* {
  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: 'Courier New', 'Lucida Console', Monaco, monospace;
  --max-width: 1100px;
  --radius: 16px;
}

body {
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  background-image: linear-gradient(to bottom, var(--color-bg) 0%, var(--color-surface) 100%);
  background-attachment: fixed;
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr auto;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: bold;
  line-height: 1.3;
  color: var(--color-secondary);
  margin-bottom: 1rem;
  text-shadow: 1px 1px 0px var(--color-accent);
}

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

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

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

h4 {
  font-size: 1.25rem;
  margin-top: 1.25rem;
}

h5 {
  font-size: 1.1rem;
  margin-top: 1rem;
}

h6 {
  font-size: 1rem;
  margin-top: 1rem;
}

p {
  margin-bottom: 1rem;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: 2px solid var(--color-accent);
  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-primary);
  background-color: var(--color-accent);
}

a:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: 4px;
}

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

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

blockquote {
  margin: 2rem 0;
  padding: 1.5rem;
  background: linear-gradient(to right, var(--color-accent) 0%, var(--color-surface) 100%);
  border-left: 6px solid var(--color-primary);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--color-text);
  font-style: italic;
}

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

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  width: 100%;
}

.site-header {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: var(--color-accent);
  padding: 2rem 0;
  border-bottom: 4px solid var(--color-secondary);
  box-shadow: 0 4px 12px rgba(29, 67, 50, 0.15);
}

.site-header h1 {
  color: var(--color-accent);
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
  margin-bottom: 0.5rem;
}

.site-nav {
  background-color: var(--color-surface);
  border-bottom: 2px solid var(--color-border);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(27, 58, 42, 0.1);
}

.site-nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
}

.site-nav li {
  margin: 0;
}

.site-nav a {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background-color: var(--color-bg);
  border: 2px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-primary);
  font-weight: bold;
  border-bottom: 2px solid var(--color-border);
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.site-nav a:hover {
  background-color: var(--color-primary);
  color: var(--color-accent);
  border-color: var(--color-secondary);
  box-shadow: 0 4px 8px rgba(45, 106, 79, 0.2);
}

.site-nav a:focus-visible {
  outline: 3px solid var(--color-secondary);
  outline-offset: 2px;
}

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

.site-footer {
  background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-primary) 100%);
  color: var(--color-accent);
  padding: 2.5rem 0 1.5rem;
  border-top: 4px solid var(--color-secondary);
  margin-top: 4rem;
}

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

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

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
  padding: 1rem 1.5rem;
  background-color: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 0.9rem;
}

.breadcrumbs a {
  color: var(--color-primary);
  border-bottom: 1px solid var(--color-border);
}

.breadcrumbs a:hover {
  border-bottom-color: var(--color-primary);
}

.breadcrumbs span {
  color: var(--color-text-muted);
}

.card {
  background-color: var(--color-bg);
  border: 3px solid var(--color-border);
  border-radius: var(--radius);
  padding: 2rem;
  margin-bottom: 2rem;
  box-shadow: 0 2px 8px rgba(27, 58, 42, 0.08);
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  box-shadow: 0 6px 16px rgba(45, 106, 79, 0.15);
  border-color: var(--color-primary);
}

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

table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin: 2rem 0;
  background-color: var(--color-bg);
  border: 3px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}

table caption {
  padding: 1rem;
  font-weight: bold;
  color: var(--color-secondary);
  text-align: left;
  background-color: var(--color-surface);
  text-shadow: 1px 1px 0px var(--color-accent);
}

thead {
  background: linear-gradient(to bottom, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: var(--color-accent);
}

th {
  padding: 1rem;
  text-align: left;
  font-weight: bold;
  border-bottom: 3px solid var(--color-secondary);
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
}

td {
  padding: 1rem;
  border-bottom: 2px solid var(--color-border);
}

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

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

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

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

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

details {
  margin: 1.5rem 0;
  border: 3px solid var(--color-border);
  border-radius: var(--radius);
  background-color: var(--color-bg);
  overflow: hidden;
  transition: border-color 0.2s ease;
}

details:hover {
  border-color: var(--color-primary);
}

details[open] {
  border-color: var(--color-primary);
}

summary {
  padding: 1.25rem 1.5rem;
  background: linear-gradient(to right, var(--color-surface) 0%, var(--color-bg) 100%);
  cursor: pointer;
  font-weight: bold;
  color: var(--color-primary);
  border-bottom: 2px solid var(--color-border);
  transition: background-color 0.2s ease, color 0.2s ease;
  outline: none;
  list-style: none;
  user-select: none;
}

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

summary::before {
  content: '▶ ';
  display: inline-block;
  transition: transform 0.2s ease;
  margin-right: 0.5rem;
}

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

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

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

details[open] summary {
  background-color: var(--color-primary);
  color: var(--color-accent);
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
}

details > *:not(summary) {
  padding: 1.5rem;
  animation: slideDown 0.2s ease;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (min-width: 768px) {
  body {
    font-size: 17px;
  }

  h1 {
    font-size: 3rem;
  }

  h2 {
    font-size: 2.25rem;
  }

  h3 {
    font-size: 1.75rem;
  }

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

  .site-nav ul {
    gap: 1.5rem;
  }

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

  .container {
    padding: 0 2rem;
  }

  .card {
    padding: 2.5rem;
  }
}

@media (min-width: 1024px) {
  body {
    font-size: 18px;
  }

  h1 {
    font-size: 3.5rem;
  }

  h2 {
    font-size: 2.5rem;
  }

  h3 {
    font-size: 2rem;
  }

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

  .site-nav ul {
    gap: 2rem;
  }

  .site-main {
    padding: 5rem 0;
  }

  .card {
    padding: 3rem;
  }

  table {
    font-size: 1rem;
  }

  th, td {
    padding: 1.25rem;
  }
}

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

  summary::before {
    transition: none;
  }
}

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

  body {
    background: white;
    color: black;
  }

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

  .site-main {
    padding: 0;
  }

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

  .card {
    border: 1px solid black;
    box-shadow: none;
    page-break-inside: avoid;
  }

  table {
    border: 1px solid black;
  }

  thead {
    background: white;
    color: black;
  }

  th {
    border-bottom: 2px solid black;
  }

  td {
    border-bottom: 1px solid black;
  }
}