:root {
  --bg: #0f1419;
  --panel: #1a2129;
  --panel-2: #212a34;
  --border: #2e3a46;
  --text: #e6edf3;
  --muted: #8b98a5;
  --accent: #4da3ff;
  --ok: #3fb950;
  --warn: #d29922;
  --bad: #f85149;
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); min-height: 100vh; }
a { color: var(--accent); }
code { background: var(--panel-2); padding: 1px 5px; border-radius: 4px; font-size: 0.92em; }

.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 24px; border-bottom: 1px solid var(--border); background: var(--panel);
  position: sticky; top: 0; z-index: 10;
}
.topbar .brand { font-weight: 700; letter-spacing: 0.2px; font-size: 1.05em; }
.topbar .brand span { color: var(--accent); }
.topbar .who { color: var(--muted); font-size: 0.9em; display: flex; gap: 12px; align-items: center; }

/* nav tabs */
nav.tabs {
  display: flex; gap: 4px; padding: 0 24px; background: var(--panel);
  border-bottom: 1px solid var(--border); overflow-x: auto;
}
nav.tabs button {
  background: none; border: none; border-bottom: 2px solid transparent; border-radius: 0;
  color: var(--muted); padding: 11px 14px; font-size: 0.92em; font-weight: 600; cursor: pointer;
}
nav.tabs button.active { color: var(--text); border-bottom-color: var(--accent); }
nav.tabs button:hover { color: var(--text); }

main { max-width: 1080px; margin: 0 auto; padding: 24px; display: grid; gap: 20px; }
section.tab-page { display: none; }
section.tab-page.active { display: grid; gap: 20px; }

.card { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 18px 20px; }
.card h2 { margin: 0 0 4px; font-size: 1.05em; }
.card .sub { color: var(--muted); font-size: 0.85em; margin: 0 0 14px; }

/* overview stat cards */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 14px; }
.stat { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 14px 16px; }
.stat .num { font-size: 1.7em; font-weight: 700; }
.stat .lbl { color: var(--muted); font-size: 0.82em; margin-top: 2px; }
.stat .hint { font-size: 0.78em; color: var(--muted); margin-top: 6px; }

.badge { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 0.8em; font-weight: 600; white-space: nowrap; }
.badge.fresh, .badge.ready, .badge.on   { background: rgba(63,185,80,.15);  color: var(--ok); }
.badge.aging, .badge.generating-index, .badge.installed { background: rgba(210,153,34,.15); color: var(--warn); }
.badge.stale, .badge.unknown, .badge.revoked, .badge.no-agent { background: rgba(248,81,73,.15); color: var(--bad); }
.badge.off { background: rgba(139,152,165,.15); color: var(--muted); }
.badge.role { background: rgba(77,163,255,.15); color: var(--accent); }

.kv { display: grid; grid-template-columns: 180px 1fr; gap: 6px 16px; font-size: 0.92em; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; }

table { width: 100%; border-collapse: collapse; font-size: 0.9em; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); vertical-align: middle; }
th { color: var(--muted); font-weight: 500; font-size: 0.85em; }
tr:last-child td { border-bottom: none; }

button, .btn {
  background: var(--accent); color: #08111c; border: none; border-radius: 6px;
  padding: 8px 16px; font-weight: 600; cursor: pointer; font-size: 0.92em; text-decoration: none; display: inline-block;
}
button.secondary, .btn.secondary { background: var(--panel-2); color: var(--text); border: 1px solid var(--border); }
button.small { padding: 4px 10px; font-size: 0.82em; }
button.danger { background: rgba(248,81,73,.15); color: var(--bad); border: 1px solid rgba(248,81,73,.4); }
button:disabled { opacity: 0.5; cursor: not-allowed; }

input, select, textarea {
  background: var(--panel-2); border: 1px solid var(--border); color: var(--text);
  border-radius: 6px; padding: 8px 10px; font-size: 0.92em; width: 100%;
}
textarea { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; resize: vertical; line-height: 1.45; }
label { font-size: 0.85em; color: var(--muted); display: block; margin-bottom: 4px; }
.row { display: flex; gap: 12px; align-items: end; flex-wrap: wrap; }
.row > div { flex: 1; min-width: 140px; }

.error { color: var(--bad); font-size: 0.9em; margin-top: 10px; min-height: 1.2em; }
.notice { background: rgba(210,153,34,.08); border: 1px solid rgba(210,153,34,.35); color: var(--warn);
  border-radius: 8px; padding: 10px 14px; font-size: 0.88em; }
.notice.info { background: rgba(77,163,255,.08); border-color: rgba(77,163,255,.35); color: var(--accent); }
.token-box { background: var(--panel-2); border: 1px dashed var(--border); border-radius: 8px;
  padding: 12px 14px; font-family: Consolas, monospace; font-size: 0.95em; word-break: break-all; margin-top: 12px; }
.muted { color: var(--muted); }
.devgrade { font-size: 0.76em; color: var(--muted); border: 1px solid var(--border); border-radius: 4px; padding: 1px 6px; margin-left: 6px; vertical-align: middle; }

/* setup steps */
.steps { display: grid; gap: 12px; counter-reset: step; }
.step { display: flex; gap: 14px; background: var(--panel-2); border: 1px solid var(--border); border-radius: 8px; padding: 14px; }
.step .n { counter-increment: step; background: var(--accent); color: #08111c; min-width: 28px; height: 28px;
  border-radius: 50%; display: grid; place-items: center; font-weight: 700; }
.step h3 { margin: 0 0 4px; font-size: 0.98em; }
.step p { margin: 0; color: var(--muted); font-size: 0.88em; }

/* login */
.login-wrap { display: grid; place-items: center; min-height: 100vh; padding: 24px; }
.login-card { width: 100%; max-width: 420px; }
.login-card h1 { font-size: 1.3em; margin: 0 0 4px; }