* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background: #0f172a;
  color: #f1f5f9;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
}

main {
  max-width: 48rem;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

h1 {
  font-size: 1.5rem;
  margin: 0 0 0.25rem;
}

.subtitle {
  color: #94a3b8;
  margin: 0 0 1.5rem;
}

.note {
  color: #f87171;
  min-height: 1.25rem;
  margin-bottom: 0.75rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: #1e293b;
  border-radius: 10px;
  overflow: hidden;
}

th, td {
  text-align: left;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid #334155;
}

th {
  color: #94a3b8;
  font-weight: 500;
  font-size: 0.85rem;
}

tr:last-child td {
  border-bottom: none;
}

.dot {
  display: inline-block;
  width: 0.6rem;
  height: 0.6rem;
  border-radius: 50%;
  margin-right: 0.5rem;
}

.dot.online { background: #4ade80; }
.dot.offline { background: #f87171; }