:root {
  --bg: #0f172a;
  --fg: #f8fafc;
  --muted: #94a3b8;
  --card: #1e293b;
  --border: #334155;
  --accent: #3b82f6;
  --accent-fg: #ffffff;
  --danger: #ef4444;
  --success: #22c55e;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family:
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    Roboto,
    sans-serif;
  line-height: 1.5;
}

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

.stack {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem;
  border-bottom: 1px solid var(--border);
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem;
  margin: 1rem 0;
}

h1,
h2,
h3 {
  margin: 0 0 1rem;
}

label {
  display: block;
  margin: 0.75rem 0 0.25rem;
  font-size: 0.875rem;
  color: var(--muted);
}

input[type='text'],
input[type='email'],
input[type='password'] {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--fg);
  font-size: 1rem;
}

button,
.btn {
  display: inline-block;
  padding: 0.6rem 1rem;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: var(--accent-fg);
  border-radius: 6px;
  font-size: 1rem;
  cursor: pointer;
  text-decoration: none;
}
button:hover,
.btn:hover {
  opacity: 0.9;
  text-decoration: none;
}
button.secondary,
.btn.secondary {
  background: transparent;
  color: var(--fg);
  border-color: var(--border);
}

.token {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.5rem 0.75rem;
  word-break: break-all;
  font-size: 0.875rem;
}

.error {
  color: var(--danger);
  margin: 0.5rem 0;
  font-size: 0.875rem;
}
.success {
  color: var(--success);
  margin: 0.5rem 0;
  font-size: 0.875rem;
}
.muted {
  color: var(--muted);
  font-size: 0.875rem;
}

.progress {
  width: 100%;
  height: 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
}
.progress > div {
  height: 100%;
  background: var(--accent);
}

.kv {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 0.5rem 1rem;
  align-items: start;
  margin: 0.5rem 0;
}
.kv .k {
  color: var(--muted);
  font-size: 0.875rem;
}

.row {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

/* ----------------------------------------------------------------------- */
/* Admin interface                                                          */
/* ----------------------------------------------------------------------- */

.admin-shell {
  display: flex;
  min-height: calc(100vh - 65px);
  align-items: stretch;
}

.admin-sidebar {
  width: 220px;
  flex: 0 0 220px;
  border-right: 1px solid var(--border);
  padding: 1.5rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.admin-brand {
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.02em;
}

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

.admin-nav-link {
  display: block;
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  color: var(--fg);
}
.admin-nav-link:hover {
  background: var(--card);
  text-decoration: none;
}
.admin-nav-link.active {
  background: var(--accent);
  color: var(--accent-fg);
}

.admin-sidebar-footer {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  border-top: 1px solid var(--border);
  padding-top: 1rem;
}
.admin-back {
  font-size: 0.875rem;
}

.admin-content {
  flex: 1 1 auto;
  padding: 2rem;
  min-width: 0;
}

.admin-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
@media (max-width: 800px) {
  .admin-shell {
    flex-direction: column;
  }
  .admin-sidebar {
    width: auto;
    flex: none;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .admin-sidebar-footer {
    margin-top: 0;
  }
  .admin-cols {
    grid-template-columns: 1fr;
  }
  .admin-content {
    padding: 1.25rem;
  }
}

/* KPI cards */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 0.75rem;
  margin: 1rem 0 1.5rem;
}
.kpi-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
}
.kpi-value {
  font-size: 1.5rem;
  font-weight: 700;
}
.kpi-label {
  color: var(--muted);
  font-size: 0.8rem;
  margin-top: 0.25rem;
}

/* Tables */
.admin-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
}
.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}
.admin-table th,
.admin-table td {
  text-align: left;
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.admin-table th {
  color: var(--muted);
  font-weight: 600;
  background: var(--card);
  white-space: nowrap;
}
.admin-table tr:last-child td {
  border-bottom: none;
}
.admin-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.02);
}
.admin-table code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.8rem;
  word-break: break-all;
}

/* Badges */
.badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-size: 0.75rem;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--muted);
  white-space: nowrap;
}
.badge-admin {
  background: rgba(59, 130, 246, 0.15);
  border-color: var(--accent);
  color: #93c5fd;
}
.badge-banned {
  background: rgba(239, 68, 68, 0.15);
  border-color: var(--danger);
  color: #fca5a5;
}
.badge-ok {
  background: rgba(34, 197, 94, 0.15);
  border-color: var(--success);
  color: #86efac;
}

/* Button variants */
.btn-sm {
  padding: 0.35rem 0.6rem;
  font-size: 0.8rem;
}
.btn-danger {
  background: var(--danger);
  border-color: var(--danger);
  color: #fff;
}
.btn-danger:hover {
  opacity: 0.9;
}
button:disabled,
.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

select {
  font-size: 1rem;
}

/* Sortable table headers */
.th-sort {
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
}
.th-sort:hover {
  color: var(--fg);
}
.th-sort .sort-ind {
  margin-left: 0.3rem;
  opacity: 0.5;
  font-size: 0.7rem;
}
.th-sort.sorted .sort-ind {
  opacity: 1;
  color: var(--accent);
}

/* Checkbox / selection column */
.admin-table th.col-check,
.admin-table td.col-check {
  width: 1%;
  white-space: nowrap;
  text-align: center;
}
.admin-table input[type='checkbox'] {
  width: auto;
  margin: 0;
  cursor: pointer;
  accent-color: var(--accent);
}
.admin-table tr.row-selected td {
  background: rgba(59, 130, 246, 0.08);
}

/* Bulk action bar */
.bulk-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin: 0 0 1rem;
  padding: 0.6rem 0.85rem;
  background: var(--card);
  border: 1px solid var(--accent);
  border-radius: 8px;
}
.bulk-bar .bulk-count {
  font-weight: 600;
  margin-right: 0.25rem;
}
.bulk-bar .spacer {
  flex: 1 1 auto;
}

.toolbar-actions {
  margin-left: auto;
  display: flex;
  gap: 0.5rem;
}