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

html {
  font-size: 16px;
}

body {
  font-family: Georgia, 'Times New Roman', Times, serif;
  line-height: 1.7;
  color: #111;
  background: #fff;
}

main {
  max-width: 700px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

header {
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid #ccc;
}

h1 {
  font-size: 1.75rem;
  font-weight: normal;
  margin-bottom: 0.25rem;
}

.tagline {
  color: #555;
  font-style: italic;
}

.author {
  color: #555;
  font-size: 0.9rem;
  margin-top: 0.5rem;
}

.tldr {
  background: #f9f9f9;
  border-left: 3px solid #111;
  padding: 1.25rem 1.5rem;
  margin: 2rem 0;
}

.tldr ul {
  margin-bottom: 0;
}

.tldr li {
  margin-bottom: 0.4rem;
}

.hook {
  font-size: 1.1rem;
  font-weight: bold;
  margin-bottom: 1rem;
}

nav {
  margin-bottom: 3rem;
  padding: 1rem 0;
  border-bottom: 1px solid #ccc;
}

nav ol {
  list-style: upper-roman;
  padding-left: 2.5rem;
  margin-bottom: 0;
}

nav li {
  margin-bottom: 0.35rem;
  padding-left: 0.5rem;
}

nav a {
  color: #0066cc;
  text-decoration: none;
  font-size: 0.9rem;
}

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

section {
  margin-bottom: 4rem;
  padding-top: 1rem;
}

h2 {
  font-size: 1.5rem;
  font-weight: bold;
  margin-bottom: 0.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid #111;
}

.section-summary {
  color: #555;
  font-style: italic;
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
}

h3 {
  font-size: 1.15rem;
  font-weight: bold;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

h4 {
  font-size: 1rem;
  font-weight: bold;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}

p {
  margin-bottom: 1.25rem;
}

ul {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
}

li {
  margin-bottom: 0.6rem;
}

strong {
  font-weight: bold;
}

a {
  color: #0066cc;
}

a:visited {
  color: #551a8b;
}

article {
  margin-bottom: 2rem;
}

article:last-child {
  margin-bottom: 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
}

th, td {
  padding: 0.5rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid #ddd;
}

th {
  font-weight: bold;
  background: #f9f9f9;
  border-bottom: 2px solid #ccc;
}

tr:hover {
  background: #fafafa;
}

.table-wrapper {
  overflow-x: auto;
}

code {
  font-family: 'SF Mono', Monaco, 'Courier New', monospace;
  font-size: 0.85em;
  background: #f5f5f5;
  padding: 0.15em 0.35em;
  border-radius: 3px;
}

.scorecard {
  background: #f9f9f9;
  padding: 1.5rem;
  margin: 1.5rem 0;
}

.scorecard h3 {
  margin-top: 1rem;
}

.scorecard h3:first-child {
  margin-top: 0;
}

.checklist {
  list-style: none;
  padding-left: 0;
}

.checklist li {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
}

.box {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 1px solid #666;
  flex-shrink: 0;
  position: relative;
  top: 2px;
}

.score-guide {
  background: #111;
  color: #fff;
  padding: 1rem 1.5rem;
  margin-top: 1rem;
}

.score-guide p {
  margin-bottom: 0.3rem;
}

.score-guide p:last-child {
  margin-bottom: 0;
}

dl {
  margin-bottom: 1rem;
}

dt {
  font-weight: bold;
  margin-top: 1rem;
}

dd {
  margin-left: 0;
  margin-bottom: 0.5rem;
  color: #333;
}

footer {
  margin-top: 4rem;
  padding-top: 1.5rem;
  border-top: 1px solid #ccc;
  font-size: 0.9rem;
  color: #555;
}

#back-to-top {
  position: fixed;
  top: 1.5rem;
  right: 1.5rem;
  padding: 0.5rem 1rem;
  font-family: Georgia, 'Times New Roman', Times, serif;
  font-size: 0.85rem;
  background: #111;
  color: #fff;
  border: none;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s, visibility 0.2s;
}

#back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

#back-to-top:hover {
  background: #333;
}

@media (max-width: 600px) {
  html {
    font-size: 15px;
  }

  main {
    padding: 1.5rem 1rem 3rem;
  }

  nav a {
    display: inline-block;
    margin-bottom: 0.5rem;
  }

  table {
    font-size: 0.8rem;
  }

  th, td {
    padding: 0.4rem 0.5rem;
  }

  #back-to-top {
    top: auto;
    bottom: 1rem;
    right: 1rem;
    padding: 0.4rem 0.75rem;
  }
}

@media print {
  body {
    font-size: 11pt;
    line-height: 1.5;
    color: #000;
    background: #fff;
  }

  main {
    max-width: 100%;
    padding: 0;
    margin: 0;
  }

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

  a[href^="http"]::after {
    content: " (" attr(href) ")";
    font-size: 9pt;
    color: #555;
  }

  nav a[href^="#"]::after {
    content: none;
  }

  #back-to-top {
    display: none;
  }

  h2 {
    page-break-after: avoid;
  }

  section {
    page-break-inside: avoid;
  }

  .tldr {
    border-left-color: #000;
  }

  table {
    font-size: 9pt;
  }
}