* {
  box-sizing: border-box;
  font-family: Arial, sans-serif;
}

body {
  margin: 0;
  background: #f5fff7;
  color: #033;
}

header {
  background: #0a7a3c;
  color: white;
  padding: 20px;
  text-align: center;
}

nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  background: #0f9d58;
}

nav a {
  color: white;
  padding: 10px 15px;
  text-decoration: none;
}

nav a:hover {
  background: #0a7a3c;
}

.section {
  padding: 30px;
  text-align: center;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 15px;
  list-style: none;
  padding: 0;
}

.grid li {
  background: white;
  padding: 15px;
  border-radius: 8px;
  box-shadow: 0 0 5px rgba(0,0,0,0.1);
}

form {
  max-width: 400px;
  margin: auto;
  display: flex;
  flex-direction: column;
}

form input, form button {
  margin: 8px 0;
  padding: 10px;
}

button {
  background: #0f9d58;
  color: white;
  border: none;
  cursor: pointer;
}

button:hover {
  background: #0a7a3c;
}

footer {
  background: #033;
  color: white;
  text-align: center;
  padding: 10px;
}