/* Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: Arial, sans-serif;
  background: #fafafa;
  color: #333;
  display: flex;
  flex-direction: column;
  min-height: 100vh; /* ensures full height */
}

/* Header */
header {
  background: #222;
  color: white;
  padding: 1.5rem 1rem;
  text-align: center;
}

header h1 {
  margin-bottom: 0.5rem;
}

nav {
  margin-top: 0.5rem;
}

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

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

/* Main content */
main {
  flex: 1; /* pushes footer down */
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem;
  gap: 1rem; /* space between heading & paragraph */
}

/* Footer */
footer {
  background: #222;
  color: white;
  text-align: center;
  padding: 1rem;
}