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

:root {
  --color-primary: #881337;
  --color-secondary: #4c0519;
  --color-accent: #fda4af;
  --color-bg: #fffbfb;
  --color-surface: #fef2f4;
  --color-text: #3b0712;
  --color-text-muted: #8b6b73;
  --color-border: #e8cdd2;
  --font-main: 'Courier New', 'Lucida Console', Monaco, monospace;
  --max-width: 1100px;
  --radius: 0;
  --transition-speed: 0.2s;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  font-size: 1rem;
  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
  );
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: bold;
  line-height: 1.2;
  margin-bottom: 1rem;
  color: var(--color-secondary);
  letter-spacing: -0.02em;
}

h1 {
  font-size: 2.5rem;
  border-bottom: 4px solid var(--color-primary);
  padding-bottom: 0.5rem;
  margin-bottom: 1.5rem;
  position: relative;
}

h1::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 60px;
  height: 4px;
  background-color: var(--color-accent);
}

h2 {
  font-size: 2rem;
  border-left: 6px solid var(--color-primary);
  padding-left: 1rem;
  margin-top: 2rem;
}

h3 {
  font-size: 1.5rem;
  position: relative;
  padding-left: 1.5rem;
}

h3::before {
  content: '■';
  position: absolute;
  left: 0;
  color: var(--color-primary);
}

h4 {
  font-size: 1.25rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

h5 {
  font-size: 1.1rem;
  color: var(--color-primary);
}

h6 {
  font-size: 1rem;
  color: var(--color-text-muted);
}

p {
  margin-bottom: 1rem;
}

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;
}

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

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

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

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

blockquote {
  margin: 2rem 0;
  padding: 1.5rem;
  background-color: var(--color-surface);
  border-left: 6px solid var(--color-primary);
  border-top: 2px solid var(--color-border);
  border-bottom: 2px solid var(--color-border);
  position: relative;
}

blockquote::before {
  content: '❝';
  position: absolute;
  top: 0.5rem;
  left: 0.5rem;
  font-size: 3rem;
  color: var(--color-accent);
  opacity: 0.3;
}

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

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

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

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

.site-header::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  right: 0;
  height: 4px;
  background: repeating-linear-gradient(
    90deg,
    var(--color-accent),
    var(--color-accent) 10px,
    transparent 10px,
    transparent 20px
  );
}

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

.site-header h1 {
  color: var(--color-bg);
  border-bottom: none;
  margin: 0;
  font-size: 2rem;
}

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

.site-nav {
  background-color: var(--color-surface);
  border-bottom: 2px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 0 var(--color-primary);
}

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

.site-nav li {
  border-right: 2px solid var(--color-border);
}

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

.site-nav a {
  display: block;
  padding: 1rem 1.5rem;
  color: var(--color-secondary);
  border-bottom: none;
  border-bottom: 3px solid transparent;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.9rem;
}

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

.site-nav a:focus-visible {
  outline: none;
  background-color: var(--color-primary);
  color: var(--color-bg);
}

.breadcrumbs {
  padding: 1rem 0;
  font-size: 0.9rem;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 2rem;
  background: repeating-linear-gradient(
    90deg,
    transparent,
    transparent 8px,
    var(--color-surface) 8px,
    var(--color-surface) 16px
  );
}

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

.breadcrumbs li::after {
  content: '▶';
  margin-left: 0.5rem;
  color: var(--color-text-muted);
  font-size: 0.7rem;
}

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

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

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

.site-main {
  flex: 1;
  padding: 3rem 0;
  background-color: var(--color-bg);
}

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

.site-footer::before {
  content: '';
  position: absolute;
  top: -8px;
  left: 0;
  right: 0;
  height: 4px;
  background: repeating-linear-gradient(
    90deg,
    var(--color-accent),
    var(--color-accent) 20px,
    transparent 20px,
    transparent 40px
  );
}

.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);
  background-color: var(--color-primary);
}

.card {
  background-color: var(--color-surface);
  border: 3px solid var(--color-border);
  padding: 2rem;
  margin-bottom: 2rem;
  position: relative;
  box-shadow: 6px 6px 0 var(--color-primary);
  transition: box-shadow var(--transition-speed) ease,
              transform var(--transition-speed) ease;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: repeating-linear-gradient(
    90deg,
    var(--color-primary),
    var(--color-primary) 5px,
    var(--color-accent) 5px,
    var(--color-accent) 10px
  );
}

.card:hover {
  box-shadow: 10px 10px 0 var(--color-primary);
  transform: translate(-2px, -2px);
}

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

table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  background-color: var(--color-surface);
  border: 3px solid var(--color-border);
}

table caption {
  padding: 1rem;
  font-weight: bold;
  background-color: var(--color-secondary);
  color: var(--color-bg);
  border: 3px solid var(--color-border);
  border-bottom: none;
  text-align: left;
  font-size: 1.1rem;
}

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

table th {
  padding: 1rem;
  text-align: left;
  font-weight: bold;
  border: 2px solid var(--color-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.9rem;
}

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

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

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

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

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

details {
  border: 3px solid var(--color-border);
  background-color: var(--color-surface);
  margin-bottom: 1rem;
  position: relative;
}

details::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 6px;
  background-color: var(--color-primary);
  transition: background-color var(--transition-speed) ease;
}

details[open]::before {
  background-color: var(--color-accent);
}

summary {
  padding: 1.25rem;
  padding-left: 2rem;
  cursor: pointer;
  font-weight: bold;
  color: var(--color-secondary);
  background-color: var(--color-surface);
  border-bottom: 2px solid var(--color-border);
  list-style: none;
  position: relative;
  transition: background-color var(--transition-speed) ease,
              color var(--transition-speed) ease;
}

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

summary::before {
  content: '▶';
  position: absolute;
  left: 0.75rem;
  transition: transform var(--transition-speed) ease;
  color: var(--color-primary);
  font-size: 0.8rem;
}

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

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

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

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

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

details > *:not(summary) {
  padding: 1.5rem;
  padding-left: 2rem;
}

@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 {
    flex-wrap: nowrap;
  }

  .container {
    padding: 0 2rem;
  }

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

@media (min-width: 1024px) {
  body {
    font-size: 1.0625rem;
  }

  h1 {
    font-size: 3.5rem;
  }

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

  .card {
    padding: 2.5rem;
  }

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

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

  html {
    scroll-behavior: auto;
  }

  .card:hover {
    transform: none;
  }

  summary::before {
    transition: none;
  }
}

@media print {
  body {
    background: white;
    background-image: none;
    color: black;
  }

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

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

  .site-header h1 {
    color: black;
  }

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

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

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

  .card {
    border: 2px solid black;
    box-shadow: none;
    page-break-inside: avoid;
  }

  table {
    border: 2px solid black;
  }

  table th {
    background: #eee;
    color: black;
    border: 1px solid black;
  }

  table td {
    border: 1px solid black;
  }

  details {
    border: 2px solid black;
  }

  details[open] summary ~ * {
    display: block;
  }
}