:root {
  --bg: #0f1419;
  --bg-card: #1a2332;
  --bg-hover: #243044;
  --border: rgba(255, 255, 255, 0.08);
  --text: #e8ecf1;
  --text-muted: #8b9cb3;
  --accent: #6366f1;
  --accent-hover: #818cf8;
  --success: #34d399;
  --warning: #fbbf24;
  --danger: #f87171;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
  --sidebar-w: 260px;
}

* { box-sizing: border-box; }

body.admin-app {
  margin: 0;
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.5;
}

.admin-shell {
  display: flex;
  min-height: 100vh;
}

.admin-sidebar {
  width: var(--sidebar-w);
  background: var(--bg-card);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
}

.admin-brand {
  padding: 24px 20px;
  border-bottom: 1px solid var(--border);
}

.admin-brand h1 {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #a5b4fc, #6366f1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.admin-brand span {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
  -webkit-text-fill-color: var(--text-muted);
}

.admin-nav {
  flex: 1;
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-height: 0;
}

.admin-nav a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  color: var(--text-muted);
  text-decoration: none;
  border-radius: 10px;
  font-size: 0.9rem;
  font-weight: 500;
  transition: background 0.15s, color 0.15s;
}

.admin-nav a:hover {
  background: var(--bg-hover);
  color: var(--text);
}

.admin-nav a.active {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.25), rgba(99, 102, 241, 0.1));
  color: #c7d2fe;
  border: 1px solid rgba(99, 102, 241, 0.35);
}

.admin-nav a.nav-logout {
  margin-top: auto;
  color: var(--text-muted);
}

.admin-nav a.nav-logout:hover {
  color: var(--danger);
  background: rgba(248, 113, 113, 0.1);
}

.admin-nav .nav-icon {
  width: 22px;
  text-align: center;
  font-size: 1.1rem;
  opacity: 0.9;
}

.admin-sidebar-footer {
  padding: 16px;
  border-top: 1px solid var(--border);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.admin-main {
  flex: 1;
  margin-left: var(--sidebar-w);
  padding: 32px 40px 48px;
  max-width: 1100px;
}

.admin-page-header {
  margin-bottom: 28px;
}

.admin-page-header h2 {
  margin: 0 0 8px;
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.admin-page-header p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.admin-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
}

.admin-card + .admin-card { margin-top: 20px; }

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.admin-app input[type="text"],
.admin-app input[type="search"],
.admin-app input[type="password"],
.admin-app input[type="email"],
.admin-app textarea,
.admin-app select {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  font-size: 0.95rem;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.admin-app input[type="text"]:focus,
.admin-app input[type="search"]:focus,
.admin-app input[type="password"]:focus,
.admin-app input[type="email"]:focus,
.admin-app textarea:focus,
.admin-app select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.admin-app textarea { min-height: 100px; resize: vertical; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  font-size: 0.9rem;
  font-weight: 600;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: transform 0.1s, box-shadow 0.15s;
}

.btn:active { transform: scale(0.98); }

.btn-primary {
  background: linear-gradient(135deg, var(--accent), #4f46e5);
  color: white;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--accent-hover), var(--accent));
}

.btn-secondary {
  background: var(--bg-hover);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-danger {
  background: rgba(248, 113, 113, 0.15);
  color: var(--danger);
  border: 1px solid rgba(248, 113, 113, 0.3);
}

.btn-sm { padding: 8px 14px; font-size: 0.8rem; }

.alert {
  padding: 14px 16px;
  border-radius: 10px;
  font-size: 0.9rem;
  margin-bottom: 20px;
}

.alert-success {
  background: rgba(52, 211, 153, 0.12);
  border: 1px solid rgba(52, 211, 153, 0.3);
  color: var(--success);
}

.alert-warning {
  background: rgba(251, 191, 36, 0.12);
  border: 1px solid rgba(251, 191, 36, 0.3);
  color: var(--warning);
}

.alert-error {
  background: rgba(248, 113, 113, 0.12);
  border: 1px solid rgba(248, 113, 113, 0.3);
  color: var(--danger);
}

.alert a { color: inherit; font-weight: 600; }

.connect-box .btn {
  text-decoration: none;
  margin-top: 12px;
}

.hidden { display: none !important; }

.search-hint {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin: 6px 0 0;
}

.product-preview {
  margin: 16px 0;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-align: center;
  background: var(--bg);
}

.product-preview img {
  max-width: 100%;
  max-height: 240px;
  object-fit: contain;
  border-radius: 8px;
}

.product-preview .preview-title {
  margin-top: 12px;
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* Reviews table */
.table-toolbar {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.table-toolbar input { flex: 1; min-width: 200px; }

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

.admin-table .col-check {
  width: 44px;
  text-align: center;
}

.admin-table input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
  cursor: pointer;
}

.table-wrap {
  overflow-x: auto;
  border-radius: 10px;
  border: 1px solid var(--border);
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.admin-table th {
  text-align: left;
  padding: 14px 16px;
  background: var(--bg);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-bottom: 1px solid var(--border);
}

.admin-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.admin-table tr:last-child td { border-bottom: none; }

.admin-table tbody tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

.stars-display {
  color: var(--warning);
  letter-spacing: 2px;
  white-space: nowrap;
}

.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  background: rgba(99, 102, 241, 0.2);
  color: #c7d2fe;
}

.stat-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: var(--bg);
  border-radius: 20px;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.stat-pill strong { color: var(--text); }

.admin-table .actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.admin-table input,
.admin-table textarea,
.admin-table select {
  padding: 8px 10px;
  font-size: 0.85rem;
}

.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-muted);
}

@media (max-width: 768px) {
  .admin-sidebar {
    width: 100%;
    height: auto;
    position: relative;
  }
  .admin-main {
    margin-left: 0;
    padding: 20px 16px;
  }
  .admin-shell { flex-direction: column; }
}