:root {
  --color-primary: #2B5D4E;
  --color-secondary: #2E3A59;
  --color-accent: #C06B3E;
  --color-background: #F6F2EA;
  --color-surface: #FFFFFF;
  --color-text: #1B1F24;
  --color-text-muted: #5A6672;
  --color-border: #D9D2C6;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(27, 31, 36, 0.10);
  --measure: 68ch;
  --transition-speed: 0.25s;
}

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

*:focus {
  outline: none;
}

*:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

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: ui-serif, Georgia, Cambria, 'Times New Roman', Times, serif;
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-background);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 0;
  background: var(--color-primary);
  color: var(--color-surface);
  padding: 0.75rem 1.5rem;
  text-decoration: none;
  font-family: ui-sans-serif, system-ui, -apple-system, sans-serif;
  font-size: 0.875rem;
  font-weight: 600;
  z-index: 1000;
}

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

header {
  background-color: var(--color-surface);
  border-bottom: 2px solid var(--color-border);
  padding: 1.5rem 1rem;
  box-shadow: var(--shadow);
}

header .container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: flex-start;
}

header h1 {
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
}

nav {
  width: 100%;
}

nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

nav a {
  display: inline-block;
  padding: 0.5rem 1rem;
  background-color: var(--color-background);
  color: var(--color-text);
  text-decoration: none;
  border-radius: var(--radius);
  font-family: ui-sans-serif, system-ui, -apple-system, sans-serif;
  font-size: 0.9375rem;
  font-weight: 500;
  border: 1px solid var(--color-border);
  transition: background-color var(--transition-speed), color var(--transition-speed), border-color var(--transition-speed);
}

nav a:hover {
  background-color: var(--color-primary);
  color: var(--color-surface);
  border-color: var(--color-primary);
}

nav a:focus-visible {
  background-color: var(--color-secondary);
  color: var(--color-surface);
  border-color: var(--color-secondary);
}

nav[aria-label="Breadcrumb"] {
  padding: 1rem 0;
  margin-bottom: 1.5rem;
}

nav[aria-label="Breadcrumb"] ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  font-family: ui-sans-serif, system-ui, -apple-system, sans-serif;
  font-size: 0.875rem;
}

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

nav[aria-label="Breadcrumb"] a {
  color: var(--color-primary);
  text-decoration: none;
  padding: 0;
  background: none;
  border: none;
  border-radius: 0;
  transition: color var(--transition-speed);
}

nav[aria-label="Breadcrumb"] a:hover {
  color: var(--color-accent);
  background: none;
  border: none;
}

nav[aria-label="Breadcrumb"] a:focus-visible {
  background: none;
  color: var(--color-accent);
  border: none;
}

main {
  flex: 1;
  padding: 2rem 1rem;
}

.container {
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

article {
  background-color: var(--color-surface);
  padding: 2rem 1.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 2rem;
}

section {
  margin-bottom: 3rem;
}

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

.flow > * + * {
  margin-top: 1.5rem;
}

h1 {
  font-size: clamp(1.75rem, 5vw, 2.5rem);
  line-height: 1.2;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 1.5rem;
  max-width: var(--measure);
}

h2 {
  font-size: clamp(1.5rem, 4vw, 2rem);
  line-height: 1.3;
  font-weight: 700;
  color: var(--color-secondary);
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  max-width: var(--measure);
}

h3 {
  font-size: clamp(1.25rem, 3vw, 1.5rem);
  line-height: 1.4;
  font-weight: 600;
  color: var(--color-secondary);
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  max-width: var(--measure);
}

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

a {
  color: var(--color-primary);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
  transition: color var(--transition-speed), text-decoration-color var(--transition-speed);
}

a:hover {
  color: var(--color-accent);
  text-decoration-thickness: 2px;
}

a:focus-visible {
  color: var(--color-accent);
}

.muted {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

blockquote {
  border-left: 4px solid var(--color-accent);
  padding: 1.5rem 1.5rem 1.5rem 2rem;
  margin: 2rem 0;
  background-color: var(--color-background);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-style: italic;
  color: var(--color-secondary);
  max-width: var(--measure);
}

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

table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  font-size: 0.9375rem;
  box-shadow: var(--shadow);
}

table caption {
  font-weight: 600;
  text-align: left;
  padding: 1rem;
  background-color: var(--color-background);
  color: var(--color-secondary);
  font-size: 1.125rem;
}

thead {
  background-color: var(--color-primary);
  color: var(--color-surface);
  font-family: ui-sans-serif, system-ui, -apple-system, sans-serif;
  font-weight: 600;
}

th {
  padding: 1rem;
  text-align: left;
  font-weight: 600;
}

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

tbody tr {
  transition: background-color var(--transition-speed);
}

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

tbody tr:hover {
  background-color: rgba(43, 93, 78, 0.08);
}

.table-wrapper {
  overflow-x: auto;
  margin: 2rem 0;
  border-radius: var(--radius);
}

details {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 1rem;
  box-shadow: 0 2px 8px rgba(27, 31, 36, 0.06);
}

details[open] {
  padding-bottom: 1.5rem;
}

summary {
  font-weight: 600;
  color: var(--color-secondary);
  cursor: pointer;
  padding: 0.5rem;
  margin: -0.5rem;
  border-radius: calc(var(--radius) - 2px);
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  transition: background-color var(--transition-speed), color var(--transition-speed);
  font-family: ui-sans-serif, system-ui, -apple-system, sans-serif;
  font-size: 1rem;
}

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

summary::before {
  content: "▸";
  display: inline-block;
  font-size: 1.25rem;
  transition: transform var(--transition-speed);
  color: var(--color-primary);
  flex-shrink: 0;
}

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

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

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

details .flow {
  margin-top: 1rem;
  padding-left: 2rem;
}

details p {
  font-size: 1rem;
}

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

aside h2,
aside h3 {
  font-size: 1.25rem;
  margin-top: 0;
  color: var(--color-secondary);
}

aside ul {
  list-style: none;
  padding-left: 0;
}

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

aside li:last-child {
  border-bottom: none;
}

aside a {
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
}

aside a::before {
  content: "→";
  color: var(--color-accent);
  font-weight: bold;
}

ul,
ol {
  padding-left: 1.5rem;
  margin-bottom: 1rem;
  max-width: var(--measure);
}

li {
  margin-bottom: 0.5rem;
}

.pill {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background-color: var(--color-primary);
  color: var(--color-surface);
  border-radius: 999px;
  font-size: 0.8125rem;
  font-weight: 600;
  font-family: ui-sans-serif, system-ui, -apple-system, sans-serif;
}

footer {
  background-color: var(--color-secondary);
  color: var(--color-surface);
  padding: 2rem 1rem;
  margin-top: auto;
  text-align: center;
  font-family: ui-sans-serif, system-ui, -apple-system, sans-serif;
  font-size: 0.875rem;
}

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

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

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

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

  nav ul {
    gap: 1rem;
  }

  article {
    padding: 3rem 2.5rem;
  }

  main {
    padding: 3rem 2rem;
  }

  body {
    display: grid;
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr auto;
    grid-template-areas:
      "header"
      "main"
      "footer";
  }

  header {
    grid-area: header;
  }

  main {
    grid-area: main;
  }

  footer {
    grid-area: footer;
  }

  thead th {
    position: sticky;
    top: 0;
    z-index: 10;
  }

  blockquote {
    padding: 2rem 2rem 2rem 2.5rem;
  }
}

@media (min-width: 1024px) {
  body {
    font-size: 1.1875rem;
  }

  header {
    padding: 2rem 2rem;
  }

  main {
    padding: 4rem 2rem;
  }

  article {
    padding: 4rem 3.5rem;
  }

  main .container {
    display: grid;
    grid-template-columns: 1fr minmax(auto, 320px);
    gap: 3rem;
    align-items: start;
  }

  main .container > article {
    grid-column: 1;
  }

  main .container > aside {
    grid-column: 2;
    position: sticky;
    top: 2rem;
  }

  section {
    margin-bottom: 4rem;
  }

  h2 {
    margin-top: 3rem;
  }
}

@media print {
  * {
    background: white !important;
    color: black !important;
    box-shadow: none !important;
    text-shadow: none !important;
  }

  a,
  a:visited {
    text-decoration: underline;
  }

  a[href]::after {
    content: " (" attr(href) ")";
    font-size: 0.875rem;
  }

  nav[aria-label="Breadcrumb"] a[href]::after,
  nav a[href]::after {
    content: "";
  }

  header,
  footer,
  nav:not([aria-label="Breadcrumb"]),
  aside {
    display: none;
  }

  article {
    box-shadow: none;
    border: 1px solid #ccc;
  }

  details summary::before {
    content: "";
  }

  details[open] summary {
    margin-bottom: 0.5rem;
  }

  h1,
  h2,
  h3 {
    page-break-after: avoid;
  }

  table,
  blockquote {
    page-break-inside: avoid;
  }
}