/* Shared layout for all pages */
html, body {
  height: 100%;
  margin: 0;
  display: flex;
  flex-direction: column;
  font-family: Arial, sans-serif;
}

/* Content area fills screen so footer is at bottom */
#content {
  flex: 1;
}

/* Footer (always black, always at bottom) */
footer {
  text-align: center;
  padding: 10px;
  background: #000;
  color: #ccc;
  font-size: 14px;
}

/* Navbar */
nav {
  padding: 12px 16px;
}

nav a {
  text-decoration: none;
  margin-right: 15px;
  color: inherit;
}

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