* {
  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: 'Georgia', 'Times New Roman', 'Palatino', serif;
  --max-width: 1100px;
  --radius: 0;
  --transition: 0.2s ease;
}

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

body {
  font-family: var(--font-main);
  font-size: 1.125rem;
  line-height: 1.7;
  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);
}

h1 {
  font-size: 2.5rem;
  letter-spacing: -0.02em;
  border-bottom: 4px solid var(--color-primary);
  padding-bottom: 0.5rem;
  margin-bottom: 1.5rem;
}

h2 {
  font-size: 2rem;
  margin-top: 2.5rem;
  position: relative;
  padding-left: 1rem;
  border-left: 6px solid var(--color-accent);
}

h3 {
  font-size: 1.5rem;
  margin-top: 2rem;
  color: var(--color-primary);
}

h4 {
  font-size: 1.25rem;
  margin-top: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-family: monospace;
}

h5 {
  font-size: 1.125rem;
  margin-top: 1.25rem;
}

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

p {
  margin-bottom: 1.25rem;
}

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

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

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

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

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

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

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

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

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

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

.site-header::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 100%;
  height: 4px;
  background: repeating-linear-gradient(
    90deg,
    var(--color-accent) 0px,
    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-bottom: 0;
  font-family: monospace;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

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

.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-text);
  border-bottom: none;
  border-right: 2px solid var(--color-border);
  font-family: monospace;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.9rem;
  transition: background-color var(--transition), color var(--transition);
}

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

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

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

.site-main {
  flex: 1;
  padding: 3rem 0;
}

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

.site-footer::before {
  content: '';
  position: absolute;
  top: -8px;
  left: 0;
  width: 100%;
  height: 4px;
  background: repeating-linear-gradient(
    90deg,
    var(--color-accent) 0px,
    var(--color-accent) 10px,
    transparent 10px,
    transparent 20px
  );
}

.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);
}

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

.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 2rem;
  padding: 0.75rem 1rem;
  background-color: var(--color-surface);
  border: 2px solid var(--color-border);
  font-family: monospace;
  font-size: 0.875rem;
}

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

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

.breadcrumbs::before {
  content: '▶';
  color: var(--color-primary);
  font-size: 0.75rem;
}

.breadcrumbs span:not(:last-child)::after {
  content: '→';
  margin-left: 0.5rem;
  color: var(--color-text-muted);
}

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

.card::before {
  content: '';
  position: absolute;
  top: -3px;
  left: -3px;
  width: 20px;
  height: 20px;
  background-color: var(--color-primary);
  border: 3px solid var(--color-border);
}

.card::after {
  content: '';
  position: absolute;
  bottom: -3px;
  right: -3px;
  width: 20px;
  height: 20px;
  background-color: var(--color-primary);
  border: 3px solid var(--color-border);
}

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

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

table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  background-color: var(--color-bg);
  border: 3px solid var(--color-border);
  font-size: 1rem;
}

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

th {
  padding: 1rem;
  text-align: left;
  font-weight: 700;
  border: 2px solid var(--color-primary);
  font-family: monospace;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.875rem;
}

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

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

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:hover td {
  color: var(--color-secondary);
}

details {
  margin: 2rem 0;
  border: 3px solid var(--color-border);
  background-color: var(--color-surface);
}

summary {
  padding: 1.25rem 1.5rem;
  cursor: pointer;
  font-weight: 700;
  color: var(--color-primary);
  background-color: var(--color-bg);
  border-bottom: 3px solid var(--color-border);
  font-family: monospace;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  position: relative;
  transition: background-color var(--transition), color var(--transition);
  list-style: none;
}

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

summary::before {
  content: '▶';
  display: inline-block;
  margin-right: 0.75rem;
  transition: transform var(--transition);
  color: var(--color-primary);
}

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

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

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

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

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

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

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

ul:not(.site-nav ul) {
  list-style: none;
  margin: 1.5rem 0;
  padding-left: 0;
}

ul:not(.site-nav ul) li {
  position: relative;
  padding-left: 2rem;
  margin-bottom: 0.75rem;
}

ul:not(.site-nav ul) li::before {
  content: '■';
  position: absolute;
  left: 0.5rem;
  color: var(--color-primary);
  font-size: 0.75rem;
}

ol {
  margin: 1.5rem 0;
  padding-left: 2rem;
}

ol li {
  margin-bottom: 0.75rem;
  padding-left: 0.5rem;
}

ol li::marker {
  color: var(--color-primary);
  font-weight: 700;
  font-family: monospace;
}

code {
  font-family: 'Courier New', 'Courier', monospace;
  background-color: var(--color-surface);
  padding: 0.2rem 0.5rem;
  border: 1px solid var(--color-border);
  color: var(--color-secondary);
  font-size: 0.9em;
}

pre {
  background-color: var(--color-secondary);
  color: var(--color-accent);
  padding: 1.5rem;
  margin: 2rem 0;
  overflow-x: auto;
  border: 3px solid var(--color-primary);
  border-left-width: 8px;
}

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

hr {
  border: none;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-accent) 50%, var(--color-primary) 100%);
  margin: 3rem 0;
  position: relative;
}

hr::after {
  content: '◆';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background-color: var(--color-bg);
  padding: 0 1rem;
  color: var(--color-primary);
  font-size: 1.25rem;
}

button, .button {
  display: inline-block;
  padding: 0.75rem 2rem;
  background-color: var(--color-primary);
  color: var(--color-bg);
  border: 3px solid var(--color-secondary);
  font-family: monospace;
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: background-color var(--transition), color var(--transition), box-shadow var(--transition);
  text-decoration: none;
}

button:hover, .button:hover {
  background-color: var(--color-secondary);
  box-shadow: 4px 4px 0 var(--color-accent);
  transform: translate(-2px, -2px);
}

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

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

input, textarea, select {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 2px solid var(--color-border);
  background-color: var(--color-bg);
  font-family: var(--font-main);
  font-size: 1rem;
  color: var(--color-text);
  transition: border-color var(--transition), box-shadow var(--transition);
}

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

label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 700;
  color: var(--color-secondary);
  font-family: monospace;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.875rem;
}

@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-nav ul {
    justify-content: center;
  }

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

  .card {
    padding: 2.5rem;
  }

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

  .container {
    padding: 0 2rem;
  }
}

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

  h2 {
    font-size: 2.5rem;
  }

  body {
    font-size: 1.25rem;
  }

  .site-nav a {
    padding: 1.25rem 2rem;
  }

  .card {
    padding: 3rem;
  }

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

  table {
    font-size: 1.125rem;
  }
}

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

  .site-header {
    border-bottom: 2px solid #000;
  }

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

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

  a {
    color: #000;
    text-decoration: underline;
  }

  .card {
    border: 1px solid #000;
    page-break-inside: avoid;
  }

  body {
    background: #fff;
    color: #000;
  }
}