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

:root {
  --color-primary: #2d6a4f;
  --color-secondary: #1b4332;
  --color-accent: #d8f3dc;
  --color-bg: #ffffff;
  --color-surface: #f0faf4;
  --color-text: #1b3a2a;
  --color-text-muted: #5c7a6b;
  --color-border: #c8ddd0;
  --font-main: 'Trebuchet MS', 'Lucida Sans', 'Lucida Grande', sans-serif;
  --max-width: 1100px;
  --radius: 0;
}

html {
  font-size: 16px;
  line-height: 1.6;
}

body {
  font-family: var(--font-main);
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
  color: var(--color-secondary);
  text-shadow: 1px 1px 0 rgba(45, 106, 79, 0.1);
}

h1 {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
  letter-spacing: -0.5px;
  border-left: 6px solid var(--color-primary);
  padding-left: 1rem;
}

h2 {
  font-size: 2rem;
  margin-top: 2rem;
  margin-bottom: 1.25rem;
  border-bottom: 3px solid var(--color-accent);
  padding-bottom: 0.5rem;
}

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

h3::before {
  content: '';
  position: absolute;
  left: -1rem;
  top: 0.5rem;
  width: 4px;
  height: 60%;
  background-color: var(--color-primary);
}

h4 {
  font-size: 1.25rem;
  margin-top: 1.25rem;
  color: var(--color-primary);
}

h5 {
  font-size: 1.125rem;
  margin-top: 1rem;
}

h6 {
  font-size: 1rem;
  margin-top: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

p {
  margin-bottom: 1rem;
  font-size: 1.0625rem;
  line-height: 1.7;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

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

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

strong {
  font-weight: 700;
  color: var(--color-secondary);
}

em {
  font-style: italic;
  color: var(--color-text);
}

blockquote {
  margin: 2rem 0;
  padding: 1.5rem;
  background-color: var(--color-surface);
  border-left: 4px solid var(--color-primary);
  font-size: 1.125rem;
  font-style: italic;
  color: var(--color-text-muted);
}

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

::selection {
  background-color: var(--color-primary);
  color: var(--color-bg);
}

.site-header {
  background-color: var(--color-secondary);
  color: var(--color-bg);
  padding: 1.5rem 0;
  border-bottom: 4px solid var(--color-primary);
  box-shadow: 0 2px 0 var(--color-accent);
}

.site-header .container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.site-header h1 {
  color: var(--color-bg);
  border-left: none;
  padding-left: 0;
  margin-bottom: 0;
  font-size: 2rem;
  text-shadow: 2px 2px 0 rgba(0, 0, 0, 0.2);
}

.site-nav {
  background-color: var(--color-primary);
  padding: 0;
}

.site-nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0;
}

.site-nav li {
  flex: 1 1 auto;
}

.site-nav a {
  display: block;
  padding: 1rem 1.5rem;
  color: var(--color-bg);
  border-bottom: none;
  text-align: center;
  font-weight: 600;
  border-right: 1px solid rgba(255, 255, 255, 0.2);
  transition: background-color 0.2s ease, box-shadow 0.2s ease;
}

.site-nav li:last-child a {
  border-right: none;
}

.site-nav a:hover {
  background-color: var(--color-secondary);
  color: var(--color-accent);
  box-shadow: inset 0 -3px 0 var(--color-accent);
}

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

.site-main {
  flex: 1;
  padding: 2rem 0;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1rem;
}

.breadcrumbs {
  margin-bottom: 2rem;
  padding: 0.75rem;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  font-size: 0.9375rem;
}

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

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

.breadcrumbs li:last-child::after {
  content: '';
}

.breadcrumbs a {
  color: var(--color-primary);
  border-bottom: none;
}

.breadcrumbs a:hover {
  text-decoration: underline;
}

.card {
  background-color: var(--color-bg);
  border: 2px solid var(--color-border);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  box-shadow: 0 4px 0 var(--color-accent), 0 4px 8px rgba(27, 67, 50, 0.1);
  border-color: var(--color-primary);
}

.card h2, .card h3 {
  margin-top: 0;
}

.card h2 {
  border-bottom-color: var(--color-primary);
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  background-color: var(--color-bg);
  border: 2px solid var(--color-border);
}

table thead {
  background-color: var(--color-secondary);
  color: var(--color-bg);
}

table th {
  padding: 1rem;
  text-align: left;
  font-weight: 700;
  text-shadow: 1px 1px 0 rgba(0, 0, 0, 0.2);
  border-bottom: 3px solid var(--color-primary);
}

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

table tbody tr:nth-child(odd) {
  background-color: var(--color-surface);
}

table tbody tr:hover {
  background-color: var(--color-accent);
  transition: background-color 0.2s ease;
}

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

details {
  margin: 1.5rem 0;
  border: 2px solid var(--color-border);
  background-color: var(--color-bg);
}

summary {
  padding: 1rem 1.5rem;
  background-color: var(--color-surface);
  cursor: pointer;
  font-weight: 700;
  color: var(--color-secondary);
  list-style: none;
  border-bottom: 2px solid transparent;
  transition: background-color 0.2s ease, border-color 0.2s ease;
  position: relative;
  padding-left: 3rem;
}

summary::before {
  content: '▸';
  position: absolute;
  left: 1rem;
  transition: transform 0.2s ease;
}

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

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

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

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

details div {
  padding: 1.5rem;
}

.site-footer {
  background-color: var(--color-secondary);
  color: var(--color-bg);
  padding: 2rem 0;
  margin-top: 3rem;
  border-top: 4px solid var(--color-primary);
  box-shadow: 0 -2px 0 var(--color-accent);
}

.site-footer p {
  color: var(--color-bg);
  margin-bottom: 0.5rem;
}

.site-footer a {
  color: var(--color-accent);
  border-bottom-color: transparent;
}

.site-footer a:hover {
  color: var(--color-bg);
  border-bottom-color: var(--color-bg);
}

@media (min-width: 768px) {
  h1 {
    font-size: 3rem;
  }

  h2 {
    font-size: 2.25rem;
  }

  h3 {
    font-size: 1.75rem;
  }

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

  .site-header h1 {
    font-size: 2.5rem;
  }

  .site-nav ul {
    justify-content: center;
  }

  .site-nav li {
    flex: 0 1 auto;
  }

  .site-main {
    padding: 3rem 0;
  }

  .container {
    padding: 0 2rem;
  }

  .card {
    padding: 2rem;
  }

  table th,
  table td {
    padding: 1.25rem;
  }
}

@media (min-width: 1024px) {
  h1 {
    font-size: 3.5rem;
  }

  h2 {
    font-size: 2.5rem;
  }

  h3 {
    font-size: 2rem;
  }

  .site-header h1 {
    font-size: 3rem;
  }

  .site-main {
    padding: 4rem 0;
  }

  .card {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  p {
    font-size: 1.125rem;
  }

  blockquote {
    padding: 2rem;
    margin: 2.5rem 0;
    font-size: 1.25rem;
  }
}

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

@media print {
  .site-header,
  .site-nav,
  .site-footer,
  .breadcrumbs {
    display: none;
  }

  .site-main {
    padding: 0;
  }

  .container {
    max-width: 100%;
    padding: 0;
  }

  a {
    color: var(--color-text);
    border-bottom: none;
  }

  a::after {
    content: " (" attr(href) ")";
    font-size: 0.875rem;
    color: var(--color-text-muted);
  }

  .card {
    border: 1px solid var(--color-border);
    box-shadow: none;
    page-break-inside: avoid;
  }

  table {
    page-break-inside: avoid;
  }

  h1, h2, h3, h4, h5, h6 {
    page-break-after: avoid;
  }
}