/* ============================================================
   Дизайн-система [БРЕНД] — единственный источник стилей.
   Контрасты WCAG AA: текст ≥ 4.5, крупный текст/иконки ≥ 3.0
   ============================================================ */

@font-face {
  font-family: "Inter";
  font-style: normal; font-weight: 100 900; font-display: swap;
  src: url("/assets/fonts/InterVariable.woff2") format("woff2");
}

:root {
  --blue: #0f6da3;          /* ссылки, акцентный текст: 5.1+ на белом и на blue-soft */
  --blue-btn: #1877b0;      /* фон кнопок с белым текстом: 4.88 */
  --blue-btn-hover: #0f6397;
  --blue-soft: #eaf6fd;
  --blue-border: #bfe0f2;
  --navy: #123b5c;          /* заголовки: 11.6 */
  --ink: #28455c;           /* основной текст: 10.0 */
  --gray: #5b7183;          /* вторичный текст: 5.08 */
  --border: #d8e4ec;
  --bg-soft: #f4f9fc;
  --green: #157347; --green-bg: #e7f7ee;   /* 5.30 */
  --amber: #8a5a13; --amber-bg: #fdf4e0;   /* 5.40 */
  --red: #b02e56;   --red-bg: #fdecef;     /* 5.46 */
  --radius: 14px;
  --shadow: 0 2px 12px rgba(18, 59, 92, .07);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "Inter", -apple-system, "Segoe UI", "Roboto", sans-serif;
  color: var(--ink);
  background: #fff;
  line-height: 1.65;
  font-size: 16.5px;
  -webkit-font-smoothing: antialiased;
}
.container { max-width: 1120px; margin: 0 auto; padding: 0 22px; }
h1, h2, h3, h4 { color: var(--navy); line-height: 1.25; font-weight: 700; }
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
img, svg { max-width: 100%; }

/* Доступность: skip-link и фокус */
.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 200;
  background: var(--navy); color: #fff; padding: 10px 18px; border-radius: 0 0 10px 0;
}
.skip-link:focus { left: 0; }
:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 2px;
  border-radius: 4px;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

/* ---------- Шапка ---------- */
.header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, .96);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(8px);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 700; font-size: 20px; color: var(--navy);
}
.logo:hover { text-decoration: none; }
.logo-mark {
  width: 34px; height: 34px; border-radius: 10px;
  background: var(--blue-btn); color: #fff;
  display: inline-flex; align-items: center; justify-content: center; flex: none;
}
.logo-mark svg { width: 20px; height: 20px; }
.nav { display: flex; align-items: center; gap: 26px; }
.nav a { color: var(--ink); font-weight: 500; font-size: 15.5px; }
.nav a:hover { color: var(--blue); text-decoration: none; }
.nav a.active { color: var(--blue); }
.nav a.nav-cta {
  background: var(--blue-btn); color: #fff; padding: 9px 18px; border-radius: 10px;
}
.nav a.nav-cta:hover { background: var(--blue-btn-hover); }
.burger { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }
.burger svg { display: block; }

/* ---------- Главная: hero ---------- */
.hero {
  background: linear-gradient(180deg, var(--blue-soft) 0%, #fff 100%);
  padding: 74px 0 60px;
  text-align: center;
}
.badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: #fff; border: 1px solid var(--blue-border); color: var(--blue);
  font-weight: 600; font-size: 14px; padding: 7px 16px; border-radius: 999px;
  margin-bottom: 22px;
}
.badge svg { width: 16px; height: 16px; }
.hero h1 { font-size: clamp(32px, 5vw, 50px); letter-spacing: -.02em; margin-bottom: 18px; }
.hero h1 .accent { color: var(--blue); }
.lead { font-size: 19px; color: var(--gray); max-width: 680px; margin: 0 auto 30px; }
.hero-stats { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 26px; }
.stat-pill {
  background: #fff; border: 1px solid var(--border); border-radius: 999px;
  padding: 8px 18px; font-size: 14.5px; color: var(--gray);
}
.stat-pill b { color: var(--navy); }

/* Поиск (ARIA combobox) */
.search-hero { position: relative; max-width: 560px; margin: 0 auto; }
.search-hero > svg { position: absolute; left: 18px; top: 17px; width: 20px; height: 20px; color: var(--gray); pointer-events: none; }
.search-hero input, .catalog-search input {
  width: 100%; padding: 15px 18px 15px 48px;
  border: 1.5px solid var(--border); border-radius: 14px;
  font-size: 16.5px; font-family: inherit; color: var(--ink); background: #fff;
}
.search-hero input:focus, .catalog-search input:focus {
  border-color: var(--blue); outline: 3px solid var(--blue-soft);
}
.search-results {
  position: absolute; top: calc(100% + 6px); left: 0; right: 0; z-index: 60;
  background: #fff; border: 1px solid var(--border); border-radius: 14px;
  box-shadow: var(--shadow); display: none; overflow: hidden; text-align: left;
}
.search-results a {
  display: flex; justify-content: space-between; align-items: baseline; gap: 10px;
  padding: 12px 18px; color: var(--navy); font-weight: 600; font-size: 15.5px;
}
.search-results a span { color: var(--gray); font-weight: 400; font-size: 13px; }
.search-results a:hover, .search-results a[aria-selected="true"] { background: var(--blue-soft); text-decoration: none; }

/* ---------- Секции ---------- */
.section { padding: 58px 0; }
.section-soft { background: var(--bg-soft); }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 40px; }
.section-head h2 { font-size: clamp(26px, 3.4vw, 34px); margin-bottom: 10px; letter-spacing: -.01em; }
.section-head p { color: var(--gray); font-size: 17px; }

/* Карточки категорий */
.cats { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr)); gap: 18px; }
.cat-card {
  display: block; background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px; color: var(--ink);
  transition: border-color .15s, box-shadow .15s;
}
.cat-card:hover { border-color: var(--blue); box-shadow: var(--shadow); text-decoration: none; }
.cat-icon {
  width: 46px; height: 46px; border-radius: 12px;
  background: var(--blue-soft); color: var(--blue);
  display: flex; align-items: center; justify-content: center; margin-bottom: 16px;
}
.cat-icon svg { width: 24px; height: 24px; stroke: currentColor; }
.cat-card h3 { font-size: 19px; margin-bottom: 8px; }
.cat-card p { color: var(--gray); font-size: 14.5px; margin-bottom: 14px; }
.cat-count { color: var(--blue); font-weight: 600; font-size: 14.5px; }

/* Чипы */
.chips { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.chip {
  background: #fff; border: 1px solid var(--border); border-radius: 999px;
  padding: 9px 18px; color: var(--ink); font-size: 15px; font-weight: 500;
}
.chip:hover { border-color: var(--blue); color: var(--blue); text-decoration: none; }

/* Шаги */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; }
.step { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; }
.step-num {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--blue-btn); color: #fff; font-weight: 700; font-size: 18px;
  display: flex; align-items: center; justify-content: center; margin-bottom: 16px;
}
.step h3 { font-size: 18px; margin-bottom: 8px; }
.step p { color: var(--gray); font-size: 15px; }

/* Кнопки */
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  background: var(--blue-btn); color: #fff; font-weight: 600; font-size: 16px;
  padding: 13px 26px; border-radius: 12px; border: 1.5px solid var(--blue-btn);
  cursor: pointer;
}
.btn:hover { background: var(--blue-btn-hover); border-color: var(--blue-btn-hover); text-decoration: none; }
.btn svg { width: 18px; height: 18px; }
.btn-outline { background: #fff; color: var(--blue); border-color: var(--blue); }
.btn-outline:hover { background: var(--blue-soft); color: var(--blue); }

/* Предзапуск приложения (замена QR) */
.prelaunch {
  background: var(--navy); color: #dbe9f4; border-radius: 20px;
  padding: 40px; display: grid; grid-template-columns: 1.4fr 1fr; gap: 34px; align-items: center;
}
.prelaunch h2, .prelaunch h3 { color: #fff; }
.prelaunch p { color: #c6d9e8; margin-top: 10px; }
.prelaunch .soon {
  display: inline-block; background: rgba(255, 255, 255, .14); color: #fff;
  font-weight: 600; font-size: 14px; padding: 7px 16px; border-radius: 999px; margin-bottom: 16px;
}
.prelaunch-note {
  background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 14px; padding: 22px; color: #dbe9f4; font-size: 15px;
}
.prelaunch-note b { color: #fff; }
.app-cta {
  background: var(--navy); border-radius: 20px; color: #dbe9f4;
  padding: 40px; display: flex; justify-content: space-between; align-items: center; gap: 30px; flex-wrap: wrap;
}
.app-cta h2 { color: #fff; margin-bottom: 10px; }
.app-cta p { color: #c6d9e8; max-width: 560px; }
.app-cta .btn { flex: none; }

/* Проза */
.prose { max-width: 780px; margin: 0 auto; }
.prose h2 { font-size: 26px; margin: 34px 0 12px; }
.prose h3 { font-size: 19px; margin: 24px 0 8px; }
.prose p { margin-bottom: 14px; }
.prose ul, .prose ol { margin: 0 0 14px 22px; }
.prose li { margin-bottom: 7px; }

/* ---------- Хлебные крошки ---------- */
.breadcrumbs { margin: 18px 0 6px; font-size: 14px; }
.breadcrumbs ol { display: flex; flex-wrap: wrap; gap: 4px; list-style: none; }
.breadcrumbs li { display: flex; align-items: center; color: var(--gray); }
.breadcrumbs li + li::before { content: "/"; margin: 0 8px; color: var(--gray); }
.breadcrumbs li[aria-current="page"] { color: var(--navy); font-weight: 500; }

/* ---------- Шапка страницы ---------- */
.page-head {
  background: linear-gradient(180deg, var(--blue-soft), #fff);
  border-bottom: 1px solid var(--border);
  padding: 20px 0 30px;
}
.page-head h1 { font-size: clamp(28px, 4vw, 40px); letter-spacing: -.02em; margin: 8px 0 12px; }
.subtitle { font-size: 18px; color: var(--gray); max-width: 720px; }
.head-meta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.meta-pill {
  background: #fff; border: 1px solid var(--border); border-radius: 999px;
  padding: 7px 15px; font-size: 14px; color: var(--gray);
}
.meta-pill b { color: var(--navy); font-weight: 600; }
.meta-pill a { font-weight: 600; }
.date-line { margin-top: 16px; font-size: 13.5px; color: var(--gray); }
.date-line .sep { margin: 0 7px; }
.date-line .review-note { color: var(--gray); }

/* ---------- Статья ---------- */
.article-layout {
  display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: 44px;
  padding-top: 36px; padding-bottom: 60px;
}
.article-main h2 {
  font-size: 24px; margin: 38px 0 16px; display: flex; align-items: center; gap: 11px;
}
.article-main h2:first-child { margin-top: 0; }
.h-icon {
  width: 38px; height: 38px; flex: none; border-radius: 10px;
  background: var(--blue-soft); color: var(--blue);
  display: inline-flex; align-items: center; justify-content: center;
}
.h-icon svg { width: 20px; height: 20px; }
.article-main p { margin-bottom: 14px; }
.article-main > ul, .article-main > ol { margin: 0 0 14px 22px; }
.article-main li { margin-bottom: 7px; }

/* Короткий ответ */
.answer-box {
  background: var(--blue-soft); border: 1px solid var(--blue-border);
  border-radius: var(--radius); padding: 22px 26px; font-size: 17.5px;
  color: var(--navy); margin: 24px 0 6px;
}
.answer-box .label {
  display: block; font-size: 12.5px; font-weight: 700; letter-spacing: .08em;
  text-transform: uppercase; color: var(--blue); margin-bottom: 8px;
}

/* Таблица норм */
.norms-table {
  width: 100%; border-collapse: collapse; margin: 8px 0 14px;
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden;
}
.norms-table th, .norms-table td { padding: 12px 18px; text-align: left; border-bottom: 1px solid var(--border); }
.norms-table thead th { background: var(--navy); color: #fff; font-weight: 600; font-size: 14.5px; }
.norms-table tbody tr:last-child td { border-bottom: 0; }
.norms-table tbody tr:nth-child(even) { background: var(--bg-soft); }
.norm-note {
  background: var(--amber-bg); color: var(--amber);
  border-radius: 12px; padding: 14px 18px; font-size: 14.5px; margin-bottom: 8px;
}

/* Причины повышения/понижения */
.reason-card {
  border: 1px solid var(--border); border-left: 4px solid var(--blue);
  border-radius: 12px; padding: 15px 18px; margin-bottom: 12px; background: #fff;
}
.reason-card b { display: block; color: var(--navy); margin-bottom: 4px; }
.reason-card span { color: var(--gray); font-size: 15px; }

/* Подготовка / врач / пересдача */
.prep-box, .retest-box {
  background: var(--bg-soft); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px 22px; margin-bottom: 10px;
}
.doctor-box {
  display: flex; gap: 14px; align-items: flex-start;
  background: var(--green-bg); border-radius: var(--radius); padding: 18px 22px; color: var(--ink);
}
.doctor-box svg { width: 26px; height: 26px; color: var(--green); flex: none; margin-top: 2px; }
.doctor-box b { color: var(--navy); }

/* Факторы влияния */
.factor-chips { display: flex; flex-wrap: wrap; gap: 9px; margin-bottom: 8px; }
.factor-chip {
  background: #fff; border: 1px solid var(--border); border-radius: 999px;
  padding: 7px 15px; font-size: 14px; color: var(--ink);
}

/* Синонимы в бланках */
.synonyms { font-size: 15px; color: var(--gray); margin-bottom: 8px; }
.synonyms b { color: var(--navy); }
.synonym-tag {
  display: inline-block; background: var(--bg-soft); border: 1px solid var(--border);
  border-radius: 8px; padding: 3px 10px; margin: 3px 4px 3px 0; font-size: 13.5px; color: var(--ink);
}

/* Конвертер единиц */
.converter {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px 22px; margin-bottom: 10px;
}
.converter-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.converter input {
  width: 130px; padding: 10px 14px; border: 1.5px solid var(--border); border-radius: 10px;
  font-size: 16px; font-family: inherit; color: var(--ink);
}
.converter input:focus { border-color: var(--blue); outline: 3px solid var(--blue-soft); }
.converter .unit { font-weight: 600; color: var(--navy); }
.converter .eq { color: var(--gray); font-size: 18px; }
.converter-result { font-size: 18px; font-weight: 700; color: var(--blue); min-width: 150px; }
.converter-formula { margin-top: 10px; font-size: 13.5px; color: var(--gray); }

/* Источники */
.sources-box { font-size: 15px; color: var(--gray); }
.sources-box ol { margin-left: 20px; }
.sources-box li { margin-bottom: 6px; }

/* FAQ */
.faq-item { border: 1px solid var(--border); border-radius: 12px; margin-bottom: 10px; background: #fff; }
.faq-item summary {
  cursor: pointer; padding: 15px 20px; font-weight: 600; color: var(--navy);
  list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 12px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+"; font-size: 22px; color: var(--blue); font-weight: 400; flex: none;
}
.faq-item[open] summary::after { content: "−"; }
.faq-answer { padding: 0 20px 16px; color: var(--ink); font-size: 15.5px; }

/* CTA в статье */
.article-cta {
  display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap;
  background: var(--navy); border-radius: var(--radius); padding: 26px 30px; margin: 34px 0 6px;
}
.article-cta h3 { color: #fff; margin-bottom: 6px; font-size: 19px; }
.article-cta p { color: #c6d9e8; font-size: 15px; margin: 0; }

/* Связанные */
.related-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 12px; }
.related-card {
  border: 1px solid var(--border); border-radius: 12px; padding: 14px 16px;
  color: var(--navy); font-weight: 600; font-size: 15px; display: block;
}
.related-card:hover { border-color: var(--blue); text-decoration: none; }
.related-card small { display: block; color: var(--gray); font-weight: 400; font-size: 13px; margin-top: 3px; }

/* Сайдбар-оглавление */
.toc {
  position: sticky; top: 84px;
  border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; background: #fff;
}
.toc h4 { font-size: 13px; text-transform: uppercase; letter-spacing: .07em; color: var(--gray); margin-bottom: 12px; }
.toc a { display: block; padding: 6px 0; color: var(--ink); font-size: 14.5px; }
.toc a:hover { color: var(--blue); text-decoration: none; }

/* ---------- Каталог ---------- */
.catalog-toolbar { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; margin: 22px 0 8px; }
.catalog-search { position: relative; flex: 1 1 320px; }
.catalog-search svg { position: absolute; left: 16px; top: 15px; width: 19px; height: 19px; color: var(--gray); pointer-events: none; }
.catalog-search input { padding: 13px 16px 13px 44px; }
.filter-chips { display: flex; gap: 8px; flex-wrap: wrap; }
.filter-chip {
  background: #fff; border: 1.5px solid var(--border); border-radius: 999px;
  padding: 8px 16px; font-size: 14px; font-weight: 500; color: var(--ink); cursor: pointer; font-family: inherit;
}
.filter-chip:hover { border-color: var(--blue); color: var(--blue); }
.filter-chip.active { background: var(--blue-btn); border-color: var(--blue-btn); color: #fff; }
.catalog-group { margin: 30px 0 10px; }
.catalog-group > h2 { font-size: 22px; margin-bottom: 14px; }
.catalog-group > h2 small { color: var(--gray); font-weight: 500; font-size: 14.5px; margin-left: 8px; }
.analyses-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(300px, 100%), 1fr)); gap: 14px; }
.analysis-item {
  display: block; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px 20px; background: #fff; color: var(--ink);
  transition: border-color .15s, box-shadow .15s;
}
.analysis-item:hover { border-color: var(--blue); box-shadow: var(--shadow); text-decoration: none; }
.analysis-item h3 { font-size: 16.5px; display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.analysis-item h3 svg { width: 16px; height: 16px; color: var(--gray); flex: none; }
.analysis-item .latin { color: var(--gray); font-size: 13px; margin: 3px 0 8px; }
.analysis-item p { color: var(--gray); font-size: 14px; }

/* Включённые показатели (панели) */
.include-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 12px; margin-bottom: 8px; }
.include-card {
  display: flex; justify-content: space-between; align-items: center; gap: 10px;
  border: 1px solid var(--border); border-radius: 12px; padding: 13px 16px;
  color: var(--navy); font-weight: 600; font-size: 15px;
}
.include-card:hover { border-color: var(--blue); text-decoration: none; }
.include-card .u { color: var(--gray); font-weight: 400; font-size: 13px; }

/* Советы из жизни (гиды) */
.tips-box {
  background: var(--green-bg); border: 1px solid #bfe6cf; border-radius: var(--radius);
  padding: 24px 26px; margin: 34px 0;
}
.tips-box h2 { font-size: 21px; margin-bottom: 10px; }
.tips-box ul { margin: 14px 0 0; padding-left: 22px; }
.tips-box li { margin-bottom: 9px; color: var(--ink); font-size: 15.5px; }
.tips-note { color: var(--gray); font-size: 14px; }

/* Мягкий баннер приложения внутри статьи */
.app-inline {
  display: flex; gap: 12px; align-items: flex-start;
  background: var(--blue-soft); border: 1px solid #c2e0f2; border-radius: 12px;
  padding: 15px 18px; margin: 28px 0; color: var(--ink); font-size: 15px;
}
.app-inline svg { width: 20px; height: 20px; color: var(--blue); flex: none; margin-top: 1px; }
.app-inline a { font-weight: 600; white-space: nowrap; }
@media (max-width: 560px) { .app-inline a { white-space: normal; } }

/* ---------- Страница приложения ---------- */
.app-hero { display: grid; grid-template-columns: 1.2fr 1fr; gap: 44px; align-items: center; padding: 44px 0 20px; }
.app-hero h1 { font-size: clamp(30px, 4.4vw, 44px); letter-spacing: -.02em; margin: 14px 0 16px; }
.app-mock { display: flex; justify-content: center; }
.mock-screen {
  width: 300px; background: #fff; border: 1px solid var(--border); border-radius: 22px;
  box-shadow: var(--shadow); padding: 18px; display: flex; flex-direction: column; gap: 10px;
}
.mock-row {
  display: flex; align-items: center; gap: 10px; font-size: 13px;
  border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px;
}
.mock-dot { width: 9px; height: 9px; border-radius: 50%; flex: none; }
.mock-dot.g { background: #34b57a; } .mock-dot.a { background: #e0a03c; } .mock-dot.r { background: #d65b7e; }
.mock-name { flex: 1; color: var(--ink); font-weight: 500; }
.mock-val { font-weight: 700; font-size: 12px; padding: 3px 9px; border-radius: 999px; }
.mock-val.g { color: var(--green); background: var(--green-bg); }
.mock-val.a { color: var(--amber); background: var(--amber-bg); }
.mock-val.r { color: var(--red); background: var(--red-bg); }
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(280px, 100%), 1fr)); gap: 18px; }
.feature { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
.feature h3 { font-size: 17.5px; margin-bottom: 8px; }
.feature p { color: var(--gray); font-size: 14.5px; }
.privacy-note {
  display: flex; gap: 14px; align-items: flex-start;
  background: var(--blue-soft); border: 1px solid var(--blue-border);
  border-radius: var(--radius); padding: 20px 24px; font-size: 15px;
}
.privacy-note svg { width: 26px; height: 26px; color: var(--blue); flex: none; margin-top: 2px; }

/* ---------- 404 ---------- */
.nf { text-align: center; padding: 90px 22px; }
.nf h1 { font-size: 84px; color: var(--blue); margin-bottom: 12px; }

/* ---------- Подвал ---------- */
.footer { background: var(--navy); color: #a9c2d6; margin-top: 40px; }
.footer .container { padding-top: 48px; padding-bottom: 28px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 34px; }
.footer .logo { color: #fff; margin-bottom: 14px; }
.footer p { font-size: 14.5px; margin-bottom: 14px; }
.footer h4 { color: #fff; font-size: 15px; margin-bottom: 14px; }
.footer a { display: block; color: #a9c2d6; font-size: 14.5px; padding: 4px 0; }
.footer a:hover { color: #fff; text-decoration: none; }
.footer-disclaimer {
  border-top: 1px solid rgba(255, 255, 255, .14); padding-top: 14px;
  font-size: 13px; color: #8fa9bd;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .14); margin-top: 34px; padding-top: 20px;
  display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; font-size: 13.5px; color: #8fa9bd;
}

/* ---------- Адаптив ---------- */
@media (max-width: 900px) {
  .article-layout { grid-template-columns: 1fr; }
  .toc { position: static; order: -1; }
  .app-hero { grid-template-columns: 1fr; }
  .prelaunch { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  .burger { display: block; }
  .nav {
    display: none; position: absolute; top: 64px; left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--border);
    flex-direction: column; align-items: stretch; gap: 0; padding: 10px 22px 16px;
  }
  .nav.open { display: flex; }
  .nav a { padding: 12px 0; font-size: 16.5px; }
  .nav a.nav-cta { text-align: center; margin-top: 8px; }
  .hero { padding: 52px 0 44px; }
  .section { padding: 44px 0; }
  .prelaunch, .app-cta { padding: 28px 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .converter input { width: 110px; }
}


/* ---- Переключатель языка (ТЗ 27.08.2026) ---- */
.lang-switch { position: relative; margin-left: 14px; flex: none; }
.lang-switch summary {
  list-style: none; cursor: pointer; color: var(--ink); font-weight: 600; font-size: 14px;
  border: 1px solid var(--border); border-radius: 8px; padding: 6px 10px; user-select: none;
}
.lang-switch summary::-webkit-details-marker { display: none; }
.lang-switch summary::after { content: "\25BE"; margin-left: 6px; font-size: 11px; }
.lang-switch[open] summary { color: var(--blue); border-color: var(--blue); }
.lang-menu {
  position: absolute; right: 0; top: calc(100% + 6px); min-width: 170px;
  background: #fff; border: 1px solid var(--border); border-radius: 10px;
  box-shadow: 0 10px 30px rgba(18, 59, 92, .14); padding: 6px; z-index: 120;
}
.lang-item { display: block; padding: 8px 10px; border-radius: 6px; color: var(--ink); font-size: 14.5px; text-decoration: none; }
.lang-item:hover { background: #eaf6fd; color: var(--blue); text-decoration: none; }
.lang-current { font-weight: 700; color: var(--blue); }
.lang-all { border-top: 1px solid var(--border); margin-top: 4px; color: var(--gray); font-size: 13.5px; }

/* ---- Страница выбора языка и заглушки версий ---- */
.chooser {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(160deg, #eaf6fd 0%, #ffffff 60%); padding: 40px 16px;
}
.chooser-card {
  background: #fff; border: 1px solid var(--border); border-radius: 18px;
  box-shadow: 0 18px 50px rgba(18, 59, 92, .12);
  padding: 40px 36px; max-width: 520px; width: 100%; text-align: center;
}
.chooser-card h1 { color: var(--navy); margin-bottom: 6px; font-size: 30px; }
.chooser-sub { color: var(--gray); margin-bottom: 24px; }
.chooser-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; text-align: left; }
.chooser-list a {
  display: flex; flex-direction: column; gap: 2px; padding: 12px 16px;
  border: 1px solid var(--border); border-radius: 10px; text-decoration: none; color: var(--ink);
}
.chooser-list a:hover { border-color: var(--blue); background: #f4fbff; }
.chooser-list b { color: var(--navy); font-size: 16px; }
.chooser-list span { color: var(--gray); font-size: 13.5px; }
@media (max-width: 900px) {
  .lang-switch { margin: 4px 0 0; }
  .lang-menu { position: static; box-shadow: none; margin-top: 6px; }
}


/* ---- Неготовые языки: неактивные пункты (Правки 27.08.2026) ---- */
.lang-soon { color: var(--gray); cursor: default; }
.lang-soon i { font-style: normal; font-size: 12.5px; color: var(--gray); white-space: nowrap; }
.chooser-soon-head { color: var(--gray); font-size: 13px; text-transform: uppercase; letter-spacing: .06em; margin: 22px 0 10px; }
.chooser-soon a { opacity: .62; }
.chooser-soon a:hover { border-color: var(--border); background: #fff; opacity: .85; }
.chooser-soon b { color: var(--gray); }

/* cookie consent bar (Яндекс.Метрика, гибридный режим) */
.cookie-bar{position:fixed;left:0;right:0;bottom:0;z-index:1000;background:#123b5c;color:#fff;padding:12px 16px;box-shadow:0 -2px 12px rgba(0,0,0,.25)}
.cookie-bar-inner{max-width:1080px;margin:0 auto;display:flex;gap:14px;align-items:center;flex-wrap:wrap}
.cookie-bar-text{flex:1;min-width:240px;font-size:14px;line-height:1.45}
.cookie-bar-text a{color:#cfe3f5;text-decoration:underline}
.cookie-bar-actions{display:flex;gap:8px;flex-shrink:0}
.cookie-bar-ok{background:#fff;color:#123b5c;border:0;border-radius:8px;padding:9px 20px;font-weight:600;font-size:14px;cursor:pointer}
.cookie-bar-no{background:transparent;color:#cfe3f5;border:1px solid #cfe3f5;border-radius:8px;padding:9px 20px;font-size:14px;cursor:pointer}
@media (max-width:560px){.cookie-bar-actions{width:100%}.cookie-bar-ok,.cookie-bar-no{flex:1}}

/* ---- «Проверьте своё значение» (31.08.2026) ---- */
.value-checker {
  margin: 1.75rem 0;
  padding: 1.25rem 1.5rem 1rem;
  background: var(--bg-soft);
  border: 1px solid var(--blue-border);
  border-radius: var(--radius);
}
.value-checker h2 { margin-top: 0; }
.vc-lead { margin: 0 0 1rem; color: var(--gray); }
.vc-controls {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  align-items: stretch;
}
.vc-select, .vc-input {
  padding: .6rem .8rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  font: inherit;
  color: var(--ink);
  background: #fff;
}
.vc-select { flex: 1 1 220px; min-width: 0; }
.vc-input { flex: 1 1 160px; min-width: 0; }
.vc-btn {
  flex: 0 0 auto;
  padding: .6rem 1.4rem;
  border: 0;
  border-radius: 10px;
  background: var(--blue-btn);
  color: #fff;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}
.vc-btn:hover { background: var(--blue-btn-hover); }
.vc-result {
  margin-top: 1rem;
  padding: .8rem 1rem;
  border-radius: 10px;
  line-height: 1.5;
}
.vc-result b { display: inline; }
.vc-result a { display: inline-block; margin-top: .35rem; font-weight: 600; }
.vc-ok { background: var(--green-bg); color: var(--green); }
.vc-ok a { color: var(--green); }
.vc-low, .vc-high { background: var(--amber-bg); color: var(--amber); }
.vc-warn { background: var(--amber-bg); color: var(--amber); }
.vc-warn a { color: var(--amber); }
.vc-low a, .vc-high a { color: var(--amber); }
.vc-invalid { background: var(--red-bg); color: var(--red); }
.vc-note { margin: .9rem 0 .2rem; font-size: .85rem; color: var(--gray); }
@media (max-width: 560px) {
  .vc-btn { width: 100%; }
}

/* ---- Посадочная «Расшифровка анализов» (31.08.2026) ---- */
.result-finder {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin-top: 1.2rem;
  max-width: 640px;
}
.rf-select {
  flex: 1 1 280px;
  min-width: 0;
  padding: .7rem .9rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  font: inherit;
  color: var(--ink);
  background: #fff;
}
.rf-btn {
  flex: 0 0 auto;
  padding: .7rem 1.5rem;
  border: 0;
  border-radius: 10px;
  background: var(--blue-btn);
  color: #fff;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}
.rf-btn:hover { background: var(--blue-btn-hover); }
.rf-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 14px;
  margin-bottom: 1.5rem;
}
.rf-step {
  display: flex;
  gap: 12px;
  padding: 1rem 1.1rem;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.rf-step p { margin: .3rem 0 0; color: var(--gray); font-size: .95rem; }
.rf-num {
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--blue-btn);
  color: #fff;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}


/* ============================================================
   Продуктовый слой (ТЗ 13.09.2026): hero, демо, шаги, экраны,
   магазины. Токены — из базовой системы, контрасты сохранены.
   ============================================================ */

/* --- Продуктовый hero --- */
.hero-product { padding: 64px 0 40px; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(280px, .85fr); gap: 48px; align-items: center; }
.hero-main h1 { font-size: clamp(30px, 4.6vw, 52px); line-height: 1.08; letter-spacing: -0.02em; color: var(--navy); margin-bottom: 18px; }
.hero-main .lead { font-size: clamp(17px, 1.6vw, 20px); color: var(--ink); max-width: 560px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 26px; }
.hero-note { margin-top: 16px; color: var(--gray); font-size: 14.5px; }
.btn-lg { padding: 14px 26px; font-size: 17px; }

/* --- Рамка телефона для реальных экранов --- */
.phone-frame { max-width: 300px; margin: 0 auto; }
.phone-frame img {
  width: 100%; height: auto; display: block; border-radius: 28px;
  border: 1px solid var(--border); box-shadow: 0 18px 50px rgba(18, 59, 92, .16);
  background: var(--bg-soft);
}
.phone-frame figcaption { text-align: center; color: var(--gray); font-size: 14px; margin-top: 12px; }

/* --- Учебное демо: бланк ↔ ответ приложения --- */
.demo-note {
  display: inline-block; background: var(--blue-soft); border: 1px solid var(--blue-border);
  color: var(--navy); border-radius: 10px; padding: 10px 16px; font-size: 14.5px; margin-bottom: 18px;
}
.demo-wrap { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: 22px; align-items: start; }
.demo-blank { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; background: #fff; box-shadow: var(--shadow); }
.demo-blank-h {
  padding: 12px 16px; font-weight: 600; color: var(--navy); font-size: 14.5px;
  background: var(--bg-soft); border-bottom: 1px solid var(--border);
}
.demo-row {
  display: grid; grid-template-columns: minmax(0, 1.4fr) auto auto auto; gap: 10px; align-items: baseline;
  width: 100%; text-align: left; padding: 12px 16px; border: 0; border-bottom: 1px solid var(--border);
  background: #fff; font: inherit; color: var(--ink); cursor: pointer;
}
.demo-row:last-child { border-bottom: 0; }
.demo-row:hover { background: var(--bg-soft); }
.demo-row:focus-visible { outline: 2px solid var(--blue); outline-offset: -2px; }
.demo-row.on { background: var(--blue-soft); box-shadow: inset 3px 0 0 var(--blue); }
.demo-nm { font-weight: 500; }
.demo-val { font-variant-numeric: tabular-nums; font-weight: 600; color: var(--navy); white-space: nowrap; }
.demo-ref { color: var(--gray); font-size: 13.5px; white-space: nowrap; }
.demo-flag { font-size: 12.5px; font-weight: 600; border-radius: 999px; padding: 3px 10px; white-space: nowrap; }
.demo-flag.f-ok { color: var(--green); background: var(--green-bg); }
.demo-flag.f-low, .demo-flag.f-high { color: var(--amber); background: var(--amber-bg); }
.demo-panel { border: 1px solid var(--border); border-radius: var(--radius); background: #fff; box-shadow: var(--shadow); min-height: 220px; }
.demo-panel-h {
  padding: 12px 16px; font-weight: 600; color: var(--navy); font-size: 14.5px;
  background: var(--bg-soft); border-bottom: 1px solid var(--border); border-radius: var(--radius) var(--radius) 0 0;
}
.demo-card { display: none; padding: 18px 20px; }
.demo-card.on { display: block; }
.demo-card b { color: var(--navy); display: block; margin-bottom: 8px; }
.demo-summary { margin-top: 22px; border-left: 3px solid var(--blue); padding: 4px 0 4px 20px; max-width: 860px; }
.demo-summary h3 { color: var(--navy); margin-bottom: 8px; }
.demo-summary ul { margin: 8px 0 12px 20px; }
.demo-summary b { color: var(--navy); }
.demo-limits { color: var(--gray); font-size: 14.5px; }
.anchor-section { scroll-margin-top: 90px; }

/* --- Шаги (редакционная нумерация) --- */
.how-steps { list-style: none; display: grid; gap: 0; max-width: 860px; }
.how-step { display: flex; gap: 22px; padding: 20px 0; border-top: 1px solid var(--border); }
.how-step:last-child { border-bottom: 1px solid var(--border); }
.how-num { font-weight: 700; font-size: 15px; color: var(--blue); font-variant-numeric: tabular-nums; padding-top: 3px; }
.how-step b { color: var(--navy); display: block; margin-bottom: 4px; font-size: 17.5px; }
.how-step p { color: var(--ink); }

/* --- Две колонки текста --- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.split h2 { color: var(--navy); font-size: 24px; margin-bottom: 12px; }
.split p + p { margin-top: 10px; }

/* --- Полоса экранов приложения --- */
.screens-strip {
  display: grid; grid-auto-flow: column; grid-auto-columns: minmax(230px, 1fr);
  gap: 18px; overflow-x: auto; padding: 4px 4px 16px; scroll-snap-type: x mandatory;
}
.screen-card { scroll-snap-align: start; }
.screen-card img {
  width: 100%; height: auto; display: block; border-radius: 22px;
  border: 1px solid var(--border); box-shadow: var(--shadow); background: var(--bg-soft);
}
.screen-card figcaption { padding: 10px 4px 0; font-size: 14.5px; color: var(--ink); }
.screen-card figcaption b { display: block; color: var(--navy); }

/* --- Магазины: кнопки и честный предзапуск --- */
.store-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 22px; }
.store-btn {
  display: inline-flex; flex-direction: column; gap: 2px; padding: 12px 22px;
  border: 1.5px solid var(--navy); border-radius: 12px; text-decoration: none;
  color: var(--navy); transition: background .2s, color .2s;
}
.store-btn:hover { background: var(--navy); color: #fff; }
.store-btn b { font-size: 17px; }
.store-btn span { font-size: 13.5px; opacity: .85; }
.store-soon {
  margin-top: 22px; border: 1px solid var(--blue-border); background: var(--blue-soft);
  border-radius: var(--radius); padding: 16px 20px; color: var(--ink); max-width: 640px;
}
.store-soon b { color: var(--navy); }
.store-soon p { margin-top: 6px; font-size: 15px; }

/* --- Справочник на главной --- */
.search-ref { margin-bottom: 26px; }
.chips-block { margin-top: 28px; }
.chips-block h3 { color: var(--navy); font-size: 17px; margin-bottom: 12px; }
.center-row { text-align: center; margin-top: 30px; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.ref-action { margin: 36px 0 8px; border-top: 1px solid var(--border); padding-top: 28px; }

/* --- Кнопка-ссылка в подвале --- */
.footer-btn {
  display: block; background: none; border: 0; padding: 0; margin-top: 8px;
  font: inherit; color: inherit; opacity: .8; cursor: pointer; text-decoration: underline;
  text-align: left;
}
.footer-btn:hover { opacity: 1; }

@media (max-width: 960px) {
  .hero-grid, .demo-wrap, .split { grid-template-columns: 1fr; }
  /* текст и действие — первыми (ТЗ разд. 5: без прокрутки понятен продукт) */
  .phone-frame { max-width: 210px; }
}
@media (max-width: 560px) {
  .demo-row { grid-template-columns: minmax(0, 1fr) auto; row-gap: 4px; }
  .demo-ref { grid-column: 1 / -1; }
  .hero-product { padding: 40px 0 28px; }
}

/* Подсветка рекомендуемого языка на корневом выборе (без авторедиректа) */
.chooser-list a.suggested {
  outline: 2px solid var(--blue); outline-offset: 2px; border-radius: 10px;
}
.chooser-list a.suggested::after {
  content: "— рекомендуется · suggested";
  display: block; font-size: 13px; color: var(--gray);
}

/* Прокрутка широких таблиц внутри контейнера (ТЗ разд. 17) */
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }