:root {
  color-scheme: light;
  --admin-sidebar-width: 272px;
  --admin-bg: #f5f7fb;
  --admin-surface: #ffffff;
  --admin-surface-soft: #f8fafc;
  --admin-text: #172033;
  --admin-muted: #64748b;
  --admin-border: #e5eaf1;
  --admin-primary: #2563eb;
  --admin-primary-soft: #eff6ff;
  --admin-danger: #dc2626;
  --admin-warning: #d97706;
  --admin-success: #059669;
  --admin-info: #0284c7;
  --admin-radius: 16px;
  --admin-radius-sm: 11px;
  --admin-shadow: 0 10px 30px rgba(15, 23, 42, .055);
  --admin-shadow-lg: 0 22px 60px rgba(15, 23, 42, .11);
  --admin-transition: 180ms ease;
}

* { box-sizing: border-box; }
html { min-width: 320px; background: var(--admin-bg); }
body.admin-ui {
  margin: 0;
  min-height: 100vh;
  color: var(--admin-text);
  background: var(--admin-bg);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Tahoma, Arial, sans-serif;
  font-size: 15px;
  line-height: 1.55;
  overflow-x: hidden;
}
body.admin-ui a { text-underline-offset: 2px; }
body.admin-ui img { max-width: 100%; }

/* Shell */
.admin-sidebar {
  position: fixed;
  inset-block: 0;
  inset-inline-end: 0;
  z-index: 1045;
  width: var(--admin-sidebar-width);
  display: flex;
  flex-direction: column;
  background: #0f172a;
  color: #e2e8f0;
  border-inline-start: 1px solid rgba(255,255,255,.06);
  box-shadow: -16px 0 50px rgba(15,23,42,.12);
  transition: transform var(--admin-transition);
}
.admin-sidebar__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 76px;
  padding: 16px 18px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.admin-sidebar__logo {
  inline-size: 42px;
  block-size: 42px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  border-radius: 13px;
  background: linear-gradient(135deg, #2563eb, #38bdf8);
  color: #fff;
  font-size: .82rem;
  font-weight: 800;
  letter-spacing: -.03em;
  box-shadow: 0 10px 25px rgba(37,99,235,.28);
}
.admin-sidebar__brand-copy { min-width: 0; }
.admin-sidebar__brand-title {
  margin: 0;
  color: #fff;
  font-size: .98rem;
  font-weight: 750;
}
.admin-sidebar__brand-subtitle {
  margin-top: 2px;
  color: #94a3b8;
  font-size: .72rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.admin-sidebar__close {
  display: none;
  margin-inline-start: auto;
  inline-size: 38px;
  block-size: 38px;
  border: 0;
  border-radius: 10px;
  background: rgba(255,255,255,.08);
  color: #fff;
}
.admin-sidebar__nav {
  flex: 1;
  overflow-y: auto;
  padding: 14px 10px;
  scrollbar-width: thin;
  scrollbar-color: #334155 transparent;
}
.admin-sidebar__section-label {
  padding: 8px 12px 6px;
  color: #64748b;
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .04em;
}
.admin-sidebar .nav { gap: 3px; }
.admin-sidebar .nav-link {
  position: relative;
  min-height: 44px;
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 10px 12px;
  border-radius: 11px;
  color: #cbd5e1;
  font-size: .88rem;
  font-weight: 560;
  text-decoration: none;
  transition: background var(--admin-transition), color var(--admin-transition), transform var(--admin-transition);
}
.admin-sidebar .nav-link:hover {
  color: #fff;
  background: rgba(255,255,255,.07);
}
.admin-sidebar .nav-link.active {
  color: #fff;
  background: linear-gradient(135deg, rgba(37,99,235,.95), rgba(2,132,199,.92));
  box-shadow: 0 9px 24px rgba(37,99,235,.24);
}
.admin-sidebar .nav-link i {
  inline-size: 22px;
  text-align: center;
  opacity: .9;
}
.admin-sidebar .nav-link .badge { margin-inline-start: auto; }
.admin-sidebar__footer {
  padding: 12px;
  border-top: 1px solid rgba(255,255,255,.08);
}
.admin-sidebar__user {
  display: flex;
  gap: 10px;
  align-items: center;
  padding: 10px;
  margin-bottom: 8px;
  border-radius: 12px;
  background: rgba(255,255,255,.045);
}
.admin-sidebar__avatar {
  inline-size: 34px;
  block-size: 34px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border-radius: 50%;
  background: rgba(96,165,250,.16);
  color: #93c5fd;
  font-weight: 800;
}
.admin-sidebar__email {
  min-width: 0;
  color: #cbd5e1;
  direction: ltr;
  text-align: left;
  font-size: .72rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.admin-sidebar-overlay {
  position: fixed;
  inset: 0;
  z-index: 1040;
  background: rgba(15,23,42,.46);
  backdrop-filter: blur(2px);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--admin-transition), visibility var(--admin-transition);
}
.admin-main {
  min-height: 100vh;
  margin-inline-end: var(--admin-sidebar-width);
  transition: margin var(--admin-transition);
}
.admin-topbar {
  position: sticky;
  inset-block-start: 0;
  z-index: 1025;
  min-height: 76px;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 13px clamp(16px, 2.4vw, 30px);
  background: rgba(255,255,255,.88);
  border-bottom: 1px solid var(--admin-border);
  backdrop-filter: blur(16px);
}
.admin-topbar__menu {
  display: none;
  inline-size: 42px;
  block-size: 42px;
  flex: 0 0 auto;
  border: 1px solid var(--admin-border);
  border-radius: 12px;
  background: #fff;
  color: var(--admin-text);
  box-shadow: 0 4px 14px rgba(15,23,42,.04);
}
.admin-topbar__title { min-width: 0; flex: 1; }
.admin-topbar h1 {
  margin: 0;
  font-size: clamp(1.18rem, 2vw, 1.55rem);
  font-weight: 780;
  letter-spacing: -.02em;
  color: #111827;
}
.admin-topbar__subtitle {
  margin-top: 2px;
  color: var(--admin-muted);
  font-size: .76rem;
}
.admin-topbar__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
}
.admin-content {
  width: min(100%, 1600px);
  margin-inline: auto;
  padding: clamp(16px, 2.4vw, 30px);
}

/* Bootstrap harmonization */
body.admin-ui .card {
  border: 1px solid var(--admin-border);
  border-radius: var(--admin-radius);
  background: var(--admin-surface);
  box-shadow: var(--admin-shadow);
  overflow: hidden;
  margin-bottom: 18px;
}
body.admin-ui .card-header {
  min-height: 54px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 14px 17px;
  border-bottom: 1px solid var(--admin-border);
  background: #fff;
}
body.admin-ui .card-header h1,
body.admin-ui .card-header h2,
body.admin-ui .card-header h3,
body.admin-ui .card-header h4,
body.admin-ui .card-header h5,
body.admin-ui .card-header h6 { margin: 0; font-weight: 720; }
body.admin-ui .card-body { padding: 17px; }
body.admin-ui .btn {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 8px 13px;
  border-radius: 11px;
  font-size: .86rem;
  font-weight: 650;
  box-shadow: none;
  transition: transform var(--admin-transition), box-shadow var(--admin-transition), filter var(--admin-transition);
}
body.admin-ui .btn:hover { transform: translateY(-1px); }
body.admin-ui .btn:active { transform: translateY(0); }
body.admin-ui .btn-primary { background: var(--admin-primary); border-color: var(--admin-primary); }
body.admin-ui .form-control,
body.admin-ui .form-select {
  min-height: 44px;
  border-color: #dce3ec;
  border-radius: 11px;
  background-color: #fff;
  color: var(--admin-text);
  font-size: .9rem;
  box-shadow: none;
}
body.admin-ui textarea.form-control { min-height: 110px; }
body.admin-ui .form-control:focus,
body.admin-ui .form-select:focus {
  border-color: #93c5fd;
  box-shadow: 0 0 0 4px rgba(37,99,235,.09);
}
body.admin-ui .form-label {
  margin-bottom: 6px;
  color: #334155;
  font-size: .82rem;
  font-weight: 650;
}
body.admin-ui .form-text { color: var(--admin-muted); font-size: .75rem; }
body.admin-ui .alert {
  border: 1px solid transparent;
  border-radius: 13px;
  box-shadow: 0 6px 20px rgba(15,23,42,.035);
}
body.admin-ui .badge { border-radius: 999px; font-weight: 650; }
body.admin-ui .modal-content { border: 0; border-radius: 18px; box-shadow: var(--admin-shadow-lg); }
body.admin-ui .modal-header,
body.admin-ui .modal-footer { border-color: var(--admin-border); }
body.admin-ui .dropdown-menu { border: 1px solid var(--admin-border); border-radius: 12px; box-shadow: var(--admin-shadow-lg); }

/* Tables */
body.admin-ui .table-responsive {
  border-radius: 12px;
  scrollbar-width: thin;
}
body.admin-ui .table {
  margin-bottom: 0;
  --bs-table-bg: transparent;
  --bs-table-striped-bg: #f8fafc;
  vertical-align: middle;
  font-size: .84rem;
}
body.admin-ui .table > :not(caption) > * > * {
  padding: 11px 12px;
  border-bottom-color: #edf1f6;
}
body.admin-ui .table thead th {
  position: sticky;
  top: 0;
  z-index: 1;
  background: #f8fafc;
  color: #475569;
  font-size: .75rem;
  font-weight: 750;
  white-space: nowrap;
}
body.admin-ui .table tbody tr { transition: background var(--admin-transition); }
body.admin-ui .table tbody tr:hover { background: #f8fbff; }
body.admin-ui .sortable { cursor: pointer; user-select: none; }
body.admin-ui .sortable.sort-asc::after { content: "  ↑"; color: var(--admin-primary); }
body.admin-ui .sortable.sort-desc::after { content: "  ↓"; color: var(--admin-primary); }

/* KPI / dashboard */
body.admin-ui .stat-card,
body.admin-ui .stats-card {
  min-height: 126px;
  border: 0;
  color: #fff;
  overflow: hidden;
}
body.admin-ui .stat-card::before,
body.admin-ui .stats-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 15% 15%, rgba(255,255,255,.18), transparent 44%);
  pointer-events: none;
}
body.admin-ui .stat-card { position: relative; }
body.admin-ui .stat-card h2,
body.admin-ui .stats-card h4 { font-weight: 800; letter-spacing: -.02em; }
body.admin-ui .user-type-card {
  border: 1px solid var(--admin-border) !important;
  border-radius: 13px !important;
  background: var(--admin-surface-soft);
}
body.admin-ui canvas { max-width: 100%; }
body.admin-ui .alert-critical { color: #fff; background: linear-gradient(135deg, #b91c1c, #dc2626); border-color: transparent; }

/* Generic reusable page helpers */
.admin-grid { display: grid; gap: 16px; }
.admin-grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.admin-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.admin-grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.admin-summary-grid { display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:12px; margin-bottom:18px; }
.admin-summary-card { background:#fff; border:1px solid var(--admin-border); border-radius:14px; padding:15px; min-width:0; box-shadow:0 4px 16px rgba(15,23,42,.025); }
.admin-summary-card strong { display:block; font-size:1.12rem; overflow-wrap:anywhere; }
.admin-summary-card span { color:var(--admin-muted); font-size:.78rem; }
.admin-section-title { font-size:1rem; font-weight:750; margin:0; }
.admin-section-subtitle { color:var(--admin-muted); font-size:.8rem; margin-top:4px; line-height:1.55; }
.admin-empty {
  padding: 40px 20px;
  text-align: center;
  color: var(--admin-muted);
}
.admin-empty i { margin-bottom: 12px; opacity: .45; }
.admin-code,
.admin-mono { font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; direction:ltr; text-align:left; }
.admin-truncate { max-width: 420px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.admin-info-box { padding:12px 14px; border-radius:12px; background:#eff6ff; color:#1e40af; font-size:.82rem; line-height:1.6; }
.admin-save-bar { position:sticky; bottom:10px; z-index:20; margin-top:18px; padding:11px; border:1px solid var(--admin-border); border-radius:14px; background:rgba(255,255,255,.94); backdrop-filter:blur(10px); box-shadow:0 10px 30px rgba(15,23,42,.1); }

/* Settings page */
.settings-grid { display:grid; grid-template-columns:repeat(12,minmax(0,1fr)); gap:18px; }
.span-6 { grid-column:span 6; }
.span-12 { grid-column:span 12; }
.settings-card { overflow:hidden; }
.settings-card .card-header { padding:17px 20px; }
.settings-card .card-body { padding:20px; }
.section-title { font-size:1rem; font-weight:750; margin:0; }
.section-subtitle { color:var(--admin-muted); font-size:.82rem; margin-top:4px; line-height:1.55; }
.summary-grid { display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:12px; margin-bottom:18px; }
.summary-card { background:#fff; border:1px solid var(--admin-border); border-radius:14px; padding:15px; min-width:0; }
.summary-card strong { display:block; font-size:1.12rem; overflow-wrap:anywhere; }
.summary-card span { color:var(--admin-muted); font-size:.78rem; }
.key-row { display:grid; grid-template-columns:minmax(180px,220px) 1fr; gap:16px; padding:16px 0; border-bottom:1px solid #eef2f7; }
.key-row:last-child { border-bottom:0; }
.mask { font-family:ui-monospace,SFMono-Regular,Menlo,monospace; direction:ltr; text-align:left; letter-spacing:.08em; }
.api-replace { min-height:76px !important; font-family:ui-monospace,SFMono-Regular,Menlo,monospace; direction:ltr; text-align:left; }
.model-suggestions { display:flex; flex-wrap:wrap; gap:6px; margin-top:7px; }
.model-suggestions code { padding:4px 7px; border-radius:6px; background:#f1f5f9; color:#334155; font-size:.72rem; }
.info-box { padding:12px 14px; border-radius:12px; background:#eff6ff; color:#1e40af; font-size:.82rem; line-height:1.6; }
.save-bar { position:sticky; bottom:10px; z-index:20; margin-top:18px; padding:11px; border:1px solid var(--admin-border); border-radius:14px; background:rgba(255,255,255,.94); backdrop-filter:blur(10px); box-shadow:0 10px 30px rgba(15,23,42,.1); }
.custom-value { max-width:420px; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; direction:ltr; text-align:left; }

/* Logs page */
.log-container {
  height: min(62vh, 720px);
  min-height: 360px;
  overflow: auto;
  background: #0b1220;
  border-radius: 0 0 14px 14px;
  overscroll-behavior: contain;
}
.log-line { padding: 9px 13px; border-bottom: 1px solid #1e293b; font-family: ui-monospace,SFMono-Regular,Menlo,monospace; font-size: 12px; direction:ltr; text-align:left; }
.log-line:hover { background: #111c30; }
.log-timestamp { color: #64748b; }
.log-level { font-weight: 800; margin: 0 8px; }
.log-message { color: #e2e8f0; overflow-wrap:anywhere; }
.log-context { color: #94a3b8; font-size: 11px; margin-top: 4px; white-space: pre-wrap; overflow-wrap:anywhere; }
.log-search { direction:rtl; text-align:right; }

/* Login uses the same design tokens but no sidebar */
body.admin-login-page {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: max(20px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right)) max(20px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));
  color: #e5e7eb;
  background:
    radial-gradient(circle at 15% 10%, rgba(37,99,235,.24), transparent 34%),
    radial-gradient(circle at 88% 82%, rgba(14,165,233,.13), transparent 34%),
    #070b13;
  font-family: system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Tahoma,Arial,sans-serif;
}
.admin-login-shell { width: min(100%, 430px); }
.admin-login-card {
  padding: 28px;
  border: 1px solid rgba(148,163,184,.17);
  border-radius: 22px;
  background: rgba(15,23,42,.94);
  box-shadow: 0 28px 80px rgba(0,0,0,.42);
  backdrop-filter: blur(18px);
}
.admin-login-brand { display:flex; align-items:center; gap:12px; margin-bottom:22px; }
.admin-login-brand h1 { margin:0; color:#fff; font-size:1.25rem; font-weight:780; }
.admin-login-brand p { margin:3px 0 0; color:#94a3b8; font-size:.84rem; }
.admin-login-note { margin-bottom:20px; padding:12px 14px; border-radius:12px; background:rgba(59,130,246,.08); border:1px solid rgba(96,165,250,.18); color:#bfdbfe; font-size:.82rem; }
.admin-login-error { margin-bottom:17px; padding:12px 14px; border-radius:12px; background:rgba(239,68,68,.1); border:1px solid rgba(248,113,113,.22); color:#fecaca; font-size:.84rem; }
body.admin-login-page label { display:block; margin-bottom:6px; color:#cbd5e1; font-size:.82rem; font-weight:650; }
body.admin-login-page input[type="email"],
body.admin-login-page input[type="password"] {
  width:100%;
  height:48px;
  padding:0 13px;
  border:1px solid rgba(148,163,184,.22);
  border-radius:12px;
  outline:none;
  color:#fff;
  background:rgba(2,6,23,.6);
  direction:ltr;
  text-align:left;
}
body.admin-login-page input:focus { border-color:#60a5fa; box-shadow:0 0 0 4px rgba(59,130,246,.12); }
.admin-login-field { margin-bottom:15px; }
.admin-login-remember { display:flex; align-items:center; gap:9px; margin:2px 0 19px; color:#cbd5e1; font-size:.83rem; cursor:pointer; }
.admin-login-remember input { inline-size:18px; block-size:18px; accent-color:#3b82f6; }
.admin-login-submit { width:100%; height:48px; border:0; border-radius:12px; color:#fff; background:linear-gradient(135deg,#2563eb,#0284c7); font:inherit; font-weight:750; box-shadow:0 14px 32px rgba(37,99,235,.25); }
.admin-login-footer { margin-top:16px; color:#64748b; text-align:center; font-size:.73rem; }

@media (max-width: 1199.98px) {
  .admin-grid--4 { grid-template-columns: repeat(2,minmax(0,1fr)); }
}

@media (max-width: 991.98px) {
  .admin-sidebar { transform: translateX(100%); width: min(86vw, 300px); }
  body.admin-sidebar-open .admin-sidebar { transform: translateX(0); }
  body.admin-sidebar-open .admin-sidebar-overlay { opacity:1; visibility:visible; }
  .admin-sidebar__close { display: grid; place-items:center; }
  .admin-main { margin-inline-end: 0; }
  .admin-topbar__menu { display: grid; place-items:center; }
  .admin-topbar { min-height: 68px; }
  .admin-topbar__actions { max-width: 55%; }
  .span-6 { grid-column:span 12; }
  .summary-grid, .admin-summary-grid { grid-template-columns:repeat(2,minmax(0,1fr)); }
  .admin-grid--2, .admin-grid--3 { grid-template-columns:1fr; }
  body.admin-ui .row > [class*="col-lg-"] { margin-bottom: 2px; }
}

@media (max-width: 767.98px) {
  .admin-content { padding: 14px 12px 24px; }
  .admin-topbar { padding-inline: 12px; align-items:flex-start; padding-block:12px; }
  .admin-topbar__title { padding-top:4px; }
  .admin-topbar__subtitle { display:none; }
  .admin-topbar__actions { max-width:none; width:auto; }
  .admin-topbar__actions .btn { min-height:38px; padding:7px 10px; }
  body.admin-ui .card { border-radius: 13px; margin-bottom:14px; }
  body.admin-ui .card-header { padding:12px 14px; }
  body.admin-ui .card-body { padding:14px; }
  body.admin-ui .row { --bs-gutter-x: .8rem; }
  body.admin-ui .table {
    display:block;
    width:100%;
    overflow-x:auto;
    -webkit-overflow-scrolling:touch;
    white-space:nowrap;
  }
  body.admin-ui .table > :not(caption) > * > * { padding:10px; }
  body.admin-ui .btn-group { display:flex; flex-wrap:wrap; gap:6px; }
  body.admin-ui .btn-group > .btn { border-radius:10px !important; }
  .key-row { grid-template-columns:1fr; }
  .log-container { min-height: 320px; height: 58vh; }
}

@media (max-width: 575.98px) {
  .admin-topbar { flex-wrap:wrap; }
  .admin-topbar__title { order:2; flex-basis:calc(100% - 56px); }
  .admin-topbar__actions { order:3; width:100%; justify-content:flex-start; overflow-x:auto; flex-wrap:nowrap; padding-bottom:2px; scrollbar-width:none; }
  .admin-topbar__actions::-webkit-scrollbar { display:none; }
  .admin-topbar__actions > * { flex:0 0 auto; }
  .summary-grid, .admin-summary-grid { grid-template-columns:1fr; }
  .admin-grid--4 { grid-template-columns:1fr; }
  .save-bar, .admin-save-bar { bottom:6px; }
  .admin-login-card { padding:22px 18px; border-radius:18px; }
  body.admin-ui .pagination { flex-wrap:wrap; gap:4px; }
  body.admin-ui .pagination .page-link { border-radius:8px !important; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior:auto !important; transition-duration:.01ms !important; animation-duration:.01ms !important; animation-iteration-count:1 !important; }
}