/* ═══════════════════════════════════════════════════════════════════════════════
   Admin Dashboard - Modern Bootstrap 5 Styling
   ═══════════════════════════════════════════════════════════════════════════════ */

:root {
  --primary:       #3b82f6;
  --primary-dark:  #1e40af;
  --success:       #10b981;
  --danger:        #ef4444;
  --warning:       #f59e0b;
  --info:          #06b6d4;
  --dark-bg:       #1e1e1e;
  --dark-surface:  #2d2d2d;
  --dark-border:   #3a3a3a;
  --light-bg:      #f8fafc;
  --light-surface: #ffffff;
  --light-border:  #e2e8f0;
  --transition:    0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html[data-theme="light"] {
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --border-color: #e2e8f0;
  --shadow: rgba(0, 0, 0, 0.1);
}

html[data-theme="dark"] {
  --bg-primary: #1e1e1e;
  --bg-secondary: #2d2d2d;
  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --border-color: #3a3a3a;
  --shadow: rgba(0, 0, 0, 0.4);
}

/* ──── Base Styles ──── */
* {
  transition: background-color var(--transition), color var(--transition), border-color var(--transition);
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 14px;
  line-height: 1.6;
}

html[data-theme="dark"] body {
  background-color: var(--bg-primary);
}

/* ──── Cards ──── */
.card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  box-shadow: 0 1px 3px var(--shadow);
  transition: all var(--transition);
}

.card:hover {
  box-shadow: 0 4px 12px var(--shadow);
  transform: translateY(-2px);
}

.card-body {
  padding: 1.5rem;
}

/* ──── KPI Card ──── */
.kpi-card {
  position: relative;
  overflow: hidden;
}

.kpi-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(to right, var(--primary), var(--info));
}

.kpi-card.border-success::before {
  background: linear-gradient(to right, var(--success), #6ee7b7);
}

.kpi-card.border-danger::before {
  background: linear-gradient(to right, var(--danger), #fca5a5);
}

.kpi-card.border-warning::before {
  background: linear-gradient(to right, var(--warning), #fde68a);
}

.kpi-icon {
  font-size: 2rem;
  opacity: 0.2;
}

.kpi-trend {
  font-size: 0.875rem;
  margin-top: 0.5rem;
  font-weight: 600;
}

.kpi-trend.trend-up {
  color: var(--success);
}

.kpi-trend.trend-down {
  color: var(--danger);
}

/* ──── Collapsible Sections ──── */
.collapsible-section {
  margin-bottom: 1rem;
}

.collapsible-section .btn {
  background-color: var(--bg-secondary);
  border-color: var(--border-color);
  color: var(--text-primary);
  border-radius: 0.75rem;
  padding: 0.875rem 1.25rem;
  font-weight: 500;
  transition: all var(--transition);
}

.collapsible-section .btn:hover {
  background-color: var(--bg-secondary);
  border-color: var(--primary);
  color: var(--primary);
}

.collapsible-section .btn.collapsed {
  background-color: transparent;
}

.collapsible-section .collapse-icon {
  transition: transform var(--transition);
  font-size: 0.875rem;
}

.collapsible-section .btn.collapsed .collapse-icon {
  transform: rotate(0deg);
}

.collapsible-section .btn:not(.collapsed) .collapse-icon {
  transform: rotate(180deg);
}

.section-count-badge {
  background-color: var(--bg-primary);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  font-weight: 600;
  font-size: 0.75rem;
  border-radius: 999px;
  padding: 0.15rem 0.55rem;
}

@media (max-width: 576px) {
  .collapsible-section .btn {
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
  }
  .collapsible-section .btn > div {
    row-gap: 0.25rem;
  }
}

/* ──── Pagination ──── */
.pagination-wrapper {
  margin: 2rem 0;
  padding: 1rem;
  background-color: var(--bg-secondary);
  border-radius: 0.75rem;
  border: 1px solid var(--border-color);
}

.page-size-selector select {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 0.25rem 0.5rem;
  border-radius: 0.375rem;
}

.page-size-selector select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.pagination {
  gap: 0.5rem;
}

.page-link {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  border-radius: 0.375rem;
  transition: all var(--transition);
}

.page-link:hover:not(.disabled .page-link) {
  background-color: var(--primary);
  border-color: var(--primary);
  color: white;
}

.page-link.active {
  background-color: var(--primary);
  border-color: var(--primary);
}

.page-item.disabled .page-link {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ──── Loading Skeleton ──── */
.loading-skeleton {
  animation: skeleton-loading 1s linear infinite alternate;
}

.skeleton-row {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.skeleton-item {
  height: 1rem;
  background-color: var(--bg-secondary);
  border-radius: 0.375rem;
  flex: 1;
}

@keyframes skeleton-loading {
  0% {
    opacity: 1;
  }
  100% {
    opacity: 0.6;
  }
}

/* ──── Alerts ──── */
.alert {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  padding: 1rem 1.25rem;
  margin-bottom: 1rem;
}

.alert-success {
  border-left: 4px solid var(--success);
  color: var(--success);
}

.alert-danger {
  border-left: 4px solid var(--danger);
  color: var(--danger);
}

.alert-warning {
  border-left: 4px solid var(--warning);
  color: var(--warning);
}

.alert-info {
  border-left: 4px solid var(--info);
  color: var(--info);
}

/* ──── Tables ──── */
.table {
  color: var(--text-primary);
  border-color: var(--border-color);
}

.table thead th {
  background-color: var(--bg-secondary);
  border-color: var(--border-color);
  border-bottom: 2px solid var(--border-color);
  color: var(--text-secondary);
  font-weight: 600;
  padding: 1rem 0.75rem;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.table tbody td {
  border-color: var(--border-color);
  padding: 0.875rem 0.75rem;
  vertical-align: middle;
}

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

.table-responsive {
  border-radius: 0.75rem;
  border: 1px solid var(--border-color);
}

/* ──── Badges ──── */
.badge {
  padding: 0.375rem 0.75rem;
  font-weight: 500;
  font-size: 0.8125rem;
  border-radius: 0.375rem;
}

/* ──── Forms ──── */
.form-control,
.form-select,
.form-check-input {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  border-radius: 0.375rem;
  transition: all var(--transition);
}

.form-control:focus,
.form-select:focus {
  background-color: var(--bg-primary);
  border-color: var(--primary);
  color: var(--text-primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-check-input:checked {
  background-color: var(--primary);
  border-color: var(--primary);
}

.form-label {
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: 0.5rem;
}

/* ──── Buttons ──── */
.btn {
  border-radius: 0.375rem;
  font-weight: 500;
  transition: all var(--transition);
  text-transform: none;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.btn-primary {
  background-color: var(--primary);
  border-color: var(--primary);
  color: white;
}

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

.btn-secondary {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background-color: var(--border-color);
  border-color: var(--border-color);
}

.btn-outline-secondary {
  background-color: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
}

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

.btn-sm {
  padding: 0.375rem 0.75rem;
  font-size: 0.8125rem;
}

.btn-lg {
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
}

/* ──── Modals ──── */
.modal-content {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
}

.modal-header {
  background-color: var(--bg-secondary);
  border-color: var(--border-color);
  padding: 1.5rem;
}

.modal-header .btn-close {
  background-color: transparent;
  opacity: 0.6;
  transition: opacity var(--transition);
}

.modal-header .btn-close:hover {
  opacity: 1;
}

.modal-body {
  padding: 1.5rem;
  color: var(--text-primary);
}

.modal-footer {
  background-color: var(--bg-secondary);
  border-color: var(--border-color);
  padding: 1.5rem;
  gap: 0.75rem;
}

/* ──── Data Table Wrapper ──── */
.data-table-wrapper {
  background-color: var(--bg-secondary);
  padding: 1.25rem;
  border-radius: 0.75rem;
  border: 1px solid var(--border-color);
}

/* ──── Navigation ──── */
.bot-nav {
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 3px var(--shadow);
}

.brand {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text-primary);
}

.bot-links {
  display: flex;
  list-style: none;
  gap: 1.5rem;
  margin: 0;
  padding: 0;
}

.bot-links a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition);
}

.bot-links a:hover,
.bot-links a.nav-active {
  color: var(--primary);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-left: auto;
}

.admin-user-label {
  color: var(--text-secondary);
  font-weight: 500;
}

.btn-theme-toggle {
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  font-size: 1rem;
  transition: color var(--transition);
}

.btn-theme-toggle:hover {
  color: var(--primary);
}

.btn-logout {
  background-color: var(--danger);
  color: white;
  border: none;
  border-radius: 0.375rem;
  padding: 0.5rem 1rem;
  cursor: pointer;
  font-weight: 500;
  transition: all var(--transition);
}

.btn-logout:hover {
  background-color: #dc2626;
}

/* ──── Container ──── */
.admin-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem;
}

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

/* ──── Utility Classes ──── */
.text-muted {
  color: var(--text-secondary) !important;
}

.border-primary { border-color: var(--primary) !important; }
.border-success { border-color: var(--success) !important; }
.border-danger { border-color: var(--danger) !important; }
.border-warning { border-color: var(--warning) !important; }
.border-info { border-color: var(--info) !important; }

.text-primary { color: var(--primary) !important; }
.text-success { color: var(--success) !important; }
.text-danger { color: var(--danger) !important; }
.text-warning { color: var(--warning) !important; }
.text-info { color: var(--info) !important; }

.bg-primary { background-color: var(--primary) !important; }
.bg-success { background-color: var(--success) !important; }
.bg-danger { background-color: var(--danger) !important; }
.bg-warning { background-color: var(--warning) !important; }
.bg-info { background-color: var(--info) !important; }

/* ──── Responsive ──── */
@media (max-width: 768px) {
  .bot-nav {
    flex-direction: column;
    gap: 1rem;
    padding: 1rem;
  }

  .nav-right {
    width: 100%;
    justify-content: space-between;
  }

  .bot-links {
    flex-wrap: wrap;
    gap: 1rem;
  }

  .admin-container {
    padding: 1rem;
  }

  .pagination-wrapper {
    flex-direction: column;
    gap: 1rem;
  }

  .page-size-selector {
    width: 100%;
  }

  .kpi-card {
    margin-bottom: 1rem;
  }

  .btn {
    min-height: 44px;
    min-width: 44px;
    padding: 0.625rem 1rem;
  }
}

@media (max-width: 576px) {
  .table-responsive {
    font-size: 0.8125rem;
  }

  .table thead th,
  .table tbody td {
    padding: 0.5rem 0.25rem;
  }

  .modal-dialog {
    margin: 0.5rem;
  }

  .pagination {
    flex-wrap: wrap;
    gap: 0.25rem;
  }
}

/* ──── Scrollbar Styling ──── */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary);
}

/* ──── Print Styles ──── */
@media print {
  .btn-logout,
  .btn-theme-toggle,
  .pagination-wrapper,
  .collapsible-section .btn {
    display: none;
  }
}