:root {
    --bg: #0f172a;
    --panel: #111827;
    --card: #1f2937;
    --text: #e5e7eb;
    --muted: #94a3b8;
    --line: #334155;
    --accent: #38bdf8;
    --good: #22c55e;
    --warn: #f59e0b;
    --bad: #ef4444;
}
* { box-sizing: border-box; }
html, body { margin: 0; font-family: Segoe UI, system-ui, sans-serif; background: var(--bg); color: var(--text); }
a { color: var(--accent); text-decoration: none; }
.shell { display: flex; min-height: 100vh; }
.sidebar { width: 230px; background: var(--panel); padding: 20px 16px; border-right: 1px solid var(--line); }
.brand { font-weight: 700; margin-bottom: 20px; }
.sidebar nav { display: flex; flex-direction: column; gap: 8px; }
.sidebar nav a { padding: 8px 10px; border-radius: 6px; color: var(--text); }
.sidebar nav a.active, .sidebar nav a:hover { background: var(--card); }
.nav-label { margin-top: 16px; color: var(--muted); font-size: 12px; text-transform: uppercase; }
.content { flex: 1; padding: 24px; overflow: auto; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; margin: 16px 0; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 14px; }
.card .label { color: var(--muted); font-size: 12px; }
.card .value { font-size: 28px; font-weight: 700; margin-top: 6px; }
table { width: 100%; border-collapse: collapse; background: var(--card); border-radius: 10px; overflow: hidden; }
th, td { padding: 10px 12px; border-bottom: 1px solid var(--line); text-align: left; font-size: 14px; }
th { color: var(--muted); font-weight: 600; }
.badge { padding: 3px 8px; border-radius: 999px; font-size: 12px; display: inline-block; }
.ok { background: #14532d; color: #bbf7d0; }
.warn { background: #78350f; color: #fde68a; }
.bad { background: #7f1d1d; color: #fecaca; }
form.stack { display: flex; flex-direction: column; gap: 10px; max-width: 420px; }
input, select, button, textarea { padding: 8px 10px; border-radius: 6px; border: 1px solid var(--line); background: #0b1220; color: var(--text); }
button, .btn { background: var(--accent); color: #082f49; font-weight: 600; cursor: pointer; display: inline-block; }
.filters { display: flex; gap: 8px; flex-wrap: wrap; margin: 12px 0; }
.login { max-width: 380px; margin: 12vh auto; background: var(--card); padding: 28px; border-radius: 12px; }
.token { background: #0b1220; padding: 10px; border-radius: 8px; word-break: break-all; }
.muted { color: var(--muted); }
.logout { margin-top: 24px; }
.logout button { width: 100%; background: transparent; color: var(--muted); }
.chart-box { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 12px; margin: 12px 0; }
@media (max-width: 800px) {
    .shell { flex-direction: column; }
    .sidebar { width: 100%; }
}