body {
  font-family: sans-serif;
  line-height: 1.6;
  margin: 0;
  padding: 0;
  background: #fefefe;
}
header {
  background: #702963;
  color: white;
  padding: 1em;
  text-align: center;
}
nav a {
  margin: 0 1em;
  color: #ffd;
  text-decoration: none;
  display: inline-block;
}
main {
  padding: 2em;
}
footer {
  text-align: center;
  font-size: 0.9em;
  background: #eee;
  padding: 1em;
  margin-top: 2em;
}
form {
  max-width: 600px;
  margin: 0 auto;
}
button {
  padding: 10px 20px;
  font-size: 1em;
  background: #702963;
  color: white;
  border: none;
  cursor: pointer;
}
button:hover {
  background: #5a1f4f;
}

/* Responsive Design */
@media (max-width: 600px) {
  nav a {
    display: block;
    margin: 0.5em 0;
  }

  main {
    padding: 1em;
  }

  header, footer {
    font-size: 0.95em;
    padding: 1em 0.5em;
  }
}