.main-header {
  background-color: #2d6a4f;
  color: #ffffff;
  text-align: center;
  padding: 2rem 1rem;
}

.main-header h1 {
  margin: 0;
  font-size: 2.5rem;
  font-weight: bold;
}

.tagline {
  font-size: 1.2rem;
  margin-top: 0.5rem;
  font-style: italic;
}

.nav-bar ul {
  list-style: none;
  padding: 0;
  margin-top: 1.5rem;
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.nav-bar li {
  display: inline;
}

.nav-bar a {
  color: #ffffff;
  text-decoration: none;
  font-weight: bold;
  font-size: 1rem;
  transition: all 0.3s ease;
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
}

.nav-bar a:hover,
.nav-bar a.active {
  background-color: #40916c;
  text-decoration: none;
}