/* Matildaintec — дизайн-система «Справочник»
   Сдержанная бело-серая палитра, узкие читаемые колонки, компактная боковая навигация,
   выделенные справочные заметки. Без внешних шрифтов и зависимостей. */

:root {
  --paper: #ffffff;
  --page: #f6f6f4;
  --rail: #efefec;
  --rule: #d9d9d4;
  --rule-strong: #b9b9b2;
  --ink: #1f2226;
  --ink-soft: #50555c;
  --ink-faint: #6b7078;
  --blue: #23466e;          /* контраст на белом ≈ 9.5:1 */
  --blue-tint: #eef2f7;
  --amber: #7a4a00;
  --amber-tint: #fbf3e4;
  --focus: #1b5fd0;
  --container: 1160px;
  --measure: 68ch;
  --serif: Charter, "Bitstream Charter", "Iowan Old Style", "PT Serif", Georgia, "Times New Roman", serif;
  --sans: "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 16px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body { margin: 0; background: var(--page); color: var(--ink); font: 1.0625rem/1.68 var(--serif); overflow-x: hidden; }
a { color: var(--blue); text-decoration-thickness: 1px; text-underline-offset: .16em; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }

h1, h2, h3 { font-family: var(--sans); color: var(--ink); line-height: 1.25; margin: 0 0 .55em; }
h1 { font-size: clamp(1.75rem, 1.3rem + 1.8vw, 2.45rem); font-weight: 700; letter-spacing: -.01em; }
h2 { font-size: 1.35rem; font-weight: 700; margin-top: 0; }
h3 { font-size: 1.05rem; font-weight: 700; }
p { margin: 0 0 1em; }
small, .meta { font-family: var(--sans); font-size: .82rem; color: var(--ink-faint); }

.container { width: 100%; max-width: var(--container); margin-left: auto; margin-right: auto; padding-left: 16px; padding-right: 16px; }
@media (min-width: 720px) { .container { padding-left: 28px; padding-right: 28px; } }

.skip-link { position: absolute; left: 12px; top: -60px; z-index: 100; background: var(--blue); color: #fff; padding: 10px 16px; font: 700 .95rem var(--sans); text-decoration: none; }
.skip-link:focus { top: 12px; color: #fff; }

/* ---------- Шапка ---------- */
.site-header { background: var(--paper); border-bottom: 1px solid var(--rule); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 10px 16px; flex-wrap: wrap; min-height: 58px; padding-top: 6px; padding-bottom: 6px; }
.brand { display: inline-flex; align-items: baseline; gap: 10px; text-decoration: none; color: var(--ink); flex-wrap: wrap; }
.brand-name { font: 700 1.15rem var(--sans); letter-spacing: .06em; text-transform: uppercase; }
.brand-name::first-letter { color: var(--blue); }
.brand-tag { font: .8rem var(--sans); color: var(--ink-faint); }
.header-tools { display: flex; align-items: center; gap: 10px; }
.nav-toggle {
  display: inline-flex; align-items: center; gap: 8px; min-height: 44px; padding: 8px 12px; cursor: pointer;
  font: 600 .92rem var(--sans); color: var(--ink); background: var(--paper); border: 1px solid var(--rule-strong); border-radius: 4px;
}
.nav-toggle-bars, .nav-toggle-bars::before, .nav-toggle-bars::after { display: block; width: 16px; height: 2px; background: currentColor; position: relative; content: ""; }
.nav-toggle-bars::before { position: absolute; top: -5px; }
.nav-toggle-bars::after { position: absolute; top: 5px; }
.lang-switch { list-style: none; margin: 0; padding: 0; display: flex; gap: 2px; font-family: var(--sans); }
.lang-switch a, .lang-switch span { display: inline-block; min-width: 36px; min-height: 36px; padding: 7px 6px; text-align: center; font-size: .8rem; font-weight: 600; text-transform: uppercase; color: var(--ink-soft); text-decoration: none; border-radius: 3px; }
.lang-switch a:hover { background: var(--rail); color: var(--ink); }
.lang-switch [aria-current="true"] { color: var(--blue); box-shadow: inset 0 -2px 0 var(--blue); }

/* ---------- Раскладка: боковая навигация + узкая колонка ---------- */
.layout { display: block; }
.side-nav { display: none; background: var(--rail); border: 1px solid var(--rule); border-radius: 4px; padding: 10px; margin-top: 12px; font-family: var(--sans); }
.side-nav.is-open { display: block; }
.no-js .side-nav { display: block; }
.no-js .nav-toggle { display: none; }
.side-nav p { font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-faint); margin: 4px 8px 8px; }
.side-nav ul { list-style: none; margin: 0; padding: 0; }
.side-nav a { display: block; padding: 8px 10px; color: var(--ink); text-decoration: none; font-size: .93rem; border-left: 3px solid transparent; border-radius: 0 3px 3px 0; }
.side-nav a:hover { background: var(--paper); }
.side-nav a[aria-current="page"] { border-left-color: var(--blue); background: var(--paper); color: var(--blue); font-weight: 600; }

@media (min-width: 980px) {
  .nav-toggle { display: none; }
  .layout { display: grid; grid-template-columns: 230px minmax(0, 1fr); gap: 36px; align-items: start; }
  .side-nav { display: block; position: sticky; top: 16px; margin-top: 24px; }
}

/* ---------- Хлебные крошки ---------- */
.breadcrumbs { padding-top: 18px; font: .85rem var(--sans); }
.breadcrumbs ol { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 4px; }
.breadcrumbs li { color: var(--ink-faint); }
.breadcrumbs li + li::before { content: "›"; margin: 0 4px 0 2px; color: var(--rule-strong); }
.breadcrumbs a { color: var(--ink-soft); }

/* ---------- Лист статьи ---------- */
.sheet { background: var(--paper); border: 1px solid var(--rule); border-radius: 4px; padding: 26px 20px 30px; margin-top: 16px; }
@media (min-width: 720px) { .sheet { padding: 40px 48px 44px; } }
.sheet > * { max-width: var(--measure); }
.sheet > .wide { max-width: none; }
.kicker { font: 600 .75rem var(--sans); letter-spacing: .12em; text-transform: uppercase; color: var(--blue); margin-bottom: .8em; }
.lead { font-size: 1.15rem; color: var(--ink-soft); }
.block { margin-top: 34px; padding-top: 4px; }
.block > h2 { padding-bottom: 6px; border-bottom: 1px solid var(--rule); }
.section-intro { color: var(--ink-soft); }

.toc { font-family: var(--sans); font-size: .93rem; border-left: 3px solid var(--rule); padding: 4px 0 4px 14px; margin: 22px 0 0; }
.toc h2 { font-size: .75rem; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-faint); border: 0; margin-bottom: 6px; padding: 0; }
.toc ol { margin: 0; padding-left: 1.2em; }
.toc li { margin: 2px 0; }

/* ---------- Справочная заметка — характерный элемент ---------- */
.note { background: var(--blue-tint); border-left: 4px solid var(--blue); padding: 14px 18px; border-radius: 0 4px 4px 0; margin-top: 18px; }
.note-label { display: inline-flex; gap: 8px; align-items: center; font: 700 .72rem var(--sans); letter-spacing: .1em; text-transform: uppercase; color: var(--blue); margin-bottom: 6px; }
.jur { font: 600 .7rem var(--sans); letter-spacing: .02em; text-transform: none; color: var(--ink); background: var(--paper); border: 1px solid var(--rule-strong); border-radius: 999px; padding: 1px 8px; }
.note p { margin: 0; }
.note-warn { background: var(--amber-tint); border-left-color: var(--amber); }
.note-warn .note-label { color: var(--amber); }

.provenance { border: 1px dashed var(--rule-strong); background: var(--page); padding: 14px 18px; border-radius: 4px; margin-top: 22px; }
.provenance h2 { font-size: .8rem; letter-spacing: .1em; text-transform: uppercase; color: var(--amber); border: 0; padding: 0; }
.status-badge { display: inline-block; font: 600 .78rem var(--sans); padding: 3px 10px; border-radius: 3px; background: var(--ink); color: #fff; }

/* ---------- Списки, шаги, карточки ---------- */
.bullets { margin: 0; padding-left: 1.2em; }
.bullets li { margin-bottom: 6px; }
.checklist { list-style: none; margin: 0; padding: 0; }
.checklist li { position: relative; padding-left: 28px; margin-bottom: 6px; }
.checklist li::before { content: ""; position: absolute; left: 0; top: .45em; width: 14px; height: 14px; border: 2px solid var(--blue); border-radius: 2px; }
.panel { background: var(--page); border: 1px solid var(--rule); border-radius: 4px; padding: 16px 18px; margin-top: 22px; }
.panel h2 { font-size: 1rem; border: 0; padding: 0; }

.steps { list-style: none; margin: 0; padding: 0; counter-reset: s; }
.step { counter-increment: s; position: relative; padding: 0 0 18px 48px; border-left: 1px solid var(--rule); margin-left: 15px; }
.step:last-child { border-left-color: transparent; }
.step::before { content: counter(s); position: absolute; left: -16px; top: 0; width: 32px; height: 32px; border-radius: 50%; background: var(--paper); border: 2px solid var(--blue); color: var(--blue); display: grid; place-items: center; font: 700 .9rem var(--sans); }
.step h2, .step h3 { margin: 4px 0 4px; font-size: 1.08rem; border: 0; padding: 0; }
.step p { margin: 0 0 6px; }
.example { font-size: .95rem; color: var(--ink-soft); margin-top: 6px; }
.example::before { content: "→ "; color: var(--blue); }

.entries { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; border-top: 1px solid var(--rule); }
.entries li { border-bottom: 1px solid var(--rule); padding: 12px 0; }
.entries a { font: 600 1.02rem var(--sans); }
.entries p { margin: 4px 0 0; color: var(--ink-soft); }
@media (min-width: 900px) { .entries.two-col { grid-template-columns: 1fr 1fr; column-gap: 32px; } }
.level { font: 600 .7rem var(--sans); letter-spacing: .06em; text-transform: uppercase; padding: 1px 8px; border-radius: 999px; margin-left: 6px; vertical-align: 2px; }
.level-basic { background: var(--blue-tint); color: var(--blue); }
.level-advanced { background: var(--amber-tint); color: var(--amber); }
.ru-only { font: .8rem var(--sans); color: var(--ink-faint); }

.paths { display: grid; gap: 12px; }
@media (min-width: 760px) { .paths { grid-template-columns: repeat(3, 1fr); } }
.path { border: 1px solid var(--rule); border-top: 3px solid var(--blue); border-radius: 4px; padding: 14px 16px; background: var(--paper); position: relative; }
.path h3 { font-size: 1rem; }
.path h3 a { color: var(--ink); text-decoration: none; }
.path h3 a::after { content: ""; position: absolute; inset: 0; }
.path:hover { border-color: var(--blue); }
.path:focus-within { outline: 3px solid var(--focus); outline-offset: 2px; }
.path h3 a:focus-visible { outline: none; }
.path p { margin: 0; color: var(--ink-soft); font-size: .97rem; }

/* ---------- Таблицы и термины ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--rule); border-radius: 4px; }
table { width: 100%; border-collapse: collapse; font: .95rem/1.5 var(--sans); }
th, td { text-align: left; vertical-align: top; padding: 10px 12px; border-bottom: 1px solid var(--rule); }
thead th { background: var(--rail); font-weight: 700; }
tbody tr:last-child > * { border-bottom: 0; }
dl.terms { margin: 0; }
dl.terms dt { font: 700 1rem var(--sans); margin-top: 14px; }
dl.terms dd { margin: 2px 0 0; color: var(--ink-soft); }

/* ---------- Лента и архив ---------- */
.feed { list-style: none; margin: 0; padding: 0; }
.feed > li { display: grid; grid-template-columns: 1fr; gap: 2px; padding: 14px 0; border-bottom: 1px solid var(--rule); }
@media (min-width: 640px) { .feed > li { grid-template-columns: 120px 1fr; column-gap: 18px; } .feed > li > div { grid-column: 2; } .feed > li > time { grid-row: span 2; } }
.feed time { font: 600 .85rem var(--sans); color: var(--ink-faint); }
.feed h3 { margin: 0 0 4px; font-size: 1.05rem; }
.feed p { margin: 0 0 4px; }
.why { font-size: .95rem; color: var(--ink-soft); }
.tag-list { display: flex; flex-wrap: wrap; gap: 6px; list-style: none; padding: 0; margin: 6px 0 0; }
.tag-list li, .tag { font: 600 .74rem var(--sans); background: var(--rail); border: 1px solid var(--rule); border-radius: 999px; padding: 1px 9px; color: var(--ink-soft); }
.filter { display: flex; flex-wrap: wrap; gap: 6px; margin: 14px 0 4px; font-family: var(--sans); }
.filter button { font: 600 .85rem var(--sans); min-height: 36px; padding: 6px 12px; border: 1px solid var(--rule-strong); background: var(--paper); border-radius: 999px; cursor: pointer; color: var(--ink); }
.filter button[aria-pressed="true"] { background: var(--blue); border-color: var(--blue); color: #fff; }
.year { font: 700 1.4rem var(--sans); color: var(--ink-faint); margin-top: 22px; }
[hidden] { display: none !important; }

/* ---------- Вопросы (аккордеон на details) ---------- */
.qa details { border-bottom: 1px solid var(--rule); }
.qa summary { cursor: pointer; list-style: none; padding: 14px 32px 14px 0; position: relative; font: 600 1.02rem var(--sans); }
.qa summary::-webkit-details-marker { display: none; }
.qa summary::after { content: "+"; position: absolute; right: 4px; top: 10px; font-size: 1.35rem; color: var(--blue); }
.qa details[open] summary::after { content: "−"; }
.qa details p { margin: 0 0 14px; color: var(--ink-soft); }
.qa-static h3 { margin: 18px 0 4px; }
.qa-static p { margin: 0; color: var(--ink-soft); }

/* ---------- Каталог ---------- */
.catalog { border: 1px solid var(--rule-strong); border-radius: 4px; padding: 20px; background: var(--page); }
.catalog-empty { font: .92rem var(--sans); border: 1px dashed var(--rule-strong); padding: 12px 14px; background: var(--paper); color: var(--ink-soft); }
.catalog-cols { display: grid; gap: 18px; margin-top: 16px; }
@media (min-width: 820px) { .catalog-cols { grid-template-columns: 1fr 1fr; } }

/* ---------- Подвал ---------- */
.site-footer { margin-top: 40px; background: var(--paper); border-top: 1px solid var(--rule); padding: 30px 0 20px; font: .92rem/1.6 var(--sans); color: var(--ink-soft); }
.footer-grid { display: grid; gap: 22px; }
@media (min-width: 820px) { .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; } }
.site-footer h2 { font-size: .74rem; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-faint); }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 4px; }
.footer-bottom { border-top: 1px solid var(--rule); margin-top: 22px; padding-top: 12px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; font-size: .82rem; }
.sources { font-size: .93rem; color: var(--ink-soft); }
.sources ul { padding-left: 1.2em; }
.actuality { font: .85rem var(--sans); color: var(--ink-faint); border-top: 1px solid var(--rule); padding-top: 10px; }

@media print {
  .site-header, .side-nav, .site-footer, .skip-link, .filter { display: none !important; }
  body, .sheet { background: #fff; border: 0; }
}

/* === Статьи-размещения и список публикаций (postbuild.py) === */
.pub-wrap { padding-top: 8px; padding-bottom: 48px; }
.pub { max-width: 780px; background: #ffffff; color: #1f2226; border: 1px solid #d9d9d4; border-radius: 4px; padding: clamp(18px, 4vw, 44px); overflow-wrap: break-word; }
.pub-kicker { margin: 0 0 8px; font-size: .78rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: #7a4a00; }
.pub h1 { font-family: var(--serif); font-size: clamp(1.55rem, 3.4vw, 2.25rem); line-height: 1.2; margin: 0 0 14px; }
.pub-lead { font-size: 1.12rem; line-height: 1.6; margin: 0; }
.pub-meta { margin: 18px 0 22px; padding: 8px 0; border-top: 1px solid #d9d9d4; border-bottom: 1px solid #d9d9d4; font-size: .85rem; color: #50555c; }
.pub-toc { margin: 0 0 8px; padding: 12px 18px; border: 1px solid #d9d9d4; border-radius: 4px; }
.pub .pub-toc h2 { font-size: .95rem; margin: 0 0 6px; font-family: inherit; }
.pub-toc ol { margin: 0; padding-left: 1.3em; }
.pub-toc li { margin: 3px 0; }
.pub h2 { font-family: var(--serif); font-size: 1.35rem; line-height: 1.3; margin: 30px 0 10px; scroll-margin-top: 16px; }
.pub p, .pub li { line-height: 1.65; }
.pub ul, .pub ol { padding-left: 1.3em; }
.pub li { margin: 5px 0; }
.pub a { color: #23466e; text-decoration-thickness: 1px; text-underline-offset: 2px; overflow-wrap: anywhere; }
.pub-note { margin: 18px 0; padding: 12px 16px; background: #fbf3e4; border-left: 4px solid #7a4a00; border-radius: 0 4px 4px 0; }
.pub-note p { margin: 0; }
.pub-sources { margin-top: 28px; font-size: .92rem; }
.pub-foot { margin-top: 30px; padding-top: 12px; border-top: 1px solid #d9d9d4; font-size: .92rem; }
.pub-list { list-style: none; margin: 16px 0 24px; padding: 0; display: grid; gap: 12px; }
.pub-list li { background: #ffffff; border: 1px solid #d9d9d4; border-radius: 4px; padding: 14px 16px; }
.pub-list a { font-family: var(--serif); font-weight: 700; font-size: 1.05rem; color: #23466e; overflow-wrap: anywhere; }
.pub-list p { margin: 6px 0 4px; color: #50555c; font-size: .95rem; line-height: 1.5; }
.pub-list-meta { font-size: .8rem; color: #50555c; }
.pub { margin-top: 14px; }