body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background: #f8f9fa;
  color: #222;
}

header {
  background: #222;
  color: #fff;
  padding: 1rem;
  text-align: center;
}

header nav ul {
  list-style: none;
  padding: 0;
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-top: 1rem;
}

header nav ul li a {
  color: #fff;
  text-decoration: none;
  font-weight: bold;
}

main {
  padding: 2rem;
  max-width: 800px;
  margin: 0 auto;
}

section {
  margin-bottom: 2rem;
}

form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 300px;
}

input[type="text"],
input[type="email"] {
  padding: 0.5rem;
  border: 1px solid #ccc;
  border-radius: 4px;
}

button[type="submit"] {
  background: #222;
  color: #fff;
  border: none;
  padding: 0.75rem;
  border-radius: 4px;
  cursor: pointer;
  font-size: 1rem;
}

footer {
  background: #222;
  color: #fff;
  text-align: center;
  padding: 1rem;
  position: fixed;
  width: 100%;
  bottom: 0;
}