:root {
  --bg: #f7f7f8;
  --fg: #1a1a1a;
  --card-bg: #ffffff;
  --border: #e0e0e0;
  --muted: #6b7280;
  --accent: #2563eb;
  --danger: #dc2626;
  --danger-bg: #fef2f2;
  --ok: #16a34a;
  --warn: #d97706;
  --mono: "SF Mono", "Menlo", "Consolas", monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14161a;
    --fg: #e5e7eb;
    --card-bg: #1c1f26;
    --border: #2b2f38;
    --muted: #9ca3af;
    --accent: #60a5fa;
    --danger: #f87171;
    --danger-bg: #2a1616;
    --ok: #4ade80;
    --warn: #fbbf24;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--fg);
}

header {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0.75rem 1.5rem;
  border-bottom: 1px solid var(--border);
  background: var(--card-bg);
}

header h1 {
  font-size: 1.1rem;
  margin: 0;
  font-family: var(--mono);
}

nav {
  display: flex;
  gap: 1rem;
}

nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
  padding: 0.25rem 0;
  border-bottom: 2px solid transparent;
}

nav a.active {
  color: var(--fg);
  border-bottom-color: var(--accent);
}

.badge {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 0.8rem;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  background: var(--border);
  color: var(--muted);
}

.badge.ok {
  background: var(--ok);
  color: #06210f;
}

.badge.off {
  background: var(--border);
  color: var(--muted);
}

main {
  padding: 1.5rem;
}

.tab.hidden {
  display: none;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

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

.card.wide {
  grid-column: 1 / -1;
}

.card h2 {
  font-size: 0.95rem;
  margin: 0 0 0.75rem;
  color: var(--muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

th,
td {
  text-align: left;
  padding: 0.4rem 0.5rem;
  border-bottom: 1px solid var(--border);
  font-family: var(--mono);
}

th {
  color: var(--muted);
  font-weight: 500;
}

tbody tr:last-child td {
  border-bottom: none;
}

.empty-row td {
  color: var(--muted);
  font-style: italic;
}

.button-row {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

button {
  font: inherit;
  padding: 0.4rem 0.9rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--accent);
  color: white;
  cursor: pointer;
}

button:hover {
  opacity: 0.9;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

button.secondary {
  background: transparent;
  color: var(--fg);
}

button.danger {
  background: var(--danger);
}

.danger-zone {
  border-color: var(--danger);
}

.danger-zone p {
  color: var(--muted);
  font-size: 0.85rem;
  margin: 0 0 0.75rem;
}

pre {
  background: var(--danger-bg);
  border: 1px solid var(--danger);
  border-radius: 6px;
  padding: 0.75rem;
  font-size: 0.8rem;
  overflow-x: auto;
  margin-top: 0.75rem;
}

pre.hidden {
  display: none;
}

.form-row {
  display: flex;
  align-items: end;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.form-row label {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-size: 0.8rem;
  color: var(--muted);
}

input {
  font: inherit;
  padding: 0.35rem 0.5rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--fg);
}

.pill {
  display: inline-block;
  padding: 0.1rem 0.5rem;
  border-radius: 999px;
  font-size: 0.75rem;
}

.pill.enabled {
  background: var(--ok);
  color: #06210f;
}

.pill.disabled {
  background: var(--border);
  color: var(--muted);
}