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

:root {
  --color-primary: #a0522d;
  --color-secondary: #6b3410;
  --color-accent: #f4c89a;
  --color-bg: #fffdf8;
  --color-surface: #fdf5eb;
  --color-text: #3e1d08;
  --color-text-muted: #8d7560;
  --color-border: #ddd0be;
  --font-main: 'Georgia', 'Times New Roman', 'Palatino', serif;
  --max-width: 1100px;
  --radius: 0px;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 4rem;
  --transition-speed: 0.2s;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  font-size: 18px;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  background-image: 
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 49px,
      var(--color-border) 49px,
      var(--color-border) 50px
    );
  background-size: 50px 50px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-secondary);
  margin-bottom: var(--spacing-sm);
  letter-spacing: -0.02em;
}

h1 {
  font-size: 2.5rem;
  border-bottom: 4px solid var(--color-primary);
  padding-bottom: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
  position: relative;
}

h1::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 80px;
  height: 4px;
  background-color: var(--color-accent);
}

h2 {
  font-size: 2rem;
  margin-top: var(--spacing-lg);
  position: relative;
  padding-left: var(--spacing-sm);
}

h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background-color: var(--color-primary);
}

h3 {
  font-size: 1.5rem;
  margin-top: var(--spacing-md);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

h5 {
  font-size: 1.1rem;
  margin-top: var(--spacing-sm);
}

h6 {
  font-size: 1rem;
  margin-top: var(--spacing-sm);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

p {
  margin-bottom: var(--spacing-sm);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color var(--transition-speed) ease, 
              border-color var(--transition-speed) ease,
              background-color var(--transition-speed) ease;
  position: relative;
}

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

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

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

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

blockquote {
  margin: var(--spacing-md) 0;
  padding: var(--spacing-md);
  background-color: var(--color-surface);
  border-left: 6px solid var(--color-primary);
  border-top: 2px solid var(--color-border);
  border-right: 2px solid var(--color-border);
  border-bottom: 2px solid var(--color-border);
  position: relative;
  font-style: italic;
  color: var(--color-text-muted);
}

blockquote::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 40px;
  height: 40px;
  background-color: var(--color-primary);
  clip-path: polygon(100% 0, 0 0, 100% 100%);
}

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

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

.site-header {
  background-color: var(--color-surface);
  border-bottom: 4px solid var(--color-secondary);
  position: relative;
  box-shadow: 0 4px 0 0 var(--color-border);
}

.site-header::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  right: 0;
  height: 2px;
  background: repeating-linear-gradient(
    90deg,
    var(--color-border),
    var(--color-border) 10px,
    transparent 10px,
    transparent 20px
  );
}

.site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) var(--spacing-sm);
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.site-header h1 {
  margin: 0;
  font-size: 1.75rem;
  border: none;
  padding: 0;
}

.site-header h1::after {
  display: none;
}

.site-header a {
  border: none;
}

.site-nav {
  background-color: var(--color-secondary);
  border-bottom: 2px solid var(--color-border);
}

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

.site-nav li {
  position: relative;
}

.site-nav li::after {
  content: '';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 2px;
  height: 60%;
  background-color: var(--color-primary);
}

.site-nav li:last-child::after {
  display: none;
}

.site-nav a {
  display: block;
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--color-accent);
  border: none;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.9rem;
  transition: background-color var(--transition-speed) ease,
              color var(--transition-speed) ease;
}

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

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

.site-main {
  flex: 1;
  background-color: var(--color-bg);
  padding: var(--spacing-lg) 0;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
  background-color: var(--color-bg);
}

.breadcrumbs {
  margin-bottom: var(--spacing-md);
  padding: var(--spacing-sm);
  background-color: var(--color-surface);
  border: 2px solid var(--color-border);
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  align-items: center;
  font-size: 0.9rem;
  font-family: 'Courier New', monospace;
}

.breadcrumbs a {
  color: var(--color-primary);
  border: none;
  padding: 0.25rem 0.5rem;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
}

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

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

.breadcrumbs span:not(:last-child)::after {
  content: '→';
  margin-left: var(--spacing-xs);
  color: var(--color-primary);
  font-weight: bold;
}

.card {
  background-color: var(--color-surface);
  border: 3px solid var(--color-border);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  position: relative;
  transition: box-shadow var(--transition-speed) ease,
              border-color var(--transition-speed) ease;
}

.card::before {
  content: '';
  position: absolute;
  top: -3px;
  left: -3px;
  right: -3px;
  bottom: -3px;
  border: 1px solid var(--color-text-muted);
  opacity: 0;
  transition: opacity var(--transition-speed) ease;
  pointer-events: none;
}

.card:hover {
  border-color: var(--color-primary);
  box-shadow: 8px 8px 0 0 var(--color-accent);
}

.card:hover::before {
  opacity: 1;
}

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

.card > *:last-child {
  margin-bottom: 0;
}

table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin: var(--spacing-md) 0;
  border: 3px solid var(--color-secondary);
  background-color: var(--color-surface);
}

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

th {
  padding: var(--spacing-sm) var(--spacing-md);
  text-align: left;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.9rem;
  border-right: 2px solid var(--color-primary);
  position: relative;
}

th:last-child {
  border-right: none;
}

th::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--color-primary);
}

td {
  padding: var(--spacing-sm) var(--spacing-md);
  border-right: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

td:last-child {
  border-right: none;
}

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

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

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

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

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

details {
  margin: var(--spacing-md) 0;
  border: 3px solid var(--color-border);
  background-color: var(--color-surface);
}

summary {
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--color-primary);
  color: var(--color-bg);
  cursor: pointer;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  list-style: none;
  position: relative;
  transition: background-color var(--transition-speed) ease;
  user-select: none;
}

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

summary::after {
  content: '▼';
  position: absolute;
  right: var(--spacing-md);
  top: 50%;
  transform: translateY(-50%) rotate(-90deg);
  transition: transform var(--transition-speed) ease;
  font-family: 'Courier New', monospace;
}

details[open] summary::after {
  transform: translateY(-50%) rotate(0deg);
}

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

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

details > *:not(summary) {
  padding: var(--spacing-md);
}

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

.site-footer {
  background-color: var(--color-secondary);
  color: var(--color-accent);
  border-top: 4px solid var(--color-primary);
  margin-top: auto;
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: -8px;
  left: 0;
  right: 0;
  height: 2px;
  background: repeating-linear-gradient(
    90deg,
    var(--color-primary),
    var(--color-primary) 10px,
    transparent 10px,
    transparent 20px
  );
}

.site-footer .container {
  padding: var(--spacing-lg) var(--spacing-sm);
  display: grid;
  gap: var(--spacing-md);
}

.site-footer a {
  color: var(--color-accent);
  border-bottom: 2px solid transparent;
}

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

.site-footer p {
  margin: var(--spacing-xs) 0;
}

.site-footer h4 {
  color: var(--color-accent);
  border-bottom: 2px solid var(--color-primary);
  padding-bottom: var(--spacing-xs);
  margin-bottom: var(--spacing-sm);
}

ul, ol {
  margin-left: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
}

li {
  margin-bottom: var(--spacing-xs);
}

code, kbd, pre {
  font-family: 'Courier New', monospace;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 0.125rem 0.375rem;
  font-size: 0.9em;
}

pre {
  padding: var(--spacing-sm);
  overflow-x: auto;
  margin: var(--spacing-md) 0;
  border: 3px solid var(--color-border);
  border-left: 6px solid var(--color-primary);
}

pre code {
  border: none;
  padding: 0;
  background: transparent;
}

hr {
  border: none;
  height: 4px;
  background-color: var(--color-border);
  margin: var(--spacing-lg) 0;
  position: relative;
}

hr::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 40px;
  height: 40px;
  background-color: var(--color-primary);
  clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  border: 4px solid var(--color-border);
}

figure {
  margin: var(--spacing-md) 0;
}

figcaption {
  padding: var(--spacing-sm);
  background-color: var(--color-surface);
  border: 2px solid var(--color-border);
  border-top: none;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  font-style: italic;
}

input, textarea, select, button {
  font-family: var(--font-main);
  font-size: 1rem;
  padding: var(--spacing-sm);
  border: 2px solid var(--color-border);
  background-color: var(--color-bg);
  color: var(--color-text);
  border-radius: var(--radius);
  transition: border-color var(--transition-speed) ease,
              box-shadow var(--transition-speed) ease;
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-accent);
}

button {
  background-color: var(--color-primary);
  color: var(--color-bg);
  border: 3px solid var(--color-secondary);
  font-weight: 700;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: background-color var(--transition-speed) ease,
              border-color var(--transition-speed) ease,
              box-shadow var(--transition-speed) ease;
  position: relative;
}

button:hover {
  background-color: var(--color-secondary);
  border-color: var(--color-primary);
  box-shadow: 4px 4px 0 0 var(--color-accent);
}

button:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

button:active {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 0 var(--color-accent);
}

@media (min-width: 768px) {
  body {
    font-size: 19px;
  }

  h1 {
    font-size: 3rem;
  }

  h2 {
    font-size: 2.25rem;
  }

  h3 {
    font-size: 1.75rem;
  }

  .site-header .container {
    padding: var(--spacing-md) var(--spacing-md);
  }

  .site-header h1 {
    font-size: 2rem;
  }

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

  .site-nav a {
    padding: var(--spacing-sm) var(--spacing-lg);
  }

  .container {
    padding: 0 var(--spacing-md);
  }

  .site-footer .container {
    grid-template-columns: repeat(2, 1fr);
  }

  .card {
    padding: var(--spacing-lg);
  }
}

@media (min-width: 1024px) {
  body {
    font-size: 20px;
  }

  h1 {
    font-size: 3.5rem;
  }

  .site-header .container {
    padding: var(--spacing-lg) var(--spacing-md);
  }

  .site-main {
    padding: var(--spacing-xl) 0;
  }

  .site-footer .container {
    grid-template-columns: repeat(3, 1fr);
    padding: var(--spacing-xl) var(--spacing-md);
  }

  .card:hover {
    box-shadow: 12px 12px 0 0 var(--color-accent);
  }

  blockquote {
    margin: var(--spacing-lg) var(--spacing-md);
    padding: var(--spacing-lg);
  }
}

@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;
  }

  .site-header {
    border-bottom: 2px solid black;
  }

  .site-nav, .site-footer {
    display: none;
  }

  .site-main {
    padding: 0;
  }

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

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

  .card {
    border: 1px solid black;
    page-break-inside: avoid;
  }

  table {
    border: 1px solid black;
  }

  thead {
    background: #f0f0f0;
    color: black;
  }

  img {
    border: 1px solid black;
  }
}