body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background-color: #f5fff8;
  color: #2b2b2b;
}
header img {
  width: 100%;
  height: auto;
}
nav {
  text-align: center;
  padding: 1em;
  background-color: #b8eacb;
}
nav a {
  margin: 0 1em;
  color: #333;
  text-decoration: none;
  font-weight: bold;
}
main {
  padding: 2em;
  text-align: center;
}
.hero-img {
  width: 100%;
  max-width: 800px;
  margin-top: 2em;
}
footer {
  background-color: #d9f1e0;
  text-align: center;
  padding: 1em;
  margin-top: 2em;
}
form {
  max-width: 500px;
  margin: 0 auto;
  text-align: left;
}
input, textarea {
  width: 100%;
  padding: 0.5em;
  margin-bottom: 1em;
}
button {
  padding: 0.75em 1.5em;
  background-color: #ffd966;
  border: none;
  font-weight: bold;
}