body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background: linear-gradient(to right, #eef2f3, #ffffff);
  color: #333;
}

.hub-container {
  max-width: 1100px;
  margin: auto;
  padding: 40px 20px;
  text-align: center;
}

header h1 {
  font-size: 3em;
  margin-bottom: 10px;
  color: #2c3e50;
}

.subtitle {
  font-size: 1.2em;
  color: #555;
  margin-bottom: 40px;
}

.hub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 25px;
}

.hub-card {
  background: #fff;
  border-radius: 12px;
  padding: 25px 20px;
  text-decoration: none;
  color: inherit;
  box-shadow: 0 6px 16px rgba(0,0,0,0.08);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hub-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0,0,0,0.12);
}

.hub-card .icon {
  font-size: 2.5em;
  margin-bottom: 10px;
}

.hub-card h2 {
  margin: 10px 0 8px;
  font-size: 1.3em;
  color: #2c3e50;
}

.hub-card p {
  font-size: 0.95em;
  color: #666;
}

footer {
  margin-top: 60px;
  font-size: 0.9em;
  color: #888;
}