:root {
  --color-bg: #F4F0E8;
  --color-surface: #FFF9F0;
  --color-text: #1E1D1B;
  --color-muted: #5E5A54;
  --color-border: #D7CFC2;
  --color-primary: #2B2A27;
  --color-secondary: #5A4A3B;
  --color-accent: #B24A2F;
  --radius: 0.375rem;
  --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --space: 1rem;
  --maxw: 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: var(--space);
  font-size: clamp(1rem, 2.5vw, 1.125rem);
}

/* Mobile-first single-column flow */
main {
  max-width: var(--maxw);
  margin: 0 auto;
}

/* Editorial two-column grid at >=1024px */
@media (min-width: 1024px) {
  body {
    display: grid;
    grid-template-columns: 1fr 300px;
    grid-template-areas: 
      "header header"
      "main aside"
      "footer footer";
    gap: calc(var(--space) * 2);
    max-width: 1200px;
    margin: 0 auto;
  }
  
  header {
    grid-area: header;
  }
  
  main {
    grid-area: main;
    max-width: none;
  }
  
  aside {
    grid-area: aside;
    position: sticky;
    top: var(--space);
    height: fit-content;
  }
  
  footer {
    grid-area: footer;
  }
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.25;
  margin-top: calc(var(--space) * 1.5);
  margin-bottom: var(--space);
  color: var(--color-primary);
}

h1 {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  margin-top: 0;
}

h2 {
  font-size: clamp(1.5rem, 3.5vw, 1.875rem);
}

h3 {
  font-size: clamp(1.25rem, 3vw, 1.5rem);
}

p {
  margin-bottom: var(--space);
}

/* Links */
a {
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

@media (prefers-reduced-motion: no-preference) {
  a {
    transition: color 0.2s ease;
  }
}

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

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

/* Navigation */
nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space);
}

nav li {
  margin: 0;
}

/* Breadcrumbs */
nav[aria-label="Breadcrumb"] ol {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space) 0;
  display: flex;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--color-muted);
}

nav[aria-label="Breadcrumb"] li:not(:last-child)::after {
  content: " > ";
  margin-left: 0.5rem;
  color: var(--color-border);
}

/* Tables with zebra striping and horizontal scroll */
table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space) 0;
  background-color: var(--color-surface);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

@media (max-width: 767px) {
  table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }
}

caption {
  font-weight: 600;
  text-align: left;
  padding: var(--space);
  background-color: var(--color-primary);
  color: var(--color-surface);
  margin: 0;
}

th, td {
  padding: 0.75rem var(--space);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

th {
  background-color: var(--color-secondary);
  color: var(--color-surface);
  font-weight: 600;
}

tbody tr:nth-child(even) {
  background-color: rgba(90, 74, 59, 0.05);
}

tbody tr:hover {
  background-color: rgba(90, 74, 59, 0.1);
}

/* Accordions using details/summary */
details {
  margin-bottom: var(--space);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background-color: var(--color-surface);
}

summary {
  padding: var(--space);
  cursor: pointer;
  font-weight: 600;
  background-color: rgba(43, 42, 39, 0.05);
  border-radius: var(--radius) var(--radius) 0 0;
  position: relative;
}

summary:hover {
  background-color: rgba(43, 42, 39, 0.1);
}

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

summary::marker {
  content: "";
}

summary::before {
  content: "+";
  position: absolute;
  right: var(--space);
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.25rem;
  color: var(--color-accent);
}

details[open] summary::before {
  content: "−";
}

details[open] summary {
  border-radius: var(--radius) var(--radius) 0 0;
}

details > *:not(summary) {
  padding: 0 var(--space) var(--space) var(--space);
}

/* Blockquotes with left border accent */
blockquote {
  margin: calc(var(--space) * 1.5) 0;
  padding: var(--space) calc(var(--space) * 1.5);
  border-left: 4px solid var(--color-accent);
  background-color: var(--color-surface);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-style: italic;
  position: relative;
}

blockquote p:last-child {
  margin-bottom: 0;
}

/* Aside callouts */
aside {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space);
  margin: calc(var(--space) * 1.5) 0;
  box-shadow: var(--shadow);
}

aside h3 {
  margin-top: 0;
  color: var(--color-secondary);
  font-size: 1.125rem;
}

/* Sections */
section {
  margin-bottom: calc(var(--space) * 2);
}

/* Header and Footer */
header {
  margin-bottom: calc(var(--space) * 2);
  padding-bottom: var(--space);
  border-bottom: 2px solid var(--color-border);
}

footer {
  margin-top: calc(var(--space) * 2);
  padding-top: var(--space);
  border-top: 1px solid var(--color-border);
  text-align: center;
  color: var(--color-muted);
  font-size: 0.875rem;
}

/* Print-friendly rules */
@media print {
  body {
    background: white;
    color: black;
    font-size: 12pt;
    line-height: 1.4;
  }
  
  * {
    box-shadow: none !important;
  }
  
  a::after {
    content: " (" attr(href) ")";
    font-size: 0.8em;
    color: #666;
  }
  
  nav[aria-label="Breadcrumb"],
  nav ul {
    display: none;
  }
  
  details summary::before {
    display: none;
  }
  
  details {
    border: none;
  }
  
  details > *:not(summary) {
    padding: 0;
  }
}

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

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

/* Responsive breakpoints */
@media (min-width: 768px) {
  body {
    padding: calc(var(--space) * 2);
  }
  
  main {
    max-width: 70ch;
  }
}

/* Ensure readable measure */
article {
  max-width: var(--maxw);
}

/* List styling */
ul, ol {
  padding-left: calc(var(--space) * 1.5);
}

li {
  margin-bottom: 0.5rem;
}

/* Strong and emphasis */
strong {
  font-weight: 600;
  color: var(--color-primary);
}

em {
  font-style: italic;
}