/* ============================================================
   Дизайн-система: rus-cod (концепт)
   Строгий официальный + современный минимализм
   Палитра: белый / чёрный + государственный синий
   ============================================================ */

:root {
  /* Neutrals */
  --bg: #ffffff;
  --bg-soft: #f7f7f8;
  --bg-hover: #f2f2f4;

  --border: #e6e6e9;
  --border-strong: #d0d0d5;
  --border-hover: #b8b8c0;

  --ink: #0a0a0a;
  --ink-2: #3a3a42;
  --ink-3: #5c5c66;
  --ink-4: #9a9aa3;
  --ink-5: #c4c4cc;

  /* Accent (government blue) */
  --accent: #0047ff;
  --accent-hover: #0038cc;
  --accent-soft: #eef2ff;
  --accent-soft-strong: #dbe4ff;
  --accent-ink: #0031a6;

  /* Semantic */
  --success: #067c3f;
  --success-soft: #e6f4ec;
  --warning: #a15c00;
  --warning-soft: #fdf1e0;

  /* Radius */
  --r-1: 4px;
  --r-2: 6px;
  --r-3: 8px;
  --r-4: 12px;
  --r-5: 16px;

  /* Shadows — очень сдержанные */
  --shadow-1: 0 1px 2px rgba(10,10,10,0.04);
  --shadow-2: 0 4px 12px rgba(10,10,10,0.06);
  --shadow-focus: 0 0 0 3px rgba(0,71,255,0.18);

  /* Layout */
  --page-max: 1200px;
  --page-max-narrow: 960px;

  /* Type */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'Inter', ui-monospace, 'SF Mono', 'Cascadia Mono', monospace;
}

/* Reset ---------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11';
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
img, svg { display: block; max-width: 100%; }

/* Layout helpers ------------------------------------------ */
.container {
  max-width: var(--page-max);
  margin: 0 auto;
  padding: 0 32px;
}
.container-narrow {
  max-width: var(--page-max-narrow);
  margin: 0 auto;
  padding: 0 32px;
}

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.85);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--border);
}
.site-header__inner {
  height: 64px;
  display: flex;
  align-items: center;
  gap: 32px;
  max-width: var(--page-max);
  margin: 0 auto;
  padding: 0 32px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 15px;
  letter-spacing: -0.01em;
  color: var(--ink);
  flex-shrink: 0;
}
.brand__mark {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: var(--ink);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 13px;
  letter-spacing: -0.02em;
}
.brand__name { display: flex; align-items: baseline; gap: 6px; }
.brand__sub {
  font-weight: 500;
  color: var(--ink-3);
  font-size: 13px;
}

.header-search {
  flex: 1;
  max-width: 520px;
  position: relative;
}
.header-search input {
  width: 100%;
  height: 38px;
  padding: 0 14px 0 40px;
  border: 1px solid var(--border);
  border-radius: var(--r-2);
  background: var(--bg-soft);
  font: inherit;
  font-size: 14px;
  color: var(--ink);
  outline: none;
  transition: border-color .12s, background .12s, box-shadow .12s;
}
.header-search input::placeholder { color: var(--ink-4); }
.header-search input:hover { border-color: var(--border-strong); }
.header-search input:focus {
  background: #fff;
  border-color: var(--accent);
  box-shadow: var(--shadow-focus);
}
.header-search__icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--ink-4);
  pointer-events: none;
}
.header-search__kbd {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 11px;
  color: var(--ink-4);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px 6px;
  background: #fff;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}
.header-nav a {
  padding: 8px 12px;
  border-radius: var(--r-2);
  font-size: 14px;
  color: var(--ink-3);
  transition: background .12s, color .12s;
}
.header-nav a:hover { background: var(--bg-soft); color: var(--ink); }
.header-nav a.is-active { color: var(--ink); font-weight: 500; }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 48px 0 40px;
  margin-top: 96px;
  background: var(--bg-soft);
}
.site-footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
  max-width: var(--page-max);
  margin: 0 auto;
  padding: 0 32px;
}
.site-footer h4 {
  font-size: 12px;
  font-weight: 600;
  color: var(--ink-3);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 0 0 16px;
}
.site-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.site-footer a { color: var(--ink-2); font-size: 14px; }
.site-footer a:hover { color: var(--accent); }
.site-footer__brand p {
  font-size: 13px;
  color: var(--ink-3);
  line-height: 1.55;
  margin: 12px 0 0;
  max-width: 320px;
}
.site-footer__meta {
  max-width: var(--page-max);
  margin: 40px auto 0;
  padding: 24px 32px 0;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--ink-4);
}

/* ============================================================
   HERO (главная)
   ============================================================ */
.hero {
  padding: 96px 0 48px;
  text-align: center;
}
.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 12px 5px 8px;
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 12px;
  color: var(--ink-3);
  background: #fff;
  margin-bottom: 24px;
}
.hero__eyebrow-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 3px var(--success-soft);
}
.hero__title {
  font-size: 56px;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin: 0 0 20px;
  color: var(--ink);
  text-wrap: balance;
}
.hero__title em {
  font-style: normal;
  color: var(--accent);
}
.hero__lede {
  max-width: 620px;
  margin: 0 auto 40px;
  font-size: 17px;
  line-height: 1.55;
  color: var(--ink-3);
  text-wrap: pretty;
}

.hero-search {
  max-width: 720px;
  margin: 0 auto;
  position: relative;
}
.hero-search__field {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 8px 8px 20px;
  height: 64px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow-2);
  transition: border-color .12s, box-shadow .12s;
}
.hero-search__field:focus-within {
  border-color: var(--accent);
  box-shadow: var(--shadow-2), var(--shadow-focus);
}
.hero-search__icon { color: var(--ink-4); flex-shrink: 0; }
.hero-search__input {
  flex: 1;
  border: 0;
  outline: 0;
  background: transparent;
  font: inherit;
  font-size: 17px;
  color: var(--ink);
}
.hero-search__input::placeholder { color: var(--ink-4); }
.hero-search__submit {
  height: 48px;
  padding: 0 22px;
  background: var(--ink);
  color: #fff;
  border: 0;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: background .12s;
}
.hero-search__submit:hover { background: #222; }

.hero-search__scopes {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 20px;
}
.hero-search__scope {
  padding: 6px 12px;
  font-size: 13px;
  color: var(--ink-3);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 100px;
  transition: all .12s;
}
.hero-search__scope:hover { border-color: var(--border-hover); color: var(--ink); }
.hero-search__scope.is-active {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
}

/* ============================================================
   CLASSIFIER GRID (главная)
   ============================================================ */
.section {
  padding: 64px 0;
}
.section-header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 32px;
  max-width: var(--page-max);
  padding: 0 32px;
  margin-left: auto;
  margin-right: auto;
}
.section-title {
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--ink);
}
.section-lede {
  font-size: 14px;
  color: var(--ink-3);
  margin: 6px 0 0;
}
.section-link {
  font-size: 14px;
  color: var(--ink-3);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.section-link:hover { color: var(--accent); }

.classifier-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--r-4);
  overflow: hidden;
  max-width: var(--page-max);
  margin: 0 auto;
}
.classifier-card {
  padding: 28px;
  background: #fff;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: background .15s;
  position: relative;
  min-height: 220px;
}
.classifier-card:hover { background: var(--bg-soft); }
.classifier-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.classifier-card__code {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.classifier-card__count {
  font-size: 12px;
  color: var(--ink-3);
  padding: 4px 8px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-variant-numeric: tabular-nums;
}
.classifier-card:hover .classifier-card__count {
  background: #fff;
}
.classifier-card__desc {
  font-size: 13px;
  color: var(--ink-3);
  line-height: 1.5;
  flex: 1;
}
.classifier-card__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 12px;
  border-top: 1px dashed var(--border);
}
.classifier-card__cta {
  font-size: 13px;
  color: var(--accent);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.classifier-card__cta svg { transition: transform .15s; }
.classifier-card:hover .classifier-card__cta svg { transform: translateX(2px); }
.classifier-card__status {
  font-size: 11px;
  color: var(--ink-4);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Homepage bottom info strip */
.info-strip {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-soft);
  padding: 32px 0;
}
.info-strip__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  max-width: var(--page-max);
  margin: 0 auto;
  padding: 0 32px;
}
.info-strip__item h5 {
  font-size: 12px;
  color: var(--ink-3);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 0 0 6px;
  font-weight: 600;
}
.info-strip__item p {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}
.info-strip__item small {
  font-size: 12px;
  color: var(--ink-3);
  display: block;
  margin-top: 4px;
}

/* ============================================================
   BREADCRUMBS
   ============================================================ */
.breadcrumbs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  padding: 20px 0;
  font-size: 13px;
  color: var(--ink-4);
}
.breadcrumbs a { color: var(--ink-3); }
.breadcrumbs a:hover { color: var(--accent); }
.breadcrumbs__sep { color: var(--ink-5); }
.breadcrumbs__current { color: var(--ink); font-weight: 500; }
.breadcrumbs__code {
  font-variant-numeric: tabular-nums;
  padding: 1px 6px;
  background: var(--bg-soft);
  border-radius: 4px;
  font-size: 12px;
  color: var(--ink-2);
  margin-right: 4px;
}

/* ============================================================
   PAGE HEAD (общий для всех страниц классификаторов)
   ============================================================ */
.page-head {
  padding: 12px 0 40px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 40px;
}
.page-head__meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--ink-3);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
}
.page-head__meta .dot {
  width: 4px; height: 4px; border-radius: 50%;
  background: var(--ink-5);
}
.page-head__title {
  font-size: 40px;
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.1;
  margin: 0 0 12px;
  color: var(--ink);
  text-wrap: balance;
}
.page-head__lede {
  font-size: 16px;
  color: var(--ink-3);
  line-height: 1.55;
  max-width: 720px;
  margin: 0;
}
.page-head__badges {
  display: flex;
  gap: 8px;
  margin-top: 20px;
  flex-wrap: wrap;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 500;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--ink-2);
}
.badge--accent { background: var(--accent-soft); color: var(--accent-ink); border-color: var(--accent-soft-strong); }
.badge--success { background: var(--success-soft); color: var(--success); border-color: transparent; }
.badge--warning { background: var(--warning-soft); color: var(--warning); border-color: transparent; }
.badge--ghost { background: transparent; color: var(--ink-3); }
.badge__dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

/* ============================================================
   BIG CODE (заголовок с большим кодом раздела / класса)
   ============================================================ */
.code-hero {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 32px;
  align-items: start;
  padding: 12px 0 40px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 40px;
}
.code-hero--inline {
  grid-template-columns: 1fr auto;
}
.code-hero__mark {
  width: 100px;
  height: 100px;
  border: 1px solid var(--border);
  border-radius: var(--r-4);
  background: var(--bg-soft);
  display: grid;
  place-items: center;
  font-size: 40px;
  font-weight: 700;
  letter-spacing: -0.04em;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
}
.code-hero__mark--letter { font-size: 56px; }
.code-hero__mark::after {
  content: attr(data-kind);
  position: absolute;
  top: 6px;
  left: 8px;
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--ink-4);
  text-transform: uppercase;
}
.code-hero__body { min-width: 0; }
.code-hero__meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--ink-3);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
}
.code-hero__title {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0 0 12px;
  color: var(--ink);
  text-wrap: balance;
}
.code-hero__desc {
  font-size: 15px;
  color: var(--ink-3);
  line-height: 1.6;
  max-width: 640px;
  margin: 0;
}
.code-hero__aside {
  display: grid;
  gap: 8px;
  min-width: 200px;
}

/* ============================================================
   ITEM LIST (список кодов — карточки / строки)
   ============================================================ */
.item-list {
  border: 1px solid var(--border);
  border-radius: var(--r-4);
  overflow: hidden;
  background: #fff;
}
.item-list__head {
  display: grid;
  grid-template-columns: minmax(96px, max-content) 1fr 100px 40px;
  gap: 20px;
  padding: 12px 20px;
  background: var(--bg-soft);
  border-bottom: 1px solid var(--border);
  font-size: 11px;
  font-weight: 600;
  color: var(--ink-3);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.item-row {
  display: grid;
  grid-template-columns: minmax(96px, max-content) 1fr 100px 40px;
  gap: 20px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  align-items: center;
  transition: background .12s;
  color: var(--ink);
}
.item-row:last-child { border-bottom: 0; }
.item-row:hover { background: var(--accent-soft); }
.item-row:hover .item-row__code { color: var(--accent-ink); }
.item-row:hover .item-row__chev { color: var(--accent); transform: translateX(2px); }
.item-row__code {
  font-variant-numeric: tabular-nums;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: -0.01em;
  color: var(--ink);
  white-space: nowrap;
  min-width: 90px;
}
.item-row__code--letter {
  font-size: 20px;
  font-weight: 700;
}
.item-row__title {
  font-size: 14px;
  line-height: 1.45;
  color: var(--ink);
  min-width: 0;
}
.item-row__title small {
  display: block;
  color: var(--ink-3);
  font-size: 12px;
  margin-top: 2px;
}
.item-row__meta {
  font-size: 12px;
  color: var(--ink-3);
  font-variant-numeric: tabular-nums;
  text-align: right;
  white-space: nowrap;
}
.item-row__chev {
  color: var(--ink-4);
  transition: transform .15s, color .15s;
  justify-self: end;
}

/* Compact list — на страницах разделов */
.item-list--3col .item-list__head,
.item-list--3col .item-row {
  grid-template-columns: minmax(72px, max-content) 1fr 40px;
  gap: 20px;
}

/* Section header внутри list */
.list-group-header {
  padding: 20px 20px 12px;
  font-size: 11px;
  font-weight: 600;
  color: var(--ink-3);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: #fff;
  border-bottom: 1px solid var(--border);
}

/* ============================================================
   FINAL CODE PAGE
   ============================================================ */
.code-card {
  border: 1px solid var(--border);
  border-radius: var(--r-4);
  padding: 32px;
  background: #fff;
  display: grid;
  gap: 24px;
}
.code-card__top {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}
.code-card__big {
  font-size: 64px;
  font-weight: 700;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  line-height: 1;
  color: var(--ink);
}
.code-card__meta {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}

.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 44px;
  padding: 0 18px;
  background: var(--accent);
  color: #fff;
  border: 0;
  border-radius: 10px;
  font: inherit;
  font-size: 14px;
  font-weight: 500;
  transition: background .12s;
}
.copy-btn:hover { background: var(--accent-hover); }
.copy-btn.is-copied { background: var(--success); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 44px;
  padding: 0 18px;
  border-radius: 10px;
  font: inherit;
  font-size: 14px;
  font-weight: 500;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--ink);
  transition: all .12s;
}
.btn:hover { border-color: var(--border-hover); background: var(--bg-soft); }
.btn--ghost { border-color: transparent; }
.btn--sm { height: 34px; padding: 0 12px; font-size: 13px; border-radius: 8px; }

.def-list {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 16px 32px;
  font-size: 14px;
}
.def-list dt { color: var(--ink-3); font-weight: 500; }
.def-list dd { margin: 0; color: var(--ink); }

/* Родительская иерархия — путь наверх */
.parent-path {
  border: 1px solid var(--border);
  border-radius: var(--r-4);
  background: #fff;
  overflow: hidden;
}
.parent-path__head {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-soft);
  font-size: 11px;
  font-weight: 600;
  color: var(--ink-3);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.parent-path__step {
  display: grid;
  grid-template-columns: 24px minmax(80px, auto) 1fr auto;
  gap: 16px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  align-items: center;
  position: relative;
  transition: background .12s;
  color: var(--ink);
}
.parent-path__step:last-child { border-bottom: 0; }
.parent-path__step:hover { background: var(--bg-soft); }
.parent-path__step.is-current { background: var(--accent-soft); }
.parent-path__step.is-current:hover { background: var(--accent-soft); }

.parent-path__level {
  font-size: 11px;
  color: var(--ink-4);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  text-align: center;
}
.parent-path__code {
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  font-size: 14px;
  color: var(--ink);
  white-space: nowrap;
}
.parent-path__step.is-current .parent-path__code { color: var(--accent-ink); }
.parent-path__title {
  font-size: 13px;
  color: var(--ink-2);
  line-height: 1.4;
}
.parent-path__badge {
  font-size: 11px;
  color: var(--accent);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  white-space: nowrap;
  padding-left: 8px;
}
.parent-path__chev {
  color: var(--ink-4);
  justify-self: end;
}

/* Связанные / похожие коды */
.related-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.related-card {
  display: block;
  padding: 16px 18px;
  border: 1px solid var(--border);
  border-radius: var(--r-3);
  background: #fff;
  transition: all .12s;
  color: var(--ink);
}
.related-card:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}
.related-card__code {
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  font-size: 14px;
  color: var(--ink);
  margin-bottom: 4px;
}
.related-card:hover .related-card__code { color: var(--accent-ink); }
.related-card__title {
  font-size: 13px;
  color: var(--ink-3);
  line-height: 1.45;
}

/* Two-column layout on final code page */
.two-col {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 32px;
  align-items: start;
}

.side-card {
  border: 1px solid var(--border);
  border-radius: var(--r-4);
  background: #fff;
  overflow: hidden;
}
.side-card__head {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  font-size: 11px;
  font-weight: 600;
  color: var(--ink-3);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: var(--bg-soft);
}
.side-card__body { padding: 16px 18px; }
.side-card__list { list-style: none; margin: 0; padding: 0; display: grid; gap: 4px; }
.side-card__list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 6px;
  font-size: 13px;
  color: var(--ink-2);
  transition: background .12s, color .12s;
}
.side-card__list a:hover { background: var(--accent-soft); color: var(--accent-ink); }
.side-card__list .code {
  font-variant-numeric: tabular-nums;
  font-weight: 500;
  font-size: 12px;
  color: var(--ink-3);
}

/* ============================================================
   H2 within page
   ============================================================ */
.h2 {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--ink);
  margin: 0 0 16px;
  display: flex;
  align-items: baseline;
  gap: 12px;
}
.h2__count {
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-4);
  font-variant-numeric: tabular-nums;
}

.stack-24 > * + * { margin-top: 24px; }
.stack-32 > * + * { margin-top: 32px; }
.stack-48 > * + * { margin-top: 48px; }

/* Filter bar */
.filter-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--r-3);
  background: var(--bg-soft);
}
.filter-bar__search {
  position: relative;
  flex: 1;
  max-width: 320px;
}
.filter-bar__search input {
  width: 100%;
  height: 32px;
  padding: 0 12px 0 32px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
  font: inherit;
  font-size: 13px;
  outline: none;
  transition: border-color .12s, box-shadow .12s;
}
.filter-bar__search input:focus { border-color: var(--accent); box-shadow: var(--shadow-focus); }
.filter-bar__search svg {
  position: absolute;
  left: 10px; top: 50%;
  transform: translateY(-50%);
  color: var(--ink-4);
}
.filter-bar__meta {
  margin-left: auto;
  font-size: 12px;
  color: var(--ink-3);
  font-variant-numeric: tabular-nums;
}

/* Responsive ---------------------------------------------- */
@media (max-width: 900px) {
  .container, .container-narrow { padding: 0 20px; }
  .site-header__inner { padding: 0 20px; gap: 16px; }
  .header-search { max-width: none; }
  .header-nav { display: none; }
  .hero { padding: 56px 0 32px; }
  .hero__title { font-size: 36px; }
  .classifier-grid { grid-template-columns: 1fr; }
  .info-strip__grid { grid-template-columns: repeat(2, 1fr); }
  .site-footer__grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .code-hero { grid-template-columns: 1fr; gap: 20px; }
  .code-hero--inline { grid-template-columns: 1fr; }
  .code-hero__mark { width: 80px; height: 80px; font-size: 32px; }
  .code-hero__mark--letter { font-size: 44px; }
  .page-head__title { font-size: 28px; }
  .item-list__head { display: none; }
  .item-row {
    grid-template-columns: 1fr auto;
    gap: 4px 12px;
    padding: 12px 16px;
  }
  .item-row__code {
    grid-column: 1;
    font-size: 14px;
  }
  .item-row__title {
    grid-column: 1;
  }
  .item-row__meta { display: none; }
  .item-row__chev {
    grid-column: 2;
    grid-row: 1 / span 2;
    align-self: center;
  }
  .parent-path__step {
    grid-template-columns: 20px minmax(60px, auto) 1fr auto;
    gap: 10px;
    padding: 12px 14px;
  }
  .two-col { grid-template-columns: 1fr; }
  .code-card__big { font-size: 44px; }
  .code-card__top { flex-direction: column; }
  .related-grid { grid-template-columns: 1fr; }
  .def-list { grid-template-columns: 1fr; gap: 4px 0; }
  .def-list dt { margin-top: 12px; }
  .section-header { flex-direction: column; align-items: flex-start; }
}


/* ============================================================
   ACCESSIBILITY & LIVE SEARCH ADDITIONS
   ============================================================ */
.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  background: var(--ink);
  color: #fff;
  padding: 8px 16px;
  border-radius: 6px;
  z-index: 100;
  font-size: 13px;
  text-decoration: none;
  transition: top .15s;
}
.skip-link:focus {
  top: 16px;
}

.search-results-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--r-4);
  box-shadow: var(--shadow-2);
  max-height: 420px;
  overflow-y: auto;
  z-index: 100;
  display: none;
  text-align: left;
}
.search-results-dropdown.is-open {
  display: block;
}
.search-result-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--ink);
  text-decoration: none;
  transition: background .12s;
}
.search-result-item:last-child {
  border-bottom: none;
}
.search-result-item:hover, .search-result-item.is-selected {
  background: var(--accent-soft);
}
.search-result-code {
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  font-size: 13px;
  color: var(--accent-ink);
  padding: 3px 8px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 4px;
  flex-shrink: 0;
}
.search-result-info {
  flex: 1;
  min-width: 0;
}
.search-result-title {
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.search-result-catalog {
  font-size: 12px;
  color: var(--ink-3);
  display: block;
  margin-top: 2px;
}
.search-result-arrow {
  color: var(--accent);
  font-weight: 700;
  font-size: 15px;
  flex-shrink: 0;
}
.search-empty {
  padding: 24px;
  text-align: center;
  color: var(--ink-3);
  font-size: 14px;
}

/* YMYL Legal Disclaimer */
.site-disclaimer {
  max-width: var(--page-max);
  margin: 32px auto 0;
  padding: 20px 32px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--r-3);
  font-size: 12px;
  line-height: 1.6;
  color: var(--ink-3);
}
.site-disclaimer strong {
  color: var(--ink-2);
}

/* Tool & Utility Grid */
.tool-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 24px;
}
.tool-panel {
  border: 1px solid var(--border);
  border-radius: var(--r-4);
  padding: 24px;
  background: #fff;
}
.tool-panel h3 {
  margin: 0 0 16px;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
}
.tool-panel label {
  font-size: 12px;
  color: var(--ink-3);
  display: block;
  margin-bottom: 6px;
}
.tool-panel input {
  width: 100%;
  height: 40px;
  padding: 0 14px;
  border: 1px solid var(--border);
  border-radius: var(--r-2);
  font: inherit;
  font-size: 14px;
  outline: none;
  transition: border-color .12s, box-shadow .12s;
  margin-bottom: 12px;
}
.tool-panel input:focus {
  border-color: var(--accent);
  box-shadow: var(--shadow-focus);
}
.tool-panel .compact-results {
  max-height: 320px;
  overflow-y: auto;
  display: grid;
  gap: 8px;
}

/* 404 Page */
.page-404 {
  padding: 80px 0;
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}
.page-404__code {
  font-size: 96px;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 16px;
}
.page-404__title {
  font-size: 28px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 12px;
}
.page-404__text {
  font-size: 16px;
  color: var(--ink-3);
  line-height: 1.6;
  margin-bottom: 32px;
}

/* FAQ Widget */
.rf-section-faq {
  margin-top: 32px;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: var(--r-4);
  background: #fff;
}
.rf-section-faq-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}
.rf-faq-icon-bubble {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent-ink);
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 14px;
}
.rf-section-faq-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  margin: 0;
}
.rf-faq-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.rf-faq-card {
  padding: 16px 18px;
  border: 1px solid var(--border);
  border-radius: var(--r-3);
  background: var(--bg-soft);
}
.rf-faq-q-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-4);
  margin-bottom: 8px;
}
.rf-faq-card strong {
  display: block;
  font-size: 14px;
  color: var(--ink);
  margin-bottom: 8px;
  line-height: 1.4;
}
.rf-faq-card p {
  font-size: 13px;
  line-height: 1.55;
  color: var(--ink-2);
  margin: 0;
}

/* Crosslinks Section */
.rf-crosslink-section {
  margin-top: 24px;
  padding: 20px 24px;
  border: 1px solid var(--border);
  border-radius: var(--r-4);
  background: var(--bg-soft);
}
.rf-crosslink-header {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  margin-bottom: 16px;
}
.rf-crosslink-icon {
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 2px;
}
.rf-crosslink-heading {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 6px;
}
.rf-crosslink-note {
  font-size: 13px;
  color: var(--ink-3);
  line-height: 1.5;
  margin: 0;
}
.rf-crosslink-grid {
  display: grid;
  gap: 12px;
}
.rf-crosslink-card {
  display: block;
  padding: 14px 18px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--r-3);
  text-decoration: none;
  color: var(--ink);
  transition: border-color .12s, box-shadow .12s;
}
.rf-crosslink-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-1);
}
.rf-crosslink-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
  font-size: 12px;
}
.rf-crosslink-badge {
  font-weight: 600;
  color: var(--accent);
}
.rf-crosslink-code {
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
}
.rf-crosslink-title {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 4px;
}
.rf-crosslink-hint {
  font-size: 12px;
  color: var(--ink-4);
}

/* Risk Score Card */
.risk-score {
  margin-top: 24px;
  padding: 20px 24px;
  border: 1px solid var(--border);
  border-radius: var(--r-4);
  background: #fff;
}
.risk-score-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 16px;
}
.risk-score-head .eyebrow {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-4);
  display: block;
  margin-bottom: 4px;
}
.risk-score-head h2 {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  margin: 0;
}
.risk-score-value {
  font-size: 24px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
}
.risk-score-value span {
  font-size: 14px;
  color: var(--ink-4);
  font-weight: 500;
}
.risk-factor-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
  border-top: 1px solid var(--border);
  padding-top: 14px;
}
.risk-factor {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--ink-2);
}
.risk-factor-icon {
  font-weight: 700;
  color: var(--success);
  flex-shrink: 0;
}
.risk-factor-fail .risk-factor-icon {
  color: var(--warning);
}
.risk-factor-evidence {
  color: var(--ink-4);
}
.risk-method-link {
  display: inline-block;
  margin-top: 14px;
  font-size: 12px;
  color: var(--accent);
  font-weight: 500;
}

@media (max-width: 900px) {
  .tool-grid { grid-template-columns: 1fr; }
  .rf-faq-cards { grid-template-columns: 1fr; }
  .site-disclaimer { margin: 24px 20px 0; padding: 16px 20px; }
}