* {
  user-select: none;
}

body {
  font-family: Arial, sans-serif;
  background: #f8f8f8;
  margin: 0;
  padding: 0;
  color: #333;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

header {
  background: #2c3e50;
  color: white;
  padding: 1rem;
  text-align: center;
}

nav {
  margin-top: 0.5rem;
}

nav a {
  color: #ecf0f1;
  text-decoration: none;
  margin: 0 10px;
}

nav a:hover {
  text-decoration: underline;
}

main {
  display: 1;
  padding: 2rem;
  max-width: 800px;
  margin: auto;
  background: #fff;
}

footer {
  background: #eee;
  text-align: center;
  padding: 1rem;
  font-size: 0.9em;
  margin-top: 2rem;
}