:root {
  --color-primary: #2E4A3F;
  --color-secondary: #7A4E2D;
  --color-accent: #B24A3A;
  --color-bg: #FBF7F0;
  --color-surface: #FFFFFF;
  --color-text: #1B1F1D;
  --color-muted: #4B5A54;
  --color-border: #D9D1C5;
  --font-sans: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  --font-serif: ui-serif, Georgia, Times, serif;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(27,31,29,0.10);
}

* {
  box-sizing: border-box;
}

body {
  font-family: var(--font-sans);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  margin: 0;
  padding: 0;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  line-height: 1.2;
  margin: 0 0 1rem 0;
  color: var(--color-primary);
}

h1 {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
}

h2 {
  font-size: 2rem;
  margin-top: 2rem;
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.5rem;
  margin-top: 1.5rem;
}

p {
  margin: 0 0 1rem 0;
}

a {
  color: var(--color-accent);
  text-decoration: underline;
  transition: color 0.2s ease;
}

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

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

/* Layout */
body {
  display: grid;
  grid-template-rows: auto 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: 1rem;
  max-width: 1200px;
  margin: 0 auto;
}

.nav-brand a {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--color-primary);
  text-decoration: none;
}

.nav-links {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 2rem;
}

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

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

/* Breadcrumb */
.breadcrumb {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 0.5rem 1rem;
}

.breadcrumb ol {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  max-width: 1200px;
  margin: 0 auto;
  gap: 0.5rem;
  font-size: 0.9rem;
}

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

.breadcrumb a {
  color: var(--color-muted);
  text-decoration: none;
}

.breadcrumb a:hover {
  color: var(--color-accent);
}

/* Main content */
main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

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

article > header {
  background: none;
  border: none;
  box-shadow: none;
  padding: 0;
  margin-bottom: 2rem;
}

article > header p {
  font-size: 1.1rem;
  color: var(--color-muted);
  margin-top: 1rem;
}

section {
  margin-bottom: 3rem;
}

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

/* Aside */
aside {
  background-color: var(--color-bg);
  padding: 1.5rem;
  border-radius: var(--radius);
  border-left: 4px solid var(--color-accent);
  margin: 2rem 0;
}

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

dl {
  margin: 0;
}

dt {
  font-weight: bold;
  color: var(--color-primary);
  margin-top: 1rem;
}

dt:first-child {
  margin-top: 0;
}

dd {
  margin: 0.25rem 0 0 1rem;
  color: var(--color-muted);
}

/* Blockquote */
blockquote {
  background-color: var(--color-bg);
  border-left: 4px solid var(--color-secondary);
  padding: 1.5rem;
  margin: 2rem 0;
  border-radius: var(--radius);
  font-style: italic;
}

blockquote p {
  margin: 0;
  font-size: 1.1rem;
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  background-color: var(--color-surface);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

caption {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: bold;
  color: var(--color-primary);
  text-align: left;
  padding: 1rem;
  background-color: var(--color-bg);
}

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

th {
  background-color: var(--color-primary);
  color: var(--color-surface);
  font-weight: bold;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

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

tbody tr:hover {
  background-color: rgba(46, 74, 63, 0.05);
}

/* Table responsive */
@media (max-width: 767px) {
  table {
    font-size: 0.9rem;
  }
  
  th, td {
    padding: 0.75rem 0.5rem;
  }
}

@media (min-width: 1024px) {
  th {
    position: sticky;
    top: 0;
    z-index: 10;
  }
}

/* Details/Summary (FAQ accordions) */
details {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: 1rem;
  overflow: hidden;
  transition: box-shadow 0.2s ease;
}

details:hover {
  box-shadow: var(--shadow);
}

details[open] {
  box-shadow: var(--shadow);
}

summary {
  background-color: var(--color-bg);
  padding: 1.5rem;
  cursor: pointer;
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: bold;
  color: var(--color-primary);
  border-bottom: 1px solid var(--color-border);
  transition: background-color 0.2s ease;
}

summary:hover {
  background-color: rgba(46, 74, 63, 0.05);
}

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

details[open] summary {
  background-color: var(--color-primary);
  color: var(--color-surface);
}

details div {
  padding: 1.5rem;
}

details div p:last-child {
  margin-bottom: 0;
}

/* Footer */
footer {
  background-color: var(--color-primary);
  color: var(--color-surface);
  text-align: center;
  padding: 2rem 1rem;
  margin-top: 2rem;
}

footer p {
  margin: 0;
}

/* Responsive design */
@media (min-width: 768px) {
  nav {
    padding: 1.5rem 2rem;
  }
  
  .breadcrumb {
    padding: 0.75rem 2rem;
  }
  
  main {
    padding: 3rem 2rem;
  }
  
  article {
    padding: 3rem;
  }
  
  h1 {
    font-size: 3rem;
  }
  
  h2 {
    font-size: 2.25rem;
  }
}

@media (min-width: 1024px) {
  main {
    grid-template-columns: 1fr 300px;
    gap: 3rem;
  }
  
  .nav-links {
    gap: 3rem;
  }
}

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

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

/* Utility classes */
.faq-intro, .faq-footer {
  margin-bottom: 3rem;
}

.faq-list {
  margin-bottom: 2rem;
}

/* Print styles */
@media print {
  header, footer, .breadcrumb {
    display: none;
  }
  
  main {
    max-width: none;
    padding: 0;
    grid-template-columns: 1fr;
  }
  
  article {
    box-shadow: none;
    padding: 0;
  }
  
  a {
    color: var(--color-text);
    text-decoration: none;
  }
  
  a[href^="http"]:after {
    content: " (" attr(href) ")";
    font-size: 0.8em;
    color: var(--color-muted);
  }
}