:root {
  --bg: #0B1220;
  --card: #1E293B;
  --border: #243447;
  --text: #F8FAFC;
  --muted: #94A3B8;
  --healthy: #22C55E;
  --warning: #F59E0B;
  --critical: #EF4444;
  --unknown: #64748B;
  --accent: #3B82F6;
  --header: #111827;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  min-height: 100%;
}

a { color: #93C5FD; }
button, input { font: inherit; }

.hidden { display: none !important; }

.st-HEALTHY { color: var(--healthy); }
.st-WARNING { color: var(--warning); }
.st-CRITICAL { color: var(--critical); }
.st-UNKNOWN { color: var(--unknown); }

.dot {
  display: inline-block;
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--unknown);
  margin-right: 0.35rem;
  vertical-align: middle;
}
.dot-HEALTHY { background: var(--healthy); }
.dot-WARNING { background: var(--warning); }
.dot-CRITICAL { background: var(--critical); }
.dot-UNKNOWN { background: var(--unknown); }

.banner {
  display: none;
  padding: 0.65rem 1rem;
  text-align: center;
  font-weight: 600;
}
.banner.visible { display: block; }
.banner.warn { background: #78350F; color: #FDE68A; }
.banner.crit { background: #7F1D1D; color: #FECACA; }

.app-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.85rem 1.25rem;
  background: var(--header);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 20;
}
.brand { font-size: 1.15rem; font-weight: 700; letter-spacing: 0.02em; }
.brand small { color: var(--muted); font-weight: 400; margin-left: 0.5rem; }
.header-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  color: #CBD5E1;
  font-size: 0.9rem;
}
.header-actions { display: flex; gap: 0.5rem; }
.btn {
  border: 0;
  border-radius: 0.35rem;
  padding: 0.45rem 0.9rem;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
}
.btn.ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}

.layout {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1rem 1.25rem 2rem;
}

.auth-card {
  max-width: 420px;
  margin: 4rem auto;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 1.5rem;
}
.auth-card h1 { margin: 0 0 0.4rem; font-size: 1.35rem; }
.auth-card p { color: var(--muted); margin: 0 0 1.25rem; }
.auth-card label { display: block; font-size: 0.85rem; color: var(--muted); margin: 0.75rem 0 0.3rem; }
.auth-card input {
  width: 100%;
  padding: 0.65rem 0.75rem;
  border-radius: 0.35rem;
  border: 1px solid var(--border);
  background: #0F172A;
  color: var(--text);
}
.auth-card .actions { margin-top: 1.25rem; display: flex; gap: 0.5rem; }
.auth-msg { min-height: 1.25rem; color: var(--warning); margin-top: 0.75rem; }

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}
.chip {
  border: 1px solid var(--border);
  background: #0F172A;
  color: var(--muted);
  border-radius: 999px;
  padding: 0.35rem 0.8rem;
  cursor: pointer;
  font-size: 0.85rem;
}
.chip.active { color: var(--text); border-color: var(--accent); background: #172554; }

.grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 0.75rem;
  margin-bottom: 1rem;
}
@media (max-width: 1100px) {
  .grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 0.45rem;
  padding: 0.9rem 1rem;
}
.card .label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin-bottom: 0.35rem;
}
.card .value {
  font-size: 1.75rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}
.bar {
  margin-top: 0.65rem;
  height: 0.45rem;
  background: #0F172A;
  border-radius: 999px;
  overflow: hidden;
}
.bar > i {
  display: block;
  height: 100%;
  width: 0;
  background: var(--healthy);
}

.panels {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}
@media (max-width: 900px) {
  .panels { grid-template-columns: 1fr; }
}

.panel { min-height: 220px; }
.panel h2 {
  margin: 0 0 0.75rem;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.panel .summary {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}
.table th, .table td {
  text-align: left;
  padding: 0.4rem 0.25rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.table th { color: var(--muted); font-weight: 500; font-size: 0.75rem; text-transform: uppercase; }
.muted { color: var(--muted); }
.alert-row { padding: 0.45rem 0; border-bottom: 1px solid var(--border); font-size: 0.9rem; }
.empty { color: var(--muted); padding: 1rem 0; text-align: center; }

.footer {
  margin-top: 1.5rem;
  color: #475569;
  font-size: 0.8rem;
  text-align: right;
}