:root {
  --bg: #0b0f14;
  --bg-elevated: #121820;
  --bg-card: #161d27;
  --border: #2a3441;
  --text: #e8edf4;
  --muted: #8b9cb3;
  --accent: #3d8bfd;
  --accent-soft: rgba(61, 139, 253, 0.12);
  --ok: #3fb950;
  --warn: #d29922;
  --crit: #f85149;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
  --radius: 12px;
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  font-family: var(--font);
  background: radial-gradient(circle at top right, #152033 0%, var(--bg) 45%);
  color: var(--text);
  min-height: 100vh;
}

.app {
  max-width: 1440px;
  margin: 0 auto;
  padding: 20px 24px 40px;
}

.topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}

.topbar-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.toolbar-label {
  font-size: 12px;
  color: var(--muted);
}

.toolbar-select {
  background: var(--bg-elevated);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 10px;
  font-size: 13px;
}

.btn-secondary,
.btn-ghost {
  display: inline-block;
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 13px;
  text-decoration: none;
  border: 1px solid var(--border);
}

.btn-secondary {
  background: var(--accent-soft);
  color: #79b8ff;
  border-color: rgba(61, 139, 253, 0.35);
}

.btn-ghost {
  color: var(--muted);
  background: var(--bg-elevated);
}

.btn-secondary:hover,
.btn-ghost:hover {
  border-color: var(--accent);
}

button.btn-secondary,
button.btn-ghost {
  cursor: pointer;
  font-family: inherit;
}

.admin-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 480px;
  margin-top: 12px;
}

.admin-form label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 13px;
  color: var(--muted);
}

.admin-form input[type="text"],
.admin-form input[type="password"],
.admin-form input[type="number"],
.admin-form select,
.admin-form textarea {
  background: var(--bg-elevated);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 14px;
}

.key-row {
  display: flex;
  gap: 8px;
  align-items: center;
}
.key-row input { flex: 1; }
.tg-fields-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 4px 12px;
  margin-bottom: 8px;
}
@media (max-width: 700px) {
  .tg-fields-grid { grid-template-columns: 1fr; }
}

.check-row {
  flex-direction: row !important;
  align-items: center;
  gap: 8px !important;
  color: var(--text) !important;
}

#adminPanel .card { margin-bottom: 16px; }

.brand h1 {
  margin: 0;
  font-size: 22px;
  font-weight: 650;
  letter-spacing: -0.02em;
}
.brand p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  font-size: 13px;
}
.status-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--muted);
}
.status-pill.live .status-dot { background: var(--ok); box-shadow: 0 0 8px var(--ok); }
.status-pill.stale .status-dot { background: var(--warn); }
.status-pill.offline .status-dot { background: var(--crit); }

.meta-line {
  color: var(--muted);
  font-size: 12px;
  margin-top: 6px;
}

.insight {
  border-radius: var(--radius);
  padding: 14px 16px;
  margin-bottom: 18px;
  border: 1px solid var(--border);
  background: var(--bg-card);
}
.insight.normal { border-color: rgba(63, 185, 80, 0.35); background: rgba(63, 185, 80, 0.08); }
.insight.warning { border-color: rgba(210, 153, 34, 0.45); background: rgba(210, 153, 34, 0.1); }
.insight.critical { border-color: rgba(248, 81, 73, 0.45); background: rgba(248, 81, 73, 0.1); }
.insight strong { display: block; margin-bottom: 4px; font-size: 13px; }
.insight span { color: var(--muted); font-size: 13px; }

.grid {
  display: grid;
  gap: 16px;
}
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

@media (max-width: 1100px) {
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
}
.card h2, .card h3 {
  margin: 0 0 12px;
  font-size: 14px;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.kpi-value {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.1;
}
.kpi-unit {
  font-size: 14px;
  color: var(--muted);
  margin-left: 4px;
}
.kpi-sub {
  margin-top: 8px;
  font-size: 12px;
  color: var(--muted);
}
.trend-up { color: var(--ok); }
.trend-down { color: var(--crit); }
.trend-flat { color: var(--muted); }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 600;
}
.badge.normal { background: rgba(63, 185, 80, 0.15); color: var(--ok); }
.badge.warning { background: rgba(210, 153, 34, 0.15); color: var(--warn); }
.badge.critical { background: rgba(248, 81, 73, 0.15); color: var(--crit); }
.badge.unknown { background: rgba(139, 156, 179, 0.15); color: var(--muted); }

.sys-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 16px;
  font-size: 13px;
}
.card.kpi p {
  margin: 8px 0 0;
  font-size: 28px;
  font-weight: 650;
}
.sys-grid dt { color: var(--muted); }
.sys-grid dd { margin: 0; font-weight: 500; }

.chart-wrap {
  position: relative;
  height: 220px;
}
.chart-wrap canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.spark-chart-wrap {
  overflow: auto;
  border-radius: 10px;
  background: #0c1822;
  border: 1px solid var(--border);
}
.spark-chart {
  display: block;
  width: 100%;
  height: auto;
  max-height: 520px;
  object-fit: contain;
}

.stats-table, .log-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.stats-table th, .stats-table td,
.log-table th, .log-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  text-align: left;
}
.stats-table th, .log-table th {
  color: var(--muted);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: rgba(255, 255, 255, 0.02);
  position: sticky;
  top: 0;
}
.log-table tbody tr:hover { background: rgba(61, 139, 253, 0.06); }

.table-scroll {
  max-height: 420px;
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.chip {
  padding: 6px 10px;
  border-radius: 8px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  font-size: 12px;
}
.chip b { color: var(--accent); }

.section-title {
  margin: 22px 0 12px;
  font-size: 15px;
  font-weight: 600;
}

.footer-note {
  margin-top: 20px;
  color: var(--muted);
  font-size: 12px;
}

.checklist {
  margin: 10px 0 0;
  padding-left: 18px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}
.checklist code {
  color: var(--accent);
  font-size: 12px;
}

.source-real { color: #3fb950; font-weight: 600; }
.source-sim { color: #58a6ff; }