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

*::before,
*::after {
  box-sizing: border-box;
}

:root {
  --color-primary: #7c3aed;
  --color-secondary: #5b21b6;
  --color-accent: #ddd6fe;
  --color-bg: #fefeff;
  --color-surface: #f5f3ff;
  --color-text: #2e1065;
  --color-text-muted: #7c6f9b;
  --color-border: #d8d0e8;
  --font-main: 'Trebuchet MS', 'Lucida Sans', 'Lucida Grande', sans-serif;
  --max-width: 1100px;
  --radius: 0;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --border-width: 4px;
  --shadow-inner: inset 2px 2px 4px rgba(46, 16, 101, 0.08);
  --shadow-elevation-sm: 4px 4px 0 rgba(91, 33, 182, 0.2);
  --shadow-elevation-md: 6px 6px 0 rgba(91, 33, 182, 0.25);
  --shadow-elevation-lg: 8px 8px 0 rgba(91, 33, 182, 0.3);
}

body {
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: linear-gradient(135deg, var(--color-bg) 0%, #f8f7fe 100%);
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr auto;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
  color: var(--color-text);
}

h1 {
  font-size: 2.5rem;
  border: var(--border-width) solid var(--color-text);
  padding: var(--spacing-md);
  background: linear-gradient(135deg, var(--color-accent) 0%, #ede9fe 100%);
  box-shadow: var(--shadow-elevation-lg);
  margin-bottom: var(--spacing-lg);
}

h2 {
  font-size: 2rem;
  border-left: var(--border-width) solid var(--color-primary);
  padding-left: var(--spacing-md);
  margin-top: var(--spacing-xl);
}

h3 {
  font-size: 1.5rem;
  color: var(--color-secondary);
  border-bottom: var(--border-width) solid var(--color-border);
  padding-bottom: var(--spacing-xs);
}

h4 {
  font-size: 1.25rem;
  color: var(--color-primary);
}

h5 {
  font-size: 1.1rem;
}

h6 {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
  border-bottom: 2px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
  position: relative;
}

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

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

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

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

blockquote {
  border-left: 6px solid var(--color-primary);
  background: linear-gradient(90deg, var(--color-surface) 0%, var(--color-bg) 100%);
  padding: var(--spacing-md) var(--spacing-lg);
  margin: var(--spacing-lg) 0;
  box-shadow: var(--shadow-inner);
  border-top: var(--border-width) solid var(--color-border);
  border-bottom: var(--border-width) solid var(--color-border);
}

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

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

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

.site-header {
  background: linear-gradient(180deg, var(--color-surface) 0%, var(--color-bg) 100%);
  border-bottom: var(--border-width) solid var(--color-text);
  padding: var(--spacing-lg) 0;
  box-shadow: 0 4px 0 rgba(91, 33, 182, 0.15);
  position: relative;
}

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

.site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.site-header h1 {
  margin: 0;
  font-size: 1.75rem;
  padding: var(--spacing-sm) var(--spacing-md);
  border: var(--border-width) solid var(--color-text);
  background: white;
  box-shadow: var(--shadow-elevation-sm);
}

.site-nav {
  display: flex;
  gap: var(--spacing-xs);
  flex-wrap: wrap;
}

.site-nav a {
  padding: var(--spacing-sm) var(--spacing-md);
  border: var(--border-width) solid var(--color-text);
  background: white;
  color: var(--color-text);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.875rem;
  letter-spacing: 0.05em;
  transition: background-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  box-shadow: var(--shadow-elevation-sm);
}

.site-nav a:hover {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-secondary);
  box-shadow: var(--shadow-elevation-md);
  transform: translate(-2px, -2px);
}

.site-nav a:focus-visible {
  outline: none;
  background: var(--color-secondary);
  color: white;
  box-shadow: var(--shadow-elevation-lg);
}

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

.breadcrumbs {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: var(--spacing-lg);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  box-shadow: var(--shadow-inner);
}

.breadcrumbs a {
  font-size: 0.875rem;
  border-bottom: none;
  padding: 0.25rem 0.5rem;
}

.breadcrumbs a::after {
  content: '→';
  margin-left: var(--spacing-sm);
  color: var(--color-text-muted);
}

.breadcrumbs a:last-child::after {
  content: '';
}

.card {
  background: white;
  border: var(--border-width) solid var(--color-text);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  box-shadow: var(--shadow-elevation-md);
  transition: box-shadow 0.2s ease, background-color 0.2s ease;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
}

.card:hover {
  box-shadow: var(--shadow-elevation-lg);
  background: linear-gradient(135deg, white 0%, var(--color-surface) 100%);
}

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

table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin: var(--spacing-lg) 0;
  border: var(--border-width) solid var(--color-text);
  box-shadow: var(--shadow-elevation-md);
  background: white;
}

table thead {
  background: linear-gradient(180deg, var(--color-secondary) 0%, var(--color-primary) 100%);
  color: white;
}

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

table td {
  padding: var(--spacing-md);
  border-bottom: 2px solid var(--color-border);
}

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

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

table tbody tr:nth-child(even) {
  background: white;
}

table tbody tr:hover {
  background: linear-gradient(90deg, var(--color-accent) 0%, white 100%);
  box-shadow: var(--shadow-inner);
}

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

details {
  margin: var(--spacing-lg) 0;
  border: var(--border-width) solid var(--color-text);
  background: white;
  box-shadow: var(--shadow-elevation-sm);
  transition: box-shadow 0.2s ease;
}

details[open] {
  box-shadow: var(--shadow-elevation-lg);
}

summary {
  padding: var(--spacing-md);
  background: linear-gradient(135deg, var(--color-accent) 0%, #ede9fe 100%);
  cursor: pointer;
  font-weight: 700;
  color: var(--color-text);
  border-bottom: var(--border-width) solid transparent;
  transition: background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
  list-style: none;
  position: relative;
  padding-left: var(--spacing-xl);
}

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

summary::before {
  content: '▶';
  position: absolute;
  left: var(--spacing-md);
  transition: transform 0.2s ease;
  color: var(--color-primary);
  font-weight: 700;
}

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

summary:hover {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: white;
  box-shadow: var(--shadow-inner);
}

summary:hover::before {
  color: white;
}

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

summary:focus-visible {
  outline: var(--border-width) solid var(--color-primary);
  outline-offset: -4px;
}

details > *:not(summary) {
  padding: var(--spacing-md);
  background: linear-gradient(180deg, var(--color-surface) 0%, white 100%);
}

.site-footer {
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-surface) 100%);
  border-top: var(--border-width) solid var(--color-text);
  padding: var(--spacing-xl) 0;
  margin-top: var(--spacing-xl);
  box-shadow: 0 -4px 0 rgba(91, 33, 182, 0.15);
  position: relative;
}

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

.site-footer .container {
  display: grid;
  gap: var(--spacing-lg);
  text-align: center;
}

.site-footer p {
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-sm);
}

.site-footer a {
  color: var(--color-secondary);
}

ul,
ol {
  margin-left: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

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

code {
  font-family: 'Courier New', monospace;
  background: var(--color-surface);
  padding: 0.125rem 0.375rem;
  border: 2px solid var(--color-border);
  font-size: 0.875em;
  color: var(--color-secondary);
  box-shadow: var(--shadow-inner);
}

pre {
  background: var(--color-surface);
  border: var(--border-width) solid var(--color-text);
  padding: var(--spacing-md);
  overflow-x: auto;
  margin: var(--spacing-lg) 0;
  box-shadow: var(--shadow-elevation-md);
}

pre code {
  border: none;
  padding: 0;
  background: transparent;
  box-shadow: none;
}

@media (min-width: 768px) {
  h1 {
    font-size: 3rem;
  }

  h2 {
    font-size: 2.25rem;
  }

  h3 {
    font-size: 1.75rem;
  }

  .site-header h1 {
    font-size: 2rem;
  }

  .site-header .container {
    flex-wrap: nowrap;
  }

  .site-footer .container {
    grid-template-columns: repeat(2, 1fr);
    text-align: left;
  }

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

@media (min-width: 1024px) {
  body {
    font-size: 18px;
  }

  h1 {
    font-size: 3.5rem;
  }

  h2 {
    font-size: 2.5rem;
  }

  .site-main {
    padding: var(--spacing-xl) 0 calc(var(--spacing-xl) * 2);
  }

  .site-footer .container {
    grid-template-columns: repeat(3, 1fr);
  }

  .card:hover {
    transform: translate(-2px, -2px);
  }

  table tbody tr:hover {
    transform: scale(1.01);
  }
}

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

  details summary::before {
    transition: none;
  }

  .card:hover,
  table tbody tr:hover {
    transform: none;
  }
}

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

  body {
    background: white;
    color: black;
  }

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

  .card,
  table,
  details {
    box-shadow: none;
    border-width: 1px;
  }

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

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

  h1,
  .card {
    page-break-after: avoid;
  }

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