:root {
  --color-primary: #2B2A33;
  --color-secondary: #3E5C76;
  --color-accent: #F25F5C;
  --color-background: #FBF7EF;
  --color-surface: #FFFFFF;
  --color-text: #1B1B1F;
  --color-text-muted: #4B4B55;
  --color-border: #1B1B1F;
  --radius: 14px;
  --shadow: 6px 6px 0 var(--color-border);
  --space: clamp(14px, 2.2vw, 22px);
  --font-stack: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

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

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

body {
  font-family: var(--font-stack);
  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: flex;
  flex-direction: column;
}

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

h1 {
  font-size: clamp(2rem, 1.5rem + 2vw, 3rem);
  letter-spacing: -0.03em;
}

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

h3 {
  font-size: clamp(1.25rem, 1.1rem + 0.75vw, 1.75rem);
}

p, li, td, th {
  margin-bottom: 1em;
}

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

a {
  color: var(--color-secondary);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
  font-weight: 600;
  transition: color 0.2s ease, text-decoration-color 0.2s ease;
}

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

a:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 4px;
  border-radius: 2px;
}

header {
  background-color: var(--color-primary);
  color: var(--color-surface);
  border-bottom: 4px solid var(--color-border);
  padding: var(--space);
}

header a {
  color: var(--color-surface);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.02em;
}

header a:hover {
  color: var(--color-accent);
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: calc(var(--space) * 0.75);
  align-items: center;
  margin-top: calc(var(--space) * 0.5);
}

nav a {
  padding: 0.5em 1em;
  background-color: var(--color-surface);
  color: var(--color-primary);
  border: 3px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: 4px 4px 0 var(--color-border);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.95rem;
}

nav a:hover {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 var(--color-border);
  background-color: var(--color-accent);
  color: var(--color-surface);
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5em;
  align-items: center;
  font-size: 0.9rem;
  margin-bottom: calc(var(--space) * 1.5);
  padding: calc(var(--space) * 0.5);
  background-color: var(--color-surface);
  border: 3px solid var(--color-border);
  border-radius: var(--radius);
}

.breadcrumbs a {
  font-weight: 600;
}

.breadcrumbs span {
  color: var(--color-text-muted);
}

main {
  flex: 1;
  padding: calc(var(--space) * 1.5) var(--space);
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
}

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

.card {
  background-color: var(--color-surface);
  border: 4px solid var(--color-border);
  border-radius: var(--radius);
  padding: calc(var(--space) * 1.25);
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translate(2px, 2px);
  box-shadow: 4px 4px 0 var(--color-border);
}

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

blockquote {
  background-color: var(--color-secondary);
  color: var(--color-surface);
  border-left: 6px solid var(--color-accent);
  border-radius: var(--radius);
  padding: calc(var(--space) * 1.25);
  margin: calc(var(--space) * 1.5) 0;
  font-size: 1.1em;
  font-weight: 600;
  line-height: 1.5;
  box-shadow: var(--shadow);
}

blockquote::before {
  content: '"';
  font-size: 2em;
  line-height: 0;
  vertical-align: -0.4em;
  margin-right: 0.1em;
  color: var(--color-accent);
}

aside {
  background-color: var(--color-surface);
  border: 4px solid var(--color-secondary);
  border-radius: var(--radius);
  padding: calc(var(--space) * 1.25);
  margin: calc(var(--space) * 1.5) 0;
  box-shadow: var(--shadow);
}

aside h3, aside h4 {
  color: var(--color-secondary);
  margin-top: 0;
}

table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border: 4px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  margin: calc(var(--space) * 1.5) 0;
  box-shadow: var(--shadow);
  background-color: var(--color-surface);
}

caption {
  font-weight: 700;
  font-size: 1.1em;
  text-align: left;
  padding: calc(var(--space) * 0.75);
  background-color: var(--color-primary);
  color: var(--color-surface);
  border-bottom: 4px solid var(--color-border);
  letter-spacing: -0.01em;
}

thead {
  background-color: var(--color-secondary);
  color: var(--color-surface);
}

th {
  font-weight: 700;
  text-align: left;
  padding: calc(var(--space) * 0.75);
  border-bottom: 3px solid var(--color-border);
  letter-spacing: 0.01em;
}

td {
  padding: calc(var(--space) * 0.75);
  border-bottom: 2px solid var(--color-border);
}

tbody tr:nth-child(odd) {
  background: linear-gradient(to right, var(--color-background) 0%, var(--color-background) 100%);
}

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

tbody tr:hover {
  background: linear-gradient(to right, #e8f4f8 0%, #e8f4f8 100%);
  transition: background 0.2s ease;
}

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

details {
  background-color: var(--color-surface);
  border: 3px solid var(--color-border);
  border-radius: var(--radius);
  padding: calc(var(--space) * 0.75);
  margin-bottom: calc(var(--space) * 0.75);
  box-shadow: 4px 4px 0 var(--color-border);
  transition: border-color 0.2s ease;
}

details[open] {
  border-color: var(--color-accent);
  border-width: 4px;
}

summary {
  font-weight: 700;
  font-size: 1.05em;
  cursor: pointer;
  padding: calc(var(--space) * 0.5);
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.75em;
  transition: color 0.2s ease;
  letter-spacing: -0.01em;
}

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

summary::before {
  content: '▶';
  display: inline-block;
  font-size: 0.8em;
  transition: transform 0.3s ease;
  color: var(--color-accent);
  font-weight: 900;
}

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

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

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

details[open] > *:not(summary) {
  padding: calc(var(--space) * 0.75);
  padding-top: calc(var(--space) * 0.5);
}

footer {
  background-color: var(--color-primary);
  color: var(--color-surface);
  border-top: 4px solid var(--color-border);
  padding: calc(var(--space) * 1.5) var(--space);
  margin-top: auto;
  text-align: center;
}

footer p {
  margin-bottom: 0.5em;
}

footer a {
  color: var(--color-surface);
  font-weight: 600;
}

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

@media (min-width: 768px) {
  header {
    padding: calc(var(--space) * 1.5);
  }

  nav {
    margin-top: var(--space);
    gap: var(--space);
  }

  .grid {
    grid-template-columns: 2fr 1fr;
  }

  .grid.single-column {
    grid-template-columns: 1fr;
  }

  main {
    padding: calc(var(--space) * 2) calc(var(--space) * 1.5);
  }

  table {
    font-size: 1rem;
  }

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

@media (min-width: 1024px) {
  main {
    padding: calc(var(--space) * 2.5) calc(var(--space) * 2);
  }

  .grid {
    gap: calc(var(--space) * 2);
  }

  table {
    position: relative;
  }

  thead {
    position: sticky;
    top: 0;
    z-index: 10;
  }

  thead::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 3px;
    background-color: var(--color-border);
  }
}

@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;
  }

  summary::before {
    transition: none;
  }

  .card:hover {
    transform: none;
  }

  nav a:hover {
    transform: none;
  }
}

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

  header, footer, nav, .breadcrumbs {
    border: none;
    box-shadow: none;
  }

  .card {
    border: 2px solid black;
    box-shadow: none;
    page-break-inside: avoid;
  }

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

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

  details[open] summary::before {
    content: '';
  }

  summary::before {
    content: '';
  }

  table {
    border: 2px solid black;
    box-shadow: none;
  }

  thead {
    background-color: #e0e0e0;
    color: black;
  }
}