body {
  margin: 0;
  font-family: Arial;
  background: #0f172a;
  color: #e2e8f0;
}

.container {
  padding: 20px;
}

h1, h2 {
  color: #38bdf8;
}

.grid {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
}

.card {
  background: #1e293b;
  padding: 15px;
  border-radius: 12px;
  cursor: pointer;
  flex: 1 1 250px;
  transition: 0.3s;
}

.card:hover {
  transform: scale(1.05);
  background: #334155;
}

.details {
  margin-top: 10px;
  display: none;
  color: #94a3b8;
}

.pipeline {
  display: flex;
  overflow-x: auto;
}

.node {
  min-width: 220px;
  margin: 10px;
  padding: 15px;
  background: #1e293b;
  border-radius: 10px;
  cursor: pointer;
}