:root {
  --color-primary: #2F2A7A;
  --color-secondary: #0E7C86;
  --color-accent: #D64B7C;
  --color-background: #FBFAF7;
  --color-surface: #FFFFFF;
  --color-text: #14131A;
  --color-text-muted: #5B5A66;
  --color-border: #D9D6E2;
  --radius: 2px;
  --shadow: 0 1px 3px rgba(20, 19, 26, 0.08);
  --space: 1rem;
  --maxw: 65ch;
}

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

html {
  font-size: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
}

input, button, textarea, select {
  font: inherit;
}

p, h1, h2, h3, h4, h5, h6 {
  overflow-wrap: break-word;
}

body {
  display: grid;
  grid-template-rows: auto 1fr auto;
  min-height: 100vh;
}

header {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: calc(var(--space) * 1.5) var(--space);
}

header .container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space);
}

.site-name {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-primary);
  text-decoration: none;
}

nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: calc(var(--space) * 1.5);
  align-items: center;
}

nav a {
  color: var(--color-text);
  text-decoration: none;
  font-weight: 500;
  letter-spacing: 0.01em;
  transition: color 0.2s ease;
}

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

nav a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
  border-radius: var(--radius);
}

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: calc(var(--space) * 3) var(--space);
  width: 100%;
}

.breadcrumb {
  margin-bottom: calc(var(--space) * 2);
}

.breadcrumb ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.breadcrumb li:not(:last-child)::after {
  content: "/";
  margin-left: 0.5rem;
  color: var(--color-border);
}

.breadcrumb a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.1;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: calc(var(--space) * 2);
  color: var(--color-primary);
}

h2 {
  font-size: clamp(1.5rem, 4vw, 2rem);
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-top: calc(var(--space) * 3);
  margin-bottom: var(--space);
  color: var(--color-text);
}

h3 {
  font-size: clamp(1.25rem, 3vw, 1.5rem);
  line-height: 1.3;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-top: calc(var(--space) * 2);
  margin-bottom: calc(var(--space) * 0.75);
  color: var(--color-text);
}

h4 {
  font-size: clamp(1.125rem, 2.5vw, 1.25rem);
  line-height: 1.4;
  font-weight: 600;
  margin-top: calc(var(--space) * 1.5);
  margin-bottom: calc(var(--space) * 0.5);
  color: var(--color-text);
}

p, ul, ol {
  max-width: var(--maxw);
  margin-bottom: var(--space);
}

ul, ol {
  padding-left: calc(var(--space) * 1.5);
}

li {
  margin-bottom: calc(var(--space) * 0.5);
}

a {
  color: var(--color-secondary);
  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-primary);
  text-decoration-color: var(--color-accent);
}

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

table {
  width: 100%;
  border-collapse: collapse;
  margin: calc(var(--space) * 2) 0;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  font-size: 0.9375rem;
}

caption {
  font-weight: 600;
  text-align: left;
  padding: var(--space);
  background-color: var(--color-primary);
  color: var(--color-surface);
  letter-spacing: 0.01em;
  position: sticky;
  top: 0;
  z-index: 10;
}

thead {
  background-color: var(--color-background);
  font-weight: 600;
  letter-spacing: 0.02em;
}

th, td {
  text-align: left;
  padding: calc(var(--space) * 0.75) var(--space);
  border: 1px solid var(--color-border);
}

th {
  font-weight: 600;
  color: var(--color-text);
}

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

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

tbody tr:hover {
  background-color: rgba(47, 42, 122, 0.05);
}

details {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: var(--space);
  padding: var(--space);
  transition: border-color 0.2s ease;
}

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

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

summary {
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: calc(var(--space) * 0.5);
  margin: calc(var(--space) * -0.5);
  border-radius: var(--radius);
  transition: background-color 0.2s ease, color 0.2s ease;
}

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

summary::after {
  content: "+";
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  transition: transform 0.2s ease;
}

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

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

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

details p {
  margin-top: var(--space);
  padding-left: calc(var(--space) * 0.5);
}

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

blockquote p {
  margin-bottom: calc(var(--space) * 0.5);
}

footer {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: calc(var(--space) * 2) var(--space);
  margin-top: calc(var(--space) * 4);
}

footer .container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space);
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

footer p {
  margin: 0;
  max-width: none;
}

footer a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

@media (min-width: 768px) {
  :root {
    --space: 1.25rem;
  }

  header .container {
    flex-wrap: nowrap;
  }

  main {
    padding: calc(var(--space) * 4) var(--space);
  }

  table {
    font-size: 1rem;
  }

  th, td {
    padding: var(--space) calc(var(--space) * 1.25);
  }
}

@media (min-width: 1024px) {
  :root {
    --space: 1.5rem;
  }

  main {
    padding: calc(var(--space) * 5) var(--space);
  }
}

@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;
  }

  html {
    scroll-behavior: auto;
  }
}

@media print {
  body {
    background-color: white;
    color: black;
  }

  header, footer, nav, .breadcrumb {
    display: none;
  }

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

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

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

  details {
    border: 1px solid black;
  }

  summary::after {
    display: none;
  }

  details[open] summary {
    margin-bottom: 0.5rem;
  }

  table {
    border: 1px solid black;
  }

  th, td {
    border: 1px solid black;
  }

  tbody tr:nth-child(even) {
    background-color: #f5f5f5;
  }
}