:root {
  --color-primary: #1F2A44;
  --color-secondary: #6B2D5C;
  --color-accent: #D4A72C;
  --color-background: #F6F3EE;
  --color-surface: #FFFFFF;
  --color-text: #14161A;
  --color-text-muted: #4E5561;
  --color-border: #D7D1C7;
  --cp-radius: 14px;
  --cp-shadow: 0 10px 30px rgba(31, 42, 68, 0.12);
  --cp-max: 1120px;
}

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

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: var(--color-background);
  background-image: 
    linear-gradient(135deg, rgba(255, 255, 255, 0.02) 0%, transparent 50%),
    linear-gradient(45deg, rgba(107, 45, 92, 0.01) 0%, transparent 100%);
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  grid-template-columns: 100%;
}

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

h1 {
  font-size: clamp(1.75rem, 4vw + 1rem, 2.75rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.5rem, 3vw + 0.75rem, 2.25rem);
  letter-spacing: -0.015em;
}

h3 {
  font-size: clamp(1.25rem, 2vw + 0.5rem, 1.75rem);
}

h4 {
  font-size: clamp(1.1rem, 1.5vw + 0.5rem, 1.4rem);
}

p, li, td, th, dd, dt {
  max-width: 75ch;
}

p {
  margin-bottom: 1em;
}

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

header {
  background: var(--color-surface);
  border-bottom: 2px solid var(--color-border);
  box-shadow: 0 2px 8px rgba(31, 42, 68, 0.06);
  position: sticky;
  top: 0;
  z-index: 100;
}

header > div {
  max-width: var(--cp-max);
  margin: 0 auto;
  padding: 1.25rem 1.5rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

header .site-name {
  font-size: clamp(1.25rem, 2vw + 0.75rem, 1.75rem);
  font-weight: 800;
  color: var(--color-primary);
  text-decoration: none;
  letter-spacing: -0.01em;
}

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;
  font-weight: 600;
  color: var(--color-text);
  padding: 0.5rem 0;
  transition: color 0.2s ease;
  position: relative;
}

nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width 0.3s ease;
}

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

nav a:hover::after {
  width: 100%;
}

nav[aria-label="Breadcrumb"] {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

nav[aria-label="Breadcrumb"] ol {
  max-width: var(--cp-max);
  margin: 0 auto;
  padding: 0.75rem 1.5rem;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.9rem;
}

nav[aria-label="Breadcrumb"] li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

nav[aria-label="Breadcrumb"] li::after {
  content: '›';
  color: var(--color-text-muted);
  font-weight: 600;
}

nav[aria-label="Breadcrumb"] li:last-child::after {
  content: '';
}

nav[aria-label="Breadcrumb"] a {
  color: var(--color-secondary);
  font-weight: 500;
}

main {
  max-width: var(--cp-max);
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
  width: 100%;
}

article, section, aside {
  margin-bottom: 3rem;
}

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

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

aside {
  background: linear-gradient(135deg, rgba(212, 167, 44, 0.08) 0%, rgba(107, 45, 92, 0.05) 100%);
  padding: 1.75rem;
  border-left: 4px solid var(--color-accent);
  border-radius: var(--cp-radius);
  box-shadow: 0 4px 12px rgba(31, 42, 68, 0.08);
}

aside h2, aside h3 {
  color: var(--color-secondary);
}

blockquote {
  background: linear-gradient(to right, rgba(107, 45, 92, 0.06), transparent);
  border-left: 5px solid var(--color-secondary);
  padding: 1.5rem 1.75rem;
  margin: 1.5rem 0;
  font-style: italic;
  color: var(--color-text);
  border-radius: 0 var(--cp-radius) var(--cp-radius) 0;
  position: relative;
}

blockquote::before {
  content: '"';
  font-size: 4rem;
  color: var(--color-secondary);
  opacity: 0.15;
  position: absolute;
  top: -0.5rem;
  left: 1rem;
  font-family: Georgia, serif;
  line-height: 1;
}

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

table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  background: var(--color-surface);
  border-radius: var(--cp-radius);
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(31, 42, 68, 0.08);
  font-size: 0.95rem;
}

caption {
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--color-primary);
  text-align: left;
  padding: 1rem;
  background: linear-gradient(135deg, rgba(31, 42, 68, 0.05), rgba(107, 45, 92, 0.03));
  caption-side: top;
}

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

th {
  padding: 1rem;
  text-align: left;
  font-weight: 700;
  border-bottom: 2px solid var(--color-accent);
}

td {
  padding: 0.9rem 1rem;
  border-bottom: 1px solid var(--color-border);
}

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

tbody tr:nth-child(odd) {
  background: rgba(31, 42, 68, 0.02);
}

tbody tr:hover {
  background: rgba(212, 167, 44, 0.1);
}

tbody tr:focus-within {
  background: rgba(212, 167, 44, 0.15);
  outline: 2px solid var(--color-accent);
  outline-offset: -2px;
}

@media (min-width: 768px) {
  thead {
    position: sticky;
    top: 0;
    z-index: 10;
  }
  
  table {
    font-size: 1rem;
  }
}

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

details:hover {
  border-color: var(--color-accent);
  box-shadow: 0 4px 12px rgba(212, 167, 44, 0.15);
}

details[open] {
  border-color: var(--color-secondary);
  box-shadow: var(--cp-shadow);
}

summary {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-primary);
  cursor: pointer;
  padding: 0.5rem;
  margin: -0.5rem;
  border-radius: calc(var(--cp-radius) - 4px);
  transition: background-color 0.2s ease, color 0.2s ease;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

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

summary::before {
  content: '▸';
  display: inline-block;
  font-size: 1.25rem;
  color: var(--color-accent);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

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

summary:hover {
  background: rgba(212, 167, 44, 0.08);
  color: var(--color-secondary);
}

summary:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
  background: rgba(212, 167, 44, 0.12);
}

details p {
  margin-top: 1rem;
  padding-left: 2rem;
  color: var(--color-text);
}

footer {
  background: var(--color-primary);
  color: var(--color-surface);
  border-top: 3px solid var(--color-accent);
  margin-top: auto;
}

footer > div {
  max-width: var(--cp-max);
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

footer a {
  color: var(--color-accent);
  text-decoration: none;
  font-weight: 600;
}

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

footer nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

footer p {
  color: rgba(246, 243, 238, 0.8);
  font-size: 0.9rem;
  margin-top: 1rem;
}

.content-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin: 2rem 0;
}

@media (min-width: 768px) {
  header > div {
    padding: 1.5rem 2rem;
  }
  
  main {
    padding: 3rem 2rem;
  }
  
  article, section {
    padding: 2.5rem;
  }
  
  .content-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  }
  
  nav ul {
    gap: 2rem;
  }
}

@media (min-width: 1024px) {
  main {
    padding: 4rem 2rem;
  }
  
  article, section {
    padding: 3rem;
  }
  
  aside {
    padding: 2rem;
  }
  
  .content-grid {
    gap: 2.5rem;
  }
}

ul:not(nav ul, nav ol, footer ul) {
  list-style-position: outside;
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

ol:not(nav ol) {
  list-style-position: outside;
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

li:not(nav li) {
  margin-bottom: 0.5rem;
}

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

em {
  font-style: italic;
}

code {
  background: rgba(31, 42, 68, 0.08);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-family: "Courier New", Courier, monospace;
  font-size: 0.9em;
  color: var(--color-secondary);
}

hr {
  border: none;
  border-top: 2px solid var(--color-border);
  margin: 2rem 0;
}

@media print {
  body {
    background: white;
    color: black;
  }
  
  header, footer, nav[aria-label="Breadcrumb"] {
    display: none;
  }
  
  main {
    max-width: 100%;
    padding: 0;
  }
  
  article, section, aside {
    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 {
    border: 1px solid #ccc;
  }
  
  summary::before {
    content: '';
  }
  
  details[open] summary ~ * {
    display: block;
  }
}

:focus {
  outline: 2px solid transparent;
}

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

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
}

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