/* intrastat.com · hoja de estilos común (rediseño octubre 2026) */

@font-face { font-family: "Source Serif 4"; font-style: normal; font-weight: 200 900; font-display: swap;
  src: url("../fonts/source-serif-4-latin-opsz-normal.woff2") format("woff2-variations"); }
@font-face { font-family: "Source Serif 4"; font-style: italic; font-weight: 200 900; font-display: swap;
  src: url("../fonts/source-serif-4-latin-opsz-italic.woff2") format("woff2-variations"); }
@font-face { font-family: "IBM Plex Sans"; font-style: normal; font-weight: 400; font-display: swap;
  src: url("../fonts/ibm-plex-sans-latin-400-normal.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Sans"; font-style: italic; font-weight: 400; font-display: swap;
  src: url("../fonts/ibm-plex-sans-latin-400-italic.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Sans"; font-style: normal; font-weight: 500; font-display: swap;
  src: url("../fonts/ibm-plex-sans-latin-500-normal.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Sans"; font-style: normal; font-weight: 600; font-display: swap;
  src: url("../fonts/ibm-plex-sans-latin-600-normal.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Mono"; font-style: normal; font-weight: 400; font-display: swap;
  src: url("../fonts/ibm-plex-mono-latin-400-normal.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Mono"; font-style: normal; font-weight: 500; font-display: swap;
  src: url("../fonts/ibm-plex-mono-latin-500-normal.woff2") format("woff2"); }

:root {
  --ink: #10243f;
  --ink-2: #3a4d64;
  --ink-3: #66788d;
  --blue: #1f6fb2;
  --blue-deep: #144f86;
  --blue-wash: #e9f1f9;
  --paper: #ffffff;
  --mist: #f3f6f9;
  --rule: #dde4eb;
  --rule-strong: #bfcad6;
  --amber: #8a5a00;
  --amber-wash: #fbf5e8;
  --footer: #0f2139;

  --serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  --sans: "IBM Plex Sans", -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;

  --gutter: clamp(20px, 4vw, 56px);
  --max: 1440px;
  --header-h: 72px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--header-h) + 24px); }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; }
a { color: var(--blue); text-underline-offset: .18em; text-decoration-thickness: 1px; }
a:hover { color: var(--blue-deep); }
:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; border-radius: 2px; }
::selection { background: #cfe1f3; }

.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding-left: var(--gutter); padding-right: var(--gutter); }
.skip { position: absolute; left: -9999px; top: 8px; background: var(--ink); color: #fff; padding: 8px 14px; z-index: 100; }
.skip:focus { left: 8px; color: #fff; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- Cabecera ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.97);
  border-bottom: 1px solid var(--rule);
  backdrop-filter: saturate(1.2) blur(6px);
}
.site-header .wrap { display: flex; align-items: center; gap: 40px; height: var(--header-h); }
.brand { display: inline-flex; flex: none; }
.brand img { height: 38px; width: auto; display: block; }

.primary-nav { display: flex; align-items: stretch; gap: 4px; height: 100%; flex: 1; }
.primary-nav > a, .mega > summary {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 0 14px; height: 100%;
  color: var(--ink-2); text-decoration: none;
  font-size: 15px; font-weight: 500; letter-spacing: .005em;
  border-bottom: 2px solid transparent; margin-bottom: -1px;
  cursor: pointer; list-style: none; white-space: nowrap;
}
.mega > summary::-webkit-details-marker { display: none; }
.mega > summary::after {
  content: ""; width: 7px; height: 7px; margin-top: -4px;
  border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg); opacity: .6; transition: transform .15s ease;
}
.mega[open] > summary::after { transform: rotate(-135deg); margin-top: 3px; }
.primary-nav > a:hover, .mega > summary:hover, .mega[open] > summary { color: var(--ink); }
.primary-nav > a[aria-current="page"], .mega.is-current > summary { color: var(--ink); border-bottom-color: var(--blue); }

.mega-panel {
  position: absolute; left: 0; right: 0; top: 100%;
  background: var(--paper);
  border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule);
  box-shadow: 0 24px 40px -24px rgba(16,36,63,.28);
}
.mega-panel .wrap { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 48px; height: auto; padding-top: 36px; padding-bottom: 40px; align-items: start; }
.mega-group h2 { margin: 0 0 12px; font: 600 13px/1.3 var(--sans); color: var(--ink-3); letter-spacing: .01em; }
.mega-group ul { list-style: none; margin: 0; padding: 0; }
.mega-group a { display: block; padding: 6px 0; color: var(--ink); text-decoration: none; font-size: 15px; line-height: 1.4; }
.mega-group a:hover { color: var(--blue); }
.mega-group a[aria-current="page"] { color: var(--blue); font-weight: 500; }
.mega-foot { grid-column: 1 / -1; border-top: 1px solid var(--rule); padding-top: 18px; font-size: 14px; }

.header-tools { display: flex; align-items: center; gap: 8px; margin-left: auto; }
.header-search { position: relative; }
.header-search input {
  width: 230px; height: 38px; padding: 0 12px 0 36px;
  border: 1px solid var(--rule); border-radius: 6px; background: var(--mist);
  font: 400 14px var(--sans); color: var(--ink);
}
.header-search input::placeholder { color: var(--ink-3); }
.header-search input:focus { outline: none; border-color: var(--blue); background: #fff; box-shadow: 0 0 0 3px rgba(31,111,178,.15); }
.header-search svg { position: absolute; left: 11px; top: 11px; width: 16px; height: 16px; color: var(--ink-3); pointer-events: none; }
.nav-toggle { display: none; }

/* ---------- Botones y formularios ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 46px; padding: 0 22px; border-radius: 6px;
  font: 500 15px var(--sans); text-decoration: none; cursor: pointer;
  border: 1px solid transparent; transition: background .15s ease, border-color .15s ease;
}
.btn-primary { background: var(--ink); color: #fff; }
.btn-primary:hover { background: #1b3557; color: #fff; }
.btn-line { background: transparent; color: var(--ink); border-color: var(--rule-strong); }
.btn-line:hover { border-color: var(--ink); color: var(--ink); }
.field label { display: block; font-size: 14px; font-weight: 500; color: var(--ink-2); margin-bottom: 6px; }
.input, .field input, .field select, .field textarea {
  width: 100%; min-height: 46px; padding: 10px 14px;
  border: 1px solid var(--rule-strong); border-radius: 6px; background: #fff;
  font: 400 16px var(--sans); color: var(--ink);
}
.field textarea { min-height: 140px; resize: vertical; }
.input:focus, .field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(31,111,178,.15); }

/* ---------- Cabecera de página ---------- */
.page-head { background: var(--mist); border-bottom: 1px solid var(--rule); }
.page-head .wrap { padding-top: 40px; padding-bottom: 44px; }
.crumbs { display: flex; flex-wrap: wrap; gap: 6px 10px; margin: 0 0 22px; padding: 0; list-style: none; font-size: 14px; color: var(--ink-3); }
.crumbs li + li::before { content: "/"; margin-right: 10px; color: var(--rule-strong); }
.crumbs a { color: var(--ink-2); text-decoration: none; }
.crumbs a:hover { color: var(--blue); text-decoration: underline; }
.page-head h1 {
  margin: 0; max-width: 24ch;
  font: 600 clamp(32px, 4.2vw, 50px)/1.08 var(--serif);
  font-variation-settings: "opsz" 60; letter-spacing: -.012em; color: var(--ink);
}
.page-head .lede { margin: 18px 0 0; max-width: 64ch; font-size: 19px; line-height: 1.55; color: var(--ink-2); }
.page-meta { display: flex; flex-wrap: wrap; gap: 8px 28px; margin: 26px 0 0; padding: 0; list-style: none; font-size: 14px; color: var(--ink-3); }
.page-meta strong { color: var(--ink-2); font-weight: 500; }

/* ---------- Disposición de documentos ---------- */
.doc { display: grid; grid-template-columns: 250px minmax(0, 740px) 210px; gap: 56px; padding-top: 48px; padding-bottom: 96px; align-items: start; }
.doc.no-toc { grid-template-columns: 250px minmax(0, 820px); }
.doc-main { min-width: 0; }

.side-nav { position: sticky; top: calc(var(--header-h) + 32px); max-height: calc(100vh - var(--header-h) - 56px); overflow: auto; padding-right: 8px; font-size: 14.5px; scrollbar-width: thin; }
.side-nav h2 { margin: 26px 0 8px; font: 600 13px/1.3 var(--sans); color: var(--ink-3); }
.side-nav h2:first-child { margin-top: 0; }
.side-nav ul { list-style: none; margin: 0; padding: 0; border-left: 1px solid var(--rule); }
.side-nav a { display: block; padding: 5px 0 5px 14px; margin-left: -1px; border-left: 2px solid transparent; color: var(--ink-2); text-decoration: none; line-height: 1.4; }
.side-nav a:hover { color: var(--ink); border-left-color: var(--rule-strong); }
.side-nav a[aria-current="page"] { color: var(--ink); font-weight: 500; border-left-color: var(--blue); }

.toc { position: sticky; top: calc(var(--header-h) + 32px); font-size: 13.5px; }
.toc h2 { margin: 0 0 12px; font: 600 13px/1.3 var(--sans); color: var(--ink-3); }
.toc ol { list-style: none; margin: 0; padding: 0; border-left: 1px solid var(--rule); }
.toc a { display: block; margin-left: -1px; padding: 5px 0 5px 14px; border-left: 2px solid transparent; color: var(--ink-3); text-decoration: none; line-height: 1.45; transition: color .15s ease, border-color .15s ease; }
.toc a:hover { color: var(--ink); border-left-color: var(--rule-strong); }
.toc a.is-active { color: var(--ink); border-left-color: var(--blue); }

/* ---------- Texto de los artículos ---------- */
.prose { font-size: 17.5px; line-height: 1.7; color: var(--ink); overflow-wrap: break-word; }
.prose > :first-child { margin-top: 0; }
.prose h2 {
  margin: 56px 0 14px; font: 600 29px/1.2 var(--serif);
  font-variation-settings: "opsz" 36; letter-spacing: -.005em; color: var(--ink);
}
.prose > h2:first-child, .prose > section:first-child > h2:first-child { margin-top: 0; }
.prose h3 { margin: 38px 0 10px; font: 600 19px/1.35 var(--sans); color: var(--ink); }
.prose h4 { margin: 28px 0 8px; font: 600 17px/1.4 var(--sans); color: var(--ink-2); }
.prose p { margin: 0 0 18px; }
.prose ul, .prose ol { margin: 0 0 20px; padding-left: 1.3em; }
.prose li { margin: 6px 0; padding-left: .2em; }
.prose li::marker { color: var(--ink-3); }
.prose strong { font-weight: 600; }
.prose hr { border: 0; border-top: 1px solid var(--rule); margin: 40px 0; }
.prose blockquote { margin: 24px 0; padding: 2px 0 2px 22px; border-left: 2px solid var(--rule-strong); color: var(--ink-2); font-family: var(--serif); font-size: 19px; }
.prose code { font-family: var(--mono); font-size: .88em; background: var(--mist); padding: 1px 5px; border-radius: 3px; }
.prose img { border-radius: 4px; }
.prose .table-wrap { overflow-x: auto; margin: 26px 0 30px; border-top: 1px solid var(--ink); }
.prose table { width: 100%; border-collapse: collapse; font-size: 15px; line-height: 1.5; font-variant-numeric: tabular-nums; }
.prose th { text-align: left; vertical-align: bottom; padding: 12px 14px 10px 0; font-weight: 600; color: var(--ink); border-bottom: 1px solid var(--rule-strong); background: none; }
.prose td { text-align: left; vertical-align: top; padding: 11px 14px 11px 0; border-bottom: 1px solid var(--rule); }
.prose td:first-child, .prose th:first-child { padding-left: 0; }
.prose tr:hover td { background: #fafbfd; }
.prose table p { margin: 0; }

.prose h3:has(+ ul.normativa) { margin-top: 56px; padding-top: 22px; border-top: 1px solid var(--rule); font-size: 15px; color: var(--ink-2); }
.prose ul.normativa { list-style: none; padding: 0; font-size: 14.5px; line-height: 1.55; color: var(--ink-2); }
.prose ul.normativa li { padding: 0 0 0 16px; margin: 8px 0; position: relative; }
.prose ul.normativa li::before { content: ""; position: absolute; left: 0; top: .7em; width: 6px; height: 1px; background: var(--ink-3); }
.prose p.rev { font-size: 14px; color: var(--ink-3); margin-top: 18px; }
.prose dl.glosario dt { font-weight: 600; margin-top: 22px; }
.prose dl.glosario dd { margin: 4px 0 0; color: var(--ink-2); }

.update-box, .note {
  margin: 0 0 32px; padding: 18px 22px;
  background: var(--blue-wash); border-left: 3px solid var(--blue); border-radius: 0 4px 4px 0;
  font-size: 16px; line-height: 1.6;
}
.update-box.warn, .note.warn { background: var(--amber-wash); border-left-color: #c8962e; }
.update-box h3, .note h3 { margin: 0 0 6px; font-size: 16px; }
.update-box p:last-child, .note p:last-child { margin-bottom: 0; }

/* ---------- Series (artículos en varias partes) ---------- */
.series-head { margin: 0 0 40px; padding: 0 0 24px; border-bottom: 1px solid var(--rule); }
.series-head p { margin: 0 0 12px; font-size: 14px; color: var(--ink-3); }
.series-head p strong { color: var(--ink); font-weight: 600; }
.series-bar { display: flex; gap: 4px; margin: 0; padding: 0; list-style: none; }
.series-bar li { flex: 1; }
.series-bar a { display: block; height: 22px; position: relative; }
.series-bar a::before { content: ""; position: absolute; left: 0; right: 0; top: 9px; height: 4px; background: var(--rule); border-radius: 2px; transition: background .15s ease; }
.series-bar a.done::before { background: #9dbedd; }
.series-bar a[aria-current="page"]::before { background: var(--blue); }
.series-bar a:hover::before { background: var(--blue-deep); }
.series-parts { margin: 14px 0 0; font-size: 14.5px; }
.series-parts summary { cursor: pointer; color: var(--ink-2); list-style: none; display: inline-flex; gap: 6px; align-items: center; }
.series-parts summary::-webkit-details-marker { display: none; }
.series-parts summary::after { content: ""; width: 6px; height: 6px; border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor; transform: rotate(45deg); margin-top: -3px; }
.series-parts[open] summary::after { transform: rotate(-135deg); margin-top: 3px; }
.series-parts ol { margin: 12px 0 0; padding: 0; list-style: none; counter-reset: part; }
.series-parts li { counter-increment: part; display: grid; grid-template-columns: 28px 1fr; padding: 6px 0; border-top: 1px solid var(--rule); }
.series-parts li::before { content: counter(part); color: var(--ink-3); font-variant-numeric: tabular-nums; }
.series-parts a { color: var(--ink-2); text-decoration: none; }
.series-parts a:hover { color: var(--blue); }
.series-parts [aria-current="page"] { color: var(--ink); font-weight: 500; }

.pager { display: grid; grid-template-columns: 1fr 1fr; gap: 0; margin: 64px 0 0; border-top: 1px solid var(--ink); }
.pager a { display: block; padding: 20px 0 6px; text-decoration: none; color: var(--ink); }
.pager a + a, .pager .next { text-align: right; }
.pager .next:only-child { grid-column: 2; }
.pager span { display: block; font-size: 13.5px; color: var(--ink-3); margin-bottom: 4px; }
.pager strong { display: block; font: 600 19px/1.35 var(--serif); font-variation-settings: "opsz" 24; }
.pager a:hover strong { color: var(--blue); }

.doc-end { margin-top: 64px; padding-top: 22px; border-top: 1px solid var(--rule); font-size: 14px; color: var(--ink-3); }

/* ---------- Secciones genéricas ---------- */
.section { padding: 88px 0; }
.section + .section { border-top: 1px solid var(--rule); }
.section-mist { background: var(--mist); border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
.section-head { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 48px; margin-bottom: 44px; align-items: end; }
.section-head h2 { margin: 0; font: 600 clamp(28px, 3vw, 38px)/1.15 var(--serif); font-variation-settings: "opsz" 48; letter-spacing: -.008em; }
.section-head p { margin: 0; color: var(--ink-2); max-width: 60ch; }

/* ---------- Pie ---------- */
.site-footer { background: var(--footer); color: #c5d0dd; font-size: 15px; }
.site-footer .wrap { padding-top: 64px; padding-bottom: 36px; }
.footer-grid { display: grid; grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr)); gap: 48px; }
.footer-grid .footer-name { font: 600 26px/1.1 var(--serif); color: #fff; margin: 0 0 14px; letter-spacing: .01em; }
.footer-grid p { margin: 0; max-width: 40ch; line-height: 1.6; color: #a9b7c7; }
.footer-grid h2 { margin: 4px 0 14px; font: 600 13px/1.3 var(--sans); color: #fff; letter-spacing: .01em; }
.footer-grid ul { list-style: none; margin: 0; padding: 0; }
.footer-grid li { margin: 0 0 9px; }
.site-footer a { color: #c5d0dd; text-decoration: none; }
.site-footer a:hover { color: #fff; text-decoration: underline; }
.footer-legal { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px 32px; margin-top: 56px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.12); font-size: 13.5px; color: #8b9bb0; }
.footer-legal nav { display: flex; flex-wrap: wrap; gap: 8px 24px; }

/* ---------- Responsive ---------- */
@media (max-width: 1280px) {
  .doc { grid-template-columns: 230px minmax(0, 1fr); gap: 48px; }
  .toc { display: none; }
  .header-search input { width: 180px; }
}
@media (max-width: 1080px) {
  :root { --header-h: 64px; }
  .site-header .wrap { gap: 16px; }
  .brand img { height: 34px; }
  .nav-toggle {
    display: inline-flex; align-items: center; gap: 8px; margin-left: auto;
    height: 40px; padding: 0 14px; border: 1px solid var(--rule-strong); border-radius: 6px;
    background: #fff; color: var(--ink); font: 500 15px var(--sans); cursor: pointer;
  }
  .nav-toggle span { display: block; width: 16px; height: 1.5px; background: currentColor; box-shadow: 0 -5px 0 currentColor, 0 5px 0 currentColor; }
  .header-tools { display: none; }
  .primary-nav {
    display: none; position: absolute; left: 0; right: 0; top: 100%;
    height: calc(100vh - var(--header-h)); overflow: auto;
    flex-direction: column; gap: 0; padding: 8px var(--gutter) 40px; background: #fff; border-top: 1px solid var(--rule);
  }
  .site-header.nav-open .primary-nav { display: flex; }
  .primary-nav > a, .mega > summary { height: auto; padding: 16px 0; border-bottom: 1px solid var(--rule); font-size: 17px; justify-content: space-between; margin: 0; }
  .primary-nav > a[aria-current="page"], .mega.is-current > summary { border-bottom-color: var(--rule); color: var(--blue); }
  .mega { display: block; width: 100%; }
  .primary-nav > a, .mega > summary { display: flex; width: 100%; }
  .mega-panel { position: static; box-shadow: none; border: 0; }
  .mega-panel .wrap { grid-template-columns: 1fr; gap: 24px; padding: 18px 0 24px; }
  .mobile-search { display: block !important; padding: 16px 0 8px; }
  .doc, .doc.no-toc { grid-template-columns: minmax(0, 1fr); gap: 0; padding-top: 32px; }
  .side-nav { position: static; max-height: none; order: 2; margin-top: 64px; padding-top: 28px; border-top: 1px solid var(--rule); }
  .section-head { grid-template-columns: 1fr; gap: 14px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  .prose { font-size: 16.5px; }
  .prose h2 { font-size: 25px; margin-top: 44px; }
  .page-head .wrap { padding-top: 28px; padding-bottom: 32px; }
  .page-head .lede { font-size: 17px; }
  .section { padding: 64px 0; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .pager { grid-template-columns: 1fr; }
  .pager a + a, .pager .next { text-align: left; border-top: 1px solid var(--rule); }
  .pager .next:only-child { grid-column: 1; }
}
.mobile-search { display: none; }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { transition: none !important; animation: none !important; scroll-behavior: auto !important; } }
@media print {
  .site-header, .site-footer, .side-nav, .toc, .series-head, .pager { display: none !important; }
  .doc { display: block; padding: 0; }
  .page-head { background: none; border: 0; }
}

/* ---------- Portada ---------- */
.hero { border-bottom: 1px solid var(--rule); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(40px, 6vw, 112px); padding-top: clamp(48px, 7vw, 104px); padding-bottom: clamp(56px, 7vw, 104px); align-items: center; }
.hero h1 { margin: 0; max-width: 14ch; font: 600 clamp(40px, 5.6vw, 76px)/1.02 var(--serif); font-variation-settings: "opsz" 72; letter-spacing: -.02em; }
.hero-lede { margin: 26px 0 0; max-width: 56ch; font-size: 19px; line-height: 1.6; color: var(--ink-2); }
.hero-search { margin-top: 36px; max-width: 640px; }
.hero-scope { display: inline-flex; margin: 0 0 12px; padding: 3px; border: 1px solid var(--rule); border-radius: 7px; background: var(--mist); }
.hero-scope label { position: relative; }
.hero-scope input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.hero-scope span { display: block; padding: 6px 14px; border-radius: 5px; font-size: 14px; font-weight: 500; color: var(--ink-3); }
.hero-scope input:checked + span { background: #fff; color: var(--ink); box-shadow: 0 1px 2px rgba(16,36,63,.12); }
.hero-scope input:focus-visible + span { outline: 2px solid var(--blue); outline-offset: 1px; }
.hero-search-row { display: flex; gap: 8px; }
.hero-search-row input { flex: 1; min-width: 0; height: 54px; padding: 0 18px; border: 1px solid var(--rule-strong); border-radius: 6px; font: 400 17px var(--sans); color: var(--ink); }
.hero-search-row input:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(31,111,178,.15); }
.hero-search-row .btn { height: 54px; padding: 0 28px; }
.hero-links { display: flex; flex-wrap: wrap; gap: 8px 28px; margin: 22px 0 0; font-size: 15px; }

.cn8-anatomy { margin: 0; padding: 32px 32px 28px; border: 1px solid var(--rule); border-radius: 8px; background: linear-gradient(180deg, #fbfcfd, #f5f8fb); }
.cn8-anatomy figcaption { font-size: 14px; font-weight: 500; color: var(--ink-3); }
.cn8-code { display: flex; gap: .32em; margin: 14px 0 26px; font: 500 clamp(40px, 4.6vw, 64px)/1 var(--mono); letter-spacing: -.01em; text-decoration: none; color: var(--ink); }
.cn8-code span { position: relative; padding-bottom: 14px; }
.cn8-code span::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 4px; border-radius: 2px; }
.cn8-code .d1::after, .cn8-levels .l1 .cd::before { background: #10243f; }
.cn8-code .d2::after, .cn8-levels .l2 .cd::before { background: #1f6fb2; }
.cn8-code .d3::after, .cn8-levels .l3 .cd::before { background: #6fa3d3; }
.cn8-code .d4::after, .cn8-levels .l4 .cd::before { background: #b9d3ea; }
.cn8-code:hover { color: var(--blue-deep); }
.cn8-levels { list-style: none; margin: 0; padding: 0; }
.cn8-levels li { display: grid; grid-template-columns: 124px 124px 1fr; gap: 12px; padding: 11px 0; border-top: 1px solid var(--rule); font-size: 14.5px; line-height: 1.45; align-items: baseline; }
.cn8-levels .lv { color: var(--ink-3); }
.cn8-levels .cd { font-family: var(--mono); font-size: 14px; color: var(--ink); white-space: nowrap; display: inline-flex; align-items: center; gap: 8px; }
.cn8-levels .cd::before { content: ""; width: 10px; height: 4px; border-radius: 2px; flex: none; }
.cn8-levels .tx { color: var(--ink); }
.cn8-note { margin: 16px 0 0; padding-top: 14px; border-top: 1px solid var(--rule); font-size: 13.5px; line-height: 1.55; color: var(--ink-3); }

.facts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 64px; margin: 0; border-top: 1px solid var(--ink); }
.facts > div { display: grid; grid-template-columns: 170px 1fr; gap: 24px; padding: 22px 0; border-bottom: 1px solid var(--rule-strong); }
.facts dt { font: 600 18px/1.4 var(--serif); font-variation-settings: "opsz" 20; }
.facts dd { margin: 0; color: var(--ink-2); font-size: 16px; line-height: 1.6; }
.facts dd strong { color: var(--ink); font-weight: 600; }
.facts dd a { white-space: nowrap; }

.index-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0 48px; border-top: 1px solid var(--ink); }
.index-list li { border-bottom: 1px solid var(--rule); }
.index-list a { display: block; height: 100%; padding: 24px 0 26px; text-decoration: none; color: var(--ink); }
.index-list strong { display: block; font: 600 21px/1.3 var(--serif); font-variation-settings: "opsz" 24; margin-bottom: 8px; }
.index-list span { display: block; color: var(--ink-2); font-size: 15.5px; line-height: 1.55; }
.index-list a:hover strong { color: var(--blue); }

.chapter-grid { list-style: none; margin: 0; padding: 0; columns: 4 260px; column-gap: 40px; font-size: 14.5px; }
.chapter-grid li { break-inside: avoid; border-top: 1px solid var(--rule); }
.chapter-grid a { display: grid; grid-template-columns: 34px 1fr; padding: 8px 0; color: var(--ink-2); text-decoration: none; line-height: 1.4; }
.chapter-grid a span { font-family: var(--mono); font-size: 13.5px; color: var(--ink-3); padding-top: 1px; }
.chapter-grid a:hover { color: var(--blue); }
.about .section-head { margin-bottom: 0; align-items: start; }
.about .section-head p + p { margin-top: 14px; }

@media (max-width: 1080px) {
  .hero-grid { grid-template-columns: 1fr; }
  .facts { grid-template-columns: 1fr; }
  .index-list { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .cn8-anatomy { padding: 24px 20px; }
  .cn8-levels li { grid-template-columns: 1fr auto; gap: 2px 12px; }
  .cn8-levels .tx { grid-column: 1 / -1; }
  .cn8-levels .lv { order: 0; }
  .facts > div { grid-template-columns: 1fr; gap: 6px; }
  .index-list { grid-template-columns: 1fr; }
  .hero-search-row { flex-direction: column; }
  .hero-search-row input { flex: none; }
}

/* ---------- Índice de la normativa ---------- */
.catalog { display: grid; grid-template-columns: 280px minmax(0, 1fr); gap: 64px; padding-top: 48px; padding-bottom: 96px; align-items: start; }
.catalog-tools { position: sticky; top: calc(var(--header-h) + 32px); }
.catalog-count { margin: 10px 0 0; min-height: 1.4em; font-size: 14px; color: var(--ink-3); }
.catalog-jump { margin-top: 18px; border-top: 1px solid var(--rule); font-size: 14.5px; }
.catalog-jump a { display: flex; justify-content: space-between; padding: 9px 0; border-bottom: 1px solid var(--rule); color: var(--ink-2); text-decoration: none; }
.catalog-jump a:hover { color: var(--blue); }
.catalog-jump span { color: var(--ink-3); font-variant-numeric: tabular-nums; }
.catalog-group + .catalog-group { margin-top: 64px; }
.catalog-group h2 { margin: 0 0 4px; padding-bottom: 14px; border-bottom: 1px solid var(--ink); font: 600 28px/1.2 var(--serif); font-variation-settings: "opsz" 36; }
.catalog-group ul { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 48px; }
.catalog-group li { padding: 18px 0 20px; border-bottom: 1px solid var(--rule); }
.catalog-group li a { font: 600 18px/1.35 var(--serif); font-variation-settings: "opsz" 20; color: var(--ink); text-decoration: none; }
.catalog-group li a:hover { color: var(--blue); }
.catalog-group li p { margin: 6px 0 0; font-size: 15px; line-height: 1.55; color: var(--ink-2); }
.catalog-empty { padding: 24px 0; color: var(--ink-2); }
@media (max-width: 1080px) {
  .catalog { grid-template-columns: 1fr; gap: 32px; padding-top: 32px; }
  .catalog-tools { position: static; }
  .catalog-jump { display: none; }
  .catalog-group ul { grid-template-columns: 1fr; }
}

/* ---------- Preguntas frecuentes ---------- */
.faq { display: grid; grid-template-columns: 250px minmax(0, 860px); gap: 64px; padding-top: 48px; padding-bottom: 96px; align-items: start; }
.faq-nav { position: sticky; top: calc(var(--header-h) + 32px); border-top: 1px solid var(--rule); font-size: 14.5px; }
.faq-nav a { display: flex; justify-content: space-between; padding: 10px 0; border-bottom: 1px solid var(--rule); color: var(--ink-2); text-decoration: none; }
.faq-nav a:hover { color: var(--blue); }
.faq-nav span { color: var(--ink-3); }
.faq-group + .faq-group { margin-top: 72px; }
.faq-group-head { display: flex; justify-content: space-between; align-items: baseline; gap: 24px; padding-bottom: 14px; border-bottom: 1px solid var(--ink); }
.faq-group-head h2 { margin: 0; font: 600 28px/1.2 var(--serif); font-variation-settings: "opsz" 36; }
.faq-group-head a { font-size: 14.5px; white-space: nowrap; }
.qa { border-bottom: 1px solid var(--rule); }
.qa summary { position: relative; padding: 20px 44px 20px 0; cursor: pointer; list-style: none; font: 600 18.5px/1.4 var(--serif); font-variation-settings: "opsz" 20; color: var(--ink); }
.qa summary::-webkit-details-marker { display: none; }
.qa summary::before, .qa summary::after { content: ""; position: absolute; right: 8px; top: 50%; width: 14px; height: 1.5px; background: var(--ink-3); transition: transform .2s ease; }
.qa summary::after { transform: rotate(90deg); }
.qa[open] summary::after { transform: rotate(0deg); }
.qa summary:hover { color: var(--blue); }
.qa-answer { padding: 0 44px 24px 0; color: var(--ink-2); font-size: 16.5px; line-height: 1.7; max-width: 72ch; }
.qa-answer p { margin: 0; }
@media (max-width: 1080px) {
  .faq { grid-template-columns: 1fr; gap: 32px; padding-top: 32px; }
  .faq-nav { position: static; }
}

/* ---------- Códigos CN8 ---------- */
.doc.cn8-doc { grid-template-columns: 280px minmax(0, 1fr); }
.side-nav .cn8-ch { font-family: var(--mono); font-size: 13px; color: var(--ink-3); margin-right: 4px; }
.cn8-filter { display: flex; align-items: center; gap: 16px; margin-bottom: 24px; }
.cn8-filter .input { max-width: 440px; }
.cn8-filter span { font-size: 14px; color: var(--ink-3); white-space: nowrap; }
.cn8-table { width: 100%; border-collapse: collapse; border-top: 1px solid var(--ink); font-size: 15px; line-height: 1.5; }
.cn8-table th { white-space: nowrap; position: sticky; top: var(--header-h); z-index: 2; background: #fff; text-align: left; padding: 12px 16px 10px 0; font-size: 13.5px; font-weight: 600; color: var(--ink-2); border-bottom: 1px solid var(--rule-strong); }
.cn8-table td { padding: 9px 16px 9px 0; border-bottom: 1px solid var(--rule); vertical-align: top; }
.cn8-table .code { font-family: var(--mono); font-size: 14px; white-space: nowrap; width: 9.5em; color: var(--ink); }
.cn8-table .unit { width: 7em; font-family: var(--mono); font-size: 13.5px; color: var(--ink-2); white-space: nowrap; }
.cn8-table .unit abbr { text-decoration: none; border-bottom: 1px dotted var(--rule-strong); cursor: help; }
.cn8-table .lvl { display: block; padding-left: calc(var(--lvl, 0) * 14px); }
.cn8-table tr.h4 td { background: var(--mist); font-weight: 600; padding-top: 14px; padding-bottom: 12px; }
.cn8-table tr.h4 .code { padding-left: 10px; }
.cn8-table tr.sub td { color: var(--ink-2); }
.cn8-table tr.c8:hover td { background: #fafbfd; }
.flag { color: var(--blue); font-weight: 600; margin-left: 2px; }
.cn8-source { margin-top: 28px; font-size: 14px; color: var(--ink-3); max-width: 80ch; }
@media (max-width: 640px) {
  .cn8-table { font-size: 14px; }
  .cn8-table .code { width: auto; font-size: 13px; }
  .cn8-table th:nth-child(3), .cn8-table td:nth-child(3) { display: none; }
  .cn8-filter { flex-direction: column; align-items: stretch; }
}

/* ---------- Buscador CN8 ---------- */
.finder { background: var(--mist); border-bottom: 1px solid var(--rule); }
.finder .wrap { padding-top: 40px; padding-bottom: 52px; }
.finder h1 { margin: 0; font: 600 clamp(34px, 4.4vw, 54px)/1.08 var(--serif); font-variation-settings: "opsz" 60; letter-spacing: -.014em; }
.finder .lede { margin: 16px 0 0; max-width: 64ch; font-size: 18.5px; color: var(--ink-2); }
.finder-form { display: flex; gap: 8px; margin-top: 30px; max-width: 760px; }
.finder-form input { flex: 1; min-width: 0; height: 60px; padding: 0 20px; border: 1px solid var(--rule-strong); border-radius: 6px; background: #fff; font: 400 19px var(--sans); color: var(--ink); }
.finder-form input:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(31,111,178,.15); }
.finder-form .btn { height: 60px; padding: 0 32px; font-size: 16px; }
.finder-hint { margin: 14px 0 0; font-size: 14px; color: var(--ink-3); }
.finder-hint code { font-family: var(--mono); font-size: 13px; background: #fff; border: 1px solid var(--rule); padding: 1px 5px; border-radius: 3px; color: var(--ink-2); }
.results { padding-top: 48px; padding-bottom: 80px; }
.results-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: 8px 24px; margin-bottom: 18px; }
.results-head h2 { margin: 0; font: 600 24px/1.3 var(--serif); }
.results-head p { margin: 0; font-size: 14px; color: var(--ink-3); }
.results .cn8-table tr.ctx td { color: var(--ink-3); }
.results .cn8-table .code a { color: var(--ink); text-decoration: none; }
.results .cn8-table .code a:hover { color: var(--blue); text-decoration: underline; }
.results mark { background: #fdeeb5; color: inherit; padding: 0 1px; border-radius: 2px; }
.results-empty { padding: 20px 0; color: var(--ink-2); }
.results-more { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-top: 24px; padding-top: 18px; border-top: 1px solid var(--rule); }
.results-more p { margin: 0; font-size: 14px; color: var(--ink-3); }
.sections-index { columns: 3 340px; column-gap: 56px; }
.sections-index .sec { break-inside: avoid; margin-bottom: 36px; }
.sections-index h3 { margin: 0 0 8px; padding-bottom: 10px; border-bottom: 1px solid var(--ink); font: 600 17px/1.35 var(--serif); font-variation-settings: "opsz" 20; }
.sections-index h3 span { display: block; font: 500 13px var(--sans); color: var(--ink-3); margin-bottom: 4px; }
.sections-index ul { list-style: none; margin: 0; padding: 0; font-size: 14.5px; }
.sections-index li { border-bottom: 1px solid var(--rule); }
.sections-index a { display: grid; grid-template-columns: 30px 1fr; padding: 7px 0; color: var(--ink-2); text-decoration: none; line-height: 1.4; }
.sections-index a span { font-family: var(--mono); font-size: 13px; color: var(--ink-3); padding-top: 1px; }
.sections-index a:hover { color: var(--blue); }
.about-cn8 { align-items: start; margin-bottom: 0; }
@media (max-width: 640px) {
  .finder-form { flex-direction: column; }
  .finder-form input { flex: none; }
  .results-more { flex-direction: column; align-items: stretch; }
}

/* ---------- Calculadora ---------- */
.calc { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 72px; padding-top: 48px; padding-bottom: 96px; align-items: start; }
.calc h2 { margin: 0 0 22px; font: 600 26px/1.25 var(--serif); font-variation-settings: "opsz" 30; }
.calc-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px 24px; }
.calc-grid .field.hidden { display: none; }
.calc .actions { display: flex; gap: 10px; margin-top: 28px; }
.calc .result { margin-top: 28px; padding: 22px 24px; border-top: 2px solid var(--ink); background: var(--mist); font-size: 16px; color: var(--ink-2); }
.calc .result.ok { color: var(--ink); font: 600 22px/1.4 var(--serif); font-variant-numeric: tabular-nums; }
.calc .result.error { border-top-color: #b4441c; background: #fbf0eb; color: #7a2a0c; }
.calc-help { font-size: 16px; position: sticky; top: calc(var(--header-h) + 32px); }
.calc-formula { margin: 18px 0 22px; padding: 18px 20px; border-left: 3px solid var(--blue); background: var(--blue-wash); font-size: 15px; line-height: 1.7; }
@media (max-width: 1080px) { .calc { grid-template-columns: 1fr; gap: 56px; } .calc-help { position: static; } }
@media (max-width: 640px) { .calc-grid { grid-template-columns: 1fr; } .calc .actions { flex-direction: column; } }

/* ---------- Oficinas ---------- */
.office-list { list-style: none; margin: 0; padding: 0; display: grid !important; grid-template-columns: repeat(3, minmax(0, 1fr)) !important; column-gap: 40px; }
.office-list li { padding: 18px 0 20px; border-bottom: 1px solid var(--rule); }
.office-list h3 { margin: 0 0 6px; font: 600 17px/1.35 var(--serif); font-variation-settings: "opsz" 20; }
.office-list p { margin: 0; font-size: 14.5px; line-height: 1.6; color: var(--ink-2); font-variant-numeric: tabular-nums; }
@media (max-width: 1280px) { .office-list { grid-template-columns: repeat(2, minmax(0, 1fr)) !important; } }
@media (max-width: 640px) { .office-list { grid-template-columns: 1fr !important; } }

/* ---------- Contacto ---------- */
.contact { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 4fr); gap: 72px; padding-top: 48px; padding-bottom: 96px; align-items: start; }
.contact .field.full { grid-column: 1 / -1; }
.contact .field.hp { position: absolute; left: -9999px; }
.contact .opt { font-weight: 400; color: var(--ink-3); }
.contact-legal { margin: 20px 0 22px; font-size: 14px; color: var(--ink-3); }
.contact-aside { padding-top: 22px; border-top: 1px solid var(--ink); font-size: 15.5px; color: var(--ink-2); }
.contact-aside h2 { margin: 0 0 10px; font: 600 20px/1.3 var(--serif); color: var(--ink); }
.contact-aside ul { padding-left: 1.1em; }
.contact-aside li { margin: 6px 0; }
@media (max-width: 1080px) { .contact { grid-template-columns: 1fr; gap: 48px; } }
.page-body { padding-top: 48px; padding-bottom: 96px; }
.page-body .prose { max-width: 760px; }

/* ---------- Aviso de cookies ---------- */
.cookie-bar { position: fixed; left: 0; right: 0; bottom: 0; z-index: 60; background: #fff; border-top: 1px solid var(--rule-strong); box-shadow: 0 -12px 32px -20px rgba(16,36,63,.35); }
.cookie-bar[hidden] { display: none; }
.cookie-bar .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px 40px; padding-top: 18px; padding-bottom: 18px; }
.cookie-bar p { margin: 0; max-width: 78ch; font-size: 15px; color: var(--ink-2); }
.cookie-actions { display: flex; gap: 8px; flex: none; }
.cookie-actions .btn { height: 42px; padding: 0 20px; }
.link-button { background: none; border: 0; padding: 0; font: inherit; color: #c5d0dd; cursor: pointer; }
.link-button:hover { color: #fff; text-decoration: underline; }
@media (max-width: 640px) { .cookie-bar .wrap { flex-direction: column; align-items: stretch; } .cookie-actions .btn { flex: 1; } }