:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --border: #2a2d3a;
  --text: #e1e4ed;
  --text-muted: #8b8fa3;
  --primary: #6366f1;
  --primary-hover: #818cf8;
  --active: #22c55e;
  --pending: #f59e0b;
  --inactive: #ef4444;
  --font-mono: "SF Mono", "Fira Code", monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

/* Nav */
nav {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 1.5rem;
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  font-weight: 700;
  font-size: 1rem;
  color: var(--primary);
}

.nav-links {
  display: flex;
  gap: 1.25rem;
  align-items: center;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color 0.15s;
}

.nav-links a:hover { color: var(--text); }

/* Layout */
.container {
  max-width: 1200px;
  margin: 2rem auto;
  padding: 0 1.5rem;
}

/* Cards & Stats */
.stats-row {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin: 1rem 0 2rem;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem 1.5rem;
  min-width: 120px;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.stat-card.active { border-color: var(--active); }
.stat-card.pending { border-color: var(--pending); }
.stat-card.inactive { border-color: var(--inactive); }

.stat-value {
  font-size: 1.5rem;
  font-weight: 700;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
}

th, td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

th {
  color: var(--text-muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.mono {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  word-break: break-all;
}

/* Badges */
.badge {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.badge-active { background: rgba(34, 197, 94, 0.15); color: var(--active); }
.badge-pending { background: rgba(245, 158, 11, 0.15); color: var(--pending); }
.badge-inactive { background: rgba(239, 68, 68, 0.15); color: var(--inactive); }

/* Forms */
.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 0.6rem 0.75rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 0.875rem;
  font-family: var(--font-mono);
}

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

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

.form-row .form-group { flex: 1; min-width: 150px; }

/* Buttons */
.btn-primary {
  background: var(--primary);
  color: white;
  border: none;
  padding: 0.6rem 1.5rem;
  border-radius: 6px;
  font-size: 0.875rem;
  cursor: pointer;
  transition: background 0.15s;
}

.btn-primary:hover { background: var(--primary-hover); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-wide { width: 100%; padding: 0.75rem; font-size: 1rem; }

.btn-link {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 0.875rem;
  cursor: pointer;
  padding: 0;
}

.btn-link:hover { color: var(--text); }

/* Login */
.login-container {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2.5rem;
  width: 100%;
  max-width: 420px;
}

.login-card h1 {
  margin-bottom: 0.5rem;
  color: var(--primary);
}

.login-card p {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-bottom: 1.5rem;
}

.hint-text {
  font-size: 0.75rem !important;
  color: var(--text-muted) !important;
  margin-top: 1rem !important;
}

/* Errors */
.error-text {
  color: var(--inactive);
  font-size: 0.875rem;
}

/* Headings */
h2 { margin-bottom: 0.5rem; }
h3 { margin: 1.5rem 0 0.5rem; color: var(--text-muted); font-size: 0.875rem; text-transform: uppercase; letter-spacing: 0.05em; }

/* Grafana */
.grafana-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
  gap: 1.5rem;
  margin-top: 1rem;
}

.grafana-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  overflow: hidden;
}

.grafana-panel iframe {
  border-radius: 4px;
}

/* Empty state */
.empty-state {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 2rem;
  margin-top: 1rem;
}

.empty-state p { margin-bottom: 0.75rem; }

.empty-state details {
  margin-top: 1rem;
}

.empty-state summary {
  cursor: pointer;
  color: var(--primary);
  font-size: 0.875rem;
}

.empty-state pre {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1rem;
  margin-top: 0.75rem;
  overflow-x: auto;
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
}

.empty-state code {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  background: var(--bg);
  padding: 0.1rem 0.3rem;
  border-radius: 3px;
}

.hint-text a {
  color: var(--primary);
  text-decoration: none;
}

.hint-text a:hover { text-decoration: underline; }

.version-badge {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--border);
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  vertical-align: middle;
}