:root {
  --color-primary: #2B3A67;
  --color-secondary: #7A2E3A;
  --color-accent: #C98B2B;
  --color-background: #F6F2EA;
  --color-surface: #FFFFFF;
  --color-text: #14161A;
  --color-text-muted: #4B5563;
  --color-border: #D7D0C4;
  --cf-radius: 14px;
  --cf-shadow: 0 10px 30px rgba(20, 22, 26, 0.10);
  --transition-speed: 0.25s;
}

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

html {
  font-size: 100%;
  -webkit-text-size-adjust: 100%;
  line-height: 1.6;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
  background-color: var(--color-background);
  color: var(--color-text);
  font-size: 1.0625rem;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: Georgia, "Times New Roman", Times, serif;
  line-height: 1.3;
  margin-bottom: 0.75rem;
  font-weight: 700;
  color: var(--color-primary);
}

h1 {
  font-size: 2rem;
  margin-bottom: 1.25rem;
}

h2 {
  font-size: 1.625rem;
  margin-top: 2rem;
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.375rem;
  margin-top: 1.5rem;
}

h4 {
  font-size: 1.125rem;
}

p {
  margin-bottom: 1.25rem;
  max-width: 70ch;
}

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

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

a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: 2px;
}

ul, ol {
  margin-bottom: 1.25rem;
  padding-left: 2rem;
}

li {
  margin-bottom: 0.5rem;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: var(--color-surface);
  padding: 0.75rem 1.25rem;
  text-decoration: none;
  z-index: 100;
  border-radius: 0 0 var(--cf-radius) 0;
}

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

header {
  background-color: var(--color-surface);
  border-bottom: 2px solid var(--color-border);
  box-shadow: var(--cf-shadow);
  position: sticky;
  top: 0;
  z-index: 50;
}

header .header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 1rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: flex-start;
}

.site-name {
  font-family: Georgia, "Times New Roman", Times, serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  display: inline-block;
}

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

nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
}

nav li {
  margin: 0;
}

nav a {
  text-decoration: none;
  font-weight: 500;
  padding: 0.5rem 0.75rem;
  display: inline-block;
  border-radius: calc(var(--cf-radius) / 2);
  transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease;
}

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

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

.breadcrumb {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 0.75rem 1.25rem;
  font-size: 0.9375rem;
}

.breadcrumb ol {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  max-width: 1280px;
  margin: 0 auto;
}

.breadcrumb li {
  margin: 0;
  display: flex;
  align-items: center;
}

.breadcrumb li::after {
  content: "›";
  margin-left: 0.5rem;
  color: var(--color-text-muted);
}

.breadcrumb li:last-child::after {
  content: "";
}

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

main {
  max-width: 1280px;
  margin: 0 auto;
  padding: 2rem 1.25rem;
  min-height: 60vh;
}

.page-grid {
  display: block;
}

section {
  margin-bottom: 3rem;
  background-color: var(--color-surface);
  padding: 1.75rem;
  border-radius: var(--cf-radius);
  box-shadow: var(--cf-shadow);
}

.featured-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 2rem;
}

.card {
  background-color: var(--color-surface);
  padding: 1.5rem;
  border-radius: var(--cf-radius);
  border: 1px solid var(--color-border);
  transition: box-shadow var(--transition-speed) ease, transform var(--transition-speed) ease;
}

.card:hover {
  box-shadow: var(--cf-shadow);
  transform: translateY(-2px);
}

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

blockquote {
  margin: 2rem 0;
  padding: 1.25rem 1.5rem;
  background-color: rgba(194, 139, 43, 0.06);
  border-left: 4px solid var(--color-accent);
  border-radius: 0 var(--cf-radius) var(--cf-radius) 0;
  font-style: italic;
  color: var(--color-text);
}

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

table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  background-color: var(--color-surface);
  border-radius: var(--cf-radius);
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(20, 22, 26, 0.08);
  font-size: 0.9375rem;
}

caption {
  font-family: Georgia, "Times New Roman", Times, serif;
  font-size: 1.25rem;
  font-weight: 700;
  text-align: left;
  padding: 1rem 1rem 0.75rem;
  color: var(--color-primary);
  caption-side: top;
}

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

thead th {
  padding: 1rem;
  text-align: left;
  font-weight: 600;
  border-bottom: 2px solid var(--color-secondary);
}

tbody tr {
  border-bottom: 1px solid var(--color-border);
  transition: background-color var(--transition-speed) ease;
}

tbody tr:nth-child(even) {
  background-color: rgba(246, 242, 234, 0.3);
}

tbody tr:hover {
  background-color: rgba(194, 139, 43, 0.1);
}

tbody td {
  padding: 0.875rem 1rem;
  vertical-align: top;
}

.table-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 2rem 0;
}

details {
  margin-bottom: 1.25rem;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--cf-radius);
  overflow: hidden;
  transition: box-shadow var(--transition-speed) ease;
}

details:hover {
  box-shadow: 0 4px 12px rgba(20, 22, 26, 0.08);
}

details[open] {
  border-color: var(--color-accent);
  box-shadow: 0 4px 16px rgba(194, 139, 43, 0.15);
}

summary {
  padding: 1.125rem 1.5rem;
  cursor: pointer;
  font-weight: 600;
  color: var(--color-primary);
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease;
  user-select: none;
}

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

summary::after {
  content: "+";
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-accent);
  transition: transform var(--transition-speed) ease;
  flex-shrink: 0;
  margin-left: 1rem;
}

details[open] summary::after {
  content: "−";
  transform: rotate(0deg);
}

summary:hover {
  background-color: rgba(43, 58, 103, 0.05);
}

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

details .details-content {
  padding: 0 1.5rem 1.5rem;
  border-top: 1px solid var(--color-border);
  animation: slideDown var(--transition-speed) ease;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

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

.cta {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: var(--color-surface);
  padding: 2rem;
  border-radius: var(--cf-radius);
  text-align: center;
  margin: 3rem 0;
}

.cta h2 {
  color: var(--color-surface);
  margin-top: 0;
}

.cta p {
  color: rgba(255, 255, 255, 0.95);
  max-width: 100%;
}

.cta a {
  color: var(--color-surface);
  text-decoration: underline;
  text-decoration-color: var(--color-accent);
  font-weight: 600;
}

.cta a:hover {
  color: var(--color-accent);
  text-decoration-color: var(--color-surface);
}

footer {
  background-color: var(--color-primary);
  color: var(--color-surface);
  margin-top: 4rem;
  padding: 2rem 1.25rem 1.5rem;
  border-top: 4px solid var(--color-accent);
}

footer .footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

footer nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.75rem;
}

footer nav li {
  margin: 0;
}

footer a {
  color: var(--color-surface);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-speed) ease, color var(--transition-speed) ease;
}

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

footer a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

footer p {
  margin: 0;
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.85);
}

@media (min-width: 768px) {
  h1 {
    font-size: 2.5rem;
  }

  h2 {
    font-size: 2rem;
  }

  header .header-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .site-name {
    font-size: 1.75rem;
  }

  main {
    padding: 2.5rem 2rem;
  }

  .page-grid {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 2.5rem;
    align-items: start;
  }

  .page-grid aside {
    position: sticky;
    top: 6rem;
  }

  .featured-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }

  section {
    padding: 2rem;
  }

  footer .footer-inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }

  .breadcrumb {
    padding: 0.75rem 2rem;
  }
}

@media (min-width: 1024px) {
  h1 {
    font-size: 3rem;
  }

  main {
    padding: 3rem 2rem;
  }

  .featured-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-grid {
    grid-template-columns: 1fr 360px;
    gap: 3rem;
  }

  thead th {
    position: sticky;
    top: 4rem;
    z-index: 10;
    background-color: var(--color-primary);
  }

  section {
    padding: 2.5rem;
  }
}

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

@media print {
  body {
    background: white;
    color: black;
    font-size: 12pt;
  }

  header, footer, aside, nav, .breadcrumb {
    display: none;
  }

  main {
    max-width: 100%;
    padding: 0;
  }

  a {
    color: black;
    text-decoration: underline;
  }

  section {
    box-shadow: none;
    border: 1px solid #ccc;
    page-break-inside: avoid;
  }

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

  details[open] summary {
    display: none;
  }

  details .details-content {
    border: none;
    padding: 0;
  }
}