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

html {
  font-size: 18px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: Georgia, 'Times New Roman', Times, serif;
  line-height: 1.7;
  color: #1a1a1a;
  background: #fdfdfd;
  padding: 3rem 1.5rem 2rem;
}

main {
  max-width: 42rem;
  margin: 0 auto;
}

h1 {
  font-family: system-ui, -apple-system, 'Segoe UI', Helvetica, Arial, sans-serif;
  font-size: 2.2rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 0.15em;
  color: #111;
}

.subtitle {
  font-style: italic;
  font-size: 1rem;
  color: #555;
  margin-bottom: 1.8rem;
}

.lede {
  font-size: 0.95rem;
  color: #333;
  line-height: 1.75;
  margin-bottom: 2rem;
}

h2 {
  font-family: system-ui, -apple-system, 'Segoe UI', Helvetica, Arial, sans-serif;
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  margin-top: 2rem;
  margin-bottom: 0.6rem;
  color: #111;
}

p {
  margin-bottom: 1rem;
}

hr {
  border: none;
  border-top: 1px solid #d0d0d0;
  margin: 2rem 0;
}

ul {
  margin-bottom: 1rem;
  padding-left: 1.4em;
}

li {
  margin-bottom: 0.35em;
}

em {
  font-style: italic;
}

strong {
  font-weight: 600;
}

footer {
  max-width: 42rem;
  margin: 0 auto;
  padding-top: 1rem;
  font-size: 0.85rem;
  color: #666;
  line-height: 1.6;
}

footer .author {
  font-style: italic;
  margin-bottom: 0.2em;
}

footer .version {
  margin-bottom: 0.2em;
}

footer .copyright {
  margin-bottom: 0.5em;
}

footer a {
  color: #444;
  text-decoration: underline;
  text-underline-offset: 2px;
}

footer a:hover {
  color: #111;
}

@media (max-width: 600px) {
  html {
    font-size: 16px;
  }

  body {
    padding: 2rem 1.25rem 1.5rem;
  }

  h1 {
    font-size: 1.75rem;
  }
}