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

:root {
  --color-primary: #a8884a;
  --color-secondary: #6e5a2e;
  --color-accent: #f0e0b8;
  --color-bg: #fefdf8;
  --color-surface: #faf6ec;
  --color-text: #3a2f18;
  --color-text-muted: #8a7d62;
  --color-border: #ddd4be;
  --font-main: 'Courier New', 'Lucida Console', Monaco, monospace;
  --max-width: 1100px;
  --radius: 0;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 4rem;
}

body {
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: bold;
  line-height: 1.3;
  margin-bottom: var(--spacing-sm);
  letter-spacing: -0.02em;
}

h1 {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
  position: relative;
  padding-bottom: var(--spacing-sm);
}

h1::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 80px;
  height: 4px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  clip-path: polygon(0 0, 90% 0, 100% 100%, 0% 100%);
}

h2 {
  font-size: 2rem;
  margin-top: var(--spacing-lg);
  position: relative;
  padding-left: var(--spacing-sm);
  border-left: 4px solid var(--color-primary);
  clip-path: polygon(0 0, 100% 0, 100% 85%, 98% 100%, 0 100%);
  background: linear-gradient(90deg, var(--color-accent) 0%, transparent 100%);
  padding: var(--spacing-xs) var(--spacing-sm);
  margin-left: -4px;
}

h3 {
  font-size: 1.5rem;
  margin-top: var(--spacing-md);
  color: var(--color-secondary);
}

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

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

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

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

a {
  color: var(--color-primary);
  text-decoration: none;
  position: relative;
  transition: color 0.2s ease;
  border-bottom: 1px solid transparent;
}

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

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

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

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

blockquote {
  margin: var(--spacing-md) 0;
  padding: var(--spacing-md);
  background: var(--color-surface);
  border-left: 6px solid var(--color-primary);
  position: relative;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 15px), calc(100% - 15px) 100%, 0 100%);
}

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

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

.site-header {
  background: var(--color-surface);
  padding: var(--spacing-md) 0;
  position: relative;
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 calc(100% - 30px));
  margin-bottom: var(--spacing-xl);
}

.site-header::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 200px;
  height: 100%;
  background: linear-gradient(135deg, transparent 50%, var(--color-accent) 50%);
  opacity: 0.3;
  pointer-events: none;
}

.site-header .container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  list-style: none;
  margin-top: var(--spacing-sm);
}

.site-nav li {
  position: relative;
}

.site-nav a {
  display: block;
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--color-bg);
  border: 2px solid var(--color-border);
  transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
  clip-path: polygon(5px 0, 100% 0, 100% calc(100% - 5px), calc(100% - 5px) 100%, 0 100%, 0 5px);
  border-bottom: 1px solid var(--color-border);
}

.site-nav a:hover {
  background: var(--color-accent);
  border-color: var(--color-primary);
  transform: translateY(-2px);
  border-bottom: 1px solid var(--color-primary);
}

.site-main {
  min-height: 60vh;
  padding: var(--spacing-md) 0;
}

.site-footer {
  background: var(--color-secondary);
  color: var(--color-accent);
  padding: var(--spacing-lg) 0;
  margin-top: var(--spacing-xl);
  position: relative;
  clip-path: polygon(0 30px, 30px 0, 100% 0, 100% 100%, 0 100%);
}

.site-footer::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-accent) 50%, var(--color-primary) 100%);
}

.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 {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
  width: 100%;
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-md);
  padding: var(--spacing-sm);
  background: var(--color-surface);
  list-style: none;
  font-size: 0.9rem;
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 0 100%);
}

.breadcrumbs li {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--color-text-muted);
}

.breadcrumbs li:not(:last-child)::after {
  content: '/';
  margin-left: var(--spacing-xs);
  color: var(--color-border);
}

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

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

.card {
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  position: relative;
  clip-path: polygon(15px 0, 100% 0, 100% calc(100% - 15px), calc(100% - 15px) 100%, 0 100%, 0 15px);
  transition: box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 15px;
  height: 15px;
  background: var(--color-primary);
  clip-path: polygon(0 0, 100% 0, 0 100%);
}

.card::after {
  content: '';
  position: absolute;
  bottom: 0;
  right: 0;
  width: 15px;
  height: 15px;
  background: var(--color-secondary);
  clip-path: polygon(100% 0, 100% 100%, 0 100%);
}

.card:hover {
  box-shadow: 0 8px 20px rgba(58, 47, 24, 0.15);
  transform: translateY(-4px);
  border-color: var(--color-primary);
}

table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin: var(--spacing-md) 0;
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
  overflow: hidden;
}

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

th {
  padding: var(--spacing-sm);
  text-align: left;
  font-weight: bold;
  border-bottom: 3px solid var(--color-primary);
  position: relative;
}

th::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-accent) 100%);
}

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

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

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

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

details {
  margin: var(--spacing-md) 0;
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  clip-path: polygon(12px 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%, 0 12px);
  transition: border-color 0.2s ease;
}

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

details[open] summary {
  border-bottom: 2px solid var(--color-border);
  background: var(--color-accent);
}

summary {
  padding: var(--spacing-sm) var(--spacing-md);
  cursor: pointer;
  font-weight: bold;
  list-style: none;
  user-select: none;
  position: relative;
  transition: background-color 0.2s ease;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

summary::after {
  content: '▼';
  font-size: 0.8em;
  color: var(--color-primary);
  transform: rotate(-90deg);
  transition: transform 0.2s ease;
  display: inline-block;
}

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

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

details > *:not(summary) {
  padding: var(--spacing-md);
  animation: slideDown 0.2s ease;
}

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

button, .button {
  font-family: var(--font-main);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-primary);
  color: var(--color-bg);
  border: 2px solid var(--color-primary);
  cursor: pointer;
  font-size: 1rem;
  transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
  clip-path: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
  display: inline-block;
}

button:hover, .button:hover {
  background: var(--color-secondary);
  border-color: var(--color-secondary);
  transform: translateY(-2px);
}

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

input, textarea, select {
  font-family: var(--font-main);
  padding: var(--spacing-sm);
  border: 2px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 1rem;
  width: 100%;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(168, 136, 74, 0.1);
}

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

  h1 {
    font-size: 3rem;
  }

  h2 {
    font-size: 2.25rem;
  }

  h3 {
    font-size: 1.75rem;
  }

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

  .site-header .container {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }

  .site-nav {
    margin-top: 0;
  }

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

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

  table {
    font-size: 1rem;
  }
}

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

  h2 {
    font-size: 2.5rem;
  }

  .site-header {
    padding: var(--spacing-lg) 0;
  }

  .site-nav {
    gap: var(--spacing-md);
  }

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

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

  blockquote {
    padding: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
  }
}

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

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

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

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

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

  a {
    color: var(--color-text);
    text-decoration: underline;
  }

  .card {
    page-break-inside: avoid;
    box-shadow: none;
    border: 1px solid var(--color-border);
  }

  table {
    page-break-inside: avoid;
  }
}