@media (max-width: 600px) {
  nav {
    flex-direction: column;
  }
}

@media (max-width: 600px) {
  nav a {
    padding: 12px;
    text-align: center;
  }
}

@media (max-width: 600px) {
  form input, form textarea {
    width: 100%;
    padding: 10px;
    margin-top: 8px;
    margin-bottom: 20px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 1em;
  }
}

body {
  padding: 40px 20px;
  max-width: 1000px;
  text-align: center;
  margin: auto;
  color: white;
  background-color: #0a3d62;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}

nav {
  display: flex;
  justify-content: center;
  background: #1e272e;
}

nav a {
  color: white;
  padding: 15px 25px;
  text-decoration: none;
  font-weight: 600;
}

nav a:hover {
  background-color: grey;
}

button {
  background-color: #0a3d62;
  color: white;
  padding: 12px 20px;
  border: none;
  border-radius: 4px;
  font-size: 1em;
  cursor: pointer;
}

button:hover {
  background-color: #145f9e;
}

footer {
  background-color: #1e272e;
  color: #ddd;
  text-align: center;
  padding: 20px;
  margin-top: 40px;
}