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

:root {
  --color-primary: #a21caf;
  --color-secondary: #701a75;
  --color-accent: #f0abfc;
  --color-bg: #fefcff;
  --color-surface: #fdf4ff;
  --color-text: #4a044e;
  --color-text-muted: #8b5f90;
  --color-border: #e0c8e4;
  --font-main: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --max-width: 1100px;
  --radius: 24px;
  --radius-pill: 50px;
  --radius-circle: 50%;
}

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

body {
  font-family: var(--font-main);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  font-size: 1.0625rem;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 0.75em;
  color: var(--color-secondary);
  letter-spacing: -0.02em;
}

h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
  font-weight: 800;
  line-height: 1.1;
}

h2 {
  font-size: 2.25rem;
  margin-top: 2rem;
}

h3 {
  font-size: 1.75rem;
  margin-top: 1.75rem;
}

h4 {
  font-size: 1.375rem;
  margin-top: 1.5rem;
}

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

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

p {
  margin-bottom: 1.25rem;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
  border-bottom: 2px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

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

a:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: 4px;
}

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

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

blockquote {
  margin: 2rem 0;
  padding: 1.5rem 2rem;
  background: var(--color-surface);
  border-left: 6px solid var(--color-primary);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 1.125rem;
  font-style: italic;
  color: var(--color-text-muted);
  box-shadow: 0 2px 8px rgba(162, 28, 175, 0.08);
}

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

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

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

.site-header {
  background: var(--color-surface);
  border-bottom: 2px solid var(--color-border);
  padding: 1.5rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 4px 12px rgba(74, 4, 78, 0.06);
}

.site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.site-header h1 {
  font-size: 1.75rem;
  margin: 0;
  color: var(--color-primary);
}

.site-header a {
  border: none;
}

.site-nav {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  align-items: center;
}

.site-nav a {
  padding: 0.625rem 1.25rem;
  background: var(--color-bg);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-pill);
  color: var(--color-text);
  font-weight: 600;
  font-size: 0.9375rem;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.site-nav a:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
  box-shadow: 0 4px 12px rgba(162, 28, 175, 0.25);
}

.site-nav a:focus-visible {
  outline-color: var(--color-primary);
  outline-offset: 2px;
}

.breadcrumbs {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.breadcrumbs a {
  color: var(--color-text-muted);
  border: none;
}

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

.breadcrumbs::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: var(--radius-circle);
  margin-right: 0.25rem;
}

.site-main {
  min-height: 70vh;
  padding: 3rem 0;
}

.site-footer {
  background: var(--color-secondary);
  color: var(--color-accent);
  padding: 3rem 0 2rem;
  margin-top: 4rem;
  border-top-left-radius: var(--radius);
  border-top-right-radius: var(--radius);
}

.site-footer .container {
  display: grid;
  gap: 2rem;
}

.site-footer a {
  color: white;
  border-bottom-color: transparent;
}

.site-footer a:hover {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.site-footer p {
  margin-bottom: 0.75rem;
}

.card {
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius);
  padding: 2rem;
  margin-bottom: 2rem;
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 200px;
  height: 200px;
  background: var(--color-accent);
  opacity: 0.1;
  border-radius: var(--radius-circle);
  pointer-events: none;
}

.card:hover {
  box-shadow: 0 8px 24px rgba(162, 28, 175, 0.15);
  border-color: var(--color-primary);
}

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

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

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

th {
  padding: 1rem;
  text-align: left;
  font-weight: 700;
  letter-spacing: 0.02em;
}

td {
  padding: 1rem;
  border-top: 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: rgba(162, 28, 175, 0.08);
}

details {
  margin: 1.5rem 0;
  border: 2px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  overflow: hidden;
  transition: border-color 0.2s ease;
}

details:hover {
  border-color: var(--color-primary);
}

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

summary {
  padding: 1.25rem 1.5rem;
  font-weight: 700;
  color: var(--color-secondary);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background-color 0.2s ease, color 0.2s ease;
  border-radius: var(--radius);
}

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

summary::after {
  content: '';
  width: 32px;
  height: 32px;
  background: var(--color-accent);
  border-radius: var(--radius-circle);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.2s ease, transform 0.2s ease;
  flex-shrink: 0;
}

details[open] summary::after {
  transform: rotate(180deg);
  background: var(--color-primary);
}

summary:hover {
  background: rgba(162, 28, 175, 0.05);
  color: var(--color-primary);
}

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

details > *:not(summary) {
  padding: 0 1.5rem 1.5rem;
  animation: slideDown 0.2s ease;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (min-width: 768px) {
  h1 {
    font-size: 4rem;
  }

  h2 {
    font-size: 2.75rem;
  }

  h3 {
    font-size: 2rem;
  }

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

  .site-nav {
    gap: 0.75rem;
  }

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

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

  .card {
    padding: 2.5rem;
  }

  .container {
    padding: 0 2rem;
  }
}

@media (min-width: 1024px) {
  h1 {
    font-size: 4.5rem;
  }

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

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

  .card::after {
    content: '';
    position: absolute;
    bottom: -20%;
    left: -5%;
    width: 150px;
    height: 150px;
    background: var(--color-primary);
    opacity: 0.05;
    border-radius: var(--radius-circle);
    pointer-events: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  
  details > *:not(summary) {
    animation: none;
  }
  
  summary::after {
    transition: none;
  }
}

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

  .site-main {
    padding: 0;
    min-height: auto;
  }

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

  a {
    color: var(--color-text);
    border-bottom: none;
  }

  a[href^="http"]::after {
    content: " (" attr(href) ")";
    font-size: 0.875rem;
  }

  .card {
    border: 1px solid var(--color-border);
    page-break-inside: avoid;
  }

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

  details summary::after {
    display: none;
  }
}