:root {
  --bg-page: #0a0d14;
  --bg-surface: #111622;
  --bg-elevated: #171e2e;
  --bg-hover: #1e273b;
  --border-subtle: rgba(148, 163, 184, 0.14);
  --border-strong: rgba(148, 163, 184, 0.26);
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent-primary: #38bdf8;
  --accent-strong: #0284c7;
  --accent-soft: rgba(56, 189, 248, 0.14);
  --status-ok: #34d399;
  --status-warn: #fbbf24;
  --status-err: #f87171;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

html[data-theme="light"] {
  --bg-page: #f8fafc;
  --bg-surface: #ffffff;
  --bg-elevated: #f1f5f9;
  --bg-hover: #e2e8f0;
  --border-subtle: rgba(15, 23, 42, 0.10);
  --border-strong: rgba(15, 23, 42, 0.20);
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --accent-primary: #0284c7;
  --accent-strong: #0369a1;
  --accent-soft: rgba(2, 132, 199, 0.10);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-page);
  color: var(--text-primary);
  line-height: 1.55;
  min-height: 100vh;
}

.mono {
  font-family: var(--font-mono);
}

.hidden {
  display: none !important;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  backdrop-filter: blur(12px);
}

.topbar-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0.85rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.brand-group {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 600;
  font-size: 1rem;
}

.brand-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-primary), #818cf8);
}

.brand-divider {
  color: var(--text-muted);
}

.page-badge {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent-primary);
  background: var(--accent-soft);
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
}

.top-nav {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.nav-link {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-sm);
  transition: background-color 0.15s ease, color 0.15s ease;
}

.nav-link:hover {
  color: var(--text-primary);
  background: var(--bg-elevated);
}

.nav-link.active {
  color: var(--accent-primary);
  background: var(--accent-soft);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.role-pill {
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--text-secondary);
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
}

.admin-layout {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1.75rem 1.5rem 3rem;
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 1.75rem;
  align-items: start;
}

.admin-sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  position: sticky;
  top: 4.75rem;
}

.sidebar-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.sidebar-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
  padding: 0 0.4rem;
}

.side-tab {
  appearance: none;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  text-align: left;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.side-tab:hover {
  background: var(--bg-elevated);
  color: var(--text-primary);
}

.side-tab.active {
  background: var(--accent-soft);
  color: var(--accent-primary);
  font-weight: 600;
}

.helper-copy {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
}

.admin-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  min-width: 0;
}

.access-banner {
  background: rgba(251, 191, 36, 0.10);
  border: 1px solid rgba(251, 191, 36, 0.35);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
}

.banner-title {
  font-weight: 600;
  color: var(--status-warn);
  margin-bottom: 0.25rem;
}

.banner-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.admin-section {
  display: none;
  flex-direction: column;
  gap: 1.25rem;
}

.admin-section.active {
  display: flex;
}

.section-header h1,
.section-header h2 {
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-top: 0.25rem;
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 1rem;
}

.kpi-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.15rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.kpi-label {
  font-size: 0.82rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.kpi-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
}

.kpi-meta {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.panel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 1.25rem;
}

.panel-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.panel-card h2,
.panel-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
}

.detail-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.detail-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 0.55rem;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.9rem;
}

.detail-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.detail-row dt {
  color: var(--text-secondary);
}

.detail-row dd {
  color: var(--text-primary);
  font-weight: 500;
  text-align: right;
}

.table-wrap {
  overflow-x: auto;
}

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

.data-table th,
.data-table td {
  padding: 0.7rem 0.85rem;
  text-align: left;
  border-bottom: 1px solid var(--border-subtle);
}

.data-table th {
  color: var(--text-secondary);
  font-weight: 600;
  background: var(--bg-elevated);
}

.empty-cell {
  text-align: center;
  color: var(--text-muted);
  padding: 1.25rem;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  align-items: end;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.field-label {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.text-input,
.select-input {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  padding: 0.55rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-family: var(--font-sans);
}

.text-input:focus,
.select-input:focus {
  outline: none;
  border-color: var(--accent-primary);
}

.form-actions {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex-wrap: wrap;
}

.top-gap {
  margin-top: 0.5rem;
}

.btn-primary,
.btn-secondary,
.btn-icon {
  appearance: none;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 0.86rem;
  font-weight: 600;
  padding: 0.52rem 0.95rem;
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

.btn-primary {
  background: var(--accent-strong);
  color: #ffffff;
}

.btn-primary:hover {
  background: var(--accent-primary);
  color: #0f172a;
}

.btn-secondary,
.btn-icon {
  background: var(--bg-elevated);
  border-color: var(--border-subtle);
  color: var(--text-primary);
}

.btn-secondary:hover,
.btn-icon:hover {
  background: var(--bg-hover);
  border-color: var(--border-strong);
}

.full-width {
  width: 100%;
  margin-top: 0.35rem;
}

.status-msg {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.guardrail-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.guardrail-list strong {
  color: var(--text-primary);
}

@media (max-width: 900px) {
  .admin-layout {
    grid-template-columns: 1fr;
  }

  .admin-sidebar {
    position: static;
  }
}