:root {
  --color-primary: #1E3A5F;
  --color-secondary: #2F6F6D;
  --color-accent: #C86B3C;
  --color-background: #F6F2EA;
  --color-surface: #FFFFFF;
  --color-text: #1A1D21;
  --color-text-muted: #4B5563;
  --color-border: #D7D0C6;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(26, 29, 33, 0.10);
  --measure: 68ch;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-background);
  font-size: 1rem;
}

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

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

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

h1 {
  font-size: clamp(1.953rem, 4vw + 1rem, 3.815rem);
  line-height: 1.1;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

h2 {
  font-size: clamp(1.563rem, 3vw + 0.8rem, 2.441rem);
  line-height: 1.2;
  font-weight: 600;
  color: var(--color-primary);
  margin-top: 2.5rem;
  margin-bottom: 0.875rem;
}

h3 {
  font-size: clamp(1.25rem, 2vw + 0.6rem, 1.953rem);
  line-height: 1.3;
  font-weight: 600;
  color: var(--color-secondary);
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

p {
  max-width: var(--measure);
  margin-bottom: 1rem;
}

a {
  color: var(--color-secondary);
  text-decoration: underline;
  text-decoration-thickness: 0.125em;
  text-underline-offset: 0.15em;
  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: 3px;
  border-radius: 2px;
}

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

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

header .header-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1.25rem 1.5rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

header .site-name {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
}

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

nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  align-items: center;
}

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

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

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

main {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

footer {
  background-color: var(--color-primary);
  color: var(--color-surface);
  margin-top: 3rem;
}

footer .footer-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

footer p {
  color: var(--color-surface);
  margin: 0;
}

footer a {
  color: var(--color-surface);
  text-decoration-color: rgba(255, 255, 255, 0.5);
}

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

.breadcrumbs {
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
}

.breadcrumbs ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.breadcrumbs li:not(:last-child)::after {
  content: "›";
  margin-left: 0.5rem;
  color: var(--color-text-muted);
}

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

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

section, article, aside {
  background-color: var(--color-surface);
  padding: 2rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

aside {
  background-color: var(--color-background);
  border: 2px solid var(--color-border);
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  background-color: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}

caption {
  font-weight: 600;
  text-align: left;
  padding: 1rem;
  background-color: var(--color-background);
  border-bottom: 2px solid var(--color-border);
  color: var(--color-primary);
}

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

th {
  padding: 0.875rem 1rem;
  text-align: left;
  font-weight: 600;
}

td {
  padding: 0.875rem 1rem;
  border-bottom: 1px solid var(--color-border);
}

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

tbody tr:hover {
  background-color: rgba(47, 111, 109, 0.08);
  transition: background-color 0.2s ease;
}

details {
  background-color: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 1rem;
  transition: background-color 0.2s ease;
}

details:hover {
  background-color: var(--color-background);
}

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

summary {
  font-weight: 600;
  cursor: pointer;
  color: var(--color-primary);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: color 0.2s ease;
  user-select: none;
}

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

summary::after {
  content: "+";
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-accent);
  transition: transform 0.3s ease;
  flex-shrink: 0;
  margin-left: 1rem;
}

details[open] summary::after {
  content: "−";
  transform: rotate(180deg);
}

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

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

details[open] summary {
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--color-border);
}

details p {
  margin-top: 0.5rem;
}

blockquote {
  margin: 2rem 0;
  padding: 1.5rem;
  background-color: rgba(246, 242, 234, 0.5);
  border-left: 6px solid var(--color-accent);
  border-radius: var(--radius);
  font-style: italic;
  color: var(--color-text);
}

blockquote p {
  margin-bottom: 0.5rem;
}

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

ul, ol {
  margin: 1rem 0 1rem 1.5rem;
  max-width: var(--measure);
}

li {
  margin-bottom: 0.5rem;
}

strong {
  font-weight: 600;
  color: var(--color-primary);
}

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

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;
}

@media (min-width: 768px) {
  main {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  main.has-aside {
    grid-template-columns: 1fr 320px;
  }

  aside {
    grid-column: 2;
    align-self: start;
    position: sticky;
    top: 120px;
  }

  header .header-inner {
    padding: 1.5rem 2rem;
  }

  main {
    padding: 3rem 2rem;
  }

  footer .footer-inner {
    padding: 2.5rem 2rem;
  }

  section, article {
    padding: 2.5rem;
  }
}

@media (min-width: 1024px) {
  main {
    gap: 3rem;
  }

  main.has-aside {
    grid-template-columns: 1fr 380px;
  }

  header .header-inner {
    padding: 1.75rem 3rem;
  }

  main {
    padding: 4rem 3rem;
  }

  footer .footer-inner {
    padding: 3rem;
  }

  section, article, aside {
    padding: 3rem;
  }

  table {
    font-size: 1rem;
  }
}

@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;
  }

  summary::after {
    transition: none;
  }

  details[open] summary::after {
    transform: none;
  }
}

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

  header, footer {
    background-color: white;
    color: black;
    border: 1px solid black;
  }

  section, article, aside {
    background-color: white;
    box-shadow: none;
    border: 1px solid black;
    page-break-inside: avoid;
  }

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

  nav {
    display: none;
  }

  details summary::after {
    display: none;
  }

  details {
    border: 1px solid black;
  }

  table {
    border: 1px solid black;
  }

  thead {
    background-color: #f0f0f0;
    color: black;
  }

  tbody tr:nth-child(even) {
    background-color: #f8f8f8;
  }
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

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