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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: #333;
  background: #faf8f5;
  -webkit-font-smoothing: antialiased;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 8px;
  background: #000;
  color: #fff;
  padding: 6px 12px;
  font-size: 14px;
  text-decoration: none;
  z-index: 100;
  border-radius: 4px;
}

.skip-link:focus {
  top: 8px;
}

:focus-visible {
  outline: 2px solid #333;
  outline-offset: 2px;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 600px;
  margin: 0 auto;
  padding: 20px 20px 0;
}

nav a {
  color: #000;
  text-decoration: none;
  font-size: 15px;
}

nav a:hover {
  opacity: 0.6;
}

nav > a {
  font-weight: 600;
  font-size: 20px;
}

nav div {
  display: flex;
  gap: 16px;
}

nav div a {
  color: #000;
}

main {
  max-width: 600px;
  margin: 0 auto;
  padding: 40px 20px;
}

h1 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 16px;
  color: #000;
}

p {
  margin-bottom: 12px;
  color: #444;
}

a {
  color: #333;
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-color: #999;
}

a:hover {
  text-decoration-color: #333;
}

/* Articles list */
.articles {
  list-style: none;
  padding: 0;
}

.articles li {
  margin-bottom: 12px;
}

.articles a {
  display: block;
  color: #333;
}

.articles time {
  font-size: 13px;
  color: #666;
}

/* Article page */
.article-header {
  margin-bottom: 24px;
}

.article-title {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 4px;
}

.article-header time {
  font-size: 13px;
  color: #666;
}

.article h2 {
  font-size: 16px;
  font-weight: 600;
  margin: 24px 0 8px;
}

.article h3 {
  font-size: 15px;
  font-weight: 600;
  margin: 20px 0 8px;
}

.article ol,
.article ul {
  padding-left: 20px;
  margin-bottom: 16px;
}

.article li {
  margin-bottom: 4px;
}

.article li p {
  margin-bottom: 4px;
}

.article strong {
  font-weight: 600;
  color: #333;
}

/* Tools page */
.tools-page {
  max-width: 600px;
}

.tool-category {
  margin-bottom: 32px;
  padding-top: 24px;
  border-top: 1px solid #eee;
}

.tool-category:first-of-type {
  border-top: none;
  padding-top: 0;
}

.tool-category h2 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 12px;
  color: #000;
}

.tool-category h2 span {
  font-weight: 400;
  color: #666;
  font-size: 13px;
  margin-left: 6px;
}

.tool-category ul {
  list-style: none;
  padding: 0;
  columns: 2;
  column-gap: 32px;
}

.tool-category li {
  margin-bottom: 2px;
  font-size: 14px;
  break-inside: avoid;
}

.tool-category li a {
  display: inline-block;
  padding: 4px 0;
  min-height: 24px;
}

.tool-category li a {
  color: #333;
}

.tool-category li a:hover {
  color: #000;
}

@media (max-width: 600px) {
  .tool-category ul {
    columns: 1;
  }
}

@media print {
  nav, .skip-link {
    display: none;
  }
  body {
    background: #fff;
    color: #000;
    font-size: 12pt;
  }
  main {
    max-width: 100%;
    padding: 0;
  }
  a {
    color: #000;
    text-decoration: none;
  }
  a[href^="http"]::after {
    content: " (" attr(href) ")";
    font-size: 10pt;
    color: #666;
  }
}