body {
  font-family: Arial, sans-serif;
  background: #f4f5f7;
  margin: 0;
  padding: 24px;
  color: #222;
}

main {
  max-width: 1100px;
  margin: 0 auto;
}

.card {
  background: white;
  border-radius: 12px;
  padding: 18px;
  margin-bottom: 16px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.status-row {
  display: flex;
  align-items: center;
  gap: 16px;
}

.dot {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: #999;
}

.dot.ok { background: #21a453; }
.dot.stale { background: #f39c12; }
.dot.error { background: #d93025; }
.dot.unknown { background: #777; }

.buttons {
  margin-top: 18px;
}

button {
  padding: 10px 16px;
  border: 0;
  border-radius: 8px;
  background: #1a73e8;
  color: white;
  font-weight: bold;
  cursor: pointer;
  margin-right: 8px;
}

button.danger {
  background: #d93025;
}

button:hover {
  opacity: 0.9;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}