* {
  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: 'Courier New', 'Lucida Console', Monaco, monospace;
  --max-width: 1100px;
  --radius: 0px;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --border-width: 2px;
  --transition-speed: 0.2s;
}

body {
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  background-image: 
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 2px,
      rgba(160, 82, 45, 0.02) 2px,
      rgba(160, 82, 45, 0.02) 4px
    );
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr auto;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: bold;
  line-height: 1.2;
  color: var(--color-secondary);
  margin-bottom: var(--spacing-md);
  border-bottom: var(--border-width) solid var(--color-border);
  padding-bottom: var(--spacing-sm);
}

h1 {
  font-size: 2.5rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  border-bottom-width: 4px;
  border-bottom-color: var(--color-primary);
}

h2 {
  font-size: 2rem;
  border-bottom-width: 3px;
}

h3 {
  font-size: 1.5rem;
}

h4 {
  font-size: 1.25rem;
}

h5 {
  font-size: 1.1rem;
}

h6 {
  font-size: 1rem;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: 1px 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: var(--border-width) solid var(--color-primary);
  outline-offset: 2px;
  background-color: var(--color-accent);
}

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

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

blockquote {
  margin: var(--spacing-lg) 0;
  padding: var(--spacing-md) var(--spacing-lg);
  background-color: var(--color-surface);
  border-left: 6px solid var(--color-primary);
  border-top: var(--border-width) solid var(--color-border);
  border-bottom: var(--border-width) solid var(--color-border);
  position: relative;
}

blockquote::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 30px;
  height: 30px;
  background: linear-gradient(135deg, transparent 50%, var(--color-border) 50%);
}

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-primary);
  padding: var(--spacing-lg) var(--spacing-md);
  position: relative;
}

.site-header::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: repeating-linear-gradient(
    90deg,
    var(--color-secondary),
    var(--color-secondary) 10px,
    transparent 10px,
    transparent 20px
  );
}

.site-nav {
  background-color: var(--color-secondary);
  border-bottom: var(--border-width) solid var(--color-text);
  position: relative;
}

.site-nav::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: repeating-linear-gradient(
    90deg,
    var(--color-accent),
    var(--color-accent) 5px,
    transparent 5px,
    transparent 10px
  );
}

.site-nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--spacing-xs) var(--spacing-md);
}

.site-nav li {
  margin: 0;
}

.site-nav a {
  display: block;
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--color-accent);
  border: none;
  border-right: var(--border-width) solid var(--color-primary);
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 1px;
}

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

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

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

.site-footer {
  background-color: var(--color-text);
  color: var(--color-accent);
  border-top: 4px solid var(--color-primary);
  padding: var(--spacing-lg) var(--spacing-md);
  margin-top: var(--spacing-xl);
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: repeating-linear-gradient(
    90deg,
    var(--color-accent),
    var(--color-accent) 15px,
    transparent 15px,
    transparent 30px
  );
}

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

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

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

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--color-surface);
  border: var(--border-width) solid var(--color-border);
  border-left: 6px solid var(--color-primary);
  font-size: 0.9rem;
}

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

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

.breadcrumbs::after {
  content: '';
  display: block;
  position: absolute;
  right: var(--spacing-sm);
  top: 50%;
  transform: translateY(-50%);
  width: 0;
  height: 0;
  border-left: 8px solid var(--color-primary);
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
}

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

.breadcrumbs span::before {
  content: '▸';
  margin: 0 var(--spacing-xs);
  color: var(--color-primary);
}

.breadcrumbs span:first-child::before {
  display: none;
}

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

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(
    90deg,
    var(--color-primary) 0%,
    var(--color-secondary) 100%
  );
}

.card::after {
  content: '';
  position: absolute;
  bottom: 0;
  right: 0;
  width: 40px;
  height: 40px;
  background: 
    linear-gradient(45deg, transparent 50%, var(--color-border) 50%),
    linear-gradient(-45deg, transparent 50%, var(--color-border) 50%);
  background-size: 20px 20px;
  background-position: 0 0, 20px 0;
  background-repeat: no-repeat;
}

.card:hover {
  box-shadow: 0 4px 0 0 var(--color-primary);
  border-color: var(--color-primary);
}

.card h1, .card h2, .card h3, .card h4, .card h5, .card h6 {
  margin-top: 0;
}

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

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

table th {
  padding: var(--spacing-md);
  text-align: left;
  font-weight: bold;
  border-bottom: var(--border-width) solid var(--color-primary);
  border-right: 1px solid var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

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

table td {
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
  border-right: 1px solid var(--color-border);
  transition: background-color var(--transition-speed) ease;
}

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

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

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

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

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

details {
  margin: var(--spacing-lg) 0;
  border: var(--border-width) solid var(--color-border);
  background-color: var(--color-surface);
}

summary {
  padding: var(--spacing-md);
  cursor: pointer;
  font-weight: bold;
  color: var(--color-secondary);
  background-color: var(--color-surface);
  border-bottom: var(--border-width) solid transparent;
  transition: background-color var(--transition-speed) ease, 
              border-color var(--transition-speed) ease,
              color var(--transition-speed) ease;
  list-style: none;
  position: relative;
  padding-left: calc(var(--spacing-md) + 20px);
}

summary::before {
  content: '▸';
  position: absolute;
  left: var(--spacing-md);
  transition: transform var(--transition-speed) ease;
  color: var(--color-primary);
  font-size: 1.2rem;
}

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

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

summary:focus-visible {
  outline: var(--border-width) 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[open] summary::before {
  color: var(--color-bg);
}

details > *:not(summary) {
  padding: var(--spacing-md);
  animation: slideDown var(--transition-speed) ease;
}

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

input[type="text"],
input[type="email"],
input[type="password"],
input[type="search"],
input[type="url"],
input[type="tel"],
input[type="number"],
textarea,
select {
  width: 100%;
  padding: var(--spacing-sm);
  border: var(--border-width) solid var(--color-border);
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-main);
  font-size: 1rem;
  transition: border-color var(--transition-speed) ease, 
              box-shadow var(--transition-speed) ease;
  margin-bottom: var(--spacing-md);
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(160, 82, 45, 0.1);
}

button,
.button {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  background-color: var(--color-primary);
  color: var(--color-bg);
  border: var(--border-width) solid var(--color-secondary);
  font-family: var(--font-main);
  font-size: 1rem;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 1px;
  cursor: pointer;
  transition: background-color var(--transition-speed) ease, 
              color var(--transition-speed) ease,
              box-shadow var(--transition-speed) ease;
  position: relative;
}

button::after,
.button::after {
  content: '';
  position: absolute;
  bottom: -6px;
  right: -6px;
  width: 100%;
  height: 100%;
  border: var(--border-width) solid var(--color-text);
  z-index: -1;
  transition: bottom var(--transition-speed) ease, 
              right var(--transition-speed) ease;
}

button:hover,
.button:hover {
  background-color: var(--color-secondary);
  color: var(--color-accent);
}

button:hover::after,
.button:hover::after {
  bottom: -3px;
  right: -3px;
}

button:focus-visible,
.button:focus-visible {
  outline: var(--border-width) solid var(--color-accent);
  outline-offset: 2px;
}

button:active,
.button:active {
  transform: translate(3px, 3px);
}

button:active::after,
.button:active::after {
  bottom: -3px;
  right: -3px;
}

hr {
  border: none;
  height: 4px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    var(--color-primary) 10%,
    var(--color-secondary) 50%,
    var(--color-primary) 90%,
    transparent 100%
  );
  margin: var(--spacing-xl) 0;
  position: relative;
}

hr::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 20px;
  height: 20px;
  background-color: var(--color-bg);
  border: var(--border-width) solid var(--color-primary);
}

ul, ol {
  margin: var(--spacing-md) 0;
  padding-left: var(--spacing-xl);
}

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

ul li::marker {
  color: var(--color-primary);
}

ol li::marker {
  color: var(--color-primary);
  font-weight: bold;
}

code {
  font-family: var(--font-main);
  background-color: var(--color-surface);
  color: var(--color-secondary);
  padding: 2px 6px;
  border: 1px solid var(--color-border);
  font-size: 0.9em;
}

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

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

@media (min-width: 768px) {
  body {
    font-size: 18px;
  }

  h1 {
    font-size: 3rem;
  }

  h2 {
    font-size: 2.25rem;
  }

  h3 {
    font-size: 1.75rem;
  }

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

  .card {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

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

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

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

  .site-main {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }

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

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

  details > *:not(summary) {
    animation: none;
  }

  summary::before {
    transition: none;
  }
}

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

  body {
    background: white;
    color: black;
  }

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

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

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

  button,
  .button {
    display: none;
  }
}