:root {
  --color-primary: #2E2A3B;
  --color-secondary: #6C5A7A;
  --color-accent: #C86B4A;
  --color-background: #FBF7F2;
  --color-surface: #FFFFFF;
  --color-text: #1B1A1F;
  --color-text-muted: #5E5A66;
  --color-border: #E3D9D0;
  --radius: 2px;
  --shadow: 0 1px 3px rgba(27, 26, 31, 0.08);
  --space: 1rem;
  --maxw: 1280px;
  --grid-gap: 1.5rem;
}

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

html {
  font-size: 100%;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-background);
  font-feature-settings: "kern" 1, "liga" 1;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 0.75em;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2rem, 1.5rem + 2vw, 3rem);
  margin-bottom: 1em;
}

h2 {
  font-size: clamp(1.5rem, 1.25rem + 1vw, 2.25rem);
  margin-top: 1.5em;
}

h3 {
  font-size: clamp(1.25rem, 1.125rem + 0.5vw, 1.75rem);
  margin-top: 1.25em;
}

h4 {
  font-size: clamp(1.125rem, 1rem + 0.25vw, 1.375rem);
}

p, ul, ol, dl {
  margin-bottom: 1em;
}

ul, ol {
  padding-left: 1.5em;
}

a {
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
  transition: color 0.2s ease, text-underline-offset 0.2s ease;
}

a:hover {
  color: var(--color-primary);
  text-underline-offset: 4px;
}

a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px rgba(200, 107, 74, 0.2);
  border-radius: var(--radius);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: var(--color-surface);
  padding: 0.5rem 1rem;
  text-decoration: none;
  z-index: 100;
}

.skip-link:focus {
  top: 0;
}

body {
  display: grid;
  grid-template-columns: 1fr;
  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);
  position: sticky;
  top: 0;
  z-index: 50;
}

header .header-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: var(--space);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

@media (min-width: 768px) {
  header .header-inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem var(--space);
  }
}

header .site-name {
  font-size: clamp(1.25rem, 1.125rem + 0.5vw, 1.5rem);
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
  letter-spacing: -0.01em;
}

header .site-name:hover {
  color: var(--color-accent);
}

header nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
}

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

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

main {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: calc(var(--space) * 2) var(--space);
  width: 100%;
}

@media (min-width: 768px) {
  main {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: var(--grid-gap);
    padding: calc(var(--space) * 3) var(--space);
  }
}

@media (min-width: 1024px) {
  main {
    grid-template-columns: repeat(12, 1fr);
    gap: calc(var(--grid-gap) * 1.25);
  }
}

main > section,
main > article {
  grid-column: 1 / -1;
}

@media (min-width: 768px) {
  main > section,
  main > article {
    grid-column: 1 / 9;
  }
}

@media (min-width: 1024px) {
  main > section,
  main > article {
    grid-column: 2 / 12;
  }
}

main > aside {
  grid-column: 1 / -1;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 2rem;
}

@media (min-width: 1024px) {
  main > aside {
    grid-column: 9 / 13;
    grid-row: 1;
  }
}

section {
  margin-bottom: 3rem;
}

.breadcrumb {
  margin-bottom: 2rem;
}

.breadcrumb ol {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.breadcrumb li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.breadcrumb li:not(:last-child)::after {
  content: "›";
  color: var(--color-border);
  font-weight: 300;
}

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

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

blockquote {
  margin: 2rem 0;
  padding: 1.5rem;
  padding-left: 1.25rem;
  background-color: rgba(108, 90, 122, 0.05);
  border-left: 4px solid var(--color-accent);
  font-style: normal;
  color: var(--color-text);
}

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

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

summary {
  padding: 1rem 1.25rem;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  color: var(--color-primary);
  transition: background-color 0.2s ease, color 0.2s ease;
  user-select: none;
}

summary::-webkit-details-marker {
  display: none;
}

summary::before {
  content: "▸";
  display: inline-block;
  margin-right: 0.5rem;
  transition: transform 0.2s ease;
  color: var(--color-accent);
}

details[open] summary::before {
  transform: rotate(90deg);
}

summary:hover {
  background-color: var(--color-background);
  color: var(--color-accent);
}

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

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

details > *:not(summary) {
  padding: 1rem 1.25rem;
}

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

.table-wrapper {
  overflow-x: auto;
  margin: 2rem 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background-color: var(--color-surface);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

thead {
  background-color: var(--color-primary);
  color: var(--color-surface);
}

@media (min-width: 768px) {
  thead {
    position: sticky;
    top: 0;
  }
}

th, td {
  padding: 0.875rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

th {
  font-weight: 600;
  letter-spacing: 0.01em;
}

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

tbody tr:nth-child(even) {
  background-color: rgba(251, 247, 242, 0.5);
}

tbody tr:hover {
  background-color: rgba(200, 107, 74, 0.08);
}

tbody tr:last-child td {
  border-bottom: none;
}

footer {
  background-color: var(--color-primary);
  color: var(--color-surface);
  padding: 2rem var(--space);
  margin-top: 4rem;
}

footer .footer-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  text-align: center;
}

@media (min-width: 768px) {
  footer .footer-inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    text-align: left;
  }
}

footer a {
  color: var(--color-surface);
  text-decoration: underline;
}

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

footer p {
  margin: 0;
  font-size: 0.9rem;
}

.quick-facts {
  list-style: none;
  padding: 0;
}

.quick-facts li {
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--color-border);
}

.quick-facts li:last-child {
  border-bottom: none;
}

.quick-facts strong {
  color: var(--color-primary);
  display: block;
  margin-bottom: 0.25rem;
}

@media print {
  * {
    background: transparent !important;
    color: black !important;
    box-shadow: none !important;
    text-shadow: none !important;
  }
  
  a, a:visited {
    text-decoration: underline;
  }
  
  a[href]::after {
    content: " (" attr(href) ")";
  }
  
  header, footer, nav, aside, .breadcrumb {
    display: none;
  }
  
  main {
    max-width: 100%;
    padding: 0;
  }
  
  h1, h2, h3 {
    page-break-after: avoid;
  }
  
  img {
    max-width: 100% !important;
  }
  
  p, h2, h3 {
    orphans: 3;
    widows: 3;
  }
  
  details {
    border: 1px solid #000;
  }
  
  summary::before {
    content: "";
  }
  
  details[open] summary {
    border-bottom: 1px solid #000;
  }
}