body {
  font-family: system-ui, -apple-system, sans-serif;
  max-width: 700px;
  margin: auto;
  padding: 20px;
  line-height: 1.6;
  color: #222;
}

header, footer {
  text-align: center;
  margin-bottom: 30px;
}

nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 8px 16px;
}

nav a {
  text-decoration: none;
  color: #333;
}

nav a:hover {
  color: #000;
  text-decoration: underline;
}

nav img {
  height: 40px;
  margin-right: 12px;
}

h1, h2 {
  font-weight: 600;
  line-height: 1.3;
}

a {
  color: #1a5fad;
}

footer {
  margin-top: 40px;
  font-size: 0.9em;
  color: #666;
}