body {
  font-family: 'Kosugi Maru', sans-serif;
  background-color: #e8f5e9;
  margin: 0;
  padding: 0;
  text-align: center;
  color: #4e342e;
}

header {
  background-color: #a5d6a7;
  padding: 20px;
}

header h1 {
  margin: 0;
  font-size: 2.5rem;
}

nav a {
  margin: 0 10px;
  text-decoration: none;
  color: #4e342e;
  font-weight: bold;
}

main {
  padding: 30px 20px;
}

.intro {
  background: #ffffff;
  border-radius: 15px;
  padding: 20px;
  margin: 20px auto;
  max-width: 600px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

footer {
  background-color: #a5d6a7;
  padding: 10px;
  margin-top: 40px;
}