body {
  font-family: 'Poppins', sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f8f9fa;
  color: #333;
}

header {
  background-color: #ffffff;
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

header img {
  height: 60px;
}

header h1 {
  font-size: 1.5rem;
  margin: 0;
  color: #222;
}



.container {
  max-width: 1200px;
  margin: auto;
  padding: 2rem;
}

.cluster-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.cluster-card {
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  overflow: hidden;
  transition: transform 0.2s ease;
}

.cluster-card:hover {
  transform: translateY(-5px);
}

.cluster-card img {
  width: 100%;
  height: 300px;
  object-fit: cover;
}

.cluster-card h3 {
  margin: 1rem;
}

/*
.cluster-card h4 {
  font-size: 1.5rem;
  margin: 1rem;
  color: #00CCEB;
} */

.cluster-card p {
  margin: 0 1rem 1rem;
}

.btn {
  display: inline-block;
  margin: 1rem;
  padding: 0.7rem 1.2rem;
  background-color: #0077b6;
  color: #fff;
  border-radius: 8px;
  text-decoration: none;
  transition: background 0.2s;
}

.btn:hover {
  background-color: #023e8a;
}

footer {
  text-align: center;
  padding: 1.5rem;
  background: #ffffff;
  color: #555;
  margin-top: 3rem;
  border-top: 1px solid #ddd;
}