/* ==========================================================================
   序知乐理 · 管理工作台 (Admin Workbench) — Executive Design System v2
   Harmonized with learning-platform.css warm academic & executive palette
   ========================================================================== */

:root {
  --wb-bg: #f6f7f3;
  --wb-surface: #ffffff;
  --wb-surface-subtle: #f9faf7;
  --wb-surface-muted: #f1f4ef;
  --wb-ink: #182c33;
  --wb-ink-secondary: #435861;
  --wb-ink-muted: #6e8087;
  --wb-border: #dfe5df;
  --wb-border-strong: #c5d0c8;
  --wb-primary: #1c353e;
  --wb-primary-hover: #12252c;
  --wb-accent: #ad8354;
  --wb-accent-soft: #f7f0e4;
  --wb-blue: #1d5b79;
  --wb-blue-soft: #eaf3f7;
  --wb-emerald: #166534;
  --wb-emerald-soft: #ecfdf3;
  --wb-amber: #b45309;
  --wb-amber-soft: #fffbeb;
  --wb-danger: #be123c;
  --wb-danger-soft: #fff1f2;
  --wb-purple: #5b3e85;
  --wb-purple-soft: #f4f0fa;
  --wb-radius-lg: 16px;
  --wb-radius-md: 12px;
  --wb-radius-sm: 8px;
  --wb-shadow-sm: 0 1px 3px rgba(20, 42, 50, 0.04), 0 1px 2px rgba(20, 42, 50, 0.03);
  --wb-shadow-md: 0 10px 26px -6px rgba(20, 42, 50, 0.08), 0 4px 10px -3px rgba(20, 42, 50, 0.04);
  --wb-shadow-lg: 0 24px 54px -12px rgba(15, 32, 39, 0.22), 0 8px 20px -6px rgba(15, 32, 39, 0.1);
}

.admin-wb-wrap {
  max-inline-size: 1360px;
  margin-inline: auto;
  padding-block: 6px 40px;
  padding-inline: 4px;
  color: var(--wb-ink);
  container-type: inline-size;
  container-name: workbench;
}

/* ==========================================================================
   1. Executive Header / Hero Banner
   ========================================================================== */
.admin-wb-header {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-end;
  gap: 20px;
  margin-block-end: 24px;
  padding: 28px 32px;
  border-radius: var(--wb-radius-lg);
  background:
    radial-gradient(circle at 92% 18%, rgba(173, 131, 84, 0.22), transparent 38%),
    radial-gradient(circle at 12% 88%, rgba(45, 95, 112, 0.28), transparent 45%),
    linear-gradient(135deg, #182d35 0%, #223d47 58%, #2a4853 100%);
  color: #f7f5ef;
  box-shadow: var(--wb-shadow-md);
  overflow: clip;
}

.admin-wb-header::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  inset-block-end: 0;
  block-size: 3px;
  background: linear-gradient(90deg, #ad8354, #d9b98b 50%, rgba(173, 131, 84, 0.2));
}

.admin-wb-header-main {
  position: relative;
  z-index: 1;
  min-inline-size: 0;
  flex: 1 1 360px;
}

.admin-wb-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #DFC097;
  margin-block-end: 10px;
}

.admin-wb-kicker-dot {
  inline-size: 7px;
  block-size: 7px;
  border-radius: 50%;
  background: #34d399;
  box-shadow: 0 0 0 3px rgba(52, 211, 153, 0.22);
}

.admin-wb-header h1 {
  margin: 0;
  font-size: clamp(1.5rem, 1.2rem + 1.2vw, 2.05rem);
  font-weight: 700;
  color: #ffffff;
  letter-spacing: -0.025em;
  line-height: 1.25;
}

.admin-wb-header p {
  margin: 8px 0 0;
  font-size: 13.5px;
  color: #c2d1d5;
  line-height: 1.6;
  max-inline-size: 68ch;
}

.admin-wb-header-actions {
  position: relative;
  z-index: 1;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

.admin-wb-header .admin-btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  color: #f4f6f6;
  backdrop-filter: blur(6px);
}

.admin-wb-header .admin-btn-secondary:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.35);
  color: #ffffff;
}

.admin-wb-header .admin-btn-primary {
  background: #d5ab78;
  border-color: #d5ab78;
  color: #172a31;
  font-weight: 650;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.18);
}

.admin-wb-header .admin-btn-primary:hover:not(:disabled) {
  background: #e3be90;
  border-color: #e3be90;
  color: #102026;
}

/* Sub-navigation bar for secondary workbench pages */
.admin-subnav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-block-end: 20px;
  padding: 8px 12px;
  background: var(--wb-surface);
  border: 1px solid var(--wb-border);
  border-radius: var(--wb-radius-md);
  box-shadow: var(--wb-shadow-sm);
}

.admin-subnav-tabs {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.admin-subnav-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 14px;
  border-radius: var(--wb-radius-sm);
  font-size: 13px;
  font-weight: 550;
  color: var(--wb-ink-secondary);
  text-decoration: none;
  transition: background 0.15s ease, color 0.15s ease;
}

.admin-subnav-link:hover {
  background: var(--wb-surface-muted);
  color: var(--wb-ink);
}

.admin-subnav-link.is-active {
  background: var(--wb-primary);
  color: #ffffff;
  font-weight: 600;
}

.admin-subnav-link svg {
  inline-size: 15px;
  block-size: 15px;
  flex-shrink: 0;
}

/* ==========================================================================
   2. Pending Alert / Status Banner
   ========================================================================== */
.admin-pending-alert {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  background: linear-gradient(90deg, #fffbeb 0%, #fef3c7 100%);
  border: 1px solid #f59e0b;
  border-inline-start: 5px solid #d97706;
  border-radius: var(--wb-radius-md);
  padding: 16px 22px;
  margin-block-end: 24px;
  box-shadow: 0 4px 14px rgba(217, 119, 6, 0.08);
}

.admin-pending-alert.is-clear {
  background: linear-gradient(90deg, #f0fdf4 0%, #f8faf7 100%);
  border: 1px solid #bbf7d0;
  border-inline-start: 5px solid #16a34a;
  box-shadow: var(--wb-shadow-sm);
}

.admin-pending-alert-text {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: #92400e;
  font-weight: 550;
  line-height: 1.5;
}

.admin-pending-alert.is-clear .admin-pending-alert-text {
  color: #166534;
}

.admin-pending-icon {
  inline-size: 34px;
  block-size: 34px;
  border-radius: 9px;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  background: rgba(217, 119, 6, 0.14);
  color: #b45309;
}

.admin-pending-alert.is-clear .admin-pending-icon {
  background: rgba(22, 163, 74, 0.12);
  color: #15803d;
}

/* ==========================================================================
   3. KPI Metric Cards Grid
   ========================================================================== */
.admin-stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
  margin-block-end: 30px;
}

.admin-stat-card {
  position: relative;
  background: var(--wb-surface);
  border: 1px solid var(--wb-border);
  border-radius: var(--wb-radius-md);
  padding: 20px 22px;
  box-shadow: var(--wb-shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
  overflow: clip;
}

.admin-stat-card::before {
  content: "";
  position: absolute;
  inset-block-start: 0;
  inset-inline: 0;
  block-size: 3px;
  background: var(--stat-accent, var(--wb-primary));
}

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

.admin-stat-card.tone-users { --stat-accent: #1d5b79; }
.admin-stat-card.tone-entitlements { --stat-accent: #16794b; }
.admin-stat-card.tone-grants { --stat-accent: #ad8354; }
.admin-stat-card.tone-deliveries { --stat-accent: #5b3e85; }

.admin-stat-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.admin-stat-card .stat-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--wb-ink-secondary);
  letter-spacing: 0.01em;
}

.admin-stat-icon {
  inline-size: 38px;
  block-size: 38px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  background: var(--wb-surface-muted);
  color: var(--stat-accent, var(--wb-primary));
}

.admin-stat-icon svg {
  inline-size: 19px;
  block-size: 19px;
}

.admin-stat-card .stat-value {
  font-size: clamp(1.75rem, 1.5rem + 0.8vw, 2.2rem);
  font-weight: 750;
  color: var(--wb-ink);
  margin-block: 8px 12px;
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.03em;
}

.admin-stat-card .stat-sub {
  font-size: 12px;
  color: var(--wb-ink-muted);
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding-block-start: 11px;
  border-block-start: 1px solid #eef1ec;
  font-variant-numeric: tabular-nums;
}

.stat-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--wb-surface-subtle);
  border: 1px solid #e7ece6;
  color: var(--wb-ink-secondary);
  font-size: 11.5px;
  font-weight: 500;
}

/* ==========================================================================
   4. Quick Entry Bento Grid
   ========================================================================== */
.admin-section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-block: 6px 16px;
}

.admin-section-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--wb-ink);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 9px;
  letter-spacing: -0.015em;
}

.admin-section-title::before {
  content: "";
  display: inline-block;
  inline-size: 4px;
  block-size: 16px;
  border-radius: 99px;
  background: var(--wb-accent);
}

.admin-section-subtitle {
  font-size: 12.5px;
  color: var(--wb-ink-muted);
  margin: 0;
}

.admin-quick-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(310px, 1fr));
  gap: 18px;
  margin-block-end: 32px;
}

.admin-quick-card {
  position: relative;
  background: var(--wb-surface);
  border: 1px solid var(--wb-border);
  border-radius: var(--wb-radius-md);
  padding: 22px;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 14px;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
  box-shadow: var(--wb-shadow-sm);
}

.admin-quick-card:hover {
  border-color: var(--wb-primary);
  box-shadow: var(--wb-shadow-md);
  transform: translateY(-2px);
}

.admin-quick-card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}

.admin-quick-icon {
  inline-size: 44px;
  block-size: 44px;
  border-radius: 12px;
  background: var(--qc-bg, #eef4f6);
  color: var(--qc-fg, #1c353e);
  border: 1px solid var(--qc-border, #dce8ec);
  display: grid;
  place-items: center;
  flex-shrink: 0;
  transition: transform 0.18s ease;
}

.admin-quick-card:hover .admin-quick-icon {
  transform: scale(1.05);
}

.admin-quick-icon svg {
  inline-size: 21px;
  block-size: 21px;
}

.admin-quick-icon.tone-blue { --qc-bg: #eaf3f8; --qc-fg: #195674; --qc-border: #d0e4ef; }
.admin-quick-icon.tone-amber { --qc-bg: #fcf4e4; --qc-fg: #9c621c; --qc-border: #f2dec0; }
.admin-quick-icon.tone-purple { --qc-bg: #f3effa; --qc-fg: #583b84; --qc-border: #e1d7f3; }
.admin-quick-icon.tone-emerald { --qc-bg: #eaf7ef; --qc-fg: #1b6942; --qc-border: #ccead8; }
.admin-quick-icon.tone-gold { --qc-bg: #f6f0e4; --qc-fg: #876336; --qc-border: #e6d7be; }
.admin-quick-icon.tone-slate { --qc-bg: #eef1f3; --qc-fg: #344952; --qc-border: #d8e0e4; }

.admin-quick-badge {
  font-size: 11.5px;
  font-weight: 650;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--wb-surface-muted);
  color: var(--wb-ink-secondary);
  border: 1px solid #e2e8e2;
  font-variant-numeric: tabular-nums;
}

.admin-quick-badge.has-pending {
  background: #fef2f2;
  color: #dc2626;
  border-color: #fecaca;
}

.admin-quick-card h3 {
  margin: 0 0 6px;
  font-size: 16.5px;
  font-weight: 700;
  color: var(--wb-ink);
  letter-spacing: -0.01em;
}

.admin-quick-card p {
  margin: 0;
  font-size: 13px;
  color: var(--wb-ink-muted);
  line-height: 1.6;
}

.admin-quick-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block-start: 12px;
  border-block-start: 1px solid #f0f3ee;
  font-size: 12.5px;
  font-weight: 650;
  color: var(--wb-primary);
}

.admin-quick-arrow {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: transform 0.18s ease;
}

.admin-quick-card:hover .admin-quick-arrow {
  transform: translateX(4px);
}

/* ==========================================================================
   5. Filter Toolbar & Inputs
   ========================================================================== */
.admin-filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: flex-end;
  background: var(--wb-surface);
  border: 1px solid var(--wb-border);
  border-radius: var(--wb-radius-md);
  padding: 18px 20px;
  margin-block-end: 20px;
  box-shadow: var(--wb-shadow-sm);
}

.admin-filter-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-inline-size: 140px;
}

.admin-filter-item label {
  font-size: 12px;
  font-weight: 650;
  color: var(--wb-ink-secondary);
  margin: 0;
  letter-spacing: 0.01em;
}

.admin-filter-input,
.admin-filter-select,
.admin-input {
  padding: 8px 12px;
  border: 1px solid var(--wb-border-strong);
  border-radius: var(--wb-radius-sm);
  font-size: 13.5px;
  background: #fcfdfb;
  color: var(--wb-ink);
  min-block-size: 38px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
}

.admin-filter-input:hover,
.admin-filter-select:hover,
.admin-input:hover {
  border-color: #9fb0a8;
}

.admin-filter-input:focus,
.admin-filter-select:focus,
.admin-input:focus {
  outline: none;
  background: #ffffff;
  border-color: var(--wb-primary);
  box-shadow: 0 0 0 3px rgba(28, 53, 62, 0.12);
}

.admin-filter-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

/* ==========================================================================
   6. Data Tables & User Identity Cells
   ========================================================================== */
.admin-table-container {
  background: var(--wb-surface);
  border: 1px solid var(--wb-border);
  border-radius: var(--wb-radius-md);
  overflow-x: auto;
  scrollbar-gutter: stable;
  box-shadow: var(--wb-shadow-sm);
}

.admin-table {
  inline-size: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 13.5px;
  text-align: start;
}

.admin-table th {
  background: #f5f7f3;
  color: var(--wb-ink-secondary);
  font-weight: 650;
  font-size: 12px;
  letter-spacing: 0.02em;
  padding: 13px 16px;
  border-block-end: 1px solid var(--wb-border);
  white-space: nowrap;
  position: sticky;
  inset-block-start: 0;
  z-index: 1;
}

.admin-table td {
  padding: 14px 16px;
  border-block-end: 1px solid #eef2ed;
  color: var(--wb-ink);
  vertical-align: middle;
  font-variant-numeric: tabular-nums;
}

.admin-table tbody tr {
  transition: background-color 0.12s ease;
}

.admin-table tbody tr:last-child td {
  border-block-end: none;
}

.admin-table tbody tr:hover {
  background: #f9fbf8;
}

.admin-user-cell {
  display: flex;
  align-items: center;
  gap: 11px;
  min-inline-size: 0;
}

.admin-user-avatar {
  inline-size: 34px;
  block-size: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, #e7efe9, #d7e4dc);
  border: 1px solid #c8d8ce;
  color: #1f443a;
  font-size: 13px;
  font-weight: 700;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  text-transform: uppercase;
}

.admin-user-avatar.role-admin {
  background: linear-gradient(135deg, #f7ecd9, #edd8b4);
  border-color: #dfc192;
  color: #6d4817;
}

.admin-user-avatar.role-teacher {
  background: linear-gradient(135deg, #e6f4ea, #d0ead8);
  border-color: #b4dec1;
  color: #14532d;
}

.admin-user-avatar.role-channel {
  background: linear-gradient(135deg, #f2ebfa, #e3d5f5);
  border-color: #cdb7ea;
  color: #4c2d73;
}

.admin-user-meta {
  min-inline-size: 0;
  line-height: 1.38;
}

.admin-user-meta strong {
  display: block;
  font-size: 13.5px;
  font-weight: 650;
  color: var(--wb-ink);
}

.admin-user-meta small {
  display: block;
  font-size: 12px;
  color: var(--wb-ink-muted);
  margin-block-start: 2px;
}

.admin-device-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-inline-size: 28px;
  padding: 2px 9px;
  border-radius: 999px;
  background: var(--wb-surface-muted);
  color: var(--wb-ink-secondary);
  font-size: 12px;
  font-weight: 600;
}

.admin-row-actions {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  align-items: center;
}

.admin-pagination-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-block-start: 16px;
  padding: 12px 18px;
  background: var(--wb-surface);
  border: 1px solid var(--wb-border);
  border-radius: var(--wb-radius-md);
  box-shadow: var(--wb-shadow-sm);
}

.admin-pagination-info {
  font-size: 13px;
  color: var(--wb-ink-secondary);
  font-variant-numeric: tabular-nums;
}

/* ==========================================================================
   7. Semantic Role & Status Badges
   ========================================================================== */
.admin-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  line-height: 1.4;
  white-space: nowrap;
  border: 1px solid transparent;
}

.admin-badge-student {
  background: #eff6ff;
  color: #1d4ed8;
  border-color: #dbeafe;
}

.admin-badge-teacher {
  background: #f0fdf4;
  color: #15803d;
  border-color: #dcfce7;
}

.admin-badge-channel {
  background: #faf5ff;
  color: #6d28d9;
  border-color: #f3e8ff;
}

.admin-badge-admin {
  background: #fef3c7;
  color: #92400e;
  border-color: #fde68a;
}

.admin-badge-active {
  background: #ecfdf3;
  color: #15803d;
  border-color: #bbf7d0;
}

.admin-badge-active::before {
  content: "";
  inline-size: 6px;
  block-size: 6px;
  border-radius: 50%;
  background: #16a34a;
}

.admin-badge-disabled {
  background: #fff1f2;
  color: #be123c;
  border-color: #fecdd3;
}

.admin-badge-disabled::before {
  content: "";
  inline-size: 6px;
  block-size: 6px;
  border-radius: 50%;
  background: #e11d48;
}

.admin-badge-pending {
  background: #fffbeb;
  color: #b45309;
  border-color: #fde68a;
}

.admin-badge-pending::before {
  content: "";
  inline-size: 6px;
  block-size: 6px;
  border-radius: 50%;
  background: #d97706;
}

.admin-badge-none {
  background: #f3f5f2;
  color: #64748b;
  border-color: #e2e8f0;
}

/* ==========================================================================
   8. Buttons
   ========================================================================== */
.admin-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: var(--wb-radius-sm);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease, box-shadow 0.15s ease, transform 0.1s ease;
  text-decoration: none;
  line-height: 1.35;
  min-block-size: 36px;
  white-space: nowrap;
}

.admin-btn:active:not(:disabled) {
  transform: translateY(1px);
}

.admin-btn-primary {
  background: var(--wb-primary);
  color: #ffffff;
  border-color: var(--wb-primary);
  box-shadow: 0 1px 2px rgba(24, 44, 51, 0.14);
}

.admin-btn-primary:hover:not(:disabled) {
  background: var(--wb-primary-hover);
  border-color: var(--wb-primary-hover);
  color: #ffffff;
}

.admin-btn-secondary {
  background: var(--wb-surface);
  color: var(--wb-ink);
  border-color: var(--wb-border-strong);
}

.admin-btn-secondary:hover:not(:disabled) {
  background: var(--wb-surface-muted);
  border-color: #9eb0a6;
  color: var(--wb-ink);
}

.admin-btn-danger {
  background: #fff1f2;
  color: #be123c;
  border-color: #fecdd3;
}

.admin-btn-danger:hover:not(:disabled) {
  background: #ffe4e6;
  border-color: #fda4af;
  color: #9f1239;
}

.admin-btn-sm {
  padding: 4px 10px;
  font-size: 12px;
  min-block-size: 30px;
  border-radius: 7px;
}

.admin-btn:disabled {
  opacity: 0.48;
  cursor: not-allowed;
}

/* ==========================================================================
   9. Modals & User Detail Drawer
   ========================================================================== */
.admin-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(16, 32, 38, 0.56);
  backdrop-filter: blur(5px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  padding: 16px;
  overscroll-behavior: contain;
}

.admin-modal-box {
  background: var(--wb-surface);
  border: 1px solid var(--wb-border);
  border-radius: var(--wb-radius-lg);
  inline-size: 100%;
  max-inline-size: 660px;
  max-block-size: 90dvh;
  overflow-y: auto;
  scrollbar-gutter: stable;
  overscroll-behavior: contain;
  box-shadow: var(--wb-shadow-lg);
  display: flex;
  flex-direction: column;
}

.admin-modal-box:focus {
  outline: none;
}

.admin-modal-header {
  padding: 18px 24px;
  border-block-end: 1px solid var(--wb-border);
  background: linear-gradient(180deg, #fafbf9 0%, #f3f6f2 100%);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  position: sticky;
  inset-block-start: 0;
  z-index: 2;
}

.admin-modal-header h2 {
  margin: 0;
  font-size: 17.5px;
  font-weight: 700;
  color: var(--wb-ink);
  letter-spacing: -0.015em;
}

.admin-modal-body {
  padding: 22px 24px;
  overflow-y: auto;
  flex: 1;
}

.admin-modal-footer {
  padding: 15px 24px;
  border-block-start: 1px solid var(--wb-border);
  background: #fafbf9;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

/* Detail Drawer Components */
.admin-detail-profile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 14px;
  background: linear-gradient(135deg, #f6f8f5 0%, #eef2ec 100%);
  border: 1px solid var(--wb-border);
  border-radius: var(--wb-radius-md);
  padding: 16px 18px;
  margin-block-end: 18px;
}

.admin-detail-metric {
  min-inline-size: 0;
}

.admin-detail-metric-label {
  font-size: 11.5px;
  font-weight: 600;
  color: var(--wb-ink-muted);
  margin-block-end: 4px;
}

.admin-detail-metric-value {
  font-size: 14.5px;
  font-weight: 700;
  color: var(--wb-ink);
  line-height: 1.4;
  overflow-wrap: anywhere;
}

.admin-detail-section {
  background: var(--wb-surface);
  border: 1px solid var(--wb-border);
  border-radius: var(--wb-radius-md);
  padding: 16px 18px;
  margin-block-end: 16px;
}

.admin-detail-section-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-block-end: 12px;
}

.admin-detail-section-head h4 {
  margin: 0;
  font-size: 14.5px;
  font-weight: 700;
  color: var(--wb-ink);
}

/* Paper Selector Checkboxes in Grant Modal */
.admin-paper-selector {
  max-block-size: 230px;
  overflow-y: auto;
  scrollbar-gutter: stable;
  border: 1px solid var(--wb-border);
  border-radius: var(--wb-radius-md);
  padding: 10px;
  background: #f9faf7;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 8px;
}

.admin-paper-label {
  display: flex;
  align-items: center;
  gap: 8px;
  min-block-size: 44px;
  font-size: 12.5px;
  padding: 8px 10px;
  background: var(--wb-surface);
  border: 1px solid #e4e9e3;
  border-radius: var(--wb-radius-sm);
  cursor: pointer;
  transition: border-color 0.14s ease, background-color 0.14s ease, box-shadow 0.14s ease;
}

.admin-paper-label input[type="checkbox"] {
  accent-color: var(--wb-primary);
  inline-size: 1.15em;
  aspect-ratio: 1;
  margin: 0;
  flex-shrink: 0;
  cursor: pointer;
}

.admin-paper-label:hover {
  border-color: #9cb3a8;
  background: #fcfdfb;
}

.admin-paper-label:has(input:checked) {
  background: #eef6f3;
  border-color: var(--wb-primary);
  box-shadow: 0 0 0 1px var(--wb-primary);
}

.admin-duration-pills {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.admin-duration-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 14px;
  border-radius: var(--wb-radius-sm);
  border: 1px solid var(--wb-border-strong);
  background: var(--wb-surface);
  font-size: 13px;
  font-weight: 550;
  color: var(--wb-ink-secondary);
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.14s ease;
}

.admin-duration-pill input[type="radio"],
.admin-modal-body input[type="radio"] {
  min-height: 16px;
  width: 16px;
  height: 16px;
  margin: 0;
  padding: 0;
  flex-shrink: 0;
  accent-color: var(--wb-primary);
}

.admin-duration-pill:hover {
  border-color: var(--wb-primary);
  color: var(--wb-ink);
}

.admin-duration-pill:has(input:checked) {
  background: #eef6f3;
  border-color: var(--wb-primary);
  color: var(--wb-primary);
  font-weight: 700;
  box-shadow: 0 0 0 1px var(--wb-primary);
}

/* ==========================================================================
   10. Responsive Adaptation (Tablet & 390px Mobile Viewports)
   ========================================================================== */
@media (max-width: 760px) {
  .admin-wb-wrap {
    padding-inline: 0;
    padding-block: 0 28px;
  }

  .admin-wb-header {
    padding: 20px 18px;
    border-radius: var(--wb-radius-md);
    margin-block-end: 18px;
  }

  .admin-wb-header-actions {
    inline-size: 100%;
  }

  .admin-wb-header-actions .admin-btn {
    flex: 1 1 auto;
  }

  .admin-subnav {
    padding: 8px;
  }

  .admin-subnav-tabs {
    inline-size: 100%;
  }

  .admin-subnav-link {
    flex: 1 1 auto;
    justify-content: center;
    padding: 7px 10px;
    font-size: 12px;
  }

  .admin-stat-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }

  .admin-stat-card {
    padding: 15px 14px;
  }

  .admin-stat-card .stat-value {
    font-size: 24px;
  }

  .admin-quick-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .admin-filter-bar {
    padding: 14px;
    gap: 10px;
  }

  .admin-filter-item {
    flex: 1 1 100% !important;
    min-inline-size: 0 !important;
  }

  .admin-filter-actions {
    inline-size: 100%;
  }

  .admin-filter-actions .admin-btn {
    flex: 1;
  }

  .admin-modal-backdrop {
    padding: 10px;
  }

  .admin-modal-box {
    max-block-size: 92dvh;
    border-radius: var(--wb-radius-md);
  }

  .admin-modal-header,
  .admin-modal-body,
  .admin-modal-footer {
    padding-inline: 16px;
  }

  .admin-paper-selector {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .admin-stat-grid {
    grid-template-columns: 1fr;
  }

  .admin-modal-body [ style*="display:flex" ] {
    flex-wrap: wrap;
  }

  #issued-reset-code {
    min-inline-size: 0;
    inline-size: 100%;
  }
}


/* ==========================================================================
   11. Role Workbenches — Teacher & Channel portals (shared system, own tone)
   ========================================================================== */
.admin-wb-header.portal-tone-teacher {
  background:
    radial-gradient(circle at 90% 15%, rgba(214, 186, 132, 0.24), transparent 40%),
    radial-gradient(circle at 10% 90%, rgba(70, 140, 110, 0.32), transparent 46%),
    linear-gradient(135deg, #17332c 0%, #1f4a3d 58%, #295a4a 100%);
}

.admin-wb-header.portal-tone-channel {
  background:
    radial-gradient(circle at 90% 15%, rgba(214, 176, 120, 0.24), transparent 40%),
    radial-gradient(circle at 10% 90%, rgba(120, 90, 160, 0.34), transparent 46%),
    linear-gradient(135deg, #261e38 0%, #33284b 58%, #3e3159 100%);
}

.portal-tone-teacher .admin-wb-kicker { color: #d9c08e; }
.portal-tone-channel .admin-wb-kicker { color: #e0c39a; }

.admin-stat-card.portal-stat-teal { --stat-accent: #1f6b55; }
.admin-stat-card.portal-stat-blue { --stat-accent: #1d5b79; }
.admin-stat-card.portal-stat-gold { --stat-accent: #ad8354; }
.admin-stat-card.portal-stat-plum { --stat-accent: #5b3e85; }
.admin-stat-card.portal-stat-slate { --stat-accent: #4b5f68; }
.admin-stat-card .stat-value strong { font: inherit; color: inherit; }

/* Generic panel replacing legacy .card inside role workbenches */
.portal-panel {
  background: var(--wb-surface);
  border: 1px solid var(--wb-border);
  border-radius: var(--wb-radius-md);
  box-shadow: var(--wb-shadow-sm);
  padding: 22px 24px;
  margin-block-end: 20px;
}

.portal-panel-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 12px;
  margin-block-end: 16px;
}

.portal-panel-head h2 {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  color: var(--wb-ink);
  letter-spacing: -0.015em;
  display: flex;
  align-items: center;
  gap: 9px;
}

.portal-panel-head h2::before {
  content: "";
  inline-size: 4px;
  block-size: 16px;
  border-radius: 99px;
  background: var(--wb-accent);
}

.portal-panel-head p,
.portal-panel > p {
  margin: 6px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--wb-ink-muted);
}

.portal-panel code,
.portal-panel strong.portal-mono {
  font-family: ui-monospace, Consolas, monospace;
  background: var(--wb-surface-muted);
  padding: 1px 6px;
  border-radius: 5px;
  font-size: 12.5px;
}

.portal-empty {
  text-align: center;
  padding: 32px 16px;
  color: var(--wb-ink-muted);
  font-size: 13px;
  border: 1px dashed var(--wb-border-strong);
  border-radius: var(--wb-radius-md);
  background: var(--wb-surface-subtle);
}

.portal-empty strong { display: block; color: var(--wb-ink-secondary); font-size: 14px; margin-block-end: 4px; }

/* Person / roster cards */
.portal-roster {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
}

.portal-person {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 16px 18px;
  border: 1px solid var(--wb-border);
  border-radius: var(--wb-radius-md);
  background: var(--wb-surface-subtle);
  transition: border-color 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
  min-inline-size: 0;
}

.portal-person:hover {
  border-color: var(--wb-border-strong);
  background: var(--wb-surface);
  box-shadow: var(--wb-shadow-sm);
}

.portal-person-top {
  display: flex;
  align-items: center;
  gap: 12px;
  min-inline-size: 0;
}

.portal-person-top .admin-user-meta { flex: 1; }
.portal-person-top h3 { margin: 0; font-size: 14.5px; font-weight: 700; color: var(--wb-ink); overflow-wrap: anywhere; }
.portal-person-top small { display: block; font-size: 12px; color: var(--wb-ink-muted); margin-block-start: 2px; overflow-wrap: anywhere; }

.portal-person-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}

.portal-person form,
.portal-person .portal-note-form {
  display: grid;
  gap: 8px;
  margin: 0;
}

.portal-person label {
  font-size: 12px;
  font-weight: 650;
  color: var(--wb-ink-secondary);
  margin: 0;
}

.portal-person p[role="status"]:empty { display: none; }
.portal-person p[role="status"] { margin: 0; font-size: 12px; color: var(--wb-emerald); }

/* Records / timeline rows */
.portal-records { display: grid; gap: 12px; }

.portal-record {
  border: 1px solid var(--wb-border);
  border-radius: var(--wb-radius-md);
  padding: 16px 18px;
  background: var(--wb-surface);
  display: grid;
  gap: 10px;
}

.portal-record-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 10px;
}

.portal-record-head h3 { margin: 0; font-size: 14.5px; font-weight: 700; color: var(--wb-ink); }
.portal-record-head small { display: block; font-size: 12px; color: var(--wb-ink-muted); margin-block-start: 3px; font-variant-numeric: tabular-nums; }
.portal-record > p { margin: 0; font-size: 13px; color: var(--wb-ink-secondary); }
.portal-record details summary { cursor: pointer; font-size: 12.5px; font-weight: 600; color: var(--wb-primary); }
.portal-record details p { font-size: 12.5px; margin: 6px 0 0; color: var(--wb-ink-secondary); }
.portal-record [role="alert"]:empty,
.portal-record [role="status"]:empty { display: none; }

.portal-record-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 10px 16px;
}

/* Progress bars */
.portal-progress { display: grid; gap: 5px; min-inline-size: 0; }
.portal-progress-meta { display: flex; justify-content: space-between; gap: 8px; font-size: 12px; color: var(--wb-ink-muted); }
.portal-progress-meta b { color: var(--wb-ink); font-variant-numeric: tabular-nums; font-weight: 650; }
.portal-progress-track { block-size: 7px; border-radius: 99px; background: #e9eee8; overflow: clip; }
.portal-progress-track > span { display: block; block-size: 100%; border-radius: inherit; background: var(--wb-primary); }
.portal-progress-teal .portal-progress-track > span { background: #2a8a6c; }
.portal-progress-gold .portal-progress-track > span { background: #c39058; }
.portal-progress-plum .portal-progress-track > span { background: #7a58ad; }

/* Form layouts */
.portal-form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 14px 16px;
  align-items: end;
}

.portal-field { display: grid; gap: 6px; min-inline-size: 0; }
.portal-field label { font-size: 12px; font-weight: 650; color: var(--wb-ink-secondary); margin: 0; }
.portal-field select,
.portal-field input { inline-size: 100%; }

.portal-callout {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 13px 16px;
  border-radius: var(--wb-radius-sm);
  font-size: 13px;
  line-height: 1.65;
  margin-block: 0 16px;
  background: var(--wb-blue-soft);
  border: 1px solid #cfe3ec;
  color: #1d4c5c;
}

.portal-callout.is-warm { background: var(--wb-accent-soft); border-color: #ead8bb; color: #74532a; }
.portal-callout.is-muted { background: var(--wb-surface-muted); border-color: var(--wb-border); color: var(--wb-ink-secondary); }
.portal-callout svg { inline-size: 18px; block-size: 18px; flex-shrink: 0; margin-block-start: 2px; }
.portal-callout p { margin: 0; }
.portal-callout a { color: inherit; font-weight: 650; }

/* Teacher trial block */
.portal-trial-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 14px;
}

.portal-trial-slot {
  border: 1px solid var(--wb-border);
  border-radius: var(--wb-radius-md);
  padding: 16px;
  background: var(--wb-surface-subtle);
  display: grid;
  gap: 10px;
  align-content: start;
}

.portal-trial-slot h3 { margin: 0; font-size: 14px; font-weight: 700; color: var(--wb-ink); display: flex; justify-content: space-between; gap: 8px; align-items: center; flex-wrap: wrap; }
.portal-trial-slot .portal-inline { display: flex; gap: 8px; flex-wrap: wrap; }
.portal-trial-slot .portal-inline select { flex: 1 1 180px; min-inline-size: 0; }
.portal-trial-slot .portal-done { margin: 0; font-size: 13px; color: var(--wb-emerald); font-weight: 600; }
.portal-trial-slot .portal-done a { color: inherit; }
#trial-action-error:empty { display: none; }
#trial-action-error { color: var(--wb-danger); font-size: 13px; margin: 12px 0 0; }

.portal-panel details > summary { cursor: pointer; font-weight: 650; color: var(--wb-primary); font-size: 13px; }
.portal-panel details[open] > summary { margin-block-end: 8px; }

/* Codes page overrides for legacy claim forms inside records */
.portal-record form { display: flex; flex-wrap: wrap; gap: 8px; align-items: end; margin: 0; }
.portal-record form label { font-size: 12px; font-weight: 650; color: var(--wb-ink-secondary); }
.portal-record form input[type="number"] { inline-size: 110px; }
.portal-record textarea { inline-size: 100%; font-family: ui-monospace, Consolas, monospace; }

@media (max-width: 760px) {
  .portal-panel { padding: 16px; }
  .portal-roster { grid-template-columns: 1fr; }
  .portal-record { padding: 14px; }
}