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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: #111;
  background: #fff;
  line-height: 1.6;
  max-width: 720px;
  margin: 0 auto;
  padding: 24px 20px;
}

header {
  border-bottom: 1px solid #ddd;
  padding-bottom: 16px;
  margin-bottom: 32px;
}

header h1 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 4px;
}

header p {
  font-size: 0.9rem;
  color: #555;
}

nav {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

nav a {
  color: #1a73e8;
  text-decoration: none;
  font-size: 0.9rem;
}

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

h2 {
  font-size: 1.25rem;
  margin-top: 32px;
  margin-bottom: 12px;
}

h3 {
  font-size: 1.05rem;
  margin-top: 24px;
  margin-bottom: 8px;
}

p, li {
  font-size: 0.95rem;
  margin-bottom: 10px;
}

ul {
  padding-left: 24px;
  margin-bottom: 16px;
}

footer {
  margin-top: 48px;
  padding-top: 16px;
  border-top: 1px solid #ddd;
  font-size: 0.85rem;
  color: #777;
}

footer a {
  color: #1a73e8;
  text-decoration: none;
}

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

a {
  color: #1a73e8;
}