/* ============================================================
   admin.css
   Layout admin panel — desain SaaS modern (Vercel/Linear style).
   ============================================================ */

/* ---------- AUTH (Login) ---------- */
.auth-shell {
  position: relative;
  min-height: 100vh;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1.25rem;
  overflow: hidden;
}

.auth-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(900px 500px at 50% -10%, var(--color-primary-soft), transparent 60%),
    radial-gradient(700px 400px at 90% 100%, var(--color-accent-soft), transparent 60%);
  z-index: 0;
}

.auth-card {
  position: relative;
  z-index: 1;
  width: min(440px, 100%);
  padding: 2.25rem 2rem 1.5rem;
  border-radius: 24px;
  background: var(--glass-bg-strong);
  border: 1px solid var(--glass-border);
  -webkit-backdrop-filter: blur(28px) saturate(180%);
  backdrop-filter: blur(28px) saturate(180%);
  box-shadow: var(--glass-shadow-strong);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.auth-brand {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
}

.auth-logo {
  border-radius: 18px;
  object-fit: cover;
  flex-shrink: 0;
  margin-bottom: 0.3rem;
  background: var(--color-bg-soft);
  box-shadow: 0 16px 40px -12px var(--color-primary-glow),
              inset 0 0 0 1px rgba(255, 255, 255, 0.08),
              0 0 0 6px var(--color-primary-soft);
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

.auth-card:hover .auth-logo {
  transform: scale(1.04) rotate(-3deg);
}

.auth-title {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.auth-subtitle {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  margin: 0;
  font-weight: 500;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 0.95rem;
}

.auth-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: -0.2rem 0 0.2rem;
}

.auth-alert {
  padding: 0.7rem 0.85rem;
  border-radius: 12px;
  background: rgba(239, 68, 68, 0.10);
  color: var(--color-danger);
  border: 1px solid rgba(239, 68, 68, 0.20);
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.55rem;
  animation: fadeUp 0.3s ease;
}

.auth-hint {
  display: flex;
  align-items: flex-start;
  gap: 0.55rem;
  padding: 0.7rem 0.85rem;
  border-radius: 12px;
  background: var(--color-accent-soft);
  color: var(--color-accent-600);
  font-size: 0.8rem;
  line-height: 1.5;
  border: 1px solid color-mix(in srgb, var(--color-accent) 18%, transparent);
}

[data-theme="dark"] .auth-hint {
  color: var(--color-accent);
}

.auth-foot {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.7rem;
  padding-top: 0.6rem;
  border-top: 1px solid var(--glass-border-soft);
}

.auth-back {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.82rem;
  color: var(--color-text-muted);
  font-weight: 500;
  padding: 0.4rem 0.7rem;
  border-radius: 10px;
  transition: background 0.2s ease, color 0.2s ease;
}

.auth-back:hover {
  background: var(--color-primary-soft);
  color: var(--color-text);
}

.auth-copy {
  font-size: 0.74rem;
  color: var(--color-text-subtle);
  letter-spacing: 0.02em;
}

/* Login button states */
.login-btn-spinner {
  display: none;
}

.login-btn-label,
.login-btn-arrow {
  display: inline-flex;
  align-items: center;
}

#loginSubmit.is-loading .login-btn-label,
#loginSubmit.is-loading .login-btn-arrow {
  display: none;
}

#loginSubmit.is-loading .login-btn-spinner {
  display: inline-flex;
  align-items: center;
  animation: spin 1s linear infinite;
}

#loginSubmit.is-loading {
  pointer-events: none;
  opacity: 0.85;
}

/* ---------- Input with leading icon ---------- */
.input-leading {
  position: absolute;
  top: 50%;
  left: 1rem;
  transform: translateY(-50%);
  color: var(--color-text-subtle);
  display: inline-flex;
  align-items: center;
  pointer-events: none;
  z-index: 1;
}

.form-input.has-leading {
  padding-left: 2.6rem;
}

.form-input.has-action {
  padding-right: 2.8rem;
}

/* ---------- ADMIN TOPBAR ---------- */
.admin-layout {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.admin-topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: 64px;
  padding: 0 1.5rem;
  background: color-mix(in srgb, var(--glass-bg) 80%, transparent);
  -webkit-backdrop-filter: blur(18px) saturate(180%);
  backdrop-filter: blur(18px) saturate(180%);
  border-bottom: 1px solid var(--glass-border-soft);
}

.admin-topbar-left,
.admin-topbar-right {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.admin-topbar-right {
  gap: 0.85rem;
}

.brand-link {
  text-decoration: none;
  color: inherit;
}

.brand-link:hover {
  color: inherit;
}

.mobile-menu-btn {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  color: var(--color-text-muted);
  background: transparent;
  border: 1px solid var(--color-border);
  transition: background 0.2s ease, color 0.2s ease;
}

.mobile-menu-btn:hover {
  background: var(--color-primary-soft);
  color: var(--color-text);
}

.user-menu {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.35rem 0.5rem 0.35rem 0.35rem;
  border-radius: 14px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border-soft);
  transition: background 0.2s ease, border-color 0.2s ease;
}

.user-menu:hover {
  background: var(--color-bg-soft);
}

.user-avatar {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: var(--gradient-primary);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 16px -6px var(--color-primary-glow);
  flex-shrink: 0;
}

.user-meta {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.user-name {
  font-size: 0.85rem;
  font-weight: 600;
}

.user-role {
  font-size: 0.7rem;
  color: var(--color-text-subtle);
  letter-spacing: 0.02em;
}

@media (max-width: 720px) {
  .user-meta {
    display: none;
  }
  .user-menu {
    padding: 0.35rem;
  }
  .user-menu .btn span {
    display: none;
  }
}

/* ---------- ADMIN BODY (sidebar + main) ---------- */
.admin-body {
  display: grid;
  grid-template-columns: 248px 1fr;
  flex: 1;
  min-height: 0;
}

.admin-sidebar {
  position: sticky;
  top: 64px;
  height: calc(100vh - 64px);
  padding: 1.5rem 1rem 1.5rem;
  background: color-mix(in srgb, var(--glass-bg) 50%, transparent);
  border-right: 1px solid var(--glass-border-soft);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  overflow-y: auto;
}

.admin-nav {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.admin-nav-title {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-subtle);
  padding: 0.6rem 0.75rem 0.3rem;
  font-weight: 700;
}

.admin-nav-item {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.65rem 0.85rem;
  border-radius: 10px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--color-text-muted);
  background: transparent;
  border: 1px solid transparent;
  text-align: left;
  width: 100%;
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
  cursor: pointer;
}

.admin-nav-item:hover {
  background: var(--color-primary-soft);
  color: var(--color-text);
}

.admin-nav-item.is-active {
  background: var(--color-primary-soft);
  color: var(--color-primary);
  font-weight: 600;
  border-color: color-mix(in srgb, var(--color-primary) 20%, transparent);
}

.admin-nav-item svg {
  flex-shrink: 0;
}

.sidebar-section {
  margin-top: 0.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--glass-border-soft);
}

.sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(8, 14, 32, 0.55);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
  z-index: 90;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.sidebar-backdrop.is-visible {
  opacity: 1;
  pointer-events: all;
}

/* ---------- ADMIN CONTENT ---------- */
.admin-content {
  padding: 1.75rem 2rem 3rem;
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
}

.admin-pane {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.page-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 0.25rem;
}

.page-title {
  font-size: 1.85rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  margin: 0;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-subtitle {
  margin: 0.35rem 0 0;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.page-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

/* ---------- STAT CARDS ---------- */
.stat-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.stat-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem 1.4rem;
  border-radius: 18px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border-soft);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  backdrop-filter: blur(20px) saturate(180%);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.2s ease;
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: "";
  position: absolute;
  top: -40%;
  right: -20%;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: var(--color-primary-soft);
  filter: blur(40px);
  opacity: 0.5;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

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

.stat-card-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: var(--color-primary-soft);
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}

.stat-card-accent .stat-card-icon {
  background: var(--color-accent-soft);
  color: var(--color-accent-600);
}

.stat-card-accent::before {
  background: var(--color-accent-soft);
}

.stat-card-success .stat-card-icon {
  background: rgba(16, 185, 129, 0.14);
  color: var(--color-success);
}

.stat-card-success::before {
  background: rgba(16, 185, 129, 0.12);
}

.stat-card-warning .stat-card-icon {
  background: rgba(245, 158, 11, 0.16);
  color: var(--color-warning);
}

.stat-card-warning::before {
  background: rgba(245, 158, 11, 0.12);
}

.stat-card-body {
  display: flex;
  flex-direction: column;
  position: relative;
  z-index: 1;
}

.stat-card-value {
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.05;
  color: var(--color-text);
}

.stat-card-label {
  font-size: 0.78rem;
  color: var(--color-text-subtle);
  font-weight: 500;
  margin-top: 0.3rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* ---------- ADMIN PANEL ---------- */
.admin-panel {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border-soft);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  backdrop-filter: blur(20px) saturate(180%);
  border-radius: 20px;
  padding: 1.5rem;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.panel-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0;
  letter-spacing: -0.01em;
}

.panel-desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin: 0.2rem 0 0;
}

/* ---------- ACTION GRID (quick actions) ---------- */
.action-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0.85rem;
}

.quick-action {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 1rem 1.1rem;
  border-radius: 14px;
  background: var(--color-bg-soft);
  border: 1px solid var(--color-border-strong);
  text-align: left;
  width: 100%;
  cursor: pointer;
  transition: transform 0.22s cubic-bezier(0.22, 1, 0.36, 1),
              border-color 0.2s ease, background 0.2s ease, box-shadow 0.25s ease;
  position: relative;
  overflow: hidden;
}

.quick-action:hover {
  transform: translateY(-2px);
  border-color: var(--color-primary);
  background: var(--glass-bg-strong);
  box-shadow: var(--glass-shadow-soft);
}

.quick-action:active {
  transform: translateY(0) scale(0.99);
}

.quick-action-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--color-primary-soft);
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.3s ease;
}

.quick-action:hover .quick-action-icon {
  transform: scale(1.06) rotate(-4deg);
}

.quick-action-icon-danger {
  background: rgba(239, 68, 68, 0.12);
  color: var(--color-danger);
}

.quick-action-text {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.quick-action-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
}

.quick-action-sub {
  font-size: 0.75rem;
  color: var(--color-text-subtle);
  margin-top: 0.1rem;
}

/* ---------- CLASSES LIST ---------- */
.classes-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.class-item {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.85rem 1rem;
  border-radius: 14px;
  background: var(--color-bg-soft);
  border: 1px solid var(--color-border-strong);
  transition: border-color 0.2s ease, 0.2s ease, transform 0.22s ease;
  position: relative;
}

.class-item-avatar {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
  color: #fff;
  flex-shrink: 0;
  background: var(--gradient-primary);
}

.class-item-avatar.alt-1 { background: linear-gradient(135deg, #2563EB, #06B6D4); }
.class-item-avatar.alt-2 { background: linear-gradient(135deg, #F97316, #F59E0B); }
.class-item-avatar.alt-3 { background: linear-gradient(135deg, #8B5CF6, #EC4899); }
.class-item-avatar.alt-4 { background: linear-gradient(135deg, #10B981, #06B6D4); }

.class-item-info {
  flex: 1;
  min-width: 0;
}

.class-item-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.class-item-meta {
  font-size: 0.78rem;
  color: var(--color-text-subtle);
  margin-top: 0.2rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.class-item-meta-sep {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--color-text-subtle);
  opacity: 0.6;
}

.class-item-status {
  flex-shrink: 0;
}

.class-item-actions {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  flex-shrink: 0;
}

.class-item-actions .icon-btn {
  width: 32px;
  height: 32px;
  border-radius: 9px;
}

.class-item-actions .icon-btn svg {
  width: 15px;
  height: 15px;
}

.class-item-actions .icon-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
  pointer-events: none;
}

.class-item-actions .icon-btn.is-danger:hover {
  background: rgba(239, 68, 68, 0.14);
  color: var(--color-danger);
}

.class-item-empty {
  padding: 3rem 1.5rem;
  text-align: center;
  color: var(--color-text-subtle);
}

/* ---------- EMPTY STATE ---------- */
.empty-state {
  padding: 3rem 1.5rem;
  text-align: center;
  color: var(--color-text-subtle);
}

.empty-state-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 1rem;
  border-radius: 18px;
  background: var(--color-primary-soft);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.empty-state-title {
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.3rem;
}

/* ---------- SEARCH BOX ---------- */
.search-box {
  position: relative;
  flex: 1;
  min-width: 200px;
  max-width: 320px;
}

.search-box input {
  width: 100%;
  height: 40px;
  padding: 0 1rem 0 2.4rem;
  border-radius: 10px;
  background: var(--color-bg-soft);
  border: 1px solid var(--color-border-strong);
  color: var(--color-text);
  font-size: 0.88rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.search-box input:focus {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-focus);
  outline: none;
}

.search-box .search-icon {
  position: absolute;
  top: 50%;
  left: 0.8rem;
  transform: translateY(-50%);
  color: var(--color-text-subtle);
  pointer-events: none;
}

/* ---------- SETTINGS ---------- */
.settings-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: 1fr;
}

@media (min-width: 980px) {
  .settings-grid {
    grid-template-columns: 1.4fr 1fr;
  }
  .danger-zone {
    grid-column: 1 / -1;
  }
}

.setting-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.danger-zone {
  border-color: rgba(239, 68, 68, 0.30);
}

.danger-zone .panel-title {
  color: var(--color-danger);
}

.detail-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.detail-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  font-size: 0.88rem;
  padding: 0.7rem 0.9rem;
  border-radius: 10px;
  background: var(--color-bg-soft);
  border: 1px solid var(--color-border);
}

.detail-list li span:first-child {
  color: var(--color-text-subtle);
  font-weight: 500;
}

.detail-list li span:last-child {
  font-weight: 600;
  color: var(--color-text);
  text-align: right;
  word-break: break-word;
}

/* ---------- Database (Supabase) status indicator ---------- */
.db-status {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  border: 1px solid var(--color-border-strong);
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  color: var(--color-text-muted);
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.db-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
  flex-shrink: 0;
}

.db-status-connected {
  background: rgba(16, 185, 129, 0.12);
  color: var(--color-success);
  border-color: rgba(16, 185, 129, 0.30);
  cursor: default;
}

.db-status-connected .db-status-dot {
  background: var(--color-success);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.20);
}

.db-status-disconnected {
  background: rgba(239, 68, 68, 0.12);
  color: var(--color-danger);
  border-color: rgba(239, 68, 68, 0.30);
}

.db-status-disconnected .db-status-dot {
  background: var(--color-danger);
}

.db-status-loading {
  background: rgba(59, 130, 246, 0.14);
  color: var(--color-primary);
  border-color: rgba(59, 130, 246, 0.30);
  cursor: default;
}

.db-status-loading .db-status-dot {
  background: var(--color-primary);
  animation: pulseGlow 1.2s ease-in-out infinite;
}

@media (max-width: 720px) {
  .db-status-text {
    display: none;
  }
  .db-status {
    padding: 0.4rem;
    width: 36px;
    height: 36px;
    justify-content: center;
  }
}

/* ---------- Database info panel ---------- */
.db-info-panel {
  background: linear-gradient(135deg,
    color-mix(in srgb, var(--color-primary) 6%, var(--glass-bg)),
    color-mix(in srgb, var(--color-accent) 4%, var(--glass-bg)));
  border-color: color-mix(in srgb, var(--color-primary) 18%, transparent);
}

/* ---------- Auto-save setup banner (kept for reference, unused) ---------- */
.auto-save-banner {
  display: flex;
  align-items: center;
  gap: 0.95rem;
  padding: 1rem 1.2rem;
  border-radius: 16px;
  background: linear-gradient(135deg,
    color-mix(in srgb, var(--color-primary) 14%, var(--glass-bg)),
    color-mix(in srgb, var(--color-accent) 8%, var(--glass-bg)));
  border: 1px solid color-mix(in srgb, var(--color-primary) 25%, transparent);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  backdrop-filter: blur(16px) saturate(180%);
  box-shadow: var(--glass-shadow-soft);
  position: relative;
  overflow: hidden;
  animation: fadeUp 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.auto-save-banner::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--gradient-primary);
}

.auto-save-banner.is-error {
  background: linear-gradient(135deg,
    rgba(239, 68, 68, 0.14),
    rgba(239, 68, 68, 0.06));
  border-color: rgba(239, 68, 68, 0.30);
}

.auto-save-banner.is-error::before {
  background: var(--color-danger);
}

.auto-save-banner-content {
  display: flex;
  align-items: center;
  gap: 0.95rem;
  flex: 1;
  flex-wrap: wrap;
}

.auto-save-banner-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--color-primary-soft);
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.auto-save-banner.is-error .auto-save-banner-icon {
  background: rgba(239, 68, 68, 0.12);
  color: var(--color-danger);
}

.auto-save-banner-text {
  flex: 1;
  min-width: 220px;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  font-size: 0.88rem;
  line-height: 1.45;
}

.auto-save-banner-text strong {
  font-size: 0.95rem;
  color: var(--color-text);
  font-weight: 700;
}

.auto-save-banner-text span {
  color: var(--color-text-muted);
}

.auto-save-banner-text code {
  background: var(--color-bg-soft);
  padding: 0.05rem 0.4rem;
  border-radius: 5px;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 0.78rem;
  color: var(--color-primary);
  border: 1px solid var(--color-border);
}

.auto-save-banner-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
  flex-wrap: wrap;
}

/* ---------- Auto-save settings panel ---------- */
.auto-save-status {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.2rem;
  border-radius: 14px;
  background: var(--color-bg-soft);
  border: 1px solid var(--color-border-strong);
  margin-bottom: 1.2rem;
  flex-wrap: wrap;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.auto-save-status.is-connected {
  background: rgba(16, 185, 129, 0.06);
  border-color: rgba(16, 185, 129, 0.25);
}

.auto-save-status.is-saving {
  background: rgba(59, 130, 246, 0.08);
  border-color: rgba(59, 130, 246, 0.25);
}

.auto-save-status.is-error {
  background: rgba(239, 68, 68, 0.06);
  border-color: rgba(239, 68, 68, 0.25);
}

.auto-save-status-main {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex: 1;
  min-width: 220px;
}

.auto-save-status-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-text-subtle);
  flex-shrink: 0;
  transition: background 0.2s ease;
}

.auto-save-status.is-connected .auto-save-status-dot {
  background: var(--color-success);
  box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.20);
}

.auto-save-status.is-saving .auto-save-status-dot {
  background: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.20);
  animation: pulseGlow 1.2s ease-in-out infinite;
}

.auto-save-status.is-error .auto-save-status-dot {
  background: var(--color-danger);
  box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.20);
}

.auto-save-status-label {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--color-text);
}

.auto-save-status-desc {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  margin-top: 0.15rem;
}

.auto-save-help {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.55;
}

.auto-save-help strong {
  color: var(--color-text);
  display: block;
  margin-bottom: 0.4rem;
}

.auto-save-help ol {
  margin: 0.4rem 0 1rem 1.2rem;
  padding: 0;
}

.auto-save-help li {
  margin-bottom: 0.3rem;
}

.auto-save-help code {
  background: var(--color-bg-soft);
  padding: 0.05rem 0.4rem;
  border-radius: 5px;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 0.78rem;
  color: var(--color-primary);
  border: 1px solid var(--color-border);
}

.auto-save-browser-note {
  margin: 0.8rem 0 0;
  padding: 0.7rem 0.9rem;
  border-radius: 10px;
  background: var(--color-accent-soft);
  color: var(--color-accent-600);
  border: 1px solid color-mix(in srgb, var(--color-accent) 20%, transparent);
  font-size: 0.82rem;
  line-height: 1.5;
}

[data-theme="dark"] .auto-save-browser-note {
  color: var(--color-accent);
}

.auto-save-browser-note code {
  background: rgba(255, 255, 255, 0.4);
  color: inherit;
  border-color: transparent;
}

[data-theme="dark"] .auto-save-browser-note code {
  background: rgba(255, 255, 255, 0.08);
}

@media (max-width: 640px) {
  .auto-save-banner-content {
    flex-direction: column;
    align-items: stretch;
  }
  .auto-save-banner-actions {
    justify-content: flex-end;
  }
  .auto-save-status {
    flex-direction: column;
    align-items: stretch;
  }
  .auto-save-actions {
    width: 100%;
  }
  .auto-save-actions .btn {
    width: 100%;
  }
}

/* ---------- Button states (loading) ---------- */
.btn-spinner {
  display: none;
  align-items: center;
  animation: spin 1s linear infinite;
}

#saveCredentialsBtn.is-loading .btn-label {
  display: none;
}

#saveCredentialsBtn.is-loading .btn-spinner {
  display: inline-flex;
}

#saveCredentialsBtn.is-loading {
  pointer-events: none;
  opacity: 0.85;
}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 980px) {
  .admin-body {
    grid-template-columns: 1fr;
  }
  .admin-sidebar {
    position: fixed;
    top: 64px;
    left: 0;
    width: 280px;
    height: calc(100vh - 64px);
    transform: translateX(-100%);
    transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1);
    z-index: 95;
    background: var(--glass-bg-strong);
    box-shadow: var(--glass-shadow-strong);
  }
  .admin-sidebar.is-open {
    transform: translateX(0);
  }
  .mobile-menu-btn {
    display: inline-flex;
  }
  .sidebar-backdrop {
    display: block;
  }
  .admin-content {
    padding: 1.25rem 1.1rem 3rem;
  }
  .page-title {
    font-size: 1.5rem;
  }
  .stat-card {
    padding: 1rem 1.1rem;
  }
  .stat-card-value {
    font-size: 1.4rem;
  }
  .class-item {
    flex-wrap: wrap;
  }
  .class-item-actions {
    order: 4;
    width: 100%;
    justify-content: flex-end;
    padding-top: 0.4rem;
    border-top: 1px dashed var(--color-border);
    margin-top: 0.4rem;
  }
}

@media (max-width: 560px) {
  .admin-topbar {
    padding: 0 0.85rem;
  }
  .action-grid {
    grid-template-columns: 1fr;
  }
  .page-header {
    flex-direction: column;
    align-items: flex-start;
  }
}