/* ==========================================================================
   UNIFORM STOCK MANAGEMENT SYSTEM - DESIGN SYSTEM & STYLES
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Cairo:wght@400;600;700;800&family=Outfit:wght@300;400;500;600;700;800&family=Plus+Jakarta+Sans:wght@400;500;600;700&family=JetBrains+Mono:wght@400;600&display=swap');

:root {
  /* Color Palette */
  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --primary-light: #eff6ff;
  --primary-border: #bfdbfe;

  --accent: #6366f1;
  --accent-light: #eef2ff;

  --purple: #8b5cf6;
  --purple-light: #f5f3ff;
  --purple-border: #ddd6fe;

  --success: #10b981;
  --success-light: #ecfdf5;
  --success-border: #a7f3d0;

  --warning: #f59e0b;
  --warning-light: #fffbeb;
  --warning-border: #fde68a;

  --danger: #ef4444;
  --danger-light: #fef2f2;
  --danger-border: #fecaca;

  /* Neutrals */
  --bg-body: #f8fafc;
  --bg-surface: #ffffff;
  --bg-subtle: #f1f5f9;
  --border: #e2e8f0;
  --border-focus: #94a3b8;

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --text-white: #ffffff;

  /* Typography */
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Radius & Shadows */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 22px;
  --radius-full: 9999px;

  --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, 0.04);
  --shadow-glass: 0 8px 32px 0 rgba(31, 38, 135, 0.07);

  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-body);
  color: var(--text-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.25;
}

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

a:hover {
  color: var(--primary-hover);
}

/* ==========================================================================
   NAVIGATION BAR
   ========================================================================== */
.navbar {
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  color: white;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  box-shadow: 0 4px 10px rgba(59, 130, 246, 0.35);
}

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

.brand-title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 6px;
}

.brand-badge {
  font-size: 0.65rem;
  padding: 2px 6px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: var(--radius-full);
  font-weight: 700;
  text-transform: uppercase;
}

.brand-subtitle {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 600;
  transition: var(--transition);
}

.nav-link:hover {
  color: var(--primary);
  background: var(--primary-light);
}

.nav-link.active {
  color: var(--primary);
  background: var(--primary-light);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* ==========================================================================
   LAYOUT & CONTAINERS
   ========================================================================== */
.main-wrapper {
  max-width: 1400px;
  margin: 0 auto;
  padding: 28px 24px;
  width: 100%;
  flex: 1;
}

.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 28px;
  flex-wrap: wrap;
  gap: 16px;
}

.page-title {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.page-description {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-top: 4px;
}

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

/* ==========================================================================
   BUTTONS & BADGES
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  font-size: 0.88rem;
  font-weight: 600;
  font-family: var(--font-body);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  color: white;
  box-shadow: 0 2px 6px rgba(37, 99, 235, 0.28);
}
.btn-primary:hover {
  background: #1d4ed8;
  color: white;
  transform: translateY(-1px);
  box-shadow: 0 4px 10px rgba(37, 99, 235, 0.35);
}

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

.btn-purple {
  background: linear-gradient(135deg, #7c3aed, #6d28d9);
  color: white;
  box-shadow: 0 2px 6px rgba(124, 58, 237, 0.28);
}
.btn-purple:hover {
  background: #6d28d9;
  color: white;
  transform: translateY(-1px);
  box-shadow: 0 4px 10px rgba(124, 58, 237, 0.35);
}

.btn-success {
  background: linear-gradient(135deg, #10b981, #059669);
  color: white;
}
.btn-success:hover {
  background: #059669;
  color: white;
}

.btn-danger {
  background: var(--danger-light);
  color: var(--danger);
  border-color: var(--danger-border);
}
.btn-danger:hover {
  background: var(--danger);
  color: white;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.8rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 12px 24px;
  font-size: 1rem;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: capitalize;
  letter-spacing: 0.02em;
}

.badge-primary { background: var(--primary-light); color: var(--primary); border: 1px solid var(--primary-border); }
.badge-success { background: var(--success-light); color: var(--success); border: 1px solid var(--success-border); }
.badge-warning { background: var(--warning-light); color: #b45309; border: 1px solid var(--warning-border); }
.badge-danger  { background: var(--danger-light); color: var(--danger); border: 1px solid var(--danger-border); }
.badge-purple  { background: var(--purple-light); color: var(--purple); border: 1px solid var(--purple-border); }
.badge-secondary { background: var(--bg-subtle); color: var(--text-secondary); border: 1px solid var(--border); }
.badge-info    { background: #e0f2fe; color: #0284c7; border: 1px solid #bae6fd; }

/* Size tag pill */
.tag-size {
  display: inline-block;
  padding: 3px 8px;
  background: #f1f5f9;
  color: #0f172a;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-family: var(--font-heading);
  font-size: 0.82rem;
  border: 1px solid #cbd5e1;
}

.tag-barcode {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: #475569;
  background: #f8fafc;
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px dashed #cbd5e1;
}

/* ==========================================================================
   METRIC / STAT CARDS
   ========================================================================== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-bottom: 28px;
}

.stat-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
}

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

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
}

.stat-card.blue::before { background: linear-gradient(90deg, #3b82f6, #60a5fa); }
.stat-card.emerald::before { background: linear-gradient(90deg, #10b981, #34d399); }
.stat-card.purple::before { background: linear-gradient(90deg, #8b5cf6, #a78bfa); }
.stat-card.amber::before { background: linear-gradient(90deg, #f59e0b, #fbbf24); }

.stat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.stat-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.stat-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.stat-icon.blue { background: var(--primary-light); color: var(--primary); }
.stat-icon.emerald { background: var(--success-light); color: var(--success); }
.stat-icon.purple { background: var(--purple-light); color: var(--purple); }
.stat-icon.amber { background: var(--warning-light); color: var(--warning); }

.stat-value {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.1;
  margin-bottom: 6px;
}

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

/* ==========================================================================
   CARDS & CONTAINERS
   ========================================================================== */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  margin-bottom: 24px;
}

.card-header {
  padding: 18px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-surface);
  flex-wrap: wrap;
  gap: 12px;
}

.card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-body {
  padding: 24px;
}

.card-footer {
  padding: 14px 24px;
  background: var(--bg-subtle);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.data-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 0.88rem;
}

.data-table th {
  background: var(--bg-subtle);
  color: var(--text-secondary);
  font-weight: 700;
  text-align: left;
  padding: 12px 18px;
  border-bottom: 1px solid var(--border);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.data-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  color: var(--text-primary);
  vertical-align: middle;
}

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

.data-table tbody tr {
  transition: var(--transition);
}

.data-table tbody tr:hover {
  background-color: #f8fafc;
}

/* Uniform Item Cell */
.product-cell {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.product-name {
  font-weight: 700;
  color: var(--text-primary);
  font-size: 0.92rem;
}

.product-name-bilingual {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.product-name-en {
  font-weight: 700;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.product-name-ar {
  font-family: 'Cairo', 'Segoe UI', Tahoma, sans-serif;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--primary);
  direction: rtl;
  display: inline-block;
  text-align: left;
}

.tag-name-ar {
  font-family: 'Cairo', 'Segoe UI', Tahoma, sans-serif;
  font-weight: 700;
  font-size: 0.85rem;
  color: #2563eb;
  direction: rtl;
  margin-top: 3px;
}

.product-meta {
  font-size: 0.78rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 2px;
}

/* ==========================================================================
   FORMS & INPUTS
   ========================================================================== */
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.form-group {
  margin-bottom: 18px;
}

.form-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-secondary);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.form-label.required::after {
  content: ' *';
  color: var(--danger);
}

.form-control, .form-select {
  width: 100%;
  padding: 10px 14px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--text-primary);
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: var(--transition);
  outline: none;
}

.form-control:focus, .form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

textarea.form-control {
  min-height: 90px;
  resize: vertical;
}

.input-group {
  display: flex;
  align-items: stretch;
}

.input-group .form-control {
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
}

.input-group-btn {
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
}

/* ==========================================================================
   TABS & FILTER BAR
   ========================================================================== */
.filter-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.search-input-wrapper {
  position: relative;
  min-width: 280px;
  flex: 1;
}

.search-input-wrapper input {
  padding-left: 38px;
}

.search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

.tab-nav {
  display: flex;
  gap: 6px;
  background: var(--bg-subtle);
  padding: 4px;
  border-radius: var(--radius-md);
  list-style: none;
  width: fit-content;
}

.tab-item {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
}

.tab-item:hover {
  color: var(--text-primary);
}

.tab-item.active {
  background: var(--bg-surface);
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}

/* ==========================================================================
   ALERTS & FLASH MESSAGES
   ========================================================================== */
.alert {
  padding: 14px 20px;
  border-radius: var(--radius-md);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.9rem;
  font-weight: 500;
  box-shadow: var(--shadow-sm);
  animation: slideInDown 0.3s ease-out;
}

.alert-success { background: #ecfdf5; color: #065f46; border: 1px solid #a7f3d0; }
.alert-danger  { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }
.alert-warning { background: #fffbeb; color: #92400e; border: 1px solid #fde68a; }
.alert-info    { background: #eff6ff; color: #1e40af; border: 1px solid #bfdbfe; }

@keyframes slideInDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   MODAL
   ========================================================================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}

.modal-overlay.active {
  display: flex;
}

.modal-dialog {
  background: var(--bg-surface);
  border-radius: var(--radius-xl);
  max-width: 650px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--border);
  animation: modalScale 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-dialog.modal-lg {
  max-width: 900px;
}

@keyframes modalScale {
  from { opacity: 0; transform: scale(0.96); }
  to { opacity: 1; transform: scale(1); }
}

.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 1.25rem;
  font-weight: 700;
}

.modal-close {
  background: transparent;
  border: none;
  font-size: 22px;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  line-height: 1;
}

.modal-close:hover {
  color: var(--text-primary);
}

.modal-body {
  padding: 24px;
}

.modal-footer {
  padding: 16px 24px;
  background: var(--bg-subtle);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
}

/* ==========================================================================
   BARCODE PRINT STYLES & TAGS
   ========================================================================== */
.barcode-sheet {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
  margin-top: 20px;
}

.uniform-tag-card {
  background: white;
  border: 2px dashed #94a3b8;
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  page-break-inside: avoid;
}

.tag-header {
  width: 100%;
  border-bottom: 1px solid #e2e8f0;
  padding-bottom: 6px;
  margin-bottom: 8px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.tag-brand {
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  color: #1e293b;
  text-transform: uppercase;
}

.tag-item-name {
  font-size: 0.9rem;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 4px;
  line-height: 1.2;
}

.tag-size-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin: 6px 0;
}

.tag-badge-size {
  background: #0f172a;
  color: white;
  font-weight: 800;
  padding: 4px 12px;
  border-radius: 6px;
  font-size: 0.95rem;
  letter-spacing: 0.03em;
}

.tag-price {
  font-size: 1.25rem;
  font-weight: 800;
  color: #2563eb;
}

.tag-detail-text {
  font-size: 0.72rem;
  color: #64748b;
  margin-bottom: 8px;
}

.barcode-render {
  margin: 4px 0;
  max-width: 100%;
}

.barcode-digits {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: #334155;
  font-weight: 600;
}

/* ==========================================================================
   PRINT MEDIA RULES
   ========================================================================== */
@media print {
  body {
    background: white !important;
  }
  .navbar, .header-actions, .filter-bar, .no-print, .btn, .alert {
    display: none !important;
  }
  .main-wrapper {
    padding: 0 !important;
    max-width: 100% !important;
  }
  .barcode-sheet {
    grid-template-columns: repeat(3, 1fr) !important;
    gap: 12px !important;
  }
  .uniform-tag-card {
    border: 1px solid #000 !important;
    box-shadow: none !important;
  }
  .card {
    border: none !important;
    box-shadow: none !important;
  }
}

/* Responsive */
@media (max-width: 768px) {
  .nav-container {
    height: auto;
    padding: 12px 16px;
    flex-wrap: wrap;
    gap: 12px;
  }
  .nav-links {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 6px;
  }
  .page-header {
    flex-direction: column;
    align-items: flex-start;
  }
  .stats-grid {
    grid-template-columns: 1fr;
  }
}