:root {
  --bg: #1a1a2e;
  --bg-card: #16213e;
  --bg-nav: #0f3460;
  --accent: #5865F2;
  --accent-hover: #4752C4;
  --green: #43B581;
  --red: #F04747;
  --yellow: #FAA61A;
  --text: #dcddde;
  --text-muted: #8e9297;
  --border: #2c2f47;
  --radius: 8px;
}

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

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
}

/* ── Sidebar ────────────────────────────────────────────── */
#nav {
  width: 220px;
  background: var(--bg-nav);
  padding: 20px 0;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 10;
  border-right: 1px solid var(--border);
}

#nav .brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 20px 20px;
  border-bottom: 1px solid var(--border);
  font-weight: 700;
  font-size: 15px;
  color: #fff;
}

#nav .brand span { font-size: 20px; }

#nav .nav-section {
  padding: 16px 12px 4px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

#nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 20px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: background 0.15s, color 0.15s;
  border-radius: 0;
}

#nav a:hover {
  background: rgba(255,255,255,0.06);
  color: #fff;
}

#nav a.active {
  background: rgba(88,101,242,0.18);
  color: var(--accent);
  border-right: 3px solid var(--accent);
}

#nav a .icon { font-size: 16px; width: 22px; text-align: center; }

#nav .nav-footer {
  margin-top: auto;
  padding: 12px 20px;
  border-top: 1px solid var(--border);
}

#nav .status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 6px;
}

#nav .status-dot.ok { background: var(--green); }
#nav .status-dot.err { background: var(--red); }
#nav .status-dot.warn { background: var(--yellow); }
#nav .status-dot.loading { background: var(--text-muted); animation: pulse 1s infinite; }

@keyframes pulse { 50% { opacity: 0.4; } }

/* ── Main Content ───────────────────────────────────────── */
#main {
  margin-left: 220px;
  padding: 32px 40px;
  flex: 1;
  min-height: 100vh;
}

h1 {
  font-size: 24px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 4px;
}

.subtitle {
  color: var(--text-muted);
  font-size: 14px;
  margin-bottom: 24px;
}

/* ── Cards ──────────────────────────────────────────────── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.card h3 {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.card .value {
  font-size: 28px;
  font-weight: 700;
  color: #fff;
}

.card .value.green { color: var(--green); }
.card .value.red { color: var(--red); }
.card .value.yellow { color: var(--yellow); }

.card .detail {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ── Tables ─────────────────────────────────────────────── */
.table-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 24px;
}

.table-card .table-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

.table-card .table-header h2 {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th {
  text-align: left;
  padding: 10px 20px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  background: rgba(0,0,0,0.15);
}

td {
  padding: 12px 20px;
  font-size: 14px;
  border-top: 1px solid var(--border);
}

tr:hover { background: rgba(255,255,255,0.02); }

/* ── Badges ─────────────────────────────────────────────── */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 600;
}

.badge.green { background: rgba(67,181,129,0.15); color: var(--green); }
.badge.red { background: rgba(240,71,71,0.15); color: var(--red); }
.badge.yellow { background: rgba(250,166,26,0.15); color: var(--yellow); }
.badge.blue { background: rgba(88,101,242,0.15); color: var(--accent); }

/* ── Buttons ────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border: none;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}

.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-danger { background: var(--red); color: #fff; }
.btn-danger:hover { background: #d83d3d; }
.btn-secondary { background: rgba(255,255,255,0.08); color: var(--text); }
.btn-secondary:hover { background: rgba(255,255,255,0.12); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ── Alerts ─────────────────────────────────────────────── */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 13px;
  margin-bottom: 16px;
}

.alert.success { background: rgba(67,181,129,0.12); border: 1px solid rgba(67,181,129,0.3); color: var(--green); }
.alert.error { background: rgba(240,71,71,0.12); border: 1px solid rgba(240,71,71,0.3); color: var(--red); }
.alert.info { background: rgba(88,101,242,0.12); border: 1px solid rgba(88,101,242,0.3); color: var(--accent); }

/* ── JSON Block ─────────────────────────────────────────── */
.json-block {
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  font-family: 'Cascadia Code', 'Fira Code', monospace;
  font-size: 12px;
  overflow-x: auto;
  white-space: pre-wrap;
  color: var(--text);
  margin-top: 12px;
}

/* ── Endpoint List ──────────────────────────────────────── */
.endpoint-list { list-style: none; }

.endpoint-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}

.endpoint-list li:last-child { border-bottom: none; }

.endpoint-list .method {
  display: inline-block;
  width: 52px;
  text-align: center;
  padding: 2px 0;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 700;
}

.endpoint-list .method.get { background: rgba(67,181,129,0.15); color: var(--green); }
.endpoint-list .method.post { background: rgba(88,101,242,0.15); color: var(--accent); }

.endpoint-list code {
  font-family: 'Cascadia Code', monospace;
  font-size: 13px;
  color: #fff;
}

.endpoint-list .desc { color: var(--text-muted); font-size: 13px; }

/* ── Spinner ────────────────────────────────────────────── */
.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.2);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }