* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  background: linear-gradient(to right, #e8f5e9, #f1f8e9);
  color: #333;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header {
  background-color: #2e7d32;
  color: white;
  padding: 1.5rem 2rem;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 1000;
}

header h1 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

nav {
  margin-top: 0.5rem;
}

nav a {
  color: white;
  text-decoration: none;
  margin-right: 1.5rem;
  font-weight: bold;
  transition: color 0.3s ease;
}

nav a:hover {
  color: #aed581;
}

main {
  flex: 1;
  padding: 2rem;
  max-width: 1000px;
  margin: auto;
  background-color: #ffffffc7;
  border-radius: 12px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.05);
  margin-top: 2rem;
  animation: fadeIn 1s ease-in-out;
}

main h2 {
  color: #2e7d32;
  font-size: 2rem;
  margin-bottom: 1rem;
  border-bottom: 2px solid #66bb6a;
  display: inline-block;
}

main h3 {
  color: #388e3c;
  margin-top: 2rem;
  margin-bottom: 1rem;
}

main p,
main ul {
  font-size: 1.1rem;
  color: #444;
}

ul {
  padding-left: 1.5rem;
  list-style: disc;
}

li {
  margin-bottom: 0.6rem;
}

footer {
  text-align: center;
  background-color: #2e7d32;
  color: white;
  padding: 1rem 0;
  font-size: 0.95rem;
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(25px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 768px) {
  header, main {
    padding: 1rem;
  }

  nav a {
    display: inline-block;
    margin: 0.5rem 0.5rem 0 0;
  }

  main h2 {
    font-size: 1.5rem;
  }
}