/* IMEI Comparison System Styles */
@import url('https://fonts.googleapis.com/css2?family=Cairo:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  --font-sans: 'Cairo', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', Consolas, Monaco, monospace;
  
  /* Light Theme */
  --bg-main: #f8fafc;
  --bg-card: #ffffff;
  --bg-subtle: #f1f5f9;
  --bg-accent: #e2e8f0;
  
  --border-color: #e2e8f0;
  --border-focus: #3b82f6;
  
  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-subtle: #94a3b8;
  
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  
  --success: #10b981;
  --success-light: #ecfdf5;
  --success-border: #a7f3d0;
  
  --danger: #ef4444;
  --danger-light: #fef2f2;
  --danger-border: #fecaca;
  
  --warning: #f59e0b;
  --warning-light: #fffbeb;
  --warning-border: #fde68a;
  
  --purple: #8b5cf6;
  --purple-light: #f5f3ff;
  
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.07), 0 2px 4px -2px rgb(0 0 0 / 0.05);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.08), 0 4px 6px -4px rgb(0 0 0 / 0.04);
  --radius: 12px;
}

[data-theme="dark"] {
  --bg-main: #0b1120;
  --bg-card: #151e32;
  --bg-subtle: #1e293b;
  --bg-accent: #334155;
  
  --border-color: #26334d;
  --border-focus: #60a5fa;
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-subtle: #64748b;
  
  --primary: #3b82f6;
  --primary-hover: #60a5fa;
  --primary-light: #1e293b;
  
  --success: #10b981;
  --success-light: #064e3b33;
  --success-border: #065f46;
  
  --danger: #f87171;
  --danger-light: #7f1d1d33;
  --danger-border: #991b1b;
  
  --warning: #fbbf24;
  --warning-light: #78350f33;
  --warning-border: #92400e;
  
  --purple: #a78bfa;
  --purple-light: #3b076433;
  
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.5);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.4);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.5);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.5;
  min-height: 100vh;
  padding-bottom: 60px;
}

/* RTL / LTR Helpers */
[dir="rtl"] {
  direction: rtl;
  text-align: right;
}
[dir="ltr"] {
  direction: ltr;
  text-align: left;
}

.mono {
  font-family: var(--font-mono);
  letter-spacing: -0.5px;
}

/* Container */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header & Navbar */
.navbar {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
}

.nav-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 4px 10px rgba(37, 99, 235, 0.25);
}

.brand-title {
  font-size: 1.2rem;
  font-weight: 800;
  display: block;
}

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

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 16px;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.2s;
  user-select: none;
}

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

.btn-primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.btn-primary:hover {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
}

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

.btn-danger {
  background: var(--danger);
  color: #fff;
  border-color: var(--danger);
}
.btn-danger:hover {
  background: #dc2626;
}

.btn-icon {
  padding: 8px;
  border-radius: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
}
.btn-icon:hover {
  color: var(--text-main);
  background: var(--bg-subtle);
}

/* Dual Upload Section */
.upload-section {
  margin: 24px 0 16px;
}

.upload-grid-dual {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

@media (min-width: 860px) {
  .upload-grid-dual {
    grid-template-columns: 1fr 1fr;
  }
}

.upload-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.upload-card-input {
  border-top: 4px solid var(--primary);
}

.upload-card-output {
  border-top: 4px solid var(--warning);
}

.upload-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.upload-header-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.upload-badge-num {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.95rem;
}

.upload-card-input .upload-badge-num {
  background: var(--primary-light);
  color: var(--primary);
}

.upload-card-output .upload-badge-num {
  background: var(--warning-light);
  color: var(--warning);
}

.upload-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 2px;
}

.upload-card p {
  color: var(--text-muted);
  font-size: 0.8rem;
}

/* Dropzone */
.dropzone {
  background: var(--bg-subtle);
  border: 2px dashed var(--border-color);
  border-radius: 10px;
  padding: 26px 16px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s ease;
}

.dropzone:hover, .dropzone.dragover {
  border-color: var(--primary);
  background-color: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.dropzone-output:hover, .dropzone-output.dragover {
  border-color: var(--warning);
  background-color: var(--warning-light);
}

.dropzone-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 10px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.dropzone-input .dropzone-icon {
  background: var(--primary-light);
  color: var(--primary);
}

.dropzone-output .dropzone-icon {
  background: var(--warning-light);
  color: var(--warning);
}

.dropzone h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.dropzone-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.dropzone-tools {
  margin-top: 12px;
  display: flex;
  justify-content: center;
  gap: 8px;
}

/* File Loaded Card */
.upload-file-info {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 16px;
}

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

.file-info-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 0.95rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 12px;
}

.file-stat-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 8px 10px;
  text-align: center;
}

.file-stat-val {
  font-size: 1.1rem;
  font-weight: 800;
  font-family: var(--font-mono);
}

.file-stat-lbl {
  font-size: 0.72rem;
  color: var(--text-muted);
}

.file-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

/* Reconciliation Banner */
.reconciliation-banner {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 16px 22px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.recon-formula {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 1rem;
  font-weight: 700;
}

.recon-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.9rem;
}

.recon-pill-input {
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid #bfdbfe;
}

.recon-pill-output {
  background: var(--warning-light);
  color: var(--warning);
  border: 1px solid var(--warning-border);
}

.recon-pill-results {
  background: var(--danger-light);
  color: var(--danger);
  border: 2px solid var(--danger);
  font-size: 1.05rem;
  font-weight: 800;
  box-shadow: 0 2px 8px rgba(239, 68, 68, 0.2);
}

.recon-mode-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.mode-select {
  padding: 6px 10px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.82rem;
  cursor: pointer;
}

/* Scanner Section */
.scanner-section {
  margin-bottom: 24px;
}

.scanner-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 18px 22px;
  box-shadow: var(--shadow-sm);
}

.scanner-input-wrapper {
  margin-top: 10px;
  position: relative;
}

.scanner-input {
  width: 100%;
  padding: 12px 16px;
  border-radius: 8px;
  border: 2px solid var(--border-color);
  background: var(--bg-subtle);
  color: var(--text-main);
  font-size: 1rem;
  font-family: var(--font-mono);
  outline: none;
  transition: border-color 0.2s;
}

.scanner-input:focus {
  border-color: var(--border-focus);
  background: var(--bg-card);
}

.scan-result-card {
  margin-top: 12px;
  padding: 14px 16px;
  border-radius: 8px;
  display: none;
}

/* KPI Summary Cards */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.kpi-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.kpi-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.kpi-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
}

.kpi-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.kpi-input .kpi-icon { background: var(--primary-light); color: var(--primary); }
.kpi-output .kpi-icon { background: var(--warning-light); color: var(--warning); }
.kpi-matched .kpi-icon { background: var(--success-light); color: var(--success); }
.kpi-missing .kpi-icon { background: var(--danger-light); color: var(--danger); }
.kpi-extra .kpi-icon { background: var(--purple-light); color: var(--purple); }

.kpi-value {
  font-size: 2rem;
  font-weight: 800;
  font-family: var(--font-mono);
  margin-bottom: 4px;
  line-height: 1.1;
}

.kpi-sub {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* Analytics Progress Meter */
.analytics-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 16px 20px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
}

.progress-track {
  height: 12px;
  width: 100%;
  background: var(--bg-subtle);
  border-radius: 6px;
  overflow: hidden;
  display: flex;
  margin-top: 12px;
}

.progress-seg {
  height: 100%;
  transition: width 0.3s ease;
}

.seg-matched { background: var(--success); }
.seg-missing { background: var(--danger); }
.seg-extra { background: var(--warning); }

/* Data Explorer & Table Section */
.data-section {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.tabs-header {
  display: flex;
  overflow-x: auto;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-subtle);
  padding: 6px 12px 0;
  gap: 6px;
}

.tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 18px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  border-bottom: 3px solid transparent;
  border-top-left-radius: 8px;
  border-top-right-radius: 8px;
  white-space: nowrap;
  transition: all 0.2s;
}

.tab-btn:hover {
  color: var(--text-main);
  background: var(--bg-card);
}

.tab-btn.active {
  color: var(--primary);
  background: var(--bg-card);
  border-bottom-color: var(--primary);
}

.tab-badge {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 12px;
  background: var(--bg-accent);
  color: var(--text-main);
}

.badge-danger { background: var(--danger-light); color: var(--danger); }
.badge-success { background: var(--success-light); color: var(--success); }
.badge-warning { background: var(--warning-light); color: var(--warning); }
.badge-primary { background: var(--primary-light); color: var(--primary); }
.badge-purple { background: var(--purple-light); color: var(--purple); }

/* Table Toolbar */
.table-toolbar {
  padding: 16px 20px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid var(--border-color);
}

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

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

[dir="rtl"] .search-icon-pos { right: 12px; }
[dir="ltr"] .search-icon-pos { left: 12px; }

.search-input {
  width: 100%;
  padding: 8px 14px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background: var(--bg-subtle);
  color: var(--text-main);
  font-size: 0.875rem;
  outline: none;
}

[dir="rtl"] .search-input { padding-right: 36px; }
[dir="ltr"] .search-input { padding-left: 36px; }

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

.toolbar-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* Sub-filter Bar (for Duplicates tab) */
.sub-filter-bar {
  display: flex;
  gap: 8px;
  padding: 10px 20px;
  background: var(--bg-subtle);
  border-bottom: 1px solid var(--border-color);
  align-items: center;
}

.sub-filter-btn {
  padding: 5px 12px;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  cursor: pointer;
  color: var(--text-muted);
}

.sub-filter-btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* Responsive Table */
.table-responsive {
  overflow-x: auto;
  min-height: 250px;
}

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

.data-table th {
  background: var(--bg-subtle);
  padding: 12px 16px;
  font-weight: 700;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

.data-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
}

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

.row-missing {
  background-color: rgba(239, 68, 68, 0.03);
}

.row-extra {
  background-color: rgba(245, 158, 11, 0.03);
}

.row-duplicate {
  background-color: rgba(139, 92, 246, 0.04);
}

.badge-pill-row {
  display: inline-block;
  padding: 2px 6px;
  background: var(--bg-accent);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  margin: 1px 2px;
}

/* Pagination */
.pagination-wrapper {
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-color);
  background: var(--bg-card);
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Empty State */
.empty-state {
  padding: 50px 20px;
  text-align: center;
  color: var(--text-muted);
}

.empty-icon {
  margin-bottom: 12px;
  color: var(--text-subtle);
}

/* Modal Overlay */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
  backdrop-filter: blur(4px);
}

.modal-content {
  background: var(--bg-card);
  border-radius: var(--radius);
  max-width: 520px;
  width: 90%;
  padding: 24px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.modal-header h3 {
  font-size: 1.15rem;
  font-weight: 700;
}

.paste-textarea {
  width: 100%;
  height: 180px;
  padding: 12px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background: var(--bg-subtle);
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  resize: vertical;
  outline: none;
  margin-bottom: 16px;
}

.paste-textarea:focus {
  border-color: var(--border-focus);
  background: var(--bg-card);
}

/* Animation */
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Print Styles */
.print-header { display: none; }

@media print {
  .navbar, .upload-section, .reconciliation-banner, .scanner-section,
  .table-toolbar, .pagination-wrapper, .modal-overlay, .btn {
    display: none !important;
  }
  .print-header {
    display: block !important;
    margin-bottom: 20px;
    text-align: center;
  }
  body {
    background: #fff !important;
    color: #000 !important;
  }
  .data-section, .kpi-card, .data-table th, .data-table td {
    border-color: #ccc !important;
  }
}

/* Login Screen Styles */
.login-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg-main);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.login-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  width: 100%;
  max-width: 420px;
  padding: 36px 30px;
  box-shadow: var(--shadow-lg);
  text-align: center;
}

.login-icon-box {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  color: #fff;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
}

.login-card h2 {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 4px;
}

.login-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 22px;
}

.form-group {
  margin-bottom: 16px;
  text-align: inherit;
}

.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--text-muted);
}

.input-with-icon {
  position: relative;
  display: flex;
  align-items: center;
}

.input-icon {
  position: absolute;
  color: var(--text-muted);
  pointer-events: none;
}
[dir="rtl"] .input-icon { right: 12px; }
[dir="ltr"] .input-icon { left: 12px; }

.form-input {
  width: 100%;
  padding: 11px 14px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background: var(--bg-subtle);
  color: var(--text-main);
  font-size: 0.92rem;
  outline: none;
  font-family: inherit;
  transition: all 0.2s;
}
[dir="rtl"] .input-with-icon .form-input { padding-right: 38px; }
[dir="ltr"] .input-with-icon .form-input { padding-left: 38px; }

.form-input:focus {
  border-color: var(--border-focus);
  background: var(--bg-card);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.password-toggle-btn {
  position: absolute;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
}
[dir="rtl"] .password-toggle-btn { left: 10px; }
[dir="ltr"] .password-toggle-btn { right: 10px; }

.login-alert {
  background: var(--danger-light);
  border: 1px solid var(--danger-border);
  color: var(--danger);
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 16px;
  display: none;
}

.login-btn {
  width: 100%;
  padding: 12px;
  font-size: 0.95rem;
  margin-top: 8px;
}

/* User pill in navbar */
.user-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 20px;
  background: var(--bg-accent);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-main);
}