:root {
  --sidebar-bg: #1a1d23;
  --sidebar-hover: #2a2d35;
  --sidebar-active: #0d6efd;
  --content-bg: #212529;
  --card-bg: #2a2d35;
  --border-color: #3a3d45;
}

body {
  background: var(--content-bg);
  min-height: 100vh;
  overflow-x: hidden;
}

#main-content {
  min-height: 100vh;
  padding: 1.5rem;
}

#adminNav .nav-link {
  padding: 0.75rem 1.25rem;
  color: var(--bs-body-color);
  border-left: 3px solid transparent;
  transition: all 0.15s;
}
#adminNav .nav-link:hover {
  background: var(--bs-dark);
  border-left-color: var(--bs-primary);
}
#adminNav .nav-link.active {
  background: var(--bs-dark);
  border-left-color: var(--bs-primary);
  color: var(--bs-primary);
}

.top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  background: var(--sidebar-bg);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 1030;
}

.top-bar .brand {
  font-weight: 700;
  color: #fff;
  font-size: 1.1rem;
}

.top-bar .btn-outline-secondary {
  color: #8b8e96;
  border-color: var(--border-color);
}

.top-bar .btn-outline-secondary:hover {
  color: #fff;
  background: var(--sidebar-hover);
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  margin-bottom: 1rem;
}

.card-header {
  background: rgba(0,0,0,0.2);
  border-bottom: 1px solid var(--border-color);
  font-weight: 600;
}

.table {
  color: #e0e0e0;
  margin-bottom: 0;
}

.table > :not(caption) > * > * {
  border-bottom-color: var(--border-color);
  vertical-align: middle;
}

.table thead th {
  border-bottom: 2px solid var(--border-color);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.5px;
  color: #8b8e96;
}

.table-hover tbody tr:hover {
  background: rgba(13,110,253,0.05);
  color: #fff;
}

.btn-icon {
  padding: 0.25rem 0.5rem;
  font-size: 0.85rem;
}

.stat-card {
  text-align: center;
  padding: 1.5rem;
}

.stat-card .stat-icon {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
  color: #0d6efd;
}

.stat-card .stat-number {
  font-size: 2rem;
  font-weight: 700;
  color: #fff;
}

.stat-card .stat-label {
  color: #8b8e96;
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.5px;
}

.modal-content {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
}

.modal-header {
  border-bottom: 1px solid var(--border-color);
}

.modal-footer {
  border-top: 1px solid var(--border-color);
}

.btn-close {
  filter: invert(1);
}

.form-control, .form-select {
  background: #1a1d23;
  border: 1px solid var(--border-color);
  color: #e0e0e0;
}

.form-control:focus, .form-select:focus {
  background: #1a1d23;
  border-color: #0d6efd;
  color: #e0e0e0;
  box-shadow: 0 0 0 0.2rem rgba(13,110,253,0.15);
}

.form-control::placeholder {
  color: #6c757d;
}

.form-check-input {
  background: #1a1d23;
  border: 1px solid var(--border-color);
}

.toast-container {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 9999;
}

.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--content-bg);
}

.login-card {
  width: 100%;
  max-width: 420px;
  padding: 2rem;
}

.login-card .login-logo {
  text-align: center;
  margin-bottom: 2rem;
}

.login-card .login-logo i {
  font-size: 3rem;
  color: #0d6efd;
}

.login-card .login-logo h3 {
  color: #fff;
  margin-top: 0.75rem;
  font-weight: 700;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-header h4 {
  margin: 0;
  color: #fff;
  font-weight: 600;
}

.filter-bar {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
  align-items: center;
}

.filter-bar .form-select {
  min-width: 200px;
}

.badge-count {
  background: #0d6efd;
  color: #fff;
  border-radius: 50%;
  padding: 0.15rem 0.5rem;
  font-size: 0.75rem;
  margin-left: 0.25rem;
}

#adminNav .nav-link {
  color: #8b8e96;
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  transition: all 0.2s;
  border-left: 3px solid transparent;
}

#adminNav .nav-link:hover {
  background: var(--sidebar-hover);
  color: #fff;
}

#adminNav .nav-link.active {
  background: var(--sidebar-hover);
  color: #fff;
  border-left-color: var(--sidebar-active);
}

#adminNav .nav-link i {
  font-size: 1.1rem;
  width: 1.5rem;
  text-align: center;
}

.delete-account-btn {
  font-size: 0.8rem;
}

.offcanvas {
  background: var(--sidebar-bg);
}

.offcanvas .btn-close {
  filter: invert(1);
}

.sort-group {
  margin-bottom: 1rem;
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  overflow: hidden;
}

.sort-group-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  background: rgba(0,0,0,0.2);
  cursor: pointer;
  user-select: none;
  font-weight: 600;
  color: #fff;
  border-bottom: 1px solid var(--border-color);
}

.sort-group-header.collapsed {
  border-bottom: none;
}

.sort-group-header i.bi-chevron-down {
  transition: transform 0.2s;
}

.sort-group-header.collapsed i.bi-chevron-down {
  transform: rotate(-90deg);
}

.sort-group-body {
  padding: 0.5rem;
  min-height: 2rem;
}

.sort-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  margin-bottom: 0.25rem;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 0.375rem;
  cursor: grab;
  transition: opacity 0.15s, background 0.15s;
}

.sort-item:active {
  cursor: grabbing;
}

.sort-item.dragging {
  opacity: 0.4;
}

.sort-item.drag-over {
  border-color: #0d6efd;
  background: rgba(13,110,253,0.1);
}

.sort-item .drag-handle {
  cursor: grab;
  color: #6c757d;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.sort-item .item-title {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sort-item .item-meta {
  font-size: 0.8rem;
  color: #8b8e96;
  flex-shrink: 0;
}

.sort-item .item-actions {
  flex-shrink: 0;
  display: flex;
  gap: 0.25rem;
}

.group-count {
  font-size: 0.8rem;
  color: #8b8e96;
  font-weight: 400;
  margin-left: auto;
}

.sort-group-sub {
  border-color: var(--border-color) !important;
}

.sort-group-sub > .sort-group-header {
  background: rgba(0,0,0,0.1);
  font-weight: 500;
  font-size: 0.9rem;
  padding: 0.5rem 0.75rem;
}

.sort-group-cat > .sort-group-body {
  padding: 0.5rem;
}

@media (max-width: 767px) {
  .page-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .filter-bar {
    flex-direction: column;
  }

  .filter-bar .form-select {
    min-width: 100%;
  }
}