@import url('https://fonts.googleapis.com/css2?family=Cairo:wght@400;500;600;700;800;900&family=Inter:wght@400;500;600;700;800&display=swap');

:root {
  --primary: #008744;
  --primary-hover: #006e37;
  --primary-gradient: linear-gradient(135deg, #008744 0%, #005a2e 100%);
  --primary-light: #e8f5e9;
  --primary-glow: rgba(0, 135, 68, 0.25);
  --danger: #d21034;
  --danger-light: #fef2f2;
  --warning: #f59e0b;
  --warning-light: #fffbeb;
  --info: #0284c7;
  --info-light: #f0f9ff;
  --bg-main: #f8fafc;
  --sidebar-bg: #0f172a;
  --sidebar-text: #e2e8f0;
  --sidebar-hover: #1e293b;
  --card-bg: #ffffff;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 25px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] {
  --bg-main: #090d16;
  --sidebar-bg: #070b14;
  --card-bg: #111827;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --border: #1f293d;
  --primary-light: rgba(0, 135, 68, 0.18);
  --warning-light: rgba(245, 158, 11, 0.15);
  --info-light: rgba(2, 132, 199, 0.15);
  --danger-light: rgba(210, 16, 52, 0.18);
}

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

body {
  font-family: 'Cairo', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--bg-main);
  color: var(--text-main);
  height: 100vh;
  display: flex;
  overflow: hidden;
  user-select: none;
  -webkit-font-smoothing: antialiased;
}

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

/* Sidebar */
.sidebar {
  width: 265px;
  background: var(--sidebar-bg);
  color: var(--sidebar-text);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-inline-end: 1px solid rgba(255, 255, 255, 0.08);
  flex-shrink: 0;
  z-index: 20;
  box-shadow: 2px 0 16px rgba(0,0,0,0.2);
}

.sidebar-header {
  padding: 1.25rem 1.15rem 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.brand-title {
  font-size: 1.05rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.3px;
}

.brand-subtitle {
  font-size: 0.72rem;
  color: #94a3b8;
  margin-top: 1px;
}

.nav-links {
  list-style: none;
  padding: 0.75rem 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.nav-btn {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
  padding: 0.7rem 0.85rem;
  background: transparent;
  color: #cbd5e1;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 700;
  cursor: pointer;
  text-align: inherit;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.nav-btn:hover {
  background: var(--sidebar-hover);
  color: #fff;
  transform: translateX(-2px);
}

[dir="ltr"] .nav-btn:hover {
  transform: translateX(2px);
}

.nav-btn.active {
  background: var(--primary-gradient);
  color: #fff;
  box-shadow: 0 4px 14px var(--primary-glow);
}

.nav-badge {
  margin-inline-start: auto;
  font-size: 0.7rem;
  padding: 1px 7px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
  font-weight: 800;
}

.sidebar-footer {
  padding: 0.85rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

/* Main Workspace */
.workspace {
  flex: 1;
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
  background: var(--bg-main);
}

/* Topbar */
.topbar {
  height: 64px;
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  flex-shrink: 0;
  z-index: 10;
  backdrop-filter: blur(8px);
}

.page-title {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.3px;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.lang-selector {
  display: flex;
  background: var(--bg-main);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 3px;
}

.lang-btn {
  background: transparent;
  border: none;
  padding: 4px 12px;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
  color: var(--text-muted);
  transition: all 0.2s ease;
}

.lang-btn.active {
  background: var(--card-bg);
  color: var(--primary);
  box-shadow: var(--shadow-sm);
  font-weight: 800;
}

/* Content Area */
.content-area {
  flex: 1;
  overflow-y: auto;
  padding: 1.5rem;
}

.tab-pane {
  display: none;
  animation: fadeInPane 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.tab-pane.active {
  display: block;
}

@keyframes fadeInPane {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Grid Layouts */
.grid-cols-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.grid-cols-5 {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.stat-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.15rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

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

.stat-icon {
  width: 50px;
  height: 50px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.45rem;
  flex-shrink: 0;
}

.stat-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 600;
}

.stat-val {
  font-size: 1.25rem;
  font-weight: 900;
  margin-top: 2px;
}

/* Charts Section */
.charts-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 1.25rem;
  margin-bottom: 1.25rem;
}

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

.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

/* Buttons & Inputs */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.55rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  font-family: inherit;
}

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

.btn-primary:hover {
  background: var(--primary-hover);
  box-shadow: 0 4px 12px var(--primary-glow);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  border-color: var(--border);
  color: var(--text-main);
}

.btn-outline:hover {
  background: var(--bg-main);
  border-color: var(--text-muted);
}

.btn-danger {
  background: var(--danger);
  color: #fff;
}

.btn-danger:hover {
  background: #b90e2d;
  box-shadow: 0 4px 10px rgba(210, 16, 52, 0.3);
}

.btn-warning {
  background: var(--warning);
  color: #fff;
}

.btn-warning:hover {
  background: #d97706;
}

.btn-info {
  background: var(--info);
  color: #fff;
}

.btn-sm {
  padding: 0.35rem 0.7rem;
  font-size: 0.78rem;
}

.btn-lg {
  padding: 0.85rem 1.5rem;
  font-size: 1.05rem;
  font-weight: 800;
}

.search-input {
  background: var(--bg-main);
  border: 1px solid var(--border);
  color: var(--text-main);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.9rem;
  font-size: 0.85rem;
  font-family: inherit;
  outline: none;
  transition: all 0.2s ease;
}

.search-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
  background: var(--card-bg);
}

/* Data Tables */
.data-table-container {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

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

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  text-align: inherit;
}

.data-table th {
  background: var(--bg-main);
  color: var(--text-muted);
  font-weight: 700;
  padding: 0.85rem 1rem;
  font-size: 0.78rem;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.data-table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border);
}

.data-table tr:hover {
  background: var(--primary-light);
}

/* POS Screen */
.pos-container {
  display: grid;
  grid-template-columns: 1fr 410px;
  gap: 1.25rem;
  height: calc(100vh - 110px);
}

.pos-products-panel {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  overflow: hidden;
}

.pos-categories {
  display: flex;
  gap: 0.4rem;
  overflow-x: auto;
  padding-bottom: 4px;
}

.cat-btn {
  background: var(--card-bg);
  border: 1px solid var(--border);
  color: var(--text-main);
  padding: 0.45rem 0.95rem;
  border-radius: 8px;
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s ease;
}

.cat-btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: 0 2px 8px var(--primary-glow);
}

.pos-grid {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(175px, 1fr));
  gap: 0.85rem;
  overflow-y: auto;
  padding-right: 2px;
}

.pos-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.9rem;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.pos-card:hover {
  border-color: var(--primary);
  transform: translateY(-3px);
  box-shadow: 0 6px 16px var(--primary-glow);
}

.pos-card-title {
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.3;
}

.pos-card-price {
  font-size: 1.05rem;
  font-weight: 900;
  color: var(--primary);
}

.pos-card-stock {
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* POS Cart Panel */
.pos-cart-panel {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.cart-items {
  flex: 1;
  overflow-y: auto;
  padding: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.cart-item-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 0.75rem;
  background: var(--bg-main);
  border-radius: 8px;
  font-size: 0.85rem;
  border: 1px solid var(--border);
}

.cart-qty-btn {
  background: var(--card-bg);
  border: 1px solid var(--border);
  color: var(--text-main);
  width: 26px;
  height: 26px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-weight: 800;
  transition: all 0.15s ease;
}

.cart-qty-btn:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.cart-totals {
  border-top: 1px solid var(--border);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  background: var(--bg-main);
}

.cart-discount-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--card-bg);
  padding: 6px 10px;
  border-radius: 6px;
  border: 1px solid var(--border);
  font-size: 0.8rem;
  margin-top: 2px;
}

.cart-grand-total {
  display: flex;
  justify-content: space-between;
  font-size: 1.35rem;
  font-weight: 900;
  color: var(--primary);
  border-top: 2px dashed var(--border);
  padding-top: 0.6rem;
  margin-top: 0.35rem;
}

/* Quick Banknote Buttons */
.banknote-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.4rem;
  margin: 0.5rem 0;
}

.banknote-btn {
  background: var(--card-bg);
  border: 1px solid var(--border);
  padding: 8px;
  border-radius: 8px;
  font-weight: 800;
  font-size: 0.82rem;
  cursor: pointer;
  color: var(--text-main);
  transition: all 0.2s ease;
  font-family: inherit;
}

.banknote-btn:hover {
  background: var(--primary-light);
  border-color: var(--primary);
  color: var(--primary);
  transform: scale(1.02);
}

/* Modals */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(6px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 1rem;
}

.modal-overlay.active {
  display: flex;
  animation: modalFadeIn 0.2s ease;
}

@keyframes modalFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal-dialog {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  width: 95%;
  max-width: 520px;
  box-shadow: var(--shadow-lg);
  max-height: 90vh;
  overflow-y: auto;
  animation: modalZoomIn 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes modalZoomIn {
  from { transform: scale(0.95); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

/* Camera Barcode Scanner Viewport */
.scanner-viewport {
  position: relative;
  width: 100%;
  height: 240px;
  background: #000;
  border-radius: var(--radius-sm);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--border);
}

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

.scanner-crosshair {
  position: absolute;
  width: 200px;
  height: 120px;
  border: 2px solid rgba(0, 135, 68, 0.7);
  box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.4);
  border-radius: 8px;
  pointer-events: none;
}

.scan-laser {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: #22c55e;
  box-shadow: 0 0 8px #22c55e, 0 0 16px #22c55e;
  animation: laserSweep 2s infinite ease-in-out;
}

@keyframes laserSweep {
  0% { top: 10%; opacity: 0.2; }
  50% { top: 90%; opacity: 1; }
  100% { top: 10%; opacity: 0.2; }
}

/* Thermal Ticket (80mm) */
.thermal-ticket {
  width: 80mm;
  padding: 4mm;
  background: #fff;
  color: #000;
  font-family: 'Courier New', Courier, monospace;
  font-size: 8.5pt;
  line-height: 1.25;
  margin: 0 auto;
}

.ticket-header {
  text-align: center;
  margin-bottom: 3mm;
}

.ticket-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 8pt;
  margin-bottom: 3mm;
}

.ticket-table th, .ticket-table td {
  padding: 2px 0;
  border-bottom: 1px dashed #777;
}

.ticket-totals {
  border-top: 1px solid #000;
  padding-top: 2mm;
}

/* Category Badges for Expenses */
.cat-badge {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 700;
}
.cat-badge-loyer { background: #e0f2fe; color: #0369a1; }
.cat-badge-sonelgaz { background: #fef3c7; color: #b45309; }
.cat-badge-salaires { background: #dcfce7; color: #15803d; }
.cat-badge-transport { background: #ede9fe; color: #6d28d9; }
.cat-badge-fournitures { background: #fae8ff; color: #a21caf; }
.cat-badge-autre { background: #f1f5f9; color: #475569; }

/* Cash Variance Status */
.variance-card {
  padding: 0.85rem;
  border-radius: var(--radius-sm);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 800;
}
.variance-exact {
  background: #dcfce7;
  color: #15803d;
  border: 1px solid #86efac;
}
.variance-surplus {
  background: #fef3c7;
  color: #b45309;
  border: 1px solid #fde68a;
}
.variance-deficit {
  background: #fee2e2;
  color: #b91c1c;
  border: 1px solid #fca5a5;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 24px;
  left: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 250;
  pointer-events: none;
}

.toast {
  background: #0f172a;
  color: #fff;
  padding: 12px 18px;
  border-radius: 10px;
  font-size: 0.88rem;
  font-weight: 700;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 10px;
  pointer-events: auto;
  animation: slideInToast 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border-inline-start: 4px solid var(--primary);
}

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

/* Keyboard Shortcuts Helper Bar */
.shortcuts-bar {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  background: rgba(15, 23, 42, 0.05);
  border-radius: 8px;
  padding: 4px 10px;
  font-size: 0.72rem;
  color: var(--text-muted);
}

[data-theme="dark"] .shortcuts-bar {
  background: rgba(255, 255, 255, 0.05);
}

.shortcut-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.kbd {
  background: var(--card-bg);
  border: 1px solid var(--border);
  padding: 1px 6px;
  border-radius: 4px;
  font-family: monospace;
  font-weight: 800;
  font-size: 0.72rem;
}

/* Print Rules */
@media print {
  .no-print, .sidebar, .topbar, .shortcuts-bar, .modal-overlay:not(.active) {
    display: none !important;
  }
  body, .app-shell, .workspace, .content-area {
    margin: 0 !important;
    padding: 0 !important;
    background: #fff !important;
    color: #000 !important;
    overflow: visible !important;
    height: auto !important;
  }
  .modal-overlay.active {
    position: static !important;
    background: none !important;
    padding: 0 !important;
    display: block !important;
  }
  .modal-dialog {
    box-shadow: none !important;
    border: none !important;
    width: 100% !important;
    max-width: none !important;
    padding: 0 !important;
  }
  .tab-pane {
    display: none !important;
  }
  .tab-pane.print-target {
    display: block !important;
  }
}

/* ============================================================
   A4 Invoice Full-Page Printing
   app.js adds .print-target to #tab-invoices right before
   window.print() — only the document sheet reaches the paper.
   ============================================================ */
@media print {
  #tab-invoices.print-target > div {
    display: block !important;
    grid-template-columns: none !important;
  }

  #a4SheetColumn {
    background: #fff !important;
    padding: 0 !important;
    border-radius: 0 !important;
    overflow: visible !important;
  }

  #a4PrintSheet {
    max-width: 100% !important;
    width: 100% !important;
    min-height: 0 !important;
    box-shadow: none !important;
    border-radius: 0 !important;
    font-size: 10.5pt !important;
  }
}