/* ============================================
   AERONEX | DJI Enterprise - Admin Panel Styles
   ============================================ */

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

:root {
  --black: #0d0d0d;
  --dark-gray: #1a1a1a;
  --mid-gray: #3a3a3a;
  --light-gray: #8a8a8a;
  --border-gray: #e0e0e0;
  --bg-light: #f5f5f5;
  --bg-white: #ffffff;
  --sidebar-bg: #0d0d0d;
  --sidebar-text: rgba(255,255,255,0.75);
  --sidebar-active: #ffffff;
  --sidebar-hover: rgba(255,255,255,0.1);
  --success-green: #16a34a;
  --success-bg: #f0fdf4;
  --success-border: #bbf7d0;
  --danger-red: #dc2626;
  --danger-bg: #fef2f2;
  --danger-border: #fecaca;
  --warning-orange: #ea580c;
  --blue: #2563eb;
  --blue-bg: #eff6ff;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.10);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.15);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --transition: 0.18s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-light);
  color: var(--black);
  line-height: 1.6;
  min-height: 100vh;
}

/* ============ LOGIN PAGE ============ */
.login-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--bg-light);
  padding: 24px;
}

.login-card {
  background: var(--bg-white);
  border: 1px solid var(--border-gray);
  border-radius: var(--radius-lg);
  padding: 44px 40px 36px;
  width: 100%;
  max-width: 420px;
  box-shadow: var(--shadow-lg);
}

.login-logo {
  text-align: center;
  margin-bottom: 28px;
}

.login-logo img {
  height: 32px;
  width: auto;
}

.login-divider {
  height: 1px;
  background: var(--border-gray);
  margin: 20px 0;
}

.login-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--black);
  text-align: center;
  margin-bottom: 6px;
}

.login-subtitle {
  font-size: 13px;
  color: var(--light-gray);
  text-align: center;
  margin-bottom: 28px;
}

.login-form .form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--mid-gray);
  margin-bottom: 7px;
}

.input-wrapper {
  position: relative;
}

.input-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--light-gray);
  font-size: 14px;
  pointer-events: none;
}

.form-input {
  width: 100%;
  padding: 11px 14px 11px 38px;
  border: 1.5px solid var(--border-gray);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: inherit;
  color: var(--black);
  background: var(--bg-white);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form-input:focus {
  border-color: var(--black);
  box-shadow: 0 0 0 3px rgba(13,13,13,0.07);
}

.btn-login {
  width: 100%;
  padding: 13px;
  background: var(--black);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: background var(--transition);
  margin-top: 6px;
}

.btn-login:hover { background: var(--dark-gray); }

.login-error {
  background: var(--danger-bg);
  border: 1px solid var(--danger-border);
  color: var(--danger-red);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  margin-top: 12px;
  display: none;
}

.login-error.visible { display: block; }

/* ============ ADMIN LAYOUT ============ */
.admin-layout {
  display: flex;
  min-height: 100vh;
}

/* ---- Sidebar ---- */
.sidebar {
  width: 240px;
  background: var(--sidebar-bg);
  color: var(--sidebar-text);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 50;
  transition: transform var(--transition);
}

.sidebar-logo {
  padding: 22px 20px 18px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.sidebar-logo img {
  height: 28px;
  width: auto;
  filter: brightness(0) invert(1);
}

.sidebar-section-title {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.35);
  padding: 18px 20px 6px;
}

.sidebar-nav { flex: 1; padding: 8px 0; }

.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  color: var(--sidebar-text);
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 500;
  transition: all var(--transition);
  border-radius: 0;
  cursor: pointer;
}

.sidebar-nav a:hover { background: var(--sidebar-hover); color: #fff; }
.sidebar-nav a.active { background: rgba(255,255,255,0.12); color: #fff; }
.sidebar-nav a i { width: 18px; text-align: center; font-size: 13px; }

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.btn-logout {
  display: flex;
  align-items: center;
  gap: 8px;
  background: none;
  border: 1px solid rgba(255,255,255,0.15);
  color: rgba(255,255,255,0.7);
  padding: 9px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-family: inherit;
  cursor: pointer;
  width: 100%;
  transition: all var(--transition);
  font-weight: 500;
}

.btn-logout:hover { background: rgba(255,255,255,0.08); color: #fff; border-color: rgba(255,255,255,0.3); }

/* ---- Main Content Area ---- */
.admin-main {
  margin-left: 240px;
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.admin-topbar {
  background: var(--bg-white);
  border-bottom: 1px solid var(--border-gray);
  padding: 0 28px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 40;
  box-shadow: var(--shadow-sm);
}

.topbar-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--black);
}

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

.admin-body { padding: 28px; }

/* ---- Stats Cards ---- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--bg-white);
  border: 1px solid var(--border-gray);
  border-radius: var(--radius-md);
  padding: 20px 22px;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.stat-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
}

.stat-card.total::after { background: var(--black); }
.stat-card.dubai::after { background: #2563eb; }
.stat-card.saudi::after { background: #16a34a; }

.stat-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--light-gray);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.stat-value {
  font-size: 32px;
  font-weight: 700;
  color: var(--black);
  line-height: 1;
  letter-spacing: -0.02em;
}

.stat-sub {
  font-size: 12px;
  color: var(--light-gray);
  margin-top: 4px;
}

/* ---- Data Table Card ---- */
.table-card {
  background: var(--bg-white);
  border: 1px solid var(--border-gray);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.table-card-header {
  padding: 18px 22px;
  border-bottom: 1px solid var(--border-gray);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.table-card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--black);
}

.table-toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.search-bar {
  position: relative;
}

.search-bar i {
  position: absolute;
  left: 11px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--light-gray);
  font-size: 13px;
}

.search-bar input {
  padding: 8px 12px 8px 33px;
  border: 1.5px solid var(--border-gray);
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-family: inherit;
  color: var(--black);
  outline: none;
  width: 220px;
  transition: border-color var(--transition);
}

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

.filter-select {
  padding: 8px 12px;
  border: 1.5px solid var(--border-gray);
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-family: inherit;
  color: var(--black);
  background: var(--bg-white);
  outline: none;
  cursor: pointer;
  transition: border-color var(--transition);
}

.filter-select:focus { border-color: var(--black); }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: all var(--transition);
  border: 1.5px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: var(--black);
  color: #fff;
  border-color: var(--black);
}
.btn-primary:hover { background: var(--dark-gray); }

.btn-secondary {
  background: var(--bg-white);
  color: var(--black);
  border-color: var(--border-gray);
}
.btn-secondary:hover { background: var(--bg-light); border-color: var(--mid-gray); }

.btn-success {
  background: var(--success-bg);
  color: var(--success-green);
  border-color: var(--success-border);
}
.btn-success:hover { background: #dcfce7; }

.btn-danger {
  background: var(--danger-bg);
  color: var(--danger-red);
  border-color: var(--danger-border);
}
.btn-danger:hover { background: #fee2e2; }

.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-lg { padding: 12px 20px; font-size: 14px; font-weight: 600; }

/* ---- Table ---- */
.data-table-wrapper { overflow-x: auto; }

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

.data-table thead tr {
  background: var(--bg-light);
  border-bottom: 2px solid var(--border-gray);
}

.data-table th {
  padding: 12px 16px;
  text-align: left;
  font-size: 11px;
  font-weight: 600;
  color: var(--light-gray);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.data-table td {
  padding: 12px 16px;
  border-bottom: 1px solid #f0f0f0;
  color: var(--black);
  vertical-align: middle;
}

.data-table tbody tr:hover { background: var(--bg-light); }
.data-table tbody tr:last-child td { border-bottom: none; }

.td-ean {
  font-family: 'Courier New', monospace;
  font-size: 12px;
  color: var(--mid-gray);
}

.td-model {
  max-width: 280px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-weight: 500;
}

.warehouse-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 9px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
}

.warehouse-badge.dubai {
  background: #eff6ff;
  color: #2563eb;
}

.warehouse-badge.saudi {
  background: #f0fdf4;
  color: #16a34a;
}

.qty-badge {
  font-size: 13px;
  font-weight: 700;
}

.qty-badge.positive { color: var(--black); }
.qty-badge.zero { color: var(--light-gray); }
.qty-badge.negative { color: var(--danger-red); }

.actions-cell {
  display: flex;
  gap: 6px;
  align-items: center;
}

/* ---- Pagination ---- */
.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 22px;
  border-top: 1px solid var(--border-gray);
  flex-wrap: wrap;
  gap: 10px;
}

.pagination-info {
  font-size: 12px;
  color: var(--light-gray);
}

.pagination-controls {
  display: flex;
  align-items: center;
  gap: 4px;
}

.page-btn {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1.5px solid var(--border-gray);
  border-radius: var(--radius-sm);
  background: var(--bg-white);
  font-size: 13px;
  font-family: inherit;
  color: var(--mid-gray);
  cursor: pointer;
  transition: all var(--transition);
}

.page-btn:hover { background: var(--bg-light); border-color: var(--mid-gray); }
.page-btn.active { background: var(--black); color: #fff; border-color: var(--black); }
.page-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ============ MODAL ============ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  backdrop-filter: blur(2px);
}

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

.modal {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
  animation: modalIn 0.2s ease;
}

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

.modal-header {
  padding: 22px 24px 18px;
  border-bottom: 1px solid var(--border-gray);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--black);
}

.modal-close {
  background: none;
  border: none;
  color: var(--light-gray);
  font-size: 20px;
  cursor: pointer;
  padding: 4px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  display: flex;
  align-items: center;
  line-height: 1;
}

.modal-close:hover { color: var(--danger-red); background: var(--danger-bg); }

.modal-body { padding: 22px 24px; }

.modal-footer {
  padding: 16px 24px 20px;
  border-top: 1px solid var(--border-gray);
  display: flex;
  gap: 10px;
  justify-content: flex-end;
}

.modal-form .form-group { margin-bottom: 16px; }

.modal-form .form-input,
.modal-form select {
  width: 100%;
  padding: 10px 13px;
  border: 1.5px solid var(--border-gray);
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  font-family: inherit;
  color: var(--black);
  outline: none;
  transition: border-color var(--transition);
  background: var(--bg-white);
}

.modal-form .form-input:focus,
.modal-form select:focus {
  border-color: var(--black);
  box-shadow: 0 0 0 3px rgba(13,13,13,0.07);
}

/* ---- CSV Upload Section ---- */
.csv-upload-area {
  border: 2px dashed var(--border-gray);
  border-radius: var(--radius-md);
  padding: 32px 20px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  background: var(--bg-light);
}

.csv-upload-area:hover,
.csv-upload-area.dragover {
  border-color: var(--black);
  background: var(--bg-white);
}

.csv-upload-area i {
  font-size: 36px;
  color: var(--light-gray);
  margin-bottom: 10px;
  display: block;
}

.csv-upload-area p {
  font-size: 14px;
  font-weight: 500;
  color: var(--mid-gray);
  margin-bottom: 5px;
}

.csv-upload-area span {
  font-size: 12px;
  color: var(--light-gray);
}

.csv-preview {
  background: var(--bg-light);
  border: 1px solid var(--border-gray);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  margin-top: 14px;
  display: none;
}

.csv-preview.visible { display: block; }

.csv-preview-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--black);
  margin-bottom: 6px;
}

.csv-preview-info {
  font-size: 12px;
  color: var(--mid-gray);
  margin-bottom: 8px;
}

.csv-preview-warning {
  font-size: 12px;
  color: var(--warning-orange);
  background: #fff7ed;
  border: 1px solid #fed7aa;
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  margin-top: 8px;
}

/* ---- Progress Bar ---- */
.progress-bar-wrapper {
  background: var(--border-gray);
  border-radius: 10px;
  height: 8px;
  overflow: hidden;
  margin: 10px 0;
}

.progress-bar-fill {
  height: 100%;
  background: var(--black);
  border-radius: 10px;
  transition: width 0.3s ease;
  width: 0%;
}

/* ---- Toast Notification ---- */
.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 8px;
  animation: toastIn 0.25s ease;
  max-width: 320px;
}

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

.toast.success { background: var(--success-bg); color: var(--success-green); border: 1px solid var(--success-border); }
.toast.error { background: var(--danger-bg); color: var(--danger-red); border: 1px solid var(--danger-border); }
.toast.info { background: var(--blue-bg); color: var(--blue); border: 1px solid #bfdbfe; }

/* ---- Empty State ---- */
.empty-state {
  padding: 56px 20px;
  text-align: center;
  color: var(--light-gray);
}

.empty-state i { font-size: 40px; margin-bottom: 12px; display: block; }
.empty-state p { font-size: 14px; }

/* ---- Delete Confirm ---- */
.delete-confirm-text {
  font-size: 14px;
  color: var(--mid-gray);
  line-height: 1.6;
}

.delete-confirm-text strong { color: var(--black); }

/* ---- Responsive Admin ---- */
@media (max-width: 900px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .admin-main { margin-left: 0; }
  .stats-grid { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .admin-body { padding: 16px; }
  .table-card-header { flex-direction: column; align-items: flex-start; }
  .table-toolbar { width: 100%; }
  .search-bar input { width: 100%; }
}