:root {
  --color-primary: #1E4B5A;
  --color-secondary: #6B4E3D;
  --color-accent: #C46A3B;
  --color-bg: #F6F2EA;
  --color-surface: #FFFFFF;
  --color-text: #142027;
  --color-text-muted: #4B5A63;
  --color-border: #D8D1C6;
  --radius: 0.5rem;
  --shadow: 0 2px 8px rgba(20, 32, 39, 0.1);
  --space: 1rem;
  --measure: 65ch;
}

* {
  box-sizing: border-box;
}

body {
  font-family: Georgia, 'Times New Roman', serif;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  margin: 0;
  padding: 0;
}

/* Typography Scale */
h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  line-height: 1.2;
  margin: 0 0 1.5rem 0;
  color: var(--color-primary);
}

h2 {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  line-height: 1.3;
  margin: 2rem 0 1rem 0;
  color: var(--color-primary);
}

h3 {
  font-size: clamp(1.1rem, 2.5vw, 1.25rem);
  line-height: 1.4;
  margin: 1.5rem 0 0.75rem 0;
  color: var(--color-secondary);
}

p {
  margin: 0 0 1rem 0;
  max-width: var(--measure);
}

.lead {
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--color-primary);
  margin-bottom: 1.5rem;
}

/* Layout Grid */
body {
  display: grid;
  grid-template-rows: auto 1fr auto;
  min-height: 100vh;
}

header {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow);
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space);
  max-width: 1200px;
  margin: 0 auto;
}

.nav-brand {
  font-size: 1.25rem;
  color: var(--color-primary);
}

.nav-links {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 1.5rem;
}

.nav-links a {
  color: var(--color-text);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s ease;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--color-accent);
}

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem var(--space);
}

article {
  background-color: var(--color-surface);
  padding: 2rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

section {
  margin-bottom: 3rem;
}

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

/* Breadcrumbs */
.breadcrumbs {
  margin-bottom: 2rem;
}

.breadcrumbs ol {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 0.5rem;
}

.breadcrumbs li:not(:last-child)::after {
  content: '>';
  margin-left: 0.5rem;
  color: var(--color-text-muted);
}

.breadcrumbs a {
  color: var(--color-accent);
  text-decoration: none;
}

.breadcrumbs a:hover,
.breadcrumbs a:focus-visible {
  text-decoration: underline;
}

/* Links */
a {
  color: var(--color-accent);
  transition: color 0.2s ease;
}

a:hover,
a:focus-visible {
  color: var(--color-secondary);
}

a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: 2px;
}

/* Tables */
.table-wrapper {
  overflow-x: auto;
  margin: 1.5rem 0;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--color-surface);
}

caption {
  font-weight: 600;
  color: var(--color-primary);
  text-align: left;
  padding: 1rem;
  background-color: var(--color-bg);
}

th {
  background-color: var(--color-primary);
  color: var(--color-surface);
  font-weight: 600;
  text-align: left;
  padding: 0.75rem;
}

td {
  padding: 0.75rem;
  border-bottom: 1px solid var(--color-border);
}

tbody tr:nth-child(even) {
  background-color: var(--color-bg);
}

tbody tr {
  transition: background-color 0.2s ease;
}

tbody tr:hover {
  background-color: rgba(196, 106, 59, 0.1);
}

@media (min-width: 768px) {
  th {
    position: sticky;
    top: 0;
    z-index: 1;
  }
}

/* Details/Summary Accordion */
details {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: 1rem;
  background-color: var(--color-surface);
}

details[open] {
  border-color: var(--color-accent);
  background-color: rgba(196, 106, 59, 0.05);
}

summary {
  padding: 1rem;
  font-weight: 600;
  color: var(--color-primary);
  cursor: pointer;
  transition: background-color 0.2s ease;
  border-radius: var(--radius);
}

summary:hover,
summary:focus-visible {
  background-color: var(--color-bg);
}

summary:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

details[open] summary {
  border-bottom: 1px solid var(--color-border);
  border-radius: var(--radius) var(--radius) 0 0;
}

details p {
  padding: 1rem;
  margin: 0;
}

/* Blockquotes */
blockquote {
  border-left: 4px solid var(--color-secondary);
  padding-left: 1.5rem;
  margin: 2rem 0;
  font-style: italic;
  color: var(--color-text-muted);
  position: relative;
}

blockquote p {
  margin: 0;
  max-width: none;
}

blockquote::before {
  content: '';
  position: absolute;
  left: -2px;
  top: 0;
  bottom: 0;
  width: 2px;
  background-color: var(--color-accent);
}

/* Aside Elements */
aside {
  background-color: var(--color-bg);
  padding: 1.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  margin: 2rem 0;
}

aside h3 {
  margin-top: 0;
  color: var(--color-secondary);
}

aside ul {
  margin: 0;
  padding-left: 1.5rem;
}

aside li {
  margin-bottom: 0.5rem;
}

/* Internal Navigation */
.internal-nav ul {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0 0;
}

.internal-nav li {
  margin-bottom: 0.5rem;
}

.internal-nav a {
  display: inline-block;
  padding: 0.5rem 1rem;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  text-decoration: none;
  transition: all 0.2s ease;
}

.internal-nav a:hover,
.internal-nav a:focus-visible {
  background-color: var(--color-accent);
  color: var(--color-surface);
  border-color: var(--color-accent);
}

/* Footer */
footer {
  background-color: var(--color-primary);
  color: var(--color-surface);
  text-align: center;
  padding: 2rem var(--space);
  margin-top: 2rem;
}

footer p {
  margin: 0;
  max-width: none;
}

/* Responsive Design */
@media (max-width: 767px) {
  .nav-links {
    gap: 1rem;
  }
  
  main {
    padding: 1rem var(--space);
  }
  
  article {
    padding: 1.5rem;
  }
  
  .table-wrapper {
    font-size: 0.9rem;
  }
}

@media (min-width: 1024px) {
  nav {
    padding: 1.5rem var(--space);
  }
  
  main {
    padding: 3rem var(--space);
  }
  
  article {
    padding: 3rem;
  }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  html {
    scroll-behavior: auto !important;
  }
}

/* Focus Management */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* Print Styles */
@media print {
  * {
    background: transparent !important;
    color: black !important;
    box-shadow: none !important;
  }
  
  a {
    text-decoration: underline;
  }
  
  blockquote {
    border-left: 4px solid #000;
  }
  
  thead {
    display: table-header-group;
  }
  
  tr,
  img {
    page-break-inside: avoid;
  }
  
  h1,
  h2,
  h3 {
    page-break-after: avoid;
  }
}