/* ─── NX9-Auth Enterprise UI ─────────────────────────────────────────────── */

:root {
  --font: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 14px;

  --header-h: 56px;
  --sidebar-w: 240px;
  --sidebar-w-collapsed: 64px;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);

  --transition: 150ms ease;

  /* Light palette (GitHub / Linear inspired) */
  --bg: #f6f8fa;
  --bg-elevated: #ffffff;
  --bg-muted: #eef1f5;
  --bg-hover: #e8ecf1;
  --border: #d0d7de;
  --border-muted: #e6ebf0;

  --text: #1f2328;
  --text-secondary: #656d76;
  --text-muted: #8b949e;
  --text-inverse: #ffffff;

  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-soft: rgba(37, 99, 235, 0.1);

  --success: #1a7f37;
  --success-soft: rgba(26, 127, 55, 0.12);
  --warning: #9a6700;
  --warning-soft: rgba(154, 103, 0, 0.12);
  --danger: #cf222e;
  --danger-soft: rgba(207, 34, 46, 0.12);
  --info: #0969da;
  --info-soft: rgba(9, 105, 218, 0.12);

  --glass: rgba(255, 255, 255, 0.72);
  --glass-border: rgba(255, 255, 255, 0.4);
  --overlay: rgba(15, 23, 42, 0.45);

  --focus-ring: 0 0 0 3px rgba(37, 99, 235, 0.35);
}

[data-theme="dark"] {
  --bg: #0d1117;
  --bg-elevated: #161b22;
  --bg-muted: #21262d;
  --bg-hover: #2a3139;
  --border: #30363d;
  --border-muted: #21262d;

  --text: #e6edf3;
  --text-secondary: #aab2bb;
  --text-muted: #7d8590;
  --text-inverse: #0d1117;

  --accent: #58a6ff;
  --accent-hover: #79b8ff;
  --accent-soft: rgba(88, 166, 255, 0.15);

  --success: #3fb950;
  --success-soft: rgba(63, 185, 80, 0.15);
  --warning: #d29922;
  --warning-soft: rgba(210, 153, 34, 0.15);
  --danger: #f85149;
  --danger-soft: rgba(248, 81, 73, 0.15);
  --info: #58a6ff;
  --info-soft: rgba(88, 166, 255, 0.15);

  --glass: rgba(22, 27, 34, 0.78);
  --glass-border: rgba(48, 54, 61, 0.8);
  --overlay: rgba(0, 0, 0, 0.6);

  --focus-ring: 0 0 0 3px rgba(88, 166, 255, 0.4);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow: 0 4px 16px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.45);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0d1117;
    --bg-elevated: #161b22;
    --bg-muted: #21262d;
    --bg-hover: #2a3139;
    --border: #30363d;
    --border-muted: #21262d;
    --text: #e6edf3;
    --text-secondary: #aab2bb;
    --text-muted: #7d8590;
    --text-inverse: #0d1117;
    --accent: #58a6ff;
    --accent-hover: #79b8ff;
    --accent-soft: rgba(88, 166, 255, 0.15);
    --success: #3fb950;
    --success-soft: rgba(63, 185, 80, 0.15);
    --warning: #d29922;
    --warning-soft: rgba(210, 153, 34, 0.15);
    --danger: #f85149;
    --danger-soft: rgba(248, 81, 73, 0.15);
    --info: #58a6ff;
    --info-soft: rgba(88, 166, 255, 0.15);
    --glass: rgba(22, 27, 34, 0.78);
    --glass-border: rgba(48, 54, 61, 0.8);
    --overlay: rgba(0, 0, 0, 0.6);
    --focus-ring: 0 0 0 3px rgba(88, 166, 255, 0.4);
  }
}

/* ─── Reset ──────────────────────────────────────────────────────────────── */

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; min-height: 100%; }
body {
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
h1, h2, h3, h4 { margin: 0 0 0.5rem; font-weight: 600; letter-spacing: -0.01em; }
h1 { font-size: 1.5rem; }
h2 { font-size: 1.25rem; }
h3 { font-size: 1.05rem; }
p { margin: 0 0 0.75rem; }
code, kbd {
  font-family: var(--mono);
  font-size: 0.9em;
  background: var(--bg-muted);
  padding: 0.1em 0.35em;
  border-radius: 4px;
}

/* ─── Shell ──────────────────────────────────────────────────────────────── */

.app-shell {
  display: grid;
  grid-template-rows: var(--header-h) 1fr;
  grid-template-columns: var(--sidebar-w) 1fr;
  grid-template-areas:
    "header header"
    "sidebar main";
  min-height: 100vh;
}
.app-shell.sidebar-collapsed {
  grid-template-columns: var(--sidebar-w-collapsed) 1fr;
}

.app-header {
  grid-area: header;
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0 1rem;
  height: var(--header-h);
  background: var(--glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.app-header .brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  min-width: 140px;
}
.app-header .brand:hover { text-decoration: none; }
.app-header .brand-mark {
  width: 28px; height: 28px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), #7c3aed);
  display: grid; place-items: center;
  color: white; font-size: 13px; font-weight: 800;
}
.app-header .search {
  flex: 1;
  max-width: 420px;
}
.app-header .header-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.app-sidebar {
  grid-area: sidebar;
  border-right: 1px solid var(--border);
  background: var(--bg-elevated);
  padding: 0.75rem 0.5rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.nav-section {
  margin: 0.75rem 0.5rem 0.35rem;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}
.nav-link {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  text-decoration: none;
  transition: background var(--transition), color var(--transition);
}
.nav-link:hover {
  background: var(--bg-hover);
  color: var(--text);
  text-decoration: none;
}
.nav-link.active {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
}
.nav-link .icon { width: 18px; text-align: center; flex-shrink: 0; }

.app-main {
  grid-area: main;
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.main-inner {
  flex: 1;
  padding: 1.25rem 1.5rem 2rem;
  max-width: 1280px;
  width: 100%;
  margin: 0 auto;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 1rem;
}
.breadcrumb a { color: var(--text-secondary); }
.breadcrumb .sep { opacity: 0.5; }
.breadcrumb .current { color: var(--text); font-weight: 500; }

.app-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-muted);
  color: var(--text-muted);
  font-size: 12px;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ─── Auth layout ────────────────────────────────────────────────────────── */

.auth-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1.5rem;
  background:
    radial-gradient(ellipse at 20% 0%, var(--accent-soft), transparent 50%),
    radial-gradient(ellipse at 80% 100%, rgba(124, 58, 237, 0.08), transparent 45%),
    var(--bg);
}
.auth-card {
  width: 100%;
  max-width: 400px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 2rem;
}
.auth-card .logo-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}
.auth-card h1 { font-size: 1.35rem; margin-bottom: 0.25rem; }
.auth-card .subtitle { color: var(--text-secondary); margin-bottom: 1.5rem; }

/* ─── Components ─────────────────────────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.45rem 0.9rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  background: var(--bg-muted);
  color: var(--text);
  font-weight: 500;
  transition: background var(--transition), border-color var(--transition), opacity var(--transition);
  white-space: nowrap;
}
.btn:hover { background: var(--bg-hover); }
.btn:focus-visible { outline: none; box-shadow: var(--focus-ring); }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }
.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.btn-danger {
  background: var(--danger);
  color: #fff;
  border-color: var(--danger);
}
.btn-danger:hover { filter: brightness(1.05); }
.btn-ghost {
  background: transparent;
  border-color: transparent;
  color: var(--text-secondary);
}
.btn-ghost:hover { background: var(--bg-hover); color: var(--text); }
.btn-outline {
  background: transparent;
  border-color: var(--border);
}
.btn-sm { padding: 0.25rem 0.6rem; font-size: 12px; }
.btn-icon {
  width: 34px; height: 34px; padding: 0;
  border-radius: var(--radius-sm);
}

.form-group { margin-bottom: 1rem; }
.form-label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 0.35rem;
  color: var(--text);
}
.form-hint { font-size: 12px; color: var(--text-muted); margin-top: 0.3rem; }
.form-error { font-size: 12px; color: var(--danger); margin-top: 0.3rem; }
.form-control {
  width: 100%;
  padding: 0.5rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-elevated);
  color: var(--text);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-control:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: var(--focus-ring);
}
.form-control.is-invalid { border-color: var(--danger); }
.password-field {
  position: relative;
  display: flex;
  align-items: center;
}
.password-field .form-control { padding-right: 2.5rem; }
.password-field .toggle {
  position: absolute;
  right: 0.35rem;
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 0.35rem 0.5rem;
  border-radius: 4px;
}
.password-field .toggle:hover { color: var(--text); background: var(--bg-hover); }

.checkbox-row, .radio-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 1.1rem;
  border-bottom: 1px solid var(--border-muted);
}
.card-body { padding: 1.1rem; }
.card-footer {
  padding: 0.75rem 1.1rem;
  border-top: 1px solid var(--border-muted);
  background: var(--bg-muted);
  border-radius: 0 0 var(--radius) var(--radius);
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 0.85rem;
  margin-bottom: 1.25rem;
}
.stat-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  box-shadow: var(--shadow-sm);
}
.stat-card .label {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.stat-card .value {
  font-size: 1.65rem;
  font-weight: 700;
  margin-top: 0.25rem;
  letter-spacing: -0.02em;
}
.stat-card .hint { font-size: 12px; color: var(--text-secondary); margin-top: 0.25rem; }

.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
}
.page-header h1 { margin: 0; }
.page-header .desc { color: var(--text-secondary); margin: 0.25rem 0 0; }

.toolbar {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}
.toolbar .spacer { flex: 1; }
.toolbar .search-input { max-width: 280px; min-width: 180px; }

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-elevated);
}
table.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
table.data-table th,
table.data-table td {
  text-align: left;
  padding: 0.7rem 0.9rem;
  border-bottom: 1px solid var(--border-muted);
  vertical-align: middle;
}
table.data-table th {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-muted);
  white-space: nowrap;
  user-select: none;
}
table.data-table th.sortable { cursor: pointer; }
table.data-table th.sortable:hover { color: var(--text); }
table.data-table tr:last-child td { border-bottom: none; }
table.data-table tbody tr:hover { background: var(--bg-hover); }
table.data-table .actions {
  display: flex;
  gap: 0.35rem;
  justify-content: flex-end;
  white-space: nowrap;
}

.badge, .chip {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  background: var(--bg-muted);
  color: var(--text-secondary);
  border: 1px solid transparent;
}
.badge-success, .chip-success { background: var(--success-soft); color: var(--success); }
.badge-warning, .chip-warning { background: var(--warning-soft); color: var(--warning); }
.badge-danger, .chip-danger { background: var(--danger-soft); color: var(--danger); }
.badge-info, .chip-info { background: var(--info-soft); color: var(--info); }
.badge-accent { background: var(--accent-soft); color: var(--accent); }

.avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #7c3aed);
  color: #fff;
  display: grid; place-items: center;
  font-weight: 700; font-size: 12px;
  flex-shrink: 0;
}
.avatar-sm { width: 24px; height: 24px; font-size: 10px; }
.avatar-lg { width: 48px; height: 48px; font-size: 16px; }

.empty-state, .error-state {
  text-align: center;
  padding: 2.5rem 1.5rem;
  color: var(--text-secondary);
}
.empty-state .icon, .error-state .icon {
  font-size: 2rem;
  margin-bottom: 0.75rem;
  opacity: 0.7;
}
.error-state { color: var(--danger); }

.spinner {
  width: 20px; height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: inline-block;
}
.spinner-lg { width: 36px; height: 36px; border-width: 3px; }
@keyframes spin { to { transform: rotate(360deg); } }

.skeleton {
  background: linear-gradient(90deg, var(--bg-muted) 25%, var(--bg-hover) 50%, var(--bg-muted) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.2s infinite;
  border-radius: 4px;
  height: 1em;
}
@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.loading-center {
  display: grid;
  place-items: center;
  padding: 3rem;
  gap: 0.75rem;
  color: var(--text-muted);
}

/* ─── Modal / Dialog ─────────────────────────────────────────────────────── */

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: var(--overlay);
  display: grid;
  place-items: center;
  padding: 1rem;
  animation: fadeIn 120ms ease;
}
.modal {
  width: 100%;
  max-width: 480px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  max-height: 90vh;
  overflow: auto;
  animation: slideUp 150ms ease;
}
.modal-lg { max-width: 640px; }
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.15rem;
  border-bottom: 1px solid var(--border-muted);
}
.modal-body { padding: 1.15rem; }
.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  padding: 0.85rem 1.15rem;
  border-top: 1px solid var(--border-muted);
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

/* ─── Toast ──────────────────────────────────────────────────────────────── */

.toast-stack {
  position: fixed;
  top: calc(var(--header-h) + 0.75rem);
  right: 1rem;
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-width: 360px;
  width: calc(100% - 2rem);
  pointer-events: none;
}
.toast {
  pointer-events: auto;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 0.75rem 1rem;
  display: flex;
  gap: 0.65rem;
  align-items: flex-start;
  animation: slideUp 150ms ease;
}
.toast.success { border-left: 3px solid var(--success); }
.toast.error { border-left: 3px solid var(--danger); }
.toast.info { border-left: 3px solid var(--info); }
.toast.warning { border-left: 3px solid var(--warning); }
.toast .msg { flex: 1; font-size: 13px; }
.toast .close {
  background: none; border: none; color: var(--text-muted); padding: 0;
  line-height: 1; font-size: 16px;
}

/* ─── Dropdown / User menu ───────────────────────────────────────────────── */

.dropdown {
  position: relative;
}
.dropdown-menu {
  position: absolute;
  right: 0;
  top: calc(100% + 0.35rem);
  min-width: 200px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 0.35rem;
  z-index: 60;
}
.dropdown-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.5rem 0.7rem;
  border: none;
  background: transparent;
  border-radius: var(--radius-sm);
  color: var(--text);
  text-align: left;
  text-decoration: none;
  font-size: 13px;
}
.dropdown-item:hover {
  background: var(--bg-hover);
  text-decoration: none;
}
.dropdown-divider {
  height: 1px;
  background: var(--border-muted);
  margin: 0.3rem 0;
}

/* ─── Permission matrix ──────────────────────────────────────────────────── */

.perm-group {
  margin-bottom: 1.25rem;
}
.perm-group h3 {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}
.perm-list {
  display: grid;
  gap: 0.35rem;
}
.perm-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--border-muted);
  border-radius: var(--radius-sm);
  background: var(--bg-elevated);
}
.perm-item code { color: var(--accent); }

/* ─── Pagination ─────────────────────────────────────────────────────────── */

.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 0.75rem 0;
  font-size: 13px;
  color: var(--text-secondary);
}
.pagination .pages {
  display: flex;
  gap: 0.25rem;
}

/* ─── Grid helpers ───────────────────────────────────────────────────────── */

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}
@media (max-width: 800px) {
  .grid-2 { grid-template-columns: 1fr; }
  .app-shell {
    grid-template-columns: 1fr;
    grid-template-areas:
      "header"
      "main";
  }
  .app-sidebar {
    display: none;
  }
  .app-shell.mobile-nav-open .app-sidebar {
    display: flex;
    position: fixed;
    top: var(--header-h);
    left: 0; bottom: 0;
    width: min(280px, 85vw);
    z-index: 40;
    box-shadow: var(--shadow-lg);
  }
}

.stack { display: flex; flex-direction: column; gap: 0.75rem; }
.row { display: flex; align-items: center; gap: 0.5rem; }
.gap-1 { gap: 0.5rem; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }
.text-danger { color: var(--danger); }
.text-success { color: var(--success); }
.mono { font-family: var(--mono); font-size: 12px; }
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); border: 0;
}

/* ─── Alert ──────────────────────────────────────────────────────────────── */

.alert {
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  margin-bottom: 1rem;
  font-size: 13px;
}
.alert-error { background: var(--danger-soft); border-color: transparent; color: var(--danger); }
.alert-success { background: var(--success-soft); border-color: transparent; color: var(--success); }
.alert-warning { background: var(--warning-soft); border-color: transparent; color: var(--warning); }
.alert-info { background: var(--info-soft); border-color: transparent; color: var(--info); }

/* ─── Token reveal ───────────────────────────────────────────────────────── */

.secret-box {
  background: var(--bg-muted);
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  padding: 0.75rem;
  font-family: var(--mono);
  font-size: 12px;
  word-break: break-all;
  display: flex;
  gap: 0.5rem;
  align-items: flex-start;
}
.secret-box code { flex: 1; background: none; padding: 0; }

/* Toggle switch */
.toggle {
  position: relative;
  width: 40px;
  height: 22px;
  background: var(--bg-muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  cursor: pointer;
  transition: background var(--transition);
  flex-shrink: 0;
}
.toggle.on {
  background: var(--accent);
  border-color: var(--accent);
}
.toggle::after {
  content: "";
  position: absolute;
  top: 2px; left: 2px;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: #fff;
  transition: transform var(--transition);
  box-shadow: var(--shadow-sm);
}
.toggle.on::after { transform: translateX(18px); }