/* Общие стили. Системные шрифты, без внешних ресурсов. */
:root {
  color-scheme: light dark;
  --bg: #f5f6f8; --surface: #fff; --ink: #202d40; --muted: #5c6879;
  --line: #dce1e8; --accent: #244d75; --soft: #edf2f7;
  --button: #233e5d; --button-text: #fff;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 2rem; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 1rem/1.7 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; }
a { color: var(--accent); text-underline-offset: 0.2em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
a, p, li, dd { overflow-wrap: anywhere; }
a:focus-visible, summary:focus-visible, [tabindex]:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; border-radius: 2px; }
.container { width: min(100% - 5rem, 72rem); margin-inline: auto; }
.skip-link { position: absolute; top: -6rem; left: 1rem; z-index: 10; padding: 0.6rem 1rem; background: var(--surface); }
.skip-link:focus { top: 1rem; }
.site-header { background: var(--surface); border-bottom: 1px solid var(--line); }
.header-inner { min-height: 6rem; display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.brand { display: flex; align-items: center; gap: 0.85rem; color: var(--ink); text-decoration: none; }
.brand-mark { display: grid; place-items: center; flex: 0 0 2.6rem; width: 2.6rem; height: 2.6rem; border: 1px solid var(--line); font: 1.8rem/1 Georgia, "Times New Roman", serif; color: var(--accent); }
.brand-name { display: block; font-size: 1rem; font-weight: 650; line-height: 1.35; }
.brand-subtitle { display: block; margin-top: 0.2rem; color: var(--muted); font-size: 0.75rem; line-height: 1.4; }
.header-actions, .primary-nav, .language-nav { display: flex; align-items: center; gap: 1.5rem; }
.header-actions { gap: 2rem; }
.primary-nav a, .language-nav a { text-decoration: none; font-size: 0.85rem; color: var(--muted); padding-block: 0.7rem; }
.primary-nav a:hover, .language-nav a:hover { color: var(--ink); text-decoration: underline; }
.primary-nav [aria-current="page"] { color: var(--ink); text-decoration: underline; text-underline-offset: 0.55rem; }
.language-nav { gap: 0.25rem; border-left: 1px solid var(--line); padding-left: 1.25rem; }
.language-nav a { min-width: 2.4rem; padding: 0.45rem 0.5rem; text-align: center; }
.language-nav [aria-current="true"] { color: var(--ink); background: var(--soft); border-radius: 3px; font-weight: 600; }
.page-heading { padding-block: 3.5rem 2.5rem; }
.eyebrow { color: var(--accent); font-size: 0.72rem; font-weight: 650; letter-spacing: 0.12em; text-transform: uppercase; margin: 0 0 1rem; }
h1, h2, h3 { font-weight: 600; color: var(--ink); }
h1 { font-size: clamp(2rem, 3.6vw, 3rem); letter-spacing: -0.035em; line-height: 1.17; margin: 0; }
.lead { max-width: 48rem; color: var(--muted); margin: 1rem 0 0; font-size: 1.06rem; }
.document-meta { display: flex; flex-wrap: wrap; gap: 0.8rem 2.5rem; margin-top: 1.75rem; }
.document-meta div { display: grid; gap: 0.15rem; }
.document-meta dt { font-weight: 400; color: var(--muted); font-size: 0.75rem; }
.document-meta dd { margin: 0; font-size: 0.85rem; }
.document-layout { display: grid; grid-template-columns: 13.5rem minmax(0, 1fr); gap: 2.5rem; align-items: start; }
.contents { position: sticky; top: 2rem; max-height: calc(100vh - 4rem); overflow-y: auto; padding: 0.5rem 0.25rem; }
.contents-title { margin: 0 0 1rem; color: var(--muted); font-size: 0.72rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; }
.contents ol { margin: 0; padding: 0; list-style: none; }
.contents li { margin: 0; }
.contents a { display: block; padding: 0.42rem 0; color: var(--muted); text-decoration: none; font-size: 0.82rem; line-height: 1.45; }
.contents a:hover { color: var(--accent); text-decoration: underline; }
.sidebar-contact { margin: 1.5rem 0 0; border-top: 1px solid var(--line); padding-top: 1.1rem; color: var(--muted); font-size: 0.78rem; }
.sidebar-contact a { color: var(--accent); font-size: 0.78rem; }
.mobile-contents { display: none; }
.document { min-width: 0; padding: 2.5rem 3rem; background: var(--surface); border: 1px solid var(--line); border-radius: 4px; }
.document section { scroll-margin-top: 2rem; }
.document section + section { margin-top: 2.5rem; padding-top: 2.25rem; border-top: 1px solid var(--line); }
h2 { margin: 0 0 1.1rem; font-size: 1.3rem; line-height: 1.4; letter-spacing: -0.015em; }
h3 { margin: 1.5rem 0 0.65rem; font-size: 1rem; line-height: 1.5; }
p { margin: 0 0 1rem; }
p:last-child { margin-bottom: 0; }
ul, ol { padding-left: 1.35rem; margin: 0 0 1rem; }
li { margin-block: 0.5rem; padding-left: 0.2rem; }
li::marker { color: var(--muted); }
strong { font-weight: 600; }
.summary { padding: 1.4rem 1.5rem; margin-bottom: 2.5rem; background: var(--soft); border-left: 3px solid var(--accent); }
.summary h2 { font-size: 0.95rem; margin-bottom: 0.8rem; }
.summary ul { margin: 0; }
.summary li { font-size: 0.91rem; }
.summary li:last-child { margin-bottom: 0; }
.details-list { margin: 1.25rem 0; }
.details-list dt { font-weight: 600; margin-top: 1.25rem; }
.details-list dd { margin: 0.3rem 0 0; }
.identity { display: grid; grid-template-columns: 9rem 1fr; gap: 0.45rem 1rem; margin: 1.25rem 0; }
.identity dt { color: var(--muted); }
.identity dd { margin: 0; }
.table-wrap { margin-block: 1.5rem; }
table { width: 100%; border-collapse: collapse; font-size: 0.85rem; line-height: 1.6; }
th, td { text-align: left; vertical-align: top; padding: 0.9rem 0.85rem; border: 1px solid var(--line); overflow-wrap: anywhere; }
th { background: var(--soft); font-weight: 600; }
td:first-child { width: 26%; font-weight: 500; }
td:nth-child(2) { width: 27%; }
.contact-panel { padding-bottom: 2rem; margin-bottom: 2rem; border-bottom: 1px solid var(--line); }
.contact-panel h2 { margin-bottom: 0.5rem; font-size: 1.45rem; }
.contact-email { display: inline-block; font-size: clamp(1.1rem, 2.5vw, 1.6rem); margin-bottom: 1rem; }
.contact-caption { color: var(--muted); font-size: 0.9rem; }
.button { display: inline-flex; justify-content: center; align-items: center; gap: 1rem; padding: 0.7rem 1.15rem; border: 1px solid var(--button); border-radius: 3px; background: var(--button); color: var(--button-text); text-decoration: none; font-size: 0.9rem; font-weight: 500; }
.button:hover { text-decoration: underline; }
.note { color: var(--muted); font-size: 0.9rem; border-left: 2px solid var(--line); padding-left: 1rem; }
.faq { margin-top: 1.5rem; }
.faq details { border-top: 1px solid var(--line); }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { padding: 1rem 0.2rem; cursor: pointer; font-weight: 500; }
.faq details p { padding: 0 0.2rem 1.2rem; margin: 0; }
.site-footer { margin-top: 4rem; padding-block: 1.75rem 2rem; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.8rem; }
.footer-inner { display: flex; justify-content: space-between; gap: 1.5rem; }
.footer-name { color: var(--ink); font-weight: 600; margin-bottom: 0.25rem; }
.footer-links { display: flex; flex-wrap: wrap; align-items: start; gap: 0.5rem 1.5rem; }
.footer-links a { color: var(--muted); }
.directory { max-width: 54rem; padding-top: 0.5rem; }
.language-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.5rem; }
.language-card { border: 1px solid var(--line); border-radius: 4px; background: var(--surface); padding: 2rem; }
.language-card h2 { font-size: 1.5rem; margin-bottom: 0.4rem; }
.language-card p { color: var(--muted); font-size: 0.9rem; margin-bottom: 1.75rem; }
.document-link { display: flex; align-items: baseline; justify-content: space-between; gap: 0.5rem; border-top: 1px solid var(--line); padding: 1rem 0; text-decoration: none; font-size: 0.95rem; }
.document-link:last-child { padding-bottom: 0; }
.document-link:hover { text-decoration: underline; }
.directory-contact { margin: 1.75rem 0 0; color: var(--muted); font-size: 0.9rem; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
@media (prefers-color-scheme: dark) {
  :root { --bg: #111820; --surface: #18222e; --ink: #e3e9f1; --muted: #a9b6c7; --line: #344253; --accent: #abc9ea; --soft: #222f3f; --button: #b3cce7; --button-text: #142233; }
}
@media (max-width: 64rem) {
  .container { width: calc(100% - 3rem); }
  .header-actions { gap: 1rem; }
  .primary-nav { gap: 1rem; }
  .document-layout { gap: 1.5rem; grid-template-columns: 12rem minmax(0, 1fr); }
  .document { padding: 2rem; }
}
@media (max-width: 54rem) {
  .header-inner { flex-wrap: wrap; padding-block: 1.25rem 0.75rem; gap: 1rem; }
  .header-actions { width: 100%; justify-content: space-between; }
  .page-heading { padding-block: 2.5rem 2rem; }
  .document-layout { grid-template-columns: 1fr; }
  .contents { display: none; }
  .mobile-contents { display: block; border-block: 1px solid var(--line); margin-bottom: 1.5rem; font-size: 0.9rem; }
  .mobile-contents summary { cursor: pointer; font-weight: 500; padding: 0.9rem 0; }
  .mobile-contents ol { list-style: none; padding: 0 0 0.75rem; margin: 0; columns: 2; column-gap: 2rem; }
  .mobile-contents li { break-inside: avoid; margin: 0; padding: 0; }
  .mobile-contents a { display: block; padding-block: 0.4rem; text-decoration: none; }
  .mobile-contents a:hover { text-decoration: underline; }
}
@media (max-width: 38rem) {
  .container { width: calc(100% - 2rem); }
  .brand-name { font-size: 0.95rem; }
  .brand-subtitle { font-size: 0.7rem; }
  .header-actions, .primary-nav { gap: 0.75rem; }
  .primary-nav a { font-size: 0.8rem; }
  .language-nav { padding-left: 0.5rem; }
  .language-nav a { min-width: 2.2rem; font-size: 0.8rem; }
  h1 { font-size: clamp(1.65rem, 7vw, 2.2rem); hyphens: auto; }
  .lead { font-size: 0.95rem; }
  .document-meta { gap: 0.85rem 1.5rem; margin-bottom: 0; }
  .document-meta dd { font-size: 0.8rem; }
  .document { padding: 1.5rem 1.15rem; }
  .document section + section { margin-top: 2rem; padding-top: 1.75rem; }
  h2 { font-size: 1.18rem; }
  .summary { padding: 1rem; margin-bottom: 2rem; }
  .identity { grid-template-columns: 1fr; gap: 0.1rem; }
  .identity dd { margin-bottom: 0.5rem; }
  .mobile-contents ol { columns: 1; }
  table, tbody, tr, td { display: block; width: 100%; }
  thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
  tbody tr { border: 1px solid var(--line); border-radius: 3px; margin-bottom: 1rem; }
  td { border: 0; border-top: 1px solid var(--line); }
  td:first-child, td:nth-child(2) { width: auto; }
  td:first-child { border: 0; background: var(--soft); font-weight: 600; }
  td::before { content: attr(data-label); display: block; color: var(--muted); font-size: 0.73rem; font-weight: 500; margin-bottom: 0.25rem; }
  .footer-inner { flex-direction: column; }
  .site-footer { margin-top: 2.5rem; }
  .language-grid { grid-template-columns: 1fr; gap: 1rem; }
  .language-card { padding: 1.5rem; }
}
@media print {
  :root { color-scheme: light; --bg: #fff; --surface: #fff; --ink: #000; --muted: #333; --line: #aaa; --accent: #000; --soft: #fff; }
  body { font-size: 10pt; }
  .container { width: 100%; }
  .site-header, .contents, .mobile-contents, .skip-link, .button, .footer-links { display: none; }
  .page-heading { padding: 0 0 1.5rem; }
  h1 { font-size: 24pt; }
  h2 { font-size: 14pt; }
  h2, h3 { break-after: avoid; }
  .document-layout { display: block; }
  .document { border: 0; padding: 0; }
  .summary { break-inside: avoid; border: 1px solid var(--line); }
  .document section + section { margin-top: 1.5rem; padding-top: 1rem; }
  table { display: table; font-size: 9pt; }
  thead { display: table-header-group; position: static; width: auto; height: auto; clip-path: none; }
  tbody { display: table-row-group; }
  tr { display: table-row; break-inside: avoid; }
  th, td { display: table-cell; width: auto; border: 1px solid var(--line); }
  td:first-child, td:nth-child(2) { width: auto; }
  td::before { content: none; }
  .faq details::details-content { content-visibility: visible; }
  .faq details > p { display: block; }
  .site-footer { margin-top: 2rem; }
}