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

header {
  background: #0056b3;
  color: white;
  padding: 20px;
  text-align: center;
}

main {
  padding: 20px;
}

.conference-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}

.conference-card {
  background: white;
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.conference-card h2 {
  margin-top: 0;
  color: #0056b3;
}

footer {
  text-align: center;
  padding: 15px;
  background: #f1f1f1;
  margin-top: 20px;
}