:root {
  --color-primary: #7B5AAE;
  --color-secondary: #3E2A5E;
  --color-accent: #E7B6D8;
  --color-background: #FBFAFF;
  --color-surface: #F2EEFF;
  --color-text: #1E1630;
  --color-text-muted: #5A4E73;
  --color-border: #D8D0F0;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(62, 42, 94, 0.12);
  --space: clamp(14px, 2vw, 20px);
}

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-background);
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  grid-template-columns: 100%;
}

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

h1 {
  font-size: clamp(1.875rem, 1.5rem + 2vw, 3rem);
  margin-bottom: 1em;
}

h2 {
  font-size: clamp(1.5rem, 1.25rem + 1.5vw, 2.25rem);
  margin-top: 1.5em;
}

h3 {
  font-size: clamp(1.25rem, 1.125rem + 0.75vw, 1.75rem);
  margin-top: 1.25em;
}

h4 {
  font-size: clamp(1.125rem, 1rem + 0.5vw, 1.375rem);
}

p, ul, ol, dl {
  margin-bottom: 1.25em;
  max-width: 70ch;
}

ul, ol {
  padding-left: 1.5em;
}

li {
  margin-bottom: 0.5em;
}

a {
  color: var(--color-primary);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
  transition: color 0.2s ease, text-decoration-color 0.2s ease;
}

a:hover {
  color: var(--color-secondary);
  text-decoration-thickness: 2px;
}

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

header {
  background-color: var(--color-surface);
  border-bottom: 2px solid var(--color-border);
  padding: var(--space) calc(var(--space) * 1.5);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow);
}

header .header-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.site-name {
  font-size: clamp(1.25rem, 1.125rem + 0.5vw, 1.5rem);
  font-weight: 700;
  color: var(--color-secondary);
  text-decoration: none;
}

.site-name:hover {
  color: var(--color-primary);
}

nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: clamp(1rem, 2vw, 2rem);
}

nav a {
  text-decoration: none;
  font-weight: 500;
  padding: 0.5em 0.75em;
  border-radius: calc(var(--radius) / 2);
  transition: background-color 0.2s ease, color 0.2s ease;
}

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

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

main {
  max-width: 1400px;
  margin: 0 auto;
  padding: calc(var(--space) * 2) var(--space);
  width: 100%;
}

@media (min-width: 768px) {
  main {
    display: grid;
    grid-template-columns: 1fr;
    gap: calc(var(--space) * 2);
  }
}

@media (min-width: 1024px) {
  main {
    grid-template-columns: 1fr 300px;
  }
  
  main.no-aside {
    grid-template-columns: 1fr;
  }
}

article {
  min-width: 0;
}

section {
  margin-bottom: calc(var(--space) * 3);
}

aside {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: calc(var(--space) * 1.5);
  box-shadow: var(--shadow);
  align-self: start;
  position: sticky;
  top: calc(var(--space) * 5);
}

@media (max-width: 1023px) {
  aside {
    position: static;
    margin-bottom: calc(var(--space) * 2);
  }
}

aside h2, aside h3 {
  font-size: clamp(1.125rem, 1rem + 0.5vw, 1.375rem);
  margin-top: 0;
}

aside ul {
  max-width: none;
}

blockquote {
  background-color: var(--color-surface);
  border-left: 4px solid var(--color-accent);
  padding: calc(var(--space) * 1.25) calc(var(--space) * 1.5);
  margin: calc(var(--space) * 2) 0;
  border-radius: 0 var(--radius) var(--radius) 0;
  font-style: italic;
  color: var(--color-text-muted);
  max-width: 65ch;
}

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

table {
  width: 100%;
  max-width: 100%;
  border-collapse: collapse;
  margin: calc(var(--space) * 2) 0;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

caption {
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--color-secondary);
  text-align: left;
  padding: calc(var(--space) * 1.25);
  background-color: var(--color-background);
}

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

@media (min-width: 1024px) {
  thead {
    position: sticky;
    top: 0;
    z-index: 10;
  }
}

th {
  padding: calc(var(--space) * 1.25);
  text-align: left;
  font-weight: 600;
  border-bottom: 2px solid var(--color-secondary);
}

td {
  padding: calc(var(--space) * 1.25);
  border-bottom: 1px solid var(--color-border);
}

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

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

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

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

@media (max-width: 767px) {
  table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
}

details {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: calc(var(--space) * 1.25);
  margin-bottom: calc(var(--space) * 1.5);
  box-shadow: var(--shadow);
}

summary {
  font-weight: 600;
  color: var(--color-secondary);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.75em;
  padding: 0.5em 0;
  transition: color 0.2s ease;
}

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

summary::before {
  content: "▶";
  display: inline-block;
  font-size: 0.875em;
  color: var(--color-primary);
  transition: transform 0.3s ease;
}

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

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

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

details[open] {
  padding-bottom: calc(var(--space) * 1.5);
}

details[open] summary {
  margin-bottom: calc(var(--space) * 1.25);
}

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

.breadcrumbs {
  list-style: none;
  padding: 0;
  margin: 0 0 calc(var(--space) * 2) 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5em;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  max-width: none;
}

.breadcrumbs li {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.5em;
}

.breadcrumbs li:not(:last-child)::after {
  content: "›";
  color: var(--color-border);
  font-weight: 700;
}

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

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

footer {
  background-color: var(--color-secondary);
  color: var(--color-background);
  padding: calc(var(--space) * 2) var(--space);
  text-align: center;
  border-top: 2px solid var(--color-primary);
  margin-top: calc(var(--space) * 3);
}

footer p {
  margin: 0;
  max-width: none;
  font-size: 0.9375rem;
}

footer a {
  color: var(--color-accent);
}

footer a:hover {
  color: var(--color-background);
}

.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: calc(var(--space) * 1.5);
  margin: calc(var(--space) * 2) 0;
}

@media (min-width: 768px) {
  .card-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  }
}

.card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: calc(var(--space) * 1.5);
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 15px 40px rgba(62, 42, 94, 0.18);
}

button, .button {
  display: inline-block;
  background-color: var(--color-primary);
  color: var(--color-background);
  padding: 0.75em 1.5em;
  border: none;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.2s ease;
  box-shadow: var(--shadow);
}

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

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

button:active, .button:active {
  transform: translateY(0);
}

@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;
  }
  
  details[open] summary::before {
    transform: none;
  }
  
  .card:hover {
    transform: none;
  }
  
  button:hover, .button:hover {
    transform: none;
  }
}

@media print {
  body {
    background-color: white;
    color: black;
    font-size: 12pt;
    line-height: 1.5;
  }
  
  header, footer, nav, aside, .no-print {
    display: none;
  }
  
  main {
    max-width: 100%;
    padding: 0;
    display: block;
  }
  
  a {
    color: black;
    text-decoration: underline;
  }
  
  a[href^="http"]::after {
    content: " (" attr(href) ")";
    font-size: 0.875em;
  }
  
  h1, h2, h3, h4, h5, h6 {
    page-break-after: avoid;
    color: black;
  }
  
  table, blockquote, details {
    page-break-inside: avoid;
  }
  
  thead {
    display: table-header-group;
  }
  
  tr, img {
    page-break-inside: avoid;
  }
}

*:focus {
  outline: none;
}

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

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

img {
  max-width: 100%;
  height: auto;
  display: block;
}

code, pre {
  font-family: "Courier New", Courier, monospace;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: calc(var(--radius) / 2);
}

code {
  padding: 0.125em 0.375em;
  font-size: 0.9375em;
}

pre {
  padding: calc(var(--space) * 1.25);
  overflow-x: auto;
  margin: calc(var(--space) * 1.5) 0;
}

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

hr {
  border: none;
  border-top: 2px solid var(--color-border);
  margin: calc(var(--space) * 3) 0;
}