/* ─── Admin Settings - Light/Dark Mode ─── */

/* User list container */
#admin-users-list {
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  background: var(--bg-secondary);
}

.admin-list-header {
  padding: 12px 20px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-tertiary);
}

/* User row */
.admin-user-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background 0.15s;
}
.admin-user-row:last-child { border-bottom: none; }
.admin-user-row:hover { background: var(--bg-hover); }

.admin-user-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
}

.admin-user-info { flex: 1; min-width: 0; }
.admin-user-name {
  font-weight: 600;
  font-size: 14px;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.admin-user-email {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 2px;
}

/* User meta (last active, course count) */
.admin-user-meta {
  display: flex;
  gap: 16px;
  flex-shrink: 0;
}
.admin-user-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  color: var(--text-muted);
  white-space: nowrap;
}

.admin-user-role { flex-shrink: 0; }
.admin-user-arrow { flex-shrink: 0; color: var(--text-muted); }

/* Quick-filter tabs */
.admin-quick-tabs {
  display: flex;
  gap: 4px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border, rgba(255,255,255,0.08));
}
.admin-quick-tab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: 8px;
  border: 1px solid var(--border, rgba(255,255,255,0.1));
  background: transparent;
  color: var(--text-muted, #888);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
}
.admin-quick-tab:hover {
  border-color: rgba(255,255,255,0.2);
  color: var(--text-primary, #fff);
}
.admin-quick-tab.active {
  background: #ff643118;
  color: #ff6431;
  border-color: #ff643140;
  font-weight: 600;
}

.admin-banned-tag {
  font-size: 10px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 10px;
  background: #ef444420;
  color: #ef4444;
  border: 1px solid #ef444430;
  margin-left: 6px;
}

/* Overlay */
.admin-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

/* Panel */
.admin-panel {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 20px;
  width: 100%;
  max-width: 600px;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: 0 30px 80px rgba(0,0,0,0.3);
}

.admin-panel-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.admin-panel-title {
  font-weight: 700;
  font-size: 16px;
  color: var(--text-primary);
}
.admin-panel-subtitle {
  font-size: 12px;
  color: var(--text-muted);
}

.admin-close-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  border-radius: 8px;
  transition: background 0.15s;
}
.admin-close-btn:hover { background: var(--bg-hover); }

/* Sections */
.admin-panel-section {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
}

.admin-section-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Role buttons */
.admin-role-buttons {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.admin-role-btn {
  padding: 10px 18px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-primary);
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  transition: all 0.15s;
  display: flex;
  align-items: center;
  gap: 6px;
}
.admin-role-btn:hover { background: var(--bg-hover); }
.admin-role-btn.active {
  border-color: var(--role-color);
  background: color-mix(in srgb, var(--role-color) 10%, transparent);
  color: var(--role-color);
}
.admin-role-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  opacity: 0.3;
  transition: opacity 0.15s;
}
.admin-role-btn.active .admin-role-dot { opacity: 1; }

.admin-role-desc {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 8px;
}

/* Permissions */
.admin-perm-group { margin-bottom: 20px; }
.admin-perm-group:last-child { margin-bottom: 0; }

.admin-perm-group-title {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  font-weight: 600;
  font-size: 14px;
  color: var(--text-primary);
}

.admin-perm-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  margin-bottom: 4px;
  background: var(--bg-tertiary);
  border-radius: 10px;
  border: 1px solid var(--border);
}

.admin-perm-label {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1;
  cursor: pointer;
  font-size: 13px;
  color: var(--text-primary);
}

.admin-checkbox {
  accent-color: var(--accent);
  width: 16px;
  height: 16px;
  cursor: pointer;
}

.admin-scope-btn {
  font-size: 11px;
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s;
}
.admin-scope-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.admin-scope-list {
  margin-top: 4px;
  margin-left: 36px;
  padding: 8px 12px;
  background: var(--bg-tertiary);
  border-radius: 8px;
  border: 1px solid var(--border);
  margin-bottom: 4px;
}

.admin-scope-hint {
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.admin-scope-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 0;
  cursor: pointer;
  font-size: 12px;
  color: var(--text-primary);
}

.admin-perms-note {
  text-align: center;
  padding: 20px;
  color: var(--text-muted);
  font-style: italic;
}

/* Ban section */
.admin-ban-section { border-bottom: none; }

.admin-ban-active {
  background: #ef444410;
  border: 1px solid #ef444430;
  border-radius: 12px;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.admin-ban-title { font-size: 13px; font-weight: 600; color: #ef4444; }
.admin-ban-reason { font-size: 12px; color: var(--text-muted); margin-top: 4px; }

.admin-ban-inactive {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.admin-ban-hint { font-size: 12px; color: var(--text-muted); }

/* Buttons */
.admin-panel-footer {
  padding: 16px 24px 24px;
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

.admin-btn-primary {
  padding: 10px 28px;
  border: none;
  border-radius: 12px;
  background: var(--accent);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}
.admin-btn-primary:hover { background: var(--accent-hover); }
.admin-btn-primary:disabled { opacity: 0.6; cursor: not-allowed; }

.admin-btn-secondary {
  padding: 10px 24px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 14px;
  cursor: pointer;
  transition: all 0.15s;
}
.admin-btn-secondary:hover { background: var(--bg-hover); }

.admin-btn-danger-outline {
  padding: 8px 18px;
  border: 1px solid #ef4444;
  border-radius: 10px;
  background: transparent;
  color: #ef4444;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}
.admin-btn-danger-outline:hover { background: #ef444415; }

.admin-btn-danger-ghost {
  padding: 8px 18px;
  border: 1px solid #ef444450;
  border-radius: 10px;
  background: transparent;
  color: #ef4444;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  opacity: 0.7;
  transition: all 0.15s;
}
.admin-btn-danger-ghost:hover { opacity: 1; background: #ef444410; }

/* Stat cards */
.admin-stat-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px;
}
.admin-stat-label {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 500;
}
.admin-stat-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
}

/* Utility */
.admin-empty {
  padding: 40px;
  text-align: center;
  color: var(--text-muted);
}
.admin-loading {
  color: var(--text-muted);
  font-size: 13px;
}
.admin-denied {
  padding: 60px;
  text-align: center;
  color: var(--text-muted);
}
.admin-denied-title {
  font-size: 18px;
  font-weight: 600;
  margin: 16px 0 8px;
  color: var(--text-primary);
}

.admin-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-secondary);
  color: var(--text-primary);
  padding: 12px 24px;
  border-radius: 12px;
  font-size: 0.875rem;
  z-index: 3000;
  border: 1px solid var(--border);
  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
  animation: adminFadeIn 0.3s ease;
}

@keyframes adminFadeIn {
  from { opacity: 0; transform: translateX(-50%) translateY(10px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* Mobile */
@media (max-width: 640px) {
  .admin-role-buttons { flex-direction: column; }
  .admin-role-btn { justify-content: center; }
  .admin-panel { max-height: 90vh; border-radius: 16px; }
  .admin-stat-value { font-size: 22px; }
  .admin-ban-active, .admin-ban-inactive { flex-direction: column; gap: 10px; align-items: flex-start; }
  .admin-user-meta { display: none; }
  .admin-quick-tabs { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .admin-quick-tab { white-space: nowrap; }
}