*, *::before, *::after {
  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: 'Trebuchet MS', 'Lucida Sans', 'Lucida Grande', sans-serif;
  --max-width: 1100px;
  --radius: 0;
  --spacing-unit: 1.5rem;
  --transition-speed: 0.2s;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-main);
  font-size: 1rem;
  line-height: 1.6;
  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;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

h1 {
  font-size: 2.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  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: 120px;
  height: 4px;
  background-color: var(--color-secondary);
  clip-path: polygon(0 0, 100% 0, 85% 100%, 0% 100%);
}

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

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

h4 {
  font-size: 1.25rem;
  margin-top: 1.25rem;
}

h5 {
  font-size: 1.125rem;
  margin-top: 1rem;
}

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

p {
  margin-bottom: 1rem;
  max-width: 75ch;
}

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-primary);
}

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

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

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

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;
  color: var(--color-text-muted);
  position: relative;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
}

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%);
}

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

.site-header {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: relative;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 30px), 0 100%);
  padding-bottom: 40px;
}

.site-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 30px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  clip-path: polygon(0 100%, 100% 0, 100% 100%);
}

.site-header .container {
  padding-top: 2rem;
  padding-bottom: 1rem;
}

.site-nav {
  margin-top: 1.5rem;
}

.site-nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.site-nav li {
  display: inline-block;
}

.site-nav a {
  display: block;
  padding: 0.75rem 1.5rem;
  background-color: var(--color-bg);
  color: var(--color-text);
  border: 2px solid var(--color-border);
  border-bottom: 4px solid var(--color-border);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.875rem;
  font-weight: 700;
  clip-path: polygon(8px 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
  transition: background-color var(--transition-speed) ease, border-color var(--transition-speed) ease, transform var(--transition-speed) ease;
}

.site-nav a:hover {
  background-color: var(--color-primary);
  color: var(--color-bg);
  border-color: var(--color-secondary);
  transform: translateY(-2px);
}

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

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

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  margin-bottom: 2rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  padding: 0.75rem 1rem;
  background-color: var(--color-surface);
  clip-path: polygon(0 0, calc(100% - 15px) 0, 100% 50%, calc(100% - 15px) 100%, 0 100%);
}

.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 span {
  color: var(--color-border);
}

.card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 2rem;
  margin-bottom: 2rem;
  position: relative;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 25px), calc(100% - 25px) 100%, 0 100%);
  transition: box-shadow var(--transition-speed) ease, transform var(--transition-speed) ease;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 8px;
  height: 100%;
  background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  clip-path: polygon(0 0, 100% 0, 100% 90%, 0 100%);
}

.card:hover {
  box-shadow: 12px 12px 0 var(--color-accent);
  transform: translate(-4px, -4px);
}

.card h2 {
  margin-top: 0;
}

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

table thead {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: var(--color-bg);
}

table th {
  padding: 1rem;
  text-align: left;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.875rem;
  border-bottom: 3px solid var(--color-secondary);
}

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

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);
}

details {
  margin: 1.5rem 0;
  border: 2px solid var(--color-border);
  background-color: var(--color-surface);
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 0 100%);
  transition: background-color var(--transition-speed) ease;
}

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

summary {
  padding: 1rem 1.5rem;
  cursor: pointer;
  font-weight: 700;
  color: var(--color-secondary);
  list-style: none;
  position: relative;
  user-select: none;
  transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease;
  background: linear-gradient(90deg, var(--color-surface) 0%, var(--color-bg) 100%);
}

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

summary::before {
  content: '▶';
  position: absolute;
  left: 1.5rem;
  transition: transform var(--transition-speed) ease;
  color: var(--color-primary);
}

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

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

details[open] summary {
  border-bottom: 2px solid var(--color-border);
  margin-bottom: 0.5rem;
}

summary {
  padding-left: 3rem;
}

details p {
  padding: 0 1.5rem 1rem;
}

.site-footer {
  background-color: var(--color-secondary);
  color: var(--color-accent);
  padding: 3rem 0 2rem;
  margin-top: 4rem;
  position: relative;
  clip-path: polygon(0 40px, 100% 0, 100% 100%, 0 100%);
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 40px;
  background: linear-gradient(45deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  clip-path: polygon(0 100%, 100% 0, 100% 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-accent);
}

.site-footer p {
  margin-bottom: 0.5rem;
}

ul, ol {
  margin: 1rem 0 1rem 2rem;
}

li {
  margin-bottom: 0.5rem;
}

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

ol li::marker {
  color: var(--color-secondary);
  font-weight: 700;
}

hr {
  border: none;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-accent) 50%, var(--color-bg) 100%);
  margin: 2rem 0;
  clip-path: polygon(0 0, 98% 0, 100% 100%, 0 100%);
}

code {
  font-family: 'Courier New', monospace;
  background-color: var(--color-surface);
  padding: 0.2rem 0.4rem;
  border: 1px solid var(--color-border);
  font-size: 0.9em;
  color: var(--color-secondary);
}

pre {
  background-color: var(--color-surface);
  border: 2px solid var(--color-border);
  border-left: 6px solid var(--color-primary);
  padding: 1.5rem;
  overflow-x: auto;
  margin: 1.5rem 0;
}

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

input, textarea, select, button {
  font-family: var(--font-main);
  font-size: 1rem;
}

button, .button {
  display: inline-block;
  padding: 0.75rem 2rem;
  background-color: var(--color-primary);
  color: var(--color-bg);
  border: 3px solid var(--color-secondary);
  cursor: pointer;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  clip-path: polygon(12px 0, 100% 0, calc(100% - 12px) 100%, 0 100%);
  transition: background-color var(--transition-speed) ease, transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

button:hover, .button:hover {
  background-color: var(--color-secondary);
  transform: translateY(-3px);
  box-shadow: 6px 6px 0 var(--color-accent);
  border-bottom-color: var(--color-secondary);
}

button:focus-visible, .button:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 4px;
}

@media (min-width: 768px) {
  :root {
    --spacing-unit: 2rem;
  }

  h1 {
    font-size: 3.5rem;
  }

  h2 {
    font-size: 2.5rem;
  }

  h3 {
    font-size: 1.75rem;
  }

  .site-header .container {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 2rem;
  }

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

  .site-nav ul {
    gap: 1rem;
  }

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

  .card {
    padding: 2.5rem;
  }

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

@media (min-width: 1024px) {
  h1 {
    font-size: 4rem;
  }

  h2 {
    font-size: 3rem;
  }

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

  .container {
    padding: 0 2rem;
  }

  .card {
    padding: 3rem;
  }

  blockquote {
    margin: 3rem 0;
    padding: 2rem 2rem 2rem 3rem;
  }
}

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

  summary::before {
    transition: none;
  }

  .card:hover {
    transform: none;
  }

  button:hover, .button:hover {
    transform: none;
  }

  .site-nav a:hover {
    transform: none;
  }
}

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

  .site-header {
    clip-path: none;
    padding-bottom: 1rem;
  }

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

  .site-footer {
    clip-path: none;
    padding-top: 2rem;
  }

  .site-footer::before {
    display: none;
  }

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

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

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

  a[href^="http"]::after {
    content: " (" attr(href) ")";
    font-size: 0.8em;
    color: var(--color-text-muted);
  }
}