999px;
  
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Mode Variables */
[data-theme="dark"] {
  --bg-primary: #090D16;
  --bg-surface: #111827;
  --bg-surface-hover: #1F2937;
  --bg-sidebar: #05080E;
  --bg-sidebar-hover: #111827;
  
  --text-primary: #F9FAFB;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --text-inverse: #0F172A;
  
  --border-subtle: #1F2937;
  --border-strong: #374151;
  
  --primary: #10B981;
  --primary-hover: #059669;
  --primary-light: rgba(16, 185, 129, 0.15);
  --primary-text: #34D399;
  
  --accent-blue: #3B82F6;
  --accent-blue-light: rgba(59, 130, 246, 0.15);
  --accent-blue-text: #60A5FA;
  
  --warning: #F59E0B;
  --warning-light: rgba(245, 158, 11, 0.15);
  --warning-text: #FBBF24;
  
  --danger: #EF4444;
  --danger-light: rgba(239, 68, 68, 0.15);
  --danger-text: #F87171;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6);
}

/* Reset & Global */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* Typography Helpers */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

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

/* Sidebar Navigation */
.app-sidebar {
  width: 260px;
  background-color: var(--bg-sidebar);
  color: #F8FAFC;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  transition: transform var(--transition-normal);
  z-index: 40;
}

.sidebar-header {
  padding: 1.25rem 1.25rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.brand-icon-box {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, #059669 0%, #10B981 100%);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  box-shadow: 0 4px 12px rgba(5, 150, 105, 0.35);
}

.brand-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: #FFFFFF;
  line-height: 1.2;
}

.brand-subtitle {
  font-size: 0.75rem;
  color: #94A3B8;
}

.sidebar-nav {
  padding: 1rem 0.75rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  overflow-y: auto;
}

.nav-section-title {
  font-size: 0.7rem;
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: #64748B;
  padding: 0.5rem 0.75rem 0.25rem;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.7rem 0.85rem;
  border-radius: var(--radius-md);
  color: #94A3B8;
  text-decoration: none;
  font-size: 0.925rem;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition-fast);
  min-height: 44px;
}

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

.nav-item.active {
  background-color: var(--primary);
  color: #FFFFFF;
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(5, 150, 105, 0.3);
}

.nav-item .badge-count {
  margin-left: auto;
  background: rgba(255, 255, 255, 0.2);
  color: #FFFFFF;
  font-size: 0.75rem;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-full);
  font-weight: 600;
}

.nav-item.active .badge-count {
  background: rgba(0, 0, 0, 0.25);
}

.sidebar-footer {
  padding: 1rem 0.85rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(0, 0, 0, 0.2);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* User Card in Sidebar */
.user-profile-card {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.05);
}

.user-avatar {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-full);
  object-fit: cover;
  border: 2px solid #059669;
  flex-shrink: 0;
}

.user-info {
  flex: 1;
  min-width: 0;
}

.user-name {
  font-size: 0.875rem;
  font-weight: 600;
  color: #FFFFFF;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-role-badge {
  font-size: 0.7rem;
  font-weight: 500;
  display: inline-block;
  padding: 0.1rem 0.4rem;
  border-radius: var(--radius-sm);
  background: rgba(5, 150, 105, 0.3);
  color: #34D399;
}

.user-role-badge.role-admin {
  background: rgba(220, 38, 38, 0.25);
  color: #F87171;
}

.user-role-badge.role-manager {
  background: rgba(217, 119, 6, 0.25);
  color: #FBBF24;
}

.user-role-badge.role-staff {
  background: rgba(37, 99, 235, 0.25);
  color: #93C5FD;
}

/* Main Content Area */
.app-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 100vh;
}

/* Top App Header */
.app-header {
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  position: sticky;
  top: 0;
  z-index: 30;
  box-shadow: var(--shadow-sm);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.header-title-box h1 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.header-subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Sync Status Indicator */
.sync-status-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.75rem;
  background: var(--bg-surface-hover);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  min-height: 38px;
}

.sync-status-btn:hover {
  background: var(--primary-light);
  border-color: var(--primary);
  color: var(--primary-text);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background-color: #94A3B8;
}

.status-dot.online {
  background-color: #10B981;
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
}

.status-dot.syncing {
  background-color: #F59E0B;
  animation: pulse-dot 1.5s infinite;
}

@keyframes pulse-dot {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(245, 158, 11, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(245, 158, 11, 0); }
}

/* Page Body */
.page-body {
  padding: 1.5rem;
  flex: 1;
  max-width: 1440px;
  margin: 0 auto;
  width: 100%;
}

/* Real-Time KPI Cards */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.kpi-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.kpi-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.kpi-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--border-strong);
}

.kpi-card.kpi-primary::before { background: var(--primary); }
.kpi-card.kpi-warning::before { background: var(--warning); }
.kpi-card.kpi-danger::before { background: var(--danger); }
.kpi-card.kpi-blue::before { background: var(--accent-blue); }

.kpi-info {
  display: flex;
  flex-direction: column;
}

.kpi-label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}

.kpi-value {
  font-size: 1.85rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.1;
}

.kpi-unit {
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--text-muted);
  margin-left: 0.35rem;
}

.kpi-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.35rem;
}

.kpi-icon-box {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.kpi-icon-box.bg-primary-box { background: var(--primary-light); color: var(--primary); }
.kpi-icon-box.bg-warning-box { background: var(--warning-light); color: var(--warning); }
.kpi-icon-box.bg-danger-box { background: var(--danger-light); color: var(--danger); }
.kpi-icon-box.bg-blue-box { background: var(--accent-blue-light); color: var(--accent-blue); }

/* Quick Action Banner */
.quick-action-banner {
  background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  color: white;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-md);
  flex-wrap: wrap;
}

.quick-action-text h2 {
  color: white;
  font-size: 1.15rem;
  font-weight: 600;
}

.quick-action-text p {
  color: #94A3B8;
  font-size: 0.85rem;
}

.quick-action-btns {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

/* Charts Grid */
.charts-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

@media (max-width: 1024px) {
  .charts-grid {
    grid-template-columns: 1fr;
  }
}

.dashboard-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-subtle);
}

.card-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.55rem 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  font-family: inherit;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  min-height: 40px;
  line-height: 1;
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background-color: var(--primary);
  color: #FFFFFF;
}
.btn-primary:hover {
  background-color: var(--primary-hover);
}

.btn-secondary {
  background-color: var(--bg-surface-hover);
  color: var(--text-primary);
  border-color: var(--border-strong);
}
.btn-secondary:hover {
  background-color: var(--border-subtle);
}

.btn-outline-primary {
  background-color: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-outline-primary:hover {
  background-color: var(--primary-light);
}

.btn-danger {
  background-color: var(--danger);
  color: #FFFFFF;
}
.btn-danger:hover {
  background-color: #B91C1C;
}

.btn-warning {
  background-color: var(--warning);
  color: #FFFFFF;
}
.btn-warning:hover {
  background-color: #B45309;
}

.btn-icon {
  width: 38px;
  height: 38px;
  padding: 0;
  border-radius: var(--radius-md);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-sm {
  padding: 0.35rem 0.75rem;
  font-size: 0.8rem;
  min-height: 32px;
}

.btn-lg {
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  min-height: 48px;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.65rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  line-height: 1.2;
}

.badge-success {
  background-color: var(--primary-light);
  color: var(--primary-text);
  border: 1px solid rgba(5, 150, 105, 0.2);
}

.badge-warning {
  background-color: var(--warning-light);
  color: var(--warning-text);
  border: 1px solid rgba(217, 119, 6, 0.2);
}

.badge-danger {
  background-color: var(--danger-light);
  color: var(--danger-text);
  border: 1px solid rgba(220, 38, 38, 0.2);
}

.badge-neutral {
  background-color: var(--bg-surface-hover);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
}

/* Live Alert Pulse Badge */
.pulse-badge {
  position: relative;
}
.pulse-badge::before {
  content: '';
  position: absolute;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  left: 6px;
}

/* Data Tables */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  background: var(--bg-surface);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.875rem;
}

.data-table th {
  background-color: var(--bg-surface-hover);
  color: var(--text-secondary);
  font-weight: 600;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-subtle);
  white-space: nowrap;
}

.data-table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-primary);
  vertical-align: middle;
}

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

.data-table tbody tr:hover {
  background-color: var(--bg-surface-hover);
}

.data-table .sku-code {
  font-family: monospace;
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--primary);
  background: var(--primary-light);
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius-sm);
}

/* Forms & Inputs */
.form-group {
  margin-bottom: 1rem;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
}

.form-label .required {
  color: var(--danger);
}

.form-control {
  width: 100%;
  padding: 0.6rem 0.85rem;
  font-size: 0.875rem;
  font-family: inherit;
  color: var(--text-primary);
  background-color: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  min-height: 42px;
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(5, 150, 105, 0.15);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

/* Search and Filter Toolbar */
.toolbar-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.search-input-box {
  position: relative;
  flex: 1;
  min-width: 240px;
}

.search-input-box svg {
  position: absolute;
  left: 0.85rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

.search-input-box input {
  padding-left: 2.5rem;
}

.filter-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

/* Modals */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
  padding: 1rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
}

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

.modal-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 650px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-xl);
  transform: scale(0.95);
  transition: transform var(--transition-fast);
  overflow: hidden;
}

.modal-overlay.active .modal-card {
  transform: scale(1);
}

.modal-card-lg {
  max-width: 850px;
}

.modal-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
}

.modal-body {
  padding: 1.5rem;
  overflow-y: auto;
  flex: 1;
}

.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
  background: var(--bg-surface-hover);
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  pointer-events: none;
}

.toast {
  background: var(--bg-sidebar);
  color: #FFFFFF;
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  transform: translateY(20px);
  opacity: 0;
  transition: all var(--transition-fast);
  pointer-events: auto;
  max-width: 380px;
  border-left: 4px solid var(--primary);
}

.toast.toast-success { border-left-color: #10B981; }
.toast.toast-warning { border-left-color: #F59E0B; }
.toast.toast-danger { border-left-color: #EF4444; }

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

/* Multi-Item Cart for Stock In / Out */
.cart-table-wrapper {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-top: 1rem;
  margin-bottom: 1.25rem;
}

.cart-summary-box {
  background: var(--bg-surface-hover);
  border-radius: var(--radius-md);
  padding: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.9rem;
  font-weight: 600;
}

/* Mobile Bottom Navigation */
.mobile-bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 64px;
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  z-index: 35;
  justify-content: space-around;
  align-items: center;
  padding: 0 0.5rem;
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
}

.mobile-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.2rem;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.68rem;
  font-weight: 600;
  padding: 0.35rem 0.5rem;
  border-radius: var(--radius-md);
  flex: 1;
  min-height: 48px;
  cursor: pointer;
}

.mobile-nav-item.active {
  color: var(--primary);
}

.mobile-nav-item svg {
  width: 20px;
  height: 20px;
}

/* Barcode Scanner Viewport */
.scanner-container {
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  background: #000;
  aspect-ratio: 4/3;
}

.scanner-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.scanner-reticle {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 70%;
  height: 50%;
  border: 2px dashed #10B981;
  border-radius: var(--radius-md);
  box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
}

.scanner-reticle::after {
  content: 'วางบาร์โค้ดในกรอบนี้';
  color: #FFFFFF;
  font-size: 0.75rem;
  background: rgba(0,0,0,0.6);
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
}

/* Role Selector Dialog Box */
.role-pill-selector {
  display: flex;
  gap: 0.5rem;
  background: var(--bg-surface-hover);
  padding: 0.25rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
}

.role-pill-btn {
  flex: 1;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  border: none;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  background: transparent;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.role-pill-btn.active {
  background: var(--bg-surface);
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}

/* Print Styles for Slips & Reports */
@media print {
  body * {
    visibility: hidden;
  }
  
  #printable-area, #printable-area * {
    visibility: visible;
  }
  
  #printable-area {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    margin: 0;
    padding: 20px;
    background: #FFFFFF !important;
    color: #000000 !important;
  }
  
  .no-print {
    display: none !important;
  }
}

/* ====================================================================
 * Comprehensive Mobile & Tablet Responsive Engine
 * Auto-fit perfectly for all smartphone models (iPhone, Android, Tablets)
 * ==================================================================== */

html, body {
  width: 100%;
  max-width: 100vw;
  overflow-x: hidden;
  -webkit-text-size-adjust: 100%;
}

.app-container {
  width: 100%;
  max-width: 100vw;
  overflow-x: hidden;
}

@media (max-width: 1024px) {
  .charts-grid {
    grid-template-columns: 1fr !important;
  }
}

@media (max-width: 768px) {
  .app-sidebar {
    position: fixed;
    left: -260px;
    top: 0;
    bottom: 0;
    z-index: 40;
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  }
  
  .app-sidebar.mobile-open {
    transform: translateX(260px);
    box-shadow: var(--shadow-xl);
  }
  
  .sidebar-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(2px);
    z-index: 39;
  }
  
  .sidebar-backdrop.active {
    display: block;
  }

  /* App Header Mobile Scaling */
  .app-header {
    padding: 0.5rem 0.75rem calc(0.5rem + env(safe-area-inset-top, 0px));
    gap: 0.5rem;
  }

  #sidebar-toggle-btn {
    display: inline-flex !important;
    width: 36px;
    height: 36px;
  }

  .header-left {
    gap: 0.5rem;
    min-width: 0;
    flex: 1;
  }

  .header-left > div > div:first-child {
    font-size: 0.95rem !important;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: calc(100vw - 220px);
  }
  
  .header-subtitle {
    display: none !important;
  }

  .header-right {
    gap: 0.4rem;
  }

  .sync-status-btn {
    padding: 0.3rem 0.55rem;
    font-size: 0.72rem;
    min-height: 32px;
    gap: 0.35rem;
  }

  #theme-toggle-btn {
    width: 32px;
    height: 32px;
  }

  #header-logout-btn {
    padding: 0.3rem 0.5rem;
    font-size: 0.75rem;
    min-height: 32px;
  }

  /* Page Body Safe-Area Fitting */
  .page-body {
    padding: 0.75rem 0.75rem calc(72px + env(safe-area-inset-bottom, 16px)) !important;
    width: 100% !important;
    max-width: 100vw !important;
    box-sizing: border-box;
    overflow-x: hidden;
  }

  /* KPI Stat Cards Grid */
  .kpi-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 0.5rem !important;
    margin-bottom: 1rem !important;
  }

  .kpi-card {
    padding: 0.75rem 0.85rem !important;
    border-radius: var(--radius-md) !important;
  }

  .kpi-value {
    font-size: 1.3rem !important;
  }

  .kpi-title {
    font-size: 0.72rem !important;
  }

  .kpi-icon-box {
    width: 34px !important;
    height: 34px !important;
  }

  /* Quick Action Banner */
  .quick-action-banner {
    padding: 1rem !important;
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: 0.75rem !important;
  }

  .quick-action-btns {
    width: 100% !important;
  }

  .quick-action-btns .btn {
    flex: 1 !important;
  }

  /* Toolbar Search & Category Filters */
  .toolbar-container {
    flex-direction: column !important;
    gap: 0.5rem !important;
    padding: 0.75rem !important;
  }

  .search-input-box {
    width: 100% !important;
    max-width: 100% !important;
  }

  .filter-actions {
    width: 100% !important;
    display: grid !important;
    grid-template-columns: 1fr 1fr !important;
    gap: 0.5rem !important;
  }

  .filter-actions select {
    width: 100% !important;
    min-width: 0 !important;
    font-size: 0.8rem !important;
  }

  /* Two-column grids to Single-column on mobile */
  div[style*="grid-template-columns: 1.2fr 1fr"],
  div[style*="grid-template-columns: 1fr 1.2fr"],
  div[style*="grid-template-columns: 1fr 1fr"] {
    grid-template-columns: 1fr !important;
  }

  /* Stock In / Out 2-Column Split into 1-Column */
  .dashboard-card {
    padding: 1rem !important;
    margin-bottom: 0.75rem;
  }

  .form-row {
    grid-template-columns: 1fr !important;
    gap: 0.75rem !important;
  }

  .form-control {
    font-size: 0.9rem !important;
    min-height: 42px !important;
  }

  /* Buttons on Mobile */
  .btn-lg {
    padding: 0.65rem 1rem !important;
    font-size: 0.95rem !important;
    min-height: 44px !important;
  }

  /* Table Responsive Smooth Touch Scrolling */
  .table-responsive {
    border-radius: var(--radius-md) !important;
    -webkit-overflow-scrolling: touch;
  }

  .data-table th, .data-table td {
    padding: 0.6rem 0.75rem !important;
    font-size: 0.8rem !important;
  }

  /* Mobile Bottom Navigation Bar */
  .mobile-bottom-nav {
    display: flex;
    height: calc(56px + env(safe-area-inset-bottom, 0px));
    padding-bottom: env(safe-area-inset-bottom, 0px);
    background: var(--bg-surface);
    border-top: 1px solid var(--border-subtle);
    box-shadow: 0 -3px 12px rgba(0, 0, 0, 0.08);
  }

  .mobile-nav-item {
    font-size: 0.65rem !important;
    padding: 0.25rem 0.2rem !important;
  }

  .mobile-nav-item svg {
    width: 18px !important;
    height: 18px !important;
  }

  /* Modals on Mobile */
  .modal-dialog {
    width: 94% !important;
    max-width: 94% !important;
    margin: 12px auto !important;
    max-height: calc(100vh - 24px) !important;
    border-radius: var(--radius-lg) !important;
  }

  .modal-header {
    padding: 1rem 1.25rem !important;
  }

  .modal-body {
    padding: 1rem !important;
  }

  .modal-footer {
    padding: 0.75rem 1rem !important;
    flex-wrap: wrap;
  }

  .modal-footer .btn {
    flex: 1;
  }

  /* Toast Alerts on Mobile */
  .toast-container {
    left: 0.75rem !important;
    right: 0.75rem !important;
    bottom: calc(64px + env(safe-area-inset-bottom, 12px)) !important;
  }

  .toast {
    max-width: 100% !important;
    font-size: 0.82rem !important;
  }

  .hide-mobile {
    display: none !important;
  }
}

/* Ultra-compact screens (iPhone SE, small Androids < 380px) */
@media (max-width: 380px) {
  .kpi-grid {
    grid-template-columns: 1fr !important;
  }

  .filter-actions {
    grid-template-columns: 1fr !important;
  }

  .quick-user-chip {
    padding: 0.5rem 0.65rem !important;
  }
}

/* ====================================================================
 * Login Screen & Authentication UI Styles
 * ==================================================================== */

.login-screen-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-primary);
  background-image: radial-gradient(circle at 50% 20%, rgba(5, 150, 105, 0.08), transparent 70%),
                    radial-gradient(circle at 80% 80%, rgba(37, 99, 235, 0.05), transparent 60%);
  padding: 1.5rem;
  overflow-y: auto;
}

[data-theme="dark"] .login-screen-overlay {
  background-image: radial-gradient(circle at 50% 20%, rgba(16, 185, 129, 0.12), transparent 70%),
                    radial-gradient(circle at 80% 80%, rgba(59, 130, 246, 0.08), transparent 60%);
}

.login-container {
  width: 100%;
  max-width: 450px;
  margin: auto;
  animation: loginFadeIn 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes loginFadeIn {
  from {
    opacity: 0;
    transform: scale(0.96) translateY(10px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.login-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-xl);
  padding: 2.25rem 2rem;
  box-shadow: var(--shadow-xl);
  text-align: center;
}

.login-header {
  margin-bottom: 1.75rem;
}

.login-brand-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, #059669 0%, #047857 100%);
  color: #FFFFFF;
  border-radius: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 16px -4px rgba(5, 150, 105, 0.35);
  margin-bottom: 1rem;
}

.login-title {
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 0.25rem;
  letter-spacing: -0.01em;
}

.login-subtitle {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 0.5rem;
}

.login-description {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0;
}

.login-input-box {
  position: relative;
  display: flex;
  align-items: center;
}

.login-input-icon {
  position: absolute;
  left: 14px;
  color: var(--text-muted);
  pointer-events: none;
  transition: color var(--transition-fast);
}

.login-input {
  padding-left: 42px !important;
  font-size: 0.95rem !important;
  height: 46px;
  border-radius: var(--radius-md) !important;
}

.login-input:focus + .login-input-icon,
.login-input-box:focus-within .login-input-icon {
  color: var(--primary);
}

.login-btn {
  height: 46px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 12px rgba(5, 150, 105, 0.25);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

.login-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(5, 150, 105, 0.35);
}

.login-btn:active {
  transform: translateY(0);
}

.login-divider {
  display: flex;
  align-items: center;
  text-align: center;
  margin: 1.5rem 0 1rem;
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 500;
}

.login-divider::before,
.login-divider::after {
  content: '';
  flex: 1;
  border-bottom: 1px solid var(--border-subtle);
}

.login-divider span {
  padding: 0 0.75rem;
}

.login-quick-users {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.quick-user-chip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 0.85rem;
  background: var(--bg-surface-hover);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  cursor: pointer;
  text-align: left;
  transition: background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.quick-user-chip:hover {
  background: var(--primary-light);
  border-color: var(--primary);
  transform: translateX(2px);
}

.quick-user-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.quick-user-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  object-fit: cover;
  border: 1.5px solid var(--border-strong);
}

.quick-user-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.2;
}

.quick-user-email {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: monospace;
}

.login-alert {
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  line-height: 1.4;
  margin-bottom: 1.25rem;
  text-align: left;
  animation: alertSlideDown 0.25s ease;
}

@keyframes alertSlideDown {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.login-alert.danger {
  background: var(--danger-light);
  color: var(--danger-text);
  border: 1px solid rgba(220, 38, 38, 0.2);
}

.login-alert.success {
  background: var(--primary-light);
  color: var(--primary-text);
  border: 1px solid rgba(5, 150, 105, 0.2);
}

.login-footer {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  color: var(--text-muted);
}