body {
  font-family: Arial, sans-serif;
  margin: 0;
  background: #f9f9f9;
  color: #333;
}
header {
  background: #ff5722;
  color: white;
  padding: 1rem;
  text-align: center;
  font-size: 1.2rem;
}
button {
  background: #ff5722;
  border: none;
  color: white;
  padding: 0.5rem 1rem;
  margin: 0.2rem;
  cursor: pointer;
  border-radius: 4px;
}
button.secondary {
  background: #777;
}
.container {
  padding: 1rem;
}
.event-card {
  background: white;
  border-radius: 6px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  margin-bottom: 1rem;
  padding: 1rem;
}
.event-card h3 {
  margin: 0 0 0.5rem 0;
}
.navbar {
  display: flex;
  justify-content: space-around;
  position: fixed;
  bottom: 0;
  width: 100%;
  background: #ff5722;
  color: white;
}
.navbar button {
  flex: 1;
  padding: 1rem;
  background: none;
  border: none;
  color: white;
}