:root {
  --bg: #fafafa;
  --text: #1a1a1a;
  --text-secondary: #6b7280;
  --link: #111827;
  --link-hover: #2563eb;
  --divider: #e5e7eb;
  --max-width: 880px;
  --font-serif: 'Georgia', 'Times New Roman', serif;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

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

html {
  font-size: 20px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.6;
  padding: 2rem 1rem;
}

#content {
  max-width: var(--max-width);
  margin: 4rem auto 0;
}

.title {
  font-family: var(--font-serif);
  font-size: 2.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 0.5rem;
  color: var(--text);
}

.title + .author {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
}

ul.org-ul {
  list-style: none;
  padding: 0;
}

ul.org-ul li {
  padding: 0;
}

ul.org-ul li a {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: var(--link);
  text-decoration: none;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  line-height: 1.6;
  display: block;
  padding: 1rem 0;
  border-bottom: 1px solid var(--divider);
  transition: color 0.15s ease;
}

ul.org-ul li:first-child a {
  border-top: 1px solid var(--divider);
}

ul.org-ul li a:hover {
  color: var(--link-hover);
  text-decoration-color: var(--link-hover);
}

ul.org-ul li a::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--text-secondary);
  border-radius: 50%;
  margin-right: 0.75rem;
  vertical-align: middle;
  opacity: 0.4;
}

footer {
  margin-top: 4rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--divider);
  font-size: 0.875rem;
  color: var(--text-secondary);
  text-align: center;
}

@media (max-width: 600px) {
  body {
    padding: 1.5rem 1rem;
  }

  #content {
    margin-top: 2rem;
  }

  .title {
    font-size: 2rem;
  }

  ul.org-ul li a {
    font-size: 1.125rem;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111111;
    --text: #f3f4f6;
    --text-secondary: #9ca3af;
    --link: #f9fafb;
    --link-hover: #60a5fa;
    --divider: #262626;
  }
}