body {
  font-family: "Helvetica Neue", Arial, sans-serif;
  margin: 0;
  background-color: #fafafa;
  color: #222;
  line-height: 1.6;
}

header {
  background-color: #1a1a1a;
  color: #fff;
  padding: 20px 0;
  text-align: center;
}

nav a {
  color: #ccc;
  margin: 0 15px;
  text-decoration: none;
  font-weight: 500;
}

nav a:hover,
nav a.active {
  color: #fff;
  border-bottom: 2px solid #0066cc;
}

main {
  max-width: 900px;
  margin: 40px auto;
  background: #fff;
  padding: 20px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
  border-radius: 8px;
}

h1, h2, h3 {
  color: #003a66;
}

.button {
  display: inline-block;
  padding: 10px 20px;
  background-color: #0066cc;
  color: #fff;
  border-radius: 4px;
  text-decoration: none;
}

.button:hover {
  background-color: #004c99;
}

form input, form textarea, form button {
  width: 100%;
  max-width: 600px;
  padding: 10px;
  margin-bottom: 15px;
  border: 1px solid #ccc;
  border-radius: 4px;
}

footer {
  background-color: #1a1a1a;
  color: #ccc;
  text-align: center;
  padding: 20px 0;
  margin-top: 40px;
}