body {
    font-family: system-ui, sans-serif;
    margin: 0;
    background: #f8fafc;
    color: #1e293b;
  }
  
  header {
    background: #1e293b;
    color: white;
    padding: 16px;
  }
  
  main {
    padding: 24px;
  }
  
  .controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
  }
  
  #searchInput {
    padding: 8px 12px;
    width: 250px;
    border-radius: 6px;
    border: 1px solid #cbd5e1;
  }
  
  .filters button {
    margin-left: 8px;
    padding: 6px 12px;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    background: #e2e8f0;
  }
  
  .filters button.active {
    background: #1e293b;
    color: white;
  }
  
  .cluster-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
  }
  
  .cluster-card {
    background: white;
    padding: 16px;
    border-radius: 10px;
    border: 1px solid #cbd5e1;
    box-shadow: 0 2px 6px rgba(0,0,0,0.05);
  }
  
  .cluster-card h2 {
    margin: 0 0 6px 0;
  }
  
  .status {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    margin-bottom: 8px;
  }
  
  .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
  }
  
  .dot.healthy { background: #22c55e; }
  .dot.warning { background: #eab308; }
  .dot.critical { background: #ef4444; }
  
  .meta {
    font-size: 13px;
    color: #475569;
    margin-bottom: 12px;
  }
  
  .actions button {
    margin-right: 8px;
    margin-top: 6px;
    padding: 6px 10px;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    background: #1e293b;
    color: white;
  }
  
  .actions button.secondary {
    background: #e2e8f0;
    color: #1e293b;
  }